地下油气输送管道漏磁高速在线检测技术及装置

地下油气输送管道漏磁高速在线 检测技术及装置 何辅云 ,王 宝 ,何 箭 (合肥工业大学 计算机与信息学院 ,合肥 230009) 摘 要 :基于高速漏磁检测原理 ,设计一种高速探伤装置 ,专门对地下油气输送管道在线高速 检测 ,具有速度快、 无漏检等特点。检测数据经过放大、 消噪、 压缩后存入 RAM 或磁带中。检测装 置钻出管道后 ,RAM 或磁带中数据与车载的检测控制、 分析系统联系 ,经去压缩解码器恢复成检 测图形曲线。高速检测系统能准确识别缺陷的位置和类型。 关键词 :漏磁检测 ;管道 ;数据处理 ;缺陷 中图分类号 : TG115. 28 文献标识码 :A 文章编号 :100026656(2002) 1020425203 HIGH 2SPEED MAGNETIC FL UX LEAKAGE NONDESTRUCTIVE TESTING TECHNOLOG Y AND SYSTEM FOR UNDERGROUND OIL OR GAS TRANSPORTATION PIPELINES HE Fu 2yun , WANG B ao , HE Jian (School of Computer and Information , Hefei University of Technology , Hefei 230009 , China) Abstract : Based on the theory of magnetic flux leakage testing , a device was designed for on2line high2speed inspec2 tion of underground oil or gas transportation pipelines without any omission. Signals were amplified , noise2reduced , com2 pressed and stored up in RAM or tape. After the device getting out of the pipeline , the data were decoded to form testing graph and the defects could be accurately located and identified. K eywords :Magnetic flux leakage testing ; Pipeline ; Data processing ; Defect 当今 ,各产油国急需地下油气输送管道高速无 损检测......