在线声发射技术在储罐底板泄漏检测中的应用

doi:10.3969/j.issn.1006-8805.2022.06.008

Petro-chemical Equipment Technology ›› 2022, Vol. 43 ›› Issue (6): 32-35，40.doi: 10.3969/j.issn.1006-8805.2022.06.008

• CONDITION MONITORING AND ANALYSIS • Previous Articles Next Articles

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

Wang Shi^1，2, Deng Jin^1，2, Xing Shu^1，2, Wang Yanlong³, Du Liang^1，2

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

Abstract

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

Wang Shi, Deng Jin, Xing Shu, Wang Yanlong, Du Liang. Application of Online Acoustic Emission Technology in Leakage Detection of Storage Tank Bottom Plate[J].Petro-chemical Equipment Technology, 2022, 43(6): 32-35，40.

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

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