CN109185041A - A kind of female porous type wind energy conversion system energizer - Google Patents
A kind of female porous type wind energy conversion system energizer Download PDFInfo
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- CN109185041A CN109185041A CN201811196596.1A CN201811196596A CN109185041A CN 109185041 A CN109185041 A CN 109185041A CN 201811196596 A CN201811196596 A CN 201811196596A CN 109185041 A CN109185041 A CN 109185041A
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- energy conversion
- conversion system
- wind energy
- mainboard
- perforated baffle
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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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- 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)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a kind of female porous type wind energy conversion system energizers, including perforated baffle (1), are used to support or move the pedestal (2) and bracket (3) of perforated baffle (1)；The perforated baffle (1) is axially symmetric structure；The perforated baffle (1) includes the subplate (5) of intermediate mainboard (4) and two sides, hole (6) are dispersed on mainboard (4) and subplate (5), the mainboard (4) is parallel with wind energy conversion system Plane of rotation, and the distance between mainboard (4) and wind energy conversion system Plane of rotation are 0~7 times of mainboard intermediate altitude；The subplate (5) and wind energy conversion system Plane of rotation are in 0~90 degree of angle, and along air main flow direction direction, are in gradually-reducing shape.The present invention can efficiently utilize wind energy conversion system inferior lobe cusp height low speed wind-resources below, can be improved wind energy conversion efficiency, reduce project cost, and is environmental-friendly, suitable for distributed Wind Power Project exploitation.
Description
Technical field
The present invention relates to technical field of wind power generation, more particularly to a kind of female porous type wind energy conversion system energizer.
Background technique
As a kind of cleaning, renewable energy, wind power generation industry obtains rapid development in the whole world.According to Global Wind-energy committee member
GWEC statistics, ended for the end of the year 2017, and global wind-powered electricity generation adds up installed capacity 539GW, wherein and China adds up installed capacity 188.4GW,
Wind-power electricity generation amount accounts for about the 4.8% of national electricity consumption.Wind-power electricity generation still has very big development prospect, especially in distributed wind
Power generation and low wind speed wind power generation field, prospect are considerable.
Wind-driven generator is normally operated in the bottom of atmospheric boundary layer, and inferior atmospheric layer boundary layer have wind shear it is larger,
Many unfavorable factors such as wind speed is lower and turbulence intensity is larger, therefore in order to efficiently, smoothly generate electricity, it often has to improve
The height of windmill tower frame, to substantially increase the construction cost of wind energy conversion system.2018, National Energy Board was successively sent out again
Cloth phases out the postal questionaire of wind-powered electricity generation subsidy and wind-powered electricity generation cheap internet access, therefore, in this case, carries out technology leather
Newly, wind-powered electricity generation construction cost is reduced, raising wind-resources utilization rate seems more extremely urgent for the development of wind-powered electricity generation enterprise.
CN108204330A discloses a kind of wind energy conversion system energizer, and fairshaped deflector is arranged in front of wind energy conversion system, with
The air velocity for improving wind turbine impeller region achievees the purpose that improve wind turbine power generation amount, while going back in a particular embodiment
It is related to circulating type wind-force energizer and the arranged type wind-force energizer suitable for multicomputer.But there are following for the energizer
Insufficient: 1) deflector and ground all have inclination angle, and the area that on the one hand effectively keeps out the wind is smaller, unknown to upper air speedup effect
It is aobvious, on the other hand easily vertical load is caused to fluctuate；2) deflector is stuffy entity structure, one side deflector upstream and downstream pressure
Power difference can be very big, on the other hand can below the deflector rear and wind energy conversion system between form high shear force layer；3) circulating type is laid out
In, the deflector in wind energy conversion system Plane of rotation rear will lead to the decline of wind energy conversion system power；4) deflector uses contour pattern, leads
Flowing plate influences greatly blade tip position under wind energy conversion system, and small on the influence of wind energy conversion system left and right blade tip position, and energization effect does not reach most
It is excellent.
Summary of the invention
In view of the above drawbacks of the prior art, technical problem to be solved by the invention is to provide a kind of female porous types
Wind energy conversion system energizer can efficiently utilize wind energy conversion system inferior lobe cusp height low speed wind-resources below, can be improved wind energy conversion
Efficiency reduces project cost, and environmental-friendly, suitable for distributed Wind Power Project exploitation.
To achieve the above object, the present invention provides a kind of female porous type wind energy conversion system energizers, including porous water conservancy diversion
Plate, the pedestal and bracket for being used to support or moving perforated baffle；Perforated baffle includes the subplate of intermediate mainboard and two sides,
Hole is dispersed on mainboard and subplate, the mainboard is parallel with wind energy conversion system Plane of rotation, between mainboard and wind energy conversion system Plane of rotation
Distance be 0~7 times of mainboard intermediate altitude；The subplate and wind energy conversion system Plane of rotation are in 0~90 degree of angle, and along air master
Direction is flowed to, is in gradually-reducing shape.
Above-mentioned perforated baffle is axially symmetric structure；The perforated baffle is equal thickness or upper-thin-lower-thick structure, with thickness
Spending the vertical section in direction is not contour space curved surface.
The height of above-mentioned perforated baffle first increase along its length from the central position reduce afterwards or first increase it is rear constant.
Above-mentioned main board length l1For 2.0~2.4 times of wind energy conversion system radius R, the height h of main plate center position1With wind turbine hub
Height H ratio is 0.05~0.35, alongst moves, is highly gradually increased；The mainboard height profile line is radius
r1The circular arc of=0.65~0.95 times of wind turbine hub height.
Said base length l3With perforated baffle length l2Ratio be 0.6~1.0.
The two sides of above-mentioned perforated baffle are equipped with the bracket as Auxiliary support.
Said base and bracket are rigid structure, are divided into movable type or two kinds fixed, fixed for pedestal and bracket point
Earth's surface is not fixed on by ground, pin or bolt, movable type is pedestal and bracket by installing universal wheel conduct in root
Support, along ground moving or rotation.
The porosity of above-mentioned mainboard is bigger than the porosity of subplate, and the porosity ranges of the mainboard are 5%~35%, institute
The porosity ranges for stating subplate are 0%~10%.
Above-mentioned female porous type wind energy conversion system energizer is mounted on wind energy conversion system windward side, perpendicular to the ground, and along wind energy conversion system
Rotation centerline is symmetrical.
Various shape can be used in above-mentioned hole, such as honeycombed, circle or rectangle.
The beneficial effects of the present invention are:
1. improving the utilization rate of wind energy.By not contour perforated baffle, adapt to Axis Wind Turbine With A Tip Vane away from ground away from
It is different from the variation with phase angle, the kinetic energy of the velocity air of atmospheric boundary layer bottom is transported to wind turbine impeller region,
Effective accelerating region is larger, improves the average speed of wind turbine impeller area windward side, improves the output power of unit.
2. reducing the load fluctuation of unit.Since the air velocity close to wind turbine impeller area lower half portion is mentioned
Height, so that the average shear force of wind turbine impeller area windward side is reduced, meanwhile, the turbulent flow of incoming flow is also reduced to a certain extent
Intensity reduces the inhomogeneities of pneumatic equipment bladess stress, improves service life.
3. structure is simple, economic cost is low, highly-safe.Deflector uses porous structure, less with material, at low cost, together
When porous structure bear the thrust from air it is smaller, conducive to deflector structure stability and unit run safety, can
For it is built, building and do not building Wind Power Project.
4. environmental-friendly.On the one hand, perforated baffle can play the effect of windbreak, reduce dust storm to subaerial shadow
It rings；On the other hand, zone of silence and no light zone not will form at deflector rear, it is smaller to local soil and ozone deplation.
5. adapting to a variety of wind regime.When wind vector, energizer can be moved integrally by mobile adjustable pedestal, to protect
For card under wind direction small range situation of change, the deflector area that effectively keeps out the wind is larger.
Detailed description of the invention
Fig. 1 is a kind of female porous type wind energy conversion system energizer schematic illustration of the invention；
Fig. 2 is a kind of structural schematic diagram of female porous type wind energy conversion system energizer of the invention；
Fig. 3 is the scheme of installation of the embodiment of the present invention 1；
Fig. 4 is the top view of Fig. 3；
Fig. 5 is the scheme of installation of the embodiment of the present invention 2.
Specific embodiment
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to Fig. 1, when air is flowed in front of deflector, by the blocking effect of deflector, segment fluid flow can be to deflector four
Zhou Huiju particularly forms local flow at high speed area in deflector back upper place, pneumatic equipment bladess are run in flow at high speed area, defeated
Power can get a promotion out, and be influenced by the conservation of energy, and deflector dead astern then will form low-velocity wake.
Referring to fig. 2, the present invention provides a kind of female porous type wind energy conversion system energizer, including perforated baffle 1, pedestals
2 and bracket 3.Perforated baffle 1 is axially symmetric structure, with a thickness of upper-thin-lower-thick or uniform thickness, the height of perforated baffle 1 from
Center first increase along its length reduce afterwards or first increase it is rear constant；Perforated baffle 1 is divided to for mainboard 4 and subplate 5 two
Point, intermediate 4 region of mainboard is parallel with wind energy conversion system Plane of rotation, and 5 region of two sides subplate and wind energy conversion system Plane of rotation are in certain
Angle.
Hole 6 is dispersed on perforated baffle 1, wherein 4 porosity of mainboard is larger, and 5 porosity of subplate is smaller；2 He of pedestal
Bracket 3 plays the role of supporting perforated baffle 1, and pedestal 2 and bracket 3 are rigid structure, is divided into movable type or two kinds fixed,
Fixed to be directly fixed on earth's surface by ground, pin or bolt etc. for pedestal 2 and bracket 3, movable type is pedestal 2 and bracket 3
It is used as support by installing universal wheel 7 in root, it can be along ground moving or rotation.
Perforated baffle 1 is equal thickness or upper-thin-lower-thick structure and the vertical section of thickness direction is that not equal high spatials are bent
Face.Perforated baffle intermediate length l1(l1Ratio with wind energy conversion system radius R is 2.0~2.4) range is mainboard 4,4 center of mainboard
The height h of position1Ratio with wind turbine hub height H is 0.05~0.35, is alongst moved, and height gradually increases
Greatly, height profile line is radius r1The circular arc of=0.65~0.95H；And length l1To l2Range (l2≧l1, l2With wind energy conversion system radius
The ratio of R is 2.0~3.6) it is subplate 5,5 height of subplate is r by radius2(r2>0.25h1) arc transition after be gradually reduced
Or it remains unchanged.
Mainboard 4 is parallel with wind energy conversion system Plane of rotation, and the distance between mainboard 4 and wind energy conversion system Plane of rotation L are among mainboard 4
Height h10~7 times；And there are angle α (α=0~90 degree) between subplate 5 and wind energy conversion system Plane of rotation, and along air mainstream
To direction, subplate 5 is in gradually-reducing shape.
Various shape can be used in hole 6 on perforated baffle 1, such as: honeycomb character, circle, rectangle and other polygons
Deng.Hole is uniformly distributed on mainboard 4, and porosity is larger, and porosity is 5%~35%；Hole is uniformly distributed on subplate 5, hole
Degree is smaller, and porosity is 0%~10%.
Pedestal 2 plays the role of support or mobile perforated baffle 1, and pedestal 2 is arranged along the direction of extension of perforated baffle 1,
The length l of pedestal 23With 1 length l of perforated baffle2Ratio be 0.6~1.0.Bracket 3 is respectively arranged in 1 liang of perforated baffle
Side, quantity are no less than 2.
Embodiment 1:
It is 4.0m with radius in conjunction with Fig. 3 and Fig. 4, for hub height is the horizontal-shaft wind turbine of 8.3m: recessed using movement
Formula porous type baffle arrangement pattern, perforated baffle main board length are 9.0m, and mainboard intermediate altitude is 2.8m, mainboard porosity
It is 35%, subplate porosity is 10%, total length 12.0m, with a thickness of 0.35m, maximum height 4.7m, perforated baffle pair
Plate and wind energy conversion system Plane of rotation angle are 45 degree, and spacing is 10.0m, bracket between perforated baffle and wind energy conversion system Plane of rotation
It is 6 sets.
Embodiment 2:
On the basis of Fig. 3 and Fig. 4, in conjunction with Fig. 5, use perforated baffle subplate and wind energy conversion system Plane of rotation angle for 0 degree
Embodiment, i.e. perforated baffle are whole parallel with wind energy conversion system Plane of rotation.
In the specific implementation process, the thickness of perforated baffle, material, the material of bracket, width, material of pedestal etc.
Can according to the actual situation depending on.
The present invention achieves satisfied application effect through validation trial.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be within the scope of protection determined by the claims.
Claims (10)
1. a kind of female porous type wind energy conversion system energizer, which is characterized in that including perforated baffle (1), be used to support or move
The pedestal (2) and bracket (3) of dynamic perforated baffle (1)；
The perforated baffle (1) includes the subplate (5) of intermediate mainboard (4) and two sides, is distributed on mainboard (4) and subplate (5)
Hole (6), the mainboard (4) is parallel with wind energy conversion system Plane of rotation, and the distance between mainboard (4) and wind energy conversion system Plane of rotation are
0~7 times of mainboard intermediate altitude；The subplate (5) and wind energy conversion system Plane of rotation are in 0~90 degree of angle, and along air main flow direction
Direction is in gradually-reducing shape.
2. female porous type wind energy conversion system energizer according to claim 1, which is characterized in that the perforated baffle
It (1) is axially symmetric structure；The perforated baffle (1) is equal thickness or upper-thin-lower-thick structure, the section vertical with thickness direction
For not contour space curved surface.
3. female porous type wind energy conversion system energizer according to claim 1, which is characterized in that the perforated baffle
(1) height first increase along its length from the central position reduce afterwards or first increase it is rear constant.
4. female porous type wind energy conversion system energizer according to claim 1, which is characterized in that mainboard (4) the length l1
For 2.0~2.4 times of wind energy conversion system radius R, the height h of mainboard (4) center1With wind turbine hub height H ratio be 0.05~
0.35, it alongst moves, is highly gradually increased；Mainboard (4) the height profile line is radius r1=0.65~0.95
The circular arc of times wind turbine hub height.
5. female porous type wind energy conversion system energizer according to claim 1, which is characterized in that pedestal (2) the length l3
With perforated baffle (1) length l2Ratio be 0.6~1.0.
6. according to claim 1 to female porous type wind energy conversion system energizer described in 5 any one, which is characterized in that described
The two sides of perforated baffle (1) are equipped with the bracket (3) as Auxiliary support.
7. female porous type wind energy conversion system energizer according to claim 6, which is characterized in that the pedestal (2) and branch
Frame (3) is rigid structure, be divided into it is mobile or two kinds fixed, it is fixed for pedestal (2) and bracket (3) pass through respectively ground,
Pin or bolt are fixed on earth's surface, and movable type is pedestal (2) and bracket (3) by installing universal wheel (7) as branch in root
Support, along ground moving or rotation.
8. according to claim 1 to female porous type wind energy conversion system energizer described in 5 any one, which is characterized in that described
The porosity of mainboard (4) is bigger than the subplate (5) porosity, and the porosity ranges of the mainboard (4) are 5%~35%, institute
The porosity ranges for stating subplate (5) are 0%~10%.
9. according to claim 1 to female porous type wind energy conversion system energizer described in 5 any one, which is characterized in that described
Female porous type wind energy conversion system energizer is mounted on wind energy conversion system windward side, perpendicular to the ground, and along wind energy conversion system rotation centerline pair
Claim.
10. according to claim 1 to female porous type wind energy conversion system energizer described in 5 any one, which is characterized in that described
Various shape can be used in the shape of hole (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811196596.1A CN109185041B (en) | 2018-10-15 | 2018-10-15 | A kind of female porous type wind energy conversion system energizer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811196596.1A CN109185041B (en) | 2018-10-15 | 2018-10-15 | A kind of female porous type wind energy conversion system energizer |
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| CN109185041A true CN109185041A (en) | 2019-01-11 |
| CN109185041B CN109185041B (en) | 2019-09-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111809581A (en) * | 2020-07-01 | 2020-10-23 | 河海大学 | Protruding type baffle waterwheel energizer with gradually dense hole |
| WO2020216965A1 (en) * | 2019-04-25 | 2020-10-29 | Winnowave Sl | Wind turbine with wind guide system with load reduction means |
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| US11686283B2 (en) * | 2020-07-01 | 2023-06-27 | Hohai University | Convex type guide plate waterwheel energy increasing device with gradually dense holes |
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| CN109185041B (en) | 2019-09-24 |
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