CN203130361U - Mechanism preventing blade from icing in wind generating set - Google Patents
Mechanism preventing blade from icing in wind generating set Download PDFInfo
- Publication number
- CN203130361U CN203130361U CN201320147347XU CN201320147347U CN203130361U CN 203130361 U CN203130361 U CN 203130361U CN 201320147347X U CN201320147347X U CN 201320147347XU CN 201320147347 U CN201320147347 U CN 201320147347U CN 203130361 U CN203130361 U CN 203130361U
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- Prior art keywords
- blade
- hole
- generating set
- power generating
- wind power
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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
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/40—Ice detection; De-icing means
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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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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The embodiment of the utility model provides a mechanism preventing a blade from icing in a wind generating set, relates to wind power generating and solves the problem of easy icing of the blade in the existing wind generating set. In the embodiment of the utility model, first through holes formed in a rotor shell, facing a wheel hub direction, of the wind generator and second through holes formed in a blade cover plate are communicated by a pipeline, so heat generated by the rotating of a rotor is transmitted into the blade by the pipeline and the heat can heat the blade, thus avoiding the icing problem of the blade caused by the cold environment; and in addition, the mechanism effectively utilizes the heat discharged from the wind generator, thus avoiding heat wasting and improving the use ratio of energy.
Description
Technical field
The utility model relates to wind-power electricity generation, relates in particular to the mechanism that prevents in a kind of wind power generating set that blade from freezing.
Background technique
Wind power generating set comprises blade, wheel hub and wind-driven generator, and the fixed end of blade is fixed on the wheel hub, and wheel hub is fixedlyed connected with wind-driven generator.Wind drives blade rotation, makes wind energy be converted to mechanical energy, by wind-driven generator mechanical energy is converted into electric energy at last, thereby realizes that wind energy arrives the conversion of electric energy, has saved the energy effectively.
Usually the blade in the wind power generating set comprises first portion, second portion and blade cover plate, the blade body that first portion and second portion do not encapsulate by involutory formation fixed end, the blade cover plate is fixedlyed connected with blade body and is used for the sealing and fixing end, thereby constitutes the blade with inner chamber.Wherein, the blade body in the blade is fixedlyed connected by flange with wheel hub.
Direct-drive permanent magnet wind power generator directly is connected with wheel hub, is made up of rotating shaft, rotor, stator and circular housing.Rotating shaft is positioned at centre of rotor, and fixedlys connected with rotor; Rotating shaft is fixedlyed connected by flange with wheel hub, when making blade drive the wheel hub rotation, can drive rotating shaft and rotate, and drives rotor simultaneously and rotates; Stator radially is fixed on the circular housing inwall, and stator is provided with staor winding, radially has some gaps between stator and the rotor.In the course of the work, when rotor rotates, drive the permanent magnet poles that is located in the rotor and rotate, thereby produce rotating magnetic field, produce electromotive force by cutting movement in the staor winding of rotating magnetic field on stator, thereby mechanical energy is converted into electric energy.In this process, rotor rotates and can produce a large amount of heat, usually by towards wheel hub or dorsad on the rotor case of wheel hub direction connecting tube heat is passed in the radiator by pipeline dispels the heat to heat sink location, simultaneously be provided with through hole at stator, be used for the air inflow generator.
Yet at present, for the direct wind-driven generator group that is installed in cold area, because environment cold, cause blade to freeze easily, then the weight of blade increases, and its speed of rotating is with the wind reduced, thereby a series of problem occurs, for example the wind-driven generator power factor descends, the load change is big etc., and these problems will have a strong impact on the performance of wind power generating set and the working life of component thereof.
The model utility content
Embodiment of the present utility model provides the mechanism that prevents in a kind of wind power generating set that blade from freezing, and has solved the problem that blade easily freezes in the existing wind power generating set.
For achieving the above object, embodiment of the present utility model adopts following technological scheme:
Prevent the mechanism that blade freezes in a kind of wind power generating set, the wheel hub that described wind power generating set comprises wind-driven generator, fixedly connected with the rotor of described wind-driven generator and the blade of fixedlying connected with described wheel hub, wherein, the rotor case towards the wheel hub direction of wind-driven generator is provided with first through hole; The blade cover plate of blade is provided with second through hole; Described first through hole is communicated with by pipeline with described second through hole.
Particularly, also be provided with third through-hole on the described blade cover plate, described third through-hole is communicated with the inner chamber of described wheel hub.
In order to prevent that the impurity in the blade from entering in the wheel hub, described third through-hole is equipped with filter screen.
In order to make heat fully mobile in blade, described blade comprises dividing plate, and described dividing plate is fixed in the inner chamber of described blade along the blade bearing of trend; Described dividing plate one end is corresponding with the profound length direction of described root of blade, and contacts with described blade cover plate; Described dividing plate is divided into first space and second space with the inner chamber of described blade; Described first space is communicated with described second through hole; Described second space is communicated with described third through-hole.
The length of the dividing plate that the utility model embodiment provides can have multiple, wherein a kind ofly is: described dividing plate is 1/2 to 2/3 of blade integral length along the length of described blade bearing of trend.
Preferably, the number of described first through hole equates with the number of described blade.
Can having of the position of first through hole that the utility model embodiment provides is multiple, wherein a kind ofly is: the position of described first through hole corresponds respectively to the mounting point of described blade on described wheel hub.
Be specifically as follows, the position of described first through hole is corresponding to stator and gap between rotor.
The kind of the pipeline that the utility model embodiment provides has multiple, wherein a kind ofly is: described pipeline is flexible pipe.
Prevent in the wind power generating set that the utility model embodiment provides in the icing mechanism of blade, because the rotor case towards the wheel hub direction at wind-driven generator is provided with first through hole, the blade cover plate is provided with second through hole, and first through hole and second through hole are communicated with by pipeline, make heat that rotor rotate to produce by pipeline transmission in blade, this heat can heat blade, thereby has avoided blade because the ice formation issues that environment cold causes; In addition, this mechanism has effectively utilized the heat that wind-driven generator emits, and has avoided the waste of heat, has improved rate of energy.
Description of drawings
In order to be illustrated more clearly in the technological scheme among the utility model embodiment, will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below.
The wind-driven generator structure sketch that Fig. 1 provides for the utility model embodiment;
Blade cover plate structure schematic representation in the blade that Fig. 2 provides for the utility model embodiment;
Prevent the structural scheme of mechanism that blade freezes in the wind power generating set that Fig. 3 provides for the utility model embodiment;
The blade structure schematic representation that Fig. 4 provides for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is clearly and completely described.
The utility model embodiment provides the mechanism that prevents in a kind of wind power generating set that blade from freezing, the wheel hub that wind power generating set comprises wind-driven generator, fixedly connected with the rotor of wind-driven generator and the blade of fixedlying connected with wheel hub, as shown in Figure 1 to Figure 3, the rotor case 12 towards the wheel hub direction of wind-driven generator 11 is provided with first through hole 13; The blade cover plate 22 of blade 21 is provided with second through hole 23; Wherein, first through hole 13 is communicated with by pipeline 31 with second through hole 23.
Prevent in the wind power generating set that the utility model embodiment provides in the icing mechanism of blade, because the rotor case towards the wheel hub direction at wind-driven generator is provided with first through hole, the blade cover plate is provided with second through hole, and first through hole and second through hole are communicated with by pipeline, make heat that rotor rotate to produce by pipeline transmission in blade, this heat can heat blade, thereby has avoided blade because the ice formation issues that environment cold causes; In addition, this mechanism has effectively utilized the heat that wind-driven generator emits, and has avoided the waste of heat, has improved rate of energy.
Prevent from the wind power generating set that above-described embodiment is described as shown in Figure 2, can also being provided with third through-hole 24 on the blade cover plate 22 in the icing mechanism of blade, third through-hole 24 is communicated with the inner chamber of wheel hub.Therefore, rotor rotates the heat that produces and enters the inner chamber of blade 21 from first through hole 13, flows out from third through-hole again, and the heat that is beneficial to new generation enters in the blade 21, is convenient to heat flowing in blade 21 simultaneously.
Among Fig. 2, can also be provided with seal ring 25, be used for sealing blade cover plate 22 and blade 21, heat is only flowed by second through hole 23 and third through-hole 24, prevent that heat from leaking outside, to improve the utilization ratio of heat.
Wherein, blade cover plate 22 is used for the inner chamber of sealing blade 21, and it can be structure as a whole, and also can be two chip architectures.Each sheet in two chip architectures corresponds respectively to first portion and the second portion in the blade 21, when the first portion of blade 21 and second portion assembling, can seal gap between 21 two of the blade cover plates by sealer, thereby finish the sealing of blade 21.For the blade cover plate 22 of two chip architectures, its each sheet can be convenient to install along the profound length direction setting of blade 21 roots.
Need to prove that herein blade mostly is airfoil structure, the profound length direction of blade 21 refers on the cross section of blade 21 rectilinear direction from the leading edge of blade 21 to the trailing edge of blade 21, as dotted line vertical among Fig. 2.
Prevent in the wind power generating set that above-described embodiment is described that third through-hole 24 can be equipped with filter screen in the icing mechanism of blade.When this filter screen can prevent that blade 21 from rotating, the impurity in the blade 21 entered in the wheel hub inner chamber, thereby enters in the wind-driven generator again, destroys the magnetic field in the wind-driven generator, and then influenced the performance of wind-driven generator.
Prevent in the wind power generating set that above-described embodiment is described that as shown in Figure 4, blade 21 can comprise dividing plate 41 in the icing mechanism of blade, dividing plate 41 is fixed in the inner chamber of blade 21 along blade 21 bearing of trends, and dividing plate 41 1 ends contact with blade cover plate 22; Dividing plate 41 is divided into first space 42 and second space 43 with the inner chamber of blade 21; Wherein, first space 42 is communicated with second through hole 23; Second space 43 is communicated with third through-hole 24.
Among Fig. 4, heat enters first space 42 by second through hole 23, and flows along blade 21 bearing of trends, shown in dotted arrow among Fig. 4, heat enters second space 43 afterwards, and mobile along the direction opposite with blade 21 bearing of trends, shown in solid arrow among Fig. 4, flow out by third through-hole 24 at last, therefore strengthened the distance that heat flows in blade 21, heat is fully flowed in blade 21, more effectively blade 21 is heated, prevent that blade 21 from freezing.
Wherein, for being carried, wind acts on more equably on the blade 21, blade more than 21 adopts airfoil structure, and blade 21 is made of a plurality of airfoil structures usually, then causes the profound long different of its varying cross-section, but these profound length all influence 21 pairs of utilization ratio of wind energy of blade, in the present embodiment, an end of dividing plate 41 is corresponding with the profound appearance of blade 21 roots, and is fixed in the inner chamber of blade 21 along the bearing of trend of blade 21, be convenient to install, also can avoid the influence of 41 pairs of wind energy utilizations of dividing plate simultaneously.
Prevent in the wind power generating set that above-described embodiment is described that dividing plate 41 is 1/2 to 2/3 of blade 21 entire length along the length of blade 21 bearing of trends in the icing mechanism of blade.The length of dividing plate 41 is specifically decided according to the structure of blade 21, also can be other length scale that heat is fully flowed at blade 21.
Prevent in the wind power generating set that above-described embodiment is described that the number of first through hole 13 can equate with the number of blade in the icing mechanism of blade.The generator that the utility model embodiment provides is provided with 3 first through holes 13, and corresponding wind power generating set comprises 3 blades.Certainly, the number of blade also can be 2 or a plurality of, and the number of corresponding first through hole 13 is corresponding with the number of blade.Wherein, the number of first through hole 13 should not surpass the number of blade, easily causes the waste of heat.
Prevent in the wind power generating set that above-described embodiment is described that the position of first through hole 13 can correspond respectively to the mounting point of blade 21 on wheel hub in the icing mechanism of blade.As shown in Figure 1, use 3 blades to be example with wind power generating set, blade 21 symmetry on wheel hub is installed, angle between adjacent two blades 21 is 120 degree, then first through hole 13 is 3, and the position is corresponding to the mounting point of blade 21 on wheel hub, and making the angle between adjacent two first through holes 13 is 120 degree, is connected by pipeline 31 with blade 21 thereby be convenient to first through hole 13.
Prevent in the wind power generating set that above-described embodiment is described that as shown in Figure 1, the position of first through hole 13 can also be corresponding to stator and gap between rotor in the icing mechanism of blade.Rotor rotates the heat that produces and mainly is present in this gap, and the position of first through hole 13 more directly promptly enters the pipeline heat corresponding to this gap from first passage 13.
Prevent in the wind power generating set that above-described embodiment is described that as shown in Figure 4, pipeline 31 can be flexible pipe in the icing mechanism of blade.Flexible pipe is convenient to be connected and fixed with first through hole and second through hole respectively.Certainly, pipeline 31 also can be the pipeline of other character, for example rigidity.
Prevent in the wind power generating set by the above-described embodiment description of Fig. 3 that below the working process of mechanism that blade freezes is described in detail.
Among Fig. 3, the arrow direction indication is the flow direction of the heat that produces in the wind-driven generator.In the process of wind power generating set work, blade 21 rotating band runner hubs rotate, and rotate thereby drive rotor, produce heat thereby rotor is rotated.This heat is through in first through hole, 13 flow ipes 31, from pipeline 31, flow in first space 42 of blade 21 by second through hole 23 again, heat flows along blade 21 bearing of trends in first space 42, heat enters second space 43 afterwards, and mobile along the direction opposite with blade 21 bearing of trends, flow out by third through-hole 24 at last.In this process, rotor rotates the heat that produces and fully flows in blade 21, effectively blade 21 is heated, and prevents that blade 21 from freezing.
In said process, the rotor of pipeline 31 wind-driven generator 11 in wind power generating set rotates, thus pipeline 31 not can and rotor, wheel hub and blade 21 between produce relative movement, guaranteed the fluency of heat transmission channel.
The above; it only is embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (9)
1. prevent the mechanism that blade freezes in a wind power generating set, the wheel hub that described wind power generating set comprises wind-driven generator, fixedly connected with the rotor of described wind-driven generator and the blade of fixedlying connected with described wheel hub, it is characterized in that the rotor case towards the wheel hub direction of wind-driven generator is provided with first through hole; The blade cover plate of blade is provided with second through hole;
Described first through hole is communicated with by pipeline with described second through hole.
2. prevent the mechanism that blade freezes in the wind power generating set according to claim 1, it is characterized in that also be provided with third through-hole on the described blade cover plate, described third through-hole is communicated with the inner chamber of described wheel hub.
3. prevent the mechanism that blade freezes in the wind power generating set according to claim 2, it is characterized in that described third through-hole is equipped with filter screen.
4. according to the mechanism that prevents in claim 2 or the 3 described wind power generating set that blade from freezing, it is characterized in that described blade comprises dividing plate, described dividing plate is fixed in the inner chamber of described blade along the blade bearing of trend; Described dividing plate one end is corresponding with the profound length direction of described root of blade, and contacts with described blade cover plate; Described dividing plate is divided into first space and second space with the inner chamber of described blade;
Described first space is communicated with described second through hole; Described second space is communicated with described third through-hole.
5. prevent the mechanism that blade freezes in the wind power generating set according to claim 4, it is characterized in that described dividing plate is 1/2 to 2/3 of blade integral length along the length of described blade bearing of trend.
6. prevent the mechanism that blade freezes in the wind power generating set according to claim 1, it is characterized in that the number of described first through hole equates with the number of described blade.
7. prevent the mechanism that blade freezes in the wind power generating set according to claim 6, it is characterized in that the position of described first through hole corresponds respectively to the mounting point of described blade on described wheel hub.
8. according to the mechanism that prevents in claim 1 or the 6 or 7 described wind power generating set that blade from freezing, it is characterized in that the position of described first through hole is corresponding to stator and gap between rotor.
9. prevent the mechanism that blade freezes in the wind power generating set according to claim 1, it is characterized in that described pipeline is flexible pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320147347XU CN203130361U (en) | 2013-03-27 | 2013-03-27 | Mechanism preventing blade from icing in wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320147347XU CN203130361U (en) | 2013-03-27 | 2013-03-27 | Mechanism preventing blade from icing in wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203130361U true CN203130361U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320147347XU Expired - Lifetime CN203130361U (en) | 2013-03-27 | 2013-03-27 | Mechanism preventing blade from icing in wind generating set |
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| CN (1) | CN203130361U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829888A (en) * | 2017-11-20 | 2018-03-23 | 浙江运达风电股份有限公司 | A kind of the wind power generating set blade de-icing method and system of the heating of partition type hot-air blower |
| CN108700042A (en) * | 2016-03-01 | 2018-10-23 | 9719245加拿大公司 | wind turbine blade deicing system and method |
| CN114599584A (en) * | 2019-11-12 | 2022-06-07 | 株式会社斯巴鲁 | Propulsion device, anti-icing method for rotor wing and aircraft |
-
2013
- 2013-03-27 CN CN201320147347XU patent/CN203130361U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108700042A (en) * | 2016-03-01 | 2018-10-23 | 9719245加拿大公司 | wind turbine blade deicing system and method |
| US10823152B2 (en) | 2016-03-01 | 2020-11-03 | Borealis Wind Inc. | Wind turbine blade de-icing systems and methods |
| CN107829888A (en) * | 2017-11-20 | 2018-03-23 | 浙江运达风电股份有限公司 | A kind of the wind power generating set blade de-icing method and system of the heating of partition type hot-air blower |
| CN107829888B (en) * | 2017-11-20 | 2023-10-03 | 浙江运达风电股份有限公司 | Partition type hot air blower heating wind generating set blade deicing method and system |
| CN114599584A (en) * | 2019-11-12 | 2022-06-07 | 株式会社斯巴鲁 | Propulsion device, anti-icing method for rotor wing and aircraft |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |