
Research on the Anticorrosive and Antifouling Scheme of Hydraulic Machinery Auxiliary System of Seawater Pumped Storage Power Stations
Shi-bei CHEN, Xin-ping WU, Yan-ming GAO, Zhen-xiang LI, Li-fang FAN, Dan YANG
Research on the Anticorrosive and Antifouling Scheme of Hydraulic Machinery Auxiliary System of Seawater Pumped Storage Power Stations
Compared with conventional pumped storage power station (PSPS), the working medium of seawater PSPS is seawater. So two new problems arise with hydraulic machinery auxiliary system: anticorrosion and antipollution. In terms of anticorrosion, the corrosion risk from the system design is reduced first, then materials through reasonable economic and technical comparison are selected, and finally the corrosion resistance of materials through appropriate anticorrosion measures is improved. In terms of antifouling, due to the small diameter and many buried pipes of the hydraulic machinery auxiliary system, the conventional coating antifouling cannot achieve sustainable effects easily. This paper uses the antifouling technology of coast nuclear power plant for reference and adopts the antifouling scheme of electrolytic seawater. After clarifying the key points of basic anticorrosion and antifouling. According to the characteristics of each auxiliary system of hydraulic machinery, this paper finally completes a complete set of anticorrosion and antifouling scheme results.
seawater pumped storage power station / hydraulic machinery auxiliary system / anticorrosion / antifouling / electrolysis antifouling {{custom_keyword}} /
表5 防腐科研成果要求 |
项目 | 部位 | 提供成果要求 | |
---|---|---|---|
上水库及输水发电系统 | 上下库进出水口、压力管道、厂房 | 提供初选防腐措施及相应经济指标 | |
力学性能 | 防腐材料本身的力学性能指标,比如抗拉强度、延展性、防腐材料与防腐对象结合面的黏合力等 | ||
环保性 | 满足环境容忍度 | ||
可施工性 | 提出具体的设计指标和施工工艺(如涂层厚度、与防腐对象结合面的处理工艺、防腐涂层本身的施工工艺等等);电解防腐方案设计 | ||
经济性 | 实验室条件下材料的经济学指标 | ||
耐久性 | 防腐材料在设计环境下(包括海水及其变动区、封闭环境、盐雾环境、室内潮湿等)的使用年限、防腐材料厚度损失值~时间关系曲线、防腐材料与防腐对象结合面的黏合力~时间关系曲线等 |
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