摘要
核电厂稳压器波动管接管与底封头焊缝结构的特殊性引起单侧可达和球形检测面导致较大定位偏差的问题,针对这2个问题研发相控阵超声检测(PAUT)技术与缺陷定位修正算法,并在带自然缺陷的模拟试块上进行验证与射线检测结果对比。结果表明,结合缺陷定位修正算法,PAUT技术满足能力验证的要求,检出能力与射线检测相当。
In response to the single-sided accessibility issue caused by the weld structure and the significant positioning deviation caused by spherical detection surface in the surge nozzle to vessel weld of pressurizer in nuclear power plant,a phased array ultrasonic inspection(PAUT)technology and a defect positioning correction algorithm are developed,which are verified in a simulated body with natural defects and compared with the results of radiographic inspection.The results show that,combined with the defect positioning correction algorithm,the PAUT technology meets the requirements of the performance demonstration,and the detection capability is equivalent to that of radiographic inspection.
作者
罗立群
朱佳震
陈均
康志平
Luo Liqun;Zhu Jiazhen;Chen Jun;Kang Zhiping(DayaBay Nuclear Power Operations and Management Co.,Ltd.,Shenzhen,Guangdong,518000,China;CGNPC Inspection Technology Co.,Ltd.,Suzhou,Jiangsu,215004,China;National Engineering Research Center for Nuclear Power Plant Safety&Reliability,Suzhou,Jiangsu,215004,China)
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2024年第5期232-236,共5页
Nuclear Power Engineering
