基于电磁、声、光融合与LightGBM的换热管缺陷检测方法  

Defect Detection Method of Heat Exchanger Tubes Based on Electromagnetic,Acoustic,Optical Fusion and LightGBM

作　　者：魏巍 夏慧 沈川 兰雅雯 杨文辉 苗丕渝 伍剑波[2] WEI Wei;XIA Hui;SHEN Chuan;LAN Yawen;YANG Wenhuil;MIAO Piyu;WU Jianbo(Chengdu Institte of Special Equipment Inspection and Testing,Chengdu 610299,China;School of Mechanical Engmeering,Sichuan University,Chengdu 610065,China)

机构地区：[1]成都市特种设备检验检测研究院,成都610299 [2]四川大学机械工程学院,成都610065

出　　处：《无损探伤》2024年第5期21-25,共5页Nondestructive Testing Technology

基　　金：国家市场监督管理总局科技计划项目(2022MK153);四川省科技厅科技计划项目(2023YFS0413);四川省市场监督管理局科技计划项目(SCSJZ2023001)。

摘　　要：换热管检测是保证热交换器安全服役状态的重要环节,然而当前单一检测方式只能检查特定缺陷,不能实现换热管全断面腐蚀缺陷的综合检测;传统的诊断方式人工依赖程度高,不能对检测信号与信息进行充分挖掘和诊断。本文综合使用电磁、声学、光学三种检测方法,并将三种数据进行提取融合,提出一种LightGBM-LR诊断模型,对融合的检测数据进行诊断分析。试验结果表明,基于声光电融合与LightGBM的检测方法可以有效识别换热管通孔、环形槽等缺陷。The inspection of heat exchanger tubes is a crucial step to ensure the safety of heat exchangers.However,current single inspection method can only detect specific defects,and fail to achieve comprehensive detection of corrosion defects across the entire cross-section of heat exchange tubes.Traditional diagnostic methods rely heavily on manual judgment and cannot fully analyze and diagnose the signals and information.This paper proposes a LightGBM-LR diagnostic model by comprehensively utilizing the electromagnetic acoustic,optical methods,and integrating all the data obtained from these methods.Experimental results show that the detection method can effectively identify defects such as through-holes and annular grooves in heat exchange tubes.

关 键 词：换热管缺陷 电磁 超声导波 数据融合 LightGBM 

分 类 号：TG115.28[金属学及工艺—物理冶金]