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VACUUM ›› 2022, Vol. 59 ›› Issue (2): 21-25.doi: 10.13385/j.cnki.vacuum.2022.02.05

• Measurement and Control • Previous Articles     Next Articles

Application of Helium Leak Detecting in Printed Circuit Heat Exchanger

SUN Peng-yuan, XUN Hua-bao, FU Wen, DONG Sheng-chao, XU Zhe   

  1. Luoyang Ship Material Research Institute, Luoyang 471000, China
  • Received:2021-03-10 Online:2022-03-25 Published:2022-04-14

Abstract: In this paper, according to the structural characteristics and tightness requirement of printed circuit heat exchanger, the leak detection scheme of printed circuit heat exchanger is established through the selection of leakage detection method, leakage rate index setting and leakage rate calculation. Based on the leak detection scheme, helium leak detecting of the actual printed circuit heat exchangers was completed,and the measured leakage rate met the acceptance requirements. It is confirmed by water pressure testing and air pressure testing that the leakage rate index is set reasonably and the leak detection process is reliable.

Key words: helium leak detecting, printed circuit heat exchanger, leakage rate index, leak detection scheme

CLC Number: 

  • TG115.28
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