某型压水堆RHRS电动闸阀常见故障解决措施

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某型船用压水动力堆余热排出系统（危冷系统）电动闸阀存在卡阀和内漏的常见故障,分析设计和使用不当造成的原因,并提出在余热排出系统的二次侧加装电动调节阀的改进方案。该方案解决了电动闸阀故障,同时也改进了降温速率的估算方法,使其运行操作更加简单容易。 Valve stuck fault and internal leakage fault is a common fault of the electric gate valve in a type of pressurized water reactor residual heat removal system（emergency cooling system）.It due to improper design and use,than a solution is provided in this paper which should install electric control valve in the secondary side of the residual heat removal system.The program could solve this common fault,and the cooling rate estimation method is improved.The operation may become easily.