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Through-type all-glass vacuum heat-collecting pipe

A vacuum collector tube, all-glass technology, applied in solar collectors, components of solar collectors, solar collectors using working fluid, etc. low cost effect

Active Publication Date: 2017-07-28
徐阳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the solar vacuum heat collector tubes are exposed to high temperatures in the tube under conditions such as air drying, or when a high temperature difference is formed between the glass outer tube and the inner tube, its efficiency will decrease, and failures such as vacuum heat collector tube ruptures will easily occur.

Method used

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  • Through-type all-glass vacuum heat-collecting pipe
  • Through-type all-glass vacuum heat-collecting pipe
  • Through-type all-glass vacuum heat-collecting pipe

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Embodiment Construction

[0028] In the following description, the present invention is described with reference to various examples. One skilled in the art will recognize, however, that the various embodiments may be practiced without one or more of the specific details, or with other alternative and / or additional methods, materials, or components. In other instances, well-known structures, materials, or operations are not shown or described in detail so as not to obscure aspects of the various embodiments of the invention. Similarly, for purposes of explanation, specific quantities, materials and configurations are set forth in order to provide a thorough understanding of embodiments of the invention. However, the invention may be practiced without these specific details. Furthermore, it should be understood that the various embodiments shown in the drawings are illustrative representations and are not necessarily drawn to scale.

[0029] Such as figure 1 As shown, the corresponding relationship b...

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Abstract

A through-type all-glass vacuum heat-collecting pipe has an overheating protection structure and comprises an inner pipe, an outer pipe as well as a vacuum interlayer positioned between the inner pipe and the outer pipe; sunlight can penetrate through the outer pipe; a solar heat-collecting layer for absorbing solar radiation is arranged on the outer surface of the inner pipe or in the inner pipe; an adsorbing material capable of adsorbing gas is arranged in the vacuum interlayer; when the vacuum heat-collecting pipe is at the temperature below the set temperature in the pipe or within the set temperature difference between the inner pipe and the outer pipe, namely in a cold state, the adsorbing material adsorbs gas to maintain the adiabatic vacuum degree required by heat preservation of the vacuum heat-collecting pipe; and when the vacuum heat-collecting pipe reaches or exceeds the set temperature in the pipe or the set temperature difference between the inner pipe and the outer pipe, namely in a hot state, the adsorbing material is heated to release the adsorbed gas, so that the vacuum degree of the vacuum interlayer in the vacuum heat-collecting pipe is reduced.

Description

technical field [0001] The invention relates to a straight-through all-glass vacuum heat collecting tube. Background technique [0002] Solar vacuum heat collectors are an effective way to utilize solar heat. Its basic structure is usually composed of a glass outer tube with light transmission, an inner tube with a solar heat absorbing film, and a vacuum interlayer between the inner and outer tubes. The heat collecting tube has the technical characteristics of low cost, high efficiency and favorable popularization. However, when the solar vacuum heat collector tubes are exposed to high temperatures in the air, or when a high temperature difference is formed between the glass outer tube and the inner tube, the efficiency will decrease, and failures such as vacuum heat collector tube ruptures will easily occur. Contents of the invention [0003] The object of the present invention is to provide a straight-through all-glass vacuum heat collecting tube, which has a heat coll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/05F24J2/24F24J2/48F24S10/40F24S10/70
CPCF24S10/40F24S70/10Y02E10/44
Inventor 徐阳
Owner 徐阳
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