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。
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.
中图分类号 TG115.28
所属栏目 试验研究
基金项目
收稿日期 2009/11/23
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备注张忠政(1977-), 男, 博士研究生, 工程师, 研究方向为化工装备安全技术及工程。
引用该论文: ZHANG Zhong-Zheng,GONG Jian-Ming,LIANG Hua. Acoustic Emission Test of Pressure Vessel Leak Induced by Sealing Failure[J]. Nondestructive Testing, 2010, 32(11): 889~892
张忠政,巩建鸣,梁 华. 压力容器密封失效泄漏声发射检测[J]. 无损检测, 2010, 32(11): 889~892
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参考文献
【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].
【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].
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