CN104343626A - Self-protection wind-driven water lifting system with accelerating vanes - Google Patents
Self-protection wind-driven water lifting system with accelerating vanes Download PDFInfo
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- CN104343626A CN104343626A CN201410587332.4A CN201410587332A CN104343626A CN 104343626 A CN104343626 A CN 104343626A CN 201410587332 A CN201410587332 A CN 201410587332A CN 104343626 A CN104343626 A CN 104343626A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 114
- 230000007246 mechanism Effects 0.000 claims abstract description 51
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 230000001105 regulatory effect Effects 0.000 claims abstract description 13
- UJCHIZDEQZMODR-BYPYZUCNSA-N (2r)-2-acetamido-3-sulfanylpropanamide Chemical class CC(=O)N[C@@H](CS)C(N)=O UJCHIZDEQZMODR-BYPYZUCNSA-N 0.000 claims abstract description 6
- 230000007704 transition Effects 0.000 claims abstract description 5
- 238000005086 pumping Methods 0.000 claims description 40
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000002262 irrigation Effects 0.000 description 3
- 238000003973 irrigation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 206010008190 Cerebrovascular accident Diseases 0.000 description 2
- 208000006011 Stroke Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/0608—Rotors characterised by their aerodynamic shape
- F03D1/0633—Rotors characterised by their aerodynamic shape of the blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
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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
- F03D9/28—Wind motors characterised by the driven apparatus the apparatus being a pump or a compressor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by wind motors
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Wind Motors (AREA)
Abstract
The invention relates to a self-protection wind-driven water lifting system with accelerating vanes. The self-protection wind-driven water lifting system comprises a water lifting mechanism directly driven by a wind power transmission mechanism and is characterized in that the cross sections of the vanes adopt NACA series wing sections, the streamline accelerating vanes are started at a low wind speed and output high torques, the vanes comprise low-speed vane tips and large-torsion vane roots and are divided into twenty cross sections from the vane roots to the vane tips for setting mounting angles, and the cross sections are in smooth transition with each other; a water outlet of a water pump of the water lifting mechanism is connected with a water-out pressure regulating cylinder of a hydraulic speed regulating mechanism. The problems of the traditional wind-driven water lifting system, such as large vane number and low wind energy utilizing rate are solved. The hydraulic speed regulating mechanism is driven to act through the skillful utilization of the water pressure of the water outlet of the water pump under large wind power, the wind power transmission mechanism is controlled to timely respond to yaw, and the purpose of automatically protecting system units is achieved. The self-protection wind-driven water lifting system is suitable for the farmland irrigating application of remote areas lack of electricity resources.
Description
Technical field
The invention belongs to technical field of new energies, particularly relate to a kind of self-protection water pumping of the wind-force system with speedup blade.
Background technique
New energy show more and more consequence and effect at the development convexity of current economic society.Wind energy as a kind of cleanliness without any pollution and the renewable energy sources of cheapness and receiving utilize widely.The mode of current Wind Power Utilization mainly contains two kinds, a kind of is be mechanical energy by the device of wind-power electricity generation by wind energy transformation, be that electric energy is connected to the grid and is used by changes mechanical energy by generator again, this Wind Power Utilization mode is studied more deep, ripe wind-powered electricity generation theory and Industry Model are defined, but this wind-power electricity generation needs comparatively complicated control system, also needs the electrical equipment costly such as generator, frequency variator; Another kind utilizes mechanical device that wind energy is converted into mechanical energy to be directly used, and wind-powered water lift belongs to this category.Water pumping of the wind-force just relies on natural wind-resources to drive water pump to complete water lift operation, compare with wind generating unit that its mechanical structure is simple, with low cost, operation and maintenance is convenient, but also there is many insoluble problems in water pumping of the wind-force, the problems such as wind energy utilization that is as more in the number of blade, blade is low, power is less, the coupling of Fan and pump, these all make water pumping of the wind-force await further further investigation.
Chinese patent application 201110316710.1 discloses one " wind water lifting irrigation system ", and it utilizes bent axle formation connecting rod to carry out the wind water lifting irrigation system of water lift; Chinese patent application 200320104849 disclosed " wind-powered water lift " is the wind-powered water lift utilizing multiple wind wheel large size to collect folk songs, but wind wheel still adopts arc multi-vane chip architecture, and the dead-man's device not under strong wind state; Chinese patent application 201310358909.X discloses a kind of wind power water pumping machine, can carry out the wind power water pumping machine of deep layer water lift and shallow-layer water lift, but not improve arc multi-vane chip architecture; Chinese patent application 200810119891.7 discloses a kind of vertical shaft giant energy and energy-collecting wind water lift unit, namely to be connected by multiple vertical shaft giant energy wind energy conversion system the vertical-shaft wind water pumping system of the muck in formed, but because the power coefficient of vertical-shaft fan is lower, moment of torsion is little and the series connection of multiple vertical-shaft fan, not only manufacture cost increases, and the usefulness of Wind Power Utilization is still not high enough; Chinese patent application 201210161249.1 discloses a kind of pneumatic equipment blades made with embedded honeycomb duct, although decrease noise and tip vortex to a certain extent, but because its air outlet is opened at Ye Ding, when air-flow at a high speed ejection time can cause a very large reaction force to blade radial, add the stress load of wheel hub and pylon, both have influence on the wind energy utilization of unit, in turn increase its manufacture cost.
The wind-powered water lift having formed industrial scale is at present the system adopting multiple-blade, the slow-speed of revolution, low wind energy utilization mostly, and the number of blade makes rotor solidity comparatively large more, and the air-flow flowing through wind wheel is less, thus have impact on its output power; Meanwhile, the design of blade adopts traditional plate or arc template mostly, and wind energy utilization efficiency is lower, easily causes the waste of wind energy resources.In sum, the efficiency how improving water pumping of the wind-force system is one of emphasis difficult problem urgently to be resolved hurrily in technical field of new energies.
Summary of the invention
The object of the invention is the deficiency for overcoming existing for prior art and a kind of self-protection water pumping of the wind-force system with speedup blade is provided; the present invention can not only solve the problem that conventional wind water pumping system blade quantity is many, wind energy utilization is low; and utilize the water pressure of the pump outlet under large wind-force to drive hydraulic speed regulating mechanism action dexterously; control wind power transmission wind mechanism and respond driftage in time, reach the object of automatic protective system unit.
According to a kind of self-protection water pumping of the wind-force system with speedup blade that the present invention proposes, comprise by Direct driver water lift mechanism of wind power transmission wind mechanism, wherein: be fixed in cabin by the main shaft of water lift mechanism by the deep groove ball bearing level at two ends, main shaft and I section, vertical shaft arrange bevel gear pair, I section, vertical shaft is fixed on vertical direction, I section, vertical shaft is connected by II section, Hooks coupling universal coupling and vertical shaft, II section, vertical shaft is connected by III section, spline and vertical shaft, in the below of III section, vertical shaft, water pump is set, slotted disk is fixed on the below of III section, vertical shaft, water pump to-and-fro motion is driven by slotted disk, the wheel hub of wind power transmission wind mechanism is arranged on the front end in cabin and stator blade, and cowling is arranged on the front end of wheel hub, the front end of the main shaft of water lift mechanism is connected with the wheel hub being located at front end, cabin by the wheelboss flange of wind power transmission wind mechanism, it is characterized in that described blade is that cross section adopts NACA series aerofoil sections and has the streamlined speedup blade of the starting of low wind speed and high output torque, this blade is the blade root of low tip speed ratio and large torsional angle, from blade root to blade tip, be divided into 20 cross sections established angle is set, between each cross section, adopt smooth transition, the water outlet of the water pump of described water lift mechanism regulates cylinder to be connected with the discharge pressure of hydraulic speed regulating mechanism.
Working principle of the present invention is: the new design of the streamlined speedup blade that the present invention proposes is the corresponding optimal attack angle of peak based on wind energy conversion system Wind Power Utilization curve, and only have the wind energy utilization when pneumatic equipment blades made is in optimal attack angle just can reach maximum principle, therefore each cross section of pneumatic equipment blades made must be reversed, guarantee blade working is in the optimum state, pneumatic equipment blades made when rotated, the air-flow that pressure difference due to upper lower aerofoil makes the air-flow of pressure side can walk around blade tip and suction surface meets formation tip vortex, tip vortex causes the lift coefficient of aerofoil profile to decline, have impact on the wind energy utilization of blade, also the harmful effects such as noise can be produced when rotating speed height, therefore in the pressure side profile thickness biggest place of distance blade tip 15% length of blade, drainage tube has been established, the air-flow of near for blade blade tip place pressure side is caused the trailing edge place ejection of the blade tip of same length, the generation of tip vortex can be reduced like this, improve wind energy utilization, the gas simultaneously sprayed produces a circumferential reaction force to trailing edge, strengthen the rotation effect of blade, reduce the starting wind velocity of water pumping system, further raising wind energy utilization, simultaneously, utilize the water pressure of the pump outlet under large wind-force to drive hydraulic speed regulating mechanism action dexterously, make wind power transmission wind mechanism can respond driftage in time when strong wind state, reach the object of automatic protective system unit particularly wind power transmission wind mechanism blade.
The present invention compared with prior art its remarkable advantage is:
One is the invention solves the problem that conventional wind water pumping system blade quantity is many, wind energy utilization is low, NACA series aerofoil sections is adopted to devise the speedup blade of wind energy conversion system, and optimize its chord length and established angle, the aeroperformance of blade is greatly improved; Test result shows, the present invention, as the system of the wind-force started with low wind speed for power water lift, can reach more than 0.42 at water pumping of the wind-force unit apoplexy energy utilization factor, at least improve 20% compared with 0.35 of conventional wind water lift unit.
Two is that blade of the present invention is provided with drainage tube, not only reduce the generation of tip vortex, the position simultaneously changing air outlet hole makes the rotation of air-flow to blade sprayed have obvious impetus, thus improve the utilization ratio of blade to wind energy, make blade be reduced to 2.7m/s from original starting wind velocity 3m/s.
Three be water pumping of the wind-force system of the present invention compared with the water pumping of the wind-force unit of identical lift, decrease number and the length of blade of blade, and power coefficient significantly promotes, greatly reduces the manufacture cost of water lift unit.
Four is hydraulic speed regulating mechanisms of the present invention by the driving of the water pressure of the pump outlet under large wind-force, makes wind power transmission wind mechanism can respond driftage in time when strong wind state, reaches the effect of automatic protective system unit particularly wind power transmission wind mechanism blade.
Five is that water pumping of the wind-force system of the present invention is provided with Hooks coupling universal coupling and spline on main shaft, is convenient to lifting; After coming into operation, except General Maintenance, automatically can complete water lift, nurse operation without the need to personnel.
Six is that mechanical structure of the present invention is simple and reliable, cheap, has very high social economic benefit, is suitable for the field irrigation of the remote districts lacking electric power resource.
Accompanying drawing explanation
Fig. 1 is the schematic front view of a kind of self-protection water pumping of the wind-force system with speedup blade that the present invention proposes.
Fig. 2 is the schematic front view of the blade that the present invention proposes.
Fig. 3 is the schematic three dimensional views of the blade that the present invention proposes.
Fig. 4 is the schematic diagram of the blade tip drainage tube established in the blade that proposes of the present invention.
Fig. 5 is the schematic three dimensional views of the blade with drainage tube that the present invention proposes.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.
Composition graphs 1, a kind of self-protection water pumping of the wind-force system with speedup blade that the present invention proposes, comprise by Direct driver water lift mechanism of wind power transmission wind mechanism, wherein: be fixed in cabin (15) by the main shaft (6) of water lift mechanism by deep groove ball bearing (5) level at two ends, main shaft (6) and I section, vertical shaft (9) arrange bevel gear pair (8), vertical shaft I section (9) is fixed on vertical direction, I section, vertical shaft (9) is connected by Hooks coupling universal coupling (23) and vertical shaft II section (24), II section, vertical shaft (24) is connected by spline (22) and vertical shaft III section (25), in the below of vertical shaft III section (25), water pump (28) is set, slotted disk (26) is fixed on the below of vertical shaft III section (25), water pump (28) to-and-fro motion is driven by slotted disk (26), the wheel hub (2) of wind power transmission wind mechanism is arranged on the front end in cabin (15) and stator blade (1), and cowling (3) is arranged on the front end of wheel hub (2), the front end of the main shaft (6) of water lift mechanism is connected with the wheel hub (2) being located at cabin (15) front end by the wheelboss flange (4) of wind power transmission wind mechanism, described blade (1) adopts NACA series aerofoil sections for cross section and has the streamlined speedup blade of the starting of low wind speed and high output torque, the blade root that this blade (1) is low tip speed ratio and large torsional angle, from blade root to blade tip, be divided into 20 cross sections established angle is set, between each cross section, adopt smooth transition, the water outlet of water pump (28) and the discharge pressure of hydraulic speed regulating mechanism of described water lift mechanism regulate cylinder (12) to be connected.
Composition graphs 2 and Fig. 3, the further optimized project of the self-protection water pumping of the wind-force system with speedup blade that the present invention proposes is:
The established angle in each cross section of blade of the present invention (1) and the parameter of chord length are respectively as shown in following table 1 and table 2:
Table 1: the established angle parameter list in the cross section of blade (1)
| Cross section sequence number | Established angle (°) | Cross section sequence number | Established angle (°) |
| 1001 | 40.14 | 1011 | 22.00 |
| 1002 | 40.14 | 1012 | 20.29 |
| 1003 | 38.23 | 1013 | 18.67 |
| 1004 | 37.87 | 1014 | 17.12 |
| 1005 | 35.27 | 1015 | 15.63 |
| 1006 | 32.69 | 1016 | 14.13 |
| 1007 | 30.23 | 1017 | 12.58 |
| 1008 | 27.94 | 1018 | 10.86 |
| 1009 | 25.81 | 1019 | 8.66 |
| 1010 | 23.84 | 1020 | 5.92 |
Be 6 power matchings from blade root to blade tip established angle and cross section number, established angle fit equation is:
Y＝-9.21×10
-7x
6+8.33×10
-5x
5-3.71×10
-3x
4+8.39×10
-2x
3-0.899x
2+2.06x+38.86；
Table 2: the established angle chord length parameter table in the cross section of blade (1)
| Cross section sequence number | Chord length (m) | Cross section sequence number | Chord length (m) |
| 1001 | 0.20 | 1011 | 0.44 |
| 1002 | 0.25 | 1012 | 0.43 |
| 1003 | 0.30 | 1013 | 0.42 |
| 1004 | 0.34 | 1014 | 0.40 |
| 1005 | 0.39 | 1015 | 0.39 |
| 1006 | 0.42 | 1016 | 0.37 |
| 1007 | 0.44 | 1017 | 0.35 |
| 1008 | 0.45 | 1018 | 0.33 |
| 1009 | 0.45 | 1019 | 0.29 |
| 1010 | 0.45 | 1020 | 0.12 |
Blade (1) is 7 power matchings from blade root to the chord length of blade tip blade and cross section number, and chord length fit equation is:
Y＝-9.60×10
-8x
7+6.85×10
-6x
6-1.99×10
-4x
5+3.07×10
-3x
4-2.64×10
-2x
3+1.21×10
-1x
2-2.18×10
-1x+0.37；
Blade quantity is 6, is evenly distributed on the circumference of wheel hub (2).
Composition graphs 4 and Fig. 5, blade of the present invention (1) arranges the inlet hole (32) of drainage tube (31) on the pressure side of distance blade tip 15% length of blade, the fraction of blade tip pressure side is caused the trailing edge of blade tip, and spray from the air outlet hole (33) of the drainage tube (31) of blade tip trailing edge.
The quantity of drainage tube of the present invention (31) is 2, the inlet hole (32) of drainage tube (31) is arranged on the pressure side profile thickness biggest place of blade (1) distance blade tip 15% length of blade, the air outlet hole (33) of the drainage tube (31) of blade tip trailing edge is positioned at the blade tip trailing edge place of same length, and diameter is no more than 50% of blade tip trailing edge thickness.
Drainage tube of the present invention (31) is by the inner vertical pipe to suction surface of the pressure side penetrating blade (1) of blade (1).
Hydraulic speed regulating mechanism of the present invention comprises discharge pressure and regulates cylinder (12), oil pump (11), oil dispenser (10), oil hydraulic cylinder (19), guide rail annulus platform (18), leverage (16) and empennage (7), wherein: discharge pressure regulates cylinder (12) to be fixed on pylon (27) bottom, its piston shaft is connected with oil pump (11) piston, the oil pipe output terminal of oil pump (11) is connected with oil dispenser (10), oil dispenser (10) is connected with oil hydraulic cylinder (19), this oil hydraulic cylinder (19) upper end supporting guide annulus platform (18), the fulcrum of leverage (16) is positioned at the bottom sharp corner in cabin (15), leverage (16) is tangent by universal wheels (17) and guide rail annulus platform (18), the quantity of described oil hydraulic cylinder (19) is 3, is evenly arranged in pylon (27) circumferentially.
Leverage of the present invention (16) end is connected with empennage (7) by spring (13) by wire rope pile warp leading block (14), makes empennage under strong wind state deflect the rotational velocity of adjusting vane.
Parameters of operating part and the matching requirements of the self-protection water pumping of the wind-force system with speedup blade of the present invention's proposition are as follows:
Blade of the present invention (1) adopts NACA series aerofoil sections for cross section and has the streamlined speedup blade of the starting of low wind speed and high output torque, blade (1) adopts the low tip speed ratio of 1.8 and large established angle blade root, 20 its established angles of Cross section Design are divided into from blade root to blade tip, smooth transition is adopted between cross section and cross section
Blade root established angle is 40.14 °, and blade tip established angle is 5.92 °, and be 6 power matchings from blade root to blade tip established angle and cross section number, fit equation is:
Y＝-9.21×10
-7x
6+8.33×10
-5x
5-3.71×10
-3x
4+8.39×10
-2x
3-0.899x
2+2.06x+38.86；
The chord length 0.2m at blade root place, the chord length at blade tip place is 0.12m, and the chord length of blade (1) follows blade tip and cross section number to be 7 power matchings from leaf, and fit equation is:
Y＝-9.60×10
-8x
7+6.85×10
-6x
6-1.99×10
-4x
5+3.07×10
-3x
4-2.64×10
-2x
3+1.21×10
-1x
2-2.18×10
-1x+0.37；
The pressure side of blade (1) distance tip segment 15% chord length length of blade arranges drainage tube (31), the fraction of blade tip pressure side is caused the trailing edge of blade tip, the quantity of drainage tube (31) is 2, the inlet hole (32) of drainage tube (31) is arranged on the pressure side aerofoil profile maximum ga(u)ge place of blade (1) distance blade tip 15% length of blade, the air outlet hole (33) of the drainage tube (31) of blade tip trailing edge is positioned at the blade tip trailing edge place of same length, drainage tube (31) is by the inner vertical pipe to suction surface of the pressure side penetrating blade (1) of blade (1), when blade (1) rotates, because its pressure side air pressure is higher than suction surface, air-flow spontaneously enters from the inlet hole (32) of the drainage tube (31) of blade (1) pressure side, spray from the air outlet hole (33) of the drainage tube (31) of blade tip trailing edge, avoid a part of air-flow to cross formation vortex from the air-flow that blade tip walks around blade (1) and suction surface, decrease the generation of tip vortex, improve lift coefficient, can more than 0.42 be reached at water pumping of the wind-force unit apoplexy energy utilization factor, the air-flow of blade tip trailing edge place ejection simultaneously enhances the turning effect of blade, wind-force drives blade rotary, blade is delivered to water lift mechanism by rotating the moment of torsion produced.
The main shaft (6) of water lift mechanism is fixed in cabin (19) by deep groove ball bearing (5) level at two ends, main shaft (6) and I section, vertical shaft (9) arrange bevel gear pair (8), and this bevel gear pair (8) is for one-level bevel gear is secondary, its velocity ratio is 1:2; The error causing causing in installation for elimination vertical shaft (6) is oversize and lifting are conveniently, I section, vertical shaft (9) is connected by Hooks coupling universal coupling (23) and vertical shaft II section (24), II section, vertical shaft (24) is connected by spline (22) and vertical shaft III section (25), in the below of vertical shaft III section (25), water pump (28) is set, drive water pump (28) to-and-fro motion by slotted disk (26), make water rise to upper pond (30) from lower reservoir (29); Main shaft (6) front end of water lift mechanism is connected with the wheel hub (2) being located at cabin (15) front end by the wheelboss flange (4) of wind power transmission wind mechanism; The water outlet of water pump (28) and the discharge pressure of hydraulic speed regulating mechanism of described water lift mechanism regulate cylinder (12) to be connected.
Described hydraulic speed regulating mechanism comprises water pressure and regulates cylinder (12), oil pump (11), oil dispenser (10), oil hydraulic cylinder (19), guide rail annulus platform (18), leverage (16) and empennage (7), wherein: discharge pressure regulates cylinder (12) to be fixed on the bottom of pylon (27), its piston shaft is connected with the piston of oil pump (11), the oil pipe output terminal of oil pump (11) is connected with the oil dispenser (10) of pylon (27) top, this oil dispenser (10) is connected with circumferentially equally distributed oil hydraulic cylinder (19), oil hydraulic cylinder (19) upper end supports a guide rail annulus platform (18), leverage (16) is tangent by universal wheels (17) and guide rail annulus platform (18), leverage (16) end is connected with empennage (7) by spring (13) by wire rope pile warp leading block (14), when strong wind comes interim, blade (1) faster rotational speed, water pump (28) water outlet pressure increase, discharge pressure is made to regulate the piston of cylinder (12) upwards, promote oil pump (11) piston upwards in parallel, oil to be uniformly distributed to 3 oil hydraulic cylinders (19) on guide rail annulus platform (18) by the oil pipe output terminal of oil pump (11) by oil dispenser (10), promote guide rail annulus platform (18) upwards, make leverage (16) one end upwards, and allow empennage (7) deflect by leading block (14), the blade of wind power transmission wind mechanism (1) is made to depart from direction windward, to reach the effect of automatic protection unit of the present invention particularly blade (1).
The specific embodiment of the self-protection water pumping of the wind-force system with speedup blade that the present invention proposes is as follows:
Embodiment 1: when lift be 5m, incoming flow wind speed be 2.7m/s time, the blade (1) of the self-protection water pumping of the wind-force unit with speedup blade of the present invention starts to rotate, and now Direct driver water lift mechanism can start working and carry out water lift; The stabilization of speed of blade (1) when wind speed is 3m/s, now the rotating speed of load-carrying water pumping of the wind-force unit blade (1) is 25r/min; When wind speed increases to the rated wind speed of 8m/s, the rotating speed of water pumping of the wind-force unit blade (1) is 75r/min, and water lift flow when lift is 5m is 25m
3/ h ~ 30m
3/ h, wind energy utilization>=0.42.
Embodiment 2: when lift be 9m, incoming flow wind speed be 2.7m/s time, the blade (1) of the self-protection water pumping of the wind-force unit with speedup blade of the present invention has started to rotate, when water pumping of the wind-force unit is unloaded, the rotating speed of blade (1) is 27r/min, and now wind power transmission wind mechanism does not also drive water lift institution staff; When wind speed arrives 3m/s, water pumping of the wind-force unit drives water lift mechanism to start working and water lift; Blade (1) stabilization of speed of water pumping of the wind-force unit when wind speed is 3.5m/s, now due to load on unit band, the rotating speed of blade (1) reaches 30r/min; When wind speed increases to the rated wind speed of 8m/s, the rotating speed of water pumping of the wind-force unit blade (1) is 65r/min, water lift flow is 10m
3/ h ~ 15m
3/ h, wind energy utilization>=0.42.
The explanation do not related in the specific embodiment of the present invention belongs to technology well known in the art, can be implemented with reference to known technology.
The present invention, through validation trial, achieves satisfied effect.
Claims (8)
1. the self-protection water pumping of the wind-force system with speedup blade, comprise by Direct driver water lift mechanism of wind power transmission wind mechanism, wherein: be fixed in cabin (15) by the main shaft (6) of water lift mechanism by deep groove ball bearing (5) level at two ends, main shaft (6) and I section, vertical shaft (9) arrange bevel gear pair (8), vertical shaft I section (9) is fixed on vertical direction, I section, vertical shaft (9) is connected by Hooks coupling universal coupling (23) and vertical shaft II section (24), II section, vertical shaft (24) is connected by spline (22) and vertical shaft III section (25), in the below of vertical shaft III section (25), water pump (28) is set, slotted disk (26) is fixed on the below of vertical shaft III section (25), water pump (28) to-and-fro motion is driven by slotted disk (26), the wheel hub (2) of wind power transmission wind mechanism is arranged on the front end in cabin (15) and stator blade (1), and cowling (3) is arranged on the front end of wheel hub (2), the front end of the main shaft (6) of water lift mechanism is connected with the wheel hub (2) being located at cabin (15) front end by the wheelboss flange (4) of wind power transmission wind mechanism, it is characterized in that described blade (1) adopts NACA series aerofoil sections for cross section and has the streamlined speedup blade of the starting of low wind speed and high output torque, the blade root that this blade (1) is low tip speed ratio and large torsional angle, from blade root to blade tip, be divided into 20 cross sections established angle is set, between each cross section, adopt smooth transition, the water outlet of water pump (28) and the discharge pressure of hydraulic speed regulating mechanism of described water lift mechanism regulate cylinder (12) to be connected.
2. the self-protection water pumping of the wind-force system with speedup blade according to claim 1, is characterized in that the parameter of the established angle in each cross section of described blade (1) and chord length is respectively as shown in following table 1 and table 2:
Table 1: the established angle parameter list in the cross section of blade (1)
Be 6 power matchings from blade root to blade tip established angle and cross section number, established angle fit equation is:
Y＝-9.21×10
-7x
6+8.33×10
-5x
5-3.71×10
-3x
4+8.39×10
-2x
3-0.899x
2+2.06x+38.86；
Table 2: the established angle chord length parameter table in the cross section of blade (1)
Blade (1) is 7 power matchings from blade root to the chord length of blade tip blade and cross section number, and chord length fit equation is:
Y＝-9.60×10
-8x
7+6.85×10
-6x
6-1.99×10
-4x
5+3.07×10
-3x
4-2.64×10
-2x
3+1.21×10
-1x
2-2.18×10
-1x+0.37；
Blade quantity is 6, is evenly distributed on the circumference of wheel hub (2).
3. the self-protection water pumping of the wind-force system with speedup blade according to claim 1; it is characterized in that described blade (1) arranges the inlet hole (32) of drainage tube (31) on the pressure side of distance blade tip 15% length of blade; the fraction of blade tip pressure side is caused the trailing edge of blade tip, and spray from the air outlet hole (33) of the drainage tube (31) of blade tip trailing edge.
4. the self-protection water pumping of the wind-force system with speedup blade according to claim 3; it is characterized in that the quantity of described drainage tube (31) is 2; the inlet hole (32) of drainage tube (31) is arranged on the pressure side profile thickness biggest place of blade (1) distance blade tip 15% length of blade; the air outlet hole (33) of the drainage tube (31) of blade tip trailing edge is positioned at the blade tip trailing edge place of same length, and diameter is no more than 50% of blade tip trailing edge thickness.
5. the self-protection water pumping of the wind-force system with speedup blade according to claim 3 or 4, is characterized in that described drainage tube (31) is by the inner vertical pipe to suction surface of the pressure side penetrating blade (1) of blade (1).
6. the self-protection water pumping of the wind-force system with speedup blade according to claim 1, it is characterized in that described hydraulic speed regulating mechanism comprises discharge pressure and regulates cylinder (12), oil pump (11), oil dispenser (10), oil hydraulic cylinder (19), guide rail annulus platform (18), leverage (16) and empennage (7), wherein: discharge pressure regulates cylinder (12) to be fixed on pylon (27) bottom, its piston shaft is connected with the piston of oil pump (11), the oil pipe output terminal of oil pump (11) is connected with the oil dispenser (10) of pylon (27) top, oil dispenser (10) is connected with oil hydraulic cylinder (19), this oil hydraulic cylinder (19) upper end supporting guide annulus platform (18), the fulcrum of leverage (16) is positioned at the bottom sharp corner in cabin (15), leverage (16) is tangent by universal wheels (17) and guide rail annulus platform (18).
7. the self-protection water pumping of the wind-force system with speedup blade according to claim 6, is characterized in that the quantity of described oil hydraulic cylinder (19) is 3, is evenly arranged in pylon (27) circumferentially.
8. the self-protection water pumping of the wind-force system with speedup blade according to claim 6 or 7, is characterized in that described leverage (16) end is connected with empennage (7) by spring (13) by wire rope pile warp leading block (14).
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| CN201410587332.4A CN104343626B (en) | 2014-10-28 | 2014-10-28 | Self-protection wind-driven water lifting system with accelerating vanes |
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| CN201410587332.4A CN104343626B (en) | 2014-10-28 | 2014-10-28 | Self-protection wind-driven water lifting system with accelerating vanes |
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| CN104343626B CN104343626B (en) | 2017-02-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108223290A (en) * | 2016-12-10 | 2018-06-29 | 水利部牧区水利科学研究所 | A kind of wind-powered water lift |
| CN111058997A (en) * | 2020-01-16 | 2020-04-24 | 诸暨都高风能科技有限公司 | Double-blade irrigateable wind motor |
| CN113187667A (en) * | 2021-04-28 | 2021-07-30 | 水利部牧区水利科学研究所 | Wind power water lifting device with variable water lifting level |
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| CN103597207A (en) * | 2011-06-06 | 2014-02-19 | 卡门·乔治·卡门诺夫 | Hybrid water pressure energy accumulating wind turbine and method |
| CN204299786U (en) * | 2014-10-28 | 2015-04-29 | 河海大学 | A kind of self-protection wind-powered water lift with speedup blade |
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| US6023105A (en) * | 1997-03-24 | 2000-02-08 | Youssef; Wasfi | Hybrid wind-hydro power plant |
| CN102713261A (en) * | 2009-11-03 | 2012-10-03 | 北星公司 | Wind turbine blade |
| CN103597207A (en) * | 2011-06-06 | 2014-02-19 | 卡门·乔治·卡门诺夫 | Hybrid water pressure energy accumulating wind turbine and method |
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| CN108223290A (en) * | 2016-12-10 | 2018-06-29 | 水利部牧区水利科学研究所 | A kind of wind-powered water lift |
| CN111058997A (en) * | 2020-01-16 | 2020-04-24 | 诸暨都高风能科技有限公司 | Double-blade irrigateable wind motor |
| CN113187667A (en) * | 2021-04-28 | 2021-07-30 | 水利部牧区水利科学研究所 | Wind power water lifting device with variable water lifting level |
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|---|---|
| CN104343626B (en) | 2017-02-15 |
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