Enhanced heat radiation paint, application thereof and radiation heat exchange device using the same

Abstract

The invention relates to an enhanced heat radiation paint, application thereof and a radiation heat exchange device using the same. The enhanced heat radiation paint comprises an enhanced material component, a black material component and an adhesive; and the enhanced material component is silicon and / or boron. The enhanced heat radiation paint can be coated on the surface of a metal material to be used as an enhanced heat radiation coating. The radiation heat exchange device comprises a first metal radiation plate and a heat exchange core plate composed of a second metal radiation plate and aheat transfer channel. The heat exchange core plate is parallel to the first metal radiation plate and has a minimum interval of 1-3mm; and enhanced heat radiation enhancing coatings are arranged onthe surfaces of the heat exchange core plate and the first metal radiation plate. The paint can form a coating on the surface of a metal material, and the absorptivity and emissivity of the surface ofthe metal material can be greatly improved; the radiation heat exchange device can be used for refrigerating and / or heating, can be used for refrigerating in a humid and hot environment without condensation, and is high in refrigerating capacity.

Description

technical field [0001] The invention relates to the field of radiation heat exchange, in particular to an enhanced heat radiation coating and its application, and a radiation heat exchange device using the coating. Background technique [0002] Metal radiation heat exchange plates in the prior art generally have the following types: [0003] The heat exchange copper tube and the metal radiation heat transfer plate are in direct contact, and the heat exchange copper tube and the metal radiation plate are connected by heat conduction. This mode is mostly used in air-conditioning occasions. The heat exchange copper pipes in northern Europe use 12°C cold water, and the surface temperature of the metal radiant plate is 20°C, but the metal radiant plate surface has a cold line of 14°C, which is still possible in northern Europe most of the time. But in a relatively hot and humid environment, 14°C is already lower than the dew point temperature, and the metal radiation plate will...

AI Technical Summary

Problems solved by technology

But in a relatively hot and humid environment, 14°C is already lower than the dew point temperature, and the metal radiation plate will condense

In order to avoid condensation, cold water at 16°C is used. The temperature of the contact part between the metal radiant plate surface and the heat exchange copper tube is only 18°C, and the temperature of the plate surface without contact rises to 24°C. The cooling capacity of the metal radiant plate is very low, so When used in air conditioners in areas with large heat and humidity loads, this high-temperature water metal radiant panel can only be used as a supplement to ordinary air conditioners

[0004] Other improved metal radiant panel structures, in order to solve the cold uniformity of the metal radiant panel surface, TROX presses the heat exchange copper tube into a Groove-shaped metal base, and then bond the metal base to the metal plate with thermally conductive adhesive, but in the heating condition, the thermally conductive adhesive loses its viscosity after baking and cannot conduct heat; so the TROX manual states "Cannot supply heat "

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