基于负压波-流量法的管道泄漏检测试验系统(英文)

Pipeline Leak Detection Testing System Based on Negative Pressure Wave and Flow

构建了一套基于负压波和流量的管道泄漏检测试验系统.该系统利用研华PCI-1710 HG数据采集卡实时采集管道的压力和流量数据,利用小波变换去除混杂在压力和流量数据中的噪声信号,采用连续小波变换检测压力和流量数据的奇异点从而实现泄漏的检测与定位.监测系统的软件部分采用NI公司的图形化编程语言LabVIEW开发.该系统能及时检测管道泄漏并进行定位.

To solve the problem of pipeline leak detection and meet the demand of student＇s learning, an experimental system of pipeline leak detection based on negative pressure wave and flow is established in the laboratory. Advantecb DAQ board PCI-1710HG is used to acquire pressure and flow flux, wavelet transform is utilized to analyze the test data the software of the monitoring system is developed by National Instruments graphical programming language LabVIEW. It can detect and locate pipeline leak point in time. Finally, a set of testing results is provided.