CN202250643U - Novel wind wheel structure of large wind generating set - Google Patents
Novel wind wheel structure of large wind generating set Download PDFInfo
- Publication number
- CN202250643U CN202250643U CN2011204074523U CN201120407452U CN202250643U CN 202250643 U CN202250643 U CN 202250643U CN 2011204074523 U CN2011204074523 U CN 2011204074523U CN 201120407452 U CN201120407452 U CN 201120407452U CN 202250643 U CN202250643 U CN 202250643U
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- Prior art keywords
- blade
- wind wheel
- wind
- hub
- wheel structure
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- 238000009434 installation Methods 0.000 claims abstract description 29
- 239000002131 composite material Substances 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 238000010276 construction Methods 0.000 claims description 9
- 229920013657 polymer matrix composite Polymers 0.000 claims description 6
- 239000011160 polymer matrix composite Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000007704 transition Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model relates to a large-scale wind generating set's wind wheel structure. The utility model discloses a structure includes wheel hub and blade, and wheel hub is the cross form, including the wheel hub body, main shaft installation boss and three blade installation boss. The hub is of a steel structure framework and a composite material skin structure, the hub body, the spindle mounting boss and the three blade mounting bosses can be integrally manufactured and molded, or can be assembled after being manufactured in a split mode, the length of each blade mounting boss reaches 5-20 m, and the manufacturing cost of the whole wind wheel is reduced. The blade is of a thin-shell structure and comprises a windward side, a leeward side and a shear web, the blade structure does not have a transition section airfoil structure, and the whole blade is of a full-airfoil structure. By using the novel wind wheel structure, the size of the blade can be shortened, the swept area of the blade is increased, the whole blade runs in a high-rotation linear speed area, the relative wind speed of the blade is improved, the wind capturing efficiency of the blade is improved, and the output power of the blade with the same length is increased.
Description
Technical field
The utility model relates to the component of wind-driven generator group equipment, and specifically, the utility model is a kind of wind wheel of Large-scale Wind Turbines.
Background technique
Power designs is a wind energy conversion system key for design problem, and watt level is relevant with rotor diameter.The target of in the wind energy conversion system design, pursuing is most economical wind-driven generator.For improving the stability of wind-power electricity generation, improve the Economy of unit, reduce product cost, wind generator set blade has all been complied with the blade maximization from structure, shape and other aspects and light-weighted direction develops.But increase along with rotor diameter; The diameter of wheel hub basically also remains on about 2m; This is restricting the size of root of blade diameter, and the maximization of blade makes wind wheel structure manufacture and design, still all increase difficulty and cost aspect the safeguarding of blade in the transportation.
Wind wheel is one of critical component of wind-driven generator, the design that it is good, and quality and superior performance are the deciding factors that guarantees safe and stable operation reliably.Because hub diameter is little, blade is extremely low near the generating efficiency of leaf root part, even is doing negative work, makes the wind efficient of catching of whole blade reduce.And whole the big part of vane stress concentrate on blade tip, makes that the suffered moment of flexure of leaf root part is bigger, and this just requires root of blade to have enough rigidity, and this requires for the root of blade structure Design is quite high.
The model utility content
The utility model purpose is to have overcome above-mentioned shortcoming of the prior art, and a kind of novel wind wheel structure of Large-scale Wind Turbines is provided.The utility model provides novel wind wheel technological scheme, not only make the blade installation land length of wheel hub reach five meters to 20 meters, and, reduced the cost of whole wind wheel construction because wheel hub is made up of steel structure framework and composite material skin structure.Particularly through using this novel wind wheel structure, blade has not had the changeover portion aerofoil profile minimum to power contribution, and whole blade all is an airfoil structure; And through using this novel wind wheel structure, the size of blade can shorten, and the swept area of blade increases; Whole blade all operates in high roulette speed district; The relative speed of wind of blade improves, and that has improved blade catches wind efficient, and this makes the output power of blade of same length increase.And make blade from manufacture, to be transported to installation all more much easier, reduced the cost of wind wheel manufacturing, transportation and installation.
The utlity model has following formation:
A kind of novel wind wheel structure of Large-scale Wind Turbines comprises wheel hub and blade, and blade pass is crossed connection set and is connected with wheel hub.Wheel hub is the four-way form, comprises hub body, main shaft installation base and three blade installation boss.Wheel hub is made up of steel structure framework and composite material skin structure.
The length of blade installation boss is five meters to 20 meters, and promptly hub diameter reaches tens meters to tens meters.
Hub body, main shaft installation base and three blade installation boss are monolithic construction or split-type structural, promptly can wholely make moulding, also can adopt the branch body structure to be assembled.
Blade is a thin-shell construction, and blade is made up of windward side, lee face and shear web.Blade structure has not had the changeover portion airfoil structure, and whole blade is an all-wing profile structure.
Blade material is polymer matrix composites.The composite material skin structure is the stressed-skin construction of being processed by polymer matrix composites.
The end face of main shaft installation base and three blade installation boss has and supplies to be connected the through hole that blade and main shaft are used; Root of blade has the attachment hole that supplies connection blade installation boss to use.
The major advantage of the utility model is:
The diameter of the utility model wheel hub has reached tens meters to tens meters, because wheel hub is made up of steel structure framework and composite material skin structure, compares with existing steel structure wheel hub and composite material blade structure, has reduced the manufacture cost of whole wind wheel; That has adopted that the blade of all wing model structure not only improves blade catches wind efficient, also makes the output power of blade of same length increase; Under same output power, reduced length of blade, be convenient to produce and transportation and installation.
Description of drawings
Fig. 1 is a kind of concrete wind wheel structure schematic representation of the utility model;
Fig. 2 is the wheel hub structure schematic representation of the utility model;
Fig. 3 is the blade schematic representation of the utility model.
Sequence number explanation among the figure: 1 is hub body, and 2 is blade, and 3 is the main shaft installation base, and 4 is the blade installation boss.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
The utility model provides a kind of novel wind wheel structure, realizing most economical and to maximally utilise wind-resources, makes that the output power of blade of same length is higher.
As shown in Figure 1, the utility model wind wheel structure is made up of wheel hub and blade 2.Wheel hub is made up of steel structure framework and composite material skin structure.This composite material skin structure is the polymer matrix composites stressed-skin constructions.
As shown in Figure 2, wheel hub adopts casting or welding to form, and comprises hub body 1, main shaft installation base 3 and three blade installation boss 4.Hub body 1, main shaft installation base 3 and three blade installation boss 4 can wholely be made moulding, also can adopt the branch body structure to be assembled.The through hole that the connection of supplying is all arranged at each installation base end face.
When wind wheel was installed, the lifting wheel hub was installed earlier, and then lifting blade 2, adopted connection set to connect wheel hub and blade 2.
Above-mentioned is the specific descriptions that the utility model is made, any improvement of the utility model spirit and scope and protection domain that replacement all belongs to the utility model of not breaking away from.The utility model is limited with its claim.
Claims (8)
1. the novel wind wheel structure of a Large-scale Wind Turbines; This wind wheel structure comprises wheel hub and blade; Said blade pass is crossed connection set and is connected with wheel hub, and wheel hub is the four-way form, comprises hub body, main shaft installation base and three blade installation boss; It is characterized in that wheel hub is to adopt steel structure framework and composite material skin structure to form.
2. wind wheel structure according to claim 1 is characterized in that, the length of blade installation boss reaches five meters to 20 meters.
3. wind wheel structure according to claim 1 and 2 is characterized in that, hub body, main shaft installation base and three blade installation boss are monolithic construction or split-type structural.
4. according to claims 1 described wind wheel structure, it is characterized in that: blade is a thin-shell construction, and blade is made up of windward side, lee face and shear web.
5. according to claims 1 described wind wheel structure, it is characterized in that: whole blade is an all-wing profile structure.
6. according to claim 4 or 5 described wind wheel structures, it is characterized in that: blade material is polymer matrix composites.
7. wind wheel structure according to claim 1 is characterized in that, said composite material skin structure is the stressed-skin construction of being processed by polymer matrix composites.
8. wind wheel structure according to claim 1 is characterized in that, the end face of said main shaft installation base and three blade installation boss has and supplies to be connected the through hole that blade and main shaft are used; Root of blade has the attachment hole that supplies connection blade installation boss to use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204074523U CN202250643U (en) | 2011-10-14 | 2011-10-14 | Novel wind wheel structure of large wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204074523U CN202250643U (en) | 2011-10-14 | 2011-10-14 | Novel wind wheel structure of large wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202250643U true CN202250643U (en) | 2012-05-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204074523U Expired - Fee Related CN202250643U (en) | 2011-10-14 | 2011-10-14 | Novel wind wheel structure of large wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202250643U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345569A (en) * | 2011-10-14 | 2012-02-08 | 内蒙古航天亿久科技发展有限责任公司 | Novel wind wheel structure of large wind generating set |
-
2011
- 2011-10-14 CN CN2011204074523U patent/CN202250643U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345569A (en) * | 2011-10-14 | 2012-02-08 | 内蒙古航天亿久科技发展有限责任公司 | Novel wind wheel structure of large wind generating set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20171014 |