6 W@80 K空间同轴脉管制冷机设计与实验研究  

Design and experimental study of 6 W@80 K space coaxial vascular tube cryocooler

作　　者：王冲聪 庄昌佩 闫春杰[1] 罗新奎 许国太[1] 何嘉华 屈方杰 Wang Chongcong;Zhuang Changpei;Yan Chunjie;Luo Xinkui;Xu Guotai;He Jiahua;Qu Fangjie(Science and Technology on Vacuum Technology and Physics Laboratory,Lanzhou Institute of Physics,Lanzhou 730000,China)

机构地区：[1]兰州空间技术物理研究所真空技术与物理重点实验室,兰州730000

出　　处：《低温工程》2024年第2期1-7,43,共8页Cryogenics

基　　金：国家自然科学基金项目(51976086);真空技术与物理重点实验室基金项目(6142207210201)。

摘　　要：针对某空间红外载荷需求,基于Sage平台搭建了同轴脉管制冷机整机模型,根据仿真结果对冷头结构参数进行了设计计算。在此基础上,利用实验方法探究了回热器填充方式、惯性管组合方式、充气压力、输入功率、冷头方向对制冷机性能的影响,并与仿真结果比较,两者吻合度较高。研制成功的脉管制冷机整机质量为3.5 kg,输入功率150 W时,无负荷制冷温度为39.74 K,可获得7.23 W@80 K的冷量,整机相对卡诺效率13.26%,在空间用同轴脉管制冷机中处于先进水平。According to the requirement of infrared load in a certain space mission,a model of coaxial pulse tube refrigerator was built based on the Sage platform,and the structural parameters of the cold head were designed and calculated based on the simulation results.The effects of filling method of regenerator,inertance tube combination,inflation pressure,input electrical power,and cold head direction on the performance of the refrigerator was explored using experimental methods.Comparing the experimental results with the simulation results,there is a high degree of agreement between the simulation and experiment result.The successfully developed coaxial pulse tube refrigerator for space use is at an advanced level among similar refrigerators,and its performance parameters are as follows:the total mass is 3.5 kg,the input power is 150 W,the no-load refrigeration temperature is 39.74 K,and the cooling capacity is 7.23 W@80 K.The relative efficiency of the pulse tube refrigerator to Carnot is 13.26%.

关 键 词：空间 80 K 同轴脉管 高效 制冷机 

分 类 号：TB651[一般工业技术—制冷工程]