Leak Testing for Manufacturing and Shutdown of Nuclear Power Station Steam Generator

Introduced the helium leak testing technologies of welded joint tube-to-tubesheet for steam generator manufacturing and method of all leakage rate monitoring of secondary-to-primary side were introduced. The helium leak testing and water content leak testing were used successfully for shutdown in CANDU steam generators, and their detection limits were 0.001 and 0.005 kg/h, respectively.