JPH04369331A - Radiation panel of radiation heating/cooling machine - Google Patents

Abstract

PURPOSE:To provide radiation heating/cooling machine radiation panel wherein its miniaturization is ensured by doubling a radiation surface area and surface temperature is averaged as a whole. CONSTITUTION:There are provided a heat radiation pipe 2 for absorbing or emitting far infrared rays from a surface by directing cold/hot water supplied from a heat source machine 1, and a reflection plate 3 disposed behind the heat radiation pipe 2 and absorbing or emitting far infrared rays frontally thereof. The heat radiation pipe 2 is extended in a jig-zag manner over the entire surface of the reflection plate 3, and a forward advancement part 2a and a backward advancement part 2b of the heat radiation pipe 2 are parallely disposed to each other.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to a radiant panel for an air conditioner or heater that is installed on a ceiling or wall surface, and absorbs or radiates far infrared rays from the surface by flowing cold and hot water supplied from a heat source device through a radiator tube. be.

0002

[Prior Art] In conventional radiant panels, the radiator tubes are simply exposed and supported by a mounting plate.
Of the far infrared rays emitted from the surface of the radiator tube, the portion toward the front is effectively used to heat the target space, but the portion toward the back is consumed to warm the space between the radiator tube and the mounting plate. It is not used for heating the original target space. Therefore, in order to secure the required heating and cooling capacity, it was necessary to increase the size of the radiant panel.

[0003] The temperature of hot water in the heat radiation tube decreases due to heat radiation, and the temperature of cold water increases due to heat absorption. However, in conventional heat radiation panels, the heat radiation tubes move from one end of the heat radiation panel to the other end. Since they are simply arranged in a straight line or in a meandering pattern, the temperature gradient between the inlet and the outlet of the heat dissipation panel is steep, and when the heat dissipation panel is viewed as a whole, the surface temperature is highly uneven.

0004

SUMMARY OF THE INVENTION Therefore, it is an object of the present invention to provide a radiant panel for a radiant air conditioner that can be downsized by doubling the radiant surface area and has an average surface temperature as a whole. .

[0005]

[Means for Solving the Problems] As explained below using the reference numerals in the attached drawings, the radiation panel according to the first invention emits far infrared rays from the surface by flowing cold and hot water supplied from a heat source device 1. It consists of a heat sink 2 that absorbs or emits far infrared rays, and a reflector 3 that is placed behind the heat sink 2 and absorbs or radiates far infrared rays toward the front.

[0006] The radiation panel according to the second invention has a heat source device 1.
A heat dissipation tube 2 that absorbs or radiates far infrared rays from its surface by flowing cold and hot water supplied from the heat dissipation tube 2, and a reflector 3 that is placed behind the heat dissipation tube 2 and absorbs or emits far infrared rays in the front direction.
The heat dissipation tube 2 is made to meander over the entire surface of the reflector plate 3, and the outward path portion 2a and return path portion 2b of the heat dissipation tube 2 are arranged parallel to each other.

[0007]

[Operation] In the first invention, the far infrared rays emitted from the front surface of the heat dissipation tube 2 directly head toward the target space. Far-infrared rays emitted from the rear surface of the heat dissipation tube 2 are reflected by the reflective plate 3 behind and directed toward the target space.

As shown in FIG. 3, during heating, the heat radiation pipe 2
The temperature of the hot water in the outgoing portion 2a is T1 at the entrance of the heat dissipation panel, T2 at the turning point 2c, and T1
>T2, the temperature curve slopes downward to the right. On the other hand, the temperature of the hot water in the return path 2b of the heat dissipation tube 2 is T2 at the turning point 2c, and T2 at the exit of the heat dissipation panel.
3 and T2 > T3, the temperature curve in this part slopes downward to the left.

In the second invention, the outgoing portion 2a and the returning portion 2
b are arranged in parallel, the temperature curve of the heat sink 2 as a whole is T4 [T4 = (T1 + T3)/2
] and T2. Therefore, the unevenness in the surface temperature of the radiant panel varies from [T1 - T3 ] to [T4 -
T2 ].

As shown in FIG. 4, during cooling, the heat sink 2
The temperature of the cold water in the outgoing portion 2a is T1 at the entrance of the heat dissipation panel, T2 at the turning point 2c, and T1
<T2, so the temperature curve slopes upward. On the other hand, the temperature of the cold water in the return path 2b of the heat dissipation tube 2 is T2 at the turning point 2c, and T2 at the exit of the heat dissipation panel.
3 and T2 < T3, the temperature curve in this part slopes upward to the left.

[0011] In the second invention, the outgoing portion 2a and the returning portion 2
b are arranged in parallel, the temperature curve of the heat sink 2 as a whole is T2 and T4 [T4 = (T1 + T3
)/2]. Therefore, the unevenness in the surface temperature of the radiation panel varies from [T1 - T3 ] to [T2 -
T4].

0012

[Embodiment] In the illustrated embodiment, the reflecting surface of the reflecting plate 3 is formed into a continuous, gentle V-shaped groove, and the outgoing portion 2a and the returning portion 2b of the heat dissipation tube 2 are arranged on the center line of each V-shaped groove. ing. The bent end portions of the heat dissipation tube 2 on both the left and right sides are supported by the reflector plate 3 by holders 4 and 5.

[0013]

As described above, in the first invention, since the reflector plate 3 that emits far infrared rays in the front direction is placed behind the heat sink 2, the far infrared rays radiated from the entire surface of the heat sink 1 can be prevented. It can be effectively used for heating the target space. That is, twice the radiation surface area is ensured compared to a conventional heat radiation panel without a reflector, and the radiation panel can be made smaller by that much.

In the second invention, the heat dissipation tube 2 is made to meander over the entire surface of the reflector plate 3, and the outward path portion 2a and return path portion 2b of the heat dissipation tube 2 are arranged parallel to each other, so that unevenness in surface temperature is prevented over the entire radiation panel. can be significantly reduced or eliminated, and even heating and cooling can be performed.

[Brief explanation of drawings]

FIG. 1 is a front view of a radiation panel according to an embodiment of the present invention.

FIG. 2 is an enlarged sectional view taken along line A-A in FIG. 1;

FIG. 3 is a graph showing a temperature curve of hot water during heating operation of the radiant panel.

FIG. 4 is a graph showing a temperature curve of cold water during cooling operation of the radiant panel.

[Explanation of symbols]

1 Heat source device for radiant air conditioning and heating equipment 2 Heat sink 2a　Outbound part 2b Return part 3 Reflector plate 4 Holder 5 Holder

Claims (2)

[Claims] 1. A heat dissipation tube 2 that absorbs or radiates far infrared rays from its surface by flowing cold and hot water supplied from a heat source device 1;
A radiant panel for a radiant air-conditioning/heating machine comprising a reflector plate 3 placed behind a radiator tube 2 and absorbing or emitting far infrared rays in the front direction. 2. A heat radiation tube 2 that absorbs or radiates far infrared rays from its surface by flowing cold and hot water supplied from the heat source device 1;
It consists of a reflecting plate 3 that is placed behind the heat dissipating tube 2 and absorbs or emits far infrared rays in the front direction.
A radiant panel of a radiant air-conditioning/heating machine in which a and a return portion 2b are arranged parallel to each other.