JP2006189225A - Air treatment device for cooking, and system kitchen provided with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air treatment device for cooking capable of treating the exhaust generated in heating cooking or the like by surely implementing heat recovering and dehumidification by a simple means, and to provide a system kitchen comprising the air treatment device for cooking. <P>SOLUTION: This air treatment device 1 for cooking, treating the exhaust generated during heating cooking by a heating cooker 22 mounted on a floor cabinet 10 of the system kitchen 2 comprising water supply pipes 18, 18a, 18b and drain pipes 20, 20a, 20b, comprises an air path inlet 25 to which the exhaust is introduced, an air supply opening 44 to which the exhaust treated by the air treatment device for cooking is led out, an air passage 24 connecting the inlet and the outlet, an air blower 26 for controlling the movement of the exhaust, and a water cooling type heat exchanger 28 incorporated in the floor cabinet 10. The water cooling-type heat exchanger is constituted to implement heat exchange of the exhaust in the air passage by utilizing water supply and drainage by the water supply pipe 18b and the drain pipe 20b of the system kitchen. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a cooking air treatment device and a system kitchen provided with the cooking air treatment device, and in particular, cooking air for treating exhaust gas containing moisture and oil generated when cooking foods. The present invention relates to a processing apparatus and a system kitchen provided with the cooking air processing apparatus.

Conventionally, a range hood having an exhaust port for discharging smoke and odor generated during cooking to the outside is attached above a cooking device used in a kitchen or the like. In such a conventional range hood, the exhaust port is installed on the wall so that it faces the outside, but a hole for the exhaust port is made in the wall so that it does not overlap with the brace of the house or the beam. However, there is a problem that the installation position is limited by an environment such as a floor plan of an installation place, such as constructing an exhaust duct leading to a common exhaust port on the back of the ceiling of each building.
As a cooking air treatment apparatus that solves such problems, for example, as described in Patent Document 1, a range hood that exhausts exhaust to the indoor side without exhausting it to the outside is known. In this range hood, for exhaust gas generated by cooking and passing through a predetermined air passage, oil with large particles is removed with a grease filter, and then the heated exhaust gas is turned into a water film that circulates in the air passage. While passing through and cooling, the oil in the exhaust gas is washed away with water and purified.
However, in the range hood described in Patent Document 1, a water film (cooling means) that cools the exhaust gas is disposed in the hood located above the user and exposed in the air passage. Therefore, there is a problem that water vapor in the exhaust gas is not recovered and dehumidification is not performed.
Furthermore, as a cooking air treatment device, Patent Document 2 discloses a kitchen air treatment device that cools exhaust gas with a cooler and circulates the dehumidified air in a room by attaching moisture contained in the exhaust gas to the cooler surface. It is disclosed.
However, in the kitchen air treatment device described in Patent Document 2, the exhaust is cooled and condensed by a cooler constituting the refrigerant cycle, but the exhaust heat due to such heat exchange is recovered. Without being discharged into the room. Therefore, there is a problem that the indoor temperature rises as the exhaust gas circulation proceeds.
In addition, the air treatment device for a kitchen described in Patent Document 2 has an air treatment device main body having an accessory such as a cooler and a compressor located above the user, and is large and heavy. Is constrained. Furthermore, there is a problem that it is difficult to use it for home use because it is costly in terms of power.

Japanese Utility Model Publication No. 61-63634 (pages 4 to 8, FIGS. 1 and 2) JP-A-2004-28493 (pages 4 to 12, FIGS. 1 to 12)

In the conventional cooking air treatment apparatus described above, it is a problem to reliably perform heat recovery and dehumidification by simple means for the exhaust generated during cooking.
Therefore, the present invention has been made to solve the above-described problems of the prior art, and for exhaust gas generated by heating cooking or the like, cooking is performed by reliably performing heat recovery and dehumidification by simple means. It aims at providing the system kitchen provided with the air treatment apparatus and the air treatment apparatus for cooking.
In addition, the present invention provides a cooking air treatment device that keeps an indoor air environment comfortable by purifying exhaust generated by heat cooking etc. by performing heat recovery and dehumidification in a predetermined path, and cooking air. The object is to provide a system kitchen equipped with a processing device.
Furthermore, the present invention aims to provide a cooking air treatment device that is small and can be freely installed around the kitchen and used for home use, and a system kitchen including the cooking air treatment device. Yes.

In order to achieve the above object, a first aspect of the present invention is a cooking air treatment for treating exhaust gas generated during cooking by heating cooking means arranged in a floor cabinet of a system kitchen having water supply / drainage means. A device that controls the movement of the exhaust, the inlet through which the exhaust is introduced, the outlet through which the exhaust processed by the cooking air treatment device is derived, the air path that connects the inlet and the outlet, and And a heat exchanging means incorporated in the floor cabinet. The heat exchanging means performs heat exchange of the exhaust gas in the air passage using water supply / drainage by the water supply / drainage means of the system kitchen. It is characterized by being configured.
In this invention comprised in this way, the exhaust_gas | exhaustion generate | occur | produced during heat cooking is sent to the exit from an inlet of an air path by a ventilation means. Further, the exhaust gas passing through the air passage is heat-exchanged by the heat exchanging means using the water supply / drainage by the water supply / drainage means of the system kitchen.
According to the present invention, since the heat exchanging means is incorporated in the floor cabinet of the system kitchen provided with the water supply / drainage means, the simple means using the water supply / drainage of the water supply / drainage means provided in the floor cabinet for the exhaust generated during cooking. Thus, heat exchange can be performed accurately.

  In the present invention, it is preferable that a pipe line communicating with the water supply / drainage means is provided, and the water in the pipe line cools and condenses the exhaust gas. As a result, the exhaust gas generated during cooking can be processed by performing accurate heat recovery and dehumidification through a predetermined path.

  In the present invention, it is preferable to further have a drainage means that is disposed in the floor cabinet and drains the condensate condensed by the heat exchange means to the outside. Thereby, dehumidification of exhaust can be performed reliably.

  In this invention, it is preferable that the flow volume adjustment means for adjusting the flow volume of the water supplied to the pipe line of a heat exchange means from the water supply source of a water supply / drainage means is provided.

In the present invention, the flow rate adjusting means preferably includes a pressure reducing valve.
As a result, water can be accurately supplied from the water supply source of the water supply / drainage means to the conduit of the heat exchange means, and the heat recovery and dehumidification of the exhaust gas can be accurately performed and processed.

  In the present invention, it is preferable that the flow rate adjusting means further has a water stop function and has a switch for turning on and off the water stop function. Thereby, the water stop by a flow volume adjustment means can be performed arbitrarily.

  In this invention, it is preferable that the heat exchange means is provided with the pipe member which forms a pipe line, and the fin member formed in this pipe member. As a result, the exhaust gas can be treated by performing heat recovery and dehumidification through reliable heat exchange of the exhaust gas.

  In the present invention, on the downstream side of the pipe line of the heat exchange means, a circulation water path for circulating the water in the pipe line to the upstream side of the heat exchange means is provided, and this circulation water path is provided with a pressure feeding means. It is preferable. Thereby, heat recovery and dehumidification are performed by reliable heat exchange of the exhaust to treat the exhaust, and water saving effect is obtained for water used for heat exchange.

  In the present invention, it is preferable to further have a detecting means for detecting the temperature or humidity of the exhaust gas. As a result, the exhaust gas can be treated by performing heat recovery and dehumidification through reliable heat exchange of the exhaust gas.

  In this invention, it is preferable to have a control means which controls a ventilation means, a flow volume adjustment means, or a pumping means further based on the information which the detection means detected. As a result, the exhaust gas can be treated by performing heat recovery and dehumidification through reliable heat exchange of the exhaust gas.

  The second invention of the present invention is a system kitchen provided with the cooking air treatment device of the first invention. Thereby, about the exhaust_gas | exhaustion generate | occur | produced during cooking, heat exchange can be accurately performed and processed by a simple means.

  In the present invention, the system kitchen includes a floor cabinet, a counter, a sink, and a faucet, and the downstream side of the conduit of the heat exchange means is connected to a drain that branches off from the drain of the sink. It is preferable. Thereby, about the exhaust_gas | exhaustion generate | occur | produced during cooking, heat exchange can be accurately performed and processed by a simple means.

  In the present invention, the system kitchen includes a floor cabinet, a counter, a sink, and a faucet, and the upstream side of the conduit of the heat exchanging means is connected to a water supply passage branched from the water supply pipe of the faucet. Preferably it is. Thereby, about the exhaust_gas | exhaustion generate | occur | produced during cooking, heat exchange can be accurately performed and processed by a simple means.

  A third aspect of the present invention is a cooking air treatment apparatus for treating exhaust generated during cooking, wherein the exhaust introduced into the exhaust and the exhaust treated by the cooking air treatment apparatus are derived. The air outlet, the air passage connecting the inlet and the outlet, the air blowing means for controlling the movement of the exhaust, and the heat exchanging means for exchanging heat of the exhaust in the air passage. The means is characterized in that it is incorporated in the floor cabinet.

According to the cooking air treatment device of the present invention and the system kitchen provided with the cooking air treatment device, the exhaust generated by heating cooking or the like is reliably treated by heat recovery and dehumidification by simple means. Can do.
Moreover, according to the cooking air treatment device of the present invention and the system kitchen equipped with the cooking air treatment device, the exhaust generated by heating cooking or the like is purified by heat recovery and dehumidification through a predetermined path. Thus, the indoor air environment can be kept comfortable.
Furthermore, according to the cooking air treatment device of the present invention and the system kitchen provided with the cooking air treatment device, it is small and can be freely installed around the kitchen and used for home use.

Hereinafter, an embodiment of a cooking air treatment device of the present invention and a system kitchen provided with the cooking air treatment device will be described with reference to the accompanying drawings.
FIG. 1 is a schematic perspective view showing a system kitchen provided with a cooking air treatment device according to the first embodiment of the present invention, and FIG. 2 is a side sectional view of the cooking air treatment device according to the first embodiment of the present invention. FIG.
As shown in FIG. 1, the system kitchen 2 includes a cooking air treatment device 1 according to the present embodiment, a counter 4, a cooking table 6, and a wall cabinet (storage) provided above the counter 4 and the cooking table 6. Room) 8, cooking air treatment device 1, counter 4 and floor cabinet (storage room) 10 disposed on the floor below cooking table 6, and cooking air treatment device 1 adjacent to cooking table 6. It is comprised by the heat cooking apparatus 22 integrated integrally.
The counter 4 includes a sink 12, a faucet 14 that adjusts the amount of water supplied into the sink 12, and a sink drain port 16 through which water in the sink 12 is drained. The faucet 14, which is a facility provided in the floor cabinet 10, is connected to a sink water supply pipe 18 a branched from an upstream water supply pipe 18 that leads to a water supply source (water supply) 15, and the sink drain 16 is connected to a sink drain pipe The sink drain pipe 20a is connected to the downstream drain pipe 20 connected to the sewer (not shown). The cooking device 22 may be a type that is placed on the floor cabinet 10.

Below, the detail of the air processing apparatus 1 for cooking of this embodiment is demonstrated.
As shown in FIG. 2, the cooking air treatment device 1 is installed in an air passage 24 into which exhaust generated during cooking by the cooking device 22 is introduced, and in the floor cabinet 10 below the cooking device 22. A blower 26 and a water-cooled heat exchanger 28 provided in the air passage 24 in the floor cabinet 10 are provided.
Exhaust gas containing steam (steam) and oil generated by heating of the heating unit 22a of the cooking device 22 is sucked from the inlet 25 of the air passage 24 as shown by arrows in FIG. Then, the air passes through the air passage 24, flows upward from the periphery of the cooking portion 22, and is sent to the room 30.
More specifically, the inlet 25 of the air passage 24 is disposed above the counter 4 with a space therebetween, and the exhaust gas introduced from the inlet 25 is disposed below the counter 4 and is a water-cooled heat exchanger 28. The air passes through the blower 26 and is led out from an air outlet 44 disposed in the vicinity of the counter 4. The order of the water-cooled heat exchanger 28 and the blower 26 may be reversed, but even in that case, they are arranged below the counter 4. The movement of the exhaust as described above is controlled by the blower 26.
In addition, a grease filter 32 is attached to the inlet 25 of the air passage 24, and the oil component in the exhaust gas sucked into the air passage 24 is collected by the grease filter 32. Furthermore, in order to collect the oil content in the exhaust gas more reliably, it is preferable to provide a centrifugal oil recovery device 33 having irregularities on the inside of the casing of the blower 26. About the grease filter 32 and the oil recovery device 33 May omit either one.

Further, as the water-cooled heat exchanger 28, it is preferable to use a fin-and-tube heat exchanger, a corrugated fin heat exchanger, or the like. These heat exchangers are configured to include a water pipe 34 and fins 37 that are provided in close contact with the surface of the water pipe 34 and are formed to increase the surface area in order to contact exhaust. Thus, heat exchange is possible with a small amount of water passing through the water pipe 34.
Further, the upstream side of the water pipe 34 is connected to the heat exchanger water supply pipe 18b branched from the water supply pipe 18 to the sink water supply pipe 18a, and the heat exchanger passes through the heat exchanger water supply pipe 18b from the water supply pipe 18. Water is supplied into the water supply pipe 18b.
Furthermore, the downstream side of the water pipe 34 is connected to a heat exchanger drain pipe 20b that joins the sink drain pipe 20a and communicates with the downstream drain pipe 20, and the water that flows through the water pipe 34 is subjected to heat exchange. The water is drained into the downstream drainage pipe 20 through the drainage pipe 20b.
In the cooking air treatment apparatus 1 of the present embodiment, when the exhaust in the air passage 24 passes through the fins 37 and the surface of the water pipe 34 of the water-cooled heat exchanger 28, this exhaust is indirectly connected to the water in the water pipe 34. It is cooled and condensed by mechanical contact. The condensed condensate (condensation) 35 is collected at a predetermined location below the water-cooled heat exchanger 28 and drained to the outside of the apparatus 1 or joined into the heat exchanger drain pipe 20b. It is supposed to be drained. At this time, since the drain trap is connected between the heat exchanger drain pipe 20b and the sink drain port 16, there is no need to provide a dedicated trap for the cooking air treatment device 1.

Moreover, in the cooking air treatment device 1 of the present embodiment, the water stop valve 36 is provided in the heat exchanger water supply pipe 18b connected to the upstream side of the water pipe 34 of the water-cooled heat exchanger 28. The flow rate of water supplied to the water pipe 34 of the water-cooled heat exchanger 28 can be adjusted as desired by adjusting the opening degree of the water stop valve 36.
As the water stop valve 36, it is preferable to use a pressure reducing valve that can set the water pressure resistance of the water pipe 34 low and reduce the wall thickness of the water pipe 34 to increase the thermal conductivity.
Further, in the cooking air treatment apparatus 1, a water stop valve operation switch 38 that turns on and off the water stop function of the water stop valve 36 and a blower switch 40 that turns on and off the operation of the blower 26 are provided independently. The amount of water supplied to the inside and the amount of exhaust air blown by the blower 26 can be adjusted independently.
Further, a deodorizing filter 42 provided with a catalyst is provided on the downstream side of the blower 26 in the air passage 24, and the exhaust gas in the air passage 24 is deodorized by passing through the deodorizing filter 42. Yes.
Furthermore, an air outlet 44 is provided at the downstream end of the air passage 24 (around the cooking device 22), and the air that has passed through the deodorizing filter 42 flows from the air outlet 44 toward the inlet 25 of the air passage 24. It is blown out and sent to the room 30. Further, exhaust gas newly generated by cooking by the heating cooking device 22 is sucked into the air passage 24 from the air passage inlet 25.

Next, the operation (action) of the cooking air treatment device 1 according to the first embodiment of the present invention will be described.
When the blower 26 is activated by operating the blower switch 40, the hot and humid exhaust gas including steam (steam) and oil generated during heating cooking by the heating of the heating unit 22 a of the cooking device 22 is input to the air passage 24. 25, the oil component in the exhaust gas is sucked into the air passage 24 while being recovered. This exhaust gas flows through the air passage 24 and passes through the water-cooled heat exchanger 28.
When the exhaust gas passes through the water-cooled heat exchanger 28, water supplied from the water supply pipe 18 through the heat exchanger water supply pipe 18b flows in the water pipe 34 of the water-cooled heat exchanger 28, and the exhaust gas is water-cooled. When the heat exchanger 28 comes into contact with the surfaces of the fins 37 and the water pipes 34, it is indirectly cooled by the water in the water pipes 34, and the water vapor in the exhaust is condensed on the surfaces of the fins 37 and the water pipes 34. 35.
Further, the water in the water pipe 34 that has cooled the exhaust is drained into the downstream drain pipe 20 through the heat exchanger drain pipe 20b. In addition, since the waste water from this water pipe 34 to the heat exchanger drain pipe 20b is purified water supplied from the water supply, before it is discharged into the drain pipe 20, a dishwasher installed in the kitchen 2 (FIG. (Not shown) or a sink 12 or the like, and may be used for washing water or the like.
Further, the dew condensation 35 due to the condensation of the exhaust is collected at a predetermined location below the water-cooled heat exchanger 28 and drained to the outside of the cooking air treatment device 1 or joined into the heat exchanger drain pipe 20b. Drained.
The exhaust gas thus heat-recovered and dehumidified passes through the deodorizing filter 42 and is sent to the room 30 from the air outlet 44 as deodorized and purified air. Further, as long as the blower 26 is operating, the exhaust gas newly generated by the cooking by the cooking device 22 is sucked into the air passage 24 from the air passage inlet 25.

When the cooking device 22 is not used, the water stop valve 36 of the heat exchanger water supply pipe 18b is closed so that water does not flow into the water pipe 34 of the water-cooled heat exchanger 28. In addition, depending on the use status of the cooking air treatment device 1 such as during and immediately after use of the cooking device 22, cooking contents, season (room temperature environment), etc., is water supplied to the heat exchanger 34 to cool the exhaust water? The user arbitrarily determines whether or not, and independently of the operation of the blower 26, the opening and closing of the water stop valve 36 is appropriately selected, and the water stop valve 36 is operated by the water stop valve operation switch 38.
For example, in the summer, when it is desired to suppress an increase in the temperature and humidity of the room 30 such as when the room 30 of the system kitchen 2 is being cooled, the water stop valve 36 is opened and the water pipe 34 of the heat exchanger 34 is opened. Supply water and cool the exhaust to dehumidify. On the other hand, when it is desired to warm and humidify the room 30 in the kitchen 2 in winter, the water stop valve 36 is closed to stop water supply into the water pipe 34 of the heat exchanger 34, and cooling and dehumidification of the exhaust is not performed. The water vapor from which the oil and odor in the exhaust gas are recovered is sent to the room 30.

According to the cooking air treatment device 1 according to the first embodiment of the present invention described above, since the water-cooled heat exchanger 28 is incorporated in the floor cabinet, the heat exchanger water supply pipe 18 b that communicates with the water supply source 15 of the counter 4. The water-cooled heat exchanger 28 can be supplied and drained by a simple means using the heat exchanger drain pipe 20b or the like that joins the sink drain pipe 20a. As a result, the exhaust gas generated by cooking and the like can be purified by simply performing heat recovery and dehumidification only by the water-cooled heat exchanger 28 through a predetermined path. Moreover, the air environment of the room 30 can be kept comfortable. Furthermore, since the compressor etc. normally used for a refrigerant cycle become unnecessary, the whole apparatus can be reduced in size and can be freely installed around a kitchen and can be used for home use.
Moreover, according to the cooking air treatment device 1 of the present embodiment, since the water-cooled heat exchanger 28 is incorporated in the floor cabinet 10, the water supply and drainage used for the water-cooled heat exchanger 28 is cooked. The water supply / drainage of the counter 4 adjacent to the industrial air treatment device 1 can be shared. As a result, the piping path required for the water supply / drainage of the heat exchanger water supply pipe 18b and the heat exchanger drainage pipe 20b can be shortened, so that the construction can be simplified. The water pressure can also be kept lower than that of a conventional device located above the user. Moreover, simultaneous use with the faucet 14, a dishwasher, etc. in a kitchen is considered, and a required water pressure is obtained in that case. And even if it leaks from a water supply pipe or a drain pipe, there is no danger that a user and a heating apparatus will be splashed with water, and damage can be minimized. Furthermore, the space required for the entire system kitchen 2 including the cooking air treatment device 1 can be reduced. Moreover, when renovating a kitchen, etc., piping work can be easily performed using an existing water supply / drainage pipe in the kitchen.
Furthermore, according to the cooking air treatment device 1 of the present embodiment, since the pressure reducing valve is used as the water stop valve 36 of the heat exchanger water supply pipe 18b, the water pressure resistance of the water pipe 34 is set low, and the water pipe The thickness of 34 can be reduced to increase the thermal conductivity. Therefore, the water-cooled heat exchanger 28 can be downsized and the amount of heat recovered from the exhaust can be increased.
Moreover, according to the cooking air treatment device 1 of the present embodiment, the blower 26 is installed in the floor cabinet 10 below the cooking device 22, and the electrical system such as the cooking device 22 and the blower 26 is connected to the floor cabinet 10. Since it can be made to collect in, the space above the cooking-by-heating apparatus 22 can be made compact. Furthermore, there is an effect that even a short person or an elderly person can easily operate the switch.

In addition, in the cooking air processing apparatus 1 of this embodiment, it is not limited to a form as shown in FIG.1 and FIG.2, For example, as shown in FIG. 3, exhaust heat recovery and dehumidification are more effective. The present invention is also applicable to other modifications configured to be performed.
FIG. 3 is a side cross-sectional view similar to FIG. 2, showing a modification of the cooking air treatment device according to the first embodiment of the present invention. Here, in FIG. 3, the same parts as those in FIG. 2 are denoted by the same reference numerals, and description thereof is omitted.
As shown in FIG. 3, in the modified example of the cooking air treatment device 1 according to the first embodiment, the water-cooled heat exchanger 28 is installed to be inclined with respect to the vertical direction as compared with the first embodiment described above. A protrusion 34 a is formed at the lowermost part of the water pipe 34 or the fin 37 of the water-cooled heat exchanger 28 so as to protrude downward. As a result, the condensate (condensation) 35 adhering to the water pipe 34 or the fins 37 of the water-cooled heat exchanger 28 easily falls to the bottom surface of the air passage 24, and heat recovery and dehumidification of the exhaust gas by the water-cooled heat exchanger 28 are performed. Can be performed more effectively.
In the present embodiment, the back surface of the drive motor 26 a of the blower 26 is in contact with the water pipe 34 or the fin 37 of the water-cooled heat exchanger 28. Thereby, the exhaust heat of the drive motor 26 a of the blower 26 can also be recovered by the water pipe 34 or the fin 37 of the water-cooled heat exchanger 28.
Further, in the heat exchanger drain pipe 20b, a water storage tank 46 is provided upstream of the location where the condensate (condensation) 35 joins, and the water in the water flow pipe 34 is temporarily stored in the water storage tank 46. ing. Thereby, when the cooking air treatment device 1 is not used at night or the like, the water stored in the water storage tank 46 can be naturally cooled, and this water can be reused when cooling the exhaust.
In the first embodiment, the case where the exhaust gas is cooled and condensed by indirect contact with the water in the water flow pipe 34 is described. However, the water supplied from the heat exchanger water supply pipe 18b is supplied to the air passage. It may be sprayed directly into 24 so that the exhaust and water are cooled and condensed by direct contact. In this case, it is possible to efficiently cool and condense with a smaller amount of water as compared with a device that makes direct contact with a conventional water film. A smaller amount of water means less water exposure to the airway.

FIG. 4 is a side cross-sectional view similar to FIGS. 2 and 3, showing a cooking air treatment device according to a second embodiment of the present invention. Here, in FIG. 4, the same parts as those in FIGS. 2 and 3 are denoted by the same reference numerals, and description thereof is omitted.
As shown in FIG. 4, in addition to the structure of the cooking air treatment apparatus 1 of 1st Embodiment, the cooking air treatment apparatus 50 of this embodiment branches from the heat exchanger drain pipe 20b, and heat exchanger water supply A circulation channel pipe 52 connected to the pipe 18b and a circulation pump 54 provided in the circulation channel pipe 52 are provided. The water in the heat exchanger drain pipe 20b that has passed through the water pipe 34 is circulated by being pumped by the circulation pump 54 to the heat exchanger water supply pipe 18b through the circulation water pipe 52.
In addition, a water supply side three-way valve 56 is provided at a connection portion (merging portion) A between the circulation water channel pipe 52 and the heat exchanger water supply pipe 18b, and a connection portion between the circulation water pipe 52 and the heat exchanger drain pipe 20b ( A drainage side three-way valve 58 is provided at the branch portion B.
Further, the cooking air treatment device 50 detects the indoor temperature sensor 60 and the indoor humidity sensor 62 that detect the temperature T _A and the humidity H _A of the room 30, and the temperature T _B and the humidity H _B of the air path 24, respectively. and an air passage temperature sensor 64 and the air path the humidity sensor 66, a water supply temperature sensor 68 for detecting the water temperature T _C of Tomesuiben (pressure reducing valve) upstream of the heat exchanger water pipe 18b than 36, the branch portion a drain temperature sensor 70 for detecting the effluent temperature T _D slightly in the upstream side of the heat exchanger discharge pipe 20b than B, based on the information from these sensors 60,62,64,66,68,70, blower 26 , A pressure reducing valve 36, a circulation pump 54, a water supply side three-way valve 56, and a drainage side three-way valve 58.

Next, an example of the contents of control by the control device 72 of the cooking air treatment device 50 of the present embodiment will be specifically described.
FIG. 5 is a circuit diagram schematically showing a control circuit related to the control device 72 of the cooking air treatment device 50 of the present embodiment, and FIG. 6 is a flowchart specifically showing the flow of the control content by the control device 72. is there. Here, “S” in FIG. 6 indicates each step.
For the blower 26, the pressure reducing valve 36 can be switched to three, large, medium, and small opening degrees by the blower switch 40 or according to the three levels of low, medium, and strong airflow levels. FIG. 7 shows the relationship between each air volume level of the blower 26 and the opening of the pressure reducing valve 36.
First, as shown in FIG. 5, in the cooking air treatment device 50 in the initial state (before operation), the pressure reducing valve 36 is closed, and both the water supply side three-way valve 58 and the drain side three-way valve 58 are circulating water channel pipes 52. And the heat exchanger water supply pipe 18b and the heat exchanger drain pipe 20b are opened. Further, both the circulation pump 54 and the blower 26 are stopped.
Next, as shown in FIG. 6, when the user selects a weak, medium, or strong air flow level of the blower at the blower switch 40 in S <b> 1, the blower 26 is activated and the exhaust air is discharged into the air passage 24. It is sent.
Further, in S2, the indoor temperature sensor 60 and the indoor humidity sensor 62 detects the indoor temperature T _A and the indoor humidity H _A, respectively. In parallel, in S3, the air path temperature sensor 64 and the air path humidity sensor 66 detect the air path temperature T _B and the air path humidity H _B , respectively.

Furthermore, in S4, based on the information previously detected in S2 and S3, the indoor temperature / humidity is compared with the air path temperature / humidity to determine whether or not to supply water to the water-cooled heat exchanger 28. Specifically, when the temperature difference (T _A −T _B ) between the room and the air passage is greater than 5 ° C. and the humidity difference (H _A −H _B ) is greater than 10%, the water-cooled heat It is determined to supply water to the exchanger 28, and the process proceeds to S5. Otherwise, it is determined not to supply water to the water-cooled heat exchanger 28, and the process returns to S2.
Next, in S5, the feed water temperature sensor 68 detects the feed water temperature T _C in the heat exchanger feed pipe 18b upstream of the pressure reducing valve 36, and the air passage temperature T _B detected in the feed water temperature T _C and S3. And the amount of water supplied to the water-cooled heat exchanger 28 is determined. Specifically, when the temperature difference T1 (= T _B −T _C ) between the air passage temperature T _B and the feed water temperature T _C is 10 ° C. or less, the process proceeds to S6 and the pressure is reduced regardless of the air flow level of the blower 26. The opening degree of the valve 36 is set to “small”, and the process proceeds to S16 (see FIG. 7).

On the other hand, when the temperature difference T1 (= T _B −T _C ) between the air passage temperature T _B and the feed water temperature T _C is larger than 10 ° C. in S5, the process proceeds to S7. In S7, when the temperature difference T1 is greater than 10 ° C and less than or equal to 20 ° C, the process proceeds to S8, and the air flow level of the operating blower 26 is confirmed.
In S8, when the air flow level of the operating blower 26 is “weak”, the process proceeds to S9, the opening of the pressure reducing valve 36 is set to “small” (see FIG. 7), and the process proceeds to S16. On the other hand, when the air flow level of the operating blower 26 is “medium” or “strong” in S8, the process proceeds to S10, the opening of the pressure reducing valve 36 is set to “medium” (see FIG. 7), and the process proceeds to S16. move on.
In S7, when the temperature difference T1 is larger than 20 ° C., the process proceeds to S11, and the air flow level of the operating blower 26 is confirmed.
In S11, when the air flow level of the blower 26 in operation is “weak”, the process proceeds to S12, the opening of the pressure reducing valve 36 is set to “small” (see FIG. 7), and the process proceeds to S16. On the other hand, when the air volume level of the operating blower 26 is “medium” in S11, the process proceeds from S13 to S14, the opening of the pressure reducing valve 36 is set to “medium” (see FIG. 7), and the process proceeds to S16. . Furthermore, in S11, when the air volume level of the operating blower 26 is “strong”, the process proceeds from S13 to S15, the opening degree of the pressure reducing valve 36 is set to “large” (see FIG. 7), and the process proceeds to S16. .

Next, in S16, the waste water temperature sensor 70 detects the waste water temperature T _D in the heat exchanger drain pipe 20b slightly upstream from the branching section B, and the water supply temperature T detected in the waste water temperature T _D and S5. _C is compared, and the amount of water to be circulated in the circulating water pipe 52 is determined. Specifically, when the temperature difference T2 (= T _D −T _C ) between the drainage temperature T _D and the feed water temperature T _C is 10 ° C. or less, the process proceeds to S17, and the pressure reducing valve 36 is closed and the feed side The three-way valve 56 opens the circulating water channel pipe 52 of the junction A and closes the water supply from the upstream heat exchanger water supply pipe 18b. Further, the drain side three-way valve 58 opens the circulation water channel pipe 52 of the branch portion B, and closes the downstream heat exchanger drain pipe 20b. Further, in parallel, the circulation pump 54 is pumped at a high speed for a predetermined time, and the process returns to S2. The process is repeated until the switch is turned off or the timer is turned off. When turned OFF, it returns to the initial state.
On the other hand, when the temperature difference T2 (= T _D −T _C ) between the drainage temperature T _D and the feed water temperature T _C is greater than 10 ° C. and less than 20 ° C. in S16, the process proceeds from S18 to S19. The opening degree is maintained in the state of S16, the water supply side three-way valve 56 opens the circulating water channel pipe 52 of the junction A, and water is supplied from the upstream heat exchanger water supply pipe 18b. In addition, the drain side three-way valve 58 opens the circulation water channel pipe 52 of the branch part B, opens the downstream heat exchanger drain pipe 20b, and drains the downstream side. In parallel, the pumping operation is performed at a low speed for a predetermined time with respect to the circulation pump 54, and the process returns to S2. The process is repeated until the switch is turned off or the timer is turned off. When turned OFF, it returns to the initial state.
In S16, when the temperature difference T2 (= T _D −T _C ) between the drainage temperature T _D and the feed water temperature T _C is larger than 20 ° C., the opening of the pressure reducing valve 36 is maintained in the state of S16 to supply water. The side three-way valve 56 closes the circulating water channel pipe 52 of the junction A, and supplies water from the upstream heat exchanger water supply pipe 18b. Further, the drain side three-way valve 58 closes the circulation water channel pipe 52 of the branch part B, opens the downstream heat exchanger drain pipe 20b, and drains downstream. In parallel, the pumping operation of the circulation pump 54 is stopped, and the process returns to S2. The process is repeated until the switch is turned off or the timer is turned off. When turned OFF, it returns to the initial state.

  According to the cooking air treatment device 50 according to the second embodiment of the present invention described above, the temperature and humidity in the room 30 and the air passage 24 detected by the sensors 60, 62, 64, 66, 68, and 70 and water-cooled heat. Based on the water temperature on the water supply / drainage side of the exchanger 28, the amount of water supplied to the water-cooled heat exchanger 28 can be controlled. Therefore, heat recovery and dehumidification can be accurately performed on the exhaust generated by cooking, and the indoor air environment can always be kept comfortable. In addition, when the circulating water channel pipe 52 is passed, heat exchange by the water-cooled heat exchanger 28 is possible with a smaller amount of water, and a water saving effect is obtained.

FIG. 8 is a schematic view showing a part of a water-cooled heat exchanger in the cooking air treatment device of the third embodiment of the present invention. Here, in FIG. 8, the same parts as those in the second embodiment described above are denoted by the same reference numerals, and the description thereof is omitted.
As shown in FIG. 8, in the cooking air treatment device 80 according to the third embodiment of the present invention, a plurality of first to third water-cooled heat exchangers 28a, 28b, 28c having the same configuration are provided in parallel. This is different from the configuration of the second embodiment in that it is configured.
In addition, assuming that the portions branching to the heat exchangers 28a, 28b, and 28c in the heat exchanger water supply pipe 18b are branch portions C and D, respectively, a first regulating valve 82a is provided on the upstream side of the branch portion C. A second adjustment valve 82b is provided between the branch part C and the branch part D, and a third adjustment valve 82c is provided downstream of the branch part D.

In the cooking air treatment device 80 according to the third embodiment of the present invention described above, the air passage temperature detected by the air passage temperature sensor 64 when a predetermined amount of water is supplied from the water supply source 15 to the heat exchanger water supply pipe 18b. Depending on the temperature difference T1 (= T _B −T _C ) based on T _B and the feed water temperature T _C detected by the feed water temperature sensor 68 and the set air volume level of the blower 26, the opening degree of each of the regulating valves 82a, 82b, 82c is Each is adjusted. As a result, the distribution ratio of the amount of water supplied to each heat exchanger 28a, 28b, 28c is set, and the heat exchange rate of each heat exchanger 28a, 28b, 28c is set.
According cooking air treatment system 80 of the present embodiment, compared to using a single water-cooled heat exchangers, the set air volume level of the temperature difference T1 and the blower 26 of the air passage temperature T _B and the feed water temperature T _C Accordingly, the heat exchange rate of each heat exchanger 28a, 28b, 28c can be set as desired. Therefore, even when the amount of water supplied to the heat exchanger water supply pipe 18b from the water supply source 15 is constant, the distribution ratio of the amount of water supplied to each heat exchanger 28a, 28b, 28c is adjusted as desired to The heat recovery and dehumidification can be adjusted accurately.
In addition, although this embodiment demonstrated the form which provided the several heat exchanger 28a, 28b, 28c in the one air path 24, it is not limited to such a form, Each heat exchanger 28a, 28b, 28c For example, in the case of a specific exhaust temperature or humidity, the air path is switched according to the state of the exhaust so that the exhaust passes only through the specific air path. Good.

  In addition, in the 1st-3rd embodiment mentioned above, the system kitchen provided with the air processing apparatus for cooking was attached to the wall surface, and the form of the system kitchen which a user uses a system kitchen on the front side was demonstrated. However, the present invention is not limited to such a form, and can be applied to other forms such as a so-called island type system kitchen in which the user can use the system kitchen from four directions.

It is a schematic perspective view which shows the system kitchen provided with the air processing apparatus for cooking of 1st Embodiment of this invention. It is side surface sectional drawing of the air processing apparatus for cooking by 1st Embodiment of this invention. It is side surface sectional drawing similar to FIG. 2 which shows the modification of the cooking air processing apparatus by 1st Embodiment of this invention. It is side surface sectional drawing similar to FIG.2 and FIG.3 which shows the cooking air processing apparatus by 2nd Embodiment of this invention. It is a circuit diagram which shows roughly the control circuit regarding the control apparatus of the cooking air treatment apparatus by 2nd Embodiment of this invention. It is a flowchart which shows concretely the flow of the control content of the control apparatus in the air processing apparatus for cooking of 2nd Embodiment of this invention. It is a figure which shows the relationship between each airflow level of the air blower in the cooking air processing apparatus of 2nd Embodiment of this invention, and the opening degree of a pressure-reduction valve. It is the schematic which shows the part of the water cooling type heat exchanger in the air processing apparatus for cooking of 3rd Embodiment of this invention.

Explanation of symbols

1, 50, 80 Cooking air treatment device 2 System kitchen 4 Counter 6 Cooking table 8 Wall cabinet 10 Floor cabinet 12 Sink 14 Faucet 15 Water supply source 16 Sink drain 18 Water supply pipe 18a Sink water supply pipe 18b Heat exchanger water supply pipe 20 Drain pipe 20a Sink drain pipe 20b Heat exchanger drain pipe 22 Cooking device 22a Heating unit 24 Air path 25 Air path inlet 26 Blower 28 Water-cooled heat exchanger 30 Indoor 32 Grease filter 33 Oil recovery device 34 Water pipe 35 Condensation 36 Stop Water valve 37 Fin 38 Water stop valve operation switch 40 Blower switch 42 Deodorizing filter 44 Air outlet 46 Water tank 52 Circulating water pipe 54 Circulating pump 56 Water supply side three-way valve 58 Drain side three way valve 60 Indoor temperature sensor 62 Indoor humidity sensor 64 Air Road temperature sensor 6 6 Air path humidity sensor 68 Water supply temperature sensor 70 Waste water temperature sensor 72 Control device 82a, 82b, 82c Regulating valve

Claims (14)

A cooking air treatment device for treating exhaust generated during cooking by heating cooking means arranged in a floor cabinet of a system kitchen provided with water supply / drainage means,
An inlet through which the exhaust is introduced;
An outlet from which the exhaust gas treated by the cooking air treatment device is derived;
An air passage connecting the inlet and the outlet;
A blowing means for controlling the movement of the exhaust;
Heat exchange means incorporated in the floor cabinet,
The cooking air treatment apparatus according to claim 1, wherein the heat exchange means is configured to perform heat exchange of the exhaust gas in the air passage using water supply / drainage by the water supply / drainage means of the system kitchen.   The cooking air treatment apparatus according to claim 1, wherein the heat exchange means includes a pipe line communicating with the water supply / drainage means, and water in the pipe line cools and condenses the exhaust gas.   Furthermore, the cooking air processing apparatus of Claim 1 or 2 which has a drainage means which drains the condensate which is arrange | positioned in the said floor cabinet and the said heat exchange means condensed outside.   The cooking air treatment device according to any one of claims 1 to 3, further comprising a flow rate adjusting means for adjusting a flow rate of water supplied to the heat exchange means from a water supply source of the water supply / drainage means.   The cooking air treatment device according to claim 4, wherein the flow rate adjusting means includes a pressure reducing valve.   The cooking air treatment device according to claim 4 or 5, wherein the flow rate adjusting means has a water stop function and has a switch for turning on and off the water stop function.   The cooking air treatment apparatus according to any one of claims 2 to 6, wherein the heat exchanging means includes a pipe member that forms the pipe line and a fin member coupled to the pipe member.   2. A circulating water path for circulating the water to the upstream side of the heat exchanging means is provided on the downstream side of the water flowing in the pipe line of the heat exchanging means, and the circulating water path includes a pressure feeding means. The cooking air treatment apparatus according to any one of 1 to 7.   The cooking air treatment device according to any one of claims 1 to 8, further comprising detection means for detecting a temperature or humidity of the exhaust gas.   The cooking air treatment device according to claim 9, further comprising a control means for controlling the air blowing means, the flow rate adjusting means, or the pressure feeding means based on information detected by the detecting means.   The system kitchen provided with the air processing apparatus for cooking of any one of Claims 1 thru | or 10. The system kitchen includes a floor cabinet, a counter, a sink, and a faucet.
The system kitchen according to claim 11, wherein a downstream side of the pipe line of the heat exchange means is connected to a drain line branched from the drain pipe of the sink. The system kitchen includes a floor cabinet, a counter, a sink, and a faucet.
The system kitchen according to claim 11 or 12, wherein an upstream side of a pipe line of the heat exchange means is connected to a water supply path branched from a water supply pipe of the faucet. A cooking air treatment device for treating exhaust generated during cooking,
An inlet through which the exhaust is introduced;
An outlet from which the exhaust gas treated by the cooking air treatment device is derived;
An air passage connecting the inlet and the outlet;
A blowing means for controlling the movement of the exhaust;
Heat exchange means for exchanging heat of the exhaust in the air path,
This heat exchange means is incorporated in a floor cabinet.

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