Vacuum heat collection element with middle piece pressure-reducing air drying protector

Abstract

A vacuum heat collection element with a middle piece pressure-reducing air drying protector is formed by arranging a middle piece pressure-reducing air drying protector in a vacuum thermal insulating layer between the tail end of a shade glass tube of a full-glass vacuum heat collection pipe and the tail end of an inner glass tube, wherein the middle piece pressure-reducing air drying protector comprises more than one air drying protection heat transmission channel; the air drying protective heat transmission channel comprises a heat dissipation paster, a heat sink, a heat power driving component with an interface in heat transmission connection with the inner glass tube, and a middle piece rotationally connected with or produced integrally with the heat power driving component; the air drying protection heat transmission channel has two stable states, namely an open heat conduction state in which the middle piece is in heat transmission connection with the heat sink and the heat dissipation paster simultaneously, and a close heat insulation state in which the middle piece is not in heat transmission connection with the heat dissipation paster and the heat sink simultaneously. The vacuum heat collection element is characterized in that the heat dissipation paster comprises a low thermal resistance connection interface connected with the shade glass tube round end inner surface, and a heat transmission interface connected with the middle piece. The element ensures that the pressure of a 70-watt heat collection element does not surpass 2 barometric pressures by using 10-watt heat dissipation power, and is high in reliability.

Description

Technical field [0001] The invention relates to a vacuum heat collecting element with a middle-piece decompression air-sun protector. Background technique [0002] The vacuum heat collecting tube is provided with a vacuum insulation layer between the cover glass tube and the inner glass tube, which can be used to manufacture vacuum solar water heaters that can provide domestic hot water in winter. Solar water heaters made of heat pipe vacuum collector tubes have the advantages of high energy efficiency ratio without water in the tube, compliance with sanitary drinking water standards, and single tube damage. therefore. Solar vacuum heat pipe water heaters without water inside the tube will likely occupy more and more market shares. [0003] The use of an integrated glass heat pipe has the advantages of being able to be fused with the cover glass pipe, the surface of the glass heat pipe can be directly made of an absorption film, and there are few heat transfer links, and the wat...

AI Technical Summary

Problems solved by technology

Since this patent is not specifically aimed at the heat-collecting elements of gravity heat pipes, it is not very targeted; the bimetal sheet thermal energy conversion drive used in it is originally not consistent with the product, and has the ability to return to its original shape after repeated heat deformation It will be reduced again, and the operating point setting, control variable input, comparison, energy conversion and energy supply and execution functions related to the control system undertaken by it are far from being able to work normally and effectively due to the impact on the accuracy of the possible 20-year design of the heat collecting element. life

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