核电站海水蝶阀蝶板腐蚀原因分析及改进实践

Analysis and Improvement of Corrosion Cause of Seawater Butterfly Valve Disc in Nuclear Power Station

摘要: 为解决核电站海水蝶阀蝶板腐蚀问题，对可能产生腐蚀的各种因素进行了排查研究。通过对系统工况条件、蝶板选材、铸造工艺、环境条件等方面进行分析，得出产生腐蚀的可能原因。结合蝶板腐蚀的各可能因素提出一些针对性的防腐措施，为海水系统阀门腐蚀提供解决方案。

Abstract: Various factors which may cause corrosion are investigated to solve the corrosion issue of seawater butterfly valves disc used in nuclear power station.The system working condition, butterfly valve disc material selection, casting process, environment condition and other factors were analyzed to find the possible causes of the corrosion of the disc. Finally, aiming at these factors, some targeted measures are put forward to provide solution for corrosion of seawater valves.