EP2962975B1 - Appareil d'installation - Google Patents

Appareil d'installation Download PDF

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Publication number
EP2962975B1
EP2962975B1 EP15173178.3A EP15173178A EP2962975B1 EP 2962975 B1 EP2962975 B1 EP 2962975B1 EP 15173178 A EP15173178 A EP 15173178A EP 2962975 B1 EP2962975 B1 EP 2962975B1
Authority
EP
European Patent Office
Prior art keywords
frame
frame according
release
mattress
thrusters
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP15173178.3A
Other languages
German (de)
English (en)
Other versions
EP2962975A1 (fr
Inventor
John WANKOWSKI
Peter KEEL
Steve HOWLETT
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pipeshield Int Ltd
Pipeshield International Ltd
Original Assignee
Pipeshield Int Ltd
Pipeshield International Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pipeshield Int Ltd, Pipeshield International Ltd filed Critical Pipeshield Int Ltd
Publication of EP2962975A1 publication Critical patent/EP2962975A1/fr
Application granted granted Critical
Publication of EP2962975B1 publication Critical patent/EP2962975B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
    • B66C1/16—Slings with load-engaging platforms or frameworks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/52—Tools specially adapted for working underwater, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions

Definitions

  • the invention relates to a manoeuvrable installation apparatus for use in moving loads in a sub-sea environment.
  • the apparatus is particularly suitable for handling structures such as concrete mattresses or the like. Further, the motion of the apparatus can be controlled remotely, including by an operator above the water surface.
  • Said mattresses typically comprise a plurality of concrete blocks linked to each other such that the concrete blocks can move relative to one another enabling the mattress to partially adapt to the shape which it is covering. It should be recognised however that the installation apparatus can be used with other loads.
  • frames to transport/manoeuvre mattresses are known in the sub-sea industry, they suffer from a number of disadvantages.
  • a typical scenario involves moving mattresses from a structure such as a rig or from a boat until the mattress is in position over a cable or pipeline which it is intended the mattress protect. The mattress is then released from the frame and settled over the cable or pipeline. The frame can then be used to move further mattresses.
  • the frame, along with a mattress is suspended from a crane. In this manner, relatively large distances can be covered.
  • For the final, fine movements to precisely locate and align the mattress however, divers need to be on hand to guide the mattress into position and then to release the mattress from the frame. This can be a dangerous operation as there are often strong currents pushing against the mattress which itself can weigh several tonnes.
  • WO 2011/150236 discloses a basket for use in transporting a cargo which basket is securable to a cargo deck of a ship.
  • WO 99/61307 discloses an apparatus for deploying an object or load on a seabed.
  • a frame for use in manoeuvring a load such as a concrete mattress or the like comprising;
  • the above frame allows a load to be more safely and controllably moved to and located in the required location.
  • the frame comprises a remotely operated vehicle (an ROV) module separable from a support framework, the ROV module further optionally housing the thrusters.
  • an ROV remotely operated vehicle
  • the frame has negative buoyancy enabling the depth of the frame within the water to be controlled by a crane and providing 1080° movement.
  • the frame houses at least one transponder to enable the location of the frame to be determined. Further preferably, two or more transponders are housed in a sufficiently spaced relationship to enable the orientation of the frame to be determined and especially preferably are housed on the framework.
  • the suspension means conveniently comprises a plurality of wires or strops enabling the weight of a load to be spread out. Especially conveniently, strops are utilised to reduce any damage to a load.
  • the release handle is linked to a release rod, operation of which rod simultaneously releases all of the straps or wires.
  • the release rod is linked to a plurality of release pins, each accommodating a strop.
  • the release handle is conveniently a lever and further conveniently can be moved between an open position and a closed position.
  • a locking mechanism yet further conveniently is provided to prevent accidental movement between the two positions.
  • the lever pivots between the open and the closed positions about a hinge, which hinge is moveably housed in a slot for movement along the slot, the pivoting action causing the hinge movement along the slot.
  • the thrusters are advantageously capable of directing water in opposite directions to each other to provide torque to the frame.
  • the frame as described herein enables a load to be manoeuvred more accurately and safely than a prior art frame.
  • the coupling means between the frame and the load allows a load to be more easily secured and subsequently released on site. It is envisaged that the load release in particular should require, at most, only one sub-sea operative to operate. Typically, with regard to the prior art apparatus designed to carry out this task, more than one operative is required which increases the associated costs and risks.
  • the frame or apparatus described herein in its most basic form, comprises a framework from which a mattress can be releasably suspended.
  • the frame has incorporated thrusters which allow the frame and/or mattress to be manoeuvred.
  • the thrusters can be operated remotely, with location transponders informing the controller as to the location and also, in some embodiments, the orientation of the frame.
  • the apparatus generally referenced 10, comprises a framework 11.
  • the framework 11 is rectangular having two hollow steel tubular side frame members 12 held together and strengthened by perpendicular and diagonal cross-pieces 13, 14. Extending along the longer, central axis of the framework 11 is a parallel flanged channel (PFC) 15 which houses and supports elements of the quick release mechanism.
  • PFC parallel flanged channel
  • cheek plates 16, having eyes at 17 to receive shackles 18 and wire 19 are provided.
  • Thrusters 20 are mounted to the framework 11 which thrusters 20 act in the horizontal plane and can be orientated to provide torque about the suspension axis of the framework 11 or to move the apparatus horizontally. Additionally or alternatively, thrusters 20 can also be used to enable the framework 11 to hold its position in the presence of sub-sea current.
  • transponders 21 are provided at opposite ends of the framework 11.
  • the location signals given out by the transponders 21 not only provide the position of the apparatus 10 to the user, but also the orientation within the water. With this information, corrections can more accurately be made to said orientation which bring the framework 11 and the mattress depending therefrom into the correct alignment for the mattress to be set down.
  • the apparatus is able to operate using a single transponder, although the ability to determine the orientation of the apparatus by means of the transponder information alone will not be available. Further, additional transponders, beyond the two described above can be included to give a finer determination of location and orientation and also, in the event of failure of a transponder to enable the apparatus' orientation to continue to be determined.
  • FIG. 1 Information to and controls issued by an operator are transferred by means of an umbilical 22 to a control box 22a.
  • a handle 23 to operate the release mechanism releasing the mattress from the apparatus 10 is shown.
  • a quick release mechanism is described in more detail below.
  • the framework 11 along with a mattress depending therefrom, is lowered by a crane or the like into the approximate location of a cable or pipeline to be covered by the mattress.
  • the thrusters 20 are operated to maintain the general position and also aligning more exactly the mattress. Once the mattress is in the correct position, the mattress is released from the apparatus either manually by a diver or remotely.
  • FIG 2 a second embodiment of a lifting apparatus 30 is shown in which an ROV module 31 to provide control and motive power to the apparatus 30 is shown.
  • the ROV module 31 is releasably secured to the framework 32 by means of pins 33 passing through apertures in coupling lugs 34 on the ROV module 31 and pad-eyes 35 on the framework 32. When required therefore, the ROV module 31 can be removed from the framework 32 to carry out servicing and maintenance.
  • thrusters 36 Secured to the ROV module 31 are thrusters 36, which act to control the motion of the apparatus 30.
  • a control box 37 enables a user to operate the thrusters 36 and, in an unillustrated embodiment, the mattress-release mechanism.
  • Other elements of the framework 32 are in accordance with the first embodiment figure 1 .
  • the ROV module 31 of figure 2 is shown in more detail in figure 3 .
  • the umbilical 22 can be seen which links the control box 37 to the remote operator, usually above the water surface.
  • the connection between the operator and the apparatus 30 is therefore quite robust.
  • the ROV module 31 has pad-eyes 38 at each corner to enable shackles 39 from the lifting apparatus to be secured thereto.
  • the body of the ROV module 31 is formed from steel circular hollow section tubes 12a. Overall therefore, the apparatus 10 and 30 have negative buoyancy and the depth of an apparatus is controlled by the crane. This is in contrast to prior art ROVs which are neutrally buoyant allowing full 1080° movement.
  • the thrusters 36 can be operated in a number of different ways as shown in figures 4a - 4c .
  • the thrusters are mounted at 45° to the main axis of the frame or ROV. Further, the thrusters 36 are capable of creating water flow in two directions, depending on which way the propeller 40 is allowed to turn. In figure 4a , all the thrusters 36 act to force water in the same general direction as shown by the arrows.
  • the ROV module 31 (and hence the apparatus 30) is moved in the direction indicated 'forward'.
  • a concrete mattress 50 is shown suspended from a framework 51.
  • the mattress 50 comprises a plurality of concrete blocks, flexibly linked together. Loops formed of, for example rope, cast into the outer edge of each outer block, are present to provide secure lifting points on the mattress 50.
  • the mattress 50 is therefore releasably secured to the framework 51 by means of strops 52.
  • Each strop 52 is secured at a first end to a dead-eye anchor 53 fixed to a frame member 12 (see figure 1 ).
  • Each dead-eye anchor 53 has a removable pin 54 passing there through (see figure 5c ). When necessary therefore, to replace a strop 52, the pin 54 can be removed, the strop 52 taken off and a new strop 52 placed in the anchor 53 and secured in position by the pin 54 passing through a loop in the strop 52.
  • the strop 52 passes from the anchor 53, through a loop 55 and the mattress 50 and back over the frame member 12 to be secured at a second end to the centre frame 56 by a sliding-pin release mechanism set out below in more detail.
  • the strops 52 therefore combine together to support the weight of the mattress 50.
  • the release mechanism enables all the strops 52 to be freed simultaneously allowing the mattress 50 to settle freely in position.
  • Prior art apparatus have required the manual release of multiple securing means. This is not only time consuming, often entailing several operatives working together, but can also lead to an uneven release of the mattress 50.
  • the release mechanism of the present invention can be operated by one person, either manually or remotely. This can be achieved for example by moving the release handle such as a lever 60 between a first strop-retaining position ( figure 7 ) and a second strop-releasing position ( figure 8 ).
  • the release mechanism lies above the well of the upturned- U-shaped (or parallel flange channel (PFC)) centre frame 56.
  • the release lever 60 is pivotally mounted and operatively connected to a link rod 70 by means of a hydraulic ram 71.
  • the link rod 70 is in its turn coupled to sliding release pins 72, 73 (see figures 14a and 17 a - c) about which a strop 52 is looped. Opening of the release pins 72, 73 releases one end of the strop 52 which allows the strop 52 to be pulled through the loop 55 on the mattress 50, so releasing the mattress 50 from the framework 51.
  • the link rod 70 is welded to the release pin 72, 73 by a welded bar 74.
  • Each of the pins 72, 73 is housed within guide plates 75, 76 (shown for convenience on one side only).
  • the release lever 60 When the mattress 50 is to be released therefore, the release lever 60 is moved between the closed position 60a to the open position 60b. Acting through the hydraulic ram 71, the lever 60 moves the link rod 70 in the direction indicated by the arrow A ( figures 6b , 17a ). The release pins 72, 73 are therefore moved to the strop-releasing position shown in figure 17c . The framework 51 can then be lifted clear. When another mattress 50 is to be carried by the framework 51, the strops of that mattress are simply put into position and the lever 60 moved to the closed position 60a, passing the release pins 72, 73 through the loop in the strop, thereby securing the strop 52 and the mattress 50 to the framework 51.
  • a release pin 72 is left between the guide plates 75, 76 to enable all the strops to be positioned by one person prior to the release pins 72, 73 being simultaneously closed.
  • the lever 60 can be provided with an intermediate positioning setting to enable partial retraction of the pins 72, 73.
  • a locking mechanism is provided as shown particularly in figures 16a, 16b .
  • the lever 60 is in the closed position such that the release pins 72, 73 retain the second end of the strop 52.
  • the link rod 70 is pulled by approximately 120mm in the same direction as the lever 60 movement, thus moving the release pins 72, 73 and releasing the second end of the strop 52.
  • a locking pin 77 eventually reaches the slot 78, approximately 25mm in depth.
  • the hinge 79 about which the lever 60 pivots drops under the weight of the lever 60, into a hinge slot 80.
  • the lever 60 is thus prevented from accidentally slipping to the closed position and potentially fouling the mattress-release operation.
  • the lever In order to close the release pins 72, 73 the lever is lifted out of the slot 78.
  • the mattress release mechanism can alternatively be operated from the surface using a hydraulic release kit.
  • a water fed hydraulic cylinder ram is mounted between the lever and the hydraulic cylinder bracket.
  • the cylinder ram is then connected to a hydraulic power pack remotely by a hydraulic hose.
  • the frame is then deployed subsea carrying a mattress as described above with the cylinder ram in the closed position.
  • the power pack remains on the deck of the vessel.
  • the power pack is turned on by the remote operator. This causes the cylinder ram to move to the open position forcing the quick release mechanism open and deploying the mattress.
  • the ram can be manually closed along with the quick release mechanism as previously described.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Earth Drilling (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Claims (14)

  1. Un cadre (10) destiné à être utilisé pour manoeuvrer une charge telle qu'un matelas de béton ou analogue, le cadre (10) comprenant ;
    une pluralité de propulseurs (20, 36) orientés de façon à produire une poussée dans le plan horizontal ;
    des moyens de raccordement (18, 19) permettant au cadre (10) d'être raccordé à un moyen de levage tel qu'une grue et de maintenir le cadre (10) dans une orientation horizontale pendant l'utilisation ;
    un câble de communication ou ombilical (22) raccordant le cadre (10) à un moyen de contrôle et permettant à des données et des contrôles de commande d'être envoyés entre le moyen de contrôle et le cadre ;
    des moyens de suspension pour retenir une charge de façon libérable :
    une poignée de libération (60) reliée aux moyens de suspension pour contrôler la libération d'une charge, caractérisée en ce que la poignée de libération est reliée à une tige de libération (70), le fonctionnement de cette tige (70) libérant simultanément toutes les estropes ou tous les fils.
  2. Un cadre selon la revendication 1, où le cadre comprend un module de véhicule télécommandé (ROV) (31) séparable d'une structure de support.
  3. Un cadre selon la revendication 2, où le module de véhicule télécommandé (31) héberge les propulseurs.
  4. Un cadre selon n'importe quelle revendication précédente, où le cadre a une flottabilité négative.
  5. Un cadre selon n'importe quelle revendication précédente, où le cadre héberge au moins un transpondeur (21) pour permettre de déterminer l'emplacement du cadre (10).
  6. Un cadre selon la revendication 5, où deux transpondeurs ou plus sont hébergés dans une relation suffisamment espacée pour permettre de déterminer l'orientation du cadre.
  7. Un cadre selon la revendication 5 ou la revendication 6, où le transpondeur ou chaque transpondeur est hébergé sur le cadre.
  8. Un cadre selon n'importe quelle revendication précédente, où les moyens de suspension comprennent une pluralité de fils ou d'estropes permettant d'étaler le poids d'une charge.
  9. Un cadre selon n'importe quelle revendication précédente, où la tige de libération est reliée à une pluralité de broches de libération (72, 73), accueillant chacune une estrope.
  10. Un cadre selon n'importe quelle revendication précédente, où la poignée de libération est un levier.
  11. Un cadre selon la revendication 10, où le levier peut être déplacé entre une position ouverte et une position fermée.
  12. Un cadre selon la revendication 11, où un mécanisme de verrouillage est fourni pour empêcher un déplacement accidentel entre les deux positions.
  13. Un cadre selon les revendications 10-12, où le levier pivote entre les positions ouverte et fermée sur une charnière (79), laquelle charnière (79) est hébergée de façon à pouvoir être déplacée dans une fente (80) pour un déplacement le long de la fente (80), l'action de pivotement provoquant le déplacement de la charnière (79) le long de la fente (80).
  14. Un cadre selon n'importe quelle revendication précédente, où les propulseurs sont capables de diriger de l'eau dans des directions opposées l'une par rapport à l'autre pour fournir un couple au cadre.
EP15173178.3A 2014-06-20 2015-06-22 Appareil d'installation Not-in-force EP2962975B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1410993.8A GB201410993D0 (en) 2014-06-20 2014-06-20 An installation apparatus

Publications (2)

Publication Number Publication Date
EP2962975A1 EP2962975A1 (fr) 2016-01-06
EP2962975B1 true EP2962975B1 (fr) 2017-09-13

Family

ID=51409878

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15173178.3A Not-in-force EP2962975B1 (fr) 2014-06-20 2015-06-22 Appareil d'installation

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EP (1) EP2962975B1 (fr)
GB (1) GB201410993D0 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2544513B (en) * 2015-11-19 2021-07-14 Sapphire Balconies Ltd Controller and method of controlling a load
GB2561704A (en) * 2015-12-24 2018-10-24 Pipeshield Int Ltd Storage frame and method of use thereof
DE102016107558B4 (de) * 2016-04-22 2018-05-30 GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel Stiftung öffentlichen Rechts des Landes Schleswig-Holstein Vorrichtung zur lösbaren Verbindung eines Drahtes und Verfahren zum Ausbringen des Gerätes in ein Gewässer mit der Vorrichtung
CN105947877B (zh) * 2016-06-30 2017-09-01 中交一航局第二工程有限公司 翻板式抛投吊具
CN106365036B (zh) * 2016-09-19 2017-11-21 哈尔滨工程大学 海底管道压块释放组合式吊架
CN116101492B (zh) * 2023-04-11 2023-06-30 四川腾盾科技有限公司 一种无人直升机吊挂主动增稳装置及其工作方法
CN117509399B (zh) * 2024-01-05 2024-03-19 山西建投建筑产业有限公司 一种预制独立基础的吊装装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5263796A (en) * 1991-07-10 1993-11-23 Canadian Rubber & Steel Ltd. Self-closing clamping apparatus
NL1009277C2 (nl) * 1998-05-28 1999-11-30 Francois Bernard Werkwijze en inrichting voor het nauwkeurig plaatsen van relatief zware voorwerpen op en wegnemen van zware voorwerpen van de zeebodem.
EP2196622A1 (fr) * 2008-12-12 2010-06-16 Welltec A/S Module d'intervention de puits sous-marin
WO2011150236A2 (fr) * 2010-05-26 2011-12-01 Integris Rentals, L.L.C. Nacelle de transporteur convertible

Also Published As

Publication number Publication date
EP2962975A1 (fr) 2016-01-06
GB201410993D0 (en) 2014-08-06

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