WO2023045157A1 - 塔筒段、塔架、风力发电机组、模具以及成型方法 - Google Patents

塔筒段、塔架、风力发电机组、模具以及成型方法 Download PDF

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Publication number
WO2023045157A1
WO2023045157A1 PCT/CN2021/141691 CN2021141691W WO2023045157A1 WO 2023045157 A1 WO2023045157 A1 WO 2023045157A1 CN 2021141691 W CN2021141691 W CN 2021141691W WO 2023045157 A1 WO2023045157 A1 WO 2023045157A1
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WO
WIPO (PCT)
Prior art keywords
tower
mold
connecting piece
adjacent
slurry
Prior art date
Application number
PCT/CN2021/141691
Other languages
English (en)
French (fr)
Inventor
王培显
徐瑞龙
丛欧
Original Assignee
北京天杉高科风电科技有限责任公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京天杉高科风电科技有限责任公司 filed Critical 北京天杉高科风电科技有限责任公司
Priority to EP21958267.3A priority Critical patent/EP4400715A1/en
Priority to KR1020247010856A priority patent/KR20240055805A/ko
Priority to AU2021465850A priority patent/AU2021465850A1/en
Publication of WO2023045157A1 publication Critical patent/WO2023045157A1/zh

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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
    • F03D13/201—Towers
    • F03D13/205—Connection means, e.g. joints between segments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • 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
    • 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
    • F03D13/201—Towers
    • F03D13/204—Circumferentially segmented
    • 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
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • 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
    • F05B2260/00—Function
    • F05B2260/30—Retaining components in desired mutual position
    • F05B2260/301—Retaining bolts or nuts
    • 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 application belongs to the technical field of wind power, and in particular relates to a tower section, a tower, a wind power generating set, a mold and a forming method.
  • Embodiments of the present application provide a tower section, a tower frame, a wind power generating set, a mold, and a forming method.
  • the tower section is convenient for transportation and has high safety.
  • a tower section including: the base of the barrel section, including more than two tower sections successively distributed along its circumferential direction; the connecting component, in the circumferential direction, adjacent to two towers
  • the tube segments are connected by a connection assembly, and the connection assembly includes a first connection piece and a second connection piece, the first connection piece is located inside one of two adjacent tower tube sections, and the second connection piece is at least partly located between two adjacent tower sections.
  • the first connecting part includes a transfer part and an anchor part, the transfer part is connected with the second connecting part, and the anchor part is connected with the side of the transfer part away from the second connecting part.
  • the anchoring part is rod-shaped and has a first end face and a second end face in its own extension direction, the first end face is set facing the transfer part, and the maximum vertical distance between the first end face and the second end face smaller than the length dimension of the anchorage.
  • the anchoring portion has at least one bending region; the anchoring portion at least partially follows a curved track, and/or, the anchoring portion at least partially extends along a broken line track.
  • the transfer part and the anchor part are detachably connected to each other.
  • the transition part includes a first transition sleeve, and the anchor part at least partially extends into the first transition sleeve and is screwed into the first transition sleeve.
  • the second connecting piece includes a straight screw
  • the transfer part includes a second adapter sleeve
  • the straight screw protrudes from the tower segment where it is located along its length direction and extends into the second adapter sleeve Inside, to be threadedly connected with the second adapter sleeve.
  • the inner wall surface of the tower segment provided with the straight screw has an operation slit, and the length direction of the straight screw intersects with the end face of the tower segment where it is located in the circumferential direction.
  • a support surface facing the end surface is formed at the operation cutout, and the straight screw is at least partially located in the operation cutout and pressed against the support surface.
  • the connecting assembly further includes a protective component
  • the protective component includes a protective sleeve
  • the protective sleeve is at least partially located in the tower segment provided with the second connecting piece
  • the protective sleeve is arranged around the straight screw.
  • the protective component further includes a reinforcing plate and a plurality of reinforcing ribs, the reinforcing plate is arranged on the end of the protective sleeve away from the first connecting piece in its axial direction and pressed against the supporting surface, and the multiple reinforcing ribs They are distributed at intervals on the outer circumference of the protective sleeve and are connected with reinforcement plates respectively.
  • the number of connection assemblies connected between two adjacent tower tube segments is multiple, and the multiple connection assemblies are distributed at intervals in the height direction of the base body of the tube section.
  • a tower including the above-mentioned tower section, more than two tower sections are arranged coaxially, and two adjacent tower sections are connected to each other.
  • an embodiment of the present application provides a wind power generating set, including the above-mentioned tower.
  • a mold including: a mold base, including more than two slitting mold units and a vertical end mold, and more than two slicing mold units are distributed around the same axis at intervals, and two adjacent A vertical end mold is clamped between the two slice mold units, and the slice mold unit includes an inner mold, an outer mold and a bottom mold set oppositely, and the vertical end mold is connected to each of the adjacent two slice mold units.
  • the sheet mold units are docked and form a pouring cavity;
  • the connecting assembly includes a first connecting piece and a second connecting piece, the first connecting piece is located in the pouring cavity of one of the two adjacent split mold units, and the second connecting piece at least partially located in the pouring cavity of the other of the two adjacent split mold units,
  • the first connecting piece includes a transfer portion and an anchor portion, the second connecting piece passes through the vertical end form and is connected to the transfer portion,
  • the anchoring part is connected with a side of the transfer part away from the second connecting part.
  • the inner mold of the split mold unit provided with the second connecting member has a protrusion protruding toward the direction of the outer mold, and the second connecting member at least partially extends into the protrusion.
  • a method for forming a tower section including:
  • the second connecting piece is taken out to separate from the whole formed by the first connecting piece, the mold base and the slurry after reaching the predetermined state;
  • the forming method further includes: screwing the second connecting piece according to a predetermined rotating speed.
  • the tower section includes a base body and a connecting assembly
  • the base body of the tube section includes more than two sections of the tower section
  • the tower section adopts The separate configuration can meet the requirements of the transportation height limit and facilitate the transportation of the tower section.
  • the connecting assembly includes a first connecting piece and a second connecting piece
  • the first connecting piece is located inside one of two adjacent tower tube segments
  • the second connecting piece is at least partially located in the other of two adjacent tower tube segments Inside one of them, the transition part included in the first connecting part is connected with the second connecting part, so that two adjacent tower tube segments can be connected through the connecting assembly
  • the first connecting part also includes an anchoring part, and the anchoring part It is connected to the side of the transfer part away from the second connecting part.
  • connection area between the first connecting part and the tower segment where it is located can be increased, and the connection strength with the tower segment can be improved, thereby ensuring that the adjacent
  • connection strength between the two tower segments avoids the risk of failure of the separation and connection failure of the adjacent two tower segments due to the separation of the first connecting piece from the tower segment, and improves the safety performance of the tower segment.
  • Fig. 1 is a schematic structural view of a wind power generating set according to an embodiment of the present application
  • Fig. 2 is the structural representation of the tower frame of an embodiment of the present application
  • Fig. 3 is an exploded view of the tower section of an embodiment of the present application.
  • Fig. 4 is a schematic diagram of a partial structure of a tower section according to an embodiment of the present application.
  • Fig. 5 is a schematic structural diagram of a first connector according to an embodiment of the present application.
  • Fig. 6 is a schematic structural diagram of an anchoring part of an embodiment of the present application.
  • Fig. 7 is a schematic structural diagram of an anchoring part of another embodiment of the present application.
  • Fig. 8 is a schematic structural diagram of a second connector according to an embodiment of the present application.
  • Fig. 9 is a schematic diagram of cooperation between the protective component and the second connecting piece according to an embodiment of the present application.
  • Fig. 10 is a schematic structural view of a protective component according to another embodiment of the present application.
  • Fig. 11 is a schematic diagram of cooperation between a protective component and a second connector according to another embodiment of the present application.
  • Fig. 12 is the exploded view of the mold of one embodiment of the present application.
  • Fig. 13 is a partial structural schematic diagram of a mold according to an embodiment of the present application.
  • Fig. 14 is a schematic flowchart of a method for forming a tower section according to an embodiment of the present application.
  • 20-connection assembly 21-first connector; 211-transition part; 211a-first transfer sleeve; 211b-second transfer sleeve; 212-anchor part; 212a-first end face; 212b-second end face ; 212c - bending area;
  • X-circumferential direction Y-height direction; H-maximum vertical distance; aa-curved track; bb-broken line track; cc-circumferential end face.
  • an embodiment of the present application provides a wind power generating set, which mainly includes a tower 1 , a nacelle 2 , a generator 3 and an impeller 4 .
  • the tower 1 is connected to the wind turbine foundation, the nacelle 2 is arranged on the top of the tower 1, the generator 3 is arranged in the nacelle 2, and the generator 3 can be located outside the nacelle 2 to form a direct-drive wind power generating set.
  • the generator 3 can also be located outside the nacelle 2 to form a doubly-fed wind power generating set.
  • the impeller 4 includes a hub 401 and a plurality of blades 402 connected to the hub 401 , and the impeller 4 is connected to the rotor of the generator 3 through the hub 401 .
  • the wind force acts on the blade 402 it drives the entire impeller 4 and the rotor of the generator to rotate, thereby meeting the power generation requirements of the wind power generator set.
  • the embodiment of the present application also provides a tower 1, the tower 1 includes more than two tower sections 100, the two or more tower sections 100 are coaxially arranged and adjacent to the two tower sections 100
  • the number of tower sections 100 included in the tower 1 can be determined according to the model of the wind power generating set and the height of a single tower section 100 , and there is no specific limit to the number in this application.
  • the tower 1 is required to have a larger axial dimension as well as a radial dimension. In order to meet the transportation requirements of the tower 1 , at least part of the tower sections 100 of the tower 1 need to be divided into tower segments 11 . After being transported to the site, the tower segments 11 are first spliced to form corresponding tower segments 100 , and then the tower segments 100 are stacked to form the tower 1 .
  • the tower sections 11 of the tower section 100 have a "wet connection” method in which steel bars are connected and high-strength slurry is poured during splicing. This connection method makes the connection strength between the tower sections 11 low , affecting the safety performance of the tower section 100 .
  • the embodiment of the present application also provides a new tower section 100, which is convenient for transportation and has high safety.
  • the tower section 100 includes a barrel section base 10 and a connecting assembly 20 , and the barrel section base 10 includes more than two tower segments 11 successively distributed along its circumferential direction X.
  • the barrel section base 10 In the circumferential direction X of the barrel base body 10 , two adjacent tower tube segments 11 are connected by a connection assembly 20 .
  • the connecting assembly 20 includes a first connecting member 21 and a second connecting member 22, the first connecting member 21 is located inside one of two adjacent tower segments 11, and the second connecting member 22 is at least partially located in two adjacent tower segments Inside the other one of the tube segments 11, the first connecting part 21 includes a transfer part 211 and an anchor part 212, the transfer part 211 is connected to the second connecting part 22, and the anchor part 212 and the transfer part 211 are away from the second connection One side of piece 22 is connected.
  • the base body 10 of the section includes more than two sections of the tower section 11 , and the tower section 100 is arranged in separate parts, which can meet the transportation height limit requirements and facilitate the transportation of the tower section 100 .
  • the connecting assembly 20 includes a first connecting piece 21 and a second connecting piece 22, the first connecting piece 21 is located inside one of two adjacent tower segments 11, and the second connecting piece 22 is at least partially located in two adjacent tower segments.
  • the transfer portion 211 included in the first connecting member 21 is connected to the second connecting member 22, so that two adjacent tower segments 11 can be connected through the connecting assembly 20 to form Tower section 100.
  • the first connecting part 21 also includes an anchoring part 212, and the anchoring part 212 is connected to the side of the transfer part 211 away from the second connecting part 22.
  • the anchoring part 212 By adding the anchoring part 212, the separation between the first connecting part 21 and the tower where it is located can be increased.
  • the connection area of the sheet 11 improves the connection strength with the tower slices 11, thereby ensuring the connection strength between two adjacent tower slices 11, and avoiding the connection between the first connecting piece 21 and the tower slice 11 where it is located.
  • the separation causes the risk of separation and connection failure of two adjacent tower tube segments 11 , improving the safety performance of the tower tube section 100 .
  • the number of connection assemblies 20 connected between two adjacent tower sections 11 is multiple, and the number of connection assemblies 20 in the tube
  • the segment bases 10 are distributed at intervals in the height direction Y.
  • the anchoring part 212 is rod-shaped and has a first end face 212a and a second end face 212b in the direction of its own extension. , the first end surface 212a is disposed facing the transfer portion 211 , and the maximum vertical distance H between the first end surface 212a and the second end surface 212b is smaller than the length dimension of the anchoring portion 212 .
  • the anchoring portion 212 can be made to have a non-linear structure as a whole, and the contact and connection area between the anchoring portion 212 and the tower segment 11 where it is located can be further increased.
  • the anchoring portion 212 thereof has at least one bending region 212c, and the anchoring portion 212 at least partially extends along the curved track aa.
  • the anchoring portion 212 may be a rod-shaped structure having at least one bending region 212c. It is beneficial to the connection with the corresponding tower segment 11 , and can reduce the space occupied by the anchor portion 212 , reducing the impact of the setting of the anchor portion 212 on the wall thickness of the tower segment 11 .
  • the bending direction of the bending region 212c of the anchoring portion 212 may be bent along the radial direction of the tower section 100 .
  • the anchoring part 212 can be extended along the circumferential direction X as a whole and has a plurality of bending areas 212c, and the length of the anchoring part 212 can be increased so that it is not limited by the wall thickness of the tower segment 11, ensuring that the tower Reliable performance of connecting the tower segments 11 of the barrel section 100 through the connecting assembly 20 .
  • the anchoring part 212 can include two bending regions 212c, and the two bending regions 212c can be bent in the radial direction and the bending directions are opposite, so as to improve the separation between the first connecting member 21 and the corresponding tower.
  • the anchoring portion 212 at least partially extends along the curved track aa, which can be understood as a track in which the moving direction of a moving point changes continuously.
  • the number of bending regions 212c is two is only an optional implementation manner, and in some other embodiments, the number of bending regions 212c can also be multiple, and no specific numerical values are given here limit.
  • the transfer part 211 and the anchor part 212 are detachably connected to each other.
  • the forming of the transition part 211 can be facilitated.
  • the corresponding anchoring part 212 can be set according to the size of the tower section 100 to be formed and the connection strength requirements between two adjacent tower segments 11, so that the connection assembly 20 is more versatile.
  • one of the adapter part 211 and the anchor part 212 can be inserted into the other and detachably connected to each other. Through the above arrangement, the detachability between the two can be ensured. Connection requirements and connection strength.
  • the adapter portion 211 includes a first adapter sleeve 211a, and the anchor portion 212 at least partially extends into the first adapter sleeve 211a and is threadedly connected with the first adapter sleeve 211a.
  • the anchoring portion 212 can also at least partially extend into the first adapter sleeve 211a and be squeezed and connected with the first adapter sleeve 211a, as long as the connection strength requirements between the two can be ensured. Can.
  • the tower section 100 provided in the above-mentioned embodiments of the present application is illustrated by taking at least part of its anchoring portion 212 extending along the curved track aa as an example. It can be understood that this is an optional way of implementation.
  • the anchoring portion 212 can also be made to extend along the broken line track bb, which can also enhance the connection strength between the first connecting piece 21 and the tower segment 11 as a whole, ensuring that the tower Stability performance of barrel section 100.
  • the broken line trajectory bb can be understood as a zigzag connection composed of multiple line segments connected end to end.
  • the second connecting part 22 includes a straight screw 221
  • the transfer part 211 includes a second rotating rod.
  • the connecting sleeve 211b and the straight screw rod 221 protrude from the tower tube segment 11 along its length direction and extend into the second adapter sleeve 211b to be threadedly connected with the second adapter sleeve 211b.
  • the second connecting piece 22 By making the second connecting piece 22 include a straight screw 221, the connection requirements between the second connecting piece 22 and the adapter portion 211 can be met. At the same time, the use of the straight screw 221 makes the splicing of the tower segments 11 more efficient. efficiency. Moreover, the part of the tower tube segment 11 for accommodating the straight screw 221 is a straight hole section, which has a simple structure and is beneficial to the forming of the tower tube segment 11 .
  • the inner wall surface of the tower segment 11 provided with the straight screw 221 has an operation slit 111, and the length direction of the straight screw 221 is consistent with the tower segment where it is located.
  • 11 is intersected with the end face cc in the circumferential direction X, and the tower segment 11 is formed with a supporting surface 112 facing the end face cc in the circumferential direction X at the operation cutout 111, and the straight screw 221 is at least partly located in the operation cutout 111 and against Press on the supporting surface 112.
  • the straight screw 221 can be exposed on the inner wall surface of the tower segment 11, so that the straight screw 221 is drawn out or inserted from the tower segment 11, which facilitates the disassembly between two adjacent tower segments 11.
  • the operation cutout 111 can be a right-angle cutout, and the extension direction of the straight screw rod 221 is perpendicular to the support surface 112.
  • the connection assembly 20 further includes a protective component 23, and the protective component 23 includes a protective sleeve 231, and the protective sleeve 231 is at least A part is located in the tower segment 11 provided with the second connecting piece 22 , and the protective sleeve 231 is arranged around the straight screw 221 .
  • the straight screw 221 can be passed through the protective cover 231 when the tower section 100 is formed, so that the straight screw 221 is isolated from the concrete used to form the tower segment 11.
  • the straight screw 221 is pulled out to form an insertion hole for inserting the straight screw 221 in the tower segment 11, so that when the tower segments 11 are assembled with each other, the straight screw 221 can be inserted into the tower segment 11 and connected with the tower segment 11.
  • the connecting portion 211 located in another tower segment 11 is connected.
  • the protective sheath 231 may be a flexible rubber protective sheath. Of course, this is an optional implementation, but not limited to the above method. In some embodiments, the protective sheath 231 may also be a rigid sheath.
  • the protective component 23 may also include a reinforcing plate 232 and a plurality of reinforcing ribs 233, and the reinforcing plate 232 is arranged on the protective cover.
  • the end of the first connecting member 231 facing away from the first connecting member 21 in the axial direction is pressed against the support surface 112 , and a plurality of reinforcing ribs 233 are distributed at intervals on the outer periphery of the protective sleeve 231 and are respectively connected to the reinforcing plates 232 .
  • the joints between two adjacent tower segments 11 are filled with connectors 30, and the connectors 30 are used to connect adjacent two
  • the tower tube is segmented 11 to improve the overall strength of the tower tube section 100 .
  • the connecting body 30 has shear resistance and bending resistance, and in some optional embodiments, the connecting body 30 may include epoxy resin.
  • the first connecting piece 21 also includes an anchoring part 212.
  • the first The connection area between the connector 21 and the tower segment 11 where it is located improves the connection strength with the tower segment 11, thereby ensuring the connection strength between two adjacent tower segments 11, and avoiding the damage caused by the first connector 21. Separation from the tower section 11 where it is located causes the risk of failure of the separation and connection of adjacent tower sections 11 , improving the safety performance of the tower section 100 .
  • connection mode between the first connecting piece 21 and the second connecting piece 22 of the tower section 100 provided in the embodiment of the present application can be compared with the use of arc-shaped bolts.
  • the connection method lowers the standard for the production accuracy of the tower section 100, effectively avoiding the problem that the first connecting piece 21 and the second connecting piece 22 of the connecting assembly 20 are unevenly shifted during the production process, and non-human movement causes the subsequent failure to install. . Therefore, the production of the tower section 100 does not need to adopt a "factory" production scheme with controllable quality.
  • the tower 1 provided by the embodiment of the present application includes the tower section 100 provided by the above-mentioned embodiments, so it is convenient for production, transportation and assembly, and has high assembly efficiency and high safety performance, making it suitable for wind power
  • the generator set has high safety performance and power generation efficiency.
  • the embodiment of the present application further provides a mold 5 that can be used to form the tower section 100 provided in the above-mentioned embodiments.
  • the mold 5 includes a mold base and a connection assembly 20.
  • the mold base includes more than two split mold units 51 and a vertical end mold 52. More than two split mold units 51 are spaced apart around the same axis, and two adjacent split mold units 51 clamps a vertical end mold 52, and the split mold unit 51 includes an inner mold 511, an outer mold 512, and a bottom mold 513 that are arranged oppositely.
  • Each split mold unit 51 is butted to form a pouring cavity 53 .
  • the connecting assembly 20 includes a first connecting piece 21 and a second connecting piece 22, the first connecting piece 21 is located in the pouring cavity 53 of one of the two adjacent split mold units 51, and the second connecting piece 22 is at least partly located in the adjacent In the pouring cavity 53 adjacent to the other of the two split mold units 51, the first connector 21 includes an adapter portion 211 and an anchor portion 212, and the second connector 22 passes through the vertical end mold 52 and connects with the adapter The anchor portion 212 is connected to the side of the transfer portion 211 away from the second connecting member 22 .
  • the mold 5 provided by the embodiment of the present application can be used to pour concrete in the pouring cavity 53 formed by each piece mold unit 51 and the corresponding vertical end mold 52. After the concrete is solidified, each pouring cavity 53 correspondingly forms a tower segment 11, the first connector 21 and the second connector 22 can be retained in the correspondingly formed tower segment 11, so that two adjacent tower segments 11 pass through the connecting assembly 20 connected to form the tower section 100, which can meet the production requirements of the tower section 100, can effectively reduce the purchase cost of the mold 5, and lower the threshold for on-site construction operations.
  • the second connector 22 can be taken out first after the concrete is not completely solidified and the insertion hole for inserting the second connector 22 is formed.
  • the second connecting piece 22 can be inserted into the insertion hole formed by the corresponding tower segment 11 and connected with the corresponding adapter portion 211 of the first connecting piece 21, which is beneficial to the forming of the tower section 100 and can ensure The transportation of the formed tower section 100 and the connection requirements of its tower segments 11 .
  • the mold 5 provided in the embodiment of the present application, the structural form of the first connecting part 21 and the second connecting part 22 of the connecting assembly 20 can adopt the structures in the tower section 100 of the above-mentioned embodiments form and will not be repeated here.
  • the embodiment of the present application provides a mold 5, and its connection assembly 20 may also include a protective component 23, and its protective component 23 may include a protective sleeve 231, and further, its protective component 23 may also include a reinforcing plate 232 and reinforcing ribs 233, the structural form of protective sleeve 231, the structural form of reinforcing plate 232, the structural form of reinforcing ribs 233 and the respective cooperative relationship between each other are the same as the structural forms in the tower section 100 in the above-mentioned embodiments and The cooperation relationship will not be repeated here.
  • the number of the piece-piece mold units 51 and the vertical end mold 52 is not specifically limited, and can be specifically set according to the number of tower tube pieces 11 to be formed.
  • the inner mold 511 of the split mold unit 51 provided with the second connector 22 has a protrusion 54 protruding toward the direction of the outer mold 512, and the second connector 22 at least partially extends into the Inside the protrusion 54 .
  • the protrusion 54 By arranging the protrusion 54, the tower segment 11 can be formed to form an operation cutout 111 at the corresponding position, and the formed operation cutout 111 is in the form of the structure in the tower section 100 of the above-mentioned embodiments, so as to facilitate the formation of the tower Disassembly and assembly of the second connecting member 22 during the process of the segment 11 and after the tower segment 11 is formed.
  • the vertical end mold 52 is provided with an escape hole 521 through which the second connecting member 22 passes.
  • the implementation of the present application also provides a method for forming the tower section 100, including the following steps:
  • the mold 5 can adopt one of the above-mentioned embodiments;
  • the provided mold 5 may be one of the molds 5 mentioned in the above-mentioned embodiments.
  • step S200 only the anchoring part 212 can be supported, or only the second connecting part 22 can be supported.
  • the anchoring part 212 and the second connecting part 22 can also be supported at the same time to lock the connection.
  • the relative position of the assembly 20 and the vertical end form 52 prevents the connection assembly 20 from falling or turning over during the pouring of concrete.
  • steel bars or prestressed tendons may be arranged in the pouring cavity 53 to support the anchoring portion 212 .
  • a protrusion 54 protruding toward the direction of the outer mold 512 can be provided on the inner mold 511 of the split mold unit 51 where the second connector 22 is located.
  • the connecting piece 22 at least partially extends into the protrusion 54 to support the second connecting piece 22 .
  • the slurry poured in the pouring cavity 53 may be concrete slurry, and of course it may also be other slurry liquid that can be solidified to form the tower segment 11 with a predetermined strength.
  • the predetermined state mentioned is that after the initial setting of the concrete and before the final setting, it can ensure that the second connecting piece 22 is separated from the concrete, and at the same time, when the second connecting piece 22 is pulled out, the corresponding area The concrete will not collapse, and the matching area matching the shape of the second connecting piece 22 can be retained.
  • step S500 the tower segments 11 of the formed tower section are separated for easy transportation. After being transported to a predetermined location, each second connecting piece 22 can be plugged into the corresponding tower segment.
  • the slice 11 is also connected to the transition portion 211 of the first connecting piece 21 in another tower segment 11 .
  • the forming method further includes screwing the second connecting member 22 according to a predetermined rotational speed.
  • the second connecting member 22 In order to prevent the second connecting member 22 from being fixed when the slurry is solidified, it cannot be pulled out. There is no numerical limit to the specific screwing speed, as long as it can avoid fixing the second connecting member 22 when the slurry is solidified.
  • step S500 after the slurry is completely solidified, separate the vertical end mold 52 and each split mold unit 51 from the solidified slurry in the corresponding pouring cavity 53, and then form more than two tower tubes Shard 11.
  • the method provided by the embodiment of the present application further includes inserting the second connecting piece 22 into the tower segment 11 and connecting it with the second connecting piece 21, so as to separate two adjacent tower segments 11 connections.
  • the method provided by the embodiment of the present application further includes filling slurry between two adjacent tower tube segments 11, and forming a connecting body 30 after the slurry is solidified, and the connecting body 30 is used for Two adjacent tower tube segments 11 are connected.
  • the slurry filled between two adjacent tower tube segments 11 may be different from the slurry poured in the pouring cavity 53 in step S300.
  • the slurry filled between two adjacent tower tube segments 11 may be an adhesive with tensile and shear strength. In some optional examples, it can be a high-strength epoxy adhesive, of course, this is an optional example, not limited to this, as long as the connecting body 30 formed after curing meets the requirements of two adjacent The bonding strength requirements between the tower tube slices 11 are all acceptable.
  • the method for forming the tower section 100 provided in the embodiment of the present application can form the tower section 100 as provided in the above-mentioned embodiments by performing steps S100 to S500.
  • Two adjacent tower segments 11 of the tower section 100 can be connected by a connecting component 20, and the connection strength is high.
  • the curves of the butt joint surfaces of two adjacent tower segments 11 have a high degree of occlusality.
  • the second connector 22 can be inserted into the corresponding tower segment 11 and connected with the first connector.
  • the connecting part 211 of 21 is connected, disassembled and transported.

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Abstract

一种塔筒段（100），塔筒段（100）包括：筒段基体（10），包括沿自身周向相继分布的两个以上塔筒分片（11）；连接组件（20），在周向上，相邻两个塔筒分片（11）通过连接组件（20）连接，连接组件（20）包括第一连接件（21）以及第二连接件（22），第一连接件（21）位于相邻两个塔筒分片（11）中一者的内部，第二连接件（22）至少部分位于相邻两个塔筒分片（11）中另一者的内部，第一连接件（21）包括转接部（211）以及锚固部（212），转接部（211）与第二连接件（22）连接，锚固部（212）与转接部（211）背离第二连接件（22）的一侧连接。一种塔架（1），包括两个以上相互连接的塔筒段（100）。一种风力发电机组，包括上述塔架（1）。一种制作塔筒段（100）的模具（5）以及采用该模具（5）制作塔筒段（100）的方法。

Description

塔筒段、塔架、风力发电机组、模具以及成型方法
相关申请的交叉引用
本申请要求享有于2021年09月27日提交的名称为“塔筒段、塔架、风力发电机组、模具以及成型方法”的中国专利申请202111137327.X的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本申请属于风电技术领域，尤其涉及一种塔筒段、塔架、风力发电机组、模具以及成型方法。
背景技术
风电行业发展已慢慢进入“平价”时代，如何提供具有竞争力的度电成本成为了当下风力发电机组各个环节直面的问题。目前国内风电产业正在朝着“高塔架、大容量”的方向发展，两种发展方向均对塔架成本降低提出了更迫切的需求。目前在钢混塔架设计阶段，通过不断的设计优化、工艺降本实现塔架生产成本降低，在吊装阶段更需工艺的改进，来对吊装时间进一步提效、缩短时间。钢混塔架高度已进入150m以上的时代，针对整机匹配性的钢混塔架设计需求更高的钢混塔架比例，以满足稳定性要求，故混凝土塔架部分高度越来越高。
由于混凝土结构自重、尺寸特点，其必然存在多环段以及多环段之间分缝并拼装的过程，因此如何实现塔架的环段间构件的快速拼装成为了工艺重点。目前塔架环段之间拼装连接方式连接强度低，影响塔筒段的安全性能。
发明内容
本申请实施例提供一种塔筒段、塔架、风力发电机组、模具以及成型 方法，塔筒段利于运输，且安全性高。
一方面，根据本申请实施例提出了一种塔筒段，包括：筒段基体，包括沿自身周向相继分布的两个以上塔筒分片；连接组件，在周向上，相邻两个塔筒分片通过连接组件连接，连接组件包括第一连接件以及第二连接件，第一连接件位于相邻两个塔筒分片中一者的内部，第二连接件至少部分位于相邻两个塔筒分片中另一者的内部，第一连接件包括转接部以及锚固部，转接部与第二连接件连接，锚固部与转接部背离第二连接件的一侧连接。
根据本申请实施例的一个方面，锚固部呈杆状且在自身延伸方向具有第一端面以及第二端面，第一端面面向转接部设置，第一端面与第二端面之间的最大垂直距离小于锚固部的长度尺寸。
根据本申请实施例的一个方面，锚固部具有至少一个折弯区；锚固部至少部分沿曲线轨迹，和/或，锚固部至少部分沿折线轨迹延伸。
根据本申请实施例的一个方面，转接部以及锚固部彼此可拆卸连接。
根据本申请实施例的一个方面，转接部包括第一转接套，锚固部至少部分伸入第一转接套并与第一转接套螺纹连接。
根据本申请实施例的一个方面，第二连接件包括直螺杆，转接部包括第二转接套，直螺杆沿自身长度方向凸出于所在的塔筒分片并伸入第二转接套内，以与第二转接套螺纹连接。
根据本申请实施例的一个方面，设置有直螺杆的塔筒分片的内壁面具有操作切口，直螺杆的长度方向与所在的塔筒分片在周向上的端面相交设置，塔筒分片在操作切口处形成有面向端面设置的支撑面，直螺杆至少部分位于操作切口内并抵压于支撑面。
根据本申请实施例的一个方面，连接组件还包括防护部件，防护部件包括防护套，防护套至少部分位于设置有第二连接件的塔筒分片内，防护套围绕直螺杆设置。
根据本申请实施例的一个方面，防护部件还包括加强板以及多个加强筋，加强板设置于防护套在自身轴向上背离第一连接件的一端并抵压于支撑面，多个加强筋在防护套的外周间隔分布且分别与加强板连接。
根据本申请实施例的一个方面，相邻两个塔筒分片之间所连接的连接组件的数量为多个，多个连接组件在筒段基体的高度方向上间隔分布。
另一方面，根据本申请实施例提出了一种塔架，包括上述的塔筒段，两个以上塔筒段同轴设置且相邻两个塔筒段相互连接。
又一方面，根据本申请实施例提出了一种风力发电机组，包括上述的塔架。
再一方面，根据本申请实施例提出了一种模具，包括：模具基体，包括两个以上分片模单元以及竖向端模，两个以上分片模单元围绕同一轴线间隔分布，相邻两个分片模单元之间夹持有竖向端模，分片模单元包括相对设置的内模、外模以及底模，竖向端模与相邻两个分片模单元中的每个分片模单元对接并形成浇筑空腔；连接组件，包括第一连接件以及第二连接件，第一连接件位于相邻两个分片模单元中一者的浇筑空腔内，第二连接件至少部分位于相邻两个分片模单元中另一者的浇筑空腔内，第一连接件包括转接部以及锚固部，第二连接件穿过竖向端模并与转接部连接，锚固部与转接部背离第二连接件的一侧连接。
根据本申请实施例的再一个方面，设置有第二连接件的分片模单元的内模上具有向外模所在方向凸出的凸起，第二连接件至少部分伸入凸起内。
再一方面，根据本申请实施例提出了一种塔筒段的成型方法，包括：
提供上述的模具；
对锚固部以及第二连接件的至少一者进行支护，以锁定连接组件与竖向端模的相对位置；
向每个分片模单元与竖向端模形成的浇筑空腔内浇筑浆料；
待浆料固化至预定状态后，将第二连接件取出，以与第一连接件、模具基体以及至预定状态后的浆料形成的整体分离；
待浆料完全固化后，将竖向端模以及各分片模单元与对应浇筑空腔内固化后的浆料分离。
根据本申请实施例的再一个方面，在向每个分片模单元与竖向端模形成的浇筑空腔内浇筑浆料之后且待浆料固化至预定状态后，将第二连接件与第一连接件、模具基体以及至预定状态后的浆料分离的步骤之前，成型 方法还包括：根据预定转速旋拧第二连接件。
根据本申请实施例提供的塔筒段、塔架、风力发电机组、模具以及成型方法，塔筒段包括筒段基体以及连接组件，筒段基体包括两段以上塔筒分片，塔筒段采用分体设置，能够满足运输限高要求，利于塔筒段的运输。由于连接组件包括第一连接件以及第二连接件，第一连接件位于相邻两个塔筒分片中一者的内部，第二连接件至少部分位于相邻两个塔筒分片中另一者的内部，第一连接件包括的转接部与第二连接件连接，使得相邻两个塔筒分片能够通过连接组件连接，并且，第一连接件还包括锚固部，并且锚固部与转接部背离第二连接件的一侧连接，通过增加锚固部，能够增加第一连接件与所在塔筒分片的连接面积，提高与塔筒分片的连接强度，进而能够保证相邻两个塔筒分片之间的连接强度，避免因第一连接件与所在的塔筒分片分离造成相邻两片塔筒分片分离连接失效的风险，提高塔筒段的安全性能。
附图说明
下面将参考附图来描述本申请示例性实施例的特征、优点和技术效果。
图1是本申请一个实施例的风力发电机组的结构示意图；
图2是本申请一个实施例的塔架的结构示意图；
图3是本申请一个实施例的塔筒段的分解图；
图4是本申请一个实施例的塔筒段的局部结构示意图；
图5是本申请一个实施例的第一连接件的结构示意图；
图6是本申请一个实施例的锚固部的结构示意图；
图7是本申请另一个实施例的锚固部的结构示意图；
图8是本申请一个实施例的第二连接件的结构示意图；
图9本申请一个实施例的防护部件与第二连接件的配合示意图；
图10是本申请另一个实施例的防护部件的结构示意图；
图11是本申请另一个实施例的防护部件与第二连接件的配合示意图；
图12是本申请一个实施例的模具的分解图；
图13是本申请一个实施例的模具的局部结构示意图；
图14是本申请一个实施例的塔筒段的成型方法的流程示意图。
其中：
1-塔架；
100-塔筒段；
10-筒段基体；11-塔筒分片；111-操作切口；112-支撑面；
20-连接组件；21-第一连接件；211-转接部；211a-第一转接套；211b-第二转接套；212-锚固部；212a-第一端面；212b-第二端面；212c-折弯区；
22-第二连接件；221-直螺杆；
23-防护部件；231-防护套；232-加强板；233-加强筋；
30-连接体；
2-机舱；3-发电机；4-叶轮；401-轮毂；402-叶片；
5-模具；51-分片模单元；511-内模；512-外模；513-底模；52-竖向端模；521-避让孔；
53-浇筑空腔；54-凸起；
X-周向；Y-高度方向；H-最大垂直距离；aa-曲线轨迹；bb-折线轨迹；cc-周向上的端面。
在附图中，相同的部件使用相同的附图标记。附图并未按照实际的比例绘制。
具体实施方式
下面将详细描述本申请的各个方面的特征和示例性实施例。在下面的详细描述中，提出了许多具体细节，以便提供对本申请的全面理解。但是，对于本领域技术人员来说很明显的是，本申请可以在不需要这些具体细节中的一些细节的情况下实施。下面对实施例的描述仅仅是为了通过示出本申请的示例来提供对本申请的更好的理解。在附图和下面的描述中，至少部分的公知结构和技术没有被示出，以便避免对本申请造成不必要的模糊；并且，为了清晰，可能夸大了部分结构的尺寸。此外，下文中所描述的特征、结构或特性可以以任何合适的方式结合在一个或更多实施例中。
下述描述中出现的方位词均为图中示出的方向，并不是对本申请的塔 筒段、塔架、风力发电机组、模具以及成型方法的具体结构进行限定。在本申请的描述中，还需要说明的是，除非另有明确的规定和限定，术语“安装”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以间接相连。对于本领域的普通技术人员而言，可视具体情况理解上述术语在本申请中的具体含义。
如图1所示，本申请实施例提供一种风力发电机组，风力发电机组主要包括塔架1、机舱2、发电机3以及叶轮4。塔架1连接于风机基础，机舱2设置于塔架1的顶端，发电机3设置于机舱2，发电机3可以位于机舱2的外部形成直驱式风力发电机组，当然，在有些实施例中，发电机3也可以位于机舱2的外部，形成双馈式风力发电机组。叶轮4包括轮毂401以及连接于轮毂401上的多个叶片402，叶轮4通过其轮毂401与发电机3的转子连接。风力作用于叶片402时，带动整个叶轮4以及发电机的转子转动，进而满足风力发电机组的发电要求。
如图2所示，本申请实施例还提供一种塔架1，该塔架1包括两个以上塔筒段100，两个以上塔筒段100同轴设置且相邻两个塔筒段100相互连接，塔架1所包括的塔筒段100的数量可以根据风力发电机组的型号以及单个塔筒段100的高度确定，本申请不做具体数量限制。
由于风力发电机组的机舱2、发电机3及叶轮4等重型设备均支撑于塔架1的上方，当风力发电机组的高度较高或者功率较大时，对塔架1的承载能力具有更高的要求。需要塔架1具有更大的轴向尺寸以及径向尺寸。为了满足塔架1的运输要求，需要将塔架1的至少部分数量的塔筒段100分割形成塔筒分片11。运输至现场后，将塔筒分片11先拼接形成对应的塔筒段100，然后将各塔筒段100层叠形成塔架1。
传统的塔架1，其塔筒段100的塔筒分片11在拼接时有钢筋连接加灌注高强浆料的“湿连接”方式，该种连接方式使得塔筒分片11之间连接强度低，影响塔筒段100的安全性能。
本申请实施例还提供一种新的塔筒段100，该塔筒段100利于运输，且安全性高。
如图3以及图4所示，该塔筒段100包括筒段基体10以及连接组件20，筒段基体10包括沿自身周向X相继分布的两个以上塔筒分片11。在筒段基体10的周向X上，相邻两个塔筒分片11通过连接组件20连接。连接组件20包括第一连接件21以及第二连接件22，第一连接件21位于相邻两个塔筒分片11中一者的内部，第二连接件22至少部分位于相邻两个塔筒分片11中另一者的内部，第一连接件21包括转接部211以及锚固部212，转接部211与第二连接件22连接，锚固部212与转接部211背离第二连接件22的一侧连接。
本申请实施例提供的塔筒段100，其筒段基体10包括两段以上塔筒分片11，塔筒段100采用分体设置，能够满足运输限高要求，利于塔筒段100的运输。由于连接组件20包括第一连接件21以及第二连接件22，第一连接件21位于相邻两个塔筒分片11中一者的内部，第二连接件22至少部分位于相邻两个塔筒分片11中另一者的内部，第一连接件21包括的转接部211与第二连接件22连接，使得相邻两个塔筒分片11能够通过连接组件20连接，以形成塔筒段100。并且，第一连接件21还包括锚固部212，锚固部212与转接部211背离第二连接件22的一侧连接，通过增加锚固部212，能够增加第一连接件21与所在塔筒分片11的连接面积，提高与塔筒分片11的连接强度，进而能够保证相邻两个塔筒分片11之间的连接强度，避免因第一连接件21与所在的塔筒分片11分离造成相邻两片塔筒分片11分离连接失效的风险，提高塔筒段100的安全性能。
作为一种可选地实施方式，本申请实施例提供的塔筒段100，相邻两个塔筒分片11之间所连接的连接组件20的数量为多个，多个连接组件20在筒段基体10的高度方向Y上间隔分布。通过设置多个连接组件20，能够保证相邻两个塔筒分片11之间的连接强度，进而保证塔筒段100的安全性能。
如图5以及图6所示，作为一种可选地实施方式，本申请实施例提供的塔筒段100，锚固部212呈杆状且在自身延伸方向具有第一端面212a以及第二端面212b，第一端面212a面向转接部211设置，第一端面212a与第二端面212b之间的最大垂直距离H小于锚固部212的长度尺寸。通过上 述设置，能够使得锚固部212整体呈非直线结构，能够进一步增加锚固部212与所在塔筒分片11的接触以及连接面积。
作为一种可选地实施方式，本申请实施例提供的塔筒段100，其锚固部212具有至少一个折弯区212c，锚固部212至少部分沿曲线轨迹aa延伸。通过上述设置，能够增大锚固部212与所在塔筒分片11的接触以及连接面积，提高第二连接件22与塔筒分片11之间的连接强度，避免在第一连接件21的作用下，使得第二连接件22与对应的塔筒分片11分离给塔筒段100整体带来安全隐患。
可选地，锚固部212可以为具有至少一个折弯区212c的杆状结构。利于与对应塔筒分片11之间的连接，同时能够减小锚固部212所占用的空间，减小锚固部212的设置对塔筒分片11的壁厚产生影响。
可选地，可以使得锚固部212的折弯区212c的弯折方向沿着塔筒段100的径向弯折。通过上述设置，可以使得锚固部212整体可以沿周向X延伸并具有多个折弯区212c，能够增加锚固部212的长度，使其不受塔筒分片11的壁厚的限制，保证塔筒段100的各塔筒分片11通过连接组件20连接的可靠性能。
示例性地，可以使得锚固部212包括两个折弯区212c，两个折弯区212c可以分别沿径向方向弯折且折弯方向相反，提高第一连接件21整体与对应的塔筒分片11之间的连接强度。
锚固部212至少部分沿曲线轨迹aa延伸，曲线轨迹aa可以理解为一动点运动方向连续变化的轨迹。
可以理解的是，折弯区212c的数量为两个只是一种可选地实施方式，在一些其他的实施例中，也可以使得折弯区212c的数量为多个，在此不做具体数值限制。
作为一种可选地实施方式，转接部211与锚固部212彼此可拆卸连接。通过上述设置，能够利于转接部211的成型，同时，可以根据所要形成的塔筒段100尺寸以及相邻两个塔筒分片11之间的连接强度需求设置对应锚固部212，使得连接组件20更具有通用性。
在一些可选地实施例中，可以使得转接部211以及锚固部212中的一 者插接入另一者的内部且彼此可拆卸连接，通过上述设置，能够保证二者之间的可拆卸连接需求以及连接强度。
作为一种可选地实施例中，转接部211包括第一转接套211a，锚固部212至少部分伸入第一转接套211a并与第一转接套211a螺纹连接。通过上述设置，既能够保证转接部211与锚固部212彼此之间的可拆卸连接需求，防脱效果好，同时利于二者之间的拆装。可以理解的是，在有些示例中，也可以使得锚固部212至少部分伸入第一转接套211a并与第一转接套211a挤压连接，只要能够保证二者之间的连接强度要求均可。
可以理解的是，本申请上述各实施例提供的塔筒段100，均是以其锚固部212的至少部分沿曲线轨迹aa延伸为例进行举例说明，可以理解的是，此为一种可选地实施方式。
如图7所示，有些实施例中，也可以使得锚固部212的至少部分沿着折线轨迹bb延伸，同样能够增强第一连接件21整体与塔筒分片11之间的连接强度，保证塔筒段100的稳定性能。折线轨迹bb可以理解为多条线段首尾依次相接组成的曲折连线。
如图5、图8所示，在一些可选地实施例中，本申请上述各实施例提供的塔筒段100，其第二连接件22包括直螺杆221，转接部211包括第二转接套211b，直螺杆221沿自身长度方向凸出于所在的塔筒分片11并伸入第二转接套211b内，以与第二转接套211b螺纹连接。
通过使得第二连接件22包括直螺杆221，既能够满足第二连接件22与转接部211之间的连接需求，同时，采用直螺杆221使得塔筒分片11在拼接时，能够提高拼接效率。且塔筒分片11用于容纳直螺杆221的部分为直孔段，结构简单，利于塔筒分片11的成型。
如图4至图8所示，在一些可选地实施例中，设置有直螺杆221的塔筒分片11的内壁面具有操作切口111，直螺杆221的长度方向与所在的塔筒分片11在周向X上的端面cc相交设置，塔筒分片11在操作切口111处形成有面向周向X上的端面cc设置的支撑面112，直螺杆221至少部分位于操作切口111内并抵压于支撑面112。通过上述设置，使得直螺杆221能够显露于塔筒分片11的内壁面，使得直螺杆221由塔筒分片11抽出或者 插入，便于相邻两个塔筒分片11之间的拆装。
在一些可选地实施例中，操作切口111可以为直角切口，直螺杆221的延伸方向与支撑面112相互垂直，通过上述设置，能够增加直螺杆221的螺帽与支撑面112之间的接触面积，避免直螺杆221与支撑面112点接触造成支撑面112裂开损坏的风险。
如图9以及图10所示，作为一种可选地实施方式，本申请实施例提供的塔筒段100，连接组件20还包括防护部件23，防护部件23包括防护套231，防护套231至少部分位于设置有第二连接件22的塔筒分片11内，防护套231围绕直螺杆221设置。通过设置防护套231，能够使得塔筒段100在成型时，先将直螺杆221穿过防护套231，使得直螺杆221与用于成型塔筒分片11的混凝土隔离，在混凝土初凝后将直螺杆221拔出，以在塔筒分片11内形成用于插接直螺杆221的插接孔，使得塔筒分片11在相互拼装时，直螺杆221能够插入塔筒分片11并与位于另一个塔筒分片11内的转接部211连接。
可选地，防护套231可以为柔性的橡胶保护套，当然，此为一种可选的实施方式，但不限于上述方式，在有些实施例中，也可以使得防护套231为刚性套。
如图10以及图11所示，当防护套231为刚性套时，在一些可选地实施例中，防护部件23还可以包括加强板232以及多个加强筋233，加强板232设置于防护套231在自身轴向上背离第一连接件21的一端并抵压于支撑面112，多个加强筋233在防护套231的外周间隔分布且分别与加强板232连接。通过设置加强板232以及加强筋233，能够增加塔筒分片11位于防护套231周围区域的强度，增加对直螺杆221的防护效果。
作为一种可选地实施方式，本申请实施例提供的塔筒段100，其相邻两个塔筒分片11的拼缝处填充有连接体30，连接体30用于连接相邻两个塔筒分片11，以提高塔筒段100整体的强度。连接体30具有抗剪切以及抗弯曲能力，一些可选地实施例中，连接体30可以包括环氧树脂。
本申请实施例提供的塔筒段100，相邻两个塔筒分片11能够通过连接组件20连接，并且，第一连接件21还包括锚固部212，通过增加锚固部 212，能够增加第一连接件21与所在塔筒分片11的连接面积，提高与塔筒分片11的连接强度，进而能够保证相邻两个塔筒分片11之间的连接强度，避免因第一连接件21与所在的塔筒分片11分离造成相邻塔筒分片11分离连接失效的风险，提高塔筒段100的安全性能。
同时，当第二连接件22包括直螺杆221时，本申请实施例提供的塔筒段100，其第一连接件21以及第二连接件22之间的连接方式，能够相对于采用弧形螺栓连接方式对塔架段100的生产精度降低了标准，有效避免连接组件20的第一连接件21以及第二连接件22在生产过程中不均匀错动、非人为移动等原因导致后续无法安装问题。使得塔筒段100的生产无需采用品质可控的“工厂化”生产方案。
进一步的，本申请实施例提供的塔架1，因其包括上述各实施例提供的塔筒段100，因此具有利于生产、运输以及组拼，拼装效率高且安全性能高，使其所在的风力发电机组具有较高的安全性能以及发电效益。
如图12以及图13所示，再一方面，本申请实施例还提供一种模具5，可以用于成型上述各实施例提供的塔筒段100。模具5包括模具基体以及连接组件20，模具基体包括两个以上分片模单元51以及竖向端模52，两个以上分片模单元51围绕同一轴线间隔分布，相邻两个分片模单元51之间夹持有竖向端模52，分片模单元51包括相对设置的内模511、外模512以及底模513，竖向端模52与相邻两个分片模单元51中的每个分片模单元51对接并形成浇筑空腔53。连接组件20包括第一连接件21以及第二连接件22，第一连接件21位于相邻两个分片模单元51中一者的浇筑空腔53内，第二连接件22至少部分位于相邻两个分片模单元51中另一者的浇筑空腔53内，第一连接件21包括转接部211以及锚固部212，第二连接件22穿过竖向端模52并与转接部211连接，锚固部212与转接部211背离第二连接件22的一侧连接。
本申请实施例提供的模具5，在使用时，可以通过在各分片模单元51与对应的竖向端模52形成的浇筑空腔53内浇筑混凝土，待混凝土固化后，每个浇筑空腔53内对应形成一个塔筒分片11，可将第一连接件21以及第二连接件22保留至对应成型的塔筒分片11内，使得相邻两个塔筒分片11 通过连接组件20连接，形成塔筒段100，能够满足塔筒段100的生产需求，可有效降低模具5采购成本，降低现场施工操作门槛。
并且，在成型的过程中可以待混凝土未完全凝固前且已形成用于插接第二连接件22的插接孔之后可将第二连接件22先取出，当各塔筒分片11运输至指定位置后，可以将第二连接件22插入对应塔筒分片11形成的插接孔并与相应的第一连接件21的转接部211连接，利于塔筒段100的成型，且能够保证成型后的塔筒段100的运输以及其各塔筒分片11的连接需求。
同时，由于相邻两个分片模单元51与同一个竖向端模52形成浇筑空腔53，且竖向端模52夹持在底模513、内模511及外模512中，保证了在浇筑阶段同一截面位置接触面的凹凸面接触，有利于拼装阶段实施。其定位模式使得成型后相邻两个塔筒分片11的对接面曲线咬合性高。对模具5强度要求降低，保证在塔筒段100拼装阶段可快速执行，提升工作效率。
作为一种可选地实施方式，本申请实施例提供的模具5，连接组件20的第一连接件21以及第二连接件22的结构形式可以采用上述各实施例在塔筒段100中的结构形式，在此不重复赘述。
作为一种可选地实施方式，本申请实施例提供模具5，其连接组件20也可以包括防护部件23，其防护部件23可以包括防护套231，进一步的，其防护部件23还可以包括加强板232以及加强筋233，防护套231的结构形式、加强板232的结构形式、加强筋233的结构形式以及各自彼此之间的配合关系同上述各实施例中在塔筒段100中的结构形式以及配合关系，在此不重复赘述。
本申请实施例提供的模具5，其分片模单元51以及竖向端模52的数量不做具体限制，具体可以根据待成型的塔筒分片11的数量进行设定。
作为一种可选地实施方式，设置有第二连接件22的分片模单元51的内模511上具有向外模512所在方向凸出的凸起54，第二连接件22至少部分伸入凸起54内。通过设置凸起54，能够使得形成塔筒分片11在对应的位置处形成操作切口111，形成的操作切口111形式如上述各实施例在塔筒段100中的结构形式，以利于形成塔筒分片11的过程中以及形成塔筒 分片11后对第二连接件22的拆装。
可选地，竖向端模52上设置有供第二连接件22穿过的避让孔521。
如图14所示，再一方面，本申请实施还提供一种塔筒段100的成型方法，包括如下步骤：
S100、提供模具5，模具5可以采用上述各实施例中的一者；
S200、对锚固部212以及第二连接件22的至少一者进行支护，以锁定连接组件20与竖向端模52的相对位置；
S300、向每个分片模单元51与竖向端模52形成的浇筑空腔53内浇筑浆料；
S400、待浆料固化至预定状态后，将第二连接件22取出，以与第一连接件21、模具基体以及至预定状态后的浆料形成的整体分离；
S500、待浆料完全固化后，将竖向端模52以及各分片模单元51与对应浇筑空腔53内固化后的浆料分离。
在步骤S100中，所提供的模具5可以为上述各实施例所提及的模具5中的一者。
在步骤S200中，可以仅对锚固部212进行支护，也可以仅对第二连接件22进行支护，当然，也可以同时对锚固部212以及第二连接件22进行支护，以锁定连接组件20与竖向端模52的相对位置，避免在浇筑混凝土的过程中，连接组件20掉落或者翻转等。
可选地，在对锚固部212进行支护时，可以在浇筑空腔53内设置钢筋或者预应力筋对锚固部212进行支护。
可选地，在对第二连接件22进行支护时，可以在第二连接件22所在分片模单元51的内模511上设置向外模512所在方向凸出的凸起54，第二连接件22至少部分伸入凸起54内，对第二连接件22进行支护。
可选地，在步骤S300中，在浇筑空腔53内浇筑的浆料可以为混凝土浆料，当然也可以为其他可以固化形成预定强度的塔筒分片11的浆料液。
可选地，在步骤S400中，所提及的预定状态为混凝土在初凝后、终凝前，既能够保证第二连接件22与混凝土分离，同时当第二连接件22抽出后对应区域的混凝土不会塌陷，能够保留与第二连接件22形状相匹配的配 合区。
可选地，在步骤S500中，形成的塔筒段其各塔筒分片11是分离的，便于运输，当运输至预定位置后，可以将各第二连接件22插接于相应塔筒分片11并与另一塔筒分片11内的第一连接件21的转接部211连接。
作为一种可选地实施方式，本申请实施例提供的塔筒段100的成型方法，在步骤S300之后且步骤S400之前，成型方法还包括根据预定转速旋拧第二连接件22。以避免浆料固化时将第二连接件22固定，无法拔出。具体的旋拧的转速不做数值限制，只要能够避免浆料固化时将第二连接件22固定即可。
可选地，在步骤S500中，待浆料完全固化后，将竖向端模52以及各分片模单元51与对应浇筑空腔53内固化后的浆料分离后，成型两个以上塔筒分片11。
可选地，在步骤S500后，本申请实施例提供的方法还包括，将第二连接件22插入塔筒分片11并与第二连接件21连接，以将相邻两个塔筒分片11连接。
可选地，在步骤S500后，本申请实施例提供的方法还包括在相邻两个塔筒分片11之间填充浆料，待浆料固化后以形成连接体30，连接体30用于连接相邻两个塔筒分片11。
在相邻两个塔筒分片11之间填充的浆料可以不同于步骤S300中在浇筑空腔53内浇筑的浆料。在相邻两个塔筒分片11之间填充的浆料可以为具有抗拉、抗剪强度的粘接剂。一些可选的示例中，可选为一种高强度的环氧类粘接剂，当然，此为一种可选地示例，不限于此，只要使得固化后形成的连接体30满足相邻两个塔筒分片11之间的粘接强度要求均可。
本申请实施例提供的塔筒段100的成型方法，通过执行步骤S100～步骤S500，能够成型如上述各实施例提供的塔筒段100，成型方法简单，不受厂房等限制，且使得成型的塔筒段100的相邻两个塔筒分片11之间可以通过连接组件20连接，连接强度高。同时，相邻两个塔筒分片11的对接面曲线咬合性高，当运输至现场后需要拼接时，可以将第二连接件22伸入对应的塔筒分片11并与第一连接件21的转接部211连接，拆装以及运输。
虽然已经参考优选实施例对本申请进行了描述，但在不脱离本申请的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (16)

  1. 一种塔筒段(100)，包括：
    筒段基体(10)，包括沿自身周向(X)相继分布的两个以上塔筒分片(11)；
    连接组件(20)，在所述周向(X)上，相邻两个所述塔筒分片(11)通过所述连接组件(20)连接，所述连接组件(20)包括第一连接件(21)以及第二连接件(22)，所述第一连接件(21)位于相邻两个所述塔筒分片(11)中一者的内部，所述第二连接件(22)至少部分位于相邻两个所述塔筒分片(11)中另一者的内部，所述第一连接件(21)包括转接部(211)以及锚固部(212)，所述转接部(211)与所述第二连接件(22)连接，所述锚固部(212)与所述转接部(211)背离所述第二连接件(22)的一侧连接。
  2. 根据权利要求1所述的塔筒段(100)，其中，所述锚固部(212)呈杆状且在自身延伸方向具有第一端面(212a)以及第二端面(212b)，所述第一端面(212a)面向所述转接部(211)设置，所述第一端面(212a)与所述第二端面(212b)之间的最大垂直距离(H)小于所述锚固部(212)的长度尺寸。
  3. 根据权利要求2所述的塔筒段(100)，其中，所述锚固部(212)具有至少一个折弯区(212c)；
    所述锚固部(212)至少部分沿曲线轨迹(aa)延伸，和/或，所述锚固部(212)至少部分沿折线轨迹(bb)延伸。
  4. 根据权利要求1所述的塔筒段(100)，其中，所述转接部(211)以及所述锚固部(212)彼此可拆卸连接。
  5. 根据权利要求4所述的塔筒段(100)，其中，所述转接部(211)包括第一转接套(211a)，所述锚固部(212)至少部分伸入所述第一转接套(211 a)并与所述第一转接套(211a)螺纹连接。
  6. 根据权利要求1至5任意一项所述的塔筒段(100)，其中，所述第二连接件(22)包括直螺杆(221)，所述转接部(211)包括第二转接套(211b)，所述直螺杆(221)沿自身长度方向凸出于所在的所述塔筒分片(11)并伸入所述第二转接套(211b)内，以与所述第二转接套(211b)螺纹连接。
  7. 根据权利要求6所述的塔筒段(100)，其中，设置有所述直螺杆(221)的所述塔筒分片(11)的内壁面具有操作切口(111)，所述直螺杆(221)的长度方向与所在的所述塔筒分片(11)在所述周向(X)上的端面(cc)相交设置，所述塔筒分片(11)在所述操作切口(111)处形成有面向所述端面(cc)设置的支撑面(112)，所述直螺杆(221)至少部分位于所述操作切口(111)内并抵压于所述支撑面(112)。
  8. 根据权利要求6所述的塔筒段(100)，其中，所述连接组件(20)还包括防护部件(23)，所述防护部件(23)包括防护套(231)，所述防护套(231)至少部分位于设置有所述第二连接件(22)的所述塔筒分片(11)内，所述防护套(231)围绕所述直螺杆(221)设置。
  9. 根据权利要求8所述的塔筒段(100)，其中，所述防护部件(23)还包括加强板(232)以及多个加强筋(233)，所述加强板(232)设置于所述防护套(231)在自身轴向上背离所述第一连接件(21)的一端并抵压于所述支撑面(112)，多个所述加强筋(233)在所述防护套(231)的外周间隔分布且分别与所述加强板(232)连接。
  10. 根据权利要求1至5任意一项所述的塔筒段(100)，其中，相邻两个所述塔筒分片(11)之间所连接的所述连接组件(20)的数量为多个，多个所述连接组件(20)在所述筒段基体(10)的高度方向(Y)上间隔分布。
  11. 一种塔架(1)，包括两个以上如权利要求1至10任意一项所述的塔筒段(100)，两个以上所述塔筒段(100)同轴设置且相邻两个所述塔筒段(100)相互连接。
  12. 一种风力发电机组，包括如权利要求11所述的塔架(1)。
  13. 一种模具(5)，包括：
    模具基体，包括两个以上分片模单元(51)以及竖向端模(52)，两个以上所述分片模单元(51)围绕同一轴线间隔分布，相邻两个所述分片模单元(51)之间夹持有所述竖向端模(52)，所述分片模单元(51)包括相对设置的内模(511)、外模(512)以及底模(513)，所述竖向端模(52)与相邻两个所述分片模单元(51)中的每个所述分片模单元(51)对接并形成浇筑空腔(53)；
    连接组件(20)，包括第一连接件(21)以及第二连接件(22)，所述第一连接件(21)位于相邻两个所述分片模单元(51)中一者的所述浇筑空腔(53)内，所述第二连接件(22)至少部分位于相邻两个所述分片模单元(51)中另一者的所述浇筑空腔(53)内，所述第一连接件(21)包括转接部(211)以及锚固部(212)，所述第二连接件(22)穿过所述竖向端模(52)并与所述转接部(211)连接，所述锚固部(212)与所述转接部(211)背离所述第二连接件(22)的一侧连接。
  14. 根据权利要求13所述的模具(5)，其中，设置有所述第二连接件(22)的所述分片模单元(51)的所述内模(511)上具有向所述外模(512)所在方向凸出的凸起(54)，所述第二连接件(22)至少部分伸入所述凸起(54)内。
  15. 一种塔筒段(100)的成型方法，包括：
    提供如权利要求13或14所述的模具(5)；
    对所述锚固部(212)以及所述第二连接件(22)的至少一者进行支护，以锁定所述连接组件(20)与所述竖向端模(52)的相对位置；
    向每个所述分片模单元(51)与所述竖向端模(52)形成的浇筑空腔(53)内浇筑浆料；
    待所述浆料固化至预定状态后，将所述第二连接件(22)取出，以与所述第一连接件(21)、所述模具基体以及至预定状态后的所述浆料形成的整体分离；
    待所述浆料完全固化后，将所述竖向端模(52)以及各所述分片模单元(51)与对应所述浇筑空腔(53)内固化后的所述浆料分离。
  16. 根据权利要求15所述的成型方法，其中，在所述向每个所述分片模单元(51)与所述竖向端模(52)形成的浇筑空腔(53)内浇筑浆料之后且所述待所述浆料固化至预定状态后，将所述第二连接件(22)与所述第一连接件(21)、所述模具基体以及至预定状态后的所述浆料分离的步骤之前，所述成型方法还包括：
    根据预定转速旋拧所述第二连接件(22)。
PCT/CN2021/141691 2021-09-27 2021-12-27 塔筒段、塔架、风力发电机组、模具以及成型方法 WO2023045157A1 (zh)

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