WO2014204372A1 - Barge et procédé permettant de manipuler des structures de turbines éoliennes en mer - Google Patents

Barge et procédé permettant de manipuler des structures de turbines éoliennes en mer Download PDF

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Publication number
WO2014204372A1
WO2014204372A1 PCT/SE2013/050752 SE2013050752W WO2014204372A1 WO 2014204372 A1 WO2014204372 A1 WO 2014204372A1 SE 2013050752 W SE2013050752 W SE 2013050752W WO 2014204372 A1 WO2014204372 A1 WO 2014204372A1
Authority
WO
WIPO (PCT)
Prior art keywords
wind turbine
barge
aggregates
fixture
gravity foundation
Prior art date
Application number
PCT/SE2013/050752
Other languages
English (en)
Inventor
Anders Nilsson
Original Assignee
Vingkraft Ab
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 Vingkraft Ab filed Critical Vingkraft Ab
Priority to PCT/SE2013/050752 priority Critical patent/WO2014204372A1/fr
Publication of WO2014204372A1 publication Critical patent/WO2014204372A1/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
    • B63B35/003—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for for transporting very large loads, e.g. offshore structure modules
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
    • E02B17/027—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto steel structures
    • 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
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
    • 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
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/40—Arrangements or methods specially adapted for transporting wind motor components
    • 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
    • B63B35/28—Barges or lighters
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0039—Methods for placing the offshore structure
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0056—Platforms with supporting legs
    • E02B2017/0065—Monopile structures
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0091—Offshore structures for wind turbines
    • 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
    • F05B2230/00—Manufacture
    • F05B2230/60—Assembly methods
    • F05B2230/61—Assembly methods using auxiliary equipment for lifting or holding
    • 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
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • 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
    • Y02E10/70—Wind energy
    • Y02E10/727—Offshore wind turbines
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present invention refers to a barge and a method for handling offshore wind turbine structures.
  • Offshore wind power is becoming more and more common. Better wind speeds are available offshore compared to on land, so offshore wind power's contribution in terms of electricity supplied is higher. Unlike wind over the continent, offshore breezes can be strong in the afternoon, matching the time when people are using the most electricity. Offshore turbines can also be located close to the power-hungry populations along the coasts, eliminating the need for new overland transmission lines.
  • the inventive concept relates a method for handling offshore wind turbine structures comprising arranging at least one transfer carriage at a first wind turbine structure; connecting the transfer carriage to the first wind turbine structure by means of a lifting device arranged at the transfer carriage; moving the first wind turbine structure on a barge by means of the transfer carriage; arranging the first wind turbine structure at a first offshore location by means of the lifting device; releasing the lifting device from the first wind turbine structure; arranging the transfer carriage at a second wind turbine structure on the barge; connecting the transfer carriage to the second wind turbine structure by means of the lifting device; moving the second wind turbine structure on the barge by means of the transfer carriage; and arranging the second wind turbine structure at a second offshore location by means of the lifting device.
  • One advantage of the method of handling offshore wind turbine structures is that one barge may be used for arranging several wind turbine structures, which may save time during offshore transport and installation of the wind turbine structures.
  • Wind turbine structure may for instance be a gravity foundation, a ballast fixture, a wind turbine or a wind turbine transport fixture.
  • the transfer carriage may be used for handling several different wind turbine structures.
  • the first and second offshore locations may be the same locations or different locations.
  • Barge may be held at a particular offshore location during arranging of the first and second wind turbine structures.
  • Barge may be any suitable ship or floating platform for transport of wind turbine structures.
  • By arranging a wind turbine structure at an offshore location may mean that the wind turbine structure is submerged.
  • Positioning the barge may be carried out by means of dynamic positioning, means for stable floating, support legs, anchoring means or any other suitable method for ensuring that the barge is held at a correct position during lowering and/or placing the structures at the site.
  • the first wind turbine structure comprises a gravity foundation structure for an offshore wind turbine and the second wind turbine structure comprises an offshore wind turbine.
  • One advantage of this method is that one barge may be used for handling both the gravity foundation structure and the wind turbine. In addition, it is not necessary to move the barge from the foundation until the wind turbine is arranged at the foundation, which will save time during installation.
  • Wind turbine may either be the wind turbine itself or a transport fixture holding the wind turbine.
  • the first wind turbine structure comprises a gravity foundation structure for an offshore wind turbine
  • the second wind turbine structure comprises an aggregates fixture comprising a housing having at least one cavity for holding aggregates
  • the method comprising lowering the aggregates fixture onto the gravity foundation structure at a seabed; and releasing aggregates from the aggregates fixture into compartments of the gravity foundation.
  • Aggregates may be released from the aggregates fixture to cavities of the gravity foundation through openings in the underside of the aggregates fixture. Such openings may be provided with trap doors or other suitable arrangement for holding the aggregates in the aggregates fixture and release the aggregates from the aggregates fixture when the aggregates fixture is arranged on top of the gravity foundation at the seabed.
  • the method comprises arranging a wind turbine at the first offshore location, wherein the wind turbine comprises a transition piece for handling ice loads on the gravity foundation structure.
  • the transition piece may be tapering.
  • At least one of the wind turbine structures comprises a wind turbine arranged on a tapering transition piece for handling ice loads.
  • the tapering transition piece that handles ice loads i.e. forces occurring on the wind turbine if the sea water freezes into ice, is arranged on the wind turbine and not on the gravity foundation structure.
  • the gravity foundation structure may be handled separate from the transition piece which may facilitate filling the gravity foundation structure with aggregates.
  • the method comprises arranging a wind turbine on a gravity foundation structure by means of connecting the transfer carriage to a wind turbine transport fixture comprising an opening for releasing the wind turbine transport fixture from the wind turbine; and retracting the wind turbine transport fixture from the wind turbine by moving the transfer carriage away from the wind turbine.
  • the inventive concept relates a barge for handling offshore wind turbine structures, comprising a first transport position where a first wind turbine structure is arranged at the barge during transport over sea, a second transport position where a second wind turbine structure is arranged at the barge during transport over sea, a submersion position where a wind turbine structure is arranged when lowered into sea, and at least one transfer carriage which is movable between the first transport position, the second transport position, and the submersion position.
  • the transfer carriage may be used for handling several wind turbine structures. For instance, once a wind turbine structure has been submerged, the carriage may be moved on the barge to handle another wind turbine structure arranged on the barge.
  • the transfer carriage comprises a lifting device for connecting the transfer carriage to the first wind turbine structure and for arranging the first wind turbine structure at an offshore location.
  • a lifting device for connecting the transfer carriage to the first wind turbine structure and for arranging the first wind turbine structure at an offshore location.
  • the barge is arranged to dock with a platform and wherein transfer carriage is arranged to be movable between the barge and the platform.
  • the barge may comprise docking equipment.
  • the dock may be a stationary quay or wharf at a harbour.
  • the dock may also be another barge, such as a transport barge, which is adapted to dock with the barge for moving wind turbine structures from or to the barge.
  • the barge comprises at least two docking portions, wherein the barge is arranged to dock with a platform at the docking portions. It may be advantageous to have more than one docking portion to have several possibilities to move offshore wind turbine structures from and/or to the barge.
  • the two docking portions are opposite end portions of the barge.
  • the docking portions are not necessarily the aft and the fore of the barge, it may also be two opposite side portions of the barge. It may be advantageous that the two docking portions are opposite end portions of the barge since it may facilitate movement of the carriage between the docking portions if the carriage is movable in one direction instead of in several directions.
  • the barge comprises a levelling device for adjusting the horizontal level of the barge to correspond to the horizontal level of the platform.
  • the levelling device may allow the barge to be held at the same horizontal level as a platform such as a transport barge or a wharf.
  • the transfer carriage may be moved from the barge to the platform without the need for any intermediate structure.
  • the levelling device may be water tanks, etc.
  • the barge comprises at least one rail along which the transfer carriage is movable.
  • the rail may run to at least one end portion of the barge such that the transfer carriage is movable from the barge to a platform at which the barge may be docked.
  • the end portion may for instance be the aft or the fore of the barge.
  • the rail runs to two end portions of the barge.
  • the inventive concept relates an
  • aggregates filling device for forwarding aggregates from a barge to a gravity foundation structure arranged on a seabed, comprising an inlet unit for receiving aggregates, an outlet unit for forwarding aggregates into the gravity foundation structure, a forwarding unit arranged between the inlet unit and the outlet unit, fastening means for arranging the aggregates filling device at a centre column of the gravity foundation structure, and rotating means for rotating the aggregates filling device about said centre column.
  • aggregates filling device facilitates filling a gravity foundation structure on a seabed with aggregates.
  • the aggregates filling device comprises a tilting means for moving the outlet unit with respect to the centre column.
  • the tilting means further facilitates filling aggregates into a gravity foundation structure.
  • the inventive concept relates to an aggregate fixture for handling aggregates for an offshore wind turbine gravity foundation structure, comprising a housing having at least one cavity for transport of aggregates, wherein at least one lower portion of the aggregates fixture comprises an aggregates retaining device for retaining aggregates in the cavity, and an opening for discharging aggregates from the aggregates fixture and into the gravity foundation structure.
  • the aggregate fixture may facilitate filling a gravity foundation structure on a seabed with aggregates.
  • the aggregate fixture comprises a central through opening for receiving a centre column of the gravity foundation structure.
  • the inventive concept relates to an assembling fixture for arranging wind turbine wings at a wind turbine, comprising a tower, a socket having a wing holding device, wherein the socket is movable in a vertical direction along the tower to position the wing at an assembling position at wind turbine.
  • the assembling fixture facilitates assembling of wings to at a wind turbine.
  • the wing holding device is movable with respect to the socket for controlling the position of the wing with respect to the wind turbine.
  • Fig. 1 is a perspective view of a barge according to the present invention.
  • Fig. 2 is a perspective view of the barge in Fig. 1 docked in a wharf.
  • Figs 3a-d are perspective views of the barge in Fig. 1 and illustrates a sequence of arranging a gravity foundation structure at a seabed.
  • Fig. 4 is a perspective view of the barge in Fig. 1 , second barge according to the present invention, and a transport barge.
  • Figs 5a-b are perspective views of a barge according to the present invention and illustrate a sequence of arranging a wind turbine at a gravity foundation structure.
  • Figs 6a-b are perspective views of an assembling fixture and illustrate a sequence of arranging a wing at a wind turbine.
  • Figs 7a-d are perspective views of an aggregate filling device and illustrate a sequence of filling aggregates in a gravity foundation structure. Detailed description
  • Fig. 1 illustrates a barge 1 for handling offshore wind turbine structures 2.
  • Wind turbine structures may in the context of this application be for instance a foundation on which the wind turbine is to be arranged, the tower of the wind turbine, the entire wind turbine, or any other equipment used for handling and transporting offshore wind turbine related structures.
  • wind turbine is meant the tower, the rotor blades, and the nacelle with gearbox and generator.
  • Fig. 1 shows two wind turbine structures 2 in the form of one gravity foundation structure 4 and one aggregates fixture 6, which will be described in more detail below.
  • the barge 1 is schematically shown in Fig. 1 .
  • the barge 1 In order for the barge 1 to be drivable and safe it should preferably be equipped with driving equipment, operator control cab, railing at the sides of the barge, tool storage areas, etc. which are not shown in the drawings.
  • gravity foundation structure is meant a structure which is held in place by gravity, in this case on a seabed, and which has the purpose of supporting an offshore wind turbine.
  • the gravity foundation structure shown here is, after being arranged on the seabed, filled with aggregates to complete the gravity foundation and make it heavy enough to support a wind turbine.
  • the barge 1 shown in Fig.1 has two rails 8, 10 running in parallel with each other along the longitudinal direction L of the barge 1 .
  • One transfer carriage 12, 14 is arranged movable on each rail 8, 10.
  • the transfer carriages will also be referred to as carriages 12, 14.
  • the two carriages 12, 14 are movable in parallel with each other on the rails 8, 10.
  • Each carriage 12, 14 is equipped with a lifting device 16, 18.
  • the lifting devices 16, 18 will be described in more detail with reference to Fig. 3c below.
  • the gravity foundation structure 4 shown in Fig. 1 is made of concrete and comprises a vertical centre column 20 having a tapering top portion 22 and a lower portion 24.
  • the lower portion 24 is surrounded by a hexagonal concrete foundation 26 having six compartments 28 that, once the gravity foundation structure 4 is placed on the seabed, are to be filled with
  • the gravity foundation structure 4 further comprises a support plate 30 arranged below the hexagonal concrete foundation 26.
  • the aggregates fixture 6 shown in Fig. 1 has a shape corresponding to the shape of the hexagonal concrete foundation 26 of the gravity foundation structure 4.
  • the aggregates fixture 6 comprises a housing 32 having hexagonal shape with six cavities 34 filled with aggregates 36.
  • the centre of the aggregates fixture 6 comprises a centre opening 38 in order for the aggregates fixture 6 to be slipped on the centre column 20 of the gravity foundation structure 4, which will be described in Fig. 3d below.
  • the aggregates fixture 6 shown in Fig. 1 comprises a support plate 40 of the same kind as the support plate 30 of the gravity foundation structure 4 described above, however the support plate 40 of the aggregates fixture 6 is equipped with a centre opening (not shown in Fig.
  • the barge 1 comprises a submersion position 42, a first transport position 44, and a second transport position 46.
  • the submersion position 42, and the first and the second transport positions 44, 46 are arranged one after the other along the rails 8, 10, i.e. in the longitudinal direction L of the barge 1 .
  • the submersion position 42 is arranged in a first end portion 48 of the barge 1 as seen in the longitudinal direction L of the barge 1 .
  • the rails 8, 10 run from the submersion position 42 at the first end portion of the barge 1 to the second end portion 50 of the barge 1 as seen in the longitudinal direction L.
  • the barge 1 comprises a U-shaped opening 52 wherein the two rails 8, 10 run on opposite sides 54, 56 of the opening 52.
  • the carriages 12, 14 with the lifting devices 16, 18 may, when holding a wind turbine structure 2, submerge the wind turbine structure 2 by lowering it into the sea, which will be described below.
  • the barge 1 in Fig. 1 also show four supporting columns 58 arranged at the first end portion 48 of the barge 1 .
  • the supporting columns 58 may be lowered into sea and placed at a seabed to stabilize the barge 1 when wind turbine structures 2 are lowered into sea.
  • Fig. 2 shows the barge 1 described in connection with of Fig. 1 above made fast to the wharf 60.
  • the wharf 60 is equipped with rails 62, 64 that correspond to the rails 8, 10 of the barge 1 .
  • the barge 1 may be equipped with a height adjustment device (not shown) in order for the barge deck 59 to be held at a vertical level corresponding to the vertical level of the wharf 60.
  • FIG. 2 show wind turbine structures 2, arranged onshore, in the form of five gravity foundation structures 4, four aggregates fixtures 6, and four wind turbines 66. Each wind turbine 66 is supported by a wind turbine transport fixture 68 which will be described in more detail with reference to Fig. 5a below.
  • the five gravity foundation structures 4 shown onshore in Fig. 2 have centre columns 20 of different heights since the gravity foundation structures 4 are adapted to be placed at different sea depths.
  • Fig. 2 further shows a pile 70 of aggregates and a wheel-loader 72 for filling aggregates into the aggregates fixtures 6.
  • the aggregates fixtures 6 are arranged beside the rails 62, 64 on the wharf 60.
  • the aggregates fixtures 6 are moved to a location between the rails 62, 64 before aggregates are filled into the aggregates fixtures 6.
  • the same approach may be used for moving the gravity foundation structure 4 on board from the wharf 60.
  • Any suitable crane (not shown) arranged onshore may be used for placing the gravity foundation structures 4 and/or the aggregates fixtures between the rails 62, 64 on the wharf 60.
  • Figs 3a-d are sequence drawings showing the barge 1 described in connection with Fig. 1 above during submerging and placing a gravity foundation structure 4 on a seabed 80 and thereafter providing aggregates into the gravity foundation structure 4 by means of and the aggregates fixture 6.
  • Figs 3a-d illustrate the barge 1 at a site where the gravity foundation structure 4 is to be arranged on the seabed 80.
  • the seabed 80 i.e. the bottom of the sea, should be planar and without any interrupting stones or the like.
  • a bottom preparation device (not shown) may be used prior to placing the gravity foundation structure 4 on the seabed 80.
  • Fig. 3a illustrates the barge 1 with one gravity foundation structure 4 arranged in the first transport position 44 on the barge 1 and an aggregates fixture 6 arranged in the second transport position 46 on the barge 1 .
  • the carriages 8, 10 are arranged in the first transport position 44 and prepared to pick up the gravity foundation structure 4 by means of the lifting devices 16, 18.
  • Fig. 3b shows the supporting columns 58 of the barge 1 while being lowered into the sea, illustrated by arrows a, to stabilize the barge 1 at the site of deployment.
  • fastening means 81 of the lifting device 18 is illustrated in more detail.
  • the fastenings means 81 comprises a cotter 82 arranged to cooperate with an opening 84 in the support plate 30 of the gravity foundation structure 4.
  • the lifting device 18 further comprises a U-girder 86 arranged to hold an edge 88 of the support plate 30 of the gravity foundation structure 4.
  • the lifting device 18 further comprises a wire 90 connected to a pulley 92 at the carriage 14 for lowering and rising the U-girder 86.
  • the zoomed in view of Fig. 3b show one end portion of the U-girder 86 however, fastening means and wires of the same kind as seen in the zoomed in view of Fig. 3b are arranged in the opposite end portion of the U-girder 86.
  • the opposite carriage 12 comprises the same kind of lifting device 16 as the lifting device 18 described above.
  • the device for controlling and driving the lifting devices 16, 18, such as a motor or a similar device may be used but is not illustrated in the drawings.
  • Fig. 3c illustrates the barge 1 when the gravity foundation structure 4 has been placed on the seabed 80.
  • the support plate 30 of the gravity foundation structure 4 and some portions of the lifting devices 16, 18 are shown in more detail in the lower portions of Fig. 3c.
  • the purpose of the lower portions of Fig. 3c is to illustrate the mechanism of detaching the lifting device 16, 18 from the gravity support structure 4.
  • the hexagonal concrete foundation 26 and the centre column 20 of the gravity support structure 4 are left out from the lower portions of Fig. 3c.
  • the lower portions of Fig. 3c merely show the support plate 30 of the gravity support structure 4, and the U-girders 86, the cotters 82, and the release mechanism 94 of the lifting devices 16, 18.
  • a release mechanism 94 allows the cotters 82 to be withdrawn from the openings 84 in the support plate 30 and the U-girders 86 are forced away from the support plate 30, illustrated by arrows b, for instance by spring members, which is illustrated by arrows c. Thereafter the wires 90 are used for pulling the U-girders 86 upwards, towards the surface of the sea.
  • the carriages 12, 14 may be moved on the rails 8, 10 towards the second transport position 46 where the aggregates fixture 6 is placed.
  • the carriages 12, 14 and the lifting devices 16, 18 are used for lifting and moving the aggregates fixture 6 towards the submersion position 42.
  • Fig. 3d illustrates the aggregates fixture 6 being lowered into sea using the lifting devices 16, 18.
  • Fig. 3d comprises a left and a right lower portion which are closer up views of the aggregates fixture 6 and the gravity foundation structure 4.
  • the tapering top portion 22 of the centre column 20 of the gravity foundation structure 4 facilitates the through centre opening 38 of the aggregates fixture 6 to be slipped onto the centre column 20 of the gravity foundation structure 4.
  • the cavities 34 of the aggregates fixture 6 hold aggregates 36 that are to be transferred from the aggregates fixture 6 to the gravity foundation structure 4 to provide a gravity foundation which has enough mass to be a stable foundation for an offshore wind turbine.
  • a lower portion 96, which here is the bottom, of the aggregates fixture 6 comprises aggregates retaining devices 98 in the form of sliders 98 covering openings 99 in the bottom of the aggregates fixture 6.
  • the aggregates 36 are held in the aggregates fixture 6.
  • the sliders 98 are pulled aside, as shown in the right lower portion in Fig. 3d and as is illustrated by arrows d, aggregates 36 are allowed to fall by gravity from the cavities 34 of the aggregates fixture 6 and into the compartments 28 of the gravity foundation structure 4.
  • FIG. 3d illustrate that aggregates 36 fall by gravity from the aggregates fixture 6 and into the compartments 28 of the gravity foundation structure 4.
  • the slides 98 may be closed and the lifting devices 16, 18 may lift the empty aggregates fixture 6 towards the barge 1 and place the empty aggregates fixture 6 on the barge deck 59, which is shown in Fig. 4.
  • Fig. 4 shows the barge 1 described in connection to Figs 3a-d after aggregates in the aggregates fixture 6 have been emptied into the gravity foundation structure 4, as shown in Fig. 3d, and the empty aggregates fixture 6 has been retracted and placed on the deck 59 of the barge 1 .
  • a transport barge 101 has been docked with the barge 1 using docking equipment 102.
  • Fig. 4 further shows the tapering top portion 22 of centre column 20 of the gravity foundation sticking up from the sea surface.
  • a wind turbine will be arranged at the top portion 22 of centre column 20 of the gravity foundation.
  • Fig. 4 shows a second barge 201 loaded with three wind turbines 266.
  • the transport barge 101 shown in Fig. 4 is equipped with rails 108, 1 10 arranged to be cooperating with the rails 8, 10 of the barge 1 when the transport barge 101 is docked with the barge 1 .
  • the non-shown height adjustment device of the barge 1 may be used to adjust the vertical level of the barge 1 to the vertical level of the transport barge 101 .
  • the transport barge 101 may be equipped with a separate height adjustment device (not shown).
  • the transfer carriages 12, 14 and the lifting devices 16, 18 may be used to move the empty aggregates fixture 6 shown in Fig. 4 from the barge 1 to the transport barge 101.
  • Offshore wind turbine structures may be moved from the transport barge 101 to the barge 1 by means of the carriages 12, 14 when the transport barge 101 is docked with the barge 1 .
  • the transport barge 101 In order for the transport barge 101 to be drivable and safe it should preferably be complete with driving equipment, operator control cab, railing at the sides of the barge, tool storage areas, etc. which are not shown in the drawings.
  • the transport barge 101 may be docked with the barge 1 at end portions 91 , 93 of the barge 1 .
  • the end portions 91 , 93 are the fore and the aft, respectively, of the barge 1.
  • end portions 91 , 93 will also be referred to as fore 91 and aft 93, or docking portions 91 , 93, since the barge 1 is arranged to dock with another platform at the end portions 91 , 93.
  • the rails 8, 10 of the barge 1 run all the way from the aft 93 to the fore 91 why the carriages 12, 14 may be moved on the rails 8, 10 from the barge 1 and over to the transport barge 101.
  • the transport barge 101 is docked with the barge 1 at the end portion of the barge 1 which is closest to the submersion position 42 of the barge 1 , which in the embodiment shown here is the fore 93 of the barge 1 .
  • the second barge 201 shown in Fig. 4 is of the same kind as the barge
  • Each wind turbine 266 loaded on the second barge 201 in Fig. 4 is provided with a wind turbine transport fixture 268.
  • the wind turbine transport fixture 268 will be described in more detail with reference to Figs 5a-b below.
  • the wind turbines 266 and the transport fixtures 268 are transported from a wharf to a barge 1 , 201 using the transport barge 101 .
  • one and the same barge 1 , 201 may be used for arranging the gravity foundation structure 4 and the wind turbine 266 offshore.
  • using two separate barges 1 , 201 may speed up the installation time.
  • Figs 5a-b show a barge 1 , which may just as well be the second barge 201 shown in Fig. 4 but which will be referred to as barge 1 since the barge 1 and the second barge 201 may be identical.
  • Three wind turbines 66, 66', 66" are arranged at the barge 1 .
  • Each wind turbine 66, 66', 66 is held by a respective transport fixture 68.
  • Fig. 5a shows the barge 1 at position for arranging a first wind turbine 66 at a foundation, which may be the gravity foundation structure 4 having the centre column 20 sticking up above the surface of the sea, as described above.
  • the carriages 12, 14 and the lifting devices 16, 18 are used for moving, illustrated by an arrow f, the first wind turbine 66 and its transport fixture 68, on the barge 1 , from the first transport position 44 to the
  • the transport fixture 68 comprises a support plate 230 for being arranged on ground or on the barge deck 59. It is possible to use additional support, during transport over sea, such as fasten the transport fixture 68 and/or the wind turbine 66 to the barge 1 using bolts (not shown).
  • the transport fixture 68 further comprises an upright support 267 and a hinged retainer 269 for supporting the wind turbine 66 during transport.
  • the support plate 230 of the transport fixture 68 is similar to the support plate 30 of the gravity foundation structure 4 in that the support plate 230 of the transport fixture 68 comprises fastening means to cooperate with the lifting devices 16, 18 of the carriages 12, 14.
  • the fastening means of the support plate 230 are openings 284 for fitting the cotter 82 of the lifting device 16, 18, in the same manner as described in connection to Figs 3b-c above.
  • the difference between the support plate 230 of the transport fixture 68 and the support plate shown in Figs 3b-c is that the support plate 230 of the transport fixture 68 comprises an opening 231 which will be described and shown in Fig. 5b below.
  • the opening 231 allows the support plate 230, and thus the entire transport fixture 68, to be retracted from the wind turbine 66 once the wind turbine 66 has been arranged at the gravity foundation structure 4, which is illustrated in Fig. 5b below.
  • the lifting devices 16, 18 are used for lowering the wind turbine 66 and the transport fixture 68 towards the centre column 20.
  • a transition piece 271 is arranged at the lower portion of each wind turbine 66.
  • the transition piece 271 is fastened to the wind turbine 66 and is shaped to be placed at the centre column 20 the gravity foundation structure 4.
  • the shape of the top portion 22 of centre column 20, i.e. the top portion 22 is tapering upwards, facilitates placing of the transition piece 271 onto the centre column 20.
  • the transition piece 271 may be conical, tapering towards the seafloor, to be able to handle ice loads from the sea.
  • the wind turbine 66 and the transition piece 271 are arranged at the centre column 20 of the gravity foundation structure 4 simultaneously, since the transition piece 271 is pre-assembled at the wind turbine 66.
  • Fig. 5b shows the wind turbine 66 after being placed at the gravity support structure (see Fig. 5a).
  • the barge 1 has been retracted, illustrated by an arrow g, from the wind turbine 66 leaving the transport fixture 68 at the barge 1 .
  • the support plate 230 of the transport fixture 68 is held by the lifting devices 16, 18.
  • the hinged retainer 269 is in an open position allowing the transport fixture 68 to be separated from the wind turbine 66.
  • the empty transport fixture 68 should be removed from the barge 1 .
  • Another barge such as the transport barge 101 shown in Fig.
  • the empty transport fixture 68 may be move to another barge, or to a wharf, using the carriages 12, 14.
  • Figs 6a-b show an assembling fixture 301 for assembling a wind turbine 66.
  • the wind turbine 66 shown in Fig. 6a has already been equipped with one wing 308.
  • the assembling fixture comprises a tower 302 and a socket 304.
  • the socket 304 is movable along the tower 302.
  • the socket 304 comprises two arms 306 for holding a wing 308' to be arranged at the nacelle housing 310 of the wind turbine 66.
  • the wing 308' may be arranged at the arms 306 by a lifting device such as a lifting crane (not shown).
  • Fig. 6a shows the socket 304 in a position close to the ground.
  • a wind turbine wing 308' has been placed at the arms 306 of the socket 304.
  • the assembling fixture 301 is arranged at a wind turbine 66 in a position such that, by raising the socket 304 vertically upwards, illustrated by an arrow P in Fig. 6b, the wing 308' will be in a suitable position, at the nacelle housing 310, for being fastened to the wind turbine 66.
  • the wing 308' may be fastened manually for instance using bolts (not shown).
  • the socket 304 may be lowered and another wing (not shown) may be arranged in the arms 306 of the socket 304.
  • the nacelle housing 310 may be rotated such that the nacelle housing 310 is arranged in a position for receiving a third wing (not shown) from the assembling fixture 301 .
  • the two arms 306 of the assembling fixture 301 may be arranged movable (not shown in the drawings) with respect to the socket 304.
  • the assembling fixture 301 shown in Figs 6a-b may be arranged on rails 362, 363 in order for the assembling fixture 301 to be movable between several different wind turbines 66 arranged on a wharf (see Fig. 2).
  • the wind turbines 66 may be arranged on rails 364, 365, which are illustrated in Figs 6a-b.
  • Figs 6a-b also illustrates two rails 62, 64 running orthogonal to the rails 362, 363, 364, 365 of the assembling fixture 301 and the wind turbine 66.
  • These rails 62, 62 may be used for moving an assembled wind turbine 66 from the assembling position at a wharf, which is shown in Figs 6a-b, to a barge 1 .
  • the carriages 12, 14 (see Fig. 2) may be used for moving the wind turbine 66 and its transport fixture 68 from the wharf to the barge 1 .
  • Figs 7a-d show an aggregates filling device 401 and a sequence for filling aggregates 36 into a gravity foundation structure 4 arranged on a seabed 80.
  • the gravity foundation structure 4 may be of the same kind as described with reference to Fig. 1 above.
  • the aggregates filling device 401 shown in Figs 7a-d is arranged at the centre column 20 of the gravity foundation structure 4 by means of fastening means 402.
  • the aggregates filling device 401 is arranged detachable at the centre column 20.
  • Fig. 7a shows the aggregates filling device 401 before filling of aggregates 36 into the gravity foundation structure 4 has started.
  • the aggregates filling device 401 comprises an inlet unit 404 in form of a hopper 404 into which aggregates 36 may be filled by for instance a shovelling machine 406 placed on a barge 1 .
  • the barge 1 may be the same barge 1 as described above with reference to Fig. 1 . Therefore, it is possible that the barge 1 shown in Fig. 7a have just arranged the gravity foundation structure 4 on the seabed 80 using the barge 1 .
  • Figs 7a-d is to illustrate the aggregates filling device 401 the carriages 12, 14 and lifting devices 16, 18 are omitted.
  • the gravity foundation structure 4 has been arranged on the seabed 80 by a different barge, or in any other suitable way.
  • the aggregates filling device 401 may be arranged on the centre column 20 of the gravity foundation structure 4 either prior to or after the gravity foundation structure 4 is arranged on the seabed 80. Further, the aggregates filling device 401 comprises a forwarding unit 408 in form of a telescopic tube 408 through which aggregates 36 is forwarded from the hopper 404 and down to the compartments 28 of the gravity foundation structure 4 on the seabed 80.
  • Fig. 7b shows the aggregates filling device 401 when the telescopic tube 408 has been extended, shown by an arrow h, such that the lower end 410, which is the outlet unit 410, of the telescopic tube 408 has reached down to the compartments 28 of the gravity foundation structure 4 on the seabed 80.
  • the upper portion of Fig. 7b is a perspective view showing the barge 1 , the gravity foundation structure 4, and the 401 aggregates filling device 401.
  • the lower right and lower left views in Fig. 7b are side views showing the aggregates filling device 401 and the gravity foundation structure 4.
  • Fig. 7b shows that the fastening means 402 of the aggregates filling device 401 allows the lower end 410 of the telescopic tube 408 to be moved sideways, illustrated by an arrow j, in order for the entire compartment to be filled with aggregates 36.
  • the sideways movement may be handled by a tilting device 212 such as a horizontally mounted cylinder.
  • Fig. 7c shows that aggregates 36 are filled into one compartment 28 of the gravity foundation structure 4 by means of filling aggregate 36 into the hopper 404, illustrated by an arrow m.
  • Fig. 7d shows that the aggregates filling device 401 is arranged rotatably about the centre column 20 of the gravity foundation structure 4, illustrated by an arrow n.
  • aggregates 36 may be filled in all
  • compartments 28 of the gravity foundation structure 4 by rotating the aggregates filling device 401 about the centre column 20.
  • the rotation may be performed by any suitable rotating means such as pushing the aggregates filling device 401 about the centre column 20 using the shovelling machine 406.
  • the rotation of the aggregates filling device 401 about the centre column 20 may be automated.
  • a camera device (not shown) for controlling the amount of aggregates filled in the different compartments 28 of the gravity foundation structure 4 at the seabed 80. For stability reasons it may be preferred to fill to opposite located compartments 28 first and thereafter fill the other compartments 28 of the gravity foundation structure 4.
  • the gravity foundation structure 4 described above is not limited to a gravity foundation structure made of concrete but may be made of any suitable material.
  • the two carriages shown in this application are illustrated and described as two separate carriages movable on two rails.
  • the two carriages are connected to each other thus making one common carriage, or that the two carriages are releaseably connected to each other. It may also be possible to use one single carriage.
  • the lifting device described in connection to the drawings above represent one possible embodiment of a lifting device.
  • the skilled person realises that there are many other possible lifting devices which would be suitable for the purpose of lifting and/or lowering and/or submerging offshore wind turbine structures.
  • the wires may be chains, the U-girder and the fastening means may be exchanged with some other equipment for holding and releasing the wind turbine structures.
  • the concrete foundations 26 shown above are hexagonal, i.e. having six compartments 28 that are to be filled with aggregates. It is possible to have any suitable shape of the concrete foundations, and any suitable number of compartments. For instance it is possible to use an octagonal or a square shaped concrete foundation.
  • the transfer carriages 12, 14 are movable on the barge 1 by means of rails 12, 14 at the barge 1 . It is realized that it is possible to use other means than rails for moving the transfer carriages 12, 14 on the barge 1 . Any other moving and/or guiding means may be used such as for instance sliding beams or wheels.
  • the above described longitudinal direction L of the barge 1 should not be limited to denote the driving direction of the barge 1 . It may be convenient to have the driving direction of the barge 1 along the above mentioned longitudinal direction L however there may also be situations when the longitudinal direction L described above is not the driving direction of the barge 1 .
  • Fig. 3b described one example of a lifting device 18.
  • the lifting device 16 at the opposite carriage 8 may have the same design as the lifting device 18 described in connection to Fig. 3b.
  • other types of lifting devices that are suitable for submerging offshore wind turbine structures 2 may be used.
  • the barge 1 described above comprises four supporting columns 58 that may be lowered into sea and arranged at the seafloor 80 during submersion of wind turbine structures. However, it is possible that the barge 1 is held in position by other means than supporting columns during
  • the supporting columns 58 may be used for jacking up the barge 1 during submersion of wind turbine structures.
  • barge means any type of ship which is suitable to transport a gravity base structure or a wind turbine over sea.
  • offshore wind turbines includes inshore water areas such as lakes, fjords and sheltered coastal areas, utilizing traditional fixed-bottom wind turbine technologies, as well as deep-water areas utilizing floating wind turbines.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Transportation (AREA)
  • Ocean & Marine Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Wind Motors (AREA)

Abstract

La présente invention concerne un procédé permettant de manipuler des structures de turbines éoliennes en mer (2, 4, 6, 66, 68) comportant l'étape consistant à arranger au moins un chariot de transfert (12, 14) au niveau d'une première structure de turbine éolienne (4) ; connecter le chariot de transfert (12, 14) à la première structure de turbine éolienne (4) au moyen d'un dispositif de levage (16, 18) arrangé au niveau du chariot de transfert (12, 14) ; déplacer la première structure de turbine éolienne (4) sur une barge (1) au moyen du chariot de transfert (12, 14) ; arranger la première structure de turbine éolienne (4) au niveau d'un premier emplacement en mer (80) au moyen du dispositif de levage (16, 18) ; libérer le dispositif de levage (16, 18) de la première structure de turbine éolienne (4) ; arranger le chariot de transfert (12, 14) au niveau d'une deuxième structure de turbine éolienne (6, 66, 68) sur la barge (1) ; connecter le chariot de transfert (12, 14) à la deuxième structure de turbine éolienne (6, 66, 68) au moyen du dispositif de levage (16, 18) ; déplacer la deuxième structure de turbine éolienne (6, 66, 68) sur la barge (1) au moyen du chariot de transfert (12, 14) ; et arranger la deuxième structure de turbine éolienne (6, 66, 68) au niveau d'un deuxième emplacement en mer (80) au moyen du dispositif de levage (16, 18).
PCT/SE2013/050752 2013-06-20 2013-06-20 Barge et procédé permettant de manipuler des structures de turbines éoliennes en mer WO2014204372A1 (fr)

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CN106894953A (zh) * 2017-02-28 2017-06-27 天津大学 一种海上四筒基础式风电整机安装船及其一步式施工方法
CN106965906A (zh) * 2017-02-28 2017-07-21 天津大学 一种海上三筒基础式风电整机安装船及其一步式施工方法
KR20170109094A (ko) * 2016-03-17 2017-09-28 삼성중공업 주식회사 해양구조물 설치선박
KR20180003214A (ko) * 2016-06-30 2018-01-09 삼성중공업 주식회사 분리형 해상 구조물 설치 선박 및 그 운용 방법
JP2018047839A (ja) * 2016-09-23 2018-03-29 三井海洋開発株式会社 作業台船及び洋上構造物の施工方法
KR20180035379A (ko) * 2016-09-29 2018-04-06 삼성중공업 주식회사 부유식 구조물 및 이를 이용한 해상풍력 발전설비의 설치 방법
CN108909950A (zh) * 2018-05-17 2018-11-30 中交航局第二工程有限公司 一种重力式基础和风机整机运输安装的方法
KR20190014846A (ko) * 2017-08-04 2019-02-13 삼성중공업 주식회사 구조물 설치용 선박
KR20190072163A (ko) * 2017-12-15 2019-06-25 삼성중공업 주식회사 해상풍력발전장치의 하부구조물 설치선박 및 설치방법
ES2785802A1 (es) * 2019-04-05 2020-10-07 Esteyco S A Procedimiento de instalacion de un aerogenerador de torre mar adentro
WO2021040516A1 (fr) * 2019-08-23 2021-03-04 Delft Offshore Turbine B.V. Système de transport d'une structure en mer
US11161571B2 (en) * 2019-04-01 2021-11-02 Phoenix Ii A/S Method of securing and transferring a load between a vessel and an offshore installation and an apparatus therefor
WO2023226818A1 (fr) * 2022-05-27 2023-11-30 大连理工大学 Navire tout-en-un de transport de machine complète d'éolienne en mer ayant une fonction de compensation d'onde, et son procédé de montage

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US20110139056A1 (en) * 2008-06-20 2011-06-16 Jean-Marc Cholley Structure for transport and offshore installation of at least one wind turbine or underwater generator, and methods for transport and offshore installation of at least one wind turbine or underwater generator
WO2010147480A1 (fr) * 2009-06-16 2010-12-23 Master Marine Asa Dispositif et procédé pour l'installation de pales de turbine éolienne
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KR20170109094A (ko) * 2016-03-17 2017-09-28 삼성중공업 주식회사 해양구조물 설치선박
KR101864144B1 (ko) * 2016-03-17 2018-06-05 삼성중공업 주식회사 해양구조물 설치선박
KR20180003214A (ko) * 2016-06-30 2018-01-09 삼성중공업 주식회사 분리형 해상 구조물 설치 선박 및 그 운용 방법
JP2018047839A (ja) * 2016-09-23 2018-03-29 三井海洋開発株式会社 作業台船及び洋上構造物の施工方法
KR20180035379A (ko) * 2016-09-29 2018-04-06 삼성중공업 주식회사 부유식 구조물 및 이를 이용한 해상풍력 발전설비의 설치 방법
KR101915022B1 (ko) 2016-09-29 2018-11-06 삼성중공업(주) 부유식 구조물 및 이를 이용한 해상풍력 발전설비의 설치 방법
CN106894953A (zh) * 2017-02-28 2017-06-27 天津大学 一种海上四筒基础式风电整机安装船及其一步式施工方法
CN106965906A (zh) * 2017-02-28 2017-07-21 天津大学 一种海上三筒基础式风电整机安装船及其一步式施工方法
CN106965906B (zh) * 2017-02-28 2018-11-20 天津大学 一种海上三筒基础式风电整机安装船及其一步式施工方法
KR20190014846A (ko) * 2017-08-04 2019-02-13 삼성중공업 주식회사 구조물 설치용 선박
KR102027209B1 (ko) * 2017-08-04 2019-10-01 삼성중공업 주식회사 구조물 설치용 선박
KR20190072163A (ko) * 2017-12-15 2019-06-25 삼성중공업 주식회사 해상풍력발전장치의 하부구조물 설치선박 및 설치방법
KR102106498B1 (ko) 2017-12-15 2020-05-04 삼성중공업 주식회사 해상풍력발전장치의 하부구조물 설치선박 및 설치방법
CN108909950A (zh) * 2018-05-17 2018-11-30 中交航局第二工程有限公司 一种重力式基础和风机整机运输安装的方法
US11161571B2 (en) * 2019-04-01 2021-11-02 Phoenix Ii A/S Method of securing and transferring a load between a vessel and an offshore installation and an apparatus therefor
ES2785802A1 (es) * 2019-04-05 2020-10-07 Esteyco S A Procedimiento de instalacion de un aerogenerador de torre mar adentro
WO2020201605A1 (fr) * 2019-04-05 2020-10-08 Esteyco S.A. Procédé d'installation d'un aérogénérateur d'une tour marine au large
WO2021040516A1 (fr) * 2019-08-23 2021-03-04 Delft Offshore Turbine B.V. Système de transport d'une structure en mer
NL2023699B1 (en) * 2019-08-23 2021-05-04 Delft Offshore Turbine B V System for transporting an offshore structure
WO2023226818A1 (fr) * 2022-05-27 2023-11-30 大连理工大学 Navire tout-en-un de transport de machine complète d'éolienne en mer ayant une fonction de compensation d'onde, et son procédé de montage

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