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介绍了CPR1000核电站小修期间发生的电动截止阀阀杆扭曲过程和现况,分析了电动截止阀阀杆扭曲的原因,并对阀门参数及结构型式进行调整和改进,解决了电动截止阀阀杆扭曲问题。
This paper introduces the process and current situation of the valve stem twisting during the overhaul of the CPR1000 nuclear power station, analyzes the reason of the valve stem twisting of the electrical valve, and adjusts and improves the valve parameters and the structure type to solve the problem that the valve stem twists problem.