WO2019042510A1 - Système et procédé de plate-forme de travail permettant de monter un système de plate-forme de travail - Google Patents

Système et procédé de plate-forme de travail permettant de monter un système de plate-forme de travail Download PDF

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Publication number
WO2019042510A1
WO2019042510A1 PCT/DK2018/050209 DK2018050209W WO2019042510A1 WO 2019042510 A1 WO2019042510 A1 WO 2019042510A1 DK 2018050209 W DK2018050209 W DK 2018050209W WO 2019042510 A1 WO2019042510 A1 WO 2019042510A1
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WO
WIPO (PCT)
Prior art keywords
nacelle
platform
main
working platform
main beam
Prior art date
Application number
PCT/DK2018/050209
Other languages
English (en)
Inventor
Tommy SØRENSEN
Original Assignee
Envision Energy (Denmark) Aps
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 Envision Energy (Denmark) Aps filed Critical Envision Energy (Denmark) Aps
Priority to CN201880054563.5A priority Critical patent/CN111065815B/zh
Publication of WO2019042510A1 publication Critical patent/WO2019042510A1/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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/24—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons
    • 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
    • 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
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/916—Mounting on supporting structures or systems on a stationary structure with provision for hoisting onto the structure
    • 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
    • Y02E10/728—Onshore wind turbines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present invention relates generally to the field of wind turbines, and more particularly to a working platform system for a wind turbine, the wind turbine comprises a wind turbine tower, a nacelle arranged on top of the wind turbine tower, and a rotatable rotor with at least two wind turbine blades, where the working platform system comprises a working platform having a platform base, a platform floor and a railing attached to the platform base.
  • the invention also relates to a method for mounting a working platform system for a wind turbine, the wind turbine comprises a wind turbine tower, a nacelle arranged on top of the wind turbine tower, and a rotatable rotor with at least two wind turbine blades, where the working platform system comprises a working platform having a platform base, a platform floor and a railing attached to the platform base, where the method comprises the steps of:
  • a working platform is used for effecting work in relation to the cover of the nacelle or the opening in the nacelle which is hanging in a crane.
  • the system is difficult to use in harsh weather.
  • it is difficult to secure the platform in relation to the nacelle when working on different elements at the nacelle, e.g. when mounting the bearings.
  • working platform system further comprises:
  • first fastening means and first counterpart fastening means are arranged for re- leasable cooperation to releasable fasten the working platform to the main structure of the nacelle and
  • the working platform system further comprises two main beams
  • main beams are provided with first connection means arranged in a first part of each main beam for releasable cooperation with first counterpart connection means in the main structure of the nacelle to releasable fasten the main beams to the main structure of the nacelle, with the first part of each main beam arranged inside the nacelle and with a second part of each main beam extending outside an opening in a nacelle cover,
  • the two main beams are provided with second connections means arranged in the second part of each main beam for releasable cooperation with second counterpart connection means in the platform base to releasable fasten the platform base to the main beams, and that the first fastening means and the first counterpart fastening means comprise the first connection means and the first counterpart connection means.
  • the method according to the present invention is peculiar in that the method further comprises the steps of:
  • first connection means arranged in the first part of each main beam and arranged for releasable cooperation with first counterpart connection means in the main structure of the nacelle
  • the working platform is arranged in front of the nacelle by a crane.
  • Technicians who are in the nacelle can position the working platform, e.g. by grabbing straps being mounted on the working platform or directly by gripping the platform and guiding the fastening means into engagement.
  • boat hooks are normally used.
  • a common advantage of all fastening means is that they are intended for releasable cooperation.
  • the fastening can be brought into engagement in order to fasten the working platform to the main structure of the nacelle, and after the platform has been used it is possible in an easy way to disengage the fastening means and bring the working platform to ground level, where after it is easy to demount or to reuse the working platform in connection with another wind turbine.
  • the present invention makes it possible to obtain the advantages of assembling the working platform at ground level and also the advantages of having a working platform which is fixed to the main structure of the nacelle when the working platform is used.
  • Typical work to be done from the working platform would be maintenance, mounting and demounting of moment bearings.
  • work on generators and other equipment in the nacelle can be effected from the working platform.
  • the working platform would normally be arranged in front of the nacelle in a position in front of the opening through which the main shaft is extending when the wind turbine is in use.
  • the working platform is attached in relation to other openings in the nacelle structure where work is intended to be formed through the opening.
  • the working platform is especially efficient due to the use of the two main beams fastened to the main structure of the nacelle.
  • the main beams may be stored in the nacelle or may be hoisted to the nacelle when mounting a working platform.
  • the two main beams may be positioned in the correct way with technicians being inside the nacelle during the positioning of the main beams.
  • the main beams will be attached to the main structure of the nacelle as the first part of a main beam is connected to the main structure of the nacelle.
  • the second of each main beam will extend outside the opening in the nacelle cover.
  • the opening might be the opening in which the moment bearing is to be mounted.
  • the crane After having arranged the main beams with the second part extending outside the nacelle it is possible with the crane to hoist the working platform system which has been assembled at ground level.
  • the working platform system is hoisted and arranged with the platform base in contact with the second part of the main beams. After this, the working platform system is connected to the second part of the main beams, e.g. with use of bolts or security pins or a combination thereof.
  • bolts will constitute the security means which, in a detachable way, makes it possible to have secure engagement between the beams and the working platform and the main structure respectively.
  • the fastening means When using the main beams it is possible to consider that the main beams constitute a part of the nacelle. In this situation, the fastening means would be considered to be the second connection means arranged in the second part of the main beam and which in a releasable way cooperate with the second counterpart connection means in the platform base. However, in a situation where the main beams are considered to be a part of the working platform, then the fastening means would be constituted of the first connection means which are in the first part of each main beam and which are intended for releas- able cooperation with the first counterpart connection means in the main structure of the nacelle.
  • the embodiment will benefit of the advantages already explained above, namely to have an easy and quick procedure to attach the working platform to the main structure of the nacelle.
  • the platform base has two channels in which the parallel second parts of the two main beams can enter. After the main beam parts are arranged in the channels, the connection is provided by bolting the parts together.
  • the working platform may be provided with a cover. Otherwise, a cover might be provided on the sides of the working platform at ground level. This will depend on the weather conditions.
  • the two main beams will be identical and will be mounted one by one according to a well-defined procedure.
  • a strap is mounted in both ends of the beams.
  • the crane must grab the second end of the main beam, and the strap in the first end of the beam is going to be caught by the technicians which are positioned in the nacelle. This catching could be effected by the use of a boat hook.
  • the main beam is orientated into the correct position. This could be assisted by having signs on the beam. These signs may e.g. state that it is a left hand or right hand side beam and having a marking for the upwards side as well as a marking for the direction against the center.
  • the first part of the main beam is guided into the opening in the main frame concurrently with the crane lowering the second part. This is effected until the beam is substantially horizontal and, thereby, able to be slided into the final position in the nacelle.
  • the main beams are orientated in such a way that the second parts extend outside the nacelle and are parallel.
  • the distance between the two beams will be fixed and determined by the fixation points inside the nacelle and the form of the main beams.
  • a connection could be effected by using holes already provided in the main structure of the nacelle and using bolts for fixation of the main beams to such existing holes.
  • specific mounting holes may be provided in the main structure of the nacelle.
  • the working platform in assembled form is hoisted to the nacelle.
  • a crane hooking to four straps arranged in the assembled working platform and tag lines are controlled by technicians on the ground.
  • technicians being in the nacelle would use boat hooks to catch the rope and guide the platform to slide over the two main beams which enter into channels in the platform base.
  • the platform may be temporarily fastened with straps to the nacelle. Then the crane can be unhooked. After this, the platform is connected to the main beams by use of bolts entering through holes in order to fixate the platform base to the main beams.
  • the platform railing is arranged and three sides leaving one side opened for work at the nacelle.
  • the platform has removable sides which can be demounted when needed. In such situation, the railing can be stored inside the nacelle.
  • the platform has a doubled floor in the center of the platform.
  • different heights of the platform could be obtained depending of the type of work going on at the nacelle.
  • the removable floor can be stored in the platform or in the nacelle when not used.
  • the working platform system could also comprise a roof.
  • the roof may be attached to the railings of the platform.
  • the roof may be connected directly to the nacelle.
  • the roof will then be mounted through openings in the nacelle cover.
  • Support legs will then enter through the openings and be attached to the main part of the nacelle.
  • the construction of the working platform is explained primarily in connection with the use of two main beams. However, also embodiments of the platform where hooks are used will have the same structure of the working platform. In such situation, the working platform will not have the channels in the platform.
  • the platform may have hook members arranged at the platform base. Such hooks would constitute the first fastening means.
  • the working platform system could also have further fastening means in the working platform and further counterpart fastening means in the main structure of the nacelle. Such further fastening means and further counterpart fastening means could also be hooks.
  • Such further fastening means could e.g. be provided in the platform base or in the platform floor or in the railing attached to the platform base.
  • magnets may be used as fastening means.
  • the magnets could be permanent magnets or electro magnets.
  • each main beam comprises a foot arranged at each end of the first part of the main beam and that said feet are provided with the first connection means.
  • the feet are arranged in order to have a precise and well defined attachment surface between the beam and the platform base or the main structure of the nacelle. It would often be that the main structure of the nacelle would be a part of the floor in the nacelle.
  • the system according to the present invention is peculiar in that the second parts of the main beams are parallel.
  • the system according to the present invention is peculiar in that the railing is provided with third connections means for releasable cooperation with third counterpart connection means in the platform base to releasable fasten the railing to the platform base.
  • connection means in the railing cooperating with third counterpart connection means in the platform base it is possible to dismount the platform for easy storing when not in use. Also, it is possible with such construction to provide different railings with one and same platform base. Hereby it is possible to adapt a working platform system to different kinds of nacelles and to different openings.
  • the system according to the present invention is peculiar in that at least in a central part of the platform there is provided a double floor.
  • the double floor it is possible to have a correct working position for different tasks to be effected.
  • the double floor may be arranged in relation to the platform base in an adjustable way in order to have an adjustable height for the upper floor.
  • the system according to the present invention is peculiar in that a connection eye is arranged at each end of a main beam for mounting a strap used for hoisting and lowering the main beam to the nacelle.
  • connection eye it is easy to hoist and lover the main beam to the nacelle if it could not be stored in the nacelle when the platform is not in use.
  • One eye could be attached to a strap in a hook on a crane and the other eye could be attached to a strap which is grabbed by a technician in the nacelle when the main beam is in position outside the opening.
  • the end of the main beam could be swung into the nacelle, and by lowering the hook to the other eye the main beam could be swung and slid into the nacelle to be correctly positioned.
  • the sliding movement could be assisted by the technicians being in the nacelle who would effect a pull in the strap attached to the eye in the end of the main beam which is first swung into the nacelle.
  • the system according to the present invention is peculiar in that the first and second connection means and the first and second counterpart connection means comprise thread and bolt connections.
  • the first and second connection means and the counterpart connection would normally be thread and bolt connections. Also other connections are possible.
  • the use of bolt connection is common in the nacelle and, therefore, the use of thread and bolt connections will have the advantage that tools are already present in the nacelle for providing the connection.
  • the system according to the present invention is peculiar in that the third connection means and the third counterpart connection means comprise telescopically connected tube profiles provided with holes and bolts for entering through said holes.
  • the railing could be dismounted from the platform base.
  • third connection means and third counterpart connection means being telescopically connected it is possible to have the element telescopically pushed into each other during storage.
  • the telescopically engagement could only be a partially engagement of a part of the tubes which are used for mounting the railing to the platform base. This is commonly known to provide different diameters in the tubes and, hereby, a secure and correct engagement between different tube elements in the construction will be obtained.
  • the railing not necessarily needs only to be constructed from one single tube profile.
  • the height of the railing could be adjusted by use of more interconnected tube profiles.
  • the method according to the present invention is peculiar in that the method further comprises the steps of:
  • the method according to the present invention is peculiar in that the step of hoisting the main beams from ground level to the nacelle comprises the steps of:
  • this method step is only necessary in situations where the main beam are stored at ground level or in a situation where a working platform system should be mounted for the first time in a wind turbine. Accordingly, this method step could be effected only once and, after the dismounting of the working platform, the main beams may be stored in the nacelle for later use. According to a further embodiment, the method according to the present invention is peculiar in that the method further comprises the steps of:
  • a cover could normally be usable in order to have more extended use of the working platform.
  • the three sides and the roof would be covered and, then, leaving one side opening facing the nacelle and which could be used for work. Accordingly, the technicians, who should effect the work, could work in an efficient way even under harsh weather conditions.
  • FIG. 1 shows a perspective view of a wind turbine
  • Fig. 2 shows a perspective view of an operating a platform system not being a part of the present invention
  • Fig. 3 shows a perspective view corresponding to fig. 2 to illustrate an embodiment for a working platform system according to the present invention
  • Fig. 4 shows a partial perspective view of a detail of the working platform illustrated in figs. 2 and 3,
  • Fig. 5 shows a partial view of another detail of the working platform illustrated in figs. 2 and 3,
  • Fig. 6 shows a partial view of a nacelle provided with main beams for use in the second embodiment illustrated in fig. 3,
  • Fig. 7 shows a partial side view seen from the outside of the nacelle illustrating the main beams extending out from the nacelle
  • Fig. 8 shows a partial perspective view seen from the front side with a working platform system mounted on a nacelle
  • Fig. 9 shows a partial view seen from the front side of the nacelle illustrating a roof section to be used over the working platform
  • Fig. 10 shows a schematic view illustrating the hoisting of a working platform from ground level to the nacelle.
  • a typical wind turbine 1 comprising a tower 2 installed at a foundation 3.
  • a nacelle 4 comprising e.g. a gearbox, a generator, and other components is seen.
  • a shaft for carrying a rotor comprising a hub 5 and three wind turbine rotor blades 6 is also installed.
  • the rotor blades 6 are arranged at the hub 5 at a first end 7 called the root end of the rotor blade 6.
  • the second end 8 of the rotor blades 6 constitutes a tip end.
  • Fig. 2 shows a working platform system 9 not being apart of the present invention.
  • the working platform system comprises a working platform 10.
  • the working platform 10 comprises a platform base 11, a platform floor 12 and a railing 13 attached to the platform base 11.
  • the working platform system furthermore comprises first fastening means 14 arranged at the platform base 1 1.
  • the first fastening means 14 comprise a hook member 15 consisting of a rod 16 which is attached in the platform base 11 and connected therewith with connection means (not illustrated).
  • a downwardly orientated rod member 17 is arranged in order to establish the hook 15.
  • the hook 15 cooperates with first counterpart fastening means 18 which are arranged to be attached to the main structure of the nacelle.
  • the first counterpart fastening means comprise a basis portion 19 provided with holes 20 which are intended for the passage of a bolt through which the first counterpart fastening means are attached to the nacelle.
  • the first counterpart fastening means comprise an upper portion 21 being thinner than the basis portion 19.
  • an open space 22 is provided between the upper portion 21 and a surface of the main part of the nacelle to which the first counterpart fastening means 18 is attached.
  • This open space 22 constitutes an eye part in which the rod 19 could be arranged. In this way, the working platform 9 will be hooked to the main structure of a nacelle.
  • the working platform 9 comprises a double floor having a first outer floor portions 23 and a central floor portion 24.
  • the central floor portion 24 is arranged in a way that it can be raised and lowered by height adjusting means (not shown).
  • the platform base 11 comprises first tube profiles 25 which are intended to hold a second tube profiles 26 constituting a part of the railing 13.
  • the tube parts could be telescopically entered into each other and they are provided with holes 35 (see fig. 5) in which thread and bolts are used to secure the railing 13 to the platform base 11.
  • the second tube profile 26 would be substantial vertical in use and is interconnected with substantially horizontal tube profiles 27 in order to create a secure railing.
  • the railing is provided with three sides leaving one side open which would face the nacelle.
  • the working platform in fig. 3 corresponds to the working platform in fig. 2 and explanation for the parts of the working platform which is similar will not be explained in connection with fig. 3.
  • the embodiment of the working platform system illustrated in fig. 3 comprises fastening means which differs from the fastening means illustrated in fig. 2.
  • Fig. 3 discloses first fastening means 14 in the form of two main beams 28.
  • the main beams 28 have a first part 29 and a second part 30.
  • first connection means 31 are arranged in the first part 29.
  • the first connection means are arranged in the form of feet at the lower side of the main beams 28.
  • These first connection means are intended for cooperation with first counterpart connection means in the main structure of the nacelle (explained in connection with fig. 6) whereby the main beams could be releasa- ble fastened to the main structure in the nacelle.
  • connection means would be provided in form of holes 53 cooperating with bolts 32 which are screwed through the main beam and the feet as illustrated in fig. 3.
  • first part 29 of the main beam 28 is mounted in the nacelle the second part 30 would extend outside an opening 33 in the nacelle 4.
  • the two sec- ond parts 30 are arranged with a parallel extension as illustrated in Fig. 6.
  • each main beam second connection means in form of holes 34 are arranged.
  • the holes 34 are intended for receiving bolts (not shown) which are used for connecting the second part 30 to the platform base 11.
  • the opening 53 is provided in the end of the main beams.
  • a corresponding hole is arranged in the other end of the main beam (not visible) in the figure.
  • the holes 53 will, during the lifting and mounting of the main beam from ground level to the na- celle, be used as eyes to which a strap is attached to each end of the main beam. The use of these straps and the holes is explained in the introductory part of the description. Separate eyes may alternatively be provided.
  • Figs. 6 and 7 illustrate the main beams 28 attached in the nacelle.
  • the main structure 35 comprises a surface or a floor 36 and to this surface the first parts 29 of the main beams are attached by means of the screws 32.
  • Fig. 6 illustrates the situation seen from above with a part of the nacelle removed for clarity reasons.
  • Fig. 7 illustrates the situation seen from outside and in a side view. It occurs that the second part 30 of the main beam 28 is arranged in a substantial horizontal orientation. Accordingly, this orientation would be adapted with the use of the feet 31 in order to accommodate the tilt of the nacelle.
  • Fig. 4 illustrates a partial view of the railing 13.
  • the horizontal tube profiles 27 are connected with the vertical tube profile 26.
  • Brackets 37 (only one illustrated) is attached to the vertical tube profile 26 and is used to support the ends of the horizontal tube profiles 27.
  • the parts are connected with each other by means of bolts 38.
  • Fig. 5 illustrates a partial view of the interconnection of a vertical tube profile 26 and a first tube profile 25 being a part of the platform base 1 1.
  • the tube profiles 25,26 are telescopically entered into each other.
  • Holes 39 are provided through the tube profiles in order to interconnect the tube profiles by means of thread and bolt connections.
  • Fig. 8 illustrates a partial view as seen from the front side illustrating the nacelle 4 on top of the tower 2 with a working platform 10 attached to the front side of the nacelle.
  • a moment bearing 40 is seen which may be serviced by technicians being positioned on the platform floor 12.
  • the railing is shown without any covering.
  • a covering can be provided to cover the three side walls comprising the tube sections 27. Such covering may be attached to the horizontal tube section 27.
  • the technicians being positioned on the working platform 10 will be secured against harsh weather.
  • Fig. 9 illustrates a further embodiment with a roof section 41 for the working platform.
  • the roof section can also be provided with a cover (not illustrated).
  • the roof section 41 comprises a frame 42 which is provided with legs 43 having feet 44 for connection to the main structure 35 of the nacelle. Furthermore, legs 45 extend through openings 46 into the nacelle in order to provide attachment to other part of the main structure of the nacelle.
  • a hatch 47 is provided in the covering 48. Persons who should work on the working platform can go out through the hatch 47 and easily enter the working platform.
  • Fig. 10 illustrates a situation where a working platform 9 is being hoisted from ground level 49 to the nacelle. In this figure no taglines are arranged even though such tag- lines would be used in order to control the movement of the working platform during the hoisting and the positioning in front of the nacelle 4.
  • a crane 50 is used having a hook 51 which is attached to straps 52 connected with the working platform 9.
  • the different steps for mounting the working platform 9 are explained in the introductory part of the description.

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

Abstract

L'invention concerne un système de plate-forme (9) pour une éolienne (1). L'invention concerne également un procédé permettant de monter un tel système de plate-forme de travail. L'éolienne comprend une tour éolienne (2) et une nacelle (4) disposée au-dessus de la tour éolienne. Le système de plate-forme de travail comprend une plate-forme de travail (10) ayant une base de plate-forme (11), un plancher de plate-forme (12) et un garde-corps (13) fixé à la base de plate-forme. Afin d'établir la plate-forme de travail de manière efficace, le système de plate-forme de travail comprend en outre : des premiers moyens de liaison homologues dans la base de plate-forme (11) ; des seconds moyens de liaison homologues dans la structure principale (35) de la nacelle ; deux poutres principales (28), chaque poutre comprenant des premiers moyens de liaison (31) dans une première partie (29) pour une coopération amovible avec des premiers moyens de liaison homologues dans la structure principale de la nacelle, et comprenant en outre des seconds moyens de liaison (34) dans une seconde partie (30) pour une coopération amovible avec des seconds moyens de liaison homologues dans la base de plate-forme (11).
PCT/DK2018/050209 2017-08-29 2018-08-27 Système et procédé de plate-forme de travail permettant de monter un système de plate-forme de travail WO2019042510A1 (fr)

Priority Applications (1)

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CN201880054563.5A CN111065815B (zh) 2017-08-29 2018-08-27 工作平台系统及安装工作平台系统的方法

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WO2015160063A1 (fr) * 2014-04-15 2015-10-22 (주)케이렘 Plate-forme de réparation et d'entretien d'éolienne

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US2136696A (en) * 1937-04-17 1938-11-15 Safety Scaffold Corp Scaffold
EP1516846A2 (fr) * 2003-09-19 2005-03-23 PERI, S.A. Sociedad Unipersonal Ascenseur pour transporter des personnes le long d'un mât d'une éolienne
US20130074337A1 (en) * 2010-06-09 2013-03-28 Sinovel Wind Group Co., Ltd. Multifunctional platform of wind power generating unit and blade disassembling method
WO2015160063A1 (fr) * 2014-04-15 2015-10-22 (주)케이렘 Plate-forme de réparation et d'entretien d'éolienne

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