锅炉等间隔密排管r射线检测工装  

R-ray Inspection Frock Used in Uniformly-spaced Close Packed Boiler Tube

作　　者：赵刚 胡学知 李小宾 

机构地区：[1]陕西西宇无损检测有限公司,西安712100 [2]中航庆安集团有限公司,西安710077

出　　处：《中国特种设备安全》2015年第7期33-35,共3页China Special Equipment Safety

摘　　要：对蒸汽锅炉等间隔密排小径管实施射线检测,检测标准执行JB/T 4730.2—2005,每道焊口须相隔90°拍2张底片,因结构特点,椭圆成像难度较大。针对使用Se75射线源检测,结合焊口等间隔密排的结构特点,在满足标准规范要求的前提下,作者设计制作了使用r射线源检测的探伤支架。经实际使用证明,利用该支架对蒸汽锅炉等间隔密排小径管进行r射线检测,底片质量好、效率高、安全可靠,可推广使用。In the radio graphic inspection of uniformly-spaced small-diameter pipe in steam boiler,detection standard JB/T 4730.2—2005 is used,and each weld shall take 2 negatives separated by 90 degrees.Because of the structure characteristics,elliptic imaging is difficult.To the usage of Se 75-ray source,combining with the structure features of weld interval densely arranged,in order to meet the standard requirements,this paper designs the r-ray source holder.It is proved that this holder could improve the film quality,efficiency and can be popularized in uniformly-spaced small-diameter pipe r-ray detection.

关 键 词：锅炉小径管 等间隔密排 r 射线检测 支架 椭圆成像 

分 类 号：X924.2[环境科学与工程—安全科学]