Pipeline welding line radiographic inspection device

Abstract

The invention discloses a pipeline welding line radiographic inspection device. A mounting base frame and a hinging connector are connected to form a whole body by a thread to be used as a basic carrier. One end of a retractable acting cylinder is connected with the mounting base frame by a bolt and the other end of the retractable acting cylinder is connected with an outer ring locking mechanism by a bolt; and under the action of the retractable acting cylinder, the outer ring locking mechanism rotates along the axis of a pipeline. An inner ring connection mechanism is connected with the outer ring locking mechanism by a friction wheel and a pressing device; and a circling motion rail is fixed on the outer ring locking mechanism by a screw. A motor speed reducer assembly is connected with the inner ring connection mechanism by a screw. An X-ray generator and a flat plate detector are connected with the inner ring connection mechanism by screws to move on the circling motion rail along the inner ring connection mechanism around the axis of the pipeline. A camera is connected with the mounting base frame by a screw so that a working state and a preserved position of the mechanism are convenient to observe in real time. An infrared positioning detector is connected with the mounting base frame by a screw. According to the pipeline welding line radiographic inspection device, the working efficiency can be improved, the labor intensity is alleviated, the cost is saved, and the compatibility and the environment adaptability are good.

Description

technical field [0001] The invention relates to a flaw detection device, in particular to a pipeline weld seam radiation flaw detection device. Background technique [0002] For pipeline weld seam welding, the equipment is usually placed outside, that is, the welding operation is performed on the outside of the pipeline. [0003] For pipeline weld flaw detection, it is generally divided into two situations: source-in and source-out. [0004] As far as the source is concerned, the X-ray source is located inside the pipeline, and the movement and positioning of the X-ray source are realized by the crawler. [0005] As far as the source is outside, the X-ray source is located outside the pipeline, and the movement and positioning of the X-ray source are realized together with the detector. [0006] No matter where the X-ray source is located in the pipeline, for the imaging system, it is necessary to realize the 360° circular motion of the detector to detect the welding quali...

AI Technical Summary

Problems solved by technology

This method has accurate positioning and stable motion, which can meet the motion technical requirements of X-ray imaging, but the structure is complex, the workload of on-site disassembly and transfer is large, the labor intensity is high, the efficiency is greatly limited, and the adaptability to harsh environments is poor.

[0010] Existing pipeline weld seam scanning equipment is bulky, complex in structure, not well adapted to the environment, and requires a large number of manual auxiliary operations, and the efficiency is not too high. Especially for areas with harsh environments, it is difficult to operate, and it also increases testing cost

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