CN108561487A - Damper for tower of wind generating set and tower of wind generating set - Google Patents
Damper for tower of wind generating set and tower of wind generating set Download PDFInfo
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- CN108561487A CN108561487A CN201810553274.1A CN201810553274A CN108561487A CN 108561487 A CN108561487 A CN 108561487A CN 201810553274 A CN201810553274 A CN 201810553274A CN 108561487 A CN108561487 A CN 108561487A
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- Prior art keywords
- tower
- damper
- generating set
- power generating
- wind power
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- 238000013016 damping Methods 0.000 claims description 94
- 239000007788 liquid Substances 0.000 claims description 90
- 230000000694 effects Effects 0.000 description 17
- 238000009434 installation Methods 0.000 description 9
- 230000005764 inhibitory process Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000007789 sealing Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical class CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/002—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising at least one fluid spring
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention provides a damper for a tower of a wind generating set and the tower of the wind generating set. According to the damper for the tower of the wind generating set and the tower of the wind generating set, the negative influence of second-order vibration on the tower in a strong wind environment can be reduced, and the safety of the tower is improved.
Description
Technical field
The present invention relates to a kind of damper of tower for wind power generating set and the towers of wind power generating set.
Background technology
For the tower of wind power generating set, according to the generation principle of vortex-induced vibration, in tower when blowing air over tower
The vortex street that rear end generates antisymmetry arrangement influences whether the variation of tower surface pressing, pressure when whirlpool falls off from tower surface
Variation to tower generate one excitation, dimensionless number Strouhal number St (Strouhal number) is in hydrodynamics
Middle that the similarity criterion introduced when similar physics and modelling is discussed, for the peripheral flow of such as tower, St=fD/V, here, f is
Whirlpool cross frequence, D are characteristic length (that is, tower overall diameters), and V is fluid velocity (that is, wind speed).When wind speed is from low speed to height
When speed increases, tower can undergo its single order vibration, second order vibration successively.
Currently, the vibration suppression of the tower of wind power generating set is mainly reflected in in its single order vibration suppression, than
The wide restraining device used is tuned mass damper (TMD), for example, pendulum-type TMD can be arranged at the top of tower, this
In the case of kind, the pendulum length of pendulum-type TMD is 10m or so, during design and installation, needs the fortune of the mass block in view of TMD
The problems such as defeated, limit function, causes its design, transport and installation cost higher.If using fluid damping for single order vibration
Device is as damping unit, and according to the requirement of damper, liquid sloshing frequency is close to pylon fundamental frequency (about 0.1Hz-
0.2Hz).It can be in 10m or so according to the damper diameter (or length of side) designed in this way.In view of land transport condition tower diameter
Generally 4.5m, therefore such damper can not be mounted in tower, to which single order can not be inhibited using liquid condenser
Vibration.
When the form of expression of tower vibration is mainly reflected in second order vibration, frequency is vibrated higher than single order, if using
Pendulum-type TMD, design pendulum length is only 200mm or so, however, can not design reliable TMD for so short pendulum length.Cause
This, can use the TMD of pendulum-type spring mixing, but with more structure types are introduced, the design of TMD, manufacture can be made to become
Complexity, to be had adverse effect on to cost, reliability etc..
Because the corresponding wind speed of second order vibration is big, frequency is high, vibrational energy is big, therefore it is dangerous also larger, for work
Making personnel safety, wind power generating set load etc. has threat, when especially high soft tower wind power generating set is under strong wind atmosphere,
It sways one's hips vibration there may be lasting second order, such vibration all has unit fatigue load and unit safety prodigious
Negative effect.
Therefore, it is necessary to a kind of inhibition second order vibration of tower can be applied to wind power generating set and convenient for manufacture, section
About cost, the simple damper of installation.
Invention content
The negative effect etc. that tower is brought is asked in order to solve to act on the second order vibration in the tower of wind power generating set
Topic, the present invention provide a kind of inhibition second order vibration of the tower can be applied to wind power generating set and convenient for manufacture, save at
Originally, the simple damper of installation.
An aspect of of the present present invention provides a kind of damper of the tower for wind power generating set, and the damper includes shell
Body accommodates liquid in the shell, to inhibit the tower of the wind power generating set by the inertia force or shaking of liquid
Second order vibration.
Preferably, the damper may also include improvement of damping device, and the improvement of damping device setting can be in the shell
In body, to increase damping force.
Preferably, the improvement of damping device may include at least one damping sheet for being formed with opening, described at least one
Damping sheet may be provided under the liquid level on the inner wall of the shell and positioned at the liquid.
Preferably, the improvement of damping device may include that hollow cylinder, the cylinder can be collectively formed with the shell
Ring-shaped cavity, the liquid may be provided in the ring-shaped cavity.
Preferably, the improvement of damping device may include the demarcation strip being vertically situated in the shell, the separation
The inner space of the shell can be separated into multiple spaces by plate.
Preferably, the improvement of damping device may include that at least one damping screen, at least one damping screen can be fixed
Under liquid level on the inner wall of the shell and positioned at the liquid.
Preferably, the damper may also include the liquid level gauge being arranged on the side wall of the shell, to pass through the liquid
Position meter determines the liquid level position of the liquid.
Preferably, the damper may also include damping device, and the damping device may be provided at the bottom of the shell,
To reduce the vibrations of the shell.
Another aspect of the present invention provides a kind of tower of wind power generating set, and the tower includes being used for as described above
The damper of the tower of wind power generating set, the damper may be provided at the tower in addition to topmost tower segments and most
In tower segments other than the tower segments of lower part.
Preferably, the damper may be provided at 40% to 80% altitude range of the total height of the tower.
Preferably, multiple dampers are may be provided in the tower, multiple dampers can be in the horizontal direction
It is arranged on the mounting platform of the tower or is vertically stacked on the mounting platform.
The damper of tower according to the present invention for wind power generating set and the tower of wind power generating set, can inhibit
The second order vibration of the tower of wind power generating set reduces tower and is negatively affected by second order vibration under strong wind atmosphere, improved
The safety of tower.
In addition, the damper of the tower according to the present invention for wind power generating set and the tower of wind power generating set,
It, can be preferable in the tower segments other than uppermost tower and lowermost tower for the tower that wind power generating set can be mounted on
Ground inhibits the second order vibration of tower.
In addition, the damper of the tower according to the present invention for wind power generating set and the tower of wind power generating set,
Different types of improvement of damping device is may be provided with, the breaker phenomenon of the second order frequency of the shaking of liquid can be reduced, improves damping
Effect.
In addition, the damper of the tower according to the present invention for wind power generating set and the tower of wind power generating set,
Convenient for designing and manufacturing, production cost is saved, installation is simple.
Description of the drawings
Fig. 1 is the stereogram of damper according to an embodiment of the invention.
Fig. 2 is the decomposition diagram of damper according to an embodiment of the invention.
Fig. 3 is the first exemplary schematic diagram of the improvement of damping device of damper according to an embodiment of the invention.
Fig. 4 is the second exemplary schematic diagram of the improvement of damping device of damper according to an embodiment of the invention.
Fig. 5 is the exemplary schematic diagram of third of the improvement of damping device of damper according to an embodiment of the invention.
Fig. 6 is the 4th exemplary schematic diagram of the improvement of damping device of damper according to an embodiment of the invention.
Fig. 7 is the curve graph for the installation site for indicating damper according to an embodiment of the invention.
Fig. 8 is the distribution diagram that damper according to an embodiment of the invention is mounted on the mounting platform of tower.
Fig. 9 is that another example distribution that damper according to an embodiment of the invention is mounted on the mounting platform of tower is shown
Figure.
Figure 10 is the schematic diagram that damper according to an embodiment of the invention is mounted in tower.
Drawing reference numeral explanation：
100：Damper, 110：Shell, 111：Bolt, 112：Spring pad, 113：Nut, 120：Damping device, 130：Liquid
Position meter, 141：Damping sheet, 142：Cylinder, 143：Demarcation strip, 144：Damping screen, 200：Mounting platform, L：Liquid.
Specific implementation mode
The embodiment of the present invention is described more fully with now with reference to attached drawing, the invention is shown in the accompanying drawings exemplary
Embodiment.In order to be clearly shown internal structure and the connection relation of each component, the members in attached drawing will be (for example, below will
The shell of damper in Fig. 1 to Fig. 6 of description) it is shown as transparent configuration.
The tower according to an embodiment of the invention for wind power generating set is described in detail below with reference to Fig. 1 to Fig. 6
Damper 100 specific configuration.
Damper 100 according to an embodiment of the invention includes shell 110.Liquid L is accommodated in shell 110, to pass through
The inertia force of liquid L or shaking inhibit the second order vibration of the tower of the wind power generating set.Specifically, liquid can be passed through
L inertia force under static state or the power that is generated under vibrating state by liquid L provide damping effect, to inhibit
The second order vibration of the tower of wind power generating set.Here, the second order vibration of the tower of wind power generating set refers to in tower
Section is rocked and the vibration of the frequency generally feature as 1Hz-2Hz ranges, is different from being happened at tower epimere and rocks frequency
Single order of the rate less than 0.3Hz vibrates.Liquid L in damper 100 can be used the viscosity such as glycols, propandiols and be more than
The liquid of the viscosity of water, during liquid sloshing, the big liquid of viscosity is not allowed to be also easy to produce the broken of liquid surface wave wave, so as to subtract
Rips are broken to cause damper efficiency to decline.
As shown in Fig. 2, shell 110 can have the form generally sealed, for example, be formed as hermetically sealed can form, to prevent
Only liquid L volatilizations or foreign matter enter in use, to ensure the damping of damper 100.It can at the top of shell 110
It is provided with for injecting or the opening of output liquid L and for the sealing cover and sealing ring of sealed opening.Sealing cover can be
The screw thread blind cover being screwed in opening, sealing ring can enhance the leakproofness of opening.On shell 110 (for example, top of shell 110)
It is also provided with lifting lug, in order to transport and install.
Shell 110 can be fixedly mounted to by welding, bolt fastener, glue bonding, magnet base absorption, engaging etc.
On mounting platform 200.For example, as shown in Fig. 2, flange in the bottom is may be provided in the bottom outer wall of shell 110, to pass through bolt
111, damper 100 is mounted on the mounting platform 200 with bolt hole (not shown) by spring pad 112 and nut 113.Bolt
111 can pass through the bolt hole of mounting platform 200, the flange hole of shell 110 and spring pad 112 or from top to bottom from bottom to top
Across spring pad 112, the bolt hole of the flange hole of shell 110 and mounting platform 200, then fastened by nut 113.
In addition, although showing the whole cylindrical form of shell 110 in figure, it is without being limited thereto, for example, also can be according to peace
Dress place needs or design needs to form as hexahedron or other are polyhedron-shaped.
Damper 100 may also include damping device 120, and damping device 120 is arranged below shell 110 (that is, shell 110
Between mounting platform), for reducing other the unnecessary disturbances of vibration (for example, white noise etc.) to liquid L.Damping device
Also mounting hole can be formed on 120, to be installed along on mounting platform 200 by the fasteners such as bolt 111 and shell 110.
As an example, damping device 120 can be the shock-absorption backing plate formed using materials such as rubber.
In addition, damper 100 may also include the liquid level gauge 130 being arranged on the side wall of shell 110, to pass through liquid level gauge
130 determine the liquid level position of liquid L.For example, as depicted in figs. 1 and 2, liquid level gauge 130 can be the projected side wall from shell 110
Gauge glass, to observe the position of internal liquid level by the mark of glass scales.Due to the inhibition frequency of damper 100
It is related with liquid level, therefore the inhibition frequency of damper can be adjusted by regulating liquid surface height, realization accurately presses down
Frequency processed.It can both prevent design from differing greatly with actual result in this way, and be compensated in time due to caused by long-play
The variation of frequency, while operation maintenance personnel being also more convenient for carry out O＆M.Here, the scale of liquid level gauge 130 can indicate liquid level
Height value can also indicate value corresponding with such as inhibition frequency of damper 100 after being computed etc..However, liquid level gauge 130
Construction it is without being limited thereto, can also realize as any other suitable device of liquid level can be monitored.
Damper 100 according to the present invention may also include improvement of damping device, and improvement of damping device is arranged in shell 110
In, to increase damping force, optimal damping effect.Each example of improvement of damping device is shown in Fig. 3 to Fig. 6.
As shown in figure 3, the first exemplary improvement of damping device according to the present invention may include damping sheet 141, damping sheet 141
It is arranged on the inner wall of shell 110, and can be formed as including the annular shape being open, damping sheet along the inner wall of shell 110
141 under the liquid level of liquid L, and when liquid sloshing, shaking each time can all be impacted on damping sheet 141, damping sheet
141 can consumable liquid part kinetic energy, reduce the amplitude of liquid sloshing, so as to increase damping when liquid sloshing, raising subtracts
It shakes effect.
Although showing that the according to the present invention first exemplary damping sheet 141 has the annular shape of central opening in Fig. 3,
But its is without being limited thereto, but it is formed as that the liquid of shaking can be generated blocking to increase any shape of damping force, example
Such as, semicircular in shape, radiation shapes etc. are may be alternatively formed to, and the shape, quantity, the forming position that are open are not limited specifically
System, for example, opening can be formed as circle, polygon, irregular shape or combination thereof etc. as shown in Figure 3 as needed
It is variously-shaped.Moreover it is preferred that as shown in figure 3, damping sheet 141 can be set in parallel with liquid level (or bottom surface of shell), but
It is not limited to this, can be also arranged relative to the inclined bottom surface of liquid level or shell.
In addition, being not limited to the example of Fig. 3, two or more damping sheets 141 can be set in shell 110 further to increase
Heavy damping effect.
As shown in figure 4, the second exemplary improvement of damping device according to the present invention may include hollow cylinder 142, cylinder
142 outer wall limits a ring-shaped cavity jointly with the inner wall of shell 110, and liquid L may be housed in the ring-shaped cavity.Cylinder
142 can be formed as cylindrical shape corresponding with shell 110 as illustrated in fig. 4, and be arranged in the middle position of shell 110, still
Cylinder 142 may be alternatively formed to the shape different from shell 110, for example, cylinder 142 can have the shapes such as polygon prism, polygonal pyramid, and
And can as needed with 110 eccentric setting of shell.
Due to the inner hollow of cylinder 142, total liquid quality of needs can be reduced.Meanwhile because in liquid sloshing
In the process, the middle part quality of entire damper 100 plays very small inertia force effect, and tribute of the external mass to damping
Maximum is offered, so even if cylinder 142 reduces the gross mass of damper 100 in hollow state, can still realize preferable damping
Effect.In addition, because liquid is limited in annular housing, the shaking direction of liquid is also restrained, so as to subtract
The breakers phenomenon such as second order frequency of small liquid sloshing.
As shown in figure 5, the exemplary improvement of damping device of third according to the present invention may include being vertically situated at shell 110
In demarcation strip 143, shell 110 is separated into multiple spaces, can not be connected to each other between each space by demarcation strip 143, will
Liquid L separates in different spaces so that liquid is limited in relatively small space, to reduce the liquid sloshing of high-order, increases
Add damping.As an example, demarcation strip 143 shown in fig. 5 is formed as four separation structures, but the construction of demarcation strip 143 is not limited to
This, can also be formed as the various forms such as bipartite structure, three separation structures, five separation structures, and the multiple spaces being separated into can
To be not decile.
As shown in fig. 6, the 4th exemplary improvement of damping device according to the present invention may include damping screen 144, damping screen 144
With reticular structure, and it is fixed under the liquid level on the inner wall of shell 110 and positioned at liquid L.Liquid L can be flowed through when shaking
Damping screen 144, damping screen 144 and liquid L generate interior friction, the kinetic energy of consumable liquid, to optimal damping device effect.Damping screen
144 quantity is unrestricted, and at least one damping screen 144 can be arranged according to the design needs.Moreover it is preferred that as shown in fig. 6,
Plane where damping screen 144 can be parallel with liquid level (or bottom surface of shell), and but not limited to this, also can relative to liquid level or
The inclined bottom surface of shell.
Damping sheet 141, cylinder 142, demarcation strip 143 and damping screen 144 described above are preferably by being not easy and damper
In the materials that react of liquid L formed, for example, being formed using stainless steel material, to improve the service life of damper.
In addition, damping sheet 141 described above, cylinder 142, demarcation strip 143 and damping screen 144 can be removable with shell 110
Unload or unremovably connect, for example, its can be integrally formed with shell 110 or by welding, the modes such as be bonded be mounted on shell
On the inner wall of body 110, it can also be installed by the modes such as riveting, engaging.
In addition, improvement of damping device may also comprise damping sheet 141, cylinder 142, demarcation strip 143 and damping described above
The combination of arbitrary two or more in net 144, for example, can damping sheet 141 and damping screen be arranged simultaneously within the case 110
144, damping screen 144 etc. can be either set in the case where being provided with cylinder 142 in annular housing or can be provided with point
Damping sheet 141 and/or damping screen 144 are set in the case of partition board 143 at least one compartment.
In addition, damper 100 according to the present invention inhibits mainly by passing to the power of liquid second order vibration
Tower is realized.In the damper 100 designed for second order vibration frequency, the design frequency and improvement of damping of damper 100
Each variable in the type of device, the diameter and liquid level of damper 100 has relationship, also, damper 100
Diameter and liquid level ratio relation to damping effect, and the quality of liquid is also influenced, to influence damper
Effect, therefore, it is necessary to the types etc. to the diameter of damper 100, liquid level, improvement of damping device to be designed,
And then improve the effect that damper 100 inhibits second order vibration.Such as：For cylindrical damper 100, in second order vibration frequency
For 1.2Hz or so feature when, the diameter substantially 0.5m-0.8m of damper, the liquid level in damper 100 generally hinders
0.3 times to 0.5 times of the diameter of Buddhist nun's device.In addition, being needed when designing liquid level in view of second order vibration frequency and liquid level are quick
The relationship of sensitivity.Effect is preferable when susceptibility desired value is 0.02Hz/5mm.
Damper 100 according to the present invention mainly for the vibration of frequency substantially 1Hz to 2Hz inhibition, when acting on
When second order vibration frequency in the tower of wind power generating set is 1Hz to 2Hz, the damper that the present invention can be used carries out vibration
Inhibit.
Damper according to an embodiment of the invention 100 is described in wind power generating set below with reference to Fig. 7 and Figure 10
Installation site in tower.
Tower shown in Fig. 7 is shaken in shape figure, and horizontal axis indicates second order vibration normalization of the tower under the effect of certain wind-force
Amplitude, the longitudinal axis indicate the height of tower.The maximum position of vibration that damper 100 is mounted on tower nearby shakes to the second order of tower
Dynamic inhibition is best, therefore, in order to ensure preferably to the inhibition of second order vibration, damper 100 is preferably installed
In 75% or more the position that its vibration of tower is maximum vibration.
As shown in Figure 10, damper 100 according to the present invention may be provided at tower in addition to topmost tower segments and most
In tower segments other than the tower segments of lower part, for example, 40% to 80% height in the total height of tower as shown in Figure 7 is arranged
Spend range.
The liquid sloshing frequency of damper 100 according to the present invention needs the second order vibration frequency with tower (that is, target subtracts
The frequency shaken) it is close, maximum effective mass (that is, liquid quality) is provided in the case that frequency is immediate.Because of tower
Second order vibration frequency generally in 1Hz or so, and to the damper of this Frequency Design 100 in size, the in form ideal shape of approach
State, therefore it is very beneficial for installation and application inside wind power generating set.
According to an embodiment of the invention, multiple dampers as described above are may be provided in the tower of wind power generating set
100, to be further superimposed damping capacity, reinforce overall damping.
Multiple dampers 100 can be arranged on the mounting platform 200 of tower in the horizontal direction as illustrated in fig. 8, Huo Zheru
It is vertically stacked on mounting platform 200 as shown in Figure 9, to reduce the area occupied of platform.Here, multiple dampers
100 may include the improvement of damping device being same or different to each other.
In the case where multiple dampers 100 are vertically stacked on mounting platform 200, in addition to being arranged in topmost
Damper 100 outside, the top (not shown) of other dampers 100 may be configured as shape flat on the whole, rather than such as Fig. 1
To shape for lugs shown in Fig. 6, can successfully stack other dampers 100 on it.In addition, in addition to being arranged most upper
Outside the damper 100 in portion, top flange is may be provided on the outer wall at the top of other dampers 100, to pass through fastener and heap
The flange in the bottom for being stacked in damper 100 thereon is fixed to one another, however, the connection type of the damper 100 to overlie one another is unlimited
In this, can also be connected by any other suitable connection type such as engaging, being bonded.
Although showing that three dampers 100 are stacked as being disposed with three groups of dampers on one group and mounting platform 200 in Fig. 9
Form, but its arrangement is without being limited thereto, can the heap at any appropriate position of mounting platform 200 according to actual needs
The damper of arbitrary group of number is folded, and every group of damper may include the damper more or less than three, and each group damper
The number of included damper can be different.
In addition, the distribution mode of Fig. 8 and multiple dampers 100 shown in Fig. 9 is not limited to layout shown in figure, it can basis
The position of the arbitrary multiple dampers of arrangement is actually needed.
The damper of tower according to the present invention for wind power generating set and the tower of wind power generating set, can inhibit
The second order vibration of the tower of wind power generating set reduces tower and is negatively affected by second order vibration under strong wind atmosphere, improved
The safety of tower.
In addition, the damper of the tower according to the present invention for wind power generating set and the tower of wind power generating set,
It, can be preferable in the tower segments other than uppermost tower and lowermost tower for the tower that wind power generating set can be mounted on
Ground inhibits the second order vibration of tower.
In addition, the damper of the tower according to the present invention for wind power generating set and the tower of wind power generating set,
Different types of improvement of damping device is may be provided with, the breaker phenomenon of the second order frequency of the shaking of liquid can be reduced, improves damping
Effect.
In addition, the damper of the tower according to the present invention for wind power generating set and the tower of wind power generating set,
Convenient for designing and manufacturing, production cost is saved, installation is simple.
Although specifically illustrating and describing the present invention with reference to exemplary embodiment of the present invention, this field is common
It is to be understood by the skilled artisans that in the case where not departing from the spirit and scope of the present invention being defined by the claims, it can be to it
The various changes of carry out form and details.
Claims (12)
1. a kind of damper of tower for wind power generating set, which is characterized in that the damper (100) includes shell
(110), liquid is accommodated in the shell (110), to inhibit the wind-driven generator by the inertia force or shaking of liquid
The second order vibration of the tower of group.
2. the damper of the tower according to claim 1 for wind power generating set, which is characterized in that the damper
(100) further include improvement of damping device, the improvement of damping device is arranged in the shell (110), to increase damping force.
3. the damper of the tower according to claim 2 for wind power generating set, which is characterized in that the damping increases
Intensity device includes at least one damping sheet (141) for being formed with opening, and at least one damping sheet (141) is arranged in the shell
Under liquid level on the inner wall of body (110) and positioned at the liquid.
4. the damper of the tower according to claim 2 for wind power generating set, which is characterized in that the damping increases
Intensity device includes hollow cylinder (142), and ring-shaped cavity, the liquid is collectively formed with the shell (110) in the cylinder (142)
Body is arranged in the ring-shaped cavity.
5. the damper of the tower according to claim 2 for wind power generating set, which is characterized in that the damping increases
Intensity device includes being vertically situated at demarcation strip (143) in the shell (110), and the demarcation strip (143) is by the shell
(110) inner space is separated into multiple spaces.
6. the damper of the tower according to claim 2 for wind power generating set, which is characterized in that the damping increases
Intensity device includes at least one damping screen (144), and at least one damping screen (144) is fixed on the interior of the shell (110)
Under liquid level on wall and positioned at the liquid.
7. the damper of the tower according to claim 1 for wind power generating set, which is characterized in that the damper
(100) further include the liquid level gauge (130) being arranged on the side wall of the shell (110), to be determined by the liquid level gauge (130)
The liquid level position of the liquid.
8. the damper of the tower according to claim 1 for wind power generating set, which is characterized in that the damper
(100) further include damping device (120), the damping device (120) is arranged in the bottom of the shell (110), to reduce
State the vibrations of shell (110).
9. the damper of the tower according to claim 1 for wind power generating set, which is characterized in that the damper
(100) it is cylindrical, a diameter of 0.5m-0.8m of the damper (100), the liquid in the damper (100)
Liquid level is 0.3 times to 0.5 times of diameter of the damper (100), to inhibit the tower of the wind power generating set
Frequency is the second order vibration of 1.2Hz.
10. a kind of tower of wind power generating set, which is characterized in that the tower includes such as any one of claim 1-9 institutes
The damper (100) for the tower for wind power generating set stated, the damper (100) are arranged in the tower in addition to most
In tower segments other than the tower segments on top and the tower segments of lowest part.
11. the tower of wind power generating set according to claim 10, which is characterized in that damper (100) setting
In 40% to 80% altitude range of the total height of the tower.
12. the tower of the wind power generating set according to claim 10 or 11, which is characterized in that be arranged in the tower
There are multiple dampers (100), multiple dampers (100) to be arranged in the mounting platform of the tower in the horizontal direction
(200) it on or is vertically stacked on the mounting platform (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810553274.1A CN108561487A (en) | 2018-05-31 | 2018-05-31 | Damper for tower of wind generating set and tower of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810553274.1A CN108561487A (en) | 2018-05-31 | 2018-05-31 | Damper for tower of wind generating set and tower of wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108561487A true CN108561487A (en) | 2018-09-21 |
Family
ID=63552719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810553274.1A Pending CN108561487A (en) | 2018-05-31 | 2018-05-31 | Damper for tower of wind generating set and tower of wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108561487A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163048A (en) * | 2018-09-25 | 2019-01-08 | 南京高传机电自动控制设备有限公司 | A kind of wind power generating set of efficient stable |
| CN111502057A (en) * | 2020-04-28 | 2020-08-07 | 上海电气风电集团股份有限公司 | Composite tower damper device |
| CN112855455A (en) * | 2021-01-21 | 2021-05-28 | 上海电气风电集团股份有限公司 | Floating foundation and fan system |
| CN112942069A (en) * | 2021-02-03 | 2021-06-11 | 大连理工大学 | Heaving mesh cloth device for inhibiting flutter of sea-crossing bridge |
| CN113109006A (en) * | 2020-01-13 | 2021-07-13 | 西门子歌美飒可再生能源公司 | Testing device and method for fatigue testing of wind turbine blades |
| CN113227569A (en) * | 2018-12-20 | 2021-08-06 | 维斯塔斯风力系统有限公司 | Modular tower damper system |
| CN113623140A (en) * | 2021-09-09 | 2021-11-09 | 三一重能股份有限公司 | Vortex-induced vibration suppression device of fan and fan |
| CN113738602A (en) * | 2020-05-28 | 2021-12-03 | 北京金风科创风电设备有限公司 | Damping integrated device, damper and wind generating set |
| CN113775902A (en) * | 2020-06-10 | 2021-12-10 | 北京金风科创风电设备有限公司 | Damper supporting device, damping system, tower barrel and assembling method of tower barrel |
| CN114687597A (en) * | 2020-12-31 | 2022-07-01 | 新疆金风科技股份有限公司 | Mounting structure and mounting method thereof, damper group, tower barrel and wind generating set |
| CN115217881A (en) * | 2022-07-15 | 2022-10-21 | 中国华能集团清洁能源技术研究院有限公司 | Liquid damper and wind driven generator |
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| CN112855455A (en) * | 2021-01-21 | 2021-05-28 | 上海电气风电集团股份有限公司 | Floating foundation and fan system |
| CN112942069B (en) * | 2021-02-03 | 2023-02-17 | 大连理工大学 | Heaving mesh cloth device for inhibiting flutter of sea-crossing bridge |
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