CN201705551U - Wind driven generator with blade angle self-adjustment function - Google Patents

Wind driven generator with blade angle self-adjustment function Download PDF

Info

Publication number
CN201705551U
CN201705551U CN2010202424157U CN201020242415U CN201705551U CN 201705551 U CN201705551 U CN 201705551U CN 2010202424157 U CN2010202424157 U CN 2010202424157U CN 201020242415 U CN201020242415 U CN 201020242415U CN 201705551 U CN201705551 U CN 201705551U
Authority
CN
China
Prior art keywords
blade
wind
impeller
driven generator
fixed
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.)
Expired - Fee Related
Application number
CN2010202424157U
Other languages
Chinese (zh)
Inventor
张达汇
张国欣
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN2010202424157U priority Critical patent/CN201705551U/en
Application granted granted Critical
Publication of CN201705551U publication Critical patent/CN201705551U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Wind Motors (AREA)

Abstract

The utility model discloses a wind driven generator with a blade angle self-adjustment function, which comprises blades, a blade shaft and an impeller. The blades are sleeved on the blade shaft, the blade shaft is fixed on the impeller, one end of a resetting spring is fixed on the blades while the other end is fixed on the impeller, and an elasticity direction of the resetting spring keeps the blades at original positions when in rated air speed. The wind driven generator has the advantages of simple structure, low manufacturing cost, mounting cost and maintenance cost and the like.

Description

Blade angle self-regulating wind-driven generator
Technical field
The utility model relates to a kind of generator, specifically is a kind of blade angle self-regulating wind-driven generator.
Background technique
Along with the fast development of national economy, energy shortage has become a problem that is on the rise, and wind energy development, development wind-power electricity generation are the research topics that current energy project receives much concern.As everyone knows, wind energy is present in nature, and it is caused by solar radiant heat, and solar energy impinges is to earth surface, causes the earth surface inequality of being heated, and produces the temperature difference, causes the convection current of atmosphere and forms wind.Wind is flow air, and it has speed, and density is arranged, so contain energy, wind is inexhaustible clean energy resource, but the randomness that wind energy distributes is very strong, does not have specific rule, in different regions, and Various Seasonal, the wind-force of different periods is all inequality.Because the unstability of natural wind energy, giving in the wind-powered electricity generation conversion needs the generator of stabilization of speed to bring very big difficulty, becomes the major technique obstacle of wind-powered electricity generation development.
Present big-and-middle-sized wind-driven generator all adopts the gear-box mechanical speed change by generator to the requirement of rotating speed, then is the angle that changes the windward side of blade by hydraulic transmission to the control of rotating speed.Because the hydraulic transmission reflection lags behind, and causes wheel speed very unstable, so generating energy and frequency are also very unstable.
Small-sized wind power generator generally adopts vanes fixed at present, does not control wheel speed, and takes to send out direct current, charges into storage battery, behind the storage battery pressure-raising, becomes Ac through inverter again, uses for the user again.This way, not only electricity consumption inconvenience has also improved electric cost simultaneously.
No matter be direct current wind-driven generator or interchange wind-driven generator, when wind speed was excessive, windmill increased resistance of air, and wind not only makes blade broken easily to the pressure that air vane produces, but also can damage Yawing mechanism, and the too fast rotating speed of impeller also is harmful to generator.
The model utility content
Technical problem to be solved in the utility model provides a kind of blade angle self-regulating wind-driven generator, can so that wheel speed is relatively stable, can be applicable to the wind-force alternative electric generation according to the area of wind speed size timely adjustment windward side.
The utility model is achieved through the following technical solutions:
The utility model blade angle self-regulating wind-driven generator, comprise blade, sharf and impeller, described blade is sleeved on the sharf, sharf is fixed on the impeller, Returnning spring one end is fixed in that the other end is fixed on the impeller on the blade, and the elasticity direction of Returnning spring is blade home position when making blade remain on rated wind speed.
Blade is taked radially folding paper installation, can change the angle with the windward side under the effect of wind-force automatically.The active force of crossing spring in wind speed hour blade pass returns to the home position.The main purpose that blade takes folding paper to install is when wind speed is excessive, to reduce windmill to resistance of air, protection power generating equipment safety.
The angle of blade home position and windward side meets following relation:
Original angle=the rated wind speed of blade and windward side/variant radius blade peripheral velocity.
Wherein, rated wind speed is meant the minimum windspeed when reaching generator requirement rotating speed.
Because blade can change angle automatically when wind is big, can reduce the windage of impeller significantly, can increase blade quantity like this, to improve wind energy utilization.
The revolution stop in blade home position carries out spacing when also being equipped with blade retaining at rated wind speed on impeller or the blade.
The utility model blade angle self-regulating wind-driven generator can be according to the area of wind speed size timely adjustment windward side, and it is little to make that wheel speed is subjected to wind speed to influence variation, helps the safety of protection power generating equipment when high wind speed.The utlity model has simple in structure, low cost of manufacture, advantage such as installation fee and maintenance cost are low can be applicable to the wind-force alternative electric generation.
Description of drawings
Fig. 1 is the structural representation of the utility model blade angle self-regulating wind-driven generator;
Fig. 2 is the blade installation mode structural representation of the utility model blade angle self-regulating wind-driven generator;
Fig. 3 is the scheme of installation of Returnning spring in the utility model blade angle self-regulating wind-driven generator;
Among the figure: the 1-blade, the 2-sharf, the 3-impeller, the 4-Returnning spring, 5-turns round stop, 6-wind-guiding centrum.
Embodiment
Below by specific embodiment the utility model is described in further detail.
Shown in Figure of description 1-3, the utility model blade angle self-regulating wind-driven generator, comprise blade 1, sharf 2, impeller 3, Returnning spring 4 and wind-guiding centrum 6, blade 1 is sleeved on the sharf 2, sharf 2 is fixed on the impeller 3, blade can be rotated relative to sharf, and Returnning spring 4 one ends are fixed in that the other end is fixed on the impeller 3 on the blade 1, and the elasticity direction of Returnning spring 4 is blade home positions when making blade 1 remain on rated wind speed.
The revolution stop 5 in blade home position when also being equipped with blade 1 retaining on the blade 1 at rated wind speed, carry out spacing, Returnning spring 4 is enclosed within on the sharf 2 for helical, spring one end is fixed on that an end is fixed on the impeller on the blade, see Figure of description 3, arrow A is represented wind direction among the figure, and arrow B is represented wind blade sense of rotation, and arrow C is represented the action of reset spring force direction.Fig. 3 is shown in the direction of D among Fig. 1.
When A wind speed aweather increases, it is big that blade 1 is subjected to blast, it is that B is to rotation to the angle consistent with wind direction that wind drives blade 1, this moment of torsion is compressed Returnning spring greater than the moment of torsion that Returnning spring produced, the area of blade windward side can reduce, wheel speed and windage can not increased with wind-force significantly improve, avoid the excessive destruction of windage generator set.When wind speed reduces, the blast that blade is subjected to is few, Returnning spring drives blade to the angular turn vertical with wind direction, the area of blade 1 windward side can increase, the blast that blade is accepted increases, and the moment of torsion that wind moment of torsion and Returnning spring are produced reaches balance again, though this moment, wind speed reduced, but wheel speed can obviously not reduce, and can satisfy the rotating speed needs of generator.And in Returnning spring bounce-back, blade return, the revolution stop has limited the rotation amplitude of blade.What time make that below the windmill windage can be not excessive when high wind speed, avoid when too fast wind speed infringement generator set.

Claims (3)

1. blade angle self-regulating wind-driven generator, it is characterized in that: comprise blade, sharf and impeller, described blade is sleeved on the sharf, sharf is fixed on the impeller, Returnning spring one end is fixed in that the other end is fixed on the impeller on the blade, and the elasticity direction of Returnning spring is blade home position when making blade remain on rated wind speed.
2. blade angle self-reacting device according to claim 1 is characterized in that: also be equipped with on impeller or blade the revolution stop of blade retaining in described home position.
3. blade angle self-reacting device as claimed in claim 1 or 2, it is characterized in that: described Returnning spring is that helical is enclosed within on the sharf.
CN2010202424157U 2010-06-30 2010-06-30 Wind driven generator with blade angle self-adjustment function Expired - Fee Related CN201705551U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202424157U CN201705551U (en) 2010-06-30 2010-06-30 Wind driven generator with blade angle self-adjustment function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202424157U CN201705551U (en) 2010-06-30 2010-06-30 Wind driven generator with blade angle self-adjustment function

Publications (1)

Publication Number Publication Date
CN201705551U true CN201705551U (en) 2011-01-12

Family

ID=43442706

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010202424157U Expired - Fee Related CN201705551U (en) 2010-06-30 2010-06-30 Wind driven generator with blade angle self-adjustment function

Country Status (1)

Country Link
CN (1) CN201705551U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104454377A (en) * 2013-09-23 2015-03-25 王智勇 Wind driven generator with movable blades
CN105736235A (en) * 2016-04-12 2016-07-06 王伟亮 Umbrella-distributed self wind searching blade and self wind searching wind driven generator
CN106979125A (en) * 2017-04-17 2017-07-25 马桂芳 A kind of bilobed wheel fluid power plant

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104454377A (en) * 2013-09-23 2015-03-25 王智勇 Wind driven generator with movable blades
CN105736235A (en) * 2016-04-12 2016-07-06 王伟亮 Umbrella-distributed self wind searching blade and self wind searching wind driven generator
CN106979125A (en) * 2017-04-17 2017-07-25 马桂芳 A kind of bilobed wheel fluid power plant

Similar Documents

Publication Publication Date Title
Saad et al. Comparison of horizontal axis wind turbines and vertical axis wind turbines
Sunyoto et al. The effect of number of blades on the performance of H-Darrieus type wind turbine
CN201705551U (en) Wind driven generator with blade angle self-adjustment function
CN103133264B (en) Wind driven generator system based on flywheel energy storage speed adjustment
CN101457744A (en) Passive paddle changing wind power generator
CN104533708A (en) Gear mechanism based self-rotation blade impeller
CN201339543Y (en) Passive pitch-controlled wind-powered generator
CN201016325Y (en) Novel wind-energy generator
Ajao et al. Development and power performance test of a small three-blade horizontal-axis wind turbine
CN202381253U (en) Round blade windmill
CN204805030U (en) Dual drive wind power generation set
CN201972846U (en) Spiral type turbine blade and vertical axle spiral type turbine blade wind motor
CN201705549U (en) Enhancement pneumatic type wind generator
CN206860368U (en) Mixed type wind power generating set
CN202756173U (en) Adjustable-speed wind wheel
CN103573556A (en) Double-energy power generating device
CN201661420U (en) Spiral-type vertical shaft wind power impeller
CN201963471U (en) Blade of magnetic levitation savonius rotor wind driven generator
Vidyanandan Recent developments in wind turbine systems
CN203146228U (en) Floating flow guide type vertical axis wind driven generator
Yusof et al. Vertical Axis Wind Turbines: An Overview
CN104595104A (en) Vertical shaft fan impeller with flexible vanes
CN104481811A (en) Lift force and resistance force integrated vertical axis wind turbine
Badran et al. Evaluation of parameters affecting wind turbine power generation
CN104454339A (en) Vertical axis draught fan impeller based on bevel gear transmission

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110112

Termination date: 20110630