Adjustable evaporation pressure heat pipe

Abstract

The invention discloses a regulating evaporation pressure type heat pipe, and relates to a heat pipe which comprises a shell, a corrugated pipe temperature wrap, a heat pipe working medium and a temperature sensing medium. When the temperature of a heat pipe evaporation section rises, the corrugated pipe temperature wrap can increase the evaporation pressure of the heat pipe working medium, the evaporation temperature of the heat pipe working medium is increased, the evaporation speed of the heat pipe working medium in a liquid absorption core of the heat pipe evaporation section is decreased, the accident of failure of the heat pipe due to drying of the liquid absorption core of the evaporation section is avoided, and the heat pipe safely runs when thermal fluid temperature fluctuates. When the temperature of the heat pipe evaporation section is reduced, the corrugated pipe temperature wrap can reduce the evaporation pressure of the heat pipe working medium, the evaporation temperature of the heat pipe working medium is reduced, the evaporation speed of the heat pipe working medium in the liquid absorption core of the heat pipe evaporation section is increased, and the heat exchange efficiency of the heat pipe is improved.

Description

technical field [0001] The invention is an evaporating pressure regulating heat pipe, which relates to a heat pipe, in particular to a heat pipe which adopts a corrugated tube temperature sensing package to regulate the evaporating pressure of the working medium of the heat pipe. Background technique [0002] The heat pipe is composed of a tube shell, a liquid-absorbing core and a heat pipe working medium. The working section of the heat pipe is divided into three parts: the evaporation section, the adiabatic section and the condensation section. When the evaporating section absorbs the heat of the hot fluid, the heat passes through the shell to evaporate the working medium of the heat pipe soaked in the liquid-absorbing core, and the steam of the working medium of the heat pipe flows to the condensing section under the action of the pressure difference formed between the evaporating section and the condensing section, and the cold fluid The shell absorbs the heat of the wor...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortcoming that when the temperature fluctuation of the thermal fluid causes the temperature of the evaporation section of the heat pipe to be higher than the design temperature, the ordinary heat pipe is prone to capillary limit and boiling limit, which will cause the temperature of the heat pipe shell to rise sharply, and even burn the heat pipe. When the temperature of the heat pipe evaporation section rises, it can increase the pressure of the inner cavity of the heat pipe, that is, increase the evaporation pressure of the heat pipe working medium, and then increase the evaporation temperature of the heat pipe working medium, slow down the evaporation speed of the heat pipe working medium in the liquid-absorbing core of the heat pipe evaporation section, and avoid Evaporating pressure-adjusted heat pipes for heat pipe failure accidents due to dryness of the liquid-absorbing wick in the evaporating section

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