JP2019211139A - Ventilation system, building and control device for ventilation system - Google Patents

Abstract

To acquire a ventilation system capable of suppressing a pollutant or moisture in the air which have generated in an arbitrary room out of a plurality of rooms communicating with each other dispersing to the other rooms, to acquire a building in which the ventilation system is arranged, and to acquire a control device for ventilation system.SOLUTION: A control device switches between: a first ventilation mode in which the air supplied from a first air supply port and a third air supply port is exhausted from a second air exhaust port; and a second ventilation mode in which the air supplied from the first air supply port is exhausted from a first air exhaust port and the air supplied from the third air supply port is exhausted from the second air exhaust port.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a ventilation system for ventilating a plurality of rooms, a building in which the ventilation system is arranged, and a control device for the ventilation system.

  As a means for maintaining the indoor air quality of a building, a ventilator that supplies outdoor air and exhausts indoor air is used. In recent years, since the outer skin of the building is highly airtight, if there are multiple rooms that are in close communication with each other, ventilate all the rooms by providing a central exhaust system in one place and an opening in each room. Can do.

The ventilation method includes a first type ventilation method, a second type ventilation method, and a third type ventilation method.
The first type ventilation system is a system in which air supply and exhaust are performed by a mechanical blower facility such as a fan. For example, in the first type ventilation system, a blower facility for supplying outdoor air into the room is provided at the opening of a part of the plurality of rooms, and the room at the opening of the other part of the room. A ventilation facility is provided to exhaust the air. Alternatively, a central ventilation device for supplying outside air through a duct or the like is provided in each room, and a blower facility for exhausting indoor air is provided in the opening of each room. In the first type ventilation system, outdoor air is supplied from some rooms by a blower, and indoor air is exhausted from other rooms by a blower.
The second type ventilation method is a method in which air supply is performed by a mechanical blower facility such as a fan. For example, in the second type ventilation system, a blower facility for supplying outdoor air into the room is provided at an opening of a part of the plurality of rooms. In the second type ventilation system, outdoor air is supplied from a part of the rooms by the blower equipment, so that the indoor air is exhausted from the openings of the other rooms in communication.
The third type ventilation method is a method in which exhaust is performed by a mechanical blowing facility such as a fan. In the third type ventilation system, a blower facility for exhausting indoor air is provided at an opening of a part of a plurality of rooms. In the third type ventilation system, the indoor air is exhausted from a part of the rooms by the blower equipment, so that the outdoor air is supplied from the openings of the other rooms in communication.

  For example, Patent Document 1 includes a ventilation unit installed in at least one living room, ventilation means for ventilation between each room and the common section, a plurality of rooms inside the building, and a common section that communicates each room. A ventilation system comprising an installed centralized ventilation unit is disclosed.

JP 2002-286269 A

  In the ventilation system described in Patent Document 1, air is supplied and exhausted from a plurality of rooms inside a building by a centralized ventilation unit. For this reason, there has been a problem that contaminants generated in an arbitrary room or moisture in the air diffuses into other rooms.

  The present invention has been made to solve the above-described problems, and among a plurality of rooms communicating with each other, contaminants generated in an arbitrary room or moisture in the air diffuses to other rooms. It is possible to obtain a ventilation system, a building in which the ventilation system is disposed, and a control device for the ventilation system.

  The ventilation system according to the present invention is formed with a first air supply port communicating with the outdoor, a first room in which a first exhaust port communicating with the outdoor is formed, and a second exhaust port communicating with the outdoor, A second room in communication with the first room, a third air inlet in communication with the outside, and a third room in communication with the first room and the second room; , A first air supply device installed in the first air supply port, a first exhaust device installed in the first exhaust port, and a second exhaust port. A second exhaust device, a first air supply device, a first exhaust device, and a control device that controls the operation of the second exhaust device, wherein the control device includes the first air supply device and The first exhaust device is stopped and the second exhaust device is driven to supply air from the first air supply port and the third air supply port. A first ventilation mode for exhausting the generated air from the second exhaust port, and driving the first air supply device, the first exhaust device, and the second exhaust device to supply air from the first air supply port. The second ventilation mode in which the air is exhausted from the first exhaust port and the air supplied from the third air supply port is exhausted from the second exhaust port is switched.

  The present invention provides a first ventilation mode for exhausting air supplied from the first air supply port and the third air supply port from the second exhaust port, and air supplied from the third air supply port to the second exhaust. Switch to the second ventilation mode to exhaust from the mouth. For this reason, it is possible to suppress the diffusion of contaminants generated in the first room or moisture in the air to other rooms.

It is a schematic block diagram of the ventilation system which concerns on Embodiment 1, and the building in which it was installed. It is a block diagram which shows the structure of the ventilation system which concerns on Embodiment 1. FIG. It is explanatory drawing which shows operation | movement of the 1st ventilation mode of the ventilation system which concerns on Embodiment 1. FIG. It is explanatory drawing which shows operation | movement of the pattern 1 of the 2nd ventilation mode in the ventilation system which concerns on Embodiment 1. FIG. It is explanatory drawing which shows operation | movement of the pattern 2 of the 2nd ventilation mode in the ventilation system which concerns on Embodiment 1. FIG. It is explanatory drawing which shows operation | movement of the pattern 3 of the 2nd ventilation mode in the ventilation system which concerns on Embodiment 1. FIG. 4 is a flowchart showing a switching operation of the ventilation system according to the first embodiment. It is a schematic block diagram of the ventilation system which concerns on Embodiment 2, and the building in which it was installed. It is a schematic block diagram of the ventilation system which concerns on Embodiment 3, and the building in which it was installed. It is a schematic block diagram of the whole building ventilation air conditioner of the ventilation system which concerns on Embodiment 3. FIG.

Embodiment 1 FIG.
[Constitution]
FIG. 1 is a schematic configuration diagram of a ventilation system according to Embodiment 1 and a building in which the ventilation system is installed. In addition, in FIG. 1, the cross section of a building is shown typically. Moreover, in FIG. 1, the arrow has shown the flow of air. In FIG. 1, the number of arrows indicates the amount of air flow. The same applies to the subsequent drawings.

  In FIG. 1, a building 1 is a house, for example, and has a plurality of rooms that are spaces to be ventilated. The building 1 is provided with a first room R1, a second room R2, a third room R3, a fourth room R4, a fifth room R5, and a corridor P. Each room is surrounded by an outer skin made of structures such as walls, ceilings, and floors. Each room of the building 1 is provided with a door D communicating with the hallway P.

  In the first room R1, a first air supply port 210 communicating with the outdoor space and a first exhaust port 211 communicating with the outdoor space are formed. The first room R1 is a space used as a living room such as a bedroom. In the second room R2, a second exhaust port 220 communicating with the outdoor space is formed. The second room R2 is, for example, a space used as a sanitary room that leads to a bathroom in which a bathtub B is provided. In the third room R3, a third air supply port 230 communicating with the outdoor space is formed. The third room R3 is a space in which a living dining room and a kitchen K are integrated, for example.

  In the fourth room R4, a fourth communication port 240 communicating with the outdoor space is formed. The fourth room R4 is a space used as a living room such as a bedroom or a child room. In the fifth room R5, a fifth exhaust port 250 communicating with the outdoor space is formed. The fifth room R5 is a space in which, for example, a toilet T is provided.

  The first room R1, the second room R2, the third room R3, the fourth room R4, and the fifth room R5 communicate with each other through the upper and lower and left and right gaps of the door D of each room. .

The ventilation system 2 installed in the building 1 includes a first air supply device 10, a first exhaust device 11, a total heat exchanger 12, and a second exhaust device 20.
The first air supply device 10 is installed in the first air supply port 210. The 1st air supply apparatus 10 is comprised by the air blower. The first air supply device 10 supplies outdoor air to the first room R1.
The first exhaust device 11 is installed in the first exhaust port 211. The 1st exhaust apparatus 11 is comprised by the air blower. The first exhaust device 11 sucks the air in the first room R1 from the first exhaust port 211 and exhausts it outside the room.
Total heat exchanger 12 performs total heat exchange between air supplied from first air supply port 210 by first air supply device 10 and air exhausted from first exhaust port 211 by first exhaust device 11. Do.
The second exhaust device 20 is installed in the second exhaust port 220. The second exhaust device 20 is configured by a blower. The second exhaust device 20 draws in the air in the second room R2 from the second exhaust port 220 and exhausts it outside the room.

  In addition, the local exhaust apparatus 50 comprised, for example by the air blower is provided in the 5th exhaust port 250 of 5th room R5. The local exhaust device 50 operates by operating a switch or the like provided on the wall surface.

  The ventilation system 2 includes a control device 100 (see FIG. 2), an air quality detection unit 110, and an operation unit 120.

FIG. 2 is a block diagram illustrating a configuration of the ventilation system according to the first embodiment.
As shown in FIG. 2, the control device 100 controls operations of the first air supply device 10, the first exhaust device 11, and the second exhaust device 20. Details of the operation will be described later.
The control device 100 is configured by dedicated hardware or a CPU that executes a program stored in a memory. CPU is an abbreviation for Central Processing Unit. The CPU is also referred to as a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, or a processor.

  When the control device 100 is dedicated hardware, the control device 100 corresponds to, for example, a single circuit, a composite circuit, an ASIC, an FPGA, or a combination thereof. Each functional unit realized by the control device 100 may be realized by individual hardware, or each functional unit may be realized by one piece of hardware. Note that ASIC is an abbreviation for Application Specific Integrated Circuit. FPGA is an abbreviation for Field-Programmable Gate Array.

  When the control device 100 is a CPU, each function executed by the control device 100 is realized by software, firmware, or a combination of software and firmware. Software and firmware are described as programs and stored in a memory. The CPU implements each function of the control device 100 by reading and executing a program stored in the memory. Here, the memory is a nonvolatile or volatile semiconductor memory such as a RAM, a ROM, a flash memory, an EPROM, or an EEPROM. Note that part of the functions of the control device 100 may be realized by dedicated hardware, and part of it may be realized by software or firmware. Note that RAM is an abbreviation for Random Access Memory. ROM is an abbreviation for Read Only Memory. EPROM is an abbreviation for Erasable Programmable Read Only Memory. EEPROM is an abbreviation for Electrically Erasable Programmable Read-Only Memory.

  The air quality detection means 110 measures the air quality of the first room R1, that is, the contamination concentration. The air quality measured by the air quality detection unit 110 includes, for example, the concentration of carbon dioxide, odor components, or volatile organic compounds (VOC) contained in the air. Moreover, as an air quality which the air quality detection means 110 measures, there exists the quantity of the water | moisture content, bacteria, or virus contained in air, for example. The air quality measured by the air quality detection means 110 includes, for example, the number of people in the room and the amount of human activity (movement of people per unit time).

  The operation unit 120 inputs an operation from the user to the control device 100. The operation unit 120 includes, for example, a mechanical switch such as a push switch and a tact switch, a touch switch that detects an input operation based on a change in capacitance of an electrode, and the like.

[Ventilation operation]
Next, the ventilation operation of the ventilation system 2 in the first embodiment will be described.
The control device 100 of the ventilation system 2 switches between the first ventilation mode and the second ventilation mode. The first ventilation mode is an operation mode in which air supplied from each room is exhausted from the second exhaust port 220 by the second exhaust device 20. That is, the first ventilation mode is an operation mode in which the third type ventilation is performed. The first ventilation mode is an operation mode in which concentrated exhaust is performed by one second exhaust device 20.
In the second ventilation mode, in the first room R1, the air supplied from the first air supply port 210 is exhausted from the first exhaust port 211, and the air supplied from other rooms is discharged to the second exhaust air. This is an operation mode in which air is exhausted from the second exhaust port 220 by the device 20. In other words, the second ventilation mode is an operation mode in which the first type ventilation is performed in the first room R1, and the third type ventilation is performed in the other rooms. In addition, the second ventilation mode is an operation mode in which individual exhaust is performed in the first room R1 and central exhaust is performed in the other rooms.
Hereinafter, the details of the operation of the ventilation system 2 in the first embodiment will be described separately for the first ventilation mode and the second ventilation mode.

<First ventilation mode>
FIG. 3 is an explanatory diagram illustrating an operation in the first ventilation mode of the ventilation system according to the first embodiment.
As shown in FIG. 3, in the first ventilation mode, the amount of air supplied from the first air supply port 210 into the room is defined as a first air supply amount Sa1. Further, the amount of air supplied into the room from the third air supply port 230 is defined as a third air supply amount Sb1. Further, the amount of air supplied from the fourth communication port 240 into the room is defined as a fourth air supply amount Sc1. Further, the amount of air exhausted from the second exhaust port 220 to the outside is defined as a second exhaust amount Ex1.

In the first ventilation mode, the control device 100 stops the first air supply device 10 and the first exhaust device 11 and drives the second exhaust device 20.
When the second exhaust device 20 is driven, the first exhaust port 210 of the first room R1, the third supply port 230 of the third room R3, and the fourth communication port 240 of the fourth room R4 are moved outside the room. Air is supplied. The air supplied to the first room R1, the third room R3, and the fourth room R4 flows into the second room R2 through the gap of the door D of each room. The air in each room flowing into the second room R2 is exhausted from the second exhaust port 220 to the outside by the second exhaust device 20.

  That is, when the space between the outer skins of each room is small and the flow of air through the outer skin is negligible, the relationship between the air volumes in the first ventilation mode is “Ex1 = Sa1 + Sb1 + Sc1”.

  As described above, in the first ventilation mode, each room of the building 1 can be ventilated by stopping the first air supply device 10 and the first exhaust device 11 and driving the second exhaust device 20. Therefore, compared with the case where the 1st air supply apparatus 10 and the 1st exhaust apparatus 11 are also driven, power consumption can be decreased and energy saving can be achieved.

  On the other hand, in the first ventilation mode, the air in each room passes through the other rooms and is exhausted from the second room R2. For example, the air in the first room R1 flows out into the hallway P through the door D, flows into the second room R2 from the hallway P, and is then exhausted from the second exhaust port 220 to the outside of the room. For this reason, pollutants such as odor, airborne bacteria, and dust generated in an arbitrary room are exhausted while being diffused to other rooms. In addition, moisture in the air in any room is exhausted while being diffused to other rooms, making it difficult to maintain the humidity in the room.

<Second ventilation mode>
Next, the operation in the second ventilation mode that suppresses the diffusion of the pollutant generated in the first room R1 or moisture in the air to other rooms will be described separately for Pattern 1 to Pattern 3.

(Pattern 1)
FIG. 4 is an explanatory diagram showing the operation of the pattern 1 in the second ventilation mode in the ventilation system according to the first embodiment.
As shown in FIG. 4, in the pattern 1 of the second ventilation mode, the amount of air supplied from the first air supply port 210 into the room is defined as a first air supply amount Sa21. Further, the amount of air exhausted from the first exhaust port 211 to the outside is defined as a first exhaust amount Ea21. Further, the amount of air supplied from the third air supply port 230 into the room is defined as a third air supply amount Sb21. Further, the amount of air supplied from the fourth communication port 240 into the room is defined as a fourth air supply amount Sc21. Further, the amount of air exhausted from the second exhaust port 220 to the outside is defined as a second exhaust amount Ex21.

  In pattern 1 of the second ventilation mode, the control device 100 drives the first air supply device 10, the first exhaust device 11, and the second exhaust device 20. Further, the control device 100 controls the operations of the first air supply device 10 and the first exhaust device 11 so that the first air supply amount Sa21 and the first exhaust amount Ea21 are the same.

  When the first air supply device 10 is driven, outdoor air is supplied from the first air supply port 210 of the first room R1. The air supplied to the first room R1 is exhausted from the first exhaust port 211 to the outside by the first exhaust device 11. Further, since the first air supply amount Sa22 and the first exhaust air amount Ea22 are the same, the air supplied into the first room R1 goes out of the room without flowing out to other rooms through the gaps of the door D. Exhausted. Further, the total heat exchanger 12 performs total heat exchange between the air exhausted from the first exhaust port 211 and the air supplied to the first air supply port 210.

  When the second exhaust device 20 is driven, outdoor air is supplied from the third air supply port 230 of the third room R3 and the fourth communication port 240 of the fourth room R4. The air supplied to the third room R3 and the fourth room R4 flows into the second room R2 through the gap of the door D of each room. The air in each room flowing into the second room R2 is exhausted from the second exhaust port 220 to the outside by the second exhaust device 20.

  That is, in the pattern 1 of the second ventilation mode, the relationship between the air volumes in the rooms is “Sa21 = Ea21” and “Ex21 = Sb21 + Sc21”.

  As described above, in the pattern 1 of the second ventilation mode, by driving the first air supply device 10 and the first exhaust device 11, the pollutant generated in the first room R1 or the moisture in the air is different from the other. It is possible to suppress diffusion into the room. Further, by driving the second exhaust device 20, it is possible to ventilate each room other than the first room R1.

  Further, since the first air supply amount Sa21 and the first exhaust amount Ea21 are the same, it is difficult for the air supplied into the first room R1 to flow out to other rooms through the gap of the door D. it can.

  Further, since the total heat exchanger 12 performs total heat exchange between the air exhausted from the first room R1 and the air supplied to the first room R1, the temperature and humidity in the first room R1. Can be suppressed. Further, since the first air supply amount Sa21 and the first exhaust amount Ea21 are the same, the total heat exchange in the total heat exchanger 12 can be performed efficiently, and energy saving can be achieved.

In the second ventilation mode pattern 1, the control device 100 controls the operation of the second exhaust device 20 so that the second exhaust amount Ex21 is smaller than the second exhaust amount Ex1 in the first ventilation mode. Also good.
Compared to the first ventilation mode, since the supply and exhaust of the first room R1 are not performed by the second exhaust device 20, the relationship of “second exhaust amount Ex21 <second exhaust amount Ex1” is also satisfied. Ventilation of each room other than the room R1 can be sufficiently performed. Therefore, compared to the first ventilation mode, the exhaust amount exhausted to the outside by the concentrated exhaust by the second exhaust device 20 can be reduced. Therefore, for example, even when each room is air-conditioned by an air conditioner or the like, the amount of air discharged from the conditioned air to the outside decreases, and energy saving can be achieved.

(Pattern 2)
The pattern 2 in the second ventilation mode is an operation for improving the air quality in the first room R1 faster than the pattern 1.

FIG. 5 is an explanatory diagram showing an operation of the pattern 2 in the second ventilation mode in the ventilation system according to the first embodiment.
As shown in FIG. 5, in the second ventilation mode pattern 2, the amount of air supplied from the first air supply port 210 to the room is defined as a first air supply amount Sa22. Further, the amount of air exhausted from the first exhaust port 211 to the outside is defined as a first exhaust amount Ea22. Further, the amount of air supplied from the third air supply port 230 into the room is defined as a third air supply amount Sb22. Further, the amount of air supplied from the fourth communication port 240 into the room is defined as a fourth air supply amount Sc22. Further, the amount of air exhausted from the second exhaust port 220 to the outside is defined as a second exhaust amount Ex22.

  In pattern 2 of the second ventilation mode, the control device 100 drives the first air supply device 10, the first exhaust device 11, and the second exhaust device 20. Further, the control device 100 controls the operations of the first air supply device 10 and the first exhaust device 11 so that the first air supply amount Sa22 and the first exhaust amount Ea22 are the same. Further, the control device 100 increases the first air supply amount Sa22 to be greater than the first air supply amount Sa1 in the first ventilation mode.

  When the first air supply device 10 is driven, outdoor air is supplied from the first air supply port 210 of the first room R1. The air supplied to the first room R1 is exhausted from the first exhaust port 211 to the outside by the first exhaust device 11. Further, since the first air supply amount Sa22 and the first exhaust air amount Ea22 are the same, the air supplied into the first room R1 goes out of the room without flowing out to other rooms through the gaps of the door D. Exhausted. Further, the total heat exchanger 12 performs total heat exchange between the air exhausted from the first exhaust port 211 and the air supplied to the first air supply port 210. Furthermore, since the first air supply amount Sa22 is larger than the first air supply amount Sa1 in the first ventilation mode, the ventilation amount in the first room R1 is larger than that in the pattern 1.

  When the second exhaust device 20 is driven, outdoor air is supplied from the third air supply port 230 of the third room R3 and the fourth communication port 240 of the fourth room R4. The air supplied to the third room R3 and the fourth room R4 flows into the second room R2 through the gap of the door D of each room. The air in each room flowing into the second room R2 is exhausted from the second exhaust port 220 to the outside by the second exhaust device 20.

  That is, in the second ventilation mode pattern 2, the relationship between the air volumes in the rooms is “Sa22 = Ea22”, “Sa1 <Sa22”, and “Ex22 = Sb22 + Sc22”.

  As described above, in the pattern 2 of the second ventilation mode, by driving the first air supply device 10 and the first exhaust device 11, the pollutant generated in the first room R1 or the moisture in the air is different from the other. It is possible to suppress diffusion into the room. Further, by driving the second exhaust device 20, it is possible to ventilate each room other than the first room R1. Furthermore, compared with the pattern 1, the air quality in the first room R1 can be improved more quickly.

  Also in the second ventilation mode pattern 2, the control device 100 controls the operation of the second exhaust device 20 so that the second exhaust amount Ex21 is smaller than the second exhaust amount Ex1 in the first ventilation mode. May be.

(Pattern 3)
Compared with patterns 1 and 2, pattern 3 in the second ventilation mode performs an operation of further suppressing diffusion of pollutants generated in the first room R1 or moisture in the air into other rooms.

FIG. 6 is an explanatory diagram showing an operation of the pattern 3 in the second ventilation mode in the ventilation system according to the first embodiment.
As shown in FIG. 6, in the pattern 3 of the second ventilation mode, the amount of air supplied from the first air supply port 210 to the room is defined as a first air supply amount Sa23. Further, the amount of air exhausted from the first exhaust port 211 to the outside is defined as a first exhaust amount Ea23. Further, the amount of air supplied into the room from the third air supply port 230 is defined as a third air supply amount Sb23. Further, the amount of air supplied into the room from the fourth communication port 240 is defined as a fourth air supply amount Sc23. Further, the amount of air exhausted from the second exhaust port 220 to the outside is defined as a second exhaust amount Ex23. Further, an air volume supplied from the door D of the first room R1 into the first room R1 is defined as an indoor air supply amount Sa_re.

  In the pattern 3 of the second ventilation mode, the control device 100 drives the first air supply device 10, the first exhaust device 11, and the second exhaust device 20. Further, the control device 100 controls the operations of the first air supply device 10 and the first exhaust device 11 so that the first air supply amount Sa23 is smaller than the first exhaust amount Ea23.

  When the first air supply device 10 is driven, outdoor air is supplied from the first air supply port 210 of the first room R1. Further, since the first air supply amount Sa23 is smaller than the first exhaust amount Ea23, the first chamber R1 has a negative pressure, and air from other rooms is supplied from the hallway P through the gap of the door D. The air supplied to the first room R1 is exhausted from the first exhaust port 211 to the outside by the first exhaust device 11. Further, the total heat exchanger 12 performs total heat exchange between the air exhausted from the first exhaust port 211 and the air supplied to the first air supply port 210.

  When the second exhaust device 20 is driven, outdoor air is supplied from the third air supply port 230 of the third room R3 and the fourth communication port 240 of the fourth room R4. Part of the air supplied to the third room R3 and the fourth room R4 flows into the first room R1, and the other part flows into the second room R2. The air in each room flowing into the second room R2 is exhausted from the second exhaust port 220 to the outside by the second exhaust device 20.

  That is, in the pattern 3 of the second ventilation mode, the relationship between the air volumes in the rooms is “Sa23 + Sa_re = Ea23” and “Ex23 + Ea23 = Sa23 + Sb23 + Sc23”.

  As described above, in the pattern 3 of the second ventilation mode, the first air supply device 10 and the first exhaust device 11 are driven so that the first air supply amount Sa23 is smaller than the first exhaust amount Ea23. It is possible to prevent the contaminants generated in the first room R1 or the moisture in the air from being diffused to other rooms. Further, by driving the second exhaust device 20, it is possible to ventilate each room other than the first room R1.

  Also in the pattern 3 of the second ventilation mode, the control device 100 may cause the control device 100 to make the first air supply amount Sa23 larger than the first air supply amount Sa1 in the first ventilation mode. Thereby, compared with the pattern 1, the ventilation amount in 1st room R1 becomes large, and the air quality in 1st room R1 can be improved more rapidly.

  The pattern 3 in the second ventilation mode is particularly effective when the first room R1 is used as a bedroom and is in a low humidity period in winter. That is, when the first room R1 becomes low humidity due to heating in winter, adverse effects on the throat and skin of the user during sleep increase. For this reason, it is required that moisture generated in the first room R1 is not released, the intake amount of outside air is reduced, and the air volume of heating and ventilation is reduced in order to reduce noise. In pattern 3 of the second ventilation mode, the amount of outside air taken in is reduced while maintaining high air cleaning performance, and air through the corridor P is introduced into the first room R1. The air flowing into the first room R1 through the corridor P is originally outside air, but by passing through the other rooms, the first enthalpy state is obtained in a high enthalpy state using heat storage and moisture storage in the passed room. Into room R1. Therefore, the load of air conditioning and humidification of the first room R1 can be reduced, and a more comfortable sleep environment can be formed by the user. Even in the above-described pattern 1 of the second ventilation mode, when the first room R1 is used as a bedroom, the humidity derived from the exhaled air generated in the first room R1 is first changed by the total heat exchanger 12. Needless to say, this is effective as a ventilation system during sleep.

  In the pattern 3 of the second ventilation mode, the control device 100 may control the operation of the second exhaust device 20 so that the second exhaust amount Ex23 is smaller than the first exhaust amount Ea23. In the pattern 3 of the second ventilation mode, a part of the air supplied to the third room R3 and the fourth room R4 flows into the first room R1, and the other part is the second air. It flows into room R2. For this reason, even in the relationship of “second exhaust amount Ex23 <first exhaust amount Ea23”, ventilation of each room other than the first room R1 can be sufficiently performed. Therefore, the exhaust amount exhausted to the outside by the concentrated exhaust by the second exhaust device 20 can be reduced. Therefore, for example, even when each room is air-conditioned by an air conditioner or the like, the amount of air discharged from the air-conditioned air is reduced, and energy saving can be achieved.

  Note that also in the pattern 3 of the second ventilation mode, the control device 100 controls the operation of the second exhaust device 20 so that the second exhaust amount Ex21 is smaller than the second exhaust amount Ex1 in the first ventilation mode. May be.

[Switching action]
Next, the switching operation of patterns 1 to 3 in the first ventilation mode and the second ventilation mode described above will be described.

  FIG. 7 is a flowchart showing a switching operation of the ventilation system according to the first embodiment. Hereinafter, the switching operation of the ventilation system 2 will be described based on the steps of FIG.

  The control device 100 acquires the air quality detection value measured by the air quality detection means 110 (step S1). The control device 100 determines whether or not the air quality detection value is below a first threshold value which is an example of a predetermined value (step S2). In a state where the air quality detection value is lower than the first threshold value, control device 100 executes the first ventilation mode (step S3).

  When the air quality detection value is equal to or higher than the first threshold value, the control device 100 determines whether or not the air quality detection value is lower than the second threshold value (step S4). Here, the second threshold value is larger than the first threshold value. In a state where the air quality detection value is lower than the second threshold value, control device 100 executes pattern 1 of the second ventilation mode (step S5).

  When the detected value of the air quality is equal to or higher than the second threshold value, the control device 100 determines whether or not a predetermined operation condition is satisfied (step S6).

Here, the predetermined operating condition is based on, for example, whether or not the outside air is below a predetermined temperature and humidity. In this case, a temperature / humidity sensor that detects the temperature and humidity of the outside air is provided, and the control device 100 determines the operating condition based on the detection value of the temperature / humidity sensor. Further, for example, the predetermined operating condition is based on whether or not the current date is included in a preset winter date. That is, in step S6, the control device 100 determines whether or not the outside air is in an operating state where the temperature is low and low.
Further, for example, the predetermined operating condition is based on whether or not the current time is included in a preset night time. That is, for example, when the first room R1 is used as a bedroom, the control device 100 determines whether it is time for the user to sleep.

  When the predetermined operation state is not satisfied, the control device 100 executes the second ventilation mode pattern 2 (step S7). On the other hand, when satisfy | filling a predetermined driving | running state, the pattern 3 of 2nd ventilation mode is performed (step S8).

That is, the control device 100 executes the first ventilation mode when the air quality is lower than the first threshold, and executes the second ventilation mode when the air quality is equal to or higher than the first threshold.
When the air quality value is below the second threshold value, pattern 1 of the second ventilation mode is executed, and when the air quality value is equal to or higher than the second threshold value, pattern 2 or pattern 3 in which the ventilation volume is larger than pattern 1 is executed. To do. That is, as the air quality value increases, the first exhaust amount, which is the amount of air exhausted from the first exhaust port 211 by the first exhaust device 11, is increased.

  In the above description, the case where the switching operation is performed based on the air quality detection value measured by the air quality detection unit 110 has been described, but the present invention is not limited to this. For example, the control device 100 may switch the patterns 1 to 3 of the first ventilation mode and the second ventilation mode in response to an input from the operation unit 120. That is, the control device 100 may vary the first exhaust amount, which is the amount of air exhausted from the first exhaust port 211 by the first exhaust device 11, in accordance with the input from the operation unit 120.

As described above, in the first embodiment, the control device 100 individually exhausts the first ventilation mode in which the air supplied from each room is centrally exhausted from the second exhaust port 220 and the first room R1. The second ventilation mode in which the air supplied from other rooms is exhausted in a concentrated manner from the second exhaust port 220 is switched.
Therefore, in the first ventilation mode, energy can be saved by performing concentrated exhaust with reduced power consumption. In the second ventilation mode, contaminants generated in the first room R1 or in the air can be saved. Diffusion of moisture into other rooms can be suppressed.

  In the first embodiment, the configuration of the third type ventilation method in which the air supply device is not provided in the third air supply port 230 of the third room R3 and the fourth communication port 240 of the fourth room R4 will be described. However, the present invention is not limited to this. An air supply device may be provided in the third air supply port 230 of the third room R3 and the fourth communication port 240 of the fourth room R4, and air supply may be performed by the power of the blower. That is, you may apply the structure of a 1st type ventilation system. Here, even when the first air supply device 10 and the first exhaust device 11 are operated in the second ventilation mode, the air supply amount to the third room R3 and the fourth room R4 is the second amount. If the exhaust amount of the exhaust device 20 is small, there is a concern that the air in the first room R1 leaks to another room. For this reason, the first type ventilation method is adopted, and the third room R3 and the fourth room R4 are supplied with air by the air supply device, so that the door D from the third room R3 and the fourth room R4. An air path through which air pushed out through the air flows into the second room R2 is formed, and diffusion of contaminants and moisture from the first room R1 can be suppressed.

Embodiment 2. FIG.
Hereinafter, the configuration and operation of the ventilation system in the second embodiment will be described focusing on the differences from the first embodiment. In addition, the same code | symbol is attached | subjected to the same structure as the said Embodiment 1, and description is abbreviate | omitted.

FIG. 8 is a schematic configuration diagram of a ventilation system according to the second embodiment and a building in which the ventilation system is installed.
As shown in FIG. 8, the ventilation system 2 includes a third air supply device 30 installed in the third air supply port 230 in addition to the configuration of the first embodiment. The 3rd air supply apparatus 30 is comprised by the air blower. The third air supply device 30 supplies outdoor air to the third room R3.
The ventilation system 2 includes an air conditioner AC installed in the third room R3. The air conditioner AC sucks in the air in the third room R3, air-conditions it, and blows it out to the third room R3. The control device 100 controls the operations of the third air supply device 30 and the air conditioner AC.

  The control device 100 executes the third ventilation mode. In the third ventilation mode, the air supplied from the first air supply port 210 is exhausted from the first exhaust port 211, and the air supplied from the third air supply port 230 is exhausted from the first exhaust port 211 and the second exhaust port 211. This is an operation mode for exhausting air from the exhaust port 220. That is, the third ventilation mode is an operation mode in which the first type ventilation is performed in the first room R1, and the second type ventilation is performed in the other rooms. In addition, the third ventilation mode is an operation mode in which individual exhaust is performed in the first room R1 and central exhaust is performed in the other rooms. Hereinafter, the details of the ventilation operation in the third ventilation mode will be described.

<Third ventilation mode>
As shown in FIG. 8, in the third ventilation mode, the amount of air supplied from the first air supply port 210 into the room is defined as a first air supply amount Sa3. Further, the amount of air exhausted from the first exhaust port 211 to the outside is defined as a first exhaust amount Ea3. Further, the amount of air supplied from the third air supply port 230 into the room is defined as a third air supply amount Sb3. Further, the amount of air exhausted from the fourth communication port 240 to the outside is defined as a fourth exhaust amount Ec3. Further, the amount of air exhausted from the second exhaust port 220 to the outside is defined as a second exhaust amount Ex3.

  In the third ventilation mode, the control device 100 drives the first air supply device 10, the first exhaust device 11, the second exhaust device 20, and the third air supply device 30. Further, the control device 100 controls the operations of the first air supply device 10 and the first exhaust device 11 so that the first air supply amount Sa3 is smaller than the first exhaust amount Ea3.

  When the third air supply device 30 is driven, outdoor air is supplied from the third air supply port 230 of the third room R3. The air supplied to the third room R3 is mixed with the indoor air that is air-conditioned by the air conditioner AC, and then flows out to the hallway P and other rooms through the gap of the door D.

  When the first air supply device 10 is driven, outdoor air is supplied from the first air supply port 210 of the first room R1. Further, since the first air supply amount Sa3 is smaller than the first exhaust amount Ea3, the first chamber R1 has a negative pressure, and air from the third chamber R3 is supplied from the hallway P through the gap of the door D. . The air supplied to the first room R1 is exhausted from the first exhaust port 211 to the outside by the first exhaust device 11. Further, the total heat exchanger 12 performs total heat exchange between the air exhausted from the first exhaust port 211 and the air supplied to the first air supply port 210.

When the second exhaust device 20 is driven, a part of the air from the third room R3 flows into the second room R2. The air flowing into the second room R2 is exhausted from the second exhaust port 220 to the outside by the second exhaust device 20.
The other part of the air from the third room R3 flows into the fourth room R4 through the gap between the hallway P and the door D, and is discharged from the fourth communication port 240 to the outside.

  That is, in the third ventilation mode, the relationship between the air volumes in the rooms is “Sa3 + Sb3 = Ea3 + Ex3 + Ec3” and “Sa3 <Ea3”.

  As described above, in the third ventilation mode, the first air supply device 10 and the first exhaust device 11 are driven so that the first air supply amount Sa3 is smaller than the first exhaust amount Ea3. It is possible to prevent the pollutant generated in the room R1 or the moisture in the air from being diffused to other rooms.

  In addition, an air conditioner AC is provided in the third room R3, and the air supplied by the third air supply device 30 is mixed with air that has been conditioned, and then discharged to each room. For this reason, each room in the building 1 can be air-conditioned by the air conditioner AC. That is, when the skin performance of each room of the building 1 is sufficiently high and the indoor heat load is uniform, uniform ventilation air conditioning with little temperature difference between the rooms is possible.

  Further, since the total heat exchanger 12 performs total heat exchange between the air exhausted from the first room R1 and the air supplied to the first room R1, the temperature and humidity in the first room R1. Can be suppressed.

Note that the control device 100 may increase the air conditioning capability of the air conditioner AC as the first displacement Ea3 is larger. Thereby, even when a large amount of air conditioned by the air conditioner AC is discharged, changes in the temperature and humidity of each room can be suppressed.
In the configuration of the first embodiment as well, the air conditioner AC is provided in the third room R3, and the control device 100 increases the air conditioning capability of the air conditioner AC as the first exhaust amount Ea3 increases. Also good.

Embodiment 3 FIG.
Hereinafter, the configuration and operation of the ventilation system in the third embodiment will be described focusing on differences from the first and second embodiments. In addition, the same code | symbol is attached | subjected to the same structure as the said Embodiment 1 and 2, and description is abbreviate | omitted.

FIG. 9 is a schematic configuration diagram of a ventilation system according to the third embodiment and a building in which the ventilation system is installed.
FIG. 10 is a schematic configuration diagram of the entire building ventilation air conditioner of the ventilation system according to the third embodiment.
As shown in FIGS. 9 and 10, the ventilation system 2 includes a whole building ventilation air conditioner 300 in addition to the configuration of the first embodiment. The entire building ventilation air conditioner 300 includes a second total heat exchanger 310 and a second air conditioner 320.

The second total heat exchanger 310 performs total heat exchange between a part of the return air RA exhausted from the second exhaust port 220 and the outside air OA supplied from the outside. The return air RA after the total heat exchange is exhausted to the outside as exhaust EA.
The second air conditioner 320 air-conditions the air obtained by mixing the other part of the return air RA exhausted from the second exhaust port 220 and the outside air OA that has passed through the second total heat exchanger 310. The second air conditioner 320 supplies air conditioned air to each room of the building 1 as supply air SA. The second air conditioner 320 is configured by a heat exchanger that exchanges heat between the refrigerant supplied from the outdoor unit 330 and the air.

  As shown in FIG. 10, a blower 311 that sucks in the outside air OA and a blower 312 that discharges the exhaust EA may be provided attached to the second total heat exchanger 310. Moreover, you may provide the air blower 321 which attaches to the 2nd air conditioner 320 and sends out supply air SA to each room.

  Each room of the building 1 and the entire building ventilation air conditioner 300 are connected by a duct or an air passage under the floor. Specifically, the entire building ventilation air conditioner 300 includes a second air inlet 212 formed in the first room R1, a second air outlet 220 formed in the second room R2, and a third room R3. Are connected to a third air supply port 230 formed in the fourth room R4 and a fourth communication port 240 formed in the fourth room R4.

[Ventilation operation]
Next, the ventilation operation of the ventilation system 2 in the third embodiment will be described.
The ventilation system 2 according to the third embodiment performs ventilation and air conditioning of each room by the entire building ventilation air conditioner 300 in addition to the ventilation operation of the first or second embodiment.

  As shown in FIG. 9, the amount of air supplied from the first air supply opening 210 into the room is defined as a first air supply amount Sa41. The amount of air supplied into the room from the second air supply port 212 is defined as a second air supply amount Sa42. Further, the amount of air supplied from the third air supply port 230 into the room is defined as a third air supply amount Sb4. Further, the amount of air supplied from the fourth communication port 240 into the room is defined as a fourth air supply amount Sc4. Further, the amount of air exhausted from the second exhaust port 220 to the outside is defined as a second exhaust amount Ex4.

  The control device 100 drives the first air supply device 10, the first exhaust device 11, and the second exhaust device 20. Further, the control device 100 operates the first air supply device 10 and the first air exhaust device 11 so that the sum of the first air supply amount Sa41 and the second air supply amount Sa42 is equal to or less than the first exhaust amount Ea4. To control. Moreover, the control apparatus 100 drives the 2nd air conditioner 320 of the whole building ventilation air conditioner 300, the air blower 311, the air blower 312 and the air blower 321.

  The return air RA exhausted from the second exhaust port 220 by the second exhaust device 20 flows into the entire building ventilation air conditioner 300 connected by a duct or the like. A part of the return air RA flowing into the entire building ventilation air conditioner 300 is subjected to total heat exchange with the outside air OA supplied from the outside by the second total heat exchanger 310, and is then discharged to the outside as exhaust EA. Exhausted. The outside air OA that has flowed into the entire building ventilation air conditioner 300 from outside is subjected to total heat exchange with a part of the return air RA by the second total heat exchanger 310, and then returned air RA that has flowed into the entire building ventilation air conditioning device 300. It is mixed with the other part of the air and air-conditioned by the second air conditioner 320.

  The supply air SA conditioned by the second air conditioner 320 is supplied to the first room R1 from the second air supply port 212 connected by a duct or the like. The supply air SA is supplied from the third air supply port 230 connected by a duct or the like to the third room R3. Further, the supply air SA is supplied from the fourth communication port 240 connected by a duct or the like to the fourth room R4.

  The first room R1 is supplied with outdoor air from the first air supply port 210 and supply air SA of the entire building ventilation air conditioner 300 from the second air supply port 212. Since the sum of the first air supply amount Sa41 and the second air supply amount Sa42 is equal to or less than the first exhaust amount Ea4, the air supplied into the first room R1 passes through the gap of the door D to another room. It is exhausted outside without flowing out into the room. Further, the total heat exchanger 12 performs total heat exchange between the air exhausted from the first exhaust port 211 and the air supplied to the first air supply port 210.

  The supply air SA supplied from the entire building ventilation air conditioner 300 to the third room R3 and the fourth room R4 flows into the second room R2 through the gap of the door D of each room. The air in each room that flows into the second room R2 is exhausted from the second exhaust port 220 by the second exhaust device 20 and flows into the entire building ventilation air conditioner 300.

  That is, the relationship between the air volumes in the rooms is “Ea4 ≧ Sa41 + Sa42”, “Sa41 <Ea4”, and “Ex4 = Sb4 + Sc4”.

  As described above, in the third embodiment, since the entire building ventilation air conditioner 300 that performs ventilation and air conditioning of each room of the building 1 is provided, it is possible to suppress the heat loss that occurs when the air is discharged from the building 1. Ventilation and air conditioning of each room of the building 1 can be performed.

  Further, the control device 100 operates the first air supply device 10 and the first air exhaust device 11 so that the sum of the first air supply amount Sa41 and the second air supply amount Sa42 is equal to or less than the first exhaust amount Ea4. To control. For this reason, it is possible to suppress the diffusion of pollutants generated in the first room R1 or moisture in the air to other rooms.

  DESCRIPTION OF SYMBOLS 1 Building, 2 Ventilation system, 10 1st air supply apparatus, 11 1st exhaust apparatus, 12 Total heat exchanger, 20 2nd exhaust apparatus, 30 3rd air supply apparatus, 50 Local exhaust apparatus, 100 Control apparatus, 110 Air Quality detection means, 120 operation section, 210 first air inlet, 211 first air outlet, 212 second air inlet, 220 second air outlet, 230 third air inlet, 240 fourth communication port, 250 fifth Exhaust vent, 300 Whole building ventilation air conditioner, 310 2nd total heat exchanger, 311 blower, 312 blower, 320 2nd air conditioner, 321 blower, 330 outdoor unit, AC air conditioner, B bathtub, D door, K kitchen, P Corridor, T toilet, R1 first room, R2 second room, R3 third room, R4 fourth room, R5 fifth room.

Claims (18)

A first chamber in which a first air supply port communicating with the outdoor and a first exhaust port communicating with the outdoor are formed;
A second chamber in which a second exhaust port communicating with the outdoor is formed and communicating with the first chamber;
A ventilation system that ventilates a third room that is formed with a third air supply port that communicates with the outside and communicates with the first room and the second room,
A first air supply device installed at the first air supply port;
A first exhaust device installed at the first exhaust port;
A second exhaust device installed at the second exhaust port;
A control device for controlling operations of the first air supply device, the first exhaust device, and the second exhaust device,
The control device includes:
The first exhaust device and the first exhaust device are stopped, the second exhaust device is driven, and the air supplied from the first intake port and the third intake port is supplied to the second exhaust port. A first ventilation mode for exhausting from,
The first air supply device, the first exhaust device, and the second exhaust device are driven, and the air supplied from the first air supply port is exhausted from the first exhaust port, and the third air supply port The ventilation system which switches between the 2nd ventilation mode which exhausts the air supplied from the said 2nd exhaust port. The control device includes:
In the second ventilation mode,
A first air supply amount that is an air amount supplied from the first air supply port by the first air supply device;
The ventilation system according to claim 1, wherein the first exhaust amount is the same as a first exhaust amount that is an air amount exhausted from the first exhaust port. The controller is
In the second ventilation mode,
The ventilation system according to claim 2, wherein the second exhaust amount, which is the amount of air exhausted from the second exhaust port by the second exhaust device, is less than the second exhaust amount in the first ventilation mode. The control device includes:
The ventilation system according to claim 2 or 3, wherein the first air supply amount in the second ventilation mode is made larger than the first air supply amount in the first ventilation mode. The controller is
In the second ventilation mode,
A first air supply amount that is the air amount that the first air supply device supplies from the first air supply port is greater than a first air supply amount that is the air amount that the first exhaust device exhausts from the first exhaust port. The ventilation system according to claim 1. The controller is
In the second ventilation mode,
The ventilation system according to claim 5, wherein the second exhaust amount, which is the amount of air exhausted from the second exhaust port by the second exhaust device, is less than the first exhaust amount. Air quality detecting means for measuring the air quality of the first room,
The control device includes:
In a state where the air quality is below a predetermined value, the first ventilation mode is executed,
The ventilation system according to any one of claims 1 to 6, wherein the second ventilation mode is executed in a state where the air quality is equal to or higher than the predetermined value. The controller is
In the second ventilation mode,
The ventilation system according to claim 7, wherein the larger the air quality value is, the more the first exhaust amount, which is the amount of air exhausted from the first exhaust port by the first exhaust device, is increased. It is equipped with an operation unit for inputting operations from the user.
The control device includes:
The ventilation system according to any one of claims 1 to 6, wherein the first ventilation mode and the second ventilation mode are switched according to an input from the operation unit. The control device includes:
The ventilation system according to claim 9, wherein the first exhaust amount, which is the amount of air exhausted from the first exhaust port, by the first exhaust device is varied in accordance with an input from the operation unit. A third air supply device installed at the third air supply port;
The control device includes:
Driving the first air supply device, the first exhaust device, the second exhaust device, and the third air supply device;
Air supplied from the first air supply port is exhausted from the first exhaust port, and air supplied from the third air supply port is exhausted from the first exhaust port and the second exhaust port. The ventilation system according to any one of claims 1 to 10, wherein three ventilation modes are executed. The control device includes:
In the third ventilation mode,
A first air supply amount that is the air amount that the first air supply device supplies from the first air supply port is greater than a first air supply amount that is the air amount that the first exhaust device exhausts from the first exhaust port. The ventilation system according to claim 11. An air conditioner for air conditioning the air in the third room;
The control device includes:
The ventilation system according to any one of claims 1 to 12, wherein the air conditioning capacity of the air conditioner is increased as the first exhaust amount, which is the amount of air exhausted from the first exhaust port by the first exhaust device, is larger. A total heat exchanger for performing total heat exchange between air exhausted from the first exhaust port by the first exhaust device and air supplied from the first air supply device to the first air supply port; The ventilation system according to any one of claims 1 to 13. A second total heat exchanger that performs total heat exchange between part of the air exhausted from the second exhaust port and air supplied from the outside;
Air that is a mixture of the other part of the air exhausted from the second exhaust port and the air that has passed through the second total heat exchanger is air-conditioned, so that the first chamber and the third chamber are mixed. The ventilation system as described in any one of Claims 1-14 provided with the 2nd air conditioner to supply. The controller is
In the second ventilation mode,
A first air supply amount that is an air amount supplied from the first air supply port by the first air supply device, and a second air supply amount that is an air amount supplied from the second air conditioner to the first room. With the sum,
The ventilation system according to claim 15, wherein the first exhaust device is set to be equal to or less than a first exhaust amount that is an air amount exhausted from the first exhaust port. A first chamber in which a first air supply port communicating with the outdoor space and a first exhaust port communicating with the outdoor space are formed;
A second chamber in which a second exhaust port communicating with the outdoor space is formed and communicating with the first chamber;
A third air supply port formed in communication with the outdoor space, and a third room communicating with the first room and the second room, and
A building in which the ventilation system according to any one of claims 1 to 16 is arranged. A first air supply device installed at a first air supply port communicating with the first room and the outside; a first air exhaust device installed at a first exhaust port communicating with the first room and the outside; A second exhaust device installed at a second exhaust port communicating with the second room communicating with the first room and the outside, the first room, the second room, And a control device for the ventilation system, wherein a third air supply port communicating with the outdoor space is formed and the ventilation system for controlling the third room communicating with the first room and the second room is controlled. Because
The first exhaust device and the first exhaust device are stopped, the second exhaust device is driven, and the air supplied from the first intake port and the third intake port is supplied to the second exhaust port. A first ventilation mode for exhausting from,
The first air supply device, the first exhaust device, and the second exhaust device are driven, and the air supplied from the first air supply port is exhausted from the first exhaust port, and the third air supply port A control device for a ventilation system that switches between a second ventilation mode for exhausting air supplied from the second exhaust port.

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