JPH0529819B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a radiation absorption and radiation type cooling and heating device using air as a heat medium, and in particular, to a radiation absorption and radiation type cooling and heating device that uses air as a heat medium. This relates to heating and cooling equipment.

[Conventional technology]

FIG. 3 is a sectional view of the vicinity of the air chamber in a conventional radiation cooling and heating device.

One surface of the air chamber 1 is a radiant heat transfer surface 2a, and this surface also serves as the ceiling surface of the ceiling board 2.

For cold and hot air, follow arrow a from cold and hot air supply duct 3.
As shown in FIG.
While flowing along the inner surface 2b of the air, the air exchanges heat with the ceiling plate/radiant heat transfer plate 2 by convection heat transfer, and then flows back through the cold/hot air return duct 4 as shown by the arrow b.

[Problem to be solved by the invention]

In a radiation cooling/heating system equipped with a conventional air chamber 1 having the above configuration, the flow of cold and hot air in the air chamber 1 is not controlled, and the convection heat transfer surface 2b inside the air chamber 1 is not controlled. (i) The amount of heat exchanged on the convection heat transfer surface 2b is not sufficient.

(ii) The temperature distribution of the ceiling plate/radiant heat transfer plate 2 is uneven, and the efficiency of radiation absorption and heat radiation is poor.

The present invention has been made in view of the above-mentioned circumstances, and has the following features: (i) the amount of heat transferred and received between the convection heat transfer surface of the radiant heat transfer plate and the cold and hot air is large; and (ii) the temperature of the radiant heat transfer plate is The purpose of the present invention is to provide a radiant heating and cooling device that has uniform distribution and has good radiation absorption and heat radiation efficiency.

[Means to solve the problem]

In order to achieve the above object, the radiant heating and cooling device of the present invention includes an air chamber having a radiant heat transfer surface;
a supply duct for sending cold or hot air into the air chamber, and a conduit connected to the supply duct and installed within the air chamber; and , The above-mentioned conduit is provided with a pore or slit so as to face the radiant heat transfer surface.

[Effect]

According to the above configuration, a. The cold and hot air supplied into the air chamber is guided by the conduit and ejected from the pores or slits, so that it is uniformly distributed over the entire surface of the radiant heat exchanger plate, which is the ceiling plate. The temperature distribution is uniform.
Therefore, the efficiency of radiation absorption and heat radiation is good.

b The cold and hot air ejected from the above conduit through the pores or slits is blown against the inner surface (convection heat transfer surface) of the radiant heat transfer plate, and a large amount of heat is transferred and received by forced convection, so that the heat is transferred. Good thermal efficiency.

〔Example〕

1 and 2 show the vicinity of the air chamber 1 in one embodiment of the radiant heating and cooling device according to the present invention, and FIG. 1 is a partially cutaway perspective view;
FIG. 2 is a sectional view.

The air chamber 1, ceiling plate/radiant heat exchanger plate 2, supply duct 3, and return duct 4, which are given the same drawing reference numbers as in FIG. 3 depicting the conventional example, are the same or similar to those in the conventional example. It is a constituent member of

Next, components improved by applying the present invention will be explained.

A conduit 5 is arranged in the air chamber 1 in parallel with the ceiling plate/radiant heat transfer plate 2.

The pores 6 facing the radiant heat transfer surface 2a are arranged in the conduit 5 described above. When carrying out the present invention, slits (not shown) may be provided in place of the pores 6 described above.

The above conduit 5 is connected to the supply duct 3.
The cold and hot air supplied from the supply duct 3 is guided to the conduit 5 and distributed evenly to various parts of the air chamber 1, and is passed through the radiant heat exchanger plate 2 through the pores (or slits not shown) 6. It is blown onto the convection heat transfer surface 2b as shown by the arrow c, and highly efficient convection heat transfer is forcibly performed.

〔Effect of the invention〕

As explained above, according to the radiant heating and cooling device of the present invention, (i) the amount of heat transferred and received between the convection heat transfer surface of the radiant heat transfer plate and the cold and hot air is large; Excellent practical effects can be obtained in that the temperature distribution is uniform, and the temperature distribution of the radiant heat exchanger plate is also uniform, resulting in good radiation absorption and heat radiation efficiency.

[Brief explanation of drawings]

1 and 2 show the vicinity of the air chamber in one embodiment of the radiant heating and cooling device according to the present invention, FIG. 1 is a partially cutaway perspective view, and FIG. 2 is a sectional view. . FIG. 3 is a sectional view of a conventional air chamber. 1...Air chamber, 2...Ceiling plate and radiant heat transfer plate,
2a...Ceiling surface and radiation heat transfer surface, 2b...Convection heat transfer surface,
3... Supply duct, 4... Return duct, 5...
Conduit, 6... Pore.

Claims (1)

[Scope of Claims] 1. A radiant heating and cooling device comprising an air chamber having a radiant heat transfer surface and a cold/warm air supply duct, which is installed in the air chamber and connected to the cold/warm air supply duct. A radiant heating and cooling device characterized in that the conduit comprises: a conduit; and pores or slits arranged in a conduit wall facing the radiant heat transfer surface.