CN116624339A - Wind power tower cylinder reinforcing device - Google Patents
Wind power tower cylinder reinforcing device Download PDFInfo
- Publication number
- CN116624339A CN116624339A CN202310362675.XA CN202310362675A CN116624339A CN 116624339 A CN116624339 A CN 116624339A CN 202310362675 A CN202310362675 A CN 202310362675A CN 116624339 A CN116624339 A CN 116624339A
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- Prior art keywords
- tower
- reinforcing
- assembly
- guide rail
- damping
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- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 152
- 238000013016 damping Methods 0.000 claims abstract description 87
- 238000005265 energy consumption Methods 0.000 claims abstract description 27
- 230000000712 assembly Effects 0.000 claims abstract description 10
- 238000000429 assembly Methods 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 claims description 64
- 238000005452 bending Methods 0.000 claims description 59
- 230000002787 reinforcement Effects 0.000 claims description 52
- 239000006096 absorbing agent Substances 0.000 claims description 30
- 239000004020 conductor Substances 0.000 claims description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 230000035939 shock Effects 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 238000005728 strengthening Methods 0.000 claims 16
- 230000000694 effects Effects 0.000 abstract description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 12
- 235000017491 Bambusa tulda Nutrition 0.000 description 12
- 241001330002 Bambuseae Species 0.000 description 12
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 12
- 239000011425 bamboo Substances 0.000 description 12
- 230000009467 reduction Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 4
- 239000003351 stiffener Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
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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
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
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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
Abstract
The invention provides a wind power tower drum reinforcing device which comprises a plurality of groups of drum body reinforcing assemblies, a bottom reinforcing assembly and a connecting rod assembly, wherein the drum body reinforcing assemblies are arranged at intervals along the axial direction of a tower drum, the bottom reinforcing assembly is arranged at the bottom of the tower drum, and the connecting rod assembly is used for connecting adjacent drum body reinforcing assemblies, the bottom reinforcing assembly and the drum body reinforcing assembly at the lowest end; the shell reinforcing assembly comprises an inner reinforcing ring for tightly holding the tower, an outer reinforcing ring arranged on the outer side of the inner reinforcing ring, and a damping vibration damper connected between the inner reinforcing ring and the outer reinforcing ring, wherein one end of the damping vibration damper slides circumferentially relative to the tower and the other end slides axially relative to the tower when the tower vibrates. The invention has the advantages of high bearing capacity, good vibration energy consumption effect and the like.
Description
Technical Field
The invention relates to the field of wind power tower reinforcement, in particular to a wind power tower reinforcement device.
Background
In recent years, with the development of wind power projects, the requirement for the power generation efficiency of a fan is also increased, which means that the width, the height and the weight of a wind turbine generator set are also increased. The wind power tower drum is used as a supporting and energy-consuming absorbing component of the wind power generator set, and the vibration resistance of the wind power tower drum is greatly improved, so that the service life of the wind power generator set is directly influenced, and the wind power generator set runs safely and stably.
The problem is solved, and the existing mode is to support the wind power tower through setting up outside reinforced structure. But the tower section of thick bamboo reinforced structure of current unable to carry out the pertinence to the tower section of thick bamboo of different positions, different atress condition (like rocking, little rocking etc.) and handle, lead to the tower section of thick bamboo bearing capacity poor, the tower section of thick bamboo easily takes place the condition such as buckling damage, and it can't guarantee the effective reinforcement of wind-powered electricity generation tower section of thick bamboo, and vibration resistance is poor, wind generating set life is short. Meanwhile, the existing wind power tower reinforcing structure only has a reinforcing function, the wind power tower cannot be monitored and maintained in advance, the wind power tower is easy to damage under the action of complex external force, the reinforcing effect of the wind power tower is greatly weakened and even fails, and the wind power tower reinforcing structure is short in service life and low in reliability.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and providing the wind power tower reinforcing device with high bearing capacity and good vibration energy consumption effect.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a wind power tower drum reinforcing device comprises a plurality of groups of drum body reinforcing assemblies, a bottom reinforcing assembly and a connecting rod assembly, wherein the drum body reinforcing assemblies are arranged at intervals along the axial direction of a tower drum, the bottom reinforcing assembly is arranged at the bottom of the tower drum, and the connecting rod assembly is used for connecting adjacent drum body reinforcing assemblies and connecting the bottom reinforcing assembly with the drum body reinforcing assembly at the lowest end; the shell reinforcing assembly comprises an inner reinforcing ring for tightly holding the tower, an outer reinforcing ring arranged on the outer side of the inner reinforcing ring, and a damping vibration damper connected between the inner reinforcing ring and the outer reinforcing ring, wherein one end of the damping vibration damper slides circumferentially relative to the tower and the other end slides axially relative to the tower when the tower vibrates.
As a further improvement of the above technical scheme:
the shell reinforcement assembly comprises a torsion detection part for detecting the torsion amount of the tower drum, a bending detection part for detecting the bending amount of the tower drum, and two universal joints for enabling the damping vibration damper to rotate relative to the tower drum when the tower drum vibrates, wherein the torsion detection part is arranged on one side of the damping vibration damper, which slides circumferentially relative to the tower drum, the bending detection part is arranged on one side of the damping vibration damper, which slides axially relative to the tower drum, the two universal joints are respectively arranged at two ends of the damping vibration damper, and the universal joints are provided with vertical electromagnetic suction parts for limiting the vertical rotation of the damping vibration damper and horizontal electromagnetic suction parts for limiting the horizontal rotation of the damping vibration damper;
if the torque detection value of the torsion detection piece reaches a preset tower barrel torsion value, the torsion detection piece sends a power-off signal to the horizontal electromagnetic suction part; if the torque detection value of the torsion detection piece does not reach the preset tower torsion value, the torsion detection piece sends an electrifying signal to the horizontal electromagnetic suction part;
if the bending detection value of the bending detection piece reaches a preset tower barrel bending value, the bending detection piece sends a power-off signal to the vertical electromagnetic suction part; and if the bending detection value of the bending detection piece does not reach the preset tower barrel bending value, the bending detection piece sends an electrifying signal to the vertical electromagnetic suction part.
One end of the damping shock absorber slides circumferentially relative to the tower through the horizontal guide rail assembly, and the other end slides axially relative to the tower through the vertical guide rail assembly; the guide rails of the horizontal guide rail assembly and the vertical guide rail assembly are respectively arranged on the inner reinforcing ring and the outer reinforcing ring, the sliding parts of the horizontal guide rail assembly and the vertical guide rail assembly are respectively provided with a shock absorber connecting plate, and the two universal joint forks of the universal joint are respectively arranged on the shock absorber connecting plates and the damping shock absorber; the torsion detection piece is arranged on one side of the horizontal guide rail assembly along the horizontal direction, and the bending detection piece is arranged on one side of the vertical guide rail assembly along the vertical direction.
The inner reinforcing ring and the outer reinforcing ring are provided with guide rail placing grooves for installing guide rails, and the bottom surface of the shock absorber connecting plate is higher than the top surface of the guide rail placing grooves.
The vertical electromagnetic suction part and the horizontal electromagnetic suction part comprise a magnetic conduction plate and an electromagnet; the universal joint is a cross shaft type universal joint, and the cross shaft type universal joint comprises a cross shaft and two universal joint forks; the electromagnets of the vertical electromagnetic suction part are arranged on the upper surface and the lower surface of the cross shaft intersection, and the electromagnets of the horizontal electromagnetic suction part are arranged on the side surface of the cross shaft intersection opposite to the universal joint fork; the magnetic conduction plate is positioned on the surface of the universal joint fork opposite to the electromagnet.
The two ends of the damping shock absorber are respectively provided with a group of eddy current damping components for reducing the circumferential and axial sliding of the damping shock absorber relative to the tower, and the eddy current damping components comprise energy-consumption magnetic steel and conductor plates which are oppositely arranged; the energy consumption magnetic steel is positioned at two end sides of the damping vibration damper and can slide along with the damping vibration damper; the conductor plate is fixed on the inner reinforcing ring or the outer reinforcing ring; the moving range of the energy-consumption magnetic steel is always positioned in the conductor plate.
One end of the damping shock absorber slides circumferentially relative to the tower through the horizontal guide rail assembly, and the other end slides axially relative to the tower through the vertical guide rail assembly; the energy-consumption magnetic steel is arranged on the sliding part of the horizontal guide rail assembly or the vertical guide rail assembly; the conductor plate is arranged on one side of the horizontal guide rail assembly, which is vertical and/or parallel to the guide rail, and the conductor plate is arranged on one side of the vertical guide rail assembly, which is vertical and/or parallel to the guide rail.
The bottom reinforcement assembly comprises an inner reinforcement cylinder, an outer reinforcement cylinder, a bottom connection plate and a concrete reinforcement, wherein the inner reinforcement cylinder is tightly held by the tower cylinder, the outer reinforcement cylinder is arranged on the outer side of the inner reinforcement cylinder, the bottom connection plate is connected between the inner reinforcement cylinder and the outer reinforcement cylinder, and the concrete reinforcement is filled between the inner reinforcement cylinder and the outer reinforcement cylinder.
The inner reinforcement cylinder and the inner reinforcement ring comprise two semi-annular hoops, one ends of the semi-annular hoops are hinged to each other, the other ends of the semi-annular hoops are spliced with each other, the splicing position of the semi-annular hoops is provided with an adjusting gap for adjusting the enclasping inner diameter of the semi-annular hoops, and the adjusting gap is adjusted by a fastener arranged at the splicing position of the semi-annular hoops.
The connecting rod assembly comprises an outer hinging rod, a first inner hinging rod and a second inner hinging rod, wherein the outer hinging rod is connected between the adjacent outer fixing rings, and the outer fixing ring at the lowest end and the outer fixing cylinder; the first inner hinging rod is connected between the adjacent outer reinforcing ring and the inner reinforcing ring and between the outer reinforcing ring and the inner reinforcing cylinder at the bottommost end; the second inner hinge rod is connected between the outer fastening ring at the lowest end and the bottom connecting plate.
Compared with the prior art, the invention has the advantages that:
the invention is provided with a bottom reinforcing component and a plurality of groups of barrel reinforcing components, and connecting rod components are connected among the adjacent barrel reinforcing components, the bottom reinforcing component and the barrel reinforcing component at the lowest end. The bottom reinforcing component and the barrel reinforcing component can adopt corresponding reinforcing structures aiming at different positions of the tower barrel, and the connecting rod component enables the reinforcing components at all positions of the tower barrel to be connected to form an integral stress structure, so that the integral strength and rigidity of the tower barrel are greatly improved, and the bearing reinforcing requirement of the wind turbine is met; and the vibration energy of the tower drum can be transmitted to the ground through the drum body reinforcing assembly, the connecting rod assembly and the bottom reinforcing assembly for dissipation, so that the energy consumption effect is good, and the service life and the safety and reliability of the tower drum are greatly improved.
Meanwhile, the damping vibration absorber is arranged between the inner reinforcing ring and the outer reinforcing ring, so that vibration energy of the tower can be transmitted to the damping vibration absorber through the inner reinforcing ring for autonomous dissipation, and then the vibration energy is transmitted to the ground for dissipation through the outer reinforcing ring, the connecting rod assembly and the bottom reinforcing assembly, and the vibration energy consumption effect of the tower is greatly improved; and the two ends of the damping vibration absorber can slide along the circumferential direction and the axial direction of the tower cylinder relatively, so that flexible connection of the tower cylinder and the cylinder body reinforcing component is formed, and compared with flexible connection, rigid connection enables the tower cylinder to have a certain deformation space during vibration, and the vibration of the tower cylinder in multiple directions can be reduced better. Therefore, the invention can realize the effective vibration reduction of the tower in different positions and in complex stress states while ensuring the reliable bearing capacity of the tower.
Drawings
The invention will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings. Wherein:
FIG. 1 is a schematic perspective view of a wind power tower reinforcement device according to the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a front view of fig. 1.
Fig. 4 is a schematic perspective view of the barrel reinforcing assembly of the present invention.
Fig. 5 is an enlarged schematic view of a portion a of fig. 4.
FIG. 6 is a schematic illustration of the positional relationship of the outer stiffening ring and the damper connecting plate of the present invention.
Fig. 7 is a schematic perspective view of the outer reinforcing ring of the present invention.
Fig. 8 is an enlarged schematic view of a portion B of fig. 7.
FIG. 9 is a schematic illustration of the positional relationship of the horizontal rail assembly and the damper connecting plate of the present invention.
FIG. 10 is a schematic illustration of the relationship between the inner stiffening ring and the damper connecting plate of the present invention.
Fig. 11 is a schematic perspective view of the inner reinforcing ring of the present invention.
Fig. 12 is an enlarged schematic view of a portion C of fig. 11.
FIG. 13 is a schematic illustration of the positional relationship of the vertical rail assembly of the present invention to the damper connecting plate.
Fig. 14 is a schematic perspective view of a universal joint according to the present invention.
Fig. 15 is an exploded view of the universal joint of the present invention.
Fig. 16 is a schematic perspective view of the bottom reinforcement assembly of the present invention.
Fig. 17 is a schematic perspective view of the inner reinforcement cylinder of the present invention (hugging state).
Fig. 18 is a schematic perspective view of the inner reinforcement cylinder of the present invention (open state).
Fig. 19 is a schematic perspective view of the outer reinforcement cylinder of the present invention.
The reference numerals in the drawings denote:
1. a barrel reinforcing assembly; 11. an inner reinforcing ring; 12. an outer reinforcing ring; 13. damping vibration damper; 14. a torsion detecting member; 15. bending the detecting member; 16. a universal joint; 161. a vertical electromagnetic suction part; 162. a horizontal electromagnetic suction part; 163. a universal joint fork; 164. a cross shaft; 2. a bottom reinforcement assembly; 21. an inner reinforcement cylinder; 211. semi-annular anchor ear; 212. adjusting the gap; 213. a fastener; 22. an outer reinforcement cylinder; 23. a bottom connecting plate; 3. a connecting rod assembly; 31. an outer hinge rod; 32. a first inner hinge rod; 33. a second inner hinge rod; 4. a tower; 5. a guide rail assembly; 51. a horizontal rail assembly; 52. a vertical guide rail assembly; 53. a guide rail; 54. a sliding part; 55. a damper connecting plate; 56. a guide rail placement groove; 57. an elastic damper; 6. an eddy current damping member; 61. energy-consumption magnetic steel; 62. and a conductor plate.
Detailed Description
The invention will now be described in further detail with reference to the drawings and the specific examples, which are not intended to limit the scope of the invention.
Fig. 1 to 18 show an embodiment of the wind power tower reinforcing apparatus of the present invention, which includes a plurality of sets of a barrel reinforcing assembly 1, a bottom reinforcing assembly 2, and a connecting rod assembly 3. Wherein, multiunit stack body consolidates the axial interval arrangement of subassembly 1 along a tower section of thick bamboo 4, and the bottom of tower section of thick bamboo 4 is located to bottom reinforcement assembly 2, and connecting rod assembly 3 are connected between adjacent stack body consolidates subassembly 1 and between bottom reinforcement assembly 2 and the stack body of the lower extreme consolidates subassembly 1. The structure is simple and compact, the bottom reinforcing component 2 and the barrel reinforcing component 1 can adopt corresponding reinforcing structures aiming at different positions of the tower 4, and the connecting rod component 3 ensures that the reinforcing components at all positions of the tower 4 are connected to form an integral stress structure, so that the integral strength and rigidity of the tower 4 are greatly improved, and the bearing reinforcing requirement of the wind turbine is met; and the vibration energy of the tower drum 4 can be transmitted to the ground through the drum body reinforcing component 1, the connecting rod component 3 and the bottom reinforcing component 2 for dissipation, so that the energy consumption effect is good, and the service life and the safety and reliability of the tower drum 4 are greatly improved.
Meanwhile, the barrel reinforcing assembly 1 includes an inner reinforcing ring 11, an outer reinforcing ring 12, and a damping damper 13. Wherein, the inner reinforcement ring 11 hugs the tower 4 tightly to improve the local bearing capacity of the tower 4; the outer reinforcement ring 12 is arranged on the outer side of the inner reinforcement ring 11; the damping vibration damper 13 is connected between the inner reinforcing ring 11 and the outer reinforcing ring 12, the damping vibration damper 13 is a plurality of, the damping vibration damper 13 is arranged at intervals along the periphery of the inner reinforcing ring 11, the damping vibration damper 13 can provide the supporting force of the tower drum 4, meanwhile, vibration energy of the tower drum 4 can be transmitted to the damping vibration damper 13 through the inner reinforcing ring 11 to be autonomously dissipated, and then the vibration energy is transmitted to the ground for dissipation through the outer reinforcing ring 12, the connecting rod assembly 3 and the bottom reinforcing assembly 2, so that the vibration energy dissipation effect of the tower drum 4 is greatly improved. And one end of the damping damper 13 slides circumferentially relative to the tower drum 4 when the tower drum 4 vibrates, and the other end of the damping damper 13 slides axially relative to the tower drum 4, so that flexible connection between the tower drum 4 and the drum body reinforcing assembly 1 is formed, and compared with rigid connection, the flexible connection enables the tower drum 4 to have a certain deformation space when in vibration, and the vibration of the tower drum 4 in multiple directions can be reduced better. Therefore, the invention can realize the effective vibration reduction of the tower 4 in different positions and in complex stress states while ensuring the reliable bearing capacity of the tower 4.
Further, as shown in fig. 5, 8 and 12, the barrel reinforcing assembly 1 includes a torsion detecting member 14, a bending detecting member 15 and a universal joint 16. The torsion detection piece 14 is arranged on one side of the damping shock absorber 13, which slides along the circumferential direction relative to the tower 4, and is used for detecting the torsion of the tower 4; the bending detection piece 15 is arranged on one side of the damping vibration absorber 13, which axially slides relative to the tower 4, and is used for detecting the bending amount of the tower 4; the two universal joints 16 are respectively arranged at two ends of the damping vibration absorber 13, and the universal joints 16 are provided with a vertical electromagnetic suction part 161 and a horizontal electromagnetic suction part 162. The vertical electromagnetic suction portion 161 restricts the horizontal rotation of the universal joint 16 when energized, the horizontal electromagnetic suction portion 162 restricts the vertical rotation of the universal joint 16 when energized, and the vertical electromagnetic suction portion 161 and the horizontal electromagnetic suction portion 162 enable the universal joint 16 to horizontally and vertically rotate when deenergized, which enables the universal joint 16 to rotate according to the specific stress and deformation direction of the tower 4.
If the torque detection value of the torsion detection member 14 reaches the preset value of the torsion of the tower, which indicates that the torsion amount of the tower 4 is large, at this time, the torsion detection member 14 sends a power-off signal to the horizontal electromagnetic suction part 162, and the limit of the universal joint 16 in the horizontal direction is released, so that the damping vibration damper 13 can horizontally rotate, and vibration damping and energy consumption in the torsion direction of the tower 4 are realized. If the torque detection value of the torsion detection member 14 does not reach the preset value of the torsion of the tower, it indicates that the torsion amount of the tower 4 is small or no torsion occurs, at this time, the torsion detection member 14 sends an energizing signal to the horizontal electromagnetic suction portion 162, and the universal joint 16 limits in the horizontal direction, that is, when the torsion amount of the tower 4 is small, only the damping vibration absorber 13 is used to absorb vibration and consume energy.
If the bending detection value of the bending detection piece 15 reaches the preset tower bending value, it is indicated that the tower 4 is large in bending amount, at this time, the bending detection piece 15 sends a power-off signal to the vertical electromagnetic suction part 161, and the vertical limit of the universal joint 16 is released, so that the damping vibration damper 13 can vertically rotate, and vibration damping and energy consumption in the bending direction of the tower 4 are realized. If the bending detection value of the bending detection member 15 does not reach the preset tower bending value, it is indicated that the tower 4 is bent slightly or is not bent, at this time, the bending detection member 15 sends an energizing signal to the vertical electromagnetic suction portion 161, and the universal joint 16 is vertically limited, that is, when the bending amount of the tower 4 is small, only the damping vibration absorber 13 is used to absorb vibration and consume energy. The preset tower torsion value and the preset tower bending value can be set according to the actual conditions of the tower 4, such as vibration reduction requirement, the tower 4 specification and the like, and the invention is not limited.
The real-time detection of the whole deformation state and the stress condition of the tower 4 is realized by arranging the corresponding torsion detection piece 14 and the corresponding bending detection piece 15 at the sliding end of the damping vibration absorber 13; meanwhile, the vertical electromagnetic suction part 161 and the horizontal electromagnetic suction part 162 are controlled to be turned on and off by comparing the detected value with a preset value, so that the universal joint 16 can rotate according to the specific stress and deformation direction of the tower 4, and the vibration energy consumption mode of the damping shock absorber 13 is selected. The invention realizes the timely detection and intervention of the vibration of the tower 4, ensures the effective energy consumption and vibration reduction of the tower 4 under different deformation and vibration conditions, reduces the occurrence of the damage of the tower 4, ensures the safe and stable operation of the wind generating set, and has simple structure and low cost.
Still further, as shown in fig. 4, one end of the damper 13 is slid with respect to the circumference of the tower 4 by the horizontal rail assembly 51, and the other end of the damper 13 is slid with respect to the axis of the tower 4 by the vertical rail assembly 52. As shown in fig. 8 and 12, the guide rail 53 of the vertical guide rail assembly 52 is mounted to the inner reinforcing ring 11, and the guide rail 53 of the horizontal guide rail assembly 51 is mounted to the outer reinforcing ring 12; as shown in fig. 9 and 13, the sliding portions 54 of the horizontal rail assembly 51 and the vertical rail assembly 52 are each provided with a damper connecting plate 55; as shown in fig. 5, two yoke arms 163 of the universal joint 16 are provided separately to the damper connecting plate 55 and the damper 13. The vibration of the tower drum 4 can be transmitted to the damping vibration absorber 13 for consumption through the guide assembly 5 and the universal joint 16, and the synchronous and effective operation of the sliding and rotating energy consumption functions of the damping vibration absorber 13 is realized through the reasonable layout of the guide assembly 5 and the universal joint 16, so that the effective energy consumption vibration reduction of the tower drum 5 is ensured. In other embodiments, the rails 53 of the vertical rail assembly 52 may be mounted to the outer stiffener ring 12 and the rails 53 of the horizontal rail assembly 51 may be mounted to the inner stiffener ring 11.
As shown in fig. 8 and 12, the torsion detecting member 14 is provided on one side in the horizontal direction of the rail 53 of the horizontal rail assembly 51, and the bending detecting member 15 is provided on one side in the vertical direction of the rail 53 of the vertical rail assembly 52. The torsion detecting member 14 and the bending detecting member 15 can judge the torsion and bending of the tower 4 by detecting the distance between the detecting member and the sliding portion 54, and the detection is convenient, the accuracy is high, and the structure is simple.
In this embodiment, the torsion detecting member 14 and the bending detecting member 15 are infrared rangefinders; in other embodiments, the torsion detecting member 14 and the bending detecting member 15 may be a detecting structure capable of ensuring effective detection of the torsion and bending of the tower 4, such as a laser range finder.
In the present embodiment, the guide rails 53 of the horizontal guide rail assembly 51 and the vertical guide rail assembly 52 are two oppositely arranged guide rails 53, and the sliding part 54 is slidably arranged between the two guide rails 53; in other embodiments, the number of the guide rails 53 may be enough to ensure the sliding portion 54 slides reliably, and the track length of the guide rails 53 may be adjusted according to actual requirements.
Further, the inner reinforcing ring 11 and the outer reinforcing ring 12 are provided with a guide rail placing groove 56, and the guide rail 53 is installed in the guide rail placing groove 56; the bottom surface of the damper connecting plate 55 is higher than the top surface of the rail housing groove 56. The device ensures that the damping shock absorber 13 effectively slides and damps, and has compact structure and small occupied space.
Further, as shown in fig. 14 and 15, the vertical electromagnetic attraction portion 161 and the horizontal electromagnetic attraction portion 162 each include a magnetically permeable plate and an electromagnet; the universal joint 16 is a cross-shaft type universal joint including a cross shaft 164 and two joint forks 163. The electromagnets of the vertical electromagnetic suction portion 161 are arranged on the upper and lower surfaces of the intersection of the cross shaft 164, and the electromagnets of the horizontal electromagnetic suction portion 162 are arranged on the side surface of the intersection of the cross shaft 164 opposite to the universal joint fork 163; the magnetic plate is located on the opposite surface of yoke 163 from the electromagnet. The electromagnet is powered on or off when receiving the on-off electric signal of the torsion detecting piece 14 or the bending detecting piece 15 so as to be attracted or separated from the magnetic conduction plate, so that the universal joint 16 vertically and/or horizontally rotates or limits rotation, and the magnetic attraction part is compact in layout, and the structure of the universal joint 16 is not required to be changed.
As shown in fig. 16 to 19, the bottom reinforcement assembly 2 includes an inner reinforcement cylinder 21, an outer reinforcement cylinder 22, a bottom connection plate 23, and a concrete reinforcement. Wherein, the inner reinforcement cylinder 21 holds the tower cylinder 4 tightly so as to improve the local bearing capacity of the tower cylinder 4; the outer reinforcement cylinder 22 is arranged on the outer side of the inner reinforcement cylinder 21, and the outer reinforcement cylinder 22 is connected with the ground through a flange plate; the bottom connecting plates 23 are connected between the inner reinforcing cylinder 21 and the outer reinforcing cylinder 22, a plurality of bottom connecting plates 23 are arranged at intervals along the periphery of the inner reinforcing cylinder 21 to form a rigid reinforcing structure of the bottom of the tower cylinder 4, and simultaneously, the bottom reinforcing assembly 2 provides supporting force for the cylinder body reinforcing assembly 1 through the connecting rod assembly 3; the concrete reinforcement is filled between the inner reinforcing cylinder 21 and the outer reinforcing cylinder 22 to further enhance the reinforcing effect of the tower cylinder 4. The invention adopts a rigid reinforcing mode at the bottom of the tower 4 with the greatest stress, and adopts a rigid-flexible concurrent reinforcing mode at the middle part of the tower 4 with more complex stress, namely adopts a corresponding reinforcing mode aiming at stress states of different positions of the tower 4, thereby ensuring the integral reinforcing effect of the tower 4.
Further, the inner reinforcement cylinder 21 and the inner reinforcement ring 11 each include two semi-annular hoops 211. One end of two semi-annular anchor ear 211 is articulated each other, the other end of two semi-annular anchor ear 211 is pegged graft each other, the grafting position of two semi-annular anchor ear 211 is equipped with adjusting gap 212, adjusting gap 212 is adjusted through locating semi-annular anchor ear 211 grafting position's fastener 213, avoided because interior reinforcement section of thick bamboo 21 and interior reinforcement ring 11 lead to unable laminating, the emergence of easy landing phenomenon with tower section of thick bamboo 4 size error, it ensures that semi-annular anchor ear 211 hugs tightly tower section of thick bamboo 4 in, make semi-annular anchor ear 211 apply the adjustable stress of giving tower section of thick bamboo 4, better guaranteed the reliable reinforcement of tower section of thick bamboo 4.
In the present embodiment, as shown in fig. 1 to 3, the link rod assembly 3 includes an outer hinge rod 31, a first inner hinge rod 32, and a second inner hinge rod 33. Wherein the outer hinge rod 31 is connected between the adjacent outer reinforcing ring 12 and between the lowermost outer reinforcing ring 12 and the outer reinforcing cylinder 22; the first inner hinge rod 32 is connected between the adjacent outer and inner reinforcing rings 12 and 12, and between the lowermost outer reinforcing ring 12 and the inner reinforcing cylinder 21; the second inner hinge rod 33 is connected between the outer fastening ring 12 at the lowermost end and the bottom connecting plate 23. The tower drum 4 is provided with the integrally stable reinforcing structure, the integral strength and rigidity of the tower drum 4 are greatly improved, and vibration energy of the tower drum 4 can be transmitted to the ground through the drum body reinforcing component 1, the connecting rod component 3 and the bottom reinforcing component 2 for dissipation, so that the energy consumption effect is good, and the service life and the safety reliability of the tower drum 4 are greatly improved.
In this embodiment, the number of the shell reinforcing assemblies 1 may be set according to the length of the tower 4 and the actual reinforcing vibration-damping requirements. Further, the width of the inner reinforcing ring 11 may be set to be larger than that of the outer reinforcing ring 12, so as to ensure that the barrel reinforcing assembly 1 better fits the tower 4, and improve the local bearing capacity of the tower 4. In this embodiment, the damping vibration damper 13 is a spring damping vibration damper.
Example 2
Fig. 8 and 12 show another embodiment of a wind power tower reinforcing apparatus according to the present invention, which is substantially the same as the previous embodiment, except that two ends of the damping vibration damper 13 of the present embodiment are respectively provided with a set of eddy current damping members 6, and the eddy current damping members 6 include energy-dissipating magnetic steel 61 and conductor plates 62 which are arranged opposite to each other. The energy-consumption magnetic steel 61 is arranged at two end sides of the damping vibration absorber 13, and the energy-consumption magnetic steel 61 can slide along with the damping vibration absorber 13; the conductor plate 62 is fixed to the inner reinforcing ring 11 or the outer reinforcing ring 12.
When the damping vibration absorber 13 slides, the energy-consumption magnetic steel 61 and the conductor plate 62 generate relative motion, the moving range of the energy-consumption magnetic steel 61 is always positioned in the conductor plate 62, at the moment, the conductor plate 62 cuts a magnetic induction line to generate an eddy current damping force, the tower 4 vibrates less and less until stopping under the eddy current damping force, so that vibration energy is finally converted into heat energy generated by eddy current, and the purpose of energy consumption and vibration reduction is achieved. In other embodiments, the energy-dissipating magnetic steel 61 may be a permanent magnet made of other materials.
As shown in fig. 8 and 12, the energy-dissipating magnetic steel 61 is provided on the sliding portion 54 of the horizontal rail assembly 51 or the vertical rail assembly 52; the conductor plate 62 is disposed on one side of the horizontal rail assembly 51 or the vertical rail assembly 52 perpendicular to the rail 53, and the conductor plate 62 is disposed on one side of the vertical rail assembly 52 perpendicular to the rail 53. An elastic damper 57 is arranged below the sliding part 54 of the vertical guide rail assembly 52, and the elastic damper 57 plays a role in supporting the sliding part 54 and reducing vertical vibration of the tower 4. In other embodiments, the conductor plates 62 may be disposed on the side of the horizontal rail assembly 51 or the vertical rail assembly 52 parallel to the rail 53, and the number of the conductor plates 62 may be set according to the actual vibration reduction requirement, for example, the conductor plates 62 may be disposed on the side parallel to and perpendicular to the rail 53, or the conductor plates 62 may be disposed on the side parallel to or perpendicular to the rail 53.
More preferably, the eddy current damping member 6 may determine whether to turn on or not by the detection values of the torsion detection member 14 and the bending detection member 15, that is, when the detection value exceeds a preset range value, the eddy current damping member 6 is turned on; otherwise, the eddy current damping member 6 is turned off.
When the tower barrel is deformed and swayed slightly, the vertical electromagnetic suction part 161 or the horizontal electromagnetic suction part 162 at the universal joint 16 is in an electrified state, the universal joint 16 does not rotate, and the tower barrel 4 dissipates vibration energy through the damping vibration absorber 13, so that the purpose of reducing vibration is achieved.
When the tower barrel is greatly deformed and in a stress state, the method can be divided into two cases, if the bending detection value of the bending detection piece 15 reaches the preset bending value of the tower barrel, the vertical electromagnetic suction part 161 at the position of the universal joint 16 is closed when the bending detection value of the tower barrel 4 is large, at the moment, the damping vibration damper 13 can vertically rotate, the eddy current damping component 6 at the position of the vertical guide rail assembly 52 is electrified, and the bending deformation of the tower barrel 4 can be effectively weakened through the actions of the damping vibration damper 13 and the vertical guide rail assembly, so that the tower barrel 4 returns to a normal stress state. If the torque detection value of the torsion detection member 14 reaches the preset value of the torsion of the tower, which means that the torsion of the tower 4 is large, the horizontal electromagnetic suction part 162 at the universal joint 16 is closed, at this time, the damping vibration damper 13 can horizontally rotate, and the eddy current damping component 6 at the position of the horizontal guide rail assembly 51 is electrified, so that the torsion deformation of the tower 4 can be effectively weakened through the actions of the two components, and the tower 4 returns to a normal stress state.
When the tower barrel is in a large deformation and stress state, the bending detection value of the bending detection piece 15 reaches the preset tower barrel bending value, the torque detection value of the torsion detection piece 14 reaches the preset tower barrel torsion value, the bending amount and the torsion amount of the tower barrel 4 are large, the vertical electromagnetic suction part 161 and the horizontal electromagnetic suction part 162 at the universal joint 16 are closed, at the moment, the damping vibration damper 13 can rotate along the vertical and horizontal directions, the eddy current damping part 6 is electrified, the bending and torsion deformation of the tower barrel 4 can be effectively weakened through the actions of the two parts, and the purposes of resisting the maximum deformation and maintaining the structural stability are achieved.
Therefore, the invention adopts the combined arrangement mode of the damping shock absorber 13, the control universal joint 16 for rotation and the control of the on-off state of the eddy current damping component 6, so that the tower 4 can take corresponding vibration energy consumption measures in different vibration environments, the vibration energy consumption effect of the tower 4 is greatly improved, and the structure is compact and simple.
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 respective embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (10)
1. The wind power tower drum reinforcing device is characterized by comprising a plurality of groups of drum body reinforcing assemblies, a bottom reinforcing assembly and a connecting rod assembly, wherein the drum body reinforcing assemblies are arranged at intervals along the axial direction of a tower drum, the bottom reinforcing assembly is arranged at the bottom of the tower drum, and the connecting rod assembly is used for connecting adjacent drum body reinforcing assemblies, the bottom reinforcing assembly and the drum body reinforcing assembly at the lowest end; the shell reinforcing assembly comprises an inner reinforcing ring for tightly holding the tower, an outer reinforcing ring arranged on the outer side of the inner reinforcing ring, and a damping vibration damper connected between the inner reinforcing ring and the outer reinforcing ring, wherein one end of the damping vibration damper slides circumferentially relative to the tower and the other end slides axially relative to the tower when the tower vibrates.
2. A wind power tower reinforcing device according to claim 1, wherein the tower reinforcing assembly comprises a torsion detecting member for detecting the torsion amount of the tower, a bending detecting member for detecting the bending amount of the tower, and two universal joints for rotating the damping damper relative to the tower when the tower vibrates, wherein the torsion detecting member is arranged on one side of the damping damper which slides circumferentially relative to the tower, the bending detecting member is arranged on one side of the damping damper which slides axially relative to the tower, the two universal joints are respectively arranged at two ends of the damping damper, and the universal joints are provided with vertical electromagnetic absorbing parts for limiting the vertical rotation of the damping damper and horizontal electromagnetic absorbing parts for limiting the horizontal rotation of the damping damper;
if the torque detection value of the torsion detection piece reaches a preset tower barrel torsion value, the torsion detection piece sends a power-off signal to the horizontal electromagnetic suction part; if the torque detection value of the torsion detection piece does not reach the preset tower torsion value, the torsion detection piece sends an electrifying signal to the horizontal electromagnetic suction part;
if the bending detection value of the bending detection piece reaches a preset tower barrel bending value, the bending detection piece sends a power-off signal to the vertical electromagnetic suction part; and if the bending detection value of the bending detection piece does not reach the preset tower barrel bending value, the bending detection piece sends an electrifying signal to the vertical electromagnetic suction part.
3. The wind power tower reinforcement device according to claim 2, wherein one end of the damping vibration damper slides circumferentially relative to the tower through a horizontal rail assembly and the other end slides axially relative to the tower through a vertical rail assembly; the guide rails of the horizontal guide rail assembly and the vertical guide rail assembly are respectively arranged on the inner reinforcing ring and the outer reinforcing ring, the sliding parts of the horizontal guide rail assembly and the vertical guide rail assembly are respectively provided with a shock absorber connecting plate, and the two universal joint forks of the universal joint are respectively arranged on the shock absorber connecting plates and the damping shock absorber; the torsion detection piece is arranged on one side of the horizontal guide rail assembly along the horizontal direction, and the bending detection piece is arranged on one side of the vertical guide rail assembly along the vertical direction.
4. A wind power tower strengthening device according to claim 3, wherein the inner strengthening ring and the outer strengthening ring are provided with a guide rail placing groove for installing a guide rail, and the bottom surface of the shock absorber connecting plate is higher than the top surface of the guide rail placing groove.
5. A wind power tower reinforcement device according to any of claims 2 to 4, wherein the vertical electromagnetic attraction and the horizontal electromagnetic attraction each comprise a magnetically permeable plate and an electromagnet; the universal joint is a cross shaft type universal joint, and the cross shaft type universal joint comprises a cross shaft and two universal joint forks; the electromagnets of the vertical electromagnetic suction part are arranged on the upper surface and the lower surface of the cross shaft intersection, and the electromagnets of the horizontal electromagnetic suction part are arranged on the side surface of the cross shaft intersection opposite to the universal joint fork; the magnetic conduction plate is positioned on the surface of the universal joint fork opposite to the electromagnet.
6. A wind power tower reinforcing apparatus according to any one of claims 1 to 4, wherein two ends of the damping damper are respectively provided with a set of eddy current damping parts for reducing circumferential and axial sliding of the damping damper relative to the tower, the eddy current damping parts comprising oppositely arranged energy-dissipating magnetic steel and conductor plates; the energy consumption magnetic steel is positioned at two end sides of the damping vibration damper and can slide along with the damping vibration damper; the conductor plate is fixed on the inner reinforcing ring or the outer reinforcing ring; the moving range of the energy-consumption magnetic steel is always positioned in the conductor plate.
7. The wind power tower reinforcement device according to claim 6, wherein one end of the damping vibration damper slides circumferentially relative to the tower through a horizontal rail assembly and the other end slides axially relative to the tower through a vertical rail assembly; the energy-consumption magnetic steel is arranged on the sliding part of the horizontal guide rail assembly or the vertical guide rail assembly; the conductor plate is arranged on one side of the horizontal guide rail assembly, which is vertical and/or parallel to the guide rail, and the conductor plate is arranged on one side of the vertical guide rail assembly, which is vertical and/or parallel to the guide rail.
8. A wind power tower strengthening device according to any one of claims 1 to 4, wherein the bottom strengthening assembly comprises an inner strengthening cylinder, an outer strengthening cylinder, a bottom connecting plate and a concrete strengthening member, the inner strengthening cylinder clasps the tower cylinder, the outer strengthening cylinder is arranged on the outer side of the inner strengthening cylinder, the bottom connecting plate is connected between the inner strengthening cylinder and the outer strengthening cylinder, and the concrete strengthening member is filled between the inner strengthening cylinder and the outer strengthening cylinder.
9. The wind power tower reinforcing device according to claim 8, wherein the inner reinforcing cylinder and the inner reinforcing ring comprise two semi-annular hoops, one ends of the two semi-annular hoops are hinged to each other, the other ends of the two semi-annular hoops are spliced with each other, an adjusting gap for adjusting the inner diameter of the semi-annular hoops is formed in the splicing position of the two semi-annular hoops, and the adjusting gap is adjusted through a fastener arranged at the splicing position of the semi-annular hoops.
10. The wind tower reinforcement device of claim 8, wherein the connecting rod assembly comprises an outer hinge rod, a first inner hinge rod, and a second inner hinge rod, wherein the outer hinge rod is connected between adjacent outer reinforcement rings and the lowermost outer reinforcement ring and the outer reinforcement cylinder; the first inner hinging rod is connected between the adjacent outer reinforcing ring and the inner reinforcing ring and between the outer reinforcing ring and the inner reinforcing cylinder at the bottommost end; the second inner hinge rod is connected between the outer fastening ring at the lowest end and the bottom connecting plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310362675.XA CN116624339B (en) | 2023-04-06 | 2023-04-06 | Wind power tower cylinder reinforcing device |
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| CN202310362675.XA CN116624339B (en) | 2023-04-06 | 2023-04-06 | Wind power tower cylinder reinforcing device |
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Cited By (1)
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| CN117662675A (en) * | 2024-01-29 | 2024-03-08 | 江苏盐城海风科技有限公司 | Vibration damper for wind power generation equipment |
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