乙烯低温环路热管与制冷机耦合部件小型化研究  

Study on miniaturization of coupling components of ethylene cryogenic loop heat pipe and cryocooler

作　　者：李骏婷 赵晨阳 蒋珍华[1,2] 李南茜 赵文一 吴亦农 Li Junting;Zhao Chenyang;Jiang Zhenhua;Li Nanxi;Zhao Wenyi;Wu Yinong(Shanghai Institute of Technical Physics,Chinese Academy of Science,Shanghai 200083,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院上海技术物理研究所,上海200083 [2]中国科学院大学,北京100049

出　　处：《低温工程》2025年第1期43-50,64,共9页Cryogenics

基　　金：上海技术物理研究所创新专项(CX-492)。

摘　　要：为有效减小制冷机冷头耦合部件的尺寸,推进低温环路热管(CLHP)的空间应用,搭建了3台不同制冷机耦合部件实验样机,通过开展乙烯温区的低温真空实验,在保证稳态传热距离和最大传热量不受影响的前提下,研究耦合部件次蒸发器储液器和主次冷凝器小型化结构对CLHP启动过程和稳态传热性能的影响。结果表明:小型化后的样机,能在170—210 K温区且传输距离为1.2 m时达到50 W最大传热量。冷端部件小型化后的启动时间将减小,主要是由于热容的减小和冷凝换热能力的提高;稳态运行时的传热热阻无明显变化,制冷机的输入功率减小;增大次蒸发器辅助加热量能减小启动时间和稳态传热热阻。To reduce the size of the cryocooler coupling parts and promote the space application of cryogenic loop heat pipe(CLHP),three experimental prototypes of different coupling components were set up.The effect of miniaturized structure on the supercritical startup process and steady-state heat transfer performance of CLHP was studied under the premise that steady-state heat transfer distance and maximum heat transfer are not affected through cryogenic temperature vacuum experiment about ethylene-CLHP.The results show that the miniaturized cold-end components can maintain the maximum heat transfer of 50 W when the transmission distance is 1.2 m in the temperature zone of 170-210 K.The startup time will be reduced during startup,which is mainly due to the reduction of heat capacity and the improvement of condensing heat transfer capacity.The thermal resistance does not change significantly during steady-state operation,and the input power of the refrigerator decreases.Increasing the auxiliary heating of the secondary evaporator can reduce the start-up time and steady heat transfer resistance.

关 键 词：低温环路热管 制冷机耦合 小型化 次蒸发器储液器 冷凝器 

分 类 号：TB663[一般工业技术—制冷工程]