| 天然气管道泄漏点的定位检测方法研究 |
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| 引用本文： | 李炜,陈希平,毛海杰,潘纬. 天然气管道泄漏点的定位检测方法研究[J]. 兰州理工大学学报, 2003, 29(4): 84-87 |
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| 作者姓名： | 李炜 陈希平 毛海杰 潘纬 |
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| 作者单位： | 兰州理工大学,电气工程与信息工程学院,甘肃,兰州,730050 |
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| 基金项目： | 甘肃省自然科学基金(ZR 96 030) |
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| 摘 要： | 将负压波法应用到天然气输气管道的泄漏检测与定位中,分析了影响负压波传播速度的因素,修正了定位公式,利用小波技术对负压波信号进行了消噪处理并捕捉了压力突降点,提高了检测灵敏度与定位的精度,仿真实验证明了此方法的有效性.
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| 关 键 词： | 泄漏检测与定位 负压波 小波变换 管道 |
| 文章编号： | 1000-5889(2003)04-0084-04 |
| 修稿时间： | 2003-04-02 |
Investigation of method for leak detection and allocation of natural gas pipeline |
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| LI Wei,CHEN XI-ping,MAO Hai-jie,PAN Wei. Investigation of method for leak detection and allocation of natural gas pipeline[J]. Journal of Lanzhou University of Technology, 2003, 29(4): 84-87 |
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| Authors: | LI Wei CHEN XI-ping MAO Hai-jie PAN Wei |
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| Abstract: | The use of negative pressure wave method in delivery pipelines of natural gas is investigated for their leak detection and allocation.The factors influencing the velocity of pressure wave propagation are analyses and a modified allocation formula is presented. Wavelet translation is also used to get the featured inflection point of pressure wave and suppress the noise for the signal of negative pressure wave as well. The accuracy and sensitivity of leak detection and allocation are improved with this method. |
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| Keywords: | leak detection and allocation negative pressure wave wavelet translation pipeline |
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