CN201184276Y - Wind duct type wind power generation plant - Google Patents

Wind duct type wind power generation plant Download PDF

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Publication number
CN201184276Y
CN201184276Y CNU2008200572180U CN200820057218U CN201184276Y CN 201184276 Y CN201184276 Y CN 201184276Y CN U2008200572180 U CNU2008200572180 U CN U2008200572180U CN 200820057218 U CN200820057218 U CN 200820057218U CN 201184276 Y CN201184276 Y CN 201184276Y
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China
Prior art keywords
wind
generating device
energy
air duct
rotating disk
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Expired - Fee Related
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CNU2008200572180U
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Chinese (zh)
Inventor
邓蓓佳
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Shanghai Gezhi High School
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Shanghai Gezhi High School
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Priority to CNU2008200572180U priority Critical patent/CN201184276Y/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/728Onshore wind turbines
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/74Wind turbines with rotation axis perpendicular to the wind direction
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Abstract

A wind-drum wind power generating device relates to a generating device, in particular to a wind power generating device, which is characterized in that a wind drum is used for enhancing the efficiency of wind-energy generation; a wind vane and a cross-flow type multi-blade impeller are used for enhancing utilization efficiency of wind energy; the volume of a wind-energy generating device is reduced; a tail vane is easy to disassemble and mount, so that the whole wind-drum wind power generating device is carried and assembled conveniently, and the operation capacity of the maintenance of the wind-energy generating device is reduced; the manufacture cost of the wind-energy generating device is reduced. The wind power generating device is provided with a maintenance platform and a metal guardrail for the safe operation of maintenance personnel.

Description

Wind cylinder type wind power generating device
Technical field
The utility model relates to a kind of electricity generating device, is specially a kind of wind generating unit.
Background technique
Wind is the most familiar natural phenomenon in our daily life, and tellurian wind is that solar radiation causes the earth surface atmospheric layer inequality of being heated, and causes the atmospheric pressure skewness.Under the differential pressure effect, the motion of air along continuous straight runs just forms wind, and the kinetic energy that air flows produced is exactly wind energy.Wind energy is a kind of most active renewable energy sources, therefore we can say that also wind energy is a kind of inexhaustible energy.And oil; coal; the mineral fuel energy such as rock gas; in the utilization process; can give off carbon dioxide; sulfur dioxide; nitrogen oxide; carbon monoxide; dust or the like; cause greenhouse effect, phenomenons such as acid rain, the serious environment pollution and the destruction ecological balance; this makes the ice sheet area of two polar regions, north and south dwindle; the snow mountain snow melt region of Tibet plateau increases, and the ruined area of the overhead ozonosphere in polar region is enlarging, and these have all beaten alarm bell to us; people must utilize reproducible wind energy as soon as possible; solar energy; Wave energy etc.; reduce and use oil; coal; the fossil energy that rock gas etc. are non-renewable, and the exploited quantity of fossil energy is very limited, to human existence; development and energy demand have proposed the serious crisis warning.
Through probing into of field investigation and technical data, recognize that the wind energy resources of our country is very abundant, about 2.5 hundred million kilowatts of developable electric motor power, occupy first place in the world, but our national actual wind-power electricity generation electric motor power only accounts for 0.11% of national electric power installation, the wind-power electricity generation development potentiality is huge.
Use wind electricity generating system more widely at present, for the form of collecting folk songs of cloverleaf in the majority, but along with the generate output of electricity generating device constantly increases, the blade diameter of cloverleaf blower fan must be done very greatly, with the expansion area of collecting folk songs, increase generated energy, calculate according to data, if do the wind-driven generator of 3 megawatts, then its fan blade diameter will reach 100 meters, and purpose is to increase blade tip peripheral speed, wind-connector mounting support pylon, it is comparable to the height of " Washington, DC memorial tower " highly, and promptly total height is 150 meters.This obviously is impracticable scheme.
Present wind electricity generating system, as: cloverleaf, double-valve type, single leaf formula is under strong especially strong wind situation, blade is fractureed easily, when the weak especially gentle breeze of wind speed, because the friction factor resistance from weight and transmission system of fan blade, blade just changes motionless, remain static, when temperature-20 ℃, have the blade embrittlement, faults such as fracture take place.
Present wind electricity generating system, complicated to the tracking technique of wind direction, but the direction of wind is changeable, rotates sometimes.
The model utility content
The purpose of this utility model is to provide a kind of wind cylinder type wind power generating device, can collect the energy in the very weak wind well, and is simple from the device of motion tracking wind direction, and power consumption is few, not even power consumption.
Wind cylinder type wind power generating device provided by the utility model, can realize by the following technical solutions:
Wind cylinder type wind power generating device has wind-drive device, runner, generator, the steering gear, storage battery, and the steering gear has rotating disk, it is characterized in that, wind-drive device is the collecting type air duct of typhon shape, and the collecting type air duct is fixed on the rotating disk; The osculum end of collecting type air duct is equipped with and is used to drive the wind vane that the collecting type air duct rotates.
Truss is equipped with in the below of rotating disk, is connected by rotating shaft between rotating disk and truss, and a face down bonding of truss is connected to the inspection platform of metal, and described inspection platform top is a sheet metal, is welded with the metal guardrail on every side.
The exhaust outlet of collecting type air duct is rectangle.
Runner is horizontal multiblade impeller.
Wind vane is the tail vane formula, and its useful area is greater than the air duct air-admitting surface.
Wind vane is fixedly mounted on collecting type air duct exhaust outlet afterbody, extends back, and conveniently detachable.
Trapezoidal collision block is set between last lower rotary table, and the restriction angle of yaw is not more than 345 degree.
The first, the collecting type air duct of wind cylinder type wind power generating device is the cylinder that adopts a typhon pattern, enlarge the collection area of intake grill to wind, significantly improve the wind speed at exhaust outlet place, can not only solve the problem that wind can not generate electricity when weak, and under multiple situation, can both use.The design capacity of this wind generating unit is 500 watts, and through calculating as seen, wind cylinder type generator of the present utility model improves 11.29 times to wind speed.
Figure Y20082005721800041
= π R 2 B × C × 80 %
= 3.1416 × 0.562 m 2 0.5 m × 0.25 m = 11.29
In the following formula, R 2Be (the m of 0.75 meter of intake grill radius 2)
B-is the long limit 0.5m of exhaust outlet rectangle
C-is the broadside 0.25m of exhaust outlet rectangle
η-utilization factor is 80%
The wind speed of design intake grill is 4m/s, i.e. V 1=4m/s
The wind speed that the wind speed of exhaust outlet equals intake grill multiply by raising wind speed multiple, i.e. the wind speed V of exhaust outlet 2=4m/s * 11.29=45.19m/s flows through the (m perpendicular to wind speed sectional area A in the unit time 2) wind energy:
Wind energy ω=1/2 ρ V 3A
In the following formula: ρ-be air density kg/m 3
V-is wind speed m/s
A-is the m of sectional area unit 2
ω-wind energy unit is kg, m 2, s -3(being W)
From above-mentioned wind energy formula W=1/2 ρ v 3A increases swept area of rotor A and can increase the wind energy that is obtained with raising incoming flow wind speed V as can be seen.
Following formula wind energy formula, divided by corresponding area A, just obtain the wind energy density formula, it is air-flow vertical wind energy by unit cross-sectional area in the unit time.
ω = 1 / 2 ρ v 3 A A = 1 / 2 ρ v 3
Air density ρ is an air pressure, the function of temperature and temperature, and the air density of different regions is all inequality, can table look-up and learn the numerical value of ρ.
Altitude and barometric pressure, atmospheric density relation [15 ℃=288k of atmospheric temperature]
Figure Y20082005721800052
The wind energy of this project air duct exhaust outlet is:
W=1/2ρV 3A
=1/2×1.224×45.19 3×3.14×(0.5 2-0.45 2)×1/5
=1685.59W
In the following formula: ρ---in Shanghai, atmospheric density gets 1.224
V---for after the speed-raising of air duct afflux, the exhaust outlet wind speed
A---be swept area of rotor, this project adopts the cross-flow type multiblade impeller, and swept area of rotor is an annulus, exradius 0.5m, and interior circle radius 0.45m, the area of wind on wind wheel is 1/5 of whole annulus
No matter from above-mentioned wind energy formula W=1/2 ρ V 3A or wind energy density, formula W=1/2 ρ V 3In can see, because of V 3Cause, promptly there is being a spot of increase can cause that a large amount of increases is arranged on the wind speed on wind energy, the method of the air duct collection wind of this Project design increases the air duct air-admitting surface, dwindle the exhaust outlet area, thereby strengthen wind speed and improve multiple, just improve the exhaust outlet wind speed, promptly reached the crucial purpose of amplifying wind speed.
The second, adopt the collecting type air duct of loudspeaker form, its exhaust outlet is made rectangle and is dwindled the useful area of exhaust outlet, so that the wind speed of exhaust outlet improves, and the making full use of of wind energy, remove to blow the cross-flow type multiblade impeller.The friction factor of this impeller is little, light self-weight, long service life, design with this and to overcome that cloverleaf wind energy engine blade is easily fractureed by high wind and the problem that can not generate electricity, cross-flow type multiblade impeller of the present utility model, this has determined that also the air duct exhaust outlet is a rectangle, thereby to reach the purpose that coupling fully makes full use of wind energy, the running shaft of this wind energy conversion system is vertical with wind direction.Because dwindling of exhaust outlet area, by calculating as can be known, wind energy density is the key parameter of evaluation wind-driven generator acting ability, wind speed V 2High more, the wind energy that wind-driven generator may extract is big more, and becomes three cubed relation.
In order when wind speed is low, further to increase distinguished and admirable density, the flow guide device that can change the exhaust outlet size is set at collecting type air duct mid-rear portion.
The utility model can improve the rotating speed of cross-flow type multiblade impeller effectively, improves generated energy with this, increases economic efficiency.
The 3rd, adopt the self method of wind vane, wind vane is fixedly mounted on the tail vane that collecting type air duct exhaust outlet afterbody extends back, and the tail vane useful area is greater than the air duct air-admitting surface.Wind vane is by the afterbody steel pipe that extends back, and erects the square steel of a high 1.5m on framework platform, this square steel top by rope traction in 4/5ths the position of extending steel pipe.More helping rotatable disc is driven by wind vane, make intake grill can both follow the tracks of, aim at the air intake direction all the time, thereby improve the wind energy utilization of wind electricity generating system and improve generating efficiency, substitute the device that follows the wind of present wind-driven generator complexity with this, save the cost and the maintenance expenses of wind energy generating plant.
The 4th, adopt the limit stoper of the steering gear angle of yaw free deflection in the scopes of 345 degree of collecting type air duct, rotated by same direction repeatedly and around the problem of outage line with this connection electric wire that solves the generator that wind generating unit exists.So, can significantly reduce maintenance load, reduce the operating cost of wind-power generating system wind-driven generator.The restriction angle of yaw be not more than 345 the degree collision blocks, be designed to trapezoidal, get its geometrical construction stable properties, the trapezoidal collision block both sides that are provided with on the fixing rotating disk by impact face on the thick yielding rubber of 20mm is set, at the trapezoidal both sides impact face of rotatable rotating disk, yielding rubber just is set no longer.
The steering gear is provided with fixed mechanism, and fixed mechanism is the center by the center of circle with rotating disk on the rotating disk, and the circular hole and the steel Xiao that are miter angle each other form.As long as insert steel Xiao, can guarantee that rotating disk no longer rotates.
Beneficial effect:
Characteristics of the present utility model are that the utilization air duct improves the efficient of wind energy power; Utilization wind vane and cross-flow type multiblade impeller improve utilization ratio of wind energy; Dwindle the volume of wind electricity generating system; Tail vane is easily dismounting and whole typhoon cartridge type electricity generating device resettlement easy for installation and assembling, reduces wind electricity generating system, maintenance workload; Reduce the cost of wind electricity generating system.Have inspection platform and metal guardrail that the safety operation for the maintainer is provided with.
Description of drawings
Fig. 1 is the utility model overall structure schematic side view.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Wind cylinder type wind power generating device has wind-drive device, runner, generator, the steering gear, storage battery, and wind-drive device is the collecting type air duct 1 of typhon shape, and collecting type air duct 1 is fixed on the rotating disk 5; The osculum end of collecting type air duct 1 is equipped with wind vane 2.The exhaust outlet 3 of collecting type air duct 1 is rectangle.Runner is horizontal multiblade impeller 4.Wind vane 2 is fixedly mounted on collecting type air duct exhaust outlet, the extended spot behind the afterbody.
Truss 6 is equipped with in the below of rotating disk 5, and rotating disk 5 is connected by rotating shaft with 6 of truss, and a face down bonding of truss 6 is connected to the inspection platform 7 of metal, and described inspection platform top is a sheet metal, is welded with metal guardrail 8 on every side.
One, horn collecting type air duct 1 is used the aluminum alloy material manufacturing, gets little, the cheap characteristic of its density, and coats anticorrosive coating inside and outside air duct, to improve working life.
Two, be coupling cross-flow type multiblade impeller 4, the exhaust outlet 3 of wind energy conversion system is made rectangle, so that the wind energy of exhaust outlet 3 is fully utilized.Because in the geometric figure, the area maximum of circle is so that intake grill is done is circular, to enlarge the collection area of intake grill to wind energy again.Area with dwindling exhaust outlet 3 improves wind speed, has promptly improved the generating efficiency of wind electricity generating system, improves the output quantity of electric energy.
This measure is especially as hydraulic turbine generator, utilize reservoir filling, it is poor to flood, thereby improved the driving force of water,, utilized at little electrical signal of base stage input again especially as transistor to hydraulic turbine generator, just can be at emitter to producing tens times of electrical signal between the collector electrode to hundred times greater than base input signal, reach the amplification of signal, collecting type air duct of the present utility model also is based on above thinking, and the collecting type air duct has amplification to wind speed.As everyone knows, if collecting the fan blade blade that wind-force kinetic energy into all is rotated, the intake grill of horn collecting type air duct absorbs, the air of cross-flow type wind wheel back is just motionless so, however air can not stop fully, so the efficient of wind energy conversion system is always less than 1.
Cross-flow type wind wheel power absorbed from air duct can be calculated with following formula: P=1/2CpA ρ V3
P-is the power of wind wheel output in the following formula
Cp-is the power factor of wind wheel
Cp.max=0.593
A-is a swept area of rotor
R-is the wind wheel radius
V-is a wind speed
ρ-be air density
Following formula is as seen: the output power of wind wheel and wind speed cube be directly proportional and air density and swept area of rotor are directly proportional, so the diameter of cross-flow type multiblade impeller 4 is designed to 50cm.
Three, adopt cross-flow type multiblade impeller 4 can alleviate impeller from weight and reduce the friction factor of wheel rotation system, and cross-flow type multiblade impeller 4 is firm, is difficult for being fractureed.Impeller adopts the Stainless Sheet Steel manufacturing, rotating shaft is partly closed lubricated with bearing bush, shaft passes through coupling, connect raising speed gearbox and mag-dynamo, because cross-flow type multiblade impeller 4 rotating speeds own are very high,, reduced gear-driven progression so the raising speed scope of raising speed gearbox can be less, thereby reduced the friction factor of system, reduced volume, weight and the manufacture cost of raising speed gearbox.
Four, with reference to Fig. 1, adopt the self method of wind vane, wind vane 2 is fixedly mounted on collecting type air duct exhaust outlet afterbody.The extension tail vane length of wind vane 2 is 2.8 meters, and average wide is 0.95 meter, and the tail vane useful area is greater than air-admitting surface.The stretching, extension tail vane of wind vane 2 is installed on the framework platform, more helping the rotatable dish of going up is driven by wind vane 2, make intake grill can both follow the tracks of, aim at the air intake direction all the time, thereby improve the wind energy utilization of wind electricity generating system and improve generating efficiency, substitute the device that follows the wind of present wind-driven generator complexity with this, save the cost and the maintenance expenses of wind energy generating plant.
Wind vane 2 is simple and practical, wind vane 2 employing aluminum alloy material manufacturings, and can dismantle easily and install.
Five, design limit collecting type air duct deflection angle is not more than the device of 345 degree.Fixedly on the rotating disk, trapezoidal collision block both sides are provided with the 20mm yielding rubber, at the trapezoidal collision block of rotatable disc yielding rubber are not set then.Setting up of limit stoper avoided generator to connect electric wire, around the accident of broken string, significantly reduced the workload of the fault of electricity generating device and maintenance, maintenance because repeatedly same direction is rotated, and reduced the operating cost of wind-power generating system.
Six, because the wind cylinder type current collecting method, so wind speed is had amplification the design's wind generating unit, can reduce the setting height(from bottom) of wind generating unit pylon, save mounting material and expense.
Seven, designed wind generating unit, considered maintenance and the operating technology personnel's when safeguarding safety, two movably gates are arranged near exhaust outlet 3, (when not keeping in repair usually) and wind vane 2 lead jointly when shifting out, play isolated air quantity from the intake grill to the gate during shift-in, just completely cut off the air quantity influence of intake grill exhaust outlet 3.
On fixing rotating disk and rotatable rotating disk 8 diameters being arranged respectively is the identical circular hole of 20mm, and each circular hole spacing is 450, and the center, hole is far from garden plate edge 25mm, as long as circular hole is aimed at up and down, pin is inserted, just can lock the rotation of top rotary table, guarantee maintainer's safety.
At the shaft joint place of raising speed gearbox and cross-flow type fan blade, a brake SC is set, can stop during maintenance and decide the rotation of cross-flow type fan blade.
For making things convenient for maintainer's work, on fixed platform, extend the inspection platform of a steel structure, its podium level design to satisfy the maintainer of 1.65 meters heights, stands on the platform, and reaching out one's hands conveniently to touch any parts of required maintenance.Maintainer's working platform will design security guardrail.
More than be provided with for maintainer's safety operation.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (2)

1, wind cylinder type wind power generating device has wind-drive device, runner, generator, the steering gear, storage battery, and the steering gear has rotating disk, it is characterized in that, wind-drive device is the collecting type air duct of typhon shape, and the collecting type air duct is fixed on the rotating disk; The osculum end of collecting type air duct is equipped with and is used to drive the wind vane that the collecting type air duct rotates.
2, wind cylinder type wind power generating device according to claim 1 is characterized in that, truss is equipped with in the below of described rotating disk, be connected by rotating shaft between rotating disk and truss, one face down bonding of truss is connected to the inspection platform of metal, and described inspection platform top is a sheet metal, is welded with the metal guardrail on every side.
CNU2008200572180U 2008-04-14 2008-04-14 Wind duct type wind power generation plant Expired - Fee Related CN201184276Y (en)

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Application Number Priority Date Filing Date Title
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Publications (1)

Publication Number Publication Date
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Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111120214A (en) * 2019-12-16 2020-05-08 合肥敬卫新能源有限公司 Movable three-dimensional wind power generation device
CN113124646A (en) * 2021-04-29 2021-07-16 开封迪尔空分实业有限公司 Air separation cold box based on wind power generation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111120214A (en) * 2019-12-16 2020-05-08 合肥敬卫新能源有限公司 Movable three-dimensional wind power generation device
CN113124646A (en) * 2021-04-29 2021-07-16 开封迪尔空分实业有限公司 Air separation cold box based on wind power generation

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Granted publication date: 20090121