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Nuclear power plant buried pipe detection test piece

A test piece and buried pipe technology, which is applied in the field of nuclear power plant buried pipe detection, can solve the problems of single prefabricated defects in the detection test piece and the inability to truly simulate the detection object.

Pending Publication Date: 2020-07-07
RES INST OF NUCLEAR POWER OPERATION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the inspection of buried pipes usually relies on inspection experience, and the inspection test piece is seldom used to carry out inspection tests, or the prefabricated defects of the inspection test piece are relatively simple, and the test object cannot be truly simulated.

Method used

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  • Nuclear power plant buried pipe detection test piece
  • Nuclear power plant buried pipe detection test piece
  • Nuclear power plant buried pipe detection test piece

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Such as figure 1 As shown in -4, a test piece for the detection of buried pipes in nuclear power plants is a pipe fitting with a length of 30 m and an anti-corrosion layer. The anti-corrosion layer defects and pipe body defects are prefabricated on the pipe fittings. The circle in the figure represents the defect of the anti-corrosion layer, the text in the figure describes the position and size of the defect, the trapezoid represents the defect of the pipe body, and the text in the figure describes the size of the defect. The figure is only a design schematic diagram. The actual test processing needs to make multiple similar test pieces, and the size and shape of the pipe body defects are different, which is convenient for comparative tests.

[0026] The anti-corrosion layer defects are designed four along the direction of the pipeline on the pipeline, and the size of the anti-corrosion layer defects is 6.5cm 2 、20cm 2 、50cm 2 、100cm 2 , the distance between the f...

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Abstract

The invention belongs to the technical field of nuclear power plant buried pipe detection, and particularly relates to a nuclear power plant buried pipe detection test piece; an anticorrosive coatingis prepared on the pipe fitting and comprises pipe body defects and anticorrosive coating defects; the anticorrosive coating defects comprise a plurality of parts which are arranged side by side along the pipeline direction; the pipe body defects comprise a plurality of parts which are arranged in the pipeline direction and distributed in different directions in the circumferential direction. Thetest piece is used for a detection technology test, and the buried pipe detection technology level is improved.

Description

technical field [0001] The invention belongs to the technical field of detection of buried pipes in nuclear power plants, and in particular relates to a test piece for detection of buried pipes in nuclear power plants. Background technique [0002] The buried pipes of nuclear power plants are widely distributed in the plant area, and the pipeline layout is complicated. It is a technical problem to inspect and detect the degraded defects. In order to improve the technical level of buried pipe detection, it is necessary to carry out a series of detection test research. At present, the inspection of buried pipes usually relies on inspection experience, and inspection test pieces are rarely used to carry out inspection tests, or the prefabricated defects of the inspection test pieces are relatively simple, and the detection objects cannot be truly simulated. Contents of the invention [0003] The object of the present invention is to provide a buried pipe detection test piece...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28
CPCG01N1/28
Inventor 黄红科方江魏松林章强李燚周刘朝娄骁赵传礼张锋桂春唐毅
Owner RES INST OF NUCLEAR POWER OPERATION
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