Double phase change heat transfer element and cooling and heat dissipation device

Abstract

The invention provides a double phase change heat transfer element which comprises a sealed heat exchange pipe, wherein the sealed heat exchange pipe is internally partially vacuum; a heat absorption end of the sealed heat exchange pipe is filled with a liquid working medium; the volume of the working medium is less than that of the heat exchange pipe; a partition plate is arranged at the periphery of a part close to the middle of the heat exchange pipe; and an atomization system is arranged at the external part of a heat release end of the heat exchange pipe. The invention further provides a cooling and heat dissipation device using the double phase change heat transfer element to perform heat exchange. The cooling and heat dissipation device is characterized in that one end of the double phase change heat transfer element is placed in a fluid requiring heat dissipation and cooling, and exchanges heat with the working medium in the heat exchange pipe; the working medium in the heat exchange pipe undergoes phase change evaporation after absorbing the heat, and reaches the other end of the heat exchange pipe to release the heat; the released heat is subjected to heat exchange with the outside of the heat exchange pipe; the phase change heat exchange occurs outside the heat exchange pipe through rapid evaporation of an atomization wetting surface due to heat absorption; and through the two times of different phase change heat exchange inside and outside the heat exchange pipe, the purpose of cooling by bringing away the heat quickly is achieved. Compared with the prior art, with the adoption of the double phase change heat transfer element, a significant strengthened heat transfer effect is exerted.

Description

technical field [0001] The invention relates to a heat exchange element, in particular to a dual-phase change heat transfer element including a phase change heat transfer of working fluid inside a heat exchange tube and a phase change outside the tube to enhance heat transfer, and a heat transfer element used for process gas, liquid or heating element cooling cooling device. Background technique [0002] At present, the cooling and heat dissipation of low-temperature gases, liquids, and heating elements in the industry usually adopts the heat exchange method. The heat exchange in the range of low temperature and small temperature difference usually requires an enlarged heat transfer area, and also changes the structural form of the heat exchange tube, such as Channel pipes, threaded pipes, etc. in order to achieve the purpose of improving heat transfer efficiency, or direct spray cooling, consume a large amount of coolant, etc., cannot quickly cool down and dissipate heat co...

AI Technical Summary

Problems solved by technology

[0002] At present, the cooling and heat dissipation of low-temperature gases, liquids, and heating elements in the industry usually adopts the heat exchange method. The heat exchange in the range of low temperature and small temperature difference usually requires an enlarged heat transfer area, and also changes the structural form of the heat exchange tube, such as Channel pipes, threaded pipes, etc. in order to achieve the purpose of improving heat transfer efficiency, or direct spray cooling, consume a large amount of coolant, etc., cannot quickly cool down and dissipate heat conveniently and effectively

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