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Publication numberCN101300419 A
Publication typeApplication
Application numberCN 200680038594
PCT numberPCT/DK2006/000582
Publication date5 Nov 2008
Filing date17 Oct 2006
Priority date17 Oct 2005
Also published asCA2625997A1, CA2625997C, CN101300419B, CN102588206A, CN102588206B, CN102606388A, CN102606388B, DE602006011640D1, EP1945942A1, EP1945942B1, EP2163760A1, EP2172648A1, US8177517, US8469672, US8864473, US20090232656, US20120257982, US20130272891, WO2007045244A1
Publication number200680038594.9, CN 101300419 A, CN 101300419A, CN 200680038594, CN-A-101300419, CN101300419 A, CN101300419A, CN200680038594, CN200680038594.9, PCT/2006/582, PCT/DK/2006/000582, PCT/DK/2006/00582, PCT/DK/6/000582, PCT/DK/6/00582, PCT/DK2006/000582, PCT/DK2006/00582, PCT/DK2006000582, PCT/DK200600582, PCT/DK6/000582, PCT/DK6/00582, PCT/DK6000582, PCT/DK600582
InventorsP·格拉鲍
ApplicantLm玻璃纤维制品有限公司
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
Blade for a wind turbine rotor
CN 101300419 A
Abstract
A blade (1) for a rotor of a wind turbine having a substantially horizontal' rotor shaft, said rotor comprising a hub, from which the blade extends substantially radially from said rotor when mounted. The blade (1) has a chord plane (K) extending between the leading edge (5) and the trailing edge (S) of the blade (1 ) . The blade (1) comprises a root area (2) closest to the hub, an airfoil area (4) furthest away from the hub and a transition area (3) between the root area (2) and the airfoil area (4), and comprises a single airfoil along substantially the entire airfoil area (4) . The blade (1) comprises at least a first root segment (7) and a second root segment (8) along substantially the entire root area (2) , said segments being arranged with a mutual distance, as seen transverse to the chord plane (K) . At least one of the root segments (7, 8) has an airfoil profile.
Claims(11)  translated from Chinese
1. 一种用于具有基本水平转子轴的风力涡轮机转子的叶片(1),所述转子包括毂,安装时叶片(1)从所述毂基本上径向伸出,所述叶片(1)具有在所述叶片的前缘(5)和后缘(6)之间延伸的翼弦面(K),并且所述叶片(1)包括最靠近毂的根部区域(2)、距毂最远的翼面区域(4)和在根部区域(2)和翼面区域(4)之间的过渡区域(3),并且所述叶片(1)包括基本上沿着整个翼面区域(4)的单一翼面,其特征在于,叶片(1)包括基本上沿着整个根部区域(2)的至少第一根部部分(7)和第二根部部分(8),所述部分布置成横向于翼弦面(K)具有一定的相互距离,而且根部部分(7,8)中的至少一个具有翼型。 1. A rotor blade for a wind turbine having a substantially horizontal rotor shaft (1), said rotor comprising a hub, when installing the blade (1) extending substantially radially from said hub, said blade (1) having a leading edge extending between said blade (5) and a trailing edge (6) of the chord plane (K), and the blade (1) comprises a root area closest to the hub (2), the farthest away from the hub transition zone (3) (4) between the airfoil area (4) and at the root area (2) and wing surface area, and the blade (1) comprises substantially along the entire wing surface area (4) single airfoil, characterized in that the blade (1) comprises a substantially along the entire root area (2) at least a first root portion (7) and a second root portion (8), said portion is arranged transverse to the chord surface (K) with a certain distance from each other, and the root portion (7,8) having at least one airfoil.
2、 根据权利要求1所述的叶片(l),其特征在于,叶片的翼弦面(K)沿叶片的纵向(L)是扭曲的,其中所述扭曲在叶片的纵向(L)上可达80度。 2. The blade (l) 1 according to claim, characterized in that the blade chord plane (K) along the longitudinal direction of the blade (L) is twisted, wherein the twist in the blade longitudinal direction (L) on to up to 80 degrees.
3、 根据权利要求1或2所述的叶片(l),其特征在于,至少一个带有翼型的根部部併7, 8)的翼弦面(K1, K2 )基本上平行于最^毂的区域内的叶片本身的翼弦面(K)。 3. The blade (l) 1 or 2 of the preceding claims, characterized in that the base portion and at least one airfoil with 7, 8) of the chord plane (K1, K2) substantially parallel to the hub ^ blade itself chord surface area (K).
4、 根据前述权利要求中任一项所述的叶片(l),其特征在于,第一和第二根部部併7, 8)都具有翼型。 4, any one of the preceding claims wherein the blade (l), characterized in that the first and second root portions and 7, 8) has an airfoil.
5、 根据前述权利要求中任一项所述的叶片(l),其特征在于,至少一个带有翼型的根部部併7, 8)的翼弦面(K1, K2)具有基本上度定的宽度,过渡区織3) 的翼弦面(K3, K4)随着与毂的距离的增加而变宽,并且翼面区域(4)的翼弦面(K) 随着与毂的距离的增加而变窄。 5, any one of the preceding claims wherein the blade (l), characterized in that the base portion and at least one airfoil with 7, 8) of the chord plane (K1, K2) having a substantially constant degree The width of the transition zone woven 3) chord plane (K3, K4) with increasing distance from the hub widened, and as the distance from the hub of the wing surface area (4) of the wing chord plane (K) of increases narrowed.
6、 根据前述权禾腰求中任一项所述的叶片(l),其特征在于,过渡区域(3) 包括至少第一过渡部浙9)和第二过渡部併10),在横向于翼弦面(K)看去时,所述部分布置成具有一定的相互距离,其中过渡部併9, IO)中的至少一个具有翼型。 6, according to the previous weight Wo waist seek blade (l) according to any one of, wherein the transition region (3) comprises at least a first transition portion Zhejiang 9) and the second transition portion and 10), transverse to the chord plane (K) when viewed, the portion is arranged to have a certain distance from each other, and wherein the transition section 9, IO) having at least one airfoil.
7、 根据权利要求6所述的叶片(l),其特征在于,至少一个带有翼型的过渡部併9, IO)的翼弦面(KI, K2)基本上平行于过渡区織习和翼面区戮"之间的过渡处的叶片本身的翼弦面(K)。 7. The blade (l) 6 according to claim, characterized in that the transition portion and 9, IO) chord plane (KI, K2) having at least one substantially parallel to the airfoil transition region and learning weave airfoil blade at the transition area kill "itself between the chord plane (K).
8、 根据权利要求1-5中任一项所述的叶片(l),其特征在于,第一和第二根部部併7, 8)在过渡区織3)最靠近毂的部分处相连。 8. The blade according to any one of claims 1 to 5 (l) as claimed in claim wherein the first and second root portions and 7, 8) in the transition region weave 3) connected to the portion closest to the hub.
9、 根据丰又利要求6或7所述的叶片(l),其特征在于,第一和第二根部部併7, 8)合并成为第一和第二过渡部併9, 10),其中第一和第二过渡部併9, 10) 与过渡区喊3)距,远的部分相连。 9, according to the abundance and claims blade (l) 6 or 7, characterized in that the first and second root portions and 7, 8) merge into the first and second transition portions and 9, 10), wherein and first and second transition section 9, 10) and the transition zone shout 3) from the connected distant parts.
10、 根据前述权利要求中任一项所述的叶片(l),其特征在于,第一和第二根部部併7, 8)在根部区域(2)的部分处相连形成公共的安装区域,所述区域雌具有基本圆形的截面。 10, according to the blade (l) according to any of the preceding claims, characterized in that the first and second root portions and 7, 8) in the root region (2) at a connected portion to form a common mounting area, The region has a substantially circular cross-section female.
11、 根据前述权禾腰求中任一项所述的叶片(l),其特征在于,至少一个带有翼型的根部部併7, S)是被倾安装的部併l5, l6)。 11, the right of the preceding one of said waist Wo evaluates any blade (l), characterized in that the root portion of the airfoil and having at least one 7, S) are mounted inclined portion and l5, l6).
Description  translated from Chinese

用于风力涡轮机转子的叶片技术领域本发明涉及一种用于具有基本水平转子轴的风力涡轮机转子的叶片,所述转子包括毂,安装时叶片从所述毂基本上径向伸出,所述叶片具有在所述叶片的前缘和后缘之间延伸的翼弦面,所述叶片包括最靠近毂的根部区域、距毂最远的翼面区域和在根部区域和翼面区域之间的过渡区域,并且所述叶片包括基本上沿着旨翼面区域的单一翼面。 Technical Field of the rotor for a wind turbine blade of the present invention relates to a blade for a wind turbine rotor having a substantially horizontal rotor shaft, said rotor comprising a hub, when installing blade extending substantially radially from said hub, said blade having a chord plane between the leading and trailing edges of the blade extends the blade includes a root hub closest area furthest away from the hub and airfoil region between the root region and the airfoil region transition area, and along the blade includes a substantially single purpose airfoil region airfoil. 背景技术理想地,翼面式叶片成形为类似于一般的飞机机翼的形状,随着与毂的距离的减少,这种叶片的翼弦面宽度以及它的一阶导数不断增加。 BACKGROUND Ideally, airfoil blade shaped like an airplane wing general shape, with the reduction of the distance from the hub, this chord of the blade surface width and its first derivative of the increase. 这就导致所述叶片理想地在毂附近变得相当宽。 This results in the vicinity of the blade hub desirably becomes quite wide. 这又导致在将叶片安装到^J:时会出现问题, itl洲,由于叶片表面积较大,这会导致安装叶片时的显著载荷,例如m载荷。 This in turn results in the blade is mounted to ^ J: When problems occur, itl Island, since large blade surface area, which will lead to a significant load when mounting the blade, e.g., m load. 因此,在过去数年里,叶片的结构己经朝着一种靴^爐,在这种形状中, 叶片包含最靠近毂的根部区域,距毂最远的翼面区域,和在根部区域和翼面区域之间的过渡区域。 Thus, in the past few years, the structure of the blade has a shoe toward ^ furnace, in this shape, the blade root area closest to the hub contains, furthest away from the hub airfoil region, and in the root region and airfoil transition area between the regions. 所述翼面区域具有理想的或,乎理想的叶片形状,而根部区域具有基本上圆形的截面,其能«^风暴载荷并使得更容易和更安全地把叶片安装到毂上。 Or, almost ideal blade shape having a desired region of the airfoil, whereas the root region has a substantially circular cross-section, which is capable of «^ storm loads and easier and safer to install blades to the hub. 优选所述根部区域直径是沿着所述旨根部区域f亘定的。 Preferably the diameter of the root region is aimed along the root region through a given f. 由于所述圆?W面,所述根部区域并没有提高风力涡$^机的发电量,而事实上, 由于风阻降低了一些发电量。 Since the round? W surface, the root region did not increase generating capacity of wind eddy $ ^ machine, in fact, due to the drag reducing the number of power generation. 顾名思义,所述过渡区域具有从根部区域的圆形形状逐渐变化到翼面区域的翼型的形状。 As the name suggests, the transition region from a circular shape having a gradual change in the root region to the airfoil shape of the airfoil region. 一般地,过渡区域的宽度随着与毂的距离的增加而基本上线性增加。 Generally, the width of the transition region with increasing distance from the hub increases substantially linearly. 众所周知,在飞机行业,带有两个机翼的飞机即通常所说的双翼飞机,通常比只有一个机翼的飞机更容易升空。 As we all know, in the aircraft industry, the aircraft with two wings known as the biplane, usually more than just one wing of the aircraft easier to launch. 这允许在不增加机翼宽度的情况下增大飞机机翼的总升力。 This allows the wing without increasing the width of the situation to increase the total lift aircraft wing. 结合风力涡轮机的叶片,也就是ffiil制造带有两个或更多转子的风力涡轮机也可获知这个原理。 Combined with a wind turbine blade, i.e. ffiil manufacturing a wind turbine rotor with two or more may also be informed of this principle. CA2395612描述了带有两个同轴转子的风力涡轮机,其中一个转子比另一个转子旋转更决。 CA2395612 describes a wind turbine with two coaxial rotors, one rotor than the other rotor to rotate more decisions. GB 758628描述了带有两个在相反方向上旋转的同轴,的风力涡轮机。 GB 758628 describes a wind turbine with two coaxial rotating in the opposite direction, the. W098/31934揭示了类似于双翼机设计的叶片。 W098 / 31934 discloses a similar biplane designed blades. 所述叶片由通过横拉条相互连接的两个平行的翼梁构造而成。 The blade made by two parallel horizontal brace interconnected spar constructed. 在每个翼梁上安装两个流线型的元件,所述元ft^别包括共同构成翼面的前缘和后缘。 Streamlined installation of two elements in each spar, do not include the yuan ft ^ together form a leading edge and a trailing edge of the airfoil. US5161952揭示了一种用于风力涡轮机转子的双平面结构。 US5161952 discloses dual-plane structure for a wind turbine rotor. 所述风力涡轮机设计成使得两个直叶片彼此以一定距离与所述转子的毂连接。 The wind turbine is designed so that two straight blades at a certain distance from the rotor hub connected to each other. 所述两个叶片的末端互相l^接。 Each of the two end vanes ^ l connected. 发明内容本发明的目的是提供一种新的,的叶片结构。 Object of the present invention is to provide a new leaf structure. 根据本发明,通过所述叶片和具有翼型的根部部分中的至少一个根部部分实现这个目的,所述叶片包括基本上沿整个根部区域的至少第一根部部分和第二根部部分,所述部分布置成具有横向于翼弦面的相互间距。 According to the present invention, the blade and having at least one root portion of the root portion of the airfoil to achieve this object, the blade comprising substantially along the entire root area of the root portion of at least a first and a second root portion, said portion arranged to have a plane transverse to the chord distance from each other. 以这样的方式, 所述带有翼型的根部部分有助于提高风力涡轮机的发电量。 In this manner, with the root portion of the airfoil helps to increase the power output of the wind turbine. 根据本发明叶片的,实施例,叶片的所述翼弦面在叶片的纵向上是扭曲的,其中所述扭曲可能在叶片的纵向上达到80度。 The blade of the present invention, an embodiment, the surface of the blade chord in the longitudinal direction of the blade is twisted, wherein the twist may reach 80 degrees in the longitudinal direction of the blade. 一般地,所述扭曲在60和70度之间。 Typically, the twist between 60 and 70 degrees. 通常情况下,所述扭曲的一阶导数随着与毂的距离的递减而增大, 逸就意味着,翼弦面Kl在根部区域2的扭曲i^相对较高。 Under normal circumstances, the first derivative of the twist with decreasing distance from the hub increases, Yi means Kl chord face twisted in the root region of ^ i 2 is relatively high. 根据本发明的,实施例,至少一个带有翼型的根部部分的翼弦面基本上平行于最靠近轮毂的区域内的叶片本身的翼弦面。 Chord surface according to embodiments of the present invention, at least one airfoil root portion having substantially parallel to the blade closest to the hub within the region itself chord face. 更适宜地,叶片的翼弦面在叶片的纵向上是扭曲的,以补偿叶片随着与毂的距离的增加而增加的局部M, 錄明叶片根据距离毂的半径不同地'看到"风向。錄明在该实施例中,翼弦面在根部区域的纵向上的路径是翼弦面在翼面区域和/或过渡区域的纵向上的路径的延续。根据本发明的具体实施例,第一和第二根部部分都具有翼型。这样,两个根部部分都有助于提高风力涡轮机的发电量,也可以这样设计使两部分的总贡献量与理想叶片的宽阔部分的贡1W相当。根据«实施例,至少一个带有翼型的根部部分的翼弦面具有基本上恒定的宽度,过渡区域的翼弦面随着与毂的距离的增加而变宽,翼面区域的翼弦面随着与毂的距离的增加而变窄。这样,本发明的叶片就具有与常规叶片相当的形状,这样现有的叶片的模具可以被相对简易地修改以便能够制造新型叶片。根据具体实施例,过渡区域包括至少第一过渡部分和第二过渡部分,在横向于翼弦面看去时,所述部分布置成具有一定的相互距离,其中过渡部分中的至少一个过渡部分具有翼型。更适宜地,在过渡区域和翼面区船间的过渡处, 至少一个带有翼型的过渡部分的翼弦面平行于叶片本身的翼弦面,并且优选两 More suitably, the chord surface of the blade in the longitudinal direction of the blade is twisted to compensate for blade increases with increasing distance from the hub of the local M, Luming blade according to the distance of the hub radius different to 'see' the wind . Luming In this embodiment, the path in the longitudinal plane chord root region is a continuation chord surface paths on the wing surface area and / or the transition zone longitudinal According to a particular embodiment of the invention, the first and a second portion having an airfoil root. Thus, all help to improve both the root portion of the wind turbine power output to be so designed so that the wide portion tribute 1W total contribution of the two parts of the blade with the desired equivalent. According to «embodiments, the chord root portion of at least one surface with an airfoil having a substantially constant width, chord surface of the transition region with increasing distance from the hub widened, chord airfoil surface area With the increase of the distance from the hub narrowed. Thus, the present invention is the blade having a shape corresponding to conventional blades, so that existing mold blade can be relatively easily modified to enable the manufacture of new blades. According to a particular embodiment the transition region comprises at least a first transition portion and a second transition portion, in the plane transverse to the chord when viewed, the portion is arranged to have a certain mutual distance, wherein the at least one transition portion having a transition portion of the airfoil. More Suitably, the transition of the transition region between the boat and the wing surface area, at least one side with chord transition portion of the airfoil is parallel to the blade itself chord surface, and preferably two

^i渡部分都具有翼型。 ^ I have aerofoil cross section.

通常情况下,根部区域和过渡区域的总长度在叶片总长度的5%和35%之间,并且经常是在叶片总长度5%和25%之间,甚至是叶片总长度的5%和15% 之间。 Typically, the total length of the root region and the transition region between 5% and 35% of the total length of the blade, and often between 5% and 25% of the total length of the blade, or even 5% of the total length of the blade and 15 between%.

根据本发明的,实施例,第一和第二根部部分在31渡区域最靠g的部分处连接。 According to embodiments of the present invention, the first and second root portion 31 g of the transition region-most portion of the connection. 这样,过渡区域可以具有与常规叶片相当的形状,而只有根部区域具有双叶型。 Thus, the transition region may have a shape corresponding to a conventional blade, while only the root area has a double leaf type.

根据叶片的另一个实施例,第一和第二根部部分合并成为第一和第二过渡部分,而第一和第二过渡部分与距毂最远的过渡区域的部分相连。 According to another embodiment of the blade, the first and second root portions merge into the first and second transition portion, and the first and second transition portion connected to the transition region furthest away from the hub portion. 这样,过渡区域也具有,结构并且具有潜在的更大升力。 Thus, it has a transition region, and a structure having a potentially greater lift.

根据优选实施例,在最^fi^的根部区域的部分,第一和第二根部部分相连形成共同的安装区域。 According to a preferred embodiment, some of the most ^ fi ^ in the root region, the first and second root portions connected to form a common mounting area. 更适宜地,这个安装区域具有基本圆形的横截面。 More suitably, the mounting area has a substantially circular cross section. 这样,根据本发明的叶片可以具有与常规叶片相应的安装法兰,以便这些新式叶片^A到现有的毂中。 Thus, the blade according to the present invention may have a mounting flange corresponding to conventional blades so that these new blades ^ A to an existing hub.

根据优选实施例,叶片由用壳体构成,所述壳体由玻璃纤维或者碳纤维加强的聚合物材料制成。 According to a preferred embodiment, the blade constituted by a casing, the casing is made of glass fiber or carbon fiber reinforced polymeric material. 顿宜地,叶片设计成为单一的娜壳体。 Dayton appropriate, the blade design into a single Na housing.

可供选择的,至少一个带有翼型的根部部分可以有被分开安装的部分。 Alternative, the at least one airfoil with a root portion can be installed separately portion. 这个实施例的优越性在于,所述部分可以无需更换叶片而被用于现有的风力涡轮机,例如通过将这些部分安装到已安装叶片的根部部分。 The advantage of that embodiment, the blade portion can be used without changing the existing wind turbine, for example, by mounting these parts to the installed blade root portion. 也很显然,不是所有根部部分都需要固定到mi:。 Clearly also, not all need to be fixed to the root portion are mi :.

附图说明 Brief Description

下面参考附图详细地说明本发明,其中 The present invention is described below with reference to the accompanying drawings, in which in detail

图1显示了理想翼面式叶片的俯视图; 图1显示了常规翼面式叶片的透视图;禾口图3-9显示根据本发明的叶片的不同实施例。 Figure 1 shows the ideal blade airfoil plan view; Figure 1 shows a perspective view of a conventional airfoil blades; and Hekou Figure 3-9 shows the blade of the present invention according to different embodiments. 具体实施方式 DETAILED DESCRIPTION

图1显示了理想翼面式叶片20的实施例。 Figure 1 shows an embodiment of the ideal of the airfoil blade 20. 所述叶片具有适合固定到风力涡轮机的毂上的根部部件21 。 The blade root member 21 having a hub on a wind turbine is fixed to the fit. 所述理想的叶片20设计成叶片20的宽度随着与毂之间距离L的增加而减少。 The ideal blade 20 is designed with the width of the blade between the hub 20 and the distance L is reduced to increase. 此外,叶片20的宽度的一阶导数也随着与毂20的距离的增加而减少,这意味着,理想状态下,叶片20在根部区域21是很宽的。 In addition, the width of the first derivative of the blade 20 also increases with distance from the hub 20 is reduced, which means that, ideally, the blade 20 at the root region 21 is very wide. 逸就弓胞如何将叶片20固定到IU:的问题。 Yi bow Cellular how the blade 20 to the IU: the issue. 此外,安装时,由于所述叶片20 的表面面树艮大,叶片20以很大的K^载荷冲击所述毂。 In addition, the installation, since the surface of the blade surface 20 Burgundy big tree, blade 20 to impact a lot of K ^ load the hub.

因此,在过去数年里,叶片的结构已经朝着一种微^爐,其中,叶片的外部部分对应理想的叶片20,而根部区域的表面面积与理想的叶片相比被显著縮小。 Thus, in the past few years, the structure of the blade has been moving to a micro ^ furnace, which corresponds to the outer portion of the blade ideal blade 20, but was significantly reduced compared to the ideal blade surface area and root area. 这个实施例在图l中以虚线示出,其透视图显示在图2中。 The embodiment illustrated in Figure l is shown in dashed lines, a perspective view thereof shown in Figure 2.

从图2可以看出,所述常规叶片1包括最^ifi所述毂的根部区域2、距所述lfct远的翼面区域4和在根部区域2和翼面区域4之间的过渡区域3。 As it can be seen from Figure 2, the conventional blade 1 comprises a root region most ^ ifi the hub 2, airfoil region far from the lfct 4 and 2 in the transition zone and the airfoil region between the root region 3 4 . 叶片1 包括当叶片安装到IU:时朝向叶片1的旋转方向的前缘5,和面向前缘5的相反方向的后缘6。 1 comprises a blade when the blade is mounted to IU: 5 rotation direction toward the leading edge of the blade 1, the leading edge and the trailing edge facing the opposite direction 5 of 6. 所述翼面区域4具有理想的或M乎理想的叶片形状,而根部区域2具有基本上圆形的截面,其能^M^M^载荷并且使得更容易和更安^i也将叶片1安装至嗷上。 The airfoil area 4 has an ideal or almost ideal blade shape M, whereas the root area 2 has a substantially circular cross-section, which is capable of ^ M ^ M ^ load and makes it easier and safer ^ i blade 1 will attached to wailing on. 更适宜地,根部区域2的直径沿着旨根部区域2是恒定的。 More suitably, the diameter of the root region 2 along the root area 2 is intended to constant. 所^31渡区域3具有一个逐渐从根部区域2的圆形形状转换到翼面区域4 的翼型的形汰。 The transition region 31 ^ 3 has a gradual transition from the circular shape of the root region 2 to the airfoil region 4 airfoil shaped jig. 过渡区域3的宽度随着与所述毂的距离L的增加基本上线性增加。 As the width of the transition region 3 and the hub of the distance L increases substantially linearly increased.

所述翼面区域4具有翼型,该翼型带有在叶片1的前缘5和后缘6之间延伸的翼弦面K。 The airfoil region 4 has an airfoil, the airfoil with a leading edge of the wing chord plane extending between the blade 1 6 5 and the trailing edge K. 所述翼弦面的宽度随着与所述毂的距离L的增加而减少。 The width of the wing chord plane with increasing distance to the hub of L is reduced. 应该注意,所述翼弦面没有必要在其齡区域上直线延伸,因为叶片可能扭曲禾口/或弯曲,由此为翼弦面提供对应扭曲和/或弯曲的路线,这是最常出现的情形,以便补偿取决于距离毂的半径的所述叶片的局部鹏。 It should be noted, the chord face straight no need to extend the area of its age, the blades may be distorted because of Hekou / or bent, thereby providing a corresponding distortion and / or curved line as chord surface, which is the most frequently occurring situation, in order to compensate depends on the local Peng said blade radius from the hub.

由于圆形截面,根部区域2并没有iEit风力涡轮机的发电量,事实上却由于风阻而斷氐少许发电量。 Since the circular cross-section, the root zone 2 and not iEit generating capacity of wind turbines, in fact due to the drag and broken Di little electricity. 因此,本发明的想法,所述根部区域2和可选的过渡区域3分成为两个或更多部分,这样这些部分中的至少一个部分具有为叶片1的这一部分提供升力的叶型,从而有助于提高风力涡轮机的发电量。 Thus, the idea of the present invention, the root area 2 and optional transition region 3 divided into two or more parts, so that these portions having at least one portion that provides lift to the airfoil portion of the blade 1, whereby It helps to improve the power output of the wind turbine.

图3A显示了根据本发明的叶片的第一个实施例,其中朝向前缘5观察所述叶片,而图3B显示髓线BB的截面,图3C显示歸图3A的线CC的截面,其中截面CC位于根部区域2和过渡区域3之间的过渡部分。 3A shows a blade according to a first embodiment of the present invention, wherein the blade leading edge 5 toward the observation, while Figure 3B shows the cross section along line BB of myeloid lines, FIG. 3C shows the normalized cross section CC of Figure 3A, wherein the cross-section CC 3 located in the transition portion and the transition region between the root region 2. 根据该实施例,根部区域2被分,一根部部分7和第二根部部分8,而过渡区域3被分成第一过渡部分9和第二的过渡部分10。 According to this embodiment, the root area 2 is divided, a root portion 7 and the second root portion 8, and the transition area 3 is divided into a first transition portion 9 and the second transition portion 10. 所述两^1渡部分9和10在过渡区域3 和翼面区域4之间的过渡部分连接棘。 ^ 1 transition of the two portions 9 and 10 in the transition region 3 and the airfoil portion between the transition region connecting spines. 结果,在所述各个部分之间就形成了缝隙17。 As a result, between the various parts of the slit 17 is formed. 另外,这些部分可以通过安装^0f述部分之间的缝隙17内的加强體相互连接。 In addition, these parts can be installed to strengthen the body ^ 0f slit 17 is interconnected between said portions. 这些加强装置可以例如被^S成如钢制的格子结构,还可以提供有例如所谓的降阻叶型,其中该叶型的横截面具有对称的下降形状。 These stiffening means may for example be ^ S into a steel lattice structure such as, for example, can also be provided with a so-called resistance reduction leaf type, in which the leaf-shaped cross-sectional shape having a symmetrical decline. 这样,减小了加强驢的风阻,并且可以斷氐噪音的iSA。 This minimizes drag strengthen donkey, and can break Di noise iSA.

图3B显示该叶片的安装区域。 3B shows the mounting area of the blade. 在这个区域的叶片部分的叶型形成使得所述叶型位于带有圆形根部部分(用虚线12示出)的相应的常规叶片之内。 In the airfoil blade portion of the region is formed such that the airfoil is located within a corresponding conventional blade with circular root part (shown by dotted lines 12) in the. 第一根部部分7在包括翼弦面K1的安装区域内具有翼型,而第二个根部部分8具有能够减少该部分风阻的叶型,其对风力涡轮机的发电量不必起到皿作用。 7 has a first root portion comprising the chord plane K1 airfoil mounting region, and the second having a root portion 8 can reduce the drag of the airfoil section, which generation of the wind turbine does not have to play a role in the dish. 第一根部部分7合并成也具有包括翼弦面K3的翼型的第一过渡部分9。 Merged into the first root section 7 also includes a chord having a first transition surface of the airfoil section 9 K3. 第二根部部分8合并成为第二过渡部分10,并且从安装区域的已斷氏风阻的叶型逐渐转,为在第二过渡部分10包括翼弦面K4的实际翼型。 The second root portion 8 merged to become the second transition section 10, and the mounting area has been broken's drag airfoil gradually turn, is part of the 10 actual airfoil surface K4 include chord in the second transition. 该叶片的翼弦面K通常沿着叶片的纵向扭曲以补偿叶片的局部速度。 The chord of the blade along the blade surface K generally longitudinal twist to compensate for the local velocity of the blade. 因此,翼弦面Kl、 K3和K4 的路线是叶片在翼面区域4的翼弦面K的路线的延续。 Therefore, the chord face Kl, K3 and K4 route is blade airfoil chord surface area of 4 K line continuation.

叶片的翼弦面K可以沿叶片纵向扭曲到75-80度,但JM常情况下是在60 和70度之间。 Blade chord plane K can be twisted along the longitudinal direction of the blade to 75-80, but in the case of JM is often between 60 and 70 degrees. 通常,该扭曲的一阶导数会随着与毂的距离的递减而增加,錄明在根部区域2的翼弦面K1的扭曲更适宜相对较高。 Typically, the first derivative of the twisted with increasing distance from the hub of the decreasing and increasing Luming twisted chord in the root region of the surface K1 2 more suitable relatively high.

第一根部部分7和第二根部部分8在安装区域具有许多安装孔11 。 The first root portion 7 and the second root portion 8 in the mounting region 11 having a plurality of mounting holes. 这些孔11的位置与带有圆形根部部分12的常规叶片上的位置相同。 These holes 11 have the same location with a conventional blade on a circular root portion 12 is the same. 这样根据本发明的新叶片可以安装在常规的^i:,并以简易的方式在更换期间替换现有的叶片。 Under the new blade so that the invention can be installed in conventional ^ i :, and easy way to replace the existing blade during replacement.

图4和5分别显示了本发明的第二和第三实施例,它们是图3所示实施例的变型。 Figures 4 and 5 show the second and third embodiments of the present invention which is a modification of the embodiment shown in FIG. 3. 因此,这里只论述差异之处。 So, here only discuss the differences between. 如图4显示的第二实施例,第二根部部分^在安装区域内同样具有包括翼弦面K2的翼型。 Figure 4 shows a second embodiment, the second root portion ^ in the same installation area comprising a chord plane K2 with the airfoil. 此外,如图4B清楚示出的, 所述根部部分8】的叶型延伸至账部部件12的常规圆形叶型以外。 In addition, best shown in FIG. 4B, the root portion of the airfoil 8] extends to member accounts conventional circular portion 12 of the airfoil outside. 该附图也显示 The figures also show

了两个部分的翼弦面可以相互呈一定角度。 Chord face each other two parts can be angled.

根据附图5显示的第三个实施例,第一和第二根部部分72, 82以及第一和第二过渡部分92, lf都有对称的叶型。 According to the third embodiment of Figure 5 shows, the first and second root portions 72, 82 and first and second transition portion 92, lf are symmetrical airfoil. 示出所述叶型具有与叶片旋转方向平行的翼弦面,然而所述叶型可更适宜与旋转方向成一定的角度,该角度的选取决定于4断力增大到最大值。 The airfoil is shown having the rotating direction of the blade parallel to the chord plane, but may be more suitably the airfoil certain direction with the rotation angle of the angle depends on the selection of 4-off force increases to a maximum value.

如附图5B所示,第一根部部分72和第二根部部分82都延伸到常规根部部分12的圆形叶型以外。 As shown in Figure 5B, the first and the second root portion 72 extends into the root portion 82 has a conventional circular root portion of the airfoil 12 beyond. 最后,应当指出附图4和5以及附图3显示的实施例的根部部分的每一个都并入相应的过渡部分(92, 93, 102, 103),所述部分在过渡区域3和翼面区域4之间的过渡,接形成公共的叶型。 Finally, it should be noted that each of the root portion of the embodiment of Figures 4 and 5, and are incorporated in Figure 3 shows the corresponding transition portions (92, 93, 102, 103), said airfoil portion 3 and the transition region the transition zone 4 between then form a common leaf type.

附图6显示了叶片的第四实施例,其中第一根部部分73和第二根部部分83 在安装区域22连接在一起。 Figure 6 shows a fourth embodiment of the blade, wherein the first root portion 73 and a root portion 83 at a second mounting region 22 are connected together. 如附图6B所示,安装区域22是圆形的并包含安装孔ll,该叶片fflil所述孔被螺栓固定到毂上。 As shown, the mounting area figures 6B 22 is circular and includes mounting holes ll, which the aperture blade fflil is bolted to the hub. 该叶片适用于常规的毂,这样也可以在更新期间替换已安装在风力涡轮机上的现有叶片。 The blade is suitable for conventional hub, so you can replace the existing blade is mounted on the wind turbine during the update.

附图7显示了叶片的第五实施例,其中第一根部部分74和第二根部部分84 在安装区域22相连,但是这两锦分并没有鄉B毂的一定距离处连接,而是作为具有不同长度的两个分离叶片部件出现。 Figure 7 shows a fifth embodiment of the blade, wherein the first root portion 74 and the second root portion 84 is connected to the mounting region 22, but not both rural Kam points B to connect the hub at a distance, but as having two separate blade members of different lengths occur. 显然如附图7所示,不同的根部部分不必具有同样的厚度。 7 as clearly shown in the drawings, the different root portion need not have the same thickness.

附图8显示了叶片的第六实施例,其中第一、第二和第三根部部分75, 85, 13分别合并成为第一、第二和第三过渡部分95, 105, 14。 Figure 8 shows a sixth embodiment of the blade, wherein the first, second, and third root portion 75, 85, 13 respectively merge into first, second and third transition portion 95, 105, 14. 在这里显示出第一和第二根部部分75, 85以及第一和第二过渡部分95, 105具有^^这些部分的风阻的形状,同时第三根部部分13和第三过渡部分14具有现有的翼型。 Here shows the first and second root portion 75, 85 and first and second transition portion 95, 105 having the shape of these portions of the drag ^^, while the third root portion 13 and the third transition portion 14 having a conventional airfoil. 然而, 这些叶型可都具有增加相应区域的升力的叶型,从而也增加风力涡轮机的发电量。 However, the airfoil may have to increase the lift of the corresponding region of the airfoil, thus increasing the power output of the wind turbine. 当然,所述三个根部部分75, 85, 13可如附图6和7所示那雜安装区域连接。 Of course, the three root portion 75, 85, shown that hybrid mounting region 13 may be as in Figure 6 and 7 connections.

附图9显示了与附图6的实施例相对应的实施例,但是其中叶片额外具有第一分开安装的叶片部件15和第二分开安装的叶片部件16。 Figure 9 shows the embodiment of Figure 6 corresponds to the embodiment, but wherein the additional blade member 15 and the blade having a first blade member mounted separately installed separately from the second 16. 所述分开安装的叶片部件15, 16通过许多保J,置18被分别地安装在第一和第二根部部分73, 83上。 15, 16 separated by said blade member mounting many Paul J, 18 are placed respectively mounted on the first and second root portions 73, 83 on. 所述叶片部件15和16沿着根部区域2延伸,也可以选择沿着叶片的过渡区域3延伸。 The blade members 15 and 16 extend along the root area 2, you can choose 3 extends along the transitional area of the blade. 叶片本身不一定要有两个根部部分和/或过渡部分,但是可以有这样的形状,即其中没有缝隙17,没有根部部分和/或过渡部分,在这种情况下, 叶片的根部区域和过渡区域相当于常规的叶片。 Two blade itself does not have to root portion and / or the transition section, but may have a shape, i.e., where there is no gap 17, no portion and / or the roots of the transition portion, in this case, the blade root and the transition region region corresponds to a conventional blade. 这个实施例的优越性在于分开安装的叶片部件15, 16肯,被安装,而不需更换在己安装的风力涡轮机上的叶 The superiority of the embodiment is that the blade parts separately installed 15, 16 Ken, is installed without the need to replace the leaf on the wind turbine has been installed

片。 Sheet. 所述保^g可形成具有例如用于陶氏风阻和噪声iax的降阻叶型。 The security ^ g may form a barrier such as drop leaf type for Dow drag and noise iax of. 本发明已经对,方案进行了描述。 The present invention has been the program are described. 由此也可以想到没有偏离本发明的范围的许多改进。 We can also think of many improvements without departing from the scope of the present invention. 对本领域的技术人员显而易见的,和变化被认为落入本发明 Those skilled in the art of the obvious, and variations are considered to fall within the present invention

的范围之内。 Within the range. 例如,附图9显示的实施例可只有单个分开安装的叶片部件。 For example, Figure 9 shows an embodiment may be in single separately mounted blade member. Also

可以想到这样的实施例:其中各个部分具有单独的叶片角调节。 It is contemplated that such embodiments: wherein each portion having a separate blade angle regulation.

附图*斜己列表 BRIEF * oblique already list

1叶片 1 blade

2根部区域 2 root area

3过渡区域4翼面区域5前缘6后缘 3 transition zone 4 zone 5 the leading edge of the airfoil trailing edge 6

7第一根部部分 7 The first root portion

8第二根部部分 8 second root portion

9第一过渡部分 The first transition portion 9

10第二过渡部分 The second transition portion 10

11安装孔 11 mounting holes

12圆形根部部分 12 circular root portion

13第三根部部分 The third root portion 13

14第四根部部分 14 fourth root portion

15第一分开安装的叶片部件 15 components of the first blade installed separately

16第二分开安装的叶片部件 The second blade member 16 separately installed

17缝隙 17 slot

18保^g 18 Paul ^ g

20叶片 20 leaves

21根部部分 The root portion 21

22安装区域 Mounting region 22

Kx翼弦面 Kx chord plane

L纵向 L Longitudinal

10 10

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Classifications
International ClassificationF03D1/06
Cooperative ClassificationF03D1/0658, F03D1/0641, Y02E10/721, F05B2240/301, F05B2260/97, F01D5/12
European ClassificationF03D1/06B6B, F03D1/06C2
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