摘要
蒸汽发生器(SG)是压水堆核电站的关键设备之一,其传热管是一回路压力边界中最薄弱的环节。为解决SG小曲率传热管受限于弯管曲率影响,无法实现一次性全管涡流检测,导致大修工期延长、人员辐照风险增加等问题。本文设计了一种搭配空气阻尼装置的弹簧骨架结构气动探头,创新采用探头驱动回收装置和内外部供气气动驱动装置,开发了一种新型SG传热管涡流自动检测系统,实现了SG小曲率传热管一次性全管涡流检测。
Steam generator(SG) is one of the key equipment in nuclear power plant,and its heat transfer tube is the weakest link in the primary pressure boundary.In order to solve the problem that SG small curvature heat transfer tube cannot realize one-time full tube eddy current detection due to the influence of bending tube curvature,which leads to the extension of overhaul period and the increase of radiation risk of personnel,a pneumatic probe with spring skeleton structure and air damping device is designed in this paper.The probe drive retraction device and the pneumatic drive device for internal and external air supply are adopted innovatively,and a new type of automatic eddy current inspection system for SG heat transfer tube is developed,which can realize one-time full-tube eddy current detection of SG small curvature heat transfer tube.
作者
孙黎明
裴希保
陈小亮
李阳
马强
何朋
Sun Liming;Pei Xibao;Chen Xiaoliang;Li Yang;Ma Qiang;He Peng(CGNPC Inspection Technology Co.,Ltd.,Suzhou,Jiangsu,215021,China)
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2023年第5期156-162,共7页
Nuclear Power Engineering
基金
国家自然科学基金项目(6589454)。
关键词
小曲率传热管
新型涡流自动检测系统
气动探头
Small curvature heat transfer tube
New type of automatic eddy current inspection system
Pneumatic probe
