石油学报 ›› 2007, Vol. 28 ›› Issue (1): 131-133,138.DOI: 10.7623/syxb200701027

• 石油工程 • 上一篇    下一篇

热输油管道泄漏定位技术研究

张东领, 王树青, 张敏   

  1. 中国海洋大学工程学院 山东青岛 266071
  • 收稿日期:2006-01-06 修回日期:2006-04-30 出版日期:2007-01-25 发布日期:2010-05-21
  • 作者简介:张东领,男,1977年12月生,2000年毕业于焦作工学院,现为中国海洋大学工程学院硕士研究生,研究方向为海底管道的泄漏检测.E-mail:dong_zhang59@yahoo.com.cn
  • 基金资助:
    教育部高校科技创新工程重大项目(No.704031)资助.

Leakage orientation technique for oil pipelines based on pressure wave

Zhang Dongling, Wang Shuqing, Zhang Min   

  1. College of Engineering, Ocean University of China, Qingdao 266071, China
  • Received:2006-01-06 Revised:2006-04-30 Online:2007-01-25 Published:2010-05-21

摘要: 对压力波在原油管道中的传播特性和传统负压波法泄漏点定位公式进行了分析,基于负压波平均波速的方法,提出了一种新的迭代定位算法.利用该算法对管道进行泄漏定位,提高了定位精度.利用小波变换在信号处理方面的优势,对负压波信号进行去噪处理,然后捕捉压力突变点.应用效果较好,得到较精确的时间差.仿真实例证明,新迭代算法的泄漏定位精度比传统方法有较大的提高.

关键词: 输油管道, 压力波, 泄漏检测, 泄漏定位, 小波变换, 信号处理

Abstract: The leakage of pipelines may result in the economic loss and serious environmental pollution.On the basis of the negative pressure mean wave velocity method,a new iterative algorithm for leakage orientation of oil pipelines was proposed by analyzing the transmitting characteristics of pressure wave and the defect of traditional formula for leakage orientation of pipelines.The proposed new algorithm is helpful to improve the orientation precision.The wavelet transformation was used to cancel the noises in the negative pressure signals and capture the strange point.The fairly precise time difference was obtained.The simulation results showed that the orientation precision of the proposed algorithm was better than the traditional method.

Key words: transportation pipeline, pressure wave, leakage detection, leakage orientation, wavelet transform, signal processing

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