Working medium filling device and method of loop circuit heat pipe at medium and low temperature

Abstract

The invention discloses a working medium filling device and a method of a loop circuit heat pipe at a medium and low temperature region. The device comprises an inversion steel bottle of gas and liquid working media, four valves, a transparent quartz glass tube, a vacuum machine set and a loop circuit heat pipe, and is characterized in that a working medium liquid in the inversion steel bottle flows into the quartz glass tube under the pushing of saturated vapor pressure; the controlling of the working medium flow rate and flow speed can be realized through regulating a first valve; and when the working liquid in the quartz glass tube reaches the requirement of calculation, the first valve is closed, a second valve and a fourth valve are open, and the working liquid in the quartz glass tube flows into the loop circuit heat pipe under the assistance of gravity. The method is convenient to control the working media amount accurately which is required to be filled, through the liquid filling mode of the inversion steel bottle, because of the gravity assistance of the working medium liquid, the working medium liquid can be caused to flow in the loop circuit heat pipe without additional driving, to a certain extent, the time required in reducing the temperature of the loop circuit heat pipe is shortened.

Description

technical field [0001] The invention relates to a heat pipe working medium filling device and method, in particular to a working medium filling device and method for a loop heat pipe with a working temperature range between 100-200K. Background technique [0002] There are two common methods for filling the loop heat pipe with working fluid: normal temperature filling and low temperature filling. Normal temperature filling is suitable for normal temperature loop heat pipes and low temperature loop heat pipes with relatively high working medium saturation pressure at normal temperature. The low-temperature filling is mainly used for low-temperature loop heat pipes. It cools the working fluid gas that has entered the tube body, and then fills in new working fluid gas until the filled working fluid meets our pre-calculated requirements. Filling often needs to repeatedly charge working fluid into the heat pipe repeatedly. [0003] Generally, working fluids working in the tempe...

AI Technical Summary

Problems solved by technology

It solves the problem of insufficient filler quality caused by normal temperature filling and repeated filling caused by low temperature filling. Using this method, the required working quality can be filled at one time.

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