US20140314576A1 - Wind turbine blade holding arrangement - Google Patents

Wind turbine blade holding arrangement Download PDF

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Publication number
US20140314576A1
US20140314576A1 US14/171,956 US201414171956A US2014314576A1 US 20140314576 A1 US20140314576 A1 US 20140314576A1 US 201414171956 A US201414171956 A US 201414171956A US 2014314576 A1 US2014314576 A1 US 2014314576A1
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United States
Prior art keywords
blade
frame
root
holding arrangement
tip
Prior art date
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Abandoned
Application number
US14/171,956
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English (en)
Inventor
Kim Lieberknecht
Aage Mastrup
Kenneth Helligsoe Svinth
Maja Rose Wieland
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Siemens AG
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Siemens AG
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Application filed by Siemens AG filed Critical Siemens AG
Assigned to Thomas A/S reassignment Thomas A/S ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Wieland, Maja Rose, Lieberknecht, Kim
Assigned to SIEMENS WIND POWER A/S reassignment SIEMENS WIND POWER A/S ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Svinth, Kenneth Helligsoe, MASTRUP, AAGE
Assigned to SIEMENS WIND POWER A/S reassignment SIEMENS WIND POWER A/S ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Thomas A/S
Assigned to SIEMENS AKTIENGESELLSCHAFT reassignment SIEMENS AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SIEMENS WIND POWER A/S
Publication of US20140314576A1 publication Critical patent/US20140314576A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/32—Locking, e.g. by final locking blades or keys
    • 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
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/40—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying long loads, e.g. with separate wheeled load supporting elements
    • 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
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making
    • Y10T29/49336—Blade making

Definitions

  • the invention describes a wind turbine blade holding arrangement, and a method of handling a number of wind turbine blades.
  • Rotor blades for wind turbines can be very long, easily reaching lengths of 100 meters or more for the larger wind turbines.
  • the shape of a wind turbine rotor blade is quite complex, comprising an airfoil portion and also a circular root end portion for mounting to the hub of the wind turbine.
  • the airfoil portion usually tapers to a fairly thin tip. It is important to transport such blades without damage from a factory site to an installation site, since any surface damage detracts from the blade's aerodynamic performance and can result in costly repairs. Measures to protect the blades during handling and transport contribute significantly to the overall cost of a wind turbine.
  • Another cost factor is given by the need to use an initial type of support apparatus for storing blades after their manufacture (for example racks or shelves at the manufacturers site); a further type of support apparatus for marine or road transport (for example cradles and/or frames in a transport vessel); and yet another type of support apparatus for interim storage before mounting to the hub of a wind turbine (for example shelves at an owner site).
  • a considerable cost factor is the transfer of blades from one support apparatus to another, since the blades must be dismounted from one apparatus and moved or lifted—taking due care not to damage the blade—to the next apparatus. The risk of blade damage increases with every transfer step.
  • the wind turbine blade holding arrangement comprises a root frame for securing to a root portion of a blade; an airfoil clamp for arranging about an airfoil portion of the blade; and an airfoil frame for supporting the airfoil clamp; wherein the root frame and tip clamp are realized for use in a first blade orientation in a first storage and transport stage of the blade and also for use in a second blade orientation in a second storage and transport stage of the blade, wherein the first and second blade orientations are distinct from each other.
  • the term “storage and transport stage” is to be understood to mean any stage between the point in time at which the blade manufacture and finishing steps are complete, to the point in time at which the blade is ready to be installed on a wind turbine.
  • a rotor blade manufacturing site can be remote from the wind turbine installation site.
  • long distances by road, rail and ship must be covered between the manufacturer and the onshore or offshore installation site. Therefore, it may be necessary to store a blade for some time before it can be shipped (i.e. transported from one location to another), then it must be loaded for shipping.
  • During transport it may be necessary to unload and load the blade one or more times, for example from a road transport vehicle to a transport vessel.
  • An advantage of the wind turbine blade holding is that it can be used throughout all storage and transport stages of a blade, from the time the blade manufacture and finishing steps are complete, to the time the blade is installed on a wind turbine, and can be adapted to different blade orientation requirements.
  • Various elements of the holding arrangement remain secured to the blade throughout, even for distinctly different blade orientations or positions, until the blade is ready to be mounted to the hub of the wind turbine.
  • the single holding arrangement can be used throughout.
  • the holding arrangement offers a considerable saving in cost, since elements of the holding arrangement remain attached to the blade throughout its entire storage and transport phase, and since all storage and transport steps make use of the elements of the holding arrangement. Furthermore, since there is no need to transfer the blade between different types of holding equipment, the reduction in the number of handling steps means that there is also less risk of damage to the blades. This also contributes to a reduction in overall wind turbine cost.
  • the method of handling a number of wind turbine blades comprises the steps of securing a root frame to a root end of a blade; arranging a tip clamp about an airfoil portion of the blade; and mounting the tip clamp onto a tip frame; which method comprises arranging the root frame in a first blade orientation in a first storage and transport stage of the blade; and arranging the root frame in a second blade orientation in a second storage and transport stage of the blade; wherein the first and second blade orientations are spatially significantly distinct or different from each other.
  • An advantage of the handling method is that the handling steps in the storage and transport stages between manufacture and installation of the blade are reduced to a favorable minimum, while ensuring at the same time that the blade is always safely and securely held.
  • the handling or holding arrangement can be adapted to securely hold any type or shape of blade during transport and storage.
  • a wind turbine blade comprises an essentially circular root portion and an airfoil portion, with a shoulder or transition region between these.
  • the root frame can easily be realized to fit about a root portion that has a non-circular shape, for example an elliptical shape or other complex shape.
  • first and second blade orientations may be essentially at right angles to each other.
  • first and second blade orientations may differ by any suitable angle. In the following, without restricting the invention in any way, it may be assumed for simplicity that the first and second blade orientations are at right angles to each other.
  • the airfoil clamp is arranged about the flatter airfoil section of the blade at point someway beyond the blade middle and towards the tip, so that the weight of the blade is optimally supported at two points (by the root frame at one point and by the airfoil frame and airfoil clamp at another point).
  • the airfoil clamp may also be referred to as a “tip clamp”
  • the airfoil frame may be referred to as a “tip frame”.
  • the holding arrangement also comprises a root end foot realized to support the root portion of the blade.
  • This root end foot is shaped to match a portion of the root end, so that it can be placed between the root end and the ground. The blade can then rest securely on the root end foot. In such a “parking” position or vertical blade orientation, the blade is arranged so that its shoulder and airfoil portion face vertically upward, which is a stable position for the blade and also occupies less space.
  • Such a root end foot comprises some means with which it can be secured to the root end, so that it remains in place even if the blade is lifted and/or turned from its “parked” position.
  • pinbolts are usually threaded into bushings embedded in the root region of the blade and left to protrude to a certain extent. These pinbolts can then be inserted into corresponding bushings in a circular hub connector, for example to a pitch bearing. Therefore, in a further embodiment of the invention, the root end foot comprises bolt cover portions realised for mounting over already installed and protruding pinbolts of the root end of the blade.
  • a root end foot may comprise two sections with protruding tubular bolt covers that fit over a number of neighboring pinbolts. This can be sufficient to ensure that the root end foot stays in place.
  • the root end foot may be screwed onto the root end.
  • the root end foot can be made of some suitable material such as steel, and can be made quite economically, for example it can be cast in one piece.
  • the root frame can be secured in any suitable way to the root end of the blade.
  • the root frame is secured to the root end so that the root frame and root end can be handled as a single entity. Therefore, in an embodiment of the invention, the root frame comprises a number of root end brackets realized for securing the root frame to the root end of the blade, using a number of “empty” pinbolt bushings about a mounting face of the root end.
  • the embodiment of the invention makes use of the fact that pinbolt bushings of the blade root end provide a very stable connecting means for an alternative component, in this case the root frame. Connecting brackets are attached to the root frame, with openings that coincide with the positions of several empty pinbolt bushings. Suitable fasteners can be inserted through these openings and into the empty pinbolt bushings, and subsequently tightened.
  • the root end foot could stay mounted to the blade so that it can be used in both a first “parking” stage, during which the weight of the root end is carried by the root end foot, and a final “parking” stage of the blade during which the weight of the root end is carried by the root frame. Therefore, in a further embodiment of the invention, the root frame is realized to accommodate the root end foot, i.e. the root frame can be constructed to fit about the root end foot. Equally, the root end foot can be shaped to fit “into” the root frame.
  • the root frame and blade can be turned from a first position (in which the root end was resting on the root end foot) to a second position (in which the root end is held only by the root frame), without having to remove the root end foot, since this does not protrude beyond the root frame.
  • This can be used again later, for example when the root frame is removed, and the weight of the blade can once again be carried at the root end by the root end foot.
  • a frame is realized to be stacked on a further frame of the same type. For instance, a root frame can be arranged on another root frame, so that a root frame stack can be built. Similarly, a tip frame can be arranged on another tip frame, so that a tip frame stack can be built.
  • the tip clamp and root frame comprise a number of connecting means for connecting to a lifting apparatus, for example for connecting to a cable or rope of a crane that is used to lift the blade and its tip clamp and root frame from one position to another.
  • a lifting apparatus for example for connecting to a cable or rope of a crane that is used to lift the blade and its tip clamp and root frame from one position to another.
  • the cables can be manipulated to turn the root frame and tip clamp, for example through one quarter turn.
  • a winch could be used to achieve the desired degree of rotation.
  • the root frame and tip clamp are in a “horizontal” position or blade orientation, since the airfoil and shoulder portions of the blade are essentially lying “flat”. The horizontal arrangement can then be lowered into place on a waiting tip frame, and the tip clamp can be dropped into the tip frame and secured to this.
  • the blade with tip clamp, tip frame and root frame can be lifted again and moved to a new location.
  • the entire arrangement can be lifted as it is and lowered onto a flatbed lorry or railcar, ready for transport to a new location.
  • the entire arrangement can be lifted as it is and lowered onto a stack of previously assembled blade and frame arrangements to form a “blade stack”, in which all tip frames are arranged in a vertical “tip frame stack”, and all root frames are arranged in a vertical “root frame stack”.
  • a tip frame or root frame comprises a first interface portion for connecting with a second interface portion of a corresponding frame, so that the frames can be connected to each other.
  • the uprights of a frame can be shaped so that the top corners are tapered or pointed to fit into correspondingly formed bottom corners of the next frame in the stack.
  • a locking device such as a locking pin or clamp can be implemented to lock the vertically aligned uprights of the stacked frames.
  • the holding arrangement comprises one or more mounting “feet” or mounting brackets realized for mounting to a surface of a transport means and/or a storage facility.
  • Such feet or brackets can be secured to the ground, and spaced so that the uprights of a frame fit over the brackets.
  • a mounting foot can be welded in place, or can be removably secured using a suitable locking device such as a twist-lock mechanism.
  • the mounting feet and the frames are realized to be connected together in a secure manner, for example by using a locking pin passed through a frame upright and a barrel or cylinder of the mounting foot.
  • each frame can be used in any position in the stack, for example each tip frame can be used as the lowest tip frame secured to mounting feet on the ground, or as any intermediate tip frame that is mounted onto another lower tip frame, etc. No distinction need be made, i.e. any frame can be used at any position in its stack.
  • the holding arrangement comprises one or more connecting struts for connecting adjacent frames, for example for connecting adjacent root frames. In this way, additional lateral stability can be ensured, especially during sea transport.
  • the compact-realization of the root frames and tip frames means that blades can be stacked in relatively narrow blade stacks with a favorable economy of space. Furthermore, since the frames need not extend to any significant extent beyond the contour or profile of a blade, it is possible to arrange vertical blade stacks in an interleaved manner in a close and compact array.
  • the stacks can be formed such that the airfoils of one stack of blades can face toward the root portions of a neighboring parallel blade stack.
  • Blade stacks can be arranged progressively in this alternating manner to give an interleaved array with two opposite arrangements of root frames, and two arrangements of tip frames in between, so that, effectively, twice as many tip frames are accommodated in the space occupied by one root frame “array”.
  • the root frame stacks can be connected using struts as mentioned above. To obtain an optimal packing density, the combined width of a root frame and a connecting strut can correspond essentially to the width of two tip frames.
  • FIG. 1 shows a blade in a first storage stage, supported by a root end foot and a tip clamp of a holding arrangement according to an embodiment of the invention
  • FIG. 2 shows the blade of FIG. 1 , supported also by a root frame
  • FIG. 3 shows the blade of FIGS. 1 and 2 during a lifting step
  • FIG. 4 shows a tip clamp and a tip frame of a holding arrangement according to an embodiment of the invention
  • FIG. 5 shows a detail of frame of a holding arrangement according to an embodiment of the invention
  • FIG. 6 shows a blade during a road transport stage, supported by a holding arrangement according to an embodiment of the invention
  • FIG. 7 shows a vertical stack of blades supported by a holding arrangement according to an embodiment of the invention
  • FIG. 8 shows an array of the vertical stacks of FIG. 7 ;
  • FIG. 9 shows the array of FIG. 8 arranged on a container vessel for sea transport.
  • FIG. 1 shows a blade 6 in a first storage stage, supported by a root end foot 4 and a tip clamp 3 of a holding arrangement according to an embodiment.
  • the root end 61 is being supported by the root end foot 4
  • the blade's airfoil portion 62 is being supported in an airfoil clamp 3 or “tip clamp” 3 .
  • This position or blade orientation may be required for a while between the manufacturing and transport phases.
  • the root end foot 4 is secured to the root end 61 using several of the already mounted bolts 610 protruding from the root end 61 , which will later be used to mount the blade 6 to the hub of a wind turbine.
  • the root end foot 4 includes a planar portion with a number of rigid protruding tubes that are arranged to coincide with the positions of certain pinbolts 610 .
  • the planar portion of the root end foot 4 lies against a planar surface of the root end.
  • the root end foot 4 is compact and economical, since it does not need to extend around the entire root portion 61 . Even so, the sturdy shape of the root end foot 4 means that it can hold the blade 6 securely.
  • the root end foot 4 has relatively wide flat portions shaped to rest firmly on a horizontal surface such as the ground, or the interior of a lorry, container, railcar etc., as will be shown later.
  • the tip clamp 3 or airfoil clamp 3 comprises two hinged parts or “jaws” 31 that are shaped to conform to the airfoil shape of the blade 6 at a distance along its length, for example at a point between the blade middle and the blade tip.
  • the shape of the tip clamp 3 ensures that the blade 6 can be held securely without being scratched or dented, and the blade 6 is further protected by a number of pads 32 .
  • the tip clamp 3 is in turn mounted to a foot 30 , which is realized to rest firmly on a horizontal surface such as the ground, or the interior of a lorry, container, railcar, etc.
  • the shoulder portion 63 of the blade points upward in a “vertical” blade orientation V, and the remainder of the airfoil 61 is also essentially vertical.
  • the tip clamp 3 and the root end foot 4 are mounted after manufacture of the blade 6 has been completed, and remain on the blade 6 during all subsequent transport and storage stages, as will become clear in the following.
  • the tip clamp 3 is in a “vertical” position V or blade orientation, pointing upwards.
  • FIG. 2 shows the blade 6 of FIG. 1 , supported also by a root frame 1 .
  • the blade shoulder 63 is pointing upwards, and the root frame 1 is in the corresponding “vertical” position as indicated by the “V” in the diagram.
  • the root end foot 4 and root frame 1 are designed so that the root end frame 1 can be fitted over the root end foot 4 .
  • the root end frame 1 is shaped to fit about the root end 61 of the blade 6 , and comprises root end brackets 10 that fit into certain spaces along the bolt ring of the root end 61 in which no pinbolts have been inserted.
  • the root end frame 1 is secured to the root end 61 by inserting fasteners through the brackets 10 and into empty pinbolt bushings.
  • the root frame 1 can be placed over mounting feet 5 , which can have a wider base to provide support.
  • the mounting feet 5 can be permanently or temporarily secured to a surface such as a storage facility floor, a truck interior, a storage vessel interior, etc., as will be explained below.
  • the root frame 1 can be secured to the mounting feet 5 using a suitable connecting means such as a locking pin 50 .
  • Both root frame 1 and tip clamp 3 have a number of lifting eyelets 13 , 33 , to which lifting tackle such as a crane cable can be connected.
  • FIG. 3 shows the blade 6 of FIGS. 1 and 2 during a lifting step.
  • cables 9 are connected to the lifting eyelets 13 , 33 of the tip clamp 3 and root frame 1 .
  • the cables 9 can be adjusted to turn the blade 6 one quarter turn, so that the blade shoulder 63 lies more or less flat.
  • the root frame 1 since it is secured to the root portion 61 of the blade 6 , has also been rotated, and is now in the corresponding “horizontal” position as indicated by the “H” in the diagram.
  • the blade 6 is lowered into place over a tip frame 2 which has been previously arranged in place.
  • FIG. 4 shows a tip clamp 3 also in its “horizontal” position on a tip frame 2 of the holding arrangement.
  • the diagram shows that the tip clamp 3 and the clamp foot 30 are dimensioned to fit within the upper portion of the tip frame 2 .
  • the tip frame 2 also has various lifting eyelets 23 for a later transport step.
  • the tip frame 2 is also realized to fit onto mounting feet 5 .
  • a mounting foot 5 can have a tapered top part, shaped to facilitate ease of placement of a tip frame 2 .
  • the uprights of a tip frame 2 can have tapered points so that another tip frame 2 can easily be stacked onto it.
  • FIG. 5 shows a detail of a root frame 1 , showing how a corner of a frame 1 , 2 can fit over a mounting foot 5 .
  • Suitable bores in the side portions of the root frame 1 or tip frame 2 allow a locking pin 50 to be passed through a corresponding barrel or cylinder of the mounting foot 5 .
  • FIG. 6 shows a blade 6 during a road transport stage, supported by a holding arrangement 1 , 2 , 3 according to an embodiment.
  • the blade 6 can have been lifted into place onto a lorry 7 with the root frame 1 and tip frame 2 (and clamp 3 ) already in place, using a crane, and cables connected to the lifting eyelets.
  • the diagram shows that the root frame 1 and tip frame 2 are dimensioned to fit onto a flatbed of the lorry 7 .
  • Mounting feet 5 are welded or otherwise secured to the flatbed, and connected to the frames 1 , 2 , ensure that the blade is securely held during the road transport stage.
  • this arrangement is equally applicable to rail transport.
  • FIG. 7 shows a vertical stack of blades supported by a holding arrangement 1 , 2 , 3 according to an embodiment.
  • four blades 6 are each held in a root frame 1 , and a tip frame 2 with tip clamp 3 , and the frames 1 , 2 are stacked one above the other.
  • the uprights of the frames 1 , 2 can be secured to each other using a locking arrangement, for example locking pins such as those shown in FIG. 5 .
  • the lowest root frame 1 and tip frame 2 can be secured to the ground using mounting feet 5 and locking pins, also as shown in FIG. 5 .
  • FIG. 8 shows such an array 300 comprising two interleaved arrays of twelve blades, stacked in three vertical four-blade stacks 100 , 200 as shown in FIG. 7 .
  • the two twelve-blade arrays are arranged so that the twelve blade tips of one array point toward the root ends of the other array.
  • the uppermost root frames 1 can be secured by struts 101 connected between the uprights of adjacent root frames 1 .
  • FIG. 9 shows the array 300 of FIG. 8 arranged on a container vessel 8 for sea transport, for example to an offshore wind park installation.
  • the diagram illustrates that a relatively large number of blades 6 can be accommodated on the vessel 8 .
  • Such a vessel 8 is usually dimensioned to carry a specific number of standard containers.
  • a three-dimensional array of standard containers usually fills the rectangular volume of the loading space more or less exactly, i.e. with little or no “room to spare” at the sides.
  • the diagram shows that the 24-blade interleaved array fills such a rectangular volume. This is made possible by dimensioning the root frames 1 , tip frames 2 and connecting struts 101 appropriately.
  • the combined width of three root frames 1 and two struts 101 is chosen to correspond to an integer multiple of a container width.
  • the combined width of six tip frames 2 corresponds to the same container width integer multiple.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Transportation (AREA)
  • Wind Motors (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
US14/171,956 2013-04-23 2014-02-04 Wind turbine blade holding arrangement Abandoned US20140314576A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP13164914.7 2013-04-23
EP13164914.7A EP2796709B1 (de) 2013-04-23 2013-04-23 Windturbinenschaufelhalteanordnung

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US (1) US20140314576A1 (de)
EP (1) EP2796709B1 (de)
CN (2) CN104118660A (de)
BR (1) BR102014009598A2 (de)
CA (1) CA2849214C (de)
DK (1) DK2796709T3 (de)

Cited By (17)

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US20150198140A1 (en) * 2014-01-16 2015-07-16 Bnsf Logistics, Llc Methods for Transporting Wind Turbine Blades
US20150300314A1 (en) * 2012-10-26 2015-10-22 Lm Wp Patent Holding A/S Method and system for transporting and storing at least two wind turbine blades
WO2016183416A1 (en) * 2015-05-14 2016-11-17 Bnsf Logistics, Llc Systems and methods for transporting wind turbine blades
KR20170101951A (ko) * 2014-12-23 2017-09-06 엠에이치아이 베스타스 오프쇼어 윈드 에이／에스 선박에 탑재된 풍력 터빈 블레이드 취급
CN107296405A (zh) * 2016-04-15 2017-10-27 天津市盛佳怡电子有限公司 一种风能叶片安放架
US20180073488A1 (en) * 2015-04-09 2018-03-15 Lm Wp Patent Holding A/S Modular Transportation and Storage System for a Wind Turbine Rotor Blade
EP3428064A1 (de) * 2017-07-10 2019-01-16 Bell Helicopter Textron Inc. System und verfahren zur drehflüglerlagerung
CN109611287A (zh) * 2019-01-09 2019-04-12 加美中（北京）科技有限公司 夹紧结构、尖车及翻转装置
EP3499027A1 (de) * 2017-12-13 2019-06-19 Senvion GmbH Anordnungen zum transport von rotorblättern einer windturbine
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CA2849214C (en) 2021-06-01
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