A method for arching treatment of steel cladding panels in refueling pools of nuclear power plants

A technology for cladding panels and nuclear power plants, which is applied in the processing of building materials, construction, industrial buildings, etc., can solve problems such as inability to fill gaps, and achieve the effect of ensuring sealing and preventing deformation.

Active Publication Date: 2022-04-05
SANMEN NUCLEAR POWER CO LTD
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  • Abstract
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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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  • A method for arching treatment of steel cladding panels in refueling pools of nuclear power plants
  • A method for arching treatment of steel cladding panels in refueling pools of nuclear power plants
  • A method for arching treatment of steel cladding panels in refueling pools of nuclear power plants

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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

A method for handling arching of steel cladding panels in refueling pools of nuclear power plants, which relates to the field of nuclear power plant maintenance, and the specific method includes: step S01, grouting preparation, uniformly drilling a number of grouting holes on the steel cladding panels and corresponding grouting holes Drill fixing holes on the concrete layer, and at the same time drill out the grout holes evenly. Step S02, grouting by gravity, setting a grouting pipe on the grouting hole, pouring the prepared grouting material into the grouting pipe through the grouting funnel. Step S03, grouting and plugging, placing the anchor nails welded together with the bottom of the plugging block in the fixing hole, and the plugging block is fixed at the grouting hole and the grouting hole by spot welding. Step S04, the grouting is finished, and after the grouting material is solidified, the plugging block is welded to the steel cladding, and the devices except the refueling pool are removed. The invention evenly fills the gap between the steel cladding panel and the lower concrete layer due to arching, so as to ensure that the steel cladding panel is not deformed and has good 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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Patent Type & Authority Patents(China)
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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