Liftable ice resisting device suitable for truss pile leg self-elevating ocean platform

A technology for offshore platforms and lifting devices, which is applied in the anti-icing field of offshore platforms, can solve the problems of anti-icing devices movement and few anti-icing devices, and achieve the effect of reducing ice load, reducing the influence of wave force, and facilitating platform mobile operations

Inactive Publication Date: 2018-08-14
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] Aiming at the problems that the anti-icing devices of self-elevating offshore platforms are seldom used and the traditional anti-icing devices cannot move with the change of sea level tide, the present invention proposes a liftable anti-icing device suitable for self-elevating offshore platforms with truss legs anti-icing device

Method used

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  • Liftable ice resisting device suitable for truss pile leg self-elevating ocean platform
  • Liftable ice resisting device suitable for truss pile leg self-elevating ocean platform
  • Liftable ice resisting device suitable for truss pile leg self-elevating ocean platform

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Embodiment Construction

[0024] The embodiments of the present invention are further described below according to the accompanying drawings. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0025] see Figure 1-Figure 4 , a liftable anti-icing device suitable for self-elevating offshore platforms with truss legs, installed between the spud can and the platform deck; including an external cone 1, a lifting device, a locking device and a lifting frame 4, its features That is: the external cone 1, the lifting device and the locking device are installed and fixed on the lifting frame 4, and the lifting frame 4 is sleeved on the pile leg; the pile leg is a triangular truss type, including the chord 3, the support rod 5 and the rack 6. The lifting device provides power for the entire anti-icing device, and controls the rising and falling of the anti-icing device; the function of the locking device is to lock the entire ...

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Abstract

The invention discloses a liftable ice resisting device suitable for a truss pile leg self-elevating ocean platform, and belongs to the technical field of ice resistance of ocean platforms. The wholedevice is mounted between a pile shoe and a platform deck, and comprises an external cone body, a lifting device, a locking device and a lifting frame; the external cone body, the lifting device and the locking device are fixedly mounted on the lifting frame; and the lifting frame sleeves pile legs. The device uses an original lifting system for lifting along the pile legs; when the platform is located in an ice period, the external cone body can be positioned near an ice surface to achieve the best ice resisting effect; when the platform is located in a non-ice period, the device can be retracted into the deck to reduce influence of wave force; and when the platform is needed to move, the device and the pile shoe are retracted into the deck.

Description

technical field [0001] The invention belongs to the technical field of anti-icing technology for offshore platforms, in particular to a liftable anti-icing device suitable for self-elevating offshore platforms with truss legs. Background technique [0002] With the development of offshore oil and gas field development projects in low-cold and high-latitude regions, the problems of ice load and ice-induced vibration on offshore platforms are becoming more and more obvious. In order to solve the threat of ice disasters in low-cold and high-latitude areas, especially in the heavy ice area of ​​Bohai Bay in my country, researchers installed anti-icing devices of forward and reverse cone combinations on the tidal range section of the jacket platform legs in this area. Effectively reduce ice load and ice-induced vibration. However, most of these anti-icing devices are fixed, and fixed anti-icing devices cannot move with changes in sea level tides, and in many cases cannot play a g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B17/00E02B17/08
CPCE02B17/00E02B17/0021E02B17/08
Inventor 吕涛孙久洋李青阳陈国明孙树峰宋玉东
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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