Application of non-contact magnetic corresponding on the detection for natural gas pipeline

Autor: Zeng Weiguo, Dang Xiaofeng, Li Shuhua, Wang Hongmei, Wang Hao, Wang Bo
Jazyk: English<br />French
Rok vydání: 2020
Předmět:
Zdroj: E3S Web of Conferences, Vol 185, p 01090 (2020)
Druh dokumentu: article
ISSN: 2267-1242
20201850
DOI: 10.1051/e3sconf/202018501090
Popis: This study examined natural gas pipeline by the non-contact magnetic corresponding. To confirm the reliability for the examination of natural gas pipelines by non-contact magnetic corresponding, three abnormal nodes were detected by the appearance inspection and ultrasonic testing. The results suggested that the grade of abnormal nodes by non-contact magnetic corresponding were not absolutely agree with that of the corrosion by ultrasonic testing. However, there was an obvious relevance between the comprehensive index of F by non-contact magnetic corresponding and the maximum degree of corrosion by ultrasonic testing. To sum up, the magnetic corresponding was an effective non-contact detection technology for the natural gas pipeline, while it was necessary to rationally grade the abnormal node according to the comprehensive index of F.
Databáze: Directory of Open Access Journals