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Nuclear reactor control rod driving mechanism seal welding all-in-one machine and operation method

A driving mechanism and nuclear reactor technology, applied in the control of nuclear reactions, reactors, nuclear engineering, etc., can solve the problems of chip pollution, large welding heat-affected zone, easy deformation, etc., and achieve stable construction quality, small welding heat-affected zone, and deformation small effect

Inactive Publication Date: 2020-04-03
SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing cutting and welding tool technology is relatively mature, but there are two separate machines for cutting and welding, which will cause chip pollution during cutting. After cutting, the welding groove needs to be trimmed. The welding heat-affected zone is large and easy to deform. It can be cut and welded repeatedly. Issues such as less number of times, the above-mentioned problems can be improved by adopting the present invention

Method used

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  • Nuclear reactor control rod driving mechanism seal welding all-in-one machine and operation method
  • Nuclear reactor control rod driving mechanism seal welding all-in-one machine and operation method
  • Nuclear reactor control rod driving mechanism seal welding all-in-one machine and operation method

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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0019] Introduce the core component of the present invention in detail below: control rod drive mechanism sealing weld seam is used for welding, cutting, maintenance all-in-one machine head structure, as figure 1 Shown:

[0020] Outer casing, the outer casing functions to accommodate and support the internal components of the machine head, the outer casing and the inner casing are connected through an axial movement drive mechanism and a rotational movement drive mechanism.

[0021] Inner sleeve shell, the outer...

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Abstract

The invention provides a nuclear reactor control rod driving mechanism seal welding all-in-one machine. The machine is characterized by comprising an outer sleeve shell 1, an inner sleeve shell 2, anaxial motion driving mechanism 3, a rotary motion driving mechanism 4, a laser machining head assembly 5, a wire feeding nozzle and inert gas nozzle 6, a camera 7, a back inert gas nozzle 8 and a dustsuction nozzle 11. The technology is applied to cutting, welding and repairing of "omega" or "CANOPY" welding seams of a nuclear reactor control rod driving mechanism, and has the advantages of beingsimple and reliable in structure, low in power consumption, capable of integrating cutting and welding, free of cuttings in the cutting process, flat in notch without the need for remachining, smallin heat affected zone in the cutting and welding process, high in automation degree, high in process stability and the like.

Description

technical field [0001] The invention belongs to the design field of nuclear power plant operation and maintenance tools, and in particular relates to a new type of tool equipment for cutting, welding and maintenance of sealing welding seams of control rod drive mechanisms. Background technique [0002] The control rod drive mechanism of nuclear reactor is an important device for power regulation and emergency shutdown of the reactor, and its sealed shell belongs to the pressure boundary of the primary circuit. According to HAF102 "Nuclear Power Plant Design Safety Regulations", the control rod drive mechanism is a nuclear safety first-class equipment. [0003] The magnetic lifting control rod drive mechanism is the most widely used control rod drive mechanism design at present, and its core functional component is the claw component sealed inside the pressure boundary of the primary circuit. To access or replace the knuckle components, the control rod drive mechanism enclos...

Claims

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Application Information

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IPC IPC(8): B23K26/00B23K26/24B23K26/38B23K26/70G21C7/14
CPCB23K26/00B23K26/24B23K26/38B23K26/70B23K26/702G21C7/14Y02E30/30
Inventor 周肖佳史骁辰姚俊俊沈洪胡孟军何志伟刘刚陈宇清毛飞郑昌隆矫明曹明
Owner SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD
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