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Fuel rod positioning trolley

A technology of fuel rods and trolleys, applied in nuclear reactor monitoring, reactors, nuclear power generation, etc., can solve the problem of lack of fuel components, and achieve the effect of convenient transportation and convenient disassembly

Inactive Publication Date: 2011-06-01
SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In China, except for Qinshan Phase I, which spent a lot of foreign exchange to import a set of repair devices from Germany, Daya Bay Nuclear Power Plant, Ling Ao Nuclear Power Plant, Qinshan Phase II and Tianwan Nuclear Power Plant do not have fuel assembly repair devices

Method used

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Embodiment Construction

[0020] A fuel rod positioning trolley according to the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Such as figure 1 , figure 2 and Figure 9 Shown: a fuel rod positioning trolley, which includes a guide rail 1, a vehicle frame 2, an upper pulley 3, a lower wheel 4, a positioning plate 5, a positioning handle 6, a load frame 7, a load frame 8, a horizontal slide rail 9, a fixed Nut 10, hand wheel 13, lead screw 14, support frame 16, cylinder 17, pneumatic control cabinet 18, air pipe 19, vertical slide rail 24, cylinder platform 25, upper roller 28; grabbing machine railing is upper cross bar 21 The structure that links to each other with the lower cross bar 27 through the connecting vertical bar 33 and the base 34, the connecting guide rail 1 is covered on three faces of the upper cross bar 21, which are respectively the front, the back and the top, and the front of the lower cr...

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Abstract

The invention relates to an overhauling device dedicated for a fuel assembly, and in particular relates to a fuel rod positioning trolley. The fuel rod positioning trolley comprises a guide rail, a trolley frame, an upper pulley, a lower idler wheel, a positioning plate, a positioning handle, a loading frame, a bearing frame, a horizontal sliding rail, a fixed nut, a hand wheel, a lead screw, a support frame, a cylinder, a pneumatic control cabinet, an air tube, a vertical sliding rail, a cylinder platform and an upper idler wheel. The fuel rod positioning trolley can simultaneously realize displacement on three directions of X, Y and Z and can be positioned according to the position of the fuel rod. The fuel rod positioning trolley is characterized in that the upper pulley structure and the lower pulley structure are used for preventing the fuel rod positioning trolley from turning over, and the fuel rod positioning trolley is safe and reliable.

Description

technical field [0001] The invention relates to a special maintenance device for fuel assemblies, in particular to a fuel rod positioning trolley. Background technique [0002] With the operation of nuclear power plants, there will inevitably be a certain breakage rate of fuel assemblies. The fuel assembly damage is often wherein 1 to 2 fuel rods are damaged, if the entire fuel assembly is scrapped, the economic loss is very huge. Therefore, the design of fuel assemblies in various countries in the world adopts a detachable structure, and at the same time, a repair device has been developed to repair the damaged fuel assemblies that have not reached the rated burnup depth and continue to be used in the stack to obtain economic benefits. Daya Bay Nuclear Power Plant, Ling Ao Nuclear Power Plant, Qinshan Phase II and Tianwan Nuclear Power Plant do not have fuel assembly repair devices in China, except Qinshan Phase I, which spent a lot of foreign exchange to import a set of r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C17/00
CPCY02E30/30
Inventor 沈秋平徐道平翁志敏胡士光陈志清吴基东
Owner SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD