CN108561271B - Combined vertical axis wind turbine - Google Patents
Combined vertical axis wind turbine Download PDFInfo
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- CN108561271B CN108561271B CN201810693804.2A CN201810693804A CN108561271B CN 108561271 B CN108561271 B CN 108561271B CN 201810693804 A CN201810693804 A CN 201810693804A CN 108561271 B CN108561271 B CN 108561271B
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- impeller
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- 230000008878 coupling Effects 0.000 claims abstract description 12
- 238000010168 coupling process Methods 0.000 claims abstract description 12
- 238000005859 coupling reaction Methods 0.000 claims abstract description 12
- 238000005192 partition Methods 0.000 claims description 21
- 239000000969 carrier Substances 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims 1
- 230000007423 decrease Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000736911 Turritella communis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
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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
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/06—Rotors
- F03D3/061—Rotors characterised by their aerodynamic shape, e.g. aerofoil profiles
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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
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
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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
- F03D15/00—Transmission of mechanical 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
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/005—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor the axis being vertical
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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
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/02—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor having a plurality of rotors
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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
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/04—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor having stationary wind-guiding means, e.g. with shrouds or channels
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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
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
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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
-
- 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
Abstract
The invention discloses a combined vertical axis wind turbine which comprises a top impeller, a planetary gear box, a tower structure, a tower impeller, a baffle plate, a generator and a foundation. The wind turbine adopts a lift-drag combined impeller. The layered combined tower is adopted, each layer is provided with a baffle plate, the weight of the layer of tower impeller is transmitted to the tower, and the main shaft only transmits torque and is not loaded, so that the large-scale vertical axis wind turbine is facilitated. The tower impeller is arranged in the tower, so that the wind capturing area is fully utilized, and the wind energy utilization rate is improved; the lift type blades ensure high rotation speed efficiency, and the resistance type blades ensure low rotation speed torque; the impellers of all layers are connected by adopting a flexible coupling, so that the influence of non-coaxial shafts is overcome. The lift blades in the top impeller ensure high rotational speed efficiency; the cross section of the top impeller truss is semicircular, and the top impeller truss is used as a support and also plays a role of a resistance type blade. The planetary gear box eliminates the rotation speed difference between the top impeller and the tower impeller, reduces the energy transmission loss and improves the conversion efficiency.
Description
Technical Field
The invention belongs to the field of wind driven generator design, and particularly relates to a combined vertical axis wind driven generator.
Background
The traditional fossil energy is increasingly exhausted after more than hundred years of exploitation, and the development and the utilization of clean and green renewable energy are increasingly paid attention to. Wind energy has become a representative of the new energy field as the most widely used clean energy. In the field of wind power generation, the horizontal-axis wind turbine is most commonly applied, but the horizontal-axis wind turbine has the problems of high gravity center and difficult maintenance. Vertical axis wind turbine is more and more popular among researchers in the field because of the advantages of the generator being located at the bottom of the fan, the gravity center being low, the maintenance being convenient, etc.
The existing vertical axis wind turbine also has some obvious defects. In the case of a resistance type vertical axis wind turbine, the starting torque is high, the starting performance is good at low wind speed, however, the wind energy utilization rate is low at high wind speed because the tip speed ratio is always less than 1; in the case of a lift type vertical axis wind turbine, the tip speed ratio can reach 1 or even higher, however, due to the limitation of blades, the low wind speed torque is small, and the self-starting is difficult. In addition, the vertical axis wind turbine needs to rely on the main shaft to transfer energy downwards, when the capacity of the vertical axis wind turbine is increased, the main shaft is longer, and the strength requirement on the main shaft is correspondingly higher, which is also an important reason for preventing the vertical axis wind turbine from being enlarged.
The document of application No. 201710961029.X provides a multi-wheel wind vane type movable vane vertical axis wind turbine that adopts a tower structure to reduce the main shaft load, but adopts flat plate type resistance type vanes, resulting in low wind energy utilization efficiency. The document of application number 201710702416.1 provides a lift-drag combined type vertical axis wind turbine, wherein an impeller adopts a structure of combining lift-drag type blades with low wind speed starting performance and wind energy utilization rate, but a column type tower barrel is adopted, so that the main shaft load of the wind turbine is higher, and the wind turbine is difficult to be enlarged.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a combined vertical axis wind turbine.
The technical scheme for solving the technical problems is that the invention provides a combined vertical axis wind turbine, which comprises a foundation; the foundation is connected with the ground; the wind turbine is characterized by further comprising a top impeller, a planetary gear box, a tower structure, a tower impeller, a baffle plate and a generator; the generator is arranged on the foundation;
the tower structure consists of a plurality of layers of towers; the tower at the lowest layer is fixed on the foundation; the two adjacent layers of towers are connected through a partition board; each layer of tower is composed of a plurality of guide plates; the guide plates are uniformly arranged on the partition plates, and the upper end and the lower end of the guide plates are respectively connected with the upper partition plate and the lower partition plate;
a tower impeller is arranged in each layer of tower; each tower impeller consists of a plurality of tower impeller lifting blades, a plurality of tower impeller resistance blades, a plurality of tower impeller truss groups and a tower impeller rotating shaft; the tower impeller rotating shafts of the two adjacent tower impellers are connected through a flexible coupling, and the tower impeller rotating shaft of the tower impeller at the lowest layer is connected with the shaft end of the generator through the flexible coupling; the tower impeller truss groups are uniformly arranged on the tower impeller rotating shaft, and each tower impeller truss group comprises two tower impeller trusses which are arranged on the tower impeller rotating shaft in parallel; the two ends of the resistance blade of the tower impeller are arranged on two tower impeller trusses in the tower impeller truss group; the two shaft ends of the rotating shaft of the tower impeller are arranged in the partition board through partition board bearings;
the planetary gear box is fixed on the tower at the uppermost layer; the planetary gear box comprises a planet carrier, a planet wheel, a gear ring and a sun wheel; the gear ring is fixed inside the planetary gear box; the planetary gear is meshed with the gear ring and the sun gear respectively; the planet wheel is arranged on the planet carrier through a bearing; the shaft end of the sun gear is connected with the rotating shaft of the tower impeller at the uppermost layer through a flexible coupling;
the top impeller comprises a plurality of top impeller lifting blades, a plurality of top impeller trusses and a top impeller rotating shaft; the top impeller rotating shafts are fixedly connected with the shaft ends of the planet carriers, the top impeller trusses are uniformly arranged on the top impeller rotating shafts, and each top impeller truss is provided with a top impeller lifting blade.
Compared with the prior art, the invention has the beneficial effects that:
1. the wind turbine adopts a lift-drag combined impeller. The wind turbine is assembled by small-sized parts, has no large-sized parts and is convenient to produce, transport and install. The whole structure adopts a modularized design, the structure and the production process of each part are simple, the shape and system similarity is high, and the comprehensive production cost is low.
2. The layered combined type tower is adopted, each layer is provided with a baffle plate, the weight of the layer of tower impeller is transmitted to the tower, and the main shaft only transmits torque and is not loaded; compared with the traditional tower shell section material, the main shaft load is reduced, and the large-scale vertical shaft wind turbine is facilitated.
3. The tower impeller is arranged in the tower, so that the wind capturing area is fully utilized, and the wind energy utilization rate is improved; the lift-drag combined type blades are adopted, the lift-drag type blades ensure high rotation speed efficiency, the drag type blades ensure low rotation speed torque, the influence of the drag type blades on the rotation speed of the impeller is weakened, and balance is found between the torque and the efficiency; the impellers of all layers are connected by adopting a flexible coupling, so that the influence of non-coaxial shafts is overcome.
4. The lift blades in the top impeller ensure high rotational speed efficiency; the cross section of the top impeller truss is semicircular, and the top impeller truss is used as a support and also plays a role of a resistance type blade.
5. The planetary gear box eliminates the rotation speed difference between the top impeller and the tower impeller, reduces the energy transmission loss and improves the conversion efficiency.
6. The generator is not directly connected with the tower, torque is not transmitted to the tower, and tangential load of the tower is not caused.
7. The guide plate is of an airfoil structure and has a guide function when being used as a support.
Drawings
FIG. 1 is a schematic front view of the overall structure of an embodiment of a modular vertical axis wind turbine of the present invention;
FIG. 2 is a schematic diagram of a top impeller shaft of one embodiment of a modular vertical axis wind turbine of the present invention;
FIG. 3 is a front cross-sectional view of a planetary gearbox of one embodiment of a modular vertical axis wind turbine of the present invention;
FIG. 4 is a schematic diagram of a partial isometric view of a tower of an embodiment of a modular vertical axis wind turbine of the present invention;
FIG. 5 is a schematic diagram of a tower impeller of one embodiment of a modular vertical axis wind turbine of the present invention;
FIG. 6 is a schematic illustration of the connection of the top impeller, planetary gearbox and tower of one embodiment of a combined vertical axis wind turbine of the present invention; ( In the figure: 1. a top impeller; 2. a planetary gear box; 3. a tower; 4. a tower impeller; 5. a partition plate; 6. a generator; 7. a foundation; 8. a deflector; 9. top impeller lift blades; 10. a top impeller truss; 11. a top impeller shaft; 12. a separator bearing; 13. tower impeller lift blades; 14. a tower impeller drag vane; 15. a tower impeller truss; 16. a tower impeller shaft; 17. a planet carrier; 18. a planet wheel; 19. a gear ring; 20. a sun gear; 21. flexible coupling )
Detailed Description
Specific examples of the present invention are given below. The specific examples are provided only for further elaboration of the invention and do not limit the scope of the claims of the present application.
The invention provides a combined vertical axis wind turbine (called wind turbine for short, see figures 1-6), which is characterized by comprising a top impeller 1, a planetary gear box 2, a tower structure, a tower impeller 4, a baffle plate 5, a generator 6 and a foundation 7;
the foundation 7 is connected with the ground through bolts, and the strength of the bolts meets corresponding requirements; the foundation 7 is formed by pouring concrete, so that the engineering stability requirement required by the running of the wind turbine is met; the generator 6 is arranged on a foundation 7;
the tower structure refers to a supporting structure part of the whole wind turbine; the tower structure consists of a plurality of layers (three layers in the embodiment, the number of layers can be flexibly increased and decreased according to the power requirement of the wind turbine) of towers 3 with consistent heights; the tower 3 at the lowest layer is fixed on the foundation 7 through bolts; the two adjacent layers of towers 3 are connected through a partition board 5; each layer of tower 3 consists of a plurality of (six in this embodiment) airfoil deflectors 8; the guide plates 8 are uniformly arranged on the partition plates 5, and the upper end and the lower end of the guide plates are respectively connected with the partition plates 5 on the upper layer and the lower layer; the trailing edge (smaller end) of the deflector 8 is directed towards the axis of the wind turbine; the wing-shaped guide plate 8 has wind gathering and guide functions and can enhance the torque of the tower impeller 4; the width and thickness of the deflector 8 are determined by the mechanical strength requirement, and the length is determined by the height of the whole wind turbine; the separator 5 has three functions: an upper layer of guide plates 8 and a lower layer of guide plates are connected; the stability of the tower structure is enhanced; the weight of each layer of tower impellers 4 is borne and transferred to a lower layer of guide plates 8, and finally transferred to the ground;
preferably, the diameter of the tower 3 is reduced from bottom to top layer by layer to enhance the stability of the tower structure;
a tower impeller 4 is arranged in each layer of tower 3, and the tower impeller 4 is a structure for capturing wind energy in the tower 3; each tower impeller 4 is composed of a plurality of (three in this embodiment) tower impeller lift blades 13, a plurality of (three in this embodiment) tower impeller drag blades 14, a plurality of (three in this embodiment) tower impeller truss sets and a tower impeller rotating shaft 16; the tower impeller rotating shafts 16 of two adjacent tower impellers 4 are connected through a flexible coupling 21, and the tower impeller rotating shaft 16 of the tower impeller 4 at the lowest layer is connected with the shaft end of the generator 6 through the flexible coupling 21 so as to cope with the non-coaxial phenomenon generated by load deformation of the tower 3; the tower impeller truss groups are uniformly arranged on the tower impeller rotating shaft 16, and each tower impeller truss group comprises two tower impeller trusses 15 which are arranged on the tower impeller rotating shaft 16 in parallel; a tower impeller lift blade 13 is mounted at the end of a tower impeller truss set, and two ends of a tower impeller resistance blade 14 are mounted on two tower impeller trusses 15 in the tower impeller truss set; the two shaft ends of the tower impeller rotating shaft 16 are arranged in the partition plate 5 through the partition plate bearing 12 and are radially restrained by the partition plate 5; the inner ring of the baffle bearing 12 is connected with the tower impeller rotating shaft 16, and the outer ring is connected with the baffle 5; the weight of the tower impeller 4 is transmitted to the partition 5 through the lower partition bearing 12 and then to the tower 3, and finally to the ground;
the planetary gear box 2 plays a role of transferring energy; the planetary gear box 2 is fixed on the tower 3 at the uppermost layer; the planetary gearbox 2 comprises a planet carrier 17, planet gears 18, a gear ring 19 and a sun gear 20; the gear ring 19 is fixed inside the planetary gear box 2; the planet wheels 18 are respectively meshed with a gear ring 19 and a sun wheel 20; the planet wheel 18 is arranged on the planet carrier 17 through a bearing, the inner ring of the bearing is connected with the planet carrier 17, and the outer ring of the bearing is connected with the planet wheel 18; the shaft end of the sun gear 20 is connected with the rotating shaft 16 of the tower impeller at the uppermost layer through a flexible coupling 21;
the top impeller 1 is a structure for capturing wind energy at the top of the wind turbine; the top impeller 1 comprises a plurality of (four in this embodiment) top impeller lift blades 9, a plurality of (four in this embodiment) top impeller trusses 10 and a top impeller rotating shaft 11; the top impeller rotating shafts 11 are fixedly connected with the shaft ends of the planetary carriers 17 through pins, the top impeller trusses 10 are uniformly arranged on the top impeller rotating shafts 11, and each top impeller truss 10 is provided with a top impeller lifting blade 9;
the height and radius of the top impeller 1 are determined by the designed power; the radius of the top impeller 1 is three times that of the tower impeller 4, and the tip speed ratios of the two are the same, so that the rotating speed of the top impeller 1 is one third that of the tower impeller 4, and in order to reduce the loss in the energy transmission process, the planetary gear box 2 with the speed ratio of three is required to increase the rotating speed of the top impeller 1 to transmit the energy to the tower impeller 4 downwards. The rotational speed of the sun gear 20 is three times the rotational speed of the planet carrier 17.
The aerodynamic profile of the top impeller lift blades 9 and the tower impeller lift blades 13 are NACA0012 standard blades; the cross section of the tower impeller resistance blades 14 is semicircular; the cross section of the top impeller truss 10 is semicircular, and simultaneously plays a role of a resistance type blade;
the working principle and working flow of the combined vertical axis wind turbine are as follows:
when the wind speed is lower than the cut-in wind speed of the wind turbine, the wind turbine is in a standby state and does not generate electricity.
When the wind speed is between the cut-in wind speed and the cut-out wind speed of the wind turbine, the wind turbine enters an operation state, the top impeller 1 and the tower impeller 4 cooperatively operate through the planetary gear box 2 to convert wind energy into mechanical energy, the mechanical energy is downwards transmitted to the generator 6 through the tower impeller rotating shaft 16, and the generator 6 converts the mechanical energy into electric energy to be output; meanwhile, in the running state, at low wind speed, the wind turbine mainly generates starting moment by the tower impeller resistance blades 14 to drive the top impeller 1 and the tower impeller 4 to rotate; at high wind speeds, the rotational speed is mainly increased by the top impeller lift blades 9 and the tower impeller lift blades 13, and wind energy capture is increased. The use of the lift-drag combined impeller gives consideration to both low wind speed starting performance and wind energy capturing efficiency at high wind speed.
When the wind speed is higher than the cut-out wind speed of the wind turbine, the wind turbine enters a stop state to stop generating power in order to protect mechanical parts and electrical parts of the wind turbine.
The invention is applicable to the prior art where it is not described.
Claims (7)
1. A combined vertical axis wind turbine comprises a foundation; the foundation is connected with the ground; the wind turbine is characterized by further comprising a top impeller, a planetary gear box, a tower structure, a tower impeller, a baffle plate and a generator; the generator is arranged on the foundation;
the tower structure consists of a plurality of layers of towers; the tower at the lowest layer is fixed on the foundation; the two adjacent layers of towers are connected through a partition board; each layer of tower is composed of a plurality of guide plates; the guide plates are uniformly arranged on the partition plates, and the upper end and the lower end of the guide plates are respectively connected with the upper partition plate and the lower partition plate;
a tower impeller is arranged in each layer of tower; each tower impeller consists of a plurality of tower impeller lifting blades, a plurality of tower impeller resistance blades, a plurality of tower impeller truss groups and a tower impeller rotating shaft; the tower impeller rotating shafts of the two adjacent tower impellers are connected through a flexible coupling, and the tower impeller rotating shaft of the tower impeller at the lowest layer is connected with the shaft end of the generator through the flexible coupling; the tower impeller truss groups are uniformly arranged on the tower impeller rotating shaft, and each tower impeller truss group comprises two tower impeller trusses which are arranged on the tower impeller rotating shaft in parallel; the two ends of the resistance blade of the tower impeller are arranged on two tower impeller trusses in the tower impeller truss group; the two shaft ends of the rotating shaft of the tower impeller are arranged in the partition board through partition board bearings;
the planetary gear box is fixed on the tower at the uppermost layer; the planetary gear box comprises a planet carrier, a planet wheel, a gear ring and a sun wheel; the gear ring is fixed inside the planetary gear box; the planetary gear is meshed with the gear ring and the sun gear respectively; the planet wheel is arranged on the planet carrier through a bearing; the shaft end of the sun gear is connected with the rotating shaft of the tower impeller at the uppermost layer through a flexible coupling;
the top impeller comprises a plurality of top impeller lifting blades, a plurality of top impeller trusses and a top impeller rotating shaft; the top impeller rotating shafts are fixedly connected with the shaft ends of the planetary carriers, the top impeller trusses are uniformly arranged on the top impeller rotating shafts, and each top impeller truss is provided with a top impeller lifting blade; the radius of the top impeller is three times that of the tower impeller, and the tip speed ratio of the top impeller and the tower impeller is the same.
2. The combination vertical axis wind turbine of claim 1 wherein the foundation is formed by concrete casting.
3. The combination vertical axis wind turbine of claim 1, wherein the deflector is an airfoil; the rear edge of the guide plate points to the axis of the wind turbine.
4. The combination vertical axis wind turbine of claim 1 wherein the diameter of the tower decreases from bottom to top.
5. The combination vertical axis wind turbine of claim 1, wherein the top impeller lift blades and the tower impeller lift blades are aerodynamically contoured with NACA0012 standard blades.
6. The combination vertical axis wind turbine of claim 1 wherein the tower impeller drag blades are semi-circular in cross section.
7. The modular vertical axis wind turbine of claim 1 wherein the top impeller truss is semi-circular in cross section and functions as a drag type blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810693804.2A CN108561271B (en) | 2018-06-29 | 2018-06-29 | Combined vertical axis wind turbine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810693804.2A CN108561271B (en) | 2018-06-29 | 2018-06-29 | Combined vertical axis wind turbine |
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| CN108561271A CN108561271A (en) | 2018-09-21 |
| CN108561271B true CN108561271B (en) | 2023-06-09 |
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| CN201810693804.2A Active CN108561271B (en) | 2018-06-29 | 2018-06-29 | Combined vertical axis wind turbine |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10704532B2 (en) * | 2016-04-14 | 2020-07-07 | Ronald GDOVIC | Savonius wind turbines |
| CN210317611U (en) * | 2019-06-12 | 2020-04-14 | 广州雅图新能源科技有限公司 | Concrete water storage tower drum of vertical axis wind turbine |
| CN111692042A (en) * | 2020-05-16 | 2020-09-22 | 朱志刚 | Multi-mode wind power station |
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| CN102536643A (en) * | 2012-01-16 | 2012-07-04 | 哈尔滨工程大学 | Vertical axis wind turbine |
| CN103321859A (en) * | 2013-06-06 | 2013-09-25 | 山东科技大学 | Lifting force and resistance combined vertical axis wind turbine |
| CN104847584A (en) * | 2015-06-04 | 2015-08-19 | 张洪昌 | Automatic variable-pitch vertical axis wind turbine of stacked structure |
| CN107061151A (en) * | 2017-06-15 | 2017-08-18 | 河北工业大学 | Modular frame formula high efficiency vertical axis windmill |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7863765B2 (en) * | 2008-07-07 | 2011-01-04 | Fu-Hung Yang | Vertical shaft type windmill with arcuate hook shaped vane blades |
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2018
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|---|---|---|---|---|
| CN102536643A (en) * | 2012-01-16 | 2012-07-04 | 哈尔滨工程大学 | Vertical axis wind turbine |
| CN103321859A (en) * | 2013-06-06 | 2013-09-25 | 山东科技大学 | Lifting force and resistance combined vertical axis wind turbine |
| CN104847584A (en) * | 2015-06-04 | 2015-08-19 | 张洪昌 | Automatic variable-pitch vertical axis wind turbine of stacked structure |
| CN107061151A (en) * | 2017-06-15 | 2017-08-18 | 河北工业大学 | Modular frame formula high efficiency vertical axis windmill |
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| Title |
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| CN108561271A (en) | 2018-09-21 |
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