CN101338726A - Low cost rail-transportable wind turbine tower - Google Patents
Low cost rail-transportable wind turbine tower Download PDFInfo
- Publication number
- CN101338726A CN101338726A CNA2008100909339A CN200810090933A CN101338726A CN 101338726 A CN101338726 A CN 101338726A CN A2008100909339 A CNA2008100909339 A CN A2008100909339A CN 200810090933 A CN200810090933 A CN 200810090933A CN 101338726 A CN101338726 A CN 101338726A
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- Prior art keywords
- reinforcing portion
- wind turbine
- corner reinforcing
- turbine tower
- main structure
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Classifications
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- 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
- F03D13/22—Foundations specially adapted for wind motors
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- 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
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- 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
- F03D13/40—Arrangements or methods specially adapted for transporting wind motor components
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/80—Arrangement of components within nacelles or towers
- F03D80/82—Arrangement of components within nacelles or towers of electrical components
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- 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
- F05B2230/50—Building or constructing in particular ways
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- 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
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- 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
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- 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
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- 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
Abstract
A wind turbine tower (100) is provided that will accommodate low cost rail transport of wind turbine sections. The wind turbine tower includes a plurality of axial tubular sections (110, 120, 130), wherein the sections including an outer diameter (160) no greater than a designated maximum diameter; a main structural element (135) for each of the axial tubular sections, with the structural element being of a generally cylindrical shape; and corner reinforcements (150) for the main structural elements. The corner reinforcements (150) are provided generally equidistant around the circumference of the main structural element about 90 degrees apart. Corner supports may further be provided to support the corner reinforcements from a foundation of the wind turbine tower. With the corner reinforcements (150) attached to the main structural elements (135), the combination falls within a space envelope that may be accommodated for rail transport.
Description
Technical field
The present invention relates generally to the structure of wind turbine tower, and relate more particularly to the construction method of wind-force pylon and it that this method allows to be used for the low-cost rail transport of portion's section of large-scale pylon.In addition, it allows existing pylon upgrading, can handle bigger turbo machine.
Background technique
For many years, what become convention is to build steel wind-force pylon portion section on the equipment of workshop respectively, and then that each is complete portion's section moves to specified position, carries out the installation of wind turbine tower in this position.Pylon portion section typically has the cylinder or the shape of taper a little, and in portion's section each is divided into the shell of enough numbers successively along axis.
Because the demand of larger capacity pylon is constantly increased and therefore builds the large-size of all required parts of this pylon, thus the physical limitation that applied by Infrastructure has appearred, such as the space under bridge or in the tunnel.
Wind load with wind speed square and increase, therefore and the turbo machine pylon is high more, the size of structure will be strong more, this means again or wall thickness will be increased or diameter with extended.Increasing tower diameter can be more favourable than the thickness that increases steel plate or other wall material.When under bridge by and pass the tunnel and make diameter need enough little so that when limiting the height of vehicle, the thickness of increase will mean higher cost of material and for heavier haulage vehicle, perhaps the demand of truck, train, steamer or helicopter.And thicker steel billet is difficult to form and processing.
For allow than the transportation of large-diameter portion section with support to have big maximum load than high tower, what proposed is pylon portion section along the vertical line that forms two semicolumn shells rived (WO 2004/083633 of Jensen).The size of semicolumn shell is consistent with the overall dimensions that is used to transport.Bolted flange is provided along the axial direction of semicolumn shell, allows to assemble at the scene after the transportation.Yet, because disadvantageous landform and rigorous environment condition, hope be to be limited in on-the-spot assembling.Further, the generation of extra junction point makes pylon stand extra failure mode potentially.
Figure 1A and Figure 1B illustrate the obtainable maximum space envelope with truck and rail transport in the U.S. respectively.Rail transport is least expensive types of transportation for large-scale pylon portion section.Exemplary 80 meters pylon comprises 3 pylon portion sections of the diameter and the thickness of variation.This bottom and middle part pylon portion section have 14.11 feet maximum diameter.This top section has 11.5 feet maximum diameter.The space envelope 10 that is used for by truck transport is about 14+ feet, and therefore allowing approximately, the tubular sections 20 of this diameter is assemblied in the space envelope.Be used for reaching about 11 feet to 13 feet by the space envelope 40 of rail transport on a side, therefore allowing to reach approximately, the tubular sections 50 of this diameter is assemblied in the space envelope.Therefore, this top section is passed through rail transport.This bottom and middle part pylon portion section have surpassed the track envelope.Bottom and middle part pylon portion section must be transported by truck, and general size is in the transported on trucks envelope of about 14+ foot.Truck beyond the U.S. also is subjected to the similar restriction to the space envelope consideration with rail transport, but size is specific to the scene.
Therefore because the low cost of rail transport, so be used to transport the cost of top section be used to transport bottom and middle part pylon portion section cost about 50%.
Thereby, need be provided for the structure of all pylon portion sections of larger wind turbines pylon, the diameter of its middle part drops in the diameter of maximum rail transport, but it still has enough intensity, to bear the load that is applied on portion's section.
Summary of the invention
The present invention relates to a kind of pylon portion section that is used for dropping on by structure the permission space envelope that is used for rail transport allows portion's section of larger wind turbines pylon to be transported to the equipment and the method for wind field (windfarm) position by rail transport.In addition, it allows existing pylon upgrading, can handle big turbo machine.
Briefly, according to an aspect of the present invention, wind turbine tower is provided, and it will be adapted to the rail transport of wind turbine portion section.Wind turbine tower comprises a plurality of axial tubular portion section, and its middle part comprises the external diameter of the maximum diameter that is not more than appointment; Be used for each main structure element of axial part section, wherein structural element is cylindrical shape generally; With the corner reinforcing portion that is used for the main structure element.The corner reinforcing portion equidistantly is separated around the circumference setting of main structure element and in about 90 modes of spending generally.
According to another aspect of the present invention, back-up system is provided for the wind turbine tower of first front construction, and this pylon comprises having each a plurality of axial tubular portion section of main structure element that is used for the axial part section, and structural element is cylindrical shape generally.Back-up system comprises that the corner reinforcing portion is to be used at least one main structure element of a plurality of axial tubular portion section.The corner reinforcing portion is generally equidistantly around the circumference setting of the internal surface of main structure element or the main structure element on the outer surface, and the corner reinforcing portion can be included in the maximum sized envelope that is adapted to rail transport on the side further.Yet, consider in the open space that is assembled in the corner of transporting envelope that do not need to be restricted in size so be used for the corner reinforcing portion of repairing, renovation or upgrading on existing pylon, this is because their main grounds on the scene are assembled.
Provide a kind of wind turbine tower that is used to provide structural support to be assembled in the method for the design space envelope that is used for rail transport to allow pylon portion section.This method comprises provides a plurality of axial tubular portion section, and its middle part comprises the external diameter of the maximum diameter that is not more than appointment; Shaping is used for each main structure element of a plurality of axial tubular portion section, and it is cylindrical shape generally; Be formed for linking the corner reinforcing portion at least one the main structure element that is used for a plurality of axial tubular portion section, be used on a side, being adapted to the space envelope of the combination that is not more than specified size of rail transport with foundation; With connect at least one the corner reinforcing portion that is used for the main structure element.The corner reinforcing portion is equidistantly connected around the circumference of main structure element at each edge.Further, this method comprise when the corner reinforcing portion extend to tubulose axial part section in abutting connection with the end time, connect the corner reinforcing portion in abutting connection with the end.The corner reinforcing portion can or on the outside of main structure element or on the inboard.Consider in the open space that is assembled in the corner of transporting envelope that do not need to be restricted in size so be used for the corner reinforcing portion of repairing, renovation or upgrading on existing pylon, this is because their main grounds on the scene are assembled.
Description of drawings
When reading the following detailed description with reference to the accompanying drawings, these and other feature, aspect and advantage of the present invention will become better understood, and similar label is represented similar parts in whole accompanying drawing, wherein:
Figure 1A and Figure 1B illustrate the maximum obtainable space envelope that is used to transport in the U.S.;
Fig. 2 illustrates the invention wind turbine tower of demonstration;
Fig. 3 A and Fig. 3 B illustrate exemplary pylon portion section, and the corner reinforcing portion is wherein arranged in the corner;
Fig. 4 A illustrates the exemplary arrangements of the internal reinforcement that is used for wind turbine tower;
Fig. 4 B illustrates the externally reinforced exemplary arrangements that is used for wind turbine tower during repairing, renovation or upgrading, and it does not need to be limited in being used for the space envelope of rail transport;
Fig. 5 illustrates the exemplary arrangements of the corner support part that is used for wind turbine tower; With
Fig. 6 illustrates the rail transport that is used for isometric pylon main structure element.
List of parts:
10 transported on trucks space envelope
20 pylon tubular sections
Space, 30 corner
40 tracks transport space envelope
50 pylon tubular sections
Space, 60 corner
100 wind turbine towers
110 top section
120 middle part pylon portion sections
130 base portion sections
135 main structure elements
140 cylinder wall thickness
The length of 145 main structure elements
150 corner reinforcing portion
155 links
The external diameter of 160 pylon portion sections
165 tubulose axial part sections in abutting connection with the end
The bottom of 170 corner support parts
175 grounds
The outer surface of 180 main structure elements
The internal surface of 185 main structure elements
190 corner support parts
The connection end of 191 corner support parts
The support end of 192 corner support parts
193 pile foundations
194 main grounds
195 space envelope
Overall dimensions on 197 1 sides
310 rail transport envelopes
Space, 320 corner
330v shape corner reinforcing portion
Space, 340 corner
350 main structure elements
360 railway transport space envelope
Cavity in the 370v shape
Cavity in the 380h shape
410 outside corner reinforcing portion
420 inner corner reinforcing portion
430 rail transport space envelope
610 locomotives
The 620-640 tram car
650 are used for the main structure element of top section
660 are used for the main structure element of middle part pylon and base portion section
670 railway transport base portion sections
The length of 680 main structure elements
Embodiment
The following example of the present invention has many advantages, comprises allowing to have the previous required large diameter wind turbine tower that is used for structural integrity in conjunction with the diameter reduction that drops on the permission space envelope that is used for rail transport.The structural integrity that is used for axial tubular portion section can be provided by the corner reinforcing portion, is assemblied in the obtainable space around tubular sections, but is being used for the space envelope of rail transport.The further support that is used for pylon structure can be provided by corner support part, is linked on the reinforcing portion of corner and at quilt on the opposed end on an end and is being linked on the ground.When repairing, upgrading or renovating, the structural integrity that is used for existing wind turbine tower also can be enhanced by corner reinforcing portion and the corner support part that increases.
Fig. 2 illustrates the invention wind turbine tower of demonstration.Combine wind turbine tower 100 of the present invention and can comprise a plurality of axial tubular portion section.Although present invention can be applied on the wind turbine tower of portion's section with less or a greater number, in exemplary wind turbine tower, three axial tubular portion sections: top section 110, middle part pylon portion section 120 and base portion section 130.Although can be combined with small taper, this pylon is cylindrical shape generally.The external diameter 160 of pylon portion section is not more than the maximum diameter of appointment, and it is defined by the maximum space envelope that is used for rail transport.Yet in the preferred embodiment of the invention, each axial tubular portion section can comprise having the main structure element 135 of cylindrical shape generally, comprises consistent cross section.Each the main structure element 135 that is used for axial tubular portion section also can comprise consistent wall thickness 140.In order further to strengthen transportation property, the axial length 145 that pylon portion section equates.
Can strengthen main structure element 135 at edge by corner reinforcing portion 150.The corner reinforcing portion generally medially in about 90 degree mode separately equidistantly around the circumference setting of main structure element.The corner reinforcing portion can be preferably rolling or the structure material of pressed-steel board section, but also can comprise other material of the support that equal intensities is provided.Typically, corner reinforcing portion 150 is linked on the main structure element 135 by welding or other suitable interconnection technique in manufactory, to avoid causing the difficult welding or the extra work that set up the place, place at weather and landform.The perhaps length of at least one in a plurality of axial tubular portion section fully or partly, corner reinforcing portion 150 can axially be extended.At this, corner reinforcing portion 150 is illustrated as fully extends along the length 145 of main structure element 135.If corner reinforcing portion 150 be applied on the main structure element 135 with the axial tubular portion section that is used for adjacency (such as, base portion section 130 and middle part pylon portion section 120) and axially extend further generally with 165 places in abutting connection with the end in axial tubular portion section and meet, corner reinforcing portion 150 structurally is connected on the adjacent end 165 so.Corner reinforcing portion 150 can be connected by bolt connection piece 155 or by other package technique as known in the art.Further, when corner reinforcing portion 150 was provided at least base portion section 130, the bottom 170 that is used for the corner reinforcing portion 150 of base portion section can be linked thought on the ground 175 that structure provides extra intensity.The exemplary corner reinforcing portion 150 of Fig. 2 is illustrated as along its length has consistent generally cross section 198.Yet taper corner reinforcing portion 150 can alternatively be provided (figure do not show), wherein the cross section of corner reinforcing portion 150 or thickness at the place, bottom that reinforces greater than at the place, top that reinforces or for the base portion section greater than for middle part pylon portion section.
Refer again to Figure 1A, when the structural element 20 of cylindrical shape takes up space, when wherein external diameter equaled the side of square space envelope 10 on length, about 21.5% of space envelope 10 was not used in corner 30 and therefore has been wasted.
Fig. 3 A and Fig. 3 B illustrate the exemplary design that is used for the corner reinforcing portion, have used obtainable " space, corner " in the space envelope that is used for rail transport.The various structures of corner reinforcing portion can be used to strengthening structure.The corner reinforcing portion must have a certain size to be assemblied in the space, corner 320.In structure, V-arrangement corner reinforcing portion 330 or H shape corner reinforcing portion 340 can be provided at corner areas 320 each sentence and be used for strengthening.Other sectional shape also is possible (except V or H).No matter all should occupying to be not more than, what shape, the main structure element 350 that has been mounted corner reinforcing portion (320,330) specify maximum sized space envelope on a side 365.Further, it must be sufficiently little of to be adapted to rail transport all being not more than maximum sized space envelope 360 on each side.For the U.S., the overall dimensions that can be adapted to rail transport is about 11 feet to 13 feet on a side.For international rail transport, the overall dimensions side that can be adapted to rail transport can change with the zone.Further, being used for the two permission space envelope of the U.S. and international zone can change in the future.Scope of the present invention can be at all these in the regional change on the maximum side size with revise and can be in the change on these sizes that take place in the future.
When the axial length along the main structure element is connected, V-arrangement that is used for the corner reinforcing portion of Miao Shuing and H shape and other structure can define cavity or space 370 closed or semi-closed in the above, 380, the complete length of its extensible single pylon portion section or even may extend into the peak place of top section.These cavitys can be applied to pylon, up to continuous electric wire, hydraulic line and the service line of engine compartment.
On the outer surface 180 or internal surface 185 of linking main structure element 135, corner reinforcing portion 150 can be provided.Preferably corner reinforcing portion 150 is linked on the outer surface 180 of main structure element 135, this is because the maximization of this layout is used for the rotary inertia of pylon.By corner reinforcing portion 150 being placed on the further advantage that is provided on the outer surface of main structure element 135 is to minimize rigging (rigging) and packing when transporting.The large-scale main structure element 135 of Shu Liing is columniform and has the trend of rolling alone.The corner reinforcing portion is used as anti-tourelle and has considered by this feature and will be easy to pylon portion section is anchored on the rail bed.
Fig. 4 A illustrates the layout of the internal reinforcement that is used for pylon structure.When other considered to make that placement is undesirable on the outer surface or impossible, the layout of this corner reinforcing portion 150 on the surface, inside 185 of main structure element 135 can be implemented.For example, corner reinforcing portion 150 is linked on the outside of pylon and can be reduced graceful smooth-shaped and the aesthetic appearance that belongs to wind turbine tower, may make that it more is difficult to obtain the public's acceptance for the position, place.And (with reference to figure 2), for top section 110 and middle part pylon portion section 120, outside corner reinforcing portion 150 can be disturbed the rotation of wind turbine blade potentially.Inter alia, for those reasons, will be necessary corner reinforcing portion internal application to the main structure element.
Except reinforcement is provided by the corner reinforcing portion, for further support is provided, can provide corner support part for pylon.Corner support part can comprise rolling or press members.Rolling or press members can be made of the material of Plate Steel or other equal intensities.Refer again to Fig. 2, corner support part 190 can be linked on the corner reinforcing portion 150 by bolt or other mode as known in the art at connection 191 places, end.Base portion section 130 stands maximum load force, so preferably further support pylon by corner support part 190 usually for base portion section 130.The support end 192 of corner support part 190 can be fixed on the ground 175.Yet, when the corner reinforcing portion is provided on the higher part section, with corner support part be applied to pylon more than being possible on one the axial tubular portion section (figure does not show).
Fig. 5 illustrates the corner support part structure that is used for wind turbine tower.At this, corner reinforcing portion 151 is provided, and reinforces 152 and is provided to be used for middle part pylon portion section 120 to be used for base portion section 130 and middle part pylon portion section.Corner support part 190 can be provided, to be used for each corner reinforcing portion of base portion section 130.The connection end 191 of corner support part 190 is connected at the upper end of the corner reinforcing portion 151 that is used for base portion section 130.The support end 192 of corner support part 190 is anchored at the ground 175 that is used for pylon structure.Be used for grappling ground 175 can or the new ground of installing 193 such as pile foundation, or existing ground is such as the main ground 194 that is used for pylon.
Back-up system can further be provided to be used for upgrading, repairing or the renovation to the wind turbine tower of first front construction, and wherein wind turbine tower comprises having each a plurality of axial tubular portion section of main structure element that is used for axial tubular portion section.At this, structural element can be a cylindrical shape generally, and approval is that structural element can comprise taper once more.Back-up system can be required, with provide extra structural integrity or with from wind turbine and the upgrading that is installed in the engine compartment on the pylon top at extra weight.
Back-up system can comprise at least one the corner reinforcing portion of main structure element that is used for a plurality of axial tubular portion section.With reference to figure 2, Fig. 3, Fig. 4 and Fig. 5.Corner reinforcing portion 150 can be generally equidistantly be provided around the circumference of main structure element 135.Corner reinforcing portion 150 can be connected in or the internal surface 185 of main structure element 135 on or on its outer surface 180.For its renovation, corner reinforcing portion 150 will connect or other mode as known in the art be mounted by welding, bolt, and it occurs on the place rather than in manufacturing equipment.Similar in appearance to initial installation application, the corner reinforcing portion can be applied to pylon portion section one or more go up (such as, bottom 130, middle part pylon 120 and top 110) and can partially or fully extend along the length of main structure element 135.When corner reinforcing portion 150 axial tubular portion section 165 places meet in abutting connection with the end time, be used for the adjacent portion section (such as, bottom 130 and middle part pylon 120) corner reinforcing portion 150 can be connected to be used for further reinforcement.The support end 192 that is used for the corner support part 190 of base portion section 130 can be strengthened further by linking on the existing or newly-established ground 175.When wind turbine tower ground on the scene is established, to repair, renovate or upgrading such as being used for, main structure element 135 does not need to betransported.Demand for rodability is that the corner reinforcing portion itself is assemblied in the space envelope of rail transport in this case.
(the corner reinforcing portion is to the main structure element for the connection of the element of back-up system, the corner reinforcing portion is on the reinforcing portion of corner, corner support part is on the reinforcing portion of corner) can connect by bolt, welding or other suitable mode as known in the art, to be used for being installed in the scene.
The back-up system that is used for existing pylon can further comprise at least one each the corner support part of corner reinforcing portion that is used for a plurality of axial tubular portion section.Corner support part can be connected on the reinforcing portion of corner and at relative place, end at place, an end and be connected to the new or existing ground that is used for pylon.Further, when the transportation of corner reinforcing portion that is provided for the previous wind-force pylon of installing and pylon portion section is not paid close attention to, be not limited around the utilization of outer surface so, so can provide extra corner reinforcing portion at other circumferential location with modes four corner reinforcing portion placed in the middle of about 90 degree.
Fig. 4 B illustrates the corner reinforcing portion in field upgrade, renovation and the repairing of existing wind turbine tower.The corner reinforcing portion is outside corner reinforcing portion 410 or inner corner reinforcing portion 420.For existing pylon, outside corner reinforcing portion 410 or inner corner reinforcing portion 420 do not betransported together with pylon portion section.So the demand that is used for the rail transport size in repairing, upgrading, after market and retrofit application occasion only is the space envelope 430 that corner reinforcing portion itself need be limited in being used for the track rodability.The combination of main structure element 135 and corner reinforcing portion 410 can surpass space envelope 430.
Fig. 6 illustrates the rail transport of the pylon main structure element that is used for exemplary 3 portion's section wind-force pylons.Locomotive 610 carrying pylon portion sections with at least 3 railcars 620, railcar 630 and railcar 640.In having the exemplary pylon of 3 portion's sections, portion's section is assigned on each of railcar.For this example, top section 110 has main structure element 650, and it does not use the corner reinforcing portion and satisfies the space requirement that is used for rail transport.The main structure element 660 that is used for middle part pylon portion's section 120 and base portion section 130 is provided with corner reinforcing portion 150, the space envelope 670 that its assembly drop is being used for rail transport.Each pylon portion section all is equal lengths 680 basically, and its length by railcar 620, railcar 630 and railcar 640 provides.Corner support part 190 can be stored in one or more inside of portion's section.Further, for U.S.'s transportation, the length of railcar is limited in about 89 feet.Rail transport beyond the U.S. is also limited by similar length consideration, but wherein size is specific to the scene.
The present invention also goes on foot and comprises the method that is used to wind turbine tower that structural support is provided, and is assemblied in the space envelope that is used for rail transport of appointment to allow pylon portion section.This method comprises provides a plurality of axial tubular portion section, and its middle part has the external diameter of the maximum diameter of the appointment of being not more than.Each the main structure element that is used for a plurality of axial tubular portion section is shaped as cylindrical shape generally.The corner reinforcing portion is formed at least one the main structure element that is used for a plurality of axial tubular portion section to be used for linking, and is adapted to the space envelope that is not more than the combination of specified size on a side of rail transport with foundation.The corner reinforcing portion can or partially or fully be extended along the length of axial tubular portion section.The corner reinforcing portion is connected being used at least one of main structure element, and the corner reinforcing portion is equidistantly around the circumference of main structure element at each edge.
This method further comprises when the corner reinforcing portion is provided at least the base portion section links the ground that is used for the wind-force pylon with the corner reinforcing portion.When the corner reinforcing portion was provided at least the base portion section, corner support part was provided for each corner reinforcing portion of base portion section at least.Then, this method provides an end that is used for corner support part to link the corner reinforcing portion.The opposed end of corner support part is linked at least one of new ground and the existing ground that is used for pylon.
By increasing rotary inertia, on the outer surface of main cylindrical elements, connect corner reinforcing portion and corner support part bigger support to pylon is provided.Yet therefore the aesthetic appearance of externally reinforced possibility overslaugh pylon provides certain motivation so that the reinforcing on the internal surface of linking the main structure element to be provided.The interference of top section and middle part pylon portion's section and turbine bucket rotation also needs the corner reinforcing portion to be provided at the inside of main structure element, although this support is lower than externally reinforced efficient.
Although diagram and described only some feature of the present invention in this article, those technician in related domain can expect many modifications and variations.So when being understandable that in dropping on essential spirit of the present invention, accessory claim is intended to cover all such modifications and variation.
Claims (10)
1. a wind turbine tower (100) comprising:
A plurality of axial tubular portion's sections (110,120,130), described section comprises the external diameter (160) of the maximum diameter that is not more than appointment;
Be used for each main structure element (135) of described axial tubular portion section, described main structure element is cylindrical shape generally; With
The corner reinforcing portion (150) that is used for described main structure element (135), described corner reinforcing portion (150) be generally equidistantly around the circumference setting of described main structure element (135), and be separated in the modes of about 90 degree.
2. wind turbine tower according to claim 1, it is characterized in that, described corner reinforcing portion (150) generally at least in part or fully the length (145) of at least one in described a plurality of axial tubular portion's sections (110,120,130) axially extend.
3. wind turbine tower according to claim 2, it is characterized in that, when the described corner reinforcing portion (150) of axially extending generally extends to further in axial tubular portion section (110,120,130) in abutting connection with the end (165) when locating to meet, described corner reinforcing portion (150) structurally be connected described in abutting connection with the end (165) locate.
4. wind turbine tower according to claim 2, it is characterized in that, for described a plurality of axial tubular portion section (110,120, the base portion section (130) of at least one 130), described corner reinforcing portion (150) extend to the ground (175) that is used for described pylon further.
5. wind turbine tower according to claim 2 is characterized in that, described corner reinforcing portion (150) is fixed on the internal surface (185) of described main structure element (135) and in the outer surface (180) at least one.
6. wind turbine tower according to claim 5, it is characterized in that, linked when described corner reinforcing portion (150) and to be used for described a plurality of axial tubular portion section (110,120, when the described outer surface (180) of the described main structure element (135) of at least one 130) was gone up, an end (191) of corner support part (190) was connected to each at least one the described corner reinforcing portion (150) that is used for described a plurality of axial part sections.
7. wind turbine tower according to claim 6, it is characterized in that, when being set to, described corner support part (190) is used for described a plurality of axial tubular portion section (110,120, in the time of in the described corner reinforcing portion (150) of at least one 130) each, described corner support part (190) locates to be anchored on the ground (175) in relative end (192).
8. wind turbine tower according to claim 7 is characterized in that, the described ground that is used for described corner support part comprises at least one of pile foundation of the existing ground that is used for described pylon and non-existing new installation.
9. wind turbine tower according to claim 6, it is characterized in that, when the outer surface (180) that is fixed to described main structure element (135) when described corner reinforcing portion (150) was gone up, the described main structure element (135) with described corner reinforcing portion (150) of installation was included in the maximum sized space envelope (195) that is not more than regulation on the side (197).
10. wind turbine tower according to claim 9 is characterized in that, comprises the space envelope (195) that can be adapted to rail transport at the above maximum sized described envelope of a side (197).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/731,716 US20080236073A1 (en) | 2007-03-30 | 2007-03-30 | Low cost rail-transportable wind turbine tower |
| US11/731716 | 2007-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101338726A true CN101338726A (en) | 2009-01-07 |
Family
ID=39719774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100909339A Pending CN101338726A (en) | 2007-03-30 | 2008-03-28 | Low cost rail-transportable wind turbine tower |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20080236073A1 (en) |
| CN (1) | CN101338726A (en) |
| DE (1) | DE102008016288A1 (en) |
| DK (1) | DK200800445A (en) |
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Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AP2010005410A0 (en) * | 2008-03-03 | 2010-10-31 | Daniel Stark | Tower foundation system. |
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| BR112023018882A2 (en) * | 2021-04-12 | 2023-10-24 | Rwe Renewables Europe & Australia Gmbh | REMODELING EXISTING WIND TURBINE FOUNDATIONS, REFURBISHED WIND TURBINE FOUNDATION AND METHOD OF REMODELING A WIND TURBINE FOUNDATION |
Family Cites Families (45)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1679297A (en) * | 1925-02-20 | 1928-07-31 | Ehrler Albert | Method and apparatus for placing poles |
| US1722352A (en) * | 1925-08-05 | 1929-07-30 | Blaw Knox Co | Pole support |
| US1719352A (en) * | 1927-06-11 | 1929-07-02 | Edward L Young | Gin pole |
| US1979580A (en) * | 1931-03-19 | 1934-11-06 | Eastern Malleable Iron Company | Pole mounting |
| US1959756A (en) * | 1931-08-19 | 1934-05-22 | Pittsburgh Crucible Steel Comp | Columnar structure |
| US2346391A (en) * | 1943-01-14 | 1944-04-11 | Patent Scaffolding Co Inc | Structural member |
| US2772539A (en) * | 1951-01-18 | 1956-12-04 | Sandberg William Andrew | Foundation for off-shore drilling rig |
| US2903856A (en) * | 1954-06-29 | 1959-09-15 | Gulf Research Development Co | Means for laterally bracing partially submerged erect structures |
| US3246475A (en) * | 1961-08-28 | 1966-04-19 | William M Booth | Telescopic marine derrick structure and method of erecting same |
| US3295275A (en) * | 1964-06-30 | 1967-01-03 | Christian S Carlsen | Utility pole and base construction |
| US3785107A (en) * | 1970-06-10 | 1974-01-15 | G Garretson | Post and post base assembly |
| US3987593A (en) * | 1972-08-25 | 1976-10-26 | Lars Svensson | Posts |
| US5482245A (en) * | 1973-10-28 | 1996-01-09 | Graves; Lori L. | Tree and pole stand |
| US4033080A (en) * | 1976-01-20 | 1977-07-05 | Nippon Concrete Industries Co. Ltd. | Concrete pole to be connected with a wood pole and method of replacing the lower part of the wood pole with the concrete pole |
| US4134707A (en) * | 1977-04-26 | 1979-01-16 | Ewers Marion H | Wind turbine apparatus |
| DE3343721A1 (en) * | 1983-12-02 | 1985-06-13 | Alfons O. Old Field N.Y. Krautz | HIGH, DETACHED CHIMNEY OR TOWER MADE OF REINFORCED CONCRETE |
| GB9024500D0 (en) * | 1990-11-10 | 1991-01-02 | Peace Steven J | A vertical axis wind turbine unit capable of being mounted on or to an existing chimney,tower or similar structure |
| US5133164A (en) * | 1990-12-14 | 1992-07-28 | Tri-Steel Industries Inc. | Pole anchoring system |
| US5371986A (en) * | 1992-10-13 | 1994-12-13 | Guditis; Robert J. | Pole repair and reinforcing system and method for installing the same |
| US5383749A (en) * | 1993-01-13 | 1995-01-24 | Reisdorff; Robert A. | Methods of reinforcing utility pole structures having their lower ends embedded in the ground, and reinforcement cage structure useful for practicing the method |
| US6079165A (en) * | 1997-05-22 | 2000-06-27 | Osmose Wood Preserving, Inc. | Apparatus and method for bracing vertical structures |
| AUPQ505600A0 (en) * | 2000-01-12 | 2000-02-03 | Koszo, Nandor | Brick-work architectural pillar and method of production |
| US6453636B1 (en) * | 2000-04-24 | 2002-09-24 | Charles D. Ritz | Method and apparatus for increasing the capacity and stability of a single-pole tower |
| AU2001296896A1 (en) * | 2000-09-27 | 2002-04-08 | Allan P. Henderson | Perimeter weighted foundation for wind turbines and the like |
| US7290672B2 (en) * | 2001-03-21 | 2007-11-06 | Federated Equipment Co. Llc | Tower crane device |
| US6901717B2 (en) * | 2001-05-16 | 2005-06-07 | Pennsummit Tubular, Llc | Pole reinforcing arrangement |
| CA2375445A1 (en) * | 2002-03-04 | 2003-09-04 | Douglas Hadden | Utility standard repair device and methods |
| US6694698B2 (en) * | 2002-05-03 | 2004-02-24 | Creative Design & Maching, Inc. | Reinforcement apparatus for monopole towers |
| US20040020158A1 (en) * | 2002-08-02 | 2004-02-05 | Kopshever Michael J. | Tower apparatus |
| US6938392B2 (en) * | 2002-08-14 | 2005-09-06 | Newmark International, Inc. | Concrete filled pole |
| US6684580B1 (en) * | 2002-10-07 | 2004-02-03 | David Hull | Post stabilization support |
| ES2297130T3 (en) | 2003-03-19 | 2008-05-01 | Vestas Wind Systems A/S | METHOD FOR BUILDING LARGE TOWERS FOR AEROGENERATORS. |
| CA2424063C (en) * | 2003-03-27 | 2008-10-21 | Tri-Steel Industries Inc. | Hollow pole anchoring system |
| DE10339438C5 (en) * | 2003-08-25 | 2011-09-15 | Repower Systems Ag | Tower for a wind turbine |
| US7116282B2 (en) * | 2003-10-14 | 2006-10-03 | John Trankina | Tower reinforcement |
| US7363752B2 (en) * | 2004-03-26 | 2008-04-29 | Osmose, Inc. | Pole reinforcement truss |
| US7415808B2 (en) * | 2004-03-26 | 2008-08-26 | Osmose Utilities Services, Inc. | Pole reinforcement truss |
| US7609224B2 (en) * | 2004-06-29 | 2009-10-27 | Watson Iii Thomas B | Reducing wind loads on monopoles to provide increased capacity without structural reinforcement |
| US20060010824A1 (en) * | 2004-07-15 | 2006-01-19 | Waters Eric S | Cladding assembly and method of cladding posts |
| ES1058539Y (en) * | 2004-10-11 | 2005-04-01 | Inneo21 S L | PERFECTED MODULAR TOWER STRUCTURE FOR WIND TURBINES AND OTHER APPLICATIONS. |
| ES2246734B1 (en) * | 2005-04-21 | 2007-04-16 | STRUCTURAL CONCRETE & STEEL, S.L. | PREFABRICATED MODULAR TOWER. |
| US7508088B2 (en) * | 2005-06-30 | 2009-03-24 | General Electric Company | System and method for installing a wind turbine at an offshore location |
| US7374149B1 (en) * | 2005-08-26 | 2008-05-20 | Verizon New England Inc. | Road crossing assistant for installing optical fiber telephone cable |
| US7735290B2 (en) * | 2005-10-13 | 2010-06-15 | General Electric Company | Wind turbine assembly tower |
| US20070243063A1 (en) * | 2006-03-17 | 2007-10-18 | Schellstede Herman J | Offshore wind turbine structures and methods therefor |
-
2007
- 2007-03-30 US US11/731,716 patent/US20080236073A1/en not_active Abandoned
-
2008
- 2008-03-27 DK DK200800445A patent/DK200800445A/en not_active Application Discontinuation
- 2008-03-28 CN CNA2008100909339A patent/CN101338726A/en active Pending
- 2008-03-28 DE DE102008016288A patent/DE102008016288A1/en not_active Withdrawn
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| CN102953942A (en) * | 2012-10-23 | 2013-03-06 | 广东明阳风电产业集团有限公司 | Polygonal raking shore connecting structure of wind driven generator tower tube and guide frame foundation |
| CN102953323A (en) * | 2012-12-04 | 2013-03-06 | 南京联众建设工程技术有限公司 | Spliced-type corrugated steel plate load-bearing column |
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| CN107429670A (en) * | 2015-03-03 | 2017-12-01 | 尼西姆·阿加西 | The wind tower system for the reduction profile applied for continental rise and coastal waters |
| CN107429670B (en) * | 2015-03-03 | 2020-04-14 | 尼西姆·阿加西 | Reduced profile wind tower system for land-based and offshore applications |
| CN111364803A (en) * | 2020-03-21 | 2020-07-03 | 广州华景建设有限公司 | Lateral movement resistant garden pavilion and construction method thereof |
| CN111364803B (en) * | 2020-03-21 | 2021-11-05 | 广州华景建设有限公司 | Lateral movement resistant garden pavilion and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008016288A1 (en) | 2008-10-02 |
| US20080236073A1 (en) | 2008-10-02 |
| DK200800445A (en) | 2008-10-01 |
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Open date: 20090107 |