A phase change heat pipe

Abstract

A phase change heat pipe includes a metal shell. The metal shell is provided with a heat pipe cavity and a phase change material cavity that are isolated from each other. The inside of the heat pipe cavity is circular, and a capillary is provided on the circular inner wall. Structure, the space of the capillary structure is filled with liquid working fluid, and other spaces in the heat pipe cavity are filled with gaseous working fluid; the phase change material cavity is filled with phase change material, and one end of the metal shell is filled with the heat pipe working fluid. and phase change material, and the other end is closed after filling the heat pipe working medium and phase change material. The integrated phase change heat pipe can not only achieve high-efficiency heat transmission, but also has a large heat capacity, effectively suppress temperature fluctuations, and can absorb more heat in a short period of time, producing an obvious heat storage effect.

Description

A kind of phase change heat pipe technical field The invention belongs to the technical field of thermal control, in particular to a heat pipe integrated with a phase change device and a heat pipe, It can be used in spacecraft such as satellites. Background technique Along with the development of aerospace industry, heat pipe is in the thermal control of spacecraft with its light weight, efficient heat transfer efficiency has been widely used. However, with the development of spacecraft technology, the current thermal control system of some satellite models, in addition to requiring thermal control The product has a strong heat transfer capacity similar to a heat pipe, and at the same time requires a large heat capacity to effectively overcome the The temperature fluctuation of the controlled object caused by the change of the power consumption of the equipment inside the device or the change of the external heat flow, and the satisfaction of the controlled object T...

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Problems solved by technology

There is no technology or product report integrating heat pipe and phase change device both at home and abroad

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