石油化工设备技术 ›› 2022, Vol. 43 ›› Issue (6): 32-35,40.doi: 10.3969/j.issn.1006-8805.2022.06.008

• 状态监测与分析 • 上一篇    下一篇

在线声发射技术在储罐底板泄漏检测中的应用

王 十1,2,邓 进1,2,邢 述1,2,王彦龙3,都 亮1,2   

  1. 1. 中国特种设备检测研究院,北京 100029;
    2. 国家市场监管技术创新中心(油气管道与储存设备安全),北京 100029;
    3. 中国石化海南炼油化工有限公司,海南 578101
  • 收稿日期:2022-09-18 接受日期:2022-10-31 出版日期:2022-11-17 发布日期:2022-11-17
  • 通讯作者: 都 亮 E-mail:wangshi@csei.org.cn
  • 作者简介:王十,男, 2012年毕业于北京石油化工学院过程装备与控制工程专业,学士,主要从事常压储罐检验检测、风险评估、完整性评价、合于使用评价等专业方面的研究工作,工程师。
  • 基金资助:
    国家重点研发计划项目(2019YFB1310700)面向国家石油战略储备库安全的储罐检测机器人研究及应用课题5“国家石油战略储备库的储罐检测机器人系统应用(2019YFB1310705)”

Application of Online Acoustic Emission Technology in Leakage Detection of Storage Tank Bottom Plate

Wang Shi1,2, Deng Jin1,2, Xing Shu1,2, Wang Yanlong3, Du Liang1,2   

  1. 1. China Special Equipment Inspection and Research Institute, Beijing, 100029, China;
    2. Technology Innovation Center of Oil and Gas Pipeline and Storage Equipment Safety for State Market Regulation, Beijing, 100029;
    3. SINOPEC Hainan Petrochemical Co., Ltd., Hainan, 578101
  • Received:2022-09-18 Accepted:2022-10-31 Online:2022-11-17 Published:2022-11-17
  • Contact: Du Liang E-mail:wangshi@csei.org.cn

摘要: 某石化公司储罐基础检漏孔有油污流出,初步判断原因为底板泄漏。为快速确定泄漏位置,对罐底板进行声发射检测,利用时差定位分析初步确定泄漏大致范围;清罐后,对该区域罐底板母材部位进行漏磁检测,并对焊缝部位进行真空试漏、磁粉等无损检测,最终确定导致泄漏的缺陷位置。根据罐内腐蚀情况并结合沉降检测结果,确认泄漏原因为基础刚性倾斜条件下由于沉积水的作用导致储罐底板发生腐蚀穿孔。文章针对上述分析结果提出了维护和后续使用建议。

关键词: 常压储罐, 泄漏检测, 声发射, 漏磁, 腐蚀

Abstract: There is greasy dirt flowing out of the leak detection hole of the tank foundation in a petrochemical company, and it is suspected that the bottom plate has leaked. For quick determination of the leakage area, acoustic emission detection is carried out and the initial location of the leakage area is determined through location by difference of times. After the replacement of the medium, magnetic leak detection is carried out on the bottom plate of the tank, and other non-destructive tests such as vacuum leak testing and magnetic powder inspection are carried out on the weld parts. Finally, the location of the defect causing the leakage is determined. According to the corrosion situation in the tank and combined with the results of the settlement detection, the cause of the leak is confirmed to be the corrosion perforation of the tank bottom plate due to the action of deposited water under the condition of rigid inclination of the foundation. The maintenance and follow-up recommendations for operation are presented according to the results of the above analysis.

Key words: atmospheric storage tank, leak detection, acoustic emission, MFL, corrosion