EXPLOSION-PROOF ELECTROMAGNETIC ULTRASONIC OIL AND GAS PIPELINE CORROSION THINNING ON-LINE DETECTION SYSTEM AND METHOD

摘要

An explosion-proof electromagnetic ultrasonic oil and gas pipeline corrosion thinning on-line detection system and method, which use an explosion-proof electromagnetic ultrasonic detection system consisting of an explosion-proof tank (1), a high-speed data acquisition module, an excitation module, an infinite transmission module (3), and an explosion-proof electromagnetic ultrasonic transducer (8). Ultrasonic transverse waves are excited in a pipeline to be detected by utilizing the system, and the transverse waves propagate along the thickness direction of the pipeline. Ultrasonic waves reflected by the inner wall of the pipeline are received in a self-transmitting and self-receiving manner, and the thickness of the pipeline is calculated according to time duration of the ultrasonic waves propagating in the pipeline and the calibrated wave velocity. Thickness data of the pipeline is transmitted to a server in real time in a wireless transmission manner, and online detection of corrosion thinning of the pipeline in an explosive environment is achieved.