中国空间科学技术

中国空间科学技术

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喷射式气氮调温系统

韩启文,裴一飞,赵立军,黄本诚   

  1. 北京卫星环境工程研究所,北京卫星环境工程研究所,北京卫星环境工程研究所,北京卫星环境工程研究所 北京100029 ,北京100029 ,北京100029 ,北京100029
  • 发布日期:2002-06-25

Temperature-Adjusting System With Jetting Liquid Nitrogen

Han Qiwen Pei Yifei Zhao Lijun Huang Bencheng (Beijing Institute of Spacecraft Environment Engineering,Beijing 100029)   

  • Online:2002-06-25

被引次数

3

摘要： 气氮调温系统是空间环境模拟器中为航天器进行热真空、热平衡试验的关键系统之一。它可使热沉温度在 -1 0 0℃～ + 1 0 0℃之间连续可调 ,并能任意定点。采用喷射式气氮调温系统 ,与液氮储槽式冷却器调温系统、液氮温度热沉加红外加热笼系统相比 ,可降低能耗 ,节约经费。大型空间环境模拟器中由于热沉的热惯性较大以及各支路温度存在均匀性等问题 ,大型空间模拟器设备要应用喷射式气氮调温系统存在一定难度。KM6大型空间模拟器喷射式气氮调温系统在研制中结合 KM6实际和试验要求。调试和使用结果证明这一系统满足试验要求 ,同时也表明该系统在同一领域达到了国际同类设备的水平

关键词: 氮, 气体喷射, 温度控制, 空间环境仿真

Abstract: Temperature adjusting system is an important system of space environment simulator to carry out the T/V & T/B tests for spacecraft. It can adjust thermal shroud temperature continuously between -100℃ and +100℃, and stabilize the temperature at any point within the range. Compared with such temperature adjusting equipments as cooler with liquid nitrogen tank or thermal shroud at liquid nitrogen temperature with infrared heating cage, the temperature adjusting system with jetting liquid nitrogen can reduce energy consumption and decrease expenditure. It is difficult to use the system in large environmental simulator for its thermal lag and unevenness between different heat sink branches. The jetting liquid nitrogen system fits the facts and requirements of KM6 in design . The results of temperature adjusting system with jetting liquid nitrogen of a large space environment simulator indicate that it has achieved comparative level in the same field in the world.