WO2014139532A1 - Procédé et appareil de manipulation d'un pylône d'éolienne pour assemblage et stockage au bord d'un quai, et transport vers un site d'installation en mer - Google Patents

Procédé et appareil de manipulation d'un pylône d'éolienne pour assemblage et stockage au bord d'un quai, et transport vers un site d'installation en mer Download PDF

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Publication number
WO2014139532A1
WO2014139532A1 PCT/DK2014/050046 DK2014050046W WO2014139532A1 WO 2014139532 A1 WO2014139532 A1 WO 2014139532A1 DK 2014050046 W DK2014050046 W DK 2014050046W WO 2014139532 A1 WO2014139532 A1 WO 2014139532A1
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WO
WIPO (PCT)
Prior art keywords
tower
coupled
track
trolley
stand
Prior art date
Application number
PCT/DK2014/050046
Other languages
English (en)
Inventor
Adrian Botwright
Original Assignee
Mhi Vestas Offshore Wind A/S
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 Mhi Vestas Offshore Wind A/S filed Critical Mhi Vestas Offshore Wind A/S
Publication of WO2014139532A1 publication Critical patent/WO2014139532A1/fr

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Classifications

    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/14—Arrangement of ship-based loading or unloading equipment for cargo or passengers of ramps, gangways or outboard ladders ; Pilot lifts
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D15/00—Movable or portable bridges; Floating bridges
    • E01D15/24—Bridges or similar structures, based on land or on a fixed structure and designed to give access to ships or other floating structures
    • 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
    • F05B2240/95—Mounting on supporting structures or systems offshore
    • 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

Definitions

  • This application relates generally to wind turbines, and more particularly to a method and apparatus for handling wind turbine towers on the quay side and on a seafaring vessel for transport to an off-shore installation site.
  • Wind turbines are used to produce electrical energy using a renewable resource and without combusting a fossil fuel.
  • a wind turbine converts kinetic energy from the wind into mechanical energy and then subsequently converts the mechanical energy into electrical power.
  • a horizontal-axis wind turbine includes a tower, a nacelle located at the apex of the tower, and a rotor that is supported in the nacelle.
  • the rotor is coupled either directly or indirectly with a generator, which is housed inside the nacelle.
  • the rotor includes a central hub and a plurality of blades (e.g., three blades) mounted thereto and extending radially therefrom.
  • Modern multi-megawatt wind turbines are massive structures and are generally assembled from smaller component parts.
  • many off-shore wind turbines have their various components delivered to a quay side for subsequent delivery to the off-shore installation site. Some installation procedures may call for some amount of assembly quay side resulting in a number of main component assemblies.
  • the wind turbine tower which may be formed by a number of tower sections, may be assembled quay side for delivery to an off-shore installation site.
  • the nacelle may also be delivered quay side in a complete or nearly-complete form.
  • the blades themselves being quite massive in size, may be delivered quay side for subsequent delivery to the off-shore installation site.
  • These various main component assemblies e.g., the tower, nacelle, and blades, are then loaded onto a seafaring vessel and transported to the installation site for final assembly.
  • the vessel For efficient installation of an off-shore wind farm, for example, the vessel will be loaded with as many complete wind turbines as possible.
  • the vessel will carry the main component assemblies for a number of complete wind turbines. The number of complete wind turbines depends upon several factors, including the particular vessel utilized for transport.
  • all the main component assemblies for example, all the towers, will be serially arranged along the quay side adjacent the water edge in an upright orientation prior to the docking of the vessel along the quay side. All the main component assemblies, including the towers, must be located close to the water edge so as to be within reach of the vessel's onboard crane or other loading crane. In this way, the crane may load the main component assemblies onto the vessel without having to move the position of the vessel along the quay side.
  • the upright towers may be on the quay side for several days prior to being loaded on the vessel. During this time, the towers are subject to potentially large wind forces and therefore, must be supported in some manner so as to prevent the towers from falling over.
  • Current systems and techniques for supporting the towers call for fixedly coupling each of the towers to a tower stand having a relatively large square or rectangular base for supporting the tower. The base then rests upon the quay side without further physical coupling of the base to the quay side. The enlarged footprint of the base on the quay side then prevents the tower from falling over when subjected to loads induced by the wind or other forces.
  • the size of the tower base may be selected based on estimated worst-case wind conditions at the quay side.
  • the tower base may have a dimension of about 9.5 m x 9.5 m to prevent the tower from falling over under estimated worst-case wind conditions.
  • the increased footprint of the tower stand also distributes the load from the tower into the quay side, thereby reducing the required strength of the quay side. If the quay side cannot support the weight of the tower, then some method of ground improvement is necessary, which is costly. However, as a result of the increased footprint, a significant amount of the quay side is taken up by the tower stands.
  • an apparatus for handling wind turbine towers includes a structure coupled to the ground in a manner that supports reversible tensile and compressive loading of the structure, and a tower stand configured to be coupled to a wind turbine tower and further configured to be fixedly coupled to the structure, wherein when the tower stand, having a tower coupled thereto, is fixedly coupled to the structure, the tower is effectively coupled to the ground in a manner that supports reversible tensile and compressive loading of the tower.
  • the reversible tensile and compressive loading of the tower generally acts in the vertical direction.
  • the structure includes a movable portion and the tower stand is configured to be fixedly coupled to the movable portion of the structure so as to allow movement of the tower on the ground.
  • the structure includes a track coupled to the ground in a manner that supports reversible tensile and compressive loading of the track, wherein the track has a first end adjacent a water edge of the ground and a second end remote from the water edge, and a trolley coupled to the track in a manner that allows the trolley to move along the track and further coupled to the track in a manner that supports reversible tensile and compressive loading of the trolley.
  • the tower stand may be configured to be selectively and fixedly coupled to the trolley.
  • the tower stand may be further configured to be selectively and fixedly coupled to the track, wherein when the tower stand, having a tower coupled thereto, is fixedly coupled to the track, the tower is effectively coupled to the ground in a manner that supports reversible tensile and compressive loading of the tower.
  • the tower stand may be fixedly coupled to the trolley with or without the tower stand being fixedly coupled to the track, and the tower stand may be fixedly coupled to the track with or without the tower stand being fixedly coupled to the trolley.
  • the apparatus may include a coupling mechanism for fixedly coupling the tower stand to the trolley.
  • the coupling mechanism includes one or more tangs associated with the trolley and movable between a first position and a second position, one or more clevises associated with the tower stand and configured to receive a respective tang, and a pin insertable through bores of the one or more clevises and the one or more tangs to achieve the fixed coupling.
  • the apparatus may also include a locking mechanism for fixedly coupling the tower stand to the track.
  • the locking mechanism includes one or more locking pins associated with the track and movable between a first position and a second position, and one or more pin receptacles associated with the tower stand and configured to receive a respective locking pin therein.
  • the apparatus further includes a drive mechanism for moving the trolley along the track.
  • the drive mechanism may include a rack-and-pinion arrangement.
  • the track may include one or more racks and the trolley may include one or more driven gears that interact with the rack to move the trolley along the track.
  • the track may include a pair of rails arranged in generally parallel relationship to each other. The track, such as the rails, may be coupled to the ground by a plurality of piles that support the track under reversible tensile and compressive loading.
  • the tower stand is fixedly coupled to the trolley, the tower stand is configured to slide along the track, such as on the upper surface of the rails, with movement of the trolley along the track.
  • the apparatus may further include a frame configured to be fixedly coupled to a deck of a vessel in a manner that supports reversible tensile and compressive loading of the frame.
  • the frame is further configured to be selectively and fixedly coupled to the tower stand, wherein when the tower stand, having a tower coupled thereto, is fixedly coupled to the frame, the tower is effectively coupled to the vessel in a manner that supports reversible tensile and compressive loading of the tower.
  • the frame includes a locking mechanism for fixedly coupling the tower stand to the frame, wherein the locking mechanism includes one or more locking pins associated with the frame and movable between a first position and a second position, and one or more pin receptacles associated with the tower stand and configured to receive a respective locking pin therein.
  • an apparatus for handling wind turbine towers for transport to an off-shore installation site includes a track coupled to the quay side in a manner that supports reversible tensile and compressive loading of the track, wherein the track has a first end adjacent a water edge of the quay side and a second end remote from the water edge; a trolley coupled to the track in a manner that allows the trolley to move along the track and further coupled to the track in a manner that supports reversible tensile and compressive loading of the trolley when coupled to the track; and a tower stand configured to be coupled to a wind turbine tower and further configured to be selectively and fixedly coupled to the trolley, wherein when the tower stand, having a tower coupled thereto, is fixedly coupled to the trolley, the tower is effectively coupled to the quay side in a manner that supports reversible tensile and compressive loading of the tower.
  • a method for handling wind turbine towers for transport to an off-shore installation site includes: i) coupling a tower stand to a wind turbine tower; ii) fixedly coupling the tower stand to a trolley movably coupled to a track, wherein the track includes a first end adjacent a water edge of a quay side and a second end remote from the water edge, the track being coupled to the quay side in a manner that supports reversible tensile and compressive loading of the track, and the trolley coupled to the track in a manner that supports reversible tensile and compressive loading of the trolley; and iii) moving the trolley along the track to move the tower toward the first end of the track.
  • the method may further include: iv) fixedly coupling the tower stand to the track in a manner that supports reversible tensile and compressive loading of the tower.
  • steps i.e., steps i)-iii) or steps i)-iv may be repeated for additional wind turbine towers to provide a plurality of towers positioned adjacent the first end of the track.
  • the plurality of towers may be serially arranged so as to extend away from the water edge.
  • the same trolley may be used to move each of the towers in the plurality of towers adjacent the first end of the track.
  • the method may further include: v) removing the tower from the track; vi) removing the tower stand from the track; and vii) loading the tower onto a vessel.
  • the tower stand remains coupled to the tower when the tower is removed from the track such that removal of the tower from the track also removes the tower stand.
  • loading the tower onto the vessel further comprises coupling the tower to the vessel using the tower stand.
  • the method may further include moving the next tower in the plurality of towers toward the first end of the track and repeating steps v)-vii) on the next tower. These steps may be repeated until all of the towers in the plurality of towers are loaded onto the vessel.
  • an apparatus for handling wind turbine towers for transport to an off-shore installation site includes a structure configured to be coupled to a quay side in a manner that supports reversible tensile and compressive loading of the structure; a frame configured to be coupled to a deck of a vessel; and a tower stand configured to be coupled to a wind turbine tower and further configured to be selectively coupled to the structure on the quay side and further configured to be selectively coupled to the frame on the deck of the vessel.
  • the tower stand having a tower coupled thereto, is coupled to the structure, the tower is effectively coupled to the quay side in a manner that supports reversible tensile and compressive loading of the tower.
  • the tower stand when the tower stand, having a tower coupled thereto, is coupled to the frame, the tower is effectively coupled to the vessel in a manner that supports reversible tensile and compressive loading of the tower.
  • the structure includes a movable portion, wherein the tower stand is configured to be coupled to the movable portion of the structure so as to allow movement of the tower on the quay side.
  • a method for loading a plurality of wind turbine towers onto a vessel for transport to an off-shore installation site includes: i) serially arranging a plurality of towers on a quay side adjacent a water edge; ii) loading the tower closest to the water edge onto the vessel; iii) moving the next tower in the plurality of towers closest to the water edge; and iv) repeating steps ii) and iii) until each of the towers in the plurality of towers has been loaded onto the vessel.
  • serially arranging the plurality of towers on the quay side further includes serially arranging the towers on a track coupled to the quay side, each of the towers being movable along the track.
  • moving the next tower closer to the water edge further includes moving a trolley coupled to the next tower along the track toward the water edge.
  • Fig. 1 is a diagrammatic perspective view of an off-shore wind turbine
  • FIG. 2 is a perspective view of a portion of a handling system for wind turbine towers on the quay side in accordance with one embodiment of the invention
  • FIG. 3 is a partial perspective view of a track of the handling system in accordance with one embodiment of the invention.
  • FIG. 4 is another partial perspective view of a track of the handling system in accordance with one embodiment of the invention.
  • FIG. 5 is a partial perspective view of a trolley of the handling system in accordance with one embodiment of the invention.
  • Fig. 6 is a partial cross-sectional view of a drive mechanism for the handling system in one embodiment of the invention.
  • FIG. 7 is a partial perspective view of the handling system illustrating a tower stand coupled to the trolley in accordance with one embodiment of the invention
  • FIG. 8 is a partial cross-sectional view of the handling system illustrated in Fig. 7;
  • FIG. 9 is a partial perspective view of a coupling mechanism for coupling a tower stand to a trolley in accordance with one embodiment of the invention.
  • Fig. 10 is a partial perspective view of a locking mechanism for coupling a tower stand to a track in accordance with one embodiment of the invention.
  • Fig. 1 1 is a diagrammatic perspective view of use of the handling system in accordance with one embodiment of the invention.
  • an off-shore wind turbine 10 includes a foundation 12 which extends into the water, a tower 14 coupled to the foundation 12 at a lower end thereof, a nacelle 16 disposed at the apex of the tower 14, and a rotor 18 operatively coupled to a generator (not shown) housed inside the nacelle 16.
  • the foundation 12 may be a floating
  • the nacelle 16 houses miscellaneous components required for converting wind energy into electrical energy and various components needed to operate, control, and optimize the performance of the wind turbine 10.
  • the tower 14 supports the load presented by the nacelle 16, the rotor 18, and other components of the wind turbine 10 that are housed inside the nacelle 16 and also operates to elevate the nacelle 16 and rotor 18 to a height above sea level at which faster moving air currents of lower turbulence are typically found.
  • the rotor 18 of the wind turbine 10 which is represented as a horizontal-axis wind turbine, serves as the prime mover for the
  • the rotor 18 of wind turbine 10 includes a central hub 20 and at least one blade 22 that projects outwardly from the central hub 20 at locations circumferentially distributed thereabout.
  • the rotor 18 includes three blades 22, but the number may vary.
  • the blades 22 are configured to interact with the passing air flow to produce lift that causes the rotor 18 to spin generally about a longitudinal axis 24.
  • the wind turbine 10 may be included among a collection of similar wind turbines belonging to an off-shore wind farm or wind park that serves as a power generating plant connected by transmission lines with a power grid, such as a three-phase alternating current (AC) power grid.
  • the power grid generally consists of a network of power stations, transmission circuits, and substations coupled by a network of transmission lines that transmit the power to loads in the form of end users and other customers of electrical utilities. Under normal circumstances, the electrical power is supplied from the generator to the power grid as known to a person having ordinary skill in the art.
  • Figs. 2-1 1 illustrate a handling system 30 for a wind turbine component, and more particularly a wind turbine tower 14, in accordance with an embodiment of the invention.
  • the handling system 30 is configured to move and support wind turbine tower 14 on the quay side 32 in preparation for being transported to an off-shore installation site via a seafaring vessel 34 (Fig. 1 1 ).
  • the handling system 30 addresses many of the problems in current systems and methods by coupling the towers to a structure coupled to the quay side in a manner that supports reversible tensile and compressive loading of the towers.
  • the reversible tensile and compressive loading of the towers generally act in the vertical direction.
  • reversible tensile and compressive loading on the towers includes those loads induced by wind forces acting on the towers. More particularly, wind forces acting on the tower will induce a tensile load on the upwind side of the tower and a compressive load on the downwind side of the tower.
  • the coupling of the towers to the structure and the coupling of the structure to the quay side allows both reversible tensile and compressive load to be supported. This is unlike exiting systems and methods which only support the towers on the quay side under compressive loads, since the tower stands only rest on the quay side but are not otherwise physically attached thereto.
  • this structure includes a track.
  • the size of the coupling e.g., the base of the tower stands
  • the amount of space or area on the quay side for accommodating the towers in an upright position may be significantly reduced.
  • the structure may include a movable portion to which the towers may attach to allow the towers to be moved on the quay side.
  • the movable portion includes a trolley
  • the towers may be moved during the loading process so that each tower being lifted and loaded onto the vessel is relatively close to the central axis of the crane.
  • the remaining towers on the quay side may be moved closer to the water edge and closer to the crane. Because the distance between the crane and lifting load has been reduced by this indexing of the towers, a smaller crane may be used to load the towers onto the vessel.
  • the handling system 30 is generally positioned on the quay side 32 adjacent a body of water 36 and defining a water edge 38 at the bounds of the quay side 32.
  • the handling system 30 includes a plurality of supports, which in an exemplary embodiment may include piles 40 substantially positioned within the ground 42 of the quay side 32 for supporting reversible tensile and compressive loads on the handling system 30 during use.
  • Each pile 40 includes a top plate 44 and an elongate stem 46 extending away from the plate 44 and terminating at a beveled or sharpened tip 48.
  • the elongate stem 46 further includes a generally helical thread 50 extending substantially the full length of the elongate stem 46 in one embodiment.
  • the helical thread may be discontinuous and include, for example, a series of helical plates appropriately spaced along the elongate stem 46. Other configurations for the elongate stem 46 and/or thread may also be used.
  • the configuration of the piles 40 serves a number of functions.
  • the piles 40 are configured to distribute the loads acting on the handling system 30 to the ground 42 of the quay side 32 in a generally uniform manner. Providing load distribution reduces the peak loads acting on the quay side 32, therefore reducing the amount of ground work and other support measures required on the quay side 32 for supporting the loads imposed thereon during use.
  • the piles 40 are configured to accommodate tensile loading on the handling system 30 (and thus the towers being handled thereby).
  • the helical thread 50 on the piles 40 resists pulling the piles 40 vertically out of the ground 42, therefore providing a counterforce to tensile loads acting on the handling system 30 as a result of the overturning moment from the towers 14.
  • the helical threads 50 also support compressive loads acting on the handling system 30 as a result of the towers 14.
  • the ability of the piles 40 to accommodate both reversible tensile and compressive loads is, at least in part, what allows the footprint of a tower stand (described below) to be reduced, thereby increasing tower density (i.e., number of towers per unit area of quay side) relative to current values.
  • the particular configuration of the piles 40 described above may provide other benefits, such as being quick to install, not requiring excavation or spoil, not requiring concrete or cure time, having a relatively small footprint, being removable, and being a cost effective option in soft ground applications.
  • the piles 40 may be made of steel or other suitable materials and positioned in the ground 42 of the quay side 32 in a relatively straight forward manner.
  • a land vehicle such as a swing shovel or the like (not shown), may include a rotary attachment for rotating or screwing the piles 40 into the ground 42.
  • the piles 40 may be embedded in the ground 42 such that the top plate 44 is adjacent to the ground 42, but exposed from above the ground 42.
  • the arrangement of the piles 40 on the quay side 32 may depend on the particular configuration of the handling system 30 as well as other factors. Those of ordinary skill in the art will understand how to arrange the piles 40 to adequately support the handling system 30.
  • the handling system 30 includes structure coupled to the quay side 32 in a manner that supports reversible tensile and compressive loads. Accordingly, in an exemplary embodiment, the handling system 30 further includes a track 52 for supporting and guiding the movement of a trolley 54 which, in turn, is configured to be coupled to an upright tower 14 (see Figs. 4, 5, 7 and 1 1 , for example).
  • the track 52 includes a pair of rails 56, 58 arranged in generally parallel relationship to each other, with each rail 56, 58 having a first end 60 adjacent the water edge 38 and a second end (not shown) located some distance away and remote from the water edge 38 (Figs. 4 and 1 1 ).
  • the second end of the rails 56, 58 may be located within a warehouse, assembly facility or other structure, and/or located adjacent an uprighting station for moving sections of a tower 14 from a generally horizontal position to a generally vertical position (not shown) and assembling them into a complete tower 14.
  • the track 52 should have a longitudinal extent such that the handling system 30 may accommodate several towers 14 in an upright position, such as, for example, four or five towers for loading onto the vessel 34. While the track 52 is illustrated as being generally linear, the track 52 may have other configurations and is therefore not limited to the generally linear arrangement as shown herein.
  • each rail 56, 58 includes a plurality of rail sections 56a, 58a serially arranged in an end-to-end relationship to collectively form the rails 56, 58.
  • the rails sections 56a, 58a are generally identical so that the rails 56, 58 may be generally modular such that the rails may be handled and transported by road, rail or vessel in a relatively easy and straight forward manner.
  • each rail section (described in reference to rail section 56a) has a generally I-beam profile including a top plate 62, a bottom plate 64, and a central web 66 extending therebetween.
  • the top plate 62 includes an upper surface 68 and a lower surface 70.
  • the upper surface 68 may be configured to operate as a bearing surface for a base of a tower stand, and at least a portion of the lower surface 70 may be configured to include part of a drive mechanism for moving the trolley 54 along the track 52.
  • the bottom plate 64 includes an upper surface 72 and a lower surface 74.
  • the lower surface 74 may be configured to confront and possibly engage the ground 42 of the quay side 32, and at least a portion of the upper surface 72 may be configured to operate as a bearing surface for the trolley 54, as explained below.
  • the central web 66 defines inner and outer sides of the rails 56, 58.
  • the portion of the rails 56, 58 on the side of the central web 66 which faces the other rail is referred to as the inner side
  • the portion of the rails 56, 58 on the other side of the central web 66 which faces away from the other rail may be referred to as the outer side.
  • the width of the bottom plate 64 is greater than the width of the top plate 62 such that the inner and outer edges of the bottom plate 64 are outboard of the respective inner and outer edges of the top plate 62.
  • the inner edge 76 of the bottom plate 64 includes a lip 78 extending upward toward the top plate 62 so as to bound the bearing surface for the trolley 54.
  • the ends 80 of the rail sections 56a, 58a may include a support plate 82 on their outer side and extending between the top and bottom plates 62, 64.
  • the rail sections 56a, 58a may also include additional support plates (not shown) between the ends 80 of the rail sections.
  • the support plates 82 at the ends 80 of the rail sections 56a, 58a may be used to couple the sections together (described in more detail below).
  • the upper surface 68 of the top plate 62 may include a bevel 84 adjacent the ends 80 of the rails sections 56a, 58a to facilitate an improved transition between adjacent rail sections.
  • the rails 56, 58 are fixedly coupled to the piles 40 positioned in the ground 42 of the quay side 32. This fixed coupling transfers the tensile or compressive loads acting on the track 52 to the piles 40, and ultimately to the ground 42.
  • the bottom plate 64 of the rail sections 56a, 58a includes one or more bores 86 (e.g., two shown, one on the inner and outer sides of the rail sections). These bores 86 may be aligned with threaded bores 88 in the top plate 44 of a pile 40 and secured thereto with a suitable fastener, such as bolts 90. As illustrated in Fig.
  • each top plate 44 (but for possibly the plates at the ends of the track 52) may be coupled to ends 80 of two adjacent rail sections 56a, 58a.
  • the invention is not so limited as additional piles 40 may be coupled to rail sections 56a, 58a at other locations, such as intermediate the ends 80 (not shown). Such additional piles 40 would be determined by the support provided by the ground conditions on the quay side 32 and the number of piles 40 needed to transmit the expected loads into the ground in a safe manner.
  • the handling system 30 in Fig. 4 illustrates a single track 52, it should be recognized that the handling system 30 may include a plurality of tracks (illustrated in phantom in Fig. 4, for example). Thus, there are a host of configurations for the handling system 30 that remain within the scope of the present invention.
  • the handling system 30 includes a trolley 54 movably coupled to the track 52 and further configured to be coupled to a tower 14 oriented in an upright position, as discussed below and illustrated in Fig. 1 1. Although movable along the track 52, the trolley 54 may be further coupled to the track 52 so as to support tensile and
  • the trolley 54 includes an undercarriage or frame 100 having a first or front slider assembly 102 and a second or rear slider assembly 104 coupled to each other by a pair of side support members 106.
  • the front and rear slider assemblies 102, 104 each include a pair of spaced-apart slider blocks 1 10 coupled by an axle or support shaft 1 12.
  • the slider blocks 1 10 have a rectangular box-like configuration with a lower surface 1 14 that slidingly engages the upper surface 72 of the bottom plate 64 of the rails 56, 58 outward of the lip 78, but inward of the inner edge 1 16 of the top plate 62.
  • the slider blocks 1 10 have a height selected so as not to interfere with movement of the trolley 54 along the track 52 (and to slide underneath the tower stand as described below).
  • an upper surface 1 18 of the slider blocks 1 10 may be even with or slightly below the upper surface 68 of the top plate 62.
  • the trolley 54 is configured to slide along the rails 56, 58.
  • the trolley 54 may include wheels or tracks for rolling along the track 52.
  • the trolley 54 may be made from any suitable material for accommodating the loads acting thereon during use. This may include, for example, steel, suitable metals, or other materials capable of handling the loads thereon.
  • the handling system 30 may further include a drive mechanism, generally shown at 126, for moving the trolley 54 along the track 52.
  • the drive mechanism 126 may include a rack-and- pinion arrangement.
  • at least one of the slider blocks 1 10 may include a pinion or driven gear 128 having teeth 130 that mesh with teeth 132 of a rack 134 fixedly coupled to the track 52.
  • the rack 134 may be coupled to the lower surface 70 of the top plate 62 of one or both of the rails 56, 58 and on the inner side thereof. This is but one embodiment and the racks 134 may have other positions in various alternative embodiments.
  • the trolley 54 moves along the track 52 in a first direction (e.g., in a forward direction).
  • the gear 128 is rotated in a second, opposite rotational direction
  • the trolley 54 moves along the track 52 in a second direction opposite the first direction (e.g., the reverse direction).
  • the gear 128 may be coupled to a suitable motor, such as an electric, pneumatic, or hydraulic motor, or other suitable force generator configured to rotate gear 128.
  • the motor or device for driving the gear 128 may be located within the slider block 1 10 or otherwise coupled to the slider block or frame 100 and operatively coupled to the gear 128 for causing rotation thereof.
  • each of the slider blocks 1 10 may include a driven gear 128 that meshes with a rack 134 on each of the rails 56, 58.
  • only the slider blocks 1 10 in the front slider assembly 102 include a driven gear 128.
  • only the slider blocks 1 10 in the rear slider assembly 104 include a driven gear 128.
  • Other arrangements of the gear 128 and rack 134 may also be possible.
  • additional alternative embodiments may include a different drive mechanism.
  • the handling system 30 may include a drive mechanism separate from the trolley 54, but operatively coupled thereto for causing movement of the trolley 54 along the track 52.
  • the handling system 30 may include a winch having a rotatable drum and a cable wound about the drum, the cable having an end coupled to the trolley 54 such that activation of the winch (and thus rotation of the drum), causes movement of the trolley 54 along the track.
  • the drive mechanism 126 provides the coupling of the trolley 54 to the track 52 so as to support the reversible tensile and compressive loads thereon
  • the trolley 54 may have other structures (e.g., tabs, lips, etc.) for interacting with the rails 56, 58 so that the trolley 54 supports reversible tensile and compressive loads.
  • aspects of the present invention should not be limited to the particular drive mechanism and arrangement shown and described herein.
  • the handling system 30 may include a tower stand 140 having a base 142 which may be selectively and fixedly coupled to the trolley 54, and may additionally be selectively and fixedly coupled to the track 52, as will be explained below.
  • the base 142 includes a generally rectangular or square plate having an upper surface 144, a lower surface 146, a front edge 148, a rear edge 150 and side edges 152, 154.
  • the side edges 152, 154 include depending flanges 156, 158, respectively.
  • the base 142 is sized such that the depending flanges 156, 158 are outboard of the top plate 62 of the rails 56, 58 and the lower surface 146 of the base 142 slidingly engages the upper surface 68 of the top plate 62.
  • the upper surface 68 of the top plate may include a lubrication layer or a low-friction bearing material to facilitate sliding movement of the tower stand 140 along the track 52. Additionally, sufficient lubrication or a bearing material may also be supplied between the flanges 156, 158 and the edges of top plate 62. In this way, the loads imposed on the base 142 due to the tower 14 (discussed below) may be transferred to the track 52 and then to the ground 42 via the piles 40.
  • the tower stand 140 includes a tower connector 160 for coupling the stand 140 to the lower end of the tower 14.
  • the tower connector 160 may be configured to couple with the tower flange (not shown) at the lower end of the tower 14, through bolting, for example.
  • the tower connector 160 is configured to fixedly couple the tower 14 to the base 142 of the tower stand 140 in a manner similar to that of current systems and methods.
  • the upright towers 14 are movable along the track 52 so that the towers 14 may be positioned or re-positioned on the quay side in a certain manner.
  • the tower stands 140 and more particularly, the bases 142 thereof, are configured to be selectively and fixedly coupled to the trolley 54 for movement along the track 52.
  • the handling system 30 may include a coupling mechanism 166 for fixedly coupling the tower stand 140 to the trolley 54.
  • the coupling mechanism 166 may include one or more first connecting members 168 on the trolley 54 and one or more second connecting members 170 on the tower stand 140 that cooperate to selectively and fixedly couple the tower stand 140 to the trolley 54.
  • the second connecting member 170 may include a clevis 172 fixedly coupled to the tower stand 140 and having generally aligned bores 174.
  • the tower base 142 may include four clevises 172, two on the front edge 148 and two on the rear edge 150.
  • the clevises 172 may be located adjacent the side edges 152, 154 so as to be generally aligned with the slider blocks 1 10 of the trolley 54 when the trolley 54 is disposed beneath the tower stand 140. This also locates the connection close to the center line of the reaction of the drive mechanism (e.g., the rack and pinion arrangement). Other arrangements of the clevises 172 on the tower stand 140 may also be possible.
  • the first connecting member 168 may include a tang 176 coupled to the trolley 54 and having a bore 178
  • the tangs 176 may be associated with the slider blocks 1 10 and may be movably coupled thereto.
  • the tangs 176 may be operatively coupled to actuators 180, which are, in turn, coupled to the slider blocks 1 10.
  • the actuators 180 may be configured to move the tangs 176 between a first extended position (Fig. 9) wherein the tangs 176 are configured to be coupled to the clevises 172 on the tower base 142, and a second retracted position (not shown) wherein the tangs 176 are out of the way and allow the trolley 54 to be moved underneath a tower stand 140, for example, without the tangs 176 contacting or otherwise interfering with the tower stand 140.
  • a pin 182 or other suitable fastener may be inserted therethrough to fixedly couple the tower stand 140 to the trolley 54. Accordingly, movement of the trolley 54 provides a corresponding movement of the tower stand 140 and the tower 14 coupled thereto. Of course, to uncouple the tower stand 140 from the trolley 54, the pins 182 may be removed from the bores 174, 178. The tangs 176 may additionally be moved to their retracted position so as not to interfere with the tower stand 140.
  • the coupling mechanism described above is but one exemplary embodiment for fixedly coupling the tower stand 140 to the trolley 54. It should be recognized that other coupling mechanisms may be used to fixedly couple the tower stand 140 to the trolley 54 and remain within the scope of the invention.
  • a method of using the handling system 30 in accordance with an embodiment of the invention will now be described in further detail.
  • This arrangement typically includes a plurality of towers serially arranged to form a tower line extending away from the water edge 38 (Fig. 1 1 ).
  • the towers 14 may be formed from a plurality of tower sections and those sections may be assembled quay side or near quay side to form the towers 14.
  • the lower most end of the tower 14 may be fixedly coupled to the tower stand 140 to form a tower/tower stand assembly.
  • the tower/tower stand assembly 14 may then be operatively coupled to an assembly crane, winch or other lifting apparatus (not shown) so as to be in a generally vertical orientation with the tower stand 140 at the lower most end of the assembly.
  • the crane may then move the tower/tower stand assembly adjacent the second end of the track 52, which may include a trolley 54 movably coupled thereto as described above. As illustrated in Fig. 9, the assembly may then be lowered so that the base 142 of the tower stand 140 is generally positioned over the trolley 54 such that the bores 174, 178 of the clevises 172 and tangs 176 (in an extended position) are aligned. The pins 182 may then be inserted therethrough to fixedly couple the tower stand 140 to the trolley 54. As illustrated in Figs.
  • the lower surface 146 of the base 142 engages the upper surface 68 of the top plate 62 of the rails 56, 58 such that the upper surface 68 operates as a bearing surface for supporting a substantial portion, if not all, of the weight of the tower 14. As noted above, this load is distributed through the rails 56, 58, to the piles 40, and ultimately to the ground 42 of the quay side 32.
  • the tower stand 140 having a tower 14 coupled thereto, is fixedly coupled to the trolley 54
  • the tower 14 is effectively or indirectly coupled to the quay side 32 in a manner that supports reversible tensile and compressive loading of the tower 14, such as from wind forces or the like.
  • This ability to support reversible tensile and compressive loading on the tower 14 is due, at least in part, by the manner in which the trolley 54 is coupled to the track 52 and the manner in which the track 52 is coupled to the quay side 32.
  • the tower stand 140 may be fixedly coupled to the track 52 (such as described below and without being coupled to a trolley 54) and the tower 14 subsequently assembled on the tower stand 140 using the assembly crane adjacent the second end of the track 52.
  • the trolley 54 may then be coupled to the tower stand 140 so as to move the tower 14 along the track 52.
  • the trolley 54 may already be coupled to the tower stand 140 when the tower 14 is being assembled thereon. This may eliminate the need to provide a mechanism for securing the tower stand 140 to the track 52 independent of the trolley 54 at least at the second end of the track 52.
  • the trolley 54 may then be actuated so as to move along the track 52 from the second end and toward the first end 60 of the track 52.
  • the motor or other actuators (not shown) on the trolley 54 may be activated to rotate the drive gears 128, which, in turn, interact with the rack 134 on the rails 56, 58 to move the trolley 54 along the track 52.
  • the base 142 of the tower stand 140 slides along the upper surface 68 of the rails 56, 58.
  • the slider blocks 1 10 of the trolley 54 may slide along the upper surface 72 of the bottom plate 64 of the rails 56, 58, as illustrated in Fig. 8, for example.
  • the trolley 54 may be moved along the track 52 until the tower 14 is adjacent the water edge 38 at the first end 60 of the track 52. At this point and in one embodiment, the trolley 54 may be uncoupled from the tower stand 140. To this end, the pins 182 may be removed from the bores 174, 178 of the clevises 172 and tangs 176, and the tangs 176 moved to their retracted position so as to avoid interference with movement of the trolley 54. However, for reasons described below, before the tower stand 140 and the trolley 54 are uncoupled, the tower stand 140 may be fixedly coupled to the track 52.
  • the tower stand 140 While the tower stand 140 is coupled to the trolley 54, the loads presented by the tower 14, including both the weight of the tower and the wind loads acting on the tower, are ultimately distributed and transferred to the ground 42 of the quay side 32. Additionally, and in accordance with one aspect of the invention, the fixed coupling of the tower stand 140 to the trolley 54, the particular coupling of the trolley 54 to the track 52, and the particular coupling of the track 52 to the quay side 32 allows the tower 14 to be supported under both reversible tensile and compressive loading.
  • the tower stand 140 may be configured to be selectively and fixedly coupled to the track 52. In an exemplary embodiment, this coupling to the track 52 is achieved before the tower stand 140 is uncoupled from the trolley 54. In this way, and because the track 52 (e.g., rails 56, 58) is fixedly coupled to the ground 42 via the piles 40, the fixed coupling of the tower stand 140 to the track 52 and the particular coupling of the track 52 to the quay side 32 allows the tower 14, once again, to be effectively or indirectly coupled to the quay side 32 in a manner that supports reversible tensile and compressive loading of the tower 14.
  • the track 52 e.g., rails 56, 58
  • the handling system 30 may include a locking mechanism 188.
  • the locking mechanism 188 may include one or more locking pins 190 coupled to one or both of the rails 56, 58 at certain locations. As illustrated in Figs. 8 and 10, the locking pins 190 may be coupled to the outer side of the rails 56, 58 and adjacent the intersection of the central web 66 and the top plate 62. Other positions, however, may be possible.
  • the locking pins 190 are configured to be movable between an extended state (Fig. 8) and a retracted state (Fig. 10) such as by being coupled to suitable actuators.
  • the locking pins 190 are configured to be received within pin receptacles in the base 142 of the tower stand 140.
  • the depending flanges 156, 158 of the base 142 may include a plurality of bores 192 along the length thereof configured to receive a locking pin 190 therein.
  • a plurality of locking pins 190 may be configured to engage bores 192 of a tower stand 140 when it is desired to couple the tower stand 140 to the track 52. In the retracted position, the locking pins 190 are configured to be out of the way of the tower stand 140, and the tower stand 140 is free to move along the track 52 without interference from the pins 190.
  • the locking pins 190 on the track 52 may be actuated so as to engage with the bores 192 in the tower stand 140 to fixedly couple the tower stand 140, and thus the tower 14, to the track 52.
  • the trolley 54 With the first tower positioned adjacent the water edge 38, the trolley 54 may then be moved along the track 52 back toward the second end of the track 52 and the process, as described above, repeated so that a plurality of towers 14 are serially arranged adjacent the water edge 38 for loading onto the vessel 34.
  • the number of towers 14 lined up and ready for loading may depend on various parameters, including the number of wind turbines 10 to be installed on the site, the size of the vessel 34, or other factors. In an exemplary embodiment, four or five towers 14 may be lined up on the track 52 adjacent the water edge 38.
  • the method described above is merely one exemplary method for providing an arrangement of towers 14 for loading onto the vessel 34.
  • the method described above included one trolley 54 on the track 52 for moving the towers 14 toward the first end 60 of the track 52.
  • the method may employ additional trolleys 54 for moving the towers 14.
  • the handling system 30 as described above addresses at least some of the deficiencies of existing systems for handling wind turbine towers on the quay side.
  • the handling system 30 provides a fixed coupling of the tower 14 to the ground 42 of the quay side 32 in a manner that supports both reversible tensile and compressive loading of the tower.
  • towers are supported on the quay side in a manner that only supports compressive loads.
  • the tower stands 140 may be reduced in size as compared to current systems. This, in turn, allows the towers 14 on the quay side 32 to be packed together more tightly.
  • the tower density is estimated to be about 0.0025 towers/m 2 .
  • the tower density using the handling system 30 is estimated to be about 0.0156 towers/m 2 , which represents over a 600% increase in the tower density. Accordingly, the amount of space on the quay side 32 taken up by the towers 14 has significantly improved as a result of the handling system 30.
  • the handling system 30 also addresses other shortcomings of existing systems and methods.
  • a crane 200 or other lifting apparatus on or adjacent the vessel 34 may be coupled to the first tower 14a in the line of plurality of towers.
  • the locking mechanism 188 may be actuated to move the locking pins 190 to their retracted position and disengage the locking pins 190 from the bores 192 in the tower stand 140a.
  • the crane 200 may then lift the tower 14a and its associated tower stand 140a off the track 52 and onto the vessel 34.
  • the tower stand 140a may be used to couple the tower 14a to the vessel 34. The manner in which the tower 14a is coupled to the vessel 34 is discussed below.
  • the trolley 54 may be coupled to the second tower 14b in the plurality of towers, such as in the manner described above, so as to move the second tower 14b forward along the track 52 toward the first end 60 and closer to the water edge 38.
  • the tower stand 140b may be locked to the track 52 in the manner described above and the trolley 54 may be uncoupled from the tower stand 140b of the second tower 14b.
  • the process of moving the second tower 14b to the first end 60 of the track 52 may be performed as the crane 200 is loading the first tower 14a.
  • the crane 200 may then be coupled to the second tower 14b.
  • the locking mechanism 188 may be actuated to move the locking pins 190 to their retracted position and disengage the locking pins 190 from the bores 192 in the second tower stand 140b.
  • the crane 200 may then lift the second tower 14b and its associated tower stand 140b off the track 52 and onto the vessel 34. This process may then be repeated until all of the towers 14 in the arrangement of plurality of towers have been moved forward to the first end 60 of the track 52 and loaded onto the vessel 34.
  • the lifting performed by the crane 200 so as to load the towers 14 onto the vessel 34 is done in relatively close proximity to the crane axis 204, therefore minimizing the size of crane required to load the towers 14 onto the vessel 34.
  • the handling system 30 as described herein may allow existing cranes on vessels or on the quay side adjacent the vessels to be used to load the larger and heavier components. This, of course, will obviate the costs associated with purchasing, installing, and operating larger and higher capacity cranes on the vessels or quay side capable of lifting the larger components.
  • various components of the handling system 30 may be used to improve the apparatus and method of transporting the towers 14 on the vessel 34.
  • the tower stand 140 is removed from the track 52 when the towers 14 are loaded onto the vessel 34 (see Fig. 1 1 ).
  • these tower stands 140 may be used in an advantageous manner on the vessel 34.
  • the vessel 34 may include a plurality of frames 206 (one shown) configured to be fixedly coupled to the deck 208 of the vessel 34, such as through welding, bolting, or the use of other fasteners or techniques.
  • the frames 206 may include a latticework of beams 210.
  • the frames 206 may be fixedly coupled to the vessel 34 in a manner that supports reversible tensile and compressive loading of the frame 206 due to wind loads and the motion of the vessel 34 while in transit to the installation site.
  • the frames 206 may be sized so as to fit within the bounds of the base 142 of the tower stands 140 such that the lower surface 146 of the base 142 engages an upper surface 212 of the frame 206.
  • Frames 206 may include a locking mechanism for selectively and fixedly coupling the tower stands 140 to the frames 206.
  • the frames 206 include one or more locking pins 214 coupled thereto which are configured to be movable between an extended state and a retracted state. In the extended state, the locking pins 214 are configured to be received within the bores 192 in the depending flanges 156, 158 of the base 142 of the tower stand 140.
  • the tower stand 140 When one or more of the locking pins 214 engage a bore 192 on the tower stand 140, the tower stand 140 is fixedly coupled to the frame 206, which, in turn, is fixedly coupled to the deck 208 of the vessel 34. When so coupled, the tower 14 is supported on the vessel 34 under both reversible tensile and compression loading of the towers. With the towers 14 so secured to the vessel 34, the towers 14 may be transported to the installation site of the wind turbine. In the retracted position, the locking pins 214 are configured to be out of the way of the tower stand 140 such that the tower stand 140 may be moved downwardly onto and over the frame 206 (or removed therefrom).
  • the tower stands 140 used in the handling system 30 on the quay side 32 may also be used to support the towers 14 on the vessel 34.
  • the invention is not so limited.
  • an auxiliary lifting device such as a relatively small land-based mobile crane or the like, may remove the tower stand 140 from the track 52 and allow the next tower 14 to be moved forward. In this way, the method of indexing the towers 14 forward for loading onto the vessel 34 may still be executed even though the tower stands 140 are not being used to couple the towers 14 to the vessel 34.

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

Abstract

La présente invention concerne un appareil destiné à la manipulation de pylônes d'éolienne comprenant une structure accouplée au bord d'un quai de façon à supporter les charges de traction et de compression réversibles exercées par la structure, et un support de pylône conçu pour être accouplé à un pylône d'éolienne et en outre conçu pour être accouplé à la structure. Quand le support de pylône, auquel a été accouplé un pylône, est accouplé à la structure, le pylône est accouplé au bord du quai de façon à supporter les charges de traction et de compression réversibles exercées par le pylône. L'invention concerne également un procédé de manipulation de pylônes d'éolienne et comprend l'accouplement d'un pylône à la structure et le déplacement du pylône sur le bord d'un quai, le pylône étant accouplé à la structure de façon à supporter les charges de traction et de compression réversibles exercées par le pylône.
PCT/DK2014/050046 2013-03-13 2014-03-05 Procédé et appareil de manipulation d'un pylône d'éolienne pour assemblage et stockage au bord d'un quai, et transport vers un site d'installation en mer WO2014139532A1 (fr)

Applications Claiming Priority (4)

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US201361778918P 2013-03-13 2013-03-13
US61/778,918 2013-03-13
DKPA201370232 2013-04-29
DKPA201370232 2013-04-29

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105781903A (zh) * 2014-12-26 2016-07-20 财团法人船舶暨海洋产业研发中心 塔架旋转系固系统及其运作方法
CN105781902A (zh) * 2014-12-26 2016-07-20 财团法人船舶暨海洋产业研发中心 塔架系固系统及其运作方法
WO2020001721A1 (fr) * 2018-06-27 2020-01-02 Mhi Vestas Offshore Wind A/S Système de pré-assemblage et procédé associé pour le positionnement optimal de structures de tour

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009111284A2 (fr) * 2008-02-29 2009-09-11 Deep Water Wind, Llc Procédé et appareil pour transporter et monter des générateurs éoliens en mer
WO2012036352A1 (fr) * 2010-09-14 2012-03-22 대우조선해양 주식회사 Dispositif de déplacement d'ensemble générateur d'énergie éolienne et procédé de chargement/déchargement d'ensemble générateur d'énergie éolienne utilisant celui-ci

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009111284A2 (fr) * 2008-02-29 2009-09-11 Deep Water Wind, Llc Procédé et appareil pour transporter et monter des générateurs éoliens en mer
WO2012036352A1 (fr) * 2010-09-14 2012-03-22 대우조선해양 주식회사 Dispositif de déplacement d'ensemble générateur d'énergie éolienne et procédé de chargement/déchargement d'ensemble générateur d'énergie éolienne utilisant celui-ci

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105781903A (zh) * 2014-12-26 2016-07-20 财团法人船舶暨海洋产业研发中心 塔架旋转系固系统及其运作方法
CN105781902A (zh) * 2014-12-26 2016-07-20 财团法人船舶暨海洋产业研发中心 塔架系固系统及其运作方法
WO2020001721A1 (fr) * 2018-06-27 2020-01-02 Mhi Vestas Offshore Wind A/S Système de pré-assemblage et procédé associé pour le positionnement optimal de structures de tour
US11486364B2 (en) 2018-06-27 2022-11-01 Vestas Wind Systems A/S Preassembly system and method for optimal positioning of tower structures

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