核电厂SG传热管涡流检验内壁显示浅析  

Eddy Current Analysis of Inner Wall Signal for 690TT Tubes

作　　者：陈胜宇 肖镇官 曾玉华 杨丽军 CHEN Shenyu;XIAO Zhenguan;ZENG Yuhua;YANG Lijun

机构地区：[1]中核武汉核电运行技术股份有限公司,武汉430023

出　　处：《科技视界》2020年第7期217-221,共5页Science & Technology Vision

摘　　要：本文阐述了AP1000堆型非能动余热导出热交换器传热管PVN涡流信号的分析过程。针对检验过程中出现的可疑内壁涡流显示,主要从涡流信号的相位角进行解析,附加内窥镜目视检验和涡流旋转探头检验,最终判定该信号为PVN信号,结果与管材生产厂家给出的原材料分析结果一致。This paper introduced the defect analysis process of PVN for AP1000 PRHR HX tubes.Suspicious inner indication was detected during eddy current inspection,Analysis from the phase of eddy current signal,the endoscope visual inspection and eddy current rotating probe inspection was performed,confirm the signal is PVN,the result is consistent with the analysis result of raw materials from tube manufacturers.

关 键 词：涡流检验 Bobbin探头 旋转探头 PVN 

分 类 号：TL353.13[核科学技术—核技术及应用]