CN108361154A - 凸翼型截面的环绕式径向风力发电装置 - Google Patents

凸翼型截面的环绕式径向风力发电装置 Download PDF

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CN108361154A
CN108361154A CN201810212112.1A CN201810212112A CN108361154A CN 108361154 A CN108361154 A CN 108361154A CN 201810212112 A CN201810212112 A CN 201810212112A CN 108361154 A CN108361154 A CN 108361154A
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王贤
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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
    • F03DWIND MOTORS
    • F03D9/00Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20Wind motors characterised by the driven apparatus
    • F03D9/25Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • 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
    • F03DWIND MOTORS
    • F03D80/00Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • 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
    • F03DWIND MOTORS
    • F03D9/00Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/30Wind motors specially adapted for installation in particular locations
    • F03D9/34Wind motors specially adapted for installation in particular locations on stationary objects or on stationary man-made structures
    • F03D9/43Wind motors specially adapted for installation in particular locations on stationary objects or on stationary man-made structures using infrastructure primarily used for other purposes, e.g. masts for overhead railway power lines
    • F03D9/45Building formations
    • 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
    • F03DWIND MOTORS
    • F03D9/00Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/30Wind motors specially adapted for installation in particular locations
    • F03D9/48Wind motors specially adapted for installation in particular locations using landscape topography, e.g. valleys
    • 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
    • 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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/30Wind power
    • 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
    • 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
    • Y02E10/728Onshore wind turbines

Abstract

本发明公开了一种凸翼型截面的环绕式径向风力发电装置,包括一圆筒形体,在圆筒形体中部的筒壁上环绕该圆筒形体的轴线设有多个径向通道,在各个所述径向通道内均设有风力发电装置,所述风力发电装置包括用于驱动该风力发电装置的扇叶,所述扇叶的扇叶转轴之轴心与径向通道的轴心重合,所述圆筒形体的筒壁延轴向的截面为平凸翼型或凹凸翼型。本发明的凸翼型截面的环绕式径向风力发电装置,能够避免暴风将较大的沙、石粒吹打在扇叶的迎风面上损伤扇叶;在寒冷的暴风雪天气里,能够避免较大的雪粒高速打击在扇叶的迎风面上,克服扇叶旋转效率降低、甚至无法正常转动的技术缺陷。

Description

凸翼型截面的环绕式径向风力发电装置
本申请为分案申请,原申请的
申请日: 2017-07-13
申请号: 201710571749.5
发明名称:基于垂直变向的风力发电装置
技术领域
本发明涉及一种利用空气的压强差进行发电的装置。
背景技术
利用风能吹转扇叶,通过旋转的扇叶带动发电机发电,这种传统的风力发电技术技术成熟且应用广泛。如申请号为201080008030.7的发明专利《风力发电装置》、申请号为201310213028.9的发明专利《风力发电装置及风力发电系统》、申请号为200910161208.0的发明《风力发电机》等,为了跟踪风向,人们还发明了方位跟踪驱动装置,如申请号为01811561.6的发明《风力设备》、申请号为201010236404.2的发明《自动跟踪风向跟踪太阳风光发电系统》。
然而,我们在考察南极的能源利用时发现:南极的风力资源虽然极为丰富,但是科考站内的电能却不是利用风力发电,而是使用柴油发电机发电,在南极科考大力进行、南极旅游不断发展的今天,柴油发电不仅要消耗大量的柴油,而且还污染环境。
我们通常所说的12级台风,风速能达到32.6米/秒,够大的了吧,可在南极,风速常常能达到55.6米/秒,有时甚至达到83.3米/秒,这么丰富的风力资源,为什么不用来发电呢!
我们学生科技活动小组的成员经过研究发现,虽然南极的大风天气很多,风能资源非常丰富,但是,由于现有的风力发电装置基本是由多片扇叶组成,中间有一根中轴,这种结构的风力发电装置在南极使用存在如下无法克服的技术缺陷:当较大的沙、石粒吹打在扇叶的迎风面上时,会造成扇叶的损伤;尤其在寒冷的暴风雪天气里,较大的雪粒高速打击在扇叶的迎风面上,其破碎的冰末会粘附在扇叶的表面,冰末的慢慢堆积冻结,扇叶越来越笨重,就会大大降低扇叶的旋转效率,且慢慢堆积冻结,还会改变扇叶原有的迎风面形状,当扇叶的迎风面不再是倾斜的光滑表面时,风吹在扇叶的迎风面上(实际上是吹在扇叶迎风面冻结的冰层上),扇叶的受力散乱,也会大大降低扇叶的旋转效率,甚至导致扇叶无法正常转动。
发明内容
本发明的目的是提供一种凸翼型截面的环绕式径向风力发电装置,能够避免暴风将较大的沙、石粒吹打在扇叶的迎风面上损伤扇叶;在寒冷的暴风雪天气里,能够避免较大的雪粒高速打击在扇叶的迎风面上,克服扇叶旋转效率降低、甚至无法正常转动的技术缺陷。
为实现上述目的,本发明采用如下技术方案:
一种凸翼型截面的环绕式径向风力发电装置,包括一圆筒形体,在圆筒形体中部的筒壁上环绕该圆筒形体的轴线设有多个径向通道,在各个所述径向通道内均设有风力发电装置,所述风力发电装置包括用于驱动该风力发电装置的扇叶,所述扇叶的扇叶转轴之轴心与径向通道的轴心重合,所述圆筒形体的筒壁延轴向的截面为平凸翼型或凹凸翼型。
所述径向通道里端的圆筒形体的内壁处设有向外侧凹陷的凹腔。
与现有技术相比本发明的有益效果是:由于采用上述技术方案,所述圆筒形体的筒壁延轴向的截面为:外侧的中部向外凸起构成弧形,内侧为直线形,在圆筒形体中部的筒壁上环绕该圆筒形体的轴线设有多个径向通道,在各个所述径向通道内均设有风力发电装置,所述风力发电装置包括用于驱动该风力发电装置的扇叶,所述扇叶的扇叶转轴之轴心与径向通道的轴心重合,这种结构的圆筒形体,当大风从圆筒形体的左端向右端流动时,根据伯努利原理(即流体的流速越大,其压强越小;流速越小,其压强越大),由于所述圆筒形体的外周为上凸的弧面,圆筒形体的筒内为直通的通道,圆筒形体筒内的风的流速低于外周的风的流速,从而使得圆筒形体筒内的压强大于外周的压强,产生了气压差,径向通道里端的压强大于外端的压强,径向通道内就会产生从里端向外端流动的气流,设在径向通道内的扇叶就会被气流推动而旋转,从而驱动风力发电装置发电,因径向通道垂直于圆筒形体的轴线,这样的结构使所述发电装置不必直接面对暴风雪,避免暴风将较大的沙、石粒吹打在扇叶的迎风面上损伤扇叶;在寒冷的暴风雪天气里,能够避免较大的雪粒高速打击在扇叶的迎风面上,从而避免积雪在扇叶迎风面上冻结,克服了扇叶旋转效率降低、甚至无法正常转动的技术缺陷。适合在南极极端恶略的环境中使用。
为进一步提高发电效率,所述径向通道里端的圆筒形体的内壁处设有向外侧凹陷的凹腔,这种结构,可以进一步降低流入圆筒形体筒内的气流的速度,从而提高筒内气流与筒外气流之间的压强差,进一步提高发电效率。
附图说明
图1是本发明的结构示意图;
图2是图1的A—A向剖视图;
图3是图1的俯视图;
图4是图1开设了凹腔的结构示意图;
图5是本发明另一种结构的示意图;
图6是5的俯视图。
具体实施方式
为了使本发明的技术方案更加清晰,以下结合附图1至6,对本发明进行详细说明。应当理解的是,本说明书中描述的具体实施方式仅仅是为了解释本发明,并不是为了限定本发明的保护范围。
本发明是一种凸翼型截面的环绕式径向风力发电装置,包括一圆筒形体1,所述圆筒形体1的筒壁延轴向的截面为:外侧的中部向外凸起构成弧形2,内侧为直线形3,在圆筒形体1中部的筒壁上环绕该圆筒形体1的轴线设有多个径向通道4,在各个所述径向通道4内均设有风力发电装置,所述风力发电装置包括用于驱动该风力发电装置的扇叶5,所述扇叶5的扇叶转轴之轴心与径向通道4的轴心重合。作为优选,圆筒形体1的筒壁可以是空腔结构。
作为优选,径向通道4可以设置四个、六个、或更多,径向通道4的直径和圆筒形体1的筒内直通道的直径大小可以调整,以产生合适的压差为标准,多个径向通道4最好是环绕圆筒形体1的轴线均匀分布,每个径向通道4内均设置风力发电装置。所述风力发电装置还包括发电机6,所述扇叶转轴通过变速器7与所述发电机6转动连接。所述变速器7,可以是减速器,也可以是可控变速机构等等。所述风力发电装置可以通过支撑杆8固定于径向通道4内,所述支撑杆8至少有一个为空心结构,所述风力发电装置的输电线和控制线经由该空心结构的支撑杆8与径向通道4外部相应的电器部件相连接,所述外部相应的电器部件,例如控制器,用电器,变压器等等,这些电器部件可以安装在圆筒形体1的空腔内,也可以安装在地面。在南极,基本都是东南风,可以将圆筒形体1的左端迎着风向,将圆筒形体1通过支架固定于地面上;也可以将圆筒形体1与支架之间通过铰轴可转动连接,支架上设风向跟踪装置,灵活调节跟踪风向,提高发电效率。 为进一步提高发电效率,所述径向通道4里端的圆筒形体1的内壁处设有向外侧凹陷的凹腔9,这种结构,可以进一步降低流入圆筒形体1筒内的流体的速度,从而提高筒内流体与筒外流体之间的压强差,提高发电效率。当然,所述凹腔9也可以是环绕筒形体1轴线的凹腔环。
本发明的另一种凸翼型截面的环绕式径向风力发电装置的结构,仅仅是在上述技术方案的基础上,对圆筒形体1的截面进行了变化:具体结构包括一圆筒形体1,所述圆筒形体1的筒壁延轴向的截面为平凸翼型或凹凸翼型,在圆筒形体1中部的筒壁上环绕该圆筒形体1的轴线设有多个径向通道4,在各个所述径向通道4内均设有风力发电装置(参考图5,这种结构,风从左边向右边吹时,径向通道里端与外端的压强差较大,发电效率提高),所述风力发电装置包括用于驱动该风力发电装置的扇叶5,所述扇叶5的扇叶转轴之轴心与径向通道4的轴心重合。
这种流线型的圆筒形体1,风阻小,抗风能力强。
上述技术方案中,当筒壁采用空腔结构时,圆筒形体1的筒壁可以采用不锈钢板材焊接制成,为了简化,空腔体1外壳的厚度没有画出,径向通道4的通道壁厚也没有画出。所述空腔内可以放置相应的电器部件,例如控制器,用电器,变压器等等。

Claims (2)

1.一种凸翼型截面的环绕式径向风力发电装置,包括一圆筒形体(1),在圆筒形体(1)中部的筒壁上环绕该圆筒形体(1)的轴线设有多个径向通道(4),在各个所述径向通道(4)内均设有风力发电装置,所述风力发电装置包括用于驱动该风力发电装置的扇叶(5),所述扇叶(5)的扇叶转轴之轴心与径向通道(4)的轴心重合,其特征在于:所述圆筒形体(1)的筒壁延轴向的截面为平凸翼型或凹凸翼型。
2.根据权利要求1所述的凸翼型截面的环绕式径向风力发电装置,其特征在于:所述径向通道(4)里端的圆筒形体(1)的内壁处设有向外侧凹陷的凹腔(9)。
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