基于声波法的天然气管道泄漏检测与定位系统研究  

Natural Gas Pipeline Leakage Detection and Location System Based on Acoustic Wave Method

作　　者：韩宝坤[1] 蒋相广 刘西洋[1] 纪瑶 鲍怀谦[1] HAN Baokun, JIANG Xiangguang, LIU Xiyang, JI Yao, BAO Huaiqian(College of Mechanical and Electrical Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, Chin)

机构地区：[1]山东科技大学机械电子工程学院,山东青岛266590

出　　处：《山东科技大学学报（自然科学版）》2018年第4期102-110,共9页Journal of Shandong University of Science and Technology(Natural Science)

基　　金：山东省自然科学基金项目(ZR2012AM011)

摘　　要：天然气因清洁、安全、经济,渐渐成为主流能源。但是人为与非人为因素导致的泄漏事故时有发生。为提高天然气管道运输安全,采用多软件联合仿真并结合实验研究的方法,探究一条低成本检测与定位天然气管道泄漏的新途径。声源仿真基于气动声学中偶极子与四极子声源理论,信号处理基于小波变换理论,泄漏检测与定位基于时延定位法。在仿真实验的基础上,搭建实验台,通过仿真与实验相结合,验证此方法的可行性。结果表明,运用多软件联合仿真声源数据的方法,捕捉定位泄漏声源,研究管道安全问题,可以减少实验次数,提高检测效率,为后期实际工程应用提供理论依据。Natural gas has gradually become the mainstream energy for its cleanness, safety and economy. However, leakage accidents occur frequently clue to human and natural factors. In order to improve the safety of natural gas pipeline transportation, a new method of low cost detection and location of natural gas pipeline leakage was explored by using multi software co simulation and experimental research. The theory of dipole and quadrupole sound source in aero acoustics was adopted in simulating sound source; wavelet transform theory was adopted in processing sig nals; and time delay localization method was adopted in detecting and locating leakage. An experimental platform was built on the basis of simulation experiment and the proposed method was verified by combining simulation and experiment. Results show that the multi software sound source simulation method can reduce the number of experi ments and improve detection efficiency in capturing leakage sound source and researching pipeline safety issues, thus providing theoretical and preliminary preparations for practical engineering application in the later stage.

关 键 词：管道泄漏 声波法 联合仿真 LABVIEW 互相关 小波变换 多算法融合 

分 类 号：TE8[石油与天然气工程—油气储运工程]