压力容器密封失效泄漏声发射检测

详细信息

Acoustic Emission Test of Pressure Vessel Leak Induced by Sealing Failure

摘要: 主要通过介绍两台压力容器密封失效泄漏的声发射检测案例, 分析了压力容器密封失效泄漏时声发射信号特性。检测结果显示当泄漏介质为液体时, 密封失效泄漏信号为幅度较低的连续型信号, 中心频率约为10~50 kHz; 当泄漏介质为气体时, 泄漏信号为幅度较高突发型信号占优的混合型信号, 中心频率约为100~400 kHz, 此类信号能通过时差定位方法实现定位。检测结果为类似压力容器泄漏声发射检测提供了参考。
- 压力容器 /
- 泄漏 /
- 密封失效 /
- 声发射
Abstract: Two cases of acoustic emission test on leak were done and the signals characters were analyzed . The results indicated that when the leak mediums were liquid, the acoustic emission signals were continuous signals with low amplitude and the center frequency was about 10~50 kHz; when the leak mediums were gas, the acoustic emission signals were mixed signals with the burst signals being predominant and the center frequency being about 100~400 kHz, and the kind of leaks could be located by Time of Arrival location methods. The research results provided references for similar acoustic emission tests on pressure vessel leak.
- Pressure vessel /
- Leak /
- Seal failure /
- Acoustic emission

[1]	李善春.管道气体泄漏的声源与声发射信号特性[D].大庆: 大庆石油学院, 2007.
[2]	陈志钢.声发射技术在泄漏检测中的应用[J].无损检测, 2008, 30(6): 366-368.
[3]	GB/T 18182—2000 金属压力容器声发射检测及结果评价方法[S].