CN101498275A - Horizontal axle wind mill with S blade tip winglet - Google Patents
Horizontal axle wind mill with S blade tip winglet Download PDFInfo
- Publication number
- CN101498275A CN101498275A CNA2008100332694A CN200810033269A CN101498275A CN 101498275 A CN101498275 A CN 101498275A CN A2008100332694 A CNA2008100332694 A CN A2008100332694A CN 200810033269 A CN200810033269 A CN 200810033269A CN 101498275 A CN101498275 A CN 101498275A
- Authority
- CN
- China
- Prior art keywords
- blade tip
- winglet
- blade
- horizontal
- wind machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Wind Motors (AREA)
Abstract
The invention relates to a wind power generating device, in particular to a horizontal-shaft wind machine with an S-shaped blade tip winglet and more particular to a horizontal-shaft wind machine blade tip tooth-shaped winglet device which has an automatic speed-reduction regulatory function, can improve the wind wheel aerodynamic characteristic, the structural dynamic characteristic, the blade surface dynamic load distribution and the blade tip vortex shedding frequency of the wind machine and can reduce the radiation noise of a wind wheel. The horizontal-shaft wind machine blade tip tooth-shaped winglet device comprises a blade (5), a hub (6), an engine room (7) and a tower base (8), wherein the blade tip of the blade of the wind wheel is provided with a winglet. The horizontal-shaft wind machine blade tip tooth-shaped winglet device is characterized in that a blade tip winglet (4) is in a flat plate shape and is also in a similar triangle shape, and the sloping edge (S) of the blade tip winglet (4) is in a wave shape which is similar to an S shape. The invention improves the combination property of the wind machine by simply installing a tooth-shaped winglet in a flat plate shape on the blade tip of the wind machine under the premise of no alteration of the structural parameters of an original wind machine; the blade tip tooth-shaped winglet adopts a flat plate type structure; and the invention has the advantages of simple structure, short process flow, less working procedure, low manufacturing cost and simple installation.
Description
Technical field
The present invention relates to wind power plant, particularly a kind of horizontal-shaft wind turbine that has S type tip vane.Relate to a kind ofly have automatic stall-adjusted function more specifically, and can improve that wind mill wind wheel aerodynamic characteristic, Structure dynamic characteristics, blade surface dynamic load distribute, blade tip vortex shedding frequency and reduce the little swing device of horizontal-shaft wind turbine blade tip S type of wind wheel radiated noise.
Background technique
Wind energy will play a significant role in the energy system in future as a kind of renewable energy sources of cleaning.Closely during the last ten years, world's wind-power electricity generation is with annual growth 30% left and right sides high speed development.In China, the wind energy conversion system technical research has also obtained progress faster, has successively developed a series of big-and-middle-sized grid type wind-powered electricity generation unit of hundred multikilowatts to MW class, and wherein part of generating units has realized commercialization.
The open at present patent documentation close with invention, as JP2004084590, CN1308594C, CN2270125Y, US4362469, US4093402A, US4003676A, winglet adopts the aerofoil profile identical with wind wheel blade mostly in these documents, having changed the distribution in tail flow field of wind energy conversion system and the circular rector of blade tip distributes, reduced induced drag, improve the efficient of wind energy conversion system, but winglet is an aerofoil profile owing to what adopt in the document, so structure is complicated, operation is many, the fabricating cost height, difficulty is installed
Summary of the invention
The objective of the invention is at complex structure, the difficulty of processing of existing wind wheel tip vane big, technical deficiencies such as fabricating cost height, installation difficulty, a kind of horizontal-shaft wind turbine that has tip vane is provided, stalling characteristics, aerodynamic characteristic, Structure dynamic characteristics, blade surface dynamic load that this winglet can improve wind mill wind wheel in this invention distribute and reduce the wind wheel radiated noise, make the wind energy conversion system energy saving, raise the efficiency.
The object of the invention realizes being finished by following technological scheme:
The present invention includes blade 5, wheel hub 6, cabin 7, tower seat 8, the blade tip place of wind wheel upper blade is provided with winglet, it is characterized in that, tip vane 4 is plate and is similar to triangle, and hypotenuse part S is wavy; Described to be wavy winglet curve hypotenuse S be arc transition, circular arc design corner α=30 °-45 °; The attachment face M of described winglet 1 overlaps with blade tip aerofoil profile section, leading edge straight flange L mounting points is positioned at blade tip aerofoil profile leading edge point a place, attachment face flanging B length is 0.7-0.9 times of blade tip aerofoil profile chord length c, leading edge straight flange L length is 0.9-1.2 times of attachment face flanging B length, back subtended angle β=35 °-55 °; The thickness of the sheet material of described winglet 1 is 0.1-0.4 times of blade tip aerofoil profile maximum ga(u)ge; The material of described S type tip vane 4 is plate timber or glass fibre reinforced plastics or strengthens aluminium sheet.
Advantage of the present invention is under the prerequisite of original wind energy conversion system structural parameter not being changed, by at wind energy conversion system blade tip place the combination property that S type tip vane improves wind energy conversion system being installed simply.S type tip vane among the present invention also makes the wind energy conversion system of this invention have automatic stall-adjusted function on above function basis, has improved the Structure dynamic characteristics of wind energy conversion system, moving frequency curve trend when changing wind wheel work makes its trend that disengaging rotating speed resonance region is arranged, improved the distribution of blade surface dynamic load, blade tip vortex shedding frequency and has reduced the wind wheel radiated noise.And the S type tip vane among the present invention is simple in structure, technological process is short, operation is few, fabricating cost is low, simple installation.
Description of drawings
Fig. 1 is a horizontal-shaft wind turbine overall structure schematic representation of the present invention
Fig. 2 is the structural representation of S type tip vane of the present invention
Fig. 3 is the installation position schematic representation of S type tip vane of the present invention
Fig. 4 installs the A-A generalized section for the present invention
Embodiment
Below in conjunction with drawings and Examples technological scheme of the present invention is further described
1,2,3--center of arc point, 4-winglet, 5-pneumatic equipment blades made, 6-wheel hub, 7-cabin, 8-pylon, 9-blade suction surface, 10-blade pressure surface, I-come flow path direction, II-wind energy conversion system sense of rotation, L-leading edge straight flange, S-streamline hypotenuse, B-attachment face flanging, α-circular arc design corner, R-radius of arc, r1, r2-knuckle radius, M-attachment face, I-for coming flow path direction, β-back subtended angle, a-aerofoil profile leading edge point, b-airfoil trailing edge point, the c-blade tip aerofoil profile string of a musical instrument as accompanying drawing 1～4 signal, the label among the figure is represented respectively:.
The overall structure of the embodiment of the invention mainly is made up of blade 5, wheel hub 6, cabin 7, tower seat 8 as shown in Figure 1.Wind wheel transmission device, generator, regulating device and electric adjusted device thereof, electrical control equipment, oil hydraulic pump etc. are wherein arranged in the cabin 4.The present invention includes blade 5, wheel hub 6, cabin 7, tower seat 8, the blade tip place of wind wheel upper blade is provided with winglet, it is characterized in that, tip vane 4 is plate and is similar to triangle, and hypotenuse part S is wavy; Described to be wavy winglet curve hypotenuse S be arc transition, circular arc design corner α=35 °, back subtended angle β=35 °; The attachment face M of described winglet 1 overlaps with blade tip aerofoil profile section, and leading edge straight flange L mounting points is positioned at blade tip aerofoil profile leading edge point a place, and attachment face flanging B length is 0.9 times of blade tip aerofoil profile chord length c, and leading edge straight flange L length is 1 times of attachment face flanging B length.The thickness of making this winglet sheet material is 0.3 times of blade tip aerofoil profile maximum ga(u)ge.Center of arc's point 3 is 1,2 two a mid point, and the radius of arc R of winglet, knuckle radius r1, r2 are that the center of circle makes winglet end points and the tangent circular arc of circular arc R on the sideline.Wherein, 1 is the intersection point in circular arc design angle line and winglet sideline, and 2 is the center of circle for circular arc design angle line and with the O point.This S type winglet is in shape along coming flow path direction to roll over backward, not under the prerequisite that original wind energy conversion system structural parameter are changed, by this S type tip vane is installed at wind energy conversion system blade tip place, and choose suitable winglet parameter area, can improve the combination property of wind mill wind wheel.The material of S type tip vane 4 is plate timber or glass fibre reinforced plastics or strengthens aluminium sheet.The position of S type winglet: at pneumatic equipment blades made blade tip place, along coming flow path direction to roll over backward, attachment face flanging B overlaps with the blade tip aerofoil profile string of a musical instrument, and leading edge straight flange L mounting points is positioned at blade tip aerofoil profile leading edge point a place.
Though below done to elaborate according to design of the present invention and goal of the invention and enforcement with reference to accompanying drawing; but related domain the common technique personnel can recognize; under the precondition that does not break away from the claim limited range; still can make various improvement and conversion to the present invention, and this improvement and conversion are used still and are belonged to protection scope of the present invention.
Claims (5)
1, a kind of horizontal-shaft wind turbine that has S type tip vane, comprise blade (5), wheel hub (6), cabin (7), tower seat (8), the blade tip place of wind wheel upper blade is provided with winglet, it is characterized in that, tip vane (4) is plate and is similar to triangle, and hypotenuse part (S) is wavy.
2, a kind of horizontal-shaft wind turbine that has S type tip vane according to claim 1 is characterized in that, the described wavy winglet curve hypotenuse (S) that is is arc transition, circular arc design corner α=30 °-45 °, back subtended angle β=35 °-55 °.
3, a kind of horizontal-shaft wind turbine that has S type tip vane according to claim 1, it is characterized in that, the attachment face (M) of described winglet (1) overlaps with blade tip aerofoil profile section, leading edge straight flange (L) mounting points is positioned at blade tip aerofoil profile leading edge point (a) and locates, attachment face flanging (B) length is 0.7-0.9 times of blade tip aerofoil profile chord length (c), and leading edge straight flange (L) length is 0.9-1.2 times of attachment face flanging (B) length.
4, a kind of horizontal-shaft wind turbine that has S type tip vane according to claim 1 is characterized in that, the thickness of the sheet material of described winglet (1) is 0.1-0.4 times of blade tip aerofoil profile maximum ga(u)ge.
5, a kind of horizontal-shaft wind turbine that has S type tip vane according to claim 1 is characterized in that, the material of described S type tip vane (4) is plate timber or glass fibre reinforced plastics or strengthens aluminium sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100332694A CN101498275A (en) | 2008-01-30 | 2008-01-30 | Horizontal axle wind mill with S blade tip winglet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100332694A CN101498275A (en) | 2008-01-30 | 2008-01-30 | Horizontal axle wind mill with S blade tip winglet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101498275A true CN101498275A (en) | 2009-08-05 |
Family
ID=40945508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100332694A Pending CN101498275A (en) | 2008-01-30 | 2008-01-30 | Horizontal axle wind mill with S blade tip winglet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101498275A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266313A (en) * | 2018-02-27 | 2018-07-10 | 青岛华创风能有限公司 | A kind of low pneumatic noise Wind turbines |
| CN110173391A (en) * | 2019-05-24 | 2019-08-27 | 上海电力学院 | A kind of Large marine Axis Wind Turbine With A Tip Vane fusion winglet and wind energy conversion system |
| CN111810353A (en) * | 2020-06-04 | 2020-10-23 | 何立武 | Forward-bent and backward-raised chord blade |
-
2008
- 2008-01-30 CN CNA2008100332694A patent/CN101498275A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266313A (en) * | 2018-02-27 | 2018-07-10 | 青岛华创风能有限公司 | A kind of low pneumatic noise Wind turbines |
| CN110173391A (en) * | 2019-05-24 | 2019-08-27 | 上海电力学院 | A kind of Large marine Axis Wind Turbine With A Tip Vane fusion winglet and wind energy conversion system |
| CN111810353A (en) * | 2020-06-04 | 2020-10-23 | 何立武 | Forward-bent and backward-raised chord blade |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101498276A (en) | Horizontal axle wind mill with blade tip winglet | |
| EP2341245B1 (en) | Apparatus for increasing lift on wind turbine blade | |
| EP2194267B1 (en) | Root sleeve for wind turbine blade | |
| CN206707918U (en) | Waveform trailing edge blade and H type vertical-shaft aerogenerators | |
| CN105545597B (en) | A kind of passive pitch control device of prismatic blade vertical axis aerogenerator | |
| US20100166556A1 (en) | Partial arc shroud for wind turbine blades | |
| CN106382185A (en) | Extension type fan wind wheel or blade and wind driven generator | |
| CN102678469A (en) | Diversion type vertical shaft wind turbine | |
| CN113217272B (en) | Lift-drag composite vertical axis wind turbine for wind-solar integrated power generation system | |
| CN104847579A (en) | Adjustable-blade-attack-angle vertical-axis wind turbine with double-layer wind wheels | |
| CN106640533A (en) | Self-adaptive variable-propeller vertical shaft wind generator driving device and wind generator | |
| CN104500334B (en) | Flapping wing wind turbine with flexible empennage | |
| CN204299786U (en) | A kind of self-protection wind-powered water lift with speedup blade | |
| CN201433856Y (en) | Combined wind driven generator | |
| CN201152230Y (en) | Cross axis wind motor with blade tip winglet | |
| CN201635926U (en) | Device for vertical axis wind-driven generator device | |
| CN101498275A (en) | Horizontal axle wind mill with S blade tip winglet | |
| CN201155424Y (en) | Cross axis wind motor with S -type blade tip winglet | |
| CN106894948A (en) | Based on bionic vertical axis windmill | |
| CN101571102B (en) | Root adjustable horizontal shaft wind-power blade | |
| CN104343626B (en) | Self-protection wind-driven water lifting system with accelerating vanes | |
| CN201621002U (en) | Multistage combined type fan blade | |
| CN209621517U (en) | A kind of adaptive deformed vanes of leading edge that wind energy conversion system starting performance can be improved | |
| CN104314770A (en) | Wind turbine blade with trailing edge flat plate | |
| CN203441675U (en) | Blade of novel horizontal-axis wind turbine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090805 |