CN201818433U - Vertical shaft wind turbine with a plurality of layers of wind wheels - Google Patents
Vertical shaft wind turbine with a plurality of layers of wind wheels Download PDFInfo
- Publication number
- CN201818433U CN201818433U CN201020540286XU CN201020540286U CN201818433U CN 201818433 U CN201818433 U CN 201818433U CN 201020540286X U CN201020540286X U CN 201020540286XU CN 201020540286 U CN201020540286 U CN 201020540286U CN 201818433 U CN201818433 U CN 201818433U
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- wind wheel
- rotating shaft
- support
- blade
- wind
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Abstract
A vertical shaft wind turbine with a plurality of layers of wind wheels comprises at least two wind wheels with identical structures. Each wind wheel comprises a rotating shaft (1), a blade (2), a support frame (3) and a support frame (4), wherein the support frame (3) and the support frame (4) are fixedly connected between the blade (2) and the rotating shaft (1); the support frame (3) is parallel to the support frame (4); the rotating shafts (1) of all the wind wheels are superposed; the wind wheels with identical structures are laminated in the direction of the superposed rotating shafts (1); each of the support frames (4) of the wind wheels on the upper layer passes through the superposed rotating shafts (1) and is superposed with each of the support frames (3) on the wind wheels on the lower layer to form a structure that the wind wheels on the upper layer are arranged with the wind wheels on the lower layer on the superposed rotating shafts (1) in a staggered manner; and the lower ends of the superposed rotating shafts (1) are connected with a transmission shaft of a power generator or a wind-driven water elevator. The torque fluctuation of the vertical shaft wind turbine is enabled to be more stable, thereby facilitating stable power output, and reducing the fatigue degree of a transmission system.
Description
Technical field
The utility model relates to the wind energy conversion system field, relates in particular to a kind of vertical axis windmill with multilayer wind wheel.
Background technique
At present, two kinds of main vertical axis windmills are Φ type vertical axis windmill and H type vertical axis windmill.As shown in Figure 1, in H type vertical axis windmill, wind wheel comprises rotating shaft (1), blade (2) and support (3) and (4); Wherein, a fixedly connected support (3) and a support (4) between each blade (2) and the rotating shaft (1), and also the support (3) that connects between each blade (2) and the rotating shaft (1) is parallel to each other with support (4); Rotating shaft (1) lower end is connected with the transmission shaft of generator or wind power water pumping machine, realizes the conversion of moment of torsion transmission and wind energy.
Present vertical axis windmill generally only has one deck wind wheel, no matter be Φ type or H type vertical axis windmill, it is in running, because the angle (being the angle of attack) of the blade string of a musical instrument and wind direction is constantly to change, so its output torque is constantly to fluctuate in one-period.What Fig. 2 represented is the change in torque curve synoptic diagrams of certain three blade vertical axis windmill in one-period; Wherein, abscissa is represented angle of attack θ (0 °＜=θ＜=360 °), and y coordinate is represented torque coefficient C
TAs shown in Figure 2, this vertical axis windmill is in one-period, and maximum torque coefficient reaches 0.93, and the minimal torque coefficient has only 0.43, and both differ nearly 2 times of relations.Therefore, cause the output power instability, generator or wind power water pumping machine apolegamy cause difficulty; And the fluctuation of moment of torsion can cause the fatigue of transmission system (transmission shaft, bearing etc.) structure, reduces working life.
How eliminating the wave properties of moment of torsion, guarantee power stability output, improve the transmission system degree of fatigue, is one of emphasis of vertical axis windmill structure technology research.
The model utility content
A kind of vertical axis windmill with multilayer wind wheel is provided in the utility model, can have made the torque ripple of vertical axis windmill milder, helped power stability output, reduced the degree of fatigue of transmission system.
A kind of vertical axis windmill with multilayer wind wheel comprises:
At least the identical wind wheel of two-layer structure;
Wherein, the described wind wheel of each layer comprises rotating shaft (1), blade (2) and support (3) and support (4); A fixedly connected described support (3) and a described support (4) between each described blade (2) and the described rotating shaft (1), and the described support (3) that connects between each described blade (2) and the described rotating shaft (1) is parallel to each other with described support (4);
Wherein, all described supports (3) of each layer wind wheel are positioned on the same horizontal plane of vertical rotation axis (1), and all described supports (4) of each layer wind wheel are positioned on another horizontal plane of vertical rotation axis (1);
Wherein, the described rotating shaft (1) of each layer wind wheel overlaps, and the identical wind wheel of described two-layer structure at least is stacked on the direction of the rotating shaft (1) that overlaps;
Wherein, the described support of each of upper strata wind wheel (4) passes the rotating shaft (1) of coincidence, and overlaps with a described support (3) of lower floor wind wheel respectively, forms described upper strata wind wheel and described lower floor wind wheel being staggeredly arranged in the rotating shaft (1) that overlaps;
Wherein, the rotating shaft of coincidence (1) lower end is connected with the transmission shaft of generator or wind power water pumping machine.
Alternatively, the quantity of the described blade (2) that comprises of the described wind wheel of each layer is 2 or 3 or 4.
Alternatively, described blade (2) is prismatic blade or bent blades.
Alternatively, the rectification covering of lines type is laid on the surface of described support (3).
Alternatively, recessed metacone shape before the cross section of described support (3) is.
Wherein, when overlooking, the angle between the support (3) that adjacent two blades (2) and described rotating shaft (1) connect is β, and β satisfies β=360 °/(i * j); Wherein, i represents the number of plies of wind wheel, and j represents the quantity of the blade (2) of each wind wheel.
Compared with prior art, the utlity model has following beneficial effect:
In the utility model, with at least two layers of wind wheel on the direction of rotating shaft, carry out stacked, be staggeredly arranged, different output torques is superposeed and affact in the rotating shaft, because the torque ripple of stack moment of torsion is milder, make rotating shaft can drive transmission system and stablize output power, reduce the degree of fatigue of transmission system, improve working life.
Description of drawings
In order to be illustrated more clearly in the utility model or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use among the embodiment below, apparently, accompanying drawing in describing below only is embodiments more of the present 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 structural representation of existing a kind of H type vertical axis windmill;
Fig. 2 is certain single wind wheel, the change in torque curve synoptic diagram of three blade vertical axis windmills in one-period;
A kind of structural representation with vertical axis windmill of multilayer wind wheel of Fig. 3 for providing in the utility model;
The cross sectional representation of a kind of support (3) of providing in the utility model is provided Fig. 4;
A kind of angle schematic representation that have 2 layer wind wheel, 3 blade vertical axis windmills support (3) that when overlooking adjacent two blades (2) and rotating shaft (1) connect between of Fig. 5 for providing in the utility model;
A kind of angle schematic representation that have 2 layer wind wheel, 2 blade vertical axis windmills support (3) that when overlooking adjacent two blades (2) and rotating shaft (1) connect between of Fig. 6 for providing in the utility model;
Fig. 7 is for providing the stack change in torque curve synoptic diagram of the vertical axis windmill with 2 layers of wind wheel, 3 blades in one-period in the utility model.
Embodiment
A kind of vertical axis windmill with multilayer wind wheel is provided in the utility model, this vertical axis windmill will at least two layers wind wheel on the direction of rotating shaft, carry out stacked, be staggeredly arranged, different output torques is superposeed and affact in the rotating shaft, because the torque ripple of stack moment of torsion is milder, make rotating shaft can drive transmission system and stablize output power, reduce the degree of fatigue of transmission system, improve working life.
Below in conjunction with the accompanying drawing in the utility model, the technological scheme in the utility model is clearly and completely described, 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.
See also Fig. 3, a kind of structural representation that Fig. 3 provides for the utility model with vertical axis windmill of multilayer wind wheel.As shown in Figure 3, this vertical axis windmill can comprise:
At least the identical wind wheel of two-layer structure;
Wherein, each layer wind wheel comprises rotating shaft (1), blade (2) and support (3) and support (4);
In the utility model, the quantity of the blade that each layer wind wheel comprises (2) can be as shown in Figure 33, also can be 2 or 4, and the embodiment of the invention does not limit; Wherein, blade (2) can be a prismatic blade, can be bent blades also, and the embodiment of the invention does not limit;
As shown in Figure 3, a fixedly connected support (3) and a support (4) between each blade (2) and the rotating shaft (1), and also the support (3) that connects between each blade (2) and the rotating shaft (1) is parallel to each other with support (4);
As shown in Figure 3, all supports (3) of each layer wind wheel are positioned on the same horizontal plane of vertical rotation axis (1), and all supports (4) of each layer wind wheel are positioned on another horizontal plane of vertical rotation axis (1);
As shown in Figure 3, all supports (3) of each layer wind wheel are higher than all supports (4) on gravitational direction;
As shown in Figure 3, the rotating shaft of each layer wind wheel (1) overlaps, the shared same rotating shaft of promptly all wind wheels (1), and also the wind wheel that two-layer structure is identical at least is stacked on the direction of the rotating shaft (1) that overlaps;
Wherein, each support (4) of upper strata wind wheel passes the rotating shaft (1) of coincidence, and overlaps with a support (3) of lower floor wind wheel respectively, forms upper strata wind wheel and lower floor's wind wheel being staggeredly arranged in the rotating shaft (1) that overlaps;
Wherein, the rotating shaft of coincidence (1) lower end is connected with the transmission shaft of generator or wind power water pumping machine, realizes the conversion of moment of torsion transmission and wind energy.
In the utility model, vertical axis windmill is when rotating, and each support (3) can be received blocking of wind-force, in order to strengthen the self-starting performance, can lay the rectification covering of lines type on the surface (comprising windward side and lee face) of each support (3).Wherein, the rectification covering of lines type can play the effect that reduces wind resistance, improves Wind Power Utilization efficient.
In the utility model, the cross section of each support (3) is preceding recessed metacone shape.See also Fig. 4, each support (3) cross sectional representation that Fig. 4 represents, as can be seen from Figure 4, the cross section of each support (3) is preceding recessed metacone shape, and wherein, the windward side is groove shapes, and lee face is "＞" shape.Produce pressure reduction enter the windward side that is groove shapes of each support (3) from all directions when less wind after, form thrust and promote the vertical axis windmill running, realize self-starting.Particularly, when the area in the windward side that is groove shapes of each support (3) was big more, vertical axis windmill self-starting performance was strong more.Thereby the vertical axis windmill with multilayer wind wheel that the utility model provides is also self-starting smoothly under the less situation of wind speed, reduces from the requirement of wind speed automatically, improves Wind Power Utilization efficient.
In the vertical axis windmill with multilayer wind wheel that the utility model provides, when overlooking, the angle between the support (3) that adjacent two blades (2) and rotating shaft (1) connect is β, and β satisfies β=360 °/(i * j); Wherein, i represents the wind wheel number of plies, i.e. the wind wheel number; J represents the quantity of the blade (2) of each wind wheel.
For instance, if the vertical axis windmill that provides in the utility model has 2 layers of wind wheel, and every layer of wind wheel comprise 3 blades (2), and when then overlooking, the angle between the support (3) that adjacent two blades (2) and rotating shaft (1) connect is β=360 °/(2 * 3)=60 °.As shown in Figure 5, what the support that dots (3) was represented is the support (3) of lower floor's wind wheel, and what the blade that dots (2) was represented is the blade (2) of lower floor's wind wheel; Support (3) expression of representing with solid line be the support (3) of upper strata wind wheel, blade (2) expression of representing with solid line be the blade (2) of upper strata wind wheel.
Again for instance, if the vertical axis windmill that provides in the utility model has 2 layers of wind wheel, and every layer of wind wheel comprise 2 blades (2), and when then overlooking, the angle between the support (3) that adjacent two blades (2) and rotating shaft (1) connect is β=360 °/(2 * 2)=90 °.As shown in Figure 6, what the support that dots (3) was represented is the support (3) of lower floor's wind wheel, and what the blade that dots (2) was represented is the blade (2) of lower floor's wind wheel; Support (3) expression of representing with solid line be the support (3) of upper strata wind wheel, blade (2) expression of representing with solid line be the blade (2) of upper strata wind wheel.
See also Fig. 7, Fig. 7 is the 2 layers of wind wheel that have that provide in the utility model, and every layer of wind wheel comprises the stack change in torque curve synoptic diagram of vertical axis windmill in one-period of 3 blades (2); Wherein, abscissa is represented angle of attack θ (0 °＜=θ＜=360 °), and y coordinate is represented torque coefficient C
TAs shown in Figure 7, this vertical axis windmill is in one-period, and maximum torque coefficient reaches 0.71, and the minimal torque coefficient has only 0.55, and both differ 30%, compare with Fig. 2, and torque ripple reduces significantly.Preferably, if wind wheel is 3 layers or 4 layers, then torque ripple can further reduce, thereby can be so that torque ripple is milder.
In the utility model, with at least two layers of wind wheel on the direction of rotating shaft, carry out stacked, be staggeredly arranged, different output torques is superposeed and affact in the rotating shaft, because the torque ripple of stack moment of torsion is milder, make rotating shaft can drive transmission system and stablize output power, reduce the degree of fatigue of transmission system, improve working life.
More than a kind of vertical axis windmill with multilayer wind wheel that provides in the utility model is described in detail, used specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation just is used for helping to understand the utility model; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (6)
1. the vertical axis windmill with multilayer wind wheel is characterized in that, comprising:
At least the identical wind wheel of two-layer structure;
Wherein, the described wind wheel of each layer comprises rotating shaft (1), blade (2) and support (3) and support (4); A fixedly connected described support (3) and a described support (4) between each described blade (2) and the described rotating shaft (1), and the described support (3) that connects between each described blade (2) and the described rotating shaft (1) is parallel to each other with described support (4);
Wherein, all described supports (3) of each layer wind wheel are positioned on the same horizontal plane of vertical rotation axis (1), and all described supports (4) of each layer wind wheel are positioned on another horizontal plane of vertical rotation axis (1);
Wherein, the described rotating shaft (1) of each layer wind wheel overlaps, and the identical wind wheel of described two-layer structure at least is stacked on the direction of the rotating shaft (1) that overlaps;
Wherein, the described support of each of upper strata wind wheel (4) passes the rotating shaft (1) of coincidence, and overlaps with a described support (3) of lower floor wind wheel respectively, forms described upper strata wind wheel and described lower floor wind wheel being staggeredly arranged in the rotating shaft (1) that overlaps;
Wherein, the rotating shaft of coincidence (1) lower end is connected with the transmission shaft of generator or wind power water pumping machine.
2. vertical axis windmill according to claim 1 is characterized in that, the quantity of the described blade (2) that the described wind wheel of each layer comprises is 2 or 3 or 4.
3. vertical axis windmill according to claim 1 is characterized in that, described blade (2) is prismatic blade or bent blades.
4. vertical axis windmill according to claim 1 is characterized in that, the rectification covering of lines type is laid on the surface of described support (3).
5. vertical axis windmill according to claim 1 is characterized in that, the cross section of described support (3) is preceding recessed metacone shape.
6. according to any described vertical axis windmill of claim 1～5, it is characterized in that,
When overlooking, the angle between the support (3) that adjacent two blades (2) and described rotating shaft (1) connect is β, and β satisfies β=360 °/(i * j); Wherein, i represents the number of plies of wind wheel, and j represents the quantity of the blade (2) of each wind wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020540286XU CN201818433U (en) | 2010-09-17 | 2010-09-17 | Vertical shaft wind turbine with a plurality of layers of wind wheels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020540286XU CN201818433U (en) | 2010-09-17 | 2010-09-17 | Vertical shaft wind turbine with a plurality of layers of wind wheels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201818433U true CN201818433U (en) | 2011-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020540286XU Expired - Lifetime CN201818433U (en) | 2010-09-17 | 2010-09-17 | Vertical shaft wind turbine with a plurality of layers of wind wheels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201818433U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956670A (en) * | 2010-09-17 | 2011-01-26 | 青海风发科技发展有限公司 | Vertical axis wind turbine with multilayer wind wheels |
| WO2012034370A1 (en) * | 2010-09-13 | 2012-03-22 | 青海风发科技发展有限公司 | Vertical axis wind turbine with self starting device |
-
2010
- 2010-09-17 CN CN201020540286XU patent/CN201818433U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012034370A1 (en) * | 2010-09-13 | 2012-03-22 | 青海风发科技发展有限公司 | Vertical axis wind turbine with self starting device |
| CN101956670A (en) * | 2010-09-17 | 2011-01-26 | 青海风发科技发展有限公司 | Vertical axis wind turbine with multilayer wind wheels |
| CN101956670B (en) * | 2010-09-17 | 2012-07-11 | 青海风发科技发展有限公司 | Vertical axis wind turbine with multilayer wind wheels |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110504 Effective date of abandoning: 20120711 |