CN103615355A - Perpendicular shaft offset distance type wind machine with wind collection covers - Google Patents

Perpendicular shaft offset distance type wind machine with wind collection covers Download PDF

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Publication number
CN103615355A
CN103615355A CN201310677733.4A CN201310677733A CN103615355A CN 103615355 A CN103615355 A CN 103615355A CN 201310677733 A CN201310677733 A CN 201310677733A CN 103615355 A CN103615355 A CN 103615355A
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CN
China
Prior art keywords
wind
blade
window frame
lightweight
sharf
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Pending
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CN201310677733.4A
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Chinese (zh)
Inventor
雷绍兰
古亮
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Chongqing University of Technology
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Chongqing University of Technology
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Application filed by Chongqing University of Technology filed Critical Chongqing University of Technology
Priority to CN201310677733.4A priority Critical patent/CN103615355A/en
Publication of CN103615355A publication Critical patent/CN103615355A/en
Pending legal-status Critical Current

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    • 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 discloses a perpendicular shaft offset distance type wind machine with wind collection covers. The perpendicular shaft offset distance type wind machine comprises a main shaft, beams, the wind collection covers, blade shafts and lightweight blades. The beams are fixed to the upper end of the main shaft. A window frame is vertically and fixedly installed on the lower side, close to the outer end, of each beam. The rotatable blade shafts are vertically and evenly arranged on each window frame. The lightweight blades are fixed to the blade shafts respectively. The top and the bottom of each window frame are respectively and horizontally provided with one wind collection cover. One end of each torsion spring is fixed to the corresponding blade shaft. The other end of each torsion spring is fixed to the corresponding beam. Due to the adoption of the torsion springs, the lightweight blades are located inside the vertical plane composed of the main shaft and the beams when no wind exits, and are always ready for catching wind, the wind catching face is larger, and response of the wind machine is fast; Due to the fact that the wind machine is provided with the wind collection covers, when the lightweight blades follows wind, the pressure difference of air flow between the windward face and the backwind face of the upper edge and the lower edge of each lightweight blade is increased, and the wind machine is large in moment of force, low in start-up wind speed, large in wind energy utilization rate, strong in breeze power generation capacity and high in practicability.

Description

Vertical shaft offset distance formula wind energy conversion system with Ji Fenggai
Technical field
The present invention relates to a kind of offset distance formula vertical axis windmill, relate in particular to a kind of vertical shaft offset distance formula wind energy conversion system with Ji Fenggai.
Background technique
Nowadays, the non-renewable energy resources such as oil, coal, rock gas are all faced with reserves exhaustion, rise in price, the severe contamination etc. of earth environment even.Nuclear fission generating is dangerous high, nuclear waste befouling environment, difficult treatment; Utilize nuclear fusion energy generating also infeasible.And solar energy and wind energy are renewable energy sourcess, environment is not polluted.Therefore, each national capital Devoting Major Efforts To Developing be take the clean reproducible energy that wind energy and solar energy are representative.
In current field of wind energy utilization, the wind-driven generator of existing most of large electric motor powers mostly in treating, outage state, blower fan utilization ratio is extremely low.Under some specific condition, even in order to make blower fan standby at any time generating, also must be to blower fan input control power supply, this makes blower fan occur negative power output state, has greatly reduced wind energy utilization.Being subject to the impact of wind turbines rotor structure, mainly there is following problem in existing wind-driven generator: 1. start wind speed and rated wind speed all too high, situation seriously loses contact with reality.Need development be applicable to the wind energy conversion systems that most of areas are used, its startup wind speed and rated wind speed are all very low.2. the blade of existing wind wheel is carefully grown, and solidity is low, and major part leaks from the space between blade, and wind energy is not fully utilized.3. fan blade Airfoil Design is unreasonable.Current the most widely used wind wheel blade is to design according to the rotor structure of helicopter.The structural design of the rotor of helicopter is in order to utilize air-flow to improve its lift, but wind wheel blade need to overcome the effect of this power, is contrary process.4. most wind wheel blade torsion angles are fixed, and can not adapt to different wind speed.But in actual applications, wind speed size is random.Therefore wind wheel is generally operational in non-design work state, and resistance is large against the wind, and overall efficiency is low, difficulty in starting.
Existing offset distance formula blade vertical shaft wind-driven generator, blade profile is long-pending to be increased, and has improved the wind energy power of catching, and reduces and starts wind speed.Adjust blade lean angle and can regulate blower fan rotational speed.The long-pending increase of blade profile can significantly reduce the length of blade, so that wind wheel blade gross weight significantly reduces, and can utilize substantially wind energy power.Floor space is few, and omnirange acting starts fast.
Existing offset distance formula blade vertical shaft wind-driven generator has three kinds of schemes.1. blade rack is installed on vertical shaft, and blade is arranged on blade rack two ends with offset distance form, and blade is by Electric Machine Control.In the time of with the wind, control and make the vertical wind-engaging of blade, wind energy is converted into the rotating mechanical energy of impeller.And when contrary wind, control and make blade be horizontal position, wind is not produced to any resistance.2. blade rack is installed on vertical shaft, and blade is arranged on blade rack two ends with offset distance form.90 degree one direction limit stoper are installed, so that blade one direction offset distance is no more than 90 degree on blade rack.When any direction be the wind comes from, on one side blade because one direction position-limiting action keeps original position, another side blade is identical with wind direction to be rotated.3. blade rack is installed on vertical shaft, and blade is installed blade at blade rack two ends with 90 degree angles with offset distance form.The limit stoper that full swing angle is 45 degree is installed on blade rack.Any direction be the wind comes from and made the blade oscillating of blade rack one end to horizontal position; The blade of the blade rack the other end is at wind-force effect lower swing to vertical position, and wind acts on the blade of vertical position and makes the rotation of blade impeller; When the blade oscillating of vertical position arrives downwind position, a blade of another blade rack to vertical position, continues impeller rotation at wind-force effect lower swing.But the leaf position adjustment in the first scheme needs motor to drive rotation, need to expend electric power, but also increase the complexity of control system; Blade in first scheme when rotating speed due to centrifugal and can not reliable reset.Below finally plant scheme, although solidity is more many greatly than conventional wind wheel, catch wind very capable, due to blade deadweight, make blade to vertical variation, need certain blast by level, so particularly in the situation that wind speed is very low, start more difficult.Patent 201220602985.1(is with the vertical shaft offset distance formula wind energy conversion system of blade weight counterbalance) increased blade weight counterbalance make to start wind speed can be very low, improved generating efficiency.But above various schemes, at blade when changing against the wind with the wind state into, blade have one by level to vertical sudden transition, can bring larger impact.
The soft wing formula of the triangle vertical shaft offset distance wind energy conversion system that patent 201310043115.4(exerts oneself against the wind), 201310043153, the trapezoidal soft wing louvre type vertical shaft offset distance wind energy conversion system of X() etc., blade and the suitable mounting type of designing special shape, alleviated impact; But complicated structure, maintenance is inconvenient.
Therefore, be necessary that development and Design goes out the simpler soft wing wind energy conversion system of structure.
Summary of the invention
High in order to overcome the startup wind speed of existing blower fan, rotor solidity is low, power coefficient is little, wind wheel fan blade aerofoil profile and torsion angle are fixing and can not adapt to different wind speed, drive rotation need to expend electric power, leaf position adjustment need to expend the rotation of electric drive motor, and the shortcomings such as system architecture complexity, the invention provides a kind of vertical shaft offset distance formula wind energy conversion system with Ji Fenggai that blower fan is exerted oneself that improves.
In order to solve the problems of the technologies described above, the present invention has adopted following technological scheme:
Vertical shaft offset distance formula wind energy conversion system with Ji Fenggai, comprises main shaft, crossbeam, Ji Fenggai, sharf and lightweight blade;
Described main shaft is vertically arranged on pylon, can rotate freely;
Described crossbeam is that 3-6 root is isometric, be horizontal radiation shape and be symmetrically fixed on main shaft upper end, at the downside of every crossbeam and near the vertical fixed installation in outer end one window frame, sharf is vertically set in described window frame, described sharf and window frame are rotatably assorted, and are vertically fixedly installed the lightweight blade that can relatively corresponding window frame can open or close on each sharf;
The top of described window frame and bottom are horizontally disposed with respectively the Ji Fenggai of a circular arc platy structure, and described Ji Fenggai is positioned at the openable side of lightweight blade;
At the top of each sharf, one torque spring is set, one end of torque spring is fixed on sharf, the other end of torque spring is fixed on corresponding crossbeam, lightweight blade only under the twisting force of torque spring time lightweight blade be closed in corresponding window frame.
As a preferred embodiment of the present invention, vertical uniform many sharfs and the lightweight blade of arranging in described window frame.
Advantage of the present invention is: 1. owing to having adopted torque spring, make lightweight blade in the vertical plane in main shaft and crossbeam composition, stand ready and catch wind, and wind-catching surface be larger when calm, so wind energy conversion system response is fast; 2. because this wind energy conversion system has Ji Fenggai, when lightweight blade is with the wind time, increased air-flow lightweight blade upper and lower edge windward with the pressure difference of lee face, so wind energy conversion system moment large, start that wind speed is low, wind energy utilization large, breeze wind ability is strong, practicability is wide.
Accompanying drawing explanation
Fig. 1 is the structural representation with the vertical shaft offset distance formula wind energy conversion system of Ji Fenggai.
In accompanying drawing: 1-main shaft; 2-crossbeam; 3-leaf axle; 4-lightweight blade; 5-Ji Fenggai; 6-window frame; 7-torque spring.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
As shown in Figure 1, with the vertical shaft offset distance formula wind energy conversion system of Ji Fenggai, comprise main shaft 1, crossbeam 2, collection wind lid 5, sharf 3 and lightweight blade 4.
Wherein, main shaft 1 is vertically arranged on pylon, can rotate freely.Crossbeam 2 is that 3-6 root is isometric, is horizontal radiation shape and is symmetrically fixed on main shaft 1 upper end, at the downside of every crossbeam 2 and near the vertical fixed installation in outer end one window frame 6, sharf 3 is vertically set in window frame 6.Sharf 3 is rotatably assorted with window frame 6, is vertically fixedly installed the lightweight blade 4 that can relatively corresponding window frame 6 can open or close on each sharf 3.The top of window frame 6 and bottom are horizontally disposed with respectively a circular arc platy structure or circular collection wind lid 5, and collection wind lid 5 is positioned at the openable side of lightweight blade 4.One torque spring 7 is set at the top of each sharf 3, one end of torque spring 7 is fixed on sharf 3, the other end of torque spring 7 is fixed on corresponding crossbeam 2, and 4, lightweight blade makes lightweight blade 4 be closed in corresponding window frame 6 under the twisting force of torque spring 7.The elasticity coefficient of torque spring 7 is little, can just when calm, make 4 resets (lightweight blade 4 is closed in window frame 6) of lightweight blade.
In the present embodiment, vertical uniform many sharfs 3 and the lightweight blade 4 of arranging in window frame 6, reduce the choke of lightweight blade 4 with the wind between transient time of state conversion, wind efficiency is caught in raising.
Torque spring 7 is connected on crossbeam 2 and sharf 3, guarantees that lightweight blade 4 is closed in corresponding window frame 6 when calm.The respectively horizontal fixed set wind lid 5 in the top of window frame 6 and bottom, any direction is very faint the wind comes from and just can make against the wind lightweight blade 4 box hauls wave and to wind non-resistance almost, lightweight blade 4 has an angle with the wind comes from the wind, 4, lightweight blade is in sharf 3 turns to the vertical plane that main shaft 1 and crossbeam 2 form, and there is maximum wind-catching surface, be subject to blast and drive 2 rotations of sharf 3 and crossbeam.Because this wind energy conversion system has collection wind lid 5, when lightweight blade 4 is with the wind time, increased air-flow lightweight blade Shang Xia 4 edge windward with the pressure difference of lee face, so blower fan moment larger, start that wind speed is lower, wind energy utilization large, breeze wind ability is strong, practicability is wide.
Finally explanation is, above embodiment is only unrestricted in order to technological scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technological scheme of the present invention, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.

Claims (2)

1. with the vertical shaft offset distance formula wind energy conversion system of Ji Fenggai, it is characterized in that: comprise main shaft (1), crossbeam (2), Ji Fenggai (5), sharf (3) and lightweight blade (4);
Described main shaft (1) is vertically arranged on pylon, can rotate freely;
Described crossbeam (2) is that 3-6 root is isometric, be horizontal radiation shape and be symmetrically fixed on main shaft (1) upper end, at the downside of every crossbeam (2) and near the vertical fixed installation in outer end one window frame (6), sharf (3) is vertically set in described window frame (6), described sharf (3) and window frame (6) are rotatably assorted, and are vertically fixedly installed the lightweight blade (4) that can relatively corresponding window frame (6) can open or close on each sharf (3);
The top of described window frame (6) and bottom are horizontally disposed with respectively the Ji Fenggai (5) of a circular arc platy structure, and described Ji Fenggai (5) is positioned at the openable side of lightweight blade (4);
At the top of each sharf (3), a torque spring (7) is set, one end of torque spring (7) is fixed on sharf (3), it is upper that the other end of torque spring (7) is fixed on corresponding crossbeam (2), lightweight blade (4) only under the twisting force of torque spring (7) time lightweight blade (4) be closed in corresponding window frame (6).
2. the vertical shaft offset distance formula wind energy conversion system with Ji Fenggai according to claim 1, is characterized in that: upper vertically uniform many sharfs (3) and the lightweight blade (4) of arranging of described window frame (6).
CN201310677733.4A 2013-12-13 2013-12-13 Perpendicular shaft offset distance type wind machine with wind collection covers Pending CN103615355A (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104385909A (en) * 2014-11-11 2015-03-04 陆新田 Wind power generation device for car
CN105545587A (en) * 2016-01-29 2016-05-04 枣庄惠风能源科技有限公司 Automatic wind energy convertor adopting vertical axis
CN106351791A (en) * 2016-11-16 2017-01-25 马立志 Vertical wind turbine and wind driven generator

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2484415Y (en) * 2001-06-30 2002-04-03 郑志生 Water-wind power generator impeller
JP2005233143A (en) * 2004-02-23 2005-09-02 Hachiken:Kk Vertical blade vertical shaft wind mill
CN200993077Y (en) * 2006-11-30 2007-12-19 张智坤 Universal wind tower
CN101196160A (en) * 2007-12-06 2008-06-11 上海爱瑞科技发展有限公司 Vertical axis wind wheel device with wind velocity lift and dual flow guide
CN101196162A (en) * 2007-11-29 2008-06-11 杨德堃 Fluid kinetic energy collecting wheel
CN201190635Y (en) * 2008-05-22 2009-02-04 邵志奎 Wind power generator
KR20100103801A (en) * 2007-12-05 2010-09-28 바이엘 크롭사이언스 아게 Pesticidal compound mixtures
JP2012082713A (en) * 2010-10-07 2012-04-26 chui-nan Qiu Vertical shaft type wind force kinetic energy generating device by composite rotation mechanism of drag airfoil and erected lift airfoil using tower type multipolar wind tunnel effect

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2484415Y (en) * 2001-06-30 2002-04-03 郑志生 Water-wind power generator impeller
JP2005233143A (en) * 2004-02-23 2005-09-02 Hachiken:Kk Vertical blade vertical shaft wind mill
CN200993077Y (en) * 2006-11-30 2007-12-19 张智坤 Universal wind tower
CN101196162A (en) * 2007-11-29 2008-06-11 杨德堃 Fluid kinetic energy collecting wheel
KR20100103801A (en) * 2007-12-05 2010-09-28 바이엘 크롭사이언스 아게 Pesticidal compound mixtures
CN101196160A (en) * 2007-12-06 2008-06-11 上海爱瑞科技发展有限公司 Vertical axis wind wheel device with wind velocity lift and dual flow guide
CN201190635Y (en) * 2008-05-22 2009-02-04 邵志奎 Wind power generator
JP2012082713A (en) * 2010-10-07 2012-04-26 chui-nan Qiu Vertical shaft type wind force kinetic energy generating device by composite rotation mechanism of drag airfoil and erected lift airfoil using tower type multipolar wind tunnel effect

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104385909A (en) * 2014-11-11 2015-03-04 陆新田 Wind power generation device for car
CN105545587A (en) * 2016-01-29 2016-05-04 枣庄惠风能源科技有限公司 Automatic wind energy convertor adopting vertical axis
CN106351791A (en) * 2016-11-16 2017-01-25 马立志 Vertical wind turbine and wind driven generator

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