Working fluid high-level accumulation, decompression, air drying protection, all-glass vacuum heat pipe heat collection device

Abstract

A working medium high-position gathering pressure-reduction heat collection device for protecting an all-glass vacuum heat pipe from stagnation comprises a pressure-reduction stagnation protecting all-glass vacuum heat pipe heat collection component and a heat insulation water tank, wherein the pressure-reduction stagnation protecting all-glass vacuum heat pipe heat collection component is produced by arranging a stagnation protector inside a vacuum heat insulation layer which is positioned at the tail end of an all-glass vacuum heat pipe heat collection component; the stagnation protector comprises a heating power driving device and a heat transfer straight cylinder, and is characterized in that the heat transfer straight cylinder is connected with the bottom end of the hot end of a heat pipe directly or through a heat sink by adopting a one-dimensional sliding pair structure at a low heat resistance; the shape of the outer end part of the heat transfer straight cylinder coincides with that of an inner surface of a tail end of a shield glass tube; and the heat pipe comprises a sparse core mesh formed by a plurality of slim capillary liquid absorbing cores 2-10 mm in width; According to the invention, the low power stagnation protector is adopted to ensure that the water vapor pressure inside the heat pipe is never larger than two times of the barometric pressure; and the sparse core mesh is arranged inside the heat pipe to shorten the starting time of the heat pipe to over 10 minutes from over 140 minutes of an original bare tube, so that the time of heat collection can be increased by 1 hour everyday in winter.

Description

technical field [0001] The invention relates to an all-glass vacuum heat pipe heat collection device for high-level accumulation of working fluid, decompression and air drying protection. Background technique [0002] Chinese invention patent 2009101951003 anti-drying all-glass vacuum heat pipe heat collecting element discloses an air-drying protected all-glass vacuum heat pipe heat collecting element, by setting a controllable heat transfer channel between the absorber of the vacuum heat collecting element and the cover glass tube The controllable heat transfer channel is composed of a movable heat transfer part and a driving part, and is characterized in that it contains a thermodynamic energy conversion driving part connected with a vacuum heat collecting element absorber with low thermal resistance. 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 ...

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

Images