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marine tensioner

A tensioner, marine technology, applied in thin material handling, pipeline laying and maintenance, transportation of filamentous materials, etc., can solve problems such as increasing the size of the tensioner

Active Publication Date: 2016-01-20
ITREC BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] When operating larger pipes, and / or pipes with larger fittings, the size of prior art tensioners increases accordingly

Method used

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Examples

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Embodiment Construction

[0062] exist Figure 1a to Figure 1c , a marine tensioner 1 is schematically shown. The tensioner 1 is adapted to operate an elongated article (not shown) from an offshore vessel, such as laying a pipeline from marine pipeline equipment on board, or for operating an umbilical for subsea installations from an umbilical handling device on board, The tensioner is adapted to absorb loads exerted on the tensioner by the elongated article.

[0063] The tensioner 1 comprises a tensioner frame 11, for example adapted to be supported in pipe laying equipment, which is Figure 1b China is in Figure 1a It is more clearly visible in the cutaway view in . The tensioner frame 11 includes an annular structure 10 that absorbs loads applied by an elongated article (not shown). In general, the annular structure 10 may comprise one or more moving parts which, in the open position, allow the lateral introduction of items into the tensioner frame 11 and close the annular structure 10 in a load...

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Abstract

The invention is directed to a marine tensioner (1) for handling elongated objects from a marine vessel. The tensioner comprises a tensioner frame (11), a plurality of track units (20), wherein each track unit comprises an elongated base frame (30) and an annular track supported by the base frame, wherein each A connecting structure (40, 140) is provided between the chassis of the track unit and the tensioner frame, the connecting structure allowing at least lateral movement of the track unit relative to the channel axis (26) to accommodate the The location of the track unit. For each track unit, a set of hydraulic squeeze cylinders (50a, 50b, 50c) is provided between the tensioner frame and the chassis of the track unit. Said tensioner further comprises a tilt mechanism (60) for said squeeze cylinder bank of each track unit, said tilt mechanism being adapted to align said hydraulic squeeze cylinders of a track unit in an operative position with an oversized item Tilting through between positions in which the squeeze cylinder is operated to apply a squeeze force for manipulating an elongated article in use of the tensioner.

Description

technical field [0001] The present invention relates to a marine tensioner for operating elongated items originating from offshore vessels, such as laying pipelines from marine pipeline equipment on board, where pipelines for transporting hydrocarbons (oil, gas, etc.) are laid on the seabed. The tensioner may also be specifically described and / or used to operate other elongated items such as hydrocarbon risers (hydrocarbon risers), and umbilicals such as those derived from shipboard umbilical handling devices (e.g., for marine equipment, ROV, earth exploration tools, etc.), the tensioner is adapted to absorb the load exerted on the tensioner by the elongated article. Background technique [0002] Tensioners are well known in the field of marine pipeline laying and often have the task of supporting the weight of the launched pipeline. Tensioners are used in many pipe laying techniques such as S-lay (S-Lay), reel-lay (Reel-Lay), J-lay (J-Lay), but also for laying cables , f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L1/23
CPCB65H51/105F16L1/23B63B35/03F16L1/235
Inventor J·卢登伯格R·L·W·诺文斯
Owner ITREC BV
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