硬X射线调制望远镜卫星深冷热管设计及试验研究  

Design and Experimental Study of Cryogenic Heat Pipe for HXMT Satellite

作　　者：崔丽萍[1] 苗建印[1] 赵欣[1] 周宇鹏[1] 范雨秾 李国广 李莉[1] CUI Liping;MIAO Jianyin;ZHAO Xin;ZHOU Yupeng;FAN Yunong;LI Guoguang;LI Li(Beijing Key Laboratory of Space Thermal Control Technology,Beijing Institute of Spacecraft System Engineering,Beijing 100094,China)

机构地区：[1]北京空间飞行器总体设计部,空间热控技术北京市重点实验室,北京100094

出　　处：《航天器工程》2018年第5期102-106,共5页Spacecraft Engineering

基　　金：国家重大航天工程。

摘　　要：针对硬X射线调制望远镜(HXMT)卫星低能探测器(CCD)的散热需求,开发了一种乙烷工质深冷槽道热管。在传热性能测试设备中,采用抽真空方式,对深冷热管的传热性能及最大热流密度进行试验。结果表明:所设计的乙烷工质深冷槽道热管在-80℃时最大传热能力不小于18W·m,热管最大传热温差3.2℃,满足低能探测器晶体的散热需求;深冷槽道热管设计过程中,应考虑气液剪切力对最大传热能力计算结果的影响。该设计可为其他工质深冷槽道热管的设计提供参考。In order to meet the heat dissipation requirement of the HXMT(hard X-ray modulation telescope)low energy detector,the cryogenic heat pipe whose working fluid is ethane is developed.In the heat transfer performance equipment,vacuum-pumping is adopted to conduct experiment on the heat transfer performance and maxium heat flux of the cryogenic heat pipe.Experimental results show that the maximum heat transfer capacity is not less than 18W·m at-80℃,the temperature difference of heat pipe is 3.2℃,which meets the requirement of low energy detector crystals.Furthermore,the influence of gas-liquid shear force should be considered during the calculation of maximum heat transfer capacity.The design provides reference for the design of other working medium cryogenic heat pipe.

关 键 词：硬X射线调制望远镜卫星 热管 深冷热管 乙烷 传热能力 

分 类 号：V474.1[航空宇航科学与技术—飞行器设计]