核岛设备冷却水系统是核电站重要的闭式冷却水系统之一，对核岛设备冷却水进行化学处理并按照一定标准控制水质是防止系统内发生腐蚀和污垢沉积的重要措施。通过对国内外核电站核岛设备冷却水系统使用的化学处理方式及存在的问题进行广泛调研，以期对该系统化学处理方式的优化与革新起到指导作用。结果表明，核电站核岛设备冷却水化学处理的主要目的是材料防腐蚀。美国电力研究院（简称EPRI）推荐添加缓蚀剂和水质控制两种方案对闭式水系统进行防腐蚀处理；国内核电站核岛设备冷却水化学处理主要通过添加缓蚀剂的方式进行，添加缓蚀剂的种类经历了铬酸钾、磷酸盐、亚硝酸盐和钼酸盐等几个阶段。核岛设备冷却水系统存在的主要问题是循环水中铁含量超标和铜腐蚀。

Component cooling system is an essential closed cooling system in nuclear power station. Chemical treatment and controlling water quality based on standard are important measures to prevent materials corrosion and fouling in cooling system. In order to guide the optimization and innovation of chemical treatments of component cooling water, on-site survey and literature investigation are employed to summarize and investigate the chemical treatments applied to nuclear power station and their imperfectness. The results indicated that the main purpose of chemical treatment of component cooling water is anti corrosion of materials. Adding inhibitors or water treatments are recommended by Electric Power Research Institute (EPRI) for the anticorrosion treatment of the closed water system. In the nuclear power station of our country, adding inhibitor is the main measure to prevent the corrosion of materials. With the passage of time, chromates, phosphate, nitrites and molybdate are added as inhibitors stage by stage. The main problems for component cooling systems are the Fe content in circulating water exceeding the standard and the corrosion of copper.