CN109630349A - 风叶可以开合的风力发电机组 - Google Patents

风叶可以开合的风力发电机组 Download PDF

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CN109630349A
CN109630349A CN201710991319.9A CN201710991319A CN109630349A CN 109630349 A CN109630349 A CN 109630349A CN 201710991319 A CN201710991319 A CN 201710991319A CN 109630349 A CN109630349 A CN 109630349A
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fan blade
guide plate
blade
wind
wind direction
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蔡细华
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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
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • F03D1/0633—Rotors characterised by their aerodynamic shape of the blades
    • 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
    • F03D1/065—Rotors characterised by their construction elements
    • F03D1/0675—Rotors characterised by their construction elements of the blades
    • 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
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/022—Adjusting aerodynamic properties of the blades
    • F03D7/0236—Adjusting aerodynamic properties of the blades by changing the active surface of the wind engaging parts, e.g. reefing or furling
    • 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
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05B2240/31—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape
    • F05B2240/312—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape capable of being reefed
    • F05B2240/3121—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape capable of being reefed around an axis orthogonal to rotor rotational axis
    • 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

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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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Power Engineering (AREA)
  • Wind Motors (AREA)

Abstract

风叶可以开合的风力发电机组，包括风叶、风叶轴、发电机转子、发电机定子、支撑杆、机座、轴承、地基、风向导板，传感放大器、电缆、电机齿带轮、齿带。风叶、发电机转子、发电机定子、风向导板组成的部分装在支撑杆上，支撑杆通过轴承装配在机座上，机座固定在地基上。风叶由两叶片以风叶轴为圆心对称的开合，风叶背部装有起缓冲作用的弹簧，使风叶打开时不会过于猛烈而损坏。风叶合拢时留有间隙；以利于风叶迎风时能顺利打开。风叶的迎风角度受风向导板调整到最佳受风角度，提高发电效率。该发动机组的风向导板，可以直接调整风叶迎风角度，也可以通过传感放大器放大风向导板的调整信号，通过电缆驱动电机带动齿带、齿带轮来转动支撑杆，从而调整风叶的迎风角度。风叶轴是空心的，空心的风叶轴用以向开合的风叶提供润滑，以利于该发动机组更稳定可靠运行。

Description

风叶可以开合的风力发电机组
所述技术领域
本发明涉及一种使用风力作为动力的发电机，特别是一种叶片可以开合的风力发电机组。
背景技术
目前所公知的风力发电机大都是三叶片，风叶细长，正面迎风面积小，扭矩就小，为了获得大扭矩大功率不得不把风叶做的很长，例如华锐公司的SL5000风力发电机风叶直径就达到了惊人的128米，造价高昂效费低。
发明内容
为了克服背景技术中提到的风力发电机的缺陷，本发明提供一种全新叶片可以开合的风力发动机，正面迎风的截面积很大，风的作用力就大；背风时截面积很小，转动起来阻力就小。迎风时风叶张开发电，背风就合拢减小阻力。如建造同SL5000一样功率的风力发电机采用可以开合的风叶设计，风叶半径可以缩短为30米就足够了。因为开合式风叶的叶片可以做成矩形的，例如10米*30米，受风面积远远超过同直径三叶片的风力发电机。如此大的受风面积使得风叶的扭矩直线上升。为了达到上述目的，本发明在地基上设置一个机座，在机座上插入一个长的支柱，支柱上装有发电机，长的的支柱可以把发电机举到较高的地方，较高的地方的风力比较大，风力大发电量就大.发电机的转子上装有可以开合的叶片，可以开合的叶片转到迎风位置时就张开，风的作用力就变得很大，风能就可以最大的得到利用；转到背风位置就合拢，把转动时产生的阻力减到最小。这样叶片可以开合的风力发电机的叶片转到迎风位置张开，最大限度的利用风能发电；转到背风位置叶片合拢，最大程度的减小阻力，以利于提高发电效率。
本发明一个较佳实施案例中，发电机转子轴上装有风叶轴，两个叶片以风叶轴为圆心对称组成可以开合的风叶，支撑杆将发电机支在空中，支撑杆通过轴承安装在基座上，可以转动；风向导板装在发电机上，风向导板可以调整风叶的迎风角度。
本发明一个较佳的实施案例中，风向导板与发电机呈90度，风向导板在风的作用下与风的方向一致，风向导板与多个叶片构成的一个平面的风向是一致的。
本发明一个较佳实施案例中，可以开合的风片在合拢时留有小角度缝隙，以便于转到迎风时顺利打开，可以开合风片迎风面的后面设有弹簧，在风叶迎风开启的时候起到缓冲作用，不至于使风片开启太猛烈而损坏。
本发明的一个较佳的实施案例中，风叶轴是空心的，以便于为开合的风叶片的活动部位提供润滑。
本发明的一个较佳的实施案例中，当该风力发电机组做的较大时，不直接使用风向导板对发电机的迎风角度进行调整，而是做一个小风向导板，小风向导板角度调整的信号通过传感放大器放大后驱动电机转动，电机的齿带轮通过齿带带动支撑杆上的齿带轮转动，从而支撑杆转动调整角度，支撑杆带动发电机风叶片调整迎风角度，从而使该发电机达到高效的工作状态。
附图说明
图1是用风向导板直接调整风叶迎风角度的风力发电机组原理图。
图2是通过传感放大器来调整风叶迎风角度的风力发电机组原理图。
图3是迎风打开的风叶结构图.
图4是背风合拢的风叶结构图。
图中1风向导板、2风叶、3弹簧、4支撑杆、5机座、6地基、7电机、8电机线、9传感放大器、10支撑杆齿带盘、11齿带、12风叶轴、13发电机定子、14轴承、15发电机转子、16电机齿带轮。
具体实施方式
在图1中，基座5牢固的安装在地基6上，支撑杆4通过轴承14装配在机座5里面可以转动，发电机定子13安装在支撑杆4上.风叶2由两片对称的叶片组成，可以开合，(详细可参考图3和图4)风叶2具有迎风打开，背风合拢的特点，风叶2背风合拢时留有间隙(可以参考图4)，以利于迎风再次打开。风叶2背部有弹簧3，起到缓冲作用，以确保风叶2打开时不会过于猛烈而损坏。风叶2装配在风叶轴12上，风叶轴12是空心的，以利于为开合的风叶2通过润滑。风叶轴12把风叶2对称的固定在发电机转子15上，以确保该发动机运行平稳.风向导板1装在发电机定子13上，风向导板1的摆动方向和风向一致，由于支撑杆4可以转动的，所以风向导板1可以调整该发动机的风叶2的迎风方向角度，让该发动机处在最佳的位置接受风力，从而提高发电效率。
图2和图1的不同之处是风向导板1的安装位置，图2适用于大型化的该发明风力发电机。图2中风向导板1调整角度的信号由传感放大器9放大后通过电机线8驱动电机7的电机齿带盘16，电机齿带盘16带动齿带11，齿带11再带动支撑杆齿带盘10，从而达到调整该发动机的风叶2的迎风方向，提高发电效率。

Claims (3)

1.风叶可以开合的风力发电机组，包括风叶、风叶轴、发电机转子、发电机定子、支撑杆、机座、轴承、地基、风向导板，传感放大器、电缆、电机，齿带轮、齿带，其特征是：风叶、发电机转子、发电机定子、风向导板组成的部分装在支撑杆上，支撑杆通过轴承装配在机座上，机座固定在地基上；风叶由两叶片以风叶轴为圆心对称的开合，风叶背部装有起缓冲作用的弹簧，风叶合拢时留有间隙；风叶的迎风角度受风向导板调整。
2.根据权利要求1所述该发动机组的风向导板，可以直接调整风叶迎风角度，也可以通过传感放大器放大风向导板的调整信号，通过电缆驱动电机带动齿带、齿带轮来转动支撑杆，从而调整风叶的迎风角度。
3.根据权利要求1所述的该发电机组的风叶轴是空心的，空心的风叶轴用以向开合的风叶提供润滑。
CN201710991319.9A 2017-10-09 2017-10-09 风叶可以开合的风力发电机组 Pending CN109630349A (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101182830A (zh) * 2007-12-18 2008-05-21 王掊陌 迎风启闭式帆叶风轮
KR20100086718A (ko) * 2009-01-23 2010-08-02 박완규 풍력발전장치
CN203230535U (zh) * 2013-03-22 2013-10-09 周海波 高效风力发电机

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101182830A (zh) * 2007-12-18 2008-05-21 王掊陌 迎风启闭式帆叶风轮
KR20100086718A (ko) * 2009-01-23 2010-08-02 박완규 풍력발전장치
CN203230535U (zh) * 2013-03-22 2013-10-09 周海波 高效风力发电机

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Application publication date: 20190416