Cause analysis of leakage failure of an induction heating bend pipe in a gas pipeline

Yan Xu; Yinglai Liu; Qiang Bai; Fengping Yang; Zhenjun Feng; Liang Li; Yonggang Chang

doi:10.1117/12.3015162

6 February 2024 Cause analysis of leakage failure of an induction heating bend pipe in a gas pipeline

Yan Xu, Yinglai Liu, Qiang Bai, Fengping Yang, Zhenjun Feng, Liang Li, Yonggang Chang

Proceedings Volume 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023); 1297944 (2024) https://doi.org/10.1117/12.3015162
Event: 9th International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 2023, Guilin, China

Abstract

As an important part of oil and gas pipelines, the quality and safety of bend pipes affect the safe operation of pipelines. In this paper, a case of a bending pipe leakage accident was tested and analyzed. Through non-destructive testing, physical and chemical property inspection, and defect anatomy analysis, it was found that the bending section of the bending pipe did not meet the standard requirements and the material was hard and brittle. It is concluded that the leakage of the bend pipe belongs to low-stress brittle failure. The main reasons for the failure of the bend pipe are improper material selection and unreasonable heating process, a hard and brittle martensitic structure formed in the bending section, deformation, and reduced bearing capacity.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yan Xu, Yinglai Liu, Qiang Bai, Fengping Yang, Zhenjun Feng, Liang Li, and Yonggang Chang "Cause analysis of leakage failure of an induction heating bend pipe in a gas pipeline", Proc. SPIE 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 1297944 (6 February 2024); https://doi.org/10.1117/12.3015162

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