基于气相色谱法的电推进航天器氙气泄漏检测系统  

A leak detection system for the electric propulsion spacecraft after xenon being filled

作　　者：窦仁超[1] 喻新发[1] 孙立臣[1] 洪晓鹏[1] 刘兴悦[1] 闫荣鑫[1] 任国华[1] 杨定魁[1] DOU Renchao;YU Xinfa;SUN Lichen;HONG Xiaopeng;LIU Xingyue;YAN Rongxin;REN Guohua;YANG Dingkui(Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China)

机构地区：[1]北京卫星环境工程研究所,北京100094

出　　处：《航天器环境工程》2016年第4期446-450,共5页Spacecraft Environment Engineering

基　　金：北京卫星环境工程研究所自主研发项目"电推进系统氙气充装与检漏技术"(编号:YY-BZ(WM)-2013-02)

摘　　要：为了能够对电推进航天器加注后的泄漏进行检测，对氙气泄漏检测方法和关键技术进行研究，研制了一套基于气相色谱法的氙气泄漏检测系统。试验结果表明，氙气体积分数在1×10-7～5×10-4之间时，系统可以定性定量判断氙气的真实泄漏量（1.0×10-5～5.0×10-2Pa·m3·s-1）；而当氙气体积分数超过5×10-4时，则应定性判断电推进系统有大泄漏（泄漏量＞10-2Pa·m3·s-1）。检测系统能够满足电推进航天器加注后泄漏检测任务的要求。In order to test the leakage of the electric propulsion spacecraft after the xenon being filled, theleak detection methods and the key technologies are studied. A leak detection system is developed based on thegas chromatography (GC). It is verified by the experiments to be reliable. The result shows that the leak detectionsystem could detect the leak of qualitative analysis and quantitative analysis for the leak of spacecraft (1.0×10-5～5.0×10-2 Pa·m3·s-1), when the range of the volume fraction of xenon is 1×10-7～5×10-4 in the air. If the volume fractionof xenon exceeded 5×10-4, it could confirm that the spacecraft had a huge leak (the leakage>10-2 Pa·m3·s-1). Thissystem could satisfy the leak detection requirements of the electric propulsion spacecraft.

关 键 词：气相色谱法 氙气 泄漏检测 电推进航天器 

分 类 号：TB774[一般工业技术—真空技术]