CN103047080A - Triangular flexible-wing vertical shaft offset distance type wind turbine - Google Patents
Triangular flexible-wing vertical shaft offset distance type wind turbine Download PDFInfo
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- CN103047080A CN103047080A CN2013100210698A CN201310021069A CN103047080A CN 103047080 A CN103047080 A CN 103047080A CN 2013100210698 A CN2013100210698 A CN 2013100210698A CN 201310021069 A CN201310021069 A CN 201310021069A CN 103047080 A CN103047080 A CN 103047080A
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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 triangular flexible-wing vertical shaft offset distance type wind turbine. The triangular flexible-wing vertical shaft offset distance type wind turbine comprises a vertical shaft, cross arms, light rectangular wind-permeable meshes and light flexible blades. The vertical shaft is vertically installed a tower frame and can freely rotate, 3-6 equilong cross arms are horizontally and symmetrically installed on the vertical shaft in a radial mode, one light rectangular wind-permeable mesh is vertically installed under the outer end of each cross arm, and one light flexible blade is installed on the same side of each light rectangular wind-permeable mesh. The light flexible blades naturally droops in calm and are made of light materials, breeze can enable the light flexible blades to wave following wind without resistance, the wind-against light flexible blades are blocked on the light rectangular wind-permeable meshes so as to obtain large wind capture faces, the light rectangular wind-permeable meshes are subjected to wind pressure and accordingly drives the vertical shaft to rotate. The triangular flexible-wing vertical shaft offset distance type wind turbine is small in starting wind speed, large in moment, low in cost, quick in state change transition and wide in practical applicability.
Description
Technical field
The present invention relates to a kind of offset distance formula vertical axis windmill, relate in particular to the soft wing vertical shaft of a kind of triangle offset distance formula wind energy conversion system.
Background technique
Nowadays, the non-renewable energy resources such as oil, coal, rock gas all are faced with the severe contamination of reserves exhaustion, rise in price even earth environment etc.The nuclear fission generating is dangerous high, nuclear waste befouling environment, difficult treatment; Utilize the nuclear fusion energy generating also infeasible.And solar energy and wind energy are renewable energy sourcess, and environment is not polluted.Therefore, the clean reproducible energy of each national capital Devoting Major Efforts To Developing take wind energy and solar energy as representative.
In current field of wind energy utilization, the wind-driven generator of existing most of large electric motor powers mostly be in treat, outage state, the blower fan utilization ratio is extremely low.Under some specific condition, in addition in order to make at any time standby of blower fan generating, also must be to blower fan input control power supply, this makes blower fan the negative power output state occur, has greatly reduced wind energy utilization.Be subject to the impact of wind turbines rotor structure, the following problem that existing wind-driven generator mainly exists: 1. it is all too high to start wind speed and rated wind speed, and situation seriously loses contact with reality.Need development be fit to the wind energy conversion systems that use in most of areas, its startup wind speed and rated wind speed are all very low; 2. the blade of existing wind wheel is carefully grown, and solidity is extremely low, and major part leaks from the space between the blade, and wind energy is not fully utilized; 3. the fan blade Airfoil Design is unreasonable.Current the most widely used wind wheel blade is according to the design of the rotor structure of helicopter.The structural design of the rotor of helicopter is in order to utilize air-flow to improve its lift, but wind wheel blade need to overcome the effect of this power, is opposite process; 4. most wind wheel blade torsion angles are fixed, and can not adapt to different wind speed.But in actual applications, the wind speed size is at random.Therefore wind wheel is generally operational in non-design work state, and overall efficiency is low, difficulty in starting.
Existing offset distance formula blade vertical shaft wind-driven generator, blade profile is long-pending to be increased, and has improved the wind energy power of catching, and reduces and starts wind speed.Adjust the blade lean angle and can regulate the blower fan rotational speed.The long-pending increase of blade profile can significantly reduce the length of blade, so that the wind wheel blade gross weight significantly reduces, and can utilize substantially wind energy power.Floor space is few, and the omnirange acting starts fast.
Existing offset distance formula blade vertical shaft wind-driven generator has three kinds of schemes: 1. at vertical shaft blade rack is installed, blade is installed in the blade rack two ends with the offset distance form, and blade is by Electric Machine Control.In the time of with the wind, control makes the vertical wind-engaging of blade, wind energy is converted into the rotating mechanical energy of impeller.And when contrary wind, control makes blade be horizontal position, and wind is not produced any resistance.2. at vertical shaft blade rack is installed, blade is installed in the blade rack two ends with the offset distance form.90 degree one direction limit stoper are installed, so that blade one direction offset distance is no more than 90 degree on the blade rack.When any direction be the wind comes from, on one side blade keeps original position owing to the one direction position-limiting action, the another side blade is identical with wind direction to be rotated.3. at vertical shaft blade rack is installed, blade is installed blade at the blade rack two ends with 90 degree angles with the offset distance form.At blade rack the limit stoper that the full swing angle is 45 degree is installed.Any direction the wind comes from make blade rack one end blade oscillating to horizontal position; To vertical position, wind acts on the blade of vertical position and makes the rotation of blade impeller the blade of the blade rack the other end at wind-force effect lower swing; When the blade oscillating of vertical position arrived downwind position, a blade of another blade rack to vertical position, continued the impeller rotation at wind-force effect lower swing.
But the leaf position adjustment in the first scheme needs the motor driving rotation, need to expend electric power, but also increase the complexity of control system; Blade in the first scheme when rotating speed because centrifugal and can not reliable reset.More than last kind scheme, although solidity is more many greatly than conventional wind wheel, it is very capable to catch wind, because the blade deadweight, so that blade needs certain blast by level to vertical variation, therefore particularly in the very low situation of wind speed, starts relatively more difficult.
Therefore, be necessary that development and Design goes out the wind energy conversion system of easier startup in the very low situation of wind speed.
Summary of the invention
The startup wind speed that has blower fan now is high, rotor solidity is low in order to overcome, power coefficient is little, wind wheel fan blade aerofoil profile and torsion angle are fixing and can not adapt to different wind speed, drive that the rotation needs expend electric power, leaf position adjustment needs expend the rotation of electric drive motor, system complex, can not reliable reset etc. shortcoming, the invention provides the soft wing vertical shaft of a kind of triangle offset distance formula wind energy conversion system.
In order to solve the problems of the technologies described above, the present invention has adopted following technological scheme:
The soft wing vertical shaft of triangle offset distance formula wind energy conversion system comprises vertical shaft, cross-arm, the ventilative net of lightweight rectangle and the soft blade of lightweight;
Described vertical shaft vertically is installed on the pylon, can rotate freely;
The isometric cross-arm of 3-6 root is horizontal radiation shape symmetry and is installed on the vertical shaft; The ventilative net of one lightweight rectangle vertically is installed below the outer end of every cross-arm;
A slice or the soft blade of multi-disc lightweight are installed in same side at the ventilative net of each lightweight rectangle, the rectangular triangle of the soft blade of lightweight, it is ventilative online that the hypotenuse of the soft blade of lightweight of right-angled triangle is fixed in the lightweight rectangle along the ventilative diagonal angle line of netting of lightweight rectangle, and two right angle sides of the soft blade of lightweight are fixing.
As a preferred embodiment of the present invention, the skeleton of the ventilative net of described lightweight rectangle adopts Stainless Steel Tube or glass fibre reinforced plastics, adopts Stainless Steel Wire or glass yarn to make net in the skeleton.
As another kind of preferred version of the present invention, the soft blade of described lightweight adopts anti-aging cloth.
The invention has the beneficial effects as follows: 1. the wind wheel starting wind velocity is little: owing to adopted the lightweight design, very faint wind just can make with the wind, and the soft blade of lightweight lets it flow and non-resistance, and the soft blade of lightweight blocks on the net ventilative at the lightweight rectangle and wind-catching surface that acquisition is larger against the wind, the ventilative net of lightweight rectangle is subject to blast, thereby drives vertical axis revolving, so wind energy conversion system breeze wind ability is strong, it is little to start wind speed, moment is large, and it is wide to be fit to the area, and the generator operation time scale is high; 2. simplicity of design, cost is low, and the change of state transition is rapid, and practicability is more extensive.
Description of drawings
Fig. 1 is the perspective view of the soft wing vertical shaft of triangle offset distance formula wind energy conversion system.
In the accompanying drawing: 1-vertical shaft; The soft blade of 2-lightweight; 3-lightweight rectangle net that lets in air; 4-cross-arm.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the soft wing vertical shaft of triangle offset distance formula wind energy conversion system comprises vertical shaft 1, cross-arm 4, the ventilative net 3 of lightweight rectangle and the soft blade 2 of lightweight.Vertical shaft 1 vertically is installed on the pylon, can rotate freely.Cross-arm 4 is isometric 3-6 root, and is horizontal radiation shape symmetry and is installed on the vertical shaft 1, in the present embodiment, has adopted 4 cross-arms.Below the outer end of every cross-arm 4, vertically fixedly mount the ventilative net 3 of a lightweight rectangle.
Install in a slice or the soft blade 2(of the multi-disc lightweight accompanying drawing in the same side of the ventilative net 3 of each lightweight rectangle, at the ventilative net 3 of each lightweight rectangle the soft blade 2 of a slice lightweight is installed), the soft blade 2 rectangular triangles of each lightweight, the hypotenuse of the soft blade 2 of the lightweight of right-angled triangle is fixed on the ventilative net 3 of lightweight rectangle along the diagonal angle line of the ventilative net 3 of lightweight rectangle, the hypotenuse bottom of the soft blade 2 of lightweight is positioned at the outer side bottom of the ventilative net 3 of lightweight rectangle, and two right angle sides of the soft blade 2 of lightweight are unfixing.When calm, the soft blade 2 of lightweight naturally droops, and a right angle side of the soft blade 2 of lightweight is horizontal, and another right angle side is in vertical position.Very faint wind just can make with the wind that the soft blade 2 of lightweight lets it flow and non-resistance, and the soft blade 2 of lightweight blocks on the ventilative net 3 of lightweight rectangle and obtains larger wind-catching surface against the wind, and the ventilative net 3 of lightweight rectangle is subject to blast, thereby drives vertical shaft 1 rotation.Why the soft blade 2 of lightweight is designed to naturally droop when calm, right angle side in two right angle sides is horizontal, another right angle side is in vertical position, to guarantee that the soft blade 2 of lightweight is under the constraint of hypotenuse, the soft blade 2 of lightweight naturally droops expansion when just starting, and normal in service when changing against the wind with the wind state into the soft blade 2 of lightweight can also launch along wind direction, thereby guarantee that further the wind-receiving face of the soft blade 2 of lightweight with the wind the time is maximum.
The skeleton of the ventilative net 3 of lightweight rectangle can adopt Stainless Steel Tube or glass fibre reinforced plastics, adopts Stainless Steel Wire or glass yarn to make net in the skeleton; The soft blade 2 of lightweight can adopt anti-aging cloth.Owing to adopt lightweight material, very faint wind just can make with the wind the soft blade of lightweight let it flow and to the wind non-resistance, and the soft blade of lightweight is in vertical position and obtains larger wind-catching surface against the wind, and it starts, and wind speed is little, moment is large; And cost is extremely low, and the change of state transition is rapid, and practicability is more extensive.
Explanation is at last, above embodiment is only unrestricted in order to technological scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technological scheme of the present invention, and not breaking away from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (3)
1. the soft wing vertical shaft of triangle offset distance formula wind energy conversion system is characterized in that: comprise vertical shaft (1), cross-arm (4), the ventilative net (3) of lightweight rectangle and the soft blade of lightweight (2);
Described vertical shaft (1) vertically is installed on the pylon, can rotate freely;
The isometric cross-arm (4) of 3-6 root is horizontal radiation shape symmetry and is installed on the vertical shaft (1); In the below, outer end of every cross-arm (4) the ventilative net (3) of a lightweight rectangle is installed vertically;
A slice or the soft blade of multi-disc lightweight (2) are installed in same side at the ventilative net (3) of each lightweight rectangle, the soft blade of each lightweight (2) is triangle at right angles, the hypotenuse of the soft blade of the lightweight of right-angled triangle (2) is fixed on the ventilative net (3) of lightweight rectangle along the diagonal angle line of the ventilative net (3) of lightweight rectangle, and two right angle sides of the soft blade of lightweight (2) are unfixing.
2. the soft wing vertical shaft of triangle according to claim 1 offset distance formula wind energy conversion system is characterized in that: skeleton employing Stainless Steel Tube or the glass fibre reinforced plastics of the ventilative net (3) of described lightweight rectangle, employing Stainless Steel Wire or glass yarn making net in the skeleton.
3. the soft wing vertical shaft of triangle according to claim 1 offset distance formula wind energy conversion system, it is characterized in that: the soft blade of described lightweight (2) adopts anti-aging cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310021069.8A CN103047080B (en) | 2013-01-21 | 2013-01-21 | Triangular flexible-wing vertical shaft offset distance type wind turbine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310021069.8A CN103047080B (en) | 2013-01-21 | 2013-01-21 | Triangular flexible-wing vertical shaft offset distance type wind turbine |
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| Publication Number | Publication Date |
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| CN103047080A true CN103047080A (en) | 2013-04-17 |
| CN103047080B CN103047080B (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310021069.8A Expired - Fee Related CN103047080B (en) | 2013-01-21 | 2013-01-21 | Triangular flexible-wing vertical shaft offset distance type wind turbine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2619271A (en) * | 2022-05-23 | 2023-12-06 | Chen Hsin Mei | Vortex dynamic power generation structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201513285U (en) * | 2009-09-16 | 2010-06-23 | 刘忠 | Upright windmill |
| CN203022969U (en) * | 2013-01-21 | 2013-06-26 | 重庆理工大学 | Flexible wing type set-over wind turbine with vertical shaft |
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2013
- 2013-01-21 CN CN201310021069.8A patent/CN103047080B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201513285U (en) * | 2009-09-16 | 2010-06-23 | 刘忠 | Upright windmill |
| CN203022969U (en) * | 2013-01-21 | 2013-06-26 | 重庆理工大学 | Flexible wing type set-over wind turbine with vertical shaft |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2619271A (en) * | 2022-05-23 | 2023-12-06 | Chen Hsin Mei | Vortex dynamic power generation structure |
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| CN103047080B (en) | 2015-07-22 |
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