A semi-submersible lifting and dismantling platform crane installation method

An installation method and semi-submersible technology, applied in the field of ships, can solve the problems of semi-submersible platform structure and system complexity, inconvenient installation and disassembly, and long design cycle, so as to avoid high-altitude welding operations, reduce the overall construction period, and improve installation quality effect

Active Publication Date: 2021-07-30
CHINA MERCHANTS HEAVY IND JIANGSU +3
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The multi-functionality of the semi-submersible platform leads to the complexity of its structure and system, resulting in its long design cycle and high degree of difficulty
Especially the crane on the platform has a large tonnage and is inconvenient to install and disassemble

Method used

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  • A semi-submersible lifting and dismantling platform crane installation method
  • A semi-submersible lifting and dismantling platform crane installation method
  • A semi-submersible lifting and dismantling platform crane installation method

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Embodiment Construction

[0022] The technical solutions of the present invention will be described in detail below, but the protection scope of the present invention is not limited to the embodiments.

[0023] A semi-submersible lifting and dismantling platform crane installation method, the lifting steps of the crane 4 are as follows: install the general column 1 and the boom 2 through bearings on the wharf to form a complete crane 4, and then install the crane 4 Transport to the mooring position of the floating crane, first remove the fixing of the crane 4 and the transport ship, and prepare and connect the rigging as required. Connect the rigging to the lifting point of the crane according to the position of the rigging arrangement, and tighten it naturally. Hoist evenly until the crane is 0.05 meters away from the base. Then stop for 5 minutes and continue to lift after observing that there is no abnormality. The resultant force of the lifting hook force should be directly above the center of gra...

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PUM

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Abstract

A semi-submersible lifting and dismantling platform crane installation method, comprising the following steps: 1: Install the boom (2) in the crane (4) on the general column (1) at the dock, and the boom (2) Install it on the general column (1) through the bearing; two: transport the crane (4) to the mooring position of the floating crane, and remove the fixing of the crane (4) and the transport ship; three: the general column (1) of the crane (4) ) at the bottom to set A and C lifting points, and set strain gauge force sensors at A and C lifting points; set B and D lifting points in the middle of the boom (2); According to the position of the rigging arrangement, connect the rigging to the lifting point of the crane and tighten it naturally; 5: Hoist at a uniform speed until the crane is detached from the base; the resultant force of the lifting hook force is directly above the center of gravity of the crane (4) ; 6: Adjust the sling of the floating crane, stand the crane at attention to the installation state, move to the installation position, and then lower the crane to the base (3). The invention reduces a large amount of on-site construction and correction workload and improves product quality.

Description

technical field [0001] The invention belongs to the field of ships, and in particular relates to a method for installing a crane for a semi-submersible lifting and dismantling platform. Background technique [0002] As an important part of the high-end manufacturing industry of marine engineering equipment, the deep-sea semi-submersible lifting platform integrates a variety of high-tech, and provides the necessary drilling material transportation, living material storage, offshore installation, staff living, medical treatment for drilling and production platforms. , entertainment and other facilities. The multi-functionality of the semi-submersible platform leads to the complexity of its structure and system, resulting in its long design cycle and high degree of difficulty. Especially the crane on the platform has a large tonnage and is inconvenient to install and disassemble. Contents of the invention [0003] In order to solve the above technical problems, the present ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/52B66C1/12B66C13/08B66C13/16B66C13/48B66C23/60
CPCB66C1/12B66C13/08B66C13/16B66C13/48B66C23/52B66C23/60B66C2700/03
Inventor 何力陈伶翔莫刚刘建成吴海建朱永梅唐文献王兴龙其他发明人请求不公开姓名
Owner CHINA MERCHANTS HEAVY IND JIANGSU
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