CN202417814U - Hybrid vertical-axis wind rotor of wind driven generator - Google Patents
Hybrid vertical-axis wind rotor of wind driven generator Download PDFInfo
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- CN202417814U CN202417814U CN2012200263164U CN201220026316U CN202417814U CN 202417814 U CN202417814 U CN 202417814U CN 2012200263164 U CN2012200263164 U CN 2012200263164U CN 201220026316 U CN201220026316 U CN 201220026316U CN 202417814 U CN202417814 U CN 202417814U
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- driven generator
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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 discloses a hybrid vertical-axis wind rotor of a wind driven generator, which comprises a rotating shaft. More than two resistance type blades are uniformly arranged on the rotating shaft along a periphery direction and are in the shape of arc cylinders, the edge of the inner side of an arc of each resistance type blade is connected with the rotating shaft, the upper edge and the lower edge of each resistance type blade are twisted, an twisting include angle ranges from 60 degrees to 180 degrees, and the edge on the outer side of each resistance type blade is connected with a lift force type blade. The hybrid vertical-axis wind rotor of the wind driven generator is low in starting wind speed, large in wind area, low in integral wind load, and high in torque and rotor power coefficient.
Description
Technical field
The utility model is relevant for a kind of wind wheel, especially relevant for a kind of mixed type vertical axis wind driven generator wind wheel that is applied in the wind generating technology.
Background technique
At present, each country because of wind-power electricity generation does not have fuel problem, can not produce radiation or atmospheric pollution all greatly developing the new energy industry yet, and it has become the business-like first-selection of new energy.Existing wind-driven generator is pressed the placement location of wind wheel rotating shaft; Can be divided into two types of horizontal axis wind-driven generator and vertical axis aerogenerators; The wind wheel running shaft of horizontal axis wind-driven generator is parallel with wind direction, and the wind wheel running shaft of vertical axis aerogenerator is perpendicular to ground or airflow direction.Vertical axis aerogenerator; In change of the wind, need not wind; It is a big advantage with respect to horizontal axis wind-driven generator in this, and it is simplified because of having structural design, volume is little, the advantages such as gyro power when having reduced blade to wind are widely used in the wind-power generating system.
Conventional vertical axle wind wheel comprises that mainly Sa irrigates Nice (Savonius) wind wheel, Da Lie wind wheel, H type wind wheel etc.Wherein, As shown in Figure 1; Be the existing fertile Nice (Savonius) of the Sa wind wheel stereogram that is applied on the vertical axis aerogenerator; The fertile Nice of Sa wind wheel is a kind of resistance type wind wheel, and it begins to be mainly sailing boat most provides power, along with this wind wheel of the development of wind generating technology is used on vertical axis aerogenerator gradually.This wind wheel mainly is made up of two semi-cylindrical shaped blades 1 ', and the semicircle concave surface of two blades 1 ' is oppositely arranged, and the segment distance that staggers of central shaft separately, and the two ends of two blades 1 ' are connected with end casing 2 ' respectively.Its working principle is: after air flow stream is crossed two blades 1 '; The pressure of the wind on blade 1 ' the concavo-convex two sides has a difference; And air communication 180 degree of will transferring when crossing blade 1 ', the pressure difference that two blades 1 ' receive has formed a pair of pneumatic couple, and blade 1 ' rotates thereupon.In addition; As shown in Figure 2; Also leave certain slit 3 ' between two blades 1 '; Can flow on the concave surface of another blade 1 ' (shown in the arrow among Fig. 2) from this slit 3 ' from air-flow that the concave surface of one of them blade 1 ' flows through, it is poor that the swirling eddy that flows through this slit 3 ' has increased the surface pressure of blade 1 ', thereby improved wind energy utilization.
But because the blade 1 ' of this wind wheel is vertical semi-cylindrical shaped, air-flow only vertically acts on the concave surface of blade 1 '; It can not produce along the power on the wind wheel axial direction; Therefore, the wind of this kind wind wheel carries bigger, and its tip speed can be greater than wind speed; Blade 1 ' almost is to rotate with the same speed of wind speed, and this just causes using the wind energy conversion system of this kind wind wheel when wind speed is low, can't produce enough electric energy; In addition, because the resistance that is applied on two blades 1 ' is different, thereby this kind wind wheel shows badly on dynamic performance, and its power coefficient is very low, can not satisfy growing technical need.If increase Wind Power Utilization efficient through increasing the windward side area; For example, with the broad that the blade 1 ' width of wind wheel is made, this just causes the running shaft diameter of wind wheel to increase and the stent size of fixing this wind wheel increases; Obviously, this way is both uneconomical also impracticable.
And Da Lie wind wheel and H shape wind wheel all belong to lifting wind wheel, and they mainly are to rely on the different radian of airfoil surface, make to produce different flow rate when air flows through on the aerofoil profile both sides, and then produce different pressure, rely on pressure difference to produce power.But the Yin Dalie wind wheel does not possess self-startup ability, needs the corresponding starting drive of configuration, causes its structure relative complex; And the required startup wind speed of H type wind wheel is higher, and the generation torque is less down at low wind speed, poor-performing.
Therefore, being necessary provides the vertical axis aerogenerator wind wheel that a kind of Wind Power Utilization efficient is higher, torque is bigger, overcomes above-mentioned defective.
The model utility content
The purpose of the utility model provides a kind of mixed type vertical axis wind driven generator wind wheel, and this mixed type vertical axis wind driven generator wind wheel startup wind speed is low, and its blowing area is big, and whole wind carries little, and torque is high, and power coefficient is big.
The above-mentioned purpose of the utility model can adopt following technical proposal to realize:
The utility model provides a kind of vertical axis aerogenerator wind wheel; It comprises rotating shaft; Along the circumferential direction evenly be provided with two above resistance type blades in the said rotating shaft, said resistance type blade is the circular arc tubular, and the circular arc inside edge of each said resistance type blade links to each other with said rotating shaft respectively; The top edge of said resistance type blade reverses with lower limb mutually, and reversing angle is 60～180 degree; Wherein, be connected with the lift-type blade on the outer ledge of each said resistance type blade.
In preferred embodiment, the cross section of said resistance type blade is a circular arc, and its central angle is 90～180 degree.
In preferred embodiment, said resistance type blade is three, and the said angle that reverses is 120 degree.
In preferred embodiment, each said resistance type blade in axial direction offers a plurality of wind hole in the position near said rotating shaft.
In preferred embodiment, the outer ledge of said resistance type blade in axial direction offers a plurality of perforation, and the width L of said perforation is 40～60mm.
In preferred embodiment; Said lift-type blade has leading edge and trailing edge; Said lift-type vane trailing edge links to each other with the outer ledge of said resistance type blade; Line between said trailing edge and the said leading edge is that the aerofoil profile of lift-type blade is revolved, and the center of each said lift-type blade is that the center is formed with center circle with said rotating shaft, and the angle theta of the center of said lift-type blade between the tangent line on the said center circle and said aerofoil profile are revolved is 7 degree.
In preferred embodiment, said lift-type blade is NACA symmetric form airfoil fan or clark YM airfoil fan.
In preferred embodiment, said rotating shaft is processed by the Q235 steel.
In preferred embodiment, said resistance type blade and said lift-type blade are processed by glass fibre reinforced plastic material.
In preferred embodiment, the thickness of the circular arc inside edge of said resistance type blade is greater than the thickness of the circular arc outer ledge of said resistance type blade.
The characteristics and the advantage of the mixed type vertical axis wind driven generator wind wheel of the utility model are:
One, the mixed type vertical axis wind driven generator wind wheel of the utility model is made up of plural arc tube form resistance type blade, and the top edge of the resistance type blade of this circular arc tubular reverses certain angle with respect to lower limb; When air-flow when the directive effect of vertical rotation axis is on blade, on the one hand, because of the vertical semi-cylindrical shaped blade of the traditional relatively fertile Nice of the Sa wind wheel of resistance type blade; Reverse, therefore for the blade of same height and the width, the blowing area of the resistance type blade in the vertical direction of the utility model increases to some extent; Wind Power Utilization efficient increases to some extent; In addition, wind wheel has at least plural resistance type blade relative with air-flow in the process that is rotated; The plural resistance type blade of the instantaneous promotion of air-flow is rotated, and the power coefficient of this wind wheel is big; On the other hand; Because of power that air-flow produced not only can make the resistance type blade be rotated, and the resistance type blade is toppled over, top edge and lower limb carry out the resistance type blade after the bending; The possibility that the resistance type blade can occurrence of tilting is reduced; Have again, air-flow after the concave surface of touching the resistance type blade, can nature carry out eddy flow along concave surface to the direction of the top edge of resistance type blade and flow; The rotation that it has further promoted the resistance type blade has improved Wind Power Utilization efficient.In addition, the mixed type vertical axis wind driven generator wind wheel of the utility model also is connected with the lift-type blade at the outer ledge of resistance type blade, and the lift-type blade is greatly improved the power coefficient of wind wheel, and can effectively improve the torque of wind wheel blade; Have, the wind wheel of the utility model also has certain off-load ability under high wind speed again.
Two, the mixed type vertical axis wind driven generator wind wheel of the utility model; In axial direction offer a plurality of wind hole at each resistance type blade near the position of rotating shaft; When air-flow acts on the surface of resistance type blade; Because the air-flow near the rotating shaft position place is almost nil to making the resistance type blade produce the active force that rotates; Those air-flows of underusing can be transferred on next resistance type blade surface through the wind hole, and then have increased the lip-deep air-flow Driving force of next resistance type forward face, have further improved Wind Power Utilization efficient.
Three, the mixed type vertical axis wind driven generator wind wheel of the utility model; Outer ledge place at each resistance type blade in axial direction offers a plurality of perforation; The setting of perforation can further improve air-flow and acts on the pressure difference between lift-type blade outer surface and the internal surface; Further improve the wind energy utilization of wind wheel, improve the wind wheel blade torque.
Description of drawings
In order to be illustrated more clearly in the technological scheme among the utility model embodiment; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the stereogram of existing vertical axis aerogenerator wind wheel.
Fig. 2 is the top cross-sectional view of existing vertical axis aerogenerator wind wheel.
Fig. 3 is the stereogram of the mixed type vertical axis wind driven generator wind wheel of the utility model.
Fig. 4 is the plan view of the mixed type vertical axis wind driven generator wind wheel of the utility model.
Fig. 5 is the plan view of the mixed type vertical axis wind driven generator wind wheel of the utility model.
Fig. 6 is that the A-A of Fig. 4 is to sectional drawing.
Fig. 7 is the B portion enlarged view among Fig. 6.
Fig. 8 is the C portion enlarged view among Fig. 6.
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technological scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Like Fig. 3, shown in 4; The utility model provides a kind of vertical axis aerogenerator wind wheel, and it comprises rotating shaft 1, along the circumferential direction evenly is provided with two above resistance type blades 2 in the said rotating shaft 1; Said resistance type blade 2 is the circular arc tubular; The circular arc inside edge 21 of each said resistance type blade 2 links to each other with said rotating shaft 1 respectively, and the top edge 22 of said resistance type blade 2 reverses with lower limb 23 mutually, and reversing angle theta is 60～180 degree.Wherein, be connected with lift-type blade 3 on the outer ledge 25 of each said resistance type blade 2.
Specifically be, rotating shaft 1 is the cylinder bodily form substantially, and it is processed by Q235 steel or No. 20 steel.Resistance type blade 2 is the circular arc tubular, is fixedly connected on the periphery wall of rotating shaft 1 with its circular arc inside edge 21, and it is processed by glass fibre reinforced plastic material.It is wing that lift-type blade 3 is substantially, and it is shaped in resistance type blade 2, and it is processed by glass fibre reinforced plastic material.As shown in Figure 5, the top edge 22 of resistance type blade 2 reverses an angle θ towards relative its lower limb 23 of concave surface one side of resistance type blade 2, and the scope of angle θ is between 60～180 degree.As shown in Figure 6, the shape of cross section of resistance type blade 2 on each horizontal plane that reverses all is circular arc, and the central angle φ of this circular arc is 90～180 degree.In the utility model; Because of resistance type blade 2 is the circular arc tubular; And its top edge 22 relative lower limbs 23 reverse; Therefore, be connected between the vertical axis of circular arc inside edge 21 and rotating shaft 1 of the resistance type blade 2 in the rotating shaft 1 and form an angle naturally, this circular arc inside edge 21 is not parallel with the vertical axis of rotating shaft 1.And, being connected the lift-type blade 3 on resistance type blade 2 outer ledges, its top edge and lower limb also reverse relatively, are complementary with the outer ledge radian with resistance type blade 2.
The mixed type vertical axis wind driven generator wind wheel of the utility model; When air-flow along the directive effect of vertical rotation axis 1 in 2 last times of resistance type blade, on the one hand, because of the vertical semi-cylindrical shaped blade of the traditional relatively fertile Nice of the Sa wind wheel of resistance type blade 2; Reverse; Therefore for the blade of same height and the width, the blowing area of resistance type blade 2 in the vertical directions of the utility model increases to some extent, and Wind Power Utilization efficient increases.In addition; This wind wheel is in the process that is rotated; Have at least the windward side (concave surface of resistance type blade 2) of plural resistance type blade 2 relative with air-flow, the plural resistance type blade 2 of the instantaneous promotion of air-flow is rotated, and the power coefficient of this wind wheel is big; On the other hand; Because of power that air-flow produced not only can make resistance type blade 2 be rotated, and resistance type blade 2 is toppled over, top edge 22 and lower limb 23 carry out the resistance type blade 2 after the bending; The possibility that resistance type blade 2 can occurrence of tilting is reduced; Have again, air-flow after the concave surface of touching resistance type blade 2, can nature carry out eddy flow along concave surface to the direction of the top edge 22 of resistance type blade 2 and flow; The rotation that it has further promoted resistance type blade 2 has improved Wind Power Utilization efficient.
In addition, be connected the lift-type blade 3 on resistance type blade 2 outer ledges,, therefore can further improve the power coefficient of wind wheel because of it can obtain bigger ouput force under high rotating speed, and the torque that can effectively improve wind wheel; Have, the wind wheel of the utility model also has certain off-load ability under high wind speed again, and the situation that the ultra motor load of rotating speed therefore can not occur takes place, and its Safety performance is high, and beautiful shape, generous.The mixed type vertical axis wind driven generator wind wheel of the utility model need not to dispose starting drive, wind wheel can be rotated at low wind speed, and under higher wind speed, this wind wheel also can obtain higher torque, improves wind wheel ouput force and wind energy utilization.
In the utility model; Preferably, evenly be provided with three resistance type blades 2 in the rotating shaft 1, the top edge 22 of resistance type blade 2 is 120 degree with the angle θ that lower limb 23 reverses mutually; The central angle φ of circular arc resistance type blade 2 is 180 degree, also is the cross section semicircular in shape of resistance type blade 2.The benefit of design is like this, and resistance type blade 2 can play a role to greatest extent, and the torque that resistance type blade 2 is obtained is higher, and power coefficient is bigger, and wind energy utilization is higher.Certainly; In other mode of execution; The quantity of resistance type blade 2 also desirable for example 4 or multi-disc etc. more; The top edge 22 of resistance type blade 2 also can be chosen arbitrarily between 60～180 degree with the angle θ that lower limb 23 reverses mutually, and the central angle φ of circular arc resistance type blade 2 also can choose between 90～180 degree, does not limit at this.
See also Fig. 3 and shown in Figure 7, according to a mode of execution of the utility model, each said resistance type blade 2 in axial direction offers a plurality of wind hole 24 in the position near said rotating shaft 1.Specifically be; In the utility model; The inside edge 21 of each resistance type blade 2 in axial direction is provided with a row wind hole 24; A plurality of wind hole 24 is evenly distributed on the inside edge 21 of resistance type blade 2, and its quantity can be selected to be provided with according to the height of resistance type blade 2, does not limit at this.The mixed type vertical axis wind driven generator wind wheel of the utility model; When air-flow acts on the surface of resistance type blade 2; Because the air-flow near rotating shaft 1 position is almost nil to making resistance type blade 2 produce the active force that rotates; Those air-flows of underusing can be transferred on the concave surface of next resistance type blade 2 through wind hole 24, and then have increased the air-flow Driving force on next resistance type blade 2 concave surface, have further improved Wind Power Utilization efficient.
A mode of execution according to the utility model sees also Fig. 6 and shown in Figure 8, and the outer ledge of said resistance type blade 2 in axial direction offers a plurality of perforation 26, and the width L of said perforation 26 is 40～60mm.Specifically be; In the utility model; The outer ledge 25 of each resistance type blade 2 in axial direction is provided with a row perforation 26; A plurality of perforation 26 are evenly distributed on the outer ledge 25 of resistance type blade 2, and its quantity can be selected to be provided with according to the height of resistance type blade 2, does not limit at this.The setting of perforation 26 can further improve air-flow and acts on the pressure difference between lift-type blade 3 outer surfaces and the internal surface, further improves the wind energy utilization of wind wheel, improves the wind wheel blade torque.
A mode of execution according to the utility model; Said lift-type blade 3 has leading edge 31 and trailing edge 32; The trailing edge 32 of said lift-type blade 3 links to each other with the outer ledge 25 of said resistance type blade 2; Line between said trailing edge 32 and the said leading edge 31 is that the aerofoil profile of lift-type blade revolves 33; The center O of each said lift-type blade 3 is that the center is formed with center circle 34 with said rotating shaft 1, and in the utility model, the angle σ of the center O of said lift-type blade 3 between the tangent line on the said center circle 34 and said aerofoil profile are revolved is 7 degree.Can bring into play the effect of lift-type blade 3 so to greatest extent, improve the torque of wind wheel blade.
According to a mode of execution of the utility model, said lift-type blade 3 is NACA symmetric form airfoil fan or clarkYM airfoil fan.In the utility model, said lift-type blade 3 can be NACA 0015 airfoil fan or NACA0018 airfoil fan, perhaps can be clark YM-18 airfoil fan.Certainly, in other mode of execution, lift-type blade 3 also can be the vertical shaft lift-type airfoil fan of other type, does not limit at this.
A mode of execution according to the utility model; The thickness of the circular arc outer ledge 25 of resistance type blade 2 is less than the thickness of circular arc inside edge 21; Can save material like this, and circular arc inside edge 21 the thicker of making are in order to make resistance type blade 2 have good bearing capacity.
The above is merely several embodiments of the utility model, and those skilled in the art can carry out various changes or modification to the utility model embodiment according to the disclosed content of application documents and not break away from the spirit and the scope of the utility model.
Claims (10)
1. mixed type vertical axis wind driven generator wind wheel; It is characterized in that it comprises rotating shaft, along the circumferential direction evenly be provided with two above resistance type blades in the said rotating shaft; Said resistance type blade is the circular arc tubular; The circular arc inside edge of each said resistance type blade links to each other with said rotating shaft respectively, and the top edge of said resistance type blade reverses with lower limb mutually, and reversing angle is 60～180 degree; Wherein, be connected with the lift-type blade on the outer ledge of each said resistance type blade.
2. mixed type vertical axis wind driven generator wind wheel as claimed in claim 1 is characterized in that, the cross section of said resistance type blade is a circular arc, and its central angle is 90～180 degree.
3. mixed type vertical axis wind driven generator wind wheel as claimed in claim 1 is characterized in that, said resistance type blade is three, and the said angle that reverses is 120 degree.
4. mixed type vertical axis wind driven generator wind wheel as claimed in claim 1 is characterized in that, each said resistance type blade in axial direction offers a plurality of wind hole in the position near said rotating shaft.
5. mixed type vertical axis wind driven generator wind wheel as claimed in claim 1 is characterized in that the outer ledge of said resistance type blade in axial direction offers a plurality of perforation, and the width L of said perforation is 40～60mm.
6. mixed type vertical axis wind driven generator wind wheel as claimed in claim 1; It is characterized in that; Said lift-type blade has leading edge and trailing edge; Said lift-type vane trailing edge links to each other with the outer ledge of said resistance type blade; Line between said trailing edge and the said leading edge is that the aerofoil profile of lift-type blade is revolved, and the center of each said lift-type blade is that the center is formed with center circle with said rotating shaft, and the angle theta of the center of said lift-type blade between the tangent line on the said center circle and said aerofoil profile are revolved is 7 degree.
7. mixed type vertical axis wind driven generator wind wheel as claimed in claim 1 is characterized in that, said lift-type blade is NACA symmetric form airfoil fan or clark YM airfoil fan.
8. like each described mixed type vertical axis wind driven generator wind wheel of claim 1-7, it is characterized in that said rotating shaft is processed by the Q235 steel.
9. like each described mixed type vertical axis wind driven generator wind wheel of claim 1-7, it is characterized in that said resistance type blade and said lift-type blade are processed by glass fibre reinforced plastic material.
10. like each described mixed type vertical axis wind driven generator wind wheel of claim 1-7, it is characterized in that the thickness of the circular arc inside edge of said resistance type blade is greater than the thickness of the circular arc outer ledge of said resistance type blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200263164U CN202417814U (en) | 2012-01-19 | 2012-01-19 | Hybrid vertical-axis wind rotor of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200263164U CN202417814U (en) | 2012-01-19 | 2012-01-19 | Hybrid vertical-axis wind rotor of wind driven generator |
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| Publication Number | Publication Date |
|---|---|
| CN202417814U true CN202417814U (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200263164U Expired - Lifetime CN202417814U (en) | 2012-01-19 | 2012-01-19 | Hybrid vertical-axis wind rotor of wind driven generator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728039A (en) * | 2015-03-25 | 2015-06-24 | 中国科学院南海海洋研究所 | Wind wheel of vertical-axis wind generator |
| WO2015107061A1 (en) * | 2014-01-14 | 2015-07-23 | Erka Technik Gmbh | Wind turbine or hydroelectric power plant |
| CN108138744A (en) * | 2016-05-04 | 2018-06-08 | 图博萨姆公司 | Savonius rotor, rotor module, its device and application |
-
2012
- 2012-01-19 CN CN2012200263164U patent/CN202417814U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015107061A1 (en) * | 2014-01-14 | 2015-07-23 | Erka Technik Gmbh | Wind turbine or hydroelectric power plant |
| CN104728039A (en) * | 2015-03-25 | 2015-06-24 | 中国科学院南海海洋研究所 | Wind wheel of vertical-axis wind generator |
| CN108138744A (en) * | 2016-05-04 | 2018-06-08 | 图博萨姆公司 | Savonius rotor, rotor module, its device and application |
| CN108138744B (en) * | 2016-05-04 | 2021-10-22 | 图博萨姆公司 | Savonius rotor, rotor module, device and application thereof |
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Granted publication date: 20120905 |
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