JP6829588B2 - Chamber air supply type air conditioning system - Google Patents

Description

In the present invention, an outlet for blowing out conditioned air is provided in a chamber partitioned between the floor slab and the indoor space, and the indoor space is provided by using the conditioned air supplied from the outlet into the chamber. Regarding the chamber air supply type air conditioning system that air-conditions.

As the above-mentioned chamber air supply type air conditioning system, for example, the air conditioning system shown in Patent Document 1 exists. In this air conditioner system, an air conditioner is arranged in a ceiling chamber formed by a ceiling material between the lower surface of the floor slab on the upper floor and the indoor space, and the air delivery part of the air conditioner is inside the ceiling chamber. The air supply duct arranged in is connected. This air supply duct is formed to bend downward toward the upper surface of the ceiling material, and the tip of the air supply duct is perforated to diffuse the conditioned air blown downward from the outlet of the air supply duct into the ceiling chamber. It is equipped with a metal plate diffuser.

Further, in the air conditioning system shown in Patent Document 2, an air supply duct connected to an air delivery portion of an air conditioner is provided in a ceiling chamber formed of a ceiling material between the lower surface of the floor slab on the upper floor and the indoor space. Are arranged. This air supply duct is provided with a branch air supply duct extending upward toward the lower surface of the floor slab on the upper floor, and the conditioned air blown upward from the outlet of the branch air supply duct is blown upward from the floor slab. It is configured to diffuse on the bottom surface.

Japanese Unexamined Patent Publication No. 2014-228241 JP-A-2002-228204

In the air conditioning system disclosed in Patent Document 1, since the air conditioning air blown downward from the air supply duct outlet is diffused by a diffuser, the ceiling material constituting the radiant surface for radiant air conditioning is efficiently cooled or heated. can do. On the other hand, it is necessary to equip a diffuser for diffusing the conditioned air blown out from the air outlet of the air supply duct into the ceiling chamber, which complicates the structure inside the ceiling chamber and causes the air conditioning system to soar. There is.

Further, in the air conditioning system disclosed in Patent Document 2, since the lower surface of the floor slab on the upper floor is used as the diffusion surface of the air conditioning air blown upward from the outlet of the branch air supply duct, the diffuser is omitted. The air conditioning air diffusion structure can be simplified. On the other hand, for the purpose of skeleton air conditioning, the air-conditioned air is blown upward from the outlet of the branch air supply duct extending upward from the air supply duct toward the lower surface of the floor slab on the upper floor, so the side opposite to the indoor space. It only diffuses in the vicinity of the floor slab, and it is not possible to efficiently air-condition the indoor space.

In view of this situation, the main problem of the present invention is that the air-conditioning system can be made cheaper and the structure inside the chamber can be simplified while making the air-conditioned air in the chamber uniform by diffusion. On the other hand, the point is to provide a chamber air supply type air conditioning system capable of performing efficient air conditioning.

In the first characteristic configuration according to the present invention, an air-conditioned air outlet for blowing out conditioned air is provided in a chamber partitioned between the floor slab and the indoor space, and the conditioned air supplied from the air-conditioned air outlet into the chamber is provided. A chamber air-conditioning system that uses to air-condition the indoor space.
An air diffusion means for directly blowing and diffusing conditioned air from the outlet to the side surface of the beam located in the chamber is provided.
An opening that communicates with the adjacent zones is formed through the beam that divides the inside of the chamber into a plurality of zones, and conditioned air is blown from the outlet to the opening from the zone on the upstream side. It is configured to supply conditioned air to the zone on the downstream side.
A part of the conditioned air blown from the outlet to the opening of the beam is supplied to the zone on the downstream side from the opening, and the rest of the conditioned air blown to the side surface of the beam. Equipped with a distribution means to spread along
The distribution means is configured by having the opening of the beam formed to have an opening diameter smaller than the diameter of the air outlet.

According to the above configuration, the conditioned air blown from the air outlet to the side surface of the beam by the air diffusion means composed of the air outlet located in the chamber and the side surface of the beam is directed to the indoor space side along the side surface of the beam. Flows in all directions, including the direction of flow, and diffuses into the chamber.
Therefore, by making the side surface of the beam a diffusion surface of the conditioned air blown from the air outlet, the diffuser can be omitted, and the conditioned air diffused and flowed to the indoor space side along the side surface of the beam makes the chamber. The conditioned air can be smoothly diffused in the area closer to the indoor space side.
Therefore, it is possible to reduce the cost of the air-conditioning system and simplify the structure inside the chamber while making the air-conditioned air in the chamber uniform by the air diffusion on the side surface of the beam, and it is efficient for the indoor space. Air conditioning can be performed.
According to the above configuration, an opening formed through a beam that divides the inside of the chamber into a plurality of zones can be configured as a supply path for supplying conditioned air from the upstream zone to the downstream zone.
Therefore, it is not necessary to arrange the air supply duct from the upstream zone to the downstream zone while bypassing the beam, and the ceiling height is secured high while promoting the reduction of the air conditioning system and the simplification of the internal structure of the chamber. It becomes possible to do.
According to the above configuration, the conditioned air blown from the outlet located in the upstream zone is diffused along the side surface of the beam in the upstream zone, and the downstream zone is passed through the opening of the beam. Since it can be satisfactorily distributed to the conditioned air supplied to the chamber by the distributing means, it is possible to further promote the uniformity of the conditioned air in each zone in the chamber while simplifying the structure inside the chamber.
According to the above configuration, by configuring the opening diameter of the beam opening to be smaller than the diameter of the air outlet, the conditioned air diffused along the side surface of the beam in the upstream zone and the downstream through the beam opening. It can be well distributed with the conditioned air supplied to the side zone.
Therefore, it is possible to promote the uniformity of the conditioned air in each zone in the chamber while further simplifying the structure inside the chamber.

In the second characteristic configuration according to the present invention, an air-conditioned air outlet for blowing out conditioned air is provided in a chamber partitioned between the floor slab and the indoor space, and the conditioned air supplied from the air-conditioned air outlet into the chamber is provided. A chamber air-conditioning system that uses to air-condition the indoor space.
An air diffusion means for directly blowing and diffusing conditioned air from the outlet to the side surface of the beam located in the chamber is provided.
A communication space portion for communicating the zones is formed between the lower surface of the beam that divides the inside of the chamber into a plurality of zones and the upper surface of the ceiling material having through holes.
The beam is a reinforced concrete beam or a steel-framed reinforced concrete beam.
At the lower end of the beam, a secondary diffusion portion is provided to diffuse the conditioned air flowing in the vertical direction along the side surface of the beam to the horizontal direction .
The secondary diffusion portion is formed so as to project horizontally or substantially horizontally from the lower end portion of the beam toward the center side of the zone .

According to the above configuration, the conditioned air blown from the air outlet to the side surface of the beam by the air diffusion means composed of the air outlet located in the chamber and the side surface of the beam is directed to the indoor space side along the side surface of the beam. Flows in all directions, including the direction of flow, and diffuses into the chamber.
Therefore, by making the side surface of the beam a diffusion surface of the conditioned air blown from the air outlet, the diffuser can be omitted, and the conditioned air diffused and flowed to the indoor space side along the side surface of the beam makes the chamber. The conditioned air can be smoothly diffused in the area closer to the indoor space side.
Therefore, it is possible to reduce the cost of the air-conditioning system and simplify the structure inside the chamber while making the air-conditioned air in the chamber uniform by the air diffusion on the side surface of the beam, and it is efficient for the indoor space. Air conditioning can be performed.
According to the above configuration, the conditioned air blown out from the outlet collides with the side surface of the beam to diffuse, and among the conditioned air diffusing and flowing along the side surface of the beam, the conditioned air flowing in the vertical direction is the beam. Since the secondary diffusion portion provided in the above can further diffuse the air in the horizontal direction, it is possible to promote the homogenization of the conditioned air in the chamber by the diffusion.

In the third characteristic configuration according to the present invention, an opening for communicating the adjacent zones is formed through the beam for partitioning the inside of the chamber into a plurality of zones, and conditioned air is formed from the outlet to the opening. Is configured to supply conditioned air from the zone on the upstream side to the zone on the downstream side.

According to the above configuration, an opening formed through a beam that divides the inside of the chamber into a plurality of zones can be configured as a supply path for supplying conditioned air from the upstream zone to the downstream zone.
Therefore, it is not necessary to arrange the air supply duct from the upstream zone to the downstream zone while bypassing the beam, and the ceiling height is secured high while promoting the reduction of the air conditioning system and the simplification of the internal structure of the chamber. It becomes possible to do.

In the fourth characteristic configuration according to the present invention, a part of the conditioned air blown from the outlet to the opening of the beam is supplied to the zone on the downstream side from the opening, and the conditioned air is blown. The point is that a distribution means for diffusing the balance of air along the side surface of the beam is provided.

According to the above configuration, the conditioned air blown from the outlet located in the upstream zone is diffused along the side surface of the beam in the upstream zone, and the downstream zone is passed through the opening of the beam. Since it can be satisfactorily distributed to the conditioned air supplied to the chamber by the distributing means, it is possible to further promote the uniformity of the conditioned air in each zone in the chamber while simplifying the structure inside the chamber.

The front Symbol outlet, it is preferable that reducer to increase the blowing rate of the conditioned air is provided.

According to the above configuration, an opening formed through a beam that divides the inside of the chamber into a plurality of zones is formed as a supply path for supplying conditioned air from the upstream zone to the downstream zone, and the inside of the chamber is formed. By providing a reducer at the outlet located in the zone on the upstream side while simplifying the structure, it is possible to reliably supply the conditioned air to a predetermined area in the zone on the downstream side.

Cross-sectional view of a building showing a schematic configuration of a first embodiment of a chamber air supply type air conditioning system. Longitudinal sectional view of a building showing a schematic configuration of a first embodiment of a chamber air supply type air conditioning system. Enlarged cross-sectional view of a main part of a building showing a schematic configuration of a second embodiment of a chamber air supply type air conditioning system.

[First Embodiment]
1 and 2 are examples of buildings to which a chamber air supply type air conditioning system is applied, and show a schematic equipment configuration of a reinforced concrete or steel-framed reinforced concrete office building. In this schematic equipment configuration, the ceiling chamber 3 is partitioned by the ceiling material 4 between the lower surface of the floor slab 1 on the upper floor side and the indoor space 2 to be air-conditioned, and the upper surface of the floor slab 1 on the lower floor side and the indoor space. An underfloor chamber 5 is partitioned between the floor material 6 and the floor material 6.

The ceiling material 4 is composed of a convection combined type radiation panel for radiant air conditioning, innumerable small through holes 4a are formed in the ceiling material 4, and the ceiling chamber 3 and the indoor space 2 are innumerable in the ceiling material 4. It is communicated through the through hole 4a of. Further, the ceiling material 4 is made of a metal such as aluminum or iron (for example, punching metal).

The inside of the ceiling chamber 3 is divided into a plurality of zones Z1 to Z3 in the attic space 3A to 3C by beams (reinforced concrete beams or reinforced concrete beams) 7 protruding downward from a plurality of positions on the lower surface of the floor slab 1 on the upper floor side. Has been done.
Between the lower surface 7a of each beam 7 and the upper surface of the ceiling material 4, communication space portions 3D and 3E are formed in which the attic spaces 3A to 3C of the adjacent zones Z1 to Z3 communicate with each other.
In the present embodiment, the first to fourth beams 7 located in the order from the left side to the right side of FIG. 2 cause the inside of the ceiling chamber 3 to be in the order of the left side to the right side of FIG. It is divided into three parts, Z3.

Of the first zone Z1 to the third zone Z3, the portion opposite to the window 8 in the attic space 3A of the first zone Z1 and the opposite to the window 8 in the attic 3C of the third zone Z3. A heat pump type air conditioner 10 that directly supplies conditioned air (cold air or warm air) into the attic space 3A and 3C is installed in each of the side portions.

As shown in FIG. 1, the air delivery unit 10A of each air conditioner 10 has an air supply duct extending along the attic spaces 3A and 3C toward the perimeter zone side close to the window 8 of the indoor space 2. 11 is connected, and as shown in FIGS. 1 and 2, on both sides of a plurality of locations in the longitudinal direction of each air supply duct 11, in the vertical direction of the beams 7 facing each other in the width direction of the attic spaces 3A and 3C. A branch air supply duct 12 extending toward the side surface 7b along the line is connected. The air outlet 13 at the tip of each branch air supply duct 12 is set in a direction in which air conditioning air can be blown from a direction orthogonal to the side surface 7b of the beam 7, and the air conditioning air blown from each air outlet 13 is It collides with the side surface 7b of the beam 7 and diffuses.
Therefore, the air outlet 13 of the branch air supply duct 12 orthogonal to the side surface 7b of the beam 7 and the side surface 7b of the beam 7 forming the diffusion surface of the conditioned air are provided on the side surface 7b of the beam 7 located in the ceiling chamber 3. On the other hand, the air diffusion means A for blowing and diffusing the conditioned air from the air outlet 13 on the air supply duct 11 side is configured.

As shown in FIG. 2, a secondary diffusion portion B for horizontally diffusing the conditioned air flowing downward along the side surface 7b of the beam 7 is provided at the lower end of the side surface 7b of each beam 7. There is. The secondary diffusion portion B is composed of a horizontal diffusion plate 15 projecting horizontally or substantially horizontally toward the center side in the width direction of the ceiling space portions 3A to 3C.

Then, as shown in FIG. 2, the conditioned air sent from the air conditioner 10 is blown out from the outlet 13 of each branch air supply duct 12 of the air supply duct 11 toward the side surface 7b of the beam 7. The conditioned air collides with the side surface 7b of the beam 7 and diffuses along the side surface 7b. Among them, the conditioned air that diffuses and flows downward along the side surface 7b of the beam 7 collides with the horizontal diffusion plate 15 of the secondary diffusion portion B and is on the horizontal side toward the center side in the width direction of the attic spaces 3A and 3C. Is diffused to.
The first and third air conditioners 10 are arranged by the primary diffusion action of the conditioned air on the side surface 7b of the beam 7 and the secondary diffusion action of the conditioned air on the horizontal diffusion plate 15 of the secondary diffusion portion B. It is possible to make the conditioned air uniform in the entire area of the ceiling space 3A and 3C of the zones Z1 and Z3.

Due to the equalization of the conditioned air in the attic spaces 3A and 3C of the first and third zones Z1 and Z3, the air conditioner 10 was arranged among the ceiling materials 4 composed of the convection combined type radiation panel. Appropriate radiant air conditioning can be performed by uniformly cooling or heating the entire ceiling portion corresponding to the attic space portions 3A and 3C of the first and third zones Z1 and Z3. Further, the conditioned air in the attic spaces 3A and 3C of the first and third zones Z1 and Z3 in which the air conditioner 10 is arranged is passed through the innumerable through holes 4a in the ceiling corresponding to the attic spaces 3A and 3C. Can be supplied to the indoor space 2 through the above.

Next, the conditioned air supply structure to the attic space 3B of the second zone Z2 in which the air conditioner 10 and its air supply ducts 11 and 12 are not arranged will be described.
As shown in FIG. 2, of the second beam 7A divided into the first zone Z1 and the second zone Z2, one side of the air supply duct 11 arranged in the attic space 3A of the first zone Z1 ( At the part corresponding to the outlet 13 of each branch air supply duct 12 on the side of the second beam 7A facing the side surface 7b), the attic space 3A and the second zone Z2 of the adjacent first zone Z1 An opening 17 having a circular cross section that communicates with the attic space 3B is formed through. Further, of the third beam 7B divided into the second zone Z2 and the third zone Z3, one side (third beam) of the air supply duct 11 arranged in the attic space 3C of the third zone Z3. The attic space 3B of the adjacent second zone Z2 and the attic 3C of the third zone Z3 are communicated with each other of the branch air supply duct 12 (on the side facing 7B) corresponding to the air outlet 13. The opening 17 is formed through.
The opening 17 of the second beam 7A and the opening 17 of the third beam 7B are formed by a sleeve or the like arranged at the time of concrete placement of the beam 7.

Then, as shown in FIG. 2, the opening of the second beam 7A from the outlet 13 of each branch air supply duct 12 on one side of the air supply duct 11 arranged in the attic space 3A of the first zone Z1. By blowing the conditioned air onto the 17, the conditioned air can be supplied to the second zone Z2 on the downstream side through the opening 17 of the first zone Z1 to the second beam 7A on the upstream side.
Further, conditioned air is supplied to the opening 17 of the third beam 7B from the outlet 13 of each branch air supply duct 12 on one side of the air supply duct 11 arranged in the attic space 3C of the third zone Z3. By spraying, conditioned air can be supplied from the third zone Z3 on the upstream side to the second zone Z2 on the downstream side through the opening 17 of the third beam 7B.

When conditioned air is blown from the outlet 13 of the branch air supply duct 12 to the openings 17 of the beams 7A and 7B, a part of the conditioned air blown is discharged to the downstream side from the openings 17 of the beams 7A and 7B. The distribution means C is provided, which supplies the air-conditioned air remaining to the ceiling space 3B of the 2 zone Z2 and collides with the side surfaces 7b of the beams 7A and 7B to diffuse the air-conditioned air into the ceiling space 3A and 3C. Has been done.
The distribution means C arranges the openings 17 of the beams 7A and 7B and the air outlets 13 of the branch air supply duct 12 in a concentric or substantially concentric state, and sets the opening diameter D1 of the openings 17 of the beams 7 to be concentric or substantially concentric. It is configured to be smaller than the diameter D2 of the air outlet 13 of the branch air supply duct 12.

Then, by the above-mentioned distribution means C, even in the attic space 3B of the second zone Z2, a part of the conditioned air sent from the air conditioner 10 arranged in the attic 3A of the first zone Z1 is released. , A part of the conditioned air supplied from the opening 17 of the second beam 7A and sent from the air conditioner 10 arranged in the attic space 3C of the third zone Z3 is the third. It is supplied from the opening 17 of the beam 7B.
Therefore, the conditioned air supplied from the opening 17 of the second beam 7A to the attic space 3B of the second zone Z2 and the attic space from the opening 17 of the third beam 7B to the attic Z2 of the second zone Z2. With the conditioned air supplied to the portion 3B, the conditioned air can be made uniform in the entire area of the ceiling space portion 3B of the second zone Z2.

A part of the air conditioning air supplied to the attic space 3A of the first zone Z1 passes through the communication space 3D between the lower surface 7a of the second beam 7A and the upper surface of the ceiling material 4 to the second zone. It flows into the attic space 3B of Z2. Further, a part of the conditioned air supplied to the ceiling space portion 3C of the third zone Z3 passes through the communication space portion 3E between the lower surface 7a of the third beam 7B and the upper surface of the ceiling material 4 to the second zone. It flows into the space behind the ceiling 3B of Z2.

Among the ceiling materials 4 composed of a convection combined type radiating panel by the appropriate supply amount of conditioned air supplied into the attic space 3B of the second zone Z2 and the equalization of the conditioned air. Appropriate radiant air conditioning can be performed by uniformly cooling or heating the entire ceiling portion corresponding to the ceiling space portion 3B of the 2 zone Z2. Further, the air-conditioned air in the attic space 3B of the second zone Z2 is supplied to the indoor space 2 through the innumerable through holes 4a of the ceiling corresponding to the attic 3B of the second zone Z2. Can be done.

Further, as shown in FIG. 1, the tip portion of the air supply duct 11 is provided with a tip duct portion 21 arranged at the air supply port 20 formed on the perimeter zone side of the ceiling material 4. By supplying the surplus air of the cold / hot air for diffusion in the ceiling to the perimeter zone side of the indoor space 2, the heat load treatment of the perimeter zone having a large heat load can be efficiently performed.

Further, as shown in FIG. 1, a vertical duct 27 is formed in the duct space portion of the wall portion 25 on the opposite side of the window 8 to form a return air passage 26 for communicating the underfloor chamber 5 and the ceiling chamber 3. Is provided. At the upper part of the return air passage 26 of the vertical duct 27, the tip end portion of the return air duct 29 connected to the air introduction portion 10B of the air conditioner 10 is arranged, and at the lower end portion of the vertical duct 27 near the feet. Is formed with a return air port 28 for introducing conditioned air existing near the feet in the indoor space 2 into the return air passage 26.
Then, at the time of heating, the cold air existing near the feet in the indoor space 2 can be introduced as the return air of the air conditioner 10 through the return air port 28 of the vertical duct 27 to improve the environment at the feet during heating. it can.

Further, the floor material 6 is formed with an inflow port 22 that communicates the perimeter zone of the indoor space 2 and the underfloor chamber 5, and the peri is introduced into the underfloor chamber 5 from the inflow port 22 with conditioned air on the perimeter zone side. A meter fan 23 is provided.
Then, at the time of heating, the perimeter fan 23 arranged near the window 8 performs underfloor ventilation with the conditioned air introduced into the underfloor chamber 5 from the inflow port 22 of the floor material 6, and circulates the conditioned air to circulate the feet. The thermal environment in the vicinity can be improved.

[Second Embodiment]
FIG. 3 shows another embodiment of the chamber air supply type air conditioning system, and a reducer 31 for increasing the blowing speed of the conditioned air is provided at the outlet 13 of each branch air supply duct 12 of the air supply duct 11. .. Note that FIG. 3 shows a state in which the reducer 31 is provided at the outlet 13 which is arranged in the attic space 3A of the first zone Z1 and blows conditioned air toward the opening 17 of the second beam 7A. However, as a matter of course, a similar reducer 31 can be provided at the air outlet 13 arranged in the attic space 3C of the third zone Z3.

Then, the conditioned air sent from the air conditioner 10 is blown from the outlet 13 of the reducer 31 of each branch air supply duct 12 on one side of the air supply duct 11 toward the opening 17 of the beam 7. A part of the conditioned air blown is supplied from the opening 17 of the beam 7 to the attic space 3B of the second zone Z2 on the downstream side. At this time, since the blowing speed of the conditioned air is increased by the reducer 31, the reach of the conditioned air supplied to the attic space 3B of the second zone Z2 on the downstream side is expanded, and the attic of the second zone Z2 is expanded. It is possible to further promote the homogenization of conditioned air in the space 3B.
Further, the remaining conditioned air blown from the outlet 13 of the reducer 31 of each branch air supply duct 12 collides with the peripheral edge of the opening 17 on the side surface 7b of the beam 7, and the space behind the ceiling of the first zone Z1. It is spread over a wide area in 3A.
Since the other configurations are the same as the configurations described in the first embodiment, the same numbers as those in the first embodiment are added to the same configuration parts, and the description thereof will be omitted.

[Other Embodiments]
(1) In each of the above-described embodiments, the distribution means C is arranged such that the opening 17 of the beam 7 and the air outlet 13 of the branch air supply duct 12 are concentric or substantially concentric, and the opening of the beam 7 is provided. The opening diameter D1 of the portion 17 is formed to be smaller than the diameter D2 of the air outlet 13 of the branch air supply duct 12, but the present invention is not limited to this configuration.
For example, even when the opening 17 and the outlet 13 of the beam 7 are configured to have the same diameter, the opening 17 and the outlet 13 are displaced in the radial direction by a dimension smaller than their diameter. By arranging them, the conditioned air blown out from the outlet 13 can be distributed to the upstream zone and the downstream zone.
Further, by providing a baffle plate for distribution such as punching metal in the opening 17 of the beam 7, the conditioned air blown out from the outlet 13 can be distributed to the upstream zone and the downstream zone.
In short, the distribution means C supplies a part of the conditioned air blown from the outlet 13 to the opening 17 of the beam 7 from the opening 17 to the downstream zone, and the rest of the conditioned air blown. Any structure may be used as long as it can be diffused along the side surface 7b of the beam 7.

(2) In each of the above-described embodiments, the conditioned air blown from the air outlet 13 corresponding to the opening 17 of the beam 7 is distributed by the distribution means C, but the specific air outlet 13 is said to be the same. All of the conditioned air blown from the air outlet 13 may be supplied to the downstream zone through the opening 17 of the beam 7.

(3) In each of the above-described embodiments, as an example of the chamber in which the floor slab 1 and the indoor space 2 are partitioned, the ceiling chamber 3 in which the space between the floor slab 1 and the indoor space 2 is partitioned by the ceiling material 4 is taken as an example. However, it is not limited to this. For example, when a beam protrudes from the upper surface of the floor slab 1 on the lower floor side, the chamber air supply type air conditioning system of the present invention is installed in the underfloor chamber 5 partitioned by the floor material 6 from the indoor space 2. Can be applied.

(4) In each of the above-described embodiments, the air conditioner 10 is arranged inside the ceiling chamber 3, but the air conditioner 10 is arranged outside the ceiling chamber 3, and the air supply duct 11 connected to the air conditioner 10 is connected to the ceiling chamber. It may be arranged in 3.

(5) In each of the above-described embodiments, the ceiling material 4 is composed of a metal convection combined type radiation panel for radiation air conditioning, but the ceiling material 4 is radiated exclusively for radiation air conditioning by omitting the through hole 4a. It may be composed of a panel, or may be composed of a ceiling panel dedicated to convection air conditioning by innumerable through holes 4a without performing radiation air conditioning.

(6) In each of the above-described embodiments, the opening 17 of the beam 7 is configured to have a constant opening diameter, but an opening diameter changing means for changing the opening diameter of the opening 17 of the beam 7 may be provided.

(7) In each of the above-described embodiments, as the beam 7, a reinforced concrete beam or a steel-framed reinforced concrete beam is shown as an example, but a steel-framed beam made of H-shaped steel or the like may be used.

1 Floor slab 2 Indoor space 3 Chamber (ceiling chamber)
5 chamber (underfloor chamber)
7 Beam 7b Side 13 Air outlet 17 Opening 31 Reducer A Air diffusion means B Secondary diffusion part C Distributing means D1 Opening diameter D2 Caliber Z1 zone (1st zone)
Z2 zone (second zone)
Z3 zone (third zone)

Claims (4)

A chamber that blows out conditioned air is provided in a chamber that is partitioned between the floor slab and the indoor space, and the conditioned air supplied from the outlet into the chamber is used to air-condition the indoor space. It is an air supply type air conditioning system
An air diffusion means for directly blowing and diffusing conditioned air from the outlet to the side surface of the beam located in the chamber is provided.
An opening that communicates with the adjacent zones is formed through the beam that divides the inside of the chamber into a plurality of zones, and conditioned air is blown from the outlet to the opening from the zone on the upstream side. It is configured to supply conditioned air to the zone on the downstream side.
A part of the conditioned air blown from the outlet to the opening of the beam is supplied to the zone on the downstream side from the opening, and the rest of the conditioned air blown to the side surface of the beam. Equipped with a distribution means to spread along
The distribution means is a chamber air supply type air conditioning system composed of the openings of the beams formed to have an opening diameter smaller than the diameter of the air outlet. A chamber that blows out conditioned air is provided in a chamber that is partitioned between the floor slab and the indoor space, and the conditioned air supplied from the outlet into the chamber is used to air-condition the indoor space. It is an air supply type air conditioning system
An air diffusion means for directly blowing and diffusing conditioned air from the outlet to the side surface of the beam located in the chamber is provided.
A communication space portion for communicating the zones is formed between the lower surface of the beam that divides the inside of the chamber into a plurality of zones and the upper surface of the ceiling material having through holes.
The beam is a reinforced concrete beam or a steel-framed reinforced concrete beam.
At the lower end of the beam, a secondary diffusion portion is provided to diffuse the conditioned air flowing in the vertical direction along the side surface of the beam to the horizontal direction .
The secondary diffusion portion is a chamber air supply type air conditioning system formed so as to project horizontally or substantially horizontally from the lower end of the beam toward the center side of the zone . An opening that communicates with the adjacent zones is formed through the beam that divides the inside of the chamber into a plurality of zones, and conditioned air is blown from the outlet to the opening from the zone on the upstream side. The chamber air supply type air conditioning system according to claim 2, which is configured to supply conditioned air to the zone on the downstream side. A part of the conditioned air blown from the outlet to the opening of the beam is supplied to the zone on the downstream side from the opening, and the rest of the conditioned air blown to the side surface of the beam. The chamber air supply type air conditioning system according to claim 3, further comprising a distribution means for diffusing along.

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