CN101660488A - Vertical axis wind turbine - Google Patents
Vertical axis wind turbine Download PDFInfo
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- CN101660488A CN101660488A CN200810146731A CN200810146731A CN101660488A CN 101660488 A CN101660488 A CN 101660488A CN 200810146731 A CN200810146731 A CN 200810146731A CN 200810146731 A CN200810146731 A CN 200810146731A CN 101660488 A CN101660488 A CN 101660488A
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- vertical axis
- primary blades
- axis windmill
- blade
- crossbeam
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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 invention discloses a vertical axis wind turbine, which comprises at least three main blades (1), wherein the middle of each main blade (1) is fixed with one end of a beam (2); the other end of the beam (2) is fixed with the top of a rotating shaft (3); the beam (2) is fixed with the upper end and the lower end of the main blade (1) through a supporting blade (4) respectively; the rotating shaft (3) is vertically connected with a tower post (5); a supporting shaft (6) extends out of the top of the rotating shaft (3); the supporting shaft (6) is fixed with each beam (2) through a supportingrod (7); the upper end and the lower end of each main blade (1) are provided with a wingtip winglet (8) respectively; the upper end and the lower end of each main blade (1) extend out from the connecting point of both ends and the supporting blade (4) in a straight line ; all the main blades (1) are fixedly connected through a coupling ring (9); and the connecting point is arranged between the extending point of each main blade (1) and the wingtip winglet (8). The wind turbine has the advantages of simple structure, strong stability and high efficiency and is favorable for large-scale application.
Description
Technical field
The present invention relates to the wind energy application, particularly a kind of vertical axis windmill.
Background technique
At present, most widely used vertical axis windmill mainly contains two kinds of different structures, is respectively Da Lie Φ type structure and Da Lie H type structure.Wherein, the vertical axis windmill of the Da Lie Φ type structure occasion that is mainly used in maximizing; The vertical axis windmill of Da Lie H type structure is mainly used in the occasion of miniaturization.
See also Fig. 1, Fig. 1 is the structural representation of existing Da Lie Φ type and H type vertical axis windmill.As shown in Figure 1, what Da Lie Φ type vertical axis windmill adopted is bent blades, and this bent blades only bears tension force, does not bear the centrifugal force load, and institute is so that the flexural stress minimum.Because warp tension ratio flexural stress that blade material bore is eager to excel, so for identical total intensity, the gulf blade is low weight, and compare with adopting straight-vaned vertical axis windmill, adopt the motion speed of vertical axis windmill of bent blades higher.The vertical axis windmill of Φ type structure is owing to bending blade, and blade is longer, mainly bears tension force for making blade, and the two ends of blade all need be connected in the rotating shaft, so require rotating shaft very long.Because waving of wind wheel is violent, need add drag-line on the top of rotating shaft and connect ground support with fixing wind wheel, the prestressing force of drag-line makes mechanical friction bigger.
As shown in Figure 1, the wind wheel structure of the vertical axis windmill of H type structure is simple, and the rotating shaft ratio is short with the rotating shaft of the vertical axis windmill of Φ type structure, and length of blade is little with respect to the Φ type vertical axis windmill of plunderring the wind area on an equal basis, do not need to add drag-line, start wind speed and require little.But the centrifugal force that the vertical axis windmill of H type structure produces can make blade produce serious flexural stress at its tie point place, and blade is supported on the end points of overhang, swing easily; Overhang also will bear huge moment of flexure.Simultaneously, blade need adopt cross bar or drag-line to support, and these supports will produce aerodynamical resistance, lower efficiency.
The inventor finds that the complex structure of existing vertical axis windmill, poor stability and efficient are low in realizing process of the present invention, be unfavorable for that the maximization of vertical axis windmill is used.
Summary of the invention
Technical problem to be solved by this invention provides a kind of vertical axis windmill, make that simple in structure, the by force stable and efficient of vertical axis windmill is high, thereby improve the utilization factor of wind energy, the wind speed that reduction starts, the maximization application that helps vertical axis windmill.
For achieving the above object, scheme provided by the invention is such:
The invention provides a kind of vertical axis windmill, described vertical axis windmill comprises:
Fixedly connected with an end of a crossbeam (2) in the middle of at least three primary blades (1), each primary blades (1); The other end of crossbeam (2) is fixedlyed connected with rotating shaft (3) top; A crossbeam (2) is fixedlyed connected with the support blade (4) that adopts respectively between the two ends up and down of a primary blades (1), forms the triangle rock-steady structure; Rotating shaft (3) vertically links to each other with pylon (5); A back shaft (6) is stretched out on rotating shaft (3) top; Adopt strut (7) to fixedly connected between described back shaft (5) and each crossbeam (2), form the triangle rock-steady structure; Each primary blades (1) two ends up and down installs winglet (8) additional; The two ends up and down of each primary blades (1) and the joint of support blade (4) stretch out along straight line; Adopt coupling ring (9) fixedly connected between each primary blades (1), stretch out between place and the winglet (8) for each primary blades (1) the joint.
Alternatively, described each primary blades (1) is shaped as prismatic blade, or bent blades, or the multistage blade is spliced.
Alternatively, the angle between the described primary blades (1) is smaller or equal to 120 degree.
Alternatively, being shaped as of described each crossbeam (2) is cylindrical tube pattern or truss pattern.
Alternatively, can form cascade effect between described each primary blades (1) and the support blade (4).
Alternatively, the section of described support blade (4) is an aerofoil profile.
Alternatively, described coupling ring (9) is a circle, or regular polygon.
Compare with existing vertical axis windmill, the simple in structure and force-bearing situation of vertical axis windmill provided by the invention is good, efficient is high, can improve the utilization factor of wind energy, the wind speed that reduction starts, the maximization application that helps vertical axis windmill.
Description of drawings
Fig. 1 is the side view of existing Da Lie Φ type and H type vertical axis windmill structure;
Fig. 2 is the side view of vertical axis windmill structure provided by the invention.
Embodiment
The invention provides a kind of vertical axis windmill, make that simple in structure, the by force stable and efficient of vertical axis windmill is high, thereby improve the utilization factor of wind energy, the wind speed that reduction starts, the maximization application that helps vertical axis windmill.
For the ease of the present invention there being further understanding, vertical axis windmill provided by the invention is described in detail below in conjunction with accompanying drawing.
See also Fig. 2, Fig. 2 is the side view of vertical axis windmill structure provided by the invention.As shown in Figure 2, vertical axis windmill provided by the invention can comprise:
Primary blades (1), crossbeam (2), rotating shaft (3), support blade (4), pylon (5) back shaft (6) strut (7) winglet (8) coupling ring (9); Wherein
The number of primary blades (1) is at least three, and fixedlys connected with an end of a crossbeam (2) in the middle of each primary blades (1); The other end of crossbeam (2) is fixedlyed connected with rotating shaft (3) top; This rotating shaft (3) vertically links to each other with pylon (5), and pylon (5) contacts with ground;
A crossbeam (2) is fixedlyed connected with the support blade (4) that adopts respectively between the two ends up and down of a primary blades (1), form the triangle rock-steady structure, can prevent that vibrational instability from appearring in primary blades (1), and in the stable triangle structure that forms, can form cascade effect between primary blades (1) and the support blade (4), the startup wind speed of wind wheel is reduced, also strong raising pneumatic efficiency; The section of described support blade (4) adopts aerofoil profile, improves pneumatic efficiency when can reduce resistance;
In order to alleviate the moment of flexure that each crossbeam (2) bears, stretch out a back shaft (6) on rotating shaft (3) top; Adopt strut (7) to fixedly connected between this back shaft (6) and each crossbeam (2), form the triangle rock-steady structure equally, improved the intensity and the stability of wind wheel;
For effectively suppress air-flow exhibition to separation, improve the aerodynamic characteristic of blade, improve the efficient of wind energy conversion system, the present invention is installed winglet (8) additional in two ends up and down in each primary blades (1); And the two ends up and down of each primary blades (1) and the joint of support blade (4) stretch out along straight line; Adopt coupling ring (9) fixedly connected between each primary blades (1), stretch out between place and the winglet (8) for each primary blades (1) the joint, can strengthen the stability of blade, reduces the swing of blade.
Need to prove that the angle between the described primary blades (1) is meant when overlooking, by the angle between crossbeam and adjacent two primary blades (1) that rotating shaft (3) is fixedlyed connected, this angle is smaller or equal to 120 degree.
Need to prove that being shaped as of described each crossbeam (2) is cylindrical tube pattern or truss pattern.
Need to prove that described coupling ring (9) can be a circle, perhaps can also be the regular polygon that the direct straight line of blade tip of each primary blades (1) connects and composes.
As can be seen from Figure 2, the blade profile of vertical axis windmill provided by the invention keeps the blade of similar existing Φ type vertical axis windmill.But the blade two ends of vertical axis windmill provided by the invention are not fixedly connected in the rotating shaft (3), and blade is supported on the crossbeam (2), and the similar again H type of profile is so rotating shaft (3) is shorter.Install auxiliary blade additional between each primary blades (1) and the crossbeam (2), described auxiliary blade is support blade (4), can form cascade effect; The two ends up and down of each primary blades (1) also install winglet (8) additional, and the exhibition that suppresses air-flow is to separation; Connect with coupling ring (9) between the primary blades (1), can prevent that blade from rupturing because of centrifugal force is excessive; Rotating shaft (3) links to each other with pylon (5), and this class formation does not need drag-line, and structure is simplified more.
Above-mentioned vertical axis windmill provided by the invention is described in detail, vertical axis windmill provided by the invention has merged the major advantage of H type and Φ type structure vertical axis windmill, make simple in structure and stable strong, efficient is high, thereby can improve wind energy utilization factor, reduce the wind speed that starts, the maximization that helps vertical axis windmill is used.
More than a kind of vertical axis windmill provided by the invention is described in detail.Used specific case herein principle of the present invention and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (7)
1, a kind of vertical axis windmill is characterized in that, comprising:
Fixedly connected with an end of a crossbeam (2) in the middle of at least three primary blades (1), each primary blades (1); The other end of crossbeam (2) is fixedlyed connected with rotating shaft (3) top; A crossbeam (2) is fixedlyed connected with the support blade (4) that adopts respectively between the two ends up and down of a primary blades (1), forms the triangle rock-steady structure; Rotating shaft (3) vertically links to each other with pylon (5); A back shaft (6) is stretched out on rotating shaft (3) top; Adopt strut (7) to fixedly connected between described back shaft (6) and each crossbeam (2), form the triangle rock-steady structure; Each primary blades (1) two ends up and down installs winglet (8) additional; The two ends up and down of each primary blades (1) and the joint of support blade (4) stretch out along straight line; Adopt coupling ring (9) fixedly connected between each primary blades (1), stretch out between place and the winglet (8) for each primary blades (1) the joint.
2, vertical axis windmill according to claim 1 is characterized in that, described each primary blades (1) be shaped as prismatic blade, or bent blades, or the multistage blade is spliced.
3, vertical axis windmill according to claim 1 is characterized in that, described vertical axis windmill comprises:
By the angle between crossbeam and adjacent two primary blades (1) that rotating shaft (3) is fixedlyed connected smaller or equal to 120 degree.
4, vertical axis windmill according to claim 1 is characterized in that, being shaped as of described each crossbeam (2) is cylindrical tube pattern or truss pattern.
5, vertical axis windmill according to claim 1 is characterized in that, can form cascade effect between described each primary blades (1) and the support blade (4).
6, generator according to claim 1 is characterized in that, the section of described support blade (4) is an aerofoil profile.
7, vertical axis windmill according to claim 1 is characterized in that, described coupling ring (9) is a circle, or regular polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101467311A CN101660488B (en) | 2008-08-27 | 2008-08-27 | Vertical axis wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101467311A CN101660488B (en) | 2008-08-27 | 2008-08-27 | Vertical axis wind turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101660488A true CN101660488A (en) | 2010-03-03 |
| CN101660488B CN101660488B (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101467311A Active CN101660488B (en) | 2008-08-27 | 2008-08-27 | Vertical axis wind turbine |
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| CN (1) | CN101660488B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050554A (en) * | 2015-08-26 | 2016-10-26 | 陈忠维 | Vertical axis wind turbine |
| CN108050001A (en) * | 2017-11-08 | 2018-05-18 | 西安理工大学 | A kind of bionic blade of the vertical-axis tide energy hydraulic turbine |
| CN110513246A (en) * | 2019-09-29 | 2019-11-29 | 南京航空航天大学 | A kind of multi-layer intercrossed formula φ type wind energy conversion system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1183134A (en) * | 1995-03-29 | 1998-05-27 | 欧文·G·威廉姆森 | Vertical axis wind turbine |
| GB2415750B (en) * | 2003-07-24 | 2006-07-26 | Xc02 Ltd | Vertical-axis wind turbine |
| CN1683784A (en) * | 2004-04-13 | 2005-10-19 | 王和平 | Combined vertical shaft wind power generator |
| CN100334346C (en) * | 2005-06-10 | 2007-08-29 | 郑衍杲 | Automatic control wind sail type swing wing vertical shaft wind motor |
| CN100478563C (en) * | 2006-02-07 | 2009-04-15 | 青岛魅力欧亚高科技有限公司 | Vertical shaft C-shaped blade wind power generation device |
| CN201269170Y (en) * | 2008-08-27 | 2009-07-08 | 深圳市风发科技发展有限公司 | Vertical shaft windmill |
-
2008
- 2008-08-27 CN CN2008101467311A patent/CN101660488B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050554A (en) * | 2015-08-26 | 2016-10-26 | 陈忠维 | Vertical axis wind turbine |
| CN106050554B (en) * | 2015-08-26 | 2019-06-14 | 陈忠维 | A kind of vertical axis windmill |
| CN108050001A (en) * | 2017-11-08 | 2018-05-18 | 西安理工大学 | A kind of bionic blade of the vertical-axis tide energy hydraulic turbine |
| CN108050001B (en) * | 2017-11-08 | 2019-09-27 | 西安理工大学 | A kind of bionic blade of the vertical-axis tide energy hydraulic turbine |
| CN110513246A (en) * | 2019-09-29 | 2019-11-29 | 南京航空航天大学 | A kind of multi-layer intercrossed formula φ type wind energy conversion system |
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| Publication number | Publication date |
|---|---|
| CN101660488B (en) | 2012-05-23 |
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