Study on Rapid Ultrasonic Guided Wave Inspection Technology for Defects and Damages on Boiler Tubes in Complex Operation Environment

The feasibility of detecting circumferential defects of inner and outer walls of boiler tubes through the ultrasonic guided wave technology was verified through a test with probes with different guided wave modes and different frequencies in this paper. In addition, sampling inspection was performed to the T91 tube section of a high temperature reheater of the No. 1 furnace of the Power Plant in Youxian County at the infrastructure construction phase through ultrasonic guided wave detection, which verified that the detection technology has the advantages of small on-site grinding workload, low inspection workload and low work intensity on site.