某核电CFI循环水过滤系统粗格栅海生物污损分析及解决措施  

Analysis and Solutions of Marine Biofouling on Coarse Grids in the CFI Circulating Water Filtration System of a Nuclear Power Plant

作　　者：田冰 TIAN Bing(China Nuclear Maintenance Co.,Ltd.,Fuqing Branch,Fuqing 350300,China)

机构地区：[1]中核检修有限公司福清分公司,福建福清350300

出　　处：《材料保护》2022年第6期173-176,共4页Materials Protection

摘　　要：为解决某核电厂CFI(循环水过滤)系统粗格栅海生物污损较为严重的问题,通过对粗格栅运行工况、海生物污损的原因及现有防污损措施的分析,发现无锡自抛光防污漆及次氯酸钠杀生剂没有起到除污效果;采用无毒料纯有机硅不黏型防污漆作为新涂层,同时改造NaClO加药设备共同抑制海生物污损,经过验证显示效果良好:表面基本无可见的海生物附着,涂层基本完好,防污漆损耗率较低;该方法可保证粗格栅长时间的持续运行,为后续电站粗格栅防海生物污损提供参考。In order to solve the serious problem of marine biofouling on coarse grids in the CFI(circulating water filtration) system of a certain nuclear power plant, the operation conditions of the coarse grid, the reasons for marine biofouling and the existing anti-fouling measures were analyzed. It was found that tin-free self-polishing anti-fouling paint and sodium hypochlorite biocide did not have a decontamination effect. Therefore, the non-toxic, non-sticky pure organosilicon anti-fouling paint was used as the new coating to restrain marine biofouling together with modified NaClO dosing equipment. The verification showed good effect was obtained: there was basically no visible sea creatures attachment on the surface, the coating was basically intact, and the loss rate of the anti-fouling paint was low. This method could ensure the continuous operation of the coarse grid for a long time, which would provide reference for the follow-up power station coarse grid to prevent sea biofouling.

关 键 词：粗格栅 海生物污损 无锡自抛光 防腐 涂装 加药装置 

分 类 号：TM623[电气工程—电力系统及自动化]