CN2813915Y - Wind wheel for large wind energy power set - Google Patents
Wind wheel for large wind energy power set Download PDFInfo
- Publication number
- CN2813915Y CN2813915Y CNU2005200785268U CN200520078526U CN2813915Y CN 2813915 Y CN2813915 Y CN 2813915Y CN U2005200785268 U CNU2005200785268 U CN U2005200785268U CN 200520078526 U CN200520078526 U CN 200520078526U CN 2813915 Y CN2813915 Y CN 2813915Y
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- Prior art keywords
- wind wheel
- wind
- vertical shaft
- unit
- wheel
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- Expired - Fee Related
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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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
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Abstract
The utility model discloses a wind wheel for a large wind energy power device. The utility model is composed of wind wheels and a vertical shaft, wherein shaft sleeves are sheathed on the vertical shaft, suspension arms which are connected with the shaft sleeves are connected with blades, and the shaft sleeves, the suspension arms and the blades form a unit wind wheel. The unit wind wheel is arranged on the vertical shaft along the height direction of the vertical shaft, and at least two unit wind wheels are arranged on the vertical shaft. The structure of each wind wheel reduces the stress of each blade of the wind wheel and is also easy to adjust the weight distribution of the wind wheels so as to avoid resonance frequency points, and the weight of each wind wheel can be decreased so as to increase the utilization efficiency of wind energy of a blower fan and to reduce cost.
Description
Technical field
The utility model relates to a kind of wind wheel of large-scale wind energy power plant, particularly relates to the wind wheel of large-sized vertical shaft wind driven electric plant.
Technical background
Because the maximization of wind-powered electricity generation machine is the main path that grid type wind-powered electricity generation machine reduces cost of electricity-generating, so the megawatt-level wind machine is present mainstream model.But owing to be subjected to the restriction of tab construction and Manufacturing material weight, the power-carrying of horizontal axis wind-driven generator is 5 megawatts.The wind-powered electricity generation machine that the desire development is more large-scale, people have invested vertical shaft type wind-powered electricity generation machine to sight.Though the capacity of vertical shaft wind-powered electricity generation machine can reach 100 megawatts on the structure, its blade needs cantilever could constitute wind wheel.Therefore when increasing with the blade of vertical-shaft fan, cantilever also will increase, weight also increases thereupon, and this is the principal element that influences large-sized vertical shaft wind-powered electricity generation engine efficiency and enforcement.For this reason, we have done two inventions with solidity, the weight that reduces upright wind wheel that increases the vertical shaft blade, the efficient that improves vertical-shaft fan.
But, also must solve the such key issue of resonance that has when the suffered stress of its large-scale blade is excessive to rotate with large scale structure for large-sized vertical shaft wind-powered electricity generation machine.Because on nearly hundred meters height, the variation of wind energy can reach several times, makes large-scale blade be subjected to very big stress.On the other hand, the vibrations that produce at point of resonance during large-scale blade movement are enough to make blower fan to damage.Long its manufacturing of large-scale blade, installation and transportation are all very difficult, and the cost costliness.
The model utility content
The purpose of this utility model provide a kind of stress little, can on circumference, carry out mass distribution modulation wind wheel to lighter subsection blade again with a kind of large-scale wind energy power plant of avoiding resonant frequency.
The purpose of this utility model can be by realizing by the following technical solutions: a kind of wind wheel of wind driven electric plant, it is made up of wind wheel and vertical shaft, be socketed with axle sleeve on the described vertical shaft, be connected with cantilever on the axle sleeve, be connected with blade on the described cantilever, described axle sleeve, cantilever and blade are formed a unit wind wheel, and described unit wind wheel is contained on the vertical shaft along the short transverse of described vertical shaft, and two-layer unit wind wheel is installed on described vertical shaft at least.
Above-mentioned model utility scheme be blade with the large-sized vertical shaft blower fan along the short transverse segmentation, can solve stress problem that large-scale blade exists like this, can on circumference, carry out the mass distribution modulation to avoid resonant frequency to lighter subsection blade again.It not only can reduce unit wind wheel wind sweeping area along with highly increasing, and the angle that can adjust between the different units wind wheel cantilever is exported along fluctuation, the average moment of raising of circumference with the output that reduces whole wind wheel moment.On the other hand, because several unit wind wheels are along vertically being combined into big wind wheel, original very long large-scale blade is replaced by the short blade of several unit wind wheels, the very big stress that this upper and lower end that has not only solved usually big wind wheel blade existence produces, simultaneously make the stress dispersed distribution because the different units wind wheel can make up with the mode of staggering, the weight distribution that also is easy to modulate wind wheel is avoided the frequency that resonates.
Under the situation that keeps whole wind wheel capturing wind energy, solve the variation of wind energy by the performance that changes different said units wind wheels with height, thereby reduced whole wind sweeping area, reduced the weight of whole big wind wheel, improved the Wind Power Utilization efficient of above-mentioned whole wind wheel.
In addition, by the whole wind wheel that above-mentioned unit wind wheel is formed, its manufacture difficulty and cost greatly reduce, and install and also greatly reduction of cost of transportation.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation.
Fig. 2 is second kind of embodiment's of the utility model a structure wheel schematic representation.
Fig. 3 is the third embodiment's of the utility model a structure wheel schematic representation.
Specific embodiments
Below in conjunction with drawings and Examples the utility model is further described
As can be seen from Figure 1, the wind wheel of a kind of wind driven electric plant described in the utility model, form by unit wind wheel 5a, unit wind wheel 5b and vertical shaft 1, be socketed with axle sleeve 2 on the described vertical shaft 1, be connected with cantilever 3 on the axle sleeve 2, be connected with blade 4 on the described cantilever 3, described axle sleeve 2, cantilever 3 are formed a unit wind wheel 5 with blade 4, and described unit wind wheel 5a and unit wind wheel 5b string are contained on the vertical shaft 1.Described unit wind wheel 5 can be provided with 2 to 50; The unit wind wheel 5 of each layer can be identical, also can be inequality.Unit wind wheel 5 can have 2 to 16 cantilevers 3.Form angle between the cantilever 3 of different units wind wheel 5 of wind wheel can be on the scope of 0 to 165 degree value.The blade 4 of a unit wind wheel 5 can be identical, also can be inequality.
As can be seen from Figure 2, the wind wheel of a kind of wind driven electric plant described in the utility model, above-mentioned wind wheel is made up of the unit wind wheel 5 that 3 strings are contained on the vertical shaft 1, and vertical shaft 1 is stepped, the base diameter maximum, intermediate portion is less, the upper diameter minimum, the size of three unit wind wheels 5 is inequality, their form is close, all be to have four pairs of cantilevers 3 to connect blade 4 respectively, the diameter of unit wind wheel 5 diminishes from the bottom to top successively.Form angle between the cantilever 3 of different units wind wheel 5 of wind wheel can be on the scope of 0 to 165 degree value.The blade 4 of unit wind wheel 5 can be identical, also can be inequality.
As can be seen from Figure 3, the wind wheel of a kind of wind driven electric plant described in the utility model, its above-mentioned wind wheel is contained on the vertical shaft 1 by three form wind wheel 5 strings in unit inequality to be formed, vertical shaft 1 is stepped, the base diameter maximum, intermediate portion is less, the upper diameter minimum, the unit wind wheel of bottom has four pairs of cantilevers 3 to connect 4 blades 4 respectively, two pairs of cantilevers 3 of middle unit wind wheel are to connect two support arms by a principal arm to constitute, and corresponding mutually support arm connects blade 4 respectively, and the unit wind wheel 5 on upper strata has three pairs of cantilevers 3, the diameter that the every pair of cantilever 3 connects 4, three unit wind wheels 5 of two groups of blades respectively diminishes from the bottom to top successively.
Claims (6)
1. the wind wheel of large-scale wind energy power plant, it is made up of wind wheel and vertical shaft, it is characterized in that: be socketed with axle sleeve (2) on the described vertical shaft (1), be connected with cantilever (3) on the axle sleeve (2), be connected with blade (4) on the described cantilever (3), described axle sleeve (2), cantilever (3) are formed a unit wind wheel (5) with blade (4), and described unit wind wheel (5) is contained on the vertical shaft (1) along the short transverse of described vertical shaft (1), and two-layer unit wind wheel (5) is installed on described vertical shaft (1) at least.
2. the wind wheel of a kind of wind driven electric plant according to claim 1, it is characterized in that: described unit wind wheel (5) can be 3 to 50, the unit wind wheel (5) of described each layer can be identical, also can be inequality.
3. the wind wheel of a kind of wind driven electric plant according to claim 1 and 2, it is characterized in that: described each unit wind wheel (5) can have 2 to 16 cantilevers (3).
4. the wind wheel of a kind of wind driven electric plant according to claim 1 and 2, it is characterized in that: the cantilever (3) of described adjacent cells wind wheel (5) is arranged in the mode that staggers mutually, the angle between the cantilever (3) of described different units wind wheel (5) can 0 to 165 the degree scope on value.
5. the wind wheel of a kind of wind driven electric plant according to claim 1 and 2 is characterized in that: the blade (3) of described unit wind wheel (5) can be identical, also can be inequality.
6. the wind wheel of a kind of wind driven electric plant according to claim 1 and 2 is characterized in that: the axle sleeve (2) of described all unit wind wheel (5) can be made of a solid box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200785268U CN2813915Y (en) | 2005-03-28 | 2005-03-28 | Wind wheel for large wind energy power set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200785268U CN2813915Y (en) | 2005-03-28 | 2005-03-28 | Wind wheel for large wind energy power set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2813915Y true CN2813915Y (en) | 2006-09-06 |
Family
ID=36949003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200785268U Expired - Fee Related CN2813915Y (en) | 2005-03-28 | 2005-03-28 | Wind wheel for large wind energy power set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2813915Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213180A (en) * | 2010-04-04 | 2011-10-12 | 李锋 | Vertical shaft fan of wind generating set |
| WO2018049827A1 (en) * | 2016-09-18 | 2018-03-22 | 李亦博 | Wind wheel suspension type vertical axis wind turbine |
-
2005
- 2005-03-28 CN CNU2005200785268U patent/CN2813915Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213180A (en) * | 2010-04-04 | 2011-10-12 | 李锋 | Vertical shaft fan of wind generating set |
| CN102213180B (en) * | 2010-04-04 | 2013-07-10 | 李锋 | Fan of vertical shaft wind generating set |
| WO2018049827A1 (en) * | 2016-09-18 | 2018-03-22 | 李亦博 | Wind wheel suspension type vertical axis wind turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060906 Termination date: 20100328 |