石油工业技术监督

管道运输是一种经济、方便的运输方式,但因自然或人为因素而造成的管道泄漏不容忽视。常用的管道泄漏检测方法有负压波法、流量平衡法、次声波法、压力分布法以及神经元网络法等,到目前为止,尚未有一种方法能适用于任意工况,且对于微漏、小流量泄漏检测灵敏度不佳。通过对比发现,由于各种方法在检测中都会存在一些缺陷,因此多种方法耦合、互补使用将在输气管道泄漏检测中有着良好的发展趋势。

Pipeline transportation is an economical and convenient transportation method. However, pipeline leakage caused by natural or human factors cannot be ignored. Commonly used leakage detection methods include negative pressure wave method, flow rate balance method, infrasonic wave method, pressure distribution method and neuron network method, etc. So far, there is no method that can be applied to any working condition, and their sensitivity is poor for micro leakage and small flow-rate leakage detection. Through comparison, it is found that since various methods have some defects in detection, the coupling and complementary use of multiple methods will have a good development trend in gas pipeline leakage detection.