WO2024041683A1 - Procédé de changement des pales d'une éolienne - Google Patents

Procédé de changement des pales d'une éolienne Download PDF

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Publication number
WO2024041683A1
WO2024041683A1 PCT/DE2023/000084 DE2023000084W WO2024041683A1 WO 2024041683 A1 WO2024041683 A1 WO 2024041683A1 DE 2023000084 W DE2023000084 W DE 2023000084W WO 2024041683 A1 WO2024041683 A1 WO 2024041683A1
Authority
WO
WIPO (PCT)
Prior art keywords
wing
wind turbine
rope
dummy
rollers
Prior art date
Application number
PCT/DE2023/000084
Other languages
German (de)
English (en)
Inventor
Gernot De Bruyn
Original Assignee
Seilkonzept Gmbh & Co. Kg
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
Priority claimed from DE102023000050.7A external-priority patent/DE102023000050A1/de
Application filed by Seilkonzept Gmbh & Co. Kg filed Critical Seilkonzept Gmbh & Co. Kg
Publication of WO2024041683A1 publication Critical patent/WO2024041683A1/fr

Links

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
    • F03D13/10—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
    • F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
    • F03D13/104—Rotor installation, e.g. installation of blades
    • 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
    • F03D13/139—Assembling or erecting wind motors by using lifting means
    • 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
    • F03D80/50—Maintenance or repair
    • 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
    • F03D80/50—Maintenance or repair
    • F03D80/502—Maintenance or repair of rotors or blades
    • 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
    • F03D80/80—Arrangement of components within nacelles or towers
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/02—Transport and handling during maintenance and repair

Definitions

  • the invention relates to a method for changing the blades of a wind turbine.
  • the blades of the wind turbines in question become dirty and age. To ensure that the performance of a wind turbine is not impaired to a great extent and, in particular, to prevent the blades from breaking and thus endangering the environment, replacing the blades is often unavoidable.
  • the invention aims to provide a cost-effective, resource-saving method for changing the blades of a wind turbine, which can also be used at higher wind speeds and in offshore wind farms.
  • pulleys are used for raising and / or lowering a wing, the fixed rollers of which are fixed within the mounting opening in the hub of the wind turbine, so that a point of attack of a rope end of at least one first pulley is within the mounting flange of the Wing is arranged and that the other rope end is guided via deflection rollers in the nacelle of the wind turbine to at least one winch on a resiliently anchored platform.
  • the platform must be anchored in such a way that the forces acting on the winches can be safely absorbed. There are various options for this.
  • the platform can be anchored to the ground, loaded with counterweights or, for example, fixed to the mast in offshore systems.
  • pulleys are basically arbitrary, but care must be taken to ensure that the overall height is kept as low as possible so that the threaded bolts of the mounting flange of the wing can be inserted into the corresponding recesses in a mounting ring around the mounting opening. Accordingly, pulleys are preferred in which the axes of the rollers are in one plane lie and, if necessary, the rolls are set in a block.
  • the nacelle Since the entire load of a wing is diverted via deflection rollers within the nacelle in order to be guided through a material hatch to a winch on a resiliently anchored platform, the nacelle experiences a load of several tons, which must be taken into account statically.
  • Second pulleys then no longer exert any pulling force and can be removed from the wing by industrial climbers, for example become.
  • the wing then hangs on several first pulleys. Their load capacity is such that a pulley block can be relieved. It is then possible to remove the loop from this pulley and to fix this pulley directly to the stop point within the mounting flange of the sash. All loops can be removed one after the other, meaning nothing stands in the way of assembling the sash.
  • the method of mounting a wing described above requires the hub to be aligned as precisely as possible with a downward-facing mounting opening. Such alignment is carried out with the help of dummies, which initially replace wings. Such a dummy has the advantage that it is significantly smaller and lighter than a grand piano. A dummy like a 3-point traverse can only have a length of approx. 15 m and a weight of 1.5 t compared to a 100 m long wing that weighs more than 20 t.
  • the assembly of such a first dummy is basically carried out in the manner described above, in which at least one pulley is used, the fixed rollers of which are fixed within the assembly opening in the hub of the wind turbine, so that a point of attack of a rope end of the at least one pulley is within the mounting flange of the dummy is arranged, and that the other end of the rope is guided via deflection rollers in the nacelle of the wind turbine to at least one winch on a resiliently anchored platform.
  • a rope is attached to it approximately in the middle, which runs above the hub to at least one winch on a resiliently anchored platform.
  • the length of the rope is then shortened until the assembly opening following the dummy is visible Hub points downwards and another dummy can be mounted and so on until a final mounting opening for mounting a first wing points downwards.
  • a rope is attached to the middle of the wing, which runs over the tips of dummies to a winch on a resiliently anchored platform.
  • the rope length is shortened until the dummy following the wing points downwards for disassembly, and after the dummy has been dismantled, another wing is installed and so on until a final wing is assembled.
  • deflection rollers with pegs are fixed over the ground at a distance of, for example, 200 m.
  • the load capacity of the ground anchors, which are preferably driven into the ground with back-up securing devices, must be checked.
  • this measure has the advantage that the ropes are attached to winches from above on a vehicle-mounted, for example, in particular with additional weights loaded platform can be guided.
  • a platform will not only accommodate all the winches, but also their controls. It has proven to be useful if the loads on the ropes are monitored using tension scales whose measurements are transmitted wirelessly, for example via Bluetooth. It is particularly important to remember that the vehicle used is a closed delivery van. In such a vehicle, the ropes are led to the winches through a roof hatch in the vehicle roof. In order to counteract the stress caused by this, the vehicle must be regularly loaded with additional weights.
  • Such a vehicle represents, so to speak, a control center from which the changing of the blades of a wind turbine is monitored and controlled.
  • Fig. 1 the explanation of lifting a sash from a floor
  • Fig. 2 a side view of the gondola with a wing held in a vertical position and is based on the
  • Fig. 3 to 6 the positioning of the hub explained.
  • Fig. 1 shows a wing 1 in a holder 2 of a transport trolley 3 on a floor 4.
  • the threaded bolts 7 are to be inserted into corresponding recesses in a mounting ring 8 to 10 enclosing a mounting opening.
  • the wing 1 must be lifted as horizontally as possible from the holder 2 so that the wing tip 11 is not subjected to any load. Only pulleys are used whose fixed rollers are attached within the mounting openings or the vertically downward-pointing mounting ring 8 in the hub 5, while movable rollers or rope ends attack the wing 1.
  • pulley blocks are being considered, which have two fixed rollers and two movable rollers, with the usual dimensions of the wing 1 being approximately 100 m long and weighing over 20 t.
  • first pulleys which engage within the mounting flange 6, indicated by the arrows 15, 16.
  • second pulleys the fixed rollers of which are arranged corresponding to the fixed rollers of the first pulleys, engage the free wing tip 11 in stop anchors on the wing, which are usually provided at the factory, indicated by the arrows 18, 19.
  • Winches 30 are arranged on a platform 35 in a vehicle 36 and accessible through a roof hatch 37.
  • the vehicle 36 is regularly included to securely anchor the platform 35 on a floor 38 to load additional weights, not shown in the drawing.
  • the wing 1 is aligned vertically, see Fig. 2. In this position, the second pulleys no longer have any functions and are removed.
  • the rope end of the first pulley 41 is provided with textile loops 42 which have a length of, for example, 5 m, for example Dyneema band loops. These must be removed to assemble the wing 1 on the hub 5.
  • first pulleys 41 For this purpose, one of the five to six first pulleys 41 is relieved.
  • the load capacity of the first pulley blocks 41 must be designed accordingly. Industrial climbers, for example, then remove the loop 42 and attach the roller or block 40 of the relieved pulley to the wing 1. Once all loops 42 have been removed, the wing 1 can be further raised and assembled.
  • three additional ropes are attached to the wing tip 11. These are removed from the wind turbine 28 at a distance of approximately 200 m and are deflected to the ground at a pitch of 120°.
  • a rope 43 is shown as an example, which is deflected for the first time on a ground-fixed roller 44. Since in the exemplary embodiment the platform 35 is included Winches 45 are provided within the vehicle 36, a further deflection 46 takes place on the mast 47 of the wind turbine 28 at a sufficient height so that the rope 43 can also be fed to winches 45 through the roof hatch 37 of the vehicle 36.
  • a dummy 50 is initially planned.
  • a dummy 50 is significantly smaller and lighter than a wing 1.
  • it can be designed in the form of a tapered triangular traverse which is approximately 15 m long and weighs 1.5 t.
  • a role or a gift can also be provided.
  • a rope 51 is attached to it approximately in the middle and is guided over the hub 5 to a ground-mounted winch. If the rope 51 is shortened, the hub 5 behaves like a rotating roller. The rope 51 is then shortened until the subsequent mounting opening with mounting ring 10 points downwards, in which a second dummy 52 is then mounted. The rope 51 can then run from approximately the middle of the second dummy 52 over the middle of the first dummy 50 and the hub 5, see Fig. 4.
  • a first wing 53 can be mounted, shown shortened in FIGS. 5 and 6.
  • a rope 54 is used approximately in the middle of the wing 53 struck. This rope 54 is guided over the tips 55,56 of the dummies 50,52 to a ground-mounted winch. This measure significantly increases the leverage of the force applied to the hub 5 in order to take the weight of the wing 53 into account.
  • the rope 54 is shortened until the first mounted dummy 50 points vertically downwards and can be removed for mounting a second wing 57.
  • the rope 54 is attached in the middle of the two wings 53, 57 and guided over the tip 55 of the second dummy 52 to a ground-mounted winch.

Landscapes

  • 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

L'invention concerne un procédé de changement des pales d'une éolienne, dans lequel des dispositifs de bloc et de palan sont utilisés pour lever et/ou abaisser une pale, des poulies fixes dont les dispositifs sont fixés à l'intérieur de l'ouverture d'installation dans le moyeu (5) de l'éolienne (28), un point de mise en prise d'une extrémité de câble d'au moins un premier dispositif de bloc et de palan (41) est disposé à l'intérieur de la bride d'installation (6) de la pale (1), et l'autre extrémité de câble est guidée sur des poulies de déviation (25, 26) dans la nacelle (27) de l'éolienne (28) vers au moins un treuil (30) sur une plateforme (35) qui est ancrée de façon à pouvoir supporter une charge.
PCT/DE2023/000084 2022-08-22 2023-07-31 Procédé de changement des pales d'une éolienne WO2024041683A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102022003057.8 2022-08-22
DE102022003057 2022-08-22
DE102023000050.7 2023-01-11
DE102023000050.7A DE102023000050A1 (de) 2022-08-22 2023-01-11 Verfahren für einen Wechsel der Flügel einer Windkraftanlage

Publications (1)

Publication Number Publication Date
WO2024041683A1 true WO2024041683A1 (fr) 2024-02-29

Family

ID=87801212

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2023/000084 WO2024041683A1 (fr) 2022-08-22 2023-07-31 Procédé de changement des pales d'une éolienne

Country Status (1)

Country Link
WO (1) WO2024041683A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070290426A1 (en) * 2004-11-22 2007-12-20 Alf Trede Device and Method for Mounting and Dismantling a Component of a Wind Turbine
DE102009013876A1 (de) * 2009-03-16 2010-09-23 Würthele, Klaus Vorrichtung zum Verdrehen des Rotors einer Windkraftanlage während der Montage
WO2010115135A1 (fr) * 2009-04-02 2010-10-07 Frontier Pro Services Treuil pour l'entretien des éoliennes
EP2868914A1 (fr) * 2013-10-09 2015-05-06 Mitsubishi Heavy Industries, Ltd. Dispositif et procédé permettant d'attacher et de détacher une pale pour éolienne
EP3091222B1 (fr) * 2015-05-07 2019-11-06 General Electric Company Système et procédé de remplacement d'un palier de pale d'éolienne
EP3088732B1 (fr) * 2015-04-27 2020-02-05 General Electric Company Procédé et système de remplacement d'une pale de turbine éolienne unique

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070290426A1 (en) * 2004-11-22 2007-12-20 Alf Trede Device and Method for Mounting and Dismantling a Component of a Wind Turbine
DE102009013876A1 (de) * 2009-03-16 2010-09-23 Würthele, Klaus Vorrichtung zum Verdrehen des Rotors einer Windkraftanlage während der Montage
WO2010115135A1 (fr) * 2009-04-02 2010-10-07 Frontier Pro Services Treuil pour l'entretien des éoliennes
EP2868914A1 (fr) * 2013-10-09 2015-05-06 Mitsubishi Heavy Industries, Ltd. Dispositif et procédé permettant d'attacher et de détacher une pale pour éolienne
EP3088732B1 (fr) * 2015-04-27 2020-02-05 General Electric Company Procédé et système de remplacement d'une pale de turbine éolienne unique
EP3091222B1 (fr) * 2015-05-07 2019-11-06 General Electric Company Système et procédé de remplacement d'un palier de pale d'éolienne

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