CN221220687U - Multifunctional built-in stiffening plate for tower barrel of offshore wind turbine generator - Google Patents
Multifunctional built-in stiffening plate for tower barrel of offshore wind turbine generator Download PDFInfo
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- CN221220687U CN221220687U CN202322970305.2U CN202322970305U CN221220687U CN 221220687 U CN221220687 U CN 221220687U CN 202322970305 U CN202322970305 U CN 202322970305U CN 221220687 U CN221220687 U CN 221220687U
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- stiffening
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Abstract
The utility model provides a multifunctional built-in stiffening plate of a tower barrel of an offshore wind turbine, which comprises a plurality of stiffening plates fixedly connected in the tower barrel of the offshore wind turbine, wherein the stiffening plates are positioned in the middle of a barrel section, a climbing ladder is connected between two adjacent stiffening plates through bolts, and the stiffening plates are provided with a first transmission cable hole and a plurality of second transmission cable holes; the first transmission cable hole and the second transmission cable hole arranged on the stiffening plate can fix the transmission cable penetrating through the cylindrical shell section, so that welding of the transmission cable fixing piece is avoided; the stiffening plate provides support for the climbing ladder, no climbing ladder fixing piece is required to be welded in the fan tower barrel, space is saved, and construction difficulty is reduced; the stiffening plate is connected with the climbing ladder through bolts, so that the maintenance is convenient.
Description
Technical Field
The utility model relates to the technical field of wind generating sets, in particular to a multifunctional built-in stiffening plate for a tower barrel of an offshore wind generating set.
Background
With the rapid consumption of traditional fossil fuels such as coal, petroleum and the like, the problems of gradual environmental destruction, increasingly shortage of energy sources, rapid climate change and the like are paid attention to by various national governments, and the call for the strong development of renewable energy sources is continuously increased. Wind energy is a renewable energy source with large reserve, easy capture and no pollution, and the wind power generation technology is mature, relatively low in cost, safe and reliable in operation and small in occupied area, has very wide development prospect, and has important significance for realizing large-scale utilization of wind energy in China and even global sustainable development.
The wind turbine generator tower structure is a tubular bearing structure for connecting a cabin with a foundation in a wind turbine generator, not only supports the weight of upper structures such as blades, hubs and cabins, but also needs to bear the action of various external loads, provides a platform for the related personnel to install, overhaul, maintain and other operations, and the cost of the wind turbine generator tower structure is usually 10% -20% of the cost of the whole wind turbine system. A series of dynamic loads acting on the tower, such as: wind load, earthquake load and the like can cause strong vibration, so that fatigue damage, buckling damage, even bending fracture and collapse of the tower barrel structure can be caused, and huge economic loss is caused. Therefore, the design and manufacture of the tower structure of the wind turbine generator have great influence on the safe and reliable operation and cost expense of the wind power generation system.
Offshore wind power has developed very rapidly in recent years because it does not occupy valuable land resources, does not disturb the people, has superior transportation and hoisting conditions, and has more abundant offshore wind energy resources than land. At present, the main stream of the tower of the offshore wind turbine is in a three-blade wind wheel, a horizontal shaft and a frustum-shaped steel tower, and belongs to a high-rise slender thin-shell structure. However, the offshore wind turbine generator is also more severe in the environment, and the influence of factors such as waves, sea ice and corrosion is also considered on the basis of wind and earthquake, so that the strength, the rigidity and the stability of the tower structure of the wind turbine generator are ensured to meet the requirements, and the offshore wind turbine generator has very important effect on the normal operation of the wind turbine generator.
Considering the complexity of the construction of the offshore wind farm and the construction requirement of the large-scale offshore wind farm in China, and combining the defects of fatigue resistance, buckling resistance and bending resistance of the original offshore wind turbine tower structure, a safe, reliable, economical and reasonable tower main body structure reinforcing scheme is required to be provided, so that the strength and the rigidity of the tower structure are effectively increased to cope with complex and changeable loads at sea, and meanwhile, the additional function is realized, and the construction is convenient. The provided tower main body structure reinforcing scheme is not only limited to offshore wind turbines, but also applicable to land wind turbines, so that the steel consumption of the tower main body structure can be properly reduced, and the production and transportation cost is reduced.
Based on the above situation, the utility model provides the multifunctional built-in stiffening plate for the tower barrel of the offshore wind turbine, which can effectively solve the problems.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art, and provides a multifunctional built-in stiffening plate for a tower barrel of an offshore wind turbine, which can solve the problems of insufficient rigidity and strength of the structure of the existing fan tower barrel.
For this purpose, the utility model adopts the following technical scheme:
The utility model provides a multi-functional built-in stiffening plate of marine wind turbine generator system tower section of thick bamboo, includes a plurality of stiffening plates of fan tower section of thick bamboo inner wall round fixed connection, fan tower section of thick bamboo top-down includes a plurality of sections, every the stiffening plate all is located the middle part of section, bolted connection has the climbing ladder between two adjacent stiffening plates, two adjacent from top to bottom are connected to the climbing ladder the section of thick bamboo, the stiffening plate still is equipped with first transmission cable hole and a plurality of second transmission cable hole.
On the basis of adopting the technical scheme, the utility model can also adopt the following further technical schemes or use the further technical schemes in combination:
The stiffening plate comprises a circular plate and an inner connecting plate, the inner connecting plate comprises a plurality of ends which are arranged outwards in a radioactive mode, the plurality of ends of the inner connecting plate are fixedly connected to the inner side face of the circular plate, a plurality of first transmission cable holes are formed in the circular plate, and second transmission cable holes are formed in the geometric center of the inner connecting plate.
The junction of climbing ladder with the stiffening plate is equipped with the installation foot, the installation foot perpendicular to the climbing ladder just the installation instep is to the geometric center of stiffening plate.
The utility model discloses a climbing ladder, including the stiffening plate, the climbing ladder, the stiffening plate, the screw bolt is fixed through bolt fixed connection between the stiffening plate and two of upper and lower the climbing ladder, the stiffening plate with the junction of climbing ladder is equipped with the bolt hole, be equipped with on the installation foot with the mounting hole that the bolt hole center is aligned, the bolt hole and two that the stiffening plate was equipped with from top to bottom the mounting hole all with screw bolt threaded connection, screw bolt one end is fixed through threaded connection's nut, between screw bolt and the by the connecting piece the nut with all be equipped with the packing ring between the connecting piece.
Each section of cylinder section is provided with stiffening plates, and the stiffening plates are axially and continuously and uniformly distributed in the fan tower.
The inner connecting plate is a cross connecting plate, the first transmission cable hole is intersected with an extension line of one end of the cross connecting plate, the inner connecting plate is fixedly connected with the annular plate through welding, and the annular plate is respectively flush with the upper surface and the lower surface of the inner connecting plate.
The second transmission cable hole is respectively connected with the geometric center of the first transmission cable hole and the geometric center of the bolt hole, and therefore an included angle is 45 degrees.
The climbing ladder in the fan tower cylinder is positioned on the same plane in the vertical direction and is aligned left and right, and the bolt holes in the fan tower cylinder are provided with the same central shaft.
The stiffening plate, the bolts, the nuts and the washers are all low-alloy high-strength steel.
Compared with the prior art, the utility model has the following advantages: the stiffening plate provided by the utility model can increase the rigidity and strength of the tower barrel of the fan, avoid buckling damage and bending fracture of the barrel, reduce the steel consumption of the main body structure of the tower barrel and reduce the production and transportation cost; the first transmission cable hole and the second transmission cable hole arranged on the stiffening plate can fix the transmission cable penetrating through the cylindrical shell section, so that welding of the transmission cable fixing piece is avoided; the stiffening plate provides support for the climbing ladder, no climbing ladder fixing piece is required to be welded in the fan tower barrel, space is saved, and construction difficulty is reduced; the stiffening plate passes through bolted connection with the climbing ladder, conveniently overhauls, has avoided simultaneously leading to the adverse effect to the intensity production of fan tower section of thick bamboo because of welding climbing ladder mounting.
Drawings
FIG. 1 is a schematic cross-sectional view of the overall structure of the present utility model;
FIG. 2 is a schematic three-dimensional cross-sectional view of the overall structure of the present utility model;
FIG. 3 is a top view of a stiffener according to the present utility model;
FIG. 4 is a schematic view of a stiffener and climbing ladder bolted connection of the present utility model;
FIG. 5 is a schematic three-dimensional cross-sectional view of a stiffener and climbing ladder bolted connection of the present utility model.
Detailed Description
For a better understanding of the technical solutions of the present utility model by those skilled in the art, a preferred embodiment of the present utility model is described below with reference to specific examples, which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar functional elements throughout, but it is understood that the drawings are for illustrative purposes only and are not to be construed as limiting the utility model; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted in order to illustrate the utility model only and not to limit the utility model.
The utility model is further illustrated by the following figures and examples, which are not intended to be limiting.
The fan tower 1 comprises a plurality of cylinder sections 11, and reference is made to the accompanying drawings. The utility model provides a multifunctional built-in stiffening plate of a tower cylinder of an offshore wind turbine, which comprises a plurality of stiffening plates 20 fixedly connected with one circle on the inner wall of the tower cylinder 1 of a wind turbine, wherein the tower cylinder 1 of the wind turbine comprises a plurality of cylinder sections 11 from top to bottom, each stiffening plate 20 is positioned in the middle of each cylinder section 11, a climbing ladder 3 is connected between two adjacent stiffening plates 20 through bolts, the climbing ladder 3 is connected with two cylinder sections 11 which are adjacent up and down, and the stiffening plates 20 are also provided with a first transmission cable hole 23 and a plurality of second transmission cable holes 24.
The strength and rigidity of the tower structure can be increased by the climbing ladder 3 fixed between the stiffening plate 20 and the two adjacent stiffening plates 20, and meanwhile, the first transmission cable hole 23 and the second transmission cable hole 24 can avoid welding extra transmission cable fixing pieces on the inner wall of the fan tower 1.
The stiffening plate 20 is composed of a circular plate 21 and an inner connecting plate 22, the inner connecting plate 22 comprises a plurality of ends which are radially outwards arranged, the plurality of ends of the inner connecting plate 22 are fixedly connected to the inner side surface of the circular plate 21, a plurality of first transmission cable holes 23 are formed in the circular plate 21, and a second transmission cable hole 24 is formed in the geometric center of the inner connecting plate 22.
As shown in fig. 3, the inner connection plate 22 has four ends arranged radially outwardly to form a cross-shaped structure, and the second transmission cable hole 24 is located at the center of the cross-shaped structure.
As shown in fig. 5, the connection between the climbing ladder 3 and the stiffening plate 20 is provided with a mounting foot 31, the mounting foot 31 is perpendicular to the climbing ladder 3 and the mounting foot 31 faces away from the geometric center of the stiffening plate 20.
The stiffening plate 20 is fixedly connected with the two climbing ladders 3 at the upper part and the lower part through bolts 41, bolt holes 25 are formed in the joint of the stiffening plate 20 and the climbing ladders 3, mounting holes aligned with the centers of the bolt holes 25 are formed in mounting feet 31, the bolt holes 25 and the two mounting holes formed in the stiffening plate 20 are in threaded connection with the bolts 41, one end of each bolt 41 is fixed through a nut 42 in threaded connection, and gaskets 43 are arranged between each bolt 41 and a connected piece and between each nut 42 and the connected piece.
The friction between the bolt 41, the nut 42 and the climbing ladder 3 can be avoided by the gasket 43, the pressure is dispersed while the connected piece is protected, and the welding of additional climbing ladder fixing pieces in the fan tower 1 can be avoided by the connection mode of the climbing ladder 3.
Each section of shell ring 11 is provided with stiffening plates 20, and the stiffening plates 20 are axially and continuously and uniformly distributed in the fan tower 1, so that the rigidity and strength of the fan tower 1 are increased.
The internal connection plate 22 is a cross connection plate, the first transmission cable hole 23 is intersected with an extension line of one end of the cross connection plate, the internal connection plate 22 is fixedly connected with the annular plate 21 through welding, and the upper surface and the lower surface of the annular plate 21 and the upper surface and the lower surface of the internal connection plate 22 are respectively flush.
The second transmission cable hole 24 is connected with the geometric center of the first transmission cable hole 23 and the geometric center of the bolt hole 25 respectively, and thus an included angle of 45 degrees is formed.
The climbing ladder 3 in the fan tower 1 is positioned on the same plane in the vertical direction and aligned left and right, and the bolt holes 25 in the fan tower 1 have the same central shaft.
The stiffener 20, bolts 41, nuts 42 and washers 43 are all low alloy, high strength steel.
According to the description of the utility model and the accompanying drawings, a person skilled in the art can easily manufacture or use the multifunctional built-in stiffening plate for the tower of the offshore wind turbine, and the positive effects described by the utility model can be produced.
It is noted that the terms "comprising" and "having" and any variations thereof in the description of the invention and the claims and the foregoing drawings are intended to cover non-exclusive inclusions. The terms "mounted," "configured," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two mechanisms, elements, or components. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present invention, it should be understood that the terms "one end," "another end," "outer side," "inner side," "horizontal," "end," "length," "outer end," "left," "right," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the mechanisms or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. The terms "first," "second," and the like, are also used for simplicity of description only and are not indicative or implying relative importance.
Furthermore, variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed invention, from a study of the drawings, the disclosure, and the appended claims. Furthermore, in the claims, the specification, the words "comprise", "comprising", and the like do not exclude other elements or steps, and the non-plural terms do not exclude a plurality.
The foregoing description is only illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, i.e. all equivalent changes and modifications that may be made in accordance with the present utility model are covered by the appended claims, which are not intended to be construed as limiting.
Claims (9)
1. The utility model provides a multi-functional built-in stiffening plate of marine wind turbine tower section of thick bamboo which characterized in that: including a plurality of stiffening plates (20) of fan tower section of thick bamboo (1) inner wall round fixed connection, fan tower section of thick bamboo (1) top-down includes a plurality of sections of thick bamboo (11), every stiffening plate (20) all are located the middle part of section of thick bamboo (11), adjacent two bolted connection has climbing ladder (3) between stiffening plate (20), adjacent two about climbing ladder (3) connect section of thick bamboo (11), stiffening plate (20) still are equipped with first transmission cable hole (23) and a plurality of second transmission cable hole (24).
2. The multi-functional built-in stiffening plate for a tower of an offshore wind turbine, as set forth in claim 1, wherein: the stiffening plate (20) is composed of a circular plate (21) and an inner connecting plate (22), the inner connecting plate (22) comprises a plurality of ends which are radially outwards arranged, the plurality of ends of the inner connecting plate (22) are fixedly connected to the inner side face of the circular plate (21), a plurality of first transmission cable holes (23) are formed in the circular plate (21), and second transmission cable holes (24) are formed in the geometric center of the inner connecting plate (22).
3. The multi-functional built-in stiffening plate for a tower of an offshore wind turbine, as set forth in claim 1, wherein: the climbing ladder is characterized in that a mounting foot (31) is arranged at the joint of the climbing ladder (3) and the stiffening plate (20), the mounting foot (31) is perpendicular to the climbing ladder (3) and the mounting foot (31) is opposite to the geometric center of the stiffening plate (20).
4. The multi-functional built-in stiffening plate of an offshore wind turbine tower according to claim 3, wherein: the utility model discloses a climbing ladder, including climbing ladder (3) and stiffening plate, including stiffening plate (20), screw bolt (41) fixed connection, stiffening plate (20) with the junction of climbing ladder (3) is equipped with bolt hole (25), be equipped with on mounting foot (31) with the mounting hole that bolt hole (25) center was aligned, bolt hole (25) and two that stiffening plate (20) were equipped with from top to bottom the mounting hole all with screw bolt (41) threaded connection, screw bolt (41) one end is fixed through threaded connection's nut (42), between screw bolt (41) and the by the connecting piece screw nut (42) and by all be equipped with packing ring (43) between the connecting piece.
5. The multi-functional built-in stiffening plate for a tower of an offshore wind turbine, as set forth in claim 1, wherein: each section of shell ring (11) is provided with stiffening plates (20), and the stiffening plates (20) are axially and continuously and uniformly distributed in the fan tower (1).
6. The multi-functional built-in stiffening plate for a tower of an offshore wind turbine, as set forth in claim 2, wherein: the inner connecting plate (22) is a cross connecting plate, the first transmission cable hole (23) is intersected with an extension line of one end of the cross connecting plate, the inner connecting plate (22) is fixedly connected with the annular plate (21) through welding, and the annular plate (21) is respectively flush with the upper surface and the lower surface of the inner connecting plate (22).
7. The multi-functional built-in stiffening plate for the tower of the offshore wind turbine, as set forth in claim 4, wherein: the second transmission cable hole (24) is respectively connected with the geometric center of the first transmission cable hole (23) and the geometric center of the bolt hole (25), so that an included angle is 45 degrees.
8. The multi-functional built-in stiffening plate for the tower of the offshore wind turbine, as set forth in claim 4, wherein: the climbing ladder (3) in the fan tower (1) is positioned on the same plane in the vertical direction and is aligned left and right, and the bolt holes (25) in the fan tower (1) are provided with the same central shaft.
9. The multi-functional built-in stiffening plate for the tower of the offshore wind turbine, as set forth in claim 4, wherein: the stiffening plate (20), the bolts (41), the nuts (42) and the washers (43) are all low-alloy high-strength steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322970305.2U CN221220687U (en) | 2023-11-03 | 2023-11-03 | Multifunctional built-in stiffening plate for tower barrel of offshore wind turbine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322970305.2U CN221220687U (en) | 2023-11-03 | 2023-11-03 | Multifunctional built-in stiffening plate for tower barrel of offshore wind turbine generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221220687U true CN221220687U (en) | 2024-06-25 |
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ID=91572194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322970305.2U Active CN221220687U (en) | 2023-11-03 | 2023-11-03 | Multifunctional built-in stiffening plate for tower barrel of offshore wind turbine generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221220687U (en) |
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2023
- 2023-11-03 CN CN202322970305.2U patent/CN221220687U/en active Active
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