CN203906181U - Wind driven generator - Google Patents
Wind driven generator Download PDFInfo
- Publication number
- CN203906181U CN203906181U CN201420325800.6U CN201420325800U CN203906181U CN 203906181 U CN203906181 U CN 203906181U CN 201420325800 U CN201420325800 U CN 201420325800U CN 203906181 U CN203906181 U CN 203906181U
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- Prior art keywords
- impeller
- support
- wind
- driven generator
- rotary support
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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 relates to a wind driven generator. The wind driven generator comprises a supporting tower, a fixing supporting frame, a lower transverse support, a lower rotary support, a flange, a generator outer rotor, an inner rotor, a lower impeller and an upper impeller, wherein the lower impeller comprises a lower impeller rotary shaft, the upper impeller comprises an upper impeller rotary shaft, the fixing supporting frame is fixed to the supporting tower, the lower transverse support is located at the bottom of the fixing supporting frame, the lower rotary support is fixedly connected with the lower transverse support, one end of the generator outer rotor is fixedly connected with the lower rotary support through the flange, and the other end of the generator outer rotor is fixedly connected with the lower impeller rotary shaft; the lower impeller rotary shaft is of a sleeve structure, a bearing is arranged at the top end of the lower impeller rotary shaft, and the lower impeller rotary shaft penetrates through the bearing of the sleeve of the lower impeller rotary shaft and is fixedly connected with the inner rotor. Under the same rotation speed condition, the wind driven generator lowers the requirement for the wind speed to 80 percent of the original wind speed and does not need a speed increaser or other equipment, thereby effectively guaranteeing the generation efficiency.
Description
Technical field
The utility model relates to Wind Power Utilization technical field, especially relates to a kind of wind-driven generator.
Background technique
Under the more and more nervous reality of world energy sources, people have developed the renewable resourcess such as natural wind energy, solar energy gradually, and utilize wind-driven generator to rotate when extraneous wind-force reaches requirement, drive generator generating simultaneously, yet the startup wind speed that existing wind-driven generator is general is had relatively high expectations, approximately more than 4m/s, and the wind-driven generator just having started is not just to start generating at once, could normal power generation but will wait until that impeller on wind-driven generator reaches certain rotating speed.
For improving the generating efficiency of wind-driven generator, people are by speed increaser being installed on wind-driven generator to improve the rotating speed of wind-driven generator, thus the object that realization is generated electricity fast.Yet speed increaser is expensive, the wind-driven generator after speed increaser has been installed and has not only been become heavier, and greatly increased the rate of fault of wind-driven generator.
Model utility content
In view of this, the utility model provides a kind of wind-driven generator, and this wind-driven generator does not need to install speed increaser, also can make wind-driven generator generate electricity fast the in the situation that of lower wind speed, thereby improves the generating efficiency of wind-driven generator.
For achieving the above object, the utility model by the following technical solutions:
A wind-driven generator, comprises support tower, fixed support, lower horizontal support, lower rotary support, flange, generator external rotor, internal rotor, lower impeller, upper impeller, and described lower impeller comprises lower impeller shaft; Described upper impeller comprises impeller shaft; Described fixed support is fixed in support tower, bottom rail supports and is positioned at described support bracket fastened bottom, described lower rotary support is fixed in lower horizontal support, one end of described generator external rotor is fixed on lower rotary support by flange, the other end and described lower impeller shaft are fixed together, and described lower impeller shaft is tube-in-tube structure, on its top, is provided with bearing, described upper impeller shaft passes the sleeve of bearing and lower impeller shaft, and is fixedly connected with internal rotor.
Described lower impeller also comprises lower impeller strut and lower impeller blade, and described lower impeller blade is connected on lower impeller shaft by lower impeller strut; Described upper impeller also comprises impeller strut and upper impeller blade, and described upper impeller blade is connected on upper impeller shaft by upper impeller strut.
The installation direction of described upper impeller blade and lower impeller blade is contrary.
Described upper impeller blade and lower impeller blade are prismatic blade, and quantity is at least two.
Described lower rotation support package is drawn together lower rotation support sleeve, angular contact bearing and rotation mandrel, described lower rotation support sleeve is fixedly connected with lower horizontal support, and also assemble together with angular contact bearing with described rotation mandrel, described flange is fixed together with rotation mandrel by being positioned at the key of its inner side.
Top and bottom at described lower rotation support sleeve are equipped with stifle on lower rotary support sealing gasket and lower rotary support from inside to outside successively, between the stifle of described lower rotation support, top and rotation mandrel, lower rotary support seal ring are also installed.
Described fixed support also comprises rotary support, upper horizontal support and column, and described upper rotary support is fixed in horizontal support, and described column is between upper horizontal support and lower horizontal support.
Described upper rotary support comprises rotary support axle sleeve and selfaligning bearing, and described upper rotary support axle sleeve is fixed in horizontal support, and is assemblied on upper impeller shaft by selfaligning bearing.
The top of rotary support axle sleeve and bottom are equipped with rotary support sealing gasket and upper rotary support stifle from inside to outside successively on described, between the stifle of rotary support bottom and upper impeller shaft, rotary support seal ring are also installed on described.
Under identical speed conditions, wind-driven generator described in the utility model has been reduced to original 80% to the requirement of wind speed, and does not need to install the equipment such as speed increaser, thereby has effectively guaranteed the generating efficiency of wind-driven generator.
Accompanying drawing explanation
Fig. 1 is the structural representation of wind-driven generator described in the utility model.
Fig. 2 is the sectional view of the wind-driven generator A-A direction shown in Fig. 1.
Fig. 3 A be when the wind-driven generator B-B direction shown in Fig. 1 is looked the scheme of installation of impeller blade.
Fig. 3 B is from the scheme of installation of impeller blade at present of looking of the wind-driven generator B-B direction shown in Fig. 1.
Fig. 4 is the sectional view that under wind-driven generator described in the utility model, rotation is supported on B-B direction in Fig. 1.
Fig. 5 is that upper rotary support described in the utility model is at the sectional view of B-B direction.
Embodiment
Below in conjunction with accompanying drawing, describe embodiment of the present utility model in detail.
Fig. 1 is the structural representation of wind-driven generator described in the utility model, and Fig. 2 is the sectional view of the wind-driven generator A-A direction shown in Fig. 1.As depicted in figs. 1 and 2, wind-driven generator 100 described in the utility model comprises support tower 1, fixed support 7, lower horizontal support 71, lower rotary support 2, flange 3, generator external rotor 4, internal rotor 9, lower impeller 5, upper impeller 6, described lower impeller 5 comprises lower impeller shaft 53, lower impeller strut 51 and lower impeller blade 52, and described lower impeller blade 52 is connected on lower impeller shaft 53 by lower impeller strut 51; Described upper impeller 6 comprises impeller shaft 63, upper impeller strut 61 and upper impeller blade 62, and described upper impeller blade 62 is connected on upper impeller shaft 63 by upper impeller strut 61; Described fixed support 7 is fixed in support tower 1, lower horizontal support 71 is positioned at the bottom of described fixed support 7, described lower rotary support 2 is fixed in lower horizontal support 71, one end of described generator external rotor 4 is fixed on lower rotary support 2 by flange 3, the other end and described lower impeller shaft 53 are fixed together, described lower impeller shaft 53 is tube-in-tube structure, on its top, be provided with bearing 54, described upper impeller shaft 63 passes the sleeve of bearing 54 and lower impeller shaft 53, and is fixedly connected with internal rotor 9.
For reducing by 100 pairs of requirements that start wind speed of described wind-driven generator, the installation direction of described upper impeller blade 62 and lower impeller blade 52 is contrary.Fig. 3 A be when the wind-driven generator B-B direction shown in Fig. 1 is looked the scheme of installation of impeller blade; Fig. 3 B is from the scheme of installation of impeller blade at present of looking of the wind-driven generator B-B direction shown in Fig. 1.Respectively as shown in Figure 3 A and Figure 3 B, when described wind-driven generator 100 starts, described upper impeller blade 62 is along the i.e. counterclockwise rotation of the direction shown in w1 in Fig. 3 A, described lower impeller blade 52 is clockwise direction rotation along the direction shown in w2 in Fig. 3 B, therefore, the sense of rotation of the two is contrary, the moment direction producing is also contrary, when described upper impeller blade 62 identical with material and the shape of lower impeller blade 52, and the material of upper impeller fixing rod 61 and lower impeller fixing rod 51 and shape are when also identical, it is zero that the rotary torsion of complete machine is offset, and, described internal rotor 9 and external rotor 4 are directly driven by upper impeller shaft 63 and lower impeller shaft 53 respectively, thereby accelerated the speed of generator cutting magnetic line, and because the sense of rotation of the two is contrary, therefore, the density of cutting magnetic line also increases, the generated energy of generator is greatly improved.
In the utility model embodiment, preferred, described upper impeller blade 62 and lower impeller blade 52 are prismatic blade, and the quantity of the two is all at least two, and each blade at least needs a strut to be connected with impeller shaft accordingly.As shown in Figure 1, described upper impeller 6 and lower impeller 5 are H shape impeller, can also be resistance type impeller as S type impeller etc., can also adopt lift-type impeller as Φ type impeller etc.As shown in Fig. 3 A and 3B, the turning radius of described upper impeller 6 is R1, and the turning radius of lower impeller 5 is R2, and R1 described in the present embodiment equates with R2, can also be that described R1 and R2 are unequal.In the present embodiment, preferred, the height of described upper impeller 6 and the height of lower impeller 5 are equal, as long as can realize the utility model object, the height of described upper impeller 6 and lower impeller 5 can also be unequal.
Fig. 4 is the sectional view that under wind-driven generator described in the utility model, rotation is supported on B-B direction in Fig. 1.As shown in the figure, described lower rotary support 2 comprises lower rotation support sleeve 21, angular contact bearing 22 and rotation mandrel 23, described lower rotation support sleeve 21 is fixedly connected with lower horizontal support 71, and also assemble together with angular contact bearing 22 with described rotation mandrel 23, described flange 3 is fixed together with rotation mandrel 23 by being positioned at the key 31 of its inner side, therefore, flange 3, along with rotation mandrel 23 can together rotate freely with respect to described lower rotation support sleeve 21 and fixed support 7, has also guaranteed that rotation mandrel 23 can bear enough axial forces and radial force simultaneously.As mentioned above, one end of described generator external rotor 4 is fixed on lower rotary support 2 by flange 3, as shown in Figure 2, described generator external rotor 4 is to be fixed on flange 3, by flange 3 and the rotation mandrel 23 of lower rotary support 2, be fixed together again, so, power station external rotor 4 can along with rotation mandrel 23 together 360 ° freely rotate.
Simultaneously, for reducing the impact of external environment condition on described lower rotary support 2, top and bottom at described lower rotation support sleeve 21 are equipped with stifle 24 on lower rotary support sealing gasket 25 and lower rotary support from inside to outside successively, between the stifle of described lower rotation support, top and rotation mandrel 23, lower rotary support seal ring 26 is also installed, thereby the parts that make described lower rotary support 2 and be associated, in sealing state, can be avoided the inside infringement of the severe physical environment of sleet sand and dust to lower rotary support 2 completely.
For preventing wind-driven generator 100 when rotated, acutely rock its upper end, described fixed support 7 also comprises rotary support 8, upper horizontal support 72 and column 73, as shown in Figure 1, described upper rotary support 8 is fixed in horizontal support 72, described column 73, between upper horizontal support 72 and lower horizontal support 71, for supporting described upper horizontal support 72, also can be strengthened the intensity of described wind-driven generator 100 simultaneously.Fig. 5 is that described upper rotary support 8 is at the sectional view of B-B direction, as shown in the figure, described upper rotary support 8 comprises rotary support axle sleeve 81 and selfaligning bearing 82, and described upper rotary support axle sleeve 81 is fixed in horizontal support 8, and is assemblied on upper impeller shaft 63 by selfaligning bearing 82.Same, for reducing the impact of external environment condition on described upper rotary support 8, the top of rotary support axle sleeve 81 and bottom are equipped with rotary support sealing gasket 84 and upper rotary support stifle 83 from inside to outside successively on described, between the stifle of rotary support bottom and upper impeller shaft 63, rotary support seal ring 86 is also installed on described, thereby the parts that make described upper rotary support 8 and be associated, in sealing state, can be avoided the inside infringement of the severe physical environment of sleet sand and dust to upper rotary support 8 completely.
The supporting structure of fixed support 7 described in the utility model, except mono-layer propping structure in bottom as above and top and bottom double layer support structure, can also adopt middle part and bottom double layer support structure or top, middle part and three layers of bottoms supporting structure, or even multi-layer supporting structure.
During wind-driven generator 100 work described in the utility model, according to classical electromagnetic theory and induction, produce electric basic theories, conductor produces induction electromotive force and is while doing the cutting magnetic line movement rotating in magnetic field
U＝NSBwsin(wt) (1-1)
Wherein, N-number of turns; S-coiling area; B-electromagnetic intensity; W-angular velocity of rotation;
The t-operating time;
Wind-driven generator 100 described in the utility model makes generator inner rotor 9 coaxially nested with external rotor 4, and under two groups of impellers drives up and down with contrary airfoil fan, two mutually coaxial reverse rotation of rotor, even if the absolute rotating speed of inner and outer Rotator is lower, larger that angular velocity becomes that relatively rotate that also can make magnetic field and winding department, can be drawn by formula (1-1)
U＝NBS(w1-w2)sin[(w1-w2)t] (1-2)
Wherein, w1 and w2 are the rotational angular velocities of two rotors.
In the ideal situation, when two impellers are under identical wind speed, rotating speed equal and opposite in direction, opposite direction, the rotating speed of external rotor 4 relative internal rotors 9 has increased by one times, so, can obtain induction electromotive force in the ideal situation
U
id＝2NSBsin(2wt) (1-3)
Comparison type (1-1) and formula (1-3) are known: | U
id|=2|U|, under identical generator and wind condition, wind-driven generator 100 described in the utility model improves 1 times than the generating capacity of existing wind power generating set, if realize the words of wind-driven generator output equal-wattage P, for existing wind energy conversion system, impeller is absorbed power P from wind:
P＝(C
Pρsv
1 3)/2 (1-4)
Wherein, C
pthe power coefficient of-impeller; ρ-air density; The sweeping area of s--impeller;
V
1wind speed during-original single impeller wind energy conversion system absorbed power P;
By formula (1-4), released
For wind-driven generator 100 described in the utility model, owing to adopting bilobed wheel structure, the power P that bilobed wheel absorbs from wind:
P＝2×[(C
Pρsv
2 3)/2] (1-6)
Wherein, v
2wind speed during-wind energy conversion system 100 absorbed power P described in the utility model;
By formula (1-6), released
Known according to formula (1-5) and formula (1-7):
Therefore, if realize the words of wind-driven generator output equal-wattage, the requirement of 100 pairs of wind speed of wind-driven generator described in the utility model has been reduced to original 80%, lower at some wind speed like this, wind resource also can be used wind-power electricity generation in not abundant area relatively, and meanwhile, wind-driven generator 100 described in the utility model is to be generated electricity by impeller direct drive generator, remove the high and troublesome speed increaser of price from, thereby greatly reduced cost.
Claims (9)
1. a wind-driven generator, it is characterized in that, described wind-driven generator (100) comprises support tower (1), fixed support (7), lower horizontal support (71), lower rotary support (2), flange (3), generator external rotor (4), internal rotor (9), lower impeller (5), upper impeller (6), and described lower impeller (5) comprises lower impeller shaft (53); Described upper impeller (6) comprises impeller shaft (63); described fixed support (7) is fixed in support tower (1), lower horizontal support (71) is positioned at the bottom of described fixed support (7), described lower rotary support (2) is fixed in lower horizontal support (71), one end of described generator external rotor (4) is fixed on lower rotary support (2) by flange (3), the other end and described lower impeller shaft (53) are fixed together, described lower impeller shaft (53) is tube-in-tube structure, on its top, be provided with bearing (54), described upper impeller shaft (63) is through the sleeve of bearing (54) and lower impeller shaft (53), and be fixedly connected with internal rotor (9).
2. a kind of wind-driven generator according to claim 1, it is characterized in that, described lower impeller (5) also comprises lower impeller strut (51) and lower impeller blade (52), and described lower impeller blade (52) is connected on lower impeller shaft (53) by lower impeller strut (51); Described upper impeller (6) also comprises impeller strut (61) and upper impeller blade (62), and described upper impeller blade (62) is connected on upper impeller shaft (63) by upper impeller strut (61).
3. a kind of wind-driven generator according to claim 2, is characterized in that, the installation direction of described upper impeller blade (62) and lower impeller blade (52) is contrary.
4. a kind of wind-driven generator according to claim 3, is characterized in that, described upper impeller blade (62) and lower impeller blade (52) are prismatic blade, and quantity is at least two.
5. a kind of wind-driven generator according to claim 4, it is characterized in that, described lower rotary support (2) comprises lower rotation support sleeve (21), angular contact bearing (22) and rotation mandrel (23), described lower rotation support sleeve (21) is fixedly connected with lower horizontal support (71), and also assemble together with angular contact bearing (22) with described rotation mandrel (23), described flange (3) is fixed together with rotation mandrel (23) by being positioned at the key (31) of its inner side.
6. a kind of wind-driven generator according to claim 5, it is characterized in that, top and bottom at described lower rotation support sleeve (21) are equipped with stifle (24) on lower rotary support sealing gasket (25) and lower rotary support from inside to outside successively, between the stifle of described lower rotation support, top and rotation mandrel (23), lower rotary support seal ring (26) are also installed.
7. according to a kind of wind-driven generator described in any one claim in claim 1-6, it is characterized in that, described fixed support (7) also comprises rotary support (8), upper horizontal support (72) and column (73), it is upper that described upper rotary support (8) is fixed on horizontal support (72), and described column (73) is positioned between horizontal support (72) and lower horizontal support (71).
8. according to a kind of wind-driven generator described in any one claim in claim 7, it is characterized in that, described upper rotary support (8) comprises rotary support axle sleeve (81) and selfaligning bearing (82), it is upper that described upper rotary support axle sleeve (81) is fixed in horizontal support (8), and be assemblied on upper impeller shaft (63) by selfaligning bearing (82).
According to Claim 8 in a kind of wind-driven generator described in any one claim, it is characterized in that, top and the bottom of rotary support axle sleeve (81) is equipped with upper rotary support sealing gasket (84) and upper rotary support stifle (83) from inside to outside successively on described, between the stifle of rotary support bottom and upper impeller shaft (63), upper rotary support seal ring (86) is also installed on described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420325800.6U CN203906181U (en) | 2014-06-19 | 2014-06-19 | Wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420325800.6U CN203906181U (en) | 2014-06-19 | 2014-06-19 | Wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906181U true CN203906181U (en) | 2014-10-29 |
Family
ID=51780468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420325800.6U Expired - Fee Related CN203906181U (en) | 2014-06-19 | 2014-06-19 | Wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906181U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559147A (en) * | 2017-10-23 | 2018-01-09 | 朱允 | Wind power generation plant and corresponding wind power generation tower suitable for gentle breeze environment |
-
2014
- 2014-06-19 CN CN201420325800.6U patent/CN203906181U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559147A (en) * | 2017-10-23 | 2018-01-09 | 朱允 | Wind power generation plant and corresponding wind power generation tower suitable for gentle breeze environment |
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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 |
Granted publication date: 20141029 Termination date: 20190619 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |