JPH09170784A - Method of air radiation type air conditioning and device therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use harmless and safe air as a thermal media by conducting air conditioning air to the inlet hole on a ceiling space side from an under floor space through the space between a structure body and a room, and by air conditioning the inside of the room with radiating heat from a floor, walls and a ceiling. SOLUTION: A ceiling 13 comprises ceiling materials and between a body l and a room 10, an under floor space 20 on the side of a floor 11, a spacing inside the walls 21 on the side of walls 12 and a ceiling space 22 on the side of ceiling 13 are formed. Conditioned air from the air conditioner 9 flows through a piping 6a from the blow out hole 6 inside dual floors into the under floor space 20, and most of the conditioned air is conducted from the under floor space 20 to the spacing inside the walls 21 and from ceiling space 22 to the inlet hole 21 inside the ceiling on the side of ceiling space 22 through the ceiling space 22, and a part of conditioned air is conducted from a floor blow out hole 15 to the inside of the room 10, blown to the indoor perimeter part 30 and conducted from the inlet hole 16 on the surface of the ceiling to the ceiling space 22. The conditioned air wraps the space between the structure body 1 and the room 10 as an air curtain and air conditions the room 10 by radiation utilizing all surfaces of the floor 11, the walls 12 and the ceiling 13 as the heat radiating surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air radiation type cooling / heating method and apparatus using air as a heat medium.

[0002]

2. Description of the Related Art Conventionally, as an air conditioning system, a ceiling blowing method and an underfloor air conditioning method are generally known.
However, with the ceiling blowing method, you can feel the air flow (draft),
There is a problem that the temperature distribution becomes non-uniform.

The underfloor air conditioning system has not solved the problem of draft. On the other hand, energy saving,
Radiation air-conditioning systems are drawing attention from the viewpoints of CFC-free property and comfort. In particular, a comfortable environment is required as an air-conditioning environment in a living room or a sick room in an apartment for the elderly, a recreation facility, a home for the aged, a medical facility, etc. As a radiation air conditioning system, for example, Japanese Patent Laid-Open No. 7-2001
No. 3, JP-A-7-174368, JP-A-7-
The thing disclosed by the 190418 gazette etc. is known.

In these, cold and hot water pipes are buried in concrete slabs and panels that form floors and ceilings, and cold and hot water is flowed through these pipes to cool and heat by radiant heat from the concrete slabs and panels. .

[0005]

However, in the conventional radiant cooling and heating, in order to secure a comfortable air-conditioning environment, the floor,
Since the hot and cold water pipes must be buried in all of the walls and the ceiling, there is a problem that the device becomes large in size, the control becomes complicated, and the running cost and the initial cost are high.

Further, since cold and hot water pipes must be buried in all of the floor, walls and ceiling, there is a risk of dew condensation and water leakage. Further, since there is a large temperature difference between the heat source and the floors, walls, and ceiling that are the heat generating parts, there is a problem that temperature control is difficult. In addition, the ceiling radiant panel unit within the limited ceiling and floor,
Even if the floor radiant panel unit area is increased, the radiant heat from the side surface cannot be secured, so the average radiant temperature of each radiant panel unit becomes lower than the dew condensation temperature during cooling, and the average radiant temperature of each radiant panel unit during heating. Is higher than the temperature at which low-temperature burns may occur, and the temperature conditions of cold and warm water cannot be relaxed, which is not preferable. Here, the average radiation temperature is said to be roughly proportional to the average value of the panel surface temperatures of the ceiling radiation panel unit and the floor radiation panel unit.

The present invention has been made to solve the conventional problems, and an object thereof is to provide an air radiation type cooling and heating method and apparatus using harmless and safe air as a heat medium. It is in.

[0008]

According to a first aspect of the present invention, a skeleton and a room are partitioned by an underfloor space, a gap in a wall body and a ceiling space, and conditioned air is separated from the underfloor space to the skeleton and the room. It is characterized in that it is led to the inlet on the side of the ceiling space through the space and the room is cooled and heated by the radiant heat from the floor, walls and ceiling.

According to the second aspect of the present invention, the skeleton and the room are partitioned by the underfloor space, the space in the wall and the ceiling space, and the air-conditioning air is provided in the underfloor space by providing an outlet and a suction port on the floor and ceiling on the window side. Is led to the inlet on the ceiling space side through the space between the body and the room and the window in the room, and the room is cooled and heated by radiant heat from the floor, walls and ceiling and radiant heat from the window.

According to the third aspect of the invention, the skeleton, the chamber installed in the skeleton, the underfloor space formed on the floor side between the skeleton and the chamber, and the wall side between the skeleton and the chamber. A gap formed in the wall, a ceiling space formed on the ceiling side between the skeleton and the room, a double in-floor outlet for conditioned air provided in the underfloor space, and an in-ceiling inlet provided in the ceiling space And an air conditioner that connects the double floor outlet and the ceiling inlet.

According to a fourth aspect of the present invention, a skeleton, a chamber installed in the skeleton, an underfloor space formed on the floor side between the skeleton and the chamber, and a wall side between the skeleton and the chamber. A gap formed in the wall, a ceiling space formed between the body and the room on the ceiling side, a floor outlet formed on the floor on the window side in the room, and a ceiling surface suction port formed on the ceiling in the room And a double in-floor outlet for conditioned air provided in the underfloor space, an in-ceiling inlet provided in the ceiling space, and an air conditioner that connects the double-in-floor outlet and the in-ceiling inlet. It is characterized by that.

According to a fifth aspect of the present invention, in the air radiant cooling and heating apparatus according to the third or fourth aspect, the double floor outlet has a shield panel for air-conditioning air diffusion provided at an opening end of a pipe communicating with the air conditioner. It is characterized by being formed.

(Operation) In the inventions of claims 1 and 3, when the conditioned air flows into the underfloor space, the conditioned air is sucked from the underfloor space to the ceiling space side through the clearance in the wall and the ceiling space. It is possible to heat and cool the skeleton and the room like radiant heat with the floor, wall and ceiling as radiating surfaces.

In the inventions of claims 2 and 4,
In addition to the inventions of claims 1 and 3, part of the conditioned air is taken into the room from the floor outlet, blown out to the indoor perimeter, and a layer of conditioned air is provided between the ceiling inlet and an air curtain like an air curtain. And radiant heat can be radiated to the room side from this layer.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment according to the inventions of claim 2, claim 4 and claim 5. In the figure, 1 represents a skeleton. A chamber 10 is formed in the body 1. The chamber 10 includes a floor 11, a wall 12, a ceiling 13 and a window glass 14. On the floor 11, the window glass 1 is on the side of the window glass 14
4 is provided with a slit-shaped floor outlet 15 that opens in parallel. The ceiling 13 is provided with a slit-like ceiling surface suction port 16 that opens parallel to the window glass 14 at a position facing the floor outlet 15.

In the present embodiment, as shown in FIG. 2, the floor 11 is composed of a plywood 11a and a floor material 11b.
Here, the plywood 11a is provided with a polyethylene film 11c in the lowermost layer on the underfloor space 20 side. This is because the conditioned air is introduced into the underfloor space 20.
Directly through the protective layer, plywood 11a, and floor material 11b of the floor 1
This is to function as a shielding layer that prevents conditioned air from being blown out from the first example. The floor 11 is arranged on the plurality of joists 4 provided on the plurality of large pulls 3 arranged on the floor slab 2.

As shown in FIG. 2, the wall 12 is composed of vertically arranged wall base materials 12a and 12b placed vertically, and vertically placed wall base materials placed between the wall base materials 12a and 12b. 1
2c, base materials 12a and 12b for walls, and base material 12c for walls
It is composed of boards 12d and 12e which are arranged across the board. Further, the horizontal wall base material 12 a is arranged on the joist 4. Further, as shown in FIG. 4, true pillars 5 are arranged at a predetermined interval between the wall base materials 12a and 12b for horizontal installation.

As shown in FIG. 2, the ceiling 13 is a ceiling material 1.
3a. Then, as shown in FIGS. 1, 2 and 4, between the skeleton 1 and the chamber 10, the underfloor space 20 is on the floor 11 side, the inter-wall space 21 is on the wall 12 side, and the ceiling space 22 is on the ceiling 13 side. Are formed.

As shown in FIGS. 1 and 3, the underfloor space 20 is provided with a double in-floor outlet 6 for conditioned air that penetrates the opening 2a provided in the floor slab 2, and the ceiling space 22 is provided with Is provided with an in-ceiling suction port 8 penetrating an opening 7a provided in the wall portion 7 of the skeleton 1. And the double floor outlet 6
The in-ceiling suction port 8 communicates with the air conditioner 9 via pipes (ducts) 6a, 8a.

The double floor outlet 6 is, as shown in FIG.
A shield panel having a diameter larger than that of the pipe (duct) 6a via a plurality of columns 6c in order to minimize the thermal influence of the conditioned air on the floor material 11b in the underfloor space 20 at the opening end 6b of the pipe (duct) 6a. 6d is arranged. Here, the pillar 6c
The height is set so that the conditioned air flowing in from the opening end 6b of the pipe (duct) 6a can be efficiently diffused in the underfloor space 20, but in this embodiment, it is set to about 100 mm.

Next, the operation of this embodiment thus constructed will be described. First, when the conditioned air from the air conditioner 9 flows into the underfloor space 20 from the double in-floor outlet 6 through the pipe (duct) 6a, the conditioned air flows to the entire underfloor space 20 by the shielding panel 6d. The flow can be changed horizontally. Next, as shown in FIGS. 1 and 2, most of the conditioned air is guided from the underfloor space 20 through the inter-wall clearance 21 and the ceiling space 22 to the ceiling intake port 8 on the ceiling space 22 side, and the conditioned air As shown in FIG. 1, a part is introduced into the room 10 through the floor outlet 15, blown out into the indoor perimeter unit 30, and introduced into the ceiling space 22 through the ceiling surface suction port 16.

As described above, the conditioned air is supplied to the skeleton 1 and the room 10.
Enclose the space like an air curtain, floor 11, wall 12
Also, the entire surface of the ceiling 13 can be used as a radiation surface for cooling and heating with radiant heat. At the same time, the conditioned air blown to the indoor perimeter unit 30 forms a layer of conditioned air like an air curtain along the window surface due to the Coanda effect, and radiant heat can be radiated to the indoor side from this layer. Of course, the layer of conditioned air can also block the cold heat entering from the window glass 14.

Therefore, the entire room 10 is surrounded by the radiant heat of the conditioned air, and comfortable air conditioning can be performed without feeling the air flow. According to an experiment conducted by the present inventor, the indoor temperature setting is 24 ° C. to 26 ° C. in summer, 22 ° C. to 24 ° C. in winter, and the floor surface temperature is 22 ° C. or higher in consideration of the discomfort of the sole of the foot. As a result, the air flow velocity could be set to ≦ 0.25 m / s in summer and ≦ 0.15 m / s in winter. This means that no airflow is felt (no draft).

The sensible temperature (PMV value) was ≤ ± 0.5. This means that there is no bias in the thermal sensation.
Indoor temperature difference (floor + 0.1m to + 1.1m)
Was ≦ 3 ° C. This means that there is no difference between upper and lower temperatures. The horizontal temperature difference was ≤2 ° C. This means that the horizontal temperature distribution is uniform and that the temperature difference between the chambers can be minimized.

In the above embodiment, the case where the radiant heat by the conditioned air from the indoor perimeter unit 30 is used has been described, but this may be omitted depending on the installation location of the room 10 (claims). 1, claim 3). Even in this case, since the skeleton 1 and the room 10 are surrounded by the conditioned air in an air curtain shape, the floor 11, the wall 12 and the ceiling 13 can be radiantly heated and cooled by the radiant heat.

Further, the periphery of the wall 12 of the chamber 10 may be partially housed or closed even if the three surfaces do not form the intra-wall space 21 as shown in the drawing. .
Further, the supply form of the conditioned air is not limited to that shown in the drawings, and any conditioned air can be introduced into the underfloor space 22 and can be led out from the ceiling space 22 side.

[0028]

As described above, according to the first to fifth aspects of the present invention, since safe and harmless air is used as the heat medium, there is no sense of air flow, there is no bias in the thermal sensation, and there is no temperature difference. It is possible to build a comfortable air-conditioning system with a uniform distribution, and to realize a human-friendly air-conditioning system required by the aging society.

As an air conditioning system corresponding to an aging society,
It is applicable to human-centered buildings such as houses, hospitals, health facilities for the elderly, housing complex, hotels, and recreation facilities. Since air is used as the heat medium, it is easier to control as compared with the conventional radiant cooling / heating apparatus, and there is no risk of dew condensation or water leakage unlike the conventional radiant cooling / heating apparatus. Since the skeleton and the room are surrounded by air-conditioning air in the form of an air curtain, the ceiling, wall surface, and floor that make up the room all become radiant heat radiation surfaces, so a vast surface area is provided compared to conventional radiant cooling and heating devices. Can be secured.

In particular, when the conditioned air is blown out to the indoor perimeter as in the second and the fourth aspects, it is excellent in the followability to the load fluctuation, the rise time during operation, and the indoor humidity adjustment. Can be demonstrated.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a longitudinal section of an embodiment according to the inventions of claims 2, 4 and 5. FIG.

FIG. 2 is an explanatory view showing a longitudinal section of a main part of FIG.

FIG. 3 is an explanatory view showing in longitudinal section a double in-floor outlet of conditioned air provided in the underfloor space in FIG.

4 is an explanatory diagram showing a plan view of a main part of FIG. 1. FIG.

[Explanation of symbols]

 1 Core 10 Room 11 Floor 12 Wall 13 Ceiling 14 Window Glass 15 Floor Outlet 16 Ceiling Surface Intake 20 Underfloor Space 21 In-wall Clearance 22 Ceiling Space 30 Indoor Perimeter Part

Claims (5)

[Claims] 1. A skeleton and a room are partitioned through an underfloor space, a gap in a wall and a ceiling space, and conditioned air is guided from the underfloor space to a suction port on the ceiling space side through the space between the skeleton and the room, An air radiant cooling / heating method, characterized in that the room is cooled and heated by radiant heat from the floor, walls and ceiling. 2. A skeleton and a room are partitioned by an underfloor space, a gap in the wall and a ceiling space, and a blowout port and a suction port are provided on the floor and ceiling on the window side, and conditioned air is diverged from the underfloor space to the skeleton and room. The air radiant cooling and heating method, characterized in that the air is guided to the inlet on the ceiling space side through the space and the window in the room, and the room is heated and cooled by the radiant heat from the floor, walls and ceiling and the radiant heat from the window. 3. A skeleton and a chamber installed in the skeleton,
An underfloor space formed on the floor side between the skeleton and the room, a space inside the wall formed on the wall side between the skeleton and the room, and a ceiling space formed on the ceiling side between the skeleton and the room And a double in-floor outlet for conditioned air provided in the underfloor space, an in-ceiling inlet provided in the ceiling space, and an air conditioner that connects the double-in-floor outlet and the in-ceiling inlet. An air radiation type heating and cooling device characterized by the above. 4. A skeleton and a chamber installed in the skeleton,
An underfloor space formed on the floor side between the skeleton and the room, a space inside the wall formed on the wall side between the skeleton and the room, and a ceiling space formed on the ceiling side between the skeleton and the room And a floor outlet formed on the floor on the window side of the room, a ceiling inlet formed on the ceiling of the room, a double floor outlet for conditioned air provided in the underfloor space, and provided in the ceiling space An air radiant cooling and heating device comprising an air intake in the ceiling and an air conditioner connecting the double floor outlet and the air intake in the ceiling. 5. The air radiant cooling and heating apparatus according to claim 3 or 4, wherein the double floor outlet is formed by providing an air conditioning air diffusion shield panel at an opening end of a pipe communicating with the air conditioning apparatus. An air radiation type heating and cooling device characterized by the above.