CN113217294B - Tower bottom section structure, tower and wind driven generator - Google Patents
Tower bottom section structure, tower and wind driven generator Download PDFInfo
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- CN113217294B CN113217294B CN202110713486.3A CN202110713486A CN113217294B CN 113217294 B CN113217294 B CN 113217294B CN 202110713486 A CN202110713486 A CN 202110713486A CN 113217294 B CN113217294 B CN 113217294B
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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
- F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
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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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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The application provides a tower bottom section structure, a tower and a wind driven generator. The tower bottom section structure comprises a first flange plate, a second flange plate, a connecting assembly and a supporting assembly. The connecting assembly is detachably assembled between the first flange plate and the second flange plate and used for limiting the displacement of the first flange plate along the vertical direction. The support structure includes a plurality of support assemblies. The upper end of the supporting component is connected with the first flange plate, the lower end of the supporting component is used for supporting the ground, and the supporting component is used for limiting the displacement of the first flange plate along the radial direction. The tower comprises a tower body and a tower bottom section structure. The wind generator includes a tower. So set up, make and compare in traditional pylon bottom segment structure, can dismantle or assemble, convenient transportation practices thrift and uses steel volume, reduce cost.
Description
Technical Field
The application relates to the field of civil engineering, in particular to a tower bottom section structure, a tower and a wind driven generator.
Background
In recent years, the capacity of wind driven generators in China is always at the forefront of the world. The tower is used as a supporting structure of the wind power generator and has various types, such as: steel towers, concrete towers, wooden towers, and the like. Among them, the steel tower is the most widely used and most widely used as a conventional tower type.
The tower is a high-rise structure. The upper part of the tower body is of a closed circular section structure. The tower bottom section structure is the most complex and largest part of the tower that is used to support the tower body and transfer the load of the tower body to the tower foundation. Thus, the tower base section structure is typically designed as a tower section structure with a large diameter and wide and thick side walls. However, such a tower section structure uses a large amount of steel and is inconvenient to transport.
Disclosure of Invention
The application provides a tower bottom section structure, a tower and a wind driven generator which aim at saving steel consumption.
The present application provides a tower bottom section structure for supporting a tower body, wherein the tower bottom section structure comprises: a first flange plate for supporting the tower body, a second flange plate located below the first flange plate, and a connection assembly and a support structure removably assembled between the first flange plate and the second flange plate;
the connecting assembly is detachably assembled between the first flange plate and the second flange plate and used for limiting the displacement of the first flange plate along the vertical direction;
the supporting structure comprises a plurality of supporting assemblies which are connected to the first flange plate along the circumferential direction of the first flange plate, the upper ends of the supporting assemblies are connected with the first flange plate, the lower ends of the supporting assemblies are used for supporting the first flange plate on the ground, and the supporting assemblies are used for limiting the displacement of the first flange plate along the radial direction.
Optionally, the first flange plate is circumferentially provided with a plurality of first connection holes, the second flange plate is circumferentially provided with a plurality of second connection holes corresponding to the first connection holes in number, and the first connection holes and the second connection holes are in one-to-one correspondence in the vertical direction;
the connecting assembly comprises a plurality of first connecting pieces corresponding to the number of the first connecting holes, and two ends of each first connecting piece are respectively penetrated through the corresponding first connecting holes and the corresponding second connecting holes;
the first end of the first connecting piece penetrates through the first connecting hole to be connected with the first flange plate, and the second end of the first connecting piece penetrates through the second connecting hole in the corresponding position to be connected with the second flange plate.
Optionally, the tower bottom section structure includes an intermediate connection assembly detachably connected between the first flange plate and the second flange plate for leveling a load amount between the first flange plate and the second flange plate.
Optionally, the intermediate connection assembly includes a pressure arm assembly, the pressure arm assembly includes a plurality of first pressure arm pieces and a plurality of second pressure arm pieces, and is a plurality of first pressure arm pieces are along first flange board circumference interval sets, and is a plurality of second pressure arm pieces are along second flange board circumference interval sets.
Optionally, the middle connecting assembly includes a cable assembly connected to the pressure arm assembly, the cable assembly includes a first connecting plate and a second connecting plate, the first pressure arm is connected between the first flange plate and the second connecting plate, and the second pressure arm is connected between the second flange plate and the first connecting plate.
Optionally, the first pressure arm includes a first horizontal cantilever and at least two first vertical cantilevers, one end of the first horizontal cantilever is connected to the second connecting plate and extends radially, and the two first vertical cantilevers are spaced apart from the second connecting plate and are connected between the first flange plate and the first horizontal cantilever.
Optionally, the second pressure arm includes a second horizontal cantilever and at least two second vertical cantilevers, one end of the second horizontal cantilever is connected to the first connecting plate and extends radially, and the two second vertical cantilevers are spaced apart from the first connecting plate and are connected to the second flange plate and between the second horizontal cantilevers.
Optionally, the first arm pressing member and the second arm pressing member are both in an F-shaped structure.
Optionally, the first connecting plate is provided with a plurality of first mounting holes, the second connecting plate is provided with a plurality of second mounting holes corresponding to the number of the first mounting holes, and the first mounting holes and the second mounting holes are in one-to-one correspondence in the vertical direction;
the inhaul cable assembly comprises a plurality of second connecting pieces corresponding to the first mounting holes in number, and two ends of each second connecting piece penetrate through the corresponding first mounting hole and the corresponding second mounting hole in position respectively;
the first end of the second connecting piece penetrates through the first mounting hole to be connected with the first connecting plate, and the second end of the second connecting piece penetrates through the second mounting hole to be connected with the second connecting plate.
Optionally, the plurality of support assemblies and the plurality of first connecting pieces are arranged in a staggered manner along the circumferential direction of the first flange plate.
Optionally, the support assembly includes a support column, a clamp plate and an embedded part, a first end of the support column is connected to the first flange plate through the clamp plate, and a second end of the support column is connected to the ground through the embedded part.
Optionally, the clamping plate includes a groove portion formed by recessing away from the first flange plate, the groove portion is in clamping fit with the edge of the first flange plate, and a gap is formed between the groove portion and the first flange plate for limiting the radial displacement of the first flange plate.
The present application also provides a tower comprising a tower body and a tower bottom section structure as described above.
The application also provides a wind driven generator, which comprises the tower, wherein the tower is used for supporting the wind driven generator.
The application provides a tower bottom section structure, a tower and a wind driven generator. The tower bottom section structure comprises a first flange plate, a second flange plate, a connecting assembly and a supporting assembly. The connecting assembly is detachably assembled between the first flange plate and the second flange plate and used for limiting the displacement of the first flange plate along the vertical direction. The support structure includes a plurality of support assemblies. The upper end of the supporting component is connected with the first flange plate, the lower end of the supporting component is used for supporting the ground, and the supporting component is used for limiting the displacement of the first flange plate along the radial direction. So set up, make and compare in traditional pylon bottom segment structure, can dismantle or assemble, convenient transportation practices thrift and uses steel volume, reduce cost.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
FIG. 1 is a schematic structural view of a tower according to the present application;
FIG. 2 is a schematic partial structural view of the tower shown in FIG. 1;
FIG. 3 shows a top view of the tower shown in FIG. 1;
FIG. 4 shows a side view of the tower shown in FIG. 1;
FIG. 5 is a schematic view of a portion of the mid-span connection assembly of the tower shown in FIG. 1.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "a number" means two or more. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
The present application provides a tower bottom section structure for supporting a tower body. The tower bottom section structure comprises a first flange plate for supporting the tower main body, a second flange plate positioned below the first flange plate, and a connecting assembly and a supporting structure which are detachably assembled between the first flange plate and the second flange plate. The connecting assembly is detachably assembled between the first flange plate and the second flange plate and used for limiting the displacement of the first flange plate along the vertical direction. The support structure includes a plurality of support assemblies attached to the first flange plate along a perimeter of the first flange plate. The upper end of the supporting component is connected with the first flange plate, the lower end of the supporting component is used for supporting on the ground, and the supporting component is used for limiting the displacement of the first flange plate along the radial direction. So set up, make and compare in traditional pylon bottom segment structure, can dismantle or assemble, convenient transportation practices thrift and uses steel volume, reduce cost.
Fig. 1 shows a schematic structural view of a tower 1 provided by the present application. Fig. 2 shows a schematic view of a part of the structure of the tower 1 shown in fig. 1. With reference to fig. 1 and 2, the wind turbine includes a tower 1. The tower 1 is used to support a wind turbine. The tower 1 comprises a tower body 2 and a tower bottom section structure 3. A tower bottom section structure 3 for supporting the tower body 2. The tower 1 is a high-rise structure, and the tower body 2 is a closed circular section structure. The tower bottom section structure 3 is the most complex and largest part of the load in the tower 1, which is used to support the tower body 2 and transfer the load of the tower body 2 to the tower foundation. Thus, the tower base section structure 3 is typically designed as a tower section structure with a large diameter and wide and thick side walls. However, such a tower section structure uses a large amount of steel and is inconvenient to transport.
Therefore, in order to reduce the amount of steel used, the design of the tower bottom section structure 3 in the present embodiment includes: a first flange plate 4 for supporting the tower body 2, a second flange plate 5 located below the first flange plate 4, and a connecting assembly 6 and a support structure 7 detachably assembled between the first flange plate 4 and the second flange plate 5. Wherein the connecting assembly 6 is detachably assembled between the first flange plate 4 and the second flange plate 5 for limiting the displacement of the first flange plate 4 in the vertical direction. The supporting structure 7 includes a plurality of supporting members 8 connected to the first flange plate 4 along a circumferential direction of the first flange plate 4, an upper end of the supporting member 8 is connected to the first flange plate 4, a lower end of the supporting member 8 is used for supporting on the ground, and the supporting member 8 is used for limiting displacement of the first flange plate 4 in a radial direction. The first flange plate 4 is fixedly connected to the tower body 2 by a flange plate provided at the bottom end of the tower body 2. In this embodiment, the connecting assembly 6 is connected between the first flange plate 4 and the second flange plate 5, and is used for supporting the tower body 2 while limiting the vertical displacement of the first flange plate 4 together with the second flange plate 5. Moreover, the support structure 7 is connected between the first flange plate 4 and the ground, so that the first flange plate 4 can be prevented from inclining in the radial direction, and the stabilization effect of the tower bottom section structure 3 is good. In addition, the support structure 7 comprises a plurality of support members 8, which can transfer part of the load of the tower 1 to the tower foundation and another part of the load of the tower 1 to the connected anchor bolt structure, which can reduce the load transferred from the tower 1 to the anchor bolt structure. And, a plurality of support assemblies 8 form an open space therebetween, which facilitates the staff to enter the inside of the tower 1 from the open space. So set up, compare in traditional pylon base segment structure, pylon base segment structure 3 in this embodiment can dismantle or assemble, convenient transportation, the using-less steel volume. In some embodiments, the first flange plate 4 may be an L-shaped flange plate or a T-shaped flange plate, as the case may be. In some embodiments, the second flange plate 5 may be an L-shaped flange plate or a T-shaped flange plate, as the case may be.
It should be noted that, the tower door of the tower bottom section structure 3 in this embodiment may not be provided according to actual needs, and is designed to enter from the open space of the tower bottom section structure 3 and enter the inside of the tower 1 through the first flange plate 4, so as to avoid the opening of the tower 1 and reduce the steel consumption. In addition, the number of polygonal sides of the tower bottom section structure 3 can be adjusted according to the design requirement of the unit, and the design flexibility is improved.
Fig. 3 shows a top view of the tower 1 shown in fig. 1. Fig. 4 shows a side view of the tower 1 shown in fig. 1. With reference to fig. 3 and 4, the first flange plate 4 is provided with a plurality of first connection holes 9 along the circumferential direction, and the second flange plate 5 is provided with a plurality of second connection holes 10 corresponding to the number of the first connection holes 9 along the circumferential direction. The positions of the first connection holes 9 and the second connection holes 10 correspond to each other in a vertical direction. The connecting assembly 6 includes a plurality of first connecting pieces 11 corresponding to the number of the first connecting holes 9. Two ends of the first connecting piece 11 are respectively penetrated through the first connecting hole 9 and the second connecting hole 10 which correspond to each other in position. A first end of the first connector 11 is connected to the first flange plate 4 through the first connection hole 9. The second end of the first connecting member 11 passes through the second connecting hole 10 at the corresponding position to be connected with the second flange plate 5. In this embodiment, the projections of the center of the first flange plate 4 and the center of the second flange plate 5 in the vertical direction coincide on the horizontal plane, so that the overall stability of the tower 1 is better. The first connection holes 9 and the second connection holes 10 correspond one-to-one in the vertical direction so as to connect the first connection members 11 between the first flange plate 4 and the second flange plate 5. The first connecting member 11 may be a cable system, which limits the vertical displacement of the first flange plate 4 by cable tension. In some embodiments, the first connecting member 11 includes a first cable 12, a first pad 13, and a first locking head 14 at two ends of the first cable 12. Specifically, after the two ends of the first cable 12 respectively penetrate into the first connection hole 9 and the second connection hole 10, the two first spacers 13 are respectively penetrated through. Wherein, a first gasket 13 is arranged at the first end of the first inhaul cable 12 in a penetrating way and connected with the upper surface of the first flange plate 4; another first gasket 13 penetrates through the second end of the first inhaul cable 12 and is connected with the lower surface of the second flange plate 5. And then two first lock heads 14 are respectively arranged at two ends of the first inhaul cable 12 in a penetrating way and are respectively in contact connection with the two first gaskets 13. In this way, the first connecting piece 11 is connected with the first flange plate 4 and the second flange plate 5 more firmly. And the cost of the first connecting piece 11 is low, and the overall cost of the tower bottom section structure 3 is obviously reduced.
In some embodiments, the plurality of support members 8 and the plurality of first connectors 11 are staggered along the circumference of the first flange plate 4. In this embodiment, the plurality of supporting members 8 and the plurality of first connecting members 11 are disposed alternately in the circumferential direction of the first flange plate 4. Wherein a plurality of support members 8 are provided at the edge of the first flange plate 4. The upper end of the support assembly 8 supports the first flange plate 4 and the lower end thereof is connected to the tower foundation. When the first flange plate 4 and the tower body 2 are displaced from the equilibrium position, the support assembly 8 returns the first flange plate 4 and the tower body 2 to the equilibrium position by acting on the first flange plate 4. In addition, it should be noted that, a part of the load of the tower main body 2 can be directly transmitted to the tower foundation through the support assembly 8, and another part can be transmitted to the lower anchor bolt structure, so that the load transmitted from the tower main body 2 to the lower anchor bolt structure can be reduced.
In some embodiments, the support assembly 8 includes a support post 81, a clamp plate 82, and an embedment 83. A first end of the support column 81 is connected to the first flange plate 4 by a clamping plate 82. The second end of the support column 81 is connected to the ground through an embedment 83. In this embodiment, the lower ends of the supporting columns 81 are connected to the tower foundation by embedment members 83, and the upper end supporting clamp plates 82 are connected in contact with the first flange plate 4. So, make the steadiness of first flange plate 4 better, improve the overall stability of pylon bottom segment structure 3. In some embodiments, the support posts 81 are in a ladder-type configuration. Therefore, the supporting column 81 and the first flange plate 4 have two stress points, and the supporting column 81 and the ground also have two stress points, so that the receiving effect is good.
In some embodiments, clamp plate 82 includes a recessed portion 84 recessed away from first flange plate 4, recessed portion 84 snap-fits against an edge of first flange plate 4, and recessed portion 84 has a clearance with first flange plate 4 to limit radial displacement of first flange plate 4. A gap is left between the bottom wall of the groove portion 84 and the edge of the first flange plate 4, so that when the first flange plate 4 is inclined beyond a set tolerance, the bottom wall of the groove portion 84 will contact the edge of the first flange plate 4, thereby bringing the first flange plate 4 back to a balanced state again and improving the stability of the first flange plate 4.
Fig. 5 shows a schematic view of a part of the intermediate connecting assembly 15 of the tower 1 shown in fig. 1. As shown in fig. 5, the tower bottom section structure 3 includes an intermediate connecting assembly 15 detachably connected between the first flange plate 4 and the second flange plate 5 for leveling the load amount between the first flange plate 4 and the second flange plate 5. In this embodiment, by connecting the intermediate connection member 15 between the first flange plate 4 and the second flange plate 5, it is possible to transmit the load amount borne by the first flange plate 4 to the second flange plate 5. So, the load capacity of balanced first flange board 4 and second flange board 5 makes the holistic stability of pylon base segment structure 3 better, supports the effectual of pylon main part 2. It should be noted that, when the tower frame 1 is in a balanced state, the middle connection assembly 15 is a main loaded cable system in the whole self-balancing system.
In some embodiments, the intermediate connection assembly 15 includes a press arm assembly 16. The pressure arm assembly 16 includes a plurality of first pressure arm members 17 and a plurality of second pressure arm members 18. A plurality of first presser arm members 17 are provided at intervals along the circumferential direction of the first flange plate 4. A plurality of second crimping members 18 are circumferentially spaced along the second flange plate 5. In this embodiment, a plurality of first presser arm members 17 and a plurality of second presser arm members 18 are located between the first flange plate 4 and the second flange plate 5. A plurality of first crimping members 17 are uniformly attached to the lower surface of the first flange plate 4. A plurality of second crimping pieces 18 are uniformly attached to the upper surface of the second flange plate 5. In addition, the plurality of first pressure arm pieces 17 and the plurality of second pressure arm pieces 18 are arranged at intervals in a crossing manner in space, so that the plurality of first pressure arm pieces 17 and the plurality of second pressure arm pieces 18 are uniformly stressed. So, make the effect of the load capacity of leveling first flange board 4 and second flange board 5 better, and further make the holistic stability of tower bottom segment structure 3 better.
In some embodiments, the intermediate connection assembly 15 includes a cable assembly 19 connected to the pressure arm assembly 16. The cable assembly 19 includes a first connecting plate 20 and a second connecting plate 21. A plurality of first compression arm members 17 are connected between the first flange plate 4 and the second connecting plate 21. A plurality of second crimping members 18 are connected between the second flange plate 5 and the first connecting plate 20. In this embodiment, the upper and lower connection plates of the cable assembly 19 are respectively connected to the plurality of second presser members 18 and the plurality of first presser members 17. The inhaul cable assembly 19 and the pressure arm assembly 16 are connected to form a whole, and are main stress members together, so that the transmission of vertical load is realized. Specifically, the load borne by the first flange plate 4 is transferred to the second flange plate 5 through the cable assembly 19, the first pressure arm pieces 17 and the second pressure arm pieces 18, so that the load capacity of the first flange plate 4 and the second flange plate 5 is leveled, and the stability of the whole tower bottom section structure 3 is better.
In some embodiments, the first connector plate 20 is provided with a plurality of first mounting holes 26. The second connecting plate 21 is provided with a plurality of second mounting holes 27 corresponding to the number of the first mounting holes 26. The first mounting holes 26 and the second mounting holes 27 are positioned in one-to-one correspondence in the vertical direction. The cable assembly 19 includes a plurality of second links 28 corresponding to the number of first mounting holes 26. The two ends of the second connecting piece 28 are respectively arranged through the first mounting hole 26 and the second mounting hole 27 corresponding to the positions. A first end of the second connector 28 passes through the first mounting hole 26 to be connected to the first connecting plate 20, and a second end of the second connector 28 passes through the second mounting hole 27 to be connected to the second connecting plate 21. In this embodiment, by providing a plurality of first mounting holes 26 on the first connecting plate 20 and a plurality of second mounting holes 27 on the second connecting plate 21, it is convenient to connect a plurality of second connecting members 28 between the first connecting plate 20 and the second connecting plate 21, so that the cable assembly 19 is more stable as a whole. In addition, the effect of bearing the load capacity is good in the process of transferring the load capacity of the first flange plate 4.
In some embodiments, the second connecting member 28 includes a second cable 29, a second spacer 30, and a second locking head 31 at two ends of the second cable 29. Specifically, two ends of the second cable 29 are inserted into the first mounting hole 26 and the second mounting hole 27, and then two second spacers 30 are inserted into the second mounting hole 27. Wherein, a second gasket 30 is arranged at the first end of the second cable 29 in a penetrating way and connected with the upper surface of the first connecting plate 20; the other second spacer 30 is inserted into the second end of the second cable 29 and connected to the lower surface of the second connecting plate 21. And then two second lock heads 31 are respectively arranged at two ends of the second inhaul cable 29 in a penetrating way and are respectively connected with two second gaskets 30 in a contact way. In this way, the second connecting piece 28 is connected with the first connecting plate 20 and the second connecting plate 21 more stably.
Referring to fig. 2, in some embodiments, the first connecting plate 20 has a plurality of first mounting holes 26, and the second connecting plate 21 has a plurality of second mounting holes 27 arranged in a circular configuration.
In some embodiments, the first presser arm member 17 comprises a first horizontal cantilever 22 and at least two first vertical cantilevers 23. One end of the first horizontal cantilever 22 is connected to the second connecting plate 21 and extends radially. Two first vertical cantilevers 23 are arranged at intervals in a direction away from the second connecting plate 21 and connected between the first flange plate 4 and the first horizontal cantilever 22. In this embodiment, the first compression arm member 17 is in an F-shaped structure rotated 90 ° counterclockwise, so that the load of the first flange plate 4 is effectively transmitted to the cable assembly 19, and the connection between the first flange plate 4 and the second connecting plate 21 is more stable.
In some embodiments, the second compression arm member 18 includes a second horizontal cantilever arm 24 and at least two second vertical cantilever arms 25. One end of the second horizontal cantilever 24 is connected to the first connecting plate 20 and extends radially. Two second vertical cantilevers 25 are arranged at a distance from the first connection plate 20 and connected between the second flange plate 5 and the second horizontal cantilever 24. In this embodiment, the second compression arm member 18 is in an F-shaped structure rotated clockwise by 90 °, so that the load of the cable assembly 19 is effectively transmitted to the second flange plate 5, and the connection between the second flange plate 5 and the first connection plate 20 is more stable.
In some embodiments, the first compression arm member 17 and the second compression arm member 18 are both in an F-shaped configuration. The first pressure arm member 17 has two force points to connect with the first flange plate 4, so that the force of the first pressure arm member 17 is good. The second pressure arm member 18 has two force points to connect with the second flange plate 5, so that the force of the second pressure arm member 18 is good. And then make the effect that the load capacity of first flange board 4 transmitted to second flange board 5 better, the holistic stability of pylon bottom segment structure 3 is better. In some embodiments, the first and second clamping arm members 17 and 18 may also be L-shaped to transfer the load of the first flange plate 4 to the second flange plate 5. It should be noted that the L-shaped pressing arm needs to be designed to be wider and thicker than the F-shaped pressing arm so as to sufficiently bear the load transferred by the first flange plate 4.
In the implementation process of the tower frame 1, the first guy cable 12 of the first connecting piece 11 is firstly inserted into the second connecting hole 10 of the second flange plate 5, and the first gasket 13 and the first lock head 14 are sequentially inserted into the lower end of the first connecting piece 11 and fastened, so that the first connecting piece 11 and the second flange plate 5 are fixed. The fixing mode can be constructed according to the traditional anchor bolt structure construction method.
And further, finishing foundation reinforcement according to a foundation construction drawing. And then, constructing the embedded part 83 at the rooting part of the reserved support structure 7 according to the design, and pouring and maintaining the tower foundation according to the traditional foundation construction method so as to avoid the damage to the tower foundation after the embedded part 83 is constructed.
Further, at least two second vertical cantilevers 25 of the second compression arm members 18 are welded to the second flange plate 5.
Further, the first flange plate 4 and the first compression arm member 17 which are welded in the workshop in advance are hoisted to the upper side of the second flange plate 5, and the installation of the first connecting member 11 and the first flange plate 4 and the preassembly of the intermediate connecting member 15 are carried out according to a cable construction drawing. And then, performing cable pre-tightening on the connecting assembly 6 and the middle connecting assembly 15 according to the sequence indicated by the construction instruction.
Further, the lower ends of the supporting columns 81 and the embedded parts 83 are connected in a conventional design mode. In some embodiments, the support posts 81 and the embedments 83 may be connected by welding.
Further, the tower body 2 is hoisted. The flange plate at the bottom end of the tower body 2 is connected to the first flange plate 4. When every section of tower main part 2 hoists, need to adjust coupling assembling 6 and 15 pretightning forces of middle coupling assembling to adjust the balance, install interim splint on support column 81 simultaneously.
And further, hoisting the wind wheel and the engine room. In the hoisting process, the pretightening force and balance of the connecting component 6 and the middle connecting component 15 are gradually adjusted by means of a crane.
Finally, the clamping plate 82 is welded, and a gap is designed between the clamping plate 82 and the first flange plate 4.
In addition, it should be noted that, in the installation and hoisting process, the construction and hoisting instruction must be strictly performed, and the construction and hoisting order cannot be changed at will.
The technical solutions disclosed in the embodiments of the present application can complement each other without generating conflicts.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (13)
1. A tower bottom section structure for supporting a tower body, the tower bottom section structure comprising: a first flange plate for supporting the tower body, a second flange plate located below the first flange plate, and a connection assembly and a support structure removably assembled between the first flange plate and the second flange plate;
the connecting assembly is detachably assembled between the first flange plate and the second flange plate and used for limiting the displacement of the first flange plate along the vertical direction;
the supporting structure comprises a plurality of supporting assemblies connected to the first flange plate along the circumferential direction of the first flange plate, the upper ends of the supporting assemblies are connected with the first flange plate, the lower ends of the supporting assemblies are used for supporting on the ground, and the supporting assemblies are used for limiting the displacement of the first flange plate along the radial direction;
the connection assembly comprises a plurality of first connectors; the plurality of support assemblies and the plurality of first connecting pieces are arranged in a staggered mode along the circumferential direction of the first flange plate;
the plurality of supporting assemblies and the plurality of first connecting pieces are arranged in parallel along the vertical direction.
2. The tower bottom section structure of claim 1, wherein the first flange plate is circumferentially provided with a plurality of first connection holes, the second flange plate is circumferentially provided with a plurality of second connection holes corresponding to the number of the first connection holes, and the first connection holes and the second connection holes are positioned in one-to-one correspondence in a vertical direction;
the connecting assembly comprises a plurality of first connecting pieces corresponding to the number of the first connecting holes, and two ends of each first connecting piece are respectively penetrated through the corresponding first connecting holes and the corresponding second connecting holes;
the first end of the first connecting piece penetrates through the first connecting hole to be connected with the first flange plate, and the second end of the first connecting piece penetrates through the second connecting hole in the corresponding position to be connected with the second flange plate.
3. The tower bottom section structure of claim 1, comprising an intermediate connection assembly removably connected between the first and second flange plates for leveling a load capacity between the first and second flange plates.
4. The tower bottom section structure of claim 3, wherein the intermediate connection assembly comprises a compression arm assembly including a plurality of first compression arm members circumferentially spaced along the first flange plate and a plurality of second compression arm members circumferentially spaced along the second flange plate.
5. The tower bottom section structure of claim 4, wherein the intermediate connection assembly comprises a cable assembly connected to the pressure arm assembly, the cable assembly comprising a first connecting plate and a second connecting plate, a plurality of the first pressure arms connected between the first flange plate and the second connecting plate, and a plurality of the second pressure arms connected between the second flange plate and the first connecting plate.
6. The tower bottom section structure of claim 5, wherein the first pressure arm member comprises a first horizontal cantilever and at least two first vertical cantilevers, one end of the first horizontal cantilever being connected to the second connecting plate and extending radially, the two first vertical cantilevers being spaced apart in a direction away from the second connecting plate and connected between the first flange plate and the first horizontal cantilever.
7. The tower bottom section structure of claim 5, wherein the second pressure arm member comprises a second horizontal cantilever and at least two second vertical cantilevers, one end of the second horizontal cantilever is connected to the first connection plate and extends radially, and the two second vertical cantilevers are spaced apart in a direction away from the first connection plate and connected between the second flange plate and the second horizontal cantilever.
8. The tower bottom section structure of claim 4, wherein the first compression arm member and the second compression arm member are each in an F-shaped configuration.
9. The tower bottom section structure of claim 5, wherein the first connecting plate is provided with a plurality of first mounting holes, the second connecting plate is provided with a plurality of second mounting holes corresponding to the number of the first mounting holes, and the first mounting holes and the second mounting holes are positioned in one-to-one correspondence along a vertical direction;
the inhaul cable assembly comprises a plurality of second connecting pieces corresponding to the first mounting holes in number, and two ends of each second connecting piece penetrate through the corresponding first mounting hole and the corresponding second mounting hole in position respectively;
the first end of the second connecting piece penetrates through the first mounting hole to be connected with the first connecting plate, and the second end of the second connecting piece penetrates through the second mounting hole to be connected with the second connecting plate.
10. The tower bottom section structure of claim 1, wherein the support assembly comprises a support post, a clamp plate, and an embedment, a first end of the support post being connected to the first flange plate by the clamp plate, a second end of the support post being connected to ground by the embedment.
11. The tower bottom section structure of claim 10, wherein the clamping plate includes a recessed groove portion recessed away from the first flange plate, the recessed groove portion snap-fits against an edge of the first flange plate, and the recessed groove portion has a clearance from the first flange plate for limiting radial displacement of the first flange plate.
12. A tower comprising a tower body and a tower bottom section structure according to any of the claims 1-11 above.
13. A wind power generator comprising a tower as claimed in claim 12 for supporting the wind power generator.
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| CN202110713486.3A CN113217294B (en) | 2021-06-25 | 2021-06-25 | Tower bottom section structure, tower and wind driven generator |
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| CN202110713486.3A CN113217294B (en) | 2021-06-25 | 2021-06-25 | Tower bottom section structure, tower and wind driven generator |
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| CN113217294B true CN113217294B (en) | 2022-07-01 |
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