A capillary pump loop heat pipe capable of working in outer space and its working method

Abstract

The invention discloses a capillary pump loop heat pipe with an outer space working capability and a working method. The heat pipe comprises a main evaporator, a main radiation heat dissipation plate,a steam pipeline, a liquid phase pipeline, a liquid storage chamber, an adjusting chamber, an auxiliary evaporator, an auxiliary radiation heat dissipation plate, a main liquid phase pipeline valve,a main steam valve and an auxiliary steam valve; the main evaporator comprises a liquid phase channel area, a liquid absorption core area, a steam channel area an outer pipe wall and the like; the liquid absorption core comprises an evaporation liquid absorption core and a heat insulation liquid absorption core, wherein the evaporation liquid absorption core and the heat insulation liquid absorption core are provided with different materials and equivalent pore diameters; the starting of the auxiliary evaporator is optimized through the squeezing effect of the steam before starting, the auxiliary radiation heat dissipation plate and the auxiliary evaporator are used for leading out liquid-phase working medium with bubbles in the main evaporator and eliminating the bubbles, the problem of heat leakage in the stable operation stage is solved, so that the operation stability of the heat pipe is improved; the liquid storage chamber is used for separating the liquid storage area and the adjusting area, so that the adjusting sensitivity is improved, and the energy consumption is reduced; and the heat pipe structure has a wide practical prospect in the field of external space heat dissipation.

Description

technical field [0001] The invention relates to a space cooling technology, which is suitable for heat transfer in an outer space environment without the participation of gaseous media such as air in weightlessness, and specifically relates to a capillary pump circuit heat pipe capable of working in outer space and a working method. Background technique [0002] With the development of space technology, the energy consumption of devices working in space tends to be high-power, and the working time tends to be long-term, which is accompanied by greater energy demand, and no matter what form of energy, it will eventually have to Leaving the space device in the form of heat, if the heat cannot be dissipated in time, it will inevitably lead to an increase in the temperature of the heat-generating element and its surroundings, causing irreversible damage to the working element. Since there is no air convection in space and no external matter conducts heat, the only way to dissipa...

AI Technical Summary

Problems solved by technology

[0006] Capillary pump loop heat pipes have many advantages, but traditional capillary pump heat pipes still have defects: heat leakage of the evaporator leads to a decrease in heat transfer capacity or even deterioration of heat transfer; the contradiction between high capillary force and high permeability on the pore size requirements; the start-up process with apparent overheating

Images