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Transformation method for TVS-2M fuel rod film-coating equipment

A TVS-2M, rod coating technology, applied in the direction of manufacturing reactors, reactors, reducing greenhouse gases, etc., can solve the problems of unsuitable production equipment, reduce the risk of equipment use, ensure safety, and ensure the effect of normal production work

Inactive Publication Date: 2016-07-20
CNNC JIANZHONG NUCLEAR FUEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a transformation method of TVS-2M fuel rod coating equipment to solve the problem that the VVER-1000 component production equipment is not suitable for TVS-2M

Method used

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  • Transformation method for TVS-2M fuel rod film-coating equipment
  • Transformation method for TVS-2M fuel rod film-coating equipment

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Embodiment Construction

[0022] The technical solution of the present invention will be clearly and completely described below in combination with specific embodiments and accompanying drawings.

[0023] Such as figure 1 , 2 As shown, a transformation method of TVS-2M fuel rod coating equipment is applied to VVER-1000 production equipment to be suitable for the production of TVS-2M fuel rods, including the transformation of the coating material box and the guide tube Cleaning box modification:

[0024] (1) Transformation of coating material box

[0025] (1.1) Saw off the 5 pull columns at the distance of 100mm from the hanging plate of the original coating material box, and remove the part with the hanging plate;

[0026] (1.2) Use 5 stainless seamless steel tubes with a diameter of 22mm to weld the plugs at both ends of the nozzle, and weld them at the sawing position of the original coating material box; straighten and weld the coating material box after welding Seam surface polishing;

[0027]...

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Abstract

The invention belongs to the technical field of nuclear fuel element production and processing and particularly relates to a transformation method for TVS-2M fuel rod film-coating equipment.Production equipment applied to VVER-1000 is transformed to be suitable for production of TVS-2M fuel rods.The method comprises the first step of transformation of a film-coating gland box and the second step of transformation of a guide pipe cleaning gland box.In the first step, firstly, five pull pillars of the original film-coating gland box are sawn off, and the parts with hanging discs are removed; secondly, end caps are welded to the positions, where the original film-coating gland box is sawn off, of the two ends of pipe orifices of five rust-free seamless steel pipes; thirdly, a partition plate is additionally arranged based on eight partition plates of the original film-coating gland box.In the second step, firstly, four pull pillars of the original guide pipe cleaning gland box are sawn off; secondly, end caps are welded to the positions, where the original guide pipe cleaning gland box is sawn off, of the two ends of pipe orifices of four rust-free seamless steel pipes; thirdly, a partition plate is additionally arranged based on eight partition plates of the original guide pipe cleaning gland box.

Description

technical field [0001] The invention belongs to the technical field of production and processing of nuclear fuel elements, and in particular relates to a method for transforming TVS-2M fuel rod coating equipment. Background technique [0002] In the process of nuclear power generation, the length of fuel assembly refueling cycle directly affects the power generation efficiency and operating cost of nuclear power plants. In nuclear power plants, the VVER-1000 fuel assembly refueling cycle is only one year, compared with foreign countries' 2-3 year refueling cycle Compared with the advanced production technology level is not high. [0003] The upgraded TVS-2M fuel assembly of the VVER-1000 fuel assembly has a refueling cycle of 18 months. Compared with the traditional VVER-1000, it greatly reduces the refueling time and improves the power generation efficiency. As a new type of high fuel consumption product, the production of TVS-2M fuel assemblies is a major trend in future ...

Claims

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Application Information

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IPC IPC(8): G21C21/02
CPCY02E30/30
Inventor 郭翔
Owner CNNC JIANZHONG NUCLEAR FUEL
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