GB2471257A - Apparatus and method for assembling and servicing underwater power stations - Google Patents

Apparatus and method for assembling and servicing underwater power stations Download PDF

Info

Publication number
GB2471257A
GB2471257A GB1018583A GB201018583A GB2471257A GB 2471257 A GB2471257 A GB 2471257A GB 1018583 A GB1018583 A GB 1018583A GB 201018583 A GB201018583 A GB 201018583A GB 2471257 A GB2471257 A GB 2471257A
Authority
GB
United Kingdom
Prior art keywords
watercraft
supporting
machine gondola
gondola
supporting frame
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.)
Granted
Application number
GB1018583A
Other versions
GB201018583D0 (en
GB2471257B (en
Inventor
Matthias Grassow
Hans Borrmann
Norman Perner
Jochen Weilepp
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.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
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 Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of GB2471257A publication Critical patent/GB2471257A/en
Publication of GB201018583D0 publication Critical patent/GB201018583D0/en
Application granted granted Critical
Publication of GB2471257B publication Critical patent/GB2471257B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/26—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using tide energy
    • F03B13/264—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using tide energy using the horizontal flow of water resulting from tide movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B17/00—Other machines or engines
    • F03B17/06—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
    • F03B17/061—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially in flow direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/916—Mounting on supporting structures or systems on a stationary structure with provision for hoisting onto the structure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/97—Mounting on supporting structures or systems on a submerged structure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/02—Transport, e.g. specific adaptations or devices for conveyance
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Oceanography (AREA)
  • Wind Motors (AREA)
  • Hydraulic Turbines (AREA)

Abstract

The invention relates to a method for carrying out a service measure for an underwater power station comprising a machine gondola with a water turbine that rotates thereon. Said method encompasses the following steps: the machine gondola including the water turbine is hoisted above the water surface by means of a supporting frame which is disposed outboard on a watercraft and can be lowered to the place of installation of the underwater power station by means of a control cable system on booms projecting from the side of the watercraft; bulky components of the machine gondola are dismounted on the supporting frame; the partially dismounted machine gondola is transferred from the supporting frame to the watercraft in order to be further handled by a supporting device which can be moved along the deck of the watercraft by means of a guide rail system.

Description

Device and method for assembling and servicing underwater power stations The invention concerns a device and method for assembling and servicing underwater power stations, in particular free-standing tidal power stations.
Free-standing water power machines, built without dam structures cab be used for using tidal dynamics with minimal flow velocity. It is used preferably for the production of energy using tidal current Consequently, even minimal flow velocities can be used for efficient production of energy providing that the underwater power station has a certain size.
In a typical embodiment, tidal power stations include propeller-shaped water turbines which rotate on a gondola housing, wherein said housing accommodates at least one electrical generator driven by means of the water turbine. The gondola is fastened to a supporting structure, which can be floating or immersed, whereas for the latter a supporting structure is preferred in particular with a foundation on the water bed.
A difficulty in installing generic underwater power stations lies in their size and weight as well as the erection site in the ocean with often harsh weather conditions For offshore wind power stations subjected to the same problems as regards installation, it has been suggested to assemble the whole plant on and to transport it in a single piece to the installation before lowering in an area containing a sea bed portion prepared to that effect. Multiple gravity foundations are used to that end which are part of the pre-fabricated facility. If this concept is transposed to underwater power stations, it appears that such an energy production facility is significantly more difficult of access compared with a wind power station.
Moreover, underwater power stations have to absorb multiple higher forces and torques, which requires a loadable and hence heavier configuration. A modular construction of underwater power station has therefore been suggested. See for instance document EP 1366287 Bi, which discloses that first of all a supporting structure anchored on the water bed is erected under water and in a next installation step a functional unit including the water turbine and the gondola is mounted, which is designated as machine gondola below.
With a coupling device arranged accordingly between the supporting structure and the machine gondola, said device can be raised to water surface for service purposes which dispenses with using a large number of service divers. Document GB 2437533 A discloses another example of such a modular facility. To do so, the machine gondola is lowered on the supporting structure on the water bed by means of an on-board crane of an assembly ship. A larger amount of materials is hence necessary, due to the weight of the machine gondola which integrates the electrical generator and the water turbine.
For simplified installation, a special installation system will be used preferably instead of a standard on-board crane. For the erection of offshore wind power stations it may be referred by way of example to GB 2394498 A in this regard, which discloses a barge with a crane in the form of an A-frame with a double clamping device. It then becomes possible to install a wind power station in the tapered connection piece of a immersed foundation, anchored in the ground. For that purpose, the wind power station is first of all transported flat and placed vertically by means of the A-frame and then lowered gradually on the foundation using the clamping device. Such a device is indeed intended for wind power stations and cannot be transposed straightaway to underwater power stations.
The object of the invention is to provide a device and a method, which enables easy and reliable installation of an underwater power station and wherein for service purposes individual components in particular the machine gondola of a modular underwater power station, can be lifted and maintained as appropriate.
Consequently, the amount of material and the sizing of the watercraft involved should be as small as possible and in particular a floating barge should be sufficient for the installation of the device respectively for the operation of the method.
The object of the invention is hence satisfied by the characteristics of the independent claims. Consequently, at least two cooperating crane-respectively assembly devices are used on a watercraft, for instance a floating platform or a barge. The invention suggests using on the one hand a supporting device for handling assembly components and on the other hand a crane system for lifting and lowering the facility respectively individual assembly components relative to the place of installation on the water bed.
The supporting device for handling assembly components of the underwater power station is mobile by means of a guide rail system along the deck of the watercraft, whereas this guide rail system extends to the working distance of the crane system and the crane system is provided with a span reaching to the water bed.
The supporting device may consist of one or several parts and enables to move the machine gondola as a whole along the deck or to position its assembly components relative to one another. For that purpose a device is preferred which can not only raise and transport the assembly components along the deck but also rotate them so that said assembly components become accessible for assembly and disassembly. The rotation may also be used for outboard disassembling awkward shaped parts such as the rotor blades of the water turbine or a connection piece connected to the lower side of the machine gondola and intended for coupling for the anchored supporting structure of the underwater power station. so that the required lifting height for transport on and along the deck is reduced.
in a first embodiment variation the supporting device uses at least one gripping device mobile along the guide rail system for lateral grasping of a typical cylindrical assembly component. This lateral grasping is either enabled by a gripping device or a connection with frictional and/or positive engagement to an appropriate external flange of the assembly component.
Once the assembly component has been clamped, the gripping device rests by the side of the assembly component so that said assembly component is substantially freely accessible. A lifting device connected to the gripping device is further preferred to raise the assembly component at least so far that it comes free from the deck of the watercraft for transport purposes. In an alternative embodiment of the supporting device the latter is arranged as a lifting system which supports the respective the and revolves using a rotating device The crane system with a span reaching to the water bed may be in the form of an A-frame for a first embodiment. Alternately the crane system may include a vertical supporting frame, arranged outboard, which can be lowered to the water bed using a cable guide. Said supporting frame can lower the whole plant or partial components on the place of installation on the water bed. For service purposes, such a supporting frame can be run under the installed machine gondola with the water turbine and this functional unit can be raised outboard to the watercraft at the water surface in a first recovery step.
in a further recovery step, the supporting device runs on the guide rail system up to a pickup point, predominantly up to the area of the supporting frame, where a connection is provided with the machine gondola, which is raised with respect to the supporting frame and revolves gradually for disassembly of individual assembly components. In this context, the rotor blades of the water turbine as well as of the connection piece for the coupling device are preferably disassembled first of all or placed upwards respectively laterally. The supporting device then only holds a substantially radial functional unit smaller in construction, which is subsequently raised to the deck through a translation movement of the supporting device along the guide rail system and then broken down into individual assembly components.
For that purpose a second supporting device can be used, providing a frictional and/or positive engagement connection with the second end of the functional unit.
It may also be contemplated that at least two supporting devices installed on the same guide rail system each grasp assembly components and position them against one another A corresponding process may be used for disassembly.
Consequently a construction of the supporting device is preferred which allows for a movement of the whole supporting device along the guide rail system as well as contains an XYZ-adjustment mechanism for fine positioning of the assembly component picked up by the supporting device.
In another preferred embodiment of the supporting device, the latter is in the form of a lifting system which supports and carries the respective assembly components whereas additionally a mechanism can be used for rotating the assembly component on the lifting system. Consequently, the guide rail system of the supporting device according to an advantageous embodiment is extended on the supporting frame of the crane system with a span reaching to the water bed. It then becomes possible to transfer the supporting device from the deck of the watercraft to the supporting frame of the crane system or to use a supporting device which is part of the supporting frame and can be used for lowering the machine gondola or its assembly components on the deck of the watercraft.
To do so, the first disassembly described above can be applied for servicing the machine gondola, including the water turbine, once raised above the water surface and lying flat outboard relative to the watercraft. For that purpose the supporting device is first of al transferred along the guide rail system from the watercraft to the supporting frame of the crane system and then runs under the machine gondola lying on the supporting frame then the force is transmitted by the supporting device where as said device acts as a lifting system for handling the machine gondola Said gondola is preferably rotated once lifted, for disassembling protruding construction components, in particular the turbine blades and the connection piece for coupling to the supporting structure. Alternately the machine gondola can be rotated to arrange the connection piece laterally or upwards. Then the lifting system is retracted along the guide rail system to the deck for disassembling respectively servicing the remaining Construction components of the machine gondola on board the watercraft.
The invention will be described below more in detail using exemplary embodiments accompanied by figure drawings. The following details are shown: Figure 1 is a simplified diagram of a modular underwater power station and a device designed according to the invention for service and assembly.
Figure 2 shows an embodiment variation of the invention with a supporting frame for the crane system reaching to the water bed and of a supporting device which runs along guiding rails to the deck of the watercraft and is fitted with a device for lateral grasping.
Figure 3 shows the device of figure 2 when the machine gondola of the underwater power station is raised by the supporting device on the guide rail system.
Figure 4 shows another embodiment of the invention with a supporting device in the form of a lifting system, which can be transferred through an extension of the guide rail system on the supporting frame of the crane system.
Figure 5 shows the execution according to figure 4 when the partially disassembled machine gondola is transferred on the deck of the watercraft.
Figure 1 is a simplified diagram of an underwater power station 1 of modular construction, including a supporting structure 2 resting on the water bed 3, and a machine gondola 4. Consequently, the machine gondola 4 includes a water turbine 5 rotating on the gondola housing, and a connection piece 6, designed for coupling to the supporting structure 2 and inserted in a receptacle 7 fitted with guiding surfaces. To do so, the underwater power station 1 can be lowered as a whole unit during installation. Indeed, a multi-step installation method can be envisioned due to the modular structure, whereas first of all the supporting structure 2 is anchored on the water bed 3 and in a following step the machine gondola 4 is coupled to the supporting structure. Besides the modularity of the underwater power station 1 proves particularly advantageous for proper servicing, since exclusively the machine gondola 4 should be raised for maintenance Purposes.
The device according to the invention, respectively the method according to the invention is described below with the machine gondola in raised position and disassembled for proper servicing. Accordingly the method unfolds as follows for subsequent assembly respectively and alternately for the first installation.
Then, the water turbine 6 is brought above the water line by means of a crane system, whereas in the illustration of figure 1 an A-frame at the rear of a barge 8 is used as crane system. The crane system 9 transfers the machine gondola 4 to a supporting device 10. Said device consists predominantly of two supporting devices 10.1, 10.2, which may run on a common guide rail system 11 along the deck of the barge 8. In the diagrammatic illustration of figure 1 the supporting device 10.1 and 10.2 include each gripping device 12.1, 12.2, with which the assembly components 13.1, 13.2 in a partially disassembled machine gondola may be run and positioned against one another along the guide rail system 11.
Additionally, the supporting devices 10.1 and 10.2 cannot include the fine adjustment devices and lifting devices, which are not shown in detail in the figure illustrations, for carrying out relative spatial movements.
Figure 2 shows an alternative embodiment wherein instead of the A-frame crane a simplified outboard lifting device is provided as crane system 9. Said device includes a supporting frame 15, which can be laid down by means of a control cable system 14 on the place of installation of the underwater power station 1. For that purpose, the cable guide runs over booms 16, which come predominantly in pairs and protrude from the side of the barge 8 to enable vertical lowering of the supporting frame 15. Consequently, the positioning height of the booms 16, substantially horizontal, is preferably designed so that the supporting frame 15 with the machine gondola 4 lying thereon can be raised sufficiently above the water surface for carrying out the first disassembly steps.
Once this first recovery step is completed the bulky components of the machine gondola 4 are disassembled. For that purpose, another crane system, for instance a mobile crane on the barge 8, which is not shown in detail, can assist the disassembly. Furthermore, the supporting device according to the invention 10 is run along the guide rail system 11 up to the rim of the supporting frame 15, so that the gripping device 12 on of the supporting device 10 can grasp the machine gondola 4 and thus be moved for further disassembly. In the illustrated embodiment, a positive and/or frictional engagement connection is provided between the gripping device 12 and a flange 17 on the machine gondola.
Once the supporting device 10 and the machine gondola 4 have formed an operative connection relative to one another the machine gondola 4 can be hoisted from the supporting frame 15 and preferably rotated. Consequently, the purpose of said rotation is mostly to install the connection piece 6 of the machine gondola 4, so that said connection piece can be directed laterally or upwards in order to bring the machine gondola 4 above the rim edge of the barge 8 in a following step and to run it along the guide rail system 11. The transfer step of the supporting frame 15 on the barge 8 is represented in a simplified diagram on figure 3. Then the remaining construction components of the machine gondola 4 can be further disassembled and subjected to service works.
Figure 4 shows another variation of the schematic embodiment of figures 2 and 3.
Thus the supporting device 10 is formed as a lifting system and may be used for raising the machine gondola 4 and its movement along the deck of the barge 8.
For the illustrated embodiment, the guide rail system 11 is lengthened along the supporting frame 15 of the crane system 9. This measure enables to run the lifting system under the machine gondola 4 lying in the supporting frame 15.
Consequently, the machine gondola 4 can be hoisted from the supporting frame by means of a lifting device and preferably rotated so as to disassemble awkward shaped assembly components of the machine gondola 4. Rotation for disassembly of the propellers of the water turbine 6 may be envisaged whereas preferably the machine shaft is fixed in position for that purpose. Additionally, rotation of the machine gondola enables to bring the connection piece 6 above the line of the side wall of the barge 8, to enable the transfer illustrated on figure 5 of the supporting device 10 formed as a lifting system with the machine gondola 4 on the deck of the barge 8 and the further movement along the guide rail system 11.
The device according to the invention allows for efficient on-site disassembly and assembly of a machine gondola on a comparatively simple watercraft with a crane system having minimum lifting height.
List of reference numerals 1 Submarine power plant 2 Supporting structure 3 Water bed 4 Machine gondola Water turbine 6 Connection pieces 7 Receptacle 8 Barge 9 Crane system 10, 10.1, 10.2 Supporting device 11 Guide rail system 12, 12.1, 12.2 Gripping device 13, 13.1, 13.2 Assembly components 14 Rope pull system Supporting frame 16 Boom 17 Flange

Claims (6)

  1. Claims 1. A method for carrying out a service measure for a underwater power station (1), including a machine gondola (4) with a water turbine (5) that rotates thereon, with the following steps: 1.1 the machine gondola (4) including the water turbine (5) is hoisted above the water surface by means of supporting frame (15) arranged outboard on a watercraft and can be lowered to the place of installation of the underwater power station by means of a control cable system (16) on booms (16) projecting from the side of the watercraft; 1.2 bulky components of the machine gondola (4) are disassembled on the supporting frame (15); 1.3 the partially disassembled machine gondola (4) is transferred from the supporting frame (15) to the watercraft for further handling by a supporting device (10, 10.1, 10.2), which is mobile along the deck of the watercraft by means of a guide rail system.
  2. 2. A method according to claim 1, characterised in that the supporting device (10, 10.1, 10.2) is run along the guide rail system (11) up to the rim of the supporting frame (15) so that a gripping device (12) can grasp the machine gondola (4) on the supporting device (10) so as to move it for disassembly.
  3. 3. A method according to claim 2, characterised in that the supporting device (10) hoists the machine gondola (4) from the supporting frame (15) and rotates it for disassembly.
  4. 4. A method according to one of the previous claims, characterised in that the partially disassembled machine gondola (4) is transferred from the supporting frame (15) to the watercraft by the supporting device (10, 10.1, 10.2).
  5. 5. A method according to one of the previous claims, characterised in that the bulky components of the machine gondola (4) are disassembled using another crane system on the watercraft.
  6. 6. A method according to one of the previous claims, characterised in that two supporting devices (10.1, 10.2) are used for further handling of the partially disassembled machine gondola (4) on board the watercraft, wherein said supporting devices can move on said guide rail system (11).
GB1018583.3A 2008-04-25 2009-04-14 Device and method for assembling and servicing underwater power stations Expired - Fee Related GB2471257B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008020965A DE102008020965A1 (en) 2008-04-25 2008-04-25 Apparatus and method for the installation and service of underwater power plants
PCT/EP2009/002720 WO2009129949A2 (en) 2008-04-25 2009-04-14 Apparatus and method for assembling and servicing underwater power stations

Publications (3)

Publication Number Publication Date
GB2471257A true GB2471257A (en) 2010-12-22
GB201018583D0 GB201018583D0 (en) 2010-12-22
GB2471257B GB2471257B (en) 2012-02-29

Family

ID=41111819

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1018583.3A Expired - Fee Related GB2471257B (en) 2008-04-25 2009-04-14 Device and method for assembling and servicing underwater power stations

Country Status (3)

Country Link
DE (1) DE102008020965A1 (en)
GB (1) GB2471257B (en)
WO (1) WO2009129949A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8646390B2 (en) 2009-12-13 2014-02-11 Stiftung Alfred-Wegener-Institut Fuer Polar- Und Meeresforschung Device for the use of technical equipment underwater
US9765647B2 (en) 2010-11-09 2017-09-19 Openhydro Ip Limited Hydroelectric turbine recovery system and a method therefor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010033788A1 (en) * 2010-08-09 2012-02-09 Voith Patent Gmbh Method and apparatus for installing a tented power plant
NL2010545C2 (en) * 2013-03-28 2014-09-30 Ihc Holland Ie Bv Skidding system for an offshore installation or vessel.

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005057006A1 (en) * 2003-12-11 2005-06-23 Uws Ventures Limited Water turbine capable of being lifted out of the water
GB2426295A (en) * 2005-05-21 2006-11-22 Rotech Holdings Ltd Symmetrical aerofoil
GB2431628A (en) * 2005-10-31 2007-05-02 Tidal Generation Ltd A deployment and retrieval apparatus for submerged power generating devices
GB2437533A (en) * 2006-04-28 2007-10-31 Uws Ventures Ltd Turbine and support engagement
US20070284882A1 (en) * 2006-06-08 2007-12-13 Northern Power Systems, Inc. Water turbine system and method of operation
EP1980746A1 (en) * 2007-04-11 2008-10-15 OpenHydro Group Limited A method of installing a hydroelectric turbine
EP1980670A1 (en) * 2007-04-11 2008-10-15 OpenHydro Group Limited Method for the deployment of a hydroelectric turbine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL167376C (en) * 1975-04-29 1981-12-16 Nedlloyd Rederijdiensten B V DRILL EQUIPPED WITH A VERTICAL DRILL SHAFT (MOON POLE) AND A WATERPROOF DOOR VACATION CONNECTED THROUGH THAT WITH A WATERPROOF DOOR, SUCH AS AN ERUPTION VALVE COLUMN (BOP-STACK).
NL7509546A (en) * 1975-08-11 1977-02-15 Ihc Holland Nv SHIP OR SIMILAR FLOATING INSTALLATION WITH EQUIPMENT ASSEMBLY AND LOWERING INTO THE WATER.
DE2620494A1 (en) * 1976-05-08 1977-11-17 Peninsular And Oriental Steam Equipment for launch and recovery of submersibles from mother ships - has A:frame on deck edge pivot supported and carrying movable platform
GB2156286A (en) * 1985-04-29 1985-10-09 Heerema Engineering Installation and removal vessel
NO322927B1 (en) 2001-02-13 2006-12-18 Hammerfest Strom As Device for the production of energy from streams in water bodies, an anchorage, and method of installation of the device
GB2394498B (en) 2002-10-23 2006-08-09 Engineering Business Ltd Mounting of offshore structures
GB0524859D0 (en) * 2005-12-06 2006-01-11 Stolt Offshore As Apparatus for handling modules at sea

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005057006A1 (en) * 2003-12-11 2005-06-23 Uws Ventures Limited Water turbine capable of being lifted out of the water
GB2426295A (en) * 2005-05-21 2006-11-22 Rotech Holdings Ltd Symmetrical aerofoil
GB2431628A (en) * 2005-10-31 2007-05-02 Tidal Generation Ltd A deployment and retrieval apparatus for submerged power generating devices
GB2437533A (en) * 2006-04-28 2007-10-31 Uws Ventures Ltd Turbine and support engagement
US20070284882A1 (en) * 2006-06-08 2007-12-13 Northern Power Systems, Inc. Water turbine system and method of operation
EP1980746A1 (en) * 2007-04-11 2008-10-15 OpenHydro Group Limited A method of installing a hydroelectric turbine
EP1980670A1 (en) * 2007-04-11 2008-10-15 OpenHydro Group Limited Method for the deployment of a hydroelectric turbine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8646390B2 (en) 2009-12-13 2014-02-11 Stiftung Alfred-Wegener-Institut Fuer Polar- Und Meeresforschung Device for the use of technical equipment underwater
US9765647B2 (en) 2010-11-09 2017-09-19 Openhydro Ip Limited Hydroelectric turbine recovery system and a method therefor

Also Published As

Publication number Publication date
WO2009129949A2 (en) 2009-10-29
DE102008020965A1 (en) 2009-10-29
WO2009129949A3 (en) 2010-12-23
GB201018583D0 (en) 2010-12-22
GB2471257B (en) 2012-02-29

Similar Documents

Publication Publication Date Title
KR100656806B1 (en) Wind Energy Turbine
JP6804634B2 (en) Methods and equipment for maintenance of wind turbine components
EP2433001B1 (en) A hub for a wind turbine
EP1518053B1 (en) Method and crane for installing, maintaining, and decommissioning wind turbines
DK2507514T3 (en) Wind energy system with hoisting device
EP3070044B1 (en) Hoisting systems and methods
JP5895291B2 (en) Method and apparatus for installing a tidal power plant
CN102425145B (en) Offshore wind turbine installation platform and hoisting device thereof
AU2008317693A1 (en) Construction method and construction apparatus for offshore wind turbine generator
EP2585712A1 (en) Lifting device and method for positioning of an unwieldy object
EP3922844A1 (en) Apparatus for installation and disassembly of wind turbine and construction method using same
EP2606228A2 (en) Offshore wind turbine and methods of installing same
WO2009041812A1 (en) Method and structure for lifting and attaching a composite structure to a vertical support
EP2256079B1 (en) Device for assembling a large structure at sea
EP2574773B1 (en) Wind turbine installation method and wind turbine assembly suitable for use in said method
GB2471257A (en) Apparatus and method for assembling and servicing underwater power stations
US20240133364A1 (en) Method and blade installation device for installing a blade of an offshore wind turbine
WO2011078685A1 (en) Vessel and method for assembly and installation of a wind turbine at sea
WO2010151145A1 (en) Windmill and method of installation, intervention or decommissioning
WO2010120186A1 (en) Floating windmill and method of installation, intervention or decommissioning
CN112392667A (en) Method for modifying a wind turbine foundation and wind turbine foundation
GB2580103A (en) Underwater pedestal synchronous sinking and posture fixing and solid release control device and method thereof
NL2027279B1 (en) Offshore wind turbine assembly vessel
US20220341397A1 (en) Method of offshore mounting a wind turbine
EP4334586A1 (en) A floating wind power plant and associated equipment

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20160414