Digital Radiographic Inspection System for Pipeline Girth Weld

Abstract

The invention is a pipeline girth weld digital ray detection system for pipeline girth weld detection. The industrial computer and the communication converter are connected by a network cable, and the communication converter is connected to the area detector through a cameralink cable; the industrial computer is connected to the magnetic induction transmitter by RS232, and the magnetic induction transmitter is connected to the magnetic induction receiver by emitting electromagnetic field signals to send to the PLC in the tube. Issue exposure, forward, and backward commands; PLC is connected to the ray tube and the solenoid valve of the travel motor through the control cable; the industrial computer is also connected to the servo driver through the RS232 communication line, the servo driver connected with the encoder is connected to the DC servo motor, and the DC power supply is connected to the DC servo motor. Servo driver, DC servo motor and encoder are connected to supply power for them; one output of PLC is connected to the input of the power controller, the output of the power controller is connected to the ray tube, and the output of the PLC is connected to the ray tube and the start-stop control electromagnetic of the crawler in the tube. valve.

Description

technical field [0001] The invention relates to a digital ray detection system for pipe girth welds and relates to the technical fields of X-ray technology and pipeline systems. Background technique [0002] At present, radiographic film imaging is widely used in pipeline girth weld inspection. Film imaging not only wastes a lot of film, but also cannot realize real-time imaging and electronic storage. The pipeline girth weld digital ray inspection technology realized by area array detector overcomes the above shortcomings, has real-time imaging, computer image processing and analysis functions, and meets the needs of digital pipeline construction. However, the pipeline digital radiography equipment that has been developed now is to fix the ray source and the area array detector on both sides of the girth weld to use double-wall transmission radiography. For thick-walled pipelines, the image is not clear when the ray energy is low, and the ray energy is high. It is easy to ...

AI Technical Summary

Problems solved by technology

However, the pipeline digital radiography equipment that has been developed now is to fix the ray source and the area array detector on both sides of the girth weld to use double-wall transmission radiography. For thick-walled pipelines, the image is not clear when the ray energy is low, and the ray energy is high. It is easy to damage the imaging array, which is not conducive to the popularization and application in pipeline construction

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