Page 46 - 无损检测2024年第六期

试验研究
试验研究

DOI：10.11973/wsjc202406003

反应堆压力容器主螺栓表面缺陷的线激光测量与

涡流检测对比

余永成 ，王立君 ，王百舸 ，尹基林 ，李 翔 1，2
1，2
1，2
1，2
1，2
（1. 中广核检测技术有限公司，苏州 215000；2. 国家核电厂安全及可靠性工程技术研究中心，苏州 215000）

摘 要：涡流检测是核电站反应堆压力容器主螺栓的主要检测方式，该方法主要用于对螺纹根
部的缺陷进行表面检测。线激光测量技术是一种近年来新兴的非接触测量方式，通过高速激光扫
描实现物体表面形貌的大面积、高分辨率测量，具有快速、非接触及高精度等特性。采用两种方法
对反应堆压力容器主螺栓进行检测，试验结果表明，两种方法均可对其缺陷进行有效检测，线激光
技术能精确到微米级，测量结果更加直观，且容易定量、定性，为主螺栓检测中的缺陷判定提供了
可靠的数据支撑；两种检测方法各有优劣，实际检测时应取长补短，从而为反应堆压力容器主螺栓
提供更加智能化、高效的检测方案。
关键词：线激光测量；反应堆压力容器主螺栓；涡流检测
中图分类号：TG115.28 文献标志码：A 文章编号：1000-6656(2024)06-0012-05

Comparison of line laser measurement and eddy current detection of surface defects of main

bolt of reactor pressure vessel

YU Yongcheng , WANG Lijun , WANG Baige , YIN Jilin , LI Xiang 1，2
1，2
1，2
1，2
1，2
（1. CGNPC Inspection Technology Co., Ltd., Suzhou 215000, China，
2. National Engineering Research Center for Nuclear Power Plant Safety & Reliability, Suzhou 215000, China）
Abstract: Eddy current testing is the main detection method for the main bolts of pressure vessels in nuclear power
plants. This method is mainly used for surface detection of defects at the root of threads. Line laser measurement technology is
an emerging non-contact measurement method in recent years, which achieves large-area and high-resolution measurement
of object surface morphology through high-speed laser scanning and has characteristics such as fast, non-contact, and high-
precision, it is widely used in the field of industrial online measurement. Two methods were used to detect bolts, and the
experimental results showed that both methods can effectively detect their defects. Line laser technology can be precise to
the micrometer level, and the measurement results were more intuitive, easy to quantify, and qualitative. This provided
reliable data support for defect determination in main bolt detection. Both detection methods had their own advantages
and disadvantages, and in actual testing, their strengths and weaknesses should be complemented, thus providing a more
intelligent and efficient detection scheme for the main bolts of reactor pressure vessels.
Key words: line laser measurement；main bolt of reactor pressure vessel；eddy current testing

主螺栓是连接核反应堆压力容器和顶盖的承压 环境下，易产生多种类型缺陷。ASME和RSEM标
部件，长期服役于高温、高压、高辐射及交变应力的 准都明确规定应对其进行检测，以保证核反应堆的
安全运行。标准中要求的涡流方法主要是针对主螺
栓表面及近表面缺陷的检测，采用的是幅值法，因此
收稿日期：2023-12-02
作者简介：余永成（1989－） ，男，硕士，高级工程师，从事核电站 无法对缺陷进行准确定性，当发现可疑信号时需采
涡流检测与设备研发工作 用渗透、目视等方法进行复核确认，给检修过程带来
通信作者：余永成，yuyongcheng1218@163. com
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2024 年 第 46 卷 第 6 期
无损检测