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A system for fast reactor fuel rods filled with helium plug

A fuel rod and pressing plate technology, applied in the field of reactor engineering, can solve problems such as difficulty in guaranteeing vacuum degree, large glove box space, and affecting plugging quality, and achieve high plugging quality, high plugging efficiency, improved vacuum degree and filling Effect of Helium Efficiency

Active Publication Date: 2017-09-12
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing method of pressing the upper end plug into the cladding tube is completed in the glove box. Due to the large space of the glove box, it is difficult to guarantee the vacuum degree and the efficiency is low, which directly affects the quality of the plugging.

Method used

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  • A system for fast reactor fuel rods filled with helium plug
  • A system for fast reactor fuel rods filled with helium plug
  • A system for fast reactor fuel rods filled with helium plug

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Embodiment Construction

[0032] The present invention will be further elaborated below in combination with the accompanying drawings and specific embodiments.

[0033] A system for helium-filled plugging of fast reactor fuel rods, the system includes a frame 1 and a plugging device 2 located on one side of the frame, a sealing device 3 and a clamping device 4; the system is vertically placed in a glove box Inside, the plugging device 2 is located above the sealing device 3, and the sealing device 3 is located above the clamping device 4; the system uses a cylinder as a power source, and manually assists in filling the cladding tube with helium and plugging;

[0034] The frame 1 is made of stainless steel, and a guide shaft is installed on the frame 1, and the guide shaft is convenient for the plugging device 2 and the sealing device 3 to slide horizontally on the guide shaft. The frame 1 is equipped with a limiting device for limiting the plugging device and the sealing device.

[0035] The clamping ...

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PUM

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Abstract

The invention belongs to the technical field of reactor engineering and discloses a system for helium charging and plug pressing of fuel rods of a fast reactor. The system comprises a machine frame, a plug pressing device, a sealing device and a clamping device, wherein the plug pressing device, the sealing device and the clamping device are located at one side of the machine frame; the system is vertically placed in a glove box, the plug pressing device is located above the sealing device, and the sealing device is located above the clamping device; the system adopts an air cylinder as a power source, and the helium charging and plug pressing of clad tubes are completed in a manual assistance manner. The system has the advantages of high clad tube vacuum degree, high helium gas utilization ratio and high upper-end-plug pressed-in efficiency.

Description

technical field [0001] The invention belongs to the technical field of reactor engineering, and in particular relates to a system for fast reactor fuel rod helium filling plugging. Background technique [0002] During the production process of fast reactor fuel rods, it is necessary to put pellets into the lumen of the cladding tube and fill it with a certain pressure of helium after vacuuming. After filling the helium, it is necessary to press the upper end plug into the cladding tube cavity. Since the diameter of the cladding tube is as small as 6-7mm, it is difficult to fill helium and the coaxiality and sealing performance of the plugging are very high. In the prior art, pressing the upper end plug into the cladding tube is completed in the glove box. Due to the large space of the glove box, it is difficult to guarantee the vacuum degree and the efficiency is low, which directly affects the quality of the plugging. Therefore, there is a need for a helium-filled pluggin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21C21/02
CPCG21C21/02Y02E30/30
Inventor 于团结刘志芳杨孔雳朱清陈辉张志鹏
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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