• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a maintenance device (1) for offshore wind turbine (10) adapted to be applied against and move along the mast (10a) of the wind turbine comprising: - a maintenance platform (2) comprising a notch (2a) preferably U-shaped, so that the mast of the wind turbine (10) can enter said notch (2a), and - moving means (3) of said maintenance platform (2) along the wind turbine mast (10a), comprising a plurality of motorized tracks (30) disposed below said maintenance platform so that when the wind turbine mast is disposed in said indentation with the vertical longitudinal axis of the mast of the wind turbine wind turbine perpendicular to the work plane (2b) of said maintenance platform, said tracks (30) comprising pads (30a) are adapted to bear against said mast of the wind turbine and move along the mast of the wind turbine. The present invention also relates to a wind turbine maintenance vessel (100) equipped with an offshore wind turbine maintenance device (1) (10) according to the invention.
    公开号:FR3067017A1
    申请号:FR1754937
    申请日:2017-06-02
    公开日:2018-12-07
    发明作者:Emmanuel Huot；Carlo Chiodini；Liborio Moceri；Romain Sylvestre
    申请人:Saipem SA；
    IPC主号:
    专利说明:

    DEVICE AND MAINTENANCE VESSEL FOR A WIND TURBINE
    OFFSHORE
    Invention background
    The present invention relates to a maintenance device for offshore wind turbines capable of being applied against the mast of the wind turbine and to move along the mast of the wind turbine, as well as to a maintenance method using a ship. of wind turbine maintenance equipped with a maintenance device for offshore wind turbine according to the invention.
    “Offshore wind turbine” is understood here to mean a wind turbine fixed in the sea floor or floating in the sea.
    The use of wind turbine installation means can be extended to their maintenance phase and the technical means differ according to whether the wind turbine is fixed or floating:
    For wind turbines fixed in the seabed or floating, a technology exists which is to use self-elevating or semi-submersible barges for maintenance. However, the availability of these means and / or their high cost of mobilization constitutes a limitation to their implementation.
    The technical problem to be solved is the handling, at heights of 100 to 150 meters above water, of parts of the wind turbine equipment to be dismantled at the top of the wind turbine, such as the hub, a blade, a multiplier, alternator, or nacelle whose weights can vary from 5 to 150 tonnes depending on the power of the wind turbine.
    A hydraulic system is known for sliding along the mast, in CN202879746 or nautical means for lifting wind turbine components in EP2319755, EP3019433 and EP2219986.
    Subject and summary of the invention
    An object of the present invention is to provide an improved maintenance device which does not require significant naval means such as a self-elevating or semi-submersible barge, but can be implemented with a simple service vessel, capable of being mobilized quickly.
    To do this, the present invention provides a maintenance device for offshore wind turbines capable of being applied against and moving along the mast of the wind turbine, comprising:
    - a maintenance platform (2) comprising a notch (2a) preferably in the shape of a U, delimiting two branches (2al, 2a2) capable of surrounding the mast of the wind turbine (10), so that the mast of the wind turbine (10) can enter said notch (2a) with the vertical longitudinal axis (XX 7 ) of the wind turbine mast perpendicular to the work plane (2b) of the upper surface of said maintenance platform, and
    - displacement means (3) of said maintenance platform (2) along the wind turbine mast (10a) in the longitudinal axial direction (XX 7 ) of the wind turbine mast, comprising a plurality of motorized tracks ( 30) arranged below said maintenance platform so that when the wind turbine mast is disposed in said notch with the vertical longitudinal axis of the wind turbine mast perpendicular to the work plane (2b) of said maintenance platform, said tracks (30) comprising skids (30a) are capable of being applied in abutment against said mast of the wind turbine and moving along the mast of the wind turbine.
    It is understood that the maintenance platform and the two branches which it forms extend in a horizontal plane perpendicular to the vertical longitudinal axis of the wind turbine mast, when the maintenance device is moved so that the mast of the wind turbine can enter said notch.
    More particularly, said tracks are capable of being actuated
    - Either in position of relative approach in cross section in a horizontal plane perpendicular to the vertical longitudinal axis of the mast of the wind turbine, to create a support of all the pads of said tracks against said mast of the wind turbine to allow movement in translation along the mast;
    - either in the relative release position in cross section in a horizontal plane perpendicular to the vertical longitudinal axis of the wind turbine mast, position in which at least part of the skids is moved relative to the others, to allow the approach or the distance of the maintenance device from said mast.
    More particularly, said displacement means (3) of said maintenance platform comprise n = 3 to 6 tracks (30) capable of being applied in abutment against said mast of the wind turbine while being regularly spaced from one another successively, in cross section in a horizontal plane perpendicular to the vertical longitudinal axis of the wind turbine mast.
    More particularly still, a plurality of said tracks are supported by at least one assembly (31) of a plurality of n track support elements (31.1 - 31.6) each supporting respectively a said track (30), said support elements track (31.1 - 31.6) being successively connected to each other in an articulated manner by hinge-type rotary articulation devices (32) along an axis of rotation perpendicular to the work plane (2b) of the maintenance platform to allow surround the mast of the wind turbine by said tracks on a part of the circumference of the mast of the wind turbine greater than a half circumference in cross section when said tracks are applied in abutment against said mast. We understand that:
    the axes of rotation of the hinge-type rotary articulation devices are mutually parallel and parallel to the vertical longitudinal axis (XX ′) of said mast when the maintenance device is in position on the mast, and
    - when the track support elements are articulated in rotation with respect to each other in an open or disengaged position, it is possible to move the maintenance device by positioning the mast in said notch, then to apply the tracks resting against the mast by rotating the track support elements in relation to each other in a closed position, the set of tracks resting forming a tightening clamp against the mast.
    More particularly still, the maintenance device comprises a plurality of p sets (31, 31a-31c) of a plurality of n track support elements (31.1-31.6) each supporting respectively a said track (30), said p sets (31, 31a-31c) of said track support elements as well as said p said track support elements supporting the same track being successively spaced from each other in the direction perpendicular to said work plane (2b) of said platform maintenance (2), p preferably being an integer 2 to 4. It is understood that:
    each track being supported by a plurality of p said track support elements respectively p sets of said track support elements, and
    - Said p sets of said track support elements as well as said p said track support elements supporting the same track are spaced one above the other successively in the longitudinal direction of said mast when said tracks are applied in abutment against said periphery of said mast.
    More particularly still, said tracks (30) comprise or are able to cooperate with support means (33, 33a-33c) allowing a differentiated radial deflection of said track over the length allowing support and displacement against a conical periphery said mast of the wind turbine when applied against said mast.
    It is understood that said support means of the tracks allow an inclination of said track along the length relative to the vertical at the same angle as the half-angle at the top of the cone of the peripheral surface of said mast.
    More particularly still, said support means (33, 33a-33c) authorizing a differentiated radial deflection of said track over the length comprise a plurality of p jacks mounted on p said track support elements of respectively p sets (31, 31a -31c) of said track support elements, said p cylinders being spaced from each other successively in the longitudinal direction of said track.
    More particularly still, the maintenance device comprises complementary displacement means (4) comprising pulleys (4a), cables (4b) and winch devices (4c) capable of allowing the movement of said maintenance platform along the mast. of the wind turbine (10a) in the longitudinal axial direction (XX ') of the wind turbine mast.
    More particularly, once the maintenance device is in place on the mast of the wind turbine, it is secured by winches at constant tension, each cable of which passes through a corresponding return pulley, previously fixed to the nacelle of the wind turbine. The maintenance platform moves in cooperation with the winches at constant tension along the wind turbine mast to access the parts to be dismantled then withdraws them to descend them along the mast and present them to the naval support for handling , storage and transport.
    More particularly still, the maintenance device comprises first gripping and transfer means (4-1) preferably comprising a first crane with articulated arm, disposed on said maintenance platform (2) and capable of ensuring gripping, lifting and moving part of the equipment (lOc-lOe) at the top of said wind turbine from the top of the wind turbine to said maintenance platform when the maintenance device (1) is in the high position against the mast of the wind turbine (10a).
    The present invention also provides a wind turbine maintenance vessel (100) equipped with a maintenance device (1) for an offshore wind turbine (10) according to the invention preferably consisting of a simple service vessel capable of being rapidly mobilized, said maintenance vessel further comprising second gripping and transfer means (5) arranged on the deck (100a) of the ship and capable of transferring the maintenance device (1) from the deck of the ship to the low position of a mast of an offshore wind turbine so that the mast of the wind turbine (10a) can be positioned in said notch (2a) with the vertical longitudinal axis of the mast of the wind turbine perpendicular to the work plane (2b) of the surface upper of said maintenance platform, when said ship is near said wind turbine.
    More particularly, said second gripping and transfer means (5) of the maintenance device comprise or cooperate with a heave compensation platform (6) capable of making it possible to keep a constant level in the vertical direction of said maintenance device (1) in case of hitting movement of said vessel linked to movements of the sea.
    More particularly still, said second gripping and transfer means (5) comprise lifting means (5a-5b), preferably a crane with articulated arm (5a) actuable by a jack (5b), said lifting means being able to be moved in translation on said compensation platform (6) on which they rest, said compensation platform comprising at least one shifting beam (6al, 6a2) and at least two compensation cylinders (6bl, 6b2) capable of maintaining a level constant in the vertical direction of the said shifting beam in the event of the pounding movement of the said vessel linked to movements of the sea.
    More particularly still, the ship also comprises third gripping and transfer means (7), preferably a crane with articulated arm, arranged on the deck of the ship and capable of gripping, lifting and moving part equipment (lOc-lOe) from said wind turbine to be repaired or replaced from said maintenance platform to the deck (100a) of said maintenance vessel when the maintenance device is in the low position against the mast of the wind turbine near said ship.
    The present invention also provides a method of maintaining an offshore wind turbine (10) using a maintenance vessel (100) according to the invention, characterized in that the following successive steps are carried out in which:
    a) transferring said maintenance device (1) from said maintenance vessel to the mast of the wind turbine (10a) so that the mast of the wind turbine is positioned in said notch (2a) between said two branches ( 2al, 2a2) with the vertical longitudinal axis of the wind turbine mast perpendicular to the work plane (2b) of the upper surface of said maintenance platform, said tracks (30) being in the release position in which at least part skids (30a) is moved relative to the others, to allow the approach and positioning of the maintenance device relative to said mast, and
    b) applying said tracks (30) bearing against said mast of the wind turbine,
    c) actuating said displacement means (3) of said maintenance platform so as to mount said maintenance platform (2) along the wind turbine mast (10a) in the longitudinal axial direction (XX 7 ) of the mast the wind turbine towards the top of the wind turbine, and
    d) maintenance of the wind turbine is carried out from said maintenance platform, and
    e) said displacement means (3) are actuated so as to descend said maintenance platform (2) along the wind turbine mast (la) in the longitudinal axial direction (XX 7 ) of the wind turbine mast towards the bottom of the wind turbine, and
    f) transferring said part of the equipment (lOc-lOe) of the wind turbine from said maintenance platform (2) to the deck of a ship, preferably the deck (100a) of said maintenance ship (100), when the maintenance device (1) is in the low position against the mast of the wind turbine (10a) near said maintenance vessel (100), and
    g) actuating said tracks (30) from their position in abutment against said mast of the wind turbine towards a release position in which at least part of the skids is moved relative to the others, to allow the maintenance device to be moved away compared to said mast.
    More particularly, the method according to the invention comprises the characteristics according to which:
    - in step a), the maintenance device is lifted and moved in translation using second gripping and transfer means (5) comprising lifting means (5a-5b), preferably a crane with articulated arm (5a) actuable by a jack (5b), said lifting means being moved in translation on a compensation platform (6) on which they rest, said compensation platform comprising at least one shifting beam (6al, 6a2) and at at least two compensating cylinders (6bl, 6b2) capable of maintaining a constant level of said shifting beam in the vertical direction in the event of hitting movement of said vessel linked to movements of the sea, and
    - in step b), said tracks are actuated from a release position to a position of relative approximation in cross section in a horizontal plane perpendicular to the vertical longitudinal axis of the wind turbine mast, to create support for all the pads (30a) of said tracks against said mast of the wind turbine to allow movement in translation along the mast once the rotation of the tracks actuated in step c);
    - in step d), part of the equipment (10-lOe) is placed on said maintenance platform at the top of said wind turbine to repair or replace it, preferably using first gripping and transfer means ( 4-1) arranged on said maintenance platform (2), when the maintenance device (1) is in the high position against the mast of the wind turbine (10a), and
    - in step f), said part of the material (lOc-lOe) of the wind turbine is transferred from said maintenance platform (2) to the deck of a ship, preferably the deck (100a) of said ship maintenance (100), using third gripping and transfer means (7), preferably a crane with articulated arm, arranged on the deck of said vessel, and
    - In step g), said tracks are actuated in the relative release position in cross section in a horizontal plane perpendicular to the vertical longitudinal axis of the wind turbine mast, release position in which at least part of the runners is moved relative to the others, to allow the maintenance device to move away from said mast.
    More particularly, said part of the equipment at the top of said wind turbine is chosen from a blade (10c), a mechanical part for rotating the blades such as rotor (10d), electric generator (10e) and nacelle (10b).
    Brief description of the drawings
    Other characteristics and advantages of the present invention will emerge more clearly on reading the description which follows, given in an illustrative and nonlimiting manner, with reference to the appended drawings in which:
    Figures IA and IB show side view (Figure IA) and top view (Figure 1b) of a maintenance device 1 according to the invention.
    FIG. 1C represents a light variant of a maintenance device 1 according to the invention in top view.
    Figures 2A and 2B show a side view and a top view of a maintenance device according to the invention raised by gripping and transfer means 5 resting on a heave compensation platform 6 above the deck of the ship.
    FIGS. 3A and 3B represent the maintenance device according to the invention 1 in the lifting position by the gripping and transfer means 5 before translation on a shifting beam 6al (FIG. 3A) and after translation on the shifting beam (FIG. 3B ).
    FIGS. 4A and 4B represent the maintenance device 1 positioned with the mast 10a of the wind turbine in the axis of the notch 2 of the maintenance platform 2.
    FIGS. 5A and 5B represent the assemblies 31 of track support elements 31.1 to 31.6 in the release position (FIG. 5A) around the mast 10a of the wind turbine, and in the support position of the tracks 30 against the mast 10a of the wind turbine (Figure 5B).
    FIG. 6 shows a view in vertical longitudinal section of two tracks applied, in diametrically opposite manner, to a mast 10a of the wind turbine of frustoconical shape at two different positions in longitudinal displacement along the axis XX 'of said mast.
    FIGS. 7A to 7D represent different positions of the maintenance device 1 along the mast 10a of the wind turbine, to carry out the removal of a blade 10c for maintenance on the maintenance ship 100.
    FIGS. 8A to 8C represent different stages of removal of the rotor 10d at the top of the wind turbine for its repair or maintenance on the deck of the ship.
    FIGS. 9A and 9B represent different stages of removal and transfer onto the deck of the ship of the generator 10e in the nacelle 10b at the top of the wind turbine.
    detailed description
    In FIGS. 1A, 1B, 4B and 5A, 5B as well as in FIG. 6 are shown a maintenance device 1 according to the invention comprising a platform 2, the upper work surface of which 2b has an octagonal contour, one of the sides of which is indented by a lateral indentation 2a, which ends with an internal contour of semi-circular shape around the vertical axis Χ1ΧΓ of the platform, the axis Χ1ΧΓ being intended to coincide with the axis XX 'of the mast 10a of wind turbine 10, when said platform is in position around said mast as described below. The lateral notch 2a forms two branches 2bl, 2b2 in the working plane 2b of the platform 2 arranged symmetrically on either side of the axis Υ1ΥΓ perpendicular to Χ1ΧΓ.
    The maintenance platform 2 supports various equipment such as winches and / or tools 4c, 5c and a first crane with articulated arm 4-1 as described below.
    In FIG. 1C, a simplified version of the maintenance device has been represented, in which the maintenance platform has a U-shaped working plane 2b with a semi-circular part which is extended by two rectangular lateral branches 2bl, 2b2 delimiting notch 2a.
    On the underside of the platform 2 are the motorized displacement means 3, constituted by a set of six tracks 30, supported by a group 31 of three sets of superimposed track supports 31a, 31b, 31c, spaced from one another in the axial direction Χ1ΧΓ along said tracks 30. Each set 31a, 31b and 31c consists of six track support elements 31.1 to 31.6, connected to each other successively by articulation devices 32 of hinge type along an axis of rotation perpendicular to the work plane 2b and therefore parallel to the longitudinal axis Χ1ΧΓ. A articulation in rotation is required at least at the level of two end track support elements 31.1 and 31.6 which can adopt:
    - An open or release position as shown in Figure 5A which allows to move in translation the maintenance device 1 by positioning the mast 10a in said notch 2a coaxially with it, such as the pads 30a of the tracks 30 supported by the other track elements 31-2 to 31-5 bearing on a part of the circumference of the mast or pylon 10a, covering a part of the circumference of said pylon less than a half-circumference of said pylon, and
    - A closed or supporting position by which the two end track support elements 31.1 and 31.1 are actuated in rotation so that the pads 30a of the tracks 30 which they support also come to bear against the circumference of the pylon 10a, such that the assembly of the tracks constitutes a clamping clamp against the mast 10a, the said tracks covering a part of the circumference of the mast greater than a semi-circumference in the transverse direction, when the said tracks are applied in abutment against the said mast.
    In FIG. 6, it is shown that the track support elements 31-1 to 31-6 also support jacks 33a to 33c constituting support means allowing a differentiated radial deflection of each said track over their length, allowing an inclination said tracks on their length relative to the axis XX 'of said mast and allowing support and displacement of the pads 30a of the tracks against the conical periphery of the mast.
    In FIG. 6, each of the tracks cooperates with a plurality of six jacks 33a, six jacks 33b, six jacks 33c, supported by the six track support elements 31-1, 31-6 of each of the three superimposed sets of track support 31a-31c.
    When all the pads 30a of the tracks 30 are in abutment against the mast 10a, the maintenance device 1 can be moved by actuating the motorization of the rotation of the pads of said tracks for their longitudinal displacement along the mast.
    The maintenance platform 2 supports the winches 4c, which allow, using cables 4b passing through return pulleys 4a mounted on the underside of the nacelle 10b at the top of the wind turbine, to move the maintenance device 1 along of the mast and constitute additional displacement means 4, securing the main displacement means 3. For the establishment of the return pulleys 4a on the underside of the nacelle 10b, the maintenance device 1 is mounted at the top of the wind turbine and the cable 4b is passed around the return pulley 4a, as shown in FIG. 7A.
    In FIGS. 2 to 4, a maintenance vessel 100 is shown near a wind turbine 10 equipped with a lower peripheral working platform 11, situated above sea level 12. The bridge 100a of the maintenance vessel 100 supports a heave compensation platform 6, comprising two parallel shifting beams 6al, 6a2 connected to each other by a frame 6a3 and arranged symmetrically with respect to the axis YY 'of the ship 100. Each shifting beam 6a 1, 6a2 is supported by two cylinders 6bl, 6b2 spaced in the longitudinal direction YY 'of the two beams. The jacks 6bl, 6b2 are supported at their lower ends by a beam 6c resting on the bridge 100a and the upper ends of the jacks 6bl and 6b2 cooperate with each shifting beam 6a 1, 6a2, arranged parallel side by side.
    Each shifting beam 6al, 6a2 supports a crane 5 consisting of an arm 5b articulated by a jack 5a, the two cranes 5 being able to lift the maintenance device 1 using cables 5c cooperating with winches 5c on the plane working 2 when the maintenance device 1 is arranged with the axis Y1Y1 'of the notch 2a in coincidence with the axis YY' of the ship with respect to which the two shifting beams are arranged symmetrically.
    In FIG. 3A, the lifting of the maintenance device 1 is shown using the gripping and transfer means 5 before their translation on the shifting beams 6a 1, 6a2 up to the end of the beams to arrive at near the mast 10a of the wind turbine as shown in Figure 3B.
    In FIG. 4A, the crane 5 is again inclined so as to position the axis XX 'of the mast 10 coaxially in the axis Χ1Χ of the semi-circular termination of the notch 2a, the tracks being in the open position as shown in Figure 5A. Then, in the closed position and until it rests against the mast 10a, said tracks 30 as shown in FIG. 5B and FIG. 4B.
    In FIG. 7A, the movement of the maintenance device 1 is shown towards the top of the wind turbine mast. In FIGS. 7B and 7C, the removal and then the descent of the blade 10e of the wind turbine on the platform 2 of the maintenance device 1 are shown. And, in FIG. 7D, the gripping and transfer of the blade 10c are shown. suspended from a sling 7b using a crane 7 at the top of a tower or pole 7a on the deck 100a of the ship 100 from the maintenance platform 2 located at the deck 100a of the ship.
    In FIGS. 8A to 8C, there is shown:
    - gripping and transferring the rotor lOd from the top of the wind turbine using a crane 4-1 disposed on the platform 2, when the maintenance device 1 is at the top of the mast 10a, then,
    - Gripping and transfer of the rotor lOd using the crane 7 on the deck of the ship 100, when the maintenance device is lowered down the mast 10a.
    The same operations are carried out using cranes 4-1 and 7 to recover and maintain the generator 10e of the wind turbine in FIGS. 9A and 9B.
    In FIGS. 7C, 7D, 8C and 9B, the vessel 100 to which the maintenance device transfers the pieces of equipment from the wind turbine, rotor, generator, nacelle, is not necessarily the vessel 100 which transferred the maintenance device on the wind turbine mast. It may be a second vessel fitted with a gripping device 7, which may however preferably be the maintenance vessel 100.
    A maintenance method for an offshore wind turbine 10 using a maintenance vessel 100 according to the invention comprises the following successive steps.
    a) transferring said maintenance device 1 from said maintenance vessel to the mast of the wind turbine 10a so that the mast of the wind turbine is positioned in said notch 2a between said two branches 2al, 2a2 with the axis vertical longitudinal XX ′ of the wind turbine mast in the axis Χ1ΧΓ of the upper surface of said maintenance platform, said tracks 30 being in the release position in which the two pads 30a of the tracks supported by the end support elements 31.1 and 31.6 are actuated in rotation in the open position relative to the others, to allow the approach and positioning of the maintenance device relative to said mast.
    To do this, the maintenance device 1 is lifted beforehand above the bridge 100a by a cable 5c using a crane with articulated arm 5a actuable by a jack 5b. Said crane 5 lifting the maintenance device 1 is moved in translation on the two shifting beams 6al, 6a2 each supported by the two jacks 6bl, 6b2 so as to form a compensation platform 6 capable of maintaining a constant level in the vertical direction of said shifting beam in the event of the hitting movement of said vessel linked to movements of the sea.
    b) applying said tracks 30 supported by the end support elements 31.1 and 31.6 bearing against said mast of the wind turbine.
    c) said displacement means 3 of said maintenance platform are actuated so as to mount said maintenance platform 2 along the wind turbine mast 10a in the longitudinal axial direction XX ′ of the windmill mast towards the top of the 'wind turbine.
    d) a part of the lOc-lOe material is placed on said maintenance platform at the top of said wind turbine to repair or replace it, using a crane with articulated arm 4-1 disposed on said maintenance platform 2, when the maintenance device 1 is in the high position against the mast of the wind turbine 10a, and
    e) said displacement means 3 are actuated so as to descend said maintenance platform 2 along the mast of the wind turbine 1a in the longitudinal axial direction (XX ′) of the mast of the wind turbine towards the bottom of the wind turbine.
    f) transferring said part of the equipment lOc-lOe of the wind turbine from said maintenance platform 2 to the deck 100a of said maintenance vessel 100, when the maintenance device 1) is in the low position against the mast of the wind turbine 10a near said maintenance vessel 100, using an articulated arm crane 7 disposed on the deck of the vessel.
    g) said tracks 30 are actuated from their position in abutment against said mast of the wind turbine towards a release position in which the tracks supported by the end support elements 31.1 and 31.6 are moved relative to the others in the release position or opening, to allow the distance of the maintenance vessel and the maintenance device supported by the crane 5 on the vessel 100 relative to said mast.
    More particularly, the assembly of the tool for moving the maintenance device consists of four to six tracks of tracks, fitted with skids and is capable of absorbing a force of 2750 to 3000 kN in the axis of the mast. The required speed is low and the requested power remains reasonable, around 200 kW.
    权利要求:
    Claims (15)
    [1" id="c-fr-0001]
    1. Maintenance device (1) for offshore wind turbine (10) capable of being applied against and moving along the mast (10a) of the wind turbine comprising:
    - a maintenance platform (2) comprising a notch (2a) preferably in the shape of a U, delimiting two branches (2al, 2a2) capable of surrounding the mast of the wind turbine (10), so that the mast of the wind turbine (10) can enter said notch (2a) with the vertical longitudinal axis (XX ') of the wind turbine mast perpendicular to the work plane (2) of the upper surface of said maintenance platform, and
    - displacement means (3) of said maintenance platform (2) along the wind turbine mast (10a) in the longitudinal axial direction (XX ') of the wind turbine mast, comprising a plurality of motorized tracks ( 30) arranged below said maintenance platform so that when the wind turbine mast is disposed in said notch with the vertical longitudinal axis of the wind turbine mast perpendicular to the work plane (2b) of said maintenance platform, said tracks (30) comprising pads (30a) are capable of being applied in abutment against said mast of the wind turbine and moving along the mast of the wind turbine.
    [2" id="c-fr-0002]
    2. Maintenance device (1) for offshore wind turbine (10) according to claim 1, characterized in that said displacement means (3) of said maintenance platform comprise n = 3 to 6 tracks (30) capable of being applied. resting against said wind turbine mast, being regularly spaced from each other successively, in cross section in a horizontal plane perpendicular to the vertical longitudinal axis (XX ') of the wind turbine mast.
    [3" id="c-fr-0003]
    3. Maintenance device (1) for offshore wind turbine (10) according to one of claims 1 or 2, characterized in that a plurality of said tracks are supported by at least one assembly (31) of a plurality of n caterpillar support elements (31.1 - 31.6) each supporting said crawler (30) respectively, said caterpillar support elements (31.1 - 31.6) being successively connected to each other in an articulated manner by articulation devices in rotation of hinge type (32) along an axis of rotation perpendicular to the work plane (2b) of the maintenance platform to allow the wind turbine mast to be surrounded by said tracks on a part of the circumference of the mast of the upper wind turbine at a half circumference in cross section when said tracks are applied in abutment against said mast.
    [4" id="c-fr-0004]
    4. Maintenance device (1) for offshore wind turbine (10) according to one of claims 1 to 3, characterized in that it comprises a plurality of p sets (31, 31a-31c) of a plurality of n support elements track (31.1-31.6) each supporting said track (30) respectively, said p sets (31, 31a-31c) of said track support elements as well as said p said track support elements supporting a same track being spaced apart from each other successively in the direction perpendicular to said work plane (2b) of said maintenance platform (2), p preferably being an integer 2 to 4.
    [5" id="c-fr-0005]
    5. Maintenance device (1) for offshore wind turbine (10) according to one of claims 1 to 4, characterized in that said tracks (30) comprise or are capable of cooperating with support means (33, 33a- 33c) allowing a differentiated radial deflection of said track over the length allowing support and displacement against a conical periphery of said mast of the wind turbine when they are applied against said mast.
    [6" id="c-fr-0006]
    6. Maintenance device (1) for offshore wind turbine (10) according to claim 5, characterized in that said support means (33, 33a-33c) allowing a differentiated radial deflection of said track over the length comprise a plurality of p cylinders mounted on p said track support elements of respectively p sets (31, 31a-31c) of said track support elements, said p cylinders being spaced apart from each other successively in the longitudinal direction of said track.
    [7" id="c-fr-0007]
    7. Maintenance device (1) for offshore wind turbine (10) according to one of claims 1 to 6, characterized in that it comprises complementary displacement means (4) comprising pulleys (4a), cables (4b ) and winch devices (4c) capable of allowing the movement of said maintenance platform along the mast of the wind turbine (10a) in the longitudinal axial direction (XX ') of the mast of the wind turbine.
    [8" id="c-fr-0008]
    8. Maintenance device (1) for offshore wind turbine (10) according to one of claims 1 to 6, characterized in that it comprises first gripping and transfer means (4-1) preferably comprising a first crane to articulated arm, arranged on said maintenance platform (2) and suitable for gripping, lifting and moving part of the material (lOc-lOe) at the top of said wind turbine from the top of the wind turbine to said maintenance platform when the maintenance device (1) is in the high position against the wind turbine mast (10a).
    [9" id="c-fr-0009]
    9. A wind turbine maintenance vessel (100) equipped with a maintenance device (1) for an offshore wind turbine (10) according to one of claims 1 to 8, preferably consisting of a simple service vessel capable of being mobilized. quickly, said maintenance vessel characterized in that it further comprises second gripping and transfer means (5) arranged on the deck (100a) of the ship and capable of transferring the maintenance device (1) from the deck of the ship to the low position of an offshore wind turbine mast so that the wind turbine mast (10a) can be positioned in said notch (2a) with the vertical longitudinal axis of the wind turbine mast perpendicular to the plane working (2b) of the upper surface of said maintenance platform, when said ship is near said wind turbine.
    [10" id="c-fr-0010]
    10. Maintenance vessel according to claim 9, characterized in that said second gripping and transfer means (5) of the maintenance device comprise or cooperate with a heave compensation platform (6) capable of making it possible to keep a constant level in the vertical direction of said maintenance device (1) in the event of the hitting movement of said vessel linked to movements of the sea.
    [11" id="c-fr-0011]
    11. Wind turbine maintenance vessel according to claim 10, characterized in that said second gripping and transfer means (5) comprise lifting means (5a-5b), preferably a crane with articulated arm (5a) actuable by a jack (5b), said lifting means being able to be moved in translation on said compensation platform (6) on which they rest, said compensation platform comprising at least one shifting beam (6al, 6a2) and at least two compensation cylinders (6bl, 6b2) capable of maintaining a constant level in the vertical direction of said shifting beam in the event of the hitting movement of said vessel linked to movements of the sea.
    [12" id="c-fr-0012]
    12. Wind turbine maintenance vessel according to one of claims 9 to 11, characterized in that it further comprises third gripping and transfer means (7), preferably a crane with articulated arm, arranged on the bridge of the ship and capable of gripping, lifting and moving part of the equipment (lOc-lOe) of said wind turbine to be repaired or replaced from said maintenance platform to the deck (100a) of said maintenance ship when the maintenance device is in the low position against the mast of the wind turbine near said vessel.
    [13" id="c-fr-0013]
    13. A method of maintaining an offshore wind turbine (10) using a maintenance vessel (100) according to one of claims 9 to 12, characterized in that the following successive steps are carried out in which:
    a) transferring said maintenance device (1) from said maintenance vessel to the mast of the wind turbine (10a) so that the mast of the wind turbine is positioned in said notch (2a) between said two branches ( 2al, 2a2) with the vertical longitudinal axis of the wind turbine mast perpendicular to the work plane (2b) of the upper surface of said maintenance platform, said tracks (30) being in the release position in which at least part skids (30a) is moved relative to the others, to allow the approach and positioning of the maintenance device relative to said mast, and
    b) applying said tracks (30) bearing against said mast of the wind turbine,
    c) actuating said moving means (3) of said maintenance platform so as to mount said maintenance platform (2) along the wind turbine mast (10a) in the longitudinal axial direction (XX 1 ) of the mast the wind turbine towards the top of the wind turbine, and
    d) maintenance of the wind turbine is carried out from said maintenance platform, and
    e) said displacement means (3) are actuated so as to descend said maintenance platform (2) along the wind turbine mast (la) in the longitudinal axial direction (XX 1 ) of the wind turbine mast towards the bottom of the wind turbine, and
    f) transferring said part of the equipment (lOc-lOe) of the wind turbine from said maintenance platform (2) to the deck of a ship, preferably the deck (100a) of said maintenance ship (100), when the maintenance device (1) is in the low position against the mast of the wind turbine (10a) near said maintenance vessel (100), and
    g) actuating said tracks (30) from their position in abutment against said mast of the wind turbine towards a release position in which at least part of the skids is moved relative to the others, to allow the maintenance device to be moved away compared to said mast.
    [14" id="c-fr-0014]
    14. Method according to claim 13, characterized in that:
    - in step a), the maintenance device is lifted and moved in translation using second gripping and transfer means (5) comprising lifting means (5a-5b), preferably a crane with articulated arm (5a) actuable by a jack (5b), said lifting means being moved in translation on a compensation platform (6) on which they rest, said compensation platform comprising at least one shifting beam (6a 1, 6a2) and at least two compensating jacks (6bl, 6b2) capable of maintaining a constant level in the vertical direction of said shifting beam in the event of hitting movement of said vessel linked to movements of the sea, and
    - in step b), said tracks are actuated from a release position to a position of relative approximation in cross section in a horizontal plane perpendicular to the vertical longitudinal axis of the wind turbine mast, to create support for all the pads (30a) of said tracks against said mast of the wind turbine to allow movement in translation along the mast once the rotation of the tracks actuated in step c);
    - in step d), part of the equipment (10-lOe) is placed on said maintenance platform at the top of said wind turbine to repair or replace it, preferably using first gripping and transfer means ( 4-1) arranged on said maintenance platform (2), when the maintenance device (1) is in the high position against the mast of the wind turbine (10a), and
    - in step f), said part of the material (lOc-lOe) of the wind turbine is transferred from said maintenance platform (2) to the deck of a ship, preferably the deck (100a) of said ship maintenance (100), using third gripping and transfer means (7), preferably a crane with
    5 articulated arms, placed on the deck of said vessel, and
    - In step g), said tracks are actuated in the relative release position in cross section in a horizontal plane perpendicular to the vertical longitudinal axis of the wind turbine mast, release position in which at least part of the runners is moved relative to others, for
    10 allow the maintenance device to be moved away from said mast.
    [15" id="c-fr-0015]
    15. Method according to claim 14, characterized in that said part of the material at the top of said wind turbine is chosen from a blade (10c), a mechanical part for actuating the blades in rotation such as a rotor (10d), an electric generator (10th) and nacelle (10b).
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    同族专利:
    公开号 | 公开日
    US20180347549A1|2018-12-06|
    CN108979980B|2021-03-05|
    CN108979980A|2018-12-11|
    US10487806B2|2019-11-26|
    FR3067017B1|2019-07-26|
    EP3409942A1|2018-12-05|
    TW201903282A|2019-01-16|
    DK3409942T3|2020-03-09|
    EP3409942B1|2019-12-04|
    TWI666381B|2019-07-21|
    引用文献:
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    CN103130106A|2011-12-02|2013-06-05|华锐风电科技股份有限公司|Lifting equipment|
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    EP3704015A4|2017-10-31|2021-07-28|UPY Designs LLC|Stabilizing system for floating wind turbines|JP6154921B1|2016-01-15|2017-06-28|日綜産業株式会社|Gondola for blade maintenance in wind power generators|
    US10767632B2|2016-09-09|2020-09-08|Siemens Gamesa Renewable Energy A/S|Transition piece for a wind turbine|
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    法律状态:
    2018-06-25| PLFP| Fee payment|Year of fee payment: 2 |
    2018-12-07| PLSC| Search report ready|Effective date: 20181207 |
    2019-06-25| PLFP| Fee payment|Year of fee payment: 3 |
    2020-06-25| PLFP| Fee payment|Year of fee payment: 4 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1754937|2017-06-02|
    FR1754937A|FR3067017B1|2017-06-02|2017-06-02|DEVICE AND MAINTENANCE VESSEL FOR OFFSHORE WIND TURBINES|FR1754937A| FR3067017B1|2017-06-02|2017-06-02|DEVICE AND MAINTENANCE VESSEL FOR OFFSHORE WIND TURBINES|
    TW107114808A| TWI666381B|2017-06-02|2018-05-02|A device and a ship for maintaining an offshore wind turbine|
    DK18174081.2T| DK3409942T3|2017-06-02|2018-05-24|EQUIPMENT AND BOAT FOR MAINTENANCE TO A OFFSHORE WINDMILL|
    EP18174081.2A| EP3409942B1|2017-06-02|2018-05-24|Maintenance device and vessel for offshore wind turbine|
    US15/996,085| US10487806B2|2017-06-02|2018-06-01|Device and a ship for maintaining an offshore wind turbine|
    CN201810562868.9A| CN108979980B|2017-06-02|2018-06-04|Maintenance device, maintenance vessel and method for maintaining an offshore wind turbine|
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