Pipeline pipe hole inner wall transverse crack detection device and method based on time-of-flight diffraction method

• Main Authors: GUO DERUI, LIU YONGCHAO, YANG ZHIBO, LIU YANRU, GAO KAI, TU GA, LIU YANG, WANG QINGFENG, ZHOU HAO, LI JINGXIN
• Format: Patent
• Language: Chinese; English
• Published: 15.03.2024
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention relates to the technical field of ultrasonic pipeline crack detection, in particular to a pipeline hole inner wall transverse crack detection device and method based on a time-of-flight diffraction method. Comprising a width adjusting rod, length adjusting rods vertically arranged on the two sides of the width adjusting rod, a connecting rod used for connecting the width adjusting rod and the length adjusting rods, and a probe clamping assembly arranged at the ends, away from the width adjusting rod, of the length adjusting rods and used for clamping a transmitting probe and a receiving probe. And respectively scanning the pipe hole and the belly area of the pipe hole along the circumferential direction and the axial direction of the pipeline, carrying out defect classification on defect images according to image defect display types, and measuring the defect images to obtain defect parameters of cracks on the inner wall of the pipe hole of the pipeline. According to the detection device, the re