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[1]郝永梅,邢志祥,邵辉,等.压力管道泄漏声发射源定位的实验研究[J].中国安全生产科学技术,2011,7(6):140-144.
 HAO Yong-mei,XING Zhi-xiang,SHAO Hui,et al.Experiment research on acoustic emission source location of leakage of pressure pipelines[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2011,7(6):140-144.
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压力管道泄漏声发射源定位的实验研究()
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
7
期数:
2011年6期
页码:
140-144
栏目:
职业安全卫生管理与技术
出版日期:
2011-06-30

文章信息/Info

Title:
Experiment research on acoustic emission source location of leakage of pressure pipelines
文章编号:
1673-193X(2011)-06-0140-05
作者:
郝永梅邢志祥邵辉王凯全王小佳
常州大学环境与安全工程学院,常州? 213164
Author(s):
HAO Yong-mei XING Zhi-xiang SHAO Hui WANG Kai-quan WANG Xiao-jia
School of Environmental and Safety Engineering, Changzhou University, Changzhou? 213164, China
关键词:
管道泄漏声发射检测源定位互相关
Keywords:
pressure pipelines leakage AE testing source location Cross-correlation
分类号:
X933
DOI:
-
文献标志码:
A
摘要:
结合实验室声发射仪和油气管道设备,建立了充气管道泄漏声发射检测系统模型,分别在传感器间距、管道压力和泄漏量三种变化状态下进行了泄漏源定位影响实验。对管道泄漏声发射信号的时域统计特征、频域分布特征以及泄漏信号的相关性作了分析;从声信号能量累计和衰减特性方面对互相关定位法和幅度衰减测量区域定位法的可行性进行了计算,表明在传感器间距较小和泄漏量较小的状态下,在背景噪声较小的环境中,用互相关法具有较好的定位精度;而幅度衰减测量区域定位方法对泄漏源的定位误差较大。
Abstract:
Combined with Acoustic Emission(AE) equipment and Oil and Gas Pipeline in the laboratory, a model of AE pressure pipe testing was designed and set up. The source location experiments of leakage of pressure pipelines were did under three different state, as chang the distance between sensors, the pressure of pipelines and the leakage of pipeline by this system. Tested and verified the feasibilility of attenuation measurement of regional positioning method and correlation positioning method from attenuation characteristics of acoustic signals and energy accumulation two sides which was accorded to sound pressure correspond exponential decay law when signal is spreaded.The results show that correlation positioning method can do AE Location of leakage points of pressure pipelines effectively when the distance of sensor is little and the leakage is small, and there are some deviations by attenuation measurement of regional positioning method when pressure is changing.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2011-01-09
作者简介:郝永梅,高级工程师。
基金项目:江苏省科技支撑计划(编号:BE2009624)和江苏省城市与工业安全重点实验室开放课题资助(编号:2008UIS004)
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