液体输送管道泄漏的声发射检测方法研究  

Study on acoustic emission method for the detection of leaks in liquid delivery pipeline

作　　者：蒋向辉[1] 苏杭[2] 张清懿[2] 

机构地区：[1]柳州职业技术学院,广西柳州545006 [2]华南理工大学机械与汽车工程学院,广州510640

出　　处：《天然气化工—C1化学与化工》2009年第2期45-47,50,共4页Natural Gas Chemical Industry

基　　金：广西教育厅科研基金项目(200708LX257)

摘　　要：在对声发射检测技术和信号分析方法进行理论研究的基础上,建立了液体管道泄漏的声发射检测系统,采集液体输送管道泄漏的声发射信号,运用频谱分析和小波分析等方法,对采集到的信号进行分析比较,判断有无泄漏和声发射信号与距离等因素的关系。实验研究结果证明了液体管道泄漏的声发射检测技术的有效性,而且对于长距离管线的检测具有很好的应用前景。On the basis of theoretic study on the acoustic e mission testing technology and signal analysis methodology, a acoustic emission testing system was established to collect the acoustic leak signals in liquid delivery pipeline, and the signals were analyzed and compared by spectrum analysis and wavelet analysis methods to find the relationship between the leakages and the acoustic signals and distances. Experimetal results indicated that the acoustic emission testing technology was effective in determining the leaks of liquid delivery pipelines, and it will has a good application prospect in the inspection of long distance liquid delivery pipelines.

关 键 词：声发射 液体输送管道 泄漏 检测 

分 类 号：TQ055.8[化学工程]