Comparison of ET, IRIS and DUET testing in corrosion detection of heat exchanger tube bundle

In order to detect the corrosion of the tube bundle of heat exchanger, a batch of sample tubes are made according to the material and specification of the tube bundle of heat exchanger. The ET, IRIS and DUET are used to test the sample tubes. Through the comparative analysis of the testing results and application, the applicability of the three testing methods is clarified, which provides technical support for the onsite inspection of the tube bundle of heat exchanger.