抽水蓄能电站在役高强螺栓质量安全检测技术研究
Research on Quality and Safety Testing Technology for High Strength Bolts in Service of Pumped Storage Power Stations
程胜金 1李东风 1高志萌 1伍卫平 1倪国胜1
作者信息
- 1. 水利部水工金属结构质量检验测试中心,河南省郑州市 450044
- 折叠
摘要
对抽水蓄能电站机组在役高强螺栓质量安全检测技术进行了研究,提出了对螺栓内部质量超声波相控阵检测和超声波法检测螺栓轴向应力相结合的技术方法.采用相控阵检测螺栓内部质量能够精确地发现螺栓对比试样中的四个人工刻槽缺陷,采用超声波法检测螺栓轴向应力,检测精度误差在±2％以内,具有很高的检测精度.通过试验和数据分析结果表明,该检测方法能够快速地实现对水工金属结构在役高强螺栓的质量检测排除安全隐患,具有很高的工程应用价值.
Abstract
A study was conducted on the quality and safety inspection technology of high-strength bolts in service for pumped storage power station units,and a technical method combining ultrasonic phased array inspection of internal quality of bolts and ultrasonic method for detecting axial stress of bolts was proposed.The use of phased array to detect the internal quality of bolts can accurately detect the four artificial groove defects in the bolt comparison sample.The ultrasonic method is used to detect the axial stress of bolts,with an accuracy error of±2％,and has high detection accuracy.The results of experiments and data analysis indicate that this detection method can quickly achieve quality inspection and eliminate safety hazards for in-service high-strength bolts in hydraulic metal structures,and has high engineering application value.
关键词
高强螺栓/超声波相控阵/轴向应力/标定试验/载荷比对Key words
high strength bolt/ultrasonic phased array/axial stress/calibration test/load comparison引用本文复制引用
基金项目
中央级科学事业单位修缮购置专项资金项目(1261421610477)
水利部综合事业局2022年度技术创新研究项目()
出版年
2024
NETL
NSTL
万方数据