CN103174584A - Novel auto-launching-type Darrieus-Savonius combined type vertical shaft wind machine - Google Patents
Novel auto-launching-type Darrieus-Savonius combined type vertical shaft wind machine Download PDFInfo
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- CN103174584A CN103174584A CN2013101119850A CN201310111985A CN103174584A CN 103174584 A CN103174584 A CN 103174584A CN 2013101119850 A CN2013101119850 A CN 2013101119850A CN 201310111985 A CN201310111985 A CN 201310111985A CN 103174584 A CN103174584 A CN 103174584A
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Abstract
The invention discloses a novel auto-launching-type Darrieus-Savonius combined type vertical shaft wind machine which comprises an S-shaped wind machine, an overrun clutch, a generator, D-shaped wind machines and a plurality of stand rods. A rotating shaft of the generator is connected with a shaft of the S-shaped wind machine in a transmission mode, and the plurality of stand rods are evenly distributed on the generator. The S-shaped wind machine is connected with the D-shaped wind machines through the overrun clutch, and the S-shaped wind machine is placed above the D-shaped wind machines. The D-shaped wind machines form an H-shaped wind machine with three blades, and the blades of the D-shaped wind machines are in an arc shape. The S-shaped wind machine is a double-blade spiral wind machine with 90-degree blade twist angle. After the S-shaped wind machine drives the D-shaped wind machines to be launched, the action of the S-shaped wind machine on the D-shaped wind machines is interrupted, so that the D-shaped wind machines are launched, the aerodynamic performance of the D-shaped wind machines is not affected by the S-shaped wind machine, and the property of the combined type vertical shaft wind machine is greatly improved.
Description
Technical field
The present invention relates to a kind of novel self set-up type Darrieus-Savonius Combined vertical axis wind turbine, belong to technical field of wind power generation.
Background technique
Darrieus wind energy conversion system efficient in vertical axis windmill is higher, does not need wind apparatus and driving mechanism, and generator is arranged on ground, is easy to maintenance and safeguards.But there is the shortcoming be difficult for self-starting in the Darrieus wind energy conversion system, and namely under larger wind speed, the tangential thrust that static wind wheel blade produces is still less, is not enough to overcome the tangential resistance of blade and rotates.Cross stall zone or self-starting for making the operation of Darrieus wind energy conversion system, the method that adopts at present both at home and abroad has: the starting of (1) additional electrical motivation, (2) increase rotor solidity, the tilting of (3) change blade is the angle of attack windward, and (4) serially add the Savonius wind energy conversion system.Wherein serially add S type wind energy conversion system and be a kind of the simplest be also effective method.S type wind energy conversion system belongs to shaft resistance type windmill, and starting torque is large, and after D type wind energy conversion system serially added S type wind energy conversion system, what S type wind energy conversion system produced made D type wind energy conversion system overcome the tangential resistance of blade than high-torque, surmounts the stall zone and starts.In view of two large class vertical axis aerogenerators excellent scarce characteristic separately, design the novel wind motor model that can start voluntarily under low wind speed, it is the pattern of Darrieus-Savonius Combined vertical axis wind turbine, so just can solve preferably the problem that the low wind speed of D type wind energy conversion system can not start, realize the mutual supplement with each other's advantages of S type wind energy conversion system and D type wind energy conversion system.
From the Wind Power Utilization angle, look like now the more rich place of wind-resources such as Inner Mongol, Xinjiang, it is general that what adopt is horizontal axis wind-driven generator, and near saturated.But in the place or architectural complex of landform more complicated, due to the impact of various environmental factors, horizontal axis wind-driven generator is difficult to be competent at.And general lift vertical shaft wind energy conversion system do not reach the requirement that low wind speed starts, have can not self-starting shortcoming.So the advantage of Combined vertical axis wind turbine just appears undoubtedly.
In sum, the Darrieus-Savonius Combined vertical axis wind turbine enlarges Wind Power Utilization planning regional to improving wind energy utilization, improves the wind-power electricity generation scale, has important strategic importance.
And existing Darrieus-Savonius Combined vertical axis wind turbine, also there is intrinsic potential technology defective, main manifestations is in the following areas: although existing Darrieus-Savonius Combined vertical axis wind turbine combines the advantage of D type and S type, but only considered that the startup high-torque of S type drives the rotation of D type, and do not consider that the S type itself belongs to the resistance type blower fan, after the work of combined wind machine, the rotation meeting of S type produces very large negative effect to the aeroperformance of the D type of lift-type, thereby affects overall performance.The lifting so the performance of Darrieus-Savonius Combined vertical axis wind turbine requires study.
Summary of the invention
Do not consider that in order to overcome existing Combined vertical axis wind turbine the rear S type of combination itself belongs to the resistance type blower fan, after the work of combined wind machine, the rotation meeting of S type produces very large negative effect to the aeroperformance of the D type of lift-type, thereby affect the shortcoming of overall performance, the invention provides and a kind ofly can start automatically, realize that the S type is minimum and can improve the novel self set-up type Darrieus-Savonius Combined vertical axis wind turbine of the wind energy utilization of whole Combined vertical axis wind turbine to the effect of aerodynamic performance of D type.
The technical solution used in the present invention is:
Novel self set-up type Darrieus-Savonius Combined vertical axis wind turbine, comprise S type wind energy conversion system, free wheel device, generator, D type wind energy conversion system and some vertical rods, the rotating shaft of described generator connects with the shaft drive of described S type wind energy conversion system, and some described vertical rods are distributed on described generator; Described S type wind energy conversion system connects with described D type wind energy conversion system by described free wheel device, and described S type wind energy conversion system is arranged in the top of described D type wind energy conversion system; It is characterized in that: described D type wind energy conversion system is the three blade-shaped wind energy conversion systems that are the H type, and the blade of described D type wind energy conversion system is curved; Described S type wind energy conversion system is that twist angle of blade is the double-leaf spirality wind energy conversion system of 90 °.
Further, the radian of the blade of described D type wind energy conversion system is 0.36～0.40, and its cross section is crescent shape, and integral body is curved H type.
Further, described free wheel device is the non-contact type wedge overrunning clutch.
Further, described non-contact type wedge overrunning clutch comprises outer shroud, interior ring, wedge system, fixedly back-up ring, baffle ring, end cap, bearing, back-up ring and torsion spring, and the raceway between described interior ring working surface and described outer shroud is equipped with the wedge system that some voussoirs, backing pin form; Described torsion spring is located at respectively on the cylinder of voussoir two ends, one end of torsion spring inserts in the osculum of voussoir section, the other end leans against on backing pin, described fixedly back-up ring connects together interior ring and described wedge system, described outer shroud is connected with flange by screw, and described interior ring is arranged on the axle of S type wind energy conversion system, and described exterior ring cap is contained on two bearings of interior ring, be connected with D type wind energy conversion system, and tightened together by screw and two described end caps.
The present invention is under low wind speed, and S type wind energy conversion system rotates, and the voussoir of non-contact type wedge overrunning clutch is held with interior environmental protection under the torsion spring effect and contacted, and makes the S type drive the rotation of D type.When rotating speed reaches when surmounting speed, be the rotating speed of D type during greater than S type rotating speed, the centrifugal moment of eccentric voussoir increases, so that overcomes torsion spring and other resisting moment, voussoir is radially thrown off with interior ring working surface, because be non-contacting, thus a micro-gap formed, thus avoided friction and wear, clutch is realized contactless, S type and D type disconnect like this, although the S type is also rotating, its disappears to the inhibition of D type.Combined vertical axis wind turbine has been realized self-starting, and wind energy conversion system when normal operation, and the S type is minimum on the impact of D type.
The present invention adopts free wheel device as the coupling of S type in the Darrieus-Savonius Combined vertical axis wind turbine and D type.Can the S type drive make after the D type rotates both automatic trips from, namely solved the difficult shortcoming that starts of D type blower fan self, can solve again after the S type starts the D type, the obstruction impact of S type on the D type makes the best performance of combined wind energy conversion system.So, used the combined wind machine of free wheel device, the starting drives such as motor needn't be set start.Starting the lower advantage of wind speed makes the combined wind machine of having used free wheel device can work in more complicated or architectural complex in landform.And this Combined vertical axis wind turbine is convenient to hide, and for example, is hidden in the grove of mountain area, perhaps as floater, explores or army's electricity consumption to provide open-air, is applied to scientific investigation and military field.
The present invention is after the S type starts, and in driving, ring and wedge system rotate generation centrifugal force together, and the voussoir strong point is formed a torque, and its direction is opposite with the torque that torsion spring imposes on voussoir, and the trend that voussoir and outer shroud are disengaged is arranged.The torque that produces when voussoir centrifugal force is not enough to overcome the torque that torsion spring imposes on voussoir, and namely the rotating speed of S type is greater than the situation of D type, and voussoir and interior ring working surface are in contact with one another, and produces the relative sliding friction with outer shroud, is the bonding state of free wheel device.Raising along with S type rotating speed, voussoir centrifugal force increases, when interior ring rotating speed meets or exceeds the minimum non-contact rotating speed of clutch, the torque that voussoir centrifugal force produces is increased to the torque that imposes on voussoir greater than torsion spring, force voussoir deflection and disengage with outer shroud, realizing clutch frictionless non-contact rotation, at this moment no longer driving the driven member rotation, be that S type and D type disconnect, be the state that surmounts of free wheel device.Make again the S type minimum on the impact of D type in the situation that the D type starts smoothly like this, greatly improved the performance of Combined vertical axis wind turbine.
Beneficial effect of the present invention is embodied in: the wind energy conversion system by the D type of the S type wind energy conversion system of a resistance type and a lift-type forms, and both connect with the non-contact type wedge overrunning clutch; The high torque of shaft resistance type windmill drives the rotation of lift-type wind energy conversion system, and when the lift-type wind energy conversion system worked, free wheel device can make S type and D type disconnect, and made shaft resistance type windmill minimum on the impact of lift-type wind energy conversion system.
Description of drawings
Fig. 1 is self set-up type Combined vertical axis wind turbine structural drawing of the present invention.
Fig. 2 is non-contact type wedge overrunning clutch structure sectional view of the present invention.
Fig. 3 is non-contact type wedge overrunning clutch plan view of the present invention.
Fig. 4 is that non-contact type wedge overrunning clutch of the present invention surmounts view.
Fig. 5 is non-contact type wedge overrunning clutch bonding state schematic diagram of the present invention.
Embodiment
Referring to figs. 1 to Fig. 5, novel self set-up type Darrieus-Savonius Combined vertical axis wind turbine, comprise S type wind energy conversion system 1, free wheel device 2, generator 3, D type wind energy conversion system 4 and some vertical rods 5, the rotating shaft of described generator 3 connects with the shaft drive of described S type wind energy conversion system 1, and some described vertical rods 5 are distributed on described generator 3; Described S type wind energy conversion system 1 connects with described D type wind energy conversion system 4 by described free wheel device 2, and described S type wind energy conversion system 1 is arranged in the top of described D type wind energy conversion system 4; Described D type wind energy conversion system 4 is for being three blade-shaped wind energy conversion systems of H type, and the blade of described D type wind energy conversion system 4 is curved; Described S type wind energy conversion system 1 is the double-leaf spirality wind energy conversion system of 90 ° for twist angle of blade.
Further, the radian of the blade of described D type wind energy conversion system 4 is 0.36～0.40, and its cross section is crescent shape, and integral body is curved H type.
Further, described free wheel device 2 is the non-contact type wedge overrunning clutch.
Further, described non-contact type wedge overrunning clutch 2 comprises outer shroud 21, interior ring 22, wedge system, fixedly back-up ring 24, baffle ring 25, end cap 26, bearing 27, back-up ring 28 and torsion spring 30, and the raceway between described interior ring 22 working surfaces and described outer shroud 21 is equipped with the wedge system that some voussoirs 23, backing pin 29 form; Described torsion spring 30 is located at respectively on voussoir 23 two ends cylinders, one end of torsion spring 30 inserts in the osculum of voussoir 23 sections, the other end leans against on backing pin 29, described fixedly back-up ring 24 connects together interior ring 22 and described wedge system, described outer shroud 21 is connected with flange by screw, and described interior ring 22 is arranged on the axle of S type wind energy conversion system 1, and described outer shroud 21 is sleeved on two bearings of interior ring 22, be connected with D type wind energy conversion system 4, and tightened together by screw and two described end caps 26.
The present invention is under low wind speed, and S type wind energy conversion system 1 rotates, and the voussoir 23 of non-contact type wedge overrunning clutch 2 keeps in touch with interior ring 22 under torsion spring 30 effects, makes the S type drive the rotation of D type.When rotating speed reaches when surmounting speed, be the rotating speed of D type during greater than S type rotating speed, the centrifugal moment of eccentric voussoir increases, so that overcomes torsion spring and other resisting moment, voussoir is radially thrown off with interior ring working surface, because be non-contacting, thus a micro-gap formed, thus avoided friction and wear, clutch is realized contactless, S type and D type disconnect like this, although the S type is also rotating, its disappears to the inhibition of D type.Combined vertical axis wind turbine has been realized self-starting, and wind energy conversion system when normal operation, and the S type is minimum on the impact of D type.
The present invention adopts free wheel device 2 as the coupling of S type in the Darrieus-Savonius Combined vertical axis wind turbine and D type.Can the S type drive make after the D type rotates both automatic trips from, namely solved the difficult shortcoming that starts of D type blower fan 4 self, can solve again after the S type starts the D type, the obstruction impact of S type on the D type makes the best performance of combined wind energy conversion system.So, used the combined wind machine of free wheel device, the starting drives such as motor needn't be set start.Starting the lower advantage of wind speed makes the combined wind machine of having used free wheel device can work in more complicated or architectural complex in landform.And this Combined vertical axis wind turbine is convenient to hide, and for example, is hidden in the grove of mountain area, perhaps as floater, explores or army's electricity consumption to provide open-air, is applied to scientific investigation and military field.
The present invention is after the S type starts, and in driving, ring 22 and wedge system rotate generation centrifugal force together, and voussoir 23 strong points are formed a torque, and its direction is opposite with the torque that torsion spring 30 imposes on voussoir, and the trend that voussoir 23 and outer shroud 21 are disengaged is arranged.The torque that produces when voussoir 23 centrifugal force is not enough to overcome the torque that torsion spring 30 imposes on voussoir 23, be that the rotating speed of S type is greater than the situation of D type, voussoir and interior ring working surface are in contact with one another, and produce the relative sliding friction with outer shroud 21, are the bonding state of free wheel device 2.Raising along with S type rotating speed, voussoir centrifugal force increases, when interior ring 22 rotating speeds meet or exceed the minimum non-contact rotating speed of clutch, the torque that voussoir 23 centrifugal force produce is increased to the torque that imposes on voussoir greater than torsion spring 30, force voussoir deflection and disengage with outer shroud, realizing clutch frictionless non-contact rotation, at this moment no longer driving the driven member rotation, be that S type and D type disconnect, be the state that surmounts of free wheel device.Make again the S type minimum on the impact of D type in the situation that the D type starts smoothly like this, greatly improved the performance of Combined vertical axis wind turbine.
Claims (4)
1. novel self set-up type Darrieus-Savonius Combined vertical axis wind turbine, comprise S type wind energy conversion system, free wheel device, generator, D type wind energy conversion system and some vertical rods, the rotating shaft of described generator connects with the shaft drive of described S type wind energy conversion system, and some described vertical rods are distributed on described generator; Described S type wind energy conversion system connects with described D type wind energy conversion system by described free wheel device, and described S type wind energy conversion system is arranged in the top of described D type wind energy conversion system; It is characterized in that: described D type wind energy conversion system is the three blade-shaped wind energy conversion systems that are the H type, and the blade of described D type wind energy conversion system is curved; Described S type wind energy conversion system is that twist angle of blade is the double-leaf spirality wind energy conversion system of 90 °.
2. novel self set-up type Darrieus-Savonius Combined vertical axis wind turbine as claimed in claim 1, it is characterized in that: the radian of the blade of described D type wind energy conversion system is 0.36～0.40, and its cross section is crescent shape, integral body is curved H type.
3. novel self set-up type Darrieus-Savonius Combined vertical axis wind turbine as claimed in claim 2, it is characterized in that: described free wheel device is the non-contact type wedge overrunning clutch.
4. novel self set-up type Darrieus-Savonius Combined vertical axis wind turbine as claimed in claim 3, it is characterized in that: described non-contact type wedge overrunning clutch comprises outer shroud, interior ring, wedge system, fixedly back-up ring, baffle ring, end cap, bearing, back-up ring and torsion spring, and the raceway between described interior ring working surface and described outer shroud is equipped with the wedge system that some voussoirs, backing pin form; Described torsion spring is located at respectively on the cylinder of voussoir two ends, one end of torsion spring inserts in the osculum of voussoir section, the other end leans against on backing pin, described fixedly back-up ring connects together interior ring and described wedge system, described outer shroud is connected with flange by screw, and described interior ring is arranged on the axle of S type wind energy conversion system, and described exterior ring cap is contained on two bearings of interior ring, be connected with D type wind energy conversion system, and tightened together by screw and two described end caps.
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| CN2013101119850A CN103174584A (en) | 2013-04-01 | 2013-04-01 | Novel auto-launching-type Darrieus-Savonius combined type vertical shaft wind machine |
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| CN2013101119850A CN103174584A (en) | 2013-04-01 | 2013-04-01 | Novel auto-launching-type Darrieus-Savonius combined type vertical shaft wind machine |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956258A (en) * | 2014-05-10 | 2014-07-30 | 南京南瑞集团公司 | Mechanical rotating type adjustable reactor |
| CN104314753A (en) * | 2014-10-13 | 2015-01-28 | 河海大学 | Lift and drag complementary type vertical shaft wind turbine |
| CN104832366A (en) * | 2015-04-20 | 2015-08-12 | 东北农业大学 | Self-starting dual-motor lift-drag combination type vertical-axis wind power generator |
| CN105156273A (en) * | 2015-08-11 | 2015-12-16 | 王平利 | Non-stator high-frequency and low-rotating-speed wind driven generator with electron core |
| CN106194563A (en) * | 2016-05-18 | 2016-12-07 | 雒龙泉 | A kind of combined ocean power generating device |
| CN106499579A (en) * | 2015-09-07 | 2017-03-15 | 江苏中创华俊新能源设备科技股份有限公司 | In a kind of wind-driven generator using freewheel clutch transmitting torque wind wheel structure |
| CN106523269A (en) * | 2015-09-07 | 2017-03-22 | 江苏中创华俊新能源设备科技股份有限公司 | Combined type vertical-axis wind turbine |
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| CN202545107U (en) * | 2012-03-12 | 2012-11-21 | 浙江工业大学 | Combined vertical axis wind turbine |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956258A (en) * | 2014-05-10 | 2014-07-30 | 南京南瑞集团公司 | Mechanical rotating type adjustable reactor |
| CN104314753A (en) * | 2014-10-13 | 2015-01-28 | 河海大学 | Lift and drag complementary type vertical shaft wind turbine |
| CN104832366A (en) * | 2015-04-20 | 2015-08-12 | 东北农业大学 | Self-starting dual-motor lift-drag combination type vertical-axis wind power generator |
| CN105156273A (en) * | 2015-08-11 | 2015-12-16 | 王平利 | Non-stator high-frequency and low-rotating-speed wind driven generator with electron core |
| CN106499579A (en) * | 2015-09-07 | 2017-03-15 | 江苏中创华俊新能源设备科技股份有限公司 | In a kind of wind-driven generator using freewheel clutch transmitting torque wind wheel structure |
| CN106523269A (en) * | 2015-09-07 | 2017-03-22 | 江苏中创华俊新能源设备科技股份有限公司 | Combined type vertical-axis wind turbine |
| CN106194563A (en) * | 2016-05-18 | 2016-12-07 | 雒龙泉 | A kind of combined ocean power generating device |
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Application publication date: 20130626 |