CN207229312U - Fairing, tower and wind power generating set - Google Patents
Fairing, tower and wind power generating set Download PDFInfo
- Publication number
- CN207229312U CN207229312U CN201721197336.7U CN201721197336U CN207229312U CN 207229312 U CN207229312 U CN 207229312U CN 201721197336 U CN201721197336 U CN 201721197336U CN 207229312 U CN207229312 U CN 207229312U
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- tower
- main part
- fairing
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- leading edge
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
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Abstract
The utility model provides a kind of fairing, tower and wind power generating set.Fairing, for wind power generating set, including the main part extended with being in the form of a column, main part include：The installing port set along extending direction perforation；With the leading edge portion and rear edge part being distributed in succession along the direction vertical with extending direction, the size of main part is in tapered trend by leading edge portion to rear edge part, and it is axisymmetric shape that main part has the string of a musical instrument of fairshaped profile and cross section along leading edge portion to rear edge part along the cross section of extending direction, and main part can be installed on tower in which circumferentially rotate via installing port along tower, and can make the direction of flow of leading edge portion object gas flow.Therefore, it is possible to realize that improvement flows through the wake flow of the air-flow of tower, the aerodynamic drag of tower is reduced, tower is reduced and one or more of the probability of vortex-induced vibration phenomenon purpose occurs.
Description
Technical field
It the utility model is related to technical field of wind power generation, more particularly to a kind of fairing, tower and wind-power electricity generation
Unit.
Background technology
With the development of Wind Power Generation Industry, the power of single wind generator group is increasing, and used tower is also more next
It is higher.But the tower in certain altitude position can be influenced be subject to stronger aerodynamic moment, therefore bottom of towe can be made to bear load
Increase.And when air-flow flows through bluff body (i.e. tower), due to stablizing in the anterior flowing along pressure portion air-flow of bluff body, still
When air-flow reaches bluff body rear side against pressure portion, since air-flow can not be attached to bluff body surface flow, it is disorderly in back pressure face
Under random eddy current effect, both sides periodically can come off, and direction of rotation is opposite, the biserial line vortex of queueing discipline, and process is non-linear
After effect, Karman vortex street occurs, it is possible to causing tower that vortex-induced vibration occurs.
And once vortex-induced vibration occurs for tower, then may last very long, at most up to more than ten hour.Lifting
During wind power generating set, the installation of cabin can be delayed.In addition, vortex-induced vibration can produce not this body structure of tower and its fastener
With the fatigue damage of degree, the service life of serious threat to tower.
At present, used in most wind power generating set in the axially disposed helical form riser structure solution in the surface of tower
Certainly the problem of vortex-induced vibration, and riser is fixed in tower by the way of wind temporarily.Although helical form riser structure can
Suppress vortex-induced vibration to a certain extent, but while vortex-induced vibration is suppressed, helical form riser can make the wind that tower is subject to
Load increase.And the making of helical form riser and mounting process are complicated, can also increase the cost of wind power generating set.
Therefore, there is an urgent need for a kind of new fairing, tower and wind power generating set.
Utility model content
Embodiment according to the present utility model, there is provided a kind of fairing, tower and wind power generating set, Neng Goushi
Now improve the gas flow shape for flowing through tower, improve wake flow, reduce the aerodynamic drag of tower, prevent tower from occurring in vortex-induced vibration
One or more purposes.
According to the one side of the utility model embodiment, there is provided a kind of fairing, for wind power generating set, bag
The main part extended with being in the form of a column is included, main part includes：The installing port set along extending direction perforation, for wind power generating set
Tower pass through；With the leading edge portion and rear edge part being distributed in succession along the direction vertical with extending direction, the size of main part
Be in tapered trend by leading edge portion to rear edge part, and main part along the cross section of extending direction have fairshaped profile and
The string of a musical instrument of the cross section along leading edge portion to rear edge part is axisymmetric shape, and main part can be circumferential along tower via installing port
Tower is rotatably mounted to, and the direction of flow of leading edge portion object gas flow can be made.
According to the one side of the utility model embodiment, fairing further includes connecting portion, is arranged on main part and tower
Between cylinder, main part can be rotatably connected at tower by connecting portion；The quantity of connecting portion is two or more, two or more
Connecting portion be axially spaced to arrange along tower.
According to the one side of the utility model embodiment, connecting portion is sliding bearing and/or rolling bearing.
According to the one side of the utility model embodiment, connecting portion further includes magnetic-adsorption structure, and connecting portion can lead to
Cross the periphery that magnetic-adsorption structure is connected to tower；Alternatively, connecting portion can be connected to the periphery of tower by bonded adhesives.
According to the one side of the utility model embodiment, rear edge part includes what is extended and intersect each other along extending direction
Two sides, two sides are in smoothing junction by the end of respective remote intersection location and leading edge portion, and two side phases
It is acute angle to hand over formed angle.
According to the one side of the utility model embodiment, formed angle is intersected less than or equal to 45 ° in two sides.
According to the one side of the utility model embodiment, leading edge portion includes the arc-shaped side extended along extending direction
Face, and the curvature of arc-shaped side is roughly the same with the curvature of tower.
According to the one side of the utility model embodiment, main part is surrounded by plate body, with being internally formed in main part
Cavity, fairing further include bearing rib, and bearing rib is set in the cavities in a manner of perpendicular to the string of a musical instrument, and are total to plate body
It is same to surround installing port.
According to the one side of the utility model embodiment, fairing further includes carinate layer, and carinate layer is at least in part
It is covered in the outer surface of main part and the ridge-like structure to extend including multiple parallel to each other and along main part extending direction.
According to the one side of the utility model embodiment, main part can be fixed with the cabin of wind power generating set to be connected
Connect, so that main part can follow cabin to be circumferentially rotated along tower；Alternatively, fairing further includes angle regulating unit, main body
Portion is connected with angle regulating unit, to drive main part to be circumferentially rotated along tower by angle regulating unit.
According to the other side of the utility model embodiment, a kind of tower is additionally provided, including：Tower body；With it is upper
The fairing stated, fairing are installed on tower body and positioned at the top of tower body by installing port.
According to the other side of the utility model embodiment, fairing along the length of tower axial direction and the length of tower
The ratio of degree is greater than or equal to 1/3.
According to another aspect of the utility model embodiment, a kind of wind power generating set is additionally provided, including it is above-mentioned
Tower.
To sum up, the fairing of the utility model embodiment, tower and wind power generating set, include leading edge by setting
Partly, rear leading edge portion and it is capable of the main part of the installing port that the tower of wind driven generator group passes through, by the size of main part
It is in tapered trend to be arranged to by leading edge portion to rear edge part, and it is streamlined main part is had along the cross section of extending direction
Profile and the cross section relative to the string of a musical instrument of leading edge portion to rear edge part be axisymmetric shape so that main part via
, can be by leading edge portion towards direction of flow, to pass through leading edge portion and trailing edge after its installing port is rotatably installed on tower
Guiding air-flow smooth-going in part flows through tower periphery.Perpendicular to direction of flow, fairing can effective water conservancy diversion, by flow around bluff bodies
Be converted to the streamlined of aerofoil profile well to stream, such a method can effectively suppress Karman vortex street, will not produce and appoint in flow field
What is adversely affected.As a result, flowing through the air-flow of tower, Karman vortex street phenomenon will not occur in the leeward side of tower, so that
Avoid tower that vortex-induced vibration occurs under the influence of the airflow, and reduce the aerodynamic drag of tower, and then making for tower can be increased
Use life and reliability.
Brief description of the drawings
This practicality may be better understood from the description to specific embodiment of the present utility model below in conjunction with the accompanying drawings
It is new, wherein：
By reading the detailed description made referring to the drawings to non-limiting example, other spies of the utility model
Sign, objects and advantages will become more apparent upon, wherein, the same or similar reference numeral represents the same or similar feature.
Fig. 1 is the dimensional structure diagram according to the wind power generating set of the utility model one embodiment；
Fig. 2 is the perspective structure schematic diagram according to the tower of the utility model one embodiment；
Fig. 3 is the dimensional structure diagram according to the fairing of the utility model one embodiment；
Fig. 4 is the overlooking the structure diagram of the fairing in Fig. 3；
Fig. 5 is the part-structure schematic diagram according to the tower of the utility model another embodiment.
Wherein：
1- wind power generating sets；
100- towers；101- towers；200- cabins；300- impeller sets；
10- fairings；11- main parts；111- leading edge portions；112- rear edge parts；113- installing ports；114- cavitys；
115- flanged joints side；116- extension sections；12- rolling bearings；121- bearing inner races；122- bearing outer rings；123- magnetic-adsorptions
Structure；13- bearing ribs；
20- tower bodies；
30- angle regulating units；31- controls babinet；32- gears.
Embodiment
The feature and exemplary embodiment of the various aspects of the utility model is described more fully below.Retouched in detail in following
In stating, it is proposed that many details, in order to provide the comprehensive understanding to the utility model.But for people in the art
It will be apparent that the utility model can be implemented in the case of some details being not required in these details for member.
The description to embodiment is used for the purpose of providing to the more preferable of the utility model by showing the example of the utility model below
Understanding.In the the accompanying drawings and the following description, at least part of known features and technology are not illustrated, to avoid to this reality
Unnecessary obscure is caused with new；Also, for clarity, it may be exaggerated the size of part-structure.It is identical attached in figure
Icon note represents same or similar structure, thus will omit their detailed description.In addition, feature described below,
Structure or characteristic can be incorporated in one or more embodiments in any suitable manner.
The noun of locality of middle appearance described below is the direction shown in figure, is not the fairing to the utility model
And the concrete structure of tower is defined.In the description of the utility model, it is also necessary to explanation, unless otherwise clear and definite
Regulation and limit, term " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or
It is detachably connected, or is integrally connected；It can be directly connected, can also be indirectly connected.For the ordinary skill people of this area
For member, visual concrete condition understands concrete meaning of the above-mentioned term in the utility model.
The fairing that the utility model embodiment provides can be installed on outside tower, and the gas of tower is flowed through by improving
Manifold state, can reduce the aerodynamic drag of tower, prevent tower from producing vortex-induced vibration, and can further reduce the whirlpool of complete machine
Excited vibration phenomenon.For example, when fairing is applied to wind power generating set lifting, it can play and the interim of tower is protected
Shield, to improve lifting efficiency.And be applied to fairing in the daily protection of tower, tower can be solved easily in air-flow
Under the influence of vortex-induced vibration occurs and the problem of destroy the stability of its structure.In addition, the embodiment of the utility model is not limited to
Fairing, in other examples, can also be applied to other needs and solve to be triggered whirlpool exciting by airflow influence by this
The structure of dynamic problem.
The utility model in order to better understand, the fairing with reference to Fig. 1 to Fig. 5 according to the utility model embodiment
And tower illustrates.
Fig. 1 is the dimensional structure diagram according to the wind power generating set 1 of the utility model one embodiment；Fig. 2 is root
According to the perspective structure schematic diagram of the tower 100 of the utility model one embodiment.Wind power generating set 1 according to Fig. 1
Overall structure, wind power generating set 1 include：Tower 100, cabin 200 and impeller sets 300.Tower 100 is used as whole wind-power electricity generation
The foundation structure of unit 1, supports the weight of cabin 200 and impeller sets 300, it requires that tower 100 has higher structure
Stability.Under the influence of the air-flow vortex of leeward side vortex-induced vibration occurs for tower 100 in order to prevent, to the structure of tower 100
Damage, fairing 10 is installed on the tower body 20 of tower 100.
As shown in Fig. 2, one embodiment according to the present utility model, fairing 10 includes the main body extended with being in the form of a column
Portion 11, main part 11 include：The leading edge portion 111 that is distributed in succession along the direction vertical with extending direction, rear edge part 112 and
The installing port 113 set along extending direction perforation.The size of main part 11 is by leading edge portion 111 to rear edge part 112 in tapered
Trend, and main part 11 has fairshaped profile and the cross section along leading edge portion relative to the cross section of extending direction
111 to the string of a musical instrument of rear edge part 112 be axisymmetric shape；The tower 100 that installing port 113 is capable of wind driven generator group 1 passes through.
Also, main part 11 can be installed on tower 100 in which circumferentially rotate via installing port 113 along tower 100.By further controlling master
Body portion 11 is circumferentially rotated along tower 100, can make the direction of flow of 111 object gas flow of leading edge portion, to pass through leading edge portion
111 and rear edge part 112 guide air-flow smooth-going flow through 100 periphery of tower.
Thus, after main part 11 is installed to tower 100, since main part 11 can be rotated relative to tower 100, institute
So as to the leading edge portion 111 of main part 11 is adjusted to the air-flow direction of flow of wind-oriented power generating unit, meanwhile, hinder marginal part
Points 112 deviate from the direction of flow so that air-flow can be formed along leading edge portion 111 and rear edge part 112 it is streamlined
Profile smoothes out the periphery for flowing through tower 100.So as to flowing through the wake flow shape of tower 100 by setting fairing 10 to improve
State so that flow through the air-flow of tower 100, Karman vortex street phenomenon will not occur in the leeward side of tower 100, so as to avoid tower
100 occur vortex-induced vibration under the influence of the airflow, ensure the stability of 100 structure of tower, and then can increase service life and reliable
Property.
Fig. 3 is the dimensional structure diagram according to the fairing 10 of the utility model one embodiment；Fig. 4 is in Fig. 3
Fairing 10 overlooking the structure diagram.As shown in Figure 3 and Figure 4, main part 11 extends with being in the form of a column, its leading edge portion
111 and rear edge part 112 sequentially connect, the string of a musical instrument is referred between the vertex of leading edge portion 111 and the vertex of rear edge part 112
Line.Main part 11 extends along direction perforation and is provided with installing port 113, so that main part 11 can via installing port 113
Rotationally install to tower 100.
In an optional embodiment, main part 11 is surrounded by a plate body, that is to say, that main part 11 is complete by one
Whole plate body encloses to set according to predetermined shape to be formed.Therefore, main part 11 is overall is configured to open at the both ends of extending direction
The hollow and thin-walled formula tube structure opened, the inside of main part 11 then form cavity 114, that is to say, that main part 11 is by stressed-skin construction
Form.Above-mentioned complete plate body structure is bent opposite to each other along its center line, so that two free ends of plate body structure intersect each other,
Before being sequentially formed by plate body structure in the direction perpendicular with the extending direction of main part 11 with arc-shaped side
111 and the rear edge part 112 with two sides to intersect each other are divided in edge.Certainly, simply main body is described herein suitability
The generation type in portion 11, and it is not the restriction to 11 production method of main part.Observed by illustrated in fig. 4 along extending direction
The cross section of the fairing 10 of (i.e. top view), it will be clearly understood that the main part 11 being made up of stressed-skin construction
Size is in tapered trend by leading edge portion 111 to rear edge part 112, and the cross section of main part 11 is axis pair relative to the string of a musical instrument
Claim shape.Simultaneously as main part 11 is made of overall stressed-skin construction, so between leading edge portion 111 and rear edge part 112
It can smoothly transition from connecting, that is to say, that the cross section of main part 11 has fairshaped profile, so that main part 11 is by structure
As similar symmetrical airfoil structure.
One embodiment according to the present utility model, due to also increasing therewith with the increase of 100 height of tower, its flexibility
Add, thus the top of tower 100 usually influenced by aerodynamic moment it is more serious.That is, aerodynamic moment is pushed up for tower 100
The gain of portion's amplitude is far longer than bottom, so in order to preferably protect the structure of tower 100, makes tower 100 from whirlpool exciting
It is dynamic to influence, it is necessary to which fairing 10 to be installed on to the tip position of tower body 20.In addition, in order to reach more preferable water conservancy diversion effect
The development length axial along tower body 20 of fairing 10 and the ratio of 20 length of tower body, can be set as greatly by fruit
In or equal to 1/3.That is, fairing 10 at least needs to cover about the 1/3 of 20 length of tower body.Certainly, at it
In his embodiment, the convenience that can also be segmented and lift according to tower is finely adjusted.
Thus, fairing 10 can be installed in tower 100, pass through the exterior region being radially distributed in succession along tower 100
Points 111 and rear edge part 112 flow around bluff bodies are effectively converted into the streamlined of aerofoil profile and are streamed, therefore can effectively suppress air-flow hair
Raw Karman vortex street phenomenon, avoids tower 100 that vortex-induced vibration occurs.Therefore 100 structure of tower can be protected, increase tower 100
Service life.Simultaneously as air-flow smooth-going flows through 100 periphery of tower, additionally it is possible to the aerodynamic drag of tower 100 is reduced, so as to drop
The load that low 100 bottom of tower is born.100 structure of tower is further protected, increases the service life of tower 100.
In addition, the material of main part 11 can be the material with certain degree of hardness, exemplarily, synthetic fibers can be used
Material, such as carbon fiber or glass fibre can be used.The manufacture craft of fairing 10 can be simplified using stressed-skin construction
Flow, and during wind power generating set is assembled, easy to the installation of fairing 10.And by stressed-skin construction using conjunction
Forming material so that the making of fairing 10 is simple and lighter weight, while can ensure the pneumatic of wind power generating set
Performance.Certain the utility model embodiment for main part 11 processing method and be not limited, as long as having main part 11
There is corresponding shape, can realize the purpose of guiding air-flow.
In an optional embodiment, the angle theta that is formed between intersect each other two sides of rear edge part 112
For acute angle.Thus, main part 11 can be by be formed radially longer converging transition of the rear edge part 112 along tower 100, and energy
Enough reduce the respective angle with the direction of flow of air-flow of two intersecting lateral faces of rear edge part 112.That is, work as rear edge part
When angle theta between 112 two sides is acute angle, rear edge part 112 can be more flat along the direction away from leading edge portion 111
It is inwardly indented slowly, so as to guide air-flow to be more smoothly bonded the outer contour flowing of main part 11, avoids air-flow in tower
There is Karman vortex street phenomenon backwards to air-flow side in cylinder 100, and triggers tower 100 that vortex-induced vibration occurs.Exemplarily, can incite somebody to action
The angle theta formed between intersect each other two sides of above-mentioned rear edge part 112 is set smaller than or equal to 45 °, with logical
Cross rear edge part 112 and realize that guiding air-flow more smoothly flows through the purpose of 100 periphery of tower, so as to more efficiently press down
Karman vortex street phenomenon occurs for the air-flow that system flows through tower 100, that is, can effectively suppress the vortex-induced vibration of tower 100.
In another optional embodiment, the curvature of the arc-shaped side of leading edge portion 111 can also be arranged to
The curvature of tower body 20 is roughly the same.Since the size of main part 11 is become by leading edge portion 111 to rear edge part 112 in decrement
Gesture, so that main part 11 can realize the purpose for effectively guiding air-flow smooth-going to flow through by minimum cross-sectional area.Cause
This, can save material, reduce manufacture cost.In addition, in order to avoid causing unnecessary waste, the side of leading edge portion 111
Side profile of the profile preferably no more than the cabin 200 above tower 100.
Since the generally hollow structure of main part 11, one embodiment according to the present utility model, fairing 10 also wrap
Bearing rib 13 is included, bearing rib 13 is arranged in the cavity 114 of main part 11, encloses to set with the inner wall of main part 11 to be formed
Installing port 113 (as shown in Fig. 1 or Fig. 4).Specifically, in the present embodiment, bearing rib 13 is the plate body of straight extension, its
It is arranged in the cavity 114 of main part 11 that (i.e. bearing rib 13 is in cavity 114 along the direction vertical with the string of a musical instrument of main part 11
Extend along the extending direction of main part 11), and bearing rib 13 is connected between the both sides plate body for surrounding rear edge part 112.
Thus, you can by bearing rib 13, opposite with bearing rib 13 and surround the plate body part of leading edge portion 111 and be connected
Plate body part between leading edge portion 111 and bearing rib 13 is enclosed jointly to be set to form installing port 113.In addition, the utility model
Embodiment is not limited for the connection mode between bearing rib 13 and main part 11, when main part 11 uses metal material
When, bearing rib 13 can be connected to main part 11 by the way of welding or integrated injection molding.
Certainly, in other optional embodiment, main part 11 can also be made of the plate body of Split type structure, also
It is to say, leading edge portion 111 and rear edge part 112 can be made of single plate body respectively.Exemplarily, if by main part 11
Blocked along the line of demarcation of leading edge portion 111 and rear edge part 112 as two parts, then can be separately through the lateral plate structure of arc
Leading edge portion 111 is formed, and the side plate to be intersected each other by two other forms rear edge part 112, and 111 He of leading edge portion
Need to smoothly transition from connecting between rear edge part 112, to ensure that main part 11 has fairshaped exterior contour.
Certainly, the form of the composition of main part 11 be not limited in above-described embodiment by way of platy structure surrounds.
In other examples, main part 11 can also be overall cylindricality, that is to say, that main part 11 except installing port 113 with
Outer part can be solid construction.As long as main part 11 can be formed along the direction vertical with extending direction be distributed in succession before
Edge points 111 and rear edge part 112, make the size of main part 11 by leading edge portion 111 to rear edge part 112 in tapered trend simultaneously
And main part 11 is formed fairshaped outer contour, so as to realize that tower is flowed through in guiding air-flow smooth-going by its outer surface
The purpose of 100 peripheries.Certainly, when main part 11 is not surrounded by platy structure, installing port 113 can be along extending direction
Perforation is opened in the cylindrical hole on main part 11.Certainly, installing port 113 is not limited to as cylindrical hole, it can be can allow for
Any shape that tower body 20 passes through, as long as connection that can be between realization body portion 11 and tower body 20.
In order to which main part 11 can be arranged on tower body 20 with circumferentially rotating around tower 100, fairing 10 is also
Including connecting portion, so that main part 11 can be rotatably connected at tower body 20 by connecting portion.Continuing with referring to Fig. 2 and
Fig. 4, in one exemplary embodiment, connecting portion is rolling bearing 12, bearing inner race 121 and the tower body of rolling bearing 12
20 outer wall connection；And inner wall of the bearing outer ring 122 of rolling bearing 12 then with installing port 113 is connected.Certainly, fairing 10
It can include multiple connecting portions, that is to say, that can be along the axial between main part 11 and tower body 20 of tower body 20
Multiple rolling bearings 12 are set, and by 12 compartment of terrain of rolling bearing along the axial arranged of tower body 20, so that main part 11 obtains
More firm attachment force is obtained, prevents fairing 10 to be moved along tower 100 is axial.
Exemplarily, connecting portion can also include magnetic-adsorption structure 123, so as to the bearing inner race 121 of rolling bearing 12
The outer wall of tower body 20 can be adsorbed in by magnetic-adsorption structure 123.In the present embodiment, magnetic-adsorption structure 123 is wrapped
Multiple circumferential equally distributed magnet bases of the bearing inner race 121 along rolling bearing 12 are included, by multiple magnet bases by bearing inner race
121 are fixedly connected on the outer wall of tower body 20, and are able to ensure that tower along circumferentially multiple magnet bases of bearing inner race 121
The reliability being connected with rolling bearing 12 of tube wall surface.122 utility model of bearing outer ring of rolling bearing 12 is fixedly installed in peace
Fill in mouth 113, such as can be connected between bearing outer ring 122 and stressed-skin construction and bearing rib 13 by way of interference fit
Connect, or connected by the way of glue sticking.Certainly, if bearing outer ring 122 can be fixedly connected on stressed-skin construction and
Bearing rib 13, makes bearing outer ring 122 be installed in installing port 113, and between stressed-skin construction and bearing rib 13 not
Relatively move.
Thus, you can main part 11 is rotatably connected at by tower body 20 by rolling bearing 12, and passes through rolling
Bearing 12 carries out axially position to main part 11, avoids main part 11 from being moved along tower body 20 is axial.In addition, the axis of rolling
The connection mode held between 12 bearing inner race 121 and tower body 20 may be replaced with by way of glue sticking, example
Such as bearing inner race 121 can be adhered to 20 periphery of tower body by acrylic compounds or epoxies glue.
Certainly, in some other embodiments, connecting portion can also be that sliding bearing etc. can be connected to main part 11
Between tower body 20, so that main part 11 can surround the knot that the circumferentially opposed tower body 20 of tower body 20 rotates
Structure.In addition, main part 11 can simply be needed in main body at this time by being directly installed in a manner of face contacts outside tower body 20
Baffle ring is set on the tower body 20 of the lower section of portion 11, using the effect for providing axial limiting as main part 11 by baffle ring.
An alternative embodiment according to the present utility model, fairing 10 (can also not show including carinate layer in figure
Go out), carinate layer is covered in the outer circumferential surface of main part 11 at least in part, to realize the purpose for reducing noise by carinate layer.Tool
Body, carinate layer include it is multiple arrange according to certain rules, arranged for example with mode parallel to each other and prolonging along main part 11
Stretch the ridge-like structure of direction extension.Exemplarily, the cross section of ridge-like structure can be triangle, rectangle or the shape such as trapezoidal.
By being arranged on the ridge-like structure of 11 outer circumferential surface of main part, the exhibition in stream whirlpool of air-flow formation can be limited to movement, so as to weaken
The intensity of 11 outer circumferential surface Turbulence-bursting of main part and duration, therefore reduce friction, that is, reduce air-flow and flow through main body
The resistance of 11 outer contour of portion, it is final to realize the purpose for reducing noise.
One embodiment according to the present utility model, exemplarily, in order to realize the main part 11 of fairing 10 along tower
Cylinder body 20 circumferentially rotates and makes the direction of flow of 111 object gas flow of leading edge portion, and guides air-flow smooth-going to flow through tower 100
Purpose, can be fixedly connected on cabin 200 by main part 11, so that main part 11 can follow 200 yaw rotation of cabin, so that
Realize the purpose that its leading edge portion 111 is aligned to direction of flow.Specifically, as shown in figure 4, in Fig. 4 unlike Fig. 3,
Also show the connection structure with cabin 200 in fairing 10.Specifically, in fairing 10, around main part 11
The outer peripheral edge at top is extended laterally has cricoid flanged joint side 115, correspondingly, be provided with the bottom of cabin 200
With the corresponding threaded hole (not shown) of flange hole on the flanged joint side 115, thus, you can will be main using fastener
Body portion 11 is fixedly connected on cabin 200.
When cabin 200 performs yaw maneuver, main part 11 then can follow cabin 200 to rotate synchronously, and realization makes leading edge
Part 111 is all the time towards the purpose of direction of flow.That is, the main part 11 for being connected to 20 periphery of tower body being capable of basis
Direction of flow (i.e. wind direction) in wind power generating set local environment adjusts in real time, so that incoming of its string of a musical instrument parallel to air-flow
Direction, so as to guide air-flow smoothly to flow through 100 periphery of tower, avoids tower 100 that vortex-induced vibration occurs.And the utility model
Embodiment passes through simple structure, you can realizes the function of the alignment wind direction of fairing 10, and then realizes to flowing through tower 100
Air-flow effective guiding function, improve the economy of wind power generating set, and simplify the assembling stream of wind power generating set 1
Journey.
In addition, the connection mode between fairing 10 and cabin 200 is not limited to this, it is in other examples, whole
11 top edge of main part of stream device 10 can also be connected to cabin 200 by structures such as glue, hinges, can equally realize
Main part 11 follows the purpose that cabin 200 rotates synchronously.
Fig. 5 is the part-structure schematic diagram according to the tower 101 of the utility model another embodiment.As shown in figure 5, it is
Readily appreciate, in the tower 101 shown in Fig. 5, the component identical with the tower 100 shown in Fig. 2 uses identical label,
And the part for having been described above will not repeat again.Certainly, it is the knot of tower 101 from main view direction in Fig. 5
Structure.As variation, leading edge portion 111 is made towards direction of flow along the realization that circumferentially rotates of tower body 20 by main part 11
Specific implementation can also include, set angle regulating unit 30, main part 11 is connected to angle regulating unit 30, with
Main part 11 is driven to be circumferentially rotated along tower body 20 by angle regulating unit 30.
Exemplarily, including actuator, (certainly, actuator is arranged in control babinet 31 angle regulating unit 30, not
Show) and with actuator be sequentially connected gear 32, actuator can be exemplarily motor and retarder.Pass through actuator
Driving effect so that gear 32 can be along the axial rotation with surface parallel to tower 101.Meanwhile at the bottom of main part 11
Portion is connected with the extension section 116 (being not limited herein for the connection mode of main part 11 and extension section 116) of annular shape, prolongs
The bottom corresponding gear 32 for stretching section 116 is provided with corresponding gear teeth, to engage cooperation with gear 32 by gear teeth.
Thus, when actuator drive gear 32 rotates, gear 32 can with the engaged transmission of extension section 116 so that prolonging
The circumferentially rotating around tower body 20 of section 116 is stretched, while drives the main part 11 being connected with extension section 116 to surround tower body
20 circumferentially rotate.Its angle of rotation relative to tower body 20 is adjusted according to actual wind regime of course for main part 11 is enable
Actuator, so that leading edge portion 111 is directed at direction of flow, can be connected to the controller or outer of angle regulating unit 30 by degree
The controller in portion, to control actuator to drive extension section 116 to drive according to the real time data of wind direction detection device by controller
Main part 11 rotates.Thus, main part 11 can equally realized and is accurately directed at direction of flow, guiding air-flow smooth-going flows through tower
The purpose of 101 peripheries of cylinder.
In addition, pair being not limited to gear with the angle regulating unit 30 that is referred in the present embodiment, its concrete implementation structure
The mode of engagement, it is possible to understand that ground, can also be each other driven by conveyer belt between angle regulating unit 30 and extension section 116 and matched somebody with somebody
Close, the driving effect to extension section 116 is realized by actuator.In addition, in other examples, can not also be individually in master
The bottom in body portion 11 sets extension section 116, for example, corresponding tooth can be set on the bottom end face of the outer ring of rolling bearing 12
The gear teeth, it is at this time, corresponding gear 32 to be arranged on tower body 20 and in installing port 113.Certainly can be with
In the inner wall protrusion of installing port 113, annular support surface is set, and gear teeth is arranged on the annular supporting surface by corresponding gear 32
On.
In addition, the utility model embodiment additionally provides a kind of tower 100, as shown in Fig. 2, tower 100 is filled including rectification
10 and tower body 20 are put, wherein, fairing 10 is installed on outside tower body 20 and positioned at the top of tower body 20.In view of
The matching relationship of corresponding connection relation and each component between fairing 10 and tower body 20 is filled in above-mentioned rectification
Put in 10 embodiment and illustrate, be not repeated here herein.
Other embodiments according to the present utility model, additionally provide a kind of wind power generating set, the wind power generating set
Including above-mentioned tower 100, so wind power generating set has the beneficial effect identical with tower 100, therefore no longer it is subject to herein
Repeat.
The utility model can be realized in other specific forms, without departing from its spirit and essential characteristics.Therefore, currently
Embodiment be all counted as being exemplary rather than in all respects it is limited, the scope of the utility model by appended right will
Ask rather than foregoing description definition, also, fall into claim implication and equivalent in the range of it is whole change so as to all by
It is included among the scope of the utility model.Also, the different technologies feature occurred in different embodiments can be combined,
To obtain beneficial effect.Those skilled in the art will be understood that simultaneously on the basis of studying accompanying drawing, specification and claims
Realize the embodiment of other changes of revealed embodiment.
Claims (13)
- A kind of 1. fairing (10), for wind power generating set (1), it is characterised in that the main body including being in the form of a column extended Portion (11), the main part (11) include：The installing port (113) set along the extending direction perforation of the main part (11), for the wind power generating set (1) Tower (100,101) passes through；WithThe leading edge portion (111) and rear edge part (112) being distributed in succession along the direction vertical with the extending direction, the main body The size in portion (11) is in tapered trend by the leading edge portion (111) to the rear edge part (112), and the main part (11) there is fairshaped profile along the cross section of the extending direction and the cross section is relative to the leading edge portion (111) The string of a musical instrument to the rear edge part (112) is axisymmetric shape, andThe main part (11) can be installed on institute in which circumferentially rotate via the installing port (113) along the tower (100,101) Tower (100,101) is stated, and the direction of flow of the leading edge portion (111) object gas flow can be made.
- 2. fairing (10) according to claim 1, it is characterised in that the fairing (10) further includes connection Portion, the connecting portion are arranged between the main part (11) and the tower (100,101), and the main part (11) can lead to Cross the connecting portion and be rotatably connected at the tower (100,101)；The quantity of the connecting portion is two or more, axial direction of more than two connecting portions along the tower (100,101) Compartment of terrain is arranged.
- 3. fairing (10) according to claim 2, it is characterised in that the connecting portion is sliding bearing and/or rolling Dynamic bearing (12).
- 4. the fairing (10) according to Claims 2 or 3, it is characterised in that the connecting portion further includes magnetic-adsorption Structure (123), the connecting portion can be connected to the outer of the tower (100,101) by the magnetic-adsorption structure (123) Week；Alternatively, the connecting portion can be connected to the periphery of the tower (100,101) by bonded adhesives.
- 5. fairing (10) according to claim 1, it is characterised in that the rear edge part (112) is included along described Extending direction extends and two sides intersecting each other, described two sides by the end of respective remote intersection location with it is described Leading edge portion (111) is in smoothing junction, and it is acute angle that formed angle is intersected in described two sides.
- 6. fairing (10) according to claim 5, it is characterised in that intersect formed angle in described two sides Less than or equal to 45 °.
- 7. fairing (10) according to claim 5, it is characterised in that the leading edge portion (111) is included along described The arc-shaped side of extending direction extension, and the curvature of the arc-shaped side and the curvature of the tower (100,101) are big Cause identical.
- 8. fairing (10) according to claim 1, it is characterised in that the main part (11) is surrounded by plate body, with In the cavity that is internally formed of the main part (11), the fairing (10) further includes bearing rib (13), the supporting rib Plate (13) is arranged in a manner of perpendicular to the string of a musical instrument in the cavity, and surrounds the installing port jointly with the plate body (113)。
- 9. fairing (10) according to claim 1, it is characterised in that the fairing (10) further includes carinate Layer, the carinate layer are covered in the outer surface of the main part (11) and including multiple parallel to each other and along master at least in part The ridge-like structure that the extending direction in body portion (11) extends.
- 10. the fairing (10) according to any one of claims 1 to 3,5 to 9, it is characterised in that the main part (11) can be fixedly connected with the cabin (200) of the wind power generating set (1), so that the main part (11) can follow institute Cabin (200) is stated to circumferentially rotate along the tower (100,101)；Alternatively, the fairing (10) further includes angular adjustment list First (30), the main part (11) are connected with the angle regulating unit (30), to be driven by the angle regulating unit (30) The main part (11) is moved to circumferentially rotate along the tower (100,101).
- A kind of 11. tower (100,101), it is characterised in that including：Tower body (20)；WithSuch as claims 1 to 10 any one of them fairing (10), the fairing (10) passes through the installing port (113) it is installed on the tower body (20) and positioned at the top of the tower body (20).
- 12. tower (100,101) according to claim 11, it is characterised in that the fairing (10) along described The length of tower (100,101) axial direction and the ratio of the length of the tower (100,101) are greater than or equal to 1/3.
- A kind of 13. wind power generating set (1), it is characterised in that including as described in claim 11 or 12 tower (100, 101)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721197336.7U CN207229312U (en) | 2017-09-18 | 2017-09-18 | Fairing, tower and wind power generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721197336.7U CN207229312U (en) | 2017-09-18 | 2017-09-18 | Fairing, tower and wind power generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207229312U true CN207229312U (en) | 2018-04-13 |
Family
ID=61862858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721197336.7U Active CN207229312U (en) | 2017-09-18 | 2017-09-18 | Fairing, tower and wind power generating set |
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| Country | Link |
|---|---|
| CN (1) | CN207229312U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642462A (en) * | 2017-09-18 | 2018-01-30 | 新疆金风科技股份有限公司 | Fairing, tower and wind power generating set |
| CN110345020A (en) * | 2019-07-28 | 2019-10-18 | 米建军 | A kind of tower fairing and application apparatus |
-
2017
- 2017-09-18 CN CN201721197336.7U patent/CN207229312U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642462A (en) * | 2017-09-18 | 2018-01-30 | 新疆金风科技股份有限公司 | Fairing, tower and wind power generating set |
| CN110345020A (en) * | 2019-07-28 | 2019-10-18 | 米建军 | A kind of tower fairing and application apparatus |
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Address after: No.107 Shanghai Road, Urumqi Economic and Technological Development Zone, Urumqi City, Xinjiang Uygur Autonomous Region Patentee after: Jinfeng Technology Co.,Ltd. Address before: No.107 Shanghai Road, Urumqi Economic and Technological Development Zone, Urumqi City, Xinjiang Uygur Autonomous Region Patentee before: XINJIANG GOLDWIND SCIENCE & TECHNOLOGY Co.,Ltd. |
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