核电站海水系统蝶阀蝶板腐蚀原因分析及处理

The research of the corrosion reasons and some effective methods to solve the problem for the discs of seawater butterfly valves NPP

分析了大亚湾及岭澳核电站蝶阀蝶板腐蚀的原因。介绍了国外企业采用的阀门处理新工艺,提出了一些有针对性的改进措施,解决了现场海水系统蝶阀蝶板腐蚀问题。

Introducing the severe corrosion of discs on butterfly valves existed in seawater systems of Da Ya Bay NPP and Ling Ao NPP, and analyzing the root reasons of corrosion. Corresponding to the corrosion existed in different situations in seawater, giving some proposals to solve the problems.