CN109026547A - A kind of wind electricity generating system and its application - Google Patents
A kind of wind electricity generating system and its application Download PDFInfo
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- CN109026547A CN109026547A CN201811095951.6A CN201811095951A CN109026547A CN 109026547 A CN109026547 A CN 109026547A CN 201811095951 A CN201811095951 A CN 201811095951A CN 109026547 A CN109026547 A CN 109026547A
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- 230000005611 electricity Effects 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 description 28
- 238000010248 power generation Methods 0.000 description 12
- 230000008901 benefit Effects 0.000 description 10
- 238000007667 floating Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 239000001307 helium Substances 0.000 description 7
- 229910052734 helium Inorganic materials 0.000 description 7
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 7
- 230000009471 action Effects 0.000 description 5
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- 238000005516 engineering process Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
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- 230000000694 effects Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000002775 capsule Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
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- 238000005859 coupling reaction Methods 0.000 description 2
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- 230000035939 shock Effects 0.000 description 1
- 238000012876 topography Methods 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
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
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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
- F03D1/04—Wind motors with rotation axis substantially parallel to the air flow entering the rotor having stationary wind-guiding means, e.g. with shrouds or channels
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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
- F03D1/0608—Rotors characterised by their aerodynamic shape
- F03D1/0625—Rotors characterised by their aerodynamic shape of the whole rotor, i.e. form features of the rotor unit
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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
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Power Engineering (AREA)
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Abstract
The present invention relates to a kind of wind electricity generating system and its applications, including external air hood, generator, turbine and current divider；One end of external air hood is air inlet, the other end is air outlet, and air inlet bore >=air outlet bore, current divider are in divergent structure from head to tail portion, current divider is at least a part of to be arranged in external air hood, turbine is mounted on the surface or back of current divider, and turbine is connect with generator drive gear.Wind electricity generating system of the present invention creatively introduces current divider, it raises speed again to the natural wind for entering fan housing, natural wind after speed-raising can be utilized in maximum efficiency, convert the wind energy of natural wind to the full extent the mechanical energy of turbine, in the case where same air quantity, generated energy is increased, fan housing increases the deployment range of electricity generation system but also as the support of internal generating equipment.
Description
Technical field
The present invention relates to a kind of wind electricity generating system and its applications, belong to technical field of wind power generation.
Background technique
Wind energy is as a kind of clean energy resource, and wind energy is inexhaustible, nexhaustible, in recent decades, is sent out using wind energy
Electricity has become one of important way of power source, while comparing other generation modes, and wind power generation has construction maintenance cost
Low, installation, which is built, the advantages such as facilitates.
Conventional wind generating equipment usually requires to increase impeller to increase generated energy, and impeller is usually huge and needs one
Construction, transport require certain cost with deployment.Impeller is huge to require height to the strength of materials, and can not directly be deployed in height
It is empty.
But wind power generation is efficiently utilized, satisfactory wind speed is needed, often low wind speed is to be unable to reach power generation to want
It asks, this is why wind energy generator car will generally be built on mountain, on air port, because high aerial wind speed is much higher than ground,
And wind speed is less subject to topography and geomorphology influence, wind energy is stablized, therefore the wind energy concentration in high-altitude is much higher than ground, can be low latitude wind energy
Ten times to hundred times of density, and high altitude wind energy is utilized to generate electricity at present still in the exploratory stage.
It is summed up, can be divided into three categories using high altitude wind energy generation technology:
One kind is acted on using lift such as helium balloon, fire balloon, dirigibles, generator is raised in the air, in high aerial benefit
It is mechanical energy with wind energy transformation abundant, mechanical energy is converted into electric energy, passes to ground power grid by cable later.
The defect of such technology path is mainly that generated output is restricted, and generator power increases, and weight generally can also increase
Add, lift-off difficulty increases；Further, since system is integrally heavier, generating set is difficult to be raised to the height of km or more, simultaneously as
Electricity generation system, which is located at high-altitude, to be boosted by transformer, certainly will be transmitted electricity using high current in high-power situation, so must make
With the conducting wire that diameter is thicker, this undoubtedly increases the weight of whole system again.In addition promotion of the helium balloon with lift-off height, sky
Air tightness declines, the decline of buoyancy suffered by helium balloon.These reasons limit the corporate device lifting height of such technology path, and
And the wind power equipment lift-off height of balloon class Technology Ways is distributed in the range of 300 to 500 meters more；In addition, filling helium needs
Cost, helium balloon are more demanding for the material of air bag, to prevent helium from excessively leaking.
Another kind of Technology Ways are that generating set is fixed on ground, by huge " kite " or Fixed Wing AirVehicle,
Terrestrial power generation unit is pulled to drive the generator on ground to be converted into electricity to convert wind energy into mechanical energy using wind energy in the air
Can, to solve the problems, such as the self weight of cable and generator.
Third class is to be tethered at the gyroplane in ground with hawser, and rotor provides lift for whole device and generates electricity.The party
Formula is actually one and stops skyborne generation platform, and multiple conventional rotors are mounted with above.Rotor when wind speed is high,
It generates electricity and lift is provided；When wind speed is lower, the lift that gyroplane generates is insufficient to allow power generator to rise in the sky, can pass through
Power cable is from ground system-oriented power transmission, to make gyroplane run in a manner of electric helicopter, to generate enough lift.It rises
When dropping operation, offer lift is equally run in a manner of electric helicopter.This kind of mode advantages, but the cost is relatively high.
But these current high-altitude power generation devices, have that structure is complicated, and maintenance cost is high, single power generator wind energy utilization
Low problem generally requires the method by increasing power generator quantity to improve generated energy.Therefore, it is necessary to design a kind of knot
The wind energy electrification device that structure is relatively easy, wind energy utilization is high.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of wind electricity generating system, which can be in current existing skill
On the basis of art, the utilization rate of wind energy is improved, in the case where same wind-force, wind-power electricity generation amount can be increased, especially applied
When carrying out wind power generation to high-altitude, there is higher generating efficiency.
The present invention also provides a kind of working methods of wind electricity generating system.
Term is explained:
Gas leads to area, and referring to can allow air-flow to pass through between the area or current divider and fan housing that allow air-flow to pass through in fan housing
Cross section area.
Technical scheme is as follows:
A kind of wind electricity generating system, including external air hood, generator, turbine and current divider；One end of external air hood is air inlet
Mouth, the other end are air outlet, and air inlet bore >=air outlet bore, current divider are in divergent structure from head to tail portion, are shunted
Device is at least a part of to be arranged in external air hood, and turbine is mounted on the surface or back of current divider, and turbine and generator pass
Dynamic connection.
Preferably, the shape of the external air hood includes cylinder-shaped, truncated cone-shaped.
Preferably, the shape of the current divider includes cone, truncated cone-shaped, round end taper.
Preferably, the current divider is connect by heavy frame with external air hood.
Preferably, the generator is mounted in current divider.This design is advantageous in that, it is compact can to increase power generation part
Degree reduces the loss in fan housing without work device to wind-force.
Preferably, the current divider is integrally provided in external air hood and the head of current divider is towards air inlet, tail portion direction
Air outlet.The benefit of this design is the whole wind-force that in external air hood, can prevent distinguished and admirable impulse current shunt from being rebounded of current divider
It flows to outside external air hood, external air hood can also play the role of better masking, protection to current divider.
Preferably, the generator is mounted on splitter nose.This design is advantageous in that generator is mounted on current divider
The gravity balance so that whole system is disposed by adjusting position in front.
Preferably, the turbine is located in external air hood.The advantage of this design is, turbine is mounted on external air hood
It is interior, it avoids distinguished and admirable fleeing from out of fan housing before doing work to fan blade.
Preferably, in external air hood, the gas before turbine machine blade leads to area and is greater than the logical area of gas flowed through at fan blade.This
Design is advantageous in that, for guaranteeing that distinguished and admirable wind speed when by fan blade is maximum.
Preferably, the impeller diameter of the turbine is at least the half of turbine section diameter.
Preferably, the impeller diameter of the turbine is at least 2/3rds of turbine section diameter.
Preferably, the air inlet front face area of the external air hood is at least 4 times of the most narrow place's front face area of external air hood.This sets
The benefit of meter is, in the case where not changing fan blade diameter, increases the front face area of power generator.
Preferably, the rear end of the turbine is connected with a rectifier, and rectifier is in tapered configuration, the big end of rectifier with
The rear end of turbine connects.This design is advantageous in that, is prevented air-flow from rapidly flowing toward the center of circle after afterbody fan blade and is formed
Flow back whirlpool.
Preferably, the outer surface of the external air hood is provided with pressurization air bag and air compressor machine, and pressurization air bag is located at upper surface, empty
Press is located at lower surface, and pressurization air bag is connect with air compressor machine.This design is advantageous in that, can adjust pressurization at any time by air compressor machine
The air pressure of air bag is pressurized air bag to increase system stiffness, prevents fan housing from collapsing.Air compressor machine is arranged below external air hood, to
It prevents fan housing along axial-rotation, increases system stability.
Preferably, when turbine includes multistage fan blade, rear stage fan blade outer diameter is greater than previous stage fan blade outer diameter.This design
Advantage be, due to gas diffusivity with turbine rotate bring centrifugal action, make by the distinguished and admirable separate of turbine
Its rotation center, gradually big multistage fan blade more can be such that rear stage fan blade caters to by the distinguished and admirable of previous stage fan blade.
Preferably, when turbine includes multistage fan blade, rear stage impeller diameter is greater than previous stage impeller diameter.This design
It is advantageous in that, agrees with impeller more with current divider, while can also flow through rear stage in the case where not changing external air hood
Gas at fan blade leads to area and is less than the logical area of gas flowed through at previous stage fan blade.
Preferably, area is led to by the gas that external air hood surrounds there are also one section after turbine afterbody fan blade and is greater than fan blade
Gas leads to the outer diffuser space of area at section.The benefit of this design is that the outer diffuser space of this section can prevent outside air from filling from side
This space forms relative to the negative pressure at fan blade section, further increases the wind speed at fan blade section.
A kind of wind electricity generating system, including preceding fan housing, rear air cover, generator, turbine and current divider；One end of preceding fan housing
It is air outlet for air inlet, the other end, and air inlet bore >=air outlet bore of preceding fan housing, one end of rear air cover are air inlet
Mouth, the other end are air outlet, and air inlet bore≤air outlet bore of rear air cover, the air inlet of rear air cover go out with preceding fan housing
Air port connection, current divider are in divergent structure from head to tail portion, and current divider is at least a part of to be arranged in rear air cover, turbine
Be mounted on current divider surface or back and be located at rear air cover air inlet after, turbine is connect with generator drive gear.
Preferably, the shape of the preceding fan housing and rear air cover includes cylinder-shaped, truncated cone-shaped.
Preferably, the junction of the preceding fan housing and rear air cover is smooth arc transition.This design is advantageous in that, in wind
Cover is internal, and when air-flow passes through slot, guarantee is uniform to the change of air-flow, smooth, reduces distinguished and admirable resistance to the full extent.
Preferably, the shape of the current divider includes cone, truncated cone-shaped, round end taper.
Preferably, the current divider is connect by heavy frame with preceding fan housing or rear air cover.
Preferably, the head of the current divider is located at air inlet of in the rear air cover and head of current divider towards rear air cover.
This design is advantageous in that current divider is integrally entirely located in after slot (junction of preceding fan housing and rear air cover) (i.e. in rear wind
In cover), slot can reduce angle of the air-flow to current divider impact when with not having current divider then before slot, reduce gas shock
Energy loss caused by current divider, more effectively air-flow does work to turbine.
Preferably, the turbine is located in rear air cover.This design is advantageous in that, avoids distinguished and admirable doing work it to fan blade
It is preceding to be fled from out of fan housing.
Preferably, the generator is mounted in current divider.This design is advantageous in that, it is compact can to increase power generation part
Degree avoids the loss in fan housing without work device to wind-force.
Preferably, the generator is mounted on splitter nose.This design is advantageous in that, is made by adjusting position deployment
Obtain the gravity balance of whole system.
Preferably, in rear air cover, the gas before turbine machine blade leads to area and is greater than the logical area of gas flowed through at fan blade.This
Design is advantageous in that, for guaranteeing that distinguished and admirable wind speed when by fan blade is maximum.
Preferably, the impeller diameter of the turbine is at least the half of turbine section diameter.
Preferably, the impeller diameter of the turbine is at least 2/3rds of turbine section diameter.
Preferably, 4 times of the most narrow place's front face area of fan housing before the air inlet front face area of the preceding fan housing is at least.This sets
The benefit of meter is, in the case where not changing fan blade diameter, increases the front face area of power generator.
Preferably, the rear end of the turbine is connected with a rectifier, and rectifier is in tapered configuration, the big end of rectifier with
The rear end of turbine connects.This design is advantageous in that, prevents air-flow from rapidly flowing toward turbine circle after afterbody fan blade
It is formed centrally reflux whirlpool.
Preferably, the outer surface of the preceding fan housing and rear air cover is provided with pressurization air bag and air compressor machine, and pressurization air bag is located at
Upper surface, air compressor machine are located at lower surface, and pressurization air bag is connect with air compressor machine.This design is advantageous in that, is adjusted by air compressor machine
It is pressurized the air pressure of air bag, air bag is pressurized to increase system stiffness, prevents fan housing from collapsing.Air compressor machine is arranged below fan housing, uses
To prevent fan housing along axial-rotation, increase system stability.
Preferably, the junction of preceding fan housing and rear air cover is provided with floating air bag, floating air bag is located at upper surface and floats
The edge of air bag is no more than the radial edges of preceding fan housing.This design is advantageous in that, does not increase the additional wind area of fan housing,
And floating air bag is positioned only at external air hood upper surface.This setting increases gravity center eccentric, prevents fan housing from rotating radially along turbine shaft.
Preferably, when turbine includes multistage fan blade, rear stage fan blade outer diameter is greater than previous stage fan blade outer diameter.This design
Advantage be, due to gas diffusivity with turbine rotate bring centrifugal action, make by the distinguished and admirable separate of turbine
Its rotation center, gradually big multistage fan blade more can be such that rear stage fan blade caters to by the distinguished and admirable of previous stage fan blade.
Preferably, when turbine includes multistage fan blade, rear stage impeller diameter is greater than previous stage impeller diameter.This design
It is advantageous in that, impeller is made to agree with the current divider constantly increased, while can also be flowed through in the case where not changing fan housing latter
Gas at grade fan blade leads to area and is less than the logical area of gas flowed through at previous stage fan blade.
Preferably, when turbine includes multistage fan blade, the adjacent fan blade in front and back is oppositely arranged, after previous stage fan blade is
Level-one fan blade wind-guiding.
Preferably, there are distances between the turbine and rear air cover air outlet.This design is advantageous in that, in turbine
The gas that afterbody fan blade is surrounded there are also one section by rear air cover later leads to area and extends out sky greater than the logical area of fan blade section gas
Between, the outer diffuser space of this section can prevent outside air from filling this space from side, be formed relative to the negative pressure at fan blade section, into one
Step increases the wind speed at fan blade section.
A kind of working method of wind electricity generating system, comprising the following steps:
Natural wind enters from the air inlet of external air hood or preceding fan housing, and when by current divider, natural wind is from current divider and exogenous wind
The narrow air duct of cover or rear air cover accelerates to pass through, and then blows and turns positioned at current divider surface or the acting of subsequent turbine, turbine
Electrical power generators are driven after dynamic.
The beneficial effects of the present invention are:
1) wind electricity generating system of the present invention creatively introduces current divider, is interacted gradually by fan housing with current divider
Reduce breathing area, while wind can be guided into turbine machine blade edge by current divider again, (especially to the natural wind into fan housing
High-altitude natural wind) it raises speed again, the natural wind after speed-raising can be utilized in maximum efficiency, and the wind energy of natural wind is maximum
It is converted into the mechanical energy of turbine in degree, in the case where same air quantity, increases generated energy.Fan blade can flexibly be changed again
Wind area of the size without reducing system, external air hood can be used as the support of internal unit again, increase deployment range, such as portion
Administration carries out wind power generation in high-altitude.
2) wind electricity generating system of the present invention is additionally mounted with pressurization air bag, and the rigidity of system can be improved in pressurization air bag, and subtracts
The influence of the small weight to system, can promote the stability of wind electricity generating system, guarantee the continuous of turbine when high altitude operation
High-efficient homework.
3) wind electricity generating system of the present invention leads to area increase using gas is reduced under the premise of not increasing extra cost substantially
The principle of wind speed can greatly improve generating efficiency and generated energy under the operation of wind electricity generating system of the present invention.The present invention
Smart structural design, convenient for installation and maintenance, effect is obvious, significant effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of wind electricity generating system in embodiment 1；
Fig. 2 is the structural schematic diagram of wind electricity generating system in embodiment 2；
Fig. 3 is the structural schematic diagram of wind electricity generating system in embodiment 3；
Fig. 4 is the structural schematic diagram of wind electricity generating system in embodiment 4；
Fig. 5 is the structural schematic diagram of wind electricity generating system in embodiment 5；
Fig. 6 is the structural schematic diagram of wind electricity generating system in embodiment 6；
Fig. 7 is the structural schematic diagram of wind electricity generating system in embodiment 7；
Fig. 8 is the schematic enlarged-scale view of part A in Fig. 6；
Fig. 9 is turbine radial section figure；
Wherein: 1- external air hood；2- current divider；3- generator；4- transmission shaft；5- turbine；Fan housing before 6-；7- rear air cover；
8- is pressurized air bag；9- rectifier；10- fan blade；11- impeller；12- floating air bag；13- air compressor machine.
Specific embodiment
The present invention will be further described by way of example and in conjunction with the accompanying drawings, but not limited to this.
Embodiment 1:
As shown in Figure 1, the present embodiment provides a kind of wind electricity generating system, including external air hood 1, generator 3,5 and of turbine
Current divider 2；One end of external air hood 1 is air inlet, the other end is air outlet, and air inlet bore is equal to air outlet bore, this reality
Applying in example external air hood 1 is a cylindrical shape, and current divider 2 is in divergent structure from head to tail portion, the head of current divider 2 towards into
Air port, generator 3 are mounted in current divider 2, and turbine 5 is mounted on the tail portion of current divider 2 and is close to current divider tail portion (turbine
Also may be mounted at the surface of current divider, the present embodiment is only set forth in the situation of tail portion), turbine 5 and the transmission of generator 3 connect
It connects.
In the present embodiment, the shape of current divider 2 is cone, and the vertex of a cone bores bottom towards exogenous wind towards the air inlet of external air hood 1
The air outlet of cover 1.The transmission shaft of turbine 5 passes through the input axis connection of shaft coupling and generator 3.Current divider 2 is not with turbine
It rotates and passes through heavy frame and be fixedly connected with the inner wall of external air hood 1, heavy frame is the support frame connected by strut, and heavy frame is to lead
Wind structure is conducive to distinguished and admirable flowing, an arrow path is formed between current divider 2 and external air hood, such structure can play logical
It crosses external air hood 1 and while current divider 2 accelerates wind-force, wind-force is guided into the periphery of turbine, wind-force is from the periphery of turbine
More high-torque can be obtained when to fan blade effect, be converted into the mechanical energy of turbine with making wind energy higher efficiency.
In external air hood 1, the gas before 5 fan blade of turbine leads to area and is greater than the logical area of gas flowed through at fan blade.Turbine 5
Rear end be connected with a conical rectifier 9.Turbine 5 includes multistage fan blade, and the outer diameter of rear stage fan blade is greater than previous stage fan blade,
Adjacent front stage fan blade is oppositely arranged (previous stage fan blade is that rear stage fan blade plays the role of wind-guiding), and rear stage fan blade
Impeller is greater than the impeller of previous stage fan blade.
Turbine, generator select conventional equipment, and generator is connected in current divider by bracket, and generator is logical
Cross conventional power generation output equipment output power.
The present embodiment technical solution, creatively devises current divider, and wind-force raises speed under the action of current divider, design
Current divider also can increase wind speed by the reduction to breathing area even without external air hood is gradually reduced.
Embodiment 2:
As shown in Fig. 2, a kind of wind electricity generating system, structure is as described in Example 1, the difference is that: current divider 2
Shape is truncated cone-shaped, the air inlet of the upper bottom of minor radius towards external air hood 1.
The tail portion of current divider 2 is connected at turbine wheel, and the tail diameter of current divider 2 is the two of turbine section diameter
/ mono-.
Embodiment 3:
As shown in figure 3, a kind of wind electricity generating system, structure is as described in Example 1, the difference is that: external air hood 1
Air inlet bore is greater than air outlet bore, and the front face area of the air inlet of external air hood is 4 times of the most narrow place's front face area of external air hood,
The shape of external air hood 1 is a truncated cone-shaped.Natural wind enters from bigbore air inlet, gradually flows to small-bore air outlet mouth
Diameter, this tapered configuration can further promote wind speed, and wind-force higher blows turbine machine blade.Diminishing external air hood simultaneously
The diameter of turbine machine blade can be reduced under the premise of not reducing wind area.
The shape of current divider 2 is round end taper, and the vertex of a cone is circular arc, is more advantageous to distinguished and admirable guiding, reduces distinguished and admirable resistance.
Embodiment 4:
As shown in figure 4, a kind of wind electricity generating system, structure is as described in Example 3, the difference is that: current divider 2
Shape is truncated cone-shaped, the air inlet of the upper bottom of minor radius towards external air hood 1.
The outer surface of external air hood 1 is provided with pressurization air bag and air compressor machine (not shown), and pressurization air bag is located at external air hood
Upper surface, air compressor machine are located at external air hood lower surface, and pressurization air bag is connect with air compressor machine.Pressurization gas can be adjusted at any time by air compressor machine
The air pressure of capsule is pressurized air bag to increase system stiffness, prevents fan housing from collapsing.
Embodiment 5:
As shown in figure 5, the present embodiment provides a kind of wind electricity generating system, including preceding fan housing 6, rear air cover 7, generator 3, whirlpool
Turbine 5, current divider 2；One end of preceding fan housing 6 is air inlet, the other end is air outlet, and the air inlet bore of preceding fan housing is greater than
Air port bore, one end of rear air cover 7 is air inlet, the other end is air outlet, and the air inlet of rear air cover 7 and preceding fan housing 6 go out
Air port connection, current divider 2 are in divergent structure from head to tail portion, and current divider 2 is integrally located in rear air cover, the head of current divider 2
Towards the air inlet of rear air cover 7, generator 3 is mounted in current divider 2, and turbine 5 is mounted on the tail portion of current divider 2 and is close to divide
Device tail portion is flowed, turbine 5 and generator 3 are sequentially connected.
In the present embodiment, preceding fan housing 6 is in truncated cone-shaped, and rear air cover 7 is cylindrical shape, and the air inlet bore of rear air cover 7 is with before
The air outlet bore of fan housing 6 is consistent, and rear air cover 7 and preceding fan housing 6 are seamlessly connected, and the junction of preceding fan housing 6 and rear air cover 7 is flat
Sliding arc transition, as shown in Figure 8.Current divider 2 is in cone, air inlet of the vertex of a cone towards rear air cover 7.The transmission shaft of turbine 5
Pass through the input axis connection of shaft coupling and generator 3.An arrow path is formed between current divider 2 and rear air cover 7, such structure can
It is distinguished and admirable again by (preceding fan housing) air outlet and (rear air cover) air inlet after being accelerated by preceding fan housing 6 to play, and and current divider
While wind-force is accelerated, wind-force is guided to the periphery of turbine 5 into, when wind-force acts on turbine machine blade from the periphery of turbine
More high-torque can be obtained, the mechanical energy of turbine is converted into making wind energy higher efficiency.
Turbine 5 includes multistage fan blade, and rear stage fan blade outer diameter is greater than previous stage fan blade outer diameter, due to the diffusivity of gas
Bring centrifugal action is rotated with turbine, makes the distinguished and admirable rotation center far from it by turbine 5, gradually big multistage fan blade
Rear stage fan blade can more catered to by the distinguished and admirable of previous stage fan blade, while the adjacent fan blade in front and back is oppositely arranged, previous stage
Fan blade is rear stage fan blade wind-guiding.In rear air cover 7, the gas before 5 fan blade of turbine leads to area and is greater than the gas flowed through at fan blade
Logical area, for guaranteeing that distinguished and admirable wind speed when by fan blade is maximum.
The rear end of turbine 5 is connected with a conical rectifier 9, and rectifier 9 is in tapered configuration, the big end of rectifier 9 and whirlpool
The rear end of turbine 5 connects.This setting can prevent air-flow from rapidly flowing toward the turbine center of circle after afterbody fan blade and form reflux
Whirlpool.
Turbine 5, generator 3 select conventional equipment, and generator 3 is connected in current divider 2 by bracket, generator 3
Pass through conventional power generation output equipment output power.
Embodiment 6:
As shown in fig. 6, a kind of wind electricity generating system, structure is as described in Example 5, the difference is that: rear air cover 7
Air inlet bore is less than air outlet bore, is in divergent structure from air inlet to air outlet.Rear air cover 7 and preceding fan housing 6 are in rotary table
Shape, rear air cover 7 are divergent structure, and turbine is mounted in rear air cover, since the diffusivity of gas rotates bring with turbine
Centrifugal action makes the distinguished and admirable rotation center far from it by turbine, and flaring outer cover can reduce distinguished and admirable after turbine
To the angle of attack of outer cover, reduce energy loss distinguished and admirable in fan housing.Flaring outer cover is suitable for outer diameter gradually big multistage simultaneously
Fan blade.With a certain distance from turbine has from rear air cover air outlet, the space being also gradually increased after afterbody fan blade, air-flow
By entering a thin negative pressure region (part M in Fig. 6) after turbine aft, can promote fast by the air of fan blade
Speed fills this piece negative pressure region, further accelerates to air-flow when passing through fan blade.It is negative that the rear air cover of flaring can more be connected this
The outer cover for pressing space makes distinguished and admirable by fan blade section, doing the smallest angulation change after fan blade always before fan blade.It keeps expanding
Scattered path is smooth.
Current divider 2 is truncated cone-shaped, the air inlet of the upper bottom of minor radius towards rear air cover.The tail portion of current divider 2 is connected to whirlpool
At engine blade wheel, the tail diameter of current divider 2 is the half of turbine section diameter.Turbine 5 includes multistage fan blade, after
One stage impeller diameter is greater than previous stage impeller diameter.So that impeller is agreed with the current divider 2 constantly increased, while can also not change wind
The gas at rear stage fan blade is flowed through in the case where cover leads to area less than the logical area of gas flowed through at previous stage fan blade.
The present embodiment technical solution, the natural wind of fan housing 6 before capable of being further lifted into, natural wind is from tapered preceding wind
Before cover 6 is pooled at the air outlet (air inlet of rear air cover) of fan housing 6, current divider and rear wind are entered back into from the air outlet of preceding fan housing
Arrow path between cover, and by the distinguished and admirable outer rim for guiding fan blade into, after being raised speed by two-stage, wind-force more greatly blows more turbine machine blade
To be strong, turbine obtains bigger mechanical energy.
Embodiment 7:
As shown in fig. 7, a kind of wind electricity generating system, structure is as described in Example 6, the difference is that: preceding fan housing 6 with
The outer surface of rear air cover 7 is provided with pressurization air bag 8 and air compressor machine 13, and pressurization air bag 8 is located at upper surface, and air compressor machine 13 is located at following table
Face is pressurized on the outside of air bag 8 and is connected with air compressor machine 13, and air compressor machine 13 is mounted on the lower surface of fan housing and the gravity deflection of air compressor machine
Heart setting, can prevent fan housing from rotating.The air pressure of pressurization air bag can be adjusted at any time by air compressor machine, being pressurized air bag to increase is
System rigidity.The quantity of pressurization air bag can have multiple, and an air bag gas leakage does not influence whole working performance.
The junction of preceding fan housing 6 and rear air cover 7 is provided with floating air bag 12, floating air bag is interior filled with helium, floating gas
The edge that capsule 12 is located at upper surface and floating air bag is no more than the radial edges of preceding fan housing 6.The additional wind surface of fan housing is not increased
Product, and floating air bag is positioned only at external air hood upper surface.This setting increases gravity center eccentric, prevents fan housing from revolving radially along turbine shaft
Turn.
Embodiment 8:
A kind of working method of the wind electricity generating system as described in any of the above embodiment, comprising the following steps:
Natural wind from the air inlet of external air hood 1 or preceding fan housing 6 enter, when by current divider 2, natural wind from current divider 2 with
The narrow air duct of external air hood 1 or rear air cover 7 accelerates to pass through, and then blows and turns positioned at current divider surface or 5 fan blade of subsequent turbine
Dynamic, turbine 5 drives generator 3 to generate electricity after rotating.
In the present embodiment, electrical power generators are exported on electric current to required equipment by conventional electric power output apparatus, are adopted
It can be realized with the prior art, not in the column of the protection scope of the application.
Claims (10)
1. a kind of wind electricity generating system, which is characterized in that including external air hood, generator, turbine and current divider；The one of external air hood
End is air inlet, the other end is air outlet, and air inlet bore >=air outlet bore, current divider are in flaring knot from head to tail portion
Structure, current divider is at least a part of to be arranged in external air hood, and turbine is mounted on the surface or back of current divider, turbine and hair
Motor drive connection.
2. wind electricity generating system as described in claim 1, which is characterized in that the generator is mounted in current divider.
3. wind electricity generating system as described in claim 1, which is characterized in that the gas in external air hood, before turbine machine blade
Logical area is greater than the gas flowed through at fan blade and leads to area.
4. wind electricity generating system as described in claim 1, which is characterized in that the current divider be integrally provided in external air hood and
The head of current divider is towards air inlet, tail portion towards air outlet.
5. a kind of wind electricity generating system, which is characterized in that including preceding fan housing, rear air cover, generator, turbine and current divider；Before
One end of fan housing is air inlet, the other end is air outlet, and air inlet bore >=air outlet bore of preceding fan housing, the one of rear air cover
End be air inlet, the other end is air outlet, and air inlet bore≤air outlet bore of rear air cover, the air inlet of rear air cover and before
The air outlet of fan housing connects, and current divider is in divergent structure from head to tail portion, and current divider is at least a part of to be arranged in rear air cover
Interior, turbine is mounted on the surface of current divider or back and is located at after rear air cover air inlet, and turbine and generator drive gear connect
It connects.
6. wind electricity generating system as claimed in claim 5, which is characterized in that the turbine is located in rear air cover.
7. wind electricity generating system as claimed in claim 5, which is characterized in that the head of the current divider be located in rear air cover and
Air inlet of the head of current divider towards rear air cover.
8. wind electricity generating system as claimed in claim 5, which is characterized in that the gas in rear air cover, before turbine machine blade
Logical area is greater than the gas flowed through at fan blade and leads to area.
9. wind electricity generating system as claimed in claim 5, which is characterized in that when turbine includes multistage fan blade, rear stage
The outer diameter of fan blade is greater than the outer diameter of previous stage fan blade.
10. a kind of working method of such as described in any item wind electricity generating systems of claim 1-9, comprising the following steps:
Natural wind enters from the air inlet of external air hood or preceding fan housing, when by current divider, natural wind from current divider and external air hood or
The narrow air duct of rear air cover accelerates to pass through, and then blows after current divider surface or the acting of subsequent turbine, rotating turbine
Drive electrical power generators.
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| CN201811095951.6A CN109026547A (en) | 2018-09-19 | 2018-09-19 | A kind of wind electricity generating system and its application |
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Application publication date: 20181218 |