基于扰动涡流分析的中冷器故障诊断方法  

Research on Fault Diagnosis of the Cooler Based on Disturbed Eddy Current Analysis

作　　者：宋树波[1] 王海波[1] 林红伟[2] 

机构地区：[1]吉林化工学院,吉林吉林132022 [2]吉林市特种设备检验中心,吉林吉林132013

出　　处：《压缩机技术》2014年第4期58-60,共3页Compressor Technology

摘　　要：阐述了感应线圈测出由缺陷引起电流扰动导致的磁通变化的理论方法。制作了奥氏体不锈钢材质焊接试块,对焊缝缺陷深度与图形幅值大小之间的关系进行了分析,讨论了影响检测信号的因素和规律。通过试验及检测表明,此方法可以将缺陷检测出来并能确定深度,满足工程检测的要求。In this paper,theoretical method of induction coil to measure magnetic flux changes is introduced,the magnetic flux changes is caused by current disturbance to the defect.An austenitic stainless steel welding test block is made,the relationship between the depth of the weld defect and graphic amplitude size is analyzed,and the effect factors and laws on signal detection is discussed.Through practical testing,it shows that the flaws could be checked out and the depth could be predicted by this method.It meets the requirements of engineering testing.

关 键 词：扰动涡流 故障诊断 中冷器 焊缝 

分 类 号：TK414.2[动力工程及工程热物理—动力机械及工程] TH45[机械工程—机械制造及自动化]