Special gamma ray detection tool for small diameter tube butt joints

A technology of gamma ray and butt joints, which is applied in the direction of material analysis using radiation, can solve the problems of difficult selection of focal length, inaccurate positioning, and low sensitivity, and achieve the effects of improving detection efficiency, flexible tooling, and reducing radiation emphasis

Active Publication Date: 2015-09-09
中国石油天然气第一建设有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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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.

Method used

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  • Special gamma ray detection tool for small diameter tube butt joints
  • Special gamma ray detection tool for small diameter tube butt joints
  • Special gamma ray detection tool for small diameter tube butt joints

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Embodiment Construction

[0055] The present invention will be further explained below in conjunction with the accompanying drawings. But the protection scope of the present invention is not limited to specific implementation manners.

[0056] A gamma ray detection special tooling for butt joints of small-diameter pipes of the present invention includes: a gamma source fixing mechanism, an adjusting mechanism, and a fastening mechanism;

[0057] The gamma source fixing mechanism includes a fixing sleeve 1, a lead shield fixing plate 2, a source support arm 3, and fastening bolts. The fixing sleeve 1 is used to fix the gamma source, and the outer edge is provided with screw holes, and the fastening bolts are set on The screw hole is used to fix the gamma source in the fixed sleeve 1. The entrance of the gamma source of the fixed sleeve 1 is also provided with a fixing slot for the exposure head, so that the rectangular nut at the end of the source tube enters the exposure head. In the fixed card slot, ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/04
Inventor 徐承尧陈厌灾李鹏于成科杨亚星
Owner 中国石油天然气第一建设有限公司
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