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Assembly comprising a connection piece and a flexible hose for transporting a cryogenic fluid

A technology for transporting pipelines and connectors, applied in the direction of pipes/pipe joints/fittings, hose connection devices, non-removable pipe connections, etc.

Active Publication Date: 2014-10-01
TECH FRANCE SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] However, when the flexible pipe is strongly actuated in tension and in bending in the vicinity of the joint, the welded fixation of the end of the armor may appear insufficient and the weld seam may break prematurely

Method used

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  • Assembly comprising a connection piece and a flexible hose for transporting a cryogenic fluid
  • Assembly comprising a connection piece and a flexible hose for transporting a cryogenic fluid
  • Assembly comprising a connection piece and a flexible hose for transporting a cryogenic fluid

Examples

Experimental program
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Embodiment Construction

[0038] exist figure 1 Above, a flexible pipe 1 is partially shown for transporting refrigerated fluid, such as liquefied gas, from a liquefaction unit to a transport ship or from a transport ship to a storage unit. The length of the pipe 1 is, for example, greater than 30 meters and in particular between 30 and 350 meters. The flexible duct defines a central circulation channel 2 for the cooling fluid with axis AA.

[0039] As an example, flexible piping 1 includes, from the inside out:

[0040] - The corrugated inner tube 3 made of stainless steel can ensure the tightness of the fluid and the strength of internal pressure resistance,

[0041] - at least one pair of helically wound tensile armor layers 4, in particular made of austenitic stainless steel, able to support the axial loads imposed by the pipe 1,

[0042] - a set of aerogel-based thermal insulation 6, and

[0043] - A sealed outer casing 9 consisting of two tubular polymer casings 7 and 8 pressed one on top of ...

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PUM

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Abstract

The assembly comprises a collar (20) for clamping end portions of armour (4) on a cap (12), said collar being formed by at least two 180 DEG sectors (21) comprising an internal cylindrical clamping area (23) of a width greater than or equal to 15 mm. The sectors (21) of the collar form an intermediate clearance (22) therebetween and are connected to one another by resilient clamping means (31) which can apply a clamping pressure that is greater than or equal to 75 MPa on the above-mentioned end portions of the armour (4) via the clamping area (23).

Description

technical field [0001] The present invention relates to an assembly of a coupling head and a flexible transport pipe for transporting refrigerated fluid. Background technique [0002] A refrigerated fluid from, for example, a gas liquefaction process is, for example, liquefied natural gas at a temperature of less than -160°C. [0003] The transport of such fluids, in particular from the liquefaction unit to the ship or from the ship to the storage unit, is usually carried out by means of flexible transport pipes with an internal diameter of approximately 400 mm to ensure high flow rates and Quick turnaround. [0004] Flexible pipelines that are used to perform these operations in offshore environments are most often divided into two categories, aerial flexible pipelines and floating or subsea flexible pipelines. [0005] In the case of a side-by-side type of transshipment configuration, where the vessel is guided along a quay or floating unit, the length of the overhead fl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L13/06F16L33/01
CPCF16L13/06F16L33/01
Inventor C·拉穆雷特J-M·热雷兹P·普雷沃
Owner TECH FRANCE SA