WO2017097229A1 - 高效利用低速流体的叶片及其应用 - Google Patents
高效利用低速流体的叶片及其应用 Download PDFInfo
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- WO2017097229A1 WO2017097229A1 PCT/CN2016/109064 CN2016109064W WO2017097229A1 WO 2017097229 A1 WO2017097229 A1 WO 2017097229A1 CN 2016109064 W CN2016109064 W CN 2016109064W WO 2017097229 A1 WO2017097229 A1 WO 2017097229A1
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- blade
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- sheet member
- wing member
- sheet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- 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
Definitions
- the second sheet member further includes an upper portion coupled to one end of the middle portion, and the other end of the upper portion is coupled or attached to the concave surface of the first sheet member.
- the lower section of the second sheet member is connected to the first sheet member by a second connecting member, and the second connecting member is connected to the second sheet member and the first sheet member. A smooth transition.
- the first sheet member is integrally formed with the second sheet member to which it is attached.
- the fifth sheet member is attached to an end of the head wing member with an extension portion, the extension portion being disposed along a lower contour of the second airfoil.
- the invention improves the blade structure of the blade so that the Cp value of the blade of the invention is much higher than the single wing blade at an average wind speed of 2-13 m/s, and is not lower than the multi-wing collecting blade of the same outer contour, the blade performance Guaranteed;
- the use of sheet-like parts instead of the original fins can transform the original blade airfoil into a sheet-like part, which not only reduces the manufacturing mold, but also reduces the size, processing difficulty and cost of the mold.
- It is also possible to apply a high-efficiency molding process such as rolling, stamping, extrusion, etc., thereby significantly reducing the manufacturing cost of the blade, which can be reduced by 20-50% (the larger the stand-alone capacity, the greater the reduction).
- the blades of the present invention can be manufactured in parts, which makes it possible to assemble the blades at the wind turbine installation site, thereby greatly reducing the transportation cost of the large and medium blades.
- FIG. 1a to 1c are schematic structural views of a first embodiment of a blade for efficiently utilizing low-speed fluid according to the present invention
- FIG. 9 is a schematic structural view of a ninth embodiment of a blade for efficiently utilizing low-speed fluid according to the present invention.
- 10a to 10c are schematic structural views of a tenth embodiment of a blade for efficiently utilizing low-speed fluid according to the present invention
- FIG. 12 is a schematic view showing an outer contour envelope, a suction surface S up , and a pressure surface S low on a blade section of the present invention for efficiently utilizing low-speed fluid;
- 15a to 15b are schematic views of the blade profile of the embodiment shown in Fig. 3a according to the X, Y airfoil specifications;
- the blade of the present invention is represented by the general formula FW(n+m)nm, wherein n represents the number of wing members in the form of a sheet (including: a head piece having an arc-shaped sheet shape, a curved structure, a double-piece single-angular structure) , like "S"-shaped structure, the middle wing of a "C”-shaped structure), m represents the number of wing members in the form of a curved body or a solid block (including: the use of a " ⁇ "-like structure, the middle of the airfoil-like structure Wings, airfoil structure, "duck mouth” structure, tail flaps of "upturned duckbill” structure, solid block-shaped middle/tail wing), (n+m) is the sum of n and m values .
- the blade represented by FW(1+m)1B is composed of one sheet-like wing member C1 and m curved body members B, and the middle wing member adopts a curved body B like a " ⁇ "-shaped structure, and There is logical recursion in the configuration, FW31B shown in Fig. 6a, Fig. 6b, Fig. 6d, Fig. 6h, Fig. 61, Fig. 8a, Fig. 5a, Fig. 6e, Fig. 6f, Fig. 6g, Fig. 6i, Fig. 6j, Fig. 6W, Fig. 6m, Fig. 6n, Fig. 6o, Fig. 8b, Fig. 8c, Fig. 8d, FW41B, FW51B and FW61B are the actuals of such blades. example.
- Fig. 14 shows a suction surface S up and a pressure surface S low indicated by a broken line at the leading edge point a and the trailing edge point b of the FW211, FW4S1, FW312, and FW41B blades of the present invention.
- the convex surface of the head wing member, the partial upper contour of the main wing member, the outer contour of the trailing edge point and the lower contour are in a second airfoil shape, and the leading edge point of the second airfoil is located on the convex contour of the head wing member.
- the contour surface formed by the upper contour of the second airfoil is the suction surface of the blade, and the contour surface formed by the lower contour is the pressure surface of the blade.
- the lower portion of the second sheet member extends toward the head wing member to form a middle wing member similar to the "S" shape
- the middle wing member includes at least two first sheet members, and at least two first sheet members are sequentially Arranged between the head wing member and the tail wing member, the second sheet member is coupled to the first sheet member adjacent the tail wing member.
- first connecting members N9, N11 and N13 between the middle portion of the second sheet member and the concave surface of the first sheet member.
- the seventh group of embodiments is similar to the sixth group of embodiments. As shown in Figs. 7a to 7c, the middle and upper sections of the second sheet member have a continuous curved section, and the middle and upper sections of the second sheet member.
- the curved convex surface faces the concave surface of the first sheet member to form a middle wing member of the airfoil-like structure.
- the tail flaps are of solid construction.
- the twelfth set of embodiments is evolved on the basis of the eleventh set of embodiments, as shown in Fig. 11a, the difference being that the end of the fifth piece E4 adjacent to the head wing is connected with an extension R1, the extension Along the lower profile of the second airfoil, the end of the fourth flap E3 adjacent to the head flap is joined with a fitting section R2 that conforms to the extension to form a "duck-billed" type structure.
- FIG. 18 is a comparison diagram of each graph of FIG. 18.
- the six kinds of blades are respectively: three kinds of FW41BL, FW31BL, FW312L blades of the present invention designed with one LF airfoil as the outer contour of the blade, and a three-wing collecting blade G3d2L as the above four blade outer contour specifications.
- the blades of the present invention Not less than G3d2L blades, but the cost of the blades of the present invention is reduced by at least 20% compared to collector blades such as G3d2L, and the cost performance is higher.
- the invention effectively utilizes a method for manufacturing a blade of a low-speed fluid, and the approximate process includes:
- the sheet member is used to form a head wing member, a middle wing member or a tail wing member.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
Description
Claims (40)
- 一种高效利用低速流体的叶片,包括主翼构件,所述主翼构件具有流线型截面,所述截面的外轮廓呈第一翼型,其特征在于,所述叶片还包括头部翼件,所述头部翼件为片状,头部翼件的截面为一侧为凸面,另一侧为凹面的弧形,所述头部翼件设置于主翼构件前缘点的斜上侧,头部翼件的凹面朝向主翼构件,头部翼件与主翼构件之间具有第一通气空间。
- 根据权利要求1所述的高效利用低速流体的叶片,其特征在于,所述头部翼件的凸面、主翼构件的部分上轮廓、后缘点和下轮廓所围成的外轮廓呈第二翼型,所述第二翼型的前缘点位于头部翼件的凸面轮廓上。
- 根据权利要求2所述的高效利用低速流体的叶片,其特征在于,所述头部翼件靠近主翼构件下轮廓的一端与主翼构件之间的间隙为所述第一通气空间的进气口,所述头部翼件靠近主翼构件上轮廓的一端与主翼构件之间的间隙为所述第一通气空间的出气口,所述第一通气空间的进气口宽度大于出气口宽度。
- 根据权利要求3所述的高效利用低速流体的叶片,其特征在于,所述第一通气空间出气口的出气方向沿着主翼构件上轮廓对应位置处的切线方向。
- 根据权利要求2至4任一所述的高效利用低速流体的叶片,其特征在于,所述主翼构件包括至少一个中部翼件和一个尾部翼件,所述中部翼件位于头部翼件和尾部翼件之间,相邻的所述中部翼件之间及其与尾部翼件之间分别设置有连通第二翼型上轮廓与下轮廓之间的第二通气空间,所述第二通气空间靠近第二翼型下轮廓的开口为第二通气空间的进气口,所述第二通气空间靠近第二翼型上轮廓的开口为第二通气空间的出气口,所述第二通气空间的进气口宽度大于出气口宽度。
- 根据权利要求5所述的高效利用低速流体的叶片,其特征在于,所述第二通气空间出气口的出气方向沿着后邻中部翼件或尾部翼件上轮廓对应位置处的切线方向。
- 根据权利要求5所述的高效利用低速流体的叶片,其特征在于,至少一个所述中部翼件具有片状部件,至少部分片状部件沿着第二翼型的上轮廓设置。
- 根据权利要求7所述的高效利用低速流体的叶片,其特征在于,所述中部翼件包括第一片状件,所述第一片状件的截面为一侧为凸面,另一侧为凹面的弧形,所述第一片状件的弧形凸面靠近头部翼件,第一片状件的一端靠近第二翼型的下轮廓,另一端位于第二翼型的上轮廓。
- 根据权利要求8所述的高效利用低速流体的叶片,其特征在于,所述中部翼件还包括第二片状件,所述第二片状件的一端与第一片状件靠近第二翼型下轮廓的一端相连接,第二片状件包括沿着第二翼型的下轮廓设置的下段。
- 根据权利要求9所述的高效利用低速流体的叶片,其特征在于,所述第二片状件的下段朝向头部翼件延伸,所述中部翼件至少为两个,至少两个所述中部翼件依次排列在头部翼件和尾部翼件之间,所述第二片状件与靠近尾部翼件的中部翼件中的第一片状件相连接。
- 根据权利要求9所述的高效利用低速流体的叶片,其特征在于,所述第二片状件的下段朝向尾部翼件延伸。
- 根据权利要求10或11所述的高效利用低速流体的叶片,其特征在于,所述第一片状件与其相连的第二片状件一体成型,且第一片状件与第二片状件相交处圆滑过渡。
- 根据权利要求11所述的高效利用低速流体的叶片,其特征在于,所述第二片状件还包括与下段一端连接的中段,所述中段朝向与该第二片状件相连接的第一片状件弯折。
- 根据权利要求13所述的高效利用低速流体的叶片,其特征在于,所述第二片状件的下段与中段之间的弯折角为钝角。
- 根据权利要求13所述的高效利用低速流体的叶片,其特征在于,所述第二片状件还包括与中段一端连接的上段,所述上段的另一端与第一片状件的凹面相连接或贴合。
- 根据权利要求14或15所述的高效利用低速流体的叶片,其特征在于,第二片状件的中段与第一片状件的凹面之间设置有第一连接件。
- 根据权利要求15所述的高效利用低速流体的叶片,其特征在于,所述第二片状件的中段和上段的截面为一个连续的弧形,第二片状件的中段和上段的弧形凸面朝向第一片状件的凹面。
- 根据权利要求13至15任一所述的高效利用低速流体的叶片,其特征在于,所述第二片状件的下段通过第二连接件与第一片状件相连接,所述第二连接件与第二片状件和第一片状件的连接处圆滑过渡。
- 根据权利要求13至15任一所述的高效利用低速流体的叶片,其特征在于,所述第一片状件与第二片状件的下段连接处圆滑过渡,所述第一片状件与第二片状件的下段连接处的内侧设置有第一加强件。
- 根据权利要求13至15或17任一所述的高效利用低速流体的叶片,其特征在于,所述第一片状件与其相连的第二片状件一体成型。
- 根据权利要求15所述的高效利用低速流体的叶片,其特征在于,所述第一片状件与第二片状件连接形成闭合空腔,所述闭合空腔内设置有填充体。
- 根据权利要求21所述的高效利用低速流体的叶片,其特征在于,所述第一片状件、第二片状件和填充体一体成型形成实心结构的中部翼件。
- 根据权利要求8所述的高效利用低速流体的叶片,其特征在于,所述中部翼件还包括第三片状件,所述第三片状件位于第一片状件的凹面与尾部翼件之间,第三片状件包括下段和上段,所述第三片状件的下段沿着第二翼型的下轮廓设置,所述第三片状件上段连接在下段靠近尾部翼件的一端,且朝向第一片状件弯折。
- 根据权利要求23所述的高效利用低速流体的叶片,其特征在于,所述第三片状件的下段与上段一体成型,且下段与上段的相交处圆滑过渡。
- 根据权利要求5所述的高效利用低速流体的叶片,其特征在于,所述中部翼件包括实心翼构件,所述实心翼构件的截面具有靠近头部翼件的凸面、靠近尾部翼件的凹面和沿着第二翼型下轮廓设置的下侧面,所述下侧面分别与实心翼构件的凸面和凹面的下端相接,所述实心翼构件的凸面和凹面的上端相接,实心翼构件的凸面至少部分沿着第二翼型的上轮廓设置。
- 根据权利要求25所述的高效利用低速流体的叶片,其特征在于,所述实心翼构件的下侧面与凸面和凹面相接处圆滑过渡。
- 根据权利要求5所述的高效利用低速流体的叶片,其特征在于,所述尾部翼件具有流线型截面,所述截面的外轮廓呈第三翼型,至少部分所述第三翼型的下轮廓沿着第二翼型的下轮廓设置,至少部分所述第三翼型的上轮廓沿着第二翼型的上轮廓设置,所述第三翼型的后缘点与第二翼型的后缘点重合。
- 根据权利要求27所述的高效利用低速流体的叶片,其特征在于,所述尾部翼件为实心结构。
- 根据权利要求27所述的高效利用低速流体的叶片,其特征在于,所述尾部翼件包括沿其上轮廓设置的第四片状件和沿其下轮廓设置的第五片状件,所述第四片状件的两端分别与第五片状件的两端相连接。
- 根据权利要求29所述的高效利用低速流体的叶片,其特征在于,所述第四片状件的两端分别通过第三连接件和第四连接件与第五片状件的两端相连接。
- 根据权利要求29所述的高效利用低速流体的叶片,其特征在于,所述第四片状件和 第五片状件之间设置有至少一个第二加强件。
- 根据权利要求29所述的高效利用低速流体的叶片,其特征在于,所述第四片状件和第五片状件一体成型。
- 根据权利要求29所述的高效利用低速流体的叶片,其特征在于,所述第五片状件靠近头部翼件的一端连接有延伸段,所述延伸段沿着第二翼型的下轮廓设置。
- 根据权利要求33所述的高效利用低速流体的叶片,其特征在于,所述第四片状件靠近头部翼件的一端连接有与所述延伸段相贴合的贴合段。
- 根据权利要求34所述的高效利用低速流体的叶片,其特征在于,所述贴合段和第四片状件一体成型。
- 根据权利要求33所述的高效利用低速流体的叶片,其特征在于,所述延伸段靠近头部翼件的一端连接有朝向第二翼型的上轮廓弯折的弯折段。
- 根据权利要求36所述的高效利用低速流体的叶片,其特征在于,所述弯折段、延伸段和第五片状件一体成型。
- 根据权利要求37所述的高效利用低速流体的叶片,其特征在于,所述第四片状件和第五片状件一体成型。
- 一种高效利用低速流体的叶片,具有流线形截面,所述截面由前缘点、后缘点、以及连接前缘点和后缘点的上轮廓和下轮廓所围成,所述叶片上外缘轮廓面为叶片的吸力面,所述上轮廓为吸力面与截面的交界线;所述叶片下外缘轮廓面为叶片的压力面,所述下轮廓为压力面与截面的交界线;该叶片由一组翼构件组成,相邻翼构件之间留有通气空间;其特征是,所述翼构件包括一个头部翼件和一个尾部翼件,或者包括一个头部翼件、至少一个中部翼件和一个尾部翼件;所述头部翼件靠近前缘点、且位于前缘点的斜上侧,所述尾部翼件靠近后缘点,所述中部翼件位于头部翼件和尾部翼件之间;所述头部翼件呈一侧为凸面、另一侧为凹面的弧形片状,所述头部翼件的凸面背离后缘点;所述叶片截面的上轮廓由头部翼件的凸面、以及尾部翼件的上部或部分上部共同构成,或者由头部翼件的凸面、以及中部翼件和尾部翼件的上部或部分上部共同构成;所述叶片截面的下轮廓由尾部翼件的下部或部分下部构成,或者由中部翼件和尾部翼件下部或部分下部共同构成。
- 一种如权利要求1至39任一所述高效利用低速流体的叶片作为垂直轴风力机叶片、利用潮汐流发电的垂直轴水力机叶片、水平轴风力机叶片、水轮机叶片、汽轮机叶片或推进器叶片的应用。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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KR1020187018741A KR102056396B1 (ko) | 2015-12-10 | 2016-12-08 | 저속 유체를 효율적으로 이용할 수 있는 블레이드와 그것의 적용 |
EP16872418.5A EP3388663B1 (en) | 2015-12-10 | 2016-12-08 | Blade capable of efficiently utilizing low velocity fluid, and application of blade |
JP2018529973A JP6609705B2 (ja) | 2015-12-10 | 2016-12-08 | 低速流体を効率的に利用するブレード及びその応用 |
CN201680069707.5A CN108700025B (zh) | 2015-12-10 | 2016-12-08 | 高效利用低速流体的叶片及其应用 |
US16/003,132 US10808678B2 (en) | 2015-12-10 | 2018-06-08 | Blade capable of efficiently utilizing low-velocity fluid and application thereof |
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CN201510907637 | 2015-12-10 | ||
CN201510907637.3 | 2015-12-10 | ||
CN201610842522.5A CN106870277A (zh) | 2015-12-10 | 2016-09-22 | 高效利用低速流体的叶片及其制造方法 |
CN201610842522.5 | 2016-09-22 |
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US16/003,132 Continuation US10808678B2 (en) | 2015-12-10 | 2018-06-08 | Blade capable of efficiently utilizing low-velocity fluid and application thereof |
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