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Glass vacuum tube of solar heat collector

A glass vacuum tube and heat collector technology, applied in the field of heat collector tubes

Inactive Publication Date: 2009-04-22
周婕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Black heat-absorbing particles are installed in the inner glass tube

Method used

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  • Glass vacuum tube of solar heat collector
  • Glass vacuum tube of solar heat collector

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Experimental program
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Embodiment Construction

[0008] The cross-sectional view of the heat collecting tube shown in Fig. 1, the inner glass tube (1) and the outer glass tube (2) of the heat collecting tube (4) are coaxially sleeved, and the inner and outer glass tube openings at both ends are melt-sealed to form a straight-through type, One end has a vacuum nozzle that protrudes outward. After the interlayer of the inner and outer tubes is evacuated through the vacuum nozzle, the seal of the vacuum nozzle is heated and softened, and the sealed vacuum nozzle is squeezed inward to form an inward convex. Vacuum lottery. Black heat-absorbing particles (3) are housed in the inner glass tube (1).

[0009] Figure 2 shows the structural diagram of the heat collecting tube connected to the water tank, which is composed of a water inlet tank (5), a water storage tank (6) and a heat collecting tube (4). One end of the heat collecting tube (4) is inserted into the water tank, and the other end is inserted into the water tank. In the ...

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Abstract

The invention discloses a glass vacuum tube of a solar heat collector, and the glass vacuum tube consists of two layers of transparent glass. The internal and external glass tube nozzles of a thermal-collecting tube are sealed by fusing, and the vacuum state exists in an interlayer. Black heat absorption particles are filled in the internal glass tube of the heat-collecting pipe. When in use, the black heat absorption particles absorb the sunlight and the optical energy is converted into heat energy; the heat absorption area is increased, thus improving the heat-collecting efficiency of the heat-collecting tube greatly.

Description

technical field [0001] The invention relates to a heat collecting tube, mainly a solar heat collector glass vacuum tube which directly uses the glass vacuum tube to collect heat Background technique [0002] At present, most of the existing solar collector glass vacuum tubes on the market are composed of two layers of transparent glass tubes coaxially stacked, and the inner surface of the inner glass tube is coated with a layer of selective absorption black body surface. The surface can absorb sunlight and convert light energy into heat energy. The disadvantage is that the process of coating the blackbody surface on the glass surface is complicated and costly, and the heat-absorbing surface area of ​​the blackbody surface is limited, and the thermal efficiency is low. The heat collection efficiency of the heat pipe will be greatly reduced. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a solar collector glass v...

Claims

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Application Information

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IPC IPC(8): F24J2/05F24S10/40
CPCY02E10/44
Inventor 周婕
Owner 周婕