Fuel assembly zirconium box assembly platform

Abstract

The invention discloses a fuel assembly zirconium box assembly platform, which comprises a support component and a clamping component, wherein the support component is provided with a through hole formed in the vertical direction; the through hole is matched with an end part of a fuel assembly; the clamping component is connected with the support component and is used for clamping a zirconium box of the fuel assembly. The end part and the zirconium box are connected and assembled in the vertical direction by the device; through the matching of the through hole and the end part, the fuel assembly is enabled to maintain the vertical state; the fuel rod is long, so that the confirmation in the vertical state is convenient, and the perpendicularity regulation is convenient; in addition, the defects due to gravity during the assembly in the horizontal direction can be avoided; the zirconium box and the end part are positioned and matched in the connecting position; then, through the clamping component, the zirconium box maintains the vertical state; further, the coaxiality of the end part and the zirconium box is conveniently ensured; the welding is convenient; the forming quality is favorably improved; the structure of the device is simple; the processing is convenient; the cost is low; the operation process is fast and convenient; the positioning efficiency is high.

Description

technical field [0001] The invention relates to the field of fuel rod processing, in particular to a fuel assembly zirconium box assembly platform. Background technique [0002] A number of fuel rods are arranged at certain intervals in the number of 15×15 or 17×17, inserted into a skeleton composed of multi-layer positioning grids evenly distributed along the length and connected with upper and lower tube sockets to form a fuel assembly, and then zirconium needs to be sleeved on the outside Due to the long length of the fuel rod, it is inconvenient to weld the ends of the zirconium box and the fuel assembly, and the fuel assembly is prone to deflection in the axial direction in the zirconium box, which is likely to cause safety hazards during use. [0003] In the prior art, the end of the fuel assembly is easily misaligned with the external zirconium box during assembly, and it is difficult to detect and adjust after welding, resulting in poor welding quality. Due to the hi...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies such as the poor coaxiality of the existing fuel assembly when welding the zirconium box, which affects the welding quality, causes material waste, reduces production efficiency, and increases production costs, and provides a fuel assembly zirconium box assembly platform , which is beneficial to ensure the coaxiality of the zirconium cartridge and the fuel assembly, facilitates welding, and improves product reliability

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