JP2001056133A - Air-conditioning system utilizing skelton heat storage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To constitute this system at a low initial cost and to simplify combination and arrangement of a floor slab and a duct system. SOLUTION: A heat storage air passage comprises a space 4 between beams constituted in parallel to a floor slab 1. An air-conditioner 5 is situated in a space corresponding to one end side of the heat storage air passage and a ceiling air outlet 6 and a ceiling air inlet 7 are formed in a ceiling. The supply air side of the air-conditioner is caused to selectively communicate with the ceiling air outlet and a night air outlet 10 through a supply air route 9 having a switching mechanism 8, and the suction side of the air-conditioner is caused to communicate with the space through an air inlet 13 in a space. The ceiling air inlet 7 is formed such that the night air outlet and the air inlet in a space are situated in positions separated away from each other and the night air outlet is formed such that air is jetted along the wall surface of a floor slab.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioning system using heat storage in a building.

[0002]

2. Description of the Related Art Recently, an air conditioner is required to improve the indoor environment immediately after the start of the air conditioner, or to reduce the capacity of a heat source and an air conditioner due to a peak cut of an air conditioning load. An air-conditioning system has been proposed that uses a heat storage system to store heat (including cold heat) in the concrete slab skeleton in advance by storing heat in an air conditioner and using this heat when air conditioning is required. ing.
See, for example, JP-A-10-220812.

In this air conditioning system, for example, a hollow portion of a floor slab constituted by a hollow slab is formed as an air passage for heat storage and heat radiation, and the air circulating air is returned from the air conditioner to the air conditioner through an air conditioned space at an appropriate position in the air passage. The basic configuration is a configuration in which an air passage of a floor slab is arranged.

[0004] An example of such an air conditioning system will be described with reference to the drawing. For example, the air conditioning system shown in FIG. Flows into the under-floor space portion 105, which is provided between the floor panel 103, and is supplied from the outlet 106 provided on the floor 103 to the room space 107 of the room.
08, the ceiling panel 108
Into the space 110 in the ceiling between the floor slab 104 on the ceiling side and the floor slab 104 on the ceiling side.
The floor slab 104 is constituted by a hollow slab having a hollow portion 112, and heat is stored by the hollow portion 112, and a heat storage air passage for heat radiation is formed by the floor slab 104 so that the conditioned air is required. The heat storage air passage is caused to flow according to A large number of parallel hollow portions 112 are connected to each other on the right end side in the drawing to form a serial path, thereby forming an air inlet / outlet at both ends of the heat storage air passage on one end side of the floor slab 104. That is, it is arranged on the left end side in the figure.
That is, in order to supply the conditioned air from the discharge side 102 of the air conditioner 51 to the heat storage air passage, an air duct 113 is arranged below the floor slab 104 of the ceiling interior space 110 in a direction perpendicular to the hollow portion 112. This air duct 113
A branch duct 114 is provided at one end of each series path. On the other hand, the other end of the series path is communicated with the space 110 in the ceiling by the opening 115.

In such a configuration, the air conditioner 51 is operated only for a necessary time outside of the time when air conditioning is required, particularly at night when the unit price of the electricity rate is low, and the conditioned air is mainly circulated through the heat storage air passage and circulated. By performing the heat storage operation, heat (including cold heat) generated by the operation of the air conditioner 51 is stored in the floor slab 104 constituting the hollow portion 112. In the air conditioning time zone, the floor slab 104 is operated by flowing air-conditioned air flowing in the living room space 107 to the heat storage air passage upstream or downstream thereof.
Can be recovered by the conditioned air and used for air conditioning of the living room space 107. For example, the heat storage operation is performed for 10 hours from 10:00 at night to 8:00 the next morning, and the floor slab 1
The heat is stored in 04 and the heat is released during the day. In the figure, solid and broken arrows indicate the flow of air-conditioned air during the heat storage operation, and the dashed-dotted arrows indicate the flow of air-conditioned air during the air-conditioning operation.
In the latter air-conditioning operation, the path of the conditioned air flows only through the space 110 in the ceiling and returns to the suction side 111 of the air conditioner 51, and the path of the air-conditioning air flowing through the heat storage air passage from the space 110 in the ceiling. It is configured to be able to select a path that returns to the suction side 111, and a duct arrangement, a switching mechanism, and the like for performing such an operation are appropriately configured. still,
Although the above example is a floor blowing method, it is needless to say that the present invention can also be applied to a ceiling blowing method. In the above example, a series path is formed by connecting adjacent hollow portions at one end, but there is also a method in which a series path is not formed.

[0006]

In the above air conditioning system, the hollow portion of the floor slab formed by the hollow slab is configured as an air passage for storing and radiating heat.
Although the heat storage efficiency is high, there are problems in that the initial cost is high and that the arrangement and fitting of the floor slab and the duct system are complicated. An object of the present invention is to solve such a problem.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, according to the present invention, a heat storage air passage made of a concrete frame is provided at an appropriate position of an air path from an air conditioner to an air-conditioned space and a return from the air-conditioned space to the air conditioner. In the air conditioning system to be arranged, the heat storage air passage is constituted by a space between beams formed in parallel with the floor slab, an air conditioner is installed in a space corresponding to one end of the heat storage air passage, and a ceiling outlet is provided on the ceiling. And a ceiling suction port, the air outlet side of the air conditioner is selectively connected to the ceiling air outlet and the night air outlet via an air path provided with a switching mechanism, and the air inlet side of the air conditioner is The space is connected to the space via the space suction port.The ceiling suction port is located at a position away from the night air outlet and the space air suction port, and the night air outlet draws air along the wall surface of the floor slab. Spout To propose an air conditioning system that is configured to be.

In the present invention, it is proposed that the night air outlet has a flat horizontally long shape parallel to the wall surface of the floor slab.

In the present invention, it is proposed that the ceiling suction port has a flat and long shape extending in a direction crossing the heat storage air passage.

Further, the present invention proposes, in the above structure, to provide a cylinder for guiding air in the direction of the floor slab at the ceiling suction port.

According to the present invention, at night,
The conditioned air that has blown out from the night air outlet along the wall surface of the floor slab that forms the heat storage air passage flows along the wall surface over a long distance due to the Coanda effect, and at this time, heat exchange with the floor slab is performed. Therefore, heat is stored in the frame. The conditioned air that has flowed along the wall surface of the floor slab while exchanging heat in this way eventually leaves the wall surface, flows below the floor slab, and returns to the air conditioner through a suction port in the space.

On the other hand, at the time of air conditioning, the conditioned air from the air conditioner is blown into the room from the ceiling outlet through the outlet air path and is used for air conditioning. In addition, the indoor air flows into the space constituting the heat storage air passage from the ceiling suction port, flows through this space, and returns to the air conditioner through the space suction port. At this time, the air that has flowed into the space from the ceiling suction port exchanges heat with the floor slab when flowing along the floor slab, and returns to the air conditioner in this state. The recovered heat can be recovered and used for air conditioning.

[0013]

Next, an embodiment of the present invention will be described with reference to the drawings. 1 to 3 are explanatory diagrams conceptually showing an embodiment of the air conditioning system of the present invention, and FIGS. 4 to 6 are explanatory diagrams showing the configuration of FIGS. 1 to 3 more specifically. In these figures, reference numeral 1 denotes a floor slab, and 2 denotes a ceiling panel installed below the floor slab 1. The floor slab 1 constitutes the beams 3 in parallel, and therefore, in the space in the ceiling between the floor slab 1 and the ceiling panel 2, there is an elongated space 4 (4a, 4b,...) Divided by the adjacent beams 3. Are configured in parallel. The floor slab 1 having such a configuration is, for example,
A beam member of a composite structure with an RC structure at the end and an S structure at the center,
It can be constructed using a construction method of constructing a structure of a large span frame by using a CSB (Composite SuperBeam) for a large span portion. An air conditioner 5 such as a package type air conditioner (PAC) or a fan coil unit (FCU) is installed at one end side in the space 4, and necessary elements attached to the air conditioner must be installed at appropriate places. Can be. On the other hand, the ceiling panel 2 has an appropriate number of ceiling outlets 6 and ceiling inlets 7. The outlet side of the air conditioner 5 is configured to selectively communicate with the ceiling outlet 6 and the night outlet 10 via an outlet air path 9 provided with a switching mechanism 8.
That is, the outlet air path 9 includes a common duct 11c from the outlet side of the air conditioner 8 and ducts 11a, 1b branched therefrom.
1b, dampers 12a and 12b such as motor dampers are installed in the respective ducts 11a and 11b, and the switching mechanism 8 is configured by these dampers 12a and 12b.
The ducts 11a and 11b are connected to the ceiling outlet 6 and the night outlet 10, respectively. On the other hand, the suction side of the air conditioner 8 is configured to communicate with the space 4 via a suction port 13 in the space. In the above configuration, the ceiling suction port 6 is arranged at a position away from the night air outlet 10 and the space air inlet 13, and the night air outlet 10 blows out air along the wall surface of the floor slab 1. It has a configuration. For this reason, in this embodiment, the night air outlet 10 is formed in a flat horizontally long shape parallel to the wall surface of the floor slab 1. In this embodiment, a cylinder 14 for guiding air in the direction of the floor slab 1 is installed at the ceiling suction port 6.
It is itself configured in a flat horizontally long shape that is long in the direction crossing the space.

In the above configuration, during the heat storage time zone, FIG.
The air conditioner 5 is operated by closing the damper 12a and opening the damper 12b as shown in FIG. The conditioned air from the discharge side of the air conditioner 5 reaches the night air outlet 10 via the duct 11b,
From here, it is jetted into the space 4 in the direction along the wall surface of the floor slab 1. The air-conditioning air thus blown out flows along the wall surface over a long distance due to the Coanda effect. At this time, heat exchange with the floor slab 1 is performed favorably, and heat is stored in the floor frame. You. Of course, the conditioned air is beam 3
They also exchange heat and store heat in them. Since the air in the space 4 is sucked into the suction side of the air conditioner 5 through the suction port 13 in the space, the conditioned air flowing along the wall surface of the floor slab 1 while exchanging heat as described above is At the end, it separates from the wall surface, reverses and flows below the floor slab 1 to reach the suction port 13 in the space, from which the air flows back to the suction side of the air conditioner 5.
In this operation, no air conditioning is performed because the conditioned air does not flow into the living room space 15.

Next, during the air-conditioning period, as shown in FIG. 2, the damper 12a is opened, the damper 12b is closed, and the air conditioner 5 is closed.
To drive. The conditioned air from the discharge side of the air conditioner 5 reaches the ceiling outlet 6 via the duct 11a, from which the room space 1
5 and is supplied to the room for air conditioning. The air supplied to the air conditioner then flows from the ceiling suction port 7 into the space 4 and flows through the space 4 so that the air suction port 1 in the space is operated similarly to the heat storage operation.
Reflux flows from 3 to the suction side of the air conditioner 5. The air supplied to the air-conditioning of the living room space 15 flows through the space 4 along the wall surface of the floor slab 1, and at this time, heat exchange with the floor slab 1 is performed, and the heat stored up to that time is exchanged. To return to the air conditioner 5 in this state, the load on the air conditioner 5 is reduced,
Therefore, the stored heat can be effectively used during the air conditioning time zone. In this embodiment, a cylindrical body 14 that guides air in the direction of the floor slab 1 is installed at the ceiling suction port 6, and the ceiling suction port 6 itself has a flat horizontally long shape that is long in a direction crossing the space. Because it is composed, living room space 15
The air supplied to the air conditioner effectively flows along the wall surface of the floor slab 1 and heat exchange is effectively performed.

[0016]

As described above, the present invention has the following effects. a. The building thermal storage air conditioning system can be configured at low initial cost. b. The arrangement and fitting of the floor slab and the duct system are simplified. c. An existing building having parallel beams can constitute a skeleton thermal storage air conditioning system.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view conceptually showing a configuration of an air conditioning system according to an embodiment of the present invention in a heat storage operation state.

FIG. 2 is a longitudinal sectional view conceptually showing a configuration of an embodiment of the air conditioning system of the present invention in an air conditioning operation state.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 shows an embodiment of the air conditioning system of the present invention in FIG.
FIG. 4 is a longitudinal sectional view of a main part more specifically shown in FIGS.

FIG. 5 is a sectional view taken along line BB of FIG. 4;

6 is a sectional view taken along line CC of FIG. 4;

FIG. 7 is a perspective view showing a conventional example of an air conditioning system using heat storage of a building body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Floor slab 2 Ceiling panel 3 Beam 4 (4a, 4b, ...) Space 5 Air conditioner 6 Ceiling outlet 7 Ceiling inlet 8 Switching mechanism 9 Outlet air path 10 Night outlet 11 (11a, 11b, 11c) Duct 12 ( 12a, 12b) Damper 13 Suction port in space 14 Cylindrical body 15 Living room space

Claims (4)

[Claims] 1. An air conditioning system in which a heat storage air passage made of a concrete skeleton is arranged at an appropriate position of an air path from an air conditioner to an air conditioning space and returning from the air conditioning space to the air conditioner, the heat storage air passage is formed in parallel with a floor slab. Air-conditioner is installed in the space corresponding to one end of this heat storage air passage, and the ceiling outlet and ceiling inlet are configured on the ceiling to switch the air-conditioner outlet side. A structure in which the ceiling air outlet and the night air outlet are selectively communicated with each other through an air outlet path provided with a mechanism, and a structure in which the suction side of the air conditioner communicates with the space through a space air inlet, The suction port is located at a position away from the night air outlet and the air inlet in the space, and the night air outlet is configured to blow air along the wall surface of the floor slab. Air conditioning Stem 2. The air-conditioning system according to claim 1, wherein the night air outlet is formed in a flat and horizontally long shape parallel to the wall surface of the floor slab. 3. The air-conditioning system according to claim 1, wherein the ceiling suction port is formed in a flat and horizontally long shape extending in a direction crossing the heat storage air passage. 4. The air conditioning system using heat storage of a frame according to any one of claims 1 to 3, wherein a cylindrical body for guiding air in the direction of the floor slab is provided at the ceiling suction port.