JPH0886461A - Radiation air conditioning system - Google Patents

Abstract

PURPOSE: To provide a radiation air conditioning system for which construction is easy and which is capable of preventing condensation on an indoor side panel surface. CONSTITUTION: There are provided a ceiling panel member 14 comprising a moisture permeable material and permitting water on a room side 10 to penetrate to a dehumidifying air passage 13 provided on a back surface side 12 and a Peltier device 15 for forming a temperature gradient such that temperature of the ceiling panel member 14 on the side of the room 10 is lower than that on the back surface side 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiant cooling / heating system using an indoor panel such as a ceiling surface.

[0002]

2. Description of the Related Art As a conventional radiation cooling / heating system of this type, for example, Japanese Patent Laid-Open No. 4-2681 shown in FIGS.
Those described in Japanese Patent No. 39, etc. are known.

In such a radiant cooling and heating system, a ceiling material 1 having a predetermined air permeability is provided on an indoor ceiling portion of a building.
And a throw-out plywood 2 are provided to form a ceiling duct 3. The ducts 8 of the air conditioner 7 are connected to the inlet 5 and the outlet 6 of the flow path 4 of the ceiling duct 3.

In the conventional radiant cooling and heating system thus constructed, the circulating flow flowing through the ceiling duct 3 flows into the room due to the pressure difference between the room and the flow path 4.
Corresponding to this, high-humidity air in the room is caused to flow out to perform dehumidification during cooling.

As another radiant cooling / heating system of this type, a system for evaporating drain water by utilizing heat generated by a Peltier element which is an electronic cooling element described in JP-A-63-17324, The radiant cooling and heating system described in page 241 of "Recommendation for ceiling heating and cooling" by Seizo Hayama, published by Chikuma Shobo Co., Ltd. is known.

[0006]

However, in such a conventional radiant cooling and heating system, there is a problem that the air conditioner 7 and the ducts 8 ... Must be arranged on the rear surface side of the ceiling, and the construction is not easy. It was

Therefore, an object of the present invention is to provide a radiant cooling / heating system which is easy to construct and can prevent dew condensation on the panel surface on the indoor side.

[0008]

In order to solve the above-mentioned problems, according to a first aspect of the present invention, a dehumidifying air flow made of a moisture-permeable material and provided with moisture on the indoor side on the back side is provided. The radiant cooling and heating system is characterized by having a panel material that permeates the passage and a thermoelectric cooling element that forms a temperature gradient so that the temperature inside the panel material is lower than the temperature inside the panel.

[0009]

[Operation] According to the claim 1 having such a configuration,
If a temperature gradient is formed in the panel material by the electronic cooling element such that the temperature inside the panel material is lower than the temperature inside the rear surface side, the humidity inside the panel material is higher than the humidity inside the back surface. It becomes humidity.

The moisture in the panel material moves from the indoor side to the back side of the panel material due to the difference in the relative humidity. Therefore, the moisture adhering to the indoor side of the panel material is dehumidified air provided on the back side. It is guided to the flow path and discharged.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show an embodiment of the present invention. The same or equivalent parts as those of the conventional example are designated by the same reference numerals.

First, in the radiant cooling and heating system of this embodiment, the ceiling portion 11 of the indoor side 10 of the building 9 is made of a moisture-permeable material such as foamed concrete so that moisture in the indoor side 10 can be absorbed. Ceiling panel material 14 as a panel material that permeates into the dehumidifying air flow path 13 provided on the back side 12
And a Peltier element 15 as a plurality of electronic cooling elements that form a temperature gradient so that the temperature of the interior side 10 of the ceiling panel material 14 is lower than the temperature of the back side 12 thereof. ing.

Among these, in the ceiling panel material 14,
A mesh-shaped heat transfer surface material 16 is provided for transmitting moisture from the indoor side 10 to the back surface side 11 and contacting each of the Peltier elements 15 ... And cooling the indoor surface 10 of the ceiling panel material 14 substantially uniformly. , Are provided along the 10 inner surfaces.

In the Peltier element 15, the cooling surface 15a that contacts the mesh-shaped heat transfer surface member 16 is embedded up to the vicinity of the indoor side 10 of the ceiling panel member 14, and
A heat radiating surface 15b is provided so as to project from the back surface side 12 into the dehumidifying air passage 13.

Each Peltier element 15 has an electric wiring 17
Is connected to the sensor controller 18. The sensor controller 18 is connected to a temperature sensor 19 arranged at a substantially central position of the ceiling portion 11 and a power source 20.

When the temperature detected by the temperature sensor 19 exceeds a predetermined temperature, a forward current is supplied to each of the Peltier elements 15 ... The surface 15a is cooled to heat the heat radiating surface 15b, and when a predetermined temperature lower than the predetermined temperature is reached, a reverse current is supplied to each of the Peltier elements 15 ... By doing so, the cooling surface 15a is heated to heat the indoor side 10.

The dehumidifying air flow path 13 communicates with the outdoor side 20 of the building 9 through an intake port 21 and an exhaust port 22, and the intake port 2 is connected to the intake port 21 side.
A blower fan 23 that blows the outside air introduced from 1 to the exhaust port 22 is provided.

The blower fan 23 is connected to the sensor controller 18 by electric wiring 24. Then, when the temperature exceeds a predetermined temperature, a current is supplied through the electric wiring 24 to drive the blower fan 23.

Further, a heat insulating material 25 is provided on the upper surface of the dehumidifying air passage 13.

Next, the operation of this embodiment will be described.

The temperature sensor 19 constantly detects the temperature inside the room 10 and sends a temperature signal of the detected temperature to the sensor controller 18. According to the detected temperature, in the sensor controller 18, when a preset temperature such as 25 degrees Celsius is exceeded, each Peltier element 15 ... Supply forward current. In each Peltier element 15 ...
This energization causes the Peltier effect, cooling the cooling surface 15a and heating the heat radiation surface 15b.

Each cooling surface 15 of each Peltier element 15 ...
a ... by the mesh-shaped heat transfer surface material 1 of the ceiling panel material 14
6 is cooled substantially uniformly over the entire surface. Further, since the heat radiating surfaces 15b are provided so as to project from the back surface side 12 into the dehumidifying air flow path 13, the temperature of the indoor side 10 becomes lower than the temperature of the back surface side 12. A temperature gradient is formed.

Therefore, the indoor side 10 of the ceiling panel material 14 is
Is higher than the humidity on the back side 12.

As shown by the white arrow in FIG. 2, the moisture in the ceiling panel material 14 moves from the indoor side 10 to the back surface side 12 of the ceiling panel material 14 due to the difference in the relative humidity. Moisture that adheres to the indoor side of 14 is guided to the dehumidifying air flow path 13 provided on the rear surface side 12 and discharged.

In the dehumidifying air flow path 13, since the outside air is circulated from the intake port 21 to the exhaust port 22 by the drive of the blower fan 23, the dehumidified water is exhausted from the exhaust port 22 to the outside. The air is discharged to the outside 20 together with the outside air.

Therefore, the dehumidification efficiency can be improved simply by installing a simple ventilation fan 23 in the dehumidifying air flow path 13 without providing an air conditioner or a large-scale dehumidifying device as in the conventional case. The ceiling panel member 14 can be prevented from being condensed on the indoor side 10 panel surface.

When the temperature reaches another predetermined temperature lower than the predetermined temperature, the cooling surface 15a is heated by supplying a reverse current to each of the Peltier elements 15 ... Through the electric wiring 17. Then, the indoor side 10 is heated. Therefore, since heating can be performed using the same configuration,
Furthermore, construction is easy.

In addition, in the radiant cooling / heating system of this embodiment, the mesh-shaped heat transfer surface material 16 is in contact with the cooling surface 15a of each Peltier device 15 so that the ceiling panel material 14 is provided.
Since it is arranged in the
Thus, the indoor side 10 of the ceiling panel material 14 can be cooled substantially uniformly. Therefore, the manufacturing cost can be suppressed.

Further, since the mesh-shaped heat transfer surface member 16 improves the surface strength of the ceiling panel member 14, the weight of the ceiling panel member 14 can be reduced and the supporting structure can be carried out by a simple method. .

Moreover, the mesh-shaped heat transfer surface material 16 is
Since moisture movement in the ceiling panel material 14 is not hindered, moisture can be smoothly discharged.

Although the embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment, and the present invention can be applied even if there is a design change or the like without departing from the scope of the invention. include.

For example, in the above-mentioned embodiment, the case where the ceiling panel material is used as the panel material has been described as an example.
Not limited to this, it is needless to say that the present invention may be applied to a panel material such as a wall surface panel material that constitutes a side wall surface on the indoor side 10 of the building 9 or a floor panel material that constitutes a floor surface.

[0034]

As described above, according to the first aspect of the present invention, the temperature of the inside of the panel material becomes lower than the temperature of the back surface of the panel material by the electronic cooling element. When the temperature gradient is formed, the humidity on the indoor side of the panel material becomes higher than the humidity on the back side.

The moisture in the panel material moves from the indoor side to the back side of the panel material due to the difference in the relative humidity, so that the moisture adhering to the indoor side of the panel material is dehumidifying air provided on the back side. It is guided to the flow path and discharged.

Therefore, the dehumidification efficiency can be improved by simply installing a simple ventilation fan or the like in the dehumidifying air flow path without providing an air conditioner as in the conventional case. It is possible to provide a radiant cooling and heating system that is easy to operate and can prevent dew condensation on the panel surface on the indoor side.

[Brief description of drawings]

FIG. 1 shows a radiant cooling / heating system according to an embodiment of the present invention,
It is sectional drawing of the building explaining the whole structure.

FIG. 2 is a cross-sectional view of essential parts showing a radiant cooling / heating system of the same embodiment.

FIG. 3 is a perspective view illustrating a conventional radiant cooling / heating system.

FIG. 4 is a cross-sectional view illustrating a conventional radiant cooling / heating system.

[Explanation of Codes] 10 Indoor Side 12 Back Side 13 Dehumidifying Air Flow Path 14 Ceiling Panel Material (Panel Material) 15 Peltier Element (Electronic Cooling Element)

Claims (1)

[Claims] 1. A panel material which is made of a moisture permeable material and which allows moisture inside the room to permeate into a dehumidifying air channel provided on the back side, and the temperature of the inside of the panel material on the back side of the panel material. A radiant cooling and heating system, comprising: an electronic cooling element that forms a temperature gradient so that the temperature becomes lower than that of the radiant cooling and heating system.