衍射时差法超声检测技术在加氢反应器检验中的应用  

Application of Time-of-flight-diffraction Technique on Inspection of In-service Hydrogenation Reactor

作　　者：李永清[1] 陈彦泽[1] 赵彦修[1] 韩利哲[1] 单洪祥[2] 张伟[2] 

机构地区：[1]中国特种设备检测研究院,北京100013 [2]大庆石油管理局锅炉压力容器检验中心,黑龙江大庆163453

出　　处：《石油化工设备》2013年第6期71-74,共4页Petro-Chemical Equipment

摘　　要：介绍了衍射时差法超声检测技术(TOFD)的原理、特点及适用标准规范。现场采用TOFD检测在用加氢反应器的接管焊缝时发现了埋藏裂纹,通过超声检测和实际解剖验证,证明TOFD技术对埋藏裂纹类缺陷检测十分有效,消除了安全隐患。The principle and feature of time-of-flight-diffraction （TOFD） was introduced. The method was used to inspect an in-service hydrogenation reactor. The inspection result was verified by ultrasonic wave and proved that TOFD is effective method to find out a crack flaw within the joint of welding seam. The flaw was removed for safety.

关 键 词：衍射时差法超声检测技术 加氢反应器 焊缝 检验 应用 

分 类 号：TQ050.3[化学工程] TE966.07[石油与天然气工程—石油机械设备]