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Self-cleaning solar vacuum pipe

A solar energy and vacuum tube technology, applied in the directions of solar thermal energy, solar thermal power generation, solar thermal collectors, etc., can solve the problem of affecting the heat collection efficiency and service life of vacuum tubes, reducing the heat exchange efficiency between the endothermic coating and water, and reducing the heat exchange efficiency. and other problems, to achieve the effect of improving the descaling effect, reducing the degree of complexity and reducing energy consumption

Active Publication Date: 2019-01-25
夏进秋
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The disadvantage of vacuum tube solar collectors is that the heat exchange efficiency between the heat-absorbing coating in the solar vacuum tube and water is greatly reduced after a period of use
The reason is that the impurities in tap water become scale and accumulate on the inner wall of the solar vacuum tube after being heated, so when the scale on the inner wall of the solar vacuum tube accumulates to a certain extent, the heat exchange efficiency between the heat-absorbing coating and water will be reduced, and the scale is too thick When the heat-absorbing coating on the solar vacuum tube cannot be dissipated in time due to heat, the heat-absorbing coating will fall off under such a high temperature state for a long time, thus affecting the heat collection efficiency and service life of the vacuum tube

Method used

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Embodiment 2

[0023] refer to figure 2 , the difference from Embodiment 1 is that the mobile device includes a ball screw 10 coaxially fixedly connected to the inner bottom of the inner tube 2, the side wall of the ball screw 10 is provided with a slide chamber 12 along its axial direction, and the slide chamber 12 The inner sliding seal is connected with a magnetic sliding plug 5, and the upper end of the ball screw 10 is provided with a vent hole communicating with the sliding chamber 12, and a waterproof and breathable membrane is installed in the vent hole, and a screw nut 11 is installed on the ball screw 10. And the lead screw nut 11 is attracted to the magnetic sliding plug 5 , and the end of the connector 6 away from the metal scraper ring 3 is fixedly connected to the side wall of the lead screw nut 11 .

[0024] In this embodiment, when the vaporized low-boiling evaporating liquid 9 pushes the magnetic slider 5 to move, it drives the screw nut 11 to move up through the attraction...

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Abstract

The invention discloses a self-cleaning solar vacuum pipe. The solar vacuum pipe is composed of an inner pipe body and an outer pipe body, a liquid storage cavity is formed in the inner bottom of theinner pipe body and contains an evaporating liquid with a low boiling point, and a metal scraping ring which is always in contact with the inner wall of the inner pipe body is slidably connected intothe inner pipe body; a moving device used for pushing the metal scraping ring to move is installed in the inner pipe body and can axially move along the inner pipe body, and the metal scraping ring isfixedly connected to the moving device through a connector. The self-cleaning solar vacuum pipe is novel in concept, incrustation scale on the inner wall of the solar vacuum pipe can be removed, andthe heating efficiency and service life of the solar vacuum pipe are ensured.

Description

technical field [0001] The invention relates to the technical field of solar vacuum tubes, in particular to a self-cleaning solar vacuum tube. Background technique [0002] The disadvantage of the vacuum tube solar collector is that the heat exchange efficiency between the heat-absorbing coating in the solar vacuum tube and water is greatly reduced after a period of use. The reason is that the impurities in tap water become scale and accumulate on the inner wall of the solar vacuum tube after being heated, so when the scale on the inner wall of the solar vacuum tube accumulates to a certain extent, the heat exchange efficiency between the heat-absorbing coating and water will be reduced, and the scale is too thick Sometimes the heat-absorbing coating on the solar vacuum tube cannot be dissipated in time due to heat, and under such a high temperature state for a long time, the heat-absorbing coating will fall off, thereby affecting the heat collection efficiency and service l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24S10/40F24S10/70F24S40/20
CPCY02E10/44
Inventor 田希良
Owner 夏进秋
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