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国内某核电站第一次大修期间,检查发现重要厂用水系统( SEC)衬胶管道内部衬胶大面积脱落。厂用水系统为核安全相关系统,管道衬胶大面积脱落可能引起管道堵塞、腐蚀泄露、进而导致系统不可用,严重时导致机组停机。本文对厂用水管道衬胶脱落问题进行了现场调查、设计资料查询、检测分析,讨论了橡胶衬里脱落的原因。

A domestic nuclear power plant during the overhaul for the first time,by Inspection found that Essen-tial Service Water ( SEC) rubber lining pipeline internal rubber lining drop in large area. Essential Service Water as nuclear safety related systems,Pipe lining rubber peeling problem may cause blockage,corrosion leakage,leading to system available or machine stop. In this paper,Essential Service Water pipe lining rubber peeling problems were studied by spot investigation,design data query and testing analysis. The cause of the rubber lining drop was dis-cussed.

参考文献

[1] 重要厂用水系统(SEC)设计手册(SDM)【内部资料】.
[2] ABX45400003X4DB04GN. 核岛碳钢管道预制工程制造及检查流程,【内部资料】.
[3] HG/T 20677-1990,橡胶衬里化工设备[S]. 1991.,1991.
[4] 陈文进.橡胶衬里工艺及质量控制[J].广西轻工业,2011(06):25-26.
[5] 赵万祥 . 大亚湾核电站核岛应急生水系统衬胶短管失效原因分析[J].大亚湾核电,2008,12
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