CN202348555U - Horizontal axis wind generating set with variable wind wheel diameter - Google Patents
Horizontal axis wind generating set with variable wind wheel diameter Download PDFInfo
- Publication number
- CN202348555U CN202348555U CN2011205449752U CN201120544975U CN202348555U CN 202348555 U CN202348555 U CN 202348555U CN 2011205449752 U CN2011205449752 U CN 2011205449752U CN 201120544975 U CN201120544975 U CN 201120544975U CN 202348555 U CN202348555 U CN 202348555U
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- CN
- China
- Prior art keywords
- wind
- wind wheel
- tip
- vane
- blade
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The utility model relates to a horizontal axis wind generating set with a variable wind wheel diameter. The horizontal axis wind generating set with the variable wind wheel diameter comprises a tower barrel, a mainframe, a wind wheel vane and a wheel hub as well as a tip vane which has an adjustable tilting angle and is mounted at the tip part of the wind wheel vane. The length of the vane can be adjusted by adjusting the tilting angle of the tip vane through enabling the tip vane to rotate around a rotation shaft or bending the flexible material forming the tip vane. According to the horizontal axis wind generating set with the variable wind wheel diameter, the problems that the possibility for increasing the generated energy is little when the wind generating set runs at a low wind speed and the possibility for avoiding the power loss of the tip part of the wind wheel vane is little when the wind generating set runs at a higher wind speed are solved; and a reasonable scheme of the wind generating set with the variable wind wheel diameter is provided, so that the generated energy of the wind generating set is increased.
Description
Technical field
The utility model relates to a kind of wind power generating set, particularly a kind of horizontal axis wind-driven generator group of variable wind wheel diameter.
Background technique
Wind energy has become the novel energy that at present tool exploitation is worth as a kind of renewable energy sources of cleaning.The Chinese feature energy storage capacity is very big, distribution is wide, and advantageous wind-resources advantage is arranged.Since two thousand three, the wind-powered electricity generation industry of China is stepped into the fast-developing stage.
At present, the single-machine capacity of wind power generating set is increasing, and the generating capacity of unit is required to improve constantly.According to formula P=ρ AV
3/ 2 can know, rotor diameter increases by 10%, and the generated output of unit will increase by 21%, visible, increase rotor diameter and be the direct way of raising unit generation amount.Yet length of blade is prolonged to increase the blade root moment of flexure simply,, the weight of blade is increased considerably, bring the raising of blade and unit manufacture cost simultaneously for stator blade must be thickeied leaf and root structure.
At present, state's intra vane does not also have to occur adjusting through the tilt angle of adjustment blade tip part the practical application of rotor diameter.Its main cause still is to fail to propose simple and reliable design proposal.
The model utility content
The technical problem that the utility model will solve provides a kind of horizontal axis wind-driven generator group of variable wind wheel diameter; To solve the wind-powered electricity generation unit at the low wind speed difficult generated energy that improves in service; And under higher wind the difficult power loss of avoiding the wind wheel blade tip segment; A kind of comparatively reasonably wind-powered electricity generation unit scheme of variable wind wheel diameter is proposed, to improve the generated energy of unit.
For solving the technical problem that exists; The technological scheme that the utility model adopts is: the horizontal axis wind-driven generator group of variable wind wheel diameter; Comprise tower tube, main frame, wind wheel blade, wheel hub; The tip vane that also comprises the adjustable inclination angle that is installed in the wind wheel blade tip is adjusted length of blade through the inclination angle of adjustment tip vane.
One of mounting type between tip vane and the wind wheel blade is: tip vane adopts flexible material, and it is inner that the blade tip of wind wheel blade is inserted in the tip vane lower end, and uses adhesive and wind wheel blade bonding.
Tip vane with another kind of mounting type between the wind wheel blade is: tip vane adopts rotating shaft to be connected with the blade tip of wind wheel blade, and through drive tip vane rotations around the shaft such as servomotor or hydraulic pressure installation.
Description of drawings
Fig. 1 is the horizontal axis wind-driven generator group schematic representation of the utility model variable wind wheel diameter.Among the figure, 1 is the tower tube, and 2 is main frame, and 3 is wind wheel blade, and 4 is tip vane, and 5 is wheel hub.
Fig. 2 is the wind wheel blade schematic representation that tip vane is installed in the horizontal axis wind-driven generator group of the utility model variable wind wheel diameter.
Fig. 3 is that the horizontal axis wind-driven generator group rotor diameter of the utility model variable wind wheel diameter changes schematic representation.Among the figure, the angle of inclination beta of tip vane is the angle between winglet and the vane airfoil profile cross section.
Fig. 4 is the adjustment situation map that the inclination angle of tip vane in the horizontal axis wind-driven generator group of the utility model variable wind wheel diameter changes with wind speed.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
See also shown in Figure 1ly, ground is fixed in tower tube 1 lower end, and the upper end is connected with main frame 2.Main frame 2 internal placement controllers and generator etc. are connected with wheel hub 5 through the steel axle, and wind wheel blade 3 is installed on the wheel hub 5, and being used for wind energy transformation is mechanical energy, and tip vane 4 is installed on blade tip.Tip vane 4 is installed in tip at each wind wheel blade 3 of wind-powered electricity generation unit; Can tip vane 4 lower ends be inserted the blade tip inside of wind wheel blade 3; And using adhesive and wind wheel blade 3 main bodys bonding, behind the installation tip vane 4, the outline drawing of wind wheel blade 3 sees also Fig. 2.
The tilt adjustable of tip vane 4, its forms of motion can be rotation or the bendings of flexible material around the shaft, and its power can be provided by motor or hydraulic pressure installation etc.When reaching the starting wind velocity of wind wheel; The generator work that wind wheel drives in the main frame 2 through wheel hub 5, the inclination angle that increase tip vane 4 this moment makes tip vane 4 become the natural extending body of blade; See also shown in Figure 3; Tip vane 4 is adjusted to the B position by the A position, has increased rotor diameter, can directly improve the generated energy of unit.Along with the increase of wind speed, reduce the inclination angle of tip vane 4 through control system.Can reduce the moment of flexure of root of blade like this, avoid blade when high wind speed, to be destroyed, utilize the generated energy of the aeroperformance increase unit of tip vane 4 simultaneously.Can do two or more times inclination angle that reduces tip vane 4 adjustment according to the actual design situation of blade.When wind speed increases to the rated wind speed of unit, tip vane 4 is adjusted go back to the A position again.This moment since tip vane 4 inclination angles be on the occasion of; The rotor diameter ratio does not increase when tip vane 4 not being installed to some extent; Air-flow on the tip vane 4 has certain regulating action to the air-flow of blade tip simultaneously; Reduced the intensity in blade tip whirlpool,, increased the generated energy of unit so can improve the blade pneumatic efficiency effectively.The corresponding relation schematic representation of tip vane 4 inclination angles adjustment situation and local wind speed sees also Fig. 4.
In this specification, the working principle and the design proposal of the horizontal axis wind-driven generator group of the utility model variable wind wheel diameter proposed, still, still can make various modifications and conversion obviously and do not deviate from the spirit and the scope of the utility model.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (3)
1. the horizontal axis wind-driven generator group of a variable wind wheel diameter; Comprise tower tube (1), main frame (2), wind wheel blade (3), wheel hub (5); It is characterized in that: also comprise the tip vane (4) of the adjustable inclination angle that is installed in wind wheel blade (3) tip, adjust length of blade through the inclination angle of adjustment tip vane (4).
2. the horizontal axis wind-driven generator group of variable wind wheel diameter according to claim 1; It is characterized in that: said tip vane (4) adopts flexible material; It is inner that the blade tip of wind wheel blade (3) is inserted in tip vane (4) lower end, and use adhesive and wind wheel blade (3) bonding.
3. the horizontal axis wind-driven generator group of variable wind wheel diameter according to claim 1; It is characterized in that: said tip vane (4) adopts rotating shaft to be connected with the blade tip of wind wheel blade (3), and drives tip vane (4) rotation around the shaft through servomotor or hydraulic pressure installation etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205449752U CN202348555U (en) | 2011-12-13 | 2011-12-13 | Horizontal axis wind generating set with variable wind wheel diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205449752U CN202348555U (en) | 2011-12-13 | 2011-12-13 | Horizontal axis wind generating set with variable wind wheel diameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348555U true CN202348555U (en) | 2012-07-25 |
Family
ID=46537564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205449752U Expired - Fee Related CN202348555U (en) | 2011-12-13 | 2011-12-13 | Horizontal axis wind generating set with variable wind wheel diameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202348555U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863791A (en) * | 2015-05-20 | 2015-08-26 | 上海交通大学 | Novel wind turbine blade |
| CN108331712A (en) * | 2018-02-27 | 2018-07-27 | 青岛华创风能有限公司 | It is a kind of can noise reducing wind electricity blade |
-
2011
- 2011-12-13 CN CN2011205449752U patent/CN202348555U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863791A (en) * | 2015-05-20 | 2015-08-26 | 上海交通大学 | Novel wind turbine blade |
| CN108331712A (en) * | 2018-02-27 | 2018-07-27 | 青岛华创风能有限公司 | It is a kind of can noise reducing wind electricity blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20171213 |