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Fuel storage grillwork and assembling method thereof

A technology of fuel storage and grid, which is applied in the direction of reactor fuel elements, reduction of greenhouse gases, reactors, etc., can solve the problems of uncontrollable welding deformation of coamings and columns, unpolishing of coamings, and oxidation of cladding plates, etc., so as to save The effect of time loss, avoiding direct contact with the ground, and reducing installation inconvenience

Pending Publication Date: 2022-04-12
JIANGSU GREEN WATER TREATMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the patent of the present invention is to provide a fuel storage grid and its assembly method to solve the existing problems: horizontal assembly; the welding deformation of the coaming and the column cannot be controlled, the back of the coaming cannot be polished after welding, and the packaging There is a risk of oxidation of the cladding

Method used

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  • Fuel storage grillwork and assembling method thereof
  • Fuel storage grillwork and assembling method thereof
  • Fuel storage grillwork and assembling method thereof

Examples

Experimental program
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Embodiment 1

[0031] refer to Figure 1-Figure 4 , a fuel storage grid, comprising: a column, a bottom plate, a coaming assembly and a partition assembly, the four end corners of the upper end of the bottom plate are fixed with columns, the coaming assembly is arranged on the column, the column, the bottom plate, the coaming The components form the main body of the frame, and the partition assembly is arranged inside the frame main body, and is connected to the column through the panel assembly; the vertical assembly method is adopted, and the panel and the column are all welded together first, so that the overall grid size can be controlled, and The back of the weld can be cleaned; and the overall pickling and passivation can be performed.

[0032] Specifically, the panel assembly includes panel 1, panel 2, panel 3, panel 4, both sides of the frame main body are provided with panel 1 and panel 2, both ends of panel 1 and panel 2 are Fixed with the column, the hoarding 1 is located at the ...

Embodiment 2

[0054] On the basis of above-mentioned embodiment 1, disclose its assembly method:

[0055] The first step: according to the size requirements of the grid, weld the coaming and the column, clean the weld, and passivate the whole;

[0056] Step 2: Weld and fix the bottom plate to the bottom of the column, so that the coaming, column and bottom plate form the main body of the frame;

[0057] Step 3: Finally, install partition 1 and partition 2, insert partition 1 into enclosure 1; insert partition 2 into enclosure 4, and buckle together with partition 1 to divide the interior of the frame body into multiple Storage chamber; wherein, the partition 2 can be inserted from the upper end of the enclosure 4;

[0058] Step 4: Install the storage sleeve inside the storage chamber to complete the grid assembly.

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Abstract

The invention relates to the technical field of nuclear island equipment, in particular to a fuel storage grillwork and an assembling method thereof. The fuel storage grillwork comprises stand columns, a bottom plate, a surrounding plate assembly and a partition plate assembly, the stand columns are fixed to the four end corners of the upper end of the bottom plate, the surrounding plate assembly is arranged on the stand columns, the stand columns, the bottom plate and the surrounding plate assembly form a grillwork body, the partition plate assembly is arranged in the grillwork body, and the partition plate assembly is arranged in the grillwork body. And the coaming assembly is connected with the stand column. Through the matching design of multiple structures, the grillwork is easy to produce and convenient to assemble, the grillwork is supported through the base assembly, installation inconvenience is reduced, and meanwhile the grillwork is prevented from making direct contact with the ground; a traditional horizontal assembly mode is changed into a vertical assembly mode, so that time loss caused by horizontal assembly of the frame is saved, manpower and material resources are saved, the size of the whole grillwork can be controlled, and the back surface of a welding seam is convenient to clean; and the whole pickling passivation can be realized.

Description

technical field [0001] The invention relates to the technical field of nuclear island equipment, in particular to a fuel storage grid and an assembly method thereof. Background technique [0002] The spent fuel storage grid is an important equipment of the nuclear island, and the high-density spent fuel storage grid has the most specifications among the spent fuel storage grids, and the assembly of the storage grid is difficult; [0003] Technical scheme of prior art: [0004] Horizontal assembly, firstly weld the bottom plate to the column, then weld the panel and column, then lay the frame down on the platform, make the panel upward, insert the partition into the panel and spot weld it. Then the storage chambers are hoisted into the frame successively from the positions at both ends and fixed to the bottom plate with bolts, and then assembled in the middle. Assemble layer by layer. After installing one layer, insert the partition into the enclosure from the other directi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C19/07G21C21/00
CPCY02E30/30
Inventor 刘赟周瑜邵继业胡吉祥王灿灿蔡跃顾东升
Owner JIANGSU GREEN WATER TREATMENT
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