EP2085308B1 - Appareil avec conteneur flottant pour un câble - Google Patents

Appareil avec conteneur flottant pour un câble Download PDF

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Publication number
EP2085308B1
EP2085308B1 EP20090150849 EP09150849A EP2085308B1 EP 2085308 B1 EP2085308 B1 EP 2085308B1 EP 20090150849 EP20090150849 EP 20090150849 EP 09150849 A EP09150849 A EP 09150849A EP 2085308 B1 EP2085308 B1 EP 2085308B1
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EP
European Patent Office
Prior art keywords
tank
inner tank
outer tank
fluid
cable
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.)
Active
Application number
EP20090150849
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German (de)
English (en)
Other versions
EP2085308A2 (fr
EP2085308A3 (fr
Inventor
Gunnar M. Jacobsen
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.)
Ingeniorfirmaet G M Jacobsen As
Original Assignee
Ingeniorfirmaet G M Jacobsen As
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 Ingeniorfirmaet G M Jacobsen As filed Critical Ingeniorfirmaet G M Jacobsen As
Publication of EP2085308A2 publication Critical patent/EP2085308A2/fr
Publication of EP2085308A3 publication Critical patent/EP2085308A3/fr
Application granted granted Critical
Publication of EP2085308B1 publication Critical patent/EP2085308B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/04—Cable-laying vessels

Definitions

  • the present invention concerns an apparatus for loading and unloading cables.
  • the apparatus is primarily intended used for coiling cables onboard a floating vessel. However, the apparatus can also be utilised by manufacturers and developers offshore for oil and gas fields and in coastal areas for coiling power and signal cables and other applications for coiling.
  • the apparatus is primarily intended placed on a barge for the use of coiling multifunctional cables or umbilicals.
  • the cable will then be paid out from a turntable onshore and stored onboard the barge until the vessel used for installing the cable takes it onboard.
  • the place for such storage may be close to the manufacturer or close to the field of installation.
  • the installation vessel may have a shorter work period.
  • the apparatus involves primarily a cylindrical tank with a vertical centre axis and a floor or base that withstands the load from the water and the cable loaded.
  • the tank with the cable rotates inside another tank that is slightly larger, and so that the rotating motion is permitted without contact between the two tanks.
  • the outer tank may be part of the vessels hull structure or may be placed on the floor without causing significant reinforcements of the hull. The last is relevant when utilising ordinary barges.
  • the rotating tank may have a flat floor.
  • the upper part of this tank may be a strong ring construction.
  • This ring may take loads that are in addition to buoyancy and that takes up loads giving stability to keep the tank in position and a force may be applied to the ring for rotating the tank. These loads may be transferred with wheels mounted on the outside tank.
  • All bearings and drive units may be arranged so that they can be replaced during operation.
  • the number of units for stabilisation and rotation may be with a redundancy that allows the removal of a unit during operation for maintenance.
  • the fluid between the tanks may be tap water with additives acting to prevent corrosion and marine growth.
  • the tank with the cable may be dimensioned for lifting with full load of cable and may for example be placed onshore or on another vessel if this is suitable for the purpose.
  • the apparatus according to the invention may be significantly smaller.
  • the load capacity for one single unit may for example be 1500 tonnes.
  • Outer diameter for a small tank with the cable may then be 18 meter and the diameter inside the cable bundle 9 meter, and respectively 25 meter and 15 meter for a larger one.
  • the present invention concerns an apparatus with a floating tank for take-up of cable.
  • the tank is designed as a floating body with floor and sides. This tank is placed inside another tank so that there is a room between these for filling of fluid.
  • At least one support unit supports the floating tank, and is adapted to allow the rotation of the inner tank relative to the outer one.
  • a drive unit is provided for rotating the floating tank.
  • the inner tank and the outer one may be cylindrical or multi-edged.
  • the inner tank with an outside diameter and the outer tank with an inside diameter will make an interstice sufficiently large so that the tanks do not contact when the interstice is fluid filled, and also small so that the construction is compact and does not need large amounts of fluid.
  • Typical difference in diameters may be 0,05 to 0,5 meter.
  • the difference in diameter is large enough to avoid large shear forces in the fluid during rotation, and large enough to use normal tolerances in the construction.
  • the interstice shall be dimensioned to avoid seizing of the tanks during installation and removal. It will also be an advantage to have a small volume of fluid in respect to weight and pump capacity when controlling the buoyancy during loading and unloading. During sailing the fluid is drained or pumped to a storage tank in a sealed off system, and the inner tank will then rest against elements that secure the inner tank.
  • the at least one such support unit may be a rotating bearing in the centre for pivotal attachment of the floating tank in the outer tank.
  • the at least one such support unit may comprise roller units along the tank rim. These rollers may be suspended in the outer tank and act onto a rim on the inner tank facing the load caused by the buoyancy. These rollers may have a flange and the rim may be a rail such that the guidance can be compared with a wheel on a railway.
  • the drive unit may include a minimum of one motor unit for rotation of the rollers for the inner tank.
  • the drive unit may include a motor unit with pinion in contact with a toothed ring along the rim of the inner tank.
  • the drive unit may include a motor unit mechanically connected to the centre of the inner tank.
  • the inner and the outer tanks may include an enlargement in the upper part mainly horizontally in extent.
  • the roller units may act upon the horizontal surface on the inner tank.
  • the apparatus may further include fastening elements for fastening the inner tank relative to the outer tank as seafastening.
  • the apparatus may further include a pump and a control system for regulating the fluid level in the interstice between the tanks.
  • the at least one support unit may be placed in the upper part of the outer tank and may include rollers for supporting of the inner tank in rotation. After completed filling or unloading cable from the inner tank, this will be lowered and at the same time engage against supports in the floor.
  • An inside limitation for the support of the cable may be placed in the floor centre area of the inner tank.
  • This limitation may be suitable poles, a curved body or otherwise and may have the form of a drum, hub or reel for coiling of cable.
  • the inside limitation may be replaceable in order to be adapted to the cable weight and minimum bend radius.
  • the total weight of the cable must not exceed the maximum weight the device allows. Maximum weight depends on the buoyancy of the tank, and in some cases permitted bearing loads or roller loads.
  • the apparatus can be used for loading and unloading of a cable as described above, to a vessel for transport of cable.
  • FIG. 1 it appears a top view of a barge 18 with an apparatus according to the invention.
  • a cable is coiled around an inside limitation in a circular tank 2.
  • the inner, circular tank 2 is positioned in an outer tank 4.
  • the outer tank 4 is prepared for filling of fluid so that the inner tank 2 is given a buoyancy.
  • Eight rollers, barrels or wheels 9 are shown suspended in respect to the outer tank 4.
  • a stiffened upper rim 22 on the inner tank 2 rests against the rollers 9 and is guided by a flange on the rollers 9.
  • One or several of the rollers 9 may be powered by a suitable motor for the rotation of the inner tank 2 in respect to the outer tank 4.
  • the cable 1 is shown running through a feeder and guidance arrangement for the positioning of the cable correctly inside the inner tank 2.
  • FIG 3 it appears a cross section of another design of the device according to the invention, in greater detail, where the inner tank 2 upper rim 22 is designed so the rim 22 is pressed downwards against the rollers 9 as opposed to the inner tank 2 being pressed upwards against the rollers.
  • the circular tank 2 with a stiffened upper rim 22 an inner limiter 3 and a floor 5 in greater detail.
  • the cable 1 is shown coiled around the inner limiter 3.
  • the circular tank 2 upper stiffened rim 22 comprises a mainly horizontal area 13.
  • the rollers 9 with a flange are placed along the horizontal area 13 to support the inner tank 2 and in order to keep this in correct position.
  • rollers 9 may also be connected to a suitable drive unit, for example an hydraulic motor, for rotating the circular tank 2 around an axis of rotation O.
  • a suitable drive unit for example an hydraulic motor, for rotating the circular tank 2 around an axis of rotation O.
  • Horizontal webs 7 are placed inside the outer tank 4 for directing the fluid between the circular tank 2 and the outer tank 4, particularly to restrict fluid from flowing upwards between the walls in the tanks when the inner tank 2 turns around its axis O.
  • the fluid between the inner tank 2 and the outer tank 4 may as typical be water with different additives to restrict growth of marine organisms, freezing, corrosion etc.
  • FIGS 4, 5 and 6 show the apparatus in greater detail.
  • Figure 4 shows the circular tank 2 placed inside the outer tank 4.
  • An inner limiter 3 is made with poles with braces 27 in between the poles, placed on a reinforced floor or deck 5.
  • the poles function as an inner limit for a cargo hold room where the cable shall be placed.
  • a bearing 28 for maintaining the inner tank 2 position inside the outer tank 4.
  • the upper rim of the inner tank is stiffened with a ring 22.
  • the ring 22 is in contact against rollers 9, supported from the outer tank 4.
  • Piping 26 for supply or drainage of fluid to the outer tank 4 is shown in the side of the tank.
  • One of the pipes may be positioned near the floor of the outer tank 4 for drainage, and the other pipe may be placed in the upper part of the outer tank in order to avoid overfilling.
  • Braces 27 are shown on the inner tank 2 floor 5 for stiffening. These may also contribute to keep of the inner tank 2 in steady position when the device shall be transported, and the fluid is drained out.
  • the pipes 26 may be a part of a closed circuit with storage tank and a pump for the fluid used.
  • the level of filling fluid may be regulated using suitable valves and pumps controlled by units made for the purpose. Parameters for regulating the valves and the pump are for example the position of the inner tank 2, the level of fluid in the interstice between the inner tank 2 and outer tank 4, mass of cable 1 in the inner tank 2.
  • a bearing 28 may be placed in the centre of the floor 5 for guidance of the inner tank 2 relative to the outer tank 4.
  • the bearing 28 may be a substitute or - or a supplement to the rollers 9.
  • Figure 5 shows the inner tank 2 with the upper rim 22 for stiffening and the inner limiter 3.
  • Figure 6 shows the outer tank 4 for accommodating the inner tank 2 and fluid.
  • the outer tank 4 has an upper part 29 that is widened to make room for the stiffened rim 22 on the inner tank 2.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Level Indicators Using A Float (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Claims (13)

  1. Appareil ayant un réservoir interne flottant (2) pour la réception d'un câble (1) et un système d'entraînement (6), dans lequel :
    - le réservoir interne (2) est fait sous la forme d'un corps flottant, avec un plancher (5) et des côtés, et par mise en place du réservoir interne (2) dans un réservoir externe (4), de telle sorte qu'un espace interstitiel est formé entre le réservoir interne (2) et le réservoir externe (4) pour l'introduction de fluide dans l'espace interstitiel ;
    - au moins une unité de support est disposée pour le support du réservoir interne (2) à l'intérieur du réservoir externe (4), permettant une rotation du réservoir interne (2) par rapport au réservoir externe (4) ; et
    - un système d'entraînement (6) est conçu pour faire tourner le réservoir interne (2) par rapport au réservoir externe (4).
  2. Appareil selon la revendication 1, dans lequel le réservoir interne (2) et le réservoir externe (4) sont cylindriques ou avec de multiples bords.
  3. Appareil selon la revendication 1, dans lequel le réservoir interne (2) a un premier diamètre externe et le réservoir externe (4) a un second diamètre interne de telle sorte que l'espace interstitiel entre le réservoir interne (2) et le réservoir externe (4) est suffisamment grand pour éviter un contact lorsque l'espace interstitiel est rempli de fluide, et suffisamment petit de telle sorte que la structure est compacte et n'a pas besoin de grands volumes de fluide.
  4. Appareil selon la revendication 1, dans lequel l'unité de support comprend un palier (8) situé au centre dans le réservoir interne (2) et le réservoir externe (4), pour une fixation pivotante du réservoir interne (2) à l'intérieur du réservoir externe (4).
  5. Appareil selon la revendication 1, dans lequel l'unité de support comprend des unités roulantes (9) le long de la circonférence du réservoir interne (2).
  6. Appareil selon la revendication 5, dans lequel l'unité d'entraînement (6) comprend au moins un moteur (10) pour alimenter en énergie les unités roulantes (9) et pour la rotation du réservoir interne (2) par rapport au réservoir externe (4).
  7. Appareil selon la revendication 1, dans lequel le système d'entraînement comprend une unité moteur (6) ayant un engrenage à pignon et crémaillère le long de la circonférence du réservoir interne (2).
  8. Appareil selon la revendication 1, dans lequel l'unité d'entraînement (6) comprend une unité moteur ayant une transmission mécanique reliée au centre du réservoir interne (2).
  9. Appareil selon la revendication 5, dans lequel le réservoir externe (4) et le réservoir interne (2) comprennent un élargissement supérieur avec une partie principalement horizontale (21) sur le réservoir externe (4) et une partie horizontale sur le réservoir interne (2).
  10. Appareil selon la revendication 9, dans lequel les unités roulantes (9) roulent sur les parties principalement horizontales (13, 21) entre le réservoir externe (4) et le réservoir interne (2).
  11. Appareil selon la revendication 1, comprenant en outre des éléments de fixation pour la fixation d'une charge dans le réservoir interne (2) par rapport au réservoir externe (4).
  12. Appareil selon la revendication 1, comprenant en outre une pompe et un système pour la régulation du niveau de fluide dans l'espace interstitiel entre le réservoir externe (4) et le réservoir interne (2).
  13. Appareil selon la revendication 1, comprenant en outre un intérieur limité (3) destiné à supporter le câble, placé sur le plancher (5) dans la zone centrale du réservoir interne (2).
EP20090150849 2008-01-25 2009-01-19 Appareil avec conteneur flottant pour un câble Active EP2085308B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO20080488A NO327835B1 (no) 2008-01-25 2008-01-25 Anordning med en flytende beholder for opptak av kabel

Publications (3)

Publication Number Publication Date
EP2085308A2 EP2085308A2 (fr) 2009-08-05
EP2085308A3 EP2085308A3 (fr) 2010-12-15
EP2085308B1 true EP2085308B1 (fr) 2012-04-25

Family

ID=40627269

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090150849 Active EP2085308B1 (fr) 2008-01-25 2009-01-19 Appareil avec conteneur flottant pour un câble

Country Status (3)

Country Link
EP (1) EP2085308B1 (fr)
DK (1) DK2085308T3 (fr)
NO (1) NO327835B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018222043A1 (fr) 2017-06-02 2018-12-06 Ihc Holland Ie B.V. Carrousel doté d'un palier à eau

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150090238A (ko) * 2012-11-30 2015-08-05 플로팅 케이블 탱크스 리미티드 도관 저장 또는 전개 시스템 및 관련된 방법
DK178187B1 (en) * 2013-07-11 2015-07-27 Maersk Supply Service As A marine vessel
GB2533113A (en) * 2014-12-09 2016-06-15 Magma Global Ltd Floatable spool apparatus
JP6207667B1 (ja) * 2016-05-11 2017-10-04 一本松物流株式会社 船舶のケーブル送り出し装置
NO344031B1 (en) * 2018-05-09 2019-08-19 Almek Hydraulic Services As An apparatus for storing cable
NO344880B1 (en) * 2018-06-25 2020-06-15 Multi Tech As Floating cable factory

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1081268A (en) * 1965-06-18 1967-08-31 Pirelli Improvements in or relating to floating apparatus for laying or raising submarine cables and the like
US3719348A (en) * 1971-12-15 1973-03-06 Bell Telephone Labor Inc Cable-handling machine
US4647253A (en) * 1985-10-16 1987-03-03 Jacobson Brothers, Inc. Cable turntable assembly
GB0217511D0 (en) * 2002-07-30 2002-09-04 Naturalay Ltd Method and apparatus for laying/recovery of lines on a seabed

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018222043A1 (fr) 2017-06-02 2018-12-06 Ihc Holland Ie B.V. Carrousel doté d'un palier à eau

Also Published As

Publication number Publication date
NO20080488L (no) 2009-07-27
EP2085308A2 (fr) 2009-08-05
DK2085308T3 (da) 2012-07-23
NO327835B1 (no) 2009-10-05
EP2085308A3 (fr) 2010-12-15

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