文章旨在建立环路热管的地面实验平台,模拟环路热管在太空轨道运行的热环境。首先建立了地面实验舱的物理模型,对其如何实现在地面模拟太空中该环路热管的热环境进行了热分析计算,其次确定了满足环路热管轨道运行最冷工况和最热工况下的实验舱的壁面温度,最后对实现该轨道环境所需要的壁面绝热材料、制冷剂、制冷设备进行了选择,初步完成了实验平台的热设计。计算结果表明,在同时考虑舱内对流和辐射换热的条件下,要实现空间热边界条件,实验舱内舱的壁温要保证在-62.1~-10.9℃之间变化。 The article aims to establish a ground experimental platform for loop heat pipes to simulate the thermal environment in which loop heat pipes operate in space orbit. First of all, the physical model of the ground test chamber was established and how to realize the thermal analysis of the thermal environment of the loop heat pipe in the space simulated space. Secondly, the thermal performance of the loop heat pipe track running in the coldest condition and the hottest condition The temperature of the wall of the experimental chamber underneath is selected. Finally, the wall insulation material, refrigerant and refrigeration equipment required for realizing the orbital environment are selected, and the thermal design of the experimental platform is basically completed. The calculation results show that the wall temperature of the experimental cabin should be guaranteed to change from -62.1 to -10.9 ℃ in order to realize the thermal boundary conditions under both the convection and radiation heat transfer in the cabin.