岭澳核电站CRF系统碎石过滤器的腐蚀与防护

CORROSION AND PROTECTION OF DEBRIS FILTERS IN CRF SYSTEM OF LING-AO NUCLEAR POWER STATION

通过形貌观察、化学成分分析、扫描电镜及能谱分析、浸泡试验、自腐蚀电位测定,研究了岭澳核电站CRF系统碎石过滤器的腐蚀现象,其主要原因被归结为微生物腐蚀的作用.对CRF系统碎石过滤器采用了以阴极保护为主的一系列防腐措施,保护电位测量和表面检查的结果表明,碎石过滤器得到了有效的防护.

With morphology observation and chemical composition analyses by SEM and EDS as well as immersion test and corrosion potential measurement,the corrosion of debris filters in the CRF system of Ling Ao Nuclear Power Station was studied.The primary cause was regarded as microbion induced corrosion.After a series of anti-corrosion measures consisted mainly of cathodic protection (CP) were applied to debris filters in the CRF system,the CP potential measurement and surface examination showed that the CRF debris filters were efficiently protected.