CN114576083B - Double wind wheel power generation device - Google Patents

Double wind wheel power generation device Download PDF

Info

Publication number
CN114576083B
CN114576083B CN202210273442.8A CN202210273442A CN114576083B CN 114576083 B CN114576083 B CN 114576083B CN 202210273442 A CN202210273442 A CN 202210273442A CN 114576083 B CN114576083 B CN 114576083B
Authority
CN
China
Prior art keywords
wind wheel
fairing
power generation
double
blade
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202210273442.8A
Other languages
Chinese (zh)
Other versions
CN114576083A (en
Inventor
李新凯
郭小江
唐巍
叶昭良
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huaneng Clean Energy Research Institute
Original Assignee
Huaneng Clean Energy Research Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huaneng Clean Energy Research Institute filed Critical Huaneng Clean Energy Research Institute
Priority to CN202210273442.8A priority Critical patent/CN114576083B/en
Publication of CN114576083A publication Critical patent/CN114576083A/en
Application granted granted Critical
Publication of CN114576083B publication Critical patent/CN114576083B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/02—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having a plurality of rotors
    • F03D1/025—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having a plurality of rotors coaxially arranged
    • 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
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • F03D1/0633—Rotors characterised by their aerodynamic shape of the blades
    • F03D1/0641—Rotors characterised by their aerodynamic shape of the blades of the section profile of the blades, i.e. aerofoil profile
    • 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
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
    • 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
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Landscapes

  • 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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Power Engineering (AREA)
  • Wind Motors (AREA)

Abstract

The invention provides a double wind wheel power generation device, comprising: the wind turbine comprises a mounting table (10), a cabin (20), a front wind wheel (30) and a rear wind wheel (40), wherein the cabin (20) is arranged on the mounting table (10), and power generation equipment is arranged in the mounting table (10) or the cabin (20); the front wind wheel (30) is arranged in the engine room (20) and is in transmission connection with the power generation equipment, the front wind wheel (30) comprises a plurality of front blades (31) and a fairing (32) which are distributed in a circumferential array, and each front blade (31) is connected with the fairing (32); the rear wind wheel (40) is arranged in the engine room (20) and is in transmission connection with the power generation equipment, and the rear wind wheel (40) comprises a pair of rear blades (41) distributed in a circumferential array. According to the double-wind-wheel power generation device, the two wind wheels are arranged, and the fairing is arranged on the front wind wheel, so that the restriction on air flow is realized, the rear wind wheel obtains larger wind energy, and the overall power generation efficiency of the double-wind-wheel power generation device is improved.

Description

Double wind wheel power generation device
Technical Field
The invention relates to the technical field of wind power generation, in particular to a double wind wheel power generation device.
Background
Wind energy is becoming an increasingly interesting new energy source due to its advantages of wide sources, large reserves, no pollution, etc. The special carrier of the electric energy as the energy source has the characteristics of cleanness, high efficiency, environmental friendliness and the like, so that the great significance of developing wind power generation is achieved.
The wind power generation device in the related art generally adopts a wind wheel arranged on a tower column to generate power, and the wind power generation device in the mode has higher cost and is not beneficial to wide-range use. Thus, the total amount of power generation of all wind power generation devices in a certain area is small compared with the number of wind power generation devices.
For this reason, how to increase the average power generation amount of a single wind power generation device in a unit time is a technical problem to be solved in the art.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. To this end, an embodiment of the present invention proposes a double wind wheel power generation device including:
a mounting table;
the cabin is arranged on the installation table, and power generation equipment is arranged in the installation table or the cabin;
the front wind wheel is arranged at the first end of the engine room and is in transmission connection with the power generation equipment, and comprises a plurality of front blades and fairings distributed in a circumferential array, and each front blade is connected with the fairings; and
the rear wind wheel is arranged at the second end of the engine room and is in transmission connection with the power generation equipment, and the rear wind wheel comprises a pair of rear blades distributed in a circumferential array.
According to the double-wind-wheel power generation device, the two wind wheels are arranged, and the fairing is arranged on the front wind wheel, so that the restriction on air flow is realized, the rear wind wheel obtains larger wind energy, and the overall power generation efficiency of the double-wind-wheel power generation device is improved.
Optionally, the fairing is regular polygon or circular, and a center of the fairing is located at a rotation center of the front wind wheel.
Optionally, on the windward side, the projection of the rear wind wheel is located inside the fairing.
Optionally, on the windward side, the tip of the rear blade is inscribed inside the fairing.
Optionally, the front blade includes an inner blade and an outer blade connected to each other, the inner blade being located inside the fairing, the outer blade being located outside the fairing.
Optionally, the cross section of the inner blade is an airfoil, and the cross section of the inner blade remains unchanged along the length direction of the inner blade;
the cross section of the outer blade is an airfoil shape, and the chord length of the outer blade gradually decreases along a direction away from the rotation center.
Optionally, the maximum chord length of the outer blade is greater than the chord length of the inner blade.
Optionally, the power generation device is arranged in the cabin, and the power generation device is a dual-rotor generator;
the front wind wheel is in transmission connection with a first rotor of the double-rotor generator, and the rear wind wheel is in transmission connection with a second rotor of the double-rotor generator.
Optionally, the distance between the front wind wheel and the rear wind wheel is 0.25-0.3 times of the diameter of the front wind wheel.
Optionally, the diameter of the front wind wheel is larger than the diameter of the rear wind wheel.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a perspective view of a double wind turbine generator according to an embodiment of the present invention;
FIG. 2 is a rear view of a double wind turbine generator according to an embodiment of the present invention;
FIG. 3 is a rear view of a double wind turbine generator according to another embodiment of the present invention;
FIG. 4 is a side view of a double wind turbine generator according to an embodiment of the present invention;
fig. 5 is a top view of a double wind turbine generator according to an embodiment of the present invention.
Reference numerals:
10-a mounting table;
20-nacelle;
30-front wind wheel; 31-front blades; 311-inner leaf; 312-outboard blades; 32-cowling;
40-rear wind wheel; 41-trailing blade.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
Referring to fig. 1 to 5, an embodiment of the present invention provides a double wind wheel power generation device, which is characterized by comprising: mount 10, nacelle 20, front rotor 30, and rear rotor 40.
Wherein, the cabin 20 is arranged on the installation table 10, and power generation equipment is arranged in the installation table 10 or the cabin 20; the front wind wheel 30 is arranged at the first end of the engine room 20 and is in transmission connection with power generation equipment, the front wind wheel 30 comprises a plurality of front blades 31 and a fairing 32 which are distributed in a circumferential array, and each front blade 31 is connected with the fairing 32; the rear wind wheel 40 is disposed at a second end of the nacelle 20 and is in driving connection with the power generation device, and the rear wind wheel 40 includes a pair of rear blades 41 distributed in a circumferential array.
By providing the fairing 32, the flow direction of the airflow can be constrained so that the rear wind wheel 40 obtains greater wind energy, thereby improving the overall power generation efficiency of the double wind wheel power generation device.
In some embodiments, the fairing 32 is regular polygon or circular and the center of the fairing 32 is located at the center of rotation of the front wind wheel 30. As shown in fig. 1-2, the fairing 32 is circular, and the fairing 32 is configured to be regular polygon or circular, so that the center of the front wind wheel 30 is always located at the rotation center of the front wind wheel 30, thereby ensuring rotation stability.
The cowling 32 has a certain width in the direction of the air flow, and the width can effectively play a role in rectifying the air flow and guiding the direction of the air flow. The wall thickness of the fairing 32 can be made as thin as possible to reduce weight and wind resistance.
In some embodiments, on the windward side, the projection of the rear wind wheel 40 is located inside the fairing 32. As shown in fig. 2, the view angle of fig. 2 is behind the double wind turbine generator, and it can be seen that the tips of the rear blades 41 are all located inside the fairing 32, so as to obtain larger wind energy by using the rectification effect of the fairing 32.
Referring to FIG. 3, the tip of the rear blade 41 may also slightly leak out of the fairing 32, and since the tip position is less affected by the fairing 32, the diameter of the rear wind wheel 40 may also be set slightly larger than the diameter of the fairing 32.
In some embodiments, on the windward side, the tips of the rear blades 41 are inscribed inside the fairing 32. That is, the diameter of the rear wind wheel 40 is exactly equal to the inner diameter of the fairing 32, so that the fairing 32's fairing action is utilized as much as possible.
In some embodiments, the front blade 31 includes an inner blade 311 and an outer blade 312 that are connected to each other, the inner blade 311 being located inside the fairing 32 and the outer blade 312 being located outside the fairing 32. The inner blades 311 serve to connect and support the cowling 32 in addition to the function of promoting rotation of the front rotor 30 using wind energy, and the chord length of the inner blades 311 may be designed to be as small as possible to reduce wind resistance so that more airflow flows to the rear rotor 40 in the rear direction. The chord length of outboard blades 312 may be designed to be as large as possible to more harness wind energy to facilitate rotation of front rotor 30.
Illustratively, the cross-section of the inboard blade 311 is an airfoil, and the cross-section of the inboard blade 311 remains unchanged along the length of the inboard blade 311; the cross section of the outer blade 312 is an airfoil shape, and the chord length of the outer blade 312 gradually decreases in a direction away from the rotation center.
In some embodiments, the maximum chord length of the outboard blade 312 is greater than the chord length of the inboard blade 311. Since the cross section of the inner blade 311 is maintained constant along the length direction of the inner blade 311, the chord length at each position of the inner blade 311 is also the same.
In some embodiments, the power generation equipment is disposed within the nacelle 20, the power generation equipment being a dual rotor generator; the front wind wheel 30 is in driving connection with the first rotor of the double rotor generator and the rear wind wheel 40 is in driving connection with the second rotor of the double rotor generator.
In some embodiments, the chord length of the trailing blade 41 increases from the root to the tip and then decreases. The structure can ensure the connection reliability of the blades and enable each blade to absorb wind energy to the greatest extent. The rear blade 41 is a conventional blade and can be purchased directly without having to be designed separately.
Wherein, the distance between the front wind wheel 30 and the rear wind wheel 40 is 0.25-0.3 times of the diameter of the front wind wheel 30. In this range, the wind energy conversion capability of the front and rear wind wheels is high, and the front wind wheel 30 and the rear wind wheel 40 are installed without interference, so that the installation is convenient.
In some embodiments, the chord length of the trailing blade 41 increases from the root to the tip by a length of 1/7-1/5 of the total length of the trailing blade 41. Within this range, both the front wind wheel 30 and the rear wind wheel 40 have high working efficiency.
In some embodiments, the diameter of the front wind wheel 30 is greater than the diameter of the rear wind wheel 40. By way of example only, the process may be performed,
the length of the rear vane 41 ranges from 28 to 35m and the length of the front vane 31 ranges from 56 to 65m. The length of the front blade 31 is equal to the length of the outer blade 312 plus the length of the inner blade 311.
By way of example, the diameter of the front wind wheel 30 is D1, the diameter of the rear wind wheel 40 is D2, wherein d2= (1/4-1/3) D1, by providing two wind wheels, the simultaneous power generation can be realized, and by controlling the diameter ratio of the front and rear wind wheels, the rear wind wheel 40 can obtain larger wind energy, thereby absorbing the wind energy more fully, and improving the overall power generation efficiency.
In some embodiments, the mounting station 10 is a concrete tower. The concrete tower may be installed on land to ensure stability of the mounting station 10, and the concrete tower may be internally provided with a reinforcing structure to increase its firmness.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims (7)

1. A double wind wheel power generation device, comprising:
a mounting table (10);
a nacelle (20), wherein the nacelle (20) is arranged on the installation table (10), and power generation equipment is arranged in the installation table (10) or in the nacelle (20);
the front wind wheel (30), the front wind wheel (30) is arranged at the first end of the engine room (20) and is in transmission connection with the power generation equipment, the front wind wheel (30) comprises a plurality of front blades (31) distributed in a circumferential array and a fairing (32), and each front blade (31) is connected with the fairing (32); and
the rear wind wheel (40) is arranged at the second end of the engine room (20) and is in transmission connection with the power generation equipment, and the rear wind wheel (40) comprises a pair of rear blades (41) distributed in a circumferential array;
on the windward side, the tip of the rear blade (41) is inscribed inside the fairing (32), the front blade (31) comprises an inner blade (311) and an outer blade (312) which are connected with each other, the inner blade (311) is positioned inside the fairing (32), and the outer blade (312) is positioned outside the fairing (32);
the cross section of the inner blade (311) is an airfoil shape, and the cross section of the inner blade (311) is kept unchanged along the length direction of the inner blade (311);
the cross section of the outer blade (312) is an airfoil shape, and the chord length of the outer blade (312) gradually decreases in a direction away from the rotation center.
2. Double wind wheel power plant according to claim 1, characterized in that the fairing (32) is regular polygon or circular and the centre of the fairing (32) is located at the centre of rotation of the front wind wheel (30).
3. Double wind turbine generator according to claim 1 or 2, wherein the projection of the rear wind turbine (40) is located inside the fairing (32) on the windward side.
4. Double wind turbine generator according to claim 1, wherein the maximum chord length of the outer blades (312) is larger than the chord length of the inner blades (311).
5. Double wind turbine generator according to claim 1, wherein the power generating equipment is arranged in the nacelle (20), the power generating equipment being a double rotor generator;
the front wind wheel (30) is in transmission connection with a first rotor of the double-rotor generator, and the rear wind wheel (40) is in transmission connection with a second rotor of the double-rotor generator.
6. Double wind wheel power plant according to claim 1, characterized in that the distance between the front wind wheel (30) and the rear wind wheel (40) is 0.25-0.3 times the diameter of the front wind wheel (30).
7. Double wind wheel power plant according to claim 1, wherein the diameter of the front wind wheel (30) is larger than the diameter of the rear wind wheel (40).
CN202210273442.8A 2022-03-18 2022-03-18 Double wind wheel power generation device Active CN114576083B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210273442.8A CN114576083B (en) 2022-03-18 2022-03-18 Double wind wheel power generation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210273442.8A CN114576083B (en) 2022-03-18 2022-03-18 Double wind wheel power generation device

Publications (2)

Publication Number Publication Date
CN114576083A CN114576083A (en) 2022-06-03
CN114576083B true CN114576083B (en) 2023-05-02

Family

ID=81776189

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210273442.8A Active CN114576083B (en) 2022-03-18 2022-03-18 Double wind wheel power generation device

Country Status (1)

Country Link
CN (1) CN114576083B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10042430A1 (en) * 2000-08-30 2002-03-21 Sziede Karl Heinz Combined wind power system has wind wheels operated behind tower with small inner vane at center of rotation for regulating residual turbulence
WO2007057021A1 (en) * 2005-11-21 2007-05-24 L.M. Glasfiber S/A A wind power plant with extra set of blades
WO2008002016A1 (en) * 2006-06-26 2008-01-03 In Ho Won Wide ring windmill
DE102009060895A1 (en) * 2009-01-03 2010-07-08 Georg Smylla Wind turbine with a first rotor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8657572B2 (en) * 2007-03-23 2014-02-25 Flodesign Wind Turbine Corp. Nacelle configurations for a shrouded wind turbine
US20090280008A1 (en) * 2008-01-16 2009-11-12 Brock Gerald E Vorticity reducing cowling for a diffuser augmented wind turbine assembly
US20130287543A1 (en) * 2012-04-25 2013-10-31 Flodesign Wind Turbine Corp. Down wind fluid turbine
US10030628B2 (en) * 2012-05-24 2018-07-24 Thunderbird Power Corp Horizontal axis wind machine with multiple rotors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10042430A1 (en) * 2000-08-30 2002-03-21 Sziede Karl Heinz Combined wind power system has wind wheels operated behind tower with small inner vane at center of rotation for regulating residual turbulence
WO2007057021A1 (en) * 2005-11-21 2007-05-24 L.M. Glasfiber S/A A wind power plant with extra set of blades
WO2008002016A1 (en) * 2006-06-26 2008-01-03 In Ho Won Wide ring windmill
DE102009060895A1 (en) * 2009-01-03 2010-07-08 Georg Smylla Wind turbine with a first rotor

Also Published As

Publication number Publication date
CN114576083A (en) 2022-06-03

Similar Documents

Publication Publication Date Title
US8328516B2 (en) Systems and methods of assembling a rotor blade extension for use in a wind turbine
JP5363731B2 (en) Vertical axis turbine equipment
CN104847579A (en) Adjustable-blade-attack-angle vertical-axis wind turbine with double-layer wind wheels
CN113847207A (en) Double-wind-wheel wind turbine generator set
JP4184847B2 (en) Windmill device and wind power generator using the same
CN201593480U (en) Wind turbine blade
CN114576083B (en) Double wind wheel power generation device
US7854595B2 (en) Wind turbine blade tip shapes
CN201187403Y (en) Self-adapting four-blade wind wheel for wind power generation
CN114576078B (en) Double wind wheel power generation device
CN111412111A (en) V-shaped water tank type diversion double-wheel vertical shaft windmill generator and wind power generation method thereof
CN114738177A (en) Double-wind-wheel power generation equipment
CN114576081B (en) Double wind wheel power generation device
CN114576082B (en) Wind power generation device
BR102013000742A2 (en) WIND TURBINE AND WIND TURBINE ROTOR BLADE
CN110645141A (en) Wind power blade noise reduction trailing edge structure
CN218325085U (en) Wind power generator
CN216008752U (en) Y-shaped tandem type double-wind-wheel power generation device
CN216922344U (en) Blade guiding device for wind driven generator
CN114576087B (en) Front blade, wind wheel assembly and double wind wheel power generation device
CN101319653B (en) Self-adapting wind wheel for wind power generation
CN218376727U (en) Fan blower
CN219344871U (en) Outdoor wind-solar complementary power generation device
CN217354593U (en) Vertical axis double-shaft wind power generation device
CN220909892U (en) Vertical wind motor system and vertical wind power generation system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant