Study of girth weld selection principles and solution of inaccessible girth weld for high wear factor pipe in pre-service inspection

摘要：

　　During pre-service inspection(PSI)of the CPR1000 units,there are two inspection problems of girth weld for high wear factor pipes.They are absence of girth weld selection principles and inaccessibility of inspection for girth weld.On the one hand,Summarize selection principles of girth welds for high wear factor pipe welds,by taking consideration of pipeline fracture analysis,system security importance and mechanical calculations; on the other hand,through visit of Nuclear island plant,survey inaccessible situation for PSI,and analyze its reason,finally propose two solutions which are Piping Layout Modification solution and substitute for original girth weld.

关键词： Pre-service inspection High wear factor Selection principal Inaccessibility Solution

作者: Guo Xiaokai Li Xuejun

作者单位: China Nuclear Plant Engineering Company TianAn Cyber Park,Shenzhen,Guangdong Province,518000,China

会议类型: 国际会议

会议名称: Energy Materials 2014(第一届能源材料国际会议)

会议地点: 西安

会议语种:英文

页码: 545-550

在线出版日期: 2014-11-04（万方平台首次上网日期，不代表论文的发表时间）