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Kuan Fu

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Proceedings Article | 5 June 2024 Paper

Mechanical structure design and simulation of multi-physical field integrated pipeline internal inspection detector

Jie Huang, Pengchao Chen, Rui Li, Kuan Fu, Yanan Wang, Jingyao Duan

Proceedings Volume 13163, 1316313 (2024) https://doi.org/10.1117/12.3030638

KEYWORDS: Sensors, Magnetism, Inspection, Design, Defect detection, Electromagnetic simulation

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This paper addresses circumferential weld cracking in oil and gas pipelines, a primary form of pipeline failure. To achieve scientific and effective management of the entire process, all regions, and throughout the entire life cycle of the high-grade steel pipeline, a novel multi-physical field ultra-high-definition pipeline comprehensive condition inspection device has been designed and developed. The device incorporates a dual-array structured composite electromagnetic probe, operating at a 5K frequency, to real-time capture magnetic leakage and eddy current signals, enabling the detection of minute defects such as cracks and pinholes in circumferential welds. Additionally, integrated probes for diameter measurement, stress assessment, and orientation evaluation allow for a comprehensive assessment of pipeline deformation, stress, and orientation. Finite Element Analysis is applied to the mechanical structure of the detector to validate its design rationale and safety. Structural strength simulation results indicate that the design of the multi-physical field ultra-high-definition pipeline comprehensive condition inspection device is reasonable, enabling it to undertake inspection tasks for large-diameter, high-grade, high-pressure, long-distance pipelines with pressures ranging from 8 to 12 MPa. This device fills a technological gap in both domestic and international markets for the composite detection of minute defects in large-diameter, high-grade pipelines.

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