核电站汽动给水泵抽汽调节阀门异常关闭原因分析

Cause Analysis of the Abnormal Closure of Pumping Regulating Valve of Steam Feed Pump in Nuclear Power Station

某核电站在机组特定工况下出现汽动给水泵抽汽调节阀门异常关闭的问题,此时若叠加其他给水系统控制故障,可能引起蒸发器水位大幅波动至低低液位而跳机跳堆。论文结合具体案例详细分析了抽汽调节阀门异常关闭的原因,并针对该原因制定相应的措施。

The abnormal closure of the steampumping regulating valve of a nuclear power plant under specific operating conditionsmay cause the evaporator water level to fluctuate sharply to low liquid level and jump out of the reactor if other control faults of the feed water system are superimposed at this time.In this paper,the causes of the abnormal closure of steamextraction control valves are analyzed in detailwith specific cases,andcorrespondingmeasuresare formulatedfor accordingtothese causes.