JP2010151411A - Ventilation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ventilation system performing heat exchange between exhausted air and supplied air. <P>SOLUTION: This ventilation system includes ventilators 130, 230, air conditioners 160, 260, switch dampers 120, 220, and a control device 70. The control device 70 switches a first state and a second state as states of air flow channels by the switch dampers 120, 220. When the state of the air flow channel is the second state, heat exchange is performed between the exhausted air and the supplied air. Further, the control device controls the switching of ventilation modes between a heat exchange ventilation mode and a non-heat exchange ventilation mode. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

    The present invention relates to a ventilation system.

For example, large computers and the like generate a large amount of heat as they operate. Conventionally, a system that effectively uses exhaust heat generated from such heat generating devices has been proposed (Patent Document 1). In this system, air heated by exhaust heat generated from heat generating devices is recovered and used effectively.
JP 2004-138336 A

  In the prior art, exhaust heat is effectively used by directly collecting air heated by heat generating devices. However, the prior art does not include a ventilation device. An object of the present invention is to provide a system capable of coexisting exhaust heat utilization and ventilation in a living room.

  A ventilation system according to a first aspect of the present invention is a ventilation system that ventilates a first chamber and a second chamber different from the first chamber, and includes a first ventilation device and a first switching means. The first ventilation device has first heat exchange means. The first ventilator takes in outside air, sends it to the first chamber as supply air, takes in room air from the first chamber or the second chamber, and discharges it to the outside as exhaust. The first heat exchanging means exchanges heat between the outside air to be supplied and the indoor air to be exhausted. The first switching means switches between a first state in which the room air in the first chamber flows to the first ventilator and a second state in which the room air in the second chamber flows to the first ventilator.

  In this ventilation system, the first switching means switches between a first state in which the room air in the first chamber flows to the first ventilation device and a second state in which the room air in the second chamber flows to the first ventilation device. Further, the first ventilation device has first heat exchange means for performing heat exchange between the air supply and the exhaust. For example, when the first chamber is relatively cold and needs heating, and the second chamber is relatively hot, the first switching means switches the air flow path to the second state. Then, heat exchange is performed between outside air as supply air and room air from the second chamber as exhaust, and supply air supplied with exhaust heat is supplied to the first chamber. For this reason, a part of the exhaust heat of the second chamber is supplied to the first chamber, and the exhaust heat of the second chamber can be used effectively, and at the same time, the first chamber is ventilated.

  The ventilation system according to the second invention is the ventilation system according to the first invention, further comprising a second ventilation device. The second ventilator takes in outside air, sends it to the second chamber as supply air, takes in room air from the second chamber or the first chamber, and discharges it to the outside as exhaust. Furthermore, in the first state, the room air in the second chamber flows to the second ventilator, and in the second state, the room air in the first chamber flows to the second ventilator.

  The ventilation system further includes a second ventilation device. When the air flow path is switched to the first state by the first switching means, the room air in the first chamber flows to the first ventilator, and further the room air in the second chamber flows to the second ventilator. On the other hand, when the air flow path is switched to the second state by the first switching means, the room air in the first chamber flows to the second ventilator, and further the room air in the first chamber flows to the second ventilator. . For this reason, ventilation can be performed for each living room.

  A ventilation system according to a third aspect of the invention is a ventilation system that ventilates a third chamber and a fourth chamber different from the third chamber, and includes a third ventilation device and second switching means. The third ventilation device has third heat exchange means. The third ventilator takes in outside air and sends it to the third or fourth chamber as supply air, takes in room air from the third chamber, and discharges it to the outside as exhaust. The third heat exchanging means exchanges heat between the outside air to be supplied and the indoor air to be exhausted. The second switching means switches between a third state in which the air supply from the third ventilator flows into the third chamber and a fourth state in which the air supply from the third ventilator flows into the fourth chamber.

  In this ventilation system, the second switching means switches between a third state in which the supply air from the third ventilation device flows into the third chamber and a fourth state in which the supply air from the third ventilation device flows into the fourth chamber. . Further, the third ventilation device has a third heat exchange means for performing heat exchange between the air supply and the exhaust. For example, when the fourth chamber is relatively cold and needs heating, and the third chamber is relatively hot, the second switching means switches the air flow path to the fourth state. Then, heat exchange is performed between outside air as supply air and room air from the third chamber as exhaust, and supply air supplied with exhaust heat is supplied to the fourth chamber. For this reason, a part of the exhaust heat of the third chamber is supplied to the fourth chamber, and the exhaust heat of the third chamber can be used effectively, and at the same time, the fourth chamber is ventilated.

  The ventilation system which concerns on 4th invention is a ventilation system which concerns on 3rd invention, Comprising: The 4th ventilation apparatus is further provided. The fourth ventilator takes in the outside air, sends it to the fourth or third chamber as supply air, and takes in the room air from the fourth chamber and discharges it to the outside as exhaust. Further, in the third state, the supply air from the fourth ventilation device flows to the fourth chamber, and in the fourth state, the supply air from the third ventilation device flows to the fourth chamber.

  The ventilation system further includes a fourth ventilation device. When the air flow path is switched to the third state by the second switching means, the supply air from the third ventilation device flows into the third chamber, and the supply air from the fourth ventilation device further flows into the fourth chamber. On the other hand, when the air flow path is switched to the fourth state by the second switching means, the supply air from the third ventilation device flows into the fourth chamber, and the supply air from the third ventilation device further flows into the fourth chamber. Flowing. For this reason, ventilation can be performed for each living room.

  A ventilation system according to a fifth aspect of the present invention is the ventilation system according to the second aspect of the present invention, wherein the first ventilation device includes a heat exchange ventilation mode for exchanging heat between outside air and room air, and outside air and room air. It is possible to switch to a non-heat exchange ventilation mode in which no heat exchange is performed. The ventilation system further includes control means for performing ventilation control. In ventilation control, control of switching between the heat exchange ventilation mode and the non-heat exchange ventilation mode in the first ventilation device is performed. In ventilation control, control of switching between the first state and the second state in the first switching means is performed.

  In this ventilation system, switching between the heat exchange ventilation mode and the non-heat exchange ventilation mode in the first ventilation device and switching between the first state and the second state in the first switching means can be controlled. For this reason, for example, ventilation control according to the room temperature and the outside air temperature in the first chamber can be performed.

  A ventilation system according to a sixth aspect of the present invention is the ventilation system according to the fifth aspect of the present invention, wherein the second ventilation device has a second heat exchange means. The second heat exchanging means exchanges heat between the outside air serving as supply air and the indoor air serving as exhaust. The second heat exchange means switches between a heat exchange ventilation mode in which heat is exchanged between outside air and room air, and a non-heat exchange ventilation mode in which heat exchange is not carried out between outside air and room air. Is possible. The control means further controls switching between the heat exchange ventilation mode and the non-heat exchange ventilation mode in the second ventilation device in the ventilation control.

  In this ventilation system, the control means further controls switching between the heat exchange ventilation mode and the non-heat exchange ventilation mode in the second ventilation device. For this reason, for example, ventilation according to the room temperature of the 1st room and the 2nd room, and the outside temperature can be performed for every living room.

  A ventilation system according to a seventh invention is the ventilation system according to the fifth invention or the sixth invention, wherein the first air conditioner is installed in the first chamber, and the second chamber is in the first. Two air conditioners are installed. The control means is based on the set room temperature and operation mode in the first air conditioner, the set room temperature and operation mode in the second air conditioner, the room temperature in the first room, the room temperature in the second room, and the outside temperature. Do ventilation control.

  In this ventilation system, the control means includes a set room temperature and operation mode in the first air conditioner, a set room temperature and operation mode in the second air conditioner, a room temperature in the first room, a room temperature in the second room, and Ventilation control is performed based on the outside air temperature. For this reason, for example, it is possible to perform ventilation according to the room temperature, the outside air temperature, and the operation mode of the air conditioner in each of the first chamber and the second chamber.

  A ventilation system according to an eighth aspect is the ventilation system according to the seventh aspect, wherein the operation mode in the first air conditioner is the heating operation mode and the operation mode in the second air conditioner is the cooling operation mode. The control means sets the first switching means to the second state. Furthermore, when the indoor temperature of the first chamber and the set indoor temperature of the first air conditioner have a predetermined first relationship, the control device sets the first ventilation device to the heat exchange ventilation mode.

  In this ventilation system, when the operation mode of the first air conditioner is the heating operation mode and the operation mode of the second air conditioner is the cooling operation mode, the control means sets the first switching means to the second state. . Furthermore, when the indoor temperature of the first chamber and the set indoor temperature of the first air conditioner have a predetermined first relationship, the control device sets the first ventilation device to the heat exchange ventilation mode. For this reason, for example, when the first chamber requires heating at a relatively low temperature and the second chamber has a relatively high temperature, the exhaust heat of the second chamber can be used effectively, and ventilation is provided for each living room. It can be performed.

  In the ventilation system according to the first aspect of the present invention, for example, when the first chamber requires heating at a relatively low temperature and the second chamber is relatively hot, a part of the exhaust heat in the second chamber is the first chamber. The exhaust heat of the second chamber can be effectively used, and at the same time, the first chamber is ventilated.

  In the ventilation system according to the second invention, ventilation can be performed for each room.

  In the ventilation system according to the third aspect of the present invention, for example, when the fourth chamber requires heating at a relatively low temperature and the third chamber is relatively hot, a part of the exhaust heat of the third chamber is the fourth chamber. The exhaust heat of the third chamber can be effectively used, and at the same time, the fourth chamber is ventilated.

  In the ventilation system according to the fourth aspect of the invention, ventilation can be performed for each living room.

  In the ventilation system according to the fifth aspect of the invention, for example, ventilation control can be performed according to the room temperature and the outside air temperature in the first chamber.

  In the ventilation system according to the sixth aspect of the invention, ventilation according to the room temperature of the first room and the second room and the outside air temperature can be performed for each living room.

  In the ventilation system according to the seventh aspect of the invention, it is possible to perform ventilation according to the room temperature, the outside air temperature, and the operation mode of the air conditioner in each of the first chamber and the second chamber.

  In the ventilation system according to the eighth aspect of the present invention, for example, when the first chamber requires heating at a relatively low temperature and the second chamber is relatively hot, the exhaust heat of the second chamber can be effectively used. It is possible to ventilate each room.

<Embodiment>
Here, operation | movement of the ventilation system which concerns on this embodiment is demonstrated using FIGS. 1-9.

[Configuration of ventilation system]
1 and 2 show a schematic configuration of a ventilation system according to an embodiment of the present invention (which will be described in detail later, FIG. 1 shows a second state described later, and FIG. 2 shows a ventilation system in a first state described later Shown). The ventilation system includes a first ventilation device 130, a first air conditioner 160, a second ventilation device 230, a second air conditioner 260, a supply / exhaust path, switching dampers 120 and 220 (first switching means), and a control device. 70. A first ventilator 130 and a first air conditioner 160 are installed in the first chamber 10. A second ventilation device 230 and a second air conditioner 260 are installed in the second chamber 20. The air supply / exhaust path is a general term for piping including the outdoor side exhaust pipes 151 and 251, the outdoor side air supply pipes 152 and 252, the indoor side exhaust pipes 153 and 253, the indoor side air supply pipes 154 and 254, and the switching dampers 120 and 220. It is.

  In the ventilation system according to the present embodiment, the first air conditioner 160 installed in the first chamber 10 operates in the heating operation mode, and the second air conditioner 260 installed in the second chamber 20 is in the cooling operation mode. May operate. This is because the second chamber 20 is assumed to be installed with devices that operate with a large amount of heat, such as a large computer such as a server computer. . In a room with such a situation, it is common to operate the air conditioner in the cooling operation mode even in the winter or intermediate period due to heat generation from the equipment. This embodiment also assumes such a situation. is doing.

  Hereinafter, in order to simplify the description, the first chamber 10 and the second chamber 20 may be simply expressed as the living rooms 10 and 20.

  In the present embodiment, the first ventilation device 130 and the second ventilation device 230 are installed behind the ceiling of the first chamber 10 and the second chamber 20, respectively. The first ventilation device 130 opens to the outside through the outdoor side exhaust pipe 151 and the outdoor side air supply pipe 152. On the other hand, the first ventilator 130 opens to the first chamber 10 via the indoor air supply pipe 154. The first ventilation device 130 is connected to the switching damper 120 via the indoor exhaust pipe 153. Further, the switching damper 120 is connected to the first chamber 10 and the second chamber 20 through a room-side exhaust pipe 153 by piping. For this reason, the first ventilation device 130 is connected to the first chamber 10 and the second chamber 20 via the indoor exhaust pipe 153 and the switching damper 120. Similarly, the second ventilation device 230 opens to the outside through the outdoor side exhaust pipe 251 and the outdoor side air supply pipe 252. On the other hand, the second ventilation device 230 opens to the second chamber 20 via the indoor air supply pipe 254. The second ventilation device 230 is connected to the switching damper 220 via the indoor exhaust pipe 253. Further, the switching damper 220 is connected by piping to the first chamber 10 and the second chamber 20 via the indoor exhaust pipe 253. For this reason, the second ventilation device 230 is connected to the first chamber 10 and the second chamber 20 via the indoor exhaust pipe 253 and the switching damper 220. Hereinafter, main components of the ventilation system according to the present embodiment will be described with reference to the drawings.

(1) Ventilator (first heat exchange means, second heat exchange means)
In the ventilation system according to the present embodiment, the two ventilation devices of the first ventilation device 130 and the second ventilation device 230 have the same structure and the like. For this reason, when mentioning a structure etc., it may express like the ventilator 130,230 for simplification.

  As shown in FIG. 3, in the ventilation system according to the present embodiment, the ventilation devices 130 and 230 have heat exchange elements 132 and 232, respectively, and have a heat exchange function. Exhaust fans 135 and 235 and supply fans 136 and 236 are provided in the ventilation devices 130 and 230, respectively, to generate an air flow. The ventilators 130 and 230 according to the present embodiment can switch between the heat exchange ventilation mode and the non-heat exchange ventilation mode. Dampers 155 and 255 are provided in the ventilation devices 130 and 230. The dampers 155 and 255 switch between an air flow path when operating in the heat exchange ventilation mode and an air flow path when operating in the non-heat exchange ventilation mode. Control units 139 and 239 are provided in the ventilation devices 130 and 230, respectively. The control units 139 and 239 are communicatively connected to the control device 70, and the ventilation devices 130 and 230 are controlled by the control device 70. Ventilators 130 and 230 are opened to the outside through outdoor exhaust pipes 151 and 251 and outdoor supply pipes 152 and 252, respectively. The first chamber 10 and the second chamber 20 are opened through the indoor exhaust pipes 153 and 253 and the indoor air supply pipes 154 and 254.

(2) Air conditioner In the ventilation system according to the present embodiment, the two air conditioners of the first air conditioner 160 and the second air conditioner 260 have the same structure. For this reason, when mentioning a structure etc., it may express like the air conditioners 160 and 260 for simplification.

  As shown in FIGS. 1 and 2, the air conditioners 160 and 260 mainly include indoor units 161 and 261, outdoor units 164 and 264, and refrigerant communication pipes 168 and 268 that connect these pipes. . The indoor units 161 and 261 are installed in the living rooms 10 and 20, for example, fixed to a wall. The outdoor units 164 and 264 are installed outside the room. The indoor units 161 and 261 and the outdoor units 164 and 264 are connected to each other by refrigerant communication pipes 168 and 268. The refrigerant communication pipes 168 and 268 are each divided into a liquid side refrigerant communication pipe through which liquefied refrigerant flows and a gas side refrigerant communication pipe through which vaporized refrigerant flows.

  In the indoor units 161 and 261, indoor control units 162 and 262, indoor temperature sensors 163 and 263, an indoor fan, an indoor heat exchanger, and the like are provided.

  In the outdoor units 164 and 264, outdoor control units 165 and 265, outdoor temperature sensors 166 and 266, an outdoor fan, an outdoor heat exchanger, a four-way switching valve, and the like are provided.

  The indoor control units 162 and 262 are communicatively connected to indoor temperature sensors 163 and 263, indoor fans, and the like. The indoor units 161 and 261 are communicatively connected to the control device 70 via the indoor control units 162 and 262. The control device 70 which will be described later performs the change of the rotation speed of the indoor fan, the operation mode, the set indoor temperature Ts, and the like through this communication connection. Also, various data in the indoor units 161 and 261 (for example, the operation mode of the air conditioners 160 and 260, the set indoor temperatures Ts1 and Ts2, etc.) are supplied to the control device 70 through this communication connection.

  The outdoor control units 165 and 265 are communicatively connected to the outside air temperature sensors 166 and 266, a four-way switching valve, and the like. The outdoor units 164 and 264 are communicatively connected to the control device 70 via the outdoor control units 165 and 265. The control device 70 which will be described later controls the outdoor units 164 and 264 including the switching of the four-way switching valve through this communication connection. Various data such as the outside air temperature is supplied to the control device 70 via this communication connection.

(3) Switching damper (first switching means)
4 and 5 show the structure of the switching dampers 120 and 220 according to the present embodiment (FIG. 4 shows the state of the switching dampers 120 and 220 in the second state described later, and FIG. 5 shows the first state described later. The state of the switching dampers 120 and 220 in FIG. The switching dampers 120 and 220 according to the present embodiment include two suction ports (first suction ports 121 and 221 and second suction ports 122 and 222), one outlet 123 and 223, and first suction ports 121 and 221. Damper members 124 and 224 for switching between the second suction ports 122 and 222, damper motors 125 and 225 for driving the damper members 124 and 224, and a control board (not shown) are provided. As shown in FIGS. 1 and 2, the ventilation system according to the present embodiment includes two switching dampers 120 and 220. The switching damper 120 is connected to the first ventilation device 130 by piping, and the switching damper 220 is connected to the second ventilation device 230 by piping. The first suction port 121 and the second suction port 122 of the switching damper 120 are connected to the first chamber 10 and the second chamber 20 through the indoor exhaust pipe 153. The air outlet 123 of the switching damper 120 is connected by piping to the indoor side intake port 145 of the first ventilation device 130 via the indoor side exhaust pipe 153. Similarly, the first suction port 221 and the second suction port 222 of the switching damper 220 are connected to the second chamber 20 and the first chamber 10 via the indoor exhaust pipe 253. The air outlet 223 of the switching damper 220 is connected by piping to the indoor side intake port 245 of the second ventilation device 230 via the indoor side exhaust pipe 253. The damper motors 125 and 225 are communicatively connected to the control board. The damper motors 125 and 225 are connected to the damper members 124 and 224 by a power transmission mechanism (not shown). Then, the driving force of the damper motors 125 and 225 is transmitted to the damper members 124 and 224. When one of the first suction ports 121, 221 and the second suction ports 122, 222, for example, the first suction ports 121, 221 is closed by the damper members 124, 224, the other second suction port 122 is closed. , 222 are opened. The reverse is also true. The control board is communicatively connected to the control device 70. The operations of the damper motors 125 and 225 and further the damper members 124 and 224 are controlled by the control device 70 via the control board. Depending on which of the first suction ports 121, 221 and the second suction ports 122, 222 is closed by the damper members 124, 224, the ventilation system according to the present embodiment has two air flow paths. A state in which the second suction ports 122 and 222 are closed and the first suction ports 121 and 221 are opened is referred to as a first state. The first suction ports 121 and 221 are closed and the second suction ports 122 and 222 are closed. The state where is opened is referred to as a second state. Switching operation between the first state and the second state is performed by the control device 70.

  2 and 5 are a system configuration diagram in the first state of the ventilation system according to the present embodiment and a side sectional view in the first state of the switching dampers 120 and 220 according to the present embodiment, respectively.

  1 and 4 are a system configuration diagram in the second state of the ventilation system according to the present embodiment, and a side sectional view in the second state of the switching dampers 120 and 220 according to the present embodiment, respectively.

(4) Control device (control means)
The control device 70 according to the present embodiment is installed outside the first chamber 10 and the second chamber 20. FIG. 6 is a configuration diagram of the control device 70. As shown in FIG. 6, the control device 70 mainly includes a central processing unit 71, a RAM 74, a ROM 75, and an I / O control unit 76. Here, the central processing unit 71, the RAM 74, the ROM 75, and the I / O control unit 76 are, for example, microcomputers, and are connected to each other to constitute one integrated circuit.

  The central processing unit 71 mainly includes a control unit 72 and a calculation unit 73. As shown in FIG. 7, the control unit 72 reads a control program stored in the ROM 75 and instructs the arithmetic unit 73, the RAM 74, and the I / O control unit 76 according to the read control program.

  As shown in FIG. 7, the calculation unit 73 acquires necessary data from the control unit 72, the RAM 74, and the ROM 75 in accordance with instructions from the control unit 72 and performs calculation processing (arithmetic calculation processing, logical calculation processing, etc.). . Further, the calculation unit 73 can supply processing result data of the calculation process to the control unit 72 in accordance with an instruction from the control unit 72. In addition, the calculation unit 73 can write the processing result data of the calculation process in the RAM 74 in accordance with an instruction from the control unit 72.

  As shown in FIG. 7, the RAM 74 can supply various data to the control unit 72 in accordance with instructions from the control unit 72. The RAM 74 acquires data from the I / O control unit 76 and temporarily stores it, or temporarily stores data transmitted from the calculation unit 73. In addition, the RAM 74 transmits the temporarily stored data to the I / O control unit 76 in accordance with a command from the control unit 72.

  The ROM 75 stores control programs and various data, and supplies them to the controller 72 as shown in FIG. The ROM 75 can supply various data to the arithmetic unit 73 in accordance with instructions from the control unit 72. Since the control program includes a timer program, the central processing unit 71 can execute the control program at regular time intervals (in this embodiment, the control program is executed at intervals of 2 minutes). ).

  The I / O control unit 76 inputs various data transmitted from the control units 139 and 239 of the indoor control units 162 and 262, the outdoor control units 165 and 265, and the ventilators 130 and 230 to the RAM 74, and stores them in the RAM 74. Various stored data and the like are output to the indoor units 161 and 261, the outdoor units 164 and 264, the switching dampers 120 and 220, or the ventilation devices 130 and 230. The I / O control unit 76 also includes temperature information transmitted from the control units 139 and 239, the indoor control units 162 and 262, the outdoor control units 165 and 265, and the switching dampers 120 and 220 of the ventilation devices 130 and 230. Various data (analog data) is received, and the data is converted into a format (digital data) that can be processed by the central processing unit 71.

  In addition, an input unit 77 for an operator to operate the control device 70 is connected to the control device 70 by communication. The input unit 77 is a dedicated input for the operator to perform operations such as setting the set indoor temperatures Ts1 and Ts2 of the air conditioners 160 and 260, switching the operation mode, and switching the ventilation mode of the ventilation devices 130 and 230. It is a device or a terminal. The input unit 77 displays the operating conditions of the air conditioners 160 and 260 and the ventilators 130 and 230. In the present embodiment, the input unit 77 is further communicatively connected to a control unit 72, a RAM 74, an I / O control unit 76, and the like in the control device 70.

[Operation of ventilation system]
Next, operation | movement of the ventilation system which concerns on this embodiment is demonstrated using FIGS. 1-9.

(1) Operation of Ventilator Ventilators 130 and 230 according to the present embodiment include heat exchange elements 132 and 232, and a heat exchange ventilation mode for performing heat exchange between outside air OA and room air IA; There are two ventilation modes, a non-heat exchange ventilation mode in which heat exchange is not performed between the outside air OA and the room air IA. The control units 139 and 239 receive a control signal from the control device 70, switch the ventilation mode of the ventilation devices 130 and 230, and control the air volume of the ventilation devices 130 and 230 based on the control signal. Or In addition, the control units 139 and 239 transmit the ventilation mode of the ventilation devices 130 and 230 and information on the air volume to the control device 70. Hereinafter, these two ventilation modes will be described with reference to FIG.

(1-1) Operation in Heat Exchange Ventilation Mode In the ventilation devices 130 and 230 according to the present embodiment, when heat exchange ventilation is performed, the openings 140 and 240 are opened by the dampers 155 and 255. Then, the openings 143 and 243 are closed. When the exhaust fans 135 and 235 and the air supply fans 136 and 236 are operated in this state, the indoor exhaust RA is passed from the indoor intake ports 145 and 245 through the indoor exhaust pipes 153 and 253, 230 is sucked into. The sucked indoor exhaust RA passes through the heat exchange elements 132 and 232, and is blown out from the outdoor air outlets 146 and 246 after exchanging heat with the outdoor air supply (outside air OA). And it is discharged | emitted by the outdoor side exhaust pipe 151,251 as outdoor side exhaust gas EA outside. On the other hand, outdoor air supply (outside air OA) is sucked into the ventilators 130 and 230 from the outdoor intake ports 148 and 248 via the outdoor air supply pipes 152 and 252. The sucked outdoor air supply (outside air OA) passes through the heat exchange elements 132 and 232 and is blown out from the indoor outlets 147 and 247 after exchanging heat with the outdoor exhaust EA. Then, the indoor air supply SA is supplied to the room via the indoor air supply pipes 154 and 254.

(1-2) Operation in Non-Heat Exchange Ventilation Mode In the ventilation devices 130 and 230 according to this embodiment, when non-heat exchange ventilation is performed, the dampers 155 and 255 open the openings 143 and 243. The openings 140 and 240 are closed. When the exhaust fans 135 and 235 and the supply fans 136 and 236 are operated in this state, the indoor exhaust RA is passed from the indoor intake ports 145 and 245 through the indoor exhaust pipes 153 and 253. , 230 is sucked into. In the non-heat exchange ventilation mode, the sucked indoor exhaust RA is blown out from the outdoor air outlets 146 and 246 without passing through the heat exchange elements 132 and 232. And it is discharged | emitted by the outdoor side exhaust pipe 151,251 as outdoor side exhaust gas EA outside. On the other hand, outdoor air supply (outside air OA) is sucked into the ventilators 130 and 230 from the outdoor intake ports 148 and 248 via the outdoor air supply pipes 152 and 252. The sucked outdoor air supply (outside air OA) passes through the heat exchange elements 132 and 232 and is blown out from the indoor outlets 147 and 247. Then, the indoor air supply SA is supplied into the room via the indoor air supply pipes 154 and 254 (the flow of the air supply is the same as in the heat exchange ventilation mode).

(2) Operation of the air conditioner When the air conditioners 160 and 260 are operated, the indoor fan rotates, and the refrigerant in the outdoor units 164 and 264 passes through the refrigerant communication pipes 168 and 268 and enters the indoor units 161 and 261. Flows in. When the refrigerant in the indoor units 161 and 261 passes through the indoor heat exchanger, it is evaporated or condensed by heat exchange with the indoor air IA, and cools or heats the indoor air IA. Note that switching between the cooling operation mode and the heating operation mode is realized by switching the direction in which the refrigerant flows by the four-way switching valve.

(3) Control of switching damper The switching dampers 120 and 220 are controlled by the control device 70. Here, control of the switching dampers 120 and 220 by the control device 70 will be described with reference to FIGS. 4 and 5. In the ventilation system according to the present embodiment, the switching dampers 120 and 220 are connected in communication with the control device 70 via the control board. Control boards for the switching dampers 120 and 220 are provided in the vicinity of the damper motors 125 and 225. A control signal for controlling the switching dampers 120 and 220 is transmitted from the control device 70 to the switching dampers 120 and 220, and the control boards of the switching dampers 120 and 220 receive the control signals. Then, the control boards of the switching dampers 120 and 220 drive and control the damper motors 125 and 225 based on the control signal from the control device 70. That is, the damper members 124 and 224 close one of the first suction ports 121 and 221 and the second suction ports 122 and 222 and open the other. As a result, switching control between the first state and the second state is performed. FIG. 4 shows the state of the switching dampers 120 and 220 in the second state. In the second state, the first suction ports 121 and 221 are closed, and the second suction ports 122 and 222 are opened. The air flow path in this state is as shown by an arrow. On the other hand, FIG. 5 shows the state of the switching dampers 120 and 220 in the first state. In the first state, the second suction ports 122 and 222 are closed, and the first suction ports 121 and 221 are opened. The air flow path in this state is as shown by an arrow. In this way, the damper members 124 and 224 close one of the first suction ports 121 and 221 and the second suction ports 122 and 222 and open the other, so that the switching dampers 120 and 220 can be opened. Switching control is executed.

(4) Operation | movement of control apparatus Here, the flow of ventilation control by the control apparatus 70 is demonstrated according to the flowchart shown by FIG.8 and FIG.9.

(4-1) Process Flow of Ventilation Control by Control Device FIG. 8 shows a flowchart of the process flow of ventilation control by the control device 70. In step ST <b> 1, the I / O control unit 76 follows the instruction of the control unit 72 from the indoor control unit 162 of the first air conditioner 160 to the set indoor temperature Ts <b> 1 of the first air conditioner 160, and the first air conditioner 160. The operation mode MoA1 and the room temperature Tr1 of the first chamber 10 are acquired and written in the RAM 74. Similarly, the I / O control unit 76 operates from the indoor control unit 262 of the second air conditioner 260 to the set indoor temperature Ts2 of the second air conditioner 260 and the operation of the second air conditioner 260 according to the instruction of the control unit 72. The mode MoA2 and the room temperature Tr2 of the second chamber 20 are acquired and written in the RAM 74. Further, the I / O control unit 76 acquires the outside air temperature To from the outdoor control units 165 and 265 of the air conditioners 160 and 260 in accordance with the instruction of the control unit 72 and writes it in the RAM 74.

  In step ST2, according to the instruction | indication of the control part 72, the calculating part 73 is the operation mode MoA1 of the 1st air conditioner 160 acquired by step ST1 in heating operation mode, and the operation mode MoA2 of the 2nd air conditioner 260 is cooling operation. It is determined whether the mode, the blow mode, or the stop. When the operation mode MoA1 of the first air conditioner 160 is in the heating operation mode and the operation mode MoA2 of the second air conditioner 260 satisfies the conditions of the cooling operation mode, the air blowing mode, or the stop, the process moves to step ST4. If not, the process moves to step ST3.

  In step ST <b> 3, the control unit 72 generates control information for switching the switching dampers 120 and 220 to the first state, and transmits the control information to the I / O control unit 76. The I / O control unit 76 transmits the control information of the switching dampers 120 and 220 received from the control unit 72 to the switching dampers 120 and 220 together with a control signal for operating the switching dampers 120 and 220. Thereafter, the process proceeds to P1 and later processing described later.

  In step ST <b> 4, the control unit 72 generates control information for switching the switching dampers 120 and 220 to the second state, and transmits the control information to the I / O control unit 76. The I / O control unit 76 transmits the control information of the switching dampers 120 and 220 received from the control unit 72 to the switching dampers 120 and 220 together with a control signal for operating the switching dampers 120 and 220. Further, the control unit 72 generates control information for setting the ventilation mode MoB2 of the second ventilation device 230 to the non-heat exchange ventilation mode, and transmits the control information to the I / O control unit 76. The I / O control unit 76 that has received the control information of the ventilation mode MoB2 of the second ventilation device 230 from the control unit 72 operates the second ventilation device 230 with the received control information of the ventilation mode MoB2 of the second ventilation device 230. It transmits to the 2nd ventilator 230 with the control signal to make. Further, the control unit 72 generates control information for increasing the air volume of the second ventilation device 230 and transmits the control information to the I / O control unit 76. The I / O control unit 76 that has received the control information for increasing the air volume of the second ventilation device 230 from the control unit 72 operates the control information for increasing the air volume of the second ventilation device 230 to operate the second ventilation device 230. It transmits to the 2nd ventilator 230 with the control signal to make. Then, it moves to step ST5.

  In step ST5, the room temperature Tr1 of the first chamber 10 acquired in step ST1 is compared with a temperature (referred to as MoTs1) that is higher by α ° C. than the set room temperature Ts1 of the first air conditioner 160. As a result of the comparison, when the room temperature Tr1 of the first chamber 10 is lower than MoTs1, that is, when the following relational expression 1 is satisfied, the process moves to step ST6. If the relational expression 1 is not satisfied, the process moves to step ST7.

  [Relational expression 1] Tr1 <MoTs1

  In step ST <b> 6, the control unit 72 generates control information for setting the ventilation mode MoB <b> 1 of the first ventilation device 130 to the heat exchange ventilation mode, and transmits the control information to the I / O control unit 76. The I / O control unit 76 that has received the control information of the ventilation mode MoB1 of the first ventilation device 130 from the control unit 72 operates the first ventilation device 130 using the received control information of the ventilation mode MoB1 of the first ventilation device 130. It transmits to the 1st ventilation apparatus 130 with the control signal to make. Thereafter, the process proceeds to step ST8.

  In step ST <b> 7, the control unit 72 generates control information for setting the ventilation mode MoB <b> 1 of the first ventilation device 130 to the non-heat exchange ventilation mode, and transmits the control information to the I / O control unit 76. The I / O control unit 76 that has received the control information of the ventilation mode MoB1 of the first ventilation device 130 from the control unit 72 operates the first ventilation device 130 using the received control information of the ventilation mode MoB1 of the first ventilation device 130. It transmits to the 1st ventilation apparatus 130 with the control signal to make. Thereafter, the process proceeds to step ST8.

  In step ST <b> 8, the control unit 72 generates control information for increasing the air volume of the first ventilation device 130, and transmits the control signal to the I / O control unit 76. The I / O control unit 76 that has received the control information for increasing the air volume of the first ventilation device 130 from the control unit 72 receives the control information for increasing the air volume of the first ventilation device 130 that has been received. Is transmitted to the first ventilator 130 together with a control signal for operating. Exit after sending.

(4-2) Flow of processing after P1 FIG. 9 shows a flowchart of processing after P1. In the processing after P1, the control device 70 performs ventilation control for each room of the first chamber 10 and the second chamber 20. In the first chamber 10, ventilation control is performed based on the set indoor temperature Ts1, the operation mode MoA1, and the outside air temperature To of the first air conditioner 160. In the second chamber 20, ventilation control is performed based on the set indoor temperature Ts2, the operation mode MoA2, and the outside air temperature To of the second air conditioner 260. Here, the first chamber 10 will be described. Since the same applies to the second chamber 20, the description of the second chamber 20 is omitted.

  In step ST101, the operation mode MoA1 of the first air conditioner 160 acquired in step ST1 is determined. When the operation mode MoA1 of the first air conditioner 160 is the heating operation mode, the air blowing mode, or the stop, the process moves to step ST102. When the operation mode MoA1 of the first air conditioner 160 is the cooling operation mode, the process moves to step ST103.

  In step ST102, it is determined whether or not the operation mode MoA1 of the air conditioner 160 is the heating operation mode. When the operation mode MoA1 of the air conditioner 160 is the heating operation mode, the process moves to step ST104. When the operation mode MoA1 of the air conditioner 160 is not the heating operation mode, the process moves to step ST105.

  In step ST103, it is determined whether or not the set indoor temperature Ts1 and the outside air temperature To of the first air conditioner 160 obtained in step ST1 satisfy the following relational expression 2.

[Relational expression 2] Ts1> To
If the relational expression 2 is satisfied, the process moves to step ST106. If the relational expression 2 is not satisfied, the process moves to step ST107.

  In step ST104, it is determined whether the set room temperature Ts1 and the outside air temperature To of the first air conditioner 160 obtained in step ST1 satisfy the following relational expression 3.

[Relational expression 3] To> Ts1
If the relational expression 3 is satisfied, the process moves to step ST106. If the relational expression 3 is not satisfied, the process moves to step ST107.

  In step ST105, it is determined whether the difference between the set indoor temperature Ts1 of the first air conditioner 160 and the indoor temperature Tr1 of the first chamber 10 obtained in step ST1 satisfies the following relational expression 4. Here, β ° C. is a predetermined value.

[Relational Expression 4] | Tr1−Ts1 | <β
If the relational expression 4 is satisfied, the process moves to step ST107. If the relational expression 4 is not satisfied, the process moves to step ST106.

  In step ST106, the control unit 72 generates control information for setting the ventilation mode MoB1 of the first ventilation device 130 to the non-heat exchange ventilation mode, and transmits the control information to the I / O control unit 76. Then, it moves to step ST108.

  In step ST107, the control unit 72 generates control information for setting the ventilation mode MoB1 of the first ventilation device 130 to the heat exchange ventilation mode, and transmits the control information to the I / O control unit 76. Then, it moves to step ST108.

  In step ST108, the I / O control unit 76 that has received the control information of the ventilation mode MoB1 of the first ventilation device 130 set in step ST106 and step ST107 from the control unit 72 controls the ventilation mode MoB1 of the first ventilation device 130. The information is transmitted to the first ventilator 130 together with a control signal for operating the first ventilator 130. Exit after sending.

[Features of ventilation system]
In the ventilation system according to the present embodiment, the first ventilation device 130 and the first air conditioner 160 are installed in the first chamber 10, and the second ventilation device 230 and the second air conditioner 260 are installed in the second chamber 20. ing. It is assumed that the second chamber 20 is installed with devices that operate with a large amount of heat, such as a server computer. Under such circumstances, it is common to cool the living room by operating the air conditioner in the cooling operation mode even in winter. Moreover, the 1st chamber 10 assumes the condition where heating is required at a relatively low temperature.

(1)
In the ventilation system according to the present embodiment, the operation mode MoA1 of the first air conditioner 160 is the heating operation mode, and the operation mode MoA2 of the second air conditioner 260 is the cooling operation mode, the air blowing mode, or the stop. At a certain time, the control device 70 controls the switching damper 120 to be in the second state. Further, the second ventilation device 230 is operated in the non-heat exchange ventilation mode. Furthermore, when the indoor temperature Tr1 of the first chamber 10 is compared with a temperature that is higher by α ° C. than the set indoor temperature Ts1 of the first air conditioner 160, and the condition that the former is lower than the latter, the control device 70 The first ventilator 130 is operated in the heat exchange ventilation mode. On the other hand, when the above condition is not satisfied, the control device 70 operates the first ventilation device 130 in the non-heat exchange ventilation mode.

  When the switching damper 120 is switched to the second state and the first ventilation device 130 is operated in the heat exchange ventilation mode, it is between the indoor side exhaust RA from the second chamber 20 and the outdoor air supply (outside air OA). Heat exchange takes place at. The outdoor air supply (outside air OA) is supplied to the first chamber 10 as the indoor air supply SA after heat exchange. For this reason, a part of the exhaust heat generated in the heat generating devices such as a server computer installed in the second chamber 20 is supplied to the first chamber 10 through heat exchange and is effectively used for heating the first chamber 10 and the like. Is done.

(2)
Further, in the ventilation system according to the present embodiment, when the switching damper 120 is switched to the second state and the first ventilation device 130 is operated in the heat exchange ventilation mode, the indoor exhaust RA from the second chamber 20 is the first. Rather than being supplied to one chamber 10, only exhaust heat is supplied to the outdoor air supply (outside air OA) through heat exchange. The outdoor air supply (outside air OA) supplied with a part of the exhaust heat of the second chamber 20 is supplied to the first chamber 10 as the indoor air supply SA. For this reason, ventilation of the 1st room 10 will also be performed with effective use of exhaust heat. That is, it is possible to achieve both effective use of exhaust heat and ventilation.

[Modification]
As mentioned above, although one Embodiment of this invention was described, this invention is not limited to this Embodiment, A various change is possible in the range which does not deviate from the summary of invention.

(A)
In the ventilation system according to the present embodiment, it is assumed that the control device 70 is installed outside the first chamber 10 and the second chamber 20, and the input unit 77 is provided independently of the control device 70. It was. In such a case, information input by the input unit is transmitted to the control device 70 by communication means.

  However, the input unit 77 may be mounted so as to be incorporated in the control device 70. For example, the control device 70 may be installed in a dedicated management room, or an operator may operate the input unit 77 integrated with the control device 70 in the management room.

(B)
In the ventilation system according to the present embodiment, when the operation mode MoA1 of the first air conditioner 160 is the heating operation mode, and the operation mode MoA2 of the second air conditioner 260 is the cooling operation mode, the air blowing mode, or the stop. In addition, the control device 70 controlled the first ventilation device 130, the second ventilation device 230, and the switching dampers 120 and 220. However, the condition of the ventilation control of the ventilation system according to the present invention is not limited to this. For example, the control device 70 may perform ventilation control according to the operation mode MoA1 of the first air conditioner 160 and the operation mode MoA2 of the second air conditioner 260.

(C)
The ventilators 130 and 230 according to the present embodiment have two ventilation modes: a heat exchange ventilation mode with heat exchange and a non-heat exchange ventilation mode without heat exchange. However, the 2nd ventilation device 230 installed in the 2nd room does not need to have such two ventilation modes. For example, the second ventilation device 230 may be a ventilation device that performs only ventilation between the room and the outside. Even in such a case, heat exchange is performed between the indoor exhaust RA from the second chamber 20 and the outdoor air supply (outside air OA) by the heat exchange function of the first ventilation device 130. It is possible to achieve both effective use of exhaust heat in the second chamber 20 and ventilation in the first chamber 10.

(D)
Although the ventilators 130 and 230 according to the present embodiment have a heat exchange function, in the present embodiment, the heat exchange function exchanges only sensible heat. However, the ventilators 130 and 230 may be a ventilator having a so-called total heat exchange function capable of exchanging not only sensible heat but also latent heat. Here, the sensible heat specifically means temperature, and the latent heat means specifically humidity.

(E)
In the ventilation system according to the present embodiment, the first chamber 10 includes the first ventilation device 130 and the first air conditioner 160, and the second chamber 20 includes the second ventilation device 230 and the second air conditioner 260, respectively. is set up. However, a plurality of ventilation devices, switching dampers, and air conditioners may be installed in each of the first chamber 10 and the second chamber 20. Moreover, the number of ventilation devices and the number of air conditioners do not need to match. In such a case, the control device 70 has a function of collectively managing and controlling the plurality of ventilation devices, the switching damper, and the air conditioner. By carrying out like this, the ventilation control similar to the ventilation system which concerns on this embodiment can be performed.

(F)
The control device 70 is a ventilation device based on the indoor temperatures Tr1 and Tr2 of the first chamber 10 and the second chamber 20, the set indoor temperatures Ts1 and Ts2 of the first air conditioner 160 and the second air conditioner 260, and the outside air temperature To. You may have a function which controls the air volume of 130,230.

(G)
In the ventilation system according to the present embodiment, the air conditioner 160 installed in the first chamber 10 and the air conditioner 260 installed in the second chamber 20 have the same structure. Machines 160 and 260 may be different types of air conditioners. For example, the air conditioner 160 may be a wall-mounted air conditioner, and the air conditioner 260 may be a ceiling-embedded air conditioner.

(H)
In the ventilation system according to the present embodiment, the air supply path passing through the first ventilation device 130 and the second ventilation device 230 is fixed, and the exhaust path passing through the first ventilation device 130 and the second ventilation device 230 is It was switched by switching dampers 120 and 220. That is, the indoor exhaust RA from the first chamber 10 flows through the first ventilator 130, the indoor exhaust RA from the second chamber 20 flows through the second ventilator 230, and the second state from the second chamber 20 The switching dampers 120 and 220 switch between the second state in which the indoor exhaust RA flows through the first ventilation device 130 and the indoor exhaust RA from the first chamber 10 flows through the second ventilation device 230.

  However, the present invention is not necessarily limited to this form, and conversely, the exhaust path may be fixed and the air supply path may be switched by a switching damper.

  In FIG.10 and FIG.11, the system block diagram of the ventilation system which concerns on the modification H of this embodiment is shown. In the modified example H, the exhaust path passing through the third ventilator 330 and the fourth ventilator 430 is fixed, and the air supply path passing through the third ventilator 330 and the fourth ventilator 430 is changed to the switching damper 320. , 420. That is, the fourth state in which the indoor air supply SA via the third ventilation device 330 is supplied to the third chamber 30 and the indoor air supply SA via the fourth ventilation device 430 is supplied to the fourth chamber 40. The third state where the indoor side air supply via the third ventilator 330 is supplied to the fourth chamber 40 and the indoor side air supply SA via the fourth ventilator 430 is supplied to the third chamber, Switching is performed by switching dampers 320 and 420.

  In the ventilation system according to the modification H, the ventilation control is different from the present embodiment in that the supply side or the exhaust side is switched in the ventilation control. However, in other points, the components, operations, and the like are included. This is the same as the ventilation system according to the present embodiment. For this reason, the effect similar to this embodiment is acquired also in an effect. Therefore, detailed description of each component of the ventilation system according to the modification H of the present embodiment is omitted here.

  The ventilation system according to Modification H of the present embodiment includes a third air conditioner 360, a fourth air conditioner 460, a third ventilation device 330, a fourth ventilation device 430, and switching dampers 320 and 420 as second switching means. The control device 70 is provided. The third ventilation device 330 and the third air conditioner 360 are installed in the third chamber 30, and the fourth ventilation device 430 and the fourth air conditioner 460 are installed in the fourth chamber 40. In the ventilation system according to Modification H of the present embodiment, the fourth air conditioner 460 installed in the fourth chamber 40 operates in the heating operation mode, and the third air conditioner 360 installed in the third chamber 30 May operate in cooling mode. This is because it is assumed that the third room 30 is installed with devices that operate with a large amount of heat, such as a large computer such as a server computer. . In a room with such a situation, it is common to operate the air conditioner in the cooling operation mode even in the winter or intermediate period due to heat generation from the equipment. This embodiment also assumes such a situation. is doing.

(H-1) Ventilator The third ventilator 330 and the fourth ventilator 430 have a heat exchange function, similar to the ventilators 130 and 230 according to the present embodiment. In addition, the third ventilation device 330 and the fourth ventilation device 430 can be switched between the heat exchange ventilation mode and the non-heat exchange ventilation mode. Switching control between the heat exchange ventilation mode and the non-heat exchange ventilation mode is performed by the control device 70 via the control units 339 and 439.

(H-2) Air conditioner The third air conditioner 360 and the fourth air conditioner 460 include indoor units 361 and 461, indoor control units 362 and 462, indoor temperature sensors 363 and 463, outdoor units 364 and 464, respectively. , Outdoor control units 365 and 465, outside air temperature sensors 366 and 466, and refrigerant communication pipes 368 and 468 are provided.

(H-3) Switching damper (second switching means)
The switching dampers 320 and 420 as the second switching means include first air outlets 321 and 421, second air outlets 322 and 422, suction ports 323 and 423, damper members 324 and 424, damper motors 325 and 425, and a control, respectively. A substrate is provided. The switching damper 320 is connected to the third ventilation device 330 by piping, and the switching damper 420 is connected to the fourth ventilation device 430 by piping. The first blower outlet 321 and the second blower outlet 322 of the switching damper 320 are connected to the third chamber 30 and the fourth chamber 40 via the indoor air supply pipe 354. A suction port 323 of the switching damper 320 is connected to the third ventilation device 330 through a room-side air supply pipe 354 by piping. Similarly, the first air outlet 421 and the second air outlet 422 of the switching damper 420 are connected to the fourth chamber 40 and the third chamber 30 via the indoor air supply pipe 454. A suction port 423 of the switching damper 420 is connected to the fourth ventilation device 430 through a room-side air supply pipe 454. The damper motors 325 and 425 are connected in communication with a control board (not shown). The damper motors 325 and 425 are connected to the damper members 324 and 424 by a power transmission mechanism (not shown). Then, the driving force of the damper motors 325 and 425 is transmitted to the damper members 324 and 424. When one of the first air outlets 321, 421 and the second air outlets 322, 422, for example, the first air outlets 321, 421 is closed by the damper members 324, 424, the other second air outlet 322 is closed. 422 is opened. The reverse is also true. The control board is communicatively connected to the control device 70. The operations of the damper motors 325 and 425 and the damper members 324 and 424 are controlled by the control device 70 via the control board. The ventilation system according to this embodiment has two air flow paths depending on which of the first air outlets 321, 421 and the second air outlets 322, 422 is closed by the damper members 324, 424. A state in which the second air outlets 322 and 422 are closed and the first air outlets 321 and 421 are opened is referred to as a fourth state, and the first air outlets 321 and 421 are closed and the second air outlets 322 and 422 are closed. The state where is opened is referred to as a third state. Switching operation between the third state and the fourth state is performed by the control device 70.

  11 and 12 are a system configuration diagram in the fourth state of the ventilation system according to the modification H of the present embodiment, and a side of the switching dampers 320 and 420 according to the modification H of the present embodiment in the fourth state, respectively. It is sectional drawing. In the fourth state, the third chamber 30 and the fourth chamber 40 are ventilated for each living room by the third ventilation device 330 and the fourth ventilation device 430, respectively.

  FIGS. 10 and 13 are a system configuration diagram in the third state of the ventilation system according to the modification H of the present embodiment, and a side in the third state of the switching dampers 320 and 420 according to the modification G of the present embodiment, respectively. It is sectional drawing. In the third state, in the third ventilation device 330, heat exchange is performed between the indoor side exhaust RA from the third chamber 30 and the outdoor side air supply (outside air OA), and the outdoor side air supply after heat exchange ( The outside air OA) is supplied to the fourth chamber 40 as the indoor air supply SA.

(H-4) Control device (control means)
The control device 70 according to the modified example H of the present embodiment is the same in structure and function as the control unit 70 according to the present embodiment.

[Features of Ventilation System According to Modification H of Embodiment]
In the ventilation system according to Modification H of the present embodiment, the third ventilation device 330 and the third air conditioner 360 are installed in the third chamber 30, and the fourth ventilation device 430 and the fourth air conditioner are installed in the fourth chamber 40. 460 is installed. In the third chamber 30, it is assumed that devices that operate with a large amount of heat, such as a server computer, are installed. In addition, the fourth chamber 40 is assumed to be heated at a relatively low temperature.

(1)
In the ventilation system according to Modification H of the present embodiment, the operation mode MoA4 of the fourth air conditioner 460 is the heating operation mode, and the operation mode MoA3 of the third air conditioner 360 is the cooling operation mode or the air blowing mode. Or, when it is stopped, the control device 70 controls the switching damper 420 to be in the third state. Further, the third ventilation device 330 is operated in the non-heat exchange ventilation mode. Furthermore, when the indoor temperature Tr4 of the fourth chamber 40 is compared with a temperature that is higher than the set indoor temperature Ts4 of the fourth air conditioner 460 by a constant temperature, and the condition that the former is lower than the latter, the control device 70 The fourth ventilator 430 is operated in the heat exchange ventilation mode. On the other hand, when the above condition is not satisfied, the control device 70 operates the fourth ventilation device 430 in the non-heat exchange ventilation mode.

  When the switching damper 320 is switched to the third state and the third ventilation device 330 is operated in the heat exchange ventilation mode, it is between the indoor side exhaust RA from the third chamber 30 and the outdoor air supply (outside air OA). Heat exchange takes place at. The outdoor air supply (outside air OA) is supplied to the fourth chamber 40 as the indoor air supply SA after heat exchange. For this reason, a part of the exhaust heat generated by the heat generating devices such as a server computer installed in the third chamber 30 is supplied to the fourth chamber 40 through heat exchange, and is effectively used for heating the fourth chamber 40 and the like. Is done.

(2)
Further, in the ventilation system according to Modification H of the present embodiment, when the switching damper 420 is switched to the third state and the fourth ventilation device 430 is operated in the heat exchange ventilation mode, the indoor side from the third chamber 30 is The exhaust RA is not supplied to the fourth chamber 40, but only exhaust heat is supplied to the outdoor air supply (outside air OA) through heat exchange. The outdoor air supply (outside air OA) supplied with a part of the exhaust heat of the third chamber 30 is supplied to the fourth chamber 40 as the indoor air supply SA. For this reason, ventilation of the 4th room 40 will also be performed with effective use of exhaust heat. That is, it is possible to achieve both effective use of exhaust heat and ventilation.

  The ventilation system according to the present invention can use, for example, a part of the exhaust heat in the living room in which the heat generating devices are installed, for example, for heating in another room. Moreover, it is possible to make use of exhaust heat and ventilation. Therefore, it is effective for ventilation of buildings and houses, and can contribute to energy saving.

The system block diagram in the 2nd state of the ventilation system which concerns on embodiment. The system block diagram in the 1st state of the ventilation system which concerns on embodiment. The side view of the ventilation apparatus which concerns on embodiment. The side sectional view in the 2nd state of the change damper concerning an embodiment. The side sectional view in the 1st state of the change damper concerning an embodiment. The block diagram of the control apparatus which concerns on embodiment. The data flow figure of the control apparatus which concerns on embodiment. The flowchart of the control apparatus which concerns on embodiment. The flowchart of the control apparatus which concerns on embodiment. The system block diagram in the 3rd state of the ventilation system which concerns on the modification H of embodiment. The system block diagram in the 4th state of the ventilation system which concerns on the modification H of embodiment. The sectional side view in the 4th state of the switching damper which concerns on the modification H of embodiment. The sectional side view in the 3rd state of the switch damper concerning modification H of an embodiment.

Explanation of symbols

10 first chamber 20 second chamber 30 third chamber 40 fourth chamber 70 Control device (control means)
120, 220, 320, 420 Switching damper (first switching means, second switching means)
130 1st ventilation device (1st heat exchange means)
160 1st air conditioner 230 2nd ventilator (2nd heat exchange means)
260 Second air conditioner 330 Third ventilator 430 Fourth ventilator To Outdoor temperature Tr1, Tr2 Indoor temperature Ts1, Ts2 Set indoor temperature OA Outdoor air supply EA Outdoor exhaust SA Indoor air supply RA Indoor exhaust

Claims (8)

A ventilation system for ventilating a first chamber (10) and a second chamber (20) different from the first chamber,
While taking outside air (OA) into the first chamber as intake air (SA), taking in indoor air (IA) from the first chamber or the second chamber and discharging it outside as exhaust (EA), and A first ventilator (130) having first heat exchanging means for exchanging heat between the outside air to be supplied and the indoor air to be exhaust;
First switching means for switching between a first state in which the room air in the first chamber flows to the first ventilator and a second state in which the room air in the second chamber flows to the first ventilator;
With ventilation system. A second ventilator (230) that takes outside air into the second chamber as supply air, and takes in indoor air from the second chamber or the first chamber and discharges it into the room as exhaust.
Further comprising
In the first state, the indoor air of the second chamber further flows to the second ventilation device,
In the second state, the indoor air of the first chamber further flows to the second ventilation device.
The ventilation system according to claim 1. A ventilation system for ventilating a third chamber (30) and a fourth chamber (40) different from the third chamber,
The outside air is taken in and supplied to the third chamber or the fourth chamber as well as the indoor air is taken in from the third chamber and discharged to the outside as exhaust, and the outside air that becomes the supply air and the exhaust that becomes the exhaust A third ventilator (330) having third heat exchange means for exchanging heat with room air;
A second switching means for switching between a third state in which the supply air from the third ventilation device flows into the third chamber and a fourth state in which the supply air from the third ventilation device flows into the fourth chamber;
With ventilation system. A fourth ventilator (430) that takes outside air into the fourth chamber or the third chamber as supply air, and takes in indoor air from the fourth chamber and discharges it outside as exhaust.
Further comprising
In the third state, the supply air from the fourth ventilator further flows into the fourth chamber,
In the fourth state, the supply air from the third ventilation device further flows into the fourth chamber.
The ventilation system according to claim 3. The first ventilation device includes a heat exchange ventilation mode in which heat exchange is performed between the outside air and the room air, and a non-heat exchange ventilation mode in which heat exchange is not performed between the outside air and the room air. Can be switched,
Control for performing ventilation control for controlling switching between the heat exchange ventilation mode and the non-heat exchange ventilation mode in the first ventilation device and switching between the first state and the second state in the first switching means. Means (70)
Further comprising
The ventilation system according to claim 2. The second ventilation device has second heat exchange means for performing heat exchange between the outside air serving as the supply air and the room air serving as the exhaust, and between the outside air and the room air. Switching between a heat exchange ventilation mode for performing heat exchange and a non-heat exchange ventilation mode for not performing heat exchange between the outside air and the room air is possible,
The control means further controls switching between the heat exchange ventilation mode and the non-heat exchange ventilation mode in the second ventilation device in the ventilation control.
The ventilation system according to claim 5. A first air conditioner (160) is installed for the first chamber, a second air conditioner (260) is installed for the second chamber,
The control means includes a set indoor temperature and an operation mode in the first air conditioner, a set indoor temperature and an operation mode in the second air conditioner, an indoor temperature in the first chamber, an indoor temperature in the second chamber, and Based on the outside temperature, the ventilation control is performed.
The ventilation system according to claim 5 or 6. The control means includes
When the operation mode in the first air conditioner is a heating operation mode and the operation mode in the second air conditioner is a cooling operation mode, the first switching unit is set to the second state,
Furthermore, when the indoor temperature of the first chamber and the set indoor temperature of the first air conditioner have a predetermined first relationship, the first ventilation device is set to the heat exchange ventilation mode.
The ventilation system according to claim 7.

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