Beijing Institute of Spacecraft System Engineering

He, Jiang

Mo, Qing

Ding, Ting

Lian, Hongkui

Mi, Min

Sun, Funan

Li, Jingtuzhi

Wang, Shuai

Liu, Dongxiao

Wang, Lu

Lv, Wei

Miao, Jianyin

Li, Lei

Man, Guanglong

Hongxing Zhang

Lei Li

Shuai Wang

Lu Wang

Jiang He

Guoguang Li

Wei Lv

Ting Ding

Guanglong Man

Jingtuzhi Li

Dongxiao Liu

Qing Mo

Jinyin Huang

Jianyin Miao

Min Mi

Funan Sun

Hongkui Lian

The present disclosure provides a positive-pressure-withstanding high-power flat evaporator, processing methods thereof and a flat loop heat pipe including the evaporator. The evaporator includes a housing, and reinforcing ribs and a capillary wick which are positioned inside the housing, and the arrangement of the reinforcing ribs can ensure that the strength of the whole evaporator is capable of withstanding positive pressure. The capillary wick is composed of four parts, namely, an evaporating wick, a heat insulating wick, a sealing wick and a transfer wick. Through the large permeability of the transfer wick, liquid supply with low flow resistance can be realized, the heat transfer capability of the loop heat pipe is greatly improved, and the problems of long liquid supply path and large flow resistance caused by a large-area evaporator are solved.

Positive-pressure-withstanding high-power flat evaporator, processing methods thereof and flat loop heat pipe based on evaporator

A hot-press sintering method to prepare a loop heat pipe evaporator includes: putting a shell of the evaporator into a mould, uniformly and compactly filling corresponding positions in the mould with material powders of an evaporation core, a heat insulation core and a transmission core, applying a pressure high enough to tightly fit the evaporation core and the transmission core to the shell at corresponding sintering temperatures of powder materials for the evaporation core and the transmission core, carrying out hot-press sintering for molding, carrying out cooling after metallurgically bonding the powder materials of the evaporation core and the transmission core, and carrying out demolding to obtain the loop heat pipe evaporator, wherein the mould is provided with corresponding structures shaped like steam channels on positions where the evaporation core is provided with the steam channels.

Preparation method of loop heat pipe evaporator

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Beijing, China

Hongxing Zhang