| 压力容器密封失效泄漏声发射检测 |
| |
| 引用本文： | 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, 0(11): 889-892 |
| |
| 作者姓名： | 张忠政 巩建鸣 梁华 |
| |
| 作者单位： | [1]南京工业大学,南京210009 [2]南京市锅炉压力容器检验研究院,南京210002 |
| |
| 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。
|
| 关 键 词： | 压力容器 泄漏 密封失效 声发射 |
Acoustic Emission Test of Pressure Vessel Leak Induced by Sealing Failure |
| |
| ZHANG Zhong-Zheng,GONG Jian-Ming,LIANG Hua. Acoustic Emission Test of Pressure Vessel Leak Induced by Sealing Failure[J]. Nondestructive Testing, 2010, 0(11): 889-892 |
| |
| Authors: | ZHANG Zhong-Zheng GONG Jian-Ming LIANG Hua |
| |
| Affiliation: | 1.Nanjing University of Technology,Nanjing 210009,China;2.Nanjing Boiler ＆ Pressure Vessel Supervision and Inspection Research University,Nanjing 210002,China) |
| |
| 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. |
| |
| Keywords: | Pressure vessel Leak Seal failure Acoustic emission |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
