JP2023118915A - Construction method of air conditioning system - Google Patents

Abstract

To provide a construction method of an air conditioning system and a design method of the air conditioning system in which a room for installing an air conditioner is not needed, the air conditioner, an exhaust port, an air supply port are easily arranged being separated from each other, and short circuit hardly occurs in a blowout airflow from the air conditioner.SOLUTION: In a construction method of an air conditioning system and a design method of the air conditioning system, in a building 1, a return section adjacent to a plurality of rooms is formed. In the rooms, intake parts 9a, 9b, 9c, 9d, 18a, 18b, 18c, 18d are provided for blowing out air delivered from blowers 40a, 40b, 40c, 40d, 41a, 41b, 41c, 41d. Between the rooms and the return section, an exhaust part 52 is provided for forming an exhaust airflow toward the return section from the rooms. In the return section, the plurality of blowers 40a, 40b, 40c, 40d, 41a, 41b, 41c, 41d and at least one air conditioner 30a are installed.SELECTED DRAWING: Figure 1

Description

The present invention relates to an air conditioning system construction method and an air conditioning system design method for air conditioning a plurality of rooms in a building with one air conditioner and a fan.

Conventionally, this type of air conditioning system is known to provide an air conditioner room inside a building, adjust the temperature of the air sucked into the air conditioner room with an air conditioner, and blow the air to a plurality of rooms with a fan (for example, , see Patent Document 1).
The air conditioning system will be described below with reference to FIG.
As shown in FIG. 8, an air conditioner room 101 is installed in the attic of a building. It is divided into two rooms, 133 and dispersion room 200.
One side wall 111 of the mixing section 133, which is one room of the air conditioner room 101, is provided with an attic air suction port 400 and an outside air introduction port 311 as external air suction ports. 116. An air conditioner 102 is installed on one side wall 111 . The louver 115 communicates with the space in the house in order to return the air blown into the house from the air conditioner room 101 to the air conditioner room 101 again.
A distribution room 200 that is the other room of the air conditioner room 101 is provided with a grid-shaped supply air blower mounting wall 144 that is parallel to the hanging wall 106 . The supply air blower 104 is attached to the supply air blower mounting wall 144 . The side opposite to the hanging wall 106 with respect to the supply air blower mounting wall 144, that is, between the supply air blower mounting wall 144 and the wall surface 112b, is connected to the supply air blower 104 and arranged in each room in the room. The wall surface 112b and the floor surface 116 of the air conditioner room 101 are provided with through-holes (not shown) through which the air supply ducts pass, corresponding to the number of living rooms to be air-conditioned. formed.
The supply air blower 104 is driven by a DC motor, and the air in the air conditioner room 101 is sucked from the air intake port 141, which is the fan air intake port of the supply air blower 104, and blown to a plurality of rooms in the house. Air circulates between the air conditioner room 101 and the room. Air from the air conditioner flows out to the mixing section 133 by driving the air conditioner 102 . By driving the supply air blower 104 , the air from the attic flows out from the attic air suction port 400 to the air conditioner room 101 , and the outside air flows out to the air conditioner room 101 from the outside air introduction port 311 . In this way, multiple rooms in the house are air-conditioned using one air conditioner 102 and multiple supply air blowers 104 .

JP 2012-57880 A

In such a conventional air conditioning system, it is necessary to provide an air conditioner room as a dedicated room in order to install the air conditioner. In addition, it is necessary to provide a mixing unit in the air conditioning room in order to mix the air drawn into the air conditioner room, that is, the intake air flow, and the air that is blown out of the air conditioner, that is, the air flow. In order to prevent short circuit, which is a phenomenon in which air circulates in a narrow area due to the air conditioner, exhaust port, and air supply port being too close to each other, the installation positions of the air conditioner, exhaust port, and air supply port are adjusted. It is necessary to devise ways to separate them as much as possible. Thus, the air conditioner room requires a certain amount of volume, and construction is not easy.

The present invention solves such conventional problems, does not require a room for installing an air conditioner, can be easily arranged apart from the air conditioner, the exhaust port, and the air supply port, and can be easily separated from the air conditioner. It is an object of the present invention to provide an air conditioning system construction method and an air conditioning system designing method in which short-circuiting of blown air currents is unlikely to occur.

In order to achieve the above object, the construction method of the air conditioning system of the present invention forms a return section adjacent to a plurality of rooms in the building, provides an air intake section for blowing air sent from the blower in the room, and the return section is provided with an exhaust section that forms an exhaust airflow from the room toward the return section, and the return section is provided with a plurality of blowers and at least one air conditioner.
By this means, it is possible to obtain an air conditioning system in which a plurality of rooms can be air-conditioned by the air conditioner installed in the return section, and it is unnecessary to provide a dedicated air conditioner room for installing the air conditioner.
Another means is to use staircases or corridors within the building as return compartments.
As a result, since the return section has a certain volume for installing the air conditioner, it is possible to obtain an air conditioning system in which the air conditioner, the exhaust port, and the intake port can be easily arranged separately in the return section.
Another means is to provide the suction port of the blower so as to avoid the blowing direction of the blowing airflow from the air conditioner.
As a result, it is possible to obtain an air conditioning system in which short-circuiting of the airflow from the air conditioner is unlikely to occur.
Another means is to install a blower below an outlet for the airflow from the air conditioner, and set the direction of the airflow from the air conditioner to be substantially horizontal.
As a result, it is possible to obtain an air conditioning system in which the air blown from the air conditioner is less likely to short-circuit.
Another means is to provide at least one exhaust section above the air conditioner.
As a result, it is possible to obtain an air conditioning system in which short-circuiting of the airflow from the air conditioner is unlikely to occur.
Another means is to increase the total amount of blown air from a plurality of blowers to be greater than the amount of air-conditioned air from the air conditioner.
As a result, an air conditioning system that does not require a dedicated air conditioner room and can be easily arranged in the return section with the air conditioner, the exhaust port, and the air intake port separated from each other can be obtained.
In order to achieve the above object, the air conditioning system design method of the present invention comprises an air conditioning capacity determination step of determining the air conditioning capacity of the air conditioner by calculating the air conditioning load for the building; A blast volume determination step for determining the blast volume to be used, a total blast volume calculation step for calculating the total blast volume by summing the blast volumes for each room determined in the blast volume determination step, and a total blast volume calculation step for determining the total blast volume an air conditioning air volume determination step of determining the optimum air conditioning air volume of the air conditioner from the total air volume; selecting a fan for blowing air to each room from the air volume determined in the air volume determining step; An air conditioner having the determined air conditioning capacity and capable of setting an air volume equal to or less than the optimum air conditioning air volume determined in the air conditioning air volume determination step is selected.
By this means, the building has a plurality of rooms and a return section, each room is provided with an intake section for blowing air sent from the blower, and the room is provided with an exhaust airflow from the room toward the return section. A plurality of fans and at least one air conditioner are installed in the return section, the air in the return section is guided from the intake section to the room, and the air in the room is returned from the exhaust section. The fans and air conditioners used in the air conditioning system leading to the compartment can be optimally selected.
Another means is that when an air conditioner having the air conditioning capacity determined in the air conditioning capacity determination step cannot set an air volume less than or equal to the optimum air volume determined in the air volume determination step, the air volume can be set by the air conditioner. The blowers are selected so that the minimum air-conditioning air volume is 70% or less of the total air-blowing volume.
By this means, the building has a plurality of rooms and a return section, each room is provided with an intake section for blowing air sent from the blower, and the room is provided with an exhaust airflow from the room toward the return section. A plurality of fans and at least one air conditioner are installed in the return section, the air in the return section is guided from the intake section to the room, and the air in the room is returned from the exhaust section. In the selection of fans and air conditioners used in the air conditioning system leading to the compartment, the air conditioning air volume and the total air volume can be optimally designed, especially when the total air volume required by the blower is small due to the small total volume of the room. .
Another means is to select a blower provided with an air volume adjusting means capable of adjusting the air volume.
With this means, after the construction of the air conditioning system, the air volume adjusting means can be used to increase or decrease the air volume to adjust the air conditioning capacity in response to the fluctuation of the air conditioning load for each room.

According to the present invention, there is no need to provide an air conditioner room, construction can be easily performed, the air conditioner, the exhaust port, and the air intake port can be easily arranged, and the air conditioning system can be easily constructed. can provide.
In addition, the airflow from the air conditioner is less prone to short-circuiting, is diffused and mixed, and can supply conditioned air with uniform temperature and humidity to multiple rooms. can provide

1 floor plan view of a building showing the configuration of an air conditioning system according to Embodiment 1 of the present invention 2nd floor plan of the same building Enlarged plan view of the staircase on the second floor of the same building AA sectional view of the second floor staircase part of the same building BB sectional view of the second floor staircase part of the same building A plan view of a building showing the configuration of an air conditioning system according to Embodiment 2 of the present invention. CC sectional view of the corridor part of the same building Perspective view showing an air conditioning room of a conventional air conditioning system

In the construction method of the air conditioning system according to the first embodiment of the present invention, the building is provided with a return section adjacent to a plurality of rooms, the room is provided with an intake section for blowing air sent from the blower, and the room is and the return section, an exhaust section that forms an exhaust airflow from the room toward the return section is provided, and the return section is provided with a plurality of fans and at least one air conditioner, and the return The air is discharged from multiple rooms in the building by the air conditioners operated in the compartments, the temperature and humidity are adjusted in the return compartments, and the air is sent to the multiple rooms in the building by the fans, thereby adjusting the air conditioning in the building. It can be carried out.

In the construction method of the air conditioning system according to the second and third embodiments of the present invention, the staircases and corridors in the building are used as the return section, and the air conditioning in the building can be performed in the return section. , there is no need to provide a dedicated air conditioner room, and a certain amount of volume for installing the air conditioner can be secured.

In the construction method of the air conditioning system according to the fourth embodiment of the present invention, the suction port of the blower is provided so as to avoid the blowing direction of the airflow from the air conditioner, and the airflow from the air conditioner directly flows into the blower. It is not easily sucked into the air, does not easily short-circuit, and can be diffused and mixed in the return compartment.

A method for constructing an air conditioning system according to a fifth embodiment of the present invention is to install a blower below an air outlet for airflow from an air conditioner, and set the direction of airflow from the air conditioner to be substantially horizontal. , the air blown from the air conditioner is not directly sucked into the blower, is less likely to short-circuit, and can be diffused and mixed in the return section.

In the construction method of the air conditioning system according to the sixth embodiment of the present invention, at least one or more exhaust units are provided above the air conditioner, and the air exhausted from the building is sucked into the air conditioner. , the operation control of the air conditioner can be performed by detecting a temperature close to the room temperature.

In the construction method of the air-conditioning system according to the seventh embodiment of the present invention, the total amount of air blown by the plurality of fans is made larger than the air-conditioning air amount of the air conditioner, and the air-conditioning air amount more than the air-conditioning air amount of the air conditioner is sent to the return section. Since the air volume is exhausted from and inflowed from the rooms in the building, a short circuit is less likely to occur, and the air blown from the air conditioner and the inflow air from the rooms can be mixed in the return section.

An air-conditioning system design method according to an eighth embodiment of the present invention includes an air-conditioning capacity determination step of determining the air-conditioning capacity of an air conditioner by calculating an air-conditioning load for a building; A blast volume determination step for determining the blast volume to be used, a total blast volume calculation step for calculating the total blast volume by summing the blast volumes for each room determined in the blast volume determination step, and a total blast volume calculation step for determining the total blast volume an air conditioning air volume determination step of determining the optimum air conditioning air volume of the air conditioner from the total air volume; selecting a fan for blowing air to each room from the air volume determined in the air volume determining step; An air conditioner having the determined air conditioning capacity and capable of setting an air volume equal to or less than the optimum air volume determined in the air volume determination step is selected, and the blower and the air conditioner can be optimally selected.

In the air conditioning system design method according to the ninth embodiment of the present invention, the air conditioner having the air conditioning capacity determined in the air conditioning capacity determining step sets the air volume to an air volume equal to or less than the optimum air conditioning air volume determined in the air conditioning air volume determining step. If this is not possible, the blower should be selected so that the minimum airflow volume that can be set by the air conditioner is 70% or less of the total airflow volume. is small, the air conditioning air volume and the total air flow can be optimally designed.

A design method for an air conditioning system according to the tenth embodiment of the present invention is to select a fan equipped with an air volume adjusting means capable of adjusting the air volume. can be increased or decreased to adjust the air conditioning capacity in response to fluctuations in the air conditioning load for each room.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(Embodiment 1)
FIG. 1 is a first floor plan view of a building showing the configuration of an air conditioning system according to an embodiment of the present invention, and FIG. 2 is a second floor plan view of the same building.
As shown in FIG. 1, an entrance 2, a living room 3 and a kitchen 4 are arranged on the first floor of a building 1, and a toilet 5, a bathroom 6, a washing/dressing room 7 and the like are provided. The living room 3 is provided with a stairway 8 leading to the second floor. On the ceiling of the first floor of the building 1, outlet grills (intake units) 9a, 9b, 9c, and 9d for blowing air into the rooms on the first floor are provided. One ends of air ducts 10a, 10b, 10c and 10d for the first floor are connected to the blowout grills 9a, 9b, 9c and 9d, respectively. The other ends of the air ducts 10a, 10b, 10c, and 10d for the first floor are arranged on the second floor. The outlet grilles 9a, 9b, 9c, and 9d may be provided on the floor instead of the ceiling. When the blow-out grills 9a, 9b, 9c and 9d are provided on the floor, the air ducts 10a, 10b, 10c and 10d for the first floor are provided under the floor.

As shown in FIG. 2, on the second floor of the building 1, a staircase 12 comprising a stairway 8 and a corridor 11 from the first floor is arranged. A room A13, a room B14, and a room C15 on the second floor of the building 1 are arranged adjacent to the staircase 12. As shown in FIG. A closet A16 is provided in the room A13. A storage door B17 is provided in the room B14. The ceiling 62 of the second floor of the building 1 is provided with outlet grills (intake units) 18a, 18b, 18c, and 18d for blowing air into the rooms on the second floor. Blow-out grills (intake units) 18a and 18b are provided on the ceiling 62 of the room A13 on the second floor. The blow-out grill (intake part) 18c is provided on the ceiling 62 of the room B14 on the second floor. The blow-out grill (intake part) 18d is provided on the ceiling 62 of the room C15 on the second floor.
One ends of air ducts 19a, 19b, 19c, and 19d for the second floor are connected to the blowout grills (intake units) 18a, 18b, 18c, and 18d, respectively. The outlet grills 18a, 18b, 18c, and 18d may be provided on the floor instead of the ceiling 62. When the blow-out grilles 18a, 18b, 18c, and 18d are provided on the floor, the air ducts 19a, 19b, 19c, and 19d for the second floor are provided under the floor of the second floor.

3 is an enlarged plan view of the staircase on the second floor of the building of the air conditioning system in this embodiment, FIG. be.
As shown in FIGS. 3 to 5, the staircase 12 is located between the side wall 20 of the staircase 8, the wall A21 at the top of the staircase 8 from the first floor, and the rooms A13, B14, and C15 on the second floor. It is surrounded by a partition wall 22 and a wall B23 provided facing the wall A21. The distance between wall A21 and wall B23 is about 3.8 m, and the width of stairs 8 and corridor 11 is about 0.9 m. In addition, since the center dimension of the pillar in the architectural design drawing was used and the dimension was described without considering the thickness of the wall, "approximately" was added to the dimension. The same applies to the following dimensional indications.
A handrail 24 is attached to the stairs 8 side of the corridor 11. - 特許庁The handrail 24 is composed of horizontal beams 25 and vertical beams 26. - 特許庁A slit 27 is formed between the vertical beams 26 . A similar handrail 28 is attached to the first-floor space side of the stairs 8. - 特許庁

An air conditioner 30a is installed near the side wall 20 above the wall B23 of the staircase 12 . The air conditioner 30a is a wall-mounted indoor unit of a separate type air conditioner connected to an outdoor unit (not shown). The air conditioner 30a has a function of setting the air blowing volume of the indoor unit such as strong wind, medium wind, and weak wind as the air conditioning air volume. An upper surface 31 of the air conditioner 30a is provided with an inlet through which an intake airflow 32a is drawn. Further, an air outlet for blowing out an airflow 33a is provided at the lower front portion of the air conditioner 30a. A vertical wind direction control plate 34 is provided at the outlet. The vertical airflow direction control plate 34 is set so as to blow out the blowing airflow 33a in a substantially horizontal direction. Here, the substantially horizontal direction includes a downward direction within 15 degrees from the horizontal direction. A horizontal wind direction control plate (not shown) is provided at the outlet. The horizontal wind direction control plate is set so that the blowing airflow 33a is blown out substantially parallel to the side wall 20 toward the wall A21.

Fans 40a, 40b, 40c and 40d for the first floor and fans 41a, 41b, 41c and 41d for the second floor are attached to the wall B23. The first floor fans 40a, 40b, 40c and 40d and the second floor fans 41a, 41b, 41c and 41d are arranged below the air conditioner 30a. Four first-floor fans 40 and four second-floor fans 41 are installed. One first-floor fan duct 10 is connected to one first-floor fan 40, and one second-floor fan is connected. 41 is connected to one air duct 19 for the second floor.
A sirocco fan 42 is provided inside the first floor blower 40 and the second floor blower 41, sucks air from the staircase 12, and the sucked air is supplied to the first floor blower duct 10 and the second floor blower. The air flows through the duct 19 and blows out to each room in the building 1. - 特許庁An intake airflow 43 is generated by sucking air from the staircase 12 . The sucked air flows through the first-floor air duct 10 and the second-floor air duct 19 as an airflow 44 .
The blowers 40a, 40b, 40c and 40d for the first floor and the blowers 41a, 41b, 41c and 41d for the second floor are provided with air volume adjusting means. The air volume adjusting means is, for example, a notch changeover switch for changing the number of revolutions of the fan, or a shutter (not shown) for adjusting the opening area of the outlets of the outlet grilles 9a to 9d.

In each of the rooms A13, B14, and C15 on the second floor, an exhaust section 52 is provided near the ceiling 62 of the partition wall 22, which is higher than the air conditioner 30a, along with the lower gap 51 of the door 50 serving as the entrance from the staircase 12. ing. A second-floor discharge airflow 53 is formed in the lower gap 51 and the exhaust section 52 . Each room on the first floor is provided with an opening that communicates with the staircase 12 . This opening corresponds to the discharge part 55 to the staircase 12, and the first floor discharge airflow 56 is formed in this opening.
Therefore, the staircase 12 serves as a return section where air discharged from a plurality of rooms in the building 1 including the living room 3, the kitchen 4, the room A13, the room B14, and the room C15 joins. That is, the staircase 12 serving as the return section is adjacent to the living room 3, the kitchen 4, the room A13, the room B14, and the room C15.

The amount of air blown to each of the living room 3, the kitchen 4, the room A13, the room B14, and the room C15 is determined from the respective volumes of the living room 3, the kitchen 4, the room A13, the room B14, and the room C15 (air amount determination step ). Then, the total air blow amount (hereinafter referred to as total air blow amount: Vh) is calculated by summing the air blow amounts for each of the living room 3, kitchen 4, room A13, room B14, and room C15 determined in the air blow amount determination step (total blast volume calculation step). The blowing capacity and the number of fans for blowing air to each of the living room 3, the kitchen 4, the room A13, the room B14, and the room C15 are selected from the air blowing amount determined in the air blowing amount determination step. In addition, in the present embodiment, the blower duct constitutes a part of the blower. That is, the amount of air to be used for selecting the blower is the amount of air to be blown out from the blow-out grill (intake section) via the air-blowing duct. The amount of air blown required for air conditioning is at least 13 m ³ /h or more, ideally about 20 m ³ /h per 2.5 ^m 3 of a room, and is adjusted according to the size and load of the room. In this embodiment, since the room A13 is larger than the room B14, two blowing grills 18a and 18b are provided and air is blown by fans 41a and 41b. In addition, since the air blower is provided with air blowing adjusting means, it is easier to use if one or more air blowers are provided in one room.

The air conditioning capacity of the air conditioner 30a is determined by the air conditioning load calculation for the building 1 (air conditioning capacity determination step).
In other words, the air-conditioning load calculation is based on the heat transferred from walls, windows, ceilings, etc.; The amount of heat and moisture due to the draft is calculated as the air conditioning load (Haruo Yamada, "Refrigeration and Air Conditioning", Yokendo Co., Ltd., March 20, 1975, pp. 240-247). Then, the air conditioner 30a for the entire building 1 is selected from among the air conditioners lined up according to capacity, and the air conditioner 30a for the entire building 1 is air-conditioned.
The optimum air-conditioning air volume of the air conditioner 30a (hereinafter referred to as optimum air-conditioning air volume: Vq) is determined from the total air-blowing volume: Vh calculated in the total air-blowing volume calculation step (air-conditioning air volume determination step).
The optimum air-conditioning air volume: Vq is an air volume that is 50% or less of the total air-blowing volume: Vh, and is an air volume that is 70% or less at most, and is an air volume that allows the air conditioner 30a to demonstrate its ability to cope with the air-conditioning load.
The air conditioner 30a has the air conditioning capacity determined in the air conditioning capacity determination step, and selects a model capable of setting an air volume less than or equal to the optimal air conditioning air volume: Vq determined in the air conditioning air volume determination step.
When the total volume of the rooms to be air-conditioned is small, the minimum air-conditioning air volume that can be set by the air conditioner 30a may be larger than the optimum air-conditioning air volume: Vq determined in the air-conditioning air volume determination step. In this case, the total blowing volume: Vh of the blowers is increased so that the air volume of 70% or less of the total blowing volume: Vh can be set by the air conditioner 30a.
That is, in order to maintain the air-conditioning capacity of the air conditioner 30a, instead of reducing the air-conditioning air volume of the air conditioner 30a more than necessary, the minimum air-conditioning air volume that can be set by the air conditioner 30a is set to the total air volume: Vh. The amount of air blown into the building 1 is increased to 20 m ³ /h or more per 2.5 m ³ of a room so as to reduce it to 50% or less.
As a method to increase the amount of air blown into the building, it is possible not only to increase the amount of air blown to each room, but also to the underfloor space and attic space that are airtight and heat-insulated from the outside, so that air is blown from the underfloor space and attic space. It is also effective to provide an opening between the return compartment and circulate the conditioned air. Even if there are too many ventilation points in the building or the blowing volume of the blower is too large, the air conditioning load of the building itself does not fluctuate, so the air conditioning capacity is hardly affected.

In this embodiment, the building 1 has a floor area of about 97.7 m ² and a ceiling height of 2.5 m. 700 m ³ /h are blown by the cross-flow fan. Both the air blower 40 for the first floor and the air blower 41 for the second floor for blowing air to each room are set to have a blowing volume 2 per unit of about 150 m ³ /h at a medium notch. The total amount of air blown into the building 1 in the present embodiment: Vh is about 1200 m ³ /h, which is larger than the air-conditioning air amount of the air conditioner 30a. That is, in the present embodiment, the air volume of 58% of the total air volume Vh is designed as an air conditioning air volume (weak air mode) that can be set by the air conditioner 30a. Although not explained in the present embodiment, for example, if about 300 m ³ /h of air is added to the underfloor, the total air flow: Vh will be about 1500 m ³ /h. ³ /h is reduced to 46% of the total air flow rate: Vh.

In the above configuration, when the air conditioner 30a is operated by setting the temperature inside the building 1, the temperature of the intake airflow 32a is detected to perform cooling or heating air conditioning operation. The air that has been conditioned becomes a blowout airflow 33a of the air conditioner 30a, and is blown substantially horizontally and substantially parallel to the side wall 20 toward the wall A21. In addition, when the first floor fan 40 and the second floor fan 41 are operated, an intake airflow 43 and a blowout airflow 44 of the fans are generated.

The wind speed of the blowing airflow 33a of the air conditioner 30a is 3 to 5 m/s, and the wind speed of the intake airflow 43 of the blower (ventilation fan) is about 0.4m/s. is slower than the wind speed of the blowing airflow 33a. Furthermore, since the blowing airflow 33a of the air conditioner 30a is blown by the cross-flow fan, the airflow tends to reach a long distance, and it is difficult to be sucked in by the blower suction airflow 43 generated by the operation of the sirocco fan 42 sucking in the surrounding air. . Therefore, most of the blowing airflow 33a of the air conditioner 30a reaches the vicinity of the wall A21 while diffusing, reverses and returns along the stairs 8 toward the wall B23, and joins the suction airflow 43 of the blower with a large amount of blowing air. are mixed. Therefore, if the suction ports of the first-floor fan 40 and the second-floor fan 41 are provided while avoiding the blowing direction of the blowing airflow 33a from the air conditioner 30a, the air conditioning circulating airflow circulates and diffuses substantially within the staircase 12. 45 is formed and short-circuiting is less likely to occur.
Since the specific gravity of the blown airflow 33a during heating is lighter than that during cooling, the specific gravity of the blown airflow 33a tends to rise. It is desirable that the direction of the blowing airflow 33a be downward.

When the air is blown into multiple rooms of building 1, some from the rooms A13, B14, and C15 on the second floor will be discharged as the second floor exhaust airflow 53, and each room on the first floor will be discharged as the first floor exhaust airflow 56. Return to room 12. At this time, since the exhaust part 52 is open near the ceiling 62, most of the discharged airflow 53 on the second floor forms an air conditioning return airflow 57 that flows along the ceiling 62 toward the air conditioner 30a. It merges with the intake airflow 32a. Therefore, the air conditioner 30a is operated and controlled by detecting an air temperature close to the temperature of each room. The exhaust part 52 may be installed anywhere as long as it is connected to the staircase 12, but it is better to install it near the ceiling 62 of the staircase 12 and close to the air conditioner 30a so that more exhaust airflow 53 can flow to the air conditioner 30a. Since the temperature of the intake airflow 32a is close to the room temperature, the difference between the set temperature when the air conditioner 30a is operated and the actual temperature inside the building 1 is controlled to be small.

The air-conditioning circulating airflow 45 flows in opposition to the exhaust airflow 53 and the intake airflow 43 until it is reversed, and diffuses by involving the surrounding air. Therefore, as it flows, the temperature of the air conditioning circulation airflow 45 rises above the temperature of the blown airflow 33a of the air conditioner 30a during cooling, and falls below the temperature of the blown airflow 33a during heating.
The air conditioning circulating airflow 45 is mainly formed on the stairs 8 side of the staircase 12 , and the air conditioning return airflow 57 is mainly formed on the second floor corridor 11 side of the staircase 12 . Furthermore, since the amount of air blown into the rooms of the building 1 is larger than the amount of air-conditioned air, in the staircase 12, the blown airflow 33a of the air conditioner 30a, the exhaust airflow 56 of the first floor, and the exhaust airflow 53 of the second floor are mixed. be. By mixing, the temperature difference between the air conditioning circulating airflow 45 and each room is further reduced.
Air flows through slits 27 in handrail 24 or handrail 28 to aid in this mixing. Part of the exhaust airflow 56 on the first floor also joins the air conditioning return airflow 57 from the boundary between the stairs 8 and the corridor 11 . Also, in order to make it easier for air currents from the first floor to join the corridor 11, a ventilation slit may be provided (not shown) that communicates between the first and second floors of the building 1 .

In the air conditioning system of the present embodiment, the temperature difference between the temperature of the blown airflow 44 blown into each room and the room temperature of each room is smaller than the temperature difference between the temperature of the blown airflow 33a of the air conditioner 30a and each room. People in the room are less likely to feel stress due to the difference in temperature between the blown airflow 44 and the room temperature, so comfort is enhanced.
The air conditioner, which controls the rotation speed of the compressor with an inverter, is operated so that the difference between the blowing temperature and the room temperature is small when the indoor air flow rate is constant and the air conditioning load is small. Therefore, when the compressor of the air conditioner 30a is an inverter type, comfort is not impaired even if the amount of air blown into the room is reduced when the air conditioning load is small, such as in the middle of the season other than summer and winter. It does not matter if Vh is reduced and the air-conditioning air volume becomes 70% or more of the total air blow volume: Vh.

The air conditioner 30a, the air blower 40 for the 1st floor, and the air blower 41 for the 2nd floor need not all be installed on the wall B23. A part of the blower can be provided in the first floor part of the staircase 12 or can be provided in the partition wall 22. - 特許庁
The direction of the blowout airflow 33a can be adjusted by the horizontal wind direction control plate of the air conditioner 30a to form an air conditioning circulating airflow 45 that joins the intake airflow 43 of the blower. 57 air passages may be formed, and the air conditioner 30 a may be provided in the partition wall 22 . The air conditioning circulating airflow 45 should be formed in the long side direction of the rectangular return section when viewed from above.
The air conditioners 30a may be provided on the wall B23 and the partition wall 22, respectively, and a heat source for heating such as a hot water radiator may be provided in addition to the air conditioners 30a. The air currents blown out from the two devices join together to circulate in the staircase 12 and be sucked into the 1st floor fan 40 and the 2nd floor fan 41. For example, solar heat can be used to generate hot water as a heat source. This design and construction method can also be applied to air conditioning systems that have
In the air-conditioning system of the present embodiment, the total amount of air blown to each room: Vh is greater than the air-conditioning air amount. It is sufficiently mixed with the air blown from the air conditioner 30a in the return section, air-conditioned, and returned to each room.
By adjusting the air volume with the air volume adjusting means of the air blower, it is possible to cope with fluctuations in the air-conditioning load of the room for each individual air blower.

The volume of the staircase room 12 is about 16.2 m ³ , and the air conditioner 30a forms the air-conditioning circulating airflow 45 for air conditioning, so it is not necessary to provide a dedicated air conditioner room. If the air conditioning circulation airflow 45 is formed, the volume of the return compartment may be smaller than this, but the volume of a normal staircase is sufficient for the volume of the return compartment, and the air conditioner 30a and the first floor blower are sufficient. 40, the air blower 41 for the 2nd floor, the exhaust part 52, and the discharge part 55 are easy to configure.
(Embodiment 2)

FIG. 6 is a plan view of a building showing the configuration of an air-conditioning system according to Embodiment 2 of the present invention, and FIG. 7 is a cross-sectional view of a corridor portion of the building taken along line CC.
As shown in FIGS. 6 and 7, a building 61 is a one-story building having an entrance 2, and has a living room 3, a kitchen 4, a toilet 5, a bathroom 6, and a washroom/dressing room 7. FIG. Also, in the building 61, a room A63 and a room B64 are arranged. A storage door A65 is provided in the room A63. A room A 63 , a room B 64 and a living room 3 in the building 61 are connected by a corridor 66 .
The ceiling 62 or the floor 63 of each of the rooms A63 and B64 is provided with blowout grills (intake units) 68a, 68b, 68c, 68d, 68e, and 68f for blowing air into the room. One ends of air ducts 63a, 63b, 64c, 64d, 64e, and 63f are connected to the blowout grills 68a, 68b, 68c, 68d, 68e, and 68f, respectively. Fan ducts 63a, 63b and 63f are arranged on the ceiling 62 as a ceiling fan duct 82, and fan ducts 64c, 64d and 64e are arranged under the floor as an underfloor fan duct 83.
A corridor 66 includes a ceiling 62, a floor 63, an entrance wall 71 to which an entrance door 70 is attached, a partition wall A72 from the living room 3, a partition wall B73 from the kitchen 4, a partition wall C74 from the toilet 5, and a wall D75 to which the air conditioner 30b is attached. , a partition wall E76 with the room A63, and a partition wall F77 with the room B64.

Above the wall D75 of the corridor 66, an air conditioner 30b is installed near the partition wall E76. The air conditioner 30b is a wall-mounted indoor unit of a separate type air conditioner connected to an outdoor unit (not shown). An intake port through which the intake airflow 32a is sucked is provided on the upper surface of the air conditioner 30b. In addition, a blowout port for blowing out the blowing airflow 33b is provided in the front lower portion of the air conditioner 30b. A vertical wind direction control plate 34 is provided at the outlet. The vertical airflow direction control plate 34 is set so as to blow out the blowing airflow 33b in a substantially horizontal direction. A horizontal wind direction control plate (not shown) is provided at the outlet. The horizontal wind direction control plate is set so that the blowing airflow 33b is blown toward the entrance wall 71 substantially parallel to the partition wall E76.

The ceiling fan 80 and the underfloor fan 81 are arranged below the air conditioner 30b. Three ceiling fans 80 and three underfloor fans 81 are installed. One ceiling blower 80 is connected to one ceiling blower duct 82 , and one underfloor blower 81 is connected to one underfloor blower duct 83 . A sirocco fan (not shown) is provided inside the ceiling blower 80 and the underfloor blower 81 , sucking air from the corridor 66 , and the sucked air flows into the ceiling duct 82 and the underfloor duct 83 . and blows out to each room A 63 , room B 64 , living room 3 and kitchen 4 in building 61 . An intake airflow 43 is generated by sucking air from the corridor 66 . The sucked air flows through the ceiling air duct 82 and the underfloor air duct 83 as the blown airflow 44 .
The ceiling blower 80 and the underfloor blower 81 are provided with air volume adjusting means. The air volume adjusting means is, for example, a notch changeover switch for changing the rotation speed of the fan and a shutter (not shown) for adjusting the opening area of the outlet of the outlet grilles 68a to 68f.

The ceiling fan 80 and the underfloor fan 81 are provided on a partition wall G84 parallel to the wall D75. In other words, the space between the wall D75 and the partition wall G84 is the air blowing partition 85, and the air blowing opening 86 communicating with the air blowing partition 85 from the corridor 66 is formed below the wall D75. Since this air blowing opening 86 substantially corresponds to the air suction part of the ceiling fan 80 and the underfloor fan 81 from the corridor 66, with such a configuration, the ceiling fan 80 and the underfloor fan 80 can be arranged below the air conditioner 30b. The air blower 81 may not be provided. Also, a sound absorbing material is provided on the inner wall of the air-blowing compartment 85 .

An exhaust part 52 is provided near the ceiling 62 of the partition wall E76 and the partition wall F77, which is higher than the air conditioner 30b, along with the lower gap 88 of the door 87 serving as the entrance from the corridor 66 to the room A63 and the room B64. An exhaust airflow 89 is formed in the lower gap 88 and the exhaust portion 52 . An opening that communicates with the living room 3 corresponds to an exhaust section 90 to the corridor 66, and an exhaust airflow 91 from the living room 3 is formed at this opening.
Therefore, the corridor 66 becomes a return section where the air discharged from the living room 3, the kitchen 4, the room A63, and the room B64 joins. A corridor 66 serving as a return section is adjacent to the living room 3, kitchen 4, room A63, and room B64.

The amount of air blown to each of living room 3, kitchen 4, room A63, and room B64 is determined from the respective volumes of living room 3, kitchen 4, room A63, and room B64 (air amount determination step). Then, the total amount of air blown to the living room 3, the kitchen 4, the room A63, and the room B64 determined in the air amount determination step is added to calculate a total air amount: Vh (total air amount calculation step). From the air blowing amount determined in the air blowing amount determination step, the air blowing capacity and the number of air blowers for blowing air to each of the living room 3, the kitchen 4, the room A63, and the room B64 are selected. In addition, in the present embodiment, the blower duct constitutes a part of the blower. That is, the amount of air blowing used for selecting the blower is the amount of air blowing out from the blow-out grill (intake portion) via the duct. Airflow required for air conditioning is at least 13m ³ /h or more per 2.5m ³ room, ideally about 20m ³ /h. In the case of a large space, two or more blowers may be installed, that is, two or more outlet grills may be installed.

The air conditioning capacity of the air conditioner 30b is determined by air conditioning load calculation for the building 61 (air conditioning capacity determination step).
The optimum air-conditioning air volume: Vq of the air conditioner 30b is determined from the total air-blowing volume: Vh calculated in the total air-blowing volume calculation step (air-conditioning air volume determination step).
The air conditioner 30b has the air conditioning capacity determined in the air conditioning capacity determination step, and selects a model capable of setting an air volume equal to or less than the optimal air conditioning air volume Vq determined in the air conditioning air volume determination step.
When the total volume of rooms to be air-conditioned is small, the minimum air-conditioning air volume that can be set by the air conditioner 30b may be larger than the optimum air-conditioning air volume: Vq determined in the air-conditioning air volume determination step. In this case, the total blowing volume: Vh of the blower is increased so that the air volume of 70% or less of the total blowing volume: Vh can be set by the air conditioner 30b.
That is, in order to maintain the air-conditioning capacity of the air conditioner 30b, the air-conditioning air volume of the air conditioner 30b is not lowered more than necessary, but the minimum air-conditioning air volume that can be set by the air conditioner 30b is set to 50% or less of the total air blow volume: Vh. This is dealt with by increasing the amount of air blown into the building 61 to 20 m ³ /h or more per ^2.53 rooms. Even if the amount of air blown by the blower is too large, it does not affect the air conditioning capacity.

In the highly airtight and highly insulated house of the present embodiment, the building 61 has a floor area of about 79.3 m ² and a ceiling height of 2.5 m, and is equipped with an air conditioner 30b having a cooling capacity equivalent to 3.6 kW. , 510 m ³ /h is blown by the cross-flow fan during the cooling operation in the weak wind mode. Both the ceiling blower 80 and the underfloor blower 81 for blowing air into each room are set to have a blowing volume of about 150 m ³ /h at a medium notch. The total amount of air blown into the building 61 in the present embodiment: Vh is about 900 m ³ /h, which is larger than the air-conditioning air amount of the air conditioner 30b.
That is, in the present embodiment, the air volume of 57% of the total air volume Vh is designed as an air conditioning air volume (weak air mode) that can be set by the air conditioner 30b.

In the above configuration, when the air conditioning temperature of the air conditioner 30b is set and operated, the temperature of the intake air flow 32a is detected and the air conditioning operation for cooling or heating is performed. The conditioned air becomes the blowing airflow 33b of the air conditioner 30b and blows out toward the entrance wall 71 substantially horizontally and substantially parallel to the partition wall E76. In addition, the ceiling fan 80 and the underfloor fan 81 are operated to generate an intake airflow 43 and a blowout airflow 44 of the fans.
In this embodiment, the ceiling fan 80 and the underfloor fan 81 are installed at the back of the blower compartment 85, and the sound absorbing material is provided in the fan compartment 85, so that the ceiling fan 80 and the underfloor fan The operating sound of the blower 81 is less likely to leak into the corridor 66. - 特許庁The air ducts 63a, 63b, 63f and the air ducts 64c, 64d, 64e also use sound absorbing ducts.

The wind speed of the blowing airflow 33b of the air conditioner 30b is 3 to 5 m/s, and the wind speed of the intake airflow 43 of the blower (ventilation fan) is about 0.4m/s. is slower than the wind speed of the blowing airflow 33b.
Therefore, most of the blown airflow 33b of the air conditioner 30b reaches the vicinity of the entrance wall 71, reverses and returns along the floor 63 toward the wall D75, and joins the intake airflow 43 of the blower. Therefore, if the blowing opening 86 is provided to avoid the blowing direction of the blowing airflow 33b from the air conditioner 30b, the air conditioning circulating airflow 92 is formed in the corridor 66, and the short circuit is less likely to occur.
Depending on the distance between the air conditioner 30b and the entrance wall 71 and the setting of the air-conditioning air volume of the air conditioner 30b, most of the discharged airflow 33b diffuses without reaching the entrance wall 71, and joins the intake airflow 43 of the blower. The air-conditioning circulating airflow 92 may also be formed by

When the air is blown to the room A63, the room B64, the living room 3, and the kitchen 4 of the building 61, it returns to the corridor 66 as the exhaust airflow 89 and the exhaust airflow 91. At this time, since the exhaust part 52 opens near the ceiling 62, most of the exhaust airflow 89 forms an air conditioning return airflow 93 that flows along the ceiling 62 toward the air conditioner 30b, and the intake airflow 32a of the air conditioner 30b. join the Part of the air-conditioning return airflow 93 is also formed by the exhaust airflow 91 flowing from the living room 3 near the ceiling 62 . The air conditioner 30b detects air temperatures close to those of the room A63, the room B64, and the living room 3, and is controlled to operate.

The air-conditioning circulating airflow 92 flows in opposition to the exhaust airflow 89 and the air-conditioning return airflow 93 until it is reversed, and diffuses by involving the surrounding air. Therefore, as the flow distance increases, the temperature of the air conditioning circulation airflow 92 rises above the temperature of the blown airflow 33b of the air conditioner 30b during cooling, and falls below the temperature of the blown airflow 33b during heating.
The difference between the temperature of the blown airflow 44 blown into the room A63, the room B64, and the living room 3 by mixing the blown airflow 33b of the air conditioner 30b with the surrounding air, and the room temperature of the room A63, the room B64, and the living room 3 is Since the difference between the temperature of the blown airflow 33b of the air conditioner 30b and the room temperature of the room A63, the room B64, and the room temperature of the living room 3 is smaller than that, people in the room are less likely to feel stress due to the temperature difference of the blown airflow 44, resulting in comfort. increases.

In addition, when the entrance door 70 is opened from the outside of the building 61 and the room is entered, the temperature is lower than the room A63, the room B64, and the living room 3 during cooling, and the temperature is lower than the room A63, room B64, and the living room 3 during heating. Since the air conditioning circulating airflow 92 with a high temperature is exposed to the air, the heat and cold felt outside can be relieved at the entrance 2, and the outside air entering from the entrance door 70 is directly into the room A63, the room B64, and the living room 3. It can also prevent intrusions.

In addition, in a highly airtight and highly insulated house, etc., a heat exchange ventilator is installed for constant ventilation. Then, it is sent to rooms A63 and B64, and when the entrance door 70 is opened, the outdoor air blown out from the heat exchange ventilator has a high static pressure and easily flows out of the room through the opening of the entrance door 70, so that the outside air enters. can be less.

If the building is large, the inside of the building can be divided into zones, and the first embodiment and the second embodiment can be used in combination.
Both Embodiment 1 and Embodiment 2 utilize the movement space of people in the building. Since these spaces are not places where residents stay for a long time, the equipment can be arranged so that the performance of air conditioners and fans can be easily exhibited, and the operation noise of these equipments is a place where the residents are less likely to be affected. In addition, it is easy to store the blower.
Furthermore, since the air conditioner 30a is installed above the corridor 11 of the staircase 12 and blows air in a substantially horizontal direction, people coming and going in the staircase 12 do not directly hit the blown airflow 33a.

It is possible to easily air-condition the entire room by using staircases, corridors, and other spaces in which residents move. It can also be applied to the air conditioning of buildings such as facilities and hospitals.

1 Building 12 Staircase 9a, 9b, 9c, 9d Blow-out grille (intake part)
18a, 18b, 18c, 18d Blow-out grill (intake part)
30a Air conditioner 33 Blowing airflow of air conditioner 41a, 41b, 41c, 41d 2nd floor fan 40a, 40b, 40c, 40d 1st floor fan 52 Exhaust unit 55 Exhaust unit 61 Building 66 Corridor 68a, 68b, 68c, 68d, 68e , 68f Blow-out grille 30b Air conditioner 80 Ceiling fan 81 Underfloor fan 90 Exhaust unit

The present invention relates to a construction method for an air-conditioning system that air-conditions a plurality of rooms in a building with one air-conditioner and a blower.

Conventionally, this type of air conditioning system is known to provide an air conditioner room inside a building, adjust the temperature of the air sucked into the air conditioner room with an air conditioner, and blow the air to a plurality of rooms with a fan (for example, , see Patent Document 1).
The air conditioning system will be described below with reference to FIG.
As shown in FIG. 8, an air conditioner room 101 is installed in the attic of a building. It is divided into two rooms, 133 and dispersion room 200.
One side wall 111 of the mixing section 133, which is one room of the air conditioner room 101, is provided with an attic air suction port 400 and an outside air introduction port 311 as external air suction ports. 116. An air conditioner 102 is installed on one side wall 111 . The louver 115 communicates with the space in the house in order to return the air blown into the house from the air conditioner room 101 to the air conditioner room 101 again.
A distribution room 200 that is the other room of the air conditioner room 101 is provided with a grid-shaped supply air blower mounting wall 144 that is parallel to the hanging wall 106 . The supply air blower 104 is attached to the supply air blower mounting wall 144 . The side opposite to the hanging wall 106 with respect to the supply air blower mounting wall 144, that is, between the supply air blower mounting wall 144 and the wall surface 112b, is connected to the supply air blower 104 and arranged in each room in the room. The wall surface 112b and the floor surface 116 of the air conditioner room 101 are provided with through-holes (not shown) through which the air supply ducts pass, corresponding to the number of living rooms to be air-conditioned. formed.
The supply air blower 104 is driven by a DC motor, and the air in the air conditioner room 101 is sucked from the air intake port 141, which is the fan air intake port of the supply air blower 104, and blown to a plurality of rooms in the house. Air circulates between the air conditioner room 101 and the room. Air from the air conditioner flows out to the mixing section 133 by driving the air conditioner 102 . By driving the supply air blower 104 , the air from the attic flows out from the attic air suction port 400 to the air conditioner room 101 , and the outside air flows out to the air conditioner room 101 from the outside air introduction port 311 . In this way, multiple rooms in the house are air-conditioned using one air conditioner 102 and multiple supply air blowers 104 .

JP 2012-57880 A

In such a conventional air conditioning system, it is necessary to provide an air conditioner room as a dedicated room in order to install the air conditioner. In addition, it is necessary to provide a mixing unit in the air conditioning room in order to mix the air drawn into the air conditioner room, that is, the intake air flow, and the air that is blown out of the air conditioner, that is, the air flow. In order to prevent short circuit, which is a phenomenon in which air circulates in a narrow area due to the air conditioner, exhaust port, and air supply port being too close to each other, the installation positions of the air conditioner, exhaust port, and air supply port are adjusted. It is necessary to devise ways to separate them as much as possible. Thus, the air conditioner room requires a certain amount of volume, and construction is not easy.

The present invention solves such conventional problems, does not require a room for installing an air conditioner, can be easily arranged apart from the air conditioner, the exhaust port, and the air supply port, and can be easily separated from the air conditioner. To provide a construction method for an air-conditioning system in which short-circuiting of blowing air current is unlikely to occur.

In order to achieve the above object, the construction method of the air conditioning system of the present invention forms a return section adjacent to a plurality of rooms in the building, and the rooms are provided with an intake section for blowing air sent from the blower. The room (1) is provided with an exhaust section that opens to the return section, and the return section is provided with a plurality of blowers and at least one air conditioner.
By this means, it is possible to obtain an air conditioning system in which a plurality of rooms can be air-conditioned by the air conditioner installed in the return section, and it is unnecessary to provide a dedicated air conditioner room for installing the air conditioner.
Another means is to use staircases or corridors within the building as return compartments.
As a result, since the return section has a certain volume for installing the air conditioner, it is possible to obtain an air conditioning system in which the air conditioner, the exhaust port, and the intake port can be easily arranged separately in the return section.
Another means is to provide the suction port of the blower so as to avoid the blowing direction of the blowing airflow from the air conditioner.
As a result, it is possible to obtain an air conditioning system in which short-circuiting of the airflow from the air conditioner is unlikely to occur.
Another means is to install a blower below an outlet for the airflow from the air conditioner, and set the direction of the airflow from the air conditioner to be substantially horizontal.
As a result, it is possible to obtain an air conditioning system in which the air blown from the air conditioner is less likely to short-circuit.
Another means is to provide at least one exhaust section above the air conditioner.
As a result, it is possible to obtain an air conditioning system in which short-circuiting of the airflow from the air conditioner is unlikely to occur.
Another means is to increase the total amount of blown air from a plurality of blowers to be greater than the amount of air-conditioned air from the air conditioner.
As a result, an air conditioning system that does not require a dedicated air conditioner room and can be easily arranged in the return section with the air conditioner, the exhaust port, and the air intake port separated from each other can be obtained.
In order to achieve the above object, the air conditioning system design method of the present invention comprises an air conditioning capacity determination step of determining the air conditioning capacity of the air conditioner by calculating the air conditioning load for the building; A blast volume determination step for determining the blast volume to be used, a total blast volume calculation step for calculating the total blast volume by summing the blast volumes for each room determined in the blast volume determination step, and a total blast volume calculation step for determining the total blast volume an air conditioning air volume determination step of determining the optimum air conditioning air volume of the air conditioner from the total air volume; selecting a fan for blowing air to each room from the air volume determined in the air volume determining step; An air conditioner having the determined air conditioning capacity and capable of setting an air volume equal to or less than the optimum air conditioning air volume determined in the air conditioning air volume determination step is selected.
By this means, the building has a plurality of rooms and a return section, each room is provided with an intake section for blowing air sent from the blower, and the room is provided with an exhaust airflow from the room toward the return section. A plurality of fans and at least one air conditioner are installed in the return section, the air in the return section is guided from the intake section to the room, and the air in the room is returned from the exhaust section. The fans and air conditioners used in the air conditioning system leading to the compartment can be optimally selected.
Another means is that when an air conditioner having the air conditioning capacity determined in the air conditioning capacity determination step cannot set an air volume less than or equal to the optimum air volume determined in the air volume determination step, the air volume can be set by the air conditioner. The blowers are selected so that the minimum air-conditioning air volume is 70% or less of the total air-blowing volume.
By this means, the building has a plurality of rooms and a return section, each room is provided with an intake section for blowing air sent from the blower, and the room is provided with an exhaust airflow from the room toward the return section. A plurality of fans and at least one air conditioner are installed in the return section, the air in the return section is guided from the intake section to the room, and the air in the room is returned from the exhaust section. In the selection of fans and air conditioners used in the air conditioning system leading to the compartment, the air conditioning air volume and the total air volume can be optimally designed, especially when the total air volume required by the blower is small due to the small total volume of the room. .
Another means is to select a blower provided with an air volume adjusting means capable of adjusting the air volume.
With this means, after the construction of the air conditioning system, the air volume adjusting means can be used to increase or decrease the air volume to adjust the air conditioning capacity in response to the fluctuation of the air conditioning load for each room.

According to the present invention, there is no need to provide an air conditioner room, construction can be easily performed, the air conditioner, the exhaust port, and the air intake port can be easily arranged, and the air conditioning system can be easily constructed. can provide.
In addition, the airflow from the air conditioner is less prone to short-circuiting, is diffused and mixed, and can supply conditioned air with uniform temperature and humidity to multiple rooms. can provide

1 floor plan view of a building showing the configuration of an air conditioning system according to Embodiment 1 of the present invention 2nd floor plan of the same building Enlarged plan view of the staircase on the second floor of the same building AA sectional view of the second floor staircase part of the same building BB sectional view of the second floor staircase part of the same building A plan view of a building showing the configuration of an air conditioning system according to Embodiment 2 of the present invention. CC sectional view of the corridor part of the same building Perspective view showing an air conditioning room of a conventional air conditioning system

In the construction method of the air conditioning system according to the first embodiment of the present invention, the building forms a return section adjacent to a plurality of rooms, the room is provided with an intake section for blowing air sent from the blower, and each The room is provided with an exhaust section that opens to the return section, and the return section is equipped with a plurality of fans and at least one air conditioner. Air discharged from a plurality of rooms inside the building is air-conditioned by adjusting the temperature and humidity in the return section and blowing the air to a plurality of rooms in the building with a blower.

In the construction method of the air conditioning system according to the second and third embodiments of the present invention, the staircases and corridors in the building are used as the return section, and the air conditioning in the building can be performed in the return section. , there is no need to provide a dedicated air conditioner room, and a certain amount of volume for installing the air conditioner can be secured.

In the construction method of the air conditioning system according to the fourth embodiment of the present invention, the suction port of the blower is provided so as to avoid the blowing direction of the airflow from the air conditioner, and the airflow from the air conditioner directly flows into the blower. It is not easily sucked into the air, does not easily short-circuit, and can be diffused and mixed in the return compartment.

A method for constructing an air conditioning system according to a fifth embodiment of the present invention is to install a blower below an air outlet for airflow from an air conditioner, and set the direction of airflow from the air conditioner to be substantially horizontal. , the air blown from the air conditioner is not directly sucked into the blower, is less likely to short-circuit, and can be diffused and mixed in the return section.

In the construction method of the air conditioning system according to the sixth embodiment of the present invention, at least one or more exhaust units are provided above the air conditioner, and the air exhausted from the building is sucked into the air conditioner. , the operation control of the air conditioner can be performed by detecting a temperature close to the room temperature.

In the construction method of the air-conditioning system according to the seventh embodiment of the present invention, the total amount of air blown by the plurality of fans is made larger than the air-conditioning air amount of the air conditioner, and the air-conditioning air amount more than the air-conditioning air amount of the air conditioner is sent to the return section. Since the air volume is exhausted from and inflowed from the rooms in the building, a short circuit is less likely to occur, and the air blown from the air conditioner and the inflow air from the rooms can be mixed in the return section.

An air-conditioning system design method according to an eighth embodiment of the present invention includes an air-conditioning capacity determination step of determining the air-conditioning capacity of an air conditioner by calculating an air-conditioning load for a building; A blast volume determination step for determining the blast volume to be used, a total blast volume calculation step for calculating the total blast volume by summing the blast volumes for each room determined in the blast volume determination step, and a total blast volume calculation step for determining the total blast volume an air conditioning air volume determination step of determining the optimum air conditioning air volume of the air conditioner from the total air volume; selecting a fan for blowing air to each room from the air volume determined in the air volume determining step; An air conditioner having the determined air conditioning capacity and capable of setting an air volume equal to or less than the optimum air volume determined in the air volume determination step is selected, and the blower and the air conditioner can be optimally selected.

In the air conditioning system design method according to the ninth embodiment of the present invention, the air conditioner having the air conditioning capacity determined in the air conditioning capacity determining step sets the air volume to an air volume equal to or less than the optimum air conditioning air volume determined in the air conditioning air volume determining step. If this is not possible, the blower should be selected so that the minimum airflow volume that can be set by the air conditioner is 70% or less of the total airflow volume. is small, the air conditioning air volume and the total air flow can be optimally designed.

A design method for an air conditioning system according to the tenth embodiment of the present invention is to select a fan equipped with an air volume adjusting means capable of adjusting the air volume. can be increased or decreased to adjust the air conditioning capacity in response to fluctuations in the air conditioning load for each room.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(Embodiment 1)
FIG. 1 is a first floor plan view of a building showing the configuration of an air conditioning system according to an embodiment of the present invention, and FIG. 2 is a second floor plan view of the same building.
As shown in FIG. 1, an entrance 2, a living room 3 and a kitchen 4 are arranged on the first floor of a building 1, and a toilet 5, a bathroom 6, a washing/dressing room 7 and the like are provided. The living room 3 is provided with a stairway 8 leading to the second floor. On the ceiling of the first floor of the building 1, outlet grills (intake units) 9a, 9b, 9c, and 9d for blowing air into the rooms on the first floor are provided. One ends of air ducts 10a, 10b, 10c and 10d for the first floor are connected to the blowout grills 9a, 9b, 9c and 9d, respectively. The other ends of the air ducts 10a, 10b, 10c, and 10d for the first floor are arranged on the second floor. The outlet grilles 9a, 9b, 9c, and 9d may be provided on the floor instead of the ceiling. When the blow-out grills 9a, 9b, 9c and 9d are provided on the floor, the air ducts 10a, 10b, 10c and 10d for the first floor are provided under the floor.

As shown in FIG. 2, on the second floor of the building 1, a staircase 12 comprising a stairway 8 and a corridor 11 from the first floor is arranged. A room A13, a room B14, and a room C15 on the second floor of the building 1 are arranged adjacent to the staircase 12. As shown in FIG. A closet A16 is provided in the room A13. A storage door B17 is provided in the room B14. The ceiling 62 of the second floor of the building 1 is provided with outlet grills (intake units) 18a, 18b, 18c, and 18d for blowing air into the rooms on the second floor. Blow-out grills (intake units) 18a and 18b are provided on the ceiling 62 of the room A13 on the second floor. The blow-out grill (intake part) 18c is provided on the ceiling 62 of the room B14 on the second floor. The blow-out grill (intake part) 18d is provided on the ceiling 62 of the room C15 on the second floor.
One ends of air ducts 19a, 19b, 19c, and 19d for the second floor are connected to the blowout grills (intake units) 18a, 18b, 18c, and 18d, respectively. The outlet grills 18a, 18b, 18c, and 18d may be provided on the floor instead of the ceiling 62. When the blow-out grilles 18a, 18b, 18c, and 18d are provided on the floor, the air ducts 19a, 19b, 19c, and 19d for the second floor are provided under the floor of the second floor.

3 is an enlarged plan view of the staircase on the second floor of the building of the air conditioning system in this embodiment, FIG. be.
As shown in FIGS. 3 to 5, the staircase 12 is located between the side wall 20 of the staircase 8, the wall A21 at the top of the staircase 8 from the first floor, and the rooms A13, B14, and C15 on the second floor. It is surrounded by a partition wall 22 and a wall B23 provided facing the wall A21. The distance between wall A21 and wall B23 is about 3.8 m, and the width of stairs 8 and corridor 11 is about 0.9 m. In addition, since the center dimension of the pillar in the architectural design drawing was used and the dimension was described without considering the thickness of the wall, "approximately" was added to the dimension. The same applies to the following dimensional indications.
A handrail 24 is attached to the stairs 8 side of the corridor 11. - 特許庁The handrail 24 is composed of horizontal beams 25 and vertical beams 26. - 特許庁A slit 27 is formed between the vertical beams 26 . A similar handrail 28 is attached to the first-floor space side of the stairs 8. - 特許庁

An air conditioner 30a is installed near the side wall 20 above the wall B23 of the staircase 12 . The air conditioner 30a is a wall-mounted indoor unit of a separate type air conditioner connected to an outdoor unit (not shown). The air conditioner 30a has a function of setting the air blowing volume of the indoor unit such as strong wind, medium wind, and weak wind as the air conditioning air volume. An upper surface 31 of the air conditioner 30a is provided with an inlet through which an intake airflow 32a is drawn. Further, an air outlet for blowing out an airflow 33a is provided at the lower front portion of the air conditioner 30a. A vertical wind direction control plate 34 is provided at the outlet. The vertical airflow direction control plate 34 is set so as to blow out the blowing airflow 33a in a substantially horizontal direction. Here, the substantially horizontal direction includes a downward direction within 15 degrees from the horizontal direction. A horizontal wind direction control plate (not shown) is provided at the outlet. The horizontal wind direction control plate is set so that the blowing airflow 33a is blown out substantially parallel to the side wall 20 toward the wall A21.

Fans 40a, 40b, 40c and 40d for the first floor and fans 41a, 41b, 41c and 41d for the second floor are attached to the wall B23. The first floor fans 40a, 40b, 40c and 40d and the second floor fans 41a, 41b, 41c and 41d are arranged below the air conditioner 30a. Four first-floor fans 40 and four second-floor fans 41 are installed. One first-floor fan duct 10 is connected to one first-floor fan 40, and one second-floor fan is connected. 41 is connected to one air duct 19 for the second floor.
A sirocco fan 42 is provided inside the first floor blower 40 and the second floor blower 41, sucks air from the staircase 12, and the sucked air is supplied to the first floor blower duct 10 and the second floor blower. The air flows through the duct 19 and blows out to each room in the building 1. - 特許庁An intake airflow 43 is generated by sucking air from the staircase 12 . The sucked air flows through the first-floor air duct 10 and the second-floor air duct 19 as an airflow 44 .
The blowers 40a, 40b, 40c and 40d for the first floor and the blowers 41a, 41b, 41c and 41d for the second floor are provided with air volume adjusting means. The air volume adjusting means is, for example, a notch changeover switch for changing the number of revolutions of the fan, or a shutter (not shown) for adjusting the opening area of the outlets of the outlet grilles 9a to 9d.

In each of the rooms A13, B14, and C15 on the second floor, an exhaust section 52 is provided near the ceiling 62 of the partition wall 22, which is higher than the air conditioner 30a, along with the lower gap 51 of the door 50 serving as the entrance from the staircase 12. ing. A second-floor discharge airflow 53 is formed in the lower gap 51 and the exhaust section 52 . Each room on the first floor is provided with an opening that communicates with the staircase 12 . This opening corresponds to the discharge part 55 to the staircase 12, and the first floor discharge airflow 56 is formed in this opening.
Therefore, the staircase 12 serves as a return section where air discharged from a plurality of rooms in the building 1 including the living room 3, the kitchen 4, the room A13, the room B14, and the room C15 joins. That is, the staircase 12 serving as the return section is adjacent to the living room 3, the kitchen 4, the room A13, the room B14, and the room C15.

The amount of air blown to each of the living room 3, the kitchen 4, the room A13, the room B14, and the room C15 is determined from the respective volumes of the living room 3, the kitchen 4, the room A13, the room B14, and the room C15 (air amount determination step ). Then, the total air blow amount (hereinafter referred to as total air blow amount: Vh) is calculated by summing the air blow amounts for each of the living room 3, kitchen 4, room A13, room B14, and room C15 determined in the air blow amount determination step (total blast volume calculation step). The blowing capacity and the number of fans for blowing air to each of the living room 3, the kitchen 4, the room A13, the room B14, and the room C15 are selected from the air blowing amount determined in the air blowing amount determination step. In addition, in the present embodiment, the blower duct constitutes a part of the blower. That is, the amount of air to be used for selecting the blower is the amount of air to be blown out from the blow-out grill (intake section) via the air-blowing duct. The amount of air blown required for air conditioning is at least 13 m ³ /h or more, ideally about 20 m ³ /h per 2.5 ^m 3 of a room, and is adjusted according to the size and load of the room. In this embodiment, since the room A13 is larger than the room B14, two blowing grills 18a and 18b are provided and air is blown by fans 41a and 41b. In addition, since the air blower is provided with air blowing adjusting means, it is easier to use if one or more air blowers are provided in one room.

The air conditioning capacity of the air conditioner 30a is determined by the air conditioning load calculation for the building 1 (air conditioning capacity determination step).
In other words, the air-conditioning load calculation is based on the heat transferred from walls, windows, ceilings, etc.; The amount of heat and moisture due to the draft is calculated as the air conditioning load (Haruo Yamada, "Refrigeration and Air Conditioning", Yokendo Co., Ltd., March 20, 1975, pp. 240-247). Then, the air conditioner 30a for the entire building 1 is selected from among the air conditioners lined up according to capacity, and the air conditioner 30a for the entire building 1 is air-conditioned.
The optimum air-conditioning air volume of the air conditioner 30a (hereinafter referred to as optimum air-conditioning air volume: Vq) is determined from the total air-blowing volume: Vh calculated in the total air-blowing volume calculation step (air-conditioning air volume determination step).
The optimum air-conditioning air volume: Vq is an air volume that is 50% or less of the total air-blowing volume: Vh, and is an air volume that is 70% or less at most, and is an air volume that allows the air conditioner 30a to demonstrate its ability to cope with the air-conditioning load.
The air conditioner 30a has the air conditioning capacity determined in the air conditioning capacity determination step, and selects a model capable of setting an air volume less than or equal to the optimal air conditioning air volume: Vq determined in the air conditioning air volume determination step.
When the total volume of the rooms to be air-conditioned is small, the minimum air-conditioning air volume that can be set by the air conditioner 30a may be larger than the optimum air-conditioning air volume: Vq determined in the air-conditioning air volume determination step. In this case, the total blowing volume: Vh of the blowers is increased so that the air volume of 70% or less of the total blowing volume: Vh can be set by the air conditioner 30a.
That is, in order to maintain the air-conditioning capacity of the air conditioner 30a, instead of reducing the air-conditioning air volume of the air conditioner 30a more than necessary, the minimum air-conditioning air volume that can be set by the air conditioner 30a is set to the total air volume: Vh. The amount of air blown into the building 1 is increased to 20 m ³ /h or more per 2.5 m ³ of a room so as to reduce it to 50% or less.
As a method to increase the amount of air blown into the building, it is possible not only to increase the amount of air blown to each room, but also to the underfloor space and attic space that are airtight and heat-insulated from the outside, so that air is blown from the underfloor space and attic space. It is also effective to provide an opening between the return compartment and circulate the conditioned air. Even if there are too many ventilation points in the building or the blowing volume of the blower is too large, the air conditioning load of the building itself does not fluctuate, so the air conditioning capacity is hardly affected.

In this embodiment, the building 1 has a floor area of about 97.7 m ² and a ceiling height of 2.5 m. 700 m ³ /h are blown by the cross-flow fan. Both the air blower 40 for the first floor and the air blower 41 for the second floor for blowing air to each room are set to have a blowing volume 2 per unit of about 150 m ³ /h at a medium notch. The total amount of air blown into the building 1 in the present embodiment: Vh is about 1200 m ³ /h, which is larger than the air-conditioning air amount of the air conditioner 30a. That is, in the present embodiment, the air volume of 58% of the total air volume Vh is designed as an air conditioning air volume (weak air mode) that can be set by the air conditioner 30a. Although not explained in the present embodiment, for example, if about 300 m ³ /h of air is added to the underfloor, the total air flow: Vh will be about 1500 m ³ /h. ³ /h is reduced to 46% of the total air flow rate: Vh.

In the above configuration, when the air conditioner 30a is operated by setting the temperature inside the building 1, the temperature of the intake airflow 32a is detected to perform cooling or heating air conditioning operation. The air that has been conditioned becomes a blowout airflow 33a of the air conditioner 30a, and is blown substantially horizontally and substantially parallel to the side wall 20 toward the wall A21. In addition, when the first floor fan 40 and the second floor fan 41 are operated, an intake airflow 43 and a blowout airflow 44 of the fans are generated.

The wind speed of the blowing airflow 33a of the air conditioner 30a is 3 to 5 m/s, and the wind speed of the intake airflow 43 of the blower (ventilation fan) is about 0.4m/s. is slower than the wind speed of the blowing airflow 33a. Furthermore, since the blowing airflow 33a of the air conditioner 30a is blown by the cross-flow fan, the airflow tends to reach a long distance, and it is difficult to be sucked in by the blower suction airflow 43 generated by the operation of the sirocco fan 42 sucking in the surrounding air. . Therefore, most of the blowing airflow 33a of the air conditioner 30a reaches the vicinity of the wall A21 while diffusing, reverses and returns along the stairs 8 toward the wall B23, and joins the suction airflow 43 of the blower with a large amount of blowing air. are mixed. Therefore, if the suction ports of the first-floor fan 40 and the second-floor fan 41 are provided while avoiding the blowing direction of the blowing airflow 33a from the air conditioner 30a, the air conditioning circulating airflow circulates and diffuses substantially within the staircase 12. 45 is formed and short-circuiting is less likely to occur.
Since the specific gravity of the blown airflow 33a during heating is lighter than that during cooling, the specific gravity of the blown airflow 33a tends to rise. It is desirable that the direction of the blowing airflow 33a be downward.

When the air is blown into multiple rooms of building 1, some from the rooms A13, B14, and C15 on the second floor will be discharged as the second floor exhaust airflow 53, and each room on the first floor will be discharged as the first floor exhaust airflow 56. Return to room 12. At this time, since the exhaust part 52 is open near the ceiling 62, most of the discharged airflow 53 on the second floor forms an air conditioning return airflow 57 that flows along the ceiling 62 toward the air conditioner 30a. It merges with the intake airflow 32a. Therefore, the air conditioner 30a is operated and controlled by detecting an air temperature close to the temperature of each room. The exhaust part 52 may be installed anywhere as long as it is connected to the staircase 12, but it is better to install it near the ceiling 62 of the staircase 12 and close to the air conditioner 30a so that more exhaust airflow 53 can flow to the air conditioner 30a. Since the temperature of the intake airflow 32a is close to the room temperature, the difference between the set temperature when the air conditioner 30a is operated and the actual temperature inside the building 1 is controlled to be small.

The air-conditioning circulating airflow 45 flows in opposition to the exhaust airflow 53 and the intake airflow 43 until it is reversed, and diffuses by involving the surrounding air. Therefore, as it flows, the temperature of the air conditioning circulation airflow 45 rises above the temperature of the blown airflow 33a of the air conditioner 30a during cooling, and falls below the temperature of the blown airflow 33a during heating.
The air conditioning circulating airflow 45 is mainly formed on the stairs 8 side of the staircase 12 , and the air conditioning return airflow 57 is mainly formed on the second floor corridor 11 side of the staircase 12 . Furthermore, since the amount of air blown into the rooms of the building 1 is larger than the amount of air-conditioned air, in the staircase 12, the blown airflow 33a of the air conditioner 30a, the exhaust airflow 56 of the first floor, and the exhaust airflow 53 of the second floor are mixed. be. By mixing, the temperature difference between the air conditioning circulating airflow 45 and each room is further reduced.
Air flows through slits 27 in handrail 24 or handrail 28 to aid in this mixing. Part of the exhaust airflow 56 on the first floor also joins the air conditioning return airflow 57 from the boundary between the stairs 8 and the corridor 11 . Also, in order to make it easier for air currents from the first floor to join the corridor 11, a ventilation slit may be provided (not shown) that communicates between the first and second floors of the building 1 .

In the air conditioning system of the present embodiment, the temperature difference between the temperature of the blown airflow 44 blown into each room and the room temperature of each room is smaller than the temperature difference between the temperature of the blown airflow 33a of the air conditioner 30a and each room. People in the room are less likely to feel stress due to the difference in temperature between the blown airflow 44 and the room temperature, so comfort is enhanced.
The air conditioner, which controls the rotation speed of the compressor with an inverter, is operated so that the difference between the blowing temperature and the room temperature is small when the indoor air flow rate is constant and the air conditioning load is small. Therefore, when the compressor of the air conditioner 30a is an inverter type, comfort is not impaired even if the amount of air blown into the room is reduced when the air conditioning load is small, such as in the middle of the season other than summer and winter. It does not matter if Vh is reduced and the air-conditioning air volume becomes 70% or more of the total air blow volume: Vh.

The air conditioner 30a, the air blower 40 for the 1st floor, and the air blower 41 for the 2nd floor need not all be installed on the wall B23. A part of the blower can be provided in the first floor part of the staircase 12 or can be provided in the partition wall 22. - 特許庁
The direction of the blowout airflow 33a can be adjusted by the horizontal wind direction control plate of the air conditioner 30a to form an air conditioning circulating airflow 45 that joins the intake airflow 43 of the blower. 57 air passages may be formed, and the air conditioner 30 a may be provided in the partition wall 22 . The air conditioning circulating airflow 45 should be formed in the long side direction of the rectangular return section when viewed from above.
The air conditioners 30a may be provided on the wall B23 and the partition wall 22, respectively, and a heat source for heating such as a hot water radiator may be provided in addition to the air conditioners 30a. The air currents blown out from the two devices join together to circulate in the staircase 12 and be sucked into the 1st floor fan 40 and the 2nd floor fan 41. For example, solar heat can be used to generate hot water as a heat source. This design and construction method can also be applied to air conditioning systems that have
In the air-conditioning system of the present embodiment, the total amount of air blown to each room: Vh is greater than the air-conditioning air amount. It is sufficiently mixed with the air blown from the air conditioner 30a in the return section, air-conditioned, and returned to each room.
By adjusting the air volume with the air volume adjusting means of the air blower, it is possible to cope with fluctuations in the air-conditioning load of the room for each individual air blower.

The volume of the staircase room 12 is about 16.2 m ³ , and the air conditioner 30a forms the air-conditioning circulating airflow 45 for air conditioning, so it is not necessary to provide a dedicated air conditioner room. If the air conditioning circulation airflow 45 is formed, the volume of the return compartment may be smaller than this, but the volume of a normal staircase is sufficient for the volume of the return compartment, and the air conditioner 30a and the first floor blower are sufficient. 40, the air blower 41 for the 2nd floor, the exhaust part 52, and the discharge part 55 are easy to configure.
(Embodiment 2)

FIG. 6 is a plan view of a building showing the configuration of an air-conditioning system according to Embodiment 2 of the present invention, and FIG. 7 is a cross-sectional view of a corridor portion of the building taken along line CC.
As shown in FIGS. 6 and 7, a building 61 is a one-story building having an entrance 2, and has a living room 3, a kitchen 4, a toilet 5, a bathroom 6, and a washroom/dressing room 7. FIG. Also, in the building 61, a room A63 and a room B64 are arranged. A storage door A65 is provided in the room A63. A room A 63 , a room B 64 and a living room 3 in the building 61 are connected by a corridor 66 .
The ceiling 62 or the floor 63 of each of the rooms A63 and B64 is provided with blowout grills (intake units) 68a, 68b, 68c, 68d, 68e, and 68f for blowing air into the room. One ends of air ducts 63a, 63b, 64c, 64d, 64e, and 63f are connected to the blowout grills 68a, 68b, 68c, 68d, 68e, and 68f, respectively. Fan ducts 63a, 63b and 63f are arranged on the ceiling 62 as a ceiling fan duct 82, and fan ducts 64c, 64d and 64e are arranged under the floor as an underfloor fan duct 83.
A corridor 66 includes a ceiling 62, a floor 63, an entrance wall 71 to which an entrance door 70 is attached, a partition wall A72 from the living room 3, a partition wall B73 from the kitchen 4, a partition wall C74 from the toilet 5, and a wall D75 to which the air conditioner 30b is attached. , a partition wall E76 with the room A63, and a partition wall F77 with the room B64.

Above the wall D75 of the corridor 66, an air conditioner 30b is installed near the partition wall E76. The air conditioner 30b is a wall-mounted indoor unit of a separate type air conditioner connected to an outdoor unit (not shown). An intake port through which the intake airflow 32a is sucked is provided on the upper surface of the air conditioner 30b. In addition, a blowout port for blowing out the blowing airflow 33b is provided in the front lower portion of the air conditioner 30b. A vertical wind direction control plate 34 is provided at the outlet. The vertical airflow direction control plate 34 is set so as to blow out the blowing airflow 33b in a substantially horizontal direction. A horizontal wind direction control plate (not shown) is provided at the outlet. The horizontal wind direction control plate is set so that the blowing airflow 33b is blown toward the entrance wall 71 substantially parallel to the partition wall E76.

The ceiling fan 80 and the underfloor fan 81 are arranged below the air conditioner 30b. Three ceiling fans 80 and three underfloor fans 81 are installed. One ceiling blower 80 is connected to one ceiling blower duct 82 , and one underfloor blower 81 is connected to one underfloor blower duct 83 . A sirocco fan (not shown) is provided inside the ceiling blower 80 and the underfloor blower 81 , sucking air from the corridor 66 , and the sucked air flows into the ceiling duct 82 and the underfloor duct 83 . and blows out to each room A 63 , room B 64 , living room 3 and kitchen 4 in building 61 . An intake airflow 43 is generated by sucking air from the corridor 66 . The sucked air flows through the ceiling air duct 82 and the underfloor air duct 83 as the blown airflow 44 .
The ceiling blower 80 and the underfloor blower 81 are provided with air volume adjusting means. The air volume adjusting means is, for example, a notch changeover switch for changing the rotation speed of the fan and a shutter (not shown) for adjusting the opening area of the outlet of the outlet grilles 68a to 68f.

The ceiling fan 80 and the underfloor fan 81 are provided on a partition wall G84 parallel to the wall D75. In other words, the space between the wall D75 and the partition wall G84 is the air blowing partition 85, and the air blowing opening 86 communicating with the air blowing partition 85 from the corridor 66 is formed below the wall D75. Since this air blowing opening 86 substantially corresponds to the air suction part of the ceiling fan 80 and the underfloor fan 81 from the corridor 66, with such a configuration, the ceiling fan 80 and the underfloor fan 80 can be arranged below the air conditioner 30b. The air blower 81 may not be provided. Also, a sound absorbing material is provided on the inner wall of the air-blowing compartment 85 .

An exhaust part 52 is provided near the ceiling 62 of the partition wall E76 and the partition wall F77, which is higher than the air conditioner 30b, along with the lower gap 88 of the door 87 serving as the entrance from the corridor 66 to the room A63 and the room B64. An exhaust airflow 89 is formed in the lower gap 88 and the exhaust portion 52 . An opening that communicates with the living room 3 corresponds to an exhaust section 90 to the corridor 66, and an exhaust airflow 91 from the living room 3 is formed at this opening.
Therefore, the corridor 66 becomes a return section where the air discharged from the living room 3, the kitchen 4, the room A63, and the room B64 joins. A corridor 66 serving as a return section is adjacent to the living room 3, kitchen 4, room A63, and room B64.

The amount of air blown to each of living room 3, kitchen 4, room A63, and room B64 is determined from the respective volumes of living room 3, kitchen 4, room A63, and room B64 (air amount determination step). Then, the total amount of air blown to the living room 3, the kitchen 4, the room A63, and the room B64 determined in the air amount determination step is added to calculate a total air amount: Vh (total air amount calculation step). From the air blowing amount determined in the air blowing amount determination step, the air blowing capacity and the number of air blowers for blowing air to each of the living room 3, the kitchen 4, the room A63, and the room B64 are selected. In addition, in the present embodiment, the blower duct constitutes a part of the blower. That is, the amount of air blowing used for selecting the blower is the amount of air blowing out from the blow-out grill (intake portion) via the duct. Airflow required for air conditioning is at least 13m ³ /h or more per 2.5m ³ room, ideally about 20m ³ /h. In the case of a large space, two or more blowers may be installed, that is, two or more outlet grills may be installed.

The air conditioning capacity of the air conditioner 30b is determined by air conditioning load calculation for the building 61 (air conditioning capacity determination step).
The optimum air-conditioning air volume: Vq of the air conditioner 30b is determined from the total air-blowing volume: Vh calculated in the total air-blowing volume calculation step (air-conditioning air volume determination step).
The air conditioner 30b has the air conditioning capacity determined in the air conditioning capacity determination step, and selects a model capable of setting an air volume equal to or less than the optimal air conditioning air volume Vq determined in the air conditioning air volume determination step.
When the total volume of rooms to be air-conditioned is small, the minimum air-conditioning air volume that can be set by the air conditioner 30b may be larger than the optimum air-conditioning air volume: Vq determined in the air-conditioning air volume determination step. In this case, the total blowing volume: Vh of the blower is increased so that the air volume of 70% or less of the total blowing volume: Vh can be set by the air conditioner 30b.
That is, in order to maintain the air-conditioning capacity of the air conditioner 30b, the air-conditioning air volume of the air conditioner 30b is not lowered more than necessary, but the minimum air-conditioning air volume that can be set by the air conditioner 30b is set to 50% or less of the total air blow volume: Vh. This is dealt with by increasing the amount of air blown into the building 61 to 20 m ³ /h or more per ^2.53 rooms. Even if the amount of air blown by the blower is too large, it does not affect the air conditioning capacity.

In the highly airtight and highly insulated house of the present embodiment, the building 61 has a floor area of about 79.3 m ² and a ceiling height of 2.5 m, and is equipped with an air conditioner 30b having a cooling capacity equivalent to 3.6 kW. , 510 m ³ /h is blown by the cross-flow fan during the cooling operation in the weak wind mode. Both the ceiling blower 80 and the underfloor blower 81 for blowing air into each room are set to have a blowing volume of about 150 m ³ /h at a medium notch. The total amount of air blown into the building 61 in the present embodiment: Vh is about 900 m ³ /h, which is larger than the air-conditioning air amount of the air conditioner 30b.
That is, in the present embodiment, the air volume of 57% of the total air volume Vh is designed as an air conditioning air volume (weak air mode) that can be set by the air conditioner 30b.

In the above configuration, when the air conditioning temperature of the air conditioner 30b is set and operated, the temperature of the intake air flow 32a is detected and the air conditioning operation for cooling or heating is performed. The conditioned air becomes the blowing airflow 33b of the air conditioner 30b and blows out toward the entrance wall 71 substantially horizontally and substantially parallel to the partition wall E76. In addition, the ceiling fan 80 and the underfloor fan 81 are operated to generate an intake airflow 43 and a blowout airflow 44 of the fans.
In this embodiment, the ceiling fan 80 and the underfloor fan 81 are installed at the back of the blower compartment 85, and the sound absorbing material is provided in the fan compartment 85, so that the ceiling fan 80 and the underfloor fan The operating sound of the blower 81 is less likely to leak into the corridor 66. - 特許庁The air ducts 63a, 63b, 63f and the air ducts 64c, 64d, 64e also use sound absorbing ducts.

The wind speed of the blowing airflow 33b of the air conditioner 30b is 3 to 5 m/s, and the wind speed of the intake airflow 43 of the blower (ventilation fan) is about 0.4m/s. is slower than the wind speed of the blowing airflow 33b.
Therefore, most of the blown airflow 33b of the air conditioner 30b reaches the vicinity of the entrance wall 71, reverses and returns along the floor 63 toward the wall D75, and joins the intake airflow 43 of the blower. Therefore, if the blowing opening 86 is provided to avoid the blowing direction of the blowing airflow 33b from the air conditioner 30b, the air conditioning circulating airflow 92 is formed in the corridor 66, and the short circuit is less likely to occur.
Depending on the distance between the air conditioner 30b and the entrance wall 71 and the setting of the air-conditioning air volume of the air conditioner 30b, most of the discharged airflow 33b diffuses without reaching the entrance wall 71, and joins the intake airflow 43 of the blower. The air-conditioning circulating airflow 92 may also be formed by

When the air is blown to the room A63, the room B64, the living room 3, and the kitchen 4 of the building 61, it returns to the corridor 66 as the exhaust airflow 89 and the exhaust airflow 91. At this time, since the exhaust part 52 opens near the ceiling 62, most of the exhaust airflow 89 forms an air conditioning return airflow 93 that flows along the ceiling 62 toward the air conditioner 30b, and the intake airflow 32a of the air conditioner 30b. join the Part of the air-conditioning return airflow 93 is also formed by the exhaust airflow 91 flowing from the living room 3 near the ceiling 62 . The air conditioner 30b detects air temperatures close to those of the room A63, the room B64, and the living room 3, and is controlled to operate.

The air-conditioning circulating airflow 92 flows in opposition to the exhaust airflow 89 and the air-conditioning return airflow 93 until it is reversed, and diffuses by involving the surrounding air. Therefore, as the flow distance increases, the temperature of the air conditioning circulation airflow 92 rises above the temperature of the blown airflow 33b of the air conditioner 30b during cooling, and falls below the temperature of the blown airflow 33b during heating.
The difference between the temperature of the blown airflow 44 blown into the room A63, the room B64, and the living room 3 by mixing the blown airflow 33b of the air conditioner 30b with the surrounding air, and the room temperature of the room A63, the room B64, and the living room 3 is Since the difference between the temperature of the blown airflow 33b of the air conditioner 30b and the room temperature of the room A63, the room B64, and the room temperature of the living room 3 is smaller than that, people in the room are less likely to feel stress due to the temperature difference of the blown airflow 44, resulting in comfort. increases.

In addition, when the entrance door 70 is opened from the outside of the building 61 and the room is entered, the temperature is lower than the room A63, the room B64, and the living room 3 during cooling, and the temperature is lower than the room A63, room B64, and the living room 3 during heating. Since the air conditioning circulating airflow 92 with a high temperature is exposed to the air, the heat and cold felt outside can be relieved at the entrance 2, and the outside air entering from the entrance door 70 is directly into the room A63, the room B64, and the living room 3. It can also prevent intrusions.

In addition, in a highly airtight and highly insulated house, etc., a heat exchange ventilator is installed for constant ventilation. Then, it is sent to rooms A63 and B64, and when the entrance door 70 is opened, the outdoor air blown out from the heat exchange ventilator has a high static pressure and easily flows out of the room through the opening of the entrance door 70, so that the outside air enters. can be less.

If the building is large, the inside of the building can be divided into zones, and the first embodiment and the second embodiment can be used in combination.
Both Embodiment 1 and Embodiment 2 utilize the movement space of people in the building. Since these spaces are not places where residents stay for a long time, the equipment can be arranged so that the performance of air conditioners and fans can be easily exhibited, and the operation noise of these equipments is a place where the residents are less likely to be affected. In addition, it is easy to store the blower.
Furthermore, since the air conditioner 30a is installed above the corridor 11 of the staircase 12 and blows air in a substantially horizontal direction, people coming and going in the staircase 12 do not directly hit the blown airflow 33a.

It is possible to easily air-condition the entire room by using staircases, corridors, and other spaces in which residents move. It can also be applied to the air conditioning of buildings such as facilities and hospitals.

1 Building 12 Staircase 9a, 9b, 9c, 9d Blow-out grille (intake part)
18a, 18b, 18c, 18d Blow-out grill (intake part)
30a Air conditioner 33 Blowing airflow of air conditioner 41a, 41b, 41c, 41d 2nd floor fan 40a, 40b, 40c, 40d 1st floor fan 52 Exhaust unit 55 Exhaust unit 61 Building 66 Corridor 68a, 68b, 68c, 68d, 68e , 68f Blow-out grille 30b Air conditioner 80 Ceiling fan 81 Underfloor fan 90 Exhaust unit

Claims (10)

The building forms a return compartment adjacent to multiple rooms,
The room is provided with an intake unit for blowing air sent from the blower,
An exhaust unit is provided between the room and the return section for forming an exhaust airflow from the room toward the return section,
A construction method for an air-conditioning system, comprising installing a plurality of the blowers and at least one air conditioner in the return section. 2. The construction method for an air conditioning system according to claim 1, wherein a staircase in said building is used as said return section. 2. The construction method of an air conditioning system according to claim 1, wherein a corridor in said building is used as said return section. 4. The construction method for an air conditioning system according to any one of claims 1 to 3, wherein the suction port of the blower is provided so as to avoid the blowing direction of the blowing airflow from the air conditioner. 1 to 4, wherein a suction port of the blower is installed below an outlet for blowing airflow from the air conditioner, and a blowing direction of the blowing airflow from the air conditioner is substantially horizontal. 4. The construction method of the air conditioning system according to any one of 3. 6. The construction method for an air conditioning system according to claim 4, wherein at least one or more exhaust units are provided above the air conditioner. 2. The construction method for an air conditioning system according to claim 1, wherein the total amount of air blown by said plurality of blowers is larger than the amount of air conditioned by said air conditioner. Inside the building,
having a plurality of rooms and a return compartment,
The room is provided with an intake unit for blowing air sent from the blower,
The room is provided with an exhaust section that forms an exhaust airflow from the room toward the return section,
installing a plurality of the blowers and at least one air conditioner in the return section;
directing the air in the return compartment from the air intake to the room;
A method of designing an air conditioning system for directing the air in the room from the exhaust to the return compartment, comprising:
an air conditioning capacity determination step of determining the air conditioning capacity of the air conditioner by air conditioning load calculation for the building;
a blowing volume determination step of determining a blowing volume to be blown into each of the rooms from the volume of each of the rooms;
a total air blow amount calculating step of calculating a total air blow amount by summing the air blow amounts to each of the rooms determined in the air blow amount determining step;
an air-conditioning air volume determination step of determining an optimum air-conditioning air volume of the air conditioner from the total air volume determined in the total air volume calculation step;
selecting the blower that blows air to each of the rooms from the air blow amount determined in the air blow amount determining step;
A method for designing an air-conditioning system, comprising selecting the air conditioner having the air-conditioning capacity determined in the air-conditioning capacity determining step and capable of setting an air-conditioning air volume equal to or less than the optimum air-conditioning air volume determined in the air-conditioning air volume determining step. . If the air conditioner having the air conditioning capacity determined in the air conditioning capacity determining step cannot set the air volume less than or equal to the optimum air conditioning air volume determined in the air conditioning air volume determining step, the air conditioner can set the air volume. 9. The method of designing an air-conditioning system according to claim 8, wherein said blower is selected so that the minimum air-conditioning air volume is 70% or less of said total air-blowing volume. 10. The method for designing an air-conditioning system according to claim 8, wherein said blower having an air volume adjusting means capable of adjusting an air volume is selected.