CN102644558A - Skeleton-type helical wind energy blade and wind energy power generating device - Google Patents
Skeleton-type helical wind energy blade and wind energy power generating device Download PDFInfo
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- CN102644558A CN102644558A CN2012101393189A CN201210139318A CN102644558A CN 102644558 A CN102644558 A CN 102644558A CN 2012101393189 A CN2012101393189 A CN 2012101393189A CN 201210139318 A CN201210139318 A CN 201210139318A CN 102644558 A CN102644558 A CN 102644558A
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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
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- Y02E10/72—Wind turbines with rotation axis in wind direction
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a skeleton-type helical wind energy blade, which comprises a first support, a second support and a flexible sheet, wherein the first support and the second support form a double-helical structure; and one side of the flexible sheet is connected to the first support, the other side of the flexible sheet is connected to the second support, and a helical wind surface is formed along the trend of the first support and the second support. The helical wind energy blade has a simple structure and light weight, the low-wind starting performance can be remarkably improved, and easiness in transportation, installation and maintenance can be achieved. The invention also discloses a wind energy power generating device providing with the skeleton-type helical wind energy blade.
Description
Technical field
The present invention relates to the spiral wind power blade in wind energy power technology field, particularly wind electricity generating system.The invention still further relates to the wind electricity generating system that is provided with said spiral wind power blade.
Background technique
Along with China's rapid economy development, power requirement increases substantially, because the contradiction between the supply and demand, many areas are in peak of power consumption even have to take margining electric method, are the fundamental ways that solves this contradiction and increase the electric energy supply.
In China, electric energy is mainly derived from thermoelectricity, water power and wind-powered electricity generation, and some is from nuclear power in addition, and wherein wind-powered electricity generation more and more receives people's attention with its environmental protection, with low cost and do not receive advantages such as region restriction.
At present, wind-driven generator adopts traditional windmill structure mostly, adopts the radiation blade, promptly extends some curved surface buckets by rotating center.This wind-driven generator takes up space greatly, and wind loading rating is poor, and the strength of materials is had higher requirements, and from great, is difficult to high speed rotating in addition, and wind energy efficiency is low; Also have fraction to adopt vertical axis aerogenerator, vertical axis aerogenerator generally is divided into two types: S type wind wheel and H type wind wheel, and the low wind speed startability of S type wind wheel is good, but wind energy efficiency is low; H type wind wheel wind energy efficiency is high, but is difficult for starting during low wind speed.
The spirality wind electricity generating system has appearred in the deficiency to windmill type wind-driven generator and vertical axis aerogenerator existence in the existing technology scheme.
Like publication number is the application for a patent for invention Publication Specification of CN101526068A; A kind of combined screw impeller wind power generation system is disclosed; Its helical runner is to be assembled vertically by some impeller vertical members; Simultaneously, each impeller vertical member is again radially to be spliced and combined along helical runner by some impeller plane members to form.
And for example notice of authorization number is the disclosed spiral straight-shaft type of the utility model patent wind generating unit of CN201474868U; One side of its rotating shaft links to each other with the axle of generator, and a side of plural pieces helical blade is fixed on the surface of rotating shaft, and blade along rotating shaft in the shape of a spiral around shape; The opposite side of blade forms the windbreak that is used to keep out the wind; When blade was accepted wind-force, windbreak can bear certain wind-force, and minimizing wind-force spills from the periphery of blade.
Above-mentioned spirality wind electricity generating system adopts spiral vane to replace original fan blade, lets wind cross blade and produces both sides air pressure, thereby blade is rotated around central shaft; The spiral vane wind energy efficiency is higher relatively; Blade can adopt high performance composites or plastics or light-weight metal etc., alleviates blower fan weight, and low wind speed startability increases; This kind wind-driven generator uses the region restriction less, is easy to promote.But not enough below existing:
One of which, though the spirality wind power blade can be selected lightweight material for use, the raising of low wind speed startability is still limited, and further improved space is arranged.
Its two, most of helical blades are composite structure, not only processing cost is high, and the transportation, installation, maintenance difficulty.
Its three owing to need rotating shaft be set, cause its weight bigger, and complex structure in the center of spirality wind power blade.
Its four, the blade edge windbreak needs to be provided with separately, makes structure complicated.
Therefore, how further simplifying the structure of spirality wind power blade, improving its low wind speed startability, and overcome the deficiency of existence, is the present technical issues that need to address of those skilled in the art.
Summary of the invention
First purpose of the present invention provides a kind of matrix type spiral wind power blade.This spiral wind energy blade structure is simple, lighter weight, can significantly improve low wind speed startability, and be easy to transportation, installation, maintenance.
Second purpose of the present invention provides a kind of wind electricity generating system that is provided with said spiral wind power blade.
In order to realize above-mentioned first purpose, the present invention provides a kind of matrix type spiral wind power blade, comprises first support, second support and flexible sheet material, and said first support and second support form double-spiral structure; One side of said flexible sheet material is connected in said first support, and opposite side is connected in said second support, and forms the spirality wind-receiving face along the tendency of said first support and second support.
Preferably, further comprise auxiliary stand, said auxiliary stand supports the curved type of said spirality wind-receiving face.
Preferably, said flexible sheet material comprises some monolithics, and said monolithic is connected along the spirality tendency of first support and second support successively.
Preferably, the outside of said first support and second support is provided with axial arranged power transmission rope.
Preferably, said first support and second support be can axial stretching the lightweight elastic support.
Preferably, said first support and second support form windbreak in said spirality wind-receiving face both sides.
Preferably, said spirality wind-receiving face is cylindrical screw shape or trochoid spiral shape.
Preferably, said spirality wind-receiving face is pitch spirality or variable-pitch auger shape.
Preferably, the material of said flexible sheet material is cloth or coating materials; The material of said first support and second support is steel wire or graphite fiber.
For realizing above-mentioned second purpose; The present invention provides a kind of wind electricity generating system; Comprise generator and the spiral wind power blade that is in transmission connection with said generator; Said spiral wind power blade is above-mentioned each described matrix type spiral wind power blade, and an end of said first support and second support directly or indirectly is connected with said generator.
Matrix type spiral wind power blade provided by the present invention; Mainly constitute by two supports and middle flexible sheet material; Its medium-height trestle is the skeleton of whole blade; Form the edge contour of blade, the both sides of flexible sheet material are connected with two supports respectively, and form the spirality wind-receiving face along the tendency of two supports.The support of this wind power blade can adopt light elastic material, and the quality of flexible sheet material is also lighter relatively, so the weight of whole blade significantly alleviates, and can significantly improve low wind speed startability, and wind energy efficiency is higher relatively; Because support one end can directly or indirectly be connected with generator, flexible sheet material is the integrated design, and therefore can save intermediate rotary shaft, further simplifies the structure.In addition, it is simple in structure, be easy to processing, and not only processing cost is lower, and is easy to transportation, installation and maintenance.
In a kind of embodiment, said first support and second support be can axial stretching the lightweight elastic support.Because support has adopted light elastic material, therefore realized the scalable design of spiral wind power blade, after the moulding of spiral wind power blade time processing; Can apply suitable pressure at two ends; The spiral wind power blade is compressed, thereby reduces volume, convenient installation, transportation and use.
In another kind of embodiment; Said first support and second support form windbreak in said spirality wind-receiving face both sides, two side supports can also form windbreak except that using as support; When blade bore wind-force, windbreak can reduce wind-force and spill from the periphery of blade.
Wind electricity generating system provided by the present invention is provided with above-mentioned matrix type spiral wind power blade, because above-mentioned matrix type spiral wind power blade has above-mentioned technique effect, the wind electricity generating system that is provided with this matrix type spiral wind power blade also should possess the corresponding techniques effect.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of matrix type spiral wind power blade provided by the present invention;
Structural representation when Fig. 2 is in compressive state for matrix type spiral wind power blade shown in Figure 1;
Structural representation when Fig. 3 is provided with the power transmission rope for matrix type spiral wind power blade shown in Figure 1;
Fig. 4 is radially cut apart the unfolded drawing of back gained monolithic for flexible sheet material shown in Fig. 1;
Fig. 5 is the arrangement schematic representation of monolithic shown in Figure 4 on the wide cloth of 1m;
The unfolded drawing of helical pitch when Fig. 6 directly launches according to the helicoid expansion formula for flexible sheet material shown in Fig. 1.
Among the figure:
1. first support, 2. second supports, 3. flexible sheet materials, 4. power transmissions, 5. monolithics, 6. base materials of restricting
Embodiment
Core of the present invention provides a kind of matrix type spiral wind power blade.This spiral wind energy blade structure is simple, lighter weight, can significantly improve low wind speed startability, and be easy to transportation, installation, maintenance.
Another core of the present invention provides a kind of wind electricity generating system that is provided with said spiral wind power blade.
In order to make those skilled in the art person understand the present invention program better, the present invention is done further detailed description below in conjunction with accompanying drawing and embodiment.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of embodiment of matrix type spiral wind power blade provided by the present invention.
In a kind of embodiment, matrix type spiral wind power blade provided by the invention mainly is made up of first support 1, second support 2 and middle flexible sheet material 3.
First support 1 and second support 2 form double-spiral structure, and a side of flexible sheet material 3 is connected in first support 1, and opposite side is connected in second support 2, and forms the spirality wind-receiving face along the tendency of first support 1 and second support 2.
First support 1 and second support 2 be can axial stretching the lightweight elastic support; Its material can adopt steel wire or graphite fiber etc.; Flexible sheet material 3 adopts the material that quality are light and have certain toughness and intensity, like plastic film, synthesize coating materials such as film, or cloth such as parachute fabric.
In addition, the shape of whole spiral wind power blade also is not limited to cylindrical screw shape, can also be trochoid spiral shape, according to the difference of pitch, can also be uniform pitch spirality or variable-pitch auger shape.
The spirality wind-receiving face that is formed by flexible sheet material 3 not only can be straight line type, can also form various curveds by auxiliary stand support helix shape wind-receiving face through the auxiliary stand (not shown) is set, for example common S type in the vertical axis aerogenerator.
Particularly, auxiliary stand can be between first support and second support, and the one of which end is connected in first support, and the other end is connected in second support.So, auxiliary stand not only can be used to form the curved wind-receiving face, and can improve the structural strength of spiral wind power blade.Certainly, auxiliary stand directly is attached to flexible sheet material and can realizes the object of the invention equally.
The support of above-mentioned wind power blade adopts light elastic material, and the quality of flexible sheet material is also lighter relatively, so the weight of whole blade significantly alleviates, and can significantly improve low wind speed startability, and wind energy efficiency is higher relatively; Because support one end can directly or indirectly be connected with generator, flexible sheet material is the integrated design, and therefore can save intermediate rotary shaft, further simplifies the structure.In addition, it is simple in structure, be easy to processing, and not only processing cost is lower, and is easy to transportation, installation and maintenance.
It is understandable that this wind power blade also can be used for the current generating, promptly utilize the rotation of water current driven wind power blade, and then drive generator for electricity generation,, just no longer detail here because both electricity generating principles are basic identical.
Please refer to Fig. 2, the structural representation when Fig. 2 is in compressive state for matrix type spiral wind power blade shown in Figure 1.
Because support has adopted light elastic material, therefore realized the scalable design of spiral wind power blade, after the moulding of spiral wind power blade time processing; Can apply suitable pressure at two ends; The spiral wind power blade is compressed, thereby reduces volume, convenient installation, transportation and use.
If the diameter of first support 1 and second support 2 is greater than the thickness of flexible sheet material, then both can also form windbreak in spirality wind-receiving face both sides except that using as support, thereby when blade bore wind-force, minimizing wind-force spilt from the periphery of blade.
Under this teachings, the shape of cross section of first support 1 and second support 2 can be not limited to circle, and first support 1 and second support 2 through design varying cross-section shape can obtain the better windbreak of using effect.
Please refer to Fig. 3, the structural representation when Fig. 3 is provided with the power transmission rope for matrix type spiral wind power blade shown in Figure 1.
Further; The outside of first support 1 and second support 2 is provided with axial arranged power transmission rope 4, and power transmission rope 4 is interval, evenly distribution in a circumferential direction, and its concrete quantity is decided according to the parameters and the actual demand of spiral wind power blade; Power transmission rope 4 can be transferred to wind energy the terrestrial power generation mechanism of wind electricity generating system on the one hand; Generate electricity to drive terrestrial power generation mechanism, on the other hand, can play the effect of control spiral wind energy blade pitch; Connection length through regulating power transmission rope 4 can the adjusting color screw wind power blade pitch and spiral angle, thereby satisfy the needs of different operating modes.
When the spiral wind power blade is longer; Consider that from the angle of processing flexible sheet material segmentation manufacturing is necessary, specifically can adopt two kinds of methods to realize its segmentation manufacturing; Method one is for radially cutting apart flexible sheet material 3, and method two directly launches flexible sheet material 3 for utilizing the helicoid expansion formula.
Please refer to Fig. 4, Fig. 5, Fig. 4 is radially cut apart the unfolded drawing of back gained monolithic for flexible sheet material shown in Fig. 1; Fig. 5 is the arrangement schematic representation of monolithic shown in Figure 4 on the wide cloth of 1m.
After flexible sheet material 3 radially cut apart; Can obtain the shape of one of them monolithic 5; According to the shape of the monolithic that obtains 5 on the wide base material 6 of 1m, arrange, cutting; Can obtain the identical monolithic of some shapes 5, these monolithics 5 are sewed together along the spirality tendency of first supports 1 and second support 2 successively can obtain required flexible sheet material 3.
Please refer to Fig. 6, the unfolded drawing of helical pitch when Fig. 6 directly launches according to the helicoid expansion formula for flexible sheet material shown in Fig. 1.
When flexible sheet material 3 was directly launched according to the helicoid expansion formula, the monolithic 5 of an one of which helical pitch was ring substantially, compared with the method for radially cutting apart, and the monolithic quantity of this method is less relatively, can reduce seam quantity like this, improved structural strength.
Certainly, this paper does not do concrete qualification to the making method of flexible sheet material, can have multiplely, and above-mentioned two kinds only is exemplary illustration, and every making method that can form the spirality wind-receiving face all drops within protection scope of the present invention.
Above-mentioned matrix type spiral wind power blade only is a kind of preferred version of the present invention, specifically is not limited thereto, and can make pointed adjustment according to actual needs on this basis, thereby obtain different embodiment.Because mode in the cards is more, just illustrate no longer one by one here.
Except above-mentioned matrix type spiral wind power blade; The present invention also provides a kind of wind electricity generating system, comprises generator and the spiral wind power blade that is in transmission connection with said generator, and said spiral wind power blade is a matrix type spiral wind power blade mentioned above; One end of said first support and second support directly or indirectly is connected with said generator; Realize the conversion of wind energy to electric energy, all the other structures please refer to existing technology, and this paper repeats no more.
More than matrix type spiral wind power blade provided by the present invention and wind electricity generating system have been carried out detailed introduction.Used concrete example among this paper principle of the present invention and mode of execution are set forth, above embodiment's explanation just is used for helping to understand core concept of the present invention.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. a matrix type spiral wind power blade is characterized in that, comprises first support, second support and flexible sheet material, and said first support and second support form double-spiral structure; One side of said flexible sheet material is connected in said first support, and opposite side is connected in said second support, and forms the spirality wind-receiving face along the tendency of said first support and second support.
2. matrix type spiral wind power blade according to claim 1 is characterized in that, further comprises auxiliary stand, and said auxiliary stand supports the curved type of said spirality wind-receiving face.
3. matrix type spiral wind power blade according to claim 1 is characterized in that said flexible sheet material comprises some monolithics, and said monolithic is connected along the spirality tendency of first support and second support successively.
4. matrix type spiral wind power blade according to claim 1 is characterized in that, the outside of said first support and second support is provided with axial arranged power transmission rope.
5. matrix type spiral wind power blade according to claim 1 is characterized in that, said first support and second support be can axial stretching the lightweight elastic support.
6. according to each described matrix type spiral wind power blade of claim 1 to 5, it is characterized in that said first support and second support form windbreak in said spirality wind-receiving face both sides.
7. according to each described matrix type spiral wind power blade of claim 1 to 5, it is characterized in that said spirality wind-receiving face is cylindrical screw shape or trochoid spiral shape.
8. according to each described matrix type spiral wind power blade of claim 1 to 5, it is characterized in that said spirality wind-receiving face is pitch spirality or variable-pitch auger shape.
9. according to each described matrix type spiral wind power blade of claim 1 to 5, it is characterized in that the material of said flexible sheet material is cloth or coating materials; The material of said first support and second support is steel wire or graphite fiber.
10. wind electricity generating system; Comprise generator and the spiral wind power blade that is in transmission connection with said generator; It is characterized in that; Said spiral wind power blade is aforesaid right requirement 1 to 9 each described matrix type spiral wind power blade, and an end of said first support and second support directly or indirectly is connected with said generator.
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| CN201210139318.9A CN102644558B (en) | 2012-05-07 | 2012-05-07 | Skeleton-type helical wind energy blade and wind energy power generating device |
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| CN201210139318.9A CN102644558B (en) | 2012-05-07 | 2012-05-07 | Skeleton-type helical wind energy blade and wind energy power generating device |
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| CN102644558A true CN102644558A (en) | 2012-08-22 |
| CN102644558B CN102644558B (en) | 2015-05-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704111A (en) * | 2016-12-12 | 2017-05-24 | 天津明阳风能叶片技术有限公司 | Novel screw type wind energy blade device equipment |
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| CN2917763Y (en) * | 2006-07-25 | 2007-07-04 | 马春强 | Double helix flow mixing device |
| CN201474868U (en) * | 2009-08-24 | 2010-05-19 | 叶诚丰 | Spiral direct-axis wind power generation device |
| CN101988470A (en) * | 2009-08-05 | 2011-03-23 | 中国中煤能源集团有限公司 | Floating wind energy receiving device |
| US20110081243A1 (en) * | 2009-10-02 | 2011-04-07 | Sullivan John T | Helical airfoil wind turbines |
| CN102182640A (en) * | 2011-05-20 | 2011-09-14 | 深圳市正耀科技有限公司 | Method for manufacturing spiral swivel vertical shaft wind power generator device |
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2012
- 2012-05-07 CN CN201210139318.9A patent/CN102644558B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2917763Y (en) * | 2006-07-25 | 2007-07-04 | 马春强 | Double helix flow mixing device |
| CN101988470A (en) * | 2009-08-05 | 2011-03-23 | 中国中煤能源集团有限公司 | Floating wind energy receiving device |
| CN201474868U (en) * | 2009-08-24 | 2010-05-19 | 叶诚丰 | Spiral direct-axis wind power generation device |
| US20110081243A1 (en) * | 2009-10-02 | 2011-04-07 | Sullivan John T | Helical airfoil wind turbines |
| CN102182640A (en) * | 2011-05-20 | 2011-09-14 | 深圳市正耀科技有限公司 | Method for manufacturing spiral swivel vertical shaft wind power generator device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704111A (en) * | 2016-12-12 | 2017-05-24 | 天津明阳风能叶片技术有限公司 | Novel screw type wind energy blade device equipment |
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