CN201152230Y - Cross axis wind motor with blade tip winglet - Google Patents
Cross axis wind motor with blade tip winglet Download PDFInfo
- Publication number
- CN201152230Y CN201152230Y CNU2008200552276U CN200820055227U CN201152230Y CN 201152230 Y CN201152230 Y CN 201152230Y CN U2008200552276 U CNU2008200552276 U CN U2008200552276U CN 200820055227 U CN200820055227 U CN 200820055227U CN 201152230 Y CN201152230 Y CN 201152230Y
- Authority
- CN
- China
- Prior art keywords
- tip
- wind turbine
- alula
- length
- straight flange
- 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.)
- Expired - Fee Related
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 utility model relates to wind power equipment, in particular to a horizontal shaft wind turbine with a tip alula, and more specifically, and more particularly relates to a horizontal shaft wind turbine tip dental pattern alula which has the function of automatic stalling regulation, and can improve the wind wheel aerodynamic characteristics, structure external characteristics, blade surface moving load distribution and tip turbine shedding frequency of a wind turbine and reduce the radiated noise of a wind wheel. The horizontal shaft wind turbine tip dental pattern alula comprises a vane (2), a wheel boss (3), an engine room (4) and a tower base (5), and the tip of the vane on the wind wheel is provided with an alula (1). The tip alula (1) is in the shape of a flat plate and is similar to a triangle, and a sloping side part (s) is in shape of a comb. The horizontal shaft wind turbine tip dental pattern alula has the advantage that on the premise that the prior wind turbine structural parameter is not changed, the combination property of the wind turbine is improved through the simple installation of a flat plate type alula at the tip of the wind turbine. The tip alula in the horizontal shaft wind turbine tip dental pattern alula is in the structure of a flat plate, and the horizontal shaft wind turbine tip dental pattern alula has the advantages of simple structure, short process flow, few process steps, low manufacture cost and simple installation.
Description
Technical field
The utility model relates to wind power plant, particularly a kind of horizontal-shaft wind turbine that has 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 horizontal-shaft wind turbine tip vane device 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 model utility, 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 purpose of this utility model 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 blade tip flute profile winglet is provided, stalling characteristics, aerodynamic characteristic, Structure dynamic characteristics, blade surface dynamic load that this flute profile winglet can improve wind mill wind wheel in this model utility distribute and reduce the wind wheel radiated noise, make the wind energy conversion system energy saving, raise the efficiency.
The utility model purpose realizes being finished by following technological scheme:
The utility model comprises blade 2, wheel hub 3, cabin 4, tower seat 5, and the blade tip place of wind wheel upper blade is provided with winglet 1, and tip vane 1 is plate and is similar to triangle, and hypotenuse part S is comb shape; The hypotenuse that is similar to leg-of-mutton tip vane partly is comb shape, and the longitudinal cross-section of its each broach is triangular in shape; Addendum angle φ=15 of the broach on the winglet curve hypotenuse S °-90 °, the height H of tooth be leading edge straight flange L length 0.1-0.3 doubly, tip circular-arc radius R be tooth height H 0.06-0.2 doubly; The attachment face M of described tip vane 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 trailing edge straight flange h is installed near the trailing edge point b along wing chord c direction; 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, fillet E length is that leading edge straight flange L is 0.1-0.25 times, back subtended angle β=35 °-55 °, and trailing edge straight flange h length is 0.9-1.2 times of fillet E length; The material of described blade tip flute profile winglet 1 is plate timber or glass fibre reinforced plastics or strengthens aluminium sheet.
The utility model has the advantages that under the prerequisite of original wind energy conversion system structural parameter not being changed, by the combination property that plate shaped flute profile winglet improves wind energy conversion system simply is installed at wind energy conversion system blade tip place.Blade tip flute profile winglet in the utility model is because under the effect and special tooth profile of aerodynamic force, satisfying the Structure dynamic characteristics that the wind energy conversion system that also makes this model utility on the above function basis has automatic stall-adjusted function, improved wind energy conversion system, moving frequency curve trend when changing wind wheel work makes its trend that disengaging rotating speed resonance region is arranged, has improved distribution of blade surface dynamic load and blade tip shedding frequence, has reduced the wind wheel radiated noise.And the blade tip flute profile winglet in the utility model adopts flat structure, and 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 utility model
Fig. 2 is the structural representation of the utility model flute profile winglet
Fig. 3 is the installation position schematic representation of the utility model blade tip flute profile winglet
Fig. 4 is that the utility model blade tip flute profile winglet is installed the A-A generalized section
Embodiment
Below in conjunction with drawings and Examples the technical solution of the utility model is further described
Label in the accompanying drawing 1～4 is represented respectively: 1-flute profile winglet, the 2-pneumatic equipment blades made, the 3-wheel hub, the 4-cabin, the 5-pylon, the 6-blade suction surface, the 7-blade pressure surface, I-comes flow path direction, II-wind energy conversion system sense of rotation, B-attachment face flanging, L-leading edge straight flange, h-trailing edge straight flange, the E-fillet, the H-tooth depth, the drift angle of φ-profile of tooth hypotenuse, S-flute profile hypotenuse, the R-tip circular-arc radius, the M-attachment face, I-is for coming flow path direction, B-attachment face flanging, L-leading edge straight flange h-trailing edge straight flange, the E-fillet, the height of H-tooth, φ-addendum angle, a-aerofoil profile leading edge point, b-airfoil trailing edge point, the c-blade tip aerofoil profile string of a musical instrument, β-back subtended angle.
Overall structure of the present utility model mainly is made up of blade 2, wheel hub 3, cabin 4, tower seat 5 as shown in Figure 1.Gear drive, generator, regulating device and electric adjusted device thereof, electrical control equipment, oil hydraulic pump etc. are wherein arranged in the cabin 4.
The winglet 1 of the utility model design is installed in the tip segment of blade 2, installs to connect as shown in Figure 3.Little wing structure as shown in Figure 2, material can be selected plate timber or glass fibre reinforced plastics for use or strengthen the aluminium sheet lightweight material and make.
The utility model embodiment comprises blade 2, wheel hub 3, cabin 4, tower seat 5, and the blade tip place of wind wheel upper blade is provided with winglet 1, and tip vane (1) is plate and is similar to triangle, and hypotenuse part S is comb shape; The hypotenuse that is similar to leg-of-mutton blade tip flute profile winglet partly is comb shape, and the longitudinal cross-section of its each broach is triangular in shape; Addendum angle φ=45 of the broach on the winglet curve hypotenuse S °, the height H of tooth is 0.1 times of leading edge straight flange L length, tip circular-arc radius R is 0.15 times of height H of tooth; The attachment face M of described tip vane 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 trailing edge straight flange h is installed near the trailing edge point b along wing chord c direction; 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, and fillet E length is that leading edge straight flange L is 0.2 times, back subtended angle β=45 °, and trailing edge straight flange h length is 1 times of fillet E length; The material of described blade tip flute profile winglet (1) is plate timber or glass fibre reinforced plastics or strengthens aluminium sheet.Mounting points is positioned at blade tip aerofoil profile leading edge point a place, and trailing edge straight flange (h) is installed near the trailing edge point b along wing chord d direction.
Though below done to elaborate according to the design and the enforcement of the utility model and model utility purpose 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 utility model, and this improvement and conversion are used still and are belonged to protection domain of the present utility model.
Claims (5)
1, a kind of horizontal-shaft wind turbine that has tip vane, comprise blade (2), wheel hub (3), cabin (4), tower seat (5), the blade tip place of wind wheel upper blade is provided with winglet (1), it is characterized in that, tip vane (1) is plate and is similar to triangle, and hypotenuse part (S) is comb shape.
2, a kind of horizontal-shaft wind turbine that has tip vane according to claim 1 is characterized in that, the hypotenuse that is similar to leg-of-mutton tip vane partly is comb shape, and the longitudinal cross-section of its each broach is triangular in shape.
3, a kind of horizontal-shaft wind turbine that has tip vane according to claim 1 and 2, it is characterized in that, addendum angle φ=15 of the broach on the winglet curve hypotenuse (S) °-90 °, the height of tooth (H) be leading edge straight flange (L) length 0.1-0.3 doubly, tip circular-arc radius (R) be 0.06-0.2 times of height (H) of tooth.
4, a kind of horizontal-shaft wind turbine that has tip vane according to claim 1, it is characterized in that, the attachment face (M) of described tip vane (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) to be located, and trailing edge straight flange (h) is installed near the trailing edge point (b) along wing chord (c) direction; 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, fillet (E) length is that leading edge straight flange (L) is 0.1-0.25 times, back subtended angle β=35 °-55 °, trailing edge straight flange (h) length is 0.9-1.2 times of fillet (E) length.
5, a kind of horizontal-shaft wind turbine that has tip vane according to claim 1 is characterized in that, the material of described blade tip flute profile winglet (1) is plate timber or glass fibre reinforced plastics or strengthens aluminium sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200552276U CN201152230Y (en) | 2008-01-30 | 2008-01-30 | Cross axis wind motor with blade tip winglet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200552276U CN201152230Y (en) | 2008-01-30 | 2008-01-30 | Cross axis wind motor with blade tip winglet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201152230Y true CN201152230Y (en) | 2008-11-19 |
Family
ID=40127908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200552276U Expired - Fee Related CN201152230Y (en) | 2008-01-30 | 2008-01-30 | Cross axis wind motor with blade tip winglet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201152230Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835874A (en) * | 2012-11-21 | 2014-06-04 | 西门子公司 | Wind turbine blade with a blade attachmen |
| CN104948396A (en) * | 2015-07-22 | 2015-09-30 | 代元军 | Wind turbine blade adopting serrated blade tip tail edge structure and wind turbine |
| CN104963807A (en) * | 2015-07-16 | 2015-10-07 | 青岛安华新元风能股份有限公司 | Wind driven generator blade |
-
2008
- 2008-01-30 CN CNU2008200552276U patent/CN201152230Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835874A (en) * | 2012-11-21 | 2014-06-04 | 西门子公司 | Wind turbine blade with a blade attachmen |
| CN103835874B (en) * | 2012-11-21 | 2018-08-24 | 西门子公司 | Wind turbine blade with blade attachment |
| CN104963807A (en) * | 2015-07-16 | 2015-10-07 | 青岛安华新元风能股份有限公司 | Wind driven generator blade |
| CN104963807B (en) * | 2015-07-16 | 2017-08-22 | 青岛安华新元风能股份有限公司 | Blade of wind-driven generator |
| CN104948396A (en) * | 2015-07-22 | 2015-09-30 | 代元军 | Wind turbine blade adopting serrated blade tip tail edge structure and wind turbine |
| CN104948396B (en) * | 2015-07-22 | 2017-12-05 | 新疆工程学院 | Blade tip trailing edge is serrated the pneumatic equipment bladess and wind energy conversion system of structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101498276A (en) | Horizontal axle wind mill with blade tip winglet | |
| EP2194267B1 (en) | Root sleeve for wind turbine blade | |
| CN206707918U (en) | Waveform trailing edge blade and H type vertical-shaft aerogenerators | |
| CN104364517A (en) | Twisted blade root | |
| EP2204578A2 (en) | Partial arc shroud for wind turbine blades | |
| CN102678469A (en) | Diversion type vertical shaft wind turbine | |
| CN201152230Y (en) | Cross axis wind motor with blade tip winglet | |
| CN1719023B (en) | Resistance and lifting force composite wind pwoer device | |
| CN201433856Y (en) | Combined wind driven generator | |
| CN104500334B (en) | Flapping wing wind turbine with flexible empennage | |
| CN101749193B (en) | High-efficient wind powered generator with start-up wind speed being set and blades thereof | |
| CN201635926U (en) | Device for vertical axis wind-driven generator device | |
| CN106894948A (en) | Based on bionic vertical axis windmill | |
| CN201155424Y (en) | Cross axis wind motor with S -type blade tip winglet | |
| CN101498275A (en) | Horizontal axle wind mill with S blade tip winglet | |
| CN205117606U (en) | Promote wind turbine generator system of generating capacity | |
| CN2813914Y (en) | Resistance and lift force compound wind power equipment | |
| CN102278272B (en) | Prominent type Blades For Horizontal Axis Wind before a kind of | |
| CN2740799Y (en) | Airscrew pitch variable device | |
| CN104343626A (en) | Self-protection wind-driven water lifting system with accelerating vanes | |
| CN109139358A (en) | A kind of noise reduction trailing edge formations of blade of wind-driven generator | |
| CN203441675U (en) | Blade of novel horizontal-axis wind turbine | |
| CN211900866U (en) | Wind power blade and horizontal shaft wind driven generator | |
| CN209621517U (en) | A kind of adaptive deformed vanes of leading edge that wind energy conversion system starting performance can be improved | |
| CN209261727U (en) | A kind of noise reduction trailing edge formations of blade of wind-driven generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081119 Termination date: 20120130 |