高压直流输电换流阀晶闸管铝散热器腐蚀问题研究  

Researching of converter valve thyristor aluminum heat sink corrosion problem of HVDC

作　　者：赵文亮 

机构地区：[1]华电电力科学研究院,陕西西安710000

出　　处：《清洗世界》2015年第12期1-3,30,共4页Cleaning World

摘　　要：总结了国内高压直流输电换流阀晶闸管铝散热器腐蚀引起设备故障、腐蚀机理、防治技术的研究现状,认为铝散热器腐蚀是引起均压电极结垢,导致冷却水管路堵塞和均匀电极密封垫圈泄露的主要原因,分析认为离子交换树脂粉末不是引起铝碱性腐蚀的原因,并通过理论估算了铝散热器的年腐蚀量。Summerised equipment failure, corrosion mechanism, prevention and control technology research status caused by thyristor aluminium radiator corrosion of domestic HVDC. Conclued aluminiumradiator corrosion was the main reason which causes equalizing electrode fouling, the clogging in cooling water pipe and the homogeneous electrode seal gasket leaking. Analysed that ion exchange resinpowder was not reason casuing the alkaline corrosion of aluminium alloy, theoretical calculated the annual amount of corrosion of aluminium radiator.

关 键 词：关键词:换流阀 散热器 腐蚀 离子交换树脂 铝合金 

分 类 号：TM721.1[电气工程—电力系统及自动化]