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Detachment method of offshore platform propeller

An offshore platform and propeller technology, which is applied to ship parts, ships, transportation and packaging, etc., can solve the problems of high cost, long operation time, and large impact of propellers, and achieves simple operation, short time, and low sea condition requirements. Effect

Active Publication Date: 2015-07-29
YANTAI RAFFLES SHIPYARD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a disassembly method of an offshore platform propeller, which solves the problems in the prior art that the disassembly of the propeller in the open sea is greatly affected by the sea conditions, the operation time is long, and the cost is high

Method used

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  • Detachment method of offshore platform propeller
  • Detachment method of offshore platform propeller
  • Detachment method of offshore platform propeller

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Embodiment Construction

[0043] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention is capable of various changes in different embodiments without departing from the scope of the present invention, and that the description and illustrations therein are illustrative in nature and not limiting. this invention.

[0044] The invention provides a method for disassembling a thruster of an ocean platform. see first figure 2 , the top of the propeller 2 is provided with a mount 21 for connecting with the offshore platform 1, and the lower part of the propeller 2 is provided with a substantially cylindrical shroud 22, and the open end 221 of the shroud 22 is located on the propeller 2. Side: when the propeller 2 is installed on the ocean platform 1, the propeller 2 is in a vertical state, and the axis L of the fairing 22 is parallel to the horizontal plane or at a sma...

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Abstract

The invention provides a detachment method of an offshore platform propeller. The detachment method comprises the steps of providing a dock basin; lowering a tray into a designated area located at the bottom of the dock basin; enabling an offshore platform to float in the dock basin and moving the offshore platform to enable the propeller to be detached to be located above the tray, wherein the propeller is vertically connected onto the offshore platform; removing the connection between the offshore platform and the propeller and lowering and rotating the propeller to enable the propeller to be horizontally placed on the tray; lifting the propeller to enable the propeller to rise from the water surface. According to the detachment method of the offshore platform propeller, the security controllability is high, the requirements for sea conditions are low, the construction period is short, the cost is low, the damage to the propeller can be avoided, and the requirements for a tooling are low.

Description

technical field [0001] The invention relates to the field of ocean engineering equipment construction, in particular to a method for disassembling an ocean platform propeller. Background technique [0002] A semi-submersible drilling platform with an operating water depth of more than 300 meters requires the use of high-horsepower thrusters and dynamic positioning systems. The thruster is a large-sized and heavy-weight power component, which requires high installation accuracy and a good seal with the platform bulkhead. If the platform detects faults such as damage to the oil seal of the propeller and water seepage during the port inspection, it is necessary to dismantle the propeller underwater, replace the oil seal, and then reinstall it. [0003] The world's large oil fields are mainly concentrated in North America, Europe, the Pacific Ocean, the Middle East, and Africa. If the platform is built in China, the voyage from the construction site to the sea area where it is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B9/00
Inventor 张永亮未俊丰隋永峰韩鑫畴李天侠万文建蒋永苹方世松
Owner YANTAI RAFFLES SHIPYARD
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