Large-sized thruster underwater installing process based on L type floating platform

A floating platform and installation process technology, used in transportation and packaging, ship parts, ships, etc., can solve the problems of difficult accurate positioning and safe installation of propellers, inaccurate positioning, etc., to reduce intermediate waiting and preparation time, operation technology. Simple, effective for protecting the installation site and sealing

Active Publication Date: 2009-07-08
COSCO SHIPPING SHIPYARD (NANGTONG) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the installation methods of marine engineering equipment and ship propellers reported at home and abroad are all small and medium-sized propellers, and the positioning is not accurate.
In addition, if the propeller of a large FDSO dynamic positioning system does not rely on a floating device, it is difficult to accurately locate and install the propeller underwater

Method used

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  • Large-sized thruster underwater installing process based on L type floating platform
  • Large-sized thruster underwater installing process based on L type floating platform
  • Large-sized thruster underwater installing process based on L type floating platform

Examples

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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is illustrated by the propeller installation of the SEVAN 650 cylindrical offshore drilling oil storage platform. The whole process includes the construction of the L-shaped floating platform, the removal of the cover of the propeller installation port on the bottom of the ship, the hoisting and launching of the propeller, the displacement of the propeller, Positioning and installation, the construction of the L-shaped floating platform includes the test of launching conditions, the construction of the L-shaped bracket, the connection and fixation of the propeller placement plate and the adjustment mechanism, the connection and fixation of the floating platform and the L-shaped bracket, and the propeller on the L-shaped floating platform. The placement on the deck, the process of removing the cover of the installation por...

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Abstract

The invention discloses a process for installing a large propeller underwater based on an L-shaped floating platform. The process comprises the following steps: building the L-shaped floating platform; detaching a seal cap of an installing port of the propeller on the bottom of a ship; hoisting and launching the propeller into water; and displacing, positioning and installing the propeller. The process overcomes defects and difficulties in the prior art, uses the L-shaped floating platform as a displacing, positioning and position adjusting platform for the propeller, and has strong operability and adaptability.

Description

Technical field: [0001] The invention belongs to the technical field of deep-sea engineering equipment and large-scale ship repair and construction, and relates to a thruster installation process. Background technique: [0002] With the gradual reduction of land oil and gas energy, and the continuous development of human oil and gas development in the ocean to deep waters and distant seas, it is necessary to build ultra-deep-sea drilling and oil storage platforms (FDSO) and other exploration equipment that can adapt to multiple ocean environments. In order for various activities such as gas exploitation and exploration to proceed smoothly, the requirements for positioning operations in deep sea areas must be met. The traditional multi-point mooring system can no longer meet the requirements, and the dynamic positioning system can automatically maintain the positioning of the offshore floating device without mooring, that is, keep the offshore floating device at a certain pos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B9/00
Inventor 项立新庄建军唐盛弢张永康钱保义王匀马本勤屠艳
Owner COSCO SHIPPING SHIPYARD (NANGTONG) CO LTD
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