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
  • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02B—HYDRAULIC ENGINEERING
  • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
  • E02B17/0004—Nodal points
• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02B—HYDRAULIC ENGINEERING
  • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
  • E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
  • E02B17/027—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto steel structures
• • 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
• • 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
  • E04H12/10—Truss-like structures
• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02B—HYDRAULIC ENGINEERING
  • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
  • E02B2017/0091—Offshore structures for wind turbines
• • 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
  • E04H2012/006—Structures with truss-like sections combined with tubular-like sections
• • 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
  • F05B2230/30—Manufacture with deposition of material
• • 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
  • F05B2240/9121—Mounting on supporting structures or systems on a stationary structure on a tower on a lattice 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 invention relates to a tower for a wind turbine with an upper
• the invention also relates to a wind turbine.
• Wind power plant can be improved, especially in low wind areas.
• Bridge clearance heights is no longer possible if the dimensions of the individual tower segments increase due to higher towers.
• the invention is based on the object
• the object is achieved according to a first teaching of the present invention in a generic tower for a wind turbine, characterized in that the lower tower section comprises a centrally disposed within the lattice mast center tube, wherein the center tube at least partially has a smaller diameter than at least a portion of the tube tower of the upper tower section.
• the lower tower section comprises a lattice mast
• high hub heights beyond 100 m can initially be achieved.
• a central tube is provided within the lattice mast, which at least
• the invention combines the advantages of a grid construction and a tubular tower in the lower tower section, without, however, having to accept the respective disadvantages.
• the central tube of the lower tower section preferably has a smaller diameter over substantially its entire length than at least one part of the tubular tower, for example as at least the lower part or also as the entire tubular tower.
• the central tube of the lower tower section is preferably in extension of the
• Pipe tower of the upper tower section arranged.
• the longitudinal axes of the central tube and the tubular tower are preferably on each other.
• the tower is preferably designed for a hub height of more than 100m. At such heights, the properties of a tower according to the invention, that is to say an improved ergonomics and an improved force flow, are particularly advantageous.
• the upper tower section having the tubular tower is preferably free of a lattice mast surrounding the tubular tower. It has been found that sufficient stability can be achieved in the upper tower section without an additional grid structure surrounding the tubular tower.
• the central tube is designed in particular as a hollow profile.
• the center tube is preferably built in sheet metal construction. This allows optimum adaptation and a cost-effective and lightweight compared to, for example, castings. Individual parts of the central tube can in particular be welded together.
• the tower further comprises a transition piece between the upper and the lower tower section and preferably the tube tower of the upper tower section and the central tube of the lower tower section are connected to each other via the transition piece.
• the transition piece can initially serve to connect the pipe tower and center pipe. At the same time, the transition piece can also serve to connect the lattice mast to the tubular tower of the upper tower section. As a result, the transition piece can therefore also for
• the transition piece preferably has connection areas for the tubular tower, the central tube and the lattice mast.
• the transition piece thus represents in particular a kind of central node.
• transition piece or parts thereof, integrally with the tubular tower, the central tube and / or the transition piece. This is preferred
• Transition piece designed as a separate component, which is connected to the other elements, in particular welded and / or screwed.
• the transition piece is preferably built in sheet metal construction. As already
• this allows on the one hand a flexible production and compared to for example castings cost-effective and lightweight construction. Individual sheet metal parts can then be joined to the transition piece by welding.
• the central tube of the lower tower section is connected at its lower end to a foundation of the tower and at its upper end to the transition piece.
• the center tube to an improved power flow and contribute to the relief of the lattice mast.
• accessibility for personnel from the ground up to the upper tower section can be simplified.
• the central tube of the lower tower section for receiving forces from the upper tower section, in particular for receiving torsional forces is formed.
• an optimized force flow or an optimized load distribution can be achieved hereby, since the center tube assumes a structural support component and in particular the lattice mast, in particular its corner stems, is relieved of load. Which forces can take up which height the central tube can be adjusted in particular by the wall thickness and the diameter.
• Lattice mast of the lower tower section at least three, preferably exactly three corner handles. It has been found that the design of the lattice mast with, in particular, three corner stems enables a simple and scalable construction by means of standard profiles with simultaneously high stability. In the case of three corner stems, the base area or cross-sectional area of the lattice mast correspondingly forms a triangular area. However, the lattice mast can also be designed with a higher number of corner stems, for example, four or five corner stems can be provided. The base area or cross-sectional area is then a corresponding polygon. The number of corner handles can be made particularly dependent on the hub height, the power and the weight to be carried by the tower.
• the corner handles consist for example of individual Eckstielsegmenten, for example, tubular hollow sections.
• several hollow profiles can form a corner post.
• the individual hollow profiles can be connected to one another in their end regions, for example by means of screws.
• Run between the corner stems preferably transverse and / or diagonal struts, which connect adjacent corner stems with each other.
• the diameter of the central tube is at least partially at least Im, preferably at least 1.5m, and / or at most 4m, preferably at most 3.5m, more preferably at most 1.8m.
• the middle tube can absorb forces (in particular torsional forces) in a particularly effective manner and relieve the load on the lattice mast.
• the central tube can accommodate even larger components, such as a transformer unit.
• the lower tower section is formed free of load-bearing connections between the lattice mast and the central tube. This is especially true for connections between corner posts of the lattice mast and the center tube. That is, there are either no connections between the central tube on the one hand and the lattice tower tower (or its Eckstielen) on the other hand provided or at least no load-bearing connections. That is, in the latter case, but that, for example, non-supporting struts or webs can be provided. These can further increase the accessibility of the tower for staff
• the lower tower section in or on the central tube comprises access means, in particular an elevator, a ladder and / or mounting platforms, and / or electrical components, in particular lines and / or electrical components.
• the central tube can be used in particular as a dwelling or enclosure for such facilities or Serve components. In this way, a simple and secure accessibility for personnel and / or secure housing for corresponding components is achieved practically independent of the design of the tower in the lower tower section, so in particular even if a grid structure is provided.
• the central tube comprises one or more passages, wherein in particular at least part of the passages are connected via non-load-bearing connections to the lattice mast, in particular corner posts of the lattice mast.
• the transition of the diameter of the tube tower of the upper tower section to the central tube of the lower tower section in a transition region is continuous and / or stepped.
• the transition region can be formed for example by the central tube.
• the transition region is then preferably at the upper end of the central tube.
• the transition region is at least partially formed by the transition piece.
• the transition piece in
• the central tube has a substantially constant diameter at the upper end, so that the transition takes place in steps.
• the central tube has a conical section with a continuously increasing diameter in the direction of the upper tower section. The diameter increases, for example, up to the diameter of the
• Tube tower or transition piece Tube tower or transition piece.
• the lower tower section has a height of at least 60m, preferably at least 80m, and / or a height of at most 140m.
• a preferred range of the height of the lower tower section is, for example, 80m to 100m. However, to achieve high hub heights of about 200 m, a preferred range of 120 m to 140 m may be provided for the height of the lower tower section.
• Middle tube advantageous in terms of increased ergonomics and safety and a possible relief of the lattice tower are.
• Lattice mast of the lower tower section grid elements which are at least partially connected by connecting elements, in particular screws, preferably HV screws or bolts, preferably locking ring bolts.
• connecting elements in particular screws, preferably HV screws or bolts, preferably locking ring bolts.
• Such grid elements are, for example, corner handles,
• the central tube is at least partially spirally welded and / or longitudinally welded.
• Spirally welded pipes can be economically produced by a quasi-continuous process.
• longitudinally welded pipes especially larger wall thicknesses and diameters can be processed and high stability can be achieved.
• the tubular tower of the upper tower section is formed in a transversely oriented construction. Since the tube tower begins only in the upper tower section and does not have to extend from the ground to the total height of the tower, the tube tower can be a correspondingly small
• transverse-oriented design can be provided without this would affect the transport.
• a transverse-oriented design is to be understood in particular as meaning that the tower is constructed of elements running transversely to the tower path (longitudinal direction).
• a wind turbine with a tower according to the invention.
• a wind turbine includes in particular a mounted on the tower
• Engine house also called nacelle
• a rotor with rotor blades For this purpose, the tubular tower of the upper tower section at the upper ends of an adapted
• Fig. Lb is a cross-section of the embodiment of Fig. La;
• Fig. 3a is a perspective view of part of another
• FIG. 3b, c enlarged partial sections of Fig. 3a.
• Fig. La shows a longitudinal section of a first embodiment of a
• Fig. lb is a cross section of the
• the tower 1 is part of a wind turbine with gondola and rotor (not shown).
• the tower 1 has an upper tower section 2 and a lower tower section 4.
• the upper tower section 2 comprises a tubular tower 6.
• the lower tower section 4 comprises a lattice mast 8 and a central tube 10, which is centrally located within the
• Grid mast 8 is arranged.
• the central tube 10 has a smaller diameter throughout than the tube tower 6 of the upper tower section 2.
• the tower 1 further comprises a transition piece 12, via which the lattice mast 8, the central tube 10 and the tube tower 6 are interconnected.
• the central tube 10 is connected at its lower end to a foundation (not shown) of the tower 1 and at its upper end to the transition piece 12.
• the central tube 10 of the lower tower section 4 is formed due to the wall thickness and the diameter for receiving forces from the upper tower section 2. As a result, the central tube 10 relieves the lattice mast 8. In addition, the central tube 8 in this case represents a dwelling for a ladder.
• the lattice mast 8 of the lower tower section 4 here has three corner posts, two of which corner posts 14 can be seen in Fig. La.
• the lattice mast also has transverse struts and / or diagonal struts 16, which are arranged between the corner posts 14.
• the lower tower section 4 is formed free of load-bearing connections between the lattice mast 8 and the central tube 10.
• Fig. 2a-c shows various variants of the transition region from the central tube 10 to the transition piece 12.
• Fig. 2a shows as already shown in Fig. La a
• Fig. 2b shows a combined
• Fig. 2c finally shows a continuous transition without step.
• the central tube 10 has an increasing diameter at its upper end.
• Fig. 3a shows a perspective view of part of another
• Embodiment of a tower according to the invention The structure essentially corresponds to that already described in connection with FIG.
• the central tube 10 'of the tower shown in detail in FIG. 3a has a plurality of passages 18', the passages being connected in part via non-load-bearing connecting webs 20 'to the lattice mast 8' and here in particular to the corner pillars 14 'of the lattice mast 8' ,
• mounting platforms 22 ' are provided both on the central tube 10' and on the corner posts 14 '.
• FIG. 3b shows an enlarged (semi-transparent) view of the access passage 18 'in the lower region of the central tube 10'. It will be appreciated that a conductor 24 'and an electrical component, eg, a service lift 26' can be accommodated in the central tube 10 '.
• Fig. 3c also shows an enlarged view of the mounting platform 22 'at the corner post 14'. It will be appreciated that HV screw connections can be used to connect the individual struts 16 'of the lattice mast 8' to the corner stalk 14 '. Due to the central tube 10 'and the connecting webs 20', these connection areas can be achieved with high ergonomics and occupational safety.

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

Applications Claiming Priority (2)

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• 2015
  • 2015-09-16 DE DE102015115634.2A patent/DE102015115634A1/de not_active Withdrawn
• 2016
  • 2016-09-08 CA CA2996021A patent/CA2996021C/en not_active Expired - Fee Related
  • 2016-09-08 WO PCT/EP2016/071186 patent/WO2017045993A1/de active Application Filing
  • 2016-09-08 CN CN201680054107.1A patent/CN108026899B/zh not_active Expired - Fee Related
  • 2016-09-08 US US15/760,304 patent/US10330085B2/en not_active Expired - Fee Related
  • 2016-09-08 EP EP16762821.3A patent/EP3350438A1/de not_active Withdrawn

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