JP3903844B2 - Heat exchange ventilator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a heat exchange ventilator that ventilates indoor air to the outside through a built-in heat exchanger, and performs ventilation by supply and exhaust by supplying heat by exchanging heat of the outdoor air indoors by the heat exchanger. Is.
[0002]
[Prior art]
As shown in FIG. 9, this type of heat exchange ventilator has a built-in heat exchanger 50 that performs air-to-air heat exchange, and performs ventilation by simultaneous supply and exhaust while performing heat exchange. Ventilation with little fluctuation of state quantity can be performed. Such a heat exchange ventilator often employs a stacked heat exchanger 50 configured in a hexahedron. The end face of the heat exchanger 50 has a parallelogram shape, and conventionally, for example, as shown in Japanese Patent Application Laid-Open No. 9-178238 and Japanese Patent Application Laid-Open No. 2-267442, the box-shaped casing 51 has its end face. One of the two diagonal lines related to the fore edge is installed in the horizontal direction and the other in the vertical direction. Accordingly, the fluid passages through which the exhaust flow and the supply air flow pass obliquely cross each other, and the indoor air 52 sucked from the indoor side suction port formed on the lower surface of the casing 51 is one fluid passage of the heat exchanger 50. The outdoor air 53 that has flowed diagonally upward and sucked from the outdoor suction port flows obliquely downward in the other fluid passage of the heat exchanger 50 and is blown into the room from the indoor outlet. Some of these heat exchange ventilators have a function of improving air quality as disclosed in JP-A-6-235542. In order to improve air quality such as humidity, a humidifier is incorporated in the air supply passage on the downstream side of the heat exchanger. Moreover, in order to improve the air quality such as odor, a deodorizer is incorporated in an air supply passage on the downstream side of the heat exchanger.
[0003]
[Problems to be solved by the invention]
In the conventional heat exchange ventilator with a humidification function as described above, for example, a configuration is adopted in which the air supply airflow is passed through the humidifier, so that the humidifier height set to ensure the humidification function is adopted. There is a problem that the height dimension of the casing of the heat exchange ventilator depends on the height dimension, and the height dimension of the heat exchange ventilator becomes large. Moreover, since the heat exchange ventilator having various functions for improving the air quality is an individual product, there is also a problem that it is easy to make a mistake in arranging the product. Furthermore, when performing maintenance on the built-in humidifier, it is necessary to close the water stop valve provided in the water supply pipe, and a dedicated inspection port for opening and closing the water stop valve is also required.
[0004]
The present invention has been made to solve the above-described conventional problems, and the problem is that a heat exchange ventilator having a basic heat exchange ventilation function has a function of improving air quality. By installing various functional units, it is possible to obtain a heat exchange ventilator that can give various air quality improvement functions, and the functional unit to be installed based on the height of the basic heat exchange ventilator It is to obtain a heat exchange ventilator whose dimensions can be determined, and to improve the workability of the heat exchange ventilator.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, a part of a path is constituted by one fluid passage of a laminated hexahedron heat exchanger built in a hexahedron casing, and is blown from the outside by a blower. A part of the path is constituted by the air supply passage for passing the air flow toward the room and the air supply passage, and the other fluid passage of the heat exchanger is directed to the outside from the room by the blower. About a heat exchange ventilator equipped with an exhaust ventilation path through which air flows, the heat exchanger is arranged in the casing so that one fluid passage intersects with the other fluid passage in a substantially horizontal direction and a substantially vertical direction In addition, a blower that forms a supply air flow is disposed on one side of both small openings where the fluid passage of the heat exchanger does not face, and a blower that forms an exhaust flow is disposed on the other side, at the outlet end of the supply air ventilation path. An indoor outlet and an exhaust vent entrance Are separated from the lower surface of the casing facing the opening surface of one fluid passage of the heat exchanger, and the outlet side of the fluid passage constituting the air supply passage of the heat exchanger in the casing is Adopting means for opening and closing a window capable of attaching a functional unit for improving air quality to the air supply passage in the casing on one side faced.
[0006]
In order to achieve the above object, the invention according to claim 2 is configured such that a bypass route of the supply air passage is formed at a window of the opened casing in the means according to claim 1, and a humidifier is provided in the bypass route. A means for attaching a humidifying unit as a functional unit is adopted.
[0007]
In order to achieve the above-mentioned object, the invention according to claim 3 is a function in which a bypass of the supply air passage is formed at the window of the opened casing in the means according to claim 1, and a filter is provided in the bypass A means for mounting a filter unit as a unit is employed.
[0008]
In order to achieve the above object, the invention of claim 4 employs means for constituting the filter in the means according to claim 3 with a deodorizing filter.
[0009]
In order to achieve the above object, a fifth aspect of the present invention is configured to distribute a supply air flow from a substantially vertical direction to a humidifier or a filter in a detour in the means according to any one of the second to fourth aspects. Adopt a means to do.
[0010]
In order to achieve the above object, a sixth aspect of the present invention relates to a drain receiver in which a water stop valve provided in a water supply pipe connected to the humidifier in the means according to the second aspect is provided in a lower portion of the humidifier. The means provided in is adopted.
[0011]
In order to achieve the above object, the invention of claim 7 employs means for adjusting an attachment angle between the window of the casing and the humidifying unit in the means according to claim 2 or claim 6.
[0012]
In order to achieve the above object, the invention of claim 8 provides a drainage pipe and a drainage valve provided in a water supply pipe connected to the humidifier in the means according to claim 2 or claim 6 or claim 7. Is used in a drain receiver provided in the lower part of the humidifier.
[0013]
In order to achieve the above object, a ninth aspect of the present invention is directed to a heat exchanger for connecting a ventilation path of an air supply ventilation path in the means according to any one of the second to eighth aspects from an outdoor inlet through a blower. A means is adopted that passes through the functional unit and reaches the indoor outlet.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
In the heat exchange ventilator of the present embodiment, as shown in FIG. 1, the overall plan view is shown in FIG. 2, and the overall exploded perspective view is shown in FIG. It is housed in a hexagonal box-shaped casing 2 and performs indoor ventilation by simultaneous supply / exhaust while exchanging heat, and ventilation with little variation in the state quantity of the room can be performed. In this heat exchange ventilator, as shown in a sectional view in FIG. 3, a part of the path is constituted by one fluid passage 3 of the heat exchanger 1, and an air flow from the outside to the room is passed by the air supply blower 4. The supply air ventilation path 5 and a part of the path are constituted by the other fluid path 6 of the heat exchanger 1, and the exhaust ventilation path 8 through which the air flow from the room to the outside by the exhaust blower 7 is independent over the entire path. Configured.
[0015]
As shown in FIG. 1, the heat exchanger 1 is formed in a laminated hexahedron, the fluid passage 3 on the supply air passage 5 side is directed in a substantially horizontal direction, and the fluid passage 6 on the exhaust ventilation passage 8 side is in a substantially vertical direction. It is incorporated in the center of the casing 2 so as to face. On the both sides of the casing 2 facing the two small openings where the fluid passages 3 and 6 of the heat exchanger 1 do not face, the partition wall 9 is separated from the heat exchanger 1 side, and the lower surface is closed by a detachable closing plate. An air chamber 10 and an exhaust chamber 11 are respectively defined. An outdoor suction port 12 is opened on the front surface of the casing 2 defining the air supply chamber 10, and a duct connection port 13 is provided so as to communicate with the outside (mostly outdoors) by a duct. A centrifugal air supply blower 4 is incorporated in the air supply chamber 10 with the rotating shaft 14 of the electric motor being substantially vertical. The blower outlet of the air supply blower 4 faces a vertically long communication port 15 formed on the front side of the partition wall 9 separating the casing 2 from the heat exchanger 1 side, and the front surface of the heat exchanger 1 and the casing 2. It communicates with a part of the air supply ventilation path 5 formed between the inner wall surface of the front of the.
[0016]
An outdoor air outlet 16 is opened on the front surface of the casing 2 that defines the exhaust chamber 11 on the opposite side of the air supply chamber 10, and the duct connection port 13 is connected to the outside (mostly outdoors) by a duct. Is provided. A centrifugal exhaust blower 7 is incorporated in the exhaust chamber 11 with the rotating shaft 14 of the electric motor being substantially horizontal. The outlet of the exhaust blower 7 faces the outdoor outlet 16. In the upper part of the partition wall 9 that separates the exhaust chamber 11 and the heat exchanger 1 side in the casing 2, a horizontally long communication port 17 is opened, between the upper surface of the heat exchanger 1 and the inner wall surface of the top surface of the casing 2. It communicates with a part of the exhaust ventilation path 8 formed in. Further, a bypass ventilation passage 19 that is normally closed by a damper device 18 is formed at the lower portion of the partition wall 9 so that the heat exchanger 1 can be communicated with the damper device 18 by opening the damper device 18. The damper device 18 operates so as to close one of the communication port 17 and the bypass ventilation path 19 and open the other.
[0017]
The open part of the lower part of the casing 2 facing the heat exchanger 1 is connected to a slide chamber 20 in a square tube state that can be adjusted by sliding in the vertical direction, and a decorative panel 21 is mounted so as to cover the opening at the lower end of the slide chamber 20. ing. Horizontal partition plates 22 are provided between the front and rear ridge corners of the upper surface of the heat exchanger 1 and the front and rear inner wall surfaces of the casing 2, respectively, and the front ridge corner and the casing 2 of the lower surface of the heat exchanger 1 are provided. A horizontal partition plate 23 is also provided between the front wall and the inner wall surface so as to be detachable by an operation from an open portion of the casing 2. In addition, a partition wall structure 24 that is flexible and can be expanded and contracted is provided in a hanging state at the ridge corner on the back side of the lower surface of the heat exchanger 1, the lower end abuts on the back surface of the decorative panel 21, and the indoor air inlet 25 The room-side air outlet 26 is separated (see FIG. 3). The decorative panel 21 is configured such that a suction grill and a blow-out grill that communicate with the indoor suction port 25 and the indoor blow-out port 26 respectively face the room.
[0018]
The air supply ventilation path 5 has the outdoor suction port 12 as an inlet end, reaches from the supply chamber 10 through the air supply blower 4 to the air supply ventilation path 5 on the front side of the casing 2 from the communication port 15, and further It passes through the fluid passage 3 facing the substantially horizontal direction of the heat exchanger 1, reaches a room-side air outlet 26 on the lower surface of the casing 2 from a part of the air supply ventilation path 5 on the back side of the casing 2, and connects this to the outlet end A dust filter 27 is detachably mounted on the surface of the heat exchanger 1 facing the inlet of the fluid passage 3. On the other hand, the exhaust ventilation path 8 has an indoor inlet port 25 at the lower part of the casing 2 as an inlet end, passes through a fluid passage 6 facing the substantially vertical direction of the heat exchanger 1, and exhaust ventilation on the top side of the casing 2. From a part of the path 8 to the exhaust chamber 11 through the communication port 17, to the outdoor blower outlet 16 on the front surface of the casing 2 through the exhaust blower 7, and configured as a series of ventilation paths having this as an outlet end, An air filter 29 for preventing clogging is detachably mounted on the surface of the heat exchanger 1 facing the inlet of the fluid passage 6.
[0019]
On one side of the casing 2 facing the outlet side of the fluid passage 3 constituting the air supply ventilation path 5 of the heat exchanger 1, a rectangular window 30 to which a functional unit for improving air quality can be attached is opened. The window 30 is closed by a closing plate 31 when no functional unit is mounted.
[0020]
The heat exchange ventilator having the above-described configuration having a basic heat exchange ventilation function can supply outdoor air into the room through the heat exchanger 1 through the supply air passage 5 and at the same time through the exhaust ventilation passage 8. The indoor air can be exhausted to the outside through 1, and heat exchange ventilation by simultaneous supply and exhaust can be performed while performing heat exchange. Further, the damper device 18 closes the communication port 17 of the exhaust ventilation path 8 and opens the bypass ventilation path 19, thereby exchanging heat from the indoor suction port 25 through the exhaust chamber 11 to the outdoor blowout port 16 by the exhaust blower 7. The room air can be exhausted without going through the chamber 1, and normal ventilation without heat exchange can also be performed. The bypass ventilation path 19 can be easily configured because the indoor suction port 25 is adjacent to the exhaust chamber 11 across the partition wall 9.
[0021]
In this heat exchanging ventilator, the heat exchanger 1 is placed in the casing 2 so that the two fluid passages 3 and 6 are oriented in a substantially horizontal direction and a substantially vertical direction. The cross-sectional shapes of the partial supply air passage 5 and the exhaust air passage 8 are substantially rectangular. By adopting such a configuration, when the dimensions of the heat exchanger 1 and the air passage area of each ventilation path are the same, the height dimension of the casing 2 can be reduced, and the reduction in thickness can be promoted.
[0022]
Air passage cross section is more square becomes more circumferential囲長long triangle, but in terms of the pressure loss is as disadvantageous, can be made uniform suction distribution, thereby eliminating regarding pressure loss that Can do. The outdoor air push-in port to the air supply ventilation path 5 where the heat exchanger 1 is placed is in the middle, and the outdoor air is taken in from the outdoor air intake opening 12 to the air supply ventilation path 5 located in the middle by the air supply blower 4. Can be pushed in easily.
[0023]
Both the dust filter 27 and the air filter 29 can be detached without removing the heat exchanger 1 from the open part below the casing 2, and the dust filter 27 and the air filter 29 can be easily cleaned. Can do. The heat exchanger 1 can also be attached and detached from the open part of the casing 2. The positions of the outdoor air outlet 16 and the outdoor air inlet 12 do not have to be on the front surface side of the casing 2, and may be on the back surface or the top surface.
[0024]
When a humidifying function is given to this basic heat exchange ventilator, a humidifying unit 32 as shown in FIG. 4 is provided as a functional unit, and the window 30 of the casing 2 is opened, and FIG. 5 and FIG. You just have to install. In the humidifying unit 32, a humidifier 34 is incorporated in an open box casing 33 having the same height as the height of the casing 2, and a flange 35 is formed in the window 30 at an open portion of the box casing 33. Screws are mounted so that the angle can be adjusted by about 5 degrees by means of the long hole 36 provided in the. A drain tray 37 is provided at the bottom of the box-shaped casing 33, and a drain pipe 38 is connected to the drain tray 37. The open part of the box-shaped casing 33 is divided vertically by a partition member 39 in the middle stage, the upper side communicates with the outlet side of the fluid passage 3 of the heat exchanger 1, and the lower side is an indoor outlet of the air supply ventilation path 5 Contact 26.
[0025]
That is, the bypass casing 40 of the air supply ventilation path 5 is configured in the box-shaped casing 33, and the humidifier 34 is incorporated in the bypass path 40 so that the supply airflow flows from a substantially vertical direction. A water supply pipe 41 is connected to the humidifier 34, and a water stop valve 43 shown in FIG. 7 that also serves as a drain valve provided with a drain pipe 42 is provided in a drain tray 37 of the water supply pipe 41, and a downstream portion of the water stop valve 43. The drain tray 37 is provided with a strainer 44 and a flow control valve.
[0026]
In the heat exchange ventilator equipped with the humidification unit 32, the air supply airflow that has passed through the fluid passage 3 of the heat exchanger 1 flows through the bypass circuit 40 of the humidification unit 32, passes through the humidifier 34 from top to bottom, After being humidified, the air is returned to the air supply passage 5 and blown out from the indoor outlet 26. The ventilation path of the supply air ventilation path 5 is rectified through the heat exchanger 1 by adopting a configuration in which it passes through the heat exchanger 1 through the supply air blower 4 and the humidifier 34 from the outdoor air inlet 12. Since the air supply air can be passed through the humidifier 34, the air supply air can be evenly humidified and the humidification efficiency is improved. Even if the heat exchange ventilator has a slight inclination, it can be adjusted by a long hole 36 and a screw so that the drain tray 37 can be drained.
[0027]
It is necessary to remove chips and the like in the piping after the piping at the time of construction, but the drain receiving tray 37 can be drained by stopping the water stop valve 43 and opening the drain pipe 42. There is no need to prepare a container, and the work can be done easily. Moreover, since each part of the water supply system is arranged in the drain tray 37, even if there is water leakage due to a component failure or the like, the ceiling can not be wetted and drained from the drain tray 37 through the drain pipe 38. It is not necessary to provide a water stop valve or the like outside, and the workability is good because no inspection port is required. In addition, by removing the heat exchanger 1 on the heat exchange ventilator side, the humidification unit 32 can be maintained and inspected from the open part of the lower part of the casing 2 of the heat exchange ventilator, and the inspection port is not required by the decorative panel 21 alone. It is.
[0028]
As the functional unit, a filter unit 47 as shown in FIG. 8 incorporating a high-performance filter and a deodorizing filter 46 in addition to the humidifying unit 32 can be used, and various air quality improvement functions can be easily added to the heat exchange ventilator. Can be added. Since only one type of basic heat exchange ventilator is required, there is no need to make arrangements and product management is easy.
[0029]
【The invention's effect】
According to the invention of claim 1, various air quality improvement functions can be achieved by simply mounting various functional units having a function of improving air quality on a heat exchange ventilator having a basic heat exchange ventilation function. A heat exchange ventilation device that can be applied is obtained, and there are almost no mistakes in arrangement.
[0030]
According to invention of Claim 2, a humidification function can be provided with the effect which concerns on Claim 1.
[0031]
According to invention of Claim 3, a filter function can be provided with the said effect which concerns on Claim 1.
[0032]
According to invention of Claim 4, a deodorizing function can be provided with the said effect which concerns on Claim 3.
[0033]
According to the invention of claim 5, the dimensions of the functional unit to be mounted can be determined based on the height dimension of the basic heat exchange ventilator together with the effects according to any one of claims 2 to 4. The height of the device can be reduced.
[0034]
According to invention of Claim 6, the inspection port for a water stop valve becomes unnecessary with the said effect which concerns on Claim 2, and workability | operativity improves.
[0035]
According to invention of Claim 7, the attachment angle of a humidification unit can be adjusted with the said effect which concerns on either Claim 2 or Claim 6, without moving a heat exchange ventilator, and workability | operativity improves.
[0036]
According to the invention of claim 8, it is not necessary to prepare a separate water receiving container or the like in the piping water flow at the time of construction together with the effect according to claim 2, claim 6 or claim 7. Will improve.
[0037]
According to the ninth aspect of the present invention, the rectified airflow with the effect according to any one of the second to eighth aspects can be passed through the humidifier, and the humidification efficiency is improved.
[Brief description of the drawings]
FIG. 1 is a plan view showing a heat exchange ventilator according to an embodiment.
FIG. 2 is an exploded perspective view of the heat exchange ventilator according to the embodiment.
FIG. 3 is a side view of the heat exchange ventilator according to the embodiment.
FIG. 4 is a perspective view showing a humidification unit of the embodiment.
FIG. 5 is a perspective view showing a heat exchange ventilation apparatus and a humidifier according to the embodiment.
FIG. 6 is a perspective view showing a mounted state of the heat exchange ventilator and the humidifier according to the embodiment.
FIG. 7 is a perspective view showing components of a water supply system of the humidifier according to the embodiment.
FIG. 8 is a perspective view showing a filter unit according to the embodiment.
FIG. 9 is a cross-sectional view of a conventional heat exchange ventilator.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Heat exchanger, 2 Casing, 3 Fluid passage, 4 Supply air blower, 5 Supply air ventilation path, 6 Fluid passage, 7 Exhaust air blower, 8 Exhaust ventilation passage, 12 Outer air inlet, 16 Outer air outlet, 25 Chambers Inner suction port, 26 indoor side air outlet, 30 window, 31 closing plate, 32 humidifier unit, 34 humidifier, 36 long hole, 37 drain pan, 40 detour, 41 water supply pipe, 42 drain pipe, 43 water stop valve, 46 Deodorizing filter, 47 Filter unit.

Claims (9)

A part of the path is constituted by one fluid passage of a laminated hexahedral heat exchanger built in a hexahedron-shaped casing, and an air supply passage through which an air flow from the outside to the room is blown by a blower. A heat provided with an exhaust ventilation path that is independent of the supply air ventilation path over the entire path, part of the path is constituted by the other fluid passage of the heat exchanger, and allows the air flow from the room to the outside by the blower. An exchange ventilator, wherein the heat exchanger is disposed in the casing so that one fluid passage and the other fluid passage intersect in a substantially horizontal direction and a substantially vertical direction, and the fluid of the heat exchanger The blower that forms a supply air flow is disposed on one side of both small openings where the passage does not face, the blower that forms an exhaust flow is disposed on the other side, and an indoor side blower that is an outlet end of the supply air passage At the outlet and the inlet end of the exhaust ventilation path. A fluid passage that constitutes the air intake passage of the heat exchanger in the casing, the indoor air inlet being separated from the lower surface of the casing facing the opening surface of one fluid passage of the heat exchanger A heat exchange ventilator provided with a functional unit for improving air quality on one side faced by the outlet side of the air outlet so as to be openable and closable with a window that can be attached to the air supply passage in the casing .   The heat exchange ventilator according to claim 1, wherein a detour of the air supply ventilation path is configured at a window of the opened casing, and a humidification unit as a functional unit provided with a humidifier in the detour is provided. Equipped with heat exchange ventilator.   The heat exchange ventilator according to claim 1, wherein a bypass path of the supply air ventilation path is configured at the opened casing window, and a filter unit as a functional unit provided with a filter is installed in the bypass path Heat exchange ventilator.   The heat exchange ventilator according to claim 3, wherein the filter is a deodorizing filter.   The heat exchange ventilator according to any one of claims 2 to 4, wherein a supply airflow is circulated from a substantially vertical direction to a humidifier or a filter in a detour.   It is a heat exchange ventilator of Claim 2, Comprising: The heat exchange ventilator which provided the water stop valve provided in the water supply pipe connected to a humidifier in the drain receptacle provided in the lower part of the humidifier.   The heat exchange ventilator according to any one of claims 2 and 6, wherein the attachment angle between the casing window and the humidifying unit can be adjusted.   8. A heat exchange ventilator according to claim 2 or claim 6 or claim 7, wherein a drain pipe and a drain valve provided in a water supply pipe connected to the humidifier are provided in a lower part of the humidifier. Heat exchange ventilator installed inside.   It is a heat exchange ventilator in any one of Claim 2-8, Comprising: The ventilation path of an air supply ventilation path passes through a heat exchanger through a fan from an outdoor inlet, passes through a functional unit, and is passed through a functional unit. Heat exchange ventilator configured to reach the inner outlet.

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