CN104295442A - Dual-wind-wheel horizontal-axis wind turbine - Google Patents

Dual-wind-wheel horizontal-axis wind turbine Download PDF

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Publication number
CN104295442A
CN104295442A CN201410543521.1A CN201410543521A CN104295442A CN 104295442 A CN104295442 A CN 104295442A CN 201410543521 A CN201410543521 A CN 201410543521A CN 104295442 A CN104295442 A CN 104295442A
Authority
CN
China
Prior art keywords
wind
wind wheel
wheel
blade
horizontal axis
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.)
Pending
Application number
CN201410543521.1A
Other languages
Chinese (zh)
Inventor
潘盼
蔡新
朱杰
顾荣蓉
舒超
张灵熙
杨杰
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.)
Hohai University HHU
Original Assignee
Hohai University HHU
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 Hohai University HHU filed Critical Hohai University HHU
Priority to CN201410543521.1A priority Critical patent/CN104295442A/en
Publication of CN104295442A publication Critical patent/CN104295442A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D1/00Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/02Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having a plurality of rotors
    • F03D1/025Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having a plurality of rotors coaxially arranged
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D3/00Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06Rotors
    • F03D3/062Rotors characterised by their construction elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D9/00Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20Wind motors characterised by the driven apparatus
    • F03D9/25Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/74Wind turbines with rotation axis perpendicular to the wind direction

Abstract

The invention belongs to the technical field of wind power generation and particularly discloses a dual-wind-wheel horizontal-axis wind turbine. The dual-wind-wheel horizontal-axis wind turbine is characterized in that two wind wheels are staggered at both sides of a rotating shaft and the plane of rotation is parallel to the wind direction. Blades are formed by being improved from traditional flap type blades, the front edge has a high lift characteristic in movement against the wind, and a cavity of the tail edge has a resistance-type blade characteristic in movement with the wind. The direction of the whole wind wheel rotors is regulated by tail vanes to achieve an automatic wind regulation effect. The dual-wind-wheel horizontal-axis wind turbine is simple in structure, low in downwind wind force withstanding and high in wind energy utilization.

Description

A kind of two wind wheel horizontal axis wind-driven generator
?
technical field:
The present invention relates to wind power generation field, disclose a kind of two wind wheel horizontal axis wind-driven generator, be specially and two wind wheel of horizontal axis wind turbine are adjusted to and wind direction parallel position, introduce the novel wind generator of lift-drag complementary blade.
 
background technique:
The spatter property of wind energy, recyclability and large-scale application technology thereof increasingly mature, makes wind-power electricity generation day by day become in new energy field except nuclear power, technology is the most ripe, most exploit condition and the most promising clean electric power generation mode.At present, various countries one after another apparent wind can be developed as one of most important constituent element in new energy strategy.
Modern wind machine is divided into vertical axis windmill and the large class of horizontal-shaft wind turbine two by the topological geometrical relationship on wind wheel rotating shaft and ground.In vertical axis aerogenerator, due to drive manner and structural type diversity, be divided into again resistance type and lift-type two kinds.Based on resistance type and lift-type wind energy conversion system feature, many scholars propose two kinds of wheel combination to become lift-drag complementary wind wheel, under static state utilize the good startability of shaft resistance type windmill, but under high tip speed ratio, do not lose the excellent wind energy utilization of lift-type wind energy conversion system.
 
summary of the invention:
In order to overcome above-mentioned defect, the object of this invention is to provide a kind of two wind wheel horizontal axis wind-driven generator, make wind wheel make full use of wind speed profile in the plane parallel with wind direction, what play aerofoil profile rises resistance complementary power, promotes wind energy utilization.
The present invention adopts following technological scheme for achieving the above object:
A kind of two wind wheel horizontal axis wind-driven generator, comprise two lift-drag complementary wind wheels, with two wind wheel rotating shafts connected horizontally, rotating shaft is connected with rotating wheel hub, it is characterized in that, wind wheel plane of rotation is parallel with wind direction.
Further, under wheel hub, wind direction rigidly fixes tuning tail tag, and in tail tag, connecting rod length L is greater than wind wheel turning radius r, namely; Tail tag is made up of carbon fiber composite.The vertical adjustable rotating wind wheel windward side of tail tag (6), makes wind wheel plane of rotation parallel with incoming flow wind direction all the time.
Described wheel hub is arranged on tower cylinder top, and install transmission device in tower cylinder, wind wheel torque reaches in the generator in base by transmission device.
Wind wheel blade, cuts second aerofoil of aerofoil profile for prototype with aviation aerofoil profile RAF89, forms the thin-wall case structure do not closed; Blade chord length reduces from root gradually to blade tip.Referring to the portion of material of blade airfoil thicker part to excavate to second aerofoil cutting of aerofoil profile makes blade integral be shown as bending structure, namely forms groove.Blade maintains good aerofoil profile aerodynamic characteristics while having resistance type Blade Properties.
Further, every wind wheel is made up of 3 blades; Outward-dipping 10 ~ 15 ° of blade (referring to the angle that blade and wind wheel plane of rotation are formed), the 60 ° of degree (referring to the angle of the blade mutual dislocation of two wind wheels) that misplace are distributed in rotating shaft both sides, are rigidly connected with rotating shaft.
Rotating shaft is through can in the wheel hub of flexible rotating, and built-in hub tuning gear, by rotating shaft vertical in rotating shaft transmission of torque to tower cylinder; Wheel hub is rotated by bearing at tower cylinder top.Wind wheel blade is made up of hard stainless steel, and fan blade shell wall is thick is 3-4mm, and blade tip is not closed.Generator is imbedded in base, accepts vertical rotating shaft transmitting torque in tower cylinder.Wheel hub is made up of stainless steel, and the closely sealed gear train of energy, plays the dust-proof effect of being stopped by rain.
Connecting that two wind wheel horizontal rotating shafts are nested into can the wheel hub of flexible rotating.Wind wheel torque is passed to the vertical rotating shaft in tower cylinder by rotating shaft by gear train, then is passed in the generator that is imbedded in base.
The invention has the beneficial effects as follows:
When Leaf of the present invention runs with the wind, vane groove, under Wind power propelling, drives wind wheel to rotate.With it simultaneously, when blade runs against the wind, the aerofoil profile feature of blade produces enough lift and continues to increase rotor torque, greatly promotes wind wheel wind energy utilization.The hub design of rotating shaft effectively can reduce wind wheel abrasion, promotes the working life of complete machine.
 
accompanying drawing illustrates:
Fig. 1 is a kind of two wind wheel horizontal axis wind-driven generator side view;
Fig. 2 is a kind of two wind wheel horizontal axis wind-driven generator front elevation;
Wind direction schematic diagram when Fig. 3 is a kind of two wind wheel horizontal axis wind-driven generator work;
Fig. 4 is the blade design sketch of a kind of pair of wind wheel horizontal axis wind-driven generator;
Fig. 5 is the lift coefficient comparison diagram that a kind of pair of wind wheel horizontal axis wind-driven generator selects aerofoil profile and original aerofoil profile;
Fig. 6 is the horizontal rotating shaft of a kind of two wind wheel horizontal axis wind-driven generators and vertical rotating shaft transmission schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.
Select traditional aviation aerofoil profile RAF 89, at maximum ga(u)ge place, to the cutting of second aerofoil of aerofoil profile, form the shell construction do not closed, see Fig. 5 with its lift coefficient under incoming flow wind speed at the identical angle of attack compared with RAF 89 aerofoil profile.To revise rear aerofoil profile for prototype pneumatic equipment blades made 1, blade profile chord length is successively decreased by root, and root of blade profile thickness amplifies simultaneously, sees Fig. 4.Blade 1 is made up of high intensity carbon fiber material.
Be one group with three blades 1, blade and plane of rotation formed 10 ° ~ 15 ° angles, to reduce blade tip wake effect, see shown in Fig. 1, Fig. 2.Two wind wheels interlock 60 ° and are arranged in horizontal rotating shaft 2 two ends and fix.
Horizontal rotating shaft 2 is nested in wheel hub 5.Horizontal rotating shaft 2 torque is passed to by steering gear group in the vertical rotating shaft in sleeve 3, and as shown in Figure 6, wheel hub 5 is made up of stainless steel material, can play the dust-proof effect of being stopped by rain.
Wheel hub 5 can drive horizontal rotating shaft 2 flexible rotating at tower cylinder 3 top.Its rotation angle is adjusted according to wind direction automatically by tail tag 6, sees Fig. 3.
Generator is embedded in base 4, and generator amature is connected with rotating shaft in tower cylinder 3, effectively wind wheel torque can be converted into electric energy.
More than show and describe basic principle of the present invention, major character and advantage.The technician of the industry should understand, and above-described embodiment does not limit the present invention in any form, the technological scheme that the mode that all employings are equal to replacement or equivalent transformation obtains, and all drops in protection scope of the present invention.

Claims (9)

1. a two wind wheel horizontal axis wind-driven generator, comprise two lift-drag complementary wind wheels, with two wind wheel rotating shafts connected horizontally (2), rotating shaft is connected with rotating wheel hub (5), it is characterized in that, wind wheel plane of rotation is parallel with wind direction.
2. the two wind wheel horizontal axis wind-driven generator of the one according to claims 1, it is characterized in that: under wheel hub (5), wind direction rigidly fixes tuning tail tag (6), in tail tag (6), connecting rod length L is greater than wind wheel turning radius r, namely; Tail tag is made up of carbon fiber composite.
3. the two wind wheel horizontal axis wind-driven generator of one according to claim 1, it is characterized in that, described wheel hub is arranged on tower cylinder (3) top, and install transmission device in tower cylinder (3), wind wheel torque reaches in the generator in base (4) by transmission device.
4. the two wind wheel horizontal axis wind-driven generator of the one according to claims 1 or 2 or 3, it is characterized in that: wind wheel blade (1) with aviation aerofoil profile RAF89 for prototype, second aerofoil of aerofoil profile is cut, forms the thin-wall case structure do not closed; Blade (1) chord length reduces from root gradually to blade tip.
5. the two wind wheel horizontal axis wind-driven generator of one according to claim 3, is characterized in that, refers to the portion of material of blade airfoil to excavate to make blade integral be shown as bending structure to second aerofoil cutting of aerofoil profile.
6. the two wind wheel horizontal axis wind-driven generator of the one according to claims 1, is characterized in that: every wind wheel has 3 blade (1) compositions; The angle that blade (1) and wind wheel plane of rotation are formed is 10 ~ 15 °, and two wind wheels, the 60 ° of degree that misplace are distributed in rotating shaft (2) both sides, are rigidly connected with rotating shaft (2).
7. the two wind wheel horizontal axis wind-driven generator of the one according to claims 1, it is characterized in that: rotating shaft (2) is through in wheel hub (5), the built-in tuning gear of wheel hub (5), by rotating shaft vertical in rotating shaft transmission of torque to tower cylinder (3); Wheel hub (5) is rotated by bearing at tower cylinder (3) top.
8. the two wind wheel horizontal axis wind-driven generator of the one according to claims 1-7 any one, it is characterized in that: wind wheel blade (1) is made up of hard stainless steel, shell wall is thick is 3-4mm, and blade tip is not closed.
9. the two wind wheel horizontal axis wind-driven generator of the one according to claims 1, is characterized in that: generator is imbedded in base (4), accepts vertical rotating shaft transmitting torque in tower cylinder (3).
CN201410543521.1A 2014-10-14 2014-10-14 Dual-wind-wheel horizontal-axis wind turbine Pending CN104295442A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410543521.1A CN104295442A (en) 2014-10-14 2014-10-14 Dual-wind-wheel horizontal-axis wind turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410543521.1A CN104295442A (en) 2014-10-14 2014-10-14 Dual-wind-wheel horizontal-axis wind turbine

Publications (1)

Publication Number Publication Date
CN104295442A true CN104295442A (en) 2015-01-21

Family

ID=52315330

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN104295442A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018149369A1 (en) * 2017-02-15 2018-08-23 黄垿淘 Wind generating set
CN112283016A (en) * 2020-09-16 2021-01-29 江西大唐国际新能源有限公司 Wind power generation device
CN113482858A (en) * 2021-08-17 2021-10-08 白建东 Horizontal-shaft double-roller self-speed-regulation self-wind-seeking wind power generation device and method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101793234A (en) * 2010-04-01 2010-08-04 赵欣 Vertical axis three-vane wind generator
CN201582047U (en) * 2009-12-02 2010-09-15 昆明理工峰潮科技有限公司 Wind generator blade with multiple C-shaped structure
KR20120057788A (en) * 2010-11-29 2012-06-07 우정택 Rotation apparatus having inclined plural rotation axes
WO2012172443A1 (en) * 2011-06-15 2012-12-20 Bosello Marco Wind plant with horizontal or vertical main axis
CN103306905A (en) * 2012-03-06 2013-09-18 阿基托施·穆拉塔 Wind turbine system constructive arrangement

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201582047U (en) * 2009-12-02 2010-09-15 昆明理工峰潮科技有限公司 Wind generator blade with multiple C-shaped structure
CN101793234A (en) * 2010-04-01 2010-08-04 赵欣 Vertical axis three-vane wind generator
KR20120057788A (en) * 2010-11-29 2012-06-07 우정택 Rotation apparatus having inclined plural rotation axes
WO2012172443A1 (en) * 2011-06-15 2012-12-20 Bosello Marco Wind plant with horizontal or vertical main axis
CN103306905A (en) * 2012-03-06 2013-09-18 阿基托施·穆拉塔 Wind turbine system constructive arrangement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018149369A1 (en) * 2017-02-15 2018-08-23 黄垿淘 Wind generating set
CN112283016A (en) * 2020-09-16 2021-01-29 江西大唐国际新能源有限公司 Wind power generation device
CN112283016B (en) * 2020-09-16 2022-06-24 江西大唐国际新能源有限公司 Wind power generation device
CN113482858A (en) * 2021-08-17 2021-10-08 白建东 Horizontal-shaft double-roller self-speed-regulation self-wind-seeking wind power generation device and method

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C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
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Application publication date: 20150121