JP2022098131A - Air-conditioning system of building - Google Patents

Abstract

To provide an air-conditioning system which can maintain air quality in a building in a favorable state while enhancing air-conditioning efficiency.SOLUTION: In an air-conditioning system 1 of a building, the air-conditioning system 1 includes: a first air-conditioning system 21 for supplying ventilated/air-conditioned air into a plurality of first living rooms 11 in the building; and a second air-conditioning system 22 for supplying ventilated/air-conditioned air into at least one second living room 12 which is different from the first living rooms 11. The first air-conditioning system 21 comprises one first heat source 23, an ambient air withdrawal part 24, and a first supply path 25 for supplying the ventilated/air-conditioned air into the plurality of first living rooms 11. The second air-conditioning system 22 comprises a second supply path 42 for making at least one of the first living rooms 11 communicate with the second living room 12, and an exhaust device 44 for withdrawing air from at least one of the first living rooms 11 into the second living room 12 via the second supply path 42, and discharging the air to the outside of the building.SELECTED DRAWING: Figure 1

Description

The present invention relates to a building air conditioning system.

The following Patent Document 1 describes an air conditioning system for a building. In this air-conditioning system, ventilation and air-conditioning are performed while circulating the air-conditioned air heat-exchanged by the air conditioner to a plurality of living rooms in the building.

Japanese Unexamined Patent Publication No. 2020-165606

In recent years, due to the diversification of the life cycle of residents, the frequency of use of each room tends to be different. Therefore, there is a problem that the air-conditioning efficiency is lowered when the air-conditioned air is uniformly circulated in all the living rooms in the building.

There was also a request to ventilate and air-condition some of the rooms in the building separately from the other rooms in order to maintain the air quality in the building in good condition.

The present invention has been devised in view of the above circumstances, and the main object of the present invention is to provide an air conditioning system capable of maintaining the air quality in a building in a good state while improving the air conditioning efficiency. There is.

The present invention is an air-conditioning system for a building, in which a first air-conditioning system that supplies ventilation / air-conditioned air to a plurality of first rooms in the building and at least one second room separate from the first room. The first air conditioning system includes one first heat source, an outside air intake unit, and the ventilation / air conditioning air to each of the plurality of first living rooms, including a second air conditioning system that supplies ventilation / air conditioning air. The second air-conditioning system includes a second supply path that communicates between at least one of the first living rooms and the second living room, and the second supply path. It is characterized by comprising an exhaust device for taking in air from at least one of the first living rooms into the second living room and discharging the air to the outside of the building.

In the air conditioning system according to the present invention, the exhaust device may have the ability to keep the second living room at a negative pressure with respect to the second supply path.

In the air conditioning system according to the present invention, the first supply path may not be connected to the second living room.

In the air conditioning system according to the present invention, the second supply path may be a gap in the first living room, a gap in the second living room, and a non-living space connecting these gaps.

In the air conditioning system according to the present invention, the second air conditioning system may further include a second heat source capable of air conditioning the second living room.

In the air conditioning system according to the present invention, the first air conditioning system may further include a purifying device for purifying air.

By adopting the above configuration, the air conditioning system of the present invention can maintain the air quality in the building in a good state while improving the air conditioning efficiency.

It is a conceptual diagram which shows an example of a building using the air-conditioning system of a building. It is a conceptual diagram which shows an example of the structure of a control device.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. It must be understood that the drawings include exaggerated representations and representations that differ from the dimensional ratio of the actual structure in order to aid in understanding the content of the invention. Further, throughout the embodiments, the same or common elements are designated by the same reference numerals, and duplicate description is omitted. Furthermore, the specific configurations shown in the embodiments and drawings are for understanding the contents of the present invention, and the present invention is not limited to the specific configurations shown.

The building air-conditioning system of the present embodiment (hereinafter, may be simply referred to as “air-conditioning system”) is for ventilating and air-conditioning the inside of the building. FIG. 1 is a conceptual diagram showing an example of a building 2 using the air conditioning system 1 of the building.

[building]
Although the building 2 of the present embodiment is exemplified as a house, it may be a building or the like. The building 2 of the present embodiment is configured to include an underfloor space 3 and an above-floor space 4.

[Underfloor space]
The underfloor space 3 is a space surrounded by the foundation 5, the ground, and the floor 6 on the first floor. The foundation 5 is provided with an opening 7 for taking in the outside air A1. The outside air A1 taken in from the opening 7 exchanges heat with the underground heat having little temperature change throughout the year through the ground. As a result, the underfloor space 3 can store air that is relatively cool in the summer and relatively warm in the winter (hereinafter, may be simply referred to as “underfloor air”) as compared with the outside air.

[Floor space]
The above-floor space 4 is a space provided above the underfloor space 3. The floor space 4 of the present embodiment includes a living room 10 and a non-living room space 13.

[room]
The living room 10 of the present embodiment is provided on the first floor and the second floor, respectively, in the building 2, but may be provided on only one of them, or may be provided on the third floor or higher. The living room 10 of the present embodiment includes a plurality of first living rooms 11 and at least one second living room 12 separate from the first living room 11.

[1st room]
The plurality of first living rooms 11 are living rooms in which ventilation / air-conditioned air (that is, air used for ventilation and air conditioning) A2 is supplied from the first air-conditioning system 21 described later among the living rooms 10 in the building 2. The plurality of first living rooms 11 of the present embodiment are provided on the first floor and the second floor, respectively, in the building 2, but the present invention is not limited to such an embodiment.

The plurality of first living rooms 11 of the present embodiment are classified as living rooms that are frequently used by residents of the building 2 as compared with the second living room 12. Examples of the frequently used living room (first living room 11) include a living room, a kitchen, and a master bedroom.

The plurality of first living rooms 11 of the present embodiment are partitioned by, for example, a partition wall 14 and a fitting 16 provided at an opening of the partition wall 14. A gap 17 is provided in each first living room 11. The gap 17 of the present embodiment is composed of an undercut provided between the fitting 16 and the opening, but is not limited to such an embodiment.

[Second room]
The second living room 12 is a living room in which the ventilation / air-conditioned air A2 is supplied from the second air-conditioning system 22 described later among the living rooms 10 in the building 2. The second living room 12 of the present embodiment is provided on the second floor in the building 2, but is not limited to such an embodiment.

The second living room 12 of the present embodiment is classified as a living room in which the resident uses less frequently than the first living room 11. Examples of the less frequently used living room (second living room 12) include a children's room and a guest room (Japanese-style room).

The second living room 12 of the present embodiment is partitioned by, for example, a partition wall 14 and a fitting 16 provided at an opening of the partition wall 14. The second living room 12 is provided with a gap 18. The gap 18 of the present embodiment is composed of an undercut provided between the fitting 16 and the opening, but is not limited to such an embodiment.

[Non-living space]
The non-living room space 13 is a space other than the living room 10 in the floor space 4. The non-living room space 13 of the present embodiment includes, for example, a corridor (hall) 19, stairs (not shown), a toilet, a washroom, a bathroom, and the like. In the present embodiment, on the second floor of FIG. 1, a corridor 19 (non-living room space 13) is connected between the first living room 11 and the second living room 12.

[Air conditioning system]
The air conditioning system 1 of the present embodiment includes a first air conditioning system 21 and a second air conditioning system 22.

[1st air conditioning system]
The first air-conditioning system 21 is for supplying the ventilation / air-conditioned air A2 to the plurality of first living rooms 11. The first air conditioning system 21 of the present embodiment includes one first heat source 23, an outside air intake unit 24, and a first supply path 25.

[1st heat source]
The first heat source 23 of the present embodiment is for obtaining air (air-conditioned air) that has been heat-exchanged by a heat exchanger (not shown). The first heat source 23 of the present embodiment includes a chamber 26 and a first indoor air conditioner 27 provided inside the chamber 26. The first heat source 23 is not limited to such an embodiment as long as air-conditioned air can be obtained.

[Chamber]
The chamber 26 of the present embodiment is formed in a box shape having a space inside thereof. A heat insulating material (not shown) may be arranged on the wall portion that divides the space. The chamber 26 of the present embodiment is installed on the floor 6, but may be installed in the underfloor space 3 or in the back of the cabin, for example. The chamber 26 is installed on the first floor of the building 2, but may be installed on the second floor or higher, for example.

The chamber 26 has an air introduction port 28 for taking in at least a part of the air A3 of the first living room 11. The air introduction port 28 of the present embodiment is adjacent to the first living room 11. As a result, the air introduction port 28 can take in the air (return air) A3 of the first living room 11 into the inside of the chamber 26.

[First room air conditioner]
The case where the first indoor air conditioner 27 of the present embodiment is a general household separate type air conditioner is exemplified. The first indoor air conditioner 27 is configured as a set with an outdoor unit (not shown) installed outside the building 2. Although the first indoor air conditioner 27 of the present embodiment is capable of heating operation and cooling operation, it may be capable of operating only one of them.

The first indoor air conditioner 27 of the present embodiment has a suction port 27a and an outlet 27b. The suction port 27a is provided adjacent to the air introduction port 28 of the chamber 26 and the outside air intake portion 24 (the other end of the duct 24A) described later. Therefore, the air (return air) A3 of the first living room 11 and the outside air (underfloor air) A1 can be supplied to the suction port 27a. On the other hand, from the outlet 27b, the ventilation / conditioned air A2 that has exchanged heat with these air-fuel mixture (air A3 and outside air A1 of the first living room 11) is discharged.

[Outside air intake section]
The outside air intake unit 24 is for taking in the outside air (underfloor air) A1 used for ventilation in the building 2. The outside air intake unit 24 of the present embodiment is configured to include a duct 24A.

One end of the duct 24A of the present embodiment communicates with the underfloor space 3, and the other end communicates with the chamber 26. As a result, the duct 24A (outside air intake unit 24) can supply the outside air (underfloor air) A1 to the chamber 26 (suction port 27a of the first indoor air conditioner 27).

It is desirable that a fan 31 for sending (pressing) the outside air (underfloor air) A1 to the chamber 26 side is provided on one end side of the duct 24A of the present embodiment. As a result, the outside air intake unit 24 can smoothly supply (push) the outside air (underfloor air) A1 into the chamber 26. As used herein, a "fan" is a machine for pumping air. Therefore, the fan is not particularly limited as long as it can pump air.

[First supply path]
The first supply path 25 is for supplying the ventilation / air-conditioned air A2 to the plurality of first living rooms 11, respectively. The first supply passage 25 of the present embodiment is configured to include the first duct 25A and the second duct 25B, but is not limited to such an embodiment.

One ends of the first duct 25A and the second duct 25B of the present embodiment are arranged inside the chamber 26 (downstream side of the ventilation / air conditioning air A2), respectively. The other end of the first duct 25A communicates with the first living rooms 11 and 11 on the first floor, respectively. The other end of the second duct 25B communicates with the first living room 11 on the second floor. As a result, the first supply path 25 (first duct 25A and second duct 25B) can supply the ventilation / air-conditioned air A2 to the plurality of first living rooms 11.

The first duct 25A and the second duct 25B of the present embodiment are provided with fans 32 and 33 for sending (pressing) the ventilation / conditioned air A2 to the first living room 11 side, respectively. As a result, the first supply path 25 can smoothly supply (push) the ventilation / air-conditioned air A2 to the plurality of first living rooms 11.

[Control device]
The first indoor air conditioner 27, the fan 31 of the outside air intake unit 24, and the fans 32 and 33 of the first supply path 25 may be controlled by the control device 35. The control device 35 of this embodiment is composed of a computer. The control device 35 is installed, for example, on a partition wall or the like, but is not limited to such an embodiment. FIG. 2 is a conceptual diagram showing an example of the configuration of the control device 35.

The control device 35 includes a calculation unit 36 composed of a CPU (central processing unit), a storage unit 37 in which processing procedures are stored, and a work memory 38 for reading processing procedures and the like stored in the storage unit 37. It is configured to include.

An input means 39 is connected to the calculation unit 36. The input means 39 is composed of, for example, an operation button, a touch panel, or the like provided in the housing (shown in FIG. 1) of the control device 35. By such an input means 39, for example, information input by a resident or the like can be transmitted to the calculation unit 36.

An output means 40 is connected to the calculation unit 36. The output means 40 is configured as a display provided in the housing (shown in FIG. 1) of the control device 35. By transmitting a signal to the output means 40, the calculation unit 36 can display, for example, the operating status of the air conditioning system 1 on the output means 40.

The first indoor air conditioner 27, the fan 31 of the outside air intake unit 24, and the fans 32 and 33 of the first supply path 25 (first duct 25A and second duct 25B) are connected to the calculation unit 36. .. As a result, the calculation unit 36 can control the operation of the first indoor air conditioner 27 and the fans 31 to 33 to control their operation and grasp the operation status.

[Action of the first air conditioning system]
Next, the operation of the first air conditioning system 21 of the present embodiment will be described. As shown in FIG. 1, in the first air conditioning system 21, the outside air (underfloor air) A1 is supplied to the chamber 26 via the outside air intake unit 24. Further, in the first air conditioning system 21, the air (return air) A3 of the first living room 11 is supplied to the chamber 26 via the air introduction port 28.

These air-fuel mixture (outside air A1 and air A3 of the first living room 11) are supplied to the suction port 27a of the first indoor air conditioner 27 and are heat exchanged by the heat exchanger inside the first indoor air conditioner 27. .. As a result, the ventilation / conditioned air A2 is discharged from the outlet 27b of the first indoor air conditioner 27.

The ventilation / air-conditioned air A2 is supplied to the plurality of first living rooms 11 via the first supply passage 25 (first duct 25A and second duct 25B), respectively. As a result, the first air-conditioning system 21 of the present embodiment can ventilate and air-condition a plurality of first living rooms 11.

The first supply path 25 of the present embodiment is not connected to the second living room 12. As a result, the first air-conditioning system 21 can preferentially distribute the heat energy of the ventilation / air-conditioning air A2 to the first living room 11 which is frequently used by residents. Therefore, the air conditioning system 1 (first air conditioning system 21) can improve the air conditioning efficiency.

In the first air conditioning system 21 of the present embodiment, at least a part of the air (return air) A3 supplied to the first living room 11 is supplied to the chamber 26 through the air introduction port 28. As a result, the first air conditioning system 21 can circulate the air A3 in the first living room 11, so that the temperature change in the first living room 11 can be minimized and the air conditioning efficiency can be improved.

[Purification device]
The first air conditioning system 21 may be provided with a purifying device 41 for purifying air. Since such a purifying device 41 can purify while circulating the air A3 of the plurality of first living rooms 11, it is possible to maintain the air quality of the plurality of first living rooms 11.

The purification device 41 of the present embodiment is arranged between the outlet 27b of the first indoor air conditioner 27 and the first supply passage 25 (first duct 25A and second duct 25B). As a result, the purification device 41 can efficiently remove dust, viruses, and the like contained in the ventilation / air-conditioning air A2, so that the air quality of the plurality of first living rooms 11 can be improved.

The purifying device 41 is not particularly limited as long as it can purify air. The purification device 41 of the present embodiment is configured as a filter member. As the filter member, a known one can be appropriately selected. As the filter member of the present embodiment, for example, a HEPA (High Efficiency Particulate Air) filter, a photocatalyst filter, an activated carbon deodorizing filter, an electrostatic precipitator filter, or the like can be adopted. Further, a filter member (purification device 41) may be configured by combining these.

[Second air conditioning system]
The second air conditioning system 22 is for supplying the ventilation / air conditioning air A2 to the second living room 12. The second air conditioning system 22 of the present embodiment includes a second supply path 42 and an exhaust device 43.

[Second supply path]
The second supply channel 42 is for communicating at least one of the first living rooms 11 with the second living room 12. The second supply path 42 of the present embodiment has a gap 17 in the first living room (in this example, the first living room on the second floor) 11, a gap 18 in the second living room 12, and a non-living space 13 connecting these gaps. (In this embodiment, it is composed of a corridor 19). Since such a second supply path 42 can communicate between the first living room 11 and the second living room 12 without using, for example, a duct or the like, the air conditioning system 1 (second air conditioning system 22). Installation cost can be reduced.

[Exhaust device]
The exhaust device 43 is for taking in air A3 from at least one of the first living rooms 11 into the second living room 12 and discharging it to the outside of the building through the second supply path 42. The exhaust device 43 can be appropriately configured. The exhaust device 43 of the present embodiment is configured as a fan 44 for sending (pressing) the air in the second living room 12 to the outside of the building.

The fan 44 of the exhaust device 43 may be controlled by the control device 35. As shown in FIG. 2, the fan 44 of this embodiment is connected to the arithmetic unit 36. As a result, the calculation unit 36 can control the operation of the fan 44 and grasp the operation status.

[Action of the second air conditioning system]
Next, the operation of the second air conditioning system 22 will be described. As shown in FIG. 1, in the second air conditioning system 22, the air A4 of the second living room 12 is discharged to the outside of the building by the operation of the exhaust device 43, so that the second living room 12 is made a negative pressure. As a result, the second air conditioning system 22 transfers the air A3 from at least one of the first living rooms 11 (in this example, the first living room 11 on the second floor) to the second living room 12 via the second supply path 42. Can be imported into.

The air A3 in the first living room 11 includes the ventilation / air-conditioned air A2 supplied from the first air-conditioning system 21. As a result, the second air conditioning system 22 can ventilate and air-condition the second living room 12.

In the second air-conditioning system 22 of the present embodiment, the air A3 of the first living room 11 purified by the purifying device 41 of the first air-conditioning system 21 can be supplied to the second living room 12, so that the second living room 12 can be supplied with air A3. Air quality can be maintained.

The second air conditioning system 22 of the present embodiment discharges the air A4 of the second living room 12 to the outside of the building. Therefore, the second air-conditioning system 22 can ventilate and air-condition the second living room 12 separately from the first living room 11 without circulating the air A4 of the second living room 12 in the building 2. ..

The second air conditioning system 22 of the present embodiment can prevent the air A4 of the second living room 12 whose air quality has deteriorated from being supplied to the first living room 11, so that the air quality in the building 2 is maintained. To. As a result, for example, when a person infected with a virus or the like is treated in the second living room 12, the virus contained in the air A4 of the second living room 12 can be prevented from being discharged to the first living room 11. Useful for infectious disease control in building 2.

In order to effectively exert such an action, the exhaust device 43 keeps the second living room 12 at a negative pressure with respect to the second supply path 42 (in this example, the non-living room space 13 (corridor 19)). It is desirable to have the ability. As a result, the second air conditioning system 22 can more reliably prevent the air A4 of the second living room 12 from being supplied to the first living room 11 (including the non-living room space 13), and thus the inside of the building 2. Can effectively maintain the air quality of. In order to effectively exert such an action, in the second air conditioning system 22, the air volume of the fan 44 of the exhaust device 43 may be larger than the air volume of the fan 33 of the second duct 25B.

Control so that the air volume of the fan 44 of the exhaust device 43 is larger than the supply amount of the ventilation / conditioned air A2 to the first living room (living room on the second floor) 11 (the maximum air volume of the fan 33 of the second duct 25B). The device 35 may control the exhaust device 43 (fan 44) and the fan 33. In this case, the control device 35 adjusts the air volumes of the fan 44 and the fan 33 based on the operating conditions of the exhaust device 43 (fan 44) and the fan 33. As a result, the second air conditioning system 22 can always keep the second living room 12 in a negative pressure with respect to the first living room 11, so that the air A4 of the second living room 12 is supplied to the first living room 11. Can be reliably prevented

[Second heat source]
Since the first supply path 25 is not connected to the second living room 12 of the present embodiment, the heat energy of the ventilation / air-conditioned air A2 by the first air-conditioning system 21 may not be sufficiently distributed. Therefore, the second air-conditioning system 22 may further include a second heat source 45 capable of air-conditioning the second living room 12.

The second heat source 45 of the present embodiment includes a second indoor air conditioner 46. Like the first indoor air conditioner 27, the second indoor air conditioner 46 is composed of a general household separate type air conditioner, and is set as a set with an outdoor unit (not shown) installed outside the building 2. It is configured.

The second indoor air conditioner 46 of the present embodiment is fixed to a partition wall or the like of the second living room 12. As a result, the second indoor air conditioner 46 can air-condition the second living room 12 while exchanging heat with the air A4 in the second living room 12.

Since the second heat source 45 of the present embodiment is used only for air conditioning of the second living room 12, it does not affect the ventilation of the second living room 12. Therefore, when the resident does not use the second living room 12, the operation of the second heat source 45 can be stopped, so that an increase in air conditioning cost can be suppressed.

The second heat source 45 (second indoor air conditioner 46) may be controlled by the control device 35. As shown in FIG. 2, the second indoor air conditioner 46 is connected to the calculation unit 36. As a result, the calculation unit 36 can control the operation of the second room air conditioner 46 according to, for example, the usage status of the second living room 12, so that the comfort in the second living room 12 can be improved.

[Action of air conditioning system]
As shown in FIG. 1, the air conditioning system 1 of the present embodiment includes a first air conditioning system 21 and a second air conditioning system 22. Therefore, for example, the air conditioning system 1 can independently ventilate and air-condition the plurality of first living room 11 and the second living room 12 according to the frequency of use of the first living room 11 and the second living room 12. can. Therefore, the air conditioning system 1 of the present embodiment can improve the air conditioning efficiency.

Further, in the air conditioning system 1 of the present embodiment, the air A3 from the first living room 11 can be taken into the second living room 12 and discharged to the outside of the building by the second air conditioning system 22. The second living room 12 can be ventilated and air-conditioned separately from the first living room 11. As a result, the air conditioning system 1 can ventilate the second living room 12 while suppressing the supply of the air A4 of the second living room 12 whose air quality has deteriorated to the first living room 11, for example. The air quality in the building 2 can be maintained.

Although the particularly preferred embodiment of the present invention has been described in detail above, the present invention is not limited to the illustrated embodiment and can be modified into various embodiments.

1 Air conditioning system 11 1st living room 12 2nd living room 21 1st air conditioning system 22 2nd air conditioning system 23 1st heat source 24 Outside air intake unit 25 1st supply path 42 2nd supply path 44 Exhaust device

Claims (6)

The air conditioning system of the building
A first air conditioning system that supplies ventilation and conditioned air to multiple first rooms in the building,
A second air-conditioning system that supplies ventilation / air-conditioned air to at least one second room other than the first room is included.
The first air conditioning system includes one first heat source, an outside air intake unit, and a first supply path for supplying the ventilation / air conditioning air to each of the plurality of first living rooms.
The second air conditioning system has air from at least one of the first living rooms via a second supply path communicating between at least one of the first living rooms and the second living room and the second supply path. Is provided with an exhaust device for taking the air into the second living room and discharging the air to the outside of the building.
Air conditioning system. The air conditioning system according to claim 1, wherein the exhaust device has an ability to keep the second living room at a negative pressure with respect to the second supply path. The air conditioning system according to claim 1 or 2, wherein the first supply path is not connected to the second living room. The air conditioning system according to any one of claims 1 to 3, wherein the second supply path is a gap between the first living room, a gap between the second living rooms, and a non-living room space connecting the gaps. The air-conditioning system according to any one of claims 1 to 4, wherein the second air-conditioning system further includes a second heat source capable of air-conditioning the second living room. The air conditioning system according to any one of claims 1 to 5, wherein the first air conditioning system further includes a purifying device for purifying air.

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