Vacuum heat collecting element with straight cylinder decompression air drying protector

Abstract

A vacuum heat collection element with a straight tube pressure-reducing air drying protector is formed through arranging a 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 pressure-reducing air drying protector comprises a heat power driving component with an interface in heat transmission connection with the inner glass tube in the heat collection element, and a heat transmission straight tube; the heat power driving component comprises a thermosensitive permanent magnet steel driving component, a bimetallic sheet driving component, a memory alloy driving component and a sylphon driving component. The vacuum heat collection element is characterized in that the heat transmission straight tube and the tail end of the inner glass tube are connected directly or are in low thermal resistance connection by a one-dimensional movable pair through a heat sink; the vacuum heat collection element can move forwards and backwards; and the outer end part of the vacuum heat collection element is matched with the inner surface of the tail end of the shade glass tube in shape. According to the invention, inner water vapor pressure of the heat pipe cannot surpass 2 barometric pressures through the usage of a low-power air drying protector; as a result, the vacuum heat collection element is high in reliability.

Description

technical field [0001] The invention relates to a vacuum heat collecting element with a straight cylinder decompression air drying protector. Background technique [0002] The vacuum heat collecting tube is provided with a vacuum heat insulation layer between its cover glass tube and the inner glass tube, which can manufacture a vacuum solar water heater that can also provide domestic hot water in winter. The solar water heater made of heat pipe vacuum heat collecting tube has the advantages of high energy efficiency ratio without water in the tube, conforms to the sanitary drinking water standard, and can work as usual if a single tube is damaged. therefore. The solar vacuum heat pipe water heater without water in the pipe will likely occupy more and more market share. [0003] The use of an integrated glass heat pipe has the advantages of being melted and sealed with the cover glass tube, the surface of the glass heat pipe can be directly made into an absorption film, le...

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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