CN207879512U - The low main resistance type vertical shaft wind driven generator group blade of wind speed - Google Patents
The low main resistance type vertical shaft wind driven generator group blade of wind speed Download PDFInfo
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- CN207879512U CN207879512U CN201820265041.7U CN201820265041U CN207879512U CN 207879512 U CN207879512 U CN 207879512U CN 201820265041 U CN201820265041 U CN 201820265041U CN 207879512 U CN207879512 U CN 207879512U
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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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
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Abstract
The utility model provides a kind of low main resistance type vertical shaft wind driven generator group blade of wind speed, including fixed blade and moving vane, fixed blade includes primary blades and back blades, there is spacing between primary blades and the back blades, moving vane is spindle rotationally arranged between primary blades and back blades, and moving vane rotates that blade is made to have following two states between primary blades and back blades：A kind of state is that moving vane is pressed on back blades so that moving vane and fixed blade the asymmetric airfoil blade that constitutes sealing are whole, and another state, which is moving vane rotation, has maximum airflow channel far from back blades and between back blades.The utility model by generator blade by being arranged to fixed blade and the composite structure of moving vane, so that moving vane plays different role when being in different location relative to wind direction in wind field, not only so that wind-driven generator is suitable for low wind speed wind field, and improve the wind energy utilization and generating efficiency of traditional low wind speed wind power generator.
Description
Technical field
The utility model is related to technical field of wind power generator, and in particular to a kind of low main resistance force type vertical shaft wind power of wind speed
Generating set blade.
Background technology
Wind power generating set is that the kinetic energy of wind is converted into the mechanical device of electric energy, and the first step of this conversion process is exactly
Mechanical energy is converted wind energy by blade, mechanical energy is passed to generator by second step by connecting transfer device, third step by
Mechanical energy is converted to electric energy output by generator.Therefore one of the primary research object of energy conversion is exactly blade, blade aerodynamic
The quality of performance determines its power for catching wind energy power, determines the wind energy utilization efficiency of Wind turbines.
Vertical axis aerogenerator group typically refers to wind power generating set of the rotary shaft perpendicular to ground.Vertical-shaft wind is sent out
Motor group is not necessarily to wind, has natural advantage using upper in wind direction, with wind energy industry high speed development, the wind of low wind speed area
Establishing by cable sends out in the ascendant, and the market potential for the high-efficiency wind driven generator group that low wind speed starts is very big.
Horizontal shaft wind-power unit can not improve fan blade density, therefore its wind energy utilization can not continue because its fan blade density is low
It significantly improves；The main reason for vertical axis aerogenerator type develops slowly is complicated, and threshold wind velocity is higher；In low wind speed
Area, wind speed is small, wind kinetic energy is small, fan blade is turned round slowly under wind action, is extremely difficult to high turn round speed, it is difficult to from raising
More energy are obtained on rotating speed, to improve power coefficient, are broken the quagmire that low wind speed starts, are made vertical-shaft wind
Generating set is suitable for annual mean wind speed in the low wind speed wind field of 3m/s~8m/s, and improves low wind speed vertical axis wind power generator
The generating efficiency and wind energy utilization of group, must just make blade revolutionary innovation.
Utility model content
For the deficiency in the presence of the prior art, the utility model provides a kind of main resistance force type vertical shaft wind of low wind speed
Power generator group blade, to solve the technology that low wind speed wind power generator generating efficiency is low, wind energy utilization is low in the prior art
Problem.
To achieve the above object, the utility model uses the following technical solution：
The low main resistance type vertical shaft wind driven generator group blade of wind speed, it is characterised in that：Including fixed blade and movable leaf
Piece, the fixed blade include primary blades and back blades, have spacing, the activity between the primary blades and the back blades
Blade is spindle rotationally arranged between the primary blades and back blades, and the moving vane rotates between primary blades and back blades
To make blade that there are following two states：A kind of state is that moving vane is pressed on back blades so that moving vane and fixation
The asymmetric airfoil blade that blade constitutes sealing is whole, another state be after the moving vane rotation far from back blades and with
There is maximum airflow channel between back blades.
Compared with the prior art, the utility model has the advantages that：
The utility model proposes a kind of low main resistance type vertical shaft wind driven generator group blade of wind speed, the utility model is logical
It crosses and blade of wind-driven generator is arranged to fixed blade and the combining form of moving vane so that moving vane is opposite in wind field
When wind direction is in different location, different effects is played, not only enables wind-driven generator under lower wind friction velocity
Start power generation, and improves the wind energy utilization and generating efficiency of traditional low wind speed wind power generator.
Part is illustrated to embody by the further advantage, target and feature of the utility model by following, and part will also pass through
Research and practice to the utility model and be understood by the person skilled in the art.
Description of the drawings
Fig. 1 is the front view of the utility model；
Fig. 2 is the vertical view (upper bindiny mechanism is omitted in figure) of the utility model；
Fig. 3 is the portions A enlarged drawing in Fig. 2 (upper bindiny mechanism is omitted in figure)；
Fig. 4 is the structural schematic diagram of primary blades in the utility model；
Fig. 5 is the structural schematic diagram of back blades in the utility model；
Fig. 6 is the structural schematic diagram of moving vane in the utility model；
Fig. 7 is the structural schematic diagram of connecting plate in the utility model；
Fig. 8 is the assembling schematic diagram (upper bindiny mechanism is omitted in figure) of connecting plate and moving vane in the utility model；
Fig. 9 is analogue simulation figure of the blade in rotation process；
Figure 10 is that stream pressure when blade is in a zone positions in Fig. 9 analyzes schematic diagram；
Figure 11 is that stream pressure when blade is in b zone positions in Fig. 9 analyzes schematic diagram；
Figure 12 is that stream pressure when blade is in c zone positions in Fig. 9 analyzes schematic diagram；
Figure 13 is that stream pressure when blade is in d zone positions in Fig. 9 analyzes schematic diagram；
Figure 14 is that stream pressure when blade is in e zone positions in Fig. 9 analyzes schematic diagram.
Specific implementation mode
In order to make, technological means of the utility model, creation characteristic, reached purpose and effect are more clear and are easy to
Understand, the utility model is further elaborated with reference to the accompanying drawings and detailed description：
As Figure 1-Figure 8, as a kind of preferred embodiment of the utility model, the utility model provides a kind of low wind speed
Main resistance type vertical shaft wind driven generator group blade, including fixed blade 10 and moving vane 20, the fixed blade 10 include
The back blades 12 of primary blades 11 and the arrangement that is in line with primary blades, the one end of the back blades 12 far from primary blades 11 are inwardly curved
There is song spacing, the moving vane 20 to be rotated between primary blades and back blades between the primary blades 11 and back blades 12
To make blade that there is both the above state：A kind of state is that moving vane 20 is pressed on back blades so that 10 He of fixed blade
The asymmetric airfoil blade that moving vane 20 constitutes sealing is whole, and another state is when the rotation rotation of the moving vane 20 is remote
There is maximum airflow channel from back blades 12 and between the back blades 12.
The rotatable setting of moving vane, is realized in：As shown in figures 1 to 6, at 10 bottom of the fixed blade
Portion, i.e., be provided with lower bindiny mechanism 13 between the described primary blades 11 and the bottom of back blades 12, the top of the fixed blade 10,
Bindiny mechanism 14, the lower bindiny mechanism 13 and upper connection are provided between the i.e. described primary blades 11 and the top of back blades 12
What is corresponded to each other in mechanism 14 offers three groups of mobile channels 15, and the bottom and top of the moving vane 20 are correspondingly arranged
There are three groups to be only capable of the movable limited post 21 in three groups of mobile channels respectively, three groups of mobile channels 15 in the plane at
Triangle-Profile, moving vane 20 is by the limited post 21 that is arranged on moving vane 20 rotatably by primary blades 11 and accessory lobes
The mobile channels 15 being arranged in lower bindiny mechanism 13 and upper bindiny mechanism 14 between piece 12 are limited in the range of mobile channels,
So that moving vane 20 can rotate in mobile channels, i.e., moving vane can rotate between primary blades and back blades；Institute
Shu Shang bindiny mechanisms 14 and the lower bindiny mechanism 13 are connecting plate, and the connecting plate is fixedly connected by screw or axis pin
In primary blades 11 and back blades 12.
In said program, the state in different location of moving vane is provided as shown in Fig. 2, Fig. 3 and Fig. 8, in figure, it is living
Movable vane piece 20 is rotatably coupled to by the limited post 21 being arranged on moving vane 20 between primary blades 11 and back blades 12
Lower bindiny mechanism 13 and upper bindiny mechanism 14 in the range of the mobile channels 15 that are arranged, such moving vane 20 turns in difference
When dynamic position is acted on by different wind-force, it can be freely rotated, to make primary blades 11 and back blades in specific position conduct
One entirety either with utilizing or eliminating influence of the unfavorable wind-force to generating efficiency specifically eliminated the effects of the act by separated autonomous working
Process and principle see Figure 10-Figure 14 and hereafter analyze；Since moving vane can be pressed in fixed blade so that fixed leaf
Piece 10 and moving vane 20 constitute closed asymmetric airfoil blade entirety, therefore in the string direction of blade and air flowing side
To it is identical when, the lift of blade is not zero, and is rotated further around shaft to driving blade, can effectively overcome blade itself
Dead weight reduces the resistance of air acting, and then improves wind energy utilization efficiency.
The wing thickness of the blade entirety and the ratio of chord length are 0.18:1~0.31:1, control the wing thickness and string of blade entirety
Long ratio can improve wind energy utilization in unit space, under the support of a large amount of theory analysis and test data, obtain
Ratio range is stated, the wing thickness of blade entirety and the ratio of chord length are 0.18:1~0.31:When in 1 range, low wind speed wind energy utilization
Separate case is proposed patent application by rate highest, design method and process；The chord length of blade entirety is the total chord length of blade, i.e. primary blades
To the straight length at back blades tip, the wing thickness of blade entirety is the maximum gauge of blade at tip.
Fixed blade 10 and moving vane 20 are made of one or more of fiberglass, carbon fiber, aluminium alloy.
Preferably, the one end for moving vane 20 being connected in primary blades 11 is additionally provided with wing bosom portion 16,16 court of wing bosom portion
The side of moving vane 20 is provided with protrusion 17, the protrusion 17 is so that moving vane 20 turns to and has with the primary blades
After maximum angle, moving vane 20 is pressed on the protrusion 17, and the wing of wing the face tangent line and back blades of moving vane 20
Shape face tangent line is close to parallel.The protrusion being arranged towards the side of moving vane 20 by the way that wing bosom portion 16 and wing bosom portion 16 is arranged
17, when moving vane is rotated by wind-force effect towards wing bosom portion 16, the compressible protrusion in wing bosom portion 16 of moving vane 20
On 17, the lateral surface of such moving vane plays the role of guiding wind direction flowing, and the inside of wind-force towards back blades 12 is drawn
Stream causes 12 inside of back blades to be acted on by the pressure of wind-force, back blades is forced to be acted on by outside pressure in this way, thus with
Lift form drives the rotation of back blades 12, reduces drag effect of negative side's wind to blade, to turn more wind energies
The mechanical energy for turning to blade, improves the utilization rate of wind energy, and detailed analysis process is shown in Figure 10-Figure 14 and hereafter.
Preferably, the cross section of back blades 12 is aduncate wicker leaf shape, and the chord length of back blades 12 and blade are whole
Chord ratio be 0.33:1~0.41:1, the wing thickness of back blades 12 is 0.05 with the chord ratio of blade entirety:1~0.08:
1；Under the support of a large amount of theory analysis and test data, above-mentioned ratio range is obtained, when chord length and the blade of back blades 12 are whole
The chord ratio of body is 0.33:1~0.41:In 1 range, the wing thickness of back blades 12 is with the chord ratio of blade entirety 0.05:1
~0.08:When in 1 range, separate case is proposed patent application by low wind speed wind energy utilization highest, design method and process；In pair
Take aduncate way in blade tail point portion, in order to make full use of the normal pressure of pressure area and be generated most in Resistance Level
Big lift；Face wind direction can be formed in the range of wind-engaging no matter what angle blade runs in pressure application area
Windward side generates maximum positive wine pressure, catches wind energy power and is increased to maximum value；Blade integral inverted uses larger curved surface to leeward
The air velocity of form, suction coefficient very little, suction surface increases, and fan blade running speed is improved instead.
The moving vane proposed for the above can eliminate drag effect and be converted into lift, improve wind energy utilization and raising
Generating efficiency is now analyzed as follows：As shown in figure 9, curved arrow is blade rotation direction in figure, hollow arrow indicates wind at center
It can be understood as after individual blade is installed on vertical axis aerogenerator and works to, Fig. 9, the state in different turned positions
Figure, it is understood that be the state diagram of multiple and different blades at a time on same vertical axis aerogenerator, assume in figure
Wind direction is bottom horizontal flow sheet from left to right, is calculated for ease of research, is 0 ° of line clockwise by the rotation rail of blade with wind direction point of penetration
Mark is divided into 360 °, at interval of 10 ° of capture, one state, the state of moving vane in observation chart, by leaf when different location in figure
Piece utilizes the case where wind energy to divide such as following table：
Figure 10-Figure 14 is taken respectively from the position of a certain state of the section a, b, c, d, e blade in Fig. 9, and phase successively
The pressure force analysis of current location, the section a, b, c, d, e in corresponding upper table should be made：
Such as Figure 10, the blade in figure is in the position parallel with wind direction, utilizes section, wind-force that need to overcome blade in lift
From gravity ability driving blade rotation, therefore in the sections a, the self resistance of blade is larger, since the cross section of back blades is
Aduncate wicker leaf shape, by force analysis it is found that moving vane is pressed in primary blades and back blades at this time, therefore it is fixed
The blade that blade and moving vane form asymmetric airfoil is whole, thus at this time blade be integrally subject to by it is as shown in the figure upwards
Lift, so as to overcome the self resistance of blade and push blade around rotating clockwise.
As shown in figure 11, blade is represented in figure in the sections b pressure situation, in pressure application area, regardless of blade is run
To what angle, the windward side of face wind direction can be formed in the range of wind-engaging, generate maximum positive wine pressure, in this section,
Moving vane is pressed in primary blades and back blades, thus fixed blade and moving vane form asymmetric airfoil blade it is whole
Body, therefore blade integrally can utilize wind-force to do work to the greatest extent at this time, and wind energy utilization is also highest.
As shown in figure 12, blade is represented in figure in the sections c pressure situation, the sections c are opposite with the sections a and lift
Utilize section.
As shown in figure 13 and shown in Figure 14, the two sections are resistance using section, because in the two sections, leaf
The rotation direction of piece is with air-flow direction on the contrary, therefore air-flow does negative work, i.e. air force is resistance, in order to reduce air pair
The resistance of the generation of blade rotation, while also converting air drag to the lift of blade rotation, in the utility model cleverly
Moving vane is devised, according to the stressing conditions of moving vane in the two sections, is not difficult to find out, moving vane can be made in wind-force
With lower rotation, to open a gas channel between primary blades and back blades, therefore air can be straight out of this gas channel
It connects across blade, to reduce the resistance to blade, simultaneously as the guide functions of moving vane, flow through from gas channel
Air under the guide functions of moving vane, positive pressure, and the cross section of back blades 12 are generated to the inside of back blades
For aduncate wicker leaf shape, the chord length of back blades 12 is 0.33 with the chord ratio of blade entirety:1~0.41:1, back blades
12 wing thickness is 0.05 with the chord ratio of blade entirety:1~0.08:1, under this special dimensional fits, pass through air-flow
The air push back blades in channel rotates with the sun, this process is that moving vane converts air drag to liter
The process of power acting, just because of the presence of the above process so that the main resistance force type vertical shaft wind of low wind speed in the utility model
Power generator group blade has more the wind energy in unit space relative to existing low wind speed vertical axis wind power generator blade
High utilization rate and utilization ratio.
Finally illustrate, above example is merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, it will be understood by those of ordinary skill in the art that, it can be to this
The technical solution of utility model is modified or replaced equivalently, without departing from the objective and model of technical solutions of the utility model
It encloses, should all cover in the right of the utility model.
Claims (7)
1. the low main resistance type vertical shaft wind driven generator group blade of wind speed, it is characterised in that：Including fixed blade and moving vane,
The fixed blade includes primary blades and back blades, has spacing, the activity leaf between the primary blades and the back blades
Piece is spindle rotationally arranged between the primary blades and back blades, the moving vane rotated between primary blades and back blades from
And make blade that there are following two states：A kind of state is that moving vane is pressed on back blades so that moving vane and fixed leaf
The asymmetric airfoil blade that piece constitutes sealing is whole, and another state is the moving vane rotation far from back blades and and accessory lobes
There is maximum airflow channel between piece.
2. the main resistance type vertical shaft wind driven generator group blade of low wind speed according to claim 1, it is characterised in that：It is described
Fixed blade bottom is provided with lower bindiny mechanism, and bindiny mechanism, the lower connection machine are provided at the top of the fixed blade
Corresponding between structure and upper bindiny mechanism to offer three groups of mobile channels, the bottom and top of the moving vane are correspondingly arranged
There are three groups to be only capable of the movable limited post in three groups of mobile channels respectively, three groups of mobile channels are in the plane at triangle
Shape is distributed.
3. the main resistance type vertical shaft wind driven generator group blade of low wind speed according to claim 2, it is characterised in that：It is described
Upper bindiny mechanism and the lower bindiny mechanism are connecting plate, and the connecting plate is fixedly connected between primary blades and back blades.
4. the main resistance type vertical shaft wind driven generator group blade of low wind speed according to claim 1, it is characterised in that：It is described
The wing thickness of blade entirety and the ratio of chord length are 0.18:1~0.31:1.
5. the main resistance type vertical shaft wind driven generator group blade of low wind speed according to any one of claims 1-4, special
Sign is：Fixed blade and moving vane are made of one or more of fiberglass, carbon fiber, aluminium alloy.
6. the main resistance type vertical shaft wind driven generator group blade of low wind speed according to any one of claims 1-4, special
Sign is：One end of primary blades connection moving vane is additionally provided with wing bosom portion, and the side of wing bosom portion towards moving vane is set
It is equipped with protrusion, the protrusion makes moving vane turn to the primary blades with after maximum angle, and moving vane is pressed on
On the protrusion, and the wing face tangent line of moving vane and the wing face tangent line of back blades are close to parallel.
7. the main resistance type vertical shaft wind driven generator group blade of low wind speed according to any one of claims 1-4, special
Sign is：The cross section of back blades is aduncate wicker leaf shape, and the chord length of back blades and the chord ratio of blade entirety are
0.33:1~0.41:1, the wing thickness of back blades is 0.05 with the chord ratio of blade entirety:1~0.08:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820265041.7U CN207879512U (en) | 2018-02-23 | 2018-02-23 | The low main resistance type vertical shaft wind driven generator group blade of wind speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820265041.7U CN207879512U (en) | 2018-02-23 | 2018-02-23 | The low main resistance type vertical shaft wind driven generator group blade of wind speed |
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| CN207879512U true CN207879512U (en) | 2018-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820265041.7U Active CN207879512U (en) | 2018-02-23 | 2018-02-23 | The low main resistance type vertical shaft wind driven generator group blade of wind speed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131243A (en) * | 2018-02-23 | 2018-06-08 | 远安中晟新能源设备科技有限公司 | The low main resistance type vertical shaft wind driven generator group blade of wind speed |
-
2018
- 2018-02-23 CN CN201820265041.7U patent/CN207879512U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131243A (en) * | 2018-02-23 | 2018-06-08 | 远安中晟新能源设备科技有限公司 | The low main resistance type vertical shaft wind driven generator group blade of wind speed |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220601 Address after: 401135 No. 19, Zhuoyue Road, Longxing Town, Yubei District, Chongqing (cluster registration) Patentee after: Zhongsheng Junfeng Chongqing New Energy Co.,Ltd. Address before: 444200 Wangjia Industrial Park, Mingfeng Town, Yuan'an County, Hubei Province Patentee before: YUAN'AN ZHONGSHENG NEW ENERGY EQUIPMENT TECHNOLOGY CO.,LTD. |
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| TR01 | Transfer of patent right |