摘要
蠕变损伤是高温炉管主要的损伤形式之一,考虑到高温炉管材质的特殊性以及服役工况的复杂性,本文采用“穿透法”设计开发了一套水耦合超声检测方案,并对加工有不同深度人工刻槽的炉管试件进行试验研究,得到了检测信号随裂纹深度的衰减规律。经现场应用,该方案成功检出一处炉管内璧开裂,进一步验证了本文设计的水耦合超声检测方案的可行性。
Creep damage is one of the main damage forms of high-temperature furnace tube.Considering the particularity of high-temperature furnace tube material and the complexity of service conditions,water coupled ultrasonic testing scheme is designed and developed by using the"penetration method".The experimental study is carried out on the furnace tube specimens with different depth of artificial groove,and the attenuation law of detection signal with crack depth is obtained.After field application,the scheme succesfully detected a Crack on the inner wall of the furnace tube,which further verifed the feasibility of the water coupled ultrasonic detection scheme designed in this paper.
作者
胡振龙
沈功田
肖尧钱
胡笠
王洋
Hu Zhenlong;Shen Gongtian;Xiao Yaoqian;Hu Li;Wang Yang(China Special Equipment Inspection and Research Institute,Beijing 100029;North Huajin Chemical Industries Group Co.,Ltd.,Panjin 124000)
出处
《中国特种设备安全》
2020年第12期82-88,共7页
China Special Equipment Safety
基金
国家重点研发计划课题项月(2017YFF0210401)
中国特种设备检测研究院内部立项项目(2016内22)。
关键词
高温炉管
蠕变
水耦合
超声检测
High temperature furnace tube
Creep
Water coupling
Ultrasonic testing
作者简介
胡振龙(1986-),男,硕士,工程师,从事承压设备检验检测及先进无损检测工作;通讯作者:沈功田,E-mail:shengongtian@cse.org.cn。
