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[1]刘四运,贾伯早.基于双Duffing振子的天然气管道泄漏检测系统[J].油气储运,2015,34(7):784-787.[doi:10.6047/j.issn.1000-8241.2015.07.022]
　LIU Siyun,JIA Bozao.Dual-Duffing-oscillator-based leakage detection system for natural gas pipeline[J].Oil & Gas Storage and Transportation,2015,34(7):784-787.[doi:10.6047/j.issn.1000-8241.2015.07.022]

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基于双Duffing振子的天然气管道泄漏检测系统

《油气储运》[ISSN:1000-8241/CN:13-1093/TE] 卷: 34 期数: 2015年第7期页码: 784-787 栏目: 出版日期: 2015-07-25

Title:: Dual-Duffing-oscillator-based leakage detection system for natural gas pipeline

作者:: 刘四运; 贾伯早; 伊犁哈萨克自治州特种设备检验检测所, 新疆伊宁 835000

Author(s):: LIU Siyun; JIA Bozao; Special Equipment Inspection and Testing Institute of Kazak Autonomous Prefecture of Ili, Yining, Xinjiang, 835000

关键词:: 天然气管道; Duffing; 次声波; 泄漏检测; 混沌状态; 周期信号

Keywords:: natural gas pipeline; Duffing; infrasound wave; leakage detection; chaotic state; periodic signal

分类号:: O421.5;TE89

DOI:: 10.6047/j.issn.1000-8241.2015.07.022

摘要:: 为了快速、准确检测出天然气管道的泄漏情况, 基于混沌振子检测微弱信号原理, 设计出双Duffing振子检测天然气管道泄漏的系统:在传统的单Duffing振子的基础上, 再加入一路信号, 很好地抑制了单Duffing振子在输出过程中的周期性运动及其共模干扰, 凸显出真正的混沌状态, 有效提高了系统检测的灵敏度和准确度。在伊犁哈萨克自治州进行多次试验检测, 结果表明:双Duffing振子检测系统能够很好地识别出天然气管道泄漏情况, 且速度快、准确度高, 具有一定的推广价值。

Abstract:: To detect leakages of natural gas pipeline quickly and accurately, a leakage detection system with dual-Duffing-oscillator for natural gas pipeline is developed on principles related to pickup of weak signal by chaotic oscillators. On bases of conventional single Duffing oscillator, another line of signals is added to suppress periodical movements and common mode interference with exports of single Duffing oscillator, so that effective chaotic state is highlighted truly, and accuracy and sensitivity of the detection system are significantly enhanced. This new system has been tested for several times in the Qazaq Autonomous Prefecture of Ili. Relevant results show that the dual-Duffing-oscillator detection system can effectively detect leakages in natural gas pipelines. With fast speed and high accuracy, the new system may be promoted to similar operations.

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备注/Memo

收稿日期:2014-8-19;改回日期:2015-4-9。
作者简介:刘四运,工程师,1965年生,2011年毕业于大连理工大学机械设计与机器自动化专业,现主要从事特种设备安全检验与研究工作。Tel:13199992266,Email:121948640@qq.com

更新日期/Last Update: 1900-01-01