某核电厂调试期间W型电动闸阀密封性试验超标问题及原因探讨

The Problem and Reason of W Type Electric Gate Valve Sealing Test Unqualified during the Commissioning of a Nuclear Power Plant

某核电厂调试期间,安全壳机械贯穿件隔离阀密封性试验一次合格率较低,该文主要对安全壳机械贯穿件中的W型电动闸阀密封性试验不合格的现象进行描述及对密封性不合格的原因进行探讨,为后续电厂调试提供经验和参考。

During nuclear power plant debugging period,qualified rate is low of the containment mechanical penetrations isolation valves sealing test, this paper describes and discussesthe unqualified phenomenon and unqualified reasons of the containment mechanical penetrationsWtypeelectric gate valves sealing test, in order to provide experience and reference for the following plant commissioning.