CN112983739B - Blade self-adaptive adjustment type wind power generation device and application method thereof - Google Patents
Blade self-adaptive adjustment type wind power generation device and application method thereof Download PDFInfo
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- CN112983739B CN112983739B CN202110192554.6A CN202110192554A CN112983739B CN 112983739 B CN112983739 B CN 112983739B CN 202110192554 A CN202110192554 A CN 202110192554A CN 112983739 B CN112983739 B CN 112983739B
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- cavity
- communicating pipe
- blade
- wind power
- liquid
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- 238000010248 power generation Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 230000009467 reduction Effects 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000008859 change Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F03D7/00—Controlling wind motors
- F03D7/06—Controlling wind motors the wind motors having rotation axis substantially perpendicular to the air flow entering the rotor
-
- 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
- F03D3/062—Rotors characterised by their construction elements
-
- 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
-
- 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 blade self-adaptive adjustment type wind power generation device and a using method thereof, wherein the wind power generation device comprises a base, a generator and a rotating shaft driven by the generator, and further comprises: a communicating pipe; a first cavity; a liquid outlet of the communicating pipe; a cover plate; balancing weight; a movable tube; a second cavity; a liquid; a valve is arranged; a lower valve; a wind power detection mechanism; one end of the flexible blade is fixedly connected to the outer surface of the second cavity, the other end of the flexible blade is fixedly connected to the outer surface of the first cavity, and the flexible blade stretches or bends along with the movement of the second cavity. The invention has the beneficial effects that the first cavity, the second cavity, the movable pipe and the communicating pipe are matched to realize the flow of liquid, so that the pressure intensity in the first cavity and the second cavity is changed to drive the windward side of the flexible blade to change; the liquid level reversibility is realized through the matching of the cover plate, the balancing weight and the rotating shaft, the structure is simple, the maximum utilization of the flexible blade to wind energy can be ensured, and the service life of the flexible blade is prolonged.
Description
Technical Field
The invention relates to the field of wind power generation, in particular to a use method of a blade self-adaptive adjustment type wind power generation device.
Background
In recent decades, conventional mineral energy sources such as coal, petroleum, natural gas and the like have unstable supply, and the use of the conventional mineral energy sources can generate serious environmental pollution, so that the search for clean renewable energy sources is an important subject in the modern world, and wind energy is increasingly valued as renewable and pollution-free natural energy sources. The wind power generation forms a hot tide in the world, and the wind power generation has no fuel consumption problem, does not generate radiation and pollution, and can be used for a long time. The principle of wind power generation is that wind power is utilized to drive windmill blades to rotate, and then the rotating speed is increased through a speed increaser so as to promote a generator to generate electricity. But it has a low energy density (only 1/800 of that of water) and is unstable. Under certain technical conditions, wind energy can be used as an important energy source to be developed and utilized. The existing wind driven generator blade inclination angle is inconvenient to adjust, the smaller wind power can not start the power generation impeller at times, the larger wind power can not make the generator bear impact, and adverse effects are caused on generator equipment.
The Chinese patent publication No. CN106593760A discloses an easily-adjusted wind driven generator with high wind energy utilization rate, which comprises a base, a vertical rod, a generator, a machine shell and fan blades, wherein the left side and the right side of the interior of the machine shell are respectively provided with the generator and a gear box, the output shaft of the gear box is provided with a plurality of fan blades, the left end of a tail rod on the left side of the machine shell is provided with a tail fin, the vertical rod is vertically arranged on the base, the upper end of the vertical rod is rotationally provided with an upper rotating shaft, the middle part of the upper rotating shaft is fixedly provided with a hinged support, the upper end of the hinged support is rotationally connected with the machine shell through a swivel, the front end of the upper rotating shaft is also provided with an upper chain wheel, the lower part of the vertical rod is rotationally provided with a lower rotating shaft, the front end of the lower rotating shaft is provided with a lower chain wheel, and the lower chain wheel is connected with the upper chain wheel through a chain. The generator mainly adjusts a shell and a tail wing, has a complex structure and high production cost, and as disclosed in Chinese patent publication No. CN109915316A, a wind power generation device with an automatic adjusting function can enable the lifting wing to rise by airflow flowing through the lifting wing so as to deform a multistage parallel four-bar mechanism, further enable the diameter of a power generation blade to be reduced, and reduce the moment born by the generator. Conversely, when the airflow speed is reduced, the lifting wing descends, and the upper ring body and the sleeve descend under the action of gravity, so that the diameter of the power generation blade is increased, and the moment is improved. The adjusting mechanism depends on mechanical transmission, has a complex structure and low reliability.
Disclosure of Invention
The invention aims to solve the technical problem that the blade of the existing wind driven generator cannot adaptively adjust the windward side according to the wind power or has a complex structure although being capable of adaptively adjusting, and provides a blade self-adaptive adjusting wind driven generator which is ingenious in hydraulic transmission structure and a using method thereof.
The technical scheme of the invention is as follows: blade self-adaptation regulation formula wind power generation device includes base, generator, the pivot and the fan blade of being driven by the generator, still includes: the bottom of the communicating pipe is positioned above the top of the rotating shaft; the first cavity surrounds the communicating pipe and the outer surface of the bottom of the first cavity is fixedly connected with the top of the rotating shaft; the liquid outlet of the communicating pipe is arranged on the side wall close to the bottom of the communicating pipe; the cover plate is adapted between the first cavity and the communicating pipe to isolate the first cavity into an upper part and a lower part; the balancing weight is arranged on the cover plate and is connected with the communicating pipe through the connecting piece; the movable pipe is sleeved with the part of the communicating pipe, which is positioned above the first cavity; the second cavity is surrounded outside the movable pipe; the liquid is filled between the movable pipe and the communicating pipe and in the first cavity, so that a certain distance is reserved between the second cavity and the first cavity in a normal state; the upper valve is arranged on the side wall of the upper part of the movable pipe; the lower valve is arranged on the side wall of the lower part of the movable pipe; the wind power detection mechanism is connected with the upper valve and the lower valve through signals to control the opening and closing of the upper valve and the lower valve; one end of the flexible blade is fixedly connected to the outer surface of the second cavity, the other end of the flexible blade is fixedly connected to the outer surface of the first cavity, and the flexible blade stretches or bends along with the movement of the second cavity.
The principle is as follows: the distance between the second cavity and the first cavity is changed by changing the liquid level in the movable pipe and the communicating pipe by utilizing the principle of the communicating vessel, so that the size of the windward side of the blade is changed, the first cavity is isolated into an upper airtight part and a lower airtight part by the cover plate, and the self weight of the balancing weight and the buoyancy of the cover plate are utilized to balance the pressure of the liquid.
In the above scheme, the wind power detection mechanism is a wind vane.
In the scheme, the flexible blade is connected to the outer surfaces of the first cavity and the second cavity through the hooks.
In the scheme, a plurality of balancing weights are uniformly distributed on the radial surface of the communicating pipe.
The improvement of the scheme is that the top of the first cavity is provided with a horizontal connecting piece surrounding the communicating pipe, and the tail end of the horizontal connecting piece is connected with the midpoint of the long side of the flexible blade through an inclined connecting piece.
The application method of the blade self-adaptive adjustment type wind power generation device comprises the following steps: when the device is in an initial state, the upper valve and the lower valve are closed, the liquid pressure in the movable pipe and the communicating pipe keeps a certain vertical distance between the second cavity and the first cavity, the liquid in the communicating pipe enters the first cavity through the liquid outlet of the communicating pipe, and the buoyancy of the liquid in the first cavity to the cover plate and the pressure of the balancing weight to the cover plate are balanced; when wind power detection mechanism detects the play wind, with signal transmission for down the valve, liquid in the movable tube gets into in the second cavity, pressure in the movable tube reduces, movable tube and second cavity downwardly sliding, the blade crooked leads to the windward side increase, the generator drives the pivot and rotates, the pivot drives first cavity and communicating pipe rotation, the balancing weight is driven by centrifugal force and breaks away from the apron, the apron come-up, produce the negative pressure and make the liquid in the second cavity flow back to in the first cavity, the liquid level in the movable tube increases pressure, drive the second cavity and rise, the blade is tensile to lead to windward side reduction, the generator idle speed, the pivot rotational speed reduces, the balancing weight falls to the apron and presses the apron back to normal position, the circulation of a blade adjustment is accomplished so.
The invention has the beneficial effects that the first cavity, the second cavity, the movable pipe and the communicating pipe are matched to realize the flow of liquid, so that the pressure intensity in the first cavity and the second cavity is changed to drive the windward side of the flexible blade to change; the liquid level reversibility is realized through the matching of the cover plate, the balancing weight and the rotating shaft, the structure is simple, the maximum utilization of the flexible blade to wind energy can be ensured, and the service life of the flexible blade is prolonged.
Drawings
FIG. 1 is a schematic view of a blade-adaptive wind power plant of the present invention;
in the figure, 1, a base, 2, a generator, 3, a rotating shaft, 4, a communicating pipe, 5, a first cavity, 6, a communicating pipe liquid outlet, 7, a cover plate, 8, a balancing weight, 9, a movable pipe, 10, a second cavity, 11, an upper valve, 12, a lower valve, 13, a wind force detection mechanism, 14, a flexible blade, 15, a horizontal connecting piece, 16 and an inclined connecting piece.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. Based on the embodiments of the present invention, all other embodiments of the invention are within the scope of the present invention for those of ordinary skill in the art without making any inventive effort.
As shown in fig. 1, the blade self-adaptive adjustment type wind power generation device comprises a base 1, a generator 2 and a rotating shaft 3 driven by the generator, and further comprises: a communicating pipe 4, the bottom of which is positioned above the top of the rotating shaft; the first cavity 5 surrounds the communicating pipe and the outer surface of the bottom of the first cavity is fixedly connected with the top of the rotating shaft; a communicating pipe liquid outlet 6 which is arranged on the side wall close to the bottom of the communicating pipe; the cover plate 7 is adapted between the first cavity and the communicating pipe to isolate the first cavity into an upper part and a lower part; the balancing weight 8 is arranged on the cover plate and is connected with the communicating pipe through a connecting piece; a movable pipe 9 which is sleeved with the part of the communicating pipe above the first cavity; a second cavity 10, which is enclosed outside the movable tube; the liquid is filled between the movable pipe and the communicating pipe and in the first cavity, so that a certain distance is reserved between the second cavity and the first cavity in a normal state; an upper valve 11 which is provided on the side wall of the upper part of the movable pipe; a lower valve 12 which is provided on the side wall of the lower part of the movable pipe; the wind power detection mechanism 13 is connected with the upper valve and the lower valve through signals to control the opening and closing of the upper valve and the lower valve; and one end of the flexible blade 14 is fixedly connected to the outer surface of the second cavity, the other end of the flexible blade is fixedly connected to the outer surface of the first cavity, and the flexible blade stretches or bends along with the movement of the second cavity.
Specifically, the wind power detection mechanism is a wind vane, and the upper valve and the lower valve are used for controlling the liquid level in the second cavity to be in a proper range, so that the second cavity and the movable pipe can move up and down in a vertical height interval. The flexible blade can be deformed to a certain extent, so that the size of the windward side is changed. The flexible blade can be connected to the outer surfaces of the first cavity and the second cavity through the hooks, the outer surfaces of the first cavity and the second cavity are correspondingly provided with the hanging lugs, and the specific positions of the flexible blade on the outer surfaces of the first cavity and the second cavity can be adjusted according to the requirements. The balancing weights are uniformly distributed on the radial surfaces of the communicating pipes, the balancing weights can be solid spheres, and when the rotating shaft rotates, the balancing weights can be suspended above the cover plate due to centrifugal force, so that the stress state of the cover plate is changed.
As a preferred embodiment of the present invention, the top of the first cavity is provided with a horizontal connecting member 15 surrounding the communicating pipe, and the end of the horizontal connecting member is connected with the midpoint of the long side of the flexible blade through an inclined connecting member 16. Specifically, the horizontal connecting piece can be provided with a plurality of, for example four, approximately cross-shaped distribution around the communicating pipe, and correspondingly connected with four flexible blades, and the horizontal connecting piece can be directly exposed on the surface of the first cavity or embedded in the surface of the first cavity, so that the contact between the upper surface of the first cavity and the lower surface of the second cavity is not affected. The function of the horizontal and diagonal connectors is to provide a fulcrum for the flexible blade to bend, with the fulcrum being folded over when the flexible blade is bent.
The application method of the blade self-adaptive adjustment type wind power generation device comprises the following steps: when the device is in an initial state, the upper valve and the lower valve are closed, the liquid pressure in the movable pipe and the communicating pipe keeps a certain vertical distance between the second cavity and the first cavity, the liquid in the communicating pipe enters the first cavity through the liquid outlet of the communicating pipe, and the buoyancy of the liquid in the first cavity to the cover plate and the pressure of the balancing weight to the cover plate are balanced; when wind power detection mechanism detects the play wind, with signal transmission for down the valve, liquid in the movable tube gets into in the second cavity, pressure in the movable tube reduces, movable tube and second cavity downwardly sliding, the blade crooked leads to the windward side increase, the generator drives the pivot and rotates, the pivot drives first cavity and communicating pipe rotation, the balancing weight is driven by centrifugal force and breaks away from the apron, the apron come-up, produce the negative pressure and make the liquid in the second cavity flow back to in the first cavity, the liquid level in the movable tube increases pressure, drive the second cavity and rise, the blade is tensile to lead to windward side reduction, the generator idle speed, the pivot rotational speed reduces, the balancing weight falls to the apron and presses the apron back to normal position, the circulation of a blade adjustment is accomplished so.
Claims (6)
1. Blade self-adaptation regulation formula wind power generation device, including base (1), generator (2) and by generator driven pivot (3), characterized by: further comprises: a communicating pipe (4), the bottom of which is positioned above the top of the rotating shaft; the first cavity (5) is surrounded outside the communicating pipe, and the outer surface of the bottom of the first cavity is fixedly connected with the top of the rotating shaft; a communicating pipe liquid outlet (6) which is arranged on the side wall close to the bottom of the communicating pipe; the cover plate (7) is adapted between the first cavity and the communicating pipe to isolate the first cavity into an upper part and a lower part; the balancing weight (8) is arranged on the cover plate and is connected with the communicating pipe through the connecting piece; a movable pipe (9) which is sleeved with the part of the communicating pipe above the first cavity; a second cavity (10) enclosed outside the movable tube; the liquid is filled between the movable pipe and the communicating pipe and in the first cavity, so that a certain distance is reserved between the second cavity and the first cavity in a normal state; an upper valve (11) which is arranged on the side wall of the upper part of the movable pipe; a lower valve (12) which is arranged on the side wall of the lower part of the movable pipe; the wind power detection mechanism (13) is connected with the upper valve and the lower valve through signals to control the opening and closing of the upper valve and the lower valve; and one end of the flexible blade (14) is fixedly connected to the outer surface of the second cavity, the other end of the flexible blade is fixedly connected to the outer surface of the first cavity, and the flexible blade stretches or bends along with the movement of the second cavity.
2. The blade-adaptive adjustment type wind power generation device as claimed in claim 1, wherein: the wind power detection mechanism is a wind vane.
3. The blade-adaptive adjustment type wind power generation device as claimed in claim 1, wherein: the flexible blade is connected to the outer surfaces of the first cavity and the second cavity through hooks.
4. The blade-adaptive adjustment type wind power generation device as claimed in claim 1, wherein: the balancing weights are uniformly distributed on the radial surface of the communicating pipe.
5. The blade-adaptive adjustment type wind power generation device as claimed in claim 1, wherein: the top of the first cavity is provided with a horizontal connecting piece (15) surrounding the communicating pipe, and the tail end of the horizontal connecting piece is connected with the midpoint of the long side of the flexible blade through an inclined connecting piece (16).
6. A method of using a blade-adaptive wind power plant according to any one of claims 1 to 5, comprising the steps of: when the device is in an initial state, the upper valve and the lower valve are closed, the liquid pressure in the movable pipe and the communicating pipe keeps a certain vertical distance between the second cavity and the first cavity, the liquid in the communicating pipe enters the first cavity through the liquid outlet of the communicating pipe, and the buoyancy of the liquid in the first cavity to the cover plate and the pressure of the balancing weight to the cover plate are balanced; when wind power detection mechanism detects the play wind, with signal transmission for down the valve, liquid in the movable tube gets into in the second cavity, pressure in the movable tube reduces, movable tube and second cavity downwardly sliding, the blade crooked leads to the windward side increase, the generator drives the pivot and rotates, the pivot drives first cavity and communicating pipe rotation, the balancing weight is driven by centrifugal force and breaks away from the apron, the apron come-up, produce the negative pressure and make the liquid in the second cavity flow back to in the first cavity, the liquid level in the movable tube increases pressure, drive the second cavity and rise, the blade is tensile to lead to windward side reduction, the generator idle speed, the pivot rotational speed reduces, the balancing weight falls to the apron and presses the apron back to normal position, the circulation of a blade adjustment is accomplished so.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110192554.6A CN112983739B (en) | 2021-02-20 | 2021-02-20 | Blade self-adaptive adjustment type wind power generation device and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110192554.6A CN112983739B (en) | 2021-02-20 | 2021-02-20 | Blade self-adaptive adjustment type wind power generation device and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112983739A CN112983739A (en) | 2021-06-18 |
| CN112983739B true CN112983739B (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110192554.6A Active CN112983739B (en) | 2021-02-20 | 2021-02-20 | Blade self-adaptive adjustment type wind power generation device and application method thereof |
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| CN (1) | CN112983739B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2507696A1 (en) * | 1981-06-11 | 1982-12-17 | Maillols Michel | Wind turbine with deformable inflated blades - uses plastics envelopes filled with helium as blades of turbine and has inflation pressure control |
| CN101103198A (en) * | 2004-12-23 | 2008-01-09 | 卡特鲁生态发明有限公司 | Omni-directional wind turbine |
| JP2008111341A (en) * | 2006-10-27 | 2008-05-15 | Tadashi Goino | Wind powered generator and wind power generation system |
| CN101918701A (en) * | 2007-11-16 | 2010-12-15 | 自然能技术有限公司 | A power generator |
| CN203161437U (en) * | 2013-03-01 | 2013-08-28 | 内蒙古工业大学 | Vertical shaft wind turbine |
| CN108953057A (en) * | 2018-08-09 | 2018-12-07 | 石山霞 | A kind of vertical axis aerogenerator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011037870A2 (en) * | 2009-09-22 | 2011-03-31 | Roberto Vallejo | Vertical-axis wind turbine |
| US10378509B2 (en) * | 2017-10-06 | 2019-08-13 | Iap, Inc. | Turbine rotor for redirecting fluid flow including sinuously shaped blades and a solid conical center core |
-
2021
- 2021-02-20 CN CN202110192554.6A patent/CN112983739B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2507696A1 (en) * | 1981-06-11 | 1982-12-17 | Maillols Michel | Wind turbine with deformable inflated blades - uses plastics envelopes filled with helium as blades of turbine and has inflation pressure control |
| CN101103198A (en) * | 2004-12-23 | 2008-01-09 | 卡特鲁生态发明有限公司 | Omni-directional wind turbine |
| JP2008111341A (en) * | 2006-10-27 | 2008-05-15 | Tadashi Goino | Wind powered generator and wind power generation system |
| CN101918701A (en) * | 2007-11-16 | 2010-12-15 | 自然能技术有限公司 | A power generator |
| CN203161437U (en) * | 2013-03-01 | 2013-08-28 | 内蒙古工业大学 | Vertical shaft wind turbine |
| CN108953057A (en) * | 2018-08-09 | 2018-12-07 | 石山霞 | A kind of vertical axis aerogenerator |
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| CN112983739A (en) | 2021-06-18 |
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