Method and Apparatus for Determining the Health and Remaining Service Life of Austenitic Steel Reformer Tubes and the Like

摘要

Testing methods and apparatus for testing the health of steel tubes used in reformers and other tubes and pipes used in other high temperature applications are provided. The method includes the steps of transmitting two sinusoidal electromagnetic signals, each having a different frequency F1 and F2, into the reformer tube, receiving a response signal, and analyzing the received response signal's intermodulation frequencies to determine the state of the steel reformer tube.

主权项

1. A method of testing an austenitic steel reformer tube comprising:
providing a sample austenitic steel reformer tube to be tested; choosing one or more testing positions on said austenitic steel reformer tube; transmitting two sinusoidal electromagnetic signals, each magnet having a different frequency F1 and F2, respectively, into a test position on the austenitic steel reformer tube; receiving a response signal from said test position; and analyzing said received response signal's fundamental and intermodulation frequencies to determine a state of the austenitic steel reformer tube at said test position.