Detection device for pipe corrosion conditions

Abstract

The invention relates to a detection device for pipe corrosion conditions. Two groups of clamping rings each with an upper semi-ring and a lower semi-ring are installed outside of a pipe, one end of the clamping ring is hinged and connected, the other end of the clamping ring is open and provided with a gap, an upper connecting plate and a lower connecting plate are disposed along an axial direction and are fastened by using bolts, an upper handle, a lower hinge mechanism and the like. The upper semi-ring can make an opening and closing rotation to realize surrounding and clamping from the middle portion; the bolts can be rotably clamped, are very simple in assembly and disassembly and have large clamping force and high stability. Wheels capable of rolling on an axial direction of the pipe can be disposed in the clamping ring. The detection device shifts in the axial direction without disassembly and has high efficiency. If an electric motor is employed, an operator can stay away from a ray source. An upper telescopic frame is arranged and supported by an X-ray machine and a lower telescopic rod is fixed on a detection flat plate. The two positions can be adjusted, so that the ray direction and the detection flat plate blow the pipe can be vertically opposite so as to image accurately. The X-ray machine has long service life and good performance. The detection flat plate has uniform sensitivity and resolution, and a large dynamic range. The optimized detection device specialized for corrosion conditions at the bottom of the pipe provided by the invention is suitable for the detection of in service pipes lain in a trench or on the ground.

Description

(1) Technical field: [0001] The utility model relates to a pipeline corrosion state detection device, which belongs to pipeline detection equipment. It belongs to measurement category (G01N) and pipeline category (F17D). (2) Background technology: [0002] Pipeline transportation is an economical, efficient, clean and safe way to solve energy transportation problems. After more than 100 years of development, pipelines have become a huge oil and gas energy transportation tool worldwide. However, due to the long-term use of such pipelines, a series of problems such as corrosion, rust, and small cracks are prone to occur around the pipeline, especially at the bottom of the pipeline. Due to the particularity of the pipeline in service, it is difficult for the detection device to be inserted and installed from both ends of the pipeline, and it is required to install and clamp the middle section of the pipeline as much as possible, which brings certain difficulties to the clampi...

AI Technical Summary

Problems solved by technology

[0006] The pipeline corrosion detection device provided by the present invention solves the problem that the "pipeline weld X-ray omnidirectional detection device" in the prior art is difficult to be directly used in the "pipeline corrosion detection", which not only has a complex structure, but also has low clamping force, The disassembly and assembly of the clamping device is cumbersome, the workload of the manual movement of the flaw detection equipment is large, and the work efficiency is low. The purpose is to provide a detection device dedicated to the corrosion of the bottom of the pipeline.

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