中国安全科学学报 ›› 2020, Vol. 30 ›› Issue (8): 31-36.doi: 10.16265/j.cnki.issn1003-3033.2020.08.005

• 安全工程技术 • 上一篇    下一篇

大型储罐底板浸入式声学检测方法及样机设计

张颖1 教授, 高俊伟2, 朱子东3, 刘识3, 张潇1   

  1. 1 常州大学 环境与安全工程学院,江苏 常州 213164;
    2 东北石油大学 机械科学与工程学院,黑龙江 大庆 163318;
    3 沈阳龙昌管道检测中心,辽宁 沈阳 110168
  • 收稿日期:2020-05-12 修回日期:2020-07-16 出版日期:2020-08-28 发布日期:2021-07-15
  • 作者简介:张 颖 (1972—),男,黑龙江北安人,博士,教授,主要从事无损检测与结构完整性评价等方面的研究。E-mail:aezy163@163.com。
  • 基金资助:
    国家“十三五”国家重点研发计划课题项目(2017YFC0805804);江苏省市场监督管理局科技计划项目(KJ207515);常州大学科研启动项目(ZMF19020313)。

Immersion acoustic detection method of large storage tank bottom plates and prototype design

ZHANG Ying1, GAO Junwei2, ZHU Zidong3, LIU Shi3, ZHANG Xiao1   

  1. 1 School of Environmental and Safety Engineering, Changzhou University, Changzhou Jiangshu, 213164, China;
    2 College of Mechanical Science and Engineering, Northeast Petroleum University, Daqing Heilongjiang 163318, China;
    3 Shenyang Longchang Pipeline Testing Center, Shenyang Liaoning 110168,China
  • Received:2020-05-12 Revised:2020-07-16 Online:2020-08-28 Published:2021-07-15

摘要: 为实现大型储罐底板腐蚀的全域在线检测,提出一种浸入式声学检测方法。向储罐底板投放配有液浸式声学传感器的浸入式检测仪,控制其按预设路径行走,分单元采集罐底腐蚀声信号;结合采集的腐蚀声信号,运用平面小基阵单元算法定位罐底腐蚀声源;基于检测仪功能需求设计浸入式自动声学样机,该样机主要包括运动模块、检测模块及回收模块,具有自动全域检测、采集信号、定位腐蚀源及自行回收等功能;最后将该定位算法用于模拟储罐声源定位试验。结果表明:使用平面小基阵算法对模拟储罐声源定位的精度误差在0.2%以内,且定位精度不受声源角度的影响。

关键词: 大型储罐, 浸入式声学检测, 腐蚀声源, 声发射传感器, 全域检测

Abstract: In order to achieve global detection of corrosion on bottom plates of large storage tanks, an immersion acoustic detection method was proposed. Firstly, the detector equipped with liquid immersion acoustic sensors was put on bottom plates, and was controlled to move following specified path so as to collect acoustic corrosion signals of tank bottom by units. Secondly, building on collected signals, corrosion sound source was located by using plane small array unit algorithm. Thirdly, based on functional requirements of detectors, prototype of an automatic immersion acoustic detector was designed which mainly included motion module, detection module and recovery module with functions of automatic global inspection, signal collection, location of corrosion sources, and self-recovery. Finally, this localization algorithm was applied in a simulated storage tank sound source localization test. The results show that positioning accuracy of plane small base array algorithm is within 0.2% and it is not affected by angle of sound source.

Key words: large storage tank, immersion acoustic detection, sound source of corrosion, acoustic emission sensor, global detection

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