波导杆辅助声发射检测承压管道泄漏实验研究

An Experimental Study on Using the Assistant Acoustic Emission of Wave Guide Rods to Examine the Gas Leakage from Pressure Piping

在实验室将3根波导杆焊在实验用承压管道上,建立了声发射检测系统。通过对承压管道泄漏过程的声发射在线监测,分析了在不同压力、不同泄漏孔径情况下,波导杆上传感器所接收的信号幅度的规律,得出了波导杆可以应用于特殊工况下管道气体泄漏声发射检测的结论。

Three wave guide rods were welded on experimental pressure pipelines in Lab for studying the feasibility and reliability of using the assistant inspection technology of wave guide rods on the gas leakage from the pressure piping, and an examination system for acoustic emission was founded. Through the online monitoring of the gas leakage process of the pressure piping, the law of the signal amplitude received from the detectors of the wave guide rods was analyzed under the conditions of different pressures and pore sizes. It was concluded that the wave guide rods could be used for acoustic emission examination of gas leakage from pressure piping under particular conditions.