Piezoelectric ultrasonic technology can effectively detect various cracks and crack-like defects in pipelines.It has been widely used in the in-line inspection of oil pipeline defects due to its advantages of high detection sensitivity and accuracy.This paper analyzes and presents the fundamental principles of piezoelectric ultrasonic in-line inspection technology.It provides an overview of the development of this technology by major well-known in-line inspection companies abroad,as well as an introduction to the technical characteristics and performance of their equipment.Additionally,the paper summarizes the current status of piezoelectric ultrasonic in-line inspection technology in China and the future development direction of this technology.It offers insights and recommendations on the advancement of this technology in inspecting long-distance pipelines in China.
关键词
压电超声技术/油气管道/内检测/裂纹/类裂纹缺陷
Key words
piezoelectric ultrasonic technology/oil and gas pipeline/in-line inspection/crack/crack-like defect