WO2004090263A1 - Method for generating a substantially uninterrupted connection of the peripheral wall portions of two adjacent tubular segments - Google Patents
Method for generating a substantially uninterrupted connection of the peripheral wall portions of two adjacent tubular segments Download PDFInfo
- Publication number
- WO2004090263A1 WO2004090263A1 PCT/EP2003/003681 EP0303681W WO2004090263A1 WO 2004090263 A1 WO2004090263 A1 WO 2004090263A1 EP 0303681 W EP0303681 W EP 0303681W WO 2004090263 A1 WO2004090263 A1 WO 2004090263A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tubular segments
- flanges
- notch
- wall portions
- peripheral wall
- Prior art date
Links
- 230000002093 peripheral effect Effects 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000005520 cutting process Methods 0.000 claims description 20
- 238000003801 milling Methods 0.000 claims description 8
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
- E04H12/085—Details of flanges for tubular masts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/34—Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
-
- 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
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- 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
-
- 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
- F05B2240/912—Mounting on supporting structures or systems on a stationary structure on a tower
-
- 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
- F05B2240/913—Mounting on supporting structures or systems on a stationary structure on a mast
-
- 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 to a method for generating a substantially uninterrupted connection of the peripheral wall portions of two adjacent tubular segments of a tower in particular for a wind energy turbine. This method applies both for new towers when erecting the same and for the repair of already built towers.
- Tubular towers of for example wind energy turbines or other devices, like towers for supporting buildings or carrying whatever apparatus comprise several adjacent tubular segments wherein two adjacent tubular segments are connected, respectively.
- the tubular segments are provided with cylindrical or conical peripheral wall portions and inner or outer flanges which normally are welded to the peripheral wall portions.
- Two adjacent tubular segments are contacting each other along annular contact surfaces defined by the flanges at the longitudinal ends of each of the tubular segments. Since the contact surfaces of the flanges are not completely arranged in one single radial plane, small gaps can exist between two adjacent flanges when the tubular segments are connected to each other by fastening bolts and extending through holes in the flanges.
- those gaps are disadvantageous in particular at that side of the tubular segments being opposite to the flanges. Accordingly, if the tubular segments are provided inner flanges, i.e. with flanges extending radially inwardly, gaps at the outside of the peripheral wall portions of the tubular segments have to be prevented. Namely, those gaps result in little movements of adjacent tubular segments relative to each other causing a fatigue of the material which the tubular segments is made of and release of the screws resulting in turn in an earlier fatigue of the bolts connecting adjacent segments.
- tubular segments provided with absolutely perfect flanges which results in an increase of manufacturing costs.
- insert elements of different thicknesses or several elements sandwiched have to be inserted at different locations of the gaps. This work is time consuming and cumbersome.
- Another object of the present invention is to provide a method for repairing a tower comprised of adjacent tubular segments such that the peripheral wall portions of two adjacent tubular segments, respectively, are substantially uninterruptedly connected.
- a method for generating a substantially uninterrupted connection of the peripheral wall portions of two adjacent tubular segments each provided with flanges having holes therein, of a tower, in particular for a wind energy turbine comprising the steps of arranging a first tubular segment and a second tubular segment with said flanges thereof facing each other and said holes in said flanges aligned with each other, connecting said tubular segments by prefastening screws extending through said aligned holes in said flanges, forming into the side of the tubular segments opposite to the flanges a notch of a predetermined width at least at a location of said contacting flanges where a gap having a width greater than a minimum width exists, inserting into said notch at least one insert part having a width substantially equal to the width of said notch, and - completely fastening said screws connecting said flanges of said tubular segments providing a substantially uninterrupted connection of said peripheral wall portions
- two adjacent tubular segments of a tower are connected to each other by screws extending through aligned holes in the flanges of the two adjacent tubular segments.
- the screws are prefastened, i.e. are not completely fastened.
- the screws after insertion are prefastened while when using the method for repairing an already built tower, the screws are released slightly.
- the interface between adjacent flanges i.e. the contact surfaces of the flanges at the side of the tubular segments opposite to the flanges are checked to determine locations at which gaps having a width greater than a minimum width exist.
- a notch, in particular a groove of a predetermined width, i.e. of a predetermined dimension in the longitudinal extension of the tubular segments is cut or formed in another way into the side of the tower opposite to the flanges.
- insert parts preferably plate-like insert parts, of elements having a width substantially equal to the width of the groove are inserted into the groove so that the latter is filled out between the side edges thereof.
- a coating can be applied to the inner surfaces and edges of the grooves for protecting the tubular segments against corrosion.
- the screws are completely fastened.
- the insert parts function as spacers fixedly clamped between adjacent tubular segments and in particular between the peripheral wall portions thereof thereby providing a substantially uninterrupted connection of the peripheral wall portions of the tubular segments which prevents any relative tilting movements of the adjacent tubular segments.
- the groove is completely filled with insert parts.
- the groove is provided with insert parts contacting the opposite edges of the groove wherein at both sides of an insert part a space can be provided.
- the insert parts need not necessarily extend from the outer surface of a wall portion up to the bottom of the groove.
- the insert parts should arranged within the groove such that parts thereof extend substantially at least up to the outer surface of the wall portions. Accordingly, the insert parts can project from or can be retracted with respect to the outer surface of the wall portions. However it is most preferred that the insert parts are aligned with the outer surface of the tower.
- the groove can be cut into merely one of the wall portions of the two adjacent tubular segments with the one side edge of the groove being located in the wall portion of one of the two tubular segments and the other side edge of the groove being defined by the contact surface of the flange of the other tubular segment.
- the groove comprises a depth which is substantially identical to a thickness of the wall portion of the tubular segments. If the thicknesses of the wall portions of two adjacent tubular segments are different which basically can be possible because the wall thicknesses of the upper segments of a tower are less than the wall thicknesses of the lower segments, the groove should have a depth substantially equal to the smaller thickness.
- the width and depth of a groove cut into at least one of the two tubular segments according to the invention depend on the overall sizes of the segments and the tower. Basically, these dimensions range from a few millimetres to a few centimetres in particular 1 or 2 centimetre.
- the groove as cut into at least one of the tubular segments according to the invention can be curved thereby following the curvature of the peripheral wall portions of the segments or can be straight which is preferred because of its easier manufacture.
- the orientation of the groove with respect to the peripheral wall portions is secantially.
- Such a groove has a varying depth over its longitudinal extension.
- cutting the groove is performed by a milling cutter tool.
- a milling cutter tool Such a tool can be guided along a guidance of a frame of a cutting device provided with the cutting tool.
- the cutting device has to be aligned relative to the tubular segments in order to cut a groove of desired shape and orientation.
- the present invention is described so far referring to embodiments in which a groove is cut into at least one of the tubular segments.
- the present invention in more general terms also applies for providing any kind of notch in at least one of the tubular segments as long as the opposite side edges of the notch are arranged in both of the tubular segments.
- a groove instead of a groove it is also possible to provide a bore into the tubular segments and to insert into such a bore a bolt-like insert part contacting the opposite side edges of the bore.
- Several such bore-like notches can be arranged along a gap existing between two adjacent tubular segments.
- Fig. 1 shows a side view of the interface of two adjacent tubular segments of a tower of a wind energy turbine with a small gap between the flanges of the two tubular segments
- Fig. 2 shows a cross sectional view taken along line II-II of Fig. 1,
- Fig. 3 shows a cross sectional view taken along line II-II of Fig. 1 after forming a groove at the location of the former gap
- Fig. 4 shows a cross sectional view taken along line IV-IV of Fig. 3 for showing the shape and extension of the groove
- Fig. 5 shows a cross section view similar to that of Fig. 3 wherein the groove is partially filled with an insert part and covered at its opening by a covering tape
- Fig. 6 shows a top view of a cutting device provided with a milling cutter for cutting a grooving into the outer surface of two adjacent tubular segments
- Fig. 7 shows a side view in the direction of arrow VII of Fig. 6.
- a wind energy turbine 10 comprises a tower 12 and a nacelle 14 supported on top of the tower 12 and provided with a rotor 16.
- the tower 12 comprises several tubular segments made of steel or other suitable materials as known to those skilled in the art.
- Each tubular segment 18,20 comprises a substantially cylindrical or conical peripheral wall portion 22,24 to the longitudinal ends of which an L- shaped flange 26,28 is attached by e.g. welding generating a welding seam 30,32.
- the flanges 26,28 extend radially inwardly so as to form inner flanges.
- the invention is not limited to tubular segments having inner flanges and, accordingly, also applies for tubular segments having their flanges extending radially outwardly (outer flanges).
- Each flange 26,28 is provided with a plurality of holes 34,36 through with clamping screws 38 for connecting the flanges of adjacent tubular segments 18,20 extend.
- Each screw 38 comprises a bolt 40 having a widened end as well as a threaded end, and a nut 42 engaged with the threaded end of the bolt 40.
- Other types of screws i.e. screws being in direct threading engagement with the flanges are also suitable.
- the flanges 26,28 of adjacent tubular segments 18,20 define outer contact surface 44,46 for contacting each other and along which the flanges 26,28 are pressed against each other when screwing the nuts 42 onto the bolts 40 of the screws 38.
- the contact surfaces 44,46 thereof have to be perfectly parallel.
- this is difficult to achieve when manufacturing flanges and the tubular segments 18,20 because due to e.g. the welding process, the flanges 26,28 will not be perfectly parallel along their entire contact surfaces 44,46. Accordingly, what happens in practice is that little slot-like gaps 48 exist when the tubular segments 18,20 are assembled.
- gaps 48 leads to interruptions at the outer side 50 of the outer wall of the tower 10 at the interfaces between two adjacent segments 18,20, respectively. Due to the gaps 48 rather little relative tilting movements between adjacent tubular segments 18,20 are possible which will cause mechanical stress to the flanges 26,28 and their connections to the peripheral wall portions 22,24 at the welding sides resulting in fatigue of the material.
- a gap 48 located in the wall of the tower at an interface of the flanges 26,28 of two adjacent tubular segments 18,20 is widened by cutting a predetermined groove 52 into the wall at the location of a gap 48.
- Such groove 52 is shown in Fig. 3 and is formed with the screws 38 not completely fastened but merely prefastened.
- the groove 52 comprises two opposite side surfaces 54,56 the distance therebetween defines the width of the groove 52, and a bottom surface 58 defining the depth of the groove 52.
- the width of the groove 52 extends along both wall portions 22,24 while the bottom surface can substantially be in alignment with the inner surfaces of the wall sections 22,24 of the tubular segments 18,20.
- the groove 52 is formed to the outer side 50 of the tubular segments 18,20 by means of an apparatus as described later in connection with Figures 6 and 7.
- the shape of the groove 52 and its orientation is shown in Fig. 4.
- the bottom surface 58 of the groove 52 extends secantially.
- At least one insert element 60 having a thickness substantially equal to the width prefabricated of the groove 52 is inserted therein.
- This insert part 60 contacts the opposite side walls 54,56 of the groove 52. Accordingly, the insert part 60 is clampingly engaged in the groove 52 and provides a press fit therein after the screws 38 are completely fastened i.e. are pulled completely tight. Thereafter, a covering tape 62 is attached to the outer side 50 of the wall portions 22,24 of the tubular segments 18,20. Since the groove 52, other than the gap 48, is formed so as to have a defined width and depth, the insert parts 60 in any event will fit into the groove avoiding manually selecting and trying different types of insert parts as in case of the prior art.
- the cutting device 64 is mounted at the outer side 50 of two adjacent tubular segments 18,20 by means of two upper magnetic fastening elements 66 and two lower magnetic fastening elements 68 all of which are connected to a frame 70 of the cutting device 64.
- the frame 70 is also secured by means of wires 72 of a winch (not shown) attached at the top of the tower 10 i.e. within the nacelle 14 and connected to hanger elements 74 which in turn are connected to the top portion of the frame 70.
- a winch (not shown) attached at the top of the tower 10 i.e. within the nacelle 14 and connected to hanger elements 74 which in turn are connected to the top portion of the frame 70.
- two guidance rollers 76 spacing and guiding the frame 70 at the outer surface of the tubular segments 18,20.
- a guidance 78 along which a tool support 80 for a milling cutter tool 82 is slidable.
- the milling cutter tool 82 can be driven by a drive unit 84 also supported by the tool support 80.
- the tool support 80 can slide in either direction of arrow 86 and can also be displaced radially inwardly and outwardly with respect to the tower 10 as shown by arrow 88.
- Installation and operation of the cutting tool 64 are as follows.
- the frame 70 is connected to the wires 72 via the two hanger elements 74 and is lifted up to the level where a gap has to be cut.
- the magnetic fastening element 66,68 are activated so that the cutting device 64 is fixedly mounted at the outer surface of the tubular segments 18,20.
- the whole frame 70 is adjusted by operating two adjustment wheels 90.
- the adjustment wheels 90 are connected to threaded rods 92 extending through the frame 70 and being in engagement with the hanger elements 74.
- By rotating the adjustment wheels 76 the position of the hanger elements 74 along the threaded rods 78 can be adjusted thereby aligning the frame 70 with respect to the tower and, accordingly, the milling cutter tool 82 with respect to the gap to be manufactured.
- orientation of the milling cutter tool can also be provided by adjusting the guidance 78 relative to the frame 70.
- groove 52 has to be elongated in or additional grooves 52 have to be formed at different locations along the circumferencial direction of the tower, after disabling the magnetic fasteners 66,68 the frame 70 is displaced in circumferencial direction. By this measures different portions of the groove 52 or different grooves can be formed in the tubular segments 18,20.
- the invention can be used for towers just build as well as for the repair of already existing towers.
- a groove is cut into the peripheral wall portions of two adjacent tubular segments.
- a groove instead of a groove also recesses or notches of a different shape than that of a groove can be cut into the tubular segments.
- cutting instead of cutting also other methods i.e. drilling for forming a recess or notch in the tubular segments are possible.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Sustainable Energy (AREA)
- General Engineering & Computer Science (AREA)
- Sustainable Development (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Wind Motors (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03722432A EP1616066B1 (en) | 2003-04-09 | 2003-04-09 | Method for generating a substantially uninterrupted connection of the peripheral wall portions of two adjacent tubular segments |
PCT/EP2003/003681 WO2004090263A1 (en) | 2003-04-09 | 2003-04-09 | Method for generating a substantially uninterrupted connection of the peripheral wall portions of two adjacent tubular segments |
DE60332054T DE60332054D1 (en) | 2003-04-09 | 2003-04-09 | METHOD FOR PRODUCING A NEARLY UNINTERRUPTED CONNECTION OF THE PERIPHERAL WALL PARTS OF TWO ADJUSTABLE PIPE SEGMENTS |
US10/517,585 US7665273B2 (en) | 2003-04-09 | 2003-04-09 | Method for generating a substantially uninterrupted connection of the peripheral wall portions of two adjacent tubular segments |
AU2003229631A AU2003229631B2 (en) | 2003-04-09 | 2003-04-09 | Method for generating a substantially uninterrupted connection of the peripheral wall portions of two adjacent tubular segments |
CA2487429A CA2487429C (en) | 2003-04-09 | 2003-04-09 | Method for generating a substantially uninterrupted connection of the peripheral wall portions of two adjacent tubular segments |
CNB038130939A CN100342104C (en) | 2003-04-09 | 2003-04-09 | Method for generating dubstantially uninterrupted connection of peripheral wall portions of two adjacent tubular segments |
ES03722432T ES2341766T3 (en) | 2003-04-09 | 2003-04-09 | PROCEDURE FOR GENERATING A SUBSTANTIALLY UNINTERRUPTED CONNECTION OF THE PERIPHERAL WALL PARTS OF TWO ADJACING TUBULAR SEGMENTS. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2003/003681 WO2004090263A1 (en) | 2003-04-09 | 2003-04-09 | Method for generating a substantially uninterrupted connection of the peripheral wall portions of two adjacent tubular segments |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004090263A1 true WO2004090263A1 (en) | 2004-10-21 |
Family
ID=33154985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/003681 WO2004090263A1 (en) | 2003-04-09 | 2003-04-09 | Method for generating a substantially uninterrupted connection of the peripheral wall portions of two adjacent tubular segments |
Country Status (8)
Country | Link |
---|---|
US (1) | US7665273B2 (en) |
EP (1) | EP1616066B1 (en) |
CN (1) | CN100342104C (en) |
AU (1) | AU2003229631B2 (en) |
CA (1) | CA2487429C (en) |
DE (1) | DE60332054D1 (en) |
ES (1) | ES2341766T3 (en) |
WO (1) | WO2004090263A1 (en) |
Cited By (8)
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WO2007059768A1 (en) * | 2005-11-24 | 2007-05-31 | Vestas Wind Systems A/S | A wind turbine tower, connection means for assembling a wind turbine tower and methods hereof |
EP2116675A2 (en) * | 2008-05-07 | 2009-11-11 | REpower Systems AG | Flange piece and tower for a wind farm |
EP2375057A1 (en) * | 2010-03-31 | 2011-10-12 | Siemens Aktiengesellschaft | Wind turbine installation |
EP2336551A3 (en) * | 2009-12-15 | 2014-04-30 | General Electric Company | Stress relief flange and method for distributing stress for wind turbine components |
EP2767654A1 (en) * | 2013-02-19 | 2014-08-20 | Siemens Aktiengesellschaft | Flange assistant for connecting adjacent tower sections |
EP2354379A3 (en) * | 2010-02-08 | 2015-07-15 | Zeppelin Silos & Systems GmbH | Container with flange connection and welded inner seam, in particular silo |
DE102015110344A1 (en) * | 2015-06-26 | 2016-12-29 | Eno Energy Systems Gmbh | Section of a tower section, a tower and a method of making a section of a tower section |
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US8322757B2 (en) * | 2007-01-26 | 2012-12-04 | Inner Mongolia Golden Ocean New Energy Technology Corporation Co., Ltd. | Coupling flange assembly for connecting steel pipes |
US20100101173A1 (en) * | 2008-01-04 | 2010-04-29 | General Electric Company | Wind turbine tower joints |
WO2009132659A2 (en) * | 2008-05-02 | 2009-11-05 | Vestas Wind Systems A/S | Tower section for a wind turbine tower |
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ES2386519T3 (en) * | 2008-11-27 | 2012-08-22 | Vestas Wind Systems A/S | Tower for a wind turbine and method to mount the tower |
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JP5667822B2 (en) * | 2010-09-21 | 2015-02-12 | 株式会社日立製作所 | Parts mounting structure in the windmill tower |
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DE102016114114A1 (en) * | 2016-07-29 | 2018-02-01 | Wobben Properties Gmbh | Connecting element for connecting tower sections, tower section, tower, wind turbine and method for producing a tower section and for connecting tower sections |
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WO2018139929A1 (en) * | 2017-01-27 | 2018-08-02 | Fistuca B.V. | Assembly comprising a first and a second section and a fixation |
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- 2003-04-09 ES ES03722432T patent/ES2341766T3/en not_active Expired - Lifetime
- 2003-04-09 AU AU2003229631A patent/AU2003229631B2/en not_active Ceased
- 2003-04-09 CA CA2487429A patent/CA2487429C/en not_active Expired - Fee Related
- 2003-04-09 DE DE60332054T patent/DE60332054D1/en not_active Expired - Lifetime
- 2003-04-09 WO PCT/EP2003/003681 patent/WO2004090263A1/en not_active Application Discontinuation
- 2003-04-09 US US10/517,585 patent/US7665273B2/en not_active Expired - Fee Related
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Cited By (18)
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WO2007059768A1 (en) * | 2005-11-24 | 2007-05-31 | Vestas Wind Systems A/S | A wind turbine tower, connection means for assembling a wind turbine tower and methods hereof |
US8225576B2 (en) | 2005-11-24 | 2012-07-24 | Vestas Wind Systems A/S | Wind turbine tower, connection means for assembling a wind turbine tower and methods thereof |
EP2116675A2 (en) * | 2008-05-07 | 2009-11-11 | REpower Systems AG | Flange piece and tower for a wind farm |
EP2116675A3 (en) * | 2008-05-07 | 2011-04-20 | REpower Systems AG | Flange piece and tower for a wind farm |
EP2336551A3 (en) * | 2009-12-15 | 2014-04-30 | General Electric Company | Stress relief flange and method for distributing stress for wind turbine components |
EP2354379A3 (en) * | 2010-02-08 | 2015-07-15 | Zeppelin Silos & Systems GmbH | Container with flange connection and welded inner seam, in particular silo |
US8402718B2 (en) | 2010-03-31 | 2013-03-26 | Siemens Aktiengesellschaft | Wind turbine installation |
EP2375057A1 (en) * | 2010-03-31 | 2011-10-12 | Siemens Aktiengesellschaft | Wind turbine installation |
EP2674620B1 (en) | 2012-06-15 | 2017-11-15 | Siegthalerfabrik GmbH | Flange portion for a tower of a wind power system |
EP2767654A1 (en) * | 2013-02-19 | 2014-08-20 | Siemens Aktiengesellschaft | Flange assistant for connecting adjacent tower sections |
DE102015110344A1 (en) * | 2015-06-26 | 2016-12-29 | Eno Energy Systems Gmbh | Section of a tower section, a tower and a method of making a section of a tower section |
WO2016207322A1 (en) * | 2015-06-26 | 2016-12-29 | Eno Energy Systems Gmbh | Tower consisting of segments and a method for producing a segment of a tower |
CN108138509A (en) * | 2015-06-26 | 2018-06-08 | 伊诺能源系统公司 | The tower being made of subsegment and the method for manufacturing the subsegment of tower |
EP3508669A1 (en) * | 2015-06-26 | 2019-07-10 | eno energy systems GmbH | Part of a tower section, a tower and a method for producing a part of a tower section |
US10641000B2 (en) | 2015-06-26 | 2020-05-05 | Eno Energy Systems Gmbh | Subsection of a tower section, a tower and a method for manufacturing a subsection of a tower section |
EP3314076B1 (en) | 2015-06-26 | 2020-09-02 | eno energy systems GmbH | Tower consisting of segments and method for producing a segment of a tower |
CN108138509B (en) * | 2015-06-26 | 2020-10-16 | 伊诺能源系统公司 | Tower formed from subsections and method for producing subsections of a tower |
EP3760815A1 (en) * | 2015-06-26 | 2021-01-06 | eno energy systems GmbH | Method for producing a part of a tower section |
Also Published As
Publication number | Publication date |
---|---|
US20060123735A1 (en) | 2006-06-15 |
CA2487429A1 (en) | 2004-10-21 |
CN1659348A (en) | 2005-08-24 |
AU2003229631B2 (en) | 2009-04-30 |
CN100342104C (en) | 2007-10-10 |
EP1616066A1 (en) | 2006-01-18 |
AU2003229631A1 (en) | 2004-11-01 |
EP1616066B1 (en) | 2010-04-07 |
US7665273B2 (en) | 2010-02-23 |
DE60332054D1 (en) | 2010-05-20 |
CA2487429C (en) | 2010-11-09 |
ES2341766T3 (en) | 2010-06-28 |
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