某电厂除盐水生产系统水箱腐蚀分析及应对措施  

Analysis of Water Tank Corrosion of Desalted Water Production System ina Power Plant and Countermeasures

作　　者：魏帆 肖调兵 乔泽 周俊 邓绍伟 章强 WEI Fan;XIAO Tiao-bing;QIAO Ze;ZHOU Jun;DENG Shao-wei;ZHANG Qiang(Shenzhen Relabo Nuclear Energy Technology Development Co.,Ltd.Shenzhen 518120,China;China Nuclear Power Operation Technology Corporation.Co.,Ltd.Wuhan 430223,China;Fujian Fuqing Nuclear Power Co.,Ltd.Fuqing 350318,China)

机构地区：[1]深圳瑞莱保核能技术发展有限公司,广东深圳518120 [2]中核武汉核电运行技术股份有限公司,湖北武汉430223 [3]福建福清核电有限公司,福建福清350318

出　　处：《全面腐蚀控制》2020年第10期105-108,共4页Total Corrosion Control

摘　　要：某电厂除盐水生产系统水箱保温层下及底板均存在腐蚀问题,通过对其腐蚀问题进行分析,发现保温水箱易与保温棉材料、底板间隙存留的水分形成腐蚀电池,造成保温水箱腐蚀。针对该类腐蚀问题,提出保温材料选取、防腐涂料与施工工艺优化、防水层与密封材料铺设等建议,来有效缓解该类问题的发生。The water tank of desalted water production system in a power plant has the problem about corrosion under insulation and bottom plate corrosion.Through the analysis of its corrosion problems,it is found that the thermal insulation water tank is easy to form corrosion cell with the water retained in the thermal insulation cotton material and the bottom plate gap,resulting in the corrosion of the thermal insulation water tank.For these corrosion problems,some countermeasures are given,such as the selection of thermal insulation materials,the optimization of anticorrosive coating and coating construction process,the laying of waterproof layer and sealing materials,to effectively alleviate this kind of corrosion problem.

关 键 词：水箱 保温层下腐蚀 底板腐蚀 

分 类 号：TG172.1[金属学及工艺—金属表面处理]