关于一种高纯铝冷链传热性能的试验研究  

Research on heat transfer characteristics of high purity aluminum cold strap

作　　者：田大成 练敏隆[1] 叶翔[2] 孙立达[2] 刘欣彤 王莉娟 王乃亮 赵密广[3] Tian Dacheng;Lian Minlong;Ye Xiang;Sun Lida;Liu Xintong;Wang Lijuan;Wang Nailiang;Zhao Miguang(Beijing Institue of Space Mechanics&Electricity,Beijing 100094,China;Shanghai Institute of Satellite Engineering,Shanghai 201109,China;Key Laboratory of Technology on Space Energy Conversion,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100091,China)

机构地区：[1]北京空间机电研究所,北京100094 [2]上海卫星工程研究所,上海201109 [3]中国科学院理化技术研究所,中国科学院空间功热转换技术重点实验室,北京100091

出　　处：《低温工程》2022年第3期33-36,共4页Cryogenics

摘　　要：针对一种高纯铝冷链进行了设计,并对其传热能力开展了试验研究。搭建了试验验证平台及测试系统,实际测试了结构两端的温度差,并对该结构的传热特性进行了计算,同时对该结构力学特性进行测试。得出结论:该类耦合结构热导率在40 K温区可以达到950 W/m·K,适用于远距离布置和重量要求较高的场合。Cold strap made of high purity aluminum was designed and its heat transfer ability was studied experimentally.The experimental verification platform and testing system wereset up.The temperature difference between the two ends of the structure was tested.The heat transfer characteristics of the structure was calculated.And the mechanical properties of the structure were tested.It is concluded that the thermal conductivity of this type of coupling structure can reach 950 W/(m·K)in the temperature range of 40 K,which is suitable for long-distance layout and satisfies the lightweight requirements.

关 键 词：铝冷链 40K 热导率 

分 类 号：TB65[一般工业技术—制冷工程]