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A complete set of welding equipment for high-pressure helium filling and laser welding of nuclear fuel rod cladding

A nuclear fuel rod, laser welding technology, applied in laser welding equipment, welding equipment, metal processing equipment and other directions, can solve problems such as large consumption, and achieve the effect of small helium filling, low energy consumption, and low helium consumption

Active Publication Date: 2020-03-17
XI AN JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, as the energy source of nuclear reactors, fuel rods consume a huge amount

Method used

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  • A complete set of welding equipment for high-pressure helium filling and laser welding of nuclear fuel rod cladding
  • A complete set of welding equipment for high-pressure helium filling and laser welding of nuclear fuel rod cladding
  • A complete set of welding equipment for high-pressure helium filling and laser welding of nuclear fuel rod cladding

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Experimental program
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Effect test

Embodiment Construction

[0032] The present invention is described in further detail below in conjunction with accompanying drawing:

[0033] refer to figure 1 , figure 2 and image 3, the nuclear fuel rod cladding high-pressure helium filling and laser welding complete set of welding equipment according to the present invention includes a first welding chamber end 13, a plug valve head 19, a plug valve seat 20, a second welding chamber end 14, and a welding chamber neck 12. The first laser welding head 3, the second laser welding head 4 and the third laser welding head 5; the end surface of the end 13 of the first welding chamber is provided with an upper and lower material opening 15, and the plug valve head 19 is fixed on the At the loading and unloading port 15, the side of the first welding chamber end 13 is provided with a first laser incident window 16, a first air inlet 25 and a vacuum pump interface 26, and the first welding chamber end 13 is equipped with a transfer roller 31 and a The f...

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Abstract

The invention discloses jacket high-pressure helium charging and laser welding complete welding equipment for a nuclear fuel rod. The jacket high-pressure helium charging and laser welding complete welding equipment for the nuclear fuel rod comprises a first welding chamber end, a plug valve head, a plug valve seat, a second welding chamber end, a welding chamber neck portion, a first laser welding head, a second laser welding head and a third laser welding head. The jacket high-pressure helium charging and laser welding complete welding equipment for the nuclear fuel rod has the advantages ofbeing high in production efficiency, automatic level and integration level and low in equipment investment cost, energy consumption and helium consumption.

Description

technical field [0001] The invention belongs to the technical field of laser welding and the field of nuclear fuel assembly processing, and relates to a complete set of welding equipment for nuclear fuel rod cladding high-pressure helium filling and laser welding. Background technique [0002] Nuclear fuel rods are mainly composed of nuclear fuel cores and cladding structures. As the first safety barrier of nuclear reactors, the fuel cladding is responsible for containing the fuel core and fission products, and serves in high temperature, high pressure, corrosion and strong neutron irradiation environments Among them, it is one of the most severe components in the reactor. There are three positions where the fuel cladding needs to be welded during encapsulation, namely two girth welds between the cladding tube and the upper and lower end plugs and one sealing spot on the top of the upper end plug. Among them, in order to replace the air inside the cladding, improve heat exc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/21B23K26/70B23K26/064B23K26/03
CPCB23K26/032B23K26/064B23K26/21B23K26/702
Inventor 张林杰白清林宁杰张亮亮龙健林涛马宏波
Owner XI AN JIAOTONG UNIV
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