JPH0448413Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention relates to a radiant panel for air conditioning.
Between the plate-like bodies, cold air or warm air from the inlet is circulated in the direction along the plate surface direction of the plate-like bodies and discharged from the outlet, and as the air flows, the air flows through the plate-like bodies. The present invention relates to an air conditioning radiant panel that radiates cold or hot heat from the outer surface of one heat radiating plate toward an air-conditioned space.

[Conventional technology]

Conventionally, radiant panels for air conditioning were generally of the type that circulated cold or hot water through channels formed inside the panel-shaped body and radiated cold or warm heat from the outside of the panel-shaped body. Because there is a concern about water leakage into the target space, we developed a type as described above that circulates cold or hot air between plate-shaped bodies and radiates heat from the outer surface of one of the plate-shaped bodies.

[Problem that the invention attempts to solve]

However, even if cold air or hot air is circulated between plate-shaped bodies in a direction along the surface direction of the plate-shaped bodies, turbulence in the airflow and uneven wind speed may occur in the air flowing between the plate-shaped bodies. It is unavoidable that this occurs to a greater or lesser extent, and due to such turbulence in the airflow and non-uniform wind speed, the thermal conductivity of the heat radiating plate becomes non-uniform in the surface direction. There was a problem in that the temperature distribution on the outer surface of the heat radiating plate, that is, the heat radiating surface, was uneven, resulting in uneven heat radiation of cold and hot heat to the air-conditioned space.

In particular, when radiant cooling is performed by circulating cold air, condensation may form on the low temperature portion of the heat radiating surface due to the uneven temperature distribution on the heat radiating surface as described above. However, when the temperature of the circulating cold air is increased to prevent such condensation, there is a problem in that the overall cooling radiation effect is reduced.

The purpose of the present invention is to uniformize the temperature distribution on the heat radiating surface of a type of radiant panel that circulates cold or hot air through rational improvements.

[Means for solving problems]

The characteristic configuration of the air conditioning radiant panel according to the present invention is as follows:
Between the plate-like bodies, cold air or warm air from the inlet is circulated in the direction along the plate surface direction of the plate-like bodies and discharged from the outlet, and as the air flows, the air flows through the plate-like bodies. In an air-conditioning radiant panel that radiates cold or hot heat from the outer surface of one heat radiating plate-like body toward an air-conditioned space, the space between the plate-like bodies is stretched in the direction of the plate surface of the plate-like bodies. The perforated plate-like body is partitioned into a circulating air retention area on the side of the heat radiating plate-like body and a circulating air flowing area facing the inlet and the outlet on the other plate-like side, Its actions and effects are as follows.

[Effect]

In other words, in the circulating air flow area, which is one of the partitioned spaces, cold air or hot air from the inlet flows in the direction along the plate surface direction of the plate-shaped body and is discharged from the outlet, and in the flow process, the airflow Although turbulence and non-uniform wind speed occur, in the distribution air retention area on the side of the heat radiation plate, which is the other partitioned space, the air flows through the perforated plate stretched in the direction of the plate surface of the plate. Since ventilation is provided between the air flow area and the air flow area, the influence of the flow wind dynamic pressure in the flow air flow area is reduced, and air flow turbulence and non-uniformity in wind speed are effectively suppressed.

[Effect of idea]

As a result, it is possible to prevent the temperature distribution on the heat radiation surface from becoming uneven due to turbulence in the airflow or non-uniform wind speed, and it is possible to effectively equalize the temperature distribution on the heat radiation surface. It has become possible to uniformize the radiation of cold and hot heat to the space to be air-conditioned, and it has become possible to greatly improve radiation air conditioning performance.

In particular, in the case of radiant cooling, while lowering the temperature of the circulating cold air and increasing the overall cooling and heat radiation effect, it is possible to prevent local condensation from forming by making the temperature distribution of the heat radiation surface uniform as described above. As a result, it has become possible to improve the practicality of radiant cooling using cold air circulation.

〔Example〕

Next, an example will be described.

As shown in FIGS. 1 and 2, a plurality of radiation panels 2 that radiate cold heat from one plate surface a to the air-conditioned space 1 as the cold air flows through the internal flow path f are connected to the air-conditioned space 1. A supply air duct 4 that supplies cold air from the cold air generator 3 to the radiant panel 2, and a return air duct 5 that returns used cold air discharged from the radiant panel 2 to the cold air generator 3.
are branched and connected to each of the radiation panels 2, thereby configuring a ceiling radiation type cooling device.

6 in the figure is a grid corresponding to the ceiling in the air-conditioned space 1, and the radiant cold heat from the radiant panel 2 is
The air is supplied to the air-conditioned space 1 through this grid 6.

As shown in FIGS. 3 and 4, each radiation panel 2 is a flat rectangular box, and cool air is distributed between the upper and lower plates 7 and 8 of the box. It is made to flow in the direction along the plate surface direction.

In the figure, 9 is an inlet connected to the supply air duct 4, and 10 is an outlet connected to the return air duct 5. The cold air supplied from the inlet 9 is passed through an internal partition 11 into a U-shaped The liquid flows through the internal flow path f formed in the curved flow path in the direction along the plate surface and is discharged from the discharge port 10.

Further, between the upper plate 7 and the lower plate 8, there is a punching plate 12 stretched in the direction of the surface of the lower plate 8, which is a heat radiation plate.
It is divided into a circulating air retention area A on the heat radiation plate (lower plate) 8 side and a circulating air flow area B on the upper plate 7 side, and the circulating air flowing area B directs the cold air to the plate surface. The inlet 9 and the outlet 10 are opened to communicate with the circulating air flow area B of both the partition areas A and B so as to form a substantial internal flow path f that allows the air to flow in the direction along the flow.

In other words, due to the above-mentioned partition structure using the punching plate 12, in the circulating air retention area A facing the heat radiation plate 8, large airflow turbulence such as that occurring in the circulating air flowing area B, which is the substantial internal flow path f, can be avoided. By preventing nonuniformity of wind speed, the heat transfer coefficient to the heat radiation plate 8 is made uniform in the plate surface direction, and the temperature distribution on the outer surface of the heat radiation plate 8, that is, the heat radiation surface a is improved. By making it uniform, cooling and heat can be radiated uniformly to the air-conditioned space 1.

Note that 13 in the figure is a heat insulating material.

[Another example]

Next, another example will be listed.

(a) As shown in FIGS. 5 and 6, a honeycomb-like body 12' is used as a perforated plate-like body that partitions the circulating air retention area A and the circulating air flow area B, and the honeycomb-shaped body 12' The lower end surface of the heat radiation plate 8 may be placed close to the heat radiation plate 8.

(b) Various materials can be used as the porous plate-like body, such as a punched plate, a honeycomb-like body, a wire mesh, etc., and the material thereof may be determined as appropriate.

(c) As shown in Figures 7 and 8, the circulating air flow area B is defined as the air-conditioned air outlet 1 for the air-conditioned space 1.
4 so that part or all of the air supplied to the radiation panel 2 can be blown out into the air-conditioned space 1.

(d) As shown in FIGS. 8 and 9, the heat radiation plate 8 in the radiation panel 2 may also be used as a ceiling surface forming member in the air-conditioned space 1.

(e) The present invention can be applied to both cooling radiant panels that circulate cold air and heating radiant panels that circulate warm air.

(f) The radiant panel according to the present invention is not limited to the ceiling-mounted type, and its installation form is not restricted.

Incidentally, although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

1 to 4 show embodiments of the present invention,
Figure 1 is a side view of the air conditioning equipment, Figure 2 is a plan view of the same,
FIG. 3 is a partially cutaway perspective view of the radiation panel, and FIG. 4 is an enlarged sectional view of the same portion. 5 and 6 are partially broken perspective views and partially enlarged sectional views showing another embodiment, and FIGS. 7, 8, and 9 are sectional views showing other different embodiments, respectively. It is. 1... Space to be air conditioned, 7... Plate-shaped body, 8... Plate-shaped body for heat radiation, 9... Inlet, 10... Outlet,
12... Porous plate-like body, 14... Air outlet, A... Circulating air retention area, B... Circulating air flow area.

Claims (1)

[Claims for Utility Model Registration] 1 Cold air or hot air from the inlet 9 is passed between the plate-like bodies 7 and 8 in a direction along the surface direction of the plate-like bodies 7 and 8, and the discharge port 10 An air conditioning radiant panel that radiates cold or warm heat from the outer surface of one of the heat radiating plate bodies 8 of the plate bodies 7 and 8 toward the air-conditioned space 1 as the heat radiates from the plate body 8. and the plate-like bodies 7, 8
A perforated plate-like body 12 stretched in the direction of the plate-like surfaces of the plate-like bodies 7 and 8 connects the plate-like bodies 7 and 8 to the circulating air retention area A on the side of the heat radiation plate-like body 8 and the plate-like body 7 on the other side. A radiant panel for air conditioning is partitioned into a circulating air flow area B facing the inlet 9 and the outlet 10 on the side thereof. 2. The air conditioning radiant panel according to claim 1, wherein the porous plate-like body 12 is a punched plate. 3. The air conditioning radiant panel according to claim 1, wherein the porous plate-like body 12 is a net body. 4. The air conditioning radiant panel according to claim 1, wherein the porous plate-like body 12 is a honeycomb-like body. 5. The air conditioning radiant panel according to claim 4, wherein one end surface of the honeycomb-like body constituting the porous plate-like body 12 is close to the heat radiating plate-like body 8. 6. Convert the circulating air flow area B to the air-conditioned space 1.
The air conditioning radiant panel according to any one of claims 1 to 5, which is connected to an air conditioning air outlet 14 for the air conditioner. 7. The air conditioning radiant panel according to any one of claims 1 to 6, wherein the heat radiating plate 8 is also used as a member for forming a ceiling surface in the air conditioned space 1. .