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Publication numberCN102918263 A
Publication typeApplication
Application numberCN 201180026692
PCT numberPCT/GR2011/000033
Publication date6 Feb 2013
Filing date10 Aug 2011
Priority date1 Sep 2010
Also published asWO2012028890A1
Publication number201180026692.1, CN 102918263 A, CN 102918263A, CN 201180026692, CN-A-102918263, CN102918263 A, CN102918263A, CN201180026692, CN201180026692.1, PCT/2011/33, PCT/GR/11/000033, PCT/GR/11/00033, PCT/GR/2011/000033, PCT/GR/2011/00033, PCT/GR11/000033, PCT/GR11/00033, PCT/GR11000033, PCT/GR1100033, PCT/GR2011/000033, PCT/GR2011/00033, PCT/GR2011000033, PCT/GR201100033
Inventors塞奥佐罗斯图拉斯, 埃曼努埃尔米哈利斯
Applicant塞奥佐罗斯图拉斯, 埃曼努埃尔米哈利斯
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
Wind turbine blades with dimples
CN 102918263 A
Wind turbine blades (2) which are characterised from being equipped with dimples (3) of hemispherical or polygonal shape as many as possible of them and as much as closer one another arranged in rows and alternately between them alongside blade's whole surface. Applying this dimple arrangement technique on blade's surface, a drastic management of specific aerodynamic phenomena contributing to the most possible wind laminar flow and steady blade rotation maximizing quality, reliability, economically and noiseless wind turbine operation which because of diffusion at a significant degree of the two side pressure difference, a speedier rotation is succeeded (more rounds per minute) finally maximizing electric energy production.
Claims(4)  translated from Chinese
1. 一种风力涡轮机叶片,在风力涡轮机塔(4)上具有转子(I),所述叶片(2)设置有凹槽(3),其特征在于,所述凹槽(3)仅为半球形或多边形(例如六边形)且布置在所述叶片的表面上,所述凹槽(3)尽可能多且尽可能彼此靠近地布置成排且相互交替,使得所述凹槽(3)彼此相切,在所述叶片的正反两面完全地覆盖所述叶片的表面。 A wind turbine blade, the wind turbine tower (4) having a rotor (I), the blade (2) is provided with a groove (3), characterized in that said groove (3) only the hemisphere or polygonal (e.g., hexagonal) and arranged on the blade surface, the groove (3) as much as possible and close to each other in a row and are arranged alternately with each other, such that the groove (3) tangent to each other, in both sides of the blade completely covering the surface of the blade.
2.如权利要求I所述的设置有半球形或多边形凹槽布置技术的风力涡轮机叶片,其特征在于,所述风力涡轮机叶片的表面被完全覆盖,以对来自叶片正面的移动的风的利用和管理实现最大化,通过利用特定的凹槽布置技术所带来的空气动力学优势,所述风力涡轮机叶片最大程度地发挥性能,同时实现了这些叶片的表面上以及穿过叶片和流出叶片时的最小的摩擦和空气的最大的层流流动,由于这种技术,实际上消除了叶片正反两面之间的压力差,同时阻力的比率被最小化,这种技术的结果在于,尽可能地实现了叶片旋转的最大化(每分钟的转动圈数更多),因而产生更多电能。 2. The right to set I said hemispherical or polygonal groove arrangement art wind turbine blades of the wind from the front of the moving blades of use, characterized in that the wind turbine blade surface is completely covered, and management to maximize, through the use of a specific technology brings the groove arrangement aerodynamic advantage of the wind turbine blades to maximize performance, while achieving the upper surfaces of the blade and when the blade through the blade in and out The largest laminar flow minimal friction and air, because of this technology, virtually eliminating the pressure difference between both sides of the blade, while the rate of resistance is minimized, the result of this technology is that as much as possible to achieve the maximization of rotating blades (number of revolutions per minute more laps), resulting in more power.
3.如权利要求I所述的设置有半球形或多边形凹槽布置技术的风力涡轮机叶片,其特征在于,所述凹槽以完全覆盖叶片表面的精密设置来布置,以使对风的管理、空气分子的层流流动以及全部的风的质量扩散实现最大化,所述风力涡轮机叶片能够最大程度地利用和管理因风在叶片正面的正面撞击以及空气分子向叶片背面的转移期间而产生的空气动力学现象,以使升力最大化,同时消除了从叶片背面流出的风的不利的减速压力(阻力)。 3. Set I said hemispherical or polygonal groove arrangement art wind turbine blade according to claim, wherein the groove to completely cover the surface of the blade precision set arranged to make the management of the wind, laminar flow of air molecules and the quality of all the wind to maximize the spread of the wind turbine blades can maximize the use and management of front blades due to wind and air molecules hit the front to the back of the blade during the transfer of air generated dynamic phenomena, so that maximize lift while eliminating the blade out of the wind from the back of adverse deceleration pressure (resistance).
4.如权利要求I所述的设置有半球形或多边形凹槽布置技术的风力涡轮机叶片,其特征在于,所述特定的技术能够仅应用于叶片背面的表面,因此所述技术仅仅针对阻力最小化。 The set I said recess has hemispherical or polygonal arrangement art wind turbine blade as claimed in claim wherein said specific technology can be applied to the back surface of the blade only, and therefore the technology only for minimum resistance of.
Description  translated from Chinese

具有凹槽的风力涡轮机叶片 Wind turbine blade having a recess

技术领域 Technical Field

[0001] 本发明涉及一种应用于布置在风力涡轮机塔上的转子上的水平轴风力涡轮机叶片的技术。 [0001] The present invention relates to a horizontal axis wind turbine blade is applied is arranged on a wind turbine tower on the rotor technology.

背景技术 Background

[0002] 这种类型的具有叶片的风力涡轮机是已知的,其由利用玻璃加强的轻塑料、铝、薄的木制层等已知的材料制成。 [0002] This type of wind turbine having a blade is known, which consists of light with a glass reinforced plastic, aluminum, a thin layer of wood and other materials known. 叶片的背面相比于正面更弯曲一些。 The back of the blade is more positive compared to the slightly bent. 除了对风力涡轮机的性能具有关键影响的长度之外,诸如宽度、厚度以及重量之类的其他因素也会对特征在于空气动力学设计上的需求与耐久性之间的平衡的转动的最大化具有影响。 In addition to the length of the critical impact on the performance of the wind turbine, such as width, thickness, and other factors like the weight, characterized in that the rotation will also maximize aerodynamic balance the needs of design and durability between having affected.

[0003] 风力涡轮机叶片以特定的方式设计和制造,布置在转子上,以最大程度地利用使叶片转动的经过其中的风能。 [0003] The wind turbine blade in a particular way to design and manufacture, are arranged on the rotor, in order to maximize the use of the rotation of the blades through which wind energy. 通过叶片在轴上的转动,由发电机将动能(转动能)转化为电能。 By rotation of the blades in the shaft, the generator by the kinetic energy (rotational energy) into electricity. 通过仅受风带来的压力团和阵风的影响而引发和进行这些叶片的旋转。 Only affected by the pressure groups and wind gusts caused and rotate the blade. 根据实施的比例,可以将转速判定为负面的(经济上无收益的或危险的)或正面的(合适且有用的)。 According to the proportion of the embodiment, the rotational speed can be judged to be negative (non-economic benefits or dangerous) or positive (suitable and useful). 在空气分子向旋转叶片的正面碰撞的过程中,风速下降,导致叶片正面压力升高,背面压力降低,由此产生了漩涡和涡流。 In the air molecules toward the front of the rotary blade during the collision, wind speed decrease, resulting in a positive pressure increases the blade, the back pressure is reduced, thereby generating a vortex and vortex. 当叶片以足够高的速度旋转时,会在叶片背面产生显著的漩涡和涡流,从而造成对旋转有不利影响的压力差(非均匀分布),进而妨碍风力涡轮机的正常操作和性能。 When the blades rotate at a speed high enough, it will have a significant swirl and eddy current in the back of the blade, resulting in adverse effects on the rotation of the pressure difference (non-uniform), and thus prevent normal operation and performance of the wind turbine. 最初,叶片从正面接受风的空气动力学压力,并导致叶片旋转。 Initially, receiving from the front blade aerodynamic wind pressure and cause the blades to rotate. 之后,正是由于主要表现在叶片背面的所产生的压力差的作用,产生了不利的空气动力学现象(漩涡和涡流),从而导致了转动减速以及其他不利于理想旋转的复杂情况。 After that, it is mainly due to the pressure difference arising in the back of the blade, resulting in adverse aerodynamic phenomena (eddies and turbulence), resulting in the rotation deceleration and other unfavorable ideal rotation of complications. 因此,这些后果包括对风力涡轮机运行的不利影响,无法使其性能最大化。 Therefore, these consequences include the adverse impact on the operation of the wind turbine, unable to maximize their performance. 风撞击叶片产生的湍流越大,则从叶片向风传输的能量也就越大,反之亦然。 Wind strikes blades generate greater turbulence, the energy transfer from the wind vane to the greater, and vice versa. 叶片与风之间的这种能量相互作用是空气动力学阻力。 This energy interaction between the blade and the wind aerodynamic drag. 更具体地,其包括水平方向的风阻(阻力)以及竖直方向的或动态的风上升力(升力)。 More specifically, dynamic or comprising horizontal wind drag (resistance) and the vertical direction upward force (lift). 水平方向的风阻(阻力)与风向相反地作用,从而降低叶片的旋转速率,导致压力差。 Drag (resistance) in the horizontal direction and the contrast effect of the wind, thereby reducing the rate of rotation of the blade, resulting in the pressure difference. 力(表现为阻力形式或压力阻力)从具有较大压力的区域(叶片正面)指向具有较小压力的区域(叶片背面)。 Area (blade rear) power (expressed as resistance or pressure resistance form) from an area with a large pressure (blade front) has a smaller pressure point.


[0004] 本发明的优点为,将半球形的凹槽以特定的顺序布置在风力涡轮机的叶片上,这是一种直接借鉴于布置在高尔夫球上的半球形或多边形(如六边形)凹槽的技术。 [0004] The advantages of the present invention is that the hemispherical grooves are arranged in a specific order on the blade of a wind turbine, which is a direct reference to the arrangement on the golf hemispherical or polygonal (eg hexagonal) technical groove. 这一技术充分利用了空气动力学现象,风最初在叶片正面撞击叶片,穿过叶片,最后从叶片内流出。 This technology leverages the aerodynamic phenomenon, originally wind vane blade frontal impact, through the blade, finally flowing out of the leaves. 本发明最大程度地管理这一过程,并在这些位置形成合适且可控的层流空气流,使叶片旋转得更稳定,从而提供了高质量、可靠、经济且安静的风力涡轮机运转。 The present invention is to maximize the management of the process and form a suitable and controlled laminar air flow in these locations, so that the blades rotate more stable, thus providing a high quality, reliable, economical and quiet operation of wind turbines.

[0005] 将高尔夫球中的凹槽布置技术等同地应用于风力涡轮机叶片表面,是为了重现最可能的层流空气流的形成,并最终以最有效的方式管理所伴随的进入叶片的和流出叶片的风。 [0005] The golf ball grooves disposed technique is equally applicable to a wind turbine blade surface, is formed in order to reproduce the most likely laminar air flow, and ultimately the most efficient way to manage the attendant enters and leaves outflow wind vane. 从而以可能的最大限度减小叶片两侧间的压力差。 Thereby possible to minimize the pressure difference between both sides of the blade.

[0006] 本发明所述的风力涡轮机叶片是成功的,因为它能产生可能的最快速叶片旋转(每分钟的旋转圈数更多),使电能产量达到最大。 [0006] The wind turbine blade according to the invention is successful because it produced the quickest possible blade rotation (number of revolutions per minute more laps), so the maximum power output. 通过在叶片的正反两面应用这种凹槽布置技术,加强了对风的管理,同时使收益最大化,且更系统地减小了容易出现的漩涡和涡流,以最有效的方式减小了水平风阻(阻力)对叶片背面的负面影响,减小了压力。 Application by both sides in such a groove arrangement blade technology, strengthen the management of the wind, while maximizing earnings, and more prone to systematically reduce the swirl and eddy currents in the most efficient way to reduce the the level of wind resistance (drag) on the back of the negative impact of the blade, reducing the pressure. 通过应用这一特殊凹槽布置技术,风力涡轮机叶片进行最高速转速、最有效地管理撞击并流入叶片中的风,并且可以平衡在叶片背面产生的漩涡和涡流,进而使升力达到最大。 Through the application of this special arrangement groove technology, wind turbine blades fastest speed, the most effective management of the impact of the wind and into the leaves, and can balance the swirl and eddy current generated in the back of the blade, thereby enabling the lift reached the maximum. 换言之,在相同的风力负载被传递到风力涡轮机的情况下,会产生更多的电能,这正与高尔夫球上的情况类似,而这是由已经应用并被证明很成功的凹槽布置技术带来的。 In other words, in the same wind load is transferred to the wind turbine case, it will produce more power, this being similar to the situation on the golf, which is already applied and proved to be very successful with the groove arrangement technology come. 这种凹槽被应用在高尔夫球的表面,或者是半球形、或者是多边形的凹槽,尽可能多且彼此尽可能靠近地布置成排且相互交替,以完全地覆盖球体表面且使平整的表面最小化。 This groove is applied on the surface of a golf ball, or hemispherical, or polygonal recess, as much as possible and as close as possible to each other and alternately arranged in a row with each other, so as to completely cover the surface of the ball and make flat the surface is minimized. 在球手使用球杆以相同的力度击打球体时,这种高尔夫球运动的距离要显著高于表面平整的老式高尔夫球所运动的距离。 When the club golfers hit the ball with the same intensity, the distance that golf was significantly higher than the surface roughness of the old golf movement distance. 因此,在特定的风力作用于风力涡轮机叶片表面的情况下,当应用了如高尔夫球中那样的相同布局的特定凹槽布置技术时,叶片的旋转将最终达到最大。 Thus, in the case of particular wind acting on the wind turbine blade surface, when applied as a specific arrangement of the grooves of golf in the same layout as when the rotating blades will eventually reach the maximum. 根据本发明的风力涡轮机叶片的特征在于,其表面应用了如高尔夫球那样的凹槽布置技术。 The wind turbine blades feature of the present invention is applied to the surface as the groove arrangement such as golf technology. 凹槽可以完全覆盖叶片的表面,或者也可以仅仅覆盖背面,以仅使其能够有效地对抗阻力现象。 Grooves may completely cover the surface of the blade, or may cover only the back, in order to enable it to be effective against only the resistance phenomenon.

[0007] 一种简单的在风力涡轮机叶片上体现这种特殊凹槽布置技术的方式根据本发明通过使用尽可能多(凹槽的数量与所覆盖的表面成比例)的半球形或多边形(如六边形)凹槽而实现,这些凹槽尽可能彼此紧密地布置成排且相互交替,产生相切的形式,覆盖整个叶片的正反两面,从而最大程度地利用并管理了风在正面的正面撞击期间以及风朝向背面运动期间发生的空气动力学现象,使得升力最大化,同时消除了不利的阻滞压力(阻力)。 [0007] A simple manifestation of this particular technique way recess arrangement on the wind turbine blade according to the present invention, by using as much as possible (number of grooves is proportional to the surface covered) hemispherical or polygonal ( e.g. hexagonal) achieved grooves, the grooves are arranged closely to each other as rows and alternately with each other, generating tangent forms, covering both sides of the entire blade, so that maximum use of the wind in front of and manage During frontal impact and aerodynamic phenomena occurring during the wind toward the back of the movement, so that maximize lift while eliminating the adverse retard pressure (resistance).

[0008] 通过将这种相对低廉的凹槽布置技术应用在已有的叶片表面上以及通过构建这种新型的叶片,显著改善了制造成本与能量产出的效益之比,并且,通过向风力涡轮机同时提供更经济、可控且有益的操作,还实现了更安静且通常更少故障的运行。 [0008] By this relatively inexpensive technology recess arranged on an existing leaf surface as well as by building this new blade, significantly improves the efficiency of the manufacturing cost and energy output ratio, and, by the wind turbines while providing more economical, controllable and beneficial operation, but also to achieve a more peaceful and generally less trouble-free operation.

[0009] 根据本发明的凹槽布置技术,允许在风力涡轮机叶片的表面上尽可能多地布置半球形或多边形凹槽,这些凹槽以彼此尽可能靠近的方式布置成排且相互交替,产生相切的形式,以使层流空气流及空气管理最大化,以降低正面阻力,因而使升力达到最大,使摩擦力达到最小,这是因为接下来的空气团的空气分子将会与捕获在这些凹槽中的之前的空气分子相接触,而不是直接接触叶片的有不利影响的平整表面或材料。 [0009] According to the present invention, the grooves are arranged technology allows the surface of the wind turbine blade as much as possible arranged hemispherical or polygonal recesses, grooves as close as possible to each other, arranged in rows and alternately with each other, generating tangent form, so that the air flow and air management maximize laminar flow, to reduce a positive resistance, thus making the lift reaches the maximum, so that friction is minimized because the next group of air with air molecules will be trapped in the these grooves before the air molecules into contact, rather than in direct contact with the blade has a flat surface or adversely affect the materials.

附图说明 Brief Description

[0010] 图I示出了三个风力涡轮机叶片的主视图。 [0010] Figure I shows three wind turbine blades of the main view.

[0011] 图2示出了叶片放大后的主视图。 [0011] FIG. 2 shows an enlarged front view of the blade.

[0012] 图3示出了三个风力涡轮机叶片的后视图。 [0012] FIG. 3 shows a rear view of the three wind turbine blades.


[0013] 参照附图描述在风力涡轮机叶片表面上应用凹槽布置技术的方法。 [0013] Referring to the drawings layout techniques used in the method described groove surface of a wind turbine blade. 风力涡轮机由转子⑴、叶片⑵、半球形凹槽(3)以及风力涡轮机塔⑷构成。 ⑴ by the wind turbine rotor, blade ⑵, hemispherical recesses (3) and the wind turbine tower ⑷ composition. 凹槽根据叶片的表面尺寸以最高的数量并以理想的有效尺寸成排地布置在叶片的表面上,尽可能地彼此靠近且相互交替,产生相切的形式。 The surface dimensions of the recess in the blade and the highest number of the desired effective size of rows arranged on the surface of the blade, close to each other and alternately with each other as much as possible, resulting in tangential form.

[0014] 如附图所示,在叶片表面仅布置有大小相同的半球形凹槽。 [0014] As shown in the drawings, only the surface of the blade of the same size are arranged hemispherical recesses. 然而,这并不排除基于半球形凹槽布置技术布置的仅仅多边形凹槽(如六边形凹槽)的实施方式,这些多边形凹槽尽可能地彼此靠近,布置成排并且相互交替,产生相切的形式,从而在叶片的正反两面都完全覆盖叶片的表面。 However, this does not exclude a hemispherical recess disposed on only a polygonal groove arrangement art (e.g. hexagonal recess) of the embodiment, the polygons grooves as close as possible to each other, and alternately arranged in a row with each other, generating phase cut form, so that both sides of the blade completely cover the surface of the blade.

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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
CN105089924A *26 Aug 201525 Nov 2015陈海花Electric generator blade
International ClassificationF03D1/06
Cooperative ClassificationY02E10/721, F05B2240/32, F03D1/0633, F05B2250/28, F05B2250/241
Legal Events
6 Feb 2013C06Publication
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4 May 2016C02Deemed withdrawal of patent application after publication (patent law 2001)