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Method for arching treatment of steel clad panel of refueling pool of nuclear power plant

A technology for cladding panels and nuclear power plants, applied in the processing of building materials, industrial buildings, buildings, etc., can solve problems such as inability to fill gaps, and achieve the effects of preventing deformation, precise drilling, and high reliability

Active Publication Date: 2021-01-08
SANMEN NUCLEAR POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this grouting method is not suitable for pouring gaps, and the gaps cannot be filled evenly.

Method used

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  • Method for arching treatment of steel clad panel of refueling pool of nuclear power plant
  • Method for arching treatment of steel clad panel of refueling pool of nuclear power plant
  • Method for arching treatment of steel clad panel of refueling pool of nuclear power plant

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Embodiment Construction

[0043] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0044] Such as Figure 1-7 As shown, a method for arching treatment of steel cladding panels in refueling pools of nuclear power plants, the method includes:

[0045] Step S01, preparation for grouting, under the steel cladding panel 1 is the concrete layer 2 and one end of the neutron shielding box 3 arranged horizontally with the concrete layer 2, and the neutron shielding box 3 is provided on the other end away from the concrete layer 2 Small neutron shielding box 4. After sealing the gap between the steel cladding panel 1 and the neutron shielding box 3, and the gap between the small neutron shielding box 4, drill a number of grouting holes 11 evenly on the steel cladding panel 1 and make corresponding grouting holes ...

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Abstract

The invention provides a method for arching treatment of a steel clad panel of a refueling pool of a nuclear power plant, and relates to the field of nuclear power plant maintenance. The method specifically comprises the steps that S01, grouting preparation is carried out, specifically, a plurality of grouting holes are uniformly drilled in the steel clad panel and fixing holes are drilled in a concrete layer corresponding to the grouting holes, and slurry holes are uniformly drilled at the same time; S02, gravity grouting is carried out, specifically, grouting pipes are arranged on the grouting holes, and mixed grouting materials are poured into the grouting pipes through grouting funnels; S03, grouting plugging is carried out, specifically, anchoring nails welded to the bottoms of plugging blocks are placed in the fixing holes, and the plugging blocks are fixed to the grouting holes and grout outlet holes through spot welding; and S04, grouting is finished, after the grouting materials are solidified, the plugging blocks and the steel covering surface are welded, and devices except the refueling pool are disassembled. The gap between the steel clad panel and the concrete layer below the steel clad panel due to arching is evenly filled, and it is ensured that the steel clad panel does not deform and is good in sealing performance.

Description

technical field [0001] The invention relates to the field of maintenance of nuclear power plants, in particular to a method for arching treatment of steel cladding panels in refueling pools of nuclear power plants. Background technique [0002] The steel cladding panel and the lower concrete of the refueling pool of the nuclear island reactor building may be arched and separated during the construction process. To deal with this problem, the gap caused by the arching needs to be grouted. Conventional methods to deal with steel cladding problems are generally to directly grind and repair welding or cut off damaged steel cladding panels and then add backing plates for repair welding, but these are repair measures for local outer surfaces. There is no more thorough solution to superficial problems. [0003] For example, the invention patent application publication number CN109404015A, the publication date is March 1, 2019, and the name of the invention is a construction proce...

Claims

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Application Information

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IPC IPC(8): E04G21/00E04G21/02E04H5/02
CPCE04G21/00E04G21/02E04H5/02
Inventor 蔡龙霆夏利明唐钢李拓陈军张培来施奇平汪方文王鹏程张一帆
Owner SANMEN NUCLEAR POWER CO LTD
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