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Cryogenic gimbal coupling

A coupling, low temperature technology, used in adjustable connections, pipe/pipe joints/fittings, pass-through components, etc., to solve problems such as hinges freezing together, stagnation, etc.

Inactive Publication Date: 2009-02-18
SINGLE BUOY MOORINGS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially during start-up and stop-off of cryogenic liquid delivery, temperature differences can cause relatively large localized contractions and expansions; this has the potential to prevent the universal joint from functioning properly due to misalignment of the hinge so that the universal joint can no longer wrap around the axis of the hinge turn on a pivot, thereby becoming stuck
Another detrimental effect of low temperatures on universal joints is the potential for the hinges to freeze together due to icing that occurs in wet offshore environments

Method used

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  • Cryogenic gimbal coupling
  • Cryogenic gimbal coupling
  • Cryogenic gimbal coupling

Examples

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Embodiment Construction

[0028] FIG. 1 is a structure 1 of the cryogenic coupling of the present invention, which structure includes a first pipe 2 and a second pipe 3 . The first and second conduits 2, 3 are made using a relatively rigid material such as steel, but may also be made using composite material and have a relatively high rigidity. The intermediate flexible pipe 5 interconnects the pipes 2, 3 via coupling flanges 6, 7. The pipes 2 , 3 are interconnected via a universal joint 9 , 11 having a first set of arms 11 , 13 connecting the pipe 2 with a support ring 15 . A second set of arms 16 , 18 connects the pipe 3 with the support ring 15 .

[0029] The arms 11 , 13 are connected at their base ends 20 , 22 to a connector member 23 , while the arms 16 , 18 are connected to a connector member 25 . The hinged ends 27 , 29 of the first arms 11 , 13 are attached to the support ring 15 via hinges 30 , 31 so that the arms are pivotable about an axis 30 . The end pieces 32 , 33 of the arms 16 , 18 ...

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PUM

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Abstract

Coupling structure (1) for cryogenic hydrocarbon transfer pipes, comprising: a first and a second cryogenic transfer pipe section (2, 3) and a flexible pipe section (5) interconnecting the first and second sections (2, 3); a hinging support frame (9) comprising a first set of arms (11, 13) connected with a base end (20, 22) to the first pipe section (2); a support ring (15) around the flexible pipe section (5) hingingly attached to hinge end parts (27, 29) of the first set of arms, the first set of arms (11, 13) being pivotable around a first axis (30) and a second set of arms (16, 18) connected with a base end (38, 39) to the second pipe section (3) and with a hinge end part (32, 33) hingingly attached to the support ring (15), the second set of arms (16, 18) being pivotable around a second axis (36), which is transverse to the first axis (30) , wherein the base ends (20, 22, 38, 39) of the first and second set of arms (11, 13, 16, 18) are connected to the first and second pipe sections (2, 3) via at least one connector member (23, 25) extending transversely to the respective pipe section (2, 3).

Description

technical field [0001] The invention relates to a coupling structure of a low-temperature hydrocarbon transmission pipeline, which comprises: [0002] - first and second cryogenic transfer conduits, both having metal walls and flexible tubing interconnecting the first and second conduits; [0003] - Articulating stand, consisting of: [0004] - a first set of arms, the base end of which is connected to the first conduit; [0005] - a support ring surrounding the flexible tube, the support ring being articulated to the hinged end pieces of the arms of the first set, and the arms of the first set being pivotable about a first axis; and [0006] - a second set of arms, the base end of which is connected to the second pipe, the second set of arms having hinged end pieces hinged to the support ring and pivotable about a second axis, and the second axis Extends laterally along the first axis. Background technique [0007] From US 4,097,072 it is known that flexible hoses can b...

Claims

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Application Information

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IPC IPC(8): F16L27/02
CPCF16L27/023
Inventor 简·皮埃尔·凯奥杰克·波拉克菲利普·艾伯特·克里斯蒂安·梦纳尔多
Owner SINGLE BUOY MOORINGS INC