压力容器2025，Vol.42Issue(12)：72-81,10.DOI:10.3969/j.issn.1001-4837.2025.12.009
基于正交励磁的小口径三维漏磁检测器研制及工业测试
Development and industrial testing of a small‑diameter three‑dimensional magnetic flux leakage detector based on orthogonal excitation
摘要
Abstract
In response to the problems such as limited working space and poor bend passage capability existing in the current detection equipment for small‐diameter pipeline(DN≤200 mm),based on orthogonal excitation technology,a three‐dimensional magnetic flux leakage detector suitable for the pipeline with a diameter of ⌀159 mm was designed.The results show that the detector can pass through a 1.5D外径 elbow,and establish a two‐dimensional axisymmetric finite element analysis model to analyze the magnetization capability of the magnet assembly in both static and dynamic conditions.This magnet assembly can magnetize the tested pipeline to above 1.6 T.Through industrial pipeline testing,the detection ability and magnetization capability of the detector are verified.And through excavation verification,it is proved that the designed detector,in a non‐saturated magnetization state,has a high detection accuracy for pipeline metal loss defects:the length accuracy reaches±10 mm;the width accuracy reaches±10 mm;the depth accuracy reaches±10%of the normal wall thickness of the inspected pipeline.The research can provide a reference for the development and detection of small‐diameter pipeline detectors.关键词
漏磁检测/正交励磁/非饱和磁化/工业应用Key words
magnetic flux leakage detection/orthogonal excitation/non‐saturated magnetization/industrial application分类
机械制造引用本文复制引用
臧延旭,刘振坤,郭鶱,刘云杰,韩佳承,邱士全..基于正交励磁的小口径三维漏磁检测器研制及工业测试[J].压力容器,2025,42(12):72-81,10.基金项目
北华航天工业学院科研课题(JX-2023-08-H) （JX-2023-08-H）
廊坊市科技支撑计划项目(2022011070) （2022011070）
