井下瓦斯抽采管道泄漏的圆柱面定位算法研究

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英文篇名：Research on Cylindrical Surface Location Algorithm of Pipeline Leakage in Downhole Gas Extraction 作者：高琳 ; 赵利胜 ; 董红娟 英文作者：GAO Lin;ZHAO Li-sheng;DONG Hong-juan;School of Mechanical Engineering, Beijing University of Science and Technology;School of Mechanical Engineering, Inner-Mongolia University of Science and Technology;Shenhua Bayannaoer Energy Co., Ltd.;Research Institute of Mining, Inner-Mongolia University of Science and Technology; 关键词：管道泄漏 ; 声发射 ; 定位 ; 算法 英文关键词：pipeline leakage;;acoustic emission;;location;;algorithm 中文刊名：MTJS 英文刊名：Coal Technology 机构：北京科技大学机械工程学院;内蒙古科技大学机械工程学院;神华巴彦淖尔能源有限责任公司;内蒙古科技大学矿业研究院; 出版日期：2017-10-10 出版单位：煤炭技术 年：2017 期：v.36;No.286 基金：内蒙古自治区自然科学基金项目(2015BS0511;2017MS(LH0531)) 语种：中文; 页：MTJS201710044 页数：3 CN：10 ISSN：23-1393/TD 分类号：117-119

摘要

针对影响瓦斯抽采管道泄漏定位精度的传感器布置问题,提出一种当泄漏源不在2个传感器所在母线上的圆柱面定位新算法。首先利用小波包技术对泄漏声发射信号进行了降噪;再通过联立2个线定位公式的新算法对管道瓦斯泄漏进行了面定位。实验结果证明了该算法精度较高,可靠易行,能够满足井下瓦斯管道泄漏的实时精确定位的要求。
        For the problem of the sensor layout which affects the location accuracy of gas extration pipe line leakage, a new cylinderal location algorithm was developed as the leakage source is not at generatrix position where two sensors lie. First the leakage acoustic emission signals were denoised by wavelet packet technology, then plane location of pipe gas leakage was executed through the new algorithm as a simultaneous one of two line location equations. The test results proved this algorithm is accurate and reliable, which can meet the demands of real-time precise location for leakage of downhole gas pipe.

引文

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