凝汽器铜管多频涡流检测

On-line Multi-frequency Eddy Current Detion of Condenser Brass Pipe

针对汉川电厂凝汽器铜管在运行中多次发生泄漏 ,利用差分内插式检测线圈 ,通过多频涡流检测技术对凝汽器进行涡流在役检测 ,有效地抑制了支撑板等干扰源信号 ,提高了检测灵敏度 ,使得检测结果更可靠。同时 ,通过解剖试验论证了涡流检测的准确性。

For the leakage often occured on condenser brass pipe of Hanchuan Power Plant,using differential inner insert detecting coil the on line multi frequency eddy current check technology effectively restrains interferance source signal from support board,etc,improves measuring sensitivity and the measuring result gets more reliable.At the same time,it has demonstrated the accuracy of eddy current detection throughdissection test.