秦山第二核电厂发电机定子绕组空心导线的化学清洗  

Chemical Cleaning of Generator Stator Coil Hollow Conductor in Qinshan Ⅱ

作　　者：杨伟星 张剑 唐芳轩 李良 

机构地区：[1]中核核电运行管理有限公司,浙江海盐314300 [2]山东中实易通有限公司,山东济南370100

出　　处：《中国核电》2013年第4期352-355,共4页China Nuclear Power

摘　　要：基于发电机定子绕组空心导线内壁腐蚀产物成分分析,综合定子内冷水系统各部件材质的特性,针对性的选取具有专利技术的低温复合酸为清洗剂,对发电机定子绕组空心导线进行清洗。溶垢试验及腐蚀性试验表明,低温复合酸清洗剂能有效溶解空心导线内壁的结垢物,又能充分保证空心铜导线的安全性。清洗后定子冷却水流量和进出口水压恢复,消除了因氧化结垢引起的定子冷却水流量下降的问题,预膜后空心导线内部保护层得以恢复,防止了再次氧化结垢,对于同类问题的分析、处理提供了宝贵的经验。Based on amlyses of corrosion products of generator stator hollow conductors, and the summary of material characteristics of stator cooling system parts, a patent low temperature composite deaning acid was selected specifically. The solvency test and caustic test indicated that the composite acid can ~ssolved the corrosion products of the generator stator hollow conductors completely and safely. After acid cleaning and ply-film, the flow and presat~ of the stator cooling water become normal, the inner protect-film of the hollow conductors renewed. Some valuable experiences were provided for the analysis and management for the same kind of problems.

关 键 词：大型汽轮发电机 定子绕组 空心导线 复合酸 清洗 钝化 

分 类 号：TM623[电气工程—电力系统及自动化]