CN108571424A - Screw type blade of wind-driven generator - Google Patents
Screw type blade of wind-driven generator Download PDFInfo
- Publication number
- CN108571424A CN108571424A CN201810293722.9A CN201810293722A CN108571424A CN 108571424 A CN108571424 A CN 108571424A CN 201810293722 A CN201810293722 A CN 201810293722A CN 108571424 A CN108571424 A CN 108571424A
- Authority
- CN
- China
- Prior art keywords
- wind
- blade
- driven generator
- screw type
- type 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.)
- Pending
Links
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009466 transformation Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
-
- 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
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/06—Rotors
- F03D3/061—Rotors characterised by their aerodynamic shape, e.g. aerofoil profiles
-
- 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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (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 screw type blade of wind-driven generator, it include the blade body (1) with inner surface (1 1) and outer surface (1 2), inner surface (1 1) is used as power face, outer surface (1 2) is used as resistance area, outer surface (1 2) is smooth surface, it is characterised in that：The cross section indention of inner surface (1 1).The present invention greatly improves effect of the wind energy transformation at mechanical energy, improves wind energy utilization efficiency by the way that toothing is designed in the cross section of the inner surface of blade.
Description
Technical field
The present invention relates to a kind of screw type blade of wind-driven generator.It is a kind of Sa Woniusi (Savonius) spiral shape wind-force
Generator blade.Belong to technical field of wind power generation.
Background technology
Traditional Sa Woniusi screw types blade of wind-driven generator is generally by aluminum alloy thin steel plate or conventional composite ratio
If reinforced plastic glass fibre is made, the power face and resistance surface roughness of blade are almost the same, therefore can only rely on intrinsic knot
Structure generates thrust, and fails that power face is made to generate more pressure differences with resistance area.It is relatively low so as to cause the utilization ratio of wind energy.
According to aerodynamic principle, the surface of distinguished and admirable warp is more coarse, and more namely surface that wind pressure is reduced receives
More wind pressure, as shown in Figure 5.According to formula P0-P=P1, for P closer to P0, P1 is smaller, illustrates that wind energy is more converted to
The thrust of fan blade, and the wind energy escaped is fewer.
Similarly, surface is more smooth, and wind energy is escaped more, and the kinetic energy for acting on fan blade surface is smaller.And traditional wind-force
The defect of generator blade surfaces externally and internally Just because of this causes the utilization ratio of wind energy relatively low.
Invention content
The object of the present invention is to provide a kind of screw type blade of wind-driven generator that can improve wind energy utilization efficiency.
Realizing above-mentioned purpose technical solution is：A kind of screw type blade of wind-driven generator, including with inner surface and appearance
The blade body in face, inner surface is as power face, and as resistance area, outer surface is smooth surface for outer surface, inner surface it is transversal
Face indention.
After using above-mentioned technical proposal, in order to increase the thrust of power face, while reducing the resistance of resistance area, by fan blade
The cross section of inner surface be set as zigzag, significantly increase the area of power face, which receives more wind pressure
And outer surface, that is, resistance area makes smooth surface.This is to allow the wind energy escaped out more via between two blades
Gap act on the inner surface namely power face of another blade, the cross section using such inner surface is zigzag fan blade
Afterwards, effect of the wind energy transformation at mechanical energy is greatly improved, wind energy utilization efficiency is improved, after (simple) wind tunnel test,
15% or so efficiency can be improved.
Description of the drawings
Fig. 1 is the front view of the screw type blade of wind-driven generator of the present invention；
Fig. 2 is the vertical view of Fig. 1；
Fig. 3 is the portions the A enlarged diagram of Fig. 1；
Fig. 4 is the K direction views of Fig. 3；
Fig. 5 is that the wind pressure of blade surface transmits schematic diagram.
In figure：1, blade body, 1-1, inner surface, 1-2, outer surface.
Specific implementation mode
In order that the present invention can be more clearly and readily understood, right below according to specific embodiment and in conjunction with attached drawing
The present invention is described in further detail.
As shown in figures 1-4, a kind of screw type blade of wind-driven generator includes with inner surface 1-1 and outer surface 1-2
Blade body 1, inner surface 1-1 is as power face, and for outer surface 1-2 as resistance area, outer surface 1-2 is smooth surface, inner surface
The cross section indention of 1-1.
Working principle of the present invention is as follows：
In order to increase the thrust of power face, while reducing the resistance of resistance area, the cross section of the inner surface of fan blade is arranged
For zigzag, the area of power face is significantly increased, which receives more wind pressure and outer surface i.e. resistance area is made
Smooth surface.This is to allow the wind energy escaped out more to act on another blade via the gap between two blades
Inner surface namely power face, using such inner surface cross section be zigzag fan blade after, greatly improve wind energy turn
It is melted into the effect of mechanical energy, wind energy utilization efficiency is improved, after (simple) wind tunnel test, 15% or so efficiency can be improved.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical solution and advantageous effect
It describes in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the guarantor of the present invention
Within the scope of shield.
Claims (1)
1. a kind of screw type blade of wind-driven generator includes the blade body (1) with inner surface (1-1) and outer surface (1-2),
Inner surface (1-1) is used as power face, and it is smooth surface that outer surface (1-2), which is used as resistance area, outer surface (1-2), it is characterised in that：
The cross section indention of inner surface (1-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810293722.9A CN108571424A (en) | 2018-03-30 | 2018-03-30 | Screw type blade of wind-driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810293722.9A CN108571424A (en) | 2018-03-30 | 2018-03-30 | Screw type blade of wind-driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108571424A true CN108571424A (en) | 2018-09-25 |
Family
ID=63574478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810293722.9A Pending CN108571424A (en) | 2018-03-30 | 2018-03-30 | Screw type blade of wind-driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108571424A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2606195Y (en) * | 2002-11-29 | 2004-03-10 | 绵阳市中天科技有限责任公司 | Blades of blowing apparatus |
| CN201661418U (en) * | 2010-03-08 | 2010-12-01 | 龚小平 | Generator blade |
| CN104314869A (en) * | 2014-10-22 | 2015-01-28 | 深圳市南方格瑞斯科技有限公司 | Structure-improved respirator motor impeller |
| CN107664095A (en) * | 2017-11-14 | 2018-02-06 | 邹跃洲 | Screw type blade of wind-driven generator |
| CN208010512U (en) * | 2018-03-30 | 2018-10-26 | 邹跃洲 | Screw type blade of wind-driven generator |
-
2018
- 2018-03-30 CN CN201810293722.9A patent/CN108571424A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2606195Y (en) * | 2002-11-29 | 2004-03-10 | 绵阳市中天科技有限责任公司 | Blades of blowing apparatus |
| CN201661418U (en) * | 2010-03-08 | 2010-12-01 | 龚小平 | Generator blade |
| CN104314869A (en) * | 2014-10-22 | 2015-01-28 | 深圳市南方格瑞斯科技有限公司 | Structure-improved respirator motor impeller |
| CN107664095A (en) * | 2017-11-14 | 2018-02-06 | 邹跃洲 | Screw type blade of wind-driven generator |
| CN208010512U (en) * | 2018-03-30 | 2018-10-26 | 邹跃洲 | Screw type blade of wind-driven generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180925 |