CN107061144A - 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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- CN107061144A CN107061144A CN201710214222.7A CN201710214222A CN107061144A CN 107061144 A CN107061144 A CN 107061144A CN 201710214222 A CN201710214222 A CN 201710214222A CN 107061144 A CN107061144 A CN 107061144A
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- Prior art keywords
- blade
- length extension
- wind wheel
- extension device
- blower fan
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 9
- 239000000203 mixture Substances 0.000 claims description 10
- 241001075561 Fioria Species 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 24
- 239000000463 material Substances 0.000 description 15
- 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
- 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
- 238000007664 blowing Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000033001 locomotion 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
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
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- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 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
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/06—Rotors
- F03D3/062—Rotors characterised by their construction elements
-
- 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
- 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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
Abstract
The invention provides a kind of layer-stepping blower fan wind wheel and the wind energy conversion system of utilization 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 present invention also has Anti-Typhoon ability.
Description
Technical field
The invention belongs to technical field of wind energy utilization, wind-powered machine and technical field of wind power generation are especially adapted for use in.
Background technology
Current horizontal axis propellers formula wind energy conversion system is, with 2 blades or 3 leaf structures, generator shaft to be arranged on by blade mostly
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 low wind speed wind field requirement, it is necessary to
The length of blade is continuously increased, and is increased after length of blade, the anti-high wind ability of blower fan has declined again；Therefore, invent 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 improving the wind energy profit of root of blade
Extremely it is necessary with the wind-driven generator of efficiency.
The content of the invention
It is an object of the invention to provide a kind of utilization breeze start-up and can resist again high wind and meanwhile improve root of blade wind
The wind-driven generator of energy utilization ratio.Meanwhile, the present invention can also provide a kind of wind wheel or blade with growing apparatus, described to add
Growth device be it is a kind of can for increase rotor diameter or can for increase length of blade device.Ultra-large type wind can be developed
Power generator.
Present invention utilizes the fan blade of two kinds of different lengths, describe for convenience, present invention definition：Normal length
Fan blade is referred to as long fan blade, the shorter referred to as short fan blade of another length.
A kind of layer-stepping blower fan wind wheel, includes the wind wheel of fan shaft, wheel hub and at least one long fan blade composition, its
It is characterized in that on the wind wheel of the long fan blade composition, at least one short fan blade is installed.
The short fan blade is on the wheel hub of long fan blade or the fan shaft before it.
It is preferred that, the short fan blade is multiple.It is preferred that, the short fan blade is 2--9.
It is preferred that, the short fan blade is to be arranged on same wheel hub to form a length layering with long fan blade
Wind wheel structure.
It is preferred that, the short fan blade is on another separately installed wheel hub, to form double wind wheel structure.
It is preferred that, the small wind wheel of the short fan blade composition is mounted in before big wind wheel.
It is preferred that, wind wheel of the present invention can also select blower fan wind wheel or blade with length extension device, the lengthening dress
Put be it is a kind of can for increase rotor diameter or can for increase length of blade device.
It is preferred that, 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, can use any materials, including flexible material or hard material.
The length extension device, including housing and the confined space device of inside.
The density is less than the gas of air, refers to that all relative molecular weights are less than the density of 29 gas, both less than sky
The density of gas, for example, hydrogen, helium, neon, nitrogen, carbon monoxide, methane, hydrogen fluoride, acetylene etc..
It is preferred that, 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, so can both overcome and the shortcoming that hydrogen is easily ignited is used alone, and can also reduce cost, can also reach me
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 mixture of the gas that density is less than air, such as 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
Stating buoyancy will offset or the downward gravity of the whole length extension device of partial offset, so that the weight of length extension device is reduced, when described
When confined space device volume is sufficiently large, when the buoyancy produced by it is more than length extension device downward gravity, the length extension device
Weight be zero or negative value.It so can increase the diameter of wind wheel or the length of blade, overall wind wheel can also be mitigated
Weight.
When the confined space device uses hard material, it has two kinds of selections, you can be 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, forms 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 that support body material is reduced, the weight of reduction length extension device in itself.
We are drawn a conclusion by substantial amounts of calculating and simulated experiment, 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 housing in itself, in the enclosure interior, set certain
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.
It is preferred that, fan blade of the present invention is mounted on the length extension device.The length extension device and fan blade it
Between be telescopic, on the blower fan wind wheel with length extension device or blade include control system, length extension device and blade, its
It is characterized in, the control system connection blade or length extension device, the control system can be by vanes retract to length extension device
Or blade is stretched out out of length extension device, blade is shortened or is increased.
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 is not enough, signal receiver can receive size and the direction of wind-force, be transmitted to controller, and controller can
To control leaf elongation to most long position by power set, wind energy can be utilized to greatest extent；When wind-force exceedes specified wind
When fast, controller can control vanes retract to certain position by power set, power output is reached maximum；Can be by leaf
The most short Position Design of piece can be after to that can be retracted to most short position with Anti-Typhoon position, when typhoon completely, still
Continuous work.For example：If a common blower fan of 1.5 megawatts, length of blade is 36 meters, when typhoon, can only be by becoming
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 be greatly improved, it is possible to worked in typhoon, made 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, can use motor power, it would however also be possible to employ hydraulic power unit or any known power
Device.
Signal receiver of the present invention can also receive the positional information of blade rotation, can be rotated to not according to blade
The distance of same position, any regulation vanes retract or 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, and 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 simultaneously be shunk.
The length extension device can be independent or blade a part.The telescopic position, Ke Yishi
In the root of blade or the tip or optional position in blade.The length extension device, may be mounted on wheel hub or wind
Optional position on machine.The wind wheel, can include blade connecting rod.
It is preferred that, the small wind wheel of the short fan blade composition is mounted in before the length extension device or structural plane
On.
The shape of the length extension device, can use arbitrary shape, it is preferred that can make and corresponding fan blade phase
Together.
It is preferred that, 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 of utilization 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 are 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 blower fan by using layer-stepping blower fan wind wheel
Threshold wind velocity and rated wind speed, improve the generating efficiency of blower fan, so that the purpose of breeze start-up blower fan is reached, meanwhile, utilize
Blower fan wind wheel advantage with length extension device, can effectively increase the length of rotor diameter or blade, can provide a kind of super
The blade of large-scale 200 meters of diameter above or more than 100 meters length, and more than 10 megawatts wind-driven generators, the length extension device,
The overall weight of wind wheel can not be increasedd or decreased while length is increased.
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
The wheel hub 8 of 146 generator system of long 5 tower bar of fan blade of long 2 length extension device of fan blade, 3 confined space device 7
The short fan blade of fan shaft 9
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；Pacify in the root of the blade 1
Equipped with length extension device 2, 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, and it can be substituted or part substitutes original inside stuffing
Such as cork wood or foamed material or floor.When blade movement, rubber seal bag or plastic sealing bag produced in length extension device 2 to
On buoyancy, lift the inwall of length extension device 2, can offset the gravity of a part of length extension device 2, reduce the total weight of blade
Amount, the vibrations produced in reduction motion, improves 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 this hair
The bright trunnion axis blower fan wind wheel structure principle left view schematic diagram；Top view is common knowledge, is omitted.The present embodiment is in water
The outside of wheel hub 7 of flat axle wind wheel, is provided with length extension device 2, and the length extension device 2 is spheroid shape or semielliptical type or arbitrarily can be with
Wind is conducive to blowing to the shape of blade, the blade 1 or/and 4 is arranged on the length extension device 2.In the length extension device 2
Inside one or more confined space devices 3 are installed, the confined space device 3 be filled with helium rubber seal bag 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
Wind arbitrarily can be conducive to blowing to the shape of blade by a part for type or ball-type, and the blade 1 or/and 4 is 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.It is provided with the inside of the length extension device 2 one or more
Confined space device 3, the confined space device 3 is 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 level of the present invention
The another structural principle left view schematic diagram of axle blower fan wind wheel；Top view is common knowledge, is omitted.The present embodiment is in trunnion axis wind
On the blade of power machine, length extension device 2 is installed, the length extension device 2 is annular tube shaped, and the blade 1 or/and 4 is arranged on institute
State on wheel hub 7.One or more confined space devices 3, the confined space device are installed in the inside of the length extension device 2
3 are 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
It 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
It 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, installed
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, includes the wind wheel of fan shaft, wheel hub and at least one long fan blade composition, it is special
Levying is, on the wind wheel of the long fan blade composition, is provided with least one short fan blade.
2. a kind of layer-stepping blower fan wind wheel according to claim 1, it is characterized in that, the short fan blade is arranged on long blower fan
On the wheel hub of 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, installs or is provided with confined space device；In the confined space
The gas that density is less than air is filled in device, or in the confined space device is rarefied air.
5. a kind of layer-stepping blower fan wind wheel according to claim 1, it is characterized in that, 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, installs or is 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. a kind of layer-stepping blower fan wind wheel according to any one of preceding claims claim, it is characterized in that, it is described
Blade is mounted on the length extension device；It is telescopic between the length extension device and fan blade, is lengthened in the band
Include control system, length extension device and blade, the control system connection blade or length extension device, the control on the blower fan of device
System processed can will stretch out blade in vanes retract to length extension device or out of length extension device, blade is shortened or is increased.
8. a kind of layer-stepping blower fan wind wheel according to any one of preceding claims claim, it is characterized in that, it is described
Wind wheel or blade are horizontal axis rotor or blade, outside the wheel hub of horizontal axis rotor or on fan shaft, are provided with length extension device,
The length extension device is a part or circular or arbitrary shape for spheroid shape or one of spheroid shape or ball-type or ball-type, described
Long fan blade is arranged on the length extension device or wheel hub；It is provided with the inside of the length extension device one or more closed
Room device；The short fan blade is arranged on before the length extension device.
9. a kind of wind energy conversion system of utilization 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
Machine blade.
10. a kind of wind energy conversion system of utilization layer-stepping blower fan wind wheel according to claim 9, it is characterized in that, the short blower fan leaf
Piece is arranged on the small wind wheel that on the wheel hub of long fan blade or the short fan blade is constituted and is mounted in before big wind wheel；Or
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, fills the gas that density is less than air in the confined space device, or in the confined space device
It is inside rarefied air；Or the length extension device can substitute wheel hub；Or inside or outside the wind wheel or blade, install or
It is provided with confined space device；The gas that density is less than air is filled in the confined space device, or in the confined air
Between be rarefied air in device；Or the blade is mounted on the length extension device；The length extension device and fan blade it
Between be telescopic, on the blower fan with length extension device include control system, length extension device and blade, the control system
Blade or length extension device are connected, the control system can will stretch out leaf in vanes retract to length extension device or out of length extension device
Piece, makes blade shorten or increase；Or the wind wheel or blade are horizontal axis rotor or blade, outside the wheel hub of horizontal axis rotor
Or on fan shaft, length extension device is installed, the length extension device is the one of spheroid shape or one of spheroid shape or ball-type or ball-type
Part or circular or arbitrary shape, the long fan blade are arranged on the length extension device or wheel hub；Dress is lengthened described
The inside put is provided with one or more confined space devices；The short fan blade is arranged on before the length extension device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710214222.7A CN107061144A (en) | 2017-04-01 | 2017-04-01 | A kind of layer-stepping blower fan wind wheel and the wind energy conversion system using layer-stepping blower fan wind wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710214222.7A CN107061144A (en) | 2017-04-01 | 2017-04-01 | A kind of layer-stepping blower fan wind wheel and the wind energy conversion system using layer-stepping blower fan wind wheel |
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| CN107061144A true CN107061144A (en) | 2017-08-18 |
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| CN201710214222.7A Pending CN107061144A (en) | 2017-04-01 | 2017-04-01 | A kind of layer-stepping blower fan wind wheel and the wind energy conversion system using layer-stepping blower fan wind wheel |
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| CN (1) | CN107061144A (en) |
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Application publication date: 20170818 |