Special gamma ray detection tool for small diameter tube butt joints

Abstract

The invention discloses a special gamma ray detection tool for small diameter tube butt joints. The tool comprises a gamma ray source fixing mechanism, an adjusting mechanism and a fastening mechanism. The gamma ray source fixing mechanism comprises a fixing sleeve, a lead shield fixing plate, a source support arm and fastening bolts, and the adjusting mechanism comprises a horizontal support arm, a vertical support arm, an adjusting support arm, an upper sliding sleeve and a lower sliding sleeve. The fastening mechanism comprises a sliding balance plate, two fastening bolts, a center point adjusting slider, a sizing slider, a screw-type connecting hook and a locking chain. The tool has the advantages that the tool is flexible, convenient and reliable, detection efficiency is improved greatly, detection period is shortened, number of auxiliary personnel is reduced, labor cost is saved, detection quality is guaranteed, detection radiation is reduced, and personnel safety protection is heightened.

Description

technical field [0001] The invention relates to a detection tool for butt joints of pipes, in particular to a special tool for gamma ray detection of butt joints of small-diameter pipes. Background technique [0002] In recent years, the state's investment in environmental protection has gradually increased, and the upgrading of the industrial quality of the petroleum and chemical industries has also accelerated; the management level, personnel quality, and mechanization level of the construction team have also been greatly improved. It is not a legend that 10,000 tons of ethylene can be built within one to two years. As a testing unit specializing in petroleum and chemical construction and installation, it is still inseparable from the traditional testing technology—ray testing (х, gamma rays). As far as X-ray inspection is concerned, the equipment is bulky, easily damaged, and the maintenance cost is high. High-altitude fixed transillumination depends on the appropriate...

AI Technical Summary

Problems solved by technology

[0007] The problem to be solved by the present invention is to provide a special gamma-ray detection tool for small-diameter pipe butt joints, which can better and effectively solve the problem of focal length selection encountered when gamma-rays are used to detect small-diameter welds. Difficult; too low sensitivity; inaccurate defect positioning; control of the length of a weld seam transillumination and avoiding missed inspections, etc.

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