Novel solar heat collection pipe with built-in heat absorber
A technology of solar heat collection tubes and heat absorbers, applied in the field of solar heat collection, can solve the problems of small heat transfer area of heat absorbers, low turbulence intensity of working medium, short water flow channels, etc., to reduce radiation heat loss and realize modularization Design and assembly, the effect of reducing convective heat loss
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[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0029] Such as figure 2 As shown, the solar collector tube of the present invention includes a heat absorber 1, and the outer surface of the heat absorber 1 is coated with a black paint coating 2 for absorbing projected solar radiation energy. There are heat transfer medium 3 on both sides of the heat absorber 1 inside and outside, which can increase the heat transfer area between the heat transfer medium 3 and the heat absorber 1 . There is a narrow air layer or a vacuum between the inner glass sleeve 4 and the outer glass sleeve 5, which can effectively reduce the convective heat loss between the inner glass sleeve 4 and the outer glass sleeve 5. The selective permeable layer 6 is designed on the outer surface of the ...
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