连续油管缺陷漏磁激励线圈结构优化设计
Optimized Design of Magnetic Flux Leakage Excitation Coil Structure for Coiled Tubing Defect Detection
DOI: 10.12677/met.2025.144047, PDF,    科研立项经费支持
作者: 黄成橙, 王 轲, 王 鹏*：长江大学机械工程学院，湖北 荆州
关键词: 连续油管；漏磁检测；优化设计；响应面法；Coiled Tubing； Magnetic Flux Leakage； Optimization Design； Response Surface Methodology
摘要: 含缺陷连续油管存在极大安全隐患，对其进行定期检测是降低安全隐患的重要手段。目前，漏磁检测是运用最为广泛、技术最为成熟的无损检测技术，连续油管漏磁检测技术存在磁化效率低、遗漏小缺陷等问题。为了提高被测件磁化强度，增强缺陷漏磁信号的畸变量，基于亥姆霍兹线圈磁场叠加原理与实际工况，提出了一种C型双线圈激励结构的漏磁检测方案，通过有限元仿真和单因素分析法，系统地研究了激励线圈结构参数对缺陷漏磁信号的影响规律，梳理出其中的关键影响因素及影响水平，并运用响应面法对激励线圈结构参数进行了优化设计，优化后结构对缺陷漏磁信号的畸变量提升了29%以上，可为连续油管缺陷检测提供理论依据与技术支撑。
Abstract: Defective coiled tubing poses significant safety risks, making regular inspection an important measure to reduce hazards. Currently, magnetic flux leakage (MFL) testing is the most widely used and technically mature non-destructive testing (NDT) method. However, coiled tubing MFL testing faces issues such as low magnetization efficiency and missed small defects. To enhance the magnetization intensity of the tested component and increase the signal peak-to-peak value of defect MFL signals, a C-type dual-coil excitation structure is proposed based on the magnetic field superposition principle of Helmholtz coils and actual operating conditions. Through finite element simulation and single-factor analysis, the influence of excitation coil structural parameters on defect MFL signals is systematically investigated. Key influencing factors and their levels are identified, and the excitation coil structure is optimized using response surface methodology (RSM). The optimized structure improves the signal peak-to-peak value by more than 29%, providing theoretical basis and technical support for coiled tubing defect detection.
文章引用：黄成橙, 王轲, 王鹏. 连续油管缺陷漏磁激励线圈结构优化设计[J]. 机械工程与技术, 2025, 14(4): 476-490. https://doi.org/10.12677/met.2025.144047

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