测控技术2025，Vol.44Issue(2)：1-10,17,11.DOI:10.19708/j.ckjs.2024.08.253
基于柔性永磁扰动的压裂管汇管外无损检测系统
Flexible Permanent Magnetic Field Perturbation-Based Nondestructive Testing System for Fractured Manifolds Outside Pipe
摘要
Abstract
As the most important construction component in oil and gas exploitation and transportation opera-tion,the fractured manifold carries high pressure,high displacement and highly corrosive fluid for a long time.To ensure the safe service of the fractured manifold,it is urgent to develope a nondestructive testing(NDT)sys-tem for fractured manifolds outside the pipe.Permanent magnetic field perturbation as a novel NDT approach,offers benefits such as a lightweight probe,omni-directionality,and high sensitivity to corrosion defects,making it ideal for surface defect detection in fracturing manifold sumps.Nonetheless,challenges like signal variance due to probe-separation changes,inconsistent array performance,and limited ability to detect various defect shapes remain.The flexible magnetic sheet is used to an innovative substitute for rigid rare-earth permanent magnets.Because the residual magnetic strength of the flexible magnetic sheet is far less than that of the rare-earth magnetic,the structure of the flexible magnetic sheet is optimized by processing though groove,and the magnetic field distribution is improved.Coupled with arrayed Hall sensors,the system facilitates array-based detection.To realize the automatic inspections of the fractured manifolds outside pipe,an external inspection system is developed.The"screen"struction is taken as the chassis,the tri-valve tile probes is taken as the in-spection module,multi-channel direct current amplification system and signal acquisition system are equipped with,and the"step by step"motion sweep mode is used to realize the automatic nondestructive inspection out-side the pipe.Initial tests indicate the system can effectively detect in identifying axial,circumferential,and flat-bottomed hole defects for fractured manifold outside pipe.关键词
无损检测/永磁扰动检测/管道外检测/压裂管汇/柔性传感器Key words
nondestructive testing/permanent magnetic field perturbation inspection/out-of-pipe inspection/fractured manifold/flexible sensors分类
机械工程引用本文复制引用
胡昱,高一鸣,常飞,康宜华,王俊,林耀军..基于柔性永磁扰动的压裂管汇管外无损检测系统[J].测控技术,2025,44(2):1-10,17,11.基金项目
国家自然科学基金(52130504) （52130504）
中石化重大研究课题(JP22056) （JP22056）
