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Collective thermal-arrest pipe with double layer glasses

A double-glazed, heat-pipe technology, applied in the field of solar energy applications, can solve problems such as easy gas leakage, rupture, and safety impact

Inactive Publication Date: 2006-03-15
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This heat collecting tube has three main disadvantages: 1) The connection between the metal heat pipe and the glass tube is unreliable, and it is easy to leak or even rupture after a long time or under strong heat, which reduces the vacuum and affects safety; 2) due to the heat pipe and the inverted V The gap between shapes, about 9% of sunlight returns to the atmosphere after secondary reflection; 3) It is not easy for large-scale industrial production, and the cost is high

Method used

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  • Collective thermal-arrest pipe with double layer glasses
  • Collective thermal-arrest pipe with double layer glasses

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Experimental program
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Embodiment Construction

[0007] Referring to the accompanying drawings, the structure is that the inner and outer layers of glass tubes 6 and 4 form a vacuum glass sleeve, the bottom of the concentrating plate 1 is W-shaped, the concentrating plate 1 is inserted into the cavity in the inner tube of the vacuum glass sleeve, and the surface is coated with The heating section of the heat pipe 7 of the selective absorption coating 2 is placed at the focal line of the condensing plate 1 , and a plug 3 is used to seal the space between the heat pipe 7 and the vacuum glass sleeve.

[0008] Working process: sunlight passes through the vacuum glass casing, after being reflected and focused by the concentrating plate 1, it is absorbed by the selective absorbing coating 2 on the surface of the heating section of the heat pipe 7, heating the working fluid in the heat pipe 7, and the working fluid in the tube is vaporized to reach The cooling section of the heat pipe 7 transfers heat to the cooling substance outsid...

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Abstract

In the invention, a vacuum glass double-tube is formed via an internal and external double-glazing tube in which there is getter to reach and hold the 10 to the minus fifth pa vacuum degree in the tube. The light-focusing board can take the shape of W and is inserted to the cavity in the internal tube of the vacuum glass double-tube. The heating section of the heat tube with the surface coated with selective absorbing coat is set at the focal line of the light-focusing board. A plug is used for encloding the port between the heat tube and the vacuum glass double-tube.

Description

technical field [0001] The invention relates to a double-layer glass heat pipe-type focusing heat collecting pipe which heats the working medium in the heat pipe after focusing sunlight to make the heat pipe work at a relatively high temperature, and belongs to the technical field of solar energy application. Background technique [0002] The heat-pipe-type focusing heat-collecting tube currently used in the market adopts a single-layer glass tube, which is connected with the metal heat pipe by Kovar, and the inside of the glass tube is evacuated to prevent heat loss; There is a gap, and the centerline of the heat pipe, the inverted V-shaped top line and the centerline of the glass tube are in one plane. This heat collecting tube has three main disadvantages: 1) The connection between the metal heat pipe and the glass tube is unreliable, and it is easy to leak or even rupture after a long time or under strong heat, which reduces the vacuum degree and affects safety; 2) due t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/05F24J2/32F24S10/40F24S10/95
CPCY02E10/44
Inventor 王军张耀明刘德有
Owner HOHAI UNIV
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