水冷壁管腐蚀脉冲涡流检测聚焦探头特性研究  

Characteristics of Focusing Probe in Pulsed Eddy Current Detection of Water-Wall Tube Corrosion

作　　者：陶爱军 杨帆 付跃文[1] 黄文丰 邢仁飞 汤陈怀[2] 曹爱松 TAO Aijun;YANG Fan;FU Yuewen;HUANG Wenfeng;XING Renfei;TANG Chenhuai;CAO Aisong(Key Laboratory of Nondestructive Test of Ministry of Education,Nanchang Hangkong University Nanchang,330063,China;Shanghai Special Equipment Supervision and Inspection Technology Shanghai,200062,China;Foshan Metro Operation Co.,Ltd.Foshan,528000,China)

机构地区：[1]南昌航空大学无损检测技术教育部重点实验室,南昌330063 [2]上海市特种设备监督检验技术研究院,上海200062 [3]佛山市地铁运营有限公司,佛山528000

出　　处：《振动.测试与诊断》2025年第2期367-375,416,417,共11页Journal of Vibration,Measurement & Diagnosis

基　　金：国家自然科学基金资助项目(52067016)。

摘　　要：为了解决水冷壁管向火面腐蚀减薄检测时聚焦探头不同摆放方式影响检测灵敏度的问题,从数值仿真与试验两方面进行分析。首先,在仿真中对传统圆柱形激励线圈径向、横向、纵向摆放方式时水冷壁管中的涡流形态及磁通密度分布进行分析,对xyz三维磁通量进行定量计算来判断检测灵敏度;其次,在试验中使用隧道磁阻传感器作为探头接收单元,分别计算每种激励线圈摆放方式下xyz三维检测灵敏度;最后,引入加权秩和比法对3种激励摆放方式进行优劣排序。结果表明,聚焦探头3种摆放方式中横向摆放具有最优的检测效果,该研究有助于水冷壁管检测的高灵敏度脉冲涡流探头的设计,可进一步提高水冷壁管腐蚀检测灵敏度。To address the challenge that different focusing probe orientations affect detection sensitivity during fire-side corrosion thinning inspection of waterwall tubes,this study combines numerical simulations and experimental validation.Numerical simulations analyze eddy current morphology and the magnetic flux density distribution in water-wall tube under radial,transverse and longitudinal orientations of cylindrical excitation coils.Quantitative xyz-axis magnetic flux calculations determine three-dimensional detection sensitivity metrics.Experimental measurements employ tunnel magnetoresistance sensors to quantify three-dimensional(xyz) detection sensitivity across coil orientation configurations.A weighted rank sum ratio method evaluates and ranks the performance of the three excitation orientations.The results show that the transverse probe orientation achieves superior detection performance compared to radial and longitudinal configurations.The findings provide critical insights for designing high-sensitivity pulsed eddy current probes,significantly enhancing corrosion detection capabilities in waterwall tubes.

关 键 词：脉冲涡流 检测灵敏度 加权秩和比 聚焦探头 水冷壁管 

分 类 号：TG115.28[金属学及工艺—物理冶金] TH878[金属学及工艺—金属学]