摘要
由于现场施工队伍多、施工工期短等原因,采用100%TOFD+100%UT组合方式取代100%射线检测方式对现场组焊的球罐焊缝进行检测,并编制了检测技术方案。按照该方案对一台球罐进行了TOFD检测,发现了许多圆形、条形缺陷。经超声检测验证,其检测结果与TOFD检测出的缺陷位置基本吻合。
For the non-destructive testing of fifteen 2000 m^3 liquefied petroleum gas spherical tanks, considering that there were many work teams in the construction field and the construction period was short, used the method combining 100% time of flight diffraction （TOFD） and 100% ultrasonic testing （UT） to replace the 100% ray inspection to detect the welds of tanks, and compiled the detection scheme. According to the scheme, detected a spherical tank by TOFD and found many roundness fault and strip defects. Verified the testing results by ultrasonic, the UT resuhs were coincide with the defects location detected by TOFD.
出处
《化工装备技术》
CAS
2014年第2期36-39,共4页
Chemical Equipment Technology
关键词
球罐
衍射时差法
超声检测
射线检测
检测方案
液化气
Spherical tank
Time of flight diffraction
Ultrasonic testing
Ray inspection
Detection scheme
Liquefied petroleum gas
