CN102128136A - Axial tube circular current wind tunnel-pressurized wind energy generating system - Google Patents
Axial tube circular current wind tunnel-pressurized wind energy generating system Download PDFInfo
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- CN102128136A CN102128136A CN2010100427615A CN201010042761A CN102128136A CN 102128136 A CN102128136 A CN 102128136A CN 2010100427615 A CN2010100427615 A CN 2010100427615A CN 201010042761 A CN201010042761 A CN 201010042761A CN 102128136 A CN102128136 A CN 102128136A
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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
Abstract
The invention relates to a wind energy generating system, in particular to a wind power generation device which adopts an axial tube circular current wind tunnel device, uses an olive-shaped tube shaft arranged and fixed in a wind tunnel to contract and pressurize natural wind to form high-speed annular air current, improves wind speed, controls the air current, enhances wind pressure and obtains large-scale wind energy by utilizing energy-collecting impellers. The wind power generation device is favorable for improving the torque of the air current at the energy collecting section to obtain high-strength torque force. In the wind power generation device, an appropriate wind power station is selected, the wind tunnel is built in the windward direction, wind wheels are arranged at the main body position of an axial tube, and a generator set is driven to obtain electric energy.
Description
[affiliated technical field]
The present invention relates to a kind of wind power generation system, especially adopt the annular pressurized wind tunnel of central siphon ring-current, have the wind speed of raising, control air-flow, strengthen blast, utilize and adopt the wind generating unit that the energy impeller obtains extensive wind energy.
[background technique]
The energy is the important foundation data of survival and development of mankind.In the last hundred years, along with improving constantly and production-scale expansion of human lives's demand, also more and more ardenter to the demand of the energy.Enter 21st century, energy crisis is restricting socio-economic activity day by day, and the fossil energy that tradition is used is deficient day by day, and price is constantly soaring, becomes the key factor that causes World Economics upheaval and influence peace.And, a large amount of uses of fossil energy, Co
2, So
2Isothermal chamber gas discharges in a large number, causes climate warming, and ecological transition jeopardize environment for human survival.
In order to solve serious day by day energy crisis, alleviate the environmental pollution of using fossil energy to bring owing to a large amount of, for a long time, countries in the world are dropped into huge fund one after another and are sought the exploitation renewable energy sources.The clean energy resource of listing the primary study exploitation at present in has water energy, wind energy, solar energy, tidal energy, biomass energy etc.
The development and use of wind energy have very long history.In recent years, wind-power electricity generation is subjected to the great attention of countries in the world government, energy circle and environmental protection circle as reproducible clean energy resource.The wind resource reserves are big on the earth, cleanliness without any pollution, and short construction period, investment is taken up an area of and is lacked flexibly, has favorable economic benefit and social benefit.
Wind Power Utilization begins to take shape in some European countries, the rapid growth period that European wind power plant production also having entered.Germany has been development and has utilized wind energy country early that since the nineties in last century, Germany has set up 6600 wind power stations altogether.The German Government plan, every year all will be with 30% speed increment from now on, and the annual wind-power electricity generation amount that increases is above 1,000,000 kilowatts.Denmark is windy state near the North Sea, also is the country that develops the wind power station the earliest.Over more than 20 year, Denmark maintains the leading position aspect the wind energy utilizing always.Since the nineties in 20th century, particularly nearly 10 years, the growth rate of Denmark's wind-power electricity generation amount was all more than 30%.Except that Germany and Denmark, countries such as Holland, Sweden, France, Norway, Finland, Italy and Spain have also put into effect 5 years, 10 years wind-power electricity generations and have popularized plan.
THE WIND ENERGY RESOURCES IN CHINA is abundant.According to the initial estimate of China Meterological Science Research Institute, it is 2.53 hundred million kilowatts that 10 meters height places, China land reality can be developed wind energy content, and it is 7.5 hundred million kilowatts that marine reality can be developed wind energy content, amounts to about 1,000,000,000 kilowatts, and Wind Power Utilization has a high potential.China wind energy resourceful area mainly the coastal area of grassland, Xinjiang, Inner Mongol and corridor, Gansu, Qinghai-Tibet Platean and the east in North China, northwest and northeast, the southeast and near on the island.And abundant nearly 4000 hours of the time of annual wind speed more than 3m/s of district of wind energy resources, some regional annual mean wind speeds can reach more than the 7m/s, have very big value of exploiting and utilizing.The wind-powered electricity generation project requires the annual utilization hours number to exceed 2000 hours usually, and at present the wind energy turbine set built up of China is on average utilized hours about 2300 hours, mainly is positioned at " three Norths " area (northwest, northeast and North China) and southeastern coast.The province that China's grid connected wind power construction scale is bigger is: Xinjiang, the Inner Mongol, Hebei, Guangdong, Liaoning, Zhejiang, Jiangsu, Ningxia, Gansu, Fujian etc.
The universal way of wind-power electricity generation is to adopt overhead type three blade wind-wheels at present.Wheel shaft drives generator by speed change gear.The unit generated output is commonly below the 2MW.Zui Da offshore wind generating is 5MW in the world.
The present invention adopts tunnel pressurized principle, and the nature air-flow is pressurizeed in the construction of wind tunnel device, and focused energy arrives behind suitable water conservancy diversion and adopts the energy wind wheel, obtains large-scale electric energy.
The central siphon ring-current pressurized wind tunnel that the present invention adopts by olivary water conservancy diversion central siphon is installed, is guided air-flow into the water conservancy diversion axle outside in wind-tunnel, adopting and can section acting on wind wheel, by improving the torsion that moment obtains hard intensity, help improving efficiency.
[summary of the invention]
Have wind tunnel device in the present invention, adopt the energy impeller, test the speed and arrangements for speed regulation, power take-off and safe disaster reduction device formation, explanation according to the following steps:
1. wind tunnel device
(1) wind-tunnel profile: this device profile is cylindrical tubular construction of wind tunnel or the front end bore shrinks gradually, the rear end bore amplifies gradually dumbbell shaped member.Along putting ground.Wind inlet is towards the direction of the wind comes from.Total length is about 2-5 times of diameter.
(2) water conservancy diversion central siphon: the direction of the wind comes from wind-tunnel, olivary water conservancy diversion axle is installed.The water conservancy diversion axle is mobilizable rotatingshaft or not rotatable fixing device.Guide the air-flow of the direction of the wind comes from into the water conservancy diversion central siphon outside, and quicken gradually, form annular flow field.
Water conservancy diversion central siphon front end is the cone of amplifying gradually, and drift angle is 15～60 °.
Water conservancy diversion central siphon main body is a cylindrical body, and diameter designs on demand, and making the wind-tunnel contraction ratio is 3: 1～10: 1.
Water conservancy diversion central siphon rear end is the cone with the front end symmetry.
(3) material: wind tunnel device adopts reinforced concrete, steel or other materials.Can choose different materials according to the blast of different segmentations makes up.Should adopt firm, durable, economic material in principle.
2. flow guide device: for controlling air-flow better, reduce turbulence, need to install flow guide device in the wind tunnel device.This device is made of guide plate, guiding gutter or honeycomb duct, and material is steel or other hard materials.
3. wind pressure adjusting device: for obtaining stable wind energy better, avoid the infringement of disaster weather to system equipment, wind tunnel device need be installed wind pressure adjusting device, by changing air flue size control air flow rate.This equipment is multilayer net grid structures, is the flat-form material with certain width laterally or vertically, by regulating faying surface control throughput.
4. shifter: for adapting to the wind direction that changes to some extent of wind energy turbine set better, gather wind energy to greatest extent, wind tunnel device needs the installation direction mobile device.This mobile device guarantees that it can section be that the axle center is done to move around axle that wind-tunnel is adopted with impeller.Should under wind-tunnel, make up firm basis, mobile power plant are installed.
5. adopting can impeller
Impeller is made up of wheel shaft, wheel hub, spoke, inside and outside two-wheel ring, blade, attack angle regulator, braking device etc.;
(1) wheel shaft: for wheel hub is supported part.Steel or other high strength material structures.Horizontal on the wind wheel support.Power output gear is installed;
(2) wheel hub: support part for impeller, the wheel shaft arranged radially is pressed for two groups in front and back.Steel or other high strength material structures.Loop configuration, inboard and wheel shaft engagement.Can regulate the tooth matching angle of rear-wheel hub and wheel shaft.The outside connects spoke;
(3) spoke: support part for blade, the wheel shaft arranged radially is pressed for two groups in front and back.Steel, carbon steel or other high strength material structures.The inner wheel hub that connects, the outer end connects torus.Quantity satisfies the intensive air partition needs of structure, and is radial evenly distributed;
(4) inside and outside two-wheel ring: torus is the periphery support and the wheel hub fixing device of impeller, and the wheel shaft arranged radially is pressed for two groups in front and back.Steel, carbon steel or other high strength material structures;
(5) blade: be the inner concave shape paraboloid structure, height is a little less than the torus radius, and front and back length is advisable with 5～20 meters, should fully cover the rear panel impeller on axis.Height is to be advisable a little less than wind-tunnel inwall and water conservancy diversion axle external diameter spacing.Blade inlet edge is fixed by preceding spoke, and the trailing edge fluting connects the back spoke.Back spoke can slide before and after groove, to change attack angle of blade.Blade is provided with guiding gutter along airflow direction, dark 5～10 centimetres;
(6) attack angle regulator: be the device of adjusting vane windward side angle, the wind-powered electricity generation unit can obtain metastable wind energy by the adjusting angle of attack of the wind comes from.Attack angle regulator is realized by regulating the position of rear-wheel hub on wheel shaft.Under the situation of front hub invariant position, the relative radial position of rear-wheel hub changes, and the angle that facings the wind of blade just changes;
(7) braking device: impeller needs braking device, so that need to stop wheel rotation at any time.The employing of impeller braking device unloads rear-wheel hub load, installs to brake on wheel shaft and stop, or equipment is braked the realization of stopping on torus.
3. test the speed and arrangements for speed regulation: the wind-powered electricity generation unit will keep relative constant outputting torsion and rotating speed, just needs to install to test the speed and arrangements for speed regulation.Speed measurement device is installed on impeller or the wheel shaft, measures impeller or wheel shaft rotating speed, and when rotating speed was higher than setting value, arrangements for speed regulation reduced attack angle of blade by regulating the wheel hub tooth matching angle.When rotating speed was lower than setting value, arrangements for speed regulation increased attack angle of blade by regulating the wheel hub tooth matching angle.
4. power take-off: be power output gear, be installed on the wheel shaft, be positioned at the impeller rear.Connect speed change gear and generator set.
5. generator: be wind-driven generator, connect the power output variable speed system of wheel shaft, be installed in the water conservancy diversion axle or the wind-tunnel below.
6. safe disaster reduction device
(1) safety net: be the protective net that steel or other materials are made, be positioned at the appropriate location of wind-tunnel.Prevent that people, animal or other objects from being involved in wind-tunnel by high velocity air, injures life and impeller facility;
(2) decompressor: for adapting to extreme weather conditions, avoid blowing facility such as damage wind-tunnel and wind wheel down, pressure-reduction outlet need be set on wind-tunnel at hurricane.Pressure-reduction outlet is arranged on contraction section.Be concrete structure or steel structure.About 5～10 square meters of each pressure-reduction outlet size.Pressure-reduction outlet is provided with the blast automatic measuring system, and when local blast surpassed the setting value, pressure-reduction outlet can be opened automatically, and the opening degree size is regulated according to blast.
(3) snow defence anti-icer: be electrical heating net, be arranged on safety net rear and the blade.
(4) lightning arrester: be installed in the wind-tunnel top.
[beneficial effect]
Wind power generation system provided by the present invention has following effect:
1. the extensive energy is provided.The present invention can assemble the nature wind energy in a large number, forms high-power generating, for people's productive life provides a large amount of electric energy, alleviates energy crisis serious day by day on the present earth;
2. clean environment firendly.Wind power generation system of the present invention is the environmental friendliness energy completely, can not bring any pollution to environment;
3. less investment.According to the wind energy power unit less investment that the present invention builds, every kilowatt of installation investment is far below existing thermoelectricity, nuclear power, water power, solar electrical energy generation and wind-powered electricity generation etc.
[description of drawings]
Fig. 1 is the profile schematic representation, Fig. 2 wind-tunnel central siphon structure sectional view.
Among the figure: 1-tunnel body for wind, 2-water conservancy diversion central siphon front cone, 3-water conservancy diversion central siphon main body, 4-water conservancy diversion central siphon back cone, 5-impeller, 6-impeller shaft, 7-generator, 8-water conservancy diversion central siphon support, 9-tunnel body for wind support.
[embodiment]
1. selection wind energy turbine set
The wind energy turbine set addressing that the present invention is desirable should be that the place is open, wind-force even, the long-term more stable zone of predominant wind direction.
2. construction wind-tunnel
(1) reinforced concrete construction.
(2) size:
200 meters of total lengths, 100 meters of diameters;
(3) flow deflecting cone:
Drift angle: 30 °;
Bottom surface diameter: 86 meters;
(4) water conservancy diversion axle
Diameter: 86 meters;
Length: 50 meters;
Material: corrosion resistant plate;
Position: be installed in wind-tunnel cylindrical shell neutral position;
(5) pressure-reduction outlet:
Size: 3 * 3 meters;
The position: be installed in the front end top of wind-tunnel, evenly distributed;
Quantity: 10;
(6) safety net:
Be 4 millimeters reinforcing meshs;
Be installed in the contraction section front end;
(7) wind pressure adjusting device:
Area is 50 * 50 meters.Be 5 layers of horizontal grid.Totally four groups.
(8) frost and snow net:
Be electric network;
After being installed in safety net;
(9) lightning arrester:
Be installed in the wind-tunnel top;
3. build, install wind wheel:
(1) wheel shaft pedestal:
Material: reinforced concrete;
(2) wheel shaft:
Size: 3 meters of diameters, 15 meters of length;
Material: steel;
(3) wheel hub:
Size: thickness 50cm, width 30cm;
Material: cast steel;
(4) torus:
Size: 49.5 meters of radiuses, 5 meters of wheel bases;
Trailing wheel angle adjustable: 10 °;
Material: stainless steel;
(5) spoke
Quantity: 40;
Material: carbon steel;
(6) blade
Size: 13 meters of height, 8 meters of front and back length;
Quantity: 40;
Material: carbon steel board;
(7) wind wheel speed measurement device:
Be the photoconductive structure speed measurement device, be installed on the torus;
4. power take-off
Power output gear is fixedly mounted on the wheel shaft, connects speed change gear;
5. generator set
Power: 120MW.
The mounting point: body below in wind-tunnel hole links to each other with wheel shaft with transmission shaft.
Claims (5)
1. tunnel pressurized wind-power generating system of central siphon ring-current is characterized in that: with an end of central siphon ring-current wind tunnel device towards the direction of the wind comes from.Water conservancy diversion axle (3) is installed in the wind-tunnel (1).At water conservancy diversion axle front end annular impeller (5) is installed.The rotatingshaft of impeller (6) drives generator (7).
2. the wind tunnel device in the claim 1 is meant that wind-tunnel hole body is columniform cylindrical member, is to be made of reinforced concrete, steel, plastics, timber or other materials, can according to the direction of the wind comes from move towards.
3. the wind tunnel device in the claim 1 also can be the dumbbell shaped member that the front end bore shrinks gradually, the rear end bore amplifies gradually.
4. the water conservancy diversion central siphon in the claim 1 is meant the Olive Shape tubular member of installing in the body of wind-tunnel hole, for steering flow moves towards the central siphon outside, forms the ring-type flow field, improves the device of air-flow moment.The central siphon front end links to each other with water conservancy diversion central siphon front cone (2) bottom that diameter amplifies gradually, and the tip is towards the direction of the wind comes from, and the rear end links to each other with water conservancy diversion central siphon back cone (4) bottom that diameter shrinks gradually, and the tip is towards Way out.
5. the annular impeller in the claim 1 is meant the slewing gear towards the direction of the wind comes from, absorption blast, acquisition wind energy.Form according to annular arrangement by some blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100427615A CN102128136A (en) | 2010-01-14 | 2010-01-14 | Axial tube circular current wind tunnel-pressurized wind energy generating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100427615A CN102128136A (en) | 2010-01-14 | 2010-01-14 | Axial tube circular current wind tunnel-pressurized wind energy generating system |
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| CN102128136A true CN102128136A (en) | 2011-07-20 |
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| CN2010100427615A Pending CN102128136A (en) | 2010-01-14 | 2010-01-14 | Axial tube circular current wind tunnel-pressurized wind energy generating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673347A (en) * | 2016-04-07 | 2016-06-15 | 四川双绿科技有限公司 | Turbine axial flow rotation-direction pressurization type wind power generation device |
-
2010
- 2010-01-14 CN CN2010100427615A patent/CN102128136A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673347A (en) * | 2016-04-07 | 2016-06-15 | 四川双绿科技有限公司 | Turbine axial flow rotation-direction pressurization type wind power generation device |
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Application publication date: 20110720 |