微流量泄漏状态下输气管道泄漏检测技术  

Leakage Detection Technology of Gas Transmission Pipeline Under Slow and Micro Flow Leakage Condition

作　　者：张秀 Zhang Xiu(Binzhou University,Binzhou 256600,China)

机构地区：[1]滨州学院,山东滨州256600

出　　处：《山东化工》2022年第17期194-196,共3页Shandong Chemical Industry

摘　　要：近年来,输气管道事故频发,造成了不容小觑的损失。千里之堤毁于蚁穴,难以察觉的小孔泄漏往往就是大型管道爆炸事故的开端,及时察觉、精准定位并得到妥善处理显得尤为重要。针对微小流量泄漏工况,本文简要分析了输气管道精确度较高的检测技术方法的特征与发展,其中主要介绍的次声波作为近年的热门的泄漏检测技术,可以准确可靠地对泄漏的位置实时定位,这种技术实用经济且发展前景较好,但介于现今技术均存在一定缺陷,技术之间的嵌合仍是现今监测的主要选择。In recent years,frequent accidents of gas transmission pipelines have caused considerable losses.The embankment of a thousand miles was destroyed in an ant nest,and the small hole leakage that is difficult to detect is often the beginning of a large-scale pipeline explosion accident.It is particularly important to detect,accurately locate and properly handle it in time.This paper briefly analyzes the characteristics and development of high-precision detection techniques and methods of gas transmission pipeline under the working condition of small flow leakage.As a popular leak detection technology in recent years,infrasound wave introduced in this paper can accurately and reliably locate the leak location in real time.This technology is practical,economical and has a good development prospect.However,there are some defects in today's technologies,and the mosaic between technologies is still the main choice for monitoring today.

关 键 词：输气管道 泄漏检测 次声波 分布式光纤 

分 类 号：TQ055.8[化学工程] TE973[石油与天然气工程—石油机械设备]