CN102192097A - Wind-pressure type blade-changing device of wind turbine - Google Patents

Wind-pressure type blade-changing device of wind turbine Download PDF

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Publication number
CN102192097A
CN102192097A CN2010101428028A CN201010142802A CN102192097A CN 102192097 A CN102192097 A CN 102192097A CN 2010101428028 A CN2010101428028 A CN 2010101428028A CN 201010142802 A CN201010142802 A CN 201010142802A CN 102192097 A CN102192097 A CN 102192097A
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CN
China
Prior art keywords
wind
wind turbine
blade
pressure type
energy storage
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
CN2010101428028A
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Chinese (zh)
Inventor
吴永忠
刘文兵
查咏
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.)
Institute of Water Resources for Pasteral Area Ministry of Water Resources PRC
Original Assignee
Institute of Water Resources for Pasteral Area Ministry of Water Resources PRC
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 Institute of Water Resources for Pasteral Area Ministry of Water Resources PRC filed Critical Institute of Water Resources for Pasteral Area Ministry of Water Resources PRC
Priority to CN2010101428028A priority Critical patent/CN102192097A/en
Publication of CN102192097A publication Critical patent/CN102192097A/en
Pending legal-status Critical Current

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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Wind Motors (AREA)

Abstract

The invention provides a wind-pressure type blade-changing device of a wind turbine, belonging to the field of wind turbines. Blades in the device are hinged with a hub to form a wind wheel system and a dual-slider multi-link mechanism for controlling blade distances. A wind wheel is arranged on the revolving axle of a generator; an energy storage spring is coaxial with the revolving axle; and the front end of the energy storage spring is connected with the blades by virtue of steel wire ropes. The device is in a large attack angle state when the wind turbine starts up a front blade, thus being convenient for starting the wind turbine; the device causes the output characteristic of the wind turbine to be stable, thus the wind turbine operates safely; and a mechanical transmission system of the device is simple in structure and low in manufacturing cost.

Description

Wind energy conversion system wind pressure type vane change device
Affiliated technical field
Patent of the present invention is a kind of wind energy conversion system wind pressure type vane change device, belongs to the wind energy conversion system field.
Background technique
The vane change device that uses on small wind turbine at present is generally centrifugal variation paddle or automatically controlled change oar.The regulation and control of centrifugal variation paddle medium speed are positive feedback regulation and control, along with wind speed increases, the increase of power are slowed down; Can not reach the purpose of control fully; And executive component is arranged in the automatically controlled change oar, and the observing and controlling element is arranged again, structure is very complicated, uses very uneconomical on small wind turbine.
Summary of the invention
In order to overcome existing wind energy conversion system vane change device complex structure, to become the inefficient deficiency of oar, special a kind of new wind energy converter---the wind energy conversion system wind pressure type vane change device that proposes of patent of the present invention.
Patent wind energy conversion system wind pressure type vane change device of the present invention mainly is made up of energy storage spring, wire rope, wheel hub, blade, turning axle, linkage mechanism etc.Its structure is the blade hinge joint forms wind wheel system and control pitch on wheel hub a double-slider multi-connecting-rod mechanism.Wind wheel is contained on the turning axle of generator, and energy storage spring is coaxial with turning axle, and its front end is linked by wire rope and blade.
The working procedure of this wind energy conversion system wind pressure type vane change device is: along with the increase of natural wind speed, the positive pressure of the wind that the wind wheel swept surface is suffered is also along with increase, when wind speed during greater than rated wind speed, blast overcomes the resistance of spring, impels wind wheel to move horizontally along wind direction, when wind wheel moves horizontally, by being fixed on the connecting rod on wheel hub and the blade, change the established angle of blade, make blade become oar, reduce lift, reach the purpose of speed limit; When wind speed diminished, spring overcame blast, and wind wheel moves to above-mentioned opposite direction (coming flow path direction), makes blade oppositely become oar by connecting rod, kept wind speed round, improved wind energy utilization.
This wind energy conversion system wind pressure type vane change device is in big angle of attack state at wind energy conversion system prestart blade, is convenient to the wind energy conversion system starting; This vane change device makes the wind energy conversion system output characteristics stable, wind energy conversion system running safety; This vane change device machine driven system is simple in structure, has reduced manufacture cost.
Description of drawings: Fig. 1 is the work schematic representation of this wind energy conversion system wind pressure type vane change device.
Embodiment: embodiment's (see figure 1)
Patent wind energy conversion system wind pressure type vane change device of the present invention mainly is made up of energy storage spring 1, wire rope 2, wheel hub 3, blade 4, turning axle 6, linkage mechanism 6 etc.; Blade 4 hinge joints form the double-slider multi-connecting-rod mechanism of wind wheel system and control pitch on wheel hub 3.Wind wheel is contained on the turning axle 5 of generator 7, and energy storage spring 1 is coaxial with turning axle 5, and the free end of energy storage spring 1 connects by wire rope 2 with the root of blade 4.

Claims (1)

1. patent of the present invention is a kind of wind energy conversion system wind pressure type vane change device, and it mainly is made of energy storage spring, wire rope, wheel hub, blade, turning axle, linkage mechanism; The blade hinge joint forms the double-slider multi-connecting-rod mechanism of wind wheel system and control pitch on wheel hub; Wind wheel is contained on the turning axle of generator, and energy storage spring is coaxial with turning axle, and its front end is linked by wire rope and blade.
CN2010101428028A 2010-03-09 2010-03-09 Wind-pressure type blade-changing device of wind turbine Pending CN102192097A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010101428028A CN102192097A (en) 2010-03-09 2010-03-09 Wind-pressure type blade-changing device of wind turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010101428028A CN102192097A (en) 2010-03-09 2010-03-09 Wind-pressure type blade-changing device of wind turbine

Publications (1)

Publication Number Publication Date
CN102192097A true CN102192097A (en) 2011-09-21

Family

ID=44600806

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010101428028A Pending CN102192097A (en) 2010-03-09 2010-03-09 Wind-pressure type blade-changing device of wind turbine

Country Status (1)

Country Link
CN (1) CN102192097A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103016259A (en) * 2012-11-06 2013-04-03 刘文普 Wind power generator wind wheel capable of automatically changing pitch angle of fan blade according to wind power
CN104806447A (en) * 2014-01-27 2015-07-29 水利部牧区水利科学研究所 Mechanical wind pressure variable pitch device of mini-sized wind turbine
CN112177848A (en) * 2020-09-29 2021-01-05 沈阳航空航天大学 Method for improving starting performance of horizontal axis wind turbine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5783672A (en) * 1980-11-12 1982-05-25 Shin Meiwa Ind Co Ltd Pitch control device of propeller type wind mill
US4443154A (en) * 1979-08-27 1984-04-17 Randolph Arthur J Windmill tower shadow eliminator
CN2358243Y (en) * 1998-08-26 2000-01-12 查咏 Leeward slide block linkage feathering equipment
JP2004124771A (en) * 2002-09-30 2004-04-22 Daiwa House Ind Co Ltd Brake system for horizontal shaft type windmill
CN101644230A (en) * 2008-07-16 2010-02-10 宜兴市华泰国际集团工业有限公司 Blade pitch changing device of wind power generation device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4443154A (en) * 1979-08-27 1984-04-17 Randolph Arthur J Windmill tower shadow eliminator
JPS5783672A (en) * 1980-11-12 1982-05-25 Shin Meiwa Ind Co Ltd Pitch control device of propeller type wind mill
CN2358243Y (en) * 1998-08-26 2000-01-12 查咏 Leeward slide block linkage feathering equipment
JP2004124771A (en) * 2002-09-30 2004-04-22 Daiwa House Ind Co Ltd Brake system for horizontal shaft type windmill
CN101644230A (en) * 2008-07-16 2010-02-10 宜兴市华泰国际集团工业有限公司 Blade pitch changing device of wind power generation device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103016259A (en) * 2012-11-06 2013-04-03 刘文普 Wind power generator wind wheel capable of automatically changing pitch angle of fan blade according to wind power
CN104806447A (en) * 2014-01-27 2015-07-29 水利部牧区水利科学研究所 Mechanical wind pressure variable pitch device of mini-sized wind turbine
CN112177848A (en) * 2020-09-29 2021-01-05 沈阳航空航天大学 Method for improving starting performance of horizontal axis wind turbine
CN112177848B (en) * 2020-09-29 2021-08-10 沈阳航空航天大学 Method for improving starting performance of horizontal axis wind turbine

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Application publication date: 20110921