CN101023264B - 用于水下涡轮发电机的流增强结构 - Google Patents

用于水下涡轮发电机的流增强结构 Download PDF

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CN101023264B
CN101023264B CN2005800313363A CN200580031336A CN101023264B CN 101023264 B CN101023264 B CN 101023264B CN 2005800313363 A CN2005800313363 A CN 2005800313363A CN 200580031336 A CN200580031336 A CN 200580031336A CN 101023264 B CN101023264 B CN 101023264B
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拉塞尔·斯托泽思
以马利·格里勒思
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Clean Current Power Systems Inc
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03BMACHINES OR ENGINES FOR LIQUIDS
    • F03B17/00Other machines or engines
    • F03B17/06Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
    • F03B17/061Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially in flow direction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03BMACHINES OR ENGINES FOR LIQUIDS
    • F03B3/00Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/04Machines or engines of reaction type; Parts or details peculiar thereto with substantially axial flow throughout rotors, e.g. propeller turbines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03BMACHINES OR ENGINES FOR LIQUIDS
    • F03B3/00Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/12Blades; Blade-carrying rotors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03BMACHINES OR ENGINES FOR LIQUIDS
    • F03B3/00Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/16Stators
    • F03B3/18Stator blades; Guide conduits or vanes, e.g. adjustable
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00Components
    • F05B2240/10Stators
    • F05B2240/12Fluid guiding means, e.g. vanes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00Components
    • F05B2240/10Stators
    • F05B2240/13Stators to collect or cause flow towards or away from turbines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00Components
    • F05B2240/10Stators
    • F05B2240/14Casings, housings, nacelles, gondels or the like, protecting or supporting assemblies there within
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00Components
    • F05B2240/90Mounting on supporting structures or systems
    • F05B2240/97Mounting on supporting structures or systems on a submerged structure
    • 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
    • Y02E10/20Hydro energy
    • 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
    • Y02E10/30Energy from the sea, e.g. using wave energy or salinity gradient
    • 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00Rotary kinetic fluid motors or pumps
    • Y10S415/905Natural fluid current motor
    • Y10S415/908Axial flow runner

Abstract

本发明披露了一种用于水下涡轮发电机(10)的流增强改进,其中纵向孔(240)布置在中心区域(26)中,典型地发电机(10)的毂(20)中,并且第二、增强器管(41),优选刚性的,被围绕外管(40)或者单元的外壳布置,以产生狭缝(200)区域。狭缝(200)和中空毂(20)产生平稳的层流流体流区域。毂(20)或者中心环和增强器(41)和外管(40)的前缘是椭圆的以增强结构的流体动力。

Description

用于水下涡轮发电机的流增强结构
技术领域
本发明大致涉及一种用于流体动力发电的水下管道涡轮机。更具体地,本发明披露了一种限定狭缝和穿过涡轮机的毂的纵向孔的双增强器管结构,所述结构增强水流。 
已知用于发电的双向、轮缘发电、管式水下涡轮机,诸如授予戴维斯等人的本申请人的PCT申请PCT/CA02/01413。存在改进流动特性、并因此提高该设计效率的要求。已知固定的增强器用以增加通过涡轮机的流。 
授予木通(Mouton)等人的美国专利4,219,303披露了一种在柔性外喷嘴内的刚性内主喷嘴,所述柔性外喷嘴与主喷嘴略微地重叠,这在喷嘴之间产生空间以用于单方向的流。 
授予Vauthier的美国专利6,406,251B1披露了一种枢转翼系统,所述枢转翼在接受双向流的水轮机的外表面上。然而,该系统是机械复杂的。 
Griffiths大学工程学院B·Kirke的Developments in Ducted Water Current Turbines中讨论了具有单个管的传统的、单向流涡轮机的管中的狭缝的理论优势。 
还已知具有穿过水轮发电机的中心空间。授予Matheisel的美国专利2,509,442披露了一种没有毂或叶片的根部分的管式螺旋桨涡轮机,所述涡轮机倾向于过度偏转、振动和高循环疲劳,尤其当没有内支撑环时,叶片从外壳朝单元的中心伸出悬臂。 
授予Williams的美国专利RE38,336E(重新公布的5,592,816)披露了一种水力发电涡轮机,其中由提出的叶片环绕的不受限制的流的中心敞开区域减轻了水流的紊流。也是授予Williams的美国专利6,648,589B2 披露了一种水力发电涡轮机,其中由叶片围绕的未限制的流的中心敞开区域有助于流过单个叶片的水的速度的增加并消除在传统的毂式水力发电涡轮中的毂后面产生的紊流。Williams的专利采用复杂的水力和机械驱动发电机,其中单向涡轮叶片配置不具有管和水力结构以通过有效的方式引导水流。Williams的专利不在毂处装备一组轴承以增强单元的结构整体性并减少叶片偏转。 
本发明满足了制造一种结构和机械简单并且不昂贵的流增强设计的需要,所述流增强设计增加了水流,为海洋生物和碎片提供了旁路,并减小了单元的环境影响,减小了振动和流体动力阻力,并提高了水下管式涡轮机的运行效率。 
发明内容
本发明的目的是实现一种改进的水力涡轮发电机和流增强的方法,其中改进包括在管或者外壳与增强器装置(augmentor device)之间的狭缝,其中所述增强装置围绕管布置。增强器装置最佳地具有面积大致相似的入口和出口和更窄的中心喉部分,由此提高涡轮的效率。所披露的具体喉面积、狭缝面积和叶片面积与入口面积的比进一步使涡轮的效率最优化。 
增强器(augmentor)可以是部分的或者全部的第二管,所述第二管围绕第一管的大致全部的外表面布置,由此产生双管结构。 
本发明的另一目的是提供一种轴对称的增强器,所述增强器具有流体动力轮廓的或流线型的前缘,由此使经过入口和出口的紊流水流最小并最佳地在双向水流中运行。双管结构可以涂有防污着涂层并可以包括浮性材料,由此实现更大的噪音抑制,确保最小的环境影响,并提供抗腐蚀性和高润滑性。 
本发明的另一目的是提供在涡轮中的一种流增强结构,该流增强结构包括纵向孔,在毂中的所述纵向孔大致沿着涡轮的纵向轴线,并且所述毂具有特定形状、结构和材料特性,由此提高涡轮的效率。本发明披露了孔面积与叶片面积的特定比率。结合毂的流特性,孔使涡轮对于海洋生物安全。 
附图说明
现在将参照附图描述本发明的装置和方法,其中: 
图1是根据本发明的、具有狭缝和中空毂流增强结构的双增强器管式水下涡轮发电机的等距视图; 
图2是根据本发明的、具有狭缝和中空毂流增强结构的双增强器管式水下涡轮发电机的主视图; 
图3是根据本发明的、具有狭缝和中空毂流增强结构的双增强器管式水下涡轮发电机的剖视透视图; 
图4是根据本发明的限定了狭缝和孔并显示了流的流线的毂和外管和增强器管的侧视图; 
图5是中空毂和外管和增强器管的前缘的侧视图; 
图6是根据本发明的变化的双增强器管敞开的狭缝的侧视图; 
图7是根据本发明的变化的圆柱形双增强器管狭缝的侧视图。 
具体实施方式
参照图1,显示了优选实施例的具有狭缝200和中空毂240流增强结构的双增强器管式水下涡轮发电机10的等距视图。在优选实施例中,水下管式涡轮机10是授予Davis等人的本申请人的早期发明PCT/CA02/01413的主题中所披露的类型,本发明的改进针对中空毂20的设计,以及环绕外管40布置的第二增强器管41,并且在两个管43之间具有狭缝200,这些一起增强了水流100并提高了涡轮发电机10的效率。双增强器管结构43是纵向对称的结构,即它关于侧向地横切涡轮发电机10的中央垂直面对称。双管结构43环绕涡轮转子50和发电机部件布置,并且所述发电机部件被容纳在外管40中。增强器管41具有对称的入口部分45和46,所述入口部分45和46为双向流创造了高效的管。中心孔240也可采用在单元10中而不使用毂,而是例如具有径向地朝向涡轮发电机的中心部分布置的悬臂叶片。中心孔240也可采用在非管式涡轮发电机10中。 
利用多个支柱24将双管结构43固定到毂20上,其中所述多个支柱24还用作环状部分51区域中的导流叶片。支柱24仅是狭缝200区域内的支柱 而不是弯曲的导流叶片。在优选的实施例中,在涡轮发电机10的两端的每一端处都有五个导流叶片24。优选地,叶片24径向地围绕毂20的轴线均匀地间隔。在优选实施例中,两个相反旋转的转子盘50可旋转地连接到毂20和多个轮叶30,优选对称的水翼叶片从所述毂20径向地延伸到转子边缘或轮缘54,所述转子边缘54安装在外管40的内表面中的凹槽(未显示)中,并且所述转子边缘54在轴承座圈中可旋转,或者在变化中所述转子边缘54在磁轴承座圈中可旋转。在其它变化中,可以采用单转子盘50或多转子盘50。如本领域普通技术人员会理解的,流增强狭缝200和孔240结构不仅可以用于潮汐的应用,也可用于其它涡轮发电应用。 
在优选的实施例中,双增强器管43是由复合材料制成的刚性结构。双增强器管43可以由诸如玻璃纤维,KevlarTM,碳纤维,强化纤维混凝土或者本领域中已知的任何其它组合制成。刚性、对称的双管43布置的优点包括:制造、安装及维修简单,并且资本成本低。在变化中,使用由柔性复合材料覆盖的不锈钢刚性框架。 
增强器管41的内壁朝向增强器管边缘62发散,由此当水100流过管20时,在涡轮叶片的下游产生减速作用。在优选实施例中增强器管41的外表面是凹面的,但也可以是凸面的或者是圆柱的。当涡轮发电机10是双向的时,双增强器管43的两端是有效的入口。增强器管41的中央部分是圆柱形的。在操作中,当水流100经过入口边缘62并沿着增强器管41和外管40的轮廓流动时它发生会聚。外管40和增强器管41之间的间隙或狭缝200是平滑环形流区域。叶片末端30和转子边缘54(此处未显示)被容纳在环状部分51中而不布置在狭缝200中。在水流100经过转子盘50之后,外管40和增强器管41再次分散,以允许水流100平稳扩散回自由流状态。双增强器管43的对称在双向潮汐环境下实现了高水力效率。在优选的实施例中,管入口45和出口46是轴对称的。可以按照如特定地点的参数或者诸如潮汐状况和当地海洋测深学的应用所要求的,采用诸如正方形、矩形或者任何其它任意形状的可选择配置。可以通过执行地点的计算的流体动力分析,确定对于每一地点的最佳形状。然而,优选的实施例是轴对称的。 
最佳设计的进一步特征是等于出口区域46(相对增强器管边缘62) 的入口区域45(增强器管边缘62),和喉区域,涡轮叶片区域,或者环状部分51(圆筒部分),所述喉区域,涡轮叶片区域,或者环状部分51根据与地点相关的潮汐条件最好在出口区域或面积46的十分之九(0.9)到四分之一(0.25)之间。环状部分51是外管40的内表面和毂20的外表面之间的区域,涡轮叶片30穿过所述区域。在优选的实施例中,对于一般的应用,外管40中心部分的中心喉部或者内表面与增强器管边缘62直径的比是0.5。变化中,比可以在0.1到0.9之间。 
两个管43的前后缘或边缘(包括外管40边缘64)最好具有流体力学的或流线形的轮廓,所述轮廓的横截面形状与机翼相似。该轮廓增加了进入涡轮环状部分的流100,并产生流100进入相邻狭缝200和环绕整个潮汐涡轮发电机10的平稳过渡。 
在优选的实施例中,诸如Si-Coat560TM的防污涂层被涂敷到管43。在变化中,易受水生生物累积的特定区域被涂敷。防污涂层的另外的好处是提供了有利于层流的高光滑表面,由此提高涡轮发电机10的效率。 
浮性材料被装入双增强器管43和发电机壳92的内部结构中,以增加潮汐涡轮发电机10的整体浮力。由于中和浮力有利于单元移动和维修的过程,因此中和浮力是单元的重要特征。在优选的实施例中,管43包括复合罩结构,所述复合罩结构填有聚氯乙烯封闭单元船用(marine)泡沫(未显示),从而实现用于整个潮汐涡轮发电机10的中和浮力。本领域中已知的其它封闭单元泡沫也可被采用。除中和浮力功能之外,通过减弱潮汐发电机10产生的水力噪声和电气噪声,封闭单元泡沫用作噪声抑制装置,从而减轻潮汐涡轮发电机10对鲸类和其它海洋哺乳动物的任何可能的声音影响。 
第二个独特的流特性是穿过毂20的纵向孔240。毂20的内表面最好是圆柱形。毂的外表面最好是椭圆形或者桶形,从毂边缘27上升到毂20的平坦中心部分的顶点。毂20的内表面限定沿着毂20轴线的纵向孔240。在其它变化中,轮廓的变化按照特定潮汐地点的计算流体动力分析所确定。 
现在参照图2,显示了具有狭缝200和中空毂240流增强结构的双增强器管水下涡轮发电机的主视图。显示了在优选的实施例中,外管边缘64 的前缘,毂边缘27,引导叶片24的弯曲特性,及随后的叶片30和环绕的外管40。 
现在参照图3,显示了穿过潮汐涡轮发电机10的狭缝200的切开透视图。狭缝200由上表面和下表面限定,其中所述上表面由增强器管41的内表面形成,所述下表面由包围发电机壳92的外管40的外表面形成。增强器管41包括入口区域45,喉区域47和出口区域46,它们随每次流100反转而反转。在优选实施例中,狭缝200的下表面是具有前缘或外管边缘64的柱面,前缘或外管边缘64为水流100进入狭缝200和涡轮环状部分或者转子盘区域51提供了平稳的进入或入口。叶片30被布置在转子边缘或环54中。 
在变化中,根据来自特定计算流体动力(“CFD”)分析的结果,狭缝表面200的轮廓可以变化。前缘34和后缘35具有横截面的形状与机翼相似的水力轮廓或流线轮廓。该缘轮廓增加了进入环状部分区域51的流100并为进入中心开口240的流100提供了平稳的过渡。 
中心孔240是保持流体动量守恒的区域。该特征既消除了早先存在于毂20之后的分离区域,另外还通过环绕涡轮转子盘区域51抽取另外的流100。分离区域的消除还减小了结构10上的振动负载,导致增强的可靠性并因此减少维修成本。 
中心孔240既增加了输出扭矩,又因此提高了潮汐涡轮10的整个效率。 
中心孔240概念除了其性能提高效果之外,还具有积极的环境益处。如果海洋生物进入潮汐涡轮发电机10,该中心区域240提供了鱼类和海洋哺乳动物的旁路。通过中心的孔240足够大以适合所有类型的鱼类和绝大多数其它海洋哺乳动物(除去巨大的鲸鱼)。 
中心孔240占据的区域小于或等于涡轮转子盘51占据的区域。这些区域的确切比例由使用地点特定参数所执行的CFD分析确定。孔240与涡轮转子盘区域51的最佳比在1∶15到1∶1之间,但在变化中,可以有利地采用其它比。 
限定中心孔240的毂20是潮汐涡轮发电机10的整体结构部件。涡轮10上的径向负载或力被从毂20转移到导流叶片或支柱24,然后直到主结构 部件,外管40。这产生非常刚性的并稳固的结构。毂20容纳一系列轴承58,所述一系列轴承58为涡轮转子50提供主要的径向对齐和轴向支撑。水润滑的、低摩擦轴承58被安装在涡轮转子毂20处。中心轴颈轴承58(或者数个轴承)为转子50提供径向支撑,并且两个止推轴承58被定位在转子50的两侧以适应由涡轮10上的双向水力负载产生的轴向偏移。在叶片(转子)边缘54位置处还采用另一组水润滑轴承58,以抵消转子50的轴向推力负载。该完整的轴承布置58减少了涡轮转子50对推压的敏感性。选择地,可以采用现有技术中众所周知的磁性轴承系统或者任何其它轴承系统。 
在优选的实施例中,毂20由海洋级不锈钢(marine gradestainless)构成。可选择的实施例包括由诸如玻璃纤维、KevlarTM、碳纤维、或者本领域中已知的任意组合物的复合材料制成的毂20。 
现在参照图4,显示了限定狭缝和孔的毂和外管和增强器管的侧视截面图,图4还显示了流线102。流线102图示说明了该设计的流增强特征。在变化中,轮廓的几何形状被改变,从而为与地点相关的安装改善流特征。狭缝200的几何形状是特定地点处潮汐流的特征的函数;然而,狭缝区域200,或者有效间隙具有涡轮转子区域或环状部分51的10%-50%的正常或额定范围(normal range)。图4图示说明了流线102从孔240和狭缝200区域进入环状部分51中的偏转,由此增加了到转子50上的流并由此增加了功率输出。 
进入狭缝200中的流体通过狭缝200维持其动量,然后施加该动量到双增强器管43的发散部分的边界层。流体的该注入既具有延迟在管43的发散部分上的分离区域的效果,又具有通过环绕的环状部分51区域抽取附加流的效果。这些效果的最终结果是显著地增加叶片30的扭矩的性能,并因此提高潮汐涡轮发电机10的整体效率。 
现在参照图5,显示了中空毂和外管和增强器管的前缘的侧面详细视图。毂20边缘27、外管40边缘64和增强器管41边缘62的椭圆、流体动力形状促进了层流和发电机效率。还显示了狭缝200和孔240。 
现在参照图6,显示了具有敞开的狭缝变化的双管的侧视截面图。狭缝200是不连续的,并且每一增强器管边缘62由支柱24支撑。还显示了水 流100。 
现在参照图7,显示了本发明的变化的双圆筒管覆盖的狭缝200的侧视截面图。在该变化中,外管40的外表面是圆筒形的。 
在运行中,由狭缝200和孔240特征产生的潮汐涡轮发电机10上的降低的振动载荷、更平稳的层流,通过转子盘50的增加的水流100,与不具有上述流增强结构的相似的涡轮发电机相比,根据单元10的类型和地点参数,使转子盘50的输出扭矩提高了50%以上,这又使整体效率提高10%以上。 
如本领域普通技术人员根据前述公开所清楚的,在不背离本发明的精神和范围的情况下,在本发明的实践中许多变更和修改是可以的。因此,根据随后的权利要求所限定的内容解释本发明的范围。 

Claims (17)

1.一种用于由水流产生电力的水力涡轮发电机装置中的流增强结构,所述装置包括至少一个转子盘,和至少一个发电机,
其特征在于:
a)设置在所述转子盘的周围的双向增强器管;
b)毂;以及
c)通过所述转子盘的中心的纵向孔,
其中所述双向增强器管固定到所述毂上,所述转子盘可旋转地连接到所述毂,并且所述毂的内表面限定所述纵向孔。
2.根据权利要求1所述的流增强结构,其中所述双向增强器管包括在所述双向增强器管的相对的端部的两个对称的入口。
3.根据权利要求2所述的流增强结构,还包括外管,所述外管围绕所述转子盘设置,并且位于所述双向增强器管的内侧。
4.根据权利要求3所述的流增强结构,还包括限定在所述外管和所述双向增强器管之间的大体环状的狭缝。
5.根据权利要求3所述的流增强结构,其中所述转子盘包括外转子边缘和一个或多个叶片,所述一个或多个叶片的末端连接到所述外转子边缘并且从所述外转子边缘向内径向延伸。
6.根据权利要求5所述的流增强结构,其中所述一个或多个叶片中的每一个从所述毂径向地延伸到所述外转子边缘,其中所述毂的内表面限定沿着毂轴线的所述纵向孔。
7.根据权利要求1所述的流增强结构,其中所述水力涡轮发电机装置是管式水下涡轮机。
8.根据权利要求5所述的流增强结构,其中所述水力涡轮发电机装置是轮缘发电、管式水下涡轮机。
9.根据权利要求5所述的流增强结构,其中所述一个或多个叶片为对称的水翼叶片。
10.根据权利要求3所述的流增强结构,还包括在转子边缘处采用的一个或多个轴承,其中所述轴承为磁性轴承。
11.根据权利要求6所述的流增强结构,还包括一个或多个位于所述至少一个转子盘和毂之间的磁性轴承。
12.根据权利要求6所述的流增强结构,其中所述毂包括两端和外表面,所述两端的直径等于或小于所述毂的在任何其它点的直径,由此产生液体动力形状或流线型形状并提高所述结构的效率。
13.根据权利要求6所述的流增强结构,还包括多个从所述毂伸出的支柱。
14.根据权利要求13所述的流增强结构,其中所述多个支柱从所述毂径向伸出并且可操作作为所述毂和所述外管之间的导流叶片。
15.根据权利要求14所述的流增强结构,其中所述导流叶片具有弯曲特性。
16.根据权利要求2所述的流增强结构,其中所述双向增强器管包括内壁,并且其中所述内壁朝向增强器管边缘发散。
17.根据权利要求1所述的流增强结构,其中所述水力涡轮发电机装置包括两个相反旋转的转子盘。
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US7874788B2 (en) 2011-01-25
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AU2005284617A1 (en) 2006-03-23
US20070284884A1 (en) 2007-12-13
US20110115228A1 (en) 2011-05-19
NZ553511A (en) 2010-10-29
EP1789676A1 (en) 2007-05-30

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