CN111980866B - Stay cable type tower, wind generating set and stay cable anchoring part - Google Patents
Stay cable type tower, wind generating set and stay cable anchoring part Download PDFInfo
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- CN111980866B CN111980866B CN201910430766.6A CN201910430766A CN111980866B CN 111980866 B CN111980866 B CN 111980866B CN 201910430766 A CN201910430766 A CN 201910430766A CN 111980866 B CN111980866 B CN 111980866B
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- tower
- base plate
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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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- 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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Abstract
The invention relates to a guyed tower, a wind generating set and a guyed anchorage, the guyed tower comprises: the tower body comprises a plurality of tower cylinder sections which are stacked mutually; the guy cable anchoring part comprises an annular base plate and inclined pulling plates which are sequentially arranged with the annular base plate in the radial direction of the annular base plate, each inclined pulling plate is provided with a mounting position, the guy cable anchoring part is connected with the tower section through the annular base plate, the inclined pulling plates are multiple and are sequentially arranged along the circumferential direction of the annular base plate, and at least one inclined pulling plate is intersected with the annular base plate; cable group, including a plurality of cables that set up along circumference interval, the one end of every cable is connected and the other end extends to the direction of keeping away from the installation position with one of them installation position. The guy cable type tower frame, the wind generating set and the guy cable anchoring part provided by the embodiment of the invention can ensure the requirement of connection of the guy cable and the tower frame body, can improve the integral rigidity and strength of the tower frame, and have higher safety performance.
Description
Technical Field
The invention relates to the technical field of wind power, in particular to a stay cable type tower, a wind generating set and a stay cable anchoring piece.
Background
In recent years, the application of guyed towers to large wind turbine generators has become a technological trend. Among the prior art, the connected mode of cable and pylon body is mostly the lug of direct weld on the lateral wall of pylon body, then connects the cable at the lug to realize being connected between cable and the pylon body. In order to resist the pulling force of the guy cable on the lug plate, the thickness of the local cylinder wall of the tower body is usually increased, so that the cost of the tower is increased, and meanwhile, the stress concentration is easily caused in the area of the thickness change of the side wall of the tower body, so that the use safety of the whole tower is influenced.
Therefore, a new guyed tower, wind turbine generator system and guyed anchor is needed.
Disclosure of Invention
The embodiment of the invention provides a guy cable type tower frame, a wind generating set and a guy cable anchoring part, which can ensure the requirement of connection of a guy cable and a tower frame body, can improve the integral rigidity and strength of the tower frame, and has higher safety performance.
In one aspect, a guyed tower is provided according to an embodiment of the present invention, including: the tower body comprises a plurality of tower cylinder sections which are stacked mutually; the guy cable anchoring part is arranged between two adjacent tower sections and comprises an annular base plate and inclined pulling plates which are sequentially arranged with the annular base plate in the radial direction of the annular base plate, a mounting position is arranged on each inclined pulling plate, the guy cable anchoring part is connected with the tower sections through the annular base plate, the inclined pulling plates are multiple and are sequentially arranged along the circumferential direction of the annular base plate, and at least one inclined pulling plate is intersected with the annular base plate; the cable group, including a plurality of cables that set up along circumference interval, the one end of every cable is connected and the other end extends to the direction of keeping away from the installation position with one of them installation position.
According to an aspect of the embodiment of the present invention, in an axial direction of the annular base plate itself, the annular base plate has a first surface and a second surface which are opposite to each other, and each of the diagonal draw plates has a third surface and a fourth surface which are opposite to each other; the third surface of at least one inclined pulling plate is intersected with the first surface to form a first included angle, and the first included angle is larger than 0 degree and smaller than or equal to 45 degrees; and/or a fourth surface of at least one inclined pulling plate is intersected with the second surface to form a second included angle, and the second included angle is larger than 0 degree and smaller than or equal to 45 degrees.
According to an aspect of the embodiment of the present invention, each of the plurality of inclined pulling plates is disposed to intersect with the annular base plate; and/or the plurality of inclined pulling plates are arranged at intervals and uniformly in the circumferential direction.
According to one aspect of the embodiment of the invention, a plurality of connecting through holes penetrating along the axial direction of the annular base plate are formed in the annular base plate, and the annular base plate is connected with the tower section through fasteners arranged in the connecting through holes;
and/or the mounting position is a through hole penetrating along the axial direction of the annular substrate.
According to an aspect of the embodiment of the present invention, the guyed tower further comprises a support member having two ends, the support member is disposed between at least one of the diagonal draw plates and the tower segment, one of the ends of the support member is connected to the tower segment, and the other end of the support member is disposed facing the diagonal draw plate of the guyed anchor, so that the diagonal draw plate can press against the support member.
According to one aspect of the embodiment of the invention, the supporting component comprises an installation part and a bearing part which are connected with each other, the supporting component is fixedly connected with the tower section through the installation part, the surface of the bearing part facing the inclined pulling plate is an inclined surface, and the inclined direction of the inclined surface is the same as the inclined direction of the inclined pulling plate facing the surface of the bearing part.
According to one aspect of the embodiment of the invention, the mounting part comprises a mounting plate and a connecting strip arranged on the mounting plate, the surface of the connecting strip, which is far away from the mounting plate, is an arc-shaped surface with the shape matched with the shape of the outer peripheral surface of the tower cylinder section, the arc-shaped surface is attached to the tower cylinder section and connected with the tower cylinder section, and the force bearing part is connected to the surface of the mounting plate, which is far away from the connecting strip.
According to one aspect of the embodiment of the invention, the force bearing part comprises a plurality of supporting rods which are arranged at intervals, and the end surfaces of the plurality of supporting rods, which are far away from the mounting part, jointly form an inclined surface; or the force bearing part comprises a polyhedral structure, and the surface of the polyhedral structure, which is far away from the mounting part, forms an inclined surface.
According to an aspect of an embodiment of the present invention, the guyed tower further includes an angle adjusting part, the angle adjusting part includes a plurality of support columns having a predetermined height, the plurality of support columns are circumferentially disposed around the tower body, and one end of the guy extending in a direction away from the installation site is connected to one of the support columns.
According to an aspect of an embodiment of the present invention, the height of any support column is 1/3 to 4/3 times the height of one of the tower sections in the axial direction of the annular base plate.
According to one aspect of the embodiment of the invention, a plurality of anchoring ears respectively provided with a perforation are arranged on the supporting upright, and each inhaul cable is connected with one of the anchoring ears through the perforation.
According to one aspect of the embodiment of the invention, the number of the stay cable anchoring parts is multiple, the plurality of stay cable anchoring parts are arranged at intervals in the axial direction of the annular base plate, the number of the stay cable groups is the same as that of the stay cable anchoring parts and the stay cable groups are arranged in a one-to-one correspondence manner, and each stay cable of each stay cable group is connected with the installation position of the corresponding stay cable anchoring part.
In another aspect, a wind turbine generator set is provided according to an embodiment of the present invention, and includes the cable tower described above.
According to the guy cable type tower frame and the wind generating set provided by the embodiment of the invention, the guy cable type tower frame comprises a tower frame body, a guy cable anchoring part and a guy cable group, wherein the guy cable anchoring part can be connected between two adjacent tower sections through an annular base plate of the guy cable anchoring part, and a mounting position is arranged on an inclined pull plate of the guy cable anchoring part, so that a guy cable of the guy cable group can be connected with the guy cable anchoring part through the mounting position and further indirectly connected with the tower frame body. And at least one inclined pulling plate is limited to be intersected with the corresponding annular base plate, so that the inclined pulling plate can be consistent with the inclined direction of the stay cable connected with the inclined pulling plate, the inclined pulling plate has better bearing capacity, the inclination angle requirement of the stay cable connected with the inclined pulling plate can be improved, the service life of the stay cable connected with the inclined pulling plate can be prolonged, the whole tower has higher safety performance, and the power generation benefit of the wind generating set is ensured.
In another aspect, a cable anchor for a cable tower is provided according to an embodiment of the present invention, the cable anchor including: the annular base plate is provided with a plurality of connecting through holes arranged at intervals along the circumferential direction of the annular base plate so as to be connected with the tower body; the inclined pulling plates are sequentially arranged with the annular base plate in the radial direction of the annular base plate, at least one installation position is arranged on each inclined pulling plate, the inclined pulling plates are arranged in a plurality and are sequentially distributed along the circumferential direction of the annular base plate, at least one inclined pulling plate is intersected with the annular base plate, and the cable group can be connected with the inclined pulling plates through the installation positions.
The inhaul cable anchoring piece provided by the embodiment of the invention comprises an annular base plate and a diagonal pulling plate arranged in the radial direction of the annular base plate and intersected with the annular base plate, the annular substrate is provided with a connecting through hole, a plurality of inclined pulling plates are arranged in sequence along the circumferential direction of the annular substrate, when the cable anchoring part is applied to the cable-stayed tower, the annular base plate can be connected with the tower body, the cable group can be connected with the cable-stayed plate through the installation position, further indirectly connected with the tower body without changing the wall thickness of the tower body, thereby not affecting the rigidity and the strength of the tower body, and at least one inclined pulling plate is limited to be intersected with the corresponding annular base plate, so that the inclined pulling plate can be consistent with the inclined direction of the inhaul cable connected with the inclined pulling plate, the cable-stayed plate has better bearing capacity, and the inclination angle requirement and the service life of the connected cable can be improved.
Drawings
Features, advantages and technical effects of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of a wind turbine generator system according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a guyed tower according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a cable anchor according to one embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 2 at A;
FIG. 5 is a partial schematic structural view of a stayed tower according to another embodiment of the invention;
FIG. 6 is an isometric view of a support member of one embodiment of the present invention from one perspective;
FIG. 7 is an isometric view of a support member of one embodiment of the invention from another perspective;
FIG. 8 is an isometric view of a support member of another embodiment of the invention;
FIG. 9 is a schematic structural view of a stayed tower according to another embodiment of the invention;
fig. 10 is a schematic view of the connection of the stay cable and the support post according to the embodiment of the present invention.
Wherein:
1-a guyed tower;
10-a tower body; 11-a column section; a 111-end flange; 112-outer peripheral surface;
20-a cable anchor; 21-a ring-shaped substrate; 211-a first surface; 212-a second surface; 213-connecting vias; 22-a diagonal draw plate; 221-a third surface; 222-a fourth surface; 223-a mounting location;
30-a cable set; 31-a pull cable;
40-a support member; 41-a mounting portion; 411-a mounting plate; 412-a connecting strip; 412 a-arc shaped face; 42-a force bearing part; 421-a support bar; 422-inclined plane;
50-an angle adjustment member; 51-a support column; 511-anchoring ears; 511 a-perforation;
2-a fan foundation;
3-a cabin;
4-an impeller; 401-a hub; 402-a blade;
x-radial; y-circumferential direction; z-axial direction.
In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention. In the drawings and the following description, at least some well-known structures and techniques have not been shown in detail in order to avoid unnecessarily obscuring the present invention; also, the dimensions of some of the structures may be exaggerated for clarity. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
The following description will be given with the directional terms as they are shown in the drawings, and is not intended to limit the specific structure of the guyed tower, wind turbine generator system and guyed anchor assembly of the present invention. In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as either a fixed connection, a removable connection, or an integral connection; can be directly connected or indirectly connected. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
For a better understanding of the invention, a guyed tower, a wind turbine generator set and a guyed anchor according to embodiments of the invention are described in detail below with reference to fig. 1 to 10.
Referring to fig. 1 to 4 together, fig. 1 shows a schematic structural diagram of a wind generating set according to an embodiment of the present invention, fig. 2 shows a schematic structural diagram of a guyed tower according to an embodiment of the present invention, fig. 3 shows a schematic structural diagram of a guyed anchor according to an embodiment of the present invention, and fig. 4 shows a partially enlarged view of a point a in fig. 2.
The embodiment of the invention provides a wind generating set which mainly comprises a fan foundation 2, a guyed tower 1, a cabin 3, a generator and an impeller 4. The guyed tower 1 is connected to the fan foundation 2, the nacelle 3 is arranged at the top end of the guyed tower 1, and the generator is arranged in the nacelle 3. The impeller 4 comprises a hub 401 and a plurality of blades 402 connected to the hub 401, and the impeller 4 is connected to the rotating shaft of the generator through the hub 401. When wind acts on the blades 402, the whole impeller 4 and the rotating shaft of the generator are driven to rotate, and the power generation requirement of the wind generating set is further met.
As can be seen from the above description of the structure of the wind turbine generator system, the heavy equipment such as the nacelle 3, the generator, and the impeller 4 are supported above the guyed tower 1, and when the wind turbine generator system is high in height or high in power, the wind turbine generator system has a higher requirement for the carrying capacity of the guyed tower 1.
Therefore, in order to better meet the above requirements, an embodiment of the present invention further provides a novel guy cable type tower 1, which includes a tower body 10, a guy cable anchoring member 20, and a guy cable group 30, where the guy cable group 30 is connected to the tower body 10 through the guy cable anchoring member 20, so as to ensure the connection requirement between the guy cable 31 and the tower body 10, and at the same time, not affect the rigidity and strength of the tower body 10, and improve the rigidity and strength of the whole guy cable type tower 1, so that the guy cable type tower 1 has higher safety performance.
Specifically, the tower body 10 includes a plurality of tower tube sections 11 that set up each other range upon range of, and the quantity of tower tube section 11 can be selected according to wind generating set's model, and every tower tube section 11 can be by two above tower sections range upon range of and welded connection in proper order, and the both ends of every tower tube section 11 are provided with end flange 111 respectively.
As shown in fig. 3 and 4, the cable anchor 20 according to the embodiment of the present invention may be produced, sold, or the like as a separate member, or may be used for the guyed tower 1 and be a part of the guyed tower 1. When used in a guyed tower 1, the guyed anchor 20 may be disposed between two adjacently disposed tower segments 11.
The cable anchor 20 may include a ring-shaped base plate 21 and diagonal pull plates 22 sequentially arranged with the ring-shaped base plate 21 in a radial direction X of the ring-shaped base plate 21, each diagonal pull plate 22 is provided with a mounting position 223, and the cable anchor 20 may be connected with the tower segment 11 through the ring-shaped base plate 21, and specifically, the ring-shaped base plate 21 may be clamped between the end flanges 111 of two adjacent tower segments 11 and connected with the end flanges 111. The inclined pulling plates 22 are arranged in sequence along the circumferential direction Y of the annular base plate 21, and at least one inclined pulling plate 22 is intersected with the annular base plate 21. When the cable anchor 20 is applied to the cable tower 1, each inclined pulling plate 22 of the cable anchor 20 may at least partially protrude from the outer circumferential surface 112 of the tower body 10 to facilitate installation and connection of the cable set 30.
The intersection between the inclined pulling plate 22 and the annular base plate 21 mentioned in the embodiments of the present invention specifically means that an included angle between the inclined pulling plate 22 and the annular base plate is greater than 0 ° and less than 180 °. Alternatively, an angle between each of two surfaces of the inclined pulling plate 22 and the annular base plate 21 having a connection relation with each other may be greater than 0 ° and less than 180 °.
The cable group 30 includes a plurality of cables 31 arranged at intervals in the circumferential direction Y, and the number of the cables 31 included in the cable group 30 may be the same as the number of the mounting positions 223 included in the cable anchors 20 connected thereto, or may be less than the number of the mounting positions 223 included in the cable anchors 20 connected thereto. One end of each cable 31 is connected to one of the mounting locations 223 and the other end extends in a direction away from the mounting location 223. The other end of the guy cable 31 extending in the direction away from the installation position 223 may be connected to the fan base 2, or may be connected to a separately provided guy cable base.
According to the guy cable type tower 1 provided by the embodiment of the invention, the guy cable anchoring part 20 is arranged, so that the guy cable group 30 can be connected with the tower body 10 through the annular base plate 21 of the guy cable anchoring part 20, the wall thickness of the tower body 10 does not need to be changed, and the rigidity and the strength of the tower body 10 are not influenced.
And at least one inclined pulling plate 22 is limited to be intersected with the corresponding annular base plate 21, so that the inclined pulling plate 22 can be consistent with the inclined direction of the guy cable connected with the inclined pulling plate 22, the inclined pulling plate 22 has better bearing capacity, the inclination angle requirement of the guy cable 31 connected with the inclined pulling plate can be improved, the service life of the guy cable can be prolonged, the whole tower has higher safety performance, and the power generation benefit of the wind generating set is ensured.
Referring to fig. 3, in the cable anchor 20 according to the embodiment of the present invention, in order to facilitate connection with the tower segment 11 corresponding to the tower body 10, optionally, a plurality of connecting through holes 213 penetrating along the axial direction Z of the annular base plate 21 are disposed on the annular base plate 21, the number of the connecting through holes 213 may be specifically set according to the radial X dimension of the annular base plate 21, and the annular base plate 21 may be connected with the tower segment 11 through fasteners disposed in the connecting through holes 213. Specifically, the cable anchoring member 20 can be directly placed between the end flanges 111 of two adjacent tower tube sections 11 and connected through the fastening member, so that the connection is more convenient.
The annular substrate 21 may have a circular ring shape or a polygonal ring shape, and the connection through hole 213 may be a circular hole or a polygonal hole. The annular substrate 21 has a first surface 211 and a second surface 212 opposite to each other in the axial direction Z, and the first surface 211 and the second surface 212 may be flat.
In some optional examples, the number of the inclined pull plates 22 may be specifically set according to the number of the cables 31 to be connected in the cable group 30, and may specifically be the same as the number of the cables 31 to be connected in the cable group 30, in order to make the overall stress of the tower body 10 more uniform, optionally, a plurality of inclined pull plates 22 are spaced and uniformly arranged in the circumferential direction Y. The ramp plate 22 may be in the form of an approximately trapezoidal structure, but may also be in the form of a semi-circular, semi-elliptical, or other regular or irregular shape. Each of the diagonal tension plates 22 has a third surface 221 and a fourth surface 222 that are opposite to each other in the axial direction Z of the annular base plate 21.
Alternatively, the mounting position 223 of the inclined pulling plate 22 may be in the form of a through hole, the through hole may penetrate through the inclined pulling plate 22 in the axial direction Z of the annular substrate 21, and the front end of the cable 31 may penetrate through the corresponding through hole and form a closed loop to be connected with the inclined pulling plate 22. The number of the mounting positions 223 on each inclined pulling plate 22 may be one, or may be two or more, and when there are two or more, two adjacent mounting positions 223 are spaced apart from each other. Further, two or more mounting sites 223 on each diagonal draw plate 22 may be provided at intervals from each other in the circumferential direction Y of the ring-shaped base plate 21.
In order to better satisfy the force requirement of the cable 31, as an alternative embodiment, the third surface 221 of the at least one inclined pulling plate 22 intersects with the first surface 211 to form a first included angle α, where the first included angle α is greater than 0 ° and equal to or less than 45 °, that is, the first included angle α may be any value between 0 ° and 45 °, including 45 °. Optionally, the first included angle α may further be any value between 0 ° and 30 °, some optional values are 10 °, 15 °, 20 °, and the like, and may be specifically set according to an angle between the extending direction of the cable 31 connected thereto and the axial direction Z of the annular base plate 21, and is preferably equal to the angle between the extending direction of the cable 31 connected thereto and the axial direction Z of the annular base plate 21, so that the acting force provided by the cable 31 can be better transmitted to the tower body 10.
Optionally, in the cable anchor 20 provided in each of the above embodiments, the fourth surface 222 of the at least one inclined pulling plate 22 intersects with the second surface 212 to form a second included angle β, where the second included angle β is greater than 0 ° and equal to or less than 45 °, that is, the second included angle β may also be any value between 0 ° and 45 °, including 45 °. Optionally, the second included angle β may further be any value between 10 ° and 45 °, preferably any value between 20 ° and 45 °, with some optional point values being 25 °, 30 °, 35 °, etc. Specifically, the angle between the extending direction of the connected cable 31 and the axial direction Z of the annular base plate 21 may be set according to, and is preferably equal to, the angle between the extending direction of the connected cable 31 and the axial direction Z of the annular base plate 21, so that the acting force provided by the cable 31 can be better transmitted to the tower body 10. In specific implementation, the second included angle β may be the same as the first included angle α, and certainly may be different from the first included angle α as long as the connection requirement between the cable 31 and the tower body 10 can be better satisfied.
As an optional embodiment, in order to optimize the stress condition of each cable 31 of the cable group 30 and improve the service life, optionally, each inclined pulling plate 22 is arranged to intersect with the annular base plate 21. In practical implementation, the first angles α at which the third surfaces 221 of the inclined pulling plates 22 intersect with the first surface 211 may be the same or different. Likewise, the second angles β at which the fourth surfaces 222 of the diagonal draw plates 22 intersect the second surfaces 212 may be the same as each other, or of course, may be different.
In order to avoid stress concentration caused by the cable anchor 20 applied to the cable-stayed tower 1 and connected with the cable group 30 and the tower body 10, optionally, the inclined pulling plate 22 is connected with at least one butt joint surface of the annular base plate 21 in a smooth transition manner, and further optionally, each butt joint surface of the inclined pulling plate 22 and the annular base plate 21 is connected in a smooth transition manner. In specific implementation, the inclined pulling plate 22 may be connected to the annular base plate 21 by welding, and the like, and of course, in some other examples, the inclined pulling plate 22 and the annular base plate 21 may be set to be an integrated structure, so that the strength of the cable anchoring member 20 is higher, and the performance is more optimized.
Referring to fig. 5, fig. 5 is a partial schematic structural view of a guyed tower 1 according to another embodiment of the present invention. As an alternative embodiment, the guyed tower 1 further comprises a support member 40 having two ends, the support member 40 is disposed between at least one of the diagonal tension plates 22 and the tower segment 11, one end of the support member 40 is connected to the tower segment 11, and the other end is disposed facing the diagonal tension plate 22 of the guyed anchor 20, so that the diagonal tension plate 22 can be pressed against the support member 40. Through the arrangement of the supporting component 40, when the inclined pulling plate 22 bears the inclined pulling force of the guy cable 31 in the direction close to the fan foundation 2 and changes relative to the position of the annular base plate 21, the supporting component 40 can provide supporting force for the inclined pulling plate 22 so as to prevent the inclined pulling plate 22 and the annular base plate 21 from changing relative to each other, and further the consistency of the integral inclined direction of the inclined pulling plate 22 and the inclined direction of the guy cable 31 connected with the inclined pulling plate 22 is ensured.
Referring to fig. 6 in conjunction with fig. 7, fig. 6 shows an isometric view of support member 40 from one perspective and fig. 7 shows an isometric view of support member 40 from another perspective, in accordance with an embodiment of the present invention.
As an alternative embodiment, the supporting member 40 includes a mounting portion 41 and a force-bearing portion 42 that are connected to each other, the supporting member 40 is fixedly connected to the tower section 11 through the mounting portion 41, a surface of the force-bearing portion 42 facing the diagonal draw plate 22 is an inclined surface 422, and an inclined direction of the inclined surface 422 is the same as an inclined direction of a surface of the diagonal draw plate 22 facing the force-bearing portion 42. The phrase "the same" in the phrase "the direction of inclination of the inclined surface 422 is the same as the direction of inclination of the surface of the diagonal draw plate 22 facing the force-bearing portion 42" does not mean that the directions are absolutely the same, and it is possible to allow some errors in processing, assembly, and the like, and it is possible to understand that the angular deviation is within 10 ° as the same as that mentioned in the present embodiment. By providing the support member 40 with the above-described structure and defining the positional relationship between each component thereof and the corresponding tower body 10 and the inclined pull plate 22, the installation of the support member 40 can be facilitated while better satisfying the support of the inclined pull plate 22.
In specific implementation, the inclined surface 422 of the force-bearing portion 42 may abut against the inclined pulling plate 22 to be supported, and certainly, in an initial state, a certain gap is reserved between the inclined surface 422 of the force-bearing portion 42 and the inclined pulling plate 22 to be supported, so that the supporting component 40 does not interfere with the corresponding inclined pulling plate 22 when the stay cable type tower frame 1 is assembled, and the assembly molding of the stay cable type tower frame 1 is facilitated.
In some alternative embodiments, the mounting portion 41 may include a mounting plate 411 and a connecting bar 412 disposed on the mounting plate 411, a surface of the connecting bar 412 away from the mounting plate 411 is an arc surface 412a having a shape matching the shape of the outer peripheral surface 112 of the tower segment 11, the arc surface 412a is attached to the tower segment 11 and connected to the tower segment 11, and the force-bearing portion 42 is connected to a surface of the mounting plate 411 away from the connecting bar 412. By arranging the mounting portion 41 in the above-mentioned structural form, when the mounting portion is applied to the guyed tower 1, the mounting portion can be directly welded to the tower section 11 through the arc-shaped surface 412a of the connecting bar 412, so that the mounting portion is easy to operate and has high connection strength.
As an alternative implementation manner, in the guyed tower 1 of each of the above embodiments, the force bearing portion 42 of the supporting member 40 may include a plurality of supporting rods 421 disposed at intervals, and end surfaces of the plurality of supporting rods 421 away from the mounting portion 41 jointly form the inclined surface 422. In one embodiment, the plurality of support bars 421 may be arranged according to a predetermined pattern, for example, the plurality of support bars 421 may be arranged in rows and columns. Also, among the plurality of support bars 421, the heights of some of the support bars 421 may be the same.
As an alternative embodiment, the height of the supporting rod 421 gradually increases along the radial direction X of the annular base body and in the direction away from the annular base body, so as to better form the inclined surface 422 through the end surfaces of the plurality of supporting rods 421. The force bearing part 42 adopts a mode of a plurality of support rods 421, which can meet the support requirement of the diagonal draw plate 22, and simultaneously can reduce the overall weight of the support part 40, facilitate installation and ensure the connection strength between the tower section 11 and the support part.
Referring also to fig. 8, fig. 8 illustrates an isometric view of support member 40 in accordance with another embodiment of the present invention. It is understood that the supporting member 40 of each example is an alternative embodiment, in some other examples, as shown in fig. 8, the force bearing portion 42 of the supporting member 40 is not limited to the above structural form, and in some other examples, the force bearing portion 42 of the supporting member 40 may also include a polyhedral structure, and the surface of the polyhedral structure away from the mounting portion 41 forms the inclined surface 422. The supporting requirements for the diagonal draw plates 22 can also be met. Meanwhile, the force bearing part 42 adopting the structural form can facilitate the processing and manufacturing of the supporting part 40, and the polyhedral structure is directly connected to the mounting part 41, so that the supporting part 40 is easy to form.
No matter what kind of structural style is adopted for the bearing portion 42, the bearing portion and the mounting portion 41 can be fixedly connected in a welding mode and the like, and certainly, the bearing portion and the mounting portion can also be detachably connected in a plugging mode and the like. When the detachable connection is adopted, the force bearing portion 42 having different inclined surfaces 422 can be adjusted according to the inclination angle of the diagonal draw plate 22 to be supported, so that the mounting portion 41 of the supporting member 40 can be reused.
In specific implementation, in order to avoid the change of the relative position between each inclined pulling plate 22 and the annular base plate 21 under the action of the guy cable 31 connected to each inclined pulling plate, as an optional implementation manner, a supporting component 40 is arranged between each inclined pulling plate 22 and the tower section 11, so that the stress of the guy cable type tower frame 1 is more balanced, and the safe and stable operation of the wind generating set is ensured.
Referring to fig. 9, fig. 9 is a schematic structural view of a guyed tower 1 according to another embodiment of the present invention. As an alternative embodiment, the guyed tower 1 provided in the above embodiments further includes an angle adjusting component 50, the angle adjusting component 50 includes a plurality of support columns 51 with a predetermined height, the plurality of support columns 51 are disposed around the tower body 10 along the circumferential direction Y of the annular base plate 21, and one end of the guy 31 extending in a direction away from the installation position 223 is connected to one of the support columns 51. By arranging the angle adjusting component 50 and limiting the angle adjusting component 50 to have a plurality of supporting columns 51 with predetermined heights, not only can the requirement for connecting and fixing the guy cable 31 be ensured, but also the initial height of the end of the guy cable 31 far away from the inclined pulling plate 22 can be increased, which provides a larger transverse force for the tower body 10, further better improves the rigidity and frequency of the tower body 10, reduces the amplitude of transverse swinging of the tower body 10, and further improves the overall strength of the guy cable type tower 1.
In a specific implementation, each support column 51 may be fixed to the ground, and specifically, the support column 51 may be fixed by a structural member such as an anchor bolt, and of course, in some other examples, each support column 51 may also be fixed to the fan foundation 2, and specifically, may be set according to a radiation range of the guy cable 31.
As an alternative embodiment, in the axial direction Z of the annular base plate 21, the height of any supporting column 51 is 1/3 times to 4/3 times the height of one of the tower sections 11 included in the tower body 10, where the height of the supporting column 51 is defined as the height of the supporting column 51 protruding from the ground or the wind turbine foundation 2. The height of any supporting upright post 51 is limited to 1/3-4/3 times of the height of one tower section 11, so that the guy cable 31 can better provide transverse force for the tower body, and meanwhile, the guy cable 51 can be prevented from shaking due to the fact that the supporting upright post 51 is too high, and the stability of the guy cable type tower 1 can be better guaranteed.
In some alternative examples, the height of any support column 51 may be 1/3 to 4/3 times the height of the tower section 11 connected to the wind turbine foundation 2 at the lowermost end of the tower body 10, and further may be equal to the height of the tower section 11 connected to the wind turbine foundation 2, so as to meet the support requirement, and facilitate implementation and positioning of the burying depth of the support column 51.
Referring to fig. 9 and 10 together, fig. 10 is a schematic view illustrating the connection between the cable 31 and the supporting post 51 according to the embodiment of the present invention. As an alternative embodiment, the number of the cable anchors 20 is multiple, the cable anchors 20 are arranged at intervals in the axial direction Z of the annular base plate 21, the number of the cable groups 30 is the same as the number of the cable anchors 20 and is arranged in a one-to-one correspondence manner, and each cable 31 of each cable group 30 is connected to the installation position 223 of the corresponding cable anchor 20. When the number of the cable anchors 20 and the cable groups 30 includes a plurality of cables, the end of each cable 31 of each cable group 30 far from the cable anchor 20 connected thereto may be connected to the ground or the wind turbine foundation 2, and of course, optionally, may be partially or completely connected to the support column 51. By providing a plurality of cable anchors 20 and corresponding cable sets 30, better stability of the guyed tower 1 is achieved.
When the cables 31 are all connected to the support post 51, as an alternative embodiment, a plurality of anchoring ears 511 having through holes 511a may be provided on the support post 51, and each cable 31 is connected to one of the anchoring ears 511 through the through hole 511 a. Specifically, the corresponding end of the pulling cable 31 passes through the through hole 511a and is folded back to form a connection ring, and is connected to the anchoring ear 511.
One of the guy cables 31 of each guy cable group 30 can be connected with the same or different anchoring lugs 511 on the same supporting upright post 51, so that the connection and fixation requirements of each guy cable 31 and the increase of the transverse force borne by the tower body 10 can be ensured, meanwhile, the number of the supporting upright posts 51 can be saved, the construction is facilitated, and the cost of the wind generating set is reduced.
To sum up, the cable anchor 20 provided by the embodiment of the present invention includes the annular base plate 21 and the inclined pull plates 22 intersecting with the annular base plate 21 in the radial direction X of the annular base plate 21, and the annular base plate 21 is defined to have the connecting through hole 213, and the inclined pull plates 22 are arranged in number in sequence along the circumferential direction Y of the annular base plate 21, so that when the cable anchor 20 is applied to the cable-stayed tower 1, the annular base plate 21 can be connected with the tower body 10, and the cable group 30 can be connected with the inclined pull plates 22 through the mounting locations 223, and further indirectly connected with the tower body 10, so as to meet the connection requirement between the cable group 30 and the tower body 10, and at the same time, the wall thickness and the like of the tower body 10 do not need to be changed, so that the rigidity and the strength of the tower body 10 are not affected, and the rigidity and the strength of the whole cable-stayed tower 1 can be improved. And at least one inclined pulling plate 22 is limited to be intersected with the corresponding annular base plate 21, so that the stress direction of the inhaul cable 31 connected with the inclined pulling plate 22 is consistent with the inclined direction of the inhaul cable, the inclined pulling plate 22 has better bearing capacity, the inclination angle requirement of the inhaul cable 31 can be improved, and the service life of the inhaul cable can be prolonged.
The guy cable type tower 1 comprises the guy cable anchoring parts 20 of the above embodiments, so that the guy cable group 30 can be connected with the tower body 10 through the guy cable anchoring parts 20 without changing the wall thickness of the tower body 10, the rigidity and the strength of the tower body 10 are not affected, the guy cable type tower 1 has better stability, and meanwhile, a wind generating set applied by the guy cable type tower can have higher safety level, the power generation benefit is ensured, and the guy cable type tower 1 is easy to popularize and use.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (14)
1. A stay cable tower (1) characterized in that it comprises:
the tower body (10) comprises a plurality of tower cylinder sections (11) which are stacked mutually, and end flanges (111) are respectively arranged at two ends of each tower cylinder section (11);
the guy cable anchoring part (20) is arranged between two adjacent tower tube sections (11), the guy cable anchoring part (20) comprises an annular base plate (21) and inclined pull plates (22) which are arranged on the radial direction (X) of the annular base plate (21) in succession with the annular base plate (21), each inclined pull plate (22) is provided with a mounting position (223), the guy cable anchoring part (20) is connected with the tower tube sections (11) through the annular base plate (21), the inclined pull plates (22) are multiple in number and are sequentially arranged along the circumferential direction (Y) of the annular base plate (21), and at least one inclined pull plate (22) is intersected with the annular base plate (21);
the cable group (30) comprises a plurality of cables (31) arranged at intervals along the circumferential direction (Y), one end of each cable (31) is connected with one of the installation positions (223), and the other end of each cable extends in the direction far away from the installation positions (223);
the annular base plate (21) is clamped between the end flanges (111) of the two adjacent tower tube sections (11) and is connected with the end flanges (111).
2. Dragline tower (1) according to claim 1, characterized in that said annular base plate (21) has, in the axial direction (Z) of the annular base plate (21) itself, a first (211) and a second (212) opposite surface, each of said diagonal tension plates (22) having a third (221) and a fourth (222) opposite surface;
the third surface (221) of at least one inclined pulling plate (22) is intersected with the first surface (211) to form a first included angle, and the first included angle is larger than 0 degree and smaller than or equal to 45 degrees;
and/or the fourth surface (222) of at least one inclined pulling plate (22) is intersected with the second surface (212) to form a second included angle, and the second included angle is larger than 0 degrees and smaller than or equal to 45 degrees.
3. A stayed tower (1) according to claim 1, c h a r a c t e r i z e d i n that each of said diagonal tension plates (22) is arranged crosswise to said annular base plate (21); and/or the inclined pulling plates (22) are arranged at intervals and uniformly in the circumferential direction (Y).
4. The stayed tower (1) according to claim 1, characterised in that said annular base plate (21) is provided with a plurality of connecting through holes (213) passing through in its own axial direction (Z), said annular base plate (21) being connected to said tower segment (11) by means of fasteners provided in said connecting through holes (213);
and/or the mounting position (223) is a through hole penetrating along the axial direction (Z) of the annular substrate (21).
5. A stayed tower (1) according to any of the claims 1-4, c h a r a c t e r i z e d in that the stayed tower (1) further comprises a support member (40) having two ends, the support member (40) being arranged between at least one of the diagonal tension plates (22) and the tower section (11), one of the ends of the support member (40) being connected to the tower section (11) and the other end being arranged facing the diagonal tension plate (22) to enable the diagonal tension plate (22) to be pressed against the support member (40).
6. The guyed tower (1) of claim 5, wherein the support member (40) comprises a mounting portion (41) and a bearing portion (42) which are connected with each other, the support member (40) is fixedly connected with the tower tube section (11) through the mounting portion (41), the surface of the bearing portion (42) facing the diagonal draw plate (22) is an inclined surface (422), and the inclined surface (422) has the same inclination direction as the inclined surface of the diagonal draw plate (22) facing the bearing portion (42).
7. A stayed tower (1) according to claim 6, characterized in that said mounting portion (41) comprises a mounting plate (411) and a connection bar (412) arranged on said mounting plate (411), the surface of said connection bar (412) far from said mounting plate (411) is an arc-shaped surface (412a) matching the shape of the outer circumference (112) of said tower tube section (11), said arc-shaped surface (412a) is attached to said tower tube section (11) and connected with said tower tube section (11), said force bearing portion (42) is connected to the surface of said mounting plate (411) far from said connection bar (412).
8. A stayed tower (1) according to claim 6, characterised in that said messenger section (42) comprises a plurality of support bars (421) arranged at intervals, the end surfaces of said plurality of support bars (421) remote from said mounting section (41) together constituting said inclined surface (422);
or the force bearing part (42) comprises a polyhedral structure, and the inclined surface (422) is formed on the surface of the polyhedral structure, which is far away from the mounting part (41).
9. A dragline tower (1) according to any one of claims 1 to 4, characterized in that said dragline tower (1) further comprises an angle adjustment member (50), said angle adjustment member (50) comprising a plurality of support columns (51) having a predetermined height, said plurality of support columns (51) being arranged around said tower body (10) in said circumferential direction (Y), one end of said dragline (31) extending away from said mounting location (223) being connected to one of said support columns (51).
10. A dragline tower (1) according to claim 9, characterized in that the height of any of said support columns (51) in the axial direction (Z) of said annular base plate (21) is 1/3 to 4/3 times the height of one of said tower segments (11) of said plurality of tower segments (11).
11. Guyed tower (1) according to claim 9, characterized in that a plurality of anchoring ears (511) are provided on said support post (51), each having a perforation (511a), each guy cable (31) being connected to one of said anchoring ears (511) through said perforation (511 a).
12. The guyed tower (1) according to any one of claims 1 to 4, wherein the number of the guyed anchors (20) is plural, the plural guyed anchors (20) are arranged at intervals in the axial direction (Z) of the annular base plate (21), the number of the guyed groups (30) is the same as the number of the guyed anchors (20) and the guyed groups are arranged in one-to-one correspondence, and each guyed cable (31) of each guyed group (30) is connected with the installation position (223) of the guyed anchor (20) corresponding to the guyed group.
13. A wind park comprising a stayed tower (1) according to any of the claims 1-12.
14. A cable anchor (20) for a cable tower (1), the cable tower (1) comprising a tower body (10) and a cable set (30), the tower body (10) comprising a plurality of tower tube sections (11) stacked on top of each other, each of the two ends of the tower tube sections (11) being provided with an end flange (111) respectively, characterized in that the cable anchor (20) comprises:
the annular base plate (21) is provided with a plurality of connecting through holes (213) arranged at intervals along the circumferential direction (Y) of the annular base plate, and the annular base plate (21) is clamped between two adjacent end flanges (111) to be connected with the tower body (10);
inclined pulling plate (22), inclined pulling plate (22) be in radial (X) of annular base plate (21) go up with annular base plate (21) set up in succession, every be provided with at least one installation position (223) on inclined pulling plate (22), the quantity of inclined pulling plate (22) is a plurality of and follows circumference (Y) of annular base plate (21) arranges in proper order, at least one inclined pulling plate (22) with annular base plate (21) intersect and set up, cable group (30) can pass through installation position (223) with inclined pulling plate (22) are connected.
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| CN201910430766.6A CN111980866B (en) | 2019-05-22 | 2019-05-22 | Stay cable type tower, wind generating set and stay cable anchoring part |
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| CN201910430766.6A CN111980866B (en) | 2019-05-22 | 2019-05-22 | Stay cable type tower, wind generating set and stay cable anchoring part |
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| CN111980866B true CN111980866B (en) | 2022-09-09 |
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| CN112012891B (en) * | 2019-05-29 | 2022-07-29 | 北京金风科创风电设备有限公司 | Stay cable type tower, wind generating set and connecting device |
| WO2023274479A1 (en) * | 2021-06-30 | 2023-01-05 | Vestas Wind Systems A/S | Stabilized wind turbines, systems for stabilizing wind turbines, and methods for installing same |
| EP4363714A1 (en) * | 2021-06-30 | 2024-05-08 | Vestas Wind Systems A/S | Stabilized wind turbines, systems for stabilizing wind turbines, and methods for installing same |
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| DE102006031144A1 (en) * | 2006-07-04 | 2008-01-10 | Daubner & Stommel GbR Bau-Werk-Planung (vertretungsberechtigter Gesellschafter: Matthias Stommel, 27777 Ganderkesee) | Wind turbine, for electricity generation, automatically sets the tension of the anchor lines to stabilize the tower in high winds and squalls |
| CN202132187U (en) * | 2011-07-14 | 2012-02-01 | 华锐风电科技(集团)股份有限公司 | Guyed tower structure of wind generating set |
| CN103147932A (en) * | 2013-02-25 | 2013-06-12 | 广东明阳风电产业集团有限公司 | Improved connection structure for WTGS (wind turbine generator system) tower and basic connection transition section |
| CN203463238U (en) * | 2013-03-13 | 2014-03-05 | 青岛日川精密机械有限公司 | Small-scale wind driven generator tower |
| DE102014114472A1 (en) * | 2014-10-06 | 2016-04-07 | Thyssenkrupp Ag | Strut connection for a steel structure and steel construction with strut connection |
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