CN207212580U - A kind of layer-stepping blower fan wind wheel and the wind energy conversion system using layer-stepping blower fan wind wheel - Google Patents
A kind of layer-stepping blower fan wind wheel and the wind energy conversion system using layer-stepping blower fan wind wheel Download PDFInfo
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- CN207212580U CN207212580U CN201720460931.9U CN201720460931U CN207212580U CN 207212580 U CN207212580 U CN 207212580U CN 201720460931 U CN201720460931 U CN 201720460931U CN 207212580 U CN207212580 U CN 207212580U
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- Prior art keywords
- blade
- wind wheel
- length extension
- extension device
- blower fan
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- 238000010586 diagram Methods 0.000 description 24
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- 239000007789 gas Substances 0.000 description 14
- 239000001307 helium Substances 0.000 description 10
- 229910052734 helium Inorganic materials 0.000 description 10
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 239000004033 plastic Substances 0.000 description 8
- 238000007789 sealing Methods 0.000 description 7
- 239000001257 hydrogen Substances 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 240000007182 Ochroma pyramidale Species 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910052754 neon Inorganic materials 0.000 description 2
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- 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
-
- 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
- F03D1/0675—Rotors characterised by their construction elements of the blades
-
- 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
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/022—Adjusting aerodynamic properties of the blades
- F03D7/0236—Adjusting aerodynamic properties of the blades by changing the active surface of the wind engaging parts, e.g. reefing or furling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05B2240/31—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape
- F05B2240/312—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape capable of being reefed
-
- 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
Abstract
The utility model provides a kind of layer-stepping blower fan wind wheel and the wind energy conversion system using layer-stepping blower fan wind wheel, by using layer-stepping blower fan wind wheel, the wind energy of root of blade can effectively be make use of, reduce the threshold wind velocity and rated wind speed of blower fan, improve the generating efficiency of blower fan, so as to reach the purpose of breeze start-up blower fan, simultaneously, it make use of the blower fan wind wheel advantage with length extension device, the length of rotor diameter or blade can effectively be increased, the blade of a kind of 200 meters of diameter above of ultra-large type or more than 100 meters length can be provided, and more than 10 megawatts wind-driven generators, simultaneously, the utility model also has Anti-Typhoon ability.
Description
Technical field
The invention belongs to technical field of wind energy utilization, is especially adapted for use in wind-powered machine and technical field of wind power generation.
Background technology
Horizontal axis propellers formula wind energy conversion system is mostly with 2 blades or 3 leaf structures at present, and generator shaft is arranged on by blade
Or wind wheel is formed on wheel hub, such structure can be that the velocity of rotation of wind wheel is optimal, and its weak point is threshold wind velocity
Require higher with rated wind speed, and the wind energy utilization efficiency of root of blade is very low, in order to adapt to the requirement of low wind speed wind field, it is necessary to
The length of blade is continuously increased, and after increasing length of blade, the anti-high wind ability of blower fan has declined again；Therefore, invention is a kind of
Threshold wind velocity or rated wind speed can be reduced, high wind using breeze start-up and can be resisted again while improve the wind energy profit of root of blade
Extremely it is necessary with the wind-driven generator of efficiency.
The content of the invention
Using breeze start-up and it can resist high wind it is an object of the invention to provide a kind of again while improve the wind of root of blade
The wind-driven generator of energy utilization ratio.It is a further object of the present invention to provide a kind of wind-force hair suitable for low speed wind resource
Motor, meanwhile, the present invention can also provide a kind of wind wheel or blade with growing apparatus, and the length extension device is that one kind can be used
Come the device for increasing rotor diameter or being used for increasing length of blade.Ultra-large type wind-driven generator can be developed.
Present invention utilizes the fan blade of two kinds of different lengths, describes for convenience, present invention definition：Normal length
Fan blade is referred to as long fan blade, another length shorter referred to as short fan blade or small wind wheel.
A kind of layer-stepping blower fan wind wheel, including fan shaft, wheel hub and at least one long fan blade composition wind wheel or
Big wind wheel, it is characterized in that, on the wind wheel of the long fan blade composition, at least one short fan blade or small wind are installed
Wheel.
The short fan blade or small wind wheel are arranged on the wheel hub of long fan blade or before it.
The short fan blade or small wind wheel are arranged on the wheel hub of long fan blade or on the fan shaft before it.
The long fan blade or short fan blade can be arbitrary shapes, such as common trunnion axis fan blade or spiral shell
Revolve shape fan blade.
The wind wheel of the long fan blade composition can be arbitrary shape, such as common trunnion axis blower fan wind wheel or spiral
Shape blower fan wind wheel.The wind wheel of the short fan blade composition can be arbitrary shape, such as common trunnion axis blower fan wind wheel or
Helical form blower fan wind wheel.
The layer-stepping refer to the fan blade that at least two or more length are provided with same blower fan or two kinds or
The blower fan wind wheel of above length diameter.
Preferably, the short fan blade is multiple.Preferably, the short fan blade is 2--20, it is preferred that institute
It is 3--15 to state short fan blade.The long fan blade is 2-11.The short fan blade is more, the rotation provided
Torque is bigger.
Preferably, the short fan blade is to be arranged on same wheel hub to form a length layering with long fan blade
Wind wheel structure.
Preferably, the short fan blade is on another separately installed wheel hub, forms double wind wheel structure.
Preferably, the small wind wheel of the short fan blade composition is mounted in before big wind wheel.
The effect of the short fan blade or small wind wheel is to improve staring torque, improves the wind energy profit of long root of fan blade
With rate, while rated wind velocity is improved, threshold wind velocity is reduced, so as to realize breeze wind；Its another effect is to may be mounted at institute
The front of or above of length extension device is stated, for reducing resistance of the length extension device to wind, so as to reduce wind-force onto power is shifted to tower bar
Square.
Preferably, wind wheel of the present invention, blower fan wind wheel or blade with length extension device can also be selected, it is described to lengthen dress
It is a kind of device that can be used for increasing rotor diameter or being used for increasing length of blade to put.
Preferably, the length extension device can substitute the effect of wheel hub.
A kind of blower fan wind wheel or blade with length extension device, including at least one wind mill wind wheel or blade, it is characterized in that,
There is at least one length extension device on the wind wheel or blade, inside or outside the length extension device, install or be provided with
Confined space device；The gas that density is less than air is filled in the confined space device, or in the confined space device
It is inside rarefied air.
The length extension device, any materials, including flexible material or hard material can be used.
The length extension device, including housing and the confined space device of inside.
The density is less than the gas of air, refers to the density of gas of all relative molecular weights less than 29, both less than sky
The density of gas, for example, hydrogen, helium, neon, nitrogen, carbon monoxide, methane, hydrogen fluoride, acetylene etc..
Preferably, any ratio of hydrogen or helium or neon or nitrogen or the gas is filled in the confined space device
Example mixture.
Most preferably use helium.But in order to reduce cost, hydrogen and nitrogen or hydrogen and helium can also be used
Mixed gas, it so can both overcome and the shortcomings that hydrogen is easily ignited is used alone, cost can also be reduced, me can also be reached
Application target.
The confined space device can use any materials, including flexible material or hard material.
When the confined space device uses flexible material, for example, using rubber-like membrane material or Plastic membrane material
When, the gas that density is less than air, such as the mixture of helium or hydrogen and nitrogen must be filled with inside it；Rubber-like membrane material
Or Plastic membrane material volume will expand, and then seal.The confined space device produces upward buoyancy, institute in atmosphere
The gravity that buoyancy will be offset or the whole length extension device of partial offset is downward is stated, so as to reduce the weight of length extension device, when described
When confined space device volume is sufficiently large, when its caused buoyancy is more than length extension device downward gravity, the length extension device
Weight be zero or negative value.The diameter of wind wheel or the length of blade can so be increased, overall wind wheel can also be mitigated
Weight.
When the confined space device uses hard material, it has two kinds of selections, you can is filled with using inside it
The gas that density is less than air produces buoyancy, can also extract the air in its inner space out, form low density gas, Ye Ji
It is internally formed vacuum state, can also produce upward buoyancy, the buoyancy will offset or partial offset length extension device to
Under gravity, so as to reduce the weight of wind wheel or blade.
When the gas pressure in the confined space device is sufficiently large, it can be substituted completely or part substitutes and lengthens dress
The supporter of inside is put, so as to reduce support body material, reduces the weight of length extension device in itself.
We are by largely calculating and simulated experiment is drawn a conclusion, when the gas pressure in confined space device is more than
During 1.5-2 atmospheric pressure, it can substitute or partly substitute the supporter inside length extension device completely.
The confined space device can also be the length extension device shell itself, in the enclosure interior, set one
Fixed region, the gas of air is less than full of density, is then sealed.
The confined space device is the device that gas no longer leaks after sealing.
Preferably, fan blade of the present invention is mounted on the length extension device.The length extension device and fan blade it
Between be telescopic, include control system, length extension device and blade on the blower fan wind wheel or blade with length extension device, its
It is characterized in, the control system connection blade or length extension device, the control system can be by vanes retracts to length extension device
Or blade is stretched out out of length extension device, blade is shortened or is increased.
Preferably, in the inside of the length extension device, carrier is installed, the carrier, being can be by vanes retract to load
The device in vivo or out of carrier stretching out blade.
The control system includes signal receiver, controller and power set, and wind can be received by signal receiver
The size of power and direction, are transmitted to controller, and controller can be by power set control vanes retract to length extension device
Length, or the length that control blade stretches out out of length extension device；The distance of the contraction or elongation, being can be according to the big of wind-force
What small and direction was arbitrarily adjusted.The control system may be mounted at the optional position of blower fan.
When wind-force deficiency, signal receiver can receive size and the direction of wind-force, be transmitted to controller, and controller can
To control leaf elongation to utilize wind energy to greatest extent to most long position by power set；When wind-force exceedes specified wind
When fast, controller can control vanes retract power output is reached maximum to certain position by power set；Can be by leaf
The most short Position Design of piece, still can be after to that, when typhoon, can be retracted to most short position with Anti-Typhoon position completely
Continuous work.Such as：If a common blower fan of 1.5 megawatts, length of blade is 36 meters, when typhoon, can only pass through change
Oar system is shut down；If during using wind wheel of the present invention or blade, it is possible to which the contraction in length of blade is to 20 meters or shorter
Length, therefore, its anti-high wind ability will greatly improve, it is possible to and worked in typhoon, make full use of the energy of typhoon,
At the same time it can also the safety of protection equipment, generating efficiency is improved.
The power set, motor power can be used, hydraulic power unit or any known power can also be used
Device.
Signal receiver of the present invention can also receive the positional information of blade rotation, can be rotated to not according to blade
Same position, it is any to adjust vanes retract or the distance of elongation.
, can be with when blade turns to the setting position of lower branch or lower branch for horizontal axis wind-driven generator
By vanes retract；, can be by leaf elongation when blade turns to the setting position of upper half-turn or upper half-turn；Thus can be
The height of tower is effectively reduced during design；Meanwhile the wind resource of upper half-turn is big, the wind resource of lower branch is small, thus
Wind energy utilization can be improved to greatest extent, improve generating efficiency.
When typhoon, blade can be shunk simultaneously.
The length extension device can be independent or blade a part.The telescopic position, Ke Yishi
In the root of blade or in the tip of blade or optional position.The length extension device, may be mounted on wheel hub or wind
Optional position on machine.The wind wheel, blade connecting rod can be included.
Preferably, the small wind wheel that the short fan blade forms is mounted in before the length extension device or structural plane
On.
The shape of the length extension device, arbitrary shape can be used, it is preferred that can make and corresponding fan blade phase
Together.
Preferably, the length extension device is spheroid shape or the part or ball-type of spheroid shape or a part for ball-type or any
Shape.
Preferably, inside or outside wind wheel of the present invention or blade, install or be provided with confined space device；
The gas that density is less than air is filled in the confined space device, or in the confined space device is rarefied air.
A kind of wind energy conversion system using layer-stepping blower fan wind wheel, including wind wheel or blade, generator system, it is characterized in that, institute
It is layer-stepping blower fan wind wheel of the present invention to state wind wheel.Possess all advantages of layer-stepping blower fan wind wheel of the present invention.
In the present invention, known wind powered generator system is divided into two parts, one is wind wheel or blade, another part is referred to as
For generator system, do not do and segment one by one, its course of work is that the kinetic energy of wind is converted into mechanical energy and band by wind wheel or blade
Dynamic generator system generates electricity.
The beneficial effects of the invention are as follows：
The present invention can effectively make use of the wind energy of root of blade, reduce wind by using layer-stepping blower fan wind wheel
The threshold wind velocity and rated wind speed of machine, the generating efficiency of blower fan is improved, so as to reach the purpose of breeze start-up blower fan, meanwhile,
The blower fan wind wheel advantage with length extension device is make use of, can effectively increase the length of rotor diameter or blade, one can be provided
The blade of kind 200 meters of diameter above of ultra-large type or more than 100 meters length, and more than 10 megawatts wind-driven generators, the lengthening
Device, it can not increase while length is increased or the overall weight of wind wheel can be reduced.
4th, illustrate：
Fig. 1 is trunnion axis fan blade structure principle schematic of the present invention；
Fig. 2 is trunnion axis blower fan wind wheel structure principle front view schematic diagram of the present invention；
Fig. 3 is trunnion axis blower fan wind wheel structure principle left view schematic diagram of the present invention；
Fig. 4 is another structural principle front view schematic diagram of trunnion axis blower fan wind wheel of the present invention；
Fig. 5 is another structural principle left view schematic diagram of trunnion axis blower fan wind wheel of the present invention；
Fig. 6 is the another structural principle front view schematic diagram of trunnion axis blower fan wind wheel of the present invention；
Fig. 7 is the another structural principle left view schematic diagram of trunnion axis blower fan wind wheel of the present invention；
Fig. 8 is the another structural principle front view schematic diagram of trunnion axis blower fan wind wheel of the present invention；
Fig. 9 is the another structural principle left view schematic diagram of trunnion axis blower fan wind wheel of the present invention；
Figure 10 is the another structural principle front view schematic diagram of trunnion axis blower fan wind wheel of the present invention；
Figure 11 is the another structural principle left view schematic diagram of trunnion axis blower fan wind wheel of the present invention；
Figure 12 is the another structural principle front view schematic diagram of trunnion axis blower fan wind wheel of the present invention；
Figure 13 is the another structural principle left view schematic diagram of trunnion axis blower fan wind wheel of the present invention；
Accompanying drawing mark
1 long 2 length extension device of fan blade, 3 confined space device, the 4 long generator system 7 of 5 tower bar of fan blade 6 is taken turns
8 fan shaft of hub, 9 short fan blade
5th, embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings：
Embodiment one：
As shown in figure 1, Fig. 1 is trunnion axis fan blade structure principle schematic of the present invention；In the root of the blade 1
Portion is provided with length extension device 2, and one or more confined space devices 3 are provided with the inside of the length extension device 2, described closed
Room device 3 is filled with the rubber seal bag or plastic sealing bag of helium, and it can be substituted or part substitutes original inside and filled out
Fill thing such as cork wood or foamed material or floor.When blade movement, rubber seal bag or plastic sealing bag produce in length extension device 2
Raw upward buoyancy, lifts the inwall of length extension device 2, can offset the gravity of a part of length extension device 2, reduce the totality of blade
Weight, caused vibrations in motion are reduced, improve generating efficiency.The shape of the length extension device 2, coincide with the root of blade 1.
Embodiment two：
Such as Fig. 2 -- shown in 9, Fig. 2 is trunnion axis blower fan wind wheel structure principle front view schematic diagram of the present invention；Fig. 3 is
Trunnion axis blower fan wind wheel structure principle left view schematic diagram of the present invention；Top view is common knowledge, is omitted.The present embodiment is
In the outside of wheel hub 7 of horizontal axis rotor, length extension device 2 is installed, the length extension device 2 is spheroid shape or semielliptical type or any
Wind can be advantageous to blow to the shape of blade, the blade 1 or/and 4 is arranged on the length extension device 2.In the lengthening
The inside of device 2 is provided with one or more confined space devices 3, and the rubber that the confined space device 3 is filled with helium is close
Envelope or plastic sealing bag, it can be substituted or part substitutes original inside stuffing such as cork wood or foamed material or floor.
Fig. 4 is another structural principle front view schematic diagram of trunnion axis blower fan wind wheel of the present invention；Fig. 5 is of the present invention
Another structural principle left view schematic diagram of trunnion axis blower fan wind wheel；Top view is common knowledge, is omitted.The present embodiment is in level
The outside of wheel hub 7 of axle wind energy conversion system, is provided with length extension device 2, and the length extension device 2 is a part or ball for spheroid shape or spheroid shape
A part for type or ball-type or the shape that wind arbitrarily can be advantageous to blow to blade, the blade 1 or/and 4 are arranged on described
On wheel hub 7.One or more confined space devices 3, the confined space device 3 are installed in the inside of the length extension device 2
It is filled with the rubber seal bag or plastic sealing bag of helium.
Fig. 6 is the another structural principle front view schematic diagram of trunnion axis blower fan wind wheel of the present invention；Fig. 7 is of the present invention
The another structural principle left view schematic diagram of trunnion axis blower fan wind wheel；Top view is common knowledge, is omitted.The present embodiment is in level
On the wind wheel of axle wind energy conversion system, length extension device 2 is installed, the length extension device 2 is annular tube shaped, the length extension device and wheel hub phase
Even, the blade 1 or/and 4 is arranged on the length extension device 2.One or more is installed in the inside of the length extension device 2
Confined space device 3, the confined space device 3 are filled with the rubber seal bag or plastic sealing bag of helium.
Fig. 8 is the another structural principle front view schematic diagram of trunnion axis blower fan wind wheel of the present invention；Fig. 9 is of the present invention
The another structural principle left view schematic diagram of trunnion axis blower fan wind wheel；Top view is common knowledge, is omitted.The present embodiment is in level
On the blade of axle wind energy conversion system, length extension device 2 is installed, the length extension device 2 is annular tube shaped, and the blade 1 or/and 4 is installed
On the wheel hub 7.One or more confined space devices 3, the confined space are installed in the inside of the length extension device 2
Device 3 is filled with the rubber seal bag or plastic sealing bag of helium.
Embodiment three：
As shown in Figure 10,11, Figure 10 is the another structural principle front view schematic diagram of trunnion axis blower fan wind wheel of the present invention；
Figure 11 is the another structural principle left view schematic diagram of trunnion axis blower fan wind wheel of the present invention；Top view is common knowledge, is omitted.
In the present embodiment, the length extension device 2 can instead of the effect of wheel hub, the length extension device 2 be ellipsoid or
Part ellipsoidal shape or spherical or part spherical structure；The length extension device 2 is arranged on fan shaft 8, in the length extension device 2
In structure, one group of long fan blade 1 or 4 is installed, before the length extension device 2, one group short fan blade 9 is installed.
The present embodiment to be mounted with 3 short fan blades, the length of the short fan blade 9 be less than long fan blade 1 or
4；The small wind wheel can reduce the amount wind speed of wind-driven generator, improve generating efficiency, can reduce resistance wind again to tower bar
Push over torque.
Example IV：
As shown in Figure 12,13, Figure 12 is the another structural principle front view schematic diagram of trunnion axis blower fan wind wheel of the present invention；
Figure 13 is the another structural principle left view schematic diagram of trunnion axis blower fan wind wheel of the present invention；Top view is common knowledge, is omitted.
In the present embodiment, the length extension device 2 is circular ring；The length extension device 2 is arranged on fan shaft 8 or wheel hub
On 7, in the structure of the length extension device 2, one group of long fan blade 1 or 4 is installed, before the length extension device 2, installation
One group short fan blade 9.The length extension device 2 can also be arranged on long fan blade 1 and 4.
The present embodiment to be mounted with 3 short fan blades, the length of the short fan blade 9 be less than long fan blade 1 or
4；The small wind wheel can reduce the amount wind speed of wind-driven generator, improve generating efficiency, can reduce resistance wind again to tower bar
Push over torque.
Claims (10)
1. a kind of layer-stepping blower fan wind wheel, include the wind wheel of fan shaft, wheel hub and at least one long fan blade composition, it is special
Sign is, on the wind wheel of the long fan blade composition, is provided with least one short fan blade or short fan blade composition
Small wind wheel.
2. a kind of layer-stepping blower fan wind wheel according to claim 1, it is characterized in that, the short fan blade or the installation of small wind wheel
On the wheel hub of long fan blade.
3. a kind of layer-stepping blower fan wind wheel according to claim 1, it is characterized in that, the small wind wheel of the short fan blade composition
It is mounted in before big wind wheel.
4. a kind of layer-stepping blower fan wind wheel according to claim 1, it is characterized in that, have at least one on the wind wheel or blade
Individual length extension device, inside or outside the length extension device, install or be provided with confined space device；In the confined space
The gas that density is less than air is filled in device.
5. a kind of layer-stepping blower fan wind wheel according to claim 1, it is characterized in that, have at least one on the wind wheel or blade
Individual length extension device, the length extension device can substitute wheel hub.
6. a kind of layer-stepping blower fan wind wheel according to claim 1, it is characterized in that, in the inside or outer of the wind wheel or blade
Portion, install or be provided with confined space device；The gas that density is less than air is filled in the confined space device, or in institute
It is rarefied air to state in confined space device.
7. according to a kind of layer-stepping blower fan wind wheel of claim 1 or 4, it is characterized in that, have on the wind wheel or blade to
A few length extension device, the blade are mounted on the length extension device；Being between the length extension device and fan blade can
Flexible, control system, length extension device and blade are included on the wind wheel with length extension device, the control system connects leaf
Piece or length extension device, the control system can will stretch out blade in vanes retract to length extension device or out of length extension device, make
Blade shortens or increased.
8. according to a kind of layer-stepping blower fan wind wheel of claim 1 or 4, it is characterized in that, the wind wheel or blade are trunnion axis
Wind wheel or blade, outside the wheel hub of horizontal axis rotor or on fan shaft, length extension device is installed, the length extension device is ellipsoid
Type or one of spheroid shape or the part or annular shape or arbitrary shape of ball-type or ball-type, the long fan blade are arranged on institute
State on length extension device or wheel hub；One or more confined space devices are installed in the inside of the length extension device；The short wind
Machine blade is arranged on before the length extension device.
9. a kind of wind energy conversion system using layer-stepping blower fan wind wheel, including fan shaft, wheel hub and at least one long fan blade group
Into wind wheel, generator system, it is characterized in that, on the wind wheel of the long fan blade composition, at least one short wind is installed
The small wind wheel of machine blade or short fan blade composition.
10. a kind of wind energy conversion system using layer-stepping blower fan wind wheel according to claim 9, it is characterized in that, the short blower fan leaf
Piece or small wind wheel are arranged on the small wind wheel that on the wheel hub of long fan blade or the short fan blade forms and are mounted in big wind wheel
Before；Or have at least one length extension device on the wind wheel or blade, and inside or outside the length extension device, installation
Or confined space device is provided with, the gas that density is less than air is filled in the confined space device；Or in the wind wheel
Or having at least one length extension device on blade, the length extension device can substitute wheel hub；Or in the inside of the wind wheel or blade
Or it is outside, install or be provided with confined space device；The gas that density is less than air is filled in the confined space device；Or
There is at least one length extension device on the wind wheel or blade, the blade is mounted on the length extension device；The lengthening
Telescopic between device and fan blade, on the wind wheel with length extension device include control system, length extension device and
Blade, control system connection blade or length extension device, the control system can by vanes retract to length extension device or
Blade is stretched out out of length extension device, blade is shortened or is increased；Or the wind wheel or blade are horizontal axis rotor or blade, in water
Outside the wheel hub of flat axle wind wheel or on fan shaft, length extension device is installed, the length extension device is the one of spheroid shape or spheroid shape
A part or annular shape or arbitrary shape for portion or ball-type or ball-type, the long fan blade are arranged on the length extension device or wheel
On hub；One or more confined space devices are installed in the inside of the length extension device；The short fan blade is arranged on institute
State before length extension device.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016111726675 | 2016-12-18 | ||
| CN201611172667.5A CN106382185A (en) | 2016-12-18 | 2016-12-18 | Extension type fan wind wheel or blade and wind driven generator |
| CN2017101624398 | 2017-03-18 | ||
| CN201710162439 | 2017-03-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207212580U true CN207212580U (en) | 2018-04-10 |
Family
ID=59210117
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710235238.6A Pending CN107061190A (en) | 2016-12-18 | 2017-04-12 | A kind of blower fan wind wheel or blade and wind energy conversion system with length extension device |
| CN201720460931.9U Expired - Fee Related CN207212580U (en) | 2016-12-18 | 2017-04-28 | A kind of layer-stepping blower fan wind wheel and the wind energy conversion system using layer-stepping blower fan wind wheel |
| CN201710291446.8A Pending CN106907293A (en) | 2016-12-18 | 2017-04-28 | A kind of layer-stepping blower fan wind wheel and the wind energy conversion system using layer-stepping blower fan wind wheel |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710235238.6A Pending CN107061190A (en) | 2016-12-18 | 2017-04-12 | A kind of blower fan wind wheel or blade and wind energy conversion system with length extension device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710291446.8A Pending CN106907293A (en) | 2016-12-18 | 2017-04-28 | A kind of layer-stepping blower fan wind wheel and the wind energy conversion system using layer-stepping blower fan wind wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN107061190A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907293A (en) * | 2016-12-18 | 2017-06-30 | 孟英志 | A kind of layer-stepping blower fan wind wheel and the wind energy conversion system using layer-stepping blower fan wind wheel |
| CN109372709A (en) * | 2018-11-27 | 2019-02-22 | 合肥鸿叶紫新能源有限公司 | A kind of high-efficiency wind driven generator |
| 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 |
| EP3985246A1 (en) * | 2020-10-13 | 2022-04-20 | Université d'Aix-Marseille | Method for accelerating the destruction of helical vortices in the wake of a rotor of a wind turbine in a wind farm |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113378330B (en) * | 2021-07-15 | 2023-09-08 | 河海大学 | Calculation method for effective wind sweeping radius of ultra-long flexible downwind direction wind turbine blade |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100397030B1 (en) * | 2001-04-03 | 2003-09-03 | (주)코에지 | A rotor blade of a wind power generator, and the forming method thereof |
| CA2703587A1 (en) * | 2008-01-30 | 2009-08-06 | James G.P. Dehlsen | Retractable blade structure with a split trailing edge |
| KR20130067436A (en) * | 2011-12-14 | 2013-06-24 | 두산중공업 주식회사 | Multi type wind turbine with sub blade |
| CN107061190A (en) * | 2016-12-18 | 2017-08-18 | 孟英志 | A kind of blower fan wind wheel or blade and wind energy conversion system with length extension device |
-
2017
- 2017-04-12 CN CN201710235238.6A patent/CN107061190A/en active Pending
- 2017-04-28 CN CN201720460931.9U patent/CN207212580U/en not_active Expired - Fee Related
- 2017-04-28 CN CN201710291446.8A patent/CN106907293A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907293A (en) * | 2016-12-18 | 2017-06-30 | 孟英志 | A kind of layer-stepping blower fan wind wheel and the wind energy conversion system using layer-stepping blower fan wind wheel |
| CN109372709A (en) * | 2018-11-27 | 2019-02-22 | 合肥鸿叶紫新能源有限公司 | A kind of high-efficiency wind driven generator |
| 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 |
| EP3985246A1 (en) * | 2020-10-13 | 2022-04-20 | Université d'Aix-Marseille | Method for accelerating the destruction of helical vortices in the wake of a rotor of a wind turbine in a wind farm |
| WO2022078883A1 (en) * | 2020-10-13 | 2022-04-21 | Université D'aix-Marseille | Method for accelerating the destruction of helical vortices in the wake of a rotor of a wind turbine in a wind farm |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106907293A (en) | 2017-06-30 |
| CN107061190A (en) | 2017-08-18 |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180410 Termination date: 20210428 |