Self-balance type hoisting tool for steel containment module of nuclear power plant

A self-balancing, containment technology, applied in the direction of load hanging components, transportation and packaging, can solve the problems of difficult to set up lifting points, occupy the lifting capacity of the crane, and the weight of the lifting beam is large, so as to reduce the time required for hoisting. , The effect of reducing the overall weight and size, and reducing the difficulty of hoisting

Active Publication Date: 2013-11-27
上海核工程研究设计院股份有限公司
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Problems solved by technology

[0005] However, the above-mentioned hanging beam spreader has the following disadvantages: (1) The large hanging beam makes it inconvenient to store and transport at the construction site of the nuclear power plant; (2) The heavy lifting beam (about 100t) occupies a considerable liftin

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  • Self-balance type hoisting tool for steel containment module of nuclear power plant
  • Self-balance type hoisting tool for steel containment module of nuclear power plant
  • Self-balance type hoisting tool for steel containment module of nuclear power plant

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Embodiment Construction

[0022] A nuclear power plant steel containment module self-balancing hanger according to the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Such as figure 2 with image 3 As shown, a nuclear power plant steel containment module self-balancing hanger according to the present invention mainly includes a distributor 1, a steel wire rope 2, a pulley lifting point 5, and a fixed lifting point 6.

[0024] There are multiple pulley suspension points 5, for example: 9 in total. There are 3 fixed hanging points 6. The pulley lifting point 5 and the fixed lifting point 6 are both arranged on the steel containment module 7 .

[0025] Such as figure 1 As shown, the steel containment module 7 can be the top head 12 , the first ring segment 13 , the second ring segment 14 , the third ring segment 15 or the bottom head 16 . Three fixed lifting points 6 are arranged on the steel containment module 7, and...

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Abstract

The invention provides a self-balance type hoisting tool for a steel containment module of a nuclear power plant. Three fixed hoisting points are arranged on the steel containment module; n pulley hoisting points are uniformly arranged on an arc line between two adjacent fixed hoisting points at intervals; a hoisting plate of a distributor is welded inside a cylinder; each of 3n+3 balance pulleys is fixed on the circumference of the cylinder through a branch beam and corresponds to one of the pulley hoisting points or one of the fixed hoisting points; a steel wire rope sequentially penetrates through the balance pulleys on the distributor, and pulleys at the pulley hoisting points corresponding to the balance pulleys or the fixed hoisting points on the steel containment module, so that the distributor is connected with the steel containment module. A hoisting beam is eliminated, so that the problems of storage, transportation and the like of the hoisting beam are solved; the dead weight of the hoisting tool is greatly reduced, and the hoisting capacity of a hoist is released; the stress balance of all hoisting points can be automatically realized, the hoisting difficulty can be greatly reduced, and the hoisting time can be greatly shortened.

Description

technical field [0001] The invention relates to hoisting and transportation technology, in particular to a self-balancing sling for nuclear power plant steel containment shell modules. Background technique [0002] Steel containment is an important structure of AP1000 nuclear power plant, with a diameter of about 40m, the total height is about 70m, and the wall thickness is about 45mm. It can be divided into modules such as bottom head, cylinder ring section, and top head. The weight of each steel containment module ranges from 600t to 800t. The steel containment module has the characteristics of large volume, heavy weight, and easy deformation. In order to realize the hoisting of such special items, it is necessary to design a special hoisting tool. [0003] The existing steel containment module spreader adopts such as figure 2 The suspension beam type structure shown is made up of distributor 1, steel wire rope 2, octagonal suspension beam 4 and adjustable pull rod 4 et...

Claims

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Application Information

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IPC IPC(8): B66C1/12
Inventor 奚梅英郑崇裕翁晨阳毛星明钱浩张可丰高雷黄然
Owner 上海核工程研究设计院股份有限公司
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