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Slim turret

A technology of towers and components, applied in the direction of buoys, anchor arrangements, ship construction, etc., capable of solving problems such as no public solution, bearing size and tolerance requirements

Active Publication Date: 2018-09-28
CEFRONT TECH AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Another disadvantage of the prior art described above is that the towers are subject to any deformation forces or external forces acting on the hull creating greater demands on bearing dimensions and tolerances
[0009] Furthermore, none of the above prior art discloses a solution in which a complete tower assembly (i.e. a tower structure including all components required to establish a satisfactory mooring of a storage or production vessel) can be installed to a vessel in a dock

Method used

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Examples

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Embodiment Construction

[0053] Various objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments together with the accompanying drawings. In the drawings, the same numerals indicate the same or similar parts.

[0054] figure 1 An embodiment of a tower 1 for mooring a production vessel to the seabed (not shown) is shown. The tower 1 comprises a geostationary unit 5 comprising a guide tube 14 extending in the direction of a central axis 15 of the unit 5 (also the central axis of the tower). A plurality of guide tubes 14 are configured to guide risers, guide wires or cables 16 through the axial length of tower 1 (see Figure 9 ). By connecting the geostationary unit 5 of the tower 1 to the vessel 100, the vessel 100 can pivot about the geostationary unit 5 in response to changes in wind, waves and currents without disturbing the riser 16 or the mooring line 8 , 11. The tower 1 of the present inve...

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Abstract

The invention concerns a turret assembly (1) for mooring a production vessel (100) to a seabed (105) and for transferring fluids from a subsea flowline to the vessel. The turret assembly comprises a geostationary inner turret unit (5) displaying at least one throughgoing channel (14) extending axially along a longitudinal axis of the inner turret unit, a turret supporting structure (6) rotationally surrounding the inner turret unit and a bearing arrangement situated between the inner turret unit and the turret supporting structure allowing the inner turret unit to rotate relative to the turretsupporting structure and to transfer forces from the inner turret unit to the turret supporting structure.

Description

technical field [0001] The invention relates to a tower assembly for mooring, storage and production ships, a ship comprising said tower and a method of installing said tower on such a ship according to the preamble of claim 1. Background technique [0002] The role of the towers is to anchor the weathervaning vessel on the seabed without creating excessive forces on the mooring line. This is achieved through the use of a rotation and support system that keeps the towers geostationary during the rotation of the vessel. Towers on storage or production vessels must also provide space for piping that runs along the axis of the tower. The swivel unit enables the transmission of fluid flow, communication signals, hydraulics and any power between the geostationary tower and the weathervaning vessel. [0003] Towers for securing sailboats to anchor have been known for decades. For example, patent publication GB1189758A discloses a conventional tower extending between the deck an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B9/06B63B21/10B63B21/50
CPCB63B21/10B63B21/507B63B2003/147B63B21/50B63B22/02B63B27/34B63B2022/028
Inventor 阿尔内·斯梅达尔科勒·赛弗森扬·维达·阿斯内斯朗纳·图内斯
Owner CEFRONT TECH AS
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