CN105971817A - Fairing front winglet of wind turbine generator and wind turbine generator with winglet - Google Patents

Fairing front winglet of wind turbine generator and wind turbine generator with winglet Download PDF

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Publication number
CN105971817A
CN105971817A CN 201610391040 CN201610391040A CN105971817A CN 105971817 A CN105971817 A CN 105971817A CN 201610391040 CN201610391040 CN 201610391040 CN 201610391040 A CN201610391040 A CN 201610391040A CN 105971817 A CN105971817 A CN 105971817A
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CN
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Prior art keywords
wind
fairing
generator
winglet
turbine
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CN 201610391040
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Chinese (zh)
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CN105971817B (en )
Inventor
张羽
刘峰
鲁志平
冯克瑞
张磊
马泳吏
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北京唐浩电力工程技术研究有限公司
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS; PRODUCING MECHANICAL POWER; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D1/00Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06Rotors
    • F03D1/0608Rotors characterised by their form
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS; PRODUCING MECHANICAL POWER; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D1/00Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06Rotors
    • F03D1/065Rotors characterised by their construction, i.e. structural design details
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction
    • Y02E10/721Blades or rotors

Abstract

The invention discloses a fairing front winglet of a wind turbine generator and the wind turbine generator with the winglet. The fairing front winglet of the wind turbine generator comprises multiple winglets and a winglet fairing for fixing the winglets; the front end of the winglet fairing is an arc surface; a connecting part connected with a blade fairing in a blade position of the wind turbine generator is arranged at the back end of the winglet fairing; and the multiple winglets are uniformly distributed around front and back central axis of the winglet fairing. The wind turbine generator with the fairing front winglet is uniformly provided with multiple winglets on the fairing in front of blades; and the winglets rotate with the blades, and can guide air currents blown to the winglets to the front edges of the blades of the wind turbine generator behind the winglets. Through arrangement of the winglets, the winglets can make up the defect of cylindrical parts of the blades of the wind turbine generator at the blade root parts incapable of rotating by dint of wind power or weaker rotating efficiency, so that the power generation efficiency of the wind turbine generator is improved.

Description

风电机组导流罩前略小翼及具有此小翼的风电机组 Before the wind turbine blade and a shroud smaller wind turbines having such winglet

技术领域 FIELD

[0001]本发明涉及一种小翼及具有此小翼的风电机组,尤其是一种风电机组导流罩前略小翼及具有此小翼的风电机组,属于风力发电装置领域。 [0001] The present invention relates to a wind turbine and a winglet having a winglet this, in particular the former is slightly smaller wind turbine blade and a shroud wind turbine having such winglet belongs to the field of wind power generation apparatus.

背景技术 Background technique

[0002]风电机组的叶片,为了满足强度要求及连接的稳固性,叶片接近叶根的部位为圆柱形,此部分无法借助风力产生旋转或旋转效率较低,导致整个机组的发电效率受到影响。 [0002] Wind turbine blades, in order to meet the strength requirements and stability of the connection, the blade near the root of the cylindrical portion, or in this section can not generate a rotating lower rotational efficiency, resulting in power generation efficiency of the entire unit is affected by the wind.

[0003]有鉴于此特提出本发明。 [0003] In view of the present invention proposed Japanese.

发明内容 SUMMARY

[0004]本发明要解决的技术问题在于克服现有技术的不足,提供一种风电机组导流罩前略小翼及具有此小翼的风电机组,能够提高风电机组的发电效率。 [0004] The present invention is to solve the technical problem to overcome the disadvantages of the prior art, there is provided a wind turbine blade and a shroud before smaller wind turbines having such winglet is possible to improve the power generation efficiency of the wind turbines.

[0005]为解决上述技术问题,本发明采用技术方案的基本构思是: [0005] In order to solve the above technical problem, the technical solution of the basic idea of ​​the invention is:

[0006]风电机组导流罩前略小翼,包括多个小翼及固定小翼的小翼导流罩,小翼导流罩的前端为弧面,小翼导流罩后端具有与风电机组叶片位置的叶片导流罩连接的连接部,多个小翼绕小翼导流罩的前后向中心轴线均匀分布。 [0006] before the wind turbine shroud slightly smaller wing, comprising a plurality of fixed winglet, and a winglet winglet shroud, the shroud winglet leading end of the arc, the winglet having a rear shroud wind turbine connecting the blade shroud portion connected to the vane position, a plurality of longitudinal winglet winglet about a uniform distribution of the shroud to the central axis.

[0007]进一步的,小翼的个数与需配合的风电机组的叶片个数相同。 [0007] Further, the required number of winglet with the same number of blades wind turbines.

[0008]进一步的,小翼能将风导流至风电机组的叶片的前缘。 [0008] Further, the winglet can wind to guide the leading edge of the wind turbine blade.

[0009]进一步的,小翼导流罩内腔中设置有将小翼导流罩与风电机组的风机轮毂相互连接的连接支架。 [0009] Further, the winglet shroud is provided with a lumen connector bracket winglet fan shroud and the hub of the wind turbine is interconnected.

[0010] —种具有导流罩前略小翼的风电机组,在导流罩上位于叶片前方的位置均匀设置有多个小翼,小翼能同叶片一起转动且能将吹至小翼的气流导流至位于小翼后方的风电机组叶片的前缘。 [0010] - Species wind turbine shroud having a smaller front wing, located in front of the blades in the shroud uniformly position a plurality of small wing, the winglet can rotate together airflow and can be blown to the blade with the winglet to guide the leading edge of a small wind turbine blade rear wing.

[0011]进一步的,小翼所附着的小翼导流罩与风电机组叶片位置的叶片导流罩相互配合构成一个外表面平滑的完整的导流罩。 [0011] Further, the attached winglet winglet blade shroud shroud wind turbine vane position cooperate with each other to form a smooth outer surface of the complete shroud.

[0012]进一步的,小翼的数量与叶片的数量相同,且任一小翼位于两相邻的叶片之间。 [0012] Further, the same number of blades winglet, a winglet is located between two adjacent blades and either.

[0013]进一步的,小翼导流罩为冠形,整体为梯形、上下底为圆形的连接支架安装在小翼导流罩冠形空间内,连接支架的上下底分别与小翼导流罩及风电机组的风机轮毂相互连接。 [0013] Further, the winglet shroud crown shape, a trapezoidal shape overall, the bottom is circular vertical connecting bracket is mounted in a shroud winglet crown space, the upper and lower end of each bracket is connected with the winglet guide fan hub cap and wind turbines connected to each other.

[0014]进一步的,小翼导流罩为相同的多部分配合组成形成一个冠形,各部分相邻处设置有内翻边,内翻边上设有螺栓孔,通过螺栓将小翼导流罩的多部分分别连接。 [0014] Further, the winglet shroud with the same multi-part form consisting of a crown, each provided with a portion adjacent to the flange, the inner flange is provided with bolt holes, the bolt by the winglet guide multi-part housing are connected.

[0015]进一步的,小翼的长度大于风电机组叶片的叶根圆柱形部位的长度。 Length [0015] Further, greater than the length of the small wing wind turbine blade root of the cylindrical portion.

[0016]采用上述技术方案后,本发明与现有技术相比具有以下有益效果。 [0016] With the above technical solution, the present invention and the prior art has the following advantages compared.

[0017]本发明风电机组导流罩前略小翼及具有此小翼的风电机组,其中,风电机组导流罩前略小翼包括多个小翼及固定小翼的小翼导流罩,小翼导流罩的前端为弧面,小翼导流罩后端具有与风电机组叶片位置的叶片导流罩连接的连接部,多个小翼绕小翼导流罩的前后向中心轴线均匀分布。 [0017] The present invention before the wind turbine blade and a shroud smaller wind turbines having such winglet, wherein the front shroud wind turbine comprises a plurality of smaller wing and winglet winglet winglet fixed shroud, winglet the front end of the shroud is cambered winglet shroud has a rear end connection portion connected to the blade shroud vane position of the wind turbine, a plurality of longitudinal winglet winglet about a uniform distribution of the shroud to the central axis. 一种具有导流罩前略小翼的风电机组,在导流罩上位于叶片前方的位置均匀设置有多个小翼,小翼能同叶片一起转动且能将吹至小翼的气流导流至位于小翼后方的风电机组叶片的前缘。 Front shroud having a smaller wind turbine blade, the shroud is located forward position of the blade a plurality of small uniformly wing, the winglet can rotate and can be blown to the gas stream flow to the same winglet with the blade the leading edge of a small wind turbine blade rear wing. 通过小翼的设置,使得小翼能弥补风电机组的叶片位于叶根部位的圆柱部分无法借助风力产生转动或者转动效率较差的缺陷,进而提高风电机组的发电效率。 Provided by the winglet, such winglets can compensate for wind turbine blades located in the cylindrical portion of the root portion of the wind generated by rotation or not rotation of poor efficiency defects, thereby improving the power generation efficiency of the wind turbines.

[0018]下面结合附图对本发明的具体实施方式作进一步详细的描述。 [0018] The following drawings of specific embodiments of the present invention will be described in further detail in conjunction.

附图说明 BRIEF DESCRIPTION

[0019]图1是本发明中一种具有导流罩前略小翼的风电机组的正视示意图。 [0019] FIG. 1 is a schematic front view of one of the present invention, the wind turbine shroud front wing having smaller.

[0020]图2是本发明在一种具有导流罩前略小翼的风电机组的侧视示意图。 [0020] FIG. 2 is a side view of the present invention In one wind turbine shroud front wing having smaller.

[0021]图3是本发明中一种具有导流罩前略小翼的风电机组的局部示意图。 [0021] FIG. 3 is a schematic view of the present invention, a topical front wind turbine blade shroud having a slightly smaller.

[0022]图4是本发明中风电机组导流罩前略小翼的侧视示意图。 [0022] FIG. 4 is a schematic side view of the front shroud smaller stroke turbine blade of the present invention.

[0023]图5是本发明中风电机组导流罩前略小翼的结构示意图。 [0023] FIG. 5 is a schematic diagram of a stroke turbine shroud of the present invention is slightly smaller wing.

[0024]图6是本发明中风电机组导流罩前略小翼的结构示意图。 [0024] FIG. 6 is a schematic diagram of a stroke turbine shroud of the present invention is slightly smaller wing.

[0025]图7是本发明中风电机组导流罩前略小翼的部分结构示意图。 [0025] FIG. 7 is a schematic diagram of a stroke moiety turbine shroud of the present invention is slightly smaller wing.

[0026]图8是连接支架的结构示意图。 [0026] FIG. 8 is a schematic view of the connection bracket.

[0027] 1、小翼2、小翼导流罩3、连接支架4、U形箍5、内翻边6、豁口7、孔8、风机轮毂9、叶片10、导流罩。 [0027] 1, 2 winglet winglet shroud 3, the connecting bracket 4, U-shaped bracket 5, the flange 6, the notch 7, aperture 8, 9 fan hub, the blades 10, shroud.

具体实施方式 detailed description

[0028] 实施例一 [0028] Example a

[0029]如图4-8所示,本发明风电机组导流罩前略小翼,其特征在于:包括多个小翼及固定小翼的小翼导流罩,小翼导流罩的前端为弧面,小翼导流罩后端具有与风电机组叶片位置的叶片导流罩连接的连接部,多个小翼绕小翼导流罩的前后向中心轴线均匀分布。 [0029] shown in Figure 4-8, the present invention before the wind turbine shroud slightly smaller wing, characterized by: a plurality of fixed winglet, and a winglet winglet shroud tip shroud is winglet cambered winglet shroud having a rear end connection portion connected to the blade shroud vane position of the wind turbine, a plurality of longitudinal winglet winglet about a uniform distribution of the shroud to the central axis.

[0030]小翼的个数与需配合的风电机组的叶片个数相同。 [0030] the same winglet with the required number and the number of wind turbine blades. 如图1所示,这样,任一小翼位于两相邻的叶片之间。 As shown, this, any one of the winglet is located between two adjacent blades 1. 小翼能将风导流至风电机组的叶片的前缘。 Winglet guide able to wind the leading edge of the wind turbine blade.

[0031]如图3所示,为了能使风电机组导流罩前略小翼固定在风电机组上,小翼导流罩内腔中设置有将小翼导流罩与风电机组的风机轮毂相互连接的连接支架。 [0031] As shown, in order to make the front shroud smaller wind turbines the wind turbine fixed wing, the winglet shroud 3 is provided with a lumen connected to the fan hub winglet wind turbine shroud and to each other the connection bracket.

[0032]本发明风电机组导流罩前略小翼包括多个小翼及固定小翼的小翼导流罩,小翼导流罩的前端为弧面,小翼导流罩后端具有与风电机组叶片位置的叶片导流罩连接的连接部,多个小翼绕小翼导流罩的前后向中心轴线均匀分布。 [0032] The present invention before the wind turbine shroud comprising a plurality of smaller wing and winglet winglet winglet fixed shroud, the shroud winglet leading end of the arc, the winglet having a rear shroud wind connecting the blade shroud portion of the vane position of the connection unit, a plurality of longitudinal winglet winglet about a uniform distribution of the shroud to the central axis. 将风电机组导流罩前略小翼安装在风电机组的风机轮毂上后,小翼能同叶片一起转动且能将吹至小翼的气流导流至位于小翼后方的风电机组叶片的前缘。 After the front wind turbine shroud smaller wings mounted on the fan hub wind turbine, the winglet can rotate together with the blades and can be blown to the gas flow deflector winglet to the leading edge of the wind turbine blade is located in a small rear wing. 通过小翼的设置,使得小翼能弥补风电机组的叶片位于叶根部位的圆柱部分无法借助风力产生转动或者转动效率较差的缺陷,进而提高风电机组的发电效率。 Provided by the winglet, such winglets can compensate for wind turbine blades located in the cylindrical portion of the root portion of the wind generated by rotation or not rotation of poor efficiency defects, thereby improving the power generation efficiency of the wind turbines.

[0033] 实施例二 [0033] Second Embodiment

[0034]本发明一种具有导流罩前略小翼的风电机组,在导流罩上位于叶片前方的位置均匀设置有多个小翼,小翼能同叶片一起转动且能将吹至小翼的气流导流至位于小翼后方的风电机组叶片的前缘。 [0034] The present invention having a smaller front shroud wind turbine blade, the shroud is located forward position of the blade a plurality of small uniformly wing, the winglet can rotate together with the blades and can be blown to the winglet air flow to the wind turbine blade leading edge at the rear of the small wing.

[0035]小翼的长度大于风电机组叶片的叶根圆柱形部位的长度。 Length [0035] is greater than the length of the winglet wind turbine blade root of the cylindrical portion.

[0036]小翼的数量与叶片的数量相同,且任一小翼位于两相邻的叶片之间。 [0036] with the same number of blades winglet, a winglet is located between two adjacent blades and either.

[0037]小翼所附着的小翼导流罩与风电机组叶片位置的叶片导流罩相互配合构成一个外表面平滑的完整的导流罩。 [0037] winglet attached winglet blade shroud shroud wind turbine vane position cooperate with each other to form a smooth outer surface of the complete shroud.

[0038]结合图1、2、4_7所示,小翼导流罩为相同的多部分配合组成形成一个冠形,各部分相邻处设置有内翻边,内翻边上设有螺栓孔,通过螺栓将小翼导流罩的多部分分别连接。 [0038] As shown in conjunction with FIG. 1,2,4_7 winglet shroud with the same multi-part form consisting of a crown, each provided at a portion adjacent to the inner flange, an inner flange is provided with bolt holes, the bolts are connected by a plurality of shroud winglet portion.

[0039]小翼导流罩为冠形,在冠形腔内设有连接支架,整体为梯形、上下底为圆形的连接支架的上下底分别与小翼导流罩及风电机组的风机轮毂相互连接。 [0039] Shroud winglet shaped crown, the crown is provided with connecting brackets chamber, overall trapezoidal shape, the upper and lower end of the vertical circular bottom bracket respectively connected to blower wheel winglet shroud and the hub of the wind turbine connected to each other.

[0040]为了能使连接支架与小翼导流罩及风电机组的风机轮毂连接更稳固,连接支架的上下底设置有圆环,上下底的圆环之间通过连接筋连接。 [0040] In order to enable the blower wheel is connected to the bracket and the winglet shroud wind turbine hub connecting more stable, the upper and lower end of the connecting bracket is provided with a ring, connected by a connecting rib between the upper and lower end of the ring. 连接支架的上底圆环与小翼导流罩的内壁接触,并通过多个U形箍将连接支架的上底圆环固定在小翼导流罩的内壁。 Contact the inner wall of the connecting bracket and the bottom ring winglet shroud and connecting a plurality of U-shaped bracket through cuff on a bottom ring fixed to the inner wall of the shroud winglet. 由于小翼导流罩为相同的多部分配合组成形成一个冠形,各部分相邻处设置有内翻边,故在内翻边上设有豁口6供连接支架的上底圆环穿过。 Since the winglet shroud with the same multi-part form consisting of a crown, each provided with a portion adjacent the flange, so that the inner cutout 6 is provided for connecting the bottom bracket through the annular flange.

[0041] 在连接支架的下底圆环上沿其周向均匀设有多个通孔,通过螺钉穿过通孔与风电机组的风机轮毂连接将连接支架固定在风电机组的风机轮毂上,进而将整个导流罩前略小翼固定在风电机组的风机轮毂上。 [0041] along the lower end of the annular connection bracket which is circumferentially uniform is provided with a plurality of through-holes, the fan hub connected to the through holes of wind turbines connecting bracket to the fan hub wind turbine by means of screws passing through, and then the entire front shroud slightly smaller wing turbine wheel is fixed to the wind turbine.

[0042]在连接支架的下底圆环上沿其周向均匀设有多个通孔,可以将连接支架旋转选择合适的通孔安装螺钉以与风电机组的风机轮毂连接,从而使每个小翼能固定在两个相邻叶片之间的合适位置,使小翼与叶片的相对位置满足能将吹至小翼的气流导流至位于小翼后方的风电机组叶片的前缘的要求。 [0042] along the circumference of the ring on the bottom of the connection bracket is provided with a plurality of through-holes uniformly, can select the appropriate rotation of the connecting bracket mounting screws through holes in the fan hub is connected to the wind turbine, such that each small the two wings can be fixed to the wind turbine blade is located rearward of the small wing leading edge requires an appropriate position between the adjacent blades, and the relative position of the winglet to the blade designed to move the gas flow deflector blow winglet.

[0043]本发明一种具有导流罩前略小翼的风电机组,在导流罩上位于叶片前方的位置均匀设置有多个小翼,小翼能同叶片一起转动且能将吹至小翼的气流导流至位于小翼后方的风电机组叶片的前缘。 [0043] The present invention having a smaller front shroud wind turbine blade, the shroud is located forward position of the blade a plurality of small uniformly wing, the winglet can rotate together with the blades and can be blown to the winglet air flow to the wind turbine blade leading edge at the rear of the small wing. 通过小翼的设置,使得小翼能弥补风电机组的叶片位于叶根部位的圆柱部分无法借助风力产生转动或者转动效率较差的缺陷,进而提高风电机组的发电效率。 Provided by the winglet, such winglets can compensate for wind turbine blades located in the cylindrical portion of the root portion of the wind generated by rotation or not rotation of poor efficiency defects, thereby improving the power generation efficiency of the wind turbines.

[0044]上述实施例中的实施方案可以进一步组合或者替换,且实施例仅仅是对本发明的优选实施例进行描述,并非对本发明的构思和范围进行限定,在不脱离本发明设计思想的前提下,本领域中专业技术人员对本发明的技术方案作出的各种变化和改进,均属于本发明的保护范围。 [0044] The embodiment of the above embodiments may be further combined or alternatively, and embodiments are merely embodiments described preferred embodiment of the invention, not to the spirit and scope of the present invention are defined, without departing from the design of the present invention is the premise various changes technicians in the art to make technical solution of the present invention and modifications belong to the scope of the present invention.

Claims (10)

  1. 1.风电机组导流罩前略小翼,其特征在于:包括多个小翼及固定小翼的小翼导流罩, 小翼导流罩的前端为弧面,小翼导流罩后端具有与风电机组叶片位置的叶片导流罩连接的连接部,多个小翼绕小翼导流罩的前后向中心轴线均匀分布。 1. The wind turbine shroud smaller front wing, characterized by: a plurality of fixed winglet, and a winglet winglet shroud, the shroud winglet leading end of the arc, a rear end having a shroud winglet connection portion of the blade shroud vane position of the wind turbine, a plurality of longitudinal winglet winglet about the uniform distribution of the shroud to the central axis.
  2. 2.根据权利要求1所述的风电机组导流罩前略小翼,其特征在于:小翼的个数与需配合的风电机组的叶片个数相同。 The wind turbine shroud smaller front wing according to claim 1, wherein: the same number with the number of blades of the wind turbine with the winglet required.
  3. 3.根据权利要求1所述的风电机组导流罩前略小翼,其特征在于:小翼能将风导流至风电机组的叶片的前缘。 3. The wind turbine as claimed in claim smaller wing of the front shroud 1, wherein: the wind winglet able to guide the leading edge of the wind turbine blade.
  4. 4.根据权利要求1所述的风电机组导流罩前略小翼,其特征在于:小翼导流罩内腔中设置有将小翼导流罩与风电机组的风机轮毂相互连接的连接支架。 The wind turbine shroud smaller front wing according to claim 1, wherein: the lumen winglet shroud is provided with a bracket connected to the fan hub winglet wind turbine shroud and interconnected.
  5. 5.—种具有导流罩前略小翼的风电机组,其特征在于:在导流罩上位于叶片前方的位置均匀设置有多个小翼,小翼能同叶片一起转动且能将吹至小翼的气流导流至位于小翼后方的风电机组叶片的前缘。 5.- kinds of wind turbine shroud having a smaller front wing, characterized in that: in front of the blades in the shroud uniformly position a plurality of small wing, the winglet can rotate together with the blades and can be blown to a small airflow deflector wing to the leading edge of a small wind turbine blade rear wing.
  6. 6.根据权利要求5所述的一种具有导流罩前略小翼的风电机组,其特征在于:小翼所附着的小翼导流罩与风电机组叶片位置的叶片导流罩相互配合构成一个外表面平滑的完整的导流罩。 6. According to one of claim 5 having a smaller front shroud wind turbine blade, wherein: winglet attached winglet blade shroud shroud wind turbine vane position complement each other to form a the complete outer surface of the shroud smooth.
  7. 7.根据权利要求5所述的一种具有导流罩前略小翼的风电机组,其特征在于:小翼的数量与叶片的数量相同,且任一小翼位于两相邻的叶片之间。 7. A method according to claim 5 having a smaller front shroud wind turbine blade, wherein: the same number of blades winglet, a winglet located between two adjacent blades and either.
  8. 8.根据权利要求6所述的一种具有导流罩前略小翼的风电机组,其特征在于:小翼导流罩为冠形,整体为梯形、上下底为圆形的连接支架安装在小翼导流罩冠形空间内,连接支架的上下底分别与小翼导流罩及风电机组的风机轮毂相互连接。 According to claim 6, wherein one of the front shroud having a smaller wind turbine blade, wherein: the shroud winglet crown shape, a trapezoidal shape overall, the bottom is circular vertical connecting bracket is mounted in a small shroud inner wings crown space, the upper and lower end of the connecting bracket are interconnected with the fan hub and the shroud winglet wind turbine.
  9. 9.根据权利要求6所述的一种具有导流罩前略小翼的风电机组,其特征在于:小翼导流罩为相同的多部分配合组成形成一个冠形,各部分相邻处设置有内翻边,内翻边上设有螺栓孔,通过螺栓将小翼导流罩的多部分分别连接。 According to claim 6, wherein one of the front shroud having a smaller wind turbine blade, wherein: winglet shroud with the same multi-part form consisting of a crown, each provided with a portion adjacent the inner flange, an inner flange is provided with bolt holes, the bolt are connected by multi-part winglet shroud.
  10. 10.根据权利要求5-9任一项所述的一种具有导流罩前略小翼的风电机组,其特征在于:小翼的长度大于风电机组叶片的叶根圆柱形部位的长度。 The length of the cylindrical portion of the blade root is greater than the length of the winglet wind turbine blade: according to any of claims 5-9 having one of the smaller front shroud wind turbine blade, wherein.
CN 201610391040 2016-06-03 2016-06-03 Before the wind turbine blade and a shroud smaller wind turbines having such winglet CN105971817B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87214619U (en) * 1987-10-28 1988-10-26 金丹 Lift-resistance force wind-motor
US8011886B2 (en) * 2009-06-30 2011-09-06 General Electric Company Method and apparatus for increasing lift on wind turbine blade
CA2810759A1 (en) * 2012-04-03 2013-10-03 Siemens Aktiengesellschaft Flatback slat for wind turbine
CN103939279A (en) * 2014-04-30 2014-07-23 哈尔滨工业大学 Double-duct horizontal shaft breeze wind turbine
CN205036501U (en) * 2015-10-16 2016-02-17 大唐巴彦淖尔风力发电有限责任公司 Flow guide device of fan

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87214619U (en) * 1987-10-28 1988-10-26 金丹 Lift-resistance force wind-motor
US8011886B2 (en) * 2009-06-30 2011-09-06 General Electric Company Method and apparatus for increasing lift on wind turbine blade
CA2810759A1 (en) * 2012-04-03 2013-10-03 Siemens Aktiengesellschaft Flatback slat for wind turbine
CN103939279A (en) * 2014-04-30 2014-07-23 哈尔滨工业大学 Double-duct horizontal shaft breeze wind turbine
CN205036501U (en) * 2015-10-16 2016-02-17 大唐巴彦淖尔风力发电有限责任公司 Flow guide device of fan

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