JP4466307B2 - Ventilator and building - Google Patents

Description

  The present invention relates to a ventilator that is installed in a house and ventilates indoors and outdoors, and a building including the ventilator, and more particularly, a ventilator having an indirect evaporative cooling function that cools air using heat of vaporization of water. It relates to equipment and buildings.

  Conventionally, an air conditioner for cooling a building has been proposed, but an air conditioner including an indirect evaporative cooling device that cools air using the heat of vaporization of water has been proposed (for example, see Patent Document 1). . The indirect evaporative cooling device is configured to exchange sensible heat (temperature) between flow paths partitioned by a partition wall, cools air using the vaporization heat of water in one flow path, The cooling air is exchanged between the two, and the air passing through the other flow path is cooled and supplied to the room or the like.

JP 2004-190907 A

  The air conditioner provided with the conventional indirect vaporization cooling apparatus is installed in an office, a store, etc., and installation in a house is not considered. When installing an air conditioner equipped with an indirect evaporative cooling device in a house, it is important to treat the water used for cooling, but the conventional device does not have a water treatment device suitable for use in the house. There is. In addition, there is a problem that the running cost cannot be reduced by reducing water consumption.

  The present invention has been made to solve such a problem, and an object thereof is to provide a ventilator having an indirect evaporative cooling function that can be installed in a house and a building having such a ventilator. And

In order to solve the above-described problems, the invention of claim 1 includes an air supply passage that communicates from the outside air inlet to the air supply outlet, an exhaust passage that communicates from the return air inlet to the exhaust outlet, and an air supply passage. Alternatively, it has a working air channel that communicates with the exhaust channel and a working air channel that supplies working air and a product air channel that communicates with the air supply channel and supplies product air, and the working air is cooled by the heat of vaporization of water. An indirect evaporative cooling unit in which sensible heat exchange between the working air and the product air is performed between the working air flow path and the product air flow path partitioned by the partition walls, and a water supply / drainage apparatus provided in the indirect evaporative cooling unit for supplying and discharging water When, and a collecting device for reuse water vaporized by indirect evaporative cooling unit to supply water recovered, the recovery device, branched from the inlet channel or the exhaust passage, through the exhaust outlet and the communicating It includes a collection exhaust passage, a working air with cold air flowing through the collecting exhaust passage cooling to condense moisture and recovering it.

According to the second aspect of the present invention, working air is supplied in communication with the air supply passage communicating from the outside air inlet to the air supply outlet, the exhaust passage communicating from the outside air inlet to the exhaust outlet, and the exhaust passage. The working air flow path and the product air flow path are connected to the working air flow path and the air supply flow path, and the product air flow path is supplied. The indirect evaporative cooling unit, in which sensible heat exchange between working air and product air is performed between the flow paths, the indirect evaporative cooling unit, the water supply / drainage device that supplies and drains water, and the water vaporized by the indirect evaporative cooling unit are collected. And a recovery device that is reused for water supply, the recovery device branches from the air supply flow path or the exhaust flow path, and has a recovery exhaust flow path that communicates with the exhaust outlet and flows through the recovery exhaust flow path. By cooling the working air in the cold of A to condense water and recovering it.

According to a third aspect of the present invention, there is provided an air supply passage that communicates from the return air inlet to the air supply outlet, an exhaust passage that communicates from the return air inlet to the exhaust outlet, and a working air that communicates with the exhaust passage. A working air flow path that is in communication with the supplied working air flow path and a supply air flow path, and that is supplied with product air; the working air is cooled by the heat of vaporization of water; The indirect evaporative cooling unit in which sensible heat exchange between the working air and product air is performed between the product air flow paths , the water supply / drainage device installed in the indirect evaporative cooling unit, and the water vaporized by the indirect evaporative cooling unit. A recovery device that recovers and reuses the water supply. The recovery device branches from the air supply flow path or the exhaust flow path, and includes a recovery exhaust flow path that communicates with the exhaust outlet and flows through the recovery exhaust flow path. By cooling the working air in the cold of A to condense water and recovering it.

In the first to third aspects of the invention , water consumption is suppressed by collecting the water vaporized by the indirect evaporative cooling unit and reusing it for supplying water to the indirect evaporative cooling unit.

The invention according to claim 4 communicates with the air supply passage communicating from the outside air inlet to the air supply outlet, the exhaust passage communicating from the return air inlet to the exhaust outlet, and the air supply passage or the exhaust passage. Working air flow path for supplying working air and product air flow path for supplying product air in communication with the supply air flow path. The working air is cooled by the heat of vaporization of water and partitioned by a partition wall. Indirect evaporative cooling unit in which sensible heat exchange between working air and product air is performed between flow channel and product air flow channel, indirect evaporative cooling unit is installed in indirect evaporative cooling unit, and vaporized by indirect evaporative cooling unit moisture recovered to a recovery system to recycle the water supply, recovery system, the working air flow path and the communication, which is disposed on the outlet side of the product air passage of an indirect evaporative cooling unit A cooling exhaust flow path, a working air flow path disposed on the inlet side of the product air flow path, and a recovery exhaust flow path having a heat receiving portion with the cooling exhaust flow path. The working air that flows is cooled by the cold heat of the working air that flows through the cooling exhaust passage, and moisture is condensed and collected .

According to the fifth aspect of the present invention, the working air is supplied in communication with the air supply passage communicating from the outside air inlet to the air outlet, the exhaust passage communicating from the outside air inlet to the exhaust outlet, and the exhaust passage. The working air flow path and the product air flow path are connected to the working air flow path and the air supply flow path, and the product air flow path is supplied. The indirect evaporative cooling unit, in which sensible heat exchange between working air and product air is performed between the flow paths, the indirect evaporative cooling unit, the water supply / drainage device that supplies and drains water, and the water vaporized by the indirect evaporative cooling unit are collected. and a collecting device for reuse water supply Te, recovery system, cooling exhaust gas communicates with the working air passage disposed on the outlet side of the product air passage of an indirect evaporative cooling unit The working air flow path is connected to a working air flow path disposed on the inlet side of the product air flow path, and has a heat recovery section having a heat receiving portion with the cooling exhaust flow path, and cools the working air flowing through the recovery exhaust flow path It is characterized in that it is cooled by the cold air of the working air flowing through the exhaust flow path, and moisture is condensed and collected .

According to the sixth aspect of the present invention, there is provided an air supply passage that communicates from the return air inlet to the air supply outlet, an exhaust passage that communicates from the return air inlet to the exhaust outlet, and a working air that communicates with the exhaust passage. A working air flow path that is in communication with the supplied working air flow path and a supply air flow path, and that is supplied with product air; the working air is cooled by the heat of vaporization of water; The indirect evaporative cooling unit in which sensible heat exchange between the working air and product air is performed between the product air flow paths, the water supply / drainage device installed in the indirect evaporative cooling unit, and the water vaporized by the indirect evaporative cooling unit. recovered and a recovery device for reuse water, the recovery device, cooling exhaust gas communicates with the working air passage disposed on the outlet side of the product air passage of an indirect evaporative cooling unit The working air flow path is connected to a working air flow path disposed on the inlet side of the product air flow path, and has a heat recovery section having a heat receiving portion with the cooling exhaust flow path, and cools the working air flowing through the recovery exhaust flow path It is characterized in that it is cooled by the cold air of the working air flowing through the exhaust flow path, and moisture is condensed and collected .

In the inventions according to claims 4 to 6 , water consumption is suppressed by collecting the water vaporized by the indirect evaporative cooling unit and reusing it for supplying water to the indirect evaporative cooling unit.

The invention of claim 7 is a building characterized by including such a ventilation device.

According to the ventilator of the present invention, the water vaporized by the indirect evaporative cooling unit is collected and reused for water supply to the indirect evaporative cooling unit, so that the water consumption can be reduced and the running cost can be suppressed. .

  Therefore, a ventilator having an indirect evaporative cooling function having performance required for installation in a house can be provided in a small size and at a low cost.

  And in a building equipped with such a ventilation device, air conditioning is performed while ventilating the outside air and the air in the building, so that a comfortable living space can be provided and air conditioning is performed using water. Power consumption can be reduced. Furthermore, water consumption can also be suppressed by collecting and reusing water.

  Embodiments of a ventilation device and a building according to the present invention will be described below with reference to the drawings.

<Configuration of ventilation device 1A of the first embodiment>
FIG. 1 is a configuration diagram illustrating an example of a ventilation device 1A according to the first embodiment. A ventilation device 1A according to the first embodiment includes an air supply fan 2, an exhaust fan 3, and an indirect evaporative cooling unit 4.

  The ventilator 1 </ b> A includes an outside air inlet 5 for sucking outside air OA (OutsideAir) from the outside, and a supply air outlet 6 for blowing supply air SA (SupplyAir) into the room. Furthermore, the ventilator 1A includes a return air inlet 7 for sucking in return air RA (ReturnAir) from the room and an exhaust outlet 8 for blowing exhaust EA (ExhaustAir) to the outdoors. In addition, each blower outlet and each suction inlet are connected with the room | chamber interior and the outdoors via the duct etc. which are not shown in figure, for example.

  The air supply fan 2 and the exhaust fan 3 are, for example, sirocco fans, and the air supply fan 2 has a flow of air toward the air supply outlet 6 in the air supply passage 9A communicating from the outside air inlet 5 to the air supply outlet 6. Generate. Further, the exhaust fan 3 generates an air flow toward the exhaust outlet 8 in the exhaust passage 10 </ b> A communicating from the return air inlet 7 to the exhaust outlet 8.

  The indirect vaporization cooling unit 4 includes an indirect vaporization element 11, a water supply / drainage device 12, a drain pan 13, and the like. The indirect vaporization element 11 is a product air flow through which the working air flow path 11a through which the working air WA cooled by the heat of vaporization of water passes and the product air PA in which sensible heat (temperature) exchange is performed between the working air WA. A path 11b is provided.

  The water supply / drainage device 12 includes a water supply valve 12a configured as, for example, an electromagnetic valve as a water supply device, and can control water supply to the indirect vaporization element 11. The drain pan 13 receives water supplied to the indirect vaporization element 11 by the water supply / drainage device 12. Furthermore, the water supply / drainage device 12 is provided with a drainage valve 12b constituted by, for example, an electromagnetic valve as a drainage device, and can control drainage of water from the drain pan 13.

  For example, the water supply / drainage device 12 has a configuration in which water is dropped or sprinkled from the upper side of the indirect vaporization element 11 and received by the drain pan 13. The water supply valve 12a of the water supply / drainage device 12 may be configured to be connected to a water pipe, or may be configured to use stored rainwater. The details of the water supply / drainage operation will be described later.

  The air supply passage 9 </ b> A communicates from the outside air inlet 5 to the air supply outlet 6 through the air supply fan 2 and the product air passage 11 b of the indirect vaporization element 11. The exhaust passage 10 </ b> A communicates from the return air suction port 7 to the exhaust outlet 8 through the working air passage 11 a of the indirect vaporization element 11 and the exhaust fan 3.

  The air supply passage 9 </ b> A includes an air supply flow rate adjustment damper 14 on the upstream side of the indirect evaporative cooling unit 4, for example. The supply air flow adjustment damper 14 constitutes a flow control means, and includes a damper that adjusts the air flow rate by opening and closing, and a motor that drives the damper. By adjusting the opening of the supply air flow adjustment damper 14, The flow rate of the air flowing through the path 9A is adjusted. Thereby, the flow volume of the product air PA which flows through the product air flow path 11b of the indirect vaporization element 11 which comprises the indirect vaporization cooling unit 4 is adjusted.

  The exhaust passage 10A includes an exhaust flow rate adjustment damper 15 on the upstream side of the indirect evaporative cooling unit 4, for example. The exhaust flow rate adjustment damper 15 constitutes a flow rate control means, includes a damper that adjusts the flow rate of air by opening and closing, and a motor that drives the damper. By adjusting the opening degree of the exhaust flow rate adjustment damper 15, the exhaust flow path 10A The flow rate of air flowing through is adjusted. Thereby, the flow volume of the working air WA which flows through the working air flow path 11a of the indirect vaporization element 11 which comprises the indirect vaporization cooling unit 4 is adjusted.

  Further, the air supply passage 9A includes an air purification filter 16 as an air purification device on the upstream side of the indirect evaporative cooling unit 4, for example. By providing the air purifying filter 16 in the air supply passage 9A, the air supply SA from which dust or the like has been removed from the outside air OA is supplied indoors. Further, by disposing the air cleaning filter 16 on the upstream side of the indirect vaporization cooling unit 4, entry of dust or the like into the indirect vaporization element 11 is prevented.

  Furthermore, the supply air flow path 9A is provided with a temperature sensor 17 at the supply air outlet 6 so that the supply air temperature is detected.

<Configuration of indirect vaporization element>
FIG. 2 is an explanatory view showing an outline of the indirect vaporization element 11. FIG. 2 (a) is an overall configuration of the indirect vaporization element 11, FIG. 2 (b) is a main configuration of the indirect vaporization element 11, and FIG. The cooling principle is shown.

  As shown in FIG. 2B, the indirect vaporization element 11 includes a dry cell 21 having a plurality of first flow paths 21b partitioned by a partition 21a, and a plurality of second flow paths 22b partitioned by a partition 22a. A wet cell 22 having a partition wall and a dry cell 21 and a partition wall 23 that partitions the wet cell 22.

  The dry cell 21 and the wet cell 22 are stacked with the partition wall 23 interposed therebetween so that the first channel 21b and the second channel 22b are orthogonal to each other.

  As shown in FIG. 2C, the partition wall 23 includes a moisture-proof film 23a formed of a polyethylene film or the like, and a wet layer 23b formed of pulp or the like. The moisture-proof film 23a faces the dry cell 21, and the wet layer 23 b faces the wet cell 22.

  Further, as shown in FIG. 2B, the partition wall 23 is formed with a vent hole 23c that allows some of the first flow paths 21b and the second flow paths 22b to communicate with each other. Further, as shown in FIG. 2A, a closing portion 24 is formed at the outlet of the first flow path 21b in which the vent hole 23c is formed, and is configured so that air does not pass through.

  Thereby, in the indirect vaporization element 11, the working air flow path 11a is connected to the first flow path 21b, the vent hole 23c, and the second flow path 22b from the inlet of the first flow path 21b in which the vent hole 23c is formed. And communicates with the outlet of the second flow path 22b. In addition, the product air channel 11b communicates from the inlet of the first channel 21b where the vent hole 23c is not formed to the outlet of the first channel 21b through the first channel 21b.

  The outline of the cooling principle by the indirect vaporization element 11 will be described with reference to FIG. Here, the working air WA and the product air PA flow in directions orthogonal to each other. In FIG. 2C, the working air WA and the product air PA flow in parallel.

  The wetting layer 23b facing the working air channel 11a is supplied with water by the water supply / drainage device 12 shown in FIG. Thereby, moisture is vaporized by the temperature difference between the working air WA and the wet layer 23b passing through the working air flow path 11a, and the working air WA is cooled.

  When the working air WA is cooled, the product air PA passing through the product air channel 11b partitioned by the working air channel 11a and the partition wall 23 is cooled by receiving cold heat through the partition wall 23.

  Here, since the moisture-proof film 23a constituting the partition wall 23 does not pass moisture, the absolute humidity does not change even if the product air PA passes through the product air channel 11b. Note that the working air WA becomes highly humid when it passes through the working air channel 11a.

  As an example, when the input temperature of the product air PA and the working air WA is 30 ° C., the absolute humidity is 10 g / kg (DA: dry air), and the relative humidity is about 40% RH, the outlet temperature of the product air PA is 20 ° C. Go down. The relative humidity increases to about 70% RH because the temperature decreases, but the absolute humidity is 10 g / kg (DA) and does not change.

  Further, the outlet temperature of the working air WA is lowered to 23 ° C. However, the absolute humidity increases to 16 g / kg (DA).

<Cooling principle of indirect vaporization element>
The cooling principle of the indirect vaporization element 11 can be expressed as follows using the temperature Td of the product air PA, the absolute humidity Xd, the air volume Gd, the temperature Tw of the working air WA, the absolute humidity Xw, the air volume Gw, and other parameters.

  (1) From the law of conservation of energy

  (2) From the law of conservation of mass

(3) Relationship between the flow rate of the working air WA and the outlet temperature of the product air PA From the above formula, the relationship between the flow rate of the working air WA in the indirect vaporization element 11 and the outlet temperature of the product air PA is obtained and shown in the graph of FIG. .

FIG. 3 is a graph showing the relationship between the flow rate of the working air WA and the outlet temperature of the product air PA. The conditions of the working air WA and the product air PA input to the indirect vaporization element 11 are: absolute humidity 5.26 g / kg (DA : Dry air), inlet temperature fixed at 30 ° C., and flow rate of product air PA fixed at 50 m ³ / hr.

  From FIG. 3, it can be seen that the outlet temperature of the product air PA decreases as the flow rate of the working air WA increases. In addition, although the air cooled by the indirect vaporization element 11 has temperature distribution, the temperature data of each example are described by the minimum temperature.

(4) Relationship between the flow rate of the product air PA and the outlet temperature of the product air PA From the above-described equation, the relationship between the flow rate of the product air PA in the indirect vaporization element 11 and the outlet temperature of the product air PA is obtained and shown in the graph of FIG. .

FIG. 4 is a graph showing the relationship between the flow rate of the product air PA and the outlet temperature of the product air PA. The working air WA and the product air PA input to the indirect vaporization element 11 have an absolute humidity of 5.26 g / kg (DA ), The inlet temperature is fixed at 30 ° C., and the flow rate of the working air WA is fixed at 50 m ³ / hr.

  FIG. 4 shows that the outlet temperature of the product air PA decreases as the flow rate of the product air PA decreases.

(5) Relationship between working air WA and product air PA inlet temperature and product air PA outlet temperature From the above formula, the working air WA and product air PA inlet temperature and product air PA outlet temperature in the indirect vaporization element 11 The relationship is determined and shown in the graph of FIG.

FIG. 5 is a graph showing the relationship between the inlet temperature of the working air WA and the product air PA and the outlet temperature of the product air PA. The conditions of the working air WA and the product air PA input to the indirect vaporization element 11 are absolute humidity 5. 26 g / kg (DA), and the flow rate is fixed at 50 m ³ / hr.

  FIG. 5 shows that the outlet temperature of the product air PA increases as the inlet temperature of the working air WA and the product air PA increases.

(6) Relationship between inlet temperature of working air WA and product air PA and consumption of water From the above formula, the relationship between the inlet temperature of working air WA and product air PA in indirect vaporization element 11 and the consumption of water is obtained. This is shown in the graph of FIG.

FIG. 6 is a graph showing the relationship between the inlet temperature of the working air WA and the product air PA and the water consumption. The conditions of the working air WA and the product air PA input to the indirect vaporization element 11 are: absolute humidity 5.26 g / kg (DA), the flow rate is fixed at 50 m ³ / hr.

  From FIG. 6, it can be seen that the higher the inlet temperature of the working air WA and the product air PA, the greater the consumption of water used for cooling.

  5 and 6, it can be seen that if the inlet temperature of the working air WA and the product air PA is lowered, the outlet temperature of the product air PA is lowered and the consumption of water is reduced.

(7) Relationship between Working Air WA and Product Air PA Inlet Humidity and Product Air PA Outlet Temperature From the above formula, the working air WA and product air PA inlet humidity and the product air PA outlet temperature in the indirect vaporization element 11 The relationship is determined and shown in the graph of FIG.

FIG. 7 is a graph showing the relationship between the inlet humidity of the working air WA and the product air PA and the outlet temperature of the product air PA. The conditions of the working air WA and the product air PA input to the indirect vaporization element 11 are a temperature of 30 ° C. The flow rate is fixed at 50 m ³ / hr.

  FIG. 7 shows that the outlet temperature of the product air PA decreases as the inlet humidity of the working air WA and the product air PA decreases.

  From the above, in the indirect vaporization element 11, the flow rate of the working air WA, the flow rate of the product air PA, the inlet temperature of the working air WA, the inlet temperature of the product air PA, the inlet humidity of the working air WA, the inlet humidity of the product air PA It can be seen that the outlet temperature of the product air PA can be controlled by controlling the above.

<Operation of Ventilator 1A of First Embodiment>
Next, the operation of the ventilation device 1A according to the first embodiment will be described with reference to FIG. In the ventilator 1A, when the air supply fan 2 is driven, an air flow toward the air supply outlet 6 is generated in the air supply passage 9A. As a result, the outside air OA is sucked from the outside air suction port 5, passes through the air purification filter 16 and the product air flow path 11 b of the indirect vaporization element 11, and is supplied into the room as the supply air SA from the supply air outlet 6.

  Further, when the exhaust fan 3 is driven, an air flow toward the exhaust outlet 8 is generated in the exhaust passage 10A. As a result, the return air RA from the room is sucked in from the return air suction port 7, passes through the working air flow path 11 a of the indirect vaporization element 11, and is discharged to the outside as the exhaust air EA from the exhaust air outlet 8.

  Therefore, in the ventilator 1A, the outside air OA becomes the product air PA, and the return air RA becomes the working air WA.

  Further, the air supply valve 12a of the water supply / drainage device 12 is opened, and water is supplied to the indirect vaporization element 11, so that the wet layer 23b shown in FIG.

  As described in FIG. 2, in the indirect vaporization element 11, the working air WA passing through the working air flow path 11a is cooled by the heat of vaporization of water, and when the working air WA is cooled, the product passing through the product air flow path 11b. The air PA is cooled by receiving the cold heat of the working air WA.

  Since no humidity movement occurs between the working air flow path 11a and the product air flow path 11b, the humidity (absolute humidity) of the outside air OA that has passed through the product air flow path 11b of the indirect vaporization element 11 does not change. The temperature goes down.

  Therefore, the outside air OA that has passed through the product air flow path 11b of the indirect vaporization element 11 is blown out as the supply air SA from the supply air outlet 6 so that the indoor temperature can be lowered.

  Since the return air RA that has passed through the working air flow path 11a of the indirect vaporization element 11 becomes high-humidity air, it is discharged from the exhaust outlet 8 as exhaust EA.

  In the ventilator 1 </ b> A, the flow rate of the product air PA passing through the product air flow path 11 b of the indirect vaporization element 11 is adjusted by the opening degree of the supply air flow rate adjustment damper 14. Further, the flow rate of the working air WA passing through the working air flow path 11a of the indirect vaporization element 11 is adjusted by the opening degree of the exhaust flow rate adjustment damper 15.

  As a result, either the supply air flow adjustment damper 14 or the exhaust flow adjustment damper 15 is operated to adjust the flow rate of the product air PA or the flow rate of the working air WA, as described in FIGS. 3 and 4. The outlet temperature of the product air PA in the indirect vaporization element 11 is controlled. Therefore, the supply air temperature from the supply air outlet 6 is controlled.

  That is, when the opening degree of the exhaust flow adjustment damper 15 is controlled to increase the flow rate of the working air WA, the outlet temperature of the product air PA in the indirect vaporization element 11 is lowered. Therefore, the supply air temperature from the supply air outlet 6 can be lowered.

  Further, when the opening amount of the exhaust flow adjustment damper 15 is controlled to reduce the flow rate of the working air WA, the outlet temperature of the product air PA in the indirect vaporization element 11 rises. Therefore, the supply air temperature from the supply air outlet 6 can be raised.

  Further, when the opening of the supply air flow adjustment damper 14 is controlled to increase the flow rate of the product air PA, the outlet temperature of the product air PA in the indirect vaporization element 11 increases. Therefore, the supply air temperature from the supply air outlet 6 can be raised.

  Moreover, if the flow rate of the product air PA is decreased by controlling the opening degree of the supply air flow adjustment damper 14, the outlet temperature of the product air PA in the indirect vaporization element 11 is lowered. Therefore, the supply air temperature from the supply air outlet 6 can be lowered.

  In this way, the supply air temperature can be controlled by adjusting the flow rate of either the product air PA or the working air WA, and therefore the configuration including either the supply air flow rate adjustment damper 14 or the exhaust flow rate adjustment damper 15 But it ’s okay.

  The outlet temperature of the product air PA in the indirect vaporization element 11 can also be adjusted by operating both the supply air flow adjustment damper 14 and the exhaust flow adjustment damper 15 to adjust the flow rate of the product air PA and the flow rate of the working air WA. The supply air temperature from the supply air outlet 6 is controlled.

  Further, the flow rate of the product air PA can be adjusted by changing the rotational speed of the air supply fan 2, and similarly, the working air can be controlled by changing the rotational speed of the exhaust fan 3 to control the air volume. The flow rate of WA can be adjusted.

  Therefore, the outlet temperature of the product air PA in the indirect vaporization element 11 is controlled by controlling the air volume of either the air supply fan 2 and the exhaust fan 3 or both the air supply fan 2 and the exhaust fan 3. The supply air temperature from the blower outlet 6 is controlled.

  Even if the control of the opening degree of at least one of the supply air flow adjustment damper 14 and the exhaust flow adjustment damper 15 and the control of the air volume of at least one of the supply air fan 2 and the exhaust fan 3 are combined, the product in the indirect vaporization element 11 The outlet temperature of the air PA is controlled, and the supply air temperature from the supply air outlet 6 is controlled.

  The temperature control described above can be performed manually with a setting switch described later, or can be automatically adjusted according to the temperature using the temperature sensor 17 or the like.

  In addition, indoor temperature can be lowered | hung by using the ventilation apparatus 1A in summer. Therefore, the temperature of the return air RA is also low. As described in FIG. 5, when the input temperature of the working air WA is low, the outlet temperature of the product air PA is lowered. Therefore, the outlet temperature of the product air PA is efficiently used by using the return air RA as the working air WA. The supply air temperature can be controlled by lowering the value.

  By using the return air RA, it is possible to cool and take in the outside air while exhausting indoor air to the outdoors, and the ventilator 1A has a function of performing cooling while performing ventilation.

  Also, according to the Building Standards Law, it is necessary to install ventilation equipment that can replace the air in the house at a predetermined time, and use a ventilator that can forcibly ventilate using a fan for a predetermined time. The room air can be changed.

  The ventilator 1A of this example has a function of performing cooling while performing ventilation. Therefore, by adjusting the flow rate of the return air RA and the flow rate of the supply air SA without providing another ventilator, the ventilation device 1A can be used in a predetermined time. Ventilation operation that replaces the air in the room is possible, and it can also be used as a 24-hour ventilator. For this reason, in the ventilator 1A, the temperature is controlled by the flow rate of the working air WA and the flow rate of the product air PA. Therefore, the ventilation operation and cooling are performed so that a desired cooling temperature can be obtained and a predetermined ventilation amount can be secured. Control that links the operations is performed.

  The 24-hour ventilation function is a function of constantly or intermittently ventilating continuously or intermittently so as to satisfy a predetermined number of ventilations (for example, 0.5 times / hour) in the ventilation target area in the building. This may satisfy the predetermined number of ventilations only with the ventilator 1, or may satisfy the predetermined number of ventilations by combining the ventilation amounts of other ventilation devices. Further, in order to reduce the predetermined ventilation frequency in winter, etc., it is possible to detect the switch of the operating means and the temperature so as to be switched manually or automatically so that the 24-hour ventilation air volume can be reduced.

<Configuration of Ventilator 1B of Second Embodiment>
FIG. 8 is a configuration diagram illustrating an example of a ventilation device 1B according to the second embodiment. The ventilator 1 </ b> B according to the second embodiment uses outside air OA as the working air WA of the indirect vaporization element 11 constituting the indirect vaporization cooling unit 4. In the ventilator 1B of the second embodiment, the same components as those in the ventilator 1A of the first embodiment will be described with the same numbers.

  The ventilator 1 </ b> B includes an air supply passage 9 </ b> B that communicates from the outside air inlet 5 through the air supply fan 2 and the product air passage 11 b of the indirect vaporization element 11 to the air supply outlet 6.

  Further, the ventilation device 1B branches from the supply air flow path 9B downstream of the supply air fan 2, passes through the working air flow path 11a of the indirect vaporization element 11 and the exhaust fan 3, and communicates with the exhaust air outlet 8. An exhaust passage 10 </ b> B and a second exhaust passage 10 </ b> C that passes through the exhaust fan 3 from the return air inlet 7 and communicates with the exhaust outlet 8 are provided. In addition, the part shown with the broken line of 10C of 2nd exhaust flow paths is formed along the side wall of a case, for example so that it may become independent of the air supply flow path 9B.

  The supply air flow path 9B includes a supply air flow rate adjustment damper 14 on the downstream side of the branch position with the first exhaust flow path 10B, for example, on the upstream side of the indirect evaporative cooling unit 4. The first exhaust flow path 10B includes an exhaust flow rate adjustment damper 15 on the downstream side of the branch position with the air supply flow path 9B, for example, on the upstream side of the indirect evaporative cooling unit 4.

  By adjusting the opening degree of the supply air flow adjustment damper 14, the flow rate of the air flowing through the supply air flow path 9B is adjusted. Thereby, the flow volume of the product air PA which flows through the product air flow path 11b of the indirect vaporization element 11 is adjusted.

  Further, by adjusting the opening degree of the exhaust flow rate adjustment damper 15, the flow rate of the air flowing through the first exhaust flow path 10B is adjusted. Thereby, the flow volume of the working air WA which flows through the working air flow path 11a of the indirect vaporization element 11 is adjusted.

  In addition, the air supply flow path 9B is provided with the air purifying filter 16 on the upstream side from a branch position with the first exhaust flow path 10B, for example. Further, the air supply passage 9 </ b> B includes a temperature sensor 17 at the air supply outlet 6.

<Operation of Ventilator 1B of Second Embodiment>
Next, the operation of the ventilator 1B of the second embodiment will be described with reference to FIG. In the ventilation device 1B, when the air supply fan 2 is driven, an air flow toward the air supply outlet 6 is generated in the air supply passage 9B. As a result, the outside air OA is sucked from the outside air suction port 5, passes through the product air flow path 11 b of the indirect vaporization element 11, and is supplied indoors as the supply air SA from the supply air outlet 6.

  Further, when the exhaust fan 3 is driven, an air flow toward the exhaust outlet 8 is generated in the first exhaust passage 10B and the second exhaust passage 10C. Thereby, a part of the outside air OA passes through the working air passage 11a of the indirect vaporization element 11 by the first exhaust passage 10B, and is discharged to the outside from the exhaust outlet 8 as the exhaust EA. Further, the return air RA from the room is sucked in from the return air inlet 7 by the second exhaust passage 10C, and is discharged to the outdoors as the exhaust EA from the exhaust outlet 8.

  Therefore, in the ventilation device 1B, the outside air OA becomes the product air PA and the working air WA.

  As described above, in the indirect vaporization element 11, the working air WA is cooled by the heat of vaporization of water, and the product air PA is cooled by the cold heat of the working air WA. The temperature of the OA decreases without changing the humidity (absolute humidity).

  Therefore, the outside air OA that has passed through the product air flow path 11b of the indirect vaporization element 11 is blown out as the supply air SA from the supply air outlet 6 so that the indoor temperature can be lowered.

  Since the outside air OA that has passed through the working air flow path 11a of the indirect vaporization element 11 becomes high-humidity air, it is discharged from the exhaust outlet 8 as exhaust EA.

  In the ventilation device 1B, similarly to the ventilation device 1A of the first embodiment, the flow rate of the product air PA passing through the product air flow path 11b of the indirect vaporization element 11 is adjusted by the opening degree of the supply air flow rate adjustment damper 14. The Further, the flow rate of the working air WA passing through the working air flow path 11a of the indirect vaporization element 11 is adjusted by the opening degree of the exhaust flow rate adjustment damper 15.

  Thus, either or both of the supply air flow adjustment damper 14 and the exhaust flow adjustment damper 15 are operated to adjust the flow rate of the product air PA, the flow rate of the working air WA, or both of the flow rates of FIG. As described with reference to FIG. 4, the outlet temperature of the product air PA in the indirect vaporization element 11 is controlled. Therefore, the supply air temperature from the supply air outlet 6 is controlled.

  Further, the flow rate of the product air PA can be adjusted by changing the rotational speed of the air supply fan 2, and similarly, the working air can be controlled by changing the rotational speed of the exhaust fan 3 to control the air volume. The flow rate of WA can be adjusted.

  Therefore, the outlet temperature of the product air PA in the indirect vaporization element 11 is controlled by controlling the air volume of either the air supply fan 2 and the exhaust fan 3 or both the air supply fan 2 and the exhaust fan 3. The supply air temperature from the blower outlet 6 is controlled.

  Even if the control of the opening degree of at least one of the supply air flow adjustment damper 14 and the exhaust flow adjustment damper 15 and the control of the air volume of at least one of the supply air fan 2 and the exhaust fan 3 are combined, the product in the indirect vaporization element 11 The outlet temperature of the air PA is controlled, and the supply air temperature from the supply air outlet 6 is controlled.

  Since the ventilator 1B has a function of exhausting the return air RA to the outside, it is possible to cool and take in the outside air while exhausting indoor air to the outside, and the ventilator 1B has a function of cooling while ventilating. Will have.

  Then, by adjusting the flow rate of the return air RA and the flow rate of the supply air SA, it is possible to perform a ventilation operation in which the room air is replaced in a predetermined time. For this reason, in the ventilator 1B, since the temperature is controlled by the flow rate of the working air WA and the flow rate of the product air PA, the ventilation operation and the cooling are performed so that a desired cooling temperature can be obtained and a predetermined ventilation amount can be secured. Control that links the operations is performed.

<Configuration of ventilation device 1C of the third embodiment>
FIG. 9 is a configuration diagram illustrating an example of a ventilator 1C according to the third embodiment. The ventilator 1 </ b> C of the third embodiment includes an air supply passage that bypasses the indirect evaporative cooling unit 4. In the ventilation device 1C of the third embodiment, the same components as those in the ventilation device 1A of the first embodiment will be described with the same numbers.

  The ventilator 1 </ b> C includes an air supply passage 9 </ b> C that communicates from the outside air inlet 5 through the air supply fan 2 and the product air passage 11 b of the indirect vaporization element 11 to the air supply outlet 6. The exhaust passage 10A has the same configuration as that of the ventilation device 1A of the first embodiment.

  Further, the ventilator 1 </ b> C includes a bypass flow path 10 </ b> D that branches from the air supply flow path 9 </ b> C upstream of the indirect vaporization cooling unit 4, bypasses the indirect vaporization cooling unit 4 and communicates with the air supply outlet 6.

  The bypass flow path 10 </ b> D includes an air supply flow rate adjustment damper 18. The supply air flow adjustment damper 18 constitutes a flow control means, and includes a damper that adjusts the air flow rate by opening and closing, and a motor that drives the damper. By adjusting the opening of the supply air flow adjustment damper 18, a bypass flow is provided. The flow rate of the air flowing through the path 10D is adjusted. Thereby, the flow rate of the air supplied to the supply air outlet 6 by bypassing the indirect vaporization cooling unit 4 is adjusted.

  The air supply channel 9C includes an air purifying filter 16 on the upstream side of a branch position with the bypass channel 10D, for example.

  In the ventilator 1 </ b> C, the water supply valve 12 b of the water supply / drainage device 12 is disposed below the indirect evaporative cooling unit 4. For example, it is good also as a structure which supplies water in the state attached to the water stored in the drain pan 13 with the indirect vaporization element 11.

<Operation of Ventilator 1C of Third Embodiment>
Next, the operation of the ventilator 1C of the third embodiment will be described with reference to FIG. In the ventilator 1C, when the air supply fan 2 is driven, an air flow toward the air supply outlet 6 is generated in the air supply passage 9C. As a result, the outside air OA is sucked from the outside air suction port 5, passes through the product air flow path 11 b of the indirect vaporization element 11, and is supplied indoors as the supply air SA from the supply air outlet 6.

  Further, when the exhaust fan 3 is driven, an air flow toward the exhaust outlet 8 is generated in the exhaust passage 10A. As a result, the return air RA from the room is sucked in from the return air suction port 7, passes through the working air flow path 11 a of the indirect vaporization element 11, and is discharged to the outside as the exhaust air EA from the exhaust air outlet 8.

  Therefore, in the ventilator 1C, the outside air OA becomes the product air PA, and the return air RA becomes the working air WA.

  As described above, in the indirect vaporization element 11, the working air WA is cooled by the heat of vaporization of water, and the product air PA is cooled by the cold air of the working air WA, so the outside air OA that has passed through the product air flow path 11b. The temperature drops without changing the humidity (absolute humidity).

  Therefore, the outside air OA that has passed through the product air flow path 11b of the indirect vaporization element 11 is blown out as the supply air SA from the supply air outlet 6 so that the indoor temperature can be lowered.

  In the ventilator 1C, the flow rate of the air flowing through the bypass passage 10D is adjusted by adjusting the opening of the supply air flow adjustment damper 18.

  Thereby, the flow rate of the air supplied to the supply air outlet 6 by bypassing the indirect vaporization cooling unit 4 is adjusted.

  Therefore, by operating the air supply flow rate adjustment damper 18 and adjusting the flow rate of the air flowing through the bypass channel 10D, the air cooled through the indirect evaporative cooling unit 4 and the indirect evaporative cooling unit 4 are bypassed. The mixing ratio of the uncooled air is controlled, and the supply air temperature from the supply air outlet 6 is controlled.

  By using the return air RA, the ventilator 1C can cool and take in outside air while exhausting indoor air to the outside, and the ventilator 1C has a function of cooling while ventilating. Become.

  Then, by adjusting the flow rate of the return air RA and the flow rate of the supply air SA, it is possible to perform a ventilation operation in which the room air is replaced in a predetermined time. For this reason, in the ventilator 1C, since temperature control is performed with the flow rate of the working air WA and the flow rate of the product air PA, the ventilation operation and the cooling are performed so that a desired cooling temperature can be obtained and a predetermined ventilation amount can be secured. Control that links the operations is performed.

<Configuration of ventilation device 1D of the fourth embodiment>
FIG. 10 is a configuration diagram illustrating an example of a ventilator 1D according to the fourth embodiment. A ventilator 1D according to the fourth embodiment includes a heat exchange unit 31 in addition to the air supply fan 2, the exhaust fan 3, and the indirect evaporative cooling unit 4. In the ventilator 1D of the fourth embodiment, the same components as those of the ventilator 1A of the first embodiment will be described with the same numbers.

  The heat exchange unit 31 includes a heat exchange element 32 and a filter (not shown). In the heat exchange element 32, the heat exchange element material in which the first flow path 32a is formed and the heat exchange element material in which the second flow path 32b is formed are divided into the first flow path 32a and the second flow path 32b. Is a cross-flow heat exchanger that is stacked in a direction orthogonal to each other. The first flow path 32a and the second flow path 32b are partitioned by a partition (not shown), and sensible heat exchange is performed between the air supplied to the first flow path 32a and the second flow path 32b.

  The supply air flow path 9D is a product air of the indirect vaporization element 11 constituting the indirect vaporization cooling unit 4 and the first flow path 32a of the heat exchange element 32 constituting the heat exchange unit 31 from the external air suction port 5. It passes through the flow path 11 b and communicates with the air supply outlet 6.

  The first exhaust passage 10 </ b> E communicates from the return air suction port 7 to the exhaust outlet 8 through the working air passage 11 a of the indirect vaporization element 11 and the exhaust fan 3. Further, the second exhaust flow path 10 </ b> F communicates from the return air suction port 7 to the exhaust air outlet 8 through the second flow path 32 b of the heat exchange element 32 and the exhaust fan 3.

  The air supply passage 9D includes, for example, an air supply flow rate adjustment damper 14 on the upstream side of the heat exchange unit 31. The flow rate of the air flowing through the supply air flow path 9D is adjusted by adjusting the opening degree of the supply air flow adjustment damper 14. Thereby, the flow volume of the product air PA which flows through the product air flow path 11b of the indirect vaporization element 11 is adjusted.

  The first exhaust passage 10E includes an exhaust flow rate adjustment damper 15 on the upstream side of the indirect evaporative cooling unit 4, for example. By adjusting the opening degree of the exhaust flow rate adjustment damper 15, the flow rate of the air flowing through the first exhaust flow path 10E is adjusted. Thereby, the flow volume of the working air WA which flows through the working air flow path 11a of the indirect vaporization element 11 is adjusted.

  In addition, the air supply passage 9D includes an air purification filter 16 on the upstream side of the heat exchange unit 31, for example. By disposing the air cleaning filter 16 on the upstream side of the heat exchange unit 31, entry of dust or the like into the heat exchange element 32 and the indirect vaporization element 11 is prevented.

  Further, the supply air flow path 9D includes a temperature sensor 17 at the supply air outlet 6 so that the supply air temperature is detected.

<Operation of Ventilator 1D of Fourth Embodiment>
Next, the operation of the ventilator 1D of the fourth embodiment will be described with reference to FIG. In the ventilation device 1D, when the air supply fan 2 is driven, an air flow toward the air supply outlet 6 is generated in the air supply passage 9D. As a result, the outside air OA is sucked from the outside air suction port 5, passes through the air purification filter 16, the first flow path 32 a of the heat exchange element 32, and the product air flow path 11 b of the indirect vaporization element 11, and from the supply air outlet 6. The air supply SA is supplied indoors.

  Further, when the exhaust fan 3 is driven, an air flow toward the exhaust outlet 8 is generated in the first exhaust passage 10E and the second exhaust passage 10F. As a result, the return air RA from the room is sucked in from the return air suction port 7, passes through the working air flow path 11 a of the indirect vaporization element 11, and is discharged to the outside as the exhaust air EA from the exhaust air outlet 8. Further, a part of the return air RA passes through the second flow path 32b of the heat exchange element 32, and is discharged to the outside as the exhaust EA from the exhaust outlet 8.

  Therefore, in the ventilator 1D, the outside air OA becomes the product air PA, and the return air RA becomes the working air WA.

  In the heat exchange element 32, heat exchange is performed between the outside air OA passing through the first flow path 32a and the return air RA passing through the second flow path 32b. By using the ventilator 1D in summer, the indoor temperature is lowered, and the temperature of the return air RA is lower than the temperature of the outside air OA.

  Therefore, the temperature of the outside air OA that has passed through the first flow path 32a of the heat exchange element 32 decreases, and the temperature of the return air RA that has passed through the second flow path 32b increases.

  As described above, in the indirect vaporization element 11, the working air WA is cooled by the heat of vaporization of water, and the product air PA is cooled by the cold air of the working air WA, so the outside air OA that has passed through the product air flow path 11b. The temperature drops without changing the humidity (absolute humidity).

  Therefore, the outside air OA that has passed through the product air flow path 11b of the indirect vaporization element 11 is blown out as the supply air SA from the supply air outlet 6 so that the indoor temperature can be lowered.

  Here, the temperature of the outside air OA passing through the product air flow path 11 b of the indirect vaporization element 11 is lowered by the heat exchange unit 31 in the previous stage. Accordingly, as described with reference to FIG. 5, if the input temperature of the product air PA is low, the outlet temperature of the product air PA is lowered. By reducing the input temperature of the PA, the outlet temperature of the product air PA can be efficiently lowered to control the supply air temperature.

  Further, as described with reference to FIG. 5, when the working air WA input temperature is low, the outlet temperature of the product air PA is lowered. Therefore, by using the return air RA as the working air WA, the product air PA can be efficiently used. The outlet temperature can be lowered to control the supply air temperature.

  Since the return air RA that has passed through the working air flow path 11a of the indirect vaporization element 11 becomes high-humidity air, it is discharged from the exhaust outlet 8 as exhaust EA. Moreover, since the temperature of the return air RA that has passed through the second flow path 32b of the heat exchange element 32 rises, it is discharged from the exhaust outlet 8 as exhaust EA.

  In the ventilator 1 </ b> D, the flow rate of the product air PA passing through the product air flow path 11 b of the indirect vaporization element 11 is adjusted by the opening degree of the supply air flow rate adjustment damper 14. Further, the flow rate of the working air WA passing through the working air flow path 11a of the indirect vaporization element 11 is adjusted by the opening degree of the exhaust flow rate adjustment damper 15.

  Thereby, even in the ventilator 1D including the heat exchange unit 31, either the supply air flow rate adjustment damper 14 or the exhaust flow rate adjustment damper 15 is operated to adjust the flow rate of the product air PA or the flow rate of the working air WA. Thus, as described in FIGS. 3 and 4, the outlet temperature of the product air PA in the indirect vaporization element 11 is controlled. Therefore, the supply air temperature from the supply air outlet 6 is controlled.

  For example, when the flow rate of the working air WA is increased, the outlet temperature of the product air PA in the indirect vaporization element 11 is reduced, so that the supply air temperature from the supply air outlet 6 can be lowered.

  Further, when the flow rate of the working air WA is decreased, the outlet temperature of the product air PA in the indirect vaporization element 11 is increased, so that the supply air temperature from the supply air outlet 6 can be increased.

  Since the supply air temperature can be controlled by adjusting the flow rate of either the product air PA or the working air WA, a configuration including either the supply air flow rate adjustment damper 14 or the exhaust flow rate adjustment damper 15 may be adopted. .

  Further, by operating both the supply air flow adjustment damper 14 and the exhaust air flow adjustment damper 15 to adjust the flow rate of the product air PA and the flow rate of the working air WA, the outlet temperature of the product air PA in the indirect vaporization element 11 is increased. The supply air temperature from the supply air outlet 6 is controlled.

  Further, the flow rate of the product air PA can be adjusted by changing the rotational speed of the air supply fan 2, and similarly, the working air can be controlled by changing the rotational speed of the exhaust fan 3 to control the air volume. The flow rate of WA can be adjusted.

  Therefore, the outlet temperature of the product air PA in the indirect vaporization element 11 is controlled by controlling the air volume of either the air supply fan 2 and the exhaust fan 3 or both the air supply fan 2 and the exhaust fan 3. The supply air temperature from the blower outlet 6 is controlled.

  Even if the control of the opening degree of at least one of the supply air flow adjustment damper 14 and the exhaust flow adjustment damper 15 and the control of the air volume of at least one of the supply air fan 2 and the exhaust fan 3 are combined, the product in the indirect vaporization element 11 The outlet temperature of the air PA is controlled, and the supply air temperature from the supply air outlet 6 is controlled.

  FIG. 10B shows a comparative example of a configuration including the heat exchange unit 31 and a configuration not including the heat exchange unit 31. First, in a configuration not including the heat exchange unit 31, the outside air OA at 40 ° C. 5, it can be seen from the graph shown in FIG. 5 that a supply air SA of 21 ° C. can be generated from the graph shown in FIG. 5, but at the same time, 0.48 kg / hr of water is consumed as shown in FIG. .

  Therefore, the heat exchange unit 31 that reduces the temperature of the taken-in outside air OA is incorporated. The heat exchange element 32 constituting the heat exchange unit 31 generally has a heat exchange rate of about 70%. When heat is exchanged between the outside air OA at 40 ° C. and the return air RA (room air) at 25 ° C., Air of 29.5 ° C. can be supplied to the indirect evaporative cooling unit 4 with a heat exchange efficiency of 70%.

  It was found that when the product air PA and the working air WA of the indirect vaporization element 11 are supplied under these conditions, the supply air SA at 17 ° C. can be generated and the water consumption can be suppressed to 0.32 kg / hr.

  Thus, the ventilation device 1D includes the heat exchange unit 31, and by using the return air RA in the heat exchange unit 31 and the indirect evaporative cooling unit 4, the cooling capacity is improved and the consumption of water can be suppressed. . Further, by using the return air RA, it is possible to cool and take in the outside air while exhausting indoor air to the outdoors, and the ventilator 1D has a function of performing cooling while performing ventilation.

  Then, by adjusting the flow rate of the return air RA and the flow rate of the supply air SA, it is possible to perform a ventilation operation in which the room air is replaced in a predetermined time. For this reason, in the ventilator 1D, the temperature is controlled by the flow rate of the working air WA and the flow rate of the product air PA. Therefore, the ventilation operation and cooling are performed so that a desired cooling temperature can be obtained and a predetermined ventilation amount can be secured. Control that links the operations is performed.

<Configuration of Ventilator 1E of Fifth Embodiment>
FIG. 11 is a configuration diagram illustrating an example of a ventilation device 1E according to the fifth embodiment. The ventilator 1E according to the fifth embodiment uses the outside air OA as the working air WA of the indirect vaporization element 11 constituting the indirect vaporization cooling unit 4 in the ventilator 1E including the heat exchange unit 31. In addition, in the ventilator 1E of 5th Embodiment, the same number is attached | subjected and demonstrated about the same component as the ventilator 1D of 4th Embodiment.

  The ventilation device 1E is a supply airflow that communicates from the outside air inlet 5 to the supply air outlet 6 through the supply air fan 2, the first flow path 32a of the heat exchange element 32, and the product air flow path 11b of the indirect vaporization element 11. Road 9E is provided.

  Further, the ventilation device 1E branches from the supply air flow path 9E downstream from the heat exchange unit 31, passes through the working air flow path 11a of the indirect vaporization element 11 and the exhaust fan 3, and communicates with the exhaust air outlet 8. The exhaust passage 10 </ b> G and the second exhaust passage 10 </ b> H that communicates from the return air inlet 7 through the second passage 32 b of the heat exchange element 32 and the exhaust fan 3 to the exhaust outlet 8.

  The supply air flow path 9E includes an intake air flow rate adjustment damper 14 on the upstream side of the heat exchange unit 31, for example. The first exhaust passage 10G includes an exhaust flow rate adjustment damper 15 on the downstream side of the branch position with the supply air passage 9E, for example, on the upstream side of the indirect evaporative cooling unit 4.

  By adjusting the opening degree of the supply air flow adjustment damper 14, the flow rate of the air flowing through the supply air flow path 9E is adjusted. Thereby, the flow volume of the product air PA which flows through the product air flow path 11b of the indirect vaporization element 11 is adjusted.

  Further, the flow rate of the air flowing through the first exhaust flow path 10G is adjusted by adjusting the opening degree of the exhaust flow rate adjustment damper 15. Thereby, the flow volume of the working air WA which flows through the working air flow path 11a of the indirect vaporization element 11 is adjusted.

  In addition, the air supply flow path 9E is provided with the air purifying filter 16 on the upstream side of the heat exchange unit 31, for example. Further, the air supply passage 9E includes a temperature sensor 17 at the air supply outlet 6.

<Operation of Ventilator 1E of Fifth Embodiment>
Next, the operation of the ventilator 1E according to the fifth embodiment will be described with reference to FIG. In the ventilator 1E, when the air supply fan 2 is driven, an air flow toward the air supply outlet 6 is generated in the air supply passage 9E. As a result, the outside air OA is sucked from the outside air inlet 5, passes through the first channel 32 a of the heat exchange element 32 and the product air channel 11 b of the indirect vaporization element 11, and is supplied indoors as the supply air SA from the supply air outlet 6. To be supplied.

  Further, when the exhaust fan 3 is driven, an air flow toward the exhaust outlet 8 is generated in the first exhaust passage 10G and the second exhaust passage 10H. Accordingly, a part of the outside air OA passes through the working air passage 11a of the indirect vaporization element 11 by the first exhaust passage 10G and is discharged to the outdoors from the exhaust outlet 8 as the exhaust EA. Also, the return air RA from the room is sucked in from the return air suction port 7 by the second exhaust flow path 10H, passes through the second flow path 32b of the heat exchange element 32, and is exhausted from the exhaust outlet 8 as the exhaust EA. To be discharged.

  Therefore, in the ventilator 1E, the outside air OA becomes the product air PA and the working air WA.

  In the heat exchange element 32, heat exchange is performed between the outside air OA passing through the first flow path 32a and the return air RA passing through the second flow path 32b. By using the ventilator 1E in the summer, the indoor temperature is lowered, and the temperature of the return air RA is lower than the temperature of the outside air OA.

  Therefore, the temperature of the outside air OA that has passed through the first flow path 32a of the heat exchange element 32 decreases, and the temperature of the return air RA that has passed through the second flow path 32b increases.

  As described above, in the indirect vaporization element 11, the working air WA is cooled by the heat of vaporization of water, and the product air PA is cooled by the cold air of the working air WA, so the outside air OA that has passed through the product air flow path 11b. The temperature drops without changing the humidity (absolute humidity).

  Therefore, the outside air OA that has passed through the product air flow path 11b of the indirect vaporization element 11 is blown out as the supply air SA from the supply air outlet 6 so that the indoor temperature can be lowered.

  Here, the temperature of the outside air OA passing through the product air flow path 11 b of the indirect vaporization element 11 is lowered by the heat exchange unit 31 in the previous stage. Accordingly, as described with reference to FIG. 5, if the input temperature of the product air PA is low, the outlet temperature of the product air PA is lowered. By reducing the input temperature of the PA, the outlet temperature of the product air PA can be efficiently lowered to control the supply air temperature.

  Further, as described with reference to FIG. 5, if the input temperature of the working air WA is low, the outlet temperature of the product air PA is lowered, so that a part of the outside air OA cooled by the heat exchange unit 31 is used as the working air WA. Thus, the outlet temperature of the product air PA can be efficiently lowered to control the supply air temperature.

  Since the outside air OA that has passed through the working air flow path 11a of the indirect vaporization element 11 becomes high-humidity air, it is discharged from the exhaust outlet 8 as exhaust EA. Moreover, since the temperature of the return air RA that has passed through the second flow path 32b of the heat exchange element 32 rises, it is discharged from the exhaust outlet 8 as exhaust EA.

  In the ventilator 1E, similarly to the ventilator 1D of the fourth embodiment, the flow rate of the product air PA passing through the product air flow path 11b of the indirect vaporization element 11 is adjusted by the opening degree of the supply air flow rate adjustment damper 14. The Further, the flow rate of the working air WA passing through the working air flow path 11a of the indirect vaporization element 11 is adjusted by the opening degree of the exhaust flow rate adjustment damper 15.

  Thus, either or both of the supply air flow adjustment damper 14 and the exhaust flow adjustment damper 15 are operated to adjust the flow rate of the product air PA, the flow rate of the working air WA, or both of the flow rates of FIG. As described with reference to FIG. 4, the outlet temperature of the product air PA in the indirect vaporization element 11 is controlled. Therefore, the supply air temperature from the supply air outlet 6 is controlled.

  Further, the flow rate of the product air PA can be adjusted by changing the rotational speed of the air supply fan 2, and similarly, the working air can be controlled by changing the rotational speed of the exhaust fan 3 to control the air volume. The flow rate of WA can be adjusted.

  Therefore, the outlet temperature of the product air PA in the indirect vaporization element 11 is controlled by controlling the air volume of either the air supply fan 2 and the exhaust fan 3 or both the air supply fan 2 and the exhaust fan 3. The supply air temperature from the blower outlet 6 is controlled.

  Even if the control of the opening degree of at least one of the supply air flow adjustment damper 14 and the exhaust flow adjustment damper 15 and the control of the air volume of at least one of the supply air fan 2 and the exhaust fan 3 are combined, the product in the indirect vaporization element 11 The outlet temperature of the air PA is controlled, and the supply air temperature from the supply air outlet 6 is controlled.

  The ventilation device 1E includes a heat exchange unit 31, and uses the return air RA in the heat exchange unit 31 and uses the OA cooled by the heat exchange unit 31 in the indirect vaporization cooling unit 4, thereby improving the cooling capacity. . Further, by using the return air RA, it is possible to cool and take in the outside air while exhausting indoor air to the outdoors, and the ventilator 1E has a function of performing cooling while performing ventilation.

  Then, by adjusting the flow rate of the return air RA and the flow rate of the supply air SA, it is possible to perform a ventilation operation in which the room air is replaced in a predetermined time. For this reason, in the ventilator 1E, since the temperature is controlled by the flow rate of the working air WA and the flow rate of the product air PA, the ventilation operation and the cooling are performed so that a desired cooling temperature can be obtained and a predetermined ventilation amount can be secured. Control that links the operations is performed.

<Configuration of Ventilator 1F of Sixth Embodiment>
FIG. 12 is a configuration diagram illustrating an example of a ventilation device 1F according to the sixth embodiment. The ventilator 1 </ b> F of the sixth embodiment includes an air supply flow path that bypasses the indirect evaporative cooling unit 4 in the ventilator 1 </ b> F having the heat exchange unit 31. In addition, in the ventilation apparatus 1F of 6th Embodiment, the same number is attached | subjected and demonstrated about the same component as 1D of ventilation apparatus of 4th Embodiment.

  The ventilator 1 </ b> F passes through the supply air fan 2, the first flow path 32 a of the heat exchange element 32, and the product air flow path 11 b of the indirect vaporization element 11 from the outside air inlet 5 and communicates with the supply air outlet 6. A road 9F is provided. The first exhaust flow path 10E and the second exhaust flow path 10F have the same configuration as the ventilation device 1D of the fourth embodiment.

  The ventilator 1 </ b> F includes a bypass channel 10 </ b> I that branches from the air supply channel 9 </ b> F upstream of the indirect evaporative cooling unit 4, bypasses the indirect evaporative cooling unit 4, and communicates with the air supply outlet 6.

  The bypass flow path 10I includes an air supply flow rate adjustment damper 18. The flow rate of the air flowing through the bypass passage 10I is adjusted by adjusting the opening degree of the supply air flow adjustment damper 18. Thereby, the flow rate of the air supplied to the supply air outlet 6 by bypassing the indirect vaporization cooling unit 4 is adjusted.

  In addition, the air supply flow path 9F is provided with the air purifying filter 16 on the upstream side of the heat exchange unit 31, for example.

<Operation of Ventilator 1F of Sixth Embodiment>
Next, the operation of the ventilation device 1F according to the sixth embodiment will be described with reference to FIG. In the ventilation device 1F, when the air supply fan 2 is driven, an air flow toward the air supply outlet 6 is generated in the air supply passage 9F. As a result, the outside air OA is sucked from the outside air inlet 5, passes through the first channel 32 a of the heat exchange element 32 and the product air channel 11 b of the indirect vaporization element 11, and is supplied indoors as the supply air SA from the supply air outlet 6. To be supplied.

  Further, when the exhaust fan 3 is driven, an air flow toward the exhaust outlet 8 is generated in the first exhaust passage 10E and the second exhaust passage 10F. As a result, the return air RA from the room is sucked in from the return air suction port 7, passes through the working air flow path 11 a of the indirect vaporization element 11, and is discharged to the outside as the exhaust air EA from the exhaust air outlet 8. Further, a part of the return air RA passes through the second flow path 32b of the heat exchange element 32, and is discharged to the outside as the exhaust EA from the exhaust outlet 8.

  Therefore, in the ventilator 1F, the outside air OA becomes the product air PA, and the return air RA becomes the working air WA.

  In the heat exchange element 32, heat exchange is performed between the outside air OA passing through the first flow path 32a and the return air RA passing through the second flow path 32b. By using the ventilator 1F in summer, the indoor temperature is lowered, and the temperature of the return air RA is lower than the temperature of the outside air OA.

  Therefore, the temperature of the outside air OA that has passed through the first flow path 32a of the heat exchange element 32 decreases, and the temperature of the return air RA that has passed through the second flow path 32b increases.

  As described above, in the indirect vaporization element 11, the working air WA is cooled by the heat of vaporization of water, and the product air PA is cooled by the cold air of the working air WA, so the outside air OA that has passed through the product air flow path 11b. The temperature drops without changing the humidity (absolute humidity).

  Therefore, the outside air OA that has passed through the product air flow path 11b of the indirect vaporization element 11 is blown out as the supply air SA from the supply air outlet 6 so that the indoor temperature can be lowered.

  Here, the temperature of the outside air OA passing through the product air flow path 11 b of the indirect vaporization element 11 is lowered by the heat exchange unit 31 in the previous stage. Accordingly, as described with reference to FIG. 5, if the input temperature of the product air PA is low, the outlet temperature of the product air PA is lowered. By reducing the input temperature of the PA, the outlet temperature of the product air PA can be efficiently lowered to control the supply air temperature.

  Further, as described with reference to FIG. 5, when the working air WA input temperature is low, the outlet temperature of the product air PA decreases. Therefore, by using the return air RA as the working air WA, the outlet temperature of the product air PA can be reduced. The supply air temperature can be lowered.

  In the ventilator 1F, the flow rate of the air flowing through the bypass passage 10I is adjusted by adjusting the opening of the supply air flow adjustment damper 18.

  Thereby, the flow rate of the air supplied to the supply air outlet 6 by bypassing the indirect vaporization cooling unit 4 is adjusted.

  Therefore, the air cooled through the indirect evaporative cooling unit 4 and the indirect evaporative cooling unit 4 are bypassed by operating the supply air flow adjusting damper 18 and adjusting the flow rate of the air flowing through the bypass flow path 10I. In the indirect evaporative cooling unit 4, the mixing ratio of uncooled air is controlled, and the supply air temperature from the supply air outlet 6 is controlled.

  The ventilation device 1 </ b> F includes a heat exchange unit 31, and the cooling capacity is improved by using the return air RA in the heat exchange unit 31 and the indirect evaporative cooling unit 4. Further, by using the return air RA, it is possible to cool and take in the outside air while exhausting indoor air to the outdoors, and the ventilator 1F has a function of performing cooling while performing ventilation.

  Then, by adjusting the flow rate of the return air RA and the flow rate of the supply air SA, it is possible to perform a ventilation operation in which the room air is replaced in a predetermined time. For this reason, in the ventilator 1F, since the temperature is controlled by the flow rate of the working air WA and the flow rate of the product air PA, the ventilation operation and the cooling are performed so that a desired cooling temperature can be obtained and a predetermined ventilation amount can be secured. Control that links the operations is performed.

<Configuration of Ventilator 1G of Seventh Embodiment>
FIG. 13: is a block diagram which shows an example of the ventilation apparatus 1G of 7th Embodiment. A ventilation device 1G according to the seventh embodiment includes a dehumidifying unit 33 in addition to the air supply fan 2, the exhaust fan 3, and the indirect evaporative cooling unit 4. Note that, in the ventilation device 1G of the seventh embodiment, the same components as those of the ventilation device 1A of the first embodiment will be described with the same numbers.

  The dehumidifying unit 33 includes a dehumidifying channel 35a and a regeneration channel 35b partitioned by a partition wall 34, a dehumidifying rotor 36 that is rotationally driven across the dehumidifying channel 35a and the regeneration channel 35b, and air passing through the regeneration channel 35b. And a rotation driving device (not shown) that rotationally drives the dehumidifying rotor 36.

  The dehumidifying rotor 36 is configured in a disc shape so that a channel having a honeycomb structure having an adsorbent such as silica gel is formed in the axial direction. The dehumidification rotor 36 is disposed across the dehumidification channel 35a and the regeneration channel 35b, and the air passing through the dehumidification channel 35a and the air passing through the regeneration channel 35b pass through the dehumidification rotor 36, respectively.

  In the dehumidifying rotor 36, the dehumidifying channel 35a and the regeneration channel 35b are partitioned by the partition wall 34, and the air passing through the dehumidifying channel 35a and the air passing through the regeneration channel 35b are not mixed.

  Moisture is adsorbed by the dehumidifying rotor 36 and dehumidified in the air passing through the dehumidifying channel 35a. When the dehumidifying rotor 36 is driven to rotate, the portion that has adsorbed moisture moves to the regeneration channel 35b side. The air passing through the regeneration flow path 35b is heated by the heater 37, whereby the dehumidification rotor 36 is heated by the air passing through the regeneration flow path 35b, the water is evaporated, and the water is regenerated so that the water can be adsorbed again.

  Then, the regenerated portion of the dehumidifying rotor 36 moves to the dehumidifying channel 35a side. As a result, the dehumidifying unit 33 rotationally drives the dehumidifying rotor 36 to dehumidify the air passing through the dehumidifying passage 35a while repeating adsorption and regeneration of moisture.

  The air supply passage 9G communicates from the outside air inlet 5 to the air supply outlet 6 through the air supply fan 2, the dehumidification passage 35a of the dehumidification unit 33, and the product air passage 11b of the indirect vaporization element 11.

  The first exhaust passage 10 </ b> J communicates from the return air suction port 7 to the exhaust outlet 8 through the working air passage 11 a of the indirect vaporization element 11 and the exhaust fan 3. The second exhaust passage 10K communicates from the return air suction port 7 to the exhaust outlet 8 through the regeneration passage 35b of the dehumidifying unit 33 and the exhaust fan 3.

  The air supply passage 9G includes an air supply flow rate adjustment damper 14 on the upstream side of the dehumidifying unit 33, for example. By adjusting the opening degree of the air supply flow rate adjustment damper 14, the flow rate of the air flowing through the air supply channel 9G is adjusted. Thereby, the flow volume of the product air PA which flows through the product air flow path 11b of the indirect vaporization element 11 is adjusted.

  The first exhaust flow path 10J includes an exhaust flow rate adjustment damper 15 on the upstream side of the indirect evaporative cooling unit 4, for example. By adjusting the opening degree of the exhaust flow rate adjustment damper 15, the flow rate of the air flowing through the first exhaust flow path 10J is adjusted. Thereby, the flow volume of the working air WA which flows through the working air flow path 11a of the indirect vaporization element 11 is adjusted.

  Further, the air supply passage 9G includes an air purification filter 16 on the upstream side of the dehumidifying unit 33, for example. By disposing the air cleaning filter 16 on the upstream side of the dehumidifying unit 33, entry of dust or the like into the dehumidifying rotor 36 and the indirect vaporizing element 11 is prevented.

  Further, the supply air flow path 9G includes a temperature sensor 17 at the supply air outlet 6 so that the supply air temperature is detected.

<Operation of Ventilator 1G of Seventh Embodiment>
Next, the operation of the ventilation device 1G according to the seventh embodiment will be described with reference to FIG. In the ventilation device 1G, when the air supply fan 2 is driven, an air flow toward the air supply outlet 6 is generated in the air supply passage 9G. As a result, the outside air OA is sucked from the outside air suction port 5, passes through the air purification filter 16, the dehumidification channel 35 a of the dehumidification unit 33 and the product air channel 11 b of the indirect vaporization element 11, and is supplied from the supply air outlet 6 to the supply air SA. Is supplied indoors.

  When the exhaust fan 3 is driven, an air flow toward the exhaust outlet 8 is generated in the first exhaust passage 10J and the second exhaust passage 10K. As a result, the return air RA from the room is sucked in from the return air suction port 7, passes through the working air flow path 11 a of the indirect vaporization element 11, and is discharged to the outside as the exhaust air EA from the exhaust air outlet 8. A part of the return air RA passes through the regeneration flow path 35b of the dehumidifying unit 33 and is discharged to the outside as the exhaust EA from the exhaust outlet 8.

  Therefore, in the ventilator 1G, the outside air OA becomes the product air PA, and the return air RA becomes the working air WA.

  As described above, in the indirect vaporization element 11, the working air WA is cooled by the heat of vaporization of water, and the product air PA is cooled by the cold air of the working air WA, so the outside air OA that has passed through the product air flow path 11b. The temperature drops without changing the humidity (absolute humidity).

  Therefore, the outside air OA that has passed through the product air flow path 11b of the indirect vaporization element 11 is blown out as the supply air SA from the supply air outlet 6 so that the indoor temperature can be lowered.

  Here, the humidity of the outside air OA passing through the product air flow path 11 b of the indirect vaporization element 11 is lowered by the dehumidifying unit 33 in the previous stage. Accordingly, as described with reference to FIG. 7, when the input humidity of the product air PA is low, the outlet temperature of the product air PA is lowered. Therefore, the dehumidifying unit 33 is disposed in the front stage of the indirect evaporative cooling unit 4, and the product air PA By reducing the input humidity, the outlet temperature of the product air PA can be efficiently lowered and the supply air temperature can be controlled.

  Moreover, indoor temperature can be lowered | hung by using the ventilation apparatus 1G in summer. Therefore, the temperature of the return air RA is also low. As described in FIG. 5, when the input temperature of the working air WA is low, the outlet temperature of the product air PA is lowered. Therefore, the outlet temperature of the product air PA is efficiently used by using the return air RA as the working air WA. The supply air temperature can be controlled by lowering the value.

  Note that the return air RA that has passed through the working air flow path 11a of the indirect vaporization element 11 and the return air RA that has passed through the regeneration flow path 35b of the dehumidifying unit 33 become high-humidity air. Discharge.

  In the ventilation device 1G, the flow rate of the product air PA passing through the product air flow path 11b of the indirect vaporization element 11 is adjusted by the opening degree of the supply air flow rate adjustment damper 14. Further, the flow rate of the working air WA passing through the working air flow path 11a of the indirect vaporization element 11 is adjusted by the opening degree of the exhaust flow rate adjustment damper 15.

  Thereby, even in the ventilation apparatus 1G including the dehumidifying unit 33, either the supply air flow rate adjustment damper 14 or the exhaust flow rate adjustment damper 15 is operated to adjust the flow rate of the product air PA or the flow rate of the working air WA. 3 and 4, the outlet temperature of the product air PA in the indirect vaporization element 11 is controlled. Therefore, the supply air temperature from the supply air outlet 6 is controlled.

  For example, when the flow rate of the working air WA is increased, the outlet temperature of the product air PA in the indirect vaporization element 11 is reduced, so that the supply air temperature from the supply air outlet 6 can be lowered.

  Further, when the flow rate of the working air WA is decreased, the outlet temperature of the product air PA in the indirect vaporization element 11 is increased, so that the supply air temperature from the supply air outlet 6 can be increased.

  Since the supply air temperature can be controlled by adjusting the flow rate of either the product air PA or the working air WA, a configuration including either the supply air flow rate adjustment damper 14 or the exhaust flow rate adjustment damper 15 may be adopted. .

  Further, by operating both the supply air flow adjustment damper 14 and the exhaust air flow adjustment damper 15 to adjust the flow rate of the product air PA and the flow rate of the working air WA, the outlet temperature of the product air PA in the indirect vaporization element 11 is increased. The supply air temperature from the supply air outlet 6 is controlled.

  Further, the flow rate of the product air PA can be adjusted by changing the rotational speed of the air supply fan 2, and similarly, the working air can be controlled by changing the rotational speed of the exhaust fan 3 to control the air volume. The flow rate of WA can be adjusted.

  Therefore, the outlet temperature of the product air PA in the indirect vaporization element 11 is controlled by controlling the air volume of either the air supply fan 2 and the exhaust fan 3 or both the air supply fan 2 and the exhaust fan 3. The supply air temperature from the blower outlet 6 is controlled.

  Even if the control of the opening degree of at least one of the supply air flow adjustment damper 14 and the exhaust flow adjustment damper 15 and the control of the air volume of at least one of the supply air fan 2 and the exhaust fan 3 are combined, the product in the indirect vaporization element 11 The outlet temperature of the air PA is controlled, and the supply air temperature from the supply air outlet 6 is controlled.

  FIG. 13B shows the effect of the configuration including the dehumidifying unit 33. For example, the outside air QA having a temperature of 30 ° C., an absolute humidity of 10 g / kg (DA), and a relative humidity of about 40% RH is dehumidified by the dehumidifying unit 33. By passing through the flow path 35a, the input air has a temperature of 40 ° C., an absolute humidity of 5 g / kg (DA), and a relative humidity of about 10% RH.

  Here, the temperature of the input air rises because in the dehumidification unit 33, the dehumidification rotor 36 is heated by the heater 37 on the regeneration flow path 35b side.

  If the input air under this condition is the product air PA and the working air WA of the indirect evaporative cooling unit 4, the outlet temperature of the product air PA decreases to 20 ° C. because the input humidity (absolute humidity) is low. Since the absolute humidity is as low as 5 g / kg (DA), there is room for the outlet temperature to further decrease.

  Thereby, the ventilation device 1G includes the dehumidifying unit 33, and the cooling capacity is improved by using the return air RA in the indirect evaporative cooling unit 4. Further, by using the return air RA, it is possible to cool and take in the outside air while exhausting indoor air to the outdoors, and the ventilation device 1G has a function of performing cooling while performing ventilation.

  Then, by adjusting the flow rate of the return air RA and the flow rate of the supply air SA, it is possible to perform a ventilation operation in which the room air is replaced in a predetermined time. For this reason, in the ventilator 1G, the temperature is controlled by the flow rate of the working air WA and the flow rate of the product air PA. Therefore, the ventilation operation and cooling are performed so that a desired cooling temperature can be obtained and a predetermined ventilation amount can be secured. Control that links the operations is performed.

<Configuration of Ventilator 1H of Eighth Embodiment>
FIG. 14 is a configuration diagram illustrating an example of a ventilation device 1H according to the eighth embodiment. The ventilator 1H of the eighth embodiment uses the outside air OA as the working air WA of the indirect vaporization element 11 constituting the indirect vaporization cooling unit 4 in the ventilator 1H having the dehumidifying unit 33. In addition, in the ventilation apparatus 1H of 8th Embodiment, the same number is attached | subjected and demonstrated about the same component as the ventilation apparatus 1G of 7th Embodiment.

  The ventilator 1H passes through an air supply passage 9H communicating with the air supply outlet 6 from the outside air inlet 5 through the air supply fan 2, the dehumidification passage 35a of the dehumidification unit 33 and the product air passage 11b of the indirect vaporization element 11. Prepare.

  Further, the ventilation device 1H branches from the supply air flow path 9H downstream from the dehumidification unit 33, passes through the working air flow path 11a of the indirect vaporization element 11 and the exhaust fan 3, and communicates with the exhaust air outlet 8. A flow path 10L and a second exhaust flow path 10M communicating from the return air suction port 7 through the regeneration flow path 35b of the dehumidifying unit 33 and the exhaust fan 3 to the exhaust outlet 8 are provided.

  The air supply channel 9H includes an air supply flow rate adjustment damper 14 on the upstream side of the dehumidifying unit 33, for example. The first exhaust flow path 10L includes an exhaust flow rate adjustment damper 15 on the downstream side of the branch position with the supply air flow path 9H, for example, on the upstream side of the indirect vaporization cooling unit 4.

  By adjusting the opening degree of the supply air flow adjustment damper 14, the flow rate of the air flowing through the supply air flow path 9H is adjusted. Thereby, the flow volume of the product air PA which flows through the product air flow path 11b of the indirect vaporization element 11 is adjusted.

  Further, the flow rate of the air flowing through the first exhaust flow path 10L is adjusted by adjusting the opening degree of the exhaust flow rate adjustment damper 15. Thereby, the flow volume of the working air WA which flows through the working air flow path 11a of the indirect vaporization element 11 is adjusted.

  In addition, the air supply flow path 9H is provided with the air purifying filter 16 on the upstream side of the dehumidifying unit 33, for example. Further, the air supply passage 9 </ b> H includes a temperature sensor 17 at the air supply outlet 6.

<Operation of Ventilator 1H of Eighth Embodiment>
Next, the operation of the ventilation device 1H according to the eighth embodiment will be described with reference to FIG. In the ventilator 1H, when the air supply fan 2 is driven, an air flow toward the air supply outlet 6 is generated in the air supply passage 9H. As a result, the outside air OA is sucked from the outside air suction port 5, passes through the dehumidification passage 35 a of the dehumidification unit 33 and the product air passage 11 b of the indirect vaporization element 11, and is supplied indoors as the supply air SA from the supply air outlet 6. The

  When the exhaust fan 3 is driven, an air flow toward the exhaust outlet 8 is generated in the first exhaust passage 10L and the second exhaust passage 10M. Thus, a part of the outside air OA passes through the working air passage 11a of the indirect vaporization element 11 by the first exhaust passage 10L, and is discharged to the outside from the exhaust outlet 8 as the exhaust EA. Further, the return air RA from the room is sucked in from the return air inlet 7 by the second exhaust passage 10M, passes through the regeneration passage 35b of the dehumidifying unit 33, and is discharged to the outside as the exhaust EA from the exhaust outlet 8. The

  Therefore, in the ventilator 1H, the outside air OA becomes the product air PA and the working air WA.

  As described above, in the indirect vaporization element 11, the working air WA is cooled by the heat of vaporization of water, and the product air PA is cooled by the cold air of the working air WA, so the outside air OA that has passed through the product air flow path 11b. The temperature drops without changing the humidity (absolute humidity).

  Therefore, the outside air OA that has passed through the product air flow path 11b of the indirect vaporization element 11 is blown out as the supply air SA from the supply air outlet 6 so that the indoor temperature can be lowered.

  Here, outside air OA is supplied to both the product air passage 11b and the working air passage 11a of the indirect vaporization element 11, and the humidity of the outside air OA is lowered by the dehumidifying unit 33 at the preceding stage. Accordingly, as described with reference to FIG. 7, when the input humidity of the product air PA and the working air WA is low, the outlet temperature of the product air PA is lowered. Therefore, the dehumidifying unit 33 is disposed in the front stage of the indirect evaporative cooling unit 4. By reducing the input humidity of the product air PA and the working air WA, the outlet temperature of the product air PA can be efficiently lowered and the supply air temperature can be controlled.

  Since the outside air OA that has passed through the working air passage 11a of the indirect vaporization element 11 and the return air RA that has passed through the regeneration passage 35b of the dehumidifying unit 33 become high-humidity air, it is discharged from the exhaust outlet 8 as exhaust EA. To do.

  In the ventilator 1H, as in the ventilator 1G of the seventh embodiment, the flow rate of the product air PA passing through the product air flow path 11b of the indirect vaporization element 11 is adjusted by the opening degree of the supply air flow rate adjustment damper 14. The Further, the flow rate of the working air WA passing through the working air flow path 11a of the indirect vaporization element 11 is adjusted by the opening degree of the exhaust flow rate adjustment damper 15.

  Thus, either or both of the supply air flow adjustment damper 14 and the exhaust flow adjustment damper 15 are operated to adjust the flow rate of the product air PA, the flow rate of the working air WA, or both of the flow rates of FIG. As described with reference to FIG. 4, the outlet temperature of the product air PA in the indirect vaporization element 11 is controlled. Therefore, the supply air temperature from the supply air outlet 6 is controlled.

  Further, the flow rate of the product air PA can be adjusted by changing the rotational speed of the air supply fan 2, and similarly, the working air can be controlled by changing the rotational speed of the exhaust fan 3 to control the air volume. The flow rate of WA can be adjusted.

  Therefore, the outlet temperature of the product air PA in the indirect vaporization element 11 is controlled by controlling the air volume of either the air supply fan 2 and the exhaust fan 3 or both the air supply fan 2 and the exhaust fan 3. The supply air temperature from the blower outlet 6 is controlled.

  Even if the control of the opening degree of at least one of the supply air flow adjustment damper 14 and the exhaust flow adjustment damper 15 and the control of the air volume of at least one of the supply air fan 2 and the exhaust fan 3 are combined, the product in the indirect vaporization element 11 The outlet temperature of the air PA is controlled, and the supply air temperature from the supply air outlet 6 is controlled.

  The ventilation device 1H includes a dehumidifying unit 33, and the cooling capacity is improved by using the outside air OA dehumidified by the dehumidifying unit 33 in the indirect evaporative cooling unit 4. Further, by using the return air RA as regeneration air in the dehumidifying unit 33, it is possible to cool and take in the outside air while exhausting indoor air to the outdoors, and the ventilator 1H performs the function of performing cooling while performing ventilation. Will have.

  Then, by adjusting the flow rate of the return air RA and the flow rate of the supply air SA, it is possible to perform a ventilation operation in which the room air is replaced in a predetermined time. For this reason, in the ventilator 1H, the temperature is controlled by the flow rate of the working air WA and the flow rate of the product air PA. Therefore, the ventilation operation and cooling are performed so that a desired cooling temperature can be obtained and a predetermined ventilation amount can be secured. Control that links the operations is performed.

<Configuration of Ventilator 1I of Ninth Embodiment>
FIG. 15: is a block diagram which shows an example of the ventilation apparatus 1I of 9th Embodiment. The ventilator 1I according to the ninth embodiment includes an air supply passage that bypasses the indirect evaporative cooling unit 4 in the ventilator 1I including the dehumidifying unit 33. Note that in the ventilation device 1I of the ninth embodiment, the same components as those of the ventilation device 1G of the seventh embodiment will be described with the same numbers.

  The ventilator 1 </ b> I passes through an air supply passage 9 </ b> I communicating with the air supply outlet 6 from the outside air inlet 5 through the air supply fan 2, the dehumidification passage 35 a of the dehumidification unit 33 and the product air passage 11 b of the indirect vaporization element 11. Prepare. The first exhaust flow path 10J and the second exhaust flow path 10K have the same configuration as the ventilation device 1G of the seventh embodiment.

  The ventilator 1 </ b> I includes a bypass channel 10 </ b> N that branches from the air supply channel 9 </ b> I upstream from the indirect evaporative cooling unit 4, bypasses the indirect evaporative cooling unit 4, and communicates with the air supply outlet 6.

  The bypass flow path 10N includes an air supply flow rate adjustment damper 18. The flow rate of the air flowing through the bypass passage 10N is adjusted by adjusting the opening degree of the supply air flow adjustment damper 18. Thereby, the flow rate of the air supplied to the supply air outlet 6 by bypassing the indirect vaporization cooling unit 4 is adjusted.

  The air supply channel 9I includes the air cleaning filter 16 on the upstream side of the dehumidifying unit 33, for example.

<Operation of Ventilator 1I of Ninth Embodiment>
Next, the operation of the ventilator 1I according to the ninth embodiment will be described with reference to FIG. In the ventilator 1I, when the air supply fan 2 is driven, an air flow toward the air supply outlet 6 is generated in the air supply passage 9I. As a result, the outside air OA is sucked from the outside air suction port 5, passes through the dehumidification passage 35 a of the dehumidification unit 33 and the product air passage 11 b of the indirect vaporization element 11, and is supplied indoors as the supply air SA from the supply air outlet 6. The

  When the exhaust fan 3 is driven, an air flow toward the exhaust outlet 8 is generated in the first exhaust passage 10J and the second exhaust passage 10K. As a result, the return air RA from the room is sucked in from the return air suction port 7, passes through the working air flow path 11 a of the indirect vaporization element 11, and is discharged to the outside as the exhaust air EA from the exhaust air outlet 8. Further, a part of the return air RA passes through the regeneration flow path 35a of the dehumidifying unit 33, and is discharged to the outside from the exhaust outlet 8 as exhaust EA.

  Therefore, in the ventilator 1I, the outside air OA becomes the product air PA, and the return air RA becomes the working air WA.

  As described above, in the indirect vaporization element 11, the working air WA is cooled by the heat of vaporization of water, and the product air PA is cooled by the cold air of the working air WA, so the outside air OA that has passed through the product air flow path 11b. The temperature drops without changing the humidity (absolute humidity).

  Therefore, the outside air OA that has passed through the product air flow path 11b of the indirect vaporization element 11 is blown out as the supply air SA from the supply air outlet 6 so that the indoor temperature can be lowered.

  Here, the humidity of the outside air OA passing through the product air flow path 11 b of the indirect vaporization element 11 is lowered by the dehumidifying unit 33 in the previous stage. Accordingly, as described with reference to FIG. 7, when the input humidity of the product air PA is low, the outlet temperature of the product air PA is lowered. Therefore, the dehumidifying unit 33 is disposed in the front stage of the indirect evaporative cooling unit 4, and the product air PA By reducing the input humidity, the outlet temperature of the product air PA can be efficiently lowered and the supply air temperature can be controlled.

  Moreover, indoor temperature can be lowered | hung by using the ventilator 1I in summer. Therefore, the temperature of the return air RA is also low. As described in FIG. 5, when the input temperature of the working air WA is low, the outlet temperature of the product air PA is lowered. Therefore, the outlet temperature of the product air PA is efficiently used by using the return air RA as the working air WA. The supply air temperature can be controlled by lowering the value.

  In the ventilator 1I, the flow rate of the air flowing through the bypass passage 10N is adjusted by adjusting the opening of the supply air flow adjustment damper 18.

  Thereby, the flow rate of the air supplied to the supply air outlet 6 by bypassing the indirect vaporization cooling unit 4 is adjusted.

  Therefore, by operating the air supply flow rate adjustment damper 18 and adjusting the flow rate of the air flowing through the bypass passage 10N, the air cooled through the indirect evaporative cooling unit 4 and the indirect evaporative cooling unit 4 are bypassed. The mixing ratio of the uncooled air is controlled, and the supply air temperature from the supply air outlet 6 is controlled.

  Note that the air (outside air OA) bypassing the indirect evaporative cooling unit 4 is dehumidified by the dehumidifying unit 33, so the humidity of the supply air SA does not increase.

  The ventilator 1I includes a dehumidifying unit 33, and the cooling capacity is improved by using the return air RA in the indirect evaporative cooling unit 4. Further, by using the return air RA, it is possible to cool and take in the outside air while exhausting indoor air to the outdoors, and the ventilator 1I has a function of performing cooling while performing ventilation.

  Then, by adjusting the flow rate of the return air RA and the flow rate of the supply air SA, it is possible to perform a ventilation operation in which the room air is replaced in a predetermined time. For this reason, in the ventilator 1I, since the temperature is controlled by the flow rate of the working air WA and the flow rate of the product air PA, the ventilation operation and the cooling are performed so that a desired cooling temperature can be obtained and a predetermined ventilation amount can be secured. Control that links the operations is performed.

<Configuration of Ventilator 1J of Tenth Embodiment>
FIG. 16 is a configuration diagram illustrating an example of a ventilation device 1J according to the tenth embodiment. A ventilator 1J according to the tenth embodiment includes a heat exchange unit 31 and a dehumidifying unit 33 in addition to the air supply fan 2, the exhaust fan 3, and the indirect evaporative cooling unit 4. Note that in the ventilator 1J of the tenth embodiment, the same components as those of the ventilator 1A of the first embodiment will be described with the same numbers.

  The air supply flow path 9J passes from the outside air inlet 5 through the air supply fan 2, the dehumidification flow path 35a of the dehumidification unit 33, the first flow path 32a of the heat exchange element 32, and the product air flow path 11b of the indirect vaporization element 11. It communicates with the air supply outlet 6.

  The first exhaust passage 10P communicates from the return air suction port 7 to the exhaust outlet 8 through the working air passage 11a of the indirect vaporization element 11 and the exhaust fan 3. The second exhaust passage 10Q communicates from the return air suction port 7 to the exhaust outlet 8 through the second passage 32b of the heat exchange element 32, the regeneration passage 35b of the dehumidifying unit 33, and the exhaust fan 3. To do.

  The air supply passage 9J includes an air supply flow rate adjustment damper 14 on the upstream side of the dehumidifying unit 33, for example. By adjusting the opening degree of the supply air flow adjustment damper 14, the flow rate of the air flowing through the supply air flow path 9J is adjusted. Thereby, the flow volume of the product air PA which flows through the product air flow path 11b of the indirect vaporization element 11 is adjusted.

  The first exhaust flow path 10P includes an exhaust flow rate adjustment damper 15 on the upstream side of the indirect evaporative cooling unit 4, for example. By adjusting the opening degree of the exhaust flow rate adjustment damper 15, the flow rate of the air flowing through the first exhaust flow path 10P is adjusted. Thereby, the flow volume of the working air WA which flows through the working air flow path 11a of the indirect vaporization element 11 is adjusted.

  Further, the air supply passage 9J includes an air purification filter 16 on the upstream side of the dehumidifying unit 33, for example. By disposing the air cleaning filter 16 on the upstream side of the dehumidifying unit 33, intrusion of dust or the like into the dehumidifying rotor 36, the heat exchange element 32, and the indirect vaporizing element 11 is prevented.

  Furthermore, the supply air flow path 9J includes a temperature sensor 17 at the supply air outlet 6 so that the supply air temperature is detected.

<Operation of Ventilator 1J of Tenth Embodiment>
Next, the operation of the ventilator 1J according to the tenth embodiment will be described with reference to FIG. In the ventilator 1J, when the air supply fan 2 is driven, an air flow toward the air supply outlet 6 is generated in the air supply passage 9J. As a result, the outside air OA is sucked from the outside air suction port 5, and the air purification filter 16, the dehumidifying channel 35 a of the dehumidifying unit 33, the first channel 32 a of the heat exchange element 32, and the product air channel 11 b of the indirect vaporizing element 11. , And is supplied into the room as supply air SA from the supply air outlet 6.

  Further, when the exhaust fan 3 is driven, an air flow toward the exhaust outlet 8 is generated in the first exhaust passage 10P and the second exhaust passage 10Q. As a result, the return air RA from the room is sucked in from the return air suction port 7, passes through the working air flow path 11 a of the indirect vaporization element 11, and is discharged to the outside as the exhaust air EA from the exhaust air outlet 8. Further, a part of the return air RA passes through the second flow path 32b of the heat exchange element 32 and the regeneration flow path 35b of the dehumidifying unit 33, and is discharged to the outside from the exhaust outlet 8 as exhaust EA.

  Therefore, in the ventilator 1J, the outside air OA becomes the product air PA, and the return air RA becomes the working air WA.

  In the dehumidifying unit 33, the outside air OA passing through the dehumidifying channel 35a is dehumidified. However, since the dehumidification rotor 36 is heated by the regeneration air heated by the heater 37 on the regeneration channel 35b side, the temperature of the outside air OA passing through the dehumidification channel 35a rises.

  In the heat exchange element 32, heat exchange is performed between the outside air OA passing through the first flow path 32a and the return air RA passing through the second flow path 32b. By using the ventilator 1J in the summer, the indoor temperature is lowered, and the temperature of the return air RA is lower than the temperature of the outside air OA.

  Therefore, the temperature of the outside air OA that has passed through the first flow path 32a of the heat exchange element 32 decreases, and the temperature of the return air RA that has passed through the second flow path 32b increases.

  As a result, the outside air OA dehumidified and heated by passing through the dehumidifying flow path 35a of the dehumidifying unit 33 passes through the first flow path 32a of the heat exchange element 32, so that the humidity does not change and the temperature decreases.

  As described above, in the indirect vaporization element 11, the working air WA is cooled by the heat of vaporization of water, and the product air PA is cooled by the cold air of the working air WA, so the outside air OA that has passed through the product air flow path 11b. The temperature drops without changing the humidity (absolute humidity).

  Therefore, the outside air OA that has passed through the product air flow path 11b of the indirect vaporization element 11 is blown out as the supply air SA from the supply air outlet 6 so that the indoor temperature can be lowered.

  Here, the humidity of the outside air OA passing through the product air flow path 11 b of the indirect vaporization element 11 is lowered by the dehumidifying unit 33 in the previous stage. Further, the temperature is lowered by the heat exchange unit 31. Accordingly, as described with reference to FIGS. 5 and 7, if the input humidity and the input temperature of the product air PA are low, the outlet temperature of the product air PA is lowered. Therefore, the dehumidifying unit 33 and the heat are disposed in front of the indirect evaporative cooling unit 4. By arranging the replacement unit 31 and lowering the input humidity and the input temperature of the product air PA, the outlet temperature of the product air PA can be efficiently lowered and the supply air temperature can be controlled.

  Moreover, indoor temperature can be lowered | hung by using the ventilator 1J in summer. Therefore, the temperature of the return air RA is also low. As described in FIG. 5, when the input temperature of the working air WA is low, the outlet temperature of the product air PA is lowered. Therefore, the outlet temperature of the product air PA is efficiently used by using the return air RA as the working air WA. The supply air temperature can be controlled by lowering the value.

  The return air RA passing through the working air passage 11a of the indirect vaporization element 11 and the return air RA passing through the second passage 32b of the heat exchange element 32 and the regeneration passage 35b of the dehumidifying unit 33 are air of high humidity. Therefore, the exhaust gas is discharged from the exhaust outlet 8 as exhaust EA.

  In the ventilator 1 </ b> J, the flow rate of the product air PA passing through the product air flow path 11 b of the indirect vaporization element 11 is adjusted by the opening degree of the supply air flow rate adjustment damper 14. Further, the flow rate of the working air WA passing through the working air flow path 11a of the indirect vaporization element 11 is adjusted by the opening degree of the exhaust flow rate adjustment damper 15.

  As a result, even in the ventilator 1J including the dehumidifying unit 33 and the heat exchange unit 31, either the supply air flow rate adjustment damper 14 or the exhaust flow rate adjustment damper 15 is operated to flow the product air PA or the working air WA. As described with reference to FIGS. 3 and 4, the outlet temperature of the product air PA in the indirect vaporization element 11 is controlled. Therefore, the supply air temperature from the supply air outlet 6 is controlled.

  For example, when the flow rate of the working air WA is increased, the outlet temperature of the product air PA in the indirect vaporization element 11 is reduced, so that the supply air temperature from the supply air outlet 6 can be lowered.

  Further, when the flow rate of the working air WA is decreased, the outlet temperature of the product air PA in the indirect vaporization element 11 is increased, so that the supply air temperature from the supply air outlet 6 can be increased.

  Since the supply air temperature can be controlled by adjusting the flow rate of either the product air PA or the working air WA, a configuration including either the supply air flow rate adjustment damper 14 or the exhaust flow rate adjustment damper 15 may be adopted. .

  Further, by operating both the supply air flow adjustment damper 14 and the exhaust air flow adjustment damper 15 to adjust the flow rate of the product air PA and the flow rate of the working air WA, the outlet temperature of the product air PA in the indirect vaporization element 11 is increased. The supply air temperature from the supply air outlet 6 is controlled.

  Further, the flow rate of the product air PA can be adjusted by changing the rotational speed of the air supply fan 2, and similarly, the working air can be controlled by changing the rotational speed of the exhaust fan 3 to control the air volume. The flow rate of WA can be adjusted.

  Therefore, the outlet temperature of the product air PA in the indirect vaporization element 11 is controlled by controlling the air volume of either the air supply fan 2 and the exhaust fan 3 or both the air supply fan 2 and the exhaust fan 3. The supply air temperature from the blower outlet 6 is controlled.

  Even if the control of the opening degree of at least one of the supply air flow adjustment damper 14 and the exhaust flow adjustment damper 15 and the control of the air volume of at least one of the supply air fan 2 and the exhaust fan 3 are combined, the product in the indirect vaporization element 11 The outlet temperature of the air PA is controlled, and the supply air temperature from the supply air outlet 6 is controlled.

  The ventilator 1J includes a dehumidification unit 33 and a heat exchange unit 31, and uses the outside air OA dehumidified by the dehumidification unit 33 and cooled by the heat exchange unit 4 and the indoor cooled return air RA in the indirect evaporative cooling unit 4. By doing so, the cooling capacity is improved. Further, by using the return air RA, it is possible to cool and take in the outside air while exhausting indoor air to the outdoors, and the ventilator 1J has a function of performing cooling while performing ventilation.

  Then, by adjusting the flow rate of the return air RA and the flow rate of the supply air SA, it is possible to perform a ventilation operation in which the room air is replaced in a predetermined time. For this reason, in the ventilator 1J, the temperature is controlled by the flow rate of the working air WA and the flow rate of the product air PA. Therefore, the ventilation operation and cooling are performed so that a desired cooling temperature can be obtained and a predetermined ventilation amount can be secured. Control that links the operations is performed.

<Configuration of Ventilator 1K of Eleventh Embodiment>
FIG. 17 is a configuration diagram illustrating an example of a ventilation device 1K according to the eleventh embodiment. The ventilation device 1K according to the eleventh embodiment uses the outside air OA as the working air WA of the indirect vaporization element 11 constituting the indirect vaporization cooling unit 4 in the ventilation device 1K including the dehumidifying unit 33 and the heat exchange unit 31. Is. Note that in the ventilation device 1K according to the eleventh embodiment, the same components as those in the ventilation device 1J according to the tenth embodiment will be described with the same reference numerals.

  The ventilation device 1K is supplied from the outside air inlet 5 through the air supply fan 2, the dehumidification flow path 35a of the dehumidification unit 33, the first flow path 32a of the heat exchange element 32, and the product air flow path 11b of the indirect vaporization element 11. An air supply passage 9K communicating with the air outlet 6 is provided.

  Further, the ventilation device 1K branches from the supply air flow path 9K downstream from the heat exchange unit 31, passes through the working air flow path 11a of the indirect vaporization element 11 and the exhaust fan 3, and communicates with the exhaust air outlet 8. The second exhaust gas communicated with the exhaust air outlet 8 through the exhaust air flow path 10R, the return air suction port 7, the second flow path 32b of the heat exchange element 32, the regeneration flow path 35b of the dehumidifying unit 33 and the exhaust fan 3. A flow path 10S is provided.

  The air supply channel 9K includes an air supply flow rate adjustment damper 14 on the upstream side of the dehumidifying unit 33, for example. The first exhaust flow path 10R includes an exhaust flow rate adjustment damper 15 on the downstream side of the branch position with the air supply flow path 9K, for example, on the upstream side of the indirect vaporization cooling unit 4.

  By adjusting the opening degree of the supply air flow adjustment damper 14, the flow rate of the air flowing through the supply air passage 9K is adjusted. Thereby, the flow volume of the product air PA which flows through the product air flow path 11b of the indirect vaporization element 11 is adjusted.

  Further, by adjusting the opening degree of the exhaust flow rate adjustment damper 15, the flow rate of the air flowing through the first exhaust flow path 10R is adjusted. Thereby, the flow volume of the working air WA which flows through the working air flow path 11a of the indirect vaporization element 11 is adjusted.

  Note that the air supply channel 9K includes, for example, the air purification filter 16 on the upstream side of the dehumidifying unit 33. Further, the air supply passage 9K includes a temperature sensor 17 at the air supply outlet 6.

<Operation of Ventilator 1K of Eleventh Embodiment>
Next, the operation of the ventilation device 1K according to the eleventh embodiment will be described with reference to FIG. In the ventilator 1K, when the air supply fan 2 is driven, an air flow toward the air supply outlet 6 is generated in the air supply passage 9K. As a result, the outside air OA is sucked from the outside air inlet 5 and passes through the dehumidifying channel 35a of the dehumidifying unit 33, the first channel 32a of the heat exchange element 32, and the product air channel 11b of the indirect vaporizing element 11 to supply air. The air supply SA is supplied to the room from the air outlet 6.

  When the exhaust fan 3 is driven, an air flow toward the exhaust outlet 8 is generated in the first exhaust passage 10R and the second exhaust passage 10S. Accordingly, a part of the outside air OA passes through the working air passage 11a of the indirect vaporization element 11 by the first exhaust passage 10R and is discharged to the outside from the exhaust outlet 8 as the exhaust EA. Further, the return air RA from the room is sucked from the return air suction port 7 by the second exhaust flow path 10S, passes through the second flow path 32b of the heat exchange element 32 and the regeneration flow path 35b of the dehumidifying unit 33, Exhaust air is discharged from the exhaust outlet 8 as exhaust EA.

  Therefore, in the ventilator 1K, the outside air OA becomes the product air PA and the working air WA.

  In the dehumidifying unit 33, the outside air OA passing through the dehumidifying channel 35a is dehumidified. However, since the dehumidification rotor 36 is heated by the regeneration air heated by the heater 37 on the regeneration channel 35b side, the temperature of the outside air OA passing through the dehumidification channel 35a rises.

  In the heat exchange element 32, heat exchange is performed between the outside air OA passing through the first flow path 32a and the return air RA passing through the second flow path 32b. By using the ventilator 1K in the summer, the indoor temperature is lowered, and the temperature of the return air RA is lower than the temperature of the outside air OA.

  Therefore, the temperature of the outside air OA that has passed through the first flow path 32a of the heat exchange element 32 decreases, and the temperature of the return air RA that has passed through the second flow path 32b increases.

  As a result, the outside air OA dehumidified and heated by passing through the dehumidifying flow path 35a of the dehumidifying unit 33 passes through the first flow path 32a of the heat exchange element 32, so that the humidity does not change and the temperature decreases.

  As described above, in the indirect vaporization element 11, the working air WA is cooled by the heat of vaporization of water, and the product air PA is cooled by the cold air of the working air WA, so the outside air OA that has passed through the product air flow path 11b. The temperature drops without changing the humidity (absolute humidity).

  Therefore, the outside air OA that has passed through the product air flow path 11b of the indirect vaporization element 11 is blown out as the supply air SA from the supply air outlet 6 so that the indoor temperature can be lowered.

  Here, the outside air OA is supplied to both the product air passage 11b and the working air passage 11a of the indirect vaporization element 11, and the humidity and temperature of the outside air OA are lowered by the dehumidifying unit 33 and the heat exchange unit 31 in the previous stage. Yes. As a result, as described with reference to FIGS. 5 and 7, if the input humidity and input temperature of the product air PA and the working air WA are low, the outlet temperature of the product air PA is lowered. By arranging the unit 33 and the heat exchange unit 31 and lowering the input humidity and the input temperature of the product air PA and the working air WA, the outlet temperature of the product air PA is efficiently lowered and the supply air temperature is controlled. Can do.

  Note that the outside air OA that has passed through the working air flow path 11a of the indirect vaporization element 11 and the return air RA that has passed through the second flow path 32b of the heat exchange element 32 and the regeneration flow path 35b of the dehumidifying unit 33 are high humidity air. Therefore, the exhaust gas is discharged from the exhaust outlet 8 as exhaust EA.

  In the ventilator 1K, similarly to the ventilator 1J of the tenth embodiment, the flow rate of the product air PA passing through the product air flow path 11b of the indirect vaporization element 11 is adjusted by the opening degree of the supply air flow rate adjustment damper 14. The Further, the flow rate of the working air WA passing through the working air flow path 11a of the indirect vaporization element 11 is adjusted by the opening degree of the exhaust flow rate adjustment damper 15.

  Thus, either or both of the supply air flow adjustment damper 14 and the exhaust flow adjustment damper 15 are operated to adjust the flow rate of the product air PA, the flow rate of the working air WA, or both of the flow rates of FIG. As described with reference to FIG. 4, the outlet temperature of the product air PA in the indirect vaporization element 11 is controlled. Therefore, the supply air temperature from the supply air outlet 6 is controlled.

  Further, the flow rate of the product air PA can be adjusted by changing the rotational speed of the air supply fan 2, and similarly, the working air can be controlled by changing the rotational speed of the exhaust fan 3 to control the air volume. The flow rate of WA can be adjusted.

  Therefore, the outlet temperature of the product air PA in the indirect vaporization element 11 is controlled by controlling the air volume of either the air supply fan 2 and the exhaust fan 3 or both the air supply fan 2 and the exhaust fan 3. The supply air temperature from the blower outlet 6 is controlled.

  Even if the control of the opening degree of at least one of the supply air flow adjustment damper 14 and the exhaust flow adjustment damper 15 and the control of the air volume of at least one of the supply air fan 2 and the exhaust fan 3 are combined, the product in the indirect vaporization element 11 The outlet temperature of the air PA is controlled, and the supply air temperature from the supply air outlet 6 is controlled.

  The ventilation device 1K includes a dehumidification unit 33 and a heat exchange unit 31, and uses the outside air OA dehumidified by the dehumidification unit 33 and cooled by the heat exchange unit 4 to improve the cooling capacity. . Further, by using the return air RA in the dehumidifying unit 33 and the heat exchange unit 31, it is possible to cool and take in the outside air while exhausting the indoor air to the outdoors, and the ventilation device 1K performs cooling while performing ventilation. Will have the function to do.

  Then, by adjusting the flow rate of the return air RA and the flow rate of the supply air SA, it is possible to perform a ventilation operation in which the room air is replaced in a predetermined time. For this reason, in the ventilator 1K, the temperature is controlled by the flow rate of the working air WA and the flow rate of the product air PA. Therefore, the ventilation operation and the cooling are performed so that a desired cooling temperature can be obtained and a predetermined ventilation amount can be secured. Control that links the operations is performed.

<Configuration of ventilation device 1L according to the twelfth embodiment>
FIG. 18 is a configuration diagram illustrating an example of a ventilation device 1L according to the twelfth embodiment. A ventilator 1L according to the twelfth embodiment includes an air supply passage that bypasses the indirect evaporative cooling unit 4 in the ventilator 1L that includes the dehumidifying unit 33 and the heat exchange unit 31. Note that in the ventilation device 1L of the twelfth embodiment, the same components as those of the ventilation device 1J of the tenth embodiment are denoted by the same reference numerals.

  The ventilator 1L passes through the air supply fan 2, the dehumidification flow path 35a of the dehumidification unit 33, the first flow path 32a of the heat exchange element 32, and the product air flow path 11b of the indirect vaporization element 11 from the outside air suction port 5. An air supply passage 9 </ b> L communicating with the air outlet 6 is provided. The first exhaust flow path 10P and the second exhaust flow path 10Q have the same configuration as the ventilation device 1J of the tenth embodiment.

  Further, the ventilator 1L includes a bypass passage 10T that branches from the air supply passage 9L on the upstream side of the indirect evaporative cooling unit 4 and communicates with the air supply outlet 6 by bypassing the indirect evaporative cooling unit 4.

  The bypass flow path 10 </ b> T includes an air supply flow rate adjustment damper 18. The flow rate of the air flowing through the bypass passage 10T is adjusted by adjusting the opening degree of the supply air flow adjustment damper 18. Thereby, the flow rate of the air supplied to the supply air outlet 6 by bypassing the indirect vaporization cooling unit 4 is adjusted.

  Note that the air supply flow path 9L includes the air purifying filter 16 on the upstream side of the dehumidifying unit 33, for example.

<Operation | movement of 1 L of ventilation apparatus of 12th Embodiment>
Next, the operation of the ventilator 1L according to the twelfth embodiment will be described with reference to FIG. In the ventilator 1L, when the air supply fan 2 is driven, an air flow toward the air supply outlet 6 is generated in the air supply passage 9L. As a result, the outside air OA is sucked from the outside air inlet 5 and passes through the dehumidifying channel 35a of the dehumidifying unit 33, the first channel 32a of the heat exchange element 32, and the product air channel 11b of the indirect vaporizing element 11 to supply air. The air supply SA is supplied to the room from the air outlet 6.

  Further, when the exhaust fan 3 is driven, an air flow toward the exhaust outlet 8 is generated in the first exhaust passage 10P and the second exhaust passage 10Q. As a result, the return air RA from the room is sucked in from the return air suction port 7, passes through the working air flow path 11 a of the indirect vaporization element 11, and is discharged to the outside as the exhaust air EA from the exhaust air outlet 8. Further, a part of the return air RA passes through the second flow path 32b of the heat exchange element 32 and the regeneration flow path 35a of the dehumidifying unit 33, and is discharged to the outdoors from the exhaust outlet 8 as exhaust EA.

  Therefore, in the ventilator 1L, the outside air OA becomes the product air PA, and the return air RA becomes the working air WA.

  In the dehumidifying unit 33, the outside air OA passing through the dehumidifying channel 35a is dehumidified. However, since the dehumidification rotor 36 is heated by the regeneration air heated by the heater 37 on the regeneration channel 35b side, the temperature of the outside air OA passing through the dehumidification channel 35a rises.

  In the heat exchange element 32, heat exchange is performed between the outside air OA passing through the first flow path 32a and the return air RA passing through the second flow path 32b. By using the ventilator 1L in the summer, the indoor temperature is lowered, and the temperature of the return air RA is lower than the temperature of the outside air OA.

  Therefore, the temperature of the outside air OA that has passed through the first flow path 32a of the heat exchange element 32 decreases, and the temperature of the return air RA that has passed through the second flow path 32b increases.

  As a result, the outside air OA dehumidified and heated by passing through the dehumidifying flow path 35a of the dehumidifying unit 33 passes through the first flow path 32a of the heat exchange element 32, so that the humidity does not change and the temperature decreases.

  As described above, in the indirect vaporization element 11, the working air WA is cooled by the heat of vaporization of water, and the product air PA is cooled by the cold air of the working air WA, so the outside air OA that has passed through the product air flow path 11b. The temperature drops without changing the humidity (absolute humidity).

  Therefore, the outside air OA that has passed through the product air flow path 11b of the indirect vaporization element 11 is blown out as the supply air SA from the supply air outlet 6 so that the indoor temperature can be lowered.

  Here, the humidity and temperature of the outside air OA passing through the product air flow path 11 b of the indirect vaporization element 11 are lowered by the dehumidifying unit 33 and the heat exchange unit 31 in the previous stage. Accordingly, as described with reference to FIGS. 5 and 7, if the input humidity and the input temperature of the product air PA are low, the outlet temperature of the product air PA is lowered. Therefore, the dehumidifying unit 33 and the heat are disposed in front of the indirect evaporative cooling unit 4. By arranging the replacement unit 31 and lowering the input humidity and the input temperature of the product air PA, the outlet temperature of the product air PA can be efficiently lowered and the supply air temperature can be controlled.

  Moreover, the indoor temperature can be lowered by using the ventilator 1L in summer. Therefore, the temperature of the return air RA is also low. As described in FIG. 5, when the input temperature of the working air WA is low, the outlet temperature of the product air PA is lowered. Therefore, the outlet temperature of the product air PA is efficiently used by using the return air RA as the working air WA. The supply air temperature can be controlled by lowering the value.

  In the ventilator 1L, the flow rate of the air flowing through the bypass passage 10T is adjusted by adjusting the opening of the supply air flow adjustment damper 18.

  Thereby, the flow rate of the air supplied to the supply air outlet 6 by bypassing the indirect vaporization cooling unit 4 is adjusted.

  Therefore, by operating the air supply flow rate adjustment damper 18 and adjusting the flow rate of the air flowing through the bypass flow path 10T, the air cooled through the indirect evaporative cooling unit 4 and the indirect evaporative cooling unit 4 are bypassed. The mixing ratio of the uncooled air is controlled, and the supply air temperature from the supply air outlet 6 is controlled.

  Note that the air (outside air OA) bypassing the indirect evaporative cooling unit 4 is dehumidified by the dehumidifying unit 33 and cooled by the heat exchange unit 31, so the humidity of the supply air SA does not increase.

  The ventilator 1L includes a dehumidification unit 33 and a heat exchange unit 31, and uses the outside air OA dehumidified by the dehumidification unit 33 and cooled by the heat exchange unit 4 and the indoor cooled return air RA in the indirect evaporative cooling unit 4. By doing so, the cooling capacity is improved. Further, by using the return air RA, it is possible to cool and take in the outside air while exhausting indoor air to the outdoors, and the ventilator 1L has a function of performing cooling while performing ventilation.

  Then, by adjusting the flow rate of the return air RA and the flow rate of the supply air SA, it is possible to perform a ventilation operation in which the room air is replaced in a predetermined time. For this reason, in the ventilator 1L, the temperature is controlled by the flow rate of the working air WA and the flow rate of the product air PA. Therefore, the ventilation operation and the cooling are performed so that a desired cooling temperature can be obtained and a predetermined ventilation amount can be secured. Control that links the operations is performed.

<Variation of ventilation device of each embodiment>
In the ventilator 1 of each embodiment described above, the example in which the supply air flow adjustment damper 14 and the exhaust flow adjustment damper 15 are arranged on the upstream side of the indirect evaporative cooling unit 4 has been described. You may arrange in.

  Further, the return air RA may be communicated with the outside air inlet 5 in order to use a part of the return air RA on the supply side. As described above, since the return air RA is air-conditioned and cooled in the summer, by using a part of the return air RA as a supply air, the indirect evaporative cooling unit 4 can input the product air PA and the like. Input humidity decreases and cooling capacity improves.

  Further, in addition to the air cleaning filter 16, an ion generator or an ozone generator may be provided as an air cleaning device. For example, the ion generator has a function of generating positive ions and negative ions, supplying approximately the same number of positive ions and negative ions, and supplying only negative ions or more negative ions than positive ions.

  When such an ion generator is provided in the supply air outlet 6, the supply air SA containing substantially the same number of positive ions and negative ions is supplied to the living room or the like, and it can be sterilized by preventing generation of mold and the like. If negative ions are supplied, a relaxing effect can be obtained.

  Further, by disposing the ion generator on the upstream side of the air supply flow path 9 such as the upstream side of the indirect vaporization unit 4, not only the living room but also the inside of the apparatus can be sterilized.

  Furthermore, the indirect evaporative cooling unit 4, the air supply fan 2, the exhaust fan 3, the heat exchange unit 31, and the dehumidifying unit 33 do not have to be in the same casing, and the fan is also used as a fan of another device. Also good.

<Ventilation device with heat exchange unit>
In the ventilators of the fourth to sixth embodiments described above and the ventilators of the tenth to twelfth embodiments, a heat exchange element 32 that performs sensible heat (temperature) exchange is provided as the heat exchange unit 31. However, in addition to sensible heat exchange, a so-called total heat exchange element that performs latent heat (humidity) exchange may be provided.

  When total heat exchange is performed between the outside air OA and the return air RA, the temperature and humidity of the return air RA are lower than the temperature and humidity of the outside air OA in the summer. Increases temperature and humidity.

  In the configuration in which the outside air OA cooled by the heat exchange unit 31 is used as the product air PA of the indirect vaporization element 11, like the ventilation device 1D of the fourth embodiment and the ventilation device 1J of the tenth embodiment, By using the total heat exchange element, the input temperature and input humidity of the product air PA can be lowered, the outlet temperature of the product air PA can be efficiently lowered, and the temperature of the supply air SA can be controlled. Cooling capacity is improved.

  Further, like the ventilator 1E of the fifth embodiment and the ventilator 1K of the eleventh embodiment, the outside air OA cooled by the heat exchange unit 31 is converted into the product air PA and the working air WA of the indirect vaporization element 11. In the configuration to be used, the total heat exchange element can be used to lower the input temperature and the input humidity of both the product air PA and the working air WA, and more efficiently lower the outlet temperature of the product air PA. The temperature of the supply air SA can be controlled, and the cooling capacity is improved.

<Variation of ventilation device with dehumidifying unit>
In the ventilator including the dehumidifying unit 33 described in the seventh to twelfth embodiments, the humidity of the air passing through the dehumidifying unit 33 can be controlled by controlling the rotational speed of the dehumidifying rotor 36.

  FIG. 19 is a graph showing the relationship between the rotational speed of the dehumidifying rotor 36 and the outlet temperature of the product air PA. As shown in FIG. 19, it can be seen that the amount of dehumidification increases as the rotational speed of the dehumidification rotor 36 increases. Thereby, the humidity of the air output from the dehumidifying unit 33 is controlled by changing the rotational speed of the dehumidifying rotor 36.

  As described in FIG. 7, in the heat exchange element 11, when the input humidity of the product air PA and the working air WA is lowered, the outlet temperature of the product air PA is lowered.

  In the configuration in which the outside air OA dehumidified by the dehumidifying unit 33 is used as the product air PA of the indirect vaporizing element 11, such as the ventilator 1G of the seventh embodiment and the ventilator 1J of the tenth embodiment, dehumidification By providing speed control means for controlling the rotational speed of the rotor 36, the input humidity of the product air PA can be controlled.

  For example, when the rotational speed of the dehumidifying rotor 36 is increased, the input humidity of the product air PA is lowered, and therefore the outlet temperature of the product air PA can be lowered as described with reference to FIG. Therefore, the temperature of the supply air SA can be lowered. Further, when the rotational speed of the dehumidifying rotor 36 is lowered, the input humidity of the product air PA increases, so that the outlet temperature of the product air PA can be increased. Therefore, the temperature of the supply air SA can be increased.

  Further, like the ventilation device 1H of the eighth embodiment and the ventilation device 1K of the eleventh embodiment, the outside air OA dehumidified by the dehumidification unit 33 is used as the product air PA and the working air WA of the indirect vaporization element 11. In the configuration to be used, the input humidity of the product air PA and the working air WA can be controlled by controlling the rotational speed of the dehumidifying rotor 36.

  Since the input humidity of both the product air PA and the working air WA can be controlled, the outlet temperature of the product air can be controlled more efficiently.

  Further, temperature control can be performed without changing the return air flow rate or the supply air flow rate, and a ventilation amount for replacing room air in a predetermined time can be secured.

  In addition, you may combine control of the supply air temperature by rotation control of the dehumidification rotor 36, and control of the supply air temperature by flow control by a damper etc.

  Further, a dehumidification control means for controlling the dehumidification amount of the dehumidification rotor 36 by adjusting the temperature of the regeneration heater 37 of the dehumidification rotor 36 is provided so as to control the humidity of the air supplied to the indirect evaporative cooling unit 4. good.

<Other variations of ventilation device>
FIG. 20 is a configuration diagram illustrating an example of a ventilation device 1M according to the thirteenth embodiment. Here, in the ventilation device 1M according to the thirteenth embodiment, the same components as those in the ventilation device 1A according to the first embodiment are denoted by the same reference numerals.

  The ventilation device 1M includes an air supply fan 2 and an indirect evaporative cooling unit 4, and passes through the product air flow path 11b of the indirect vaporization element 11 that constitutes the air supply fan 2 and the indirect evaporative cooling unit 4 from the outside air intake port 5. An air supply channel 9M communicating with the air outlet 6 is provided.

  Further, the ventilation device 1M includes an exhaust passage 10U that branches from the supply passage 9M downstream from the supply fan 2, passes through the working air passage 11a of the indirect vaporization element 11, and communicates with the exhaust outlet 8.

  The supply air flow path 9M includes a supply air flow rate adjustment damper 14 on the downstream side of the branch position with the exhaust flow path 10U, for example, on the upstream side of the indirect evaporative cooling unit 4. Further, the exhaust flow path 10U includes an exhaust flow rate adjustment damper 15 on the downstream side of the branch position with the supply air flow path 9M, for example, on the upstream side of the indirect evaporative cooling unit 4.

  By adjusting the opening degree of the air supply flow rate adjustment damper 14, the flow rate of the air flowing through the air supply channel 9M is adjusted. Thereby, the flow volume of the product air PA which flows through the product air flow path 11b of the indirect vaporization element 11 is adjusted.

  Further, by adjusting the opening degree of the exhaust flow rate adjustment damper 15, the flow rate of the air flowing through the exhaust flow path 10U is adjusted. Thereby, the flow volume of the working air WA which flows through the working air flow path 11a of the indirect vaporization element 11 is adjusted.

  Next, operation | movement of the ventilation apparatus 1M of 13th Embodiment is demonstrated. In the ventilator 1M, when the air supply fan 2 is driven, an air flow toward the air supply outlet 6 is generated in the air supply passage 9M. As a result, the outside air OA is sucked from the outside air suction port 5, passes through the product air flow path 11 b of the indirect vaporization element 11, and is supplied indoors as the supply air SA from the supply air outlet 6.

  When the air supply fan 2 is driven, an air flow toward the exhaust outlet 8 is generated in the exhaust flow path 10U branched from the air supply flow path 9M. Thereby, a part of the outside air OA passes through the working air flow path 11a of the indirect vaporization element 11, and is discharged to the outside as the exhaust EA from the exhaust outlet 8.

  Therefore, in the ventilator 1M, the outside air OA becomes the product air PA and the working air WA.

  As described above, in the indirect vaporization element 11, the working air WA is cooled by the heat of vaporization of water, and the product air PA is cooled by the cold heat of the working air WA. The temperature of the OA decreases without changing the humidity (absolute humidity).

  Therefore, the outside air OA that has passed through the product air flow path 11b of the indirect vaporization element 11 is blown out as the supply air SA from the supply air outlet 6 so that the indoor temperature can be lowered.

  In the ventilation device 1M, the flow rate of the product air PA passing through the product air flow path 11b of the indirect vaporization element 11 is adjusted by the opening degree of the supply air flow rate adjustment damper 14. Further, the flow rate of the working air WA passing through the working air flow path 11a of the indirect vaporization element 11 is adjusted by the opening degree of the exhaust flow rate adjustment damper 15.

  Thus, either or both of the supply air flow adjustment damper 14 and the exhaust flow adjustment damper 15 are operated to adjust the flow rate of the product air PA, the flow rate of the working air WA, or both of the flow rates of FIG. As described with reference to FIG. 4, the outlet temperature of the product air PA in the indirect vaporization element 11 is controlled. Therefore, the supply air temperature from the supply air outlet 6 is controlled.

  Further, the flow rates of the product air PA and the working air WA can be adjusted by changing the rotational speed of the air supply fan 2 and controlling the air volume.

  Therefore, the outlet temperature of the product air PA in the indirect vaporization element 11 is controlled by combining the control of the opening degree of at least one of the supply air flow adjustment damper 14 and the exhaust flow adjustment damper 15 and the control of the air volume of the supply air fan 2. The supply air temperature from the supply air outlet 6 is controlled.

  Although the ventilator 1M alone does not have a function of ventilation, it has a function of air supply and air conditioning. Therefore, a 24-hour ventilator can be configured in combination with another exhaust device having a simple configuration.

  In other words, if an exhaust system is already present in the building, an air conditioning system capable of 24-hour ventilation and air conditioning can be constructed at low cost.

  FIG. 21 is a configuration diagram illustrating an example of a ventilation device 1N according to the fourteenth embodiment. Here, in the ventilation device 1N according to the fourteenth embodiment, the same components as those in the ventilation device 1A according to the first embodiment will be described with the same reference numerals.

  The ventilation device 1N includes an exhaust fan 3 and an indirect evaporative cooling unit 4, and passes from the return air intake port 7 to the supply air outlet 6 through the product air flow path 11b of the indirect evaporative element 11 constituting the indirect evaporative cooling unit 4. A supply air flow path 9N is provided.

  Further, the ventilation device 1N includes an exhaust passage 10V that communicates from the return air suction port 7 through the working air passage 11a of the indirect vaporization element 11 and the exhaust fan 3 to the exhaust outlet 8.

  The air supply passage 9N includes an air supply flow rate adjustment damper 14 on the upstream side of the indirect evaporative cooling unit 4, for example. Further, the exhaust passage 10 </ b> V includes an exhaust flow rate adjustment damper 15 on the upstream side of the indirect evaporative cooling unit 4, for example.

  By adjusting the opening degree of the supply air flow adjustment damper 14, the flow rate of the air flowing through the supply air passage 9N is adjusted. Thereby, the flow volume of the product air PA which flows through the product air flow path 11b of the indirect vaporization element 11 is adjusted.

  Further, the flow rate of the air flowing through the exhaust flow path 10V is adjusted by adjusting the opening degree of the exhaust flow rate adjustment damper 15. Thereby, the flow volume of the working air WA which flows through the working air flow path 11a of the indirect vaporization element 11 is adjusted.

  In the ventilation device 1N, an air supply device 41 or the like is connected to the air supply outlet 6 via a duct or the like (not shown). The air supply device 41 is, for example, a device that sucks outside air or air in a building and supplies the air into the room. The air supply outlet 6 of the ventilation device 1N is connected to the suction port 41a of the air supply device 41.

  Next, the operation of the ventilation device 1N according to the fourteenth embodiment will be described. In the ventilation device 1N, when the air supply device 41 is driven, an air flow toward the air supply outlet 6 is generated in the air supply passage 9N. As a result, the return air RA is sucked from the return air suction port 7, passes through the product air flow path 11 b of the indirect vaporization element 11, and is supplied into the room as the supply air SA from the supply air outlet 6 through the air supply device 41. The

  When the exhaust fan 3 is driven, an air flow toward the exhaust outlet 8 is generated in the exhaust passage 10V. As a result, the return air RA passes through the working air flow path 11a of the indirect vaporization element 11, and is discharged from the exhaust outlet 8 to the outside as the exhaust EA.

  Therefore, in the ventilation device 1N, the return air RA becomes the product air PA and the working air WA.

  As described above, in the indirect vaporization element 11, the working air WA is cooled by the heat of vaporization of water, and the product air PA is cooled by receiving the cold heat of the working air WA. Therefore, the return through the product air flow path 11b is performed. The air RA does not change in humidity (absolute humidity), and the temperature decreases.

  Therefore, the room temperature can be lowered by blowing the return air RA that has passed through the product air flow path 11b of the indirect vaporization element 11 from the supply air outlet 6 as the supply air SA.

  In the ventilation device 1N, the flow rate of the product air PA passing through the product air flow path 11b of the indirect vaporization element 11 is adjusted by the opening degree of the supply air flow rate adjustment damper 14. Further, the flow rate of the working air WA passing through the working air flow path 11a of the indirect vaporization element 11 is adjusted by the opening degree of the exhaust flow rate adjustment damper 15.

  Thus, either or both of the supply air flow adjustment damper 14 and the exhaust flow adjustment damper 15 are operated to adjust the flow rate of the product air PA, the flow rate of the working air WA, or both of the flow rates of FIG. As described with reference to FIG. 4, the outlet temperature of the product air PA in the indirect vaporization element 11 is controlled. Therefore, the supply air temperature from the supply air outlet 6 is controlled.

  Further, the flow rate of the working air WA can be adjusted by changing the rotational speed of the exhaust fan 3 to control the air volume.

  Therefore, the outlet temperature of the product air PA in the indirect vaporization element 11 is controlled by combining the control of the opening degree of at least one of the supply air flow adjustment damper 14 and the exhaust flow adjustment damper 15 and the control of the air volume of the exhaust fan 3. The supply air temperature from the supply air outlet 6 is controlled.

  The ventilation device 1N can constitute a 24-hour ventilation device in combination with the air supply device 41 having a simple configuration. That is, when an air supply device already exists in a building, an air conditioning system capable of 24-hour ventilation and air conditioning can be constructed at low cost.

  FIG. 22 is a configuration diagram illustrating an example of a ventilation device 1P according to the fifteenth embodiment. Here, in the ventilation device 1P according to the fifteenth embodiment, the same components as those in the ventilation device 1D according to the fourth embodiment will be described with the same numbers.

  The ventilation device 1 </ b> P includes a heat exchange unit 31 and an indirect evaporative cooling unit 4, and configures the first flow path 32 a of the heat exchange element 32 and the indirect evaporative cooling unit 4 that constitute the heat exchange unit 31 from the outside air inlet 5. An air supply passage 9P that passes through the product air passage 11b of the indirect vaporization element 11 and communicates with the air supply outlet 6 is provided.

  The ventilator 1 </ b> P exchanges heat from the return air suction port 7 with the first exhaust flow channel 10 </ b> W communicating with the exhaust air outlet 8 through the working air flow channel 11 a of the indirect vaporization element 11 from the return air suction port 7. A second exhaust passage 10X that passes through the second passage 32b of the element 32 and communicates with the exhaust outlet 8 is provided.

  In the ventilation device 1P, an air supply device 41 and the like are connected to the air supply outlet 6 via a duct (not shown). Further, an exhaust device 42 and the like are connected to the return air suction port 7 through a duct and the like (not shown). The exhaust device 42 is, for example, a device that sucks air in a building and exhausts the air outdoors. The return air suction port 7 of the ventilation device 1P is connected to the air outlet 42a of the exhaust device 42.

  Next, operation | movement of the ventilation apparatus 1P of 15th Embodiment is demonstrated. When the air supply device 41 is driven, the air flow toward the air supply outlet 6 is generated in the air supply passage 9P. As a result, the outside air OA is sucked from the outside air suction port 5, passes through the first flow path 32 a of the heat exchange element 32 and the product air flow path 11 b of the indirect vaporization element 11, and passes through the air supply device 41 from the air supply outlet 6. And supplied to the room as supply air SA.

  When the exhaust device 42 is driven, an air flow toward the exhaust outlet 8 is generated in the first exhaust passage 10W and the second exhaust passage 10X. Thus, the return air RA passes through the working air flow path 11a of the indirect vaporization element 11 via the exhaust device 42, and is discharged to the outside as the exhaust EA from the exhaust outlet 8. Further, a part of the return air RA passes through the second flow path 32b of the heat exchange element 32 through the exhaust device 42, and is discharged to the outside from the exhaust outlet 8 as exhaust EA.

  Therefore, in the ventilator 1P, the outside air OA becomes the product air PA, and the return air RA becomes the working air WA.

  As described above, in the indirect vaporization element 11, the working air WA is cooled by the heat of vaporization of water, and the product air PA is cooled by the cold heat of the working air WA. The temperature of the OA decreases without changing the humidity (absolute humidity).

  Therefore, the outside air OA that has passed through the product air flow path 11b of the indirect vaporization element 11 is blown out as the supply air SA from the supply air outlet 6 so that the indoor temperature can be lowered.

  In the ventilation device 1 </ b> P, the air supply device 41 adjusts the flow rate of the product air PA that passes through the product air flow path 11 b of the indirect vaporization element 11. Further, the exhaust device 42 adjusts the flow rate of the working air WA that passes through the working air flow path 11a of the indirect vaporization element 11.

  As a result, the outlet temperature of the product air PA in the indirect vaporization element 11 is controlled by controlling the flow rate in one or both of the air supply device 41 and the exhaust device 42 as described in FIGS. The Therefore, the supply air temperature from the supply air outlet 6 is controlled.

  As mentioned above, building ventilation is obligated by the Building Standards Act, so that ventilation equipment that can supply and exhaust air with one unit, ventilation equipment that can only exhaust or supply air (referred to as an intermediate duct fan, etc.) Attached to the building. By connecting with such other ventilators, a configuration that includes only the exhaust fan 3 as a fan, such as the ventilator 1N, or a configuration that does not include both an air supply fan and an exhaust fan, such as the ventilator 1P, It is also possible to reduce the product cost by not mounting a fan.

<Configuration example of a ventilator that reuses working air>
FIG. 23 is a configuration diagram illustrating an example of a ventilation device 1Q according to the sixteenth embodiment. The ventilator 1 </ b> Q exhausts the working air WA of the indirect vaporization element 11 constituting the indirect vaporization cooling unit 4 through the heat exchange unit 31. In addition, as a whole structure of a ventilator, ventilator 1D of 4th Embodiment is demonstrated to an example.

  The ventilation device 1Q includes an air supply fan 2, an exhaust fan 3, a heat exchange unit 31, and an indirect evaporative cooling unit 4. The outside air OA is used as the product air PA of the indirect vaporization element 11, and the return air RA is used as the working air WA. To do.

  The air supply flow path 9D communicates from the air supply fan 2 through the first flow path 32a of the heat exchange element 32 and the product air flow path 11b of the indirect vaporization element 11 to the air supply outlet 6.

  The ventilation channel 10 </ b> Y communicates from the return air suction port 7 to the exhaust air outlet 8 through the working air channel 11 a of the indirect vaporization element 11, the second channel 32 b of the heat exchange element 32, and the exhaust fan 3. In addition, the part shown with the broken line of the exhaust flow path 10Y is formed along the side wall of a case, for example so that it may become independent of the air supply flow path 9D.

  The air supply passage 9D includes, for example, an air supply flow rate adjustment damper 14 on the upstream side of the heat exchange unit 31, and the product air flow passage 11b of the indirect vaporization element 11 is adjusted by adjusting the opening of the air supply flow adjustment damper 14. The flow rate of the flowing product air PA is adjusted.

  The exhaust flow path 10Y includes an exhaust flow rate adjustment damper 15 on the upstream side of the indirect vaporization cooling unit 4, for example, and flows through the working air flow path 11a of the indirect vaporization element 11 by adjusting the opening degree of the exhaust flow rate adjustment damper 15. The flow rate of the working air WA is adjusted.

  Next, the operation of the ventilation device 1Q will be described. In the ventilation device 1Q, when the air supply fan 2 is driven, an air flow toward the air supply outlet 6 is generated in the air supply passage 9D. As a result, the outside air OA is sucked from the outside air suction port 5, passes through the air purification filter 16, the first flow path 32 a of the heat exchange element 32, and the product air flow path 11 b of the indirect vaporization element 11, and from the supply air outlet 6. The air supply SA is supplied indoors.

  Further, when the exhaust fan 3 is driven, an air flow toward the exhaust outlet 8 is generated in the exhaust passage 10Y. As a result, the return air RA from the room is sucked from the return air suction port 7, passes through the working air flow path 11 a of the indirect vaporization element 11 and the second flow path 32 b of the heat exchange element 32, and is exhausted from the exhaust air outlet 8. It is discharged outdoors as EA.

  Therefore, in the ventilation device 1Q, the outside air OA becomes the product air PA, and the return air RA becomes the working air WA.

  As described above, in the indirect vaporization element 11, the working air WA is cooled by the heat of vaporization of water, and the product air PA is cooled by the cold air of the working air WA, so the outside air OA that has passed through the product air flow path 11b. The temperature drops without changing the humidity (absolute humidity). Further, the return air RA passing through the working air flow path 11a increases in humidity but decreases in temperature.

  Therefore, the outside air OA that has passed through the product air flow path 11b of the indirect vaporization element 11 is blown out as the supply air SA from the supply air outlet 6 so that the indoor temperature can be lowered.

  In the heat exchange element 32, heat exchange is performed between the outside air OA passing through the first flow path 32a and the return air RA passing through the second flow path 32b. The return air RA is lowered in temperature by passing through the working air flow path 11a of the indirect vaporization element 11, and is lower than the temperature of the outside air OA.

  Therefore, the temperature of the outside air OA that has passed through the first flow path 32a of the heat exchange element 32 decreases. Here, the return air RA becomes high humidity by passing through the working air flow path 11a of the indirect vaporization element 11, but since the heat exchange element 32 is a heat exchange element that performs sensible heat exchange, the humidity of the outside air OA changes. do not do.

  As a result, the return air RA that has passed through the working air flow path 11a of the indirect vaporization element 11 is passed through the second flow path 32b of the heat exchange element 32, so that the outside air OA can be efficiently removed at the front stage of the indirect vaporization cooling unit 4. Can be cooled.

  As described with reference to FIG. 5, when the input temperature of the product air PA is low, the outlet temperature of the product air PA is lowered. Therefore, the heat exchange unit 31 is disposed in the front stage of the indirect evaporative cooling unit 4 and the working air WA is heated. By passing the replacement unit 31, the input temperature of the product air PA is efficiently lowered, and the cooling capacity is improved.

  In the ventilation device 1Q, the flow rate of the product air PA passing through the product air flow path 11b of the indirect vaporization element 11 is adjusted by the opening degree of the supply air flow rate adjustment damper 14. Further, the flow rate of the working air WA passing through the working air flow path 11a of the indirect vaporization element 11 is adjusted by the opening degree of the exhaust flow rate adjustment damper 15.

  Accordingly, when one or both of the supply air flow adjustment damper 14 and the exhaust flow adjustment damper 15 are operated to increase the flow rate of the working air WA, for example, the outlet temperature of the product air PA in the indirect vaporization element 11 is increased. By reducing, the supply air temperature from the supply air outlet 6 can be lowered.

  Further, when the flow rate of the working air WA is decreased, the outlet temperature of the product air PA in the indirect vaporization element 11 is increased, so that the supply air temperature from the supply air outlet 6 can be increased.

  Further, by controlling the air volume of either the air supply fan 2 and the exhaust fan 3 or both the air supply fan 2 and the exhaust fan 3, the outlet temperature of the product air PA in the indirect vaporization element 11 is controlled, and the air supply The supply air temperature from the blower outlet 6 is controlled.

  Further, even if the control of the opening degree of at least one of the supply air flow adjustment damper 14 and the exhaust flow adjustment damper 15 and the control of the air volume of at least one of the supply air fan 2 and the exhaust fan 3 are combined, the product in the indirect vaporization element 11 The outlet temperature of the air PA is controlled, and the supply air temperature from the supply air outlet 6 is controlled.

  FIG. 24 is a configuration diagram illustrating an example of a ventilation device 1R according to the seventeenth embodiment. The ventilation device 1R uses the working air WA of the indirect vaporization element 11 constituting the indirect vaporization cooling unit 4 as the supply air SA. In addition, as a whole structure of a ventilator, the ventilator 1E of 5th Embodiment is demonstrated to an example.

  The ventilation device 1R includes an air supply fan 2, an exhaust fan 3, a heat exchange unit 31, and an indirect evaporative cooling element 4, and uses outside air OA as product air PA and working air WA of the indirect evaporative element 11.

  The first air supply passage 9R passes from the outside air inlet 5 through the air supply fan 2, the first flow passage 32a of the heat exchange element 32 and the product air flow passage 11b of the indirect vaporization element 11 to the air supply outlet 6. Communicate.

  The second air supply passage 9S branches off from the first air supply passage 9R on the downstream side of the heat exchange unit 31, passes through the working air passage 11a and the dehumidifier 44 of the indirect vaporization element 11, and passes through the air supply outlet 6. To communicate.

  The exhaust passage 10 </ b> H communicates from the return air inlet 7 to the exhaust outlet 8 through the second passage 32 b of the heat exchange element 32 and the exhaust fan 3.

  The dehumidifying device 44 includes a permeable membrane filter and the like, separates water and air, and dehumidifies the air passing through the second air supply passage 9S.

  The first air supply passage 9R includes, for example, an air supply flow rate adjustment damper 14 on the upstream side of the heat exchange unit 31, and the product air flow of the indirect vaporization element 11 is adjusted by adjusting the opening degree of the air supply flow rate adjustment damper 14. The flow rate of the product air PA flowing through the path 11b is adjusted.

  The second air supply passage 9S includes an exhaust flow rate adjustment damper 15 on the upstream side of the indirect vaporization cooling unit 4, for example, and the working air of the indirect vaporization element 11 is adjusted by adjusting the opening degree of the exhaust flow rate adjustment damper 15. The flow rate of the working air WA flowing through the flow path 11a is adjusted.

  Next, the operation of the ventilation device 1R according to the seventeenth embodiment will be described. In the ventilator 1R, when the air supply fan 2 is driven, an air flow toward the air supply outlet 6 is generated in the first air supply passage 9R and the second air supply passage 9S. As a result, the outside air OA is sucked from the outside air inlet 5, passes through the first channel 32 a of the heat exchange element 32 and the product air channel 11 b of the indirect vaporization element 11, and is supplied indoors as the supply air SA from the supply air outlet 6. To be supplied.

  A part of the outside air OA that has passed through the heat exchange unit 31 passes through the working air flow path 11a of the indirect vaporization element 11 and the dehumidifier 44, and is supplied to the room as the supply air SA from the supply air outlet 6.

  Further, when the exhaust fan 3 is driven, an air flow toward the exhaust outlet 8 is generated in the exhaust passage 10H. As a result, the return air RA from the room is sucked from the return air suction port 7, passes through the second flow path 32 b of the heat exchange element 32, and is discharged to the outside as the exhaust air EA from the exhaust air outlet 8.

  Therefore, in the ventilator 1R, the outside air OA becomes the product air PA and the working air WA.

  In the heat exchange element 32, heat exchange is performed between the outside air OA passing through the first flow path 32a and the return air RA passing through the second flow path 32b. By using the ventilator 1R in summer, the temperature of the room is lowered, and the temperature of the return air RA is lower than the temperature of the outside air OA.

  Therefore, the temperature of the outside air OA that has passed through the first flow path 32a of the heat exchange element 32 decreases, and the temperature of the return air RA that has passed through the second flow path 32b increases.

  As described above, in the indirect vaporization element 11, the working air WA is cooled by the heat of vaporization of water, and the product air PA is cooled by the cold air of the working air WA, so the outside air OA that has passed through the product air flow path 11b. The temperature drops without changing the humidity (absolute humidity). Further, the outside air OA that has passed through the working air flow path 11a increases in humidity but decreases in temperature.

  Therefore, the outside air OA that has passed through the product air flow path 11b of the indirect vaporization element 11 is blown out as the supply air SA from the supply air outlet 6 so that the indoor temperature can be lowered.

  Further, the outside air OA that has passed through the working air flow path 11a of the indirect vaporization element 11 becomes high humidity, but by being dehumidified through the dehumidifying device 44, it can be used as the supply air SA and has passed through the product air flow path 11b. By blowing out as the supply air SA from the supply air outlet 6 together with the outside air OA, the room temperature can be lowered without increasing the humidity.

  Here, the outside air OA is supplied to both the product air passage 11b and the working air passage 11a of the indirect vaporization element 11, and the temperature of the outside air OA is lowered by the heat exchange unit 31 in the previous stage. Thereby, the outlet temperature of the product air PA can be efficiently lowered and the supply air temperature can be controlled. Furthermore, the cooling capacity is improved by dehumidifying the cooled working air WA and using it as the supply air SA.

  In the ventilation device 1 </ b> R, the flow rate of the product air PA passing through the product air flow path 11 b of the indirect vaporization element 11 is adjusted by the opening degree of the supply air flow rate adjustment damper 14. Further, the flow rate of the working air WA passing through the working air flow path 11a of the indirect vaporization element 11 is adjusted by the opening degree of the exhaust flow rate adjustment damper 15.

  Accordingly, when either or both of the supply air flow adjustment damper 14 and the exhaust flow adjustment damper 15 are operated to increase the flow rate of the working air WA, for example, the outlet temperature of the product air PA in the indirect vaporization element 11 is increased. By reducing, the supply air temperature from the supply air outlet 6 can be lowered.

  Further, when the flow rate of the working air WA is decreased, the outlet temperature of the product air PA in the indirect vaporization element 11 is increased, so that the supply air temperature from the supply air outlet 6 can be increased.

<Configuration example of ventilator using exhaust heat for dehumidifying unit>
FIG. 25 is a configuration diagram illustrating an example of a ventilation device 1S according to the eighteenth embodiment. The ventilator 1S uses exhaust heat as a heat source for the regeneration air. In addition, as a whole structure of a ventilator, the ventilator 1G of 7th Embodiment is demonstrated to an example.

  The ventilation device 1S includes a dehumidifying unit 33. The dehumidifying unit 33 includes a heater 37 that heats air (regeneration air) passing through the regeneration channel 35 b, and uses exhaust heat as a heat source of the heater 37.

  As an exhaust heat generation source, for example, an air conditioner outdoor unit 38 is used. A hot air collector 38a is attached to the outdoor unit 38, and the hot air is sent to the heater 37 through the duct 39a and the like.

  The heater 37 passes the warm air from the outdoor unit 38 through, for example, a pipe wound in a coil shape, and heats the regenerated air passing through the regeneration flow path 35b. The warm air that has passed through the heater 37 is exhausted by the exhaust device 42 through the duct 39b and the like.

  The operation of the ventilation device 1S is the same as that of the ventilation device 1G of the seventh embodiment. A part of the return air RA is used as regeneration air. However, by using the exhaust heat of the outdoor unit 38 for heating the regeneration air, it is not necessary to provide the drive source of the heater 37 in the ventilation device 1S. Compared with the case of using an electric heater, power consumption can be suppressed.

  As a heat source for the heater 37, in addition to the exhaust heat of the outdoor unit, hot air or hot water generated by heat for boiling water in a water heater for boiling water with gas or electricity may be used.

<Configuration of main parts of ventilation device of each embodiment>
FIG. 26 is a perspective view showing an example of a main configuration of the ventilator according to each embodiment. For example, as described with reference to FIG. 10 and the like, in the ventilator of the fourth to sixth embodiments including the heat exchange unit 31 and the indirect evaporative cooling unit 4, the heat exchange unit 31 is surrounded by a heat insulating material 51a, The indirect vaporization cooling unit 4 is surrounded by a heat insulating material 51b.

  The heat insulating material 51a and the heat insulating material 51b are made of, for example, polystyrene foam and have a shape in which a flow path is opened, and surround the heat exchange unit 31, the indirect vaporization cooling unit 4, and the like. By surrounding the heat exchange unit 31 and the indirect vaporization cooling unit 41 with a heat insulating material, it is difficult to be affected by the temperature outside the apparatus, and the cooling capacity can be improved.

  Here, the heat exchanging unit 31 and the indirect evaporative cooling unit 4 are surrounded by an independent form of heat insulating material, so that it is possible to improve maintainability during unit replacement. Moreover, the structure which surrounds each unit with one heat insulating material may be sufficient.

  In addition to the heat exchange unit 31 and the indirect evaporative cooling unit 4, the unit enclosed by the heat insulating material may be an air purifier such as an air purifier filter disposed in a flow path through which air passes. As an air cleaning device, an ion generator, an ozone generator, etc. other than an air cleaning filter may be used.

  Moreover, in FIG. 26, although the ventilation apparatus of the 4th-6th embodiment provided with the heat exchange unit 31 and the indirect vaporization cooling unit 4 was demonstrated to the example, the 1st-1st provided with the indirect vaporization cooling unit 4 was demonstrated. The ventilator of the third embodiment, the ventilator of the seventh to ninth embodiments provided with the dehumidifying unit 33 and the indirect evaporative cooling unit 4, and further the dehumidifying unit 33, the heat exchange unit 4 and the indirect evaporative cooling. The ventilators of the tenth to twelfth embodiments provided with the unit 4 can be similarly applied.

  FIG. 27 is a main part configuration diagram of the ventilation device of each embodiment. For example, in the ventilator 1 </ b> D provided with the heat exchange unit 31 and the indirect vaporization cooling unit 4 described with reference to FIG. 10, the diffusion plate 52 is provided in the air supply passage 9 </ b> D between the heat exchange unit 31 and the indirect vaporization cooling unit 4. The diffusion plate 52 agitates the air passing through the air supply passage 9D.

  The air flowing into the heat exchange unit 31 and the indirect evaporative cooling unit 4 flows toward the center, and is less likely to be a uniform flow with respect to each flow path such as the indirect vaporization element 11. For this reason, by providing the diffusion plate 52 in front of the indirect vaporization cooling unit 4 and the like, the air is stirred, and the cooling capacity can be improved by making the flow substantially uniform with respect to each flow path.

  Note that the diffusion plate 52 may be provided in front of the heat exchange unit 31. Further, for example, in the ventilator 1G including the dehumidifying unit 33 and the indirect evaporative cooling unit 4 described with reference to FIG. In addition, a diffusion plate 52 may be provided in front of the dehumidifying unit 33, and is applicable to the ventilator of other embodiments.

  FIG. 28 is another main part configuration diagram of the ventilation device of each embodiment. For example, in the ventilator 1 </ b> D provided with the heat exchange unit 31 and the indirect vaporization cooling unit 4 described in FIG. 10, the heat exchange constituting the heat exchange unit 31 by arranging the heat exchange unit 31 and the indirect vaporization cooling unit 4 in the vicinity. The gap between the outlet of the first flow path 32a of the element 32 and the inlet of the product air flow path 11b of the indirect vaporization element 11 constituting the indirect vaporization cooling unit 4 is made as small as possible.

  If the space between the heat exchange unit 31 and the indirect evaporative cooling unit 4 is wide, the air flowing into the indirect evaporative cooling unit 4 moves toward the center and becomes a uniform flow with respect to each flow path of the indirect evaporative element 11. Hateful. For this reason, the cooling capacity can be improved by arranging the heat exchange unit 31 and the indirect vaporization cooling unit 4 close to each other and making the flow substantially uniform with respect to each flow path.

  The clearance between the heat exchange unit 31 and the indirect evaporative cooling unit 4 is preferably about 5 cm or less. Further, the heat exchange element 32 and the indirect vaporization element 11 may be integrally formed so that the first flow path 32a of the heat exchange element 32 and the product air flow path 11b of the indirect vaporization element 11 communicate with each other.

  Furthermore, if the area of the outlet of the first flow path 32a of the heat exchange element 32 and the inlet of the product air flow path 11b of the indirect vaporization element 11 are the same, the air flow becomes efficient. In addition, since each unit can be reduced in size, the apparatus can be reduced in size.

  FIG. 29 is another configuration diagram of the indirect vaporization element showing the configuration of the main part of the ventilation device of each embodiment. 29A is an external perspective view, FIG. 29B is an exploded perspective view, and FIG. 29C is a cross-sectional view.

  As shown in FIG. 29B, the indirect vaporization element 11 ′ includes a dry cell 21 having a plurality of first flow paths 21b partitioned by a partition 21a and a plurality of second flow paths partitioned by a partition 22a. A wet cell 22 having 22b, and a partition wall 23 for partitioning the dry cell 21 and the wet cell 22. The inlets and outlets of the respective channels are formed on different surfaces, and the first channel 21b and the second channel 22b It is configured to be partially parallel.

  As shown in FIG. 29 (c), the partition wall 23 includes a moisture-proof film 23a formed of a polyethylene film or the like, and a wet layer 23b formed of pulp or the like. The moisture-proof film 23a faces the dry cell 21, and the wet layer 23 b faces the wet cell 22.

  Thereby, in the indirect vaporization element 11 ′, the second flow path 22b becomes the working air flow path 11a shown in FIG. 1 and the like, and the second flow path 21b becomes the product air flow path 11b.

  In the indirect evaporative cooling element 11 ′, when the working air flow path 11a and part of the product air flow path 11b are arranged in parallel, the working air flow path 11a and the product air flow path 11b are in contact with each other via the partition wall 23. Therefore, the cooling air of the working air WA cooled by the heat of vaporization is efficiently transmitted to the product air PA, and the cooling capacity can be improved.

<Example of ventilation equipment installation>
FIG. 30 is a configuration diagram illustrating an example of a building according to the present embodiment, and illustrates an installation example of the ventilation device 1. The ventilation device 1 described with reference to FIG. The building 101 includes a plurality of living rooms 102, a toilet 103, a washroom 104a, a bathroom 104b, and the like. A supply air outlet 6 shown in FIG. Via a duct 106.

  In addition, in FIG. 1 etc., although it is the structure provided with one air supply blower outlet 6, in order to supply air supply SA to the several living room 102, the branch chamber 106a is installed in the middle of the duct 106, 1 The single duct 106 may be branched into a plurality of ducts 106.

  Moreover, the ventilation apparatus 1 may be provided with a plurality of air supply outlets 6, or the ventilation apparatus 1 provided with the plurality of air supply outlets 6 and the branch chamber 106 a may be combined.

  The return air suction port 8 shown in FIG. 1 and the like of the ventilation device 1 is connected to a suction port 107 installed on, for example, the ceiling of the toilet 103 via a duct 107a and the like. The air supplied into the living room 105 is collected at the suction port 107 through the undercut portion and the louver portion of the door, and the return air RA sucked from the return air suction port 8 is the working air as described with reference to FIG. Since it exhausts using it as WA etc., it does not return to a living room. Thereby, an odor can be exhausted. The suction port 107 may be the return air suction port 7 provided on the lower surface of the main body of the ventilation device 1 as shown in FIG. 1, and may further be provided with a plurality of the return air suction ports 7, and the air supply port 105 is provided. You may provide the suction inlet 107 in the living room 102, respectively.

  The outside air inlet 5 shown in FIG. 1 and the like of the ventilator 1 is connected to an inlet 109 provided on a wall surface of the veranda 108 or the like via a duct 109a. The exhaust outlet 8 is connected to an exhaust port 110 provided on a wall surface of the veranda 108 or the like via a duct 110a. Thereby, the ventilator 1 can take in the outside air OA from the outside and exhaust the return air RA from the toilet 103 or the like to the outside as the exhaust EA.

  As shown in FIG. 1 and the like, the ventilation device 1 includes a water supply / drainage device 12 and a drain pan 13 in the indirect evaporative cooling unit 4. In the indirect vaporization cooling unit 4, as described above, the working air WA is cooled by the heat of vaporization of water, so that water is supplied by the water supply / drainage device 12, and water that is not consumed is stored in the drain pan 13. The drain pan 13 and a drain drain port 111 installed on the veranda 108 or the like are connected by a hose 111a so that the water in the drain pan 13 can be drained out of the apparatus by the water supply / drainage device 12 or the like.

  Here, the air supply device 41 connected to the ventilation device 1 </ b> N described in FIG. 21 is provided in, for example, a duct 106 that connects the ventilation device 1 and the air supply port 105. Further, the exhaust device 42 connected to the ventilation device 1P described in FIG. 22 is provided in a duct 107a that connects the ventilation device 1 and the suction port 107, for example.

  FIG. 31 is a configuration diagram illustrating an example of an air supply port. The air supply port 105 is provided with an air supply grill 61 that blows out the air supply SA, a human sensor 62 that detects whether or not there is a person in the living room 102 in which the air supply port 105 is installed, and an air supply port 105. A temperature sensor 63 for detecting the temperature of the living room 102 is provided.

  The air supply port 105 may include an ion generator 64. The ion generator 64 generates positive ions and negative ions and supplies them to the supply air SA. Here, by generating approximately the same number of positive ions and negative ions, the supply air SA including approximately the same number of positive ions and negative ions is supplied to the living room 102. Thereby, generation | occurrence | production of the mold in the living room 102 can be suppressed. Further, negative ions are supplied to the room 102 by generating only negative ions or more negative ions than positive ions. Thereby, a relaxing effect can be obtained in the living room 102.

  The air supply port 105 is provided with a damper for adjusting the air supply flow rate, and when the air supply flow rate is increased or decreased, the air supply amount at the air supply port 105 of the predetermined living room 102 is adjusted arbitrarily or the building You may enable it to secure the ventilation volume in the whole.

<Configuration example of a ventilator that branches the supply air>
FIG. 32 is a configuration diagram illustrating an example of a ventilation device 1T according to a nineteenth embodiment. The ventilation apparatus 1T includes a plurality of air supply outlets 6 and can control the flow rate at each of the air supply outlets 6. In addition, as a whole structure of a ventilator, the ventilator 1A of 1st Embodiment is demonstrated to an example.

  The ventilation device 1T includes a first air supply outlet 6a and a second air supply outlet 6b in this example as the air supply outlet. The ventilation device 1T includes an air supply fan 2, an exhaust fan 3, and an indirect evaporative cooling unit 4, and an air supply flow path 9A passes from the air supply fan 2 through the product air flow path 11b of the indirect vaporization element 11 to the first air flow. The air supply outlet 6a and the second air supply outlet 6b communicate with each other.

  The ventilation flow path 10 </ b> A communicates from the return air suction port 7 to the exhaust air outlet 8 through the working air flow path 11 a of the indirect vaporization element 11 and the exhaust fan 3.

  The air supply passage 9 </ b> A includes an air supply flow rate adjustment damper 14 on the upstream side of the indirect evaporative cooling unit 4, for example. Further, the exhaust passage 10 </ b> A includes an exhaust flow rate adjustment damper 15 on the upstream side of the indirect evaporative cooling unit 4, for example.

  Furthermore, an air supply flow rate adjusting damper 19 is provided in at least one of the first air supply outlet 6a and the second air supply outlet 6b. In this example, an air supply flow rate adjustment damper 19 is provided in the second air supply outlet 6b. By adjusting the opening of the supply air flow adjustment damper 19, the flow rate of the supply air SA flowing through the second supply air outlet 6b is adjusted.

  Next, the operation of the ventilation device 1T will be described. In the ventilator 1T, when the air supply fan 2 is driven, an air flow toward the first air supply outlet 6a and the second air supply outlet 6b is generated in the air supply passage 9A. As a result, the outside air OA is sucked from the outside air suction port 5, passes through the air purification filter 16, the product air flow path 11 b of the indirect vaporization element 11, and from the first supply air outlet 6 a and the second supply air outlet 6 b. The air supply SA is supplied indoors.

  When the exhaust fan 3 is driven, an air flow toward the exhaust outlet 8 is generated in the exhaust passage 10B. As a result, the return air RA from the room is sucked in from the return air suction port 7, passes through the working air flow path 11 a of the indirect vaporization element 11, and is discharged to the outside as the exhaust air EA from the exhaust air outlet 8.

  As described above, in the indirect vaporization element 11, the working air WA is cooled by the heat of vaporization of water, and the product air PA is cooled by the cold air of the working air WA, so the outside air OA that has passed through the product air flow path 11b. The temperature drops without changing the humidity (absolute humidity). Further, the return air RA passing through the working air flow path 11a increases in humidity but decreases in temperature.

  Therefore, the outside air OA that has passed through the product air flow path 11b of the indirect vaporization element 11 is blown out as the supply air SA from the first supply air outlet 6a and the second supply air outlet 6b, thereby lowering the indoor temperature. be able to.

  In the ventilator 1T, the flow rate of the product air PA passing through the product air flow path 11b of the indirect vaporization element 11 is adjusted by the opening degree of the supply air flow rate adjustment damper 14. Further, the flow rate of the working air WA passing through the working air flow path 11a of the indirect vaporization element 11 is adjusted by the opening degree of the exhaust flow rate adjustment damper 15.

  Accordingly, the temperature of the supply air SA that is blown out from the first supply air outlet 6a and the second supply air outlet 6b by operating either or both of the supply air flow adjustment damper 14 and the exhaust flow adjustment damper 15 is used. Is controlled.

  Further, in the ventilator 1T, by operating the supply air flow rate adjustment damper 19, the flow rate of the supply air SA blown out from the first supply air outlet 6a and the supply air SA blown out from the second supply air outlet 6b. The flow rate is controlled.

  For example, by increasing the opening degree of the supply air flow adjustment damper 19, the flow rate of the supply air SA blown from the second supply air outlet 6 b can be increased, and the opening degree of the supply air flow adjustment damper 19 is reduced. By doing this, the flow rate of the supply air SA blown out from the second supply air outlet 6b can be reduced.

  As shown in FIG. 30, when the air is supplied from the ventilator 1 to the plurality of rooms 102, the distance from the ventilator 1 to each room 102 is not uniform, and therefore the lengths of the ducts 106 are often different.

  When the supply air SA is set to the same flow rate and the respective rooms 102 are supplied with the ducts 106 having different lengths, the cooling temperatures in the rooms 102 are different. Further, the cooling temperature varies depending on the size of the living room 102. For this reason, as shown in FIG. 32, if the flow rate can be adjusted by the plurality of air supply outlets 6 and the air volume is controlled according to the length of the duct 106, the cooling temperature of each room 102 is made substantially the same. can do.

  In addition, although FIG. 32 demonstrated the example with two supply air outlets, two or more may be sufficient. Further, the flow rate is adjusted by the damper, but a configuration in which the diameter of the air supply outlet 6 can be made variable may be used. Furthermore, the branch chamber 106a shown in FIG. 30 may have an equivalent function.

  In addition, as shown in FIG. 30, when the return air RA is performed from one room (toilet), there is one return air inlet 7 as shown in FIG. 32, but the return air RA is divided into a plurality of rooms (rooms). When performing from the above, a plurality of return air suction ports 7 may be provided. In this case, the flow rate of the return air RA is adjusted by providing a damper constituting the return air flow rate adjusting means in at least one return air suction port 7, and the return air flow rate for each room is adjusted. The return air can be controlled to stop.

  Even in the ventilator 1T, by using the return air RA, the outside air can be cooled and taken in while the indoor air is exhausted to the outside, and the ventilator 1T has a function of performing cooling while performing ventilation. Become.

  Thus, by adjusting the flow rate of the return air RA and the flow rate of the supply air SA, a ventilation operation in which the air in the room is replaced in a predetermined time is possible, and it can be used as a 24-hour ventilation device. For this reason, in the ventilator 1T, the temperature is controlled by the flow rate of the working air WA and the flow rate of the product air PA. Therefore, the ventilation operation and the cooling are performed so that a desired cooling temperature can be obtained and a predetermined ventilation amount can be secured. Control that links the operations is performed.

<Ventilator control example>
FIG. 33 is a block diagram illustrating an example of a control function of the ventilator. In addition, as a ventilation apparatus, the structure provided with the dehumidification unit is made into an example. The ventilation device 1 includes a CPU 71 constituting a control unit, a fan motor 72 that drives the supply fan 2 and the exhaust fan 3, a damper motor 73 such as the supply air flow adjustment damper 14 and the exhaust flow adjustment damper 15, and a dehumidification unit 33. A dehumidification rotor motor 74 for driving the dehumidification rotor 36 is connected, and the CPU 71 controls these drive sources, whereby the temperature of the supply air SA is controlled.

  Moreover, the water supply valve 12a and the drainage valve 12b of the water supply / drainage device 12 are connected to the CPU 71, and the water supply / drainage control in the indirect evaporative cooling unit 4 is performed. Further, the CPU 71 includes a temperature sensor 17 provided in the air supply outlet 6 and the like, a water level sensor 13a provided in the drain pan 13, a human sensor 62 and a temperature sensor 63 provided in the air supply port 105 shown in FIG. The temperature of the supply air SA is controlled based on the various detection information.

  The CPU 71 is connected to a setting switch 75 that constitutes setting means and performs various operations, a cooling operation stop switch 76 that constitutes instruction means, and a memory 77 that stores setting information and the like, and is based on various operations and settings. Thus, temperature control of the supply air SA, operation stop control, and the like are performed.

  In addition, when the ion generator is provided in the ventilation apparatus 1 grade | etc., An ion generator is connected to CPU71, and generation | occurrence | production of positive / negative ion is controlled.

<Control by temperature sensor>
FIG. 34 is a flowchart showing an example of cooling control by the temperature sensor, and a specific control example will be described with reference to FIG. 32 and the like. Here, it is assumed that a desired set temperature value is registered in the memory 77 in advance. Further, it is assumed that the fan motor 72 and the like are driven to perform a cooling operation.

  Step SA1: The CPU 71 reads the temperature of the supply air SA from the temperature sensor 17. Alternatively, the temperature of the room 102 is read from the temperature sensor 63.

  Step SA2: The CPU 71 reads a set temperature value from the memory 77.

  Step SA3: The CPU 71 compares, for example, the temperature of the supply air SA read from the temperature sensor 17 with the set temperature value read from the memory 77. When the temperature of the supply air SA is lower than the set temperature value, the current control is maintained without changing the fan speed, the damper opening degree, etc., and the process returns to step SA1.

Step SA4: When the temperature of the supply air SA is higher than the set temperature value in the comparison with step SA3, the CPU 71 lowers the temperature of the supply air SA, for example, working air of the indirect evaporative cooling unit 4 shown in FIG. Increase the flow rate of WA. For example, CPU 71, by increasing the opening degree of the exhaust gas flow rate adjusting damper 1 5 controls the Danpamota 73, increasing the flow rate of the working air WA.

  When the flow rate of the working air WA increases in the indirect evaporative cooling unit 4, the temperature of the product air PA decreases as described above. Therefore, the temperature of the supply air SA can be lowered.

The temperature control of the supply air SA, in addition to control of the opening degree of the exhaust gas flow rate adjusting damper 1 5, control of the fan air volume and is also possible at a rotational speed control of dehumidification rotor 36.

  In step SA3, when the temperature of the supply air SA is lower than the set temperature value, the current control is maintained. However, the control of increasing the temperature of the supply air SA is performed by reducing the flow rate of the working air flow rate WA. You can go.

  Furthermore, when setting date data such as the date and time of operation at a desired set temperature value is registered in the memory 77, and the current date is the date specified by the setting date data registered in the memory 77, As described above, control may be performed so as to obtain a desired set temperature. In addition to temperature control, ventilation flow rate control may be performed.

  Here, the memory 77 is a rewritable memory, and the set temperature value can be rewritten by operating the setting switch 75. As the setting switch 75, an operation panel provided in the ventilation device 1, a remote control device connected by wire, wireless, infrared, or the like is used.

  By rewriting the set temperature value registered in the memory 77, a desired supply air temperature can be obtained. The set temperature value registered in the memory 77 may be temperature data, or the rotation speed of the fan motor 72, the driving voltage of the fan motor 72, the damper opening degree by the damper motor 73, the driving voltage of the damper motor 73, or the like.

  FIG. 35 is a flowchart showing another example of the cooling control by the temperature sensor. Here, it is assumed that a desired set temperature value is registered in the memory 77 in advance. Further, it is assumed that the fan motor 72 and the like are driven to perform a cooling operation.

  Step SB1: The CPU 71 reads the temperature of the supply air SA from the temperature sensor 17. Alternatively, the temperature of the room 102 is read from the temperature sensor 63.

  Step SB2: The CPU 71 reads a set temperature value from the memory 77.

  Step SB3: The CPU 71 compares the temperature of the supply air SA read from the temperature sensor 17, for example, with the set temperature value read from the memory 77. When the temperature of the supply air SA is lower than the set temperature value, the current control is maintained without changing the fan speed, the damper opening degree, etc., and the process returns to step SA1.

  Step SB4: When the temperature of the supply air SA is higher than the set temperature value in the comparison of Step SB3, the CPU 71 lowers the temperature of the supply air SA, for example, the water supply valve 12 of the water supply / drainage device 12 shown in FIG. The opening degree is increased, and the amount of water supplied to the indirect vaporization element 11 is increased.

  In the indirect vaporization cooling unit 4, as described above, the working air WA is cooled using the heat of vaporization of water in the indirect vaporization element 11. Therefore, when the amount of water supplied to the indirect vaporization element 11 increases, the working air WA The temperature of the product air PA that receives the cold heat of the working air WA decreases. Therefore, the temperature of the supply air SA can be lowered.

  Here, the set temperature value registered in the memory 77 can be rewritten. Also, the air flow control described in FIG. 34 and the water supply amount control may be combined.

<Control by human sensor>
FIG. 36 is a flowchart showing an example of cooling control by the human sensor. Here, it is assumed that a desired set temperature value that is switched according to the presence or absence of a person is registered in the memory 77. Further, it is assumed that the fan motor 72 and the like are driven to perform a cooling operation.

  Step SC1: The CPU 71 reads the presence / absence of a person in the living room 102 shown in FIG.

  Step SC2: The CPU 71 reads the first set temperature value and the second set temperature value from the memory 77. Here, the first set temperature value is the cooling temperature when there is a person, and the second set temperature value is the cooling temperature when there is no person.

  Step SC3: The CPU 71 determines the presence or absence of a person from the output of the human sensor 62.

  Step SC4: If there is a person in the room 102 as determined in Step SC3, the CPU 71 sets the temperature of the supply air SA to the first set temperature value, so that the fan rotation speed by the fan motor 72 and the damper opening by the damper motor 73 are opened. The rotational speed of the dehumidifying rotor 36 is controlled to adjust the flow rate of the working air WA, for example, and the temperature of the supply air SA is set to the first set temperature value.

  Step SC5: If there is no person in the room 102 as determined in step SC3, the CPU 71 sets the temperature of the supply air SA to the second set temperature value, so that the fan rotation speed by the fan motor 72 and the damper motor 73 By controlling the opening degree and the like, for example, the flow rate of the working air WA is adjusted, and the temperature of the supply air SA is set as the second set temperature value.

  Thus, by changing the cooling temperature depending on the presence or absence of a person, for example, when there is no person, the power consumption can be suppressed by setting the cooling temperature higher.

  Here, the first set temperature value and the second set temperature value registered in the memory 77 can be rewritten by operating the setting switch 75. Thereby, a desired supply air temperature can be obtained.

  FIG. 37 is a flowchart showing an example of ventilation amount control by the human sensor. Here, it is assumed that a desired ventilation flow value that is switched according to the presence or absence of a person is registered in the memory 77. Further, it is assumed that the fan motor 72 and the like are driven to perform a cooling operation.

  Step SD1: The CPU 71 reads the presence / absence of a person in the living room 102 shown in FIG.

  Step SD2: The CPU 71 reads the first set ventilation flow value and the second set ventilation flow value from the memory 77. Here, the first set ventilation flow value is the ventilation flow rate when there is a person, and the second set ventilation flow value is the ventilation flow rate when there is no person.

  Step SD3: The CPU 71 determines the presence or absence of a person from the output of the human sensor 62.

  Step SD4: If there is a person in the room 102 as determined in step SD3, the CPU 71 sets the ventilation flow rate to the first set ventilation flow value, so that the fan rotation speed by the fan motor 72, the damper opening degree by the damper motor 73, etc. Is controlled to adjust the flow rate of the supply air SA and the flow rate of the return air RA, and the return air flow rate is set as the first set return air flow value.

  Step SD5: If there is no person in the room 102 as determined in step SD3, the CPU 71 sets the ventilation flow rate to the second set ventilation flow value, so that the fan rotation speed by the fan motor 72 and the damper opening degree by the damper motor 73 are set. Etc. are controlled to adjust the flow rate at which the supply air SA is blown out and the flow rate at which the return air RA is sucked, and the return air flow rate is set as the second set return air flow value.

  In this way, by changing the ventilation flow rate depending on the presence or absence of a person, for example, when there is no person, the power consumption can be suppressed by setting the ventilation flow rate low.

  Here, the first set ventilation flow value and the second set ventilation flow value registered in the memory 77 can be rewritten by operating the setting switch 75. Thereby, a desired ventilation flow rate can be obtained.

<Start / stop control>
The ventilator 1 shown in FIG. 1 and the like functions as an air conditioner that controls the temperature of a living room by using the indirect evaporative cooling unit 4 and stops the cooling function by the indirect evaporative cooling unit 4 to control the temperature. Without functioning, it functions as a ventilation device that ventilates the room (replacement of outside air and return air).

  FIG. 38 is a flowchart showing an example of manual start / stop control. First, the manual stop operation of the cooling function will be described.

  Step SE1: The CPU 71 reads the output of the cooling operation stop switch 76.

  Step SE2: The CPU 71 determines whether or not the cooling stop is instructed from the output of the cooling operation stop switch 76.

  Step SE3: When the cooling stop is instructed in the determination at step SE2, the CPU 71 closes the water supply valve 12a of the water supply / drainage device 12 shown in FIG. 1, for example, and stops the water supply to the indirect vaporization element 11. When the water supply to the indirect vaporization element 11 is stopped, the working air WA is not cooled by the evaporation of water, and the product air PA is not cooled. Therefore, the temperature control of the supply air SA by the indirect evaporative cooling unit 4 is not performed. Thereby, the cooling function can be stopped.

  Note that the CPU 71 may open the drain valve 12b to drain the water in the drain pan 13 when the water supply valve 12a is closed and the water supply to the indirect vaporization element 11 is stopped. Thereby, when the cooling function is stopped for a long time, such as in winter, water can be left in the drain pan 13.

  Step SE4: When the activation of the cooling function is instructed in the determination of step SE2, the CPU 71 opens the water supply valve 12a of the water supply / drainage device 12 shown in FIG. 1 to supply water to the indirect vaporization element 11, for example. When water is supplied to the indirect vaporization element 11, the working air WA is cooled by evaporation of water, and the product air PA is cooled by receiving the cold heat of the working air WA. Thus, the temperature of the supply air SA is controlled by the indirect evaporative cooling unit 4, thereby enabling the cooling function to be activated.

  The CPU 71 closes the drain valve 12b when opening the water supply valve 12a so that the water can be stored in the drain pan 13.

  FIG. 39 is a flowchart showing an example of automatic start / stop control. Next, the automatic cooling function stop operation will be described. Here, in the memory 77, set date data such as the date and time when the cooling function is stopped is registered in advance.

  Step SF1: The CPU 71 reads the current date data from a calendar function or the like (not shown).

  Step SF2: The CPU 71 reads the set date data of the cooling stop period from the memory 77.

  Step SF3: The CPU 71 compares the current date data with the set date data read from the memory 77.

  Step SF4: If the current date is in the cooling stop period in the comparison of Step SF3, the CPU 71 closes the water supply valve 12a of the water supply / drainage device 12 shown in FIG. 1 and stops water supply to the indirect vaporization element 11, for example. . When the water supply to the indirect vaporization element 11 stops, the cooling function can be stopped as described above.

  Note that the CPU 71 may open the drain valve 12b to drain the water in the drain pan 13 when the water supply valve 12a is closed and the water supply to the indirect vaporization element 11 is stopped.

  Step SF5: If the current date is not within the cooling stop period in the comparison of Step SF3, the CPU 71 opens the water supply valve 12a of the water supply / drainage device 12 shown in FIG. Activate the function.

  The CPU 71 closes the drain valve 12b when opening the water supply valve 12a so that the water can be stored in the drain pan 13.

  Here, in the flowchart of FIG. 39, the cooling function is stopped and started based on the date, but the set temperature value for stopping the cooling function is registered in the memory 77 and detected by an outside air temperature sensor (not shown). When the outdoor temperature falls below the set temperature value, the cooling function is stopped, and when the outdoor temperature exceeds the set temperature value, the cooling function may be activated.

  Here, the set date data and the set temperature value registered in the memory 77 can be rewritten by operating the setting switch 75. Thereby, the cooling function can be stopped for a desired period.

<Drainage control>
The drainage control of the drain pan 13 is performed according to the water level and the like in addition to the drainage control accompanying the operation stop.

  FIG. 40 is a configuration diagram illustrating an example of the drain pan 13. The drain pan 13 includes a drain valve 12b at a position where all the accumulated water can be drained. Moreover, the water level sensor 13a which detects that the predetermined amount of water was stored is provided. In addition to the water level, the amount of water stored by weight or amount of water may be detected.

  Furthermore, the drain pan 13 includes a drain port 13b at a position where water above a predetermined water level can be discharged. The drain valve 12b and the drain port 13b are connected to a drain drain port 111 shown in FIG. 30, and water is drained outside the building. In addition, the drainage of the drain pan 13 may be connected to sewage or may be used for toilet flushing water.

  FIG. 41 is a flowchart showing an example of drainage control, and a drainage operation according to a change in the water level will be described.

  Step SG1: The CPU 71 reads the output of the water level sensor 13a.

  Step SG2: The CPU 71 determines whether or not the water level of the drain pan 13 exceeds a predetermined amount from the output of the water level sensor 13a.

  Step SG3: When the water level of the drain pan 13 exceeds the predetermined amount P1 as determined in step SG2, the CPU 71 opens the drain valve 12b of the water supply / drainage device 12 and drains the water of the drain pan 13. Further, while the drain valve 12b is opened, the water supply valve 12a is closed and the water supply to the indirect vaporization element 11 is stopped.

  Step SG4: If the water level of the drain pan 13 does not exceed the predetermined amount P1 as determined in Step SG2, the CPU 71 holds the drain valve 12b of the water supply / drainage device 12 closed and does not drain the water. If the water level sensor 13a can detect that the amount of stored water in the drain pan is below a predetermined amount, the water supply valve 12a is opened to supply water to the indirect vaporization element 11.

  With the above control, the water level of the drain pan 13 is monitored and controlled so that excess or deficiency of water does not occur. However, when the water level sensor 13a breaks down, there is a possibility that normal control cannot be performed.

  In this example, the drain pan 13 is provided with a drain port 13b so that water at a predetermined water level P2 or higher can be discharged from the drain port 13b. Thereby, even if the normal control cannot be performed when the water level sensor 13a breaks down, overflow can be prevented.

<Water recovery configuration>
In the indirect vaporization cooling unit 4, the working air WA is cooled by the heat of vaporization of water, so that water is consumed. Since the working air WA is highly humid air, water consumption can be reduced by collecting and reusing the water from the working air WA.

  FIG. 42 is a block diagram showing a first embodiment of an indirect evaporative cooling unit equipped with a water recovery device. FIG. 42 schematically shows the configuration of the indirect vaporization cooling unit 4A. Here, in the indirect evaporative cooling unit 4A of FIG. 42, as described in FIG. 1 and the like, the return air RA is used as the working air WA. However, as described in FIG. The form using OA as working air WA may be sufficient.

  In the indirect evaporative cooling unit 4A, a water supply pipe 82 constituting the water supply / drainage device 12 is arranged on the outlet side of the working air flow path 11a above the indirect vaporization element 11 as a recovery device 81A. The water supply pipe 82 is meandered to increase the flow path length. In addition, the water supply piping 82 is a structure which supplies water to the indirect vaporization element 11 from the front-end | tip, for example.

  Thereby, the working air flow path 11a of the indirect vaporization element 11 communicates with the exhaust flow path 10 through the space provided with the water supply pipe 82, and the water supply pipe 82 is arranged in the discharge flow path of the working air WA.

  As described above, in the indirect vaporization element 11, the working air WA passing through the working air flow path 11a is cooled by the heat of vaporization of water, and when the working air WA is cooled, the product air PA passing through the product air flow path 11b is changed. Cooled by the cold air of the working air WA.

  Thereby, the return air RA which passed the working air flow path 11a of the indirect vaporization element 11 turns into high humidity air.

  When high-humidity air passes through the space where the water supply pipe 82 is installed, the water is cooled by the cold heat of the supply water flowing through the water supply pipe 82 and moisture is condensed. And since the feed water piping 82 is arrange | positioned at the upper part of the indirect vaporization cooling element 11, the water | moisture content which condensed is dripped at the indirect vaporization cooling element 11 from the feed water piping 82, and is reused.

  FIG. 43 is a configuration diagram showing a second embodiment of an indirect evaporative cooling unit provided with a water recovery device. In addition, in FIG. 43, the structure of the indirect vaporization cooling unit 4B is shown typically. Here, in the indirect evaporative cooling unit 4B shown in FIG. 43, the return air RA is used as the working air WA as described with reference to FIG. 1 and the like. However, as described with reference to FIG. The form using OA as working air WA may be sufficient.

  The indirect evaporative cooling unit 4B is indirectly connected to the recovery exhaust pipe 83 branched from the exhaust flow path 10 upstream of the indirect evaporative cooling unit 4B and communicated with the exhaust flow path 10 downstream of the indirect evaporative cooling unit 4B. Provided in contact with the upper part of the evaporative cooling unit 4. In addition, the structure by which the collection | recovery exhaust piping 83 is arrange | positioned in the discharge flow path of the working air WA may be sufficient.

  As described above, in the indirect vaporization element 11, the working air WA that passes through the working air flow path 11a is cooled by the heat of vaporization of water, so the return air RA that has passed through the working air flow path 11a becomes high-humidity air. .

  Since the upper side of the indirect vaporization unit 4 is cooled by the cold heat of the return air RA flowing through the recovery exhaust pipe 83, moisture is condensed in the air blown out from the working air flow path 11a of the indirect vaporization element 11. The condensed moisture is dropped on the indirect vaporization cooling element 11 and reused.

  FIG. 44 is a block diagram showing a third embodiment of an indirect evaporative cooling unit equipped with a water recovery device. FIG. 44 schematically shows the configuration of the indirect vaporization cooling unit 4C. Here, in the indirect evaporative cooling unit 4C in FIG. 44, the return air RA is used as the working air WA as described in FIG. 1 and the like. However, as described in FIG. The form using OA as working air WA may be sufficient.

  The indirect evaporative cooling unit 4C includes, as a recovery device 81C, a cooling exhaust pipe 84 communicating with a working air flow path 11a disposed on the outlet side of the product air flow path 11b in the indirect vaporization element 11, and an inlet of the product air flow path 11b. A recovery exhaust pipe 85 communicated with the working air flow path 11a disposed on the side is provided.

  The cooling exhaust pipe 84 and the recovery exhaust pipe 85 are in contact with each other at the heat receiving portion 86. The heat receiving portion 86 is configured, for example, such that a small diameter recovery exhaust pipe 85 passes through a large diameter cooling exhaust pipe 84. In the heat receiving portion 86, there is no air flow between the cooling exhaust pipe 84 and the recovery exhaust pipe 85.

  Further, both the cooling exhaust pipe 84 and the recovery exhaust pipe 85 communicate with the exhaust outlet 8 shown in FIG.

  In the indirect vaporization element 11, the working air flow path 11a disposed on the inlet side of the product air flow path 11b and the working air flow path 11a disposed on the outlet side have different outlet temperatures and outlet humidity of the working air WA. . That is, the working air WA that has passed through the working air channel 11a disposed on the inlet side of the product air channel 11b is relatively hot and humid because the temperature of the product air PA is high. On the other hand, the working air WA that has passed through the working air flow path 11a disposed on the outlet side of the product air flow path 11b has low temperature and low humidity because the temperature of the product air PA is low.

  In this example, moisture is condensed using the temperature difference of the working air WA. That is, the relatively high temperature and high humidity working air WA flowing through the recovery exhaust pipe 85 is cooled by the cold heat of the low temperature and low humidity working air WA flowing through the cooling exhaust pipe 84 in the heat receiving section 86, and moisture is condensed.

  Since the recovery exhaust pipe 85 is connected to the upper side of the indirect vaporization element 11, the condensed moisture drops from the recovery exhaust pipe 85 to the indirect evaporation cooling element 11 and is reused.

  As in each of the above examples, the water consumed by the indirect vaporization element 11 is collected by using the recovery device 81 so that the water can be supplied to the indirect vaporization element 11 again. Can be suppressed.

  The present invention is applied to a ventilator that is installed in a general house and ventilates and air-conditions a plurality of rooms.

It is a lineblock diagram showing an example of ventilator 1A of a 1st embodiment. It is explanatory drawing which shows the outline | summary of the indirect vaporization element 11. FIG. It is a graph which shows the relationship between the flow volume of the working air WA, and the exit temperature of product air PA. It is a graph which shows the relationship between the flow volume of product air PA, and the exit temperature of product air PA. It is a graph which shows the relationship between the inlet temperature of working air WA and product air PA, and the outlet temperature of product air PA. It is a graph which shows the relationship between the inlet temperature of working air WA and product air PA, and the consumption of water. It is a graph which shows the relationship between the entrance humidity of working air WA and product air PA, and the exit temperature of product air PA. It is a block diagram which shows an example of the ventilation apparatus 1B of 2nd Embodiment. It is a block diagram which shows an example of the ventilation apparatus 1C of 3rd Embodiment. It is a block diagram which shows an example of ventilation apparatus 1D of 4th Embodiment. It is a block diagram which shows an example of the ventilation apparatus 1E of 5th Embodiment. It is a block diagram which shows an example of the ventilation apparatus 1F of 6th Embodiment. It is a block diagram which shows an example of the ventilation apparatus 1G of 7th Embodiment. It is a block diagram which shows an example of the ventilation apparatus 1H of 8th Embodiment. It is a block diagram which shows an example of the ventilation apparatus 1I of 9th Embodiment. It is a block diagram which shows an example of the ventilation apparatus 1J of 10th Embodiment. It is a block diagram which shows an example of the ventilation apparatus 1K of 11th Embodiment. It is a block diagram which shows an example of 1 L of ventilation apparatus of 12th Embodiment. It is a graph which shows the relationship between the rotational speed of the dehumidification rotor 36, and the exit temperature of product air PA. It is a block diagram which shows an example of the ventilation apparatus 1M of 13th Embodiment. It is a block diagram which shows an example of the ventilation apparatus 1N of 14th Embodiment. It is a block diagram which shows an example of the ventilation apparatus 1P of 15th Embodiment. It is a block diagram which shows an example of the ventilation apparatus 1Q of 16th Embodiment. It is a block diagram which shows an example of the ventilation apparatus 1R of 17th Embodiment. It is a block diagram which shows an example of the ventilation apparatus 1S of 18th Embodiment. It is a perspective view which shows an example of the principal part structure of the ventilation apparatus of each embodiment. It is a principal part block diagram of the ventilation apparatus of each embodiment. It is another principal part block diagram of the ventilation apparatus of each embodiment. It is a block diagram of the other indirect vaporization element which shows the principal part structure of the ventilation apparatus of each embodiment. It is a block diagram which shows an example of the building of this Embodiment. It is a block diagram which shows an example of an air supply opening. It is a block diagram which shows an example of the ventilation apparatus 1T of 19th Embodiment. It is a block diagram which shows an example of the control function of a ventilator. It is a flowchart which shows an example of the cooling control by a temperature sensor. It is a flowchart which shows the other example of the cooling control by a temperature sensor. It is a flowchart which shows an example of the cooling control by a human sensitive sensor. It is a flowchart which shows an example of the ventilation amount control by a human sensor. It is a flowchart which shows an example of start / stop control by manual operation. It is a flowchart which shows an example of automatic start / stop control. 3 is a configuration diagram illustrating an example of a drain pan 13. FIG. It is a flowchart which shows an example of drainage control. It is a block diagram which shows 1st Embodiment of the indirect vaporization cooling unit provided with the water collection | recovery apparatus. It is a block diagram which shows 2nd Embodiment of the indirect vaporization cooling unit provided with the collection | recovery apparatus of water. It is a block diagram which shows 3rd Embodiment of the indirect vaporization cooling unit provided with the water collection | recovery apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Ventilation device, 2 ... Air supply fan, 3 ... Exhaust fan, 4 ... Indirect vaporization cooling unit, 5 ... Outside air inlet, 6 ... Supply air outlet, 7. ..Return air suction port, 8 ... Exhaust air outlet, 9 ... Air supply flow path, 10 ... Exhaust flow path, 11 ... Indirect vaporization element, 11a ... Working air flow path, 11b ... Product air flow path, 12 ... Water supply / drainage device, 12a ... Water supply valve, 12b ... Drain valve, 13 ... Drain pan, 14 ... Air supply flow rate adjustment damper, 15 ... Exhaust Flow adjustment damper, 16 ... Air purification filter, 17 ... Temperature sensor, 18 ... Supply air flow adjustment damper, 19 ... Supply air flow adjustment damper, 21 ... Dry cell, 21a ... Partition , 21b ... first flow path, 22 ... wet cell, 22a ... Cut, 22b ... second flow path, 23 ... partition, 23a ... moisture-proof film, 23b ... wet layer, 23c ... vent, 24 ... occlusion, 31 ... Heat exchange unit, 32 ... heat exchange element, 32a ... first flow path, 32b ... second flow path, 33 ... dehumidification unit, 34 ... partition, 35a ... dehumidification Flow path, 35b ... Regeneration flow path, 36 ... Dehumidification rotor, 37 ... Heater

Claims (7)

An air supply passage communicating from the outside air inlet to the air supply outlet;
An exhaust passage communicating from the return air inlet to the exhaust outlet;
A working air flow path that is connected to the air supply flow path or the exhaust flow path and is supplied with working air; and a product air flow path that is connected to the air supply flow path and is supplied with product air. Indirect evaporative cooling unit in which the working air is cooled and the sensible heat exchange between the working air and the product air is performed between the working air channel and the product air channel partitioned by the partition wall,
A water supply / drainage device provided in the indirect evaporative cooling unit for supplying and draining water;
A recovery device that recovers the water vaporized by the indirect evaporative cooling unit and reuses it for water supply;
The recovery device includes a recovery exhaust passage branched from the air supply passage or the exhaust passage and communicated with the exhaust outlet,
A ventilator characterized in that the working air is cooled by the cold heat of the air flowing through the recovery exhaust passage so that moisture is condensed and recovered . An air supply passage communicating from the outside air inlet to the air supply outlet;
An exhaust passage communicating from the outside air inlet to the exhaust outlet;
It has a working air channel that communicates with the exhaust channel and is supplied with working air and a product air channel that communicates with the air supply channel and is supplied with product air. The working air is cooled by the heat of vaporization of water. And an indirect evaporative cooling unit in which sensible heat exchange between the working air and the product air is performed between the working air channel and the product air channel partitioned by a partition wall,
A water supply / drainage device provided in the indirect evaporative cooling unit for supplying and draining water;
A recovery device that recovers the water vaporized by the indirect evaporative cooling unit and reuses it for water supply;
The recovery device includes a recovery exhaust passage branched from the air supply passage or the exhaust passage and communicated with the exhaust outlet,
A ventilator characterized in that the working air is cooled by the cold heat of the air flowing through the recovery exhaust passage so that moisture is condensed and recovered . An air supply passage communicating from the return air inlet to the air supply outlet;
An exhaust passage communicating from the return air inlet to the exhaust outlet;
It has a working air channel that communicates with the exhaust channel and is supplied with working air and a product air channel that communicates with the air supply channel and is supplied with product air. The working air is cooled by the heat of vaporization of water. And an indirect evaporative cooling unit in which sensible heat exchange between the working air and the product air is performed between the working air channel and the product air channel partitioned by a partition wall,
A water supply / drainage device provided in the indirect evaporative cooling unit for supplying and draining water;
A recovery device that recovers the water vaporized by the indirect evaporative cooling unit and reuses it for water supply;
The recovery device includes a recovery exhaust passage branched from the air supply passage or the exhaust passage and communicated with the exhaust outlet,
A ventilator characterized in that the working air is cooled by the cold heat of the air flowing through the recovery exhaust passage so that moisture is condensed and recovered . An air supply passage communicating from the outside air inlet to the air supply outlet;
An exhaust passage communicating from the return air inlet to the exhaust outlet;
A working air flow path that is connected to the air supply flow path or the exhaust flow path and is supplied with working air; and a product air flow path that is connected to the air supply flow path and is supplied with product air. Indirect evaporative cooling unit in which the working air is cooled and the sensible heat exchange between the working air and the product air is performed between the working air channel and the product air channel partitioned by the partition wall,
A water supply / drainage device provided in the indirect evaporative cooling unit for supplying and draining water;
A recovery device that recovers the water vaporized by the indirect evaporative cooling unit and reuses it for water supply;
The recovery device is disposed on the inlet side of the product air flow path, the cooling exhaust flow path communicating with the working air flow path disposed on the outlet side of the product air flow path of the indirect vaporization cooling unit A recovery exhaust passage that communicates with the working air passage and has a heat receiving portion with the cooling exhaust passage, and the working air that flows through the recovery exhaust passage is cooled by the cold heat of the working air that flows through the cooling exhaust passage. Cool and collect moisture to condense
Ventilator characterized by that . An air supply passage communicating from the outside air inlet to the air supply outlet;
An exhaust passage communicating from the outside air inlet to the exhaust outlet;
It has a working air channel that communicates with the exhaust channel and is supplied with working air and a product air channel that communicates with the air supply channel and is supplied with product air. The working air is cooled by the heat of vaporization of water. And an indirect evaporative cooling unit in which sensible heat exchange between the working air and the product air is performed between the working air channel and the product air channel partitioned by a partition wall,
A water supply / drainage device provided in the indirect evaporative cooling unit for supplying and draining water;
A recovery device that recovers the water vaporized by the indirect evaporative cooling unit and reuses it for water supply;
The recovery device is disposed on the inlet side of the product air flow path, the cooling exhaust flow path communicating with the working air flow path disposed on the outlet side of the product air flow path of the indirect vaporization cooling unit A recovery exhaust passage that communicates with the working air passage and has a heat receiving portion with the cooling exhaust passage, and the working air that flows through the recovery exhaust passage is cooled by the cold heat of the working air that flows through the cooling exhaust passage. Cool and collect moisture to condense
Ventilator characterized by that . An air supply passage communicating from the return air inlet to the air supply outlet;
An exhaust passage communicating from the return air inlet to the exhaust outlet;
It has a working air channel that communicates with the exhaust channel and is supplied with working air and a product air channel that communicates with the air supply channel and is supplied with product air. The working air is cooled by the heat of vaporization of water. And an indirect evaporative cooling unit in which sensible heat exchange between the working air and the product air is performed between the working air channel and the product air channel partitioned by a partition wall,
A water supply / drainage device provided in the indirect evaporative cooling unit for supplying and draining water;
A recovery device that recovers the water vaporized by the indirect evaporative cooling unit and reuses it for water supply;
The recovery device is disposed on the inlet side of the product air flow path, the cooling exhaust flow path communicating with the working air flow path disposed on the outlet side of the product air flow path of the indirect vaporization cooling unit A recovery exhaust passage that communicates with the working air passage and has a heat receiving portion with the cooling exhaust passage, and the working air that flows through the recovery exhaust passage is cooled by the cold heat of the working air that flows through the cooling exhaust passage. Cool and collect moisture to condense
Ventilator characterized by that . The ventilator according to any one of claims 1 to 6 is provided.
A building characterized by that.

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