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A tool for auxiliary hoisting core dry protection

A core and hoisting technology, which is applied in the field of tools for auxiliary hoisting and core dry protection, and can solve problems such as low work efficiency

Active Publication Date: 2018-11-20
CHINA NUCLEAR IND 23 CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of low work efficiency of the current method for lifting dry protection of the reactor core, the present invention proposes a tool for auxiliary lifting of the dry protection of the core to improve the efficiency of the dry protection lifting operation and ensure the construction progress

Method used

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  • A tool for auxiliary hoisting core dry protection
  • A tool for auxiliary hoisting core dry protection
  • A tool for auxiliary hoisting core dry protection

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Embodiment Construction

[0020] Combine below Figure 2-Figure 6 The tool of the present invention is introduced.

[0021] Such as Figure 2-Figure 5 As shown, the tool for auxiliary hoisting of core dry protection according to the first embodiment of the present invention includes three uprights 10 and several support rods 13 , and the support rods 13 connect the three uprights 10 .

[0022] Figure 4 The upright column 10 shown in is the structure of I-beam, and the upright column 10 also can be the structure of square steel or channel steel. The upper part of the column 10 is provided with a hoisting hole 17; the upper part of the column 10 is also provided with an upper reinforcing plate 16. The position, and the round hole of the upper reinforcing plate 16 corresponds to the hoisting hole 17, so as to strengthen the stability of the hoisting hole 17 of the column 10. The bottom of the column 10 is fixed with a load-bearing plate 11 , and the load-bearing plate 11 protrudes from the side of th...

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Abstract

The invention belongs to the technical field of the installation of a nuclear power station. The invention provides a tool for assisting the hoisting of a reactor core dry protection, which is used for solving the problem that the traditional method for hoisting the reactor core dry protection is low in working efficiency. The tool comprises at least three stand columns and a plurality of supporting rods; the height of each stand column is greater than a half of the height of the dry protection, a hoist hole is formed in the upper part of each stand column, a load-bearing plate is fixed under the bottom of each stand column, and the load-bearing plate stretches out of the side surface of each stand column; each supporting rod is connected to the upper part of the corresponding stand column, so that the stand columns form a regular polygonal prism structure. By utilizing the tool, the hoisting efficiency of the dry protection can be improved.

Description

technical field [0001] The invention belongs to the technical field of nuclear power plant installation, and in particular relates to a tool for auxiliary hoisting and core dry protection. Background technique [0002] Dry protection is an important part of nuclear power reactors, figure 1 3D schematic diagram for dry protection, such as figure 1 As shown, the dry protection 15 is a thick-walled cylindrical structure, the inner and outer diameters are 5560mm and 6710mm respectively, and the height is 5295mm. It is welded by three equally divided sectors and weighs about 150 tons. During the construction of nuclear power plants, it is necessary to introduce the overall hoisting of the dry protection to the core of the nuclear island. The current method of hoisting the dry protection is to weld the spreader components on the dry protection, and use the spreader components as lifting points to complete the lifting operation of the dry protection. After the dry protection hois...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C1/16
CPCB66C1/16
Inventor 王建斌李峰魏君斌祁孔忠
Owner CHINA NUCLEAR IND 23 CONSTR