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VACUUM ›› 2018, Vol. 55 ›› Issue (5): 38-41.doi: 10.13385/j.cnki.vacuum.2018.05.08

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Research on distributing law of Xenon in big accumulation chamber

SUN Li-zhi, YAN Rong-xin, LI Tian-ye, JIA Rui-jin, LI Zheng, SUN Li-chen, WANG Yong, WANG Jian, ZHANG Qiang   

  1. Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China
  • Received:2018-03-26 Online:2018-09-25 Published:2018-10-15

Abstract: Based on the CFD simulation and an assumption that a tiny gas mass in the lateral of a big accumulation chamber was used to simulate the sampling Xenon, the distributing law under the forced convection condition was studied. The results indicate that, under the forced convection condition, the distributing law absolutely depends on the flow field of the fan built in the big accumulation chamber and the Xenon concentration in the big accumulation chamber can be less than 3% after 220s under forced convection condition. The conclusion here may provide technical support for the operation of the non -vacuum accumulation leak detection method.

Key words: non-vacuum, leak detection, big accumulation chamber, Xenon

CLC Number: 

  • TB42
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