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基于激励响应的输油管道泄漏检测技术研究
引用本文:王通,阎祥安,李伟华,苏欣平.基于激励响应的输油管道泄漏检测技术研究[J].化工自动化及仪表,2006,33(1):59-63.
作者姓名:王通  阎祥安  李伟华  苏欣平
作者单位:1. 天津大学,机械工程学院,天津,300072;军事交通学院,训练部,天津,300161
2. 天津大学,机械工程学院,天津,300072
3. 军事交通学院,训练部,天津,300161
摘    要:基于激励响应法,假定管道末端阀门快速部分关闭,求出了出管道末端处的瞬态压力响应.根据定义的负压波反射系数关系式和瞬态压力响应图,应用行波计算方法得到泄漏点的全部信息(泄漏流量和位置).本文对一个实例进行了计算,并应用小波方法对瞬态压力信号的奇异点进行识别,准确判断出泄漏点位置,两者表明基于激励响应的输油管道泄漏检测技术是充分有效的一种新方法.

关 键 词:激励响应  输油管道  泄漏检测
文章编号:1000-3932(2006)01-0059-05
收稿时间:12 12 2005 12:00AM
修稿时间:2005年12月12

Research of Leak Detection Technique in Oil Pipelines Based on Induced Response
WANG Tong,YAN Xiang-an,LI Wei-hua,SU Xin-ping.Research of Leak Detection Technique in Oil Pipelines Based on Induced Response[J].Control and Instruments In Chemical Industry,2006,33(1):59-63.
Authors:WANG Tong  YAN Xiang-an  LI Wei-hua  SU Xin-ping
Affiliation:1. School of Mechanical Engineering, Tianjin University, Tianjin 300072, China ; 2. Training Department, Military Traffic Institute of PLA , Tianjin 300161, China
Abstract:Hypothesizing the portion of the end valve is closed instantly,the transient pressure in the end of pipeline is extracted based on induced response method.The full information(leak flow and location) of leak point is obtained applying the analysis of transient pressure plot and formula of negative pressure reflectance.In this paper,a case is calculated and then singular points are identified in transient pressure signal applying wavelet method,so the leak location is verified.The result proves that the new leak detection technique-induced response method is well effectively.
Keywords:induced response  oil pipelines  leak detection
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