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A Simplified Simulated Fuel Assembly

A technology for simulating fuel assemblies and fuel rods, which can be used in fuel elements, greenhouse gas reduction, nuclear power generation, etc., and can solve problems such as high cost and complex processing and manufacturing.

Inactive Publication Date: 2018-02-02
SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the real fuel assembly, the cost of this simulated assembly has been reduced and the safety has been improved, but because the same or similar upper and lower nozzles, guide tubes, and grid structures are still used as the real fuel assembly, its Processing and manufacturing are still more complex and costly

Method used

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  • A Simplified Simulated Fuel Assembly
  • A Simplified Simulated Fuel Assembly
  • A Simplified Simulated Fuel Assembly

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] figure 1 It is a schematic structural diagram of a typical PWR fuel assembly, which is a real combustion assembly, including compression spring 1, upper nozzle 2, guide tube 3, fuel rod 4, grid 5, and lower nozzle 6 and other components. The upper tube base 2 and the lower tube base 6 are provided with a complex flow hole structure, and the grid frame 5 is a multi-grid structure composed of a plurality of plate-shaped strips with springs and rigid convex structures. figure 2 It is a structural schematic diagram of a grid in a typical PWR fuel assembly, which is a real grid. It can be seen that the grid is a multi-grid structure composed of a plurality of plate-shaped strips with springs and rigid convex structures.

[0024] image 3 It is a structural schematic diagram of an embodiment of the simplified simulated combustion assembly of the present invention;...

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Abstract

The invention discloses a simplified simulated fuel assembly, comprising a simplified upper tube base, a simplified supporting framework and a simplified lower tube base, wherein the simplified supporting framework is composed of an upper connection board, a lower connection board, a stand column and a counterweight block; the simplified upper tube base, the upper connection board, the stand column, the lower connection board and the simplified lower tube base are successively connected from top to bottom; and the counterweight block is connected with the stand column. The simplified simulated fuel assembly is simple in structure, convenient in manufacturing and assembling and low in cost, reserves upper and lower interfaces and can satisfy requirements for service functions matching with equipment like loading and unloading machines and long-handle tools.

Description

technical field [0001] The invention relates to a simulated fuel assembly, in particular to a simplified simulated fuel assembly. Background technique [0002] real fuel assemblies such as figure 1 As shown, it is usually composed of compression springs, upper tube bases, guide tubes, fuel rods, grids, and lower tube bases. Due to the requirements for use in the stack, the upper and lower pipe seat structures are equipped with complex flow hole structures, and the grid frame is a multi-grid structure composed of multiple plate-shaped strips with springs and rigid convex structures, so the real The structure of the fuel assembly is complex, the number of parts is large, and in order to meet the conditions of use in the reactor, the processing accuracy of each part is required to be high, so the production of real fuel assemblies is more complicated and the cost is higher. However, in some specific use occasions (such as loading and unloading operation training), the complet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21C3/06G21C3/16
CPCG21C3/06G21C3/16Y02E30/30
Inventor 党宇郑轶雄刘松周云清朱丽兵丁捷
Owner SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD