WO2019206102A1 - 一种高效风力发电装置 - Google Patents

一种高效风力发电装置 Download PDF

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Publication number
WO2019206102A1
WO2019206102A1 PCT/CN2019/083749 CN2019083749W WO2019206102A1 WO 2019206102 A1 WO2019206102 A1 WO 2019206102A1 CN 2019083749 W CN2019083749 W CN 2019083749W WO 2019206102 A1 WO2019206102 A1 WO 2019206102A1
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wind
wind power
impeller
blade
power generator
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PCT/CN2019/083749
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English (en)
French (fr)
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王武生
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Wang Wusheng
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Publication of WO2019206102A1 publication Critical patent/WO2019206102A1/zh

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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 
    • F03D1/04—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels
    • 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
    • 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

Definitions

  • the present invention relates to wind power generation technology and, in particular, to an efficient wind power generation apparatus.
  • the wind is one of the energy sources without pollution, and it is inexhaustible and inexhaustible. As a clean and renewable energy source, wind energy is receiving more and more attention from all countries in the world. China's wind energy resources are abundant, and the wind energy reserves that can be developed and utilized are about 1 billion kW. Among them, the onshore wind energy reserves are about 253 million kW (calculated on the land 10m above sea level), and the wind energy reserves that can be developed and utilized at sea are about 750 million kW. A total of 1 billion kW.
  • wind power generation The attempt to use wind power began as early as the beginning of the twentieth century.
  • the wind's kinetic energy is transformed into mechanical kinetic energy, and then the mechanical energy is converted into electric power.
  • This is wind power generation.
  • the principle of wind power generation is to use wind power to drive the rotation of the windmill blades, and then increase the speed of rotation through the speed increaser to promote the generator to generate electricity.
  • the degree of breeze you can start generating electricity.
  • Wind power is forming a boom in the world because wind power does not require the use of fuel or radiation or air pollution.
  • the current wind power generation method basically adopts the propeller blade type, and the propeller blade power generation method not only has the disadvantages of high manufacturing cost, but also has the disadvantage of large wind resistance due to the high linear velocity at the edge of the blade, and has a diameter of 120 m and a rotational speed of 10 r/m.
  • the blade has a line speed of 63 m/s, which is equivalent to a wind resistance of 226 km/h.
  • the presence of this wind resistance can greatly consume its own kinetic energy, resulting in a significant reduction in power generation. Why not use impellers to generate electricity?
  • an object of the present invention is to provide an efficient wind power generation apparatus that realizes high-quality wind power generation with low cost, low energy consumption, and high efficiency to promote scale utilization of wind resources.
  • the present invention adopts the following technical solutions:
  • An efficient wind power generation device includes an impeller and an impeller shaft, the impeller includes a blade, and a windshield is disposed outside the blade opposite to the wind direction in the rotating direction; and the wind deflector is disposed at a front end of the impeller, The diameter of the air hood is changed from large to small, with a large diameter at the air inlet and a small diameter at the front end of the impeller.
  • the invention can significantly improve the working efficiency of the wind power generator through the air guiding effect of the air guiding hood and the isolation effect of the wind hood.
  • the air inlet of the impeller is 5m ⁇ 20m.
  • the air inlet of the air duct is 15m ⁇ 20m, and the width is the same as the original, but the height is three times.
  • the air outlet of the hood is still 5 meters x 20 meters, which is the same as the air inlet of the impeller.
  • the wind energy of 15 m ⁇ 20 m is introduced to 5 m ⁇ 20 m, the air intake is increased by three times, and the wind hood can make the blades whose rotation direction is opposite to the wind direction no longer subject to the wind.
  • the reverse action can greatly reduce the reverse resistance of the wind; therefore, the above scheme can significantly improve the utilization of wind energy, and can be increased to more than twice the current under the same conditions.
  • the wind shield is capable of regulating the air flow according to the rotation of the airflow direction along the impeller shaft. Because the wind direction is constantly changing, it can be adapted to the change of wind direction by rotation, especially when the impeller shaft is perpendicular to the ground. At the same time, the rotation of the windshield can also achieve the effect of adjusting the size of the wind. By adjusting the size of the wind, the wind can be relatively stable and the quality of the electric energy can be improved.
  • the windshield is provided with an opening and closing door. Since the size of the wind can be adjusted by opening or closing the opening and closing door, a relatively stable wind can be maintained to ensure the quality of the generated power.
  • the blade is a curved blade or a spiral blade.
  • a baffle is provided at both ends of the blade. Because the baffles are provided at both ends of the blade, the wind at both ends can be locked to improve the utilization of wind energy.
  • a transmission wheel is disposed on the baffle, and the transmission wheel is coupled to the generator.
  • At least one partitioning plate is provided on the blade such that the blade is divided into a plurality of segments. Through the blocking action of the partition plate, the wind can be locked in the isolation zone to prevent wind diffusion and improve the utilization efficiency of the wind energy.
  • At least one output wheel is mounted on the impeller shaft, the output wheel having a clutching function.
  • the size of the wind is constantly changing, especially in the morning and evening, and the seasons are very large.
  • One or more power transmission wheels are installed on the impeller shaft. When the wind is small, some of the power transmission wheels are separated by the clutch connection function. Thereby, the power generation load is reduced, and the power generation quality is ensured; similarly, when the wind power is increased, the power transmission wheels are connected to increase the power generation load, thereby fully utilizing the wind power generation and ensuring the power generation quality.
  • the high efficiency wind power generating device further comprises a U-shaped beam wind trough, and the impeller is located in the U-shaped beam wind trough.
  • the impeller is located in the U-shaped beam wind trough.
  • the air guiding cover is provided with an opening and closing door.
  • the opening or closing action of the opening and closing door the amount of intake air can be continuously adjusted, so that the air volume is relatively stable, thereby ensuring the quality of power generation.
  • the front end of the U-shaped bundle air duct is integrally connected with the rear end of the air hood. This connection ensures that the two are combined into one, which increases the ease of installation and reduces manufacturing costs.
  • a wind direction adjusting shaft is vertically disposed in a middle portion of the impeller shaft, and the wind direction adjusting shaft can automatically adjust the impeller shaft to be perpendicular to the wind direction according to the wind direction change, thereby improving wind power generation efficiency.
  • a guide rudder is provided on the impeller or on the impeller shaft or on the wind direction adjustment shaft. Once the wind direction changes, the steering rudder will adjust the blade direction to be perpendicular to the wind direction under the action of the wind, thereby improving the wind power generation efficiency.
  • a solar panel is provided above the wind turbine. Make full use of the available space by installing solar panels on top.
  • the present invention has the following beneficial effects:
  • the invention installs a windshield outside the blade opposite to the wind direction, and provides an air guiding hood at the front end of the impeller, and isolates the blade from the wind through the windshield to reduce the reverse resistance of the wind, and through the air guiding effect of the air guiding hood, Therefore, the utilization rate of wind energy can be significantly improved, and can be increased to more than twice as much under the same conditions; therefore, the invention can realize high-quality wind power generation with low cost, low energy consumption and high efficiency, and promote the scale of wind resources.
  • the application is of great value.
  • Embodiment 1 is a schematic structural view of an efficient wind power generation device provided in Embodiment 1;
  • Embodiment 2 is a schematic structural view of another high-efficiency wind power generation device provided in Embodiment 2;
  • Embodiment 3 is a schematic structural view of a blade provided in Embodiment 3;
  • Embodiment 4 is a schematic structural view of an efficient wind power generation device provided in Embodiment 4.
  • FIG. 5 is a schematic structural diagram of still another high-efficiency wind power generation device provided in Embodiment 5.
  • an efficient wind power generation device provided by the present embodiment includes an impeller 1 and an impeller shaft 2, and the impeller 1 includes a blade 3, and a windshield 4 is disposed outside the blade 3A whose rotation direction is opposite to the wind direction. .
  • An air guiding cover 13 is installed at the front end of the impeller 1, and the air guiding cover 13 has a contracted horn shape, a large diameter at the air inlet, and a small diameter at the front end of the impeller 1, when the wind 5 enters the air hood 13 Thereafter, as the area of the air guiding hood 13 is gradually reduced, the wind force of the wind 5 is gradually increased, so that the efficiency of wind power generation can be improved. For example, when the area of the air hood 13 is doubled, the wind power is doubled, and the power generation efficiency of one wind turbine is equivalent to the power generation efficiency of the original two wind turbines.
  • the vane 3A blocked by the windshield 4 is not affected by the wind force, and is not
  • the blade 3 covered by the windshield 4 is subjected to the wind force to rotate in the same direction as the wind direction, so that the rotation direction of the blade 3A located in the windshield 4 is opposite to the wind direction, and only the static inside the wind shield is received during the rotation.
  • the blocking effect of the air 6 is because the wind speed in the static air 6 is zero, so the wind resistance of the blade 3A whose rotation direction is opposite to the wind direction can be significantly reduced compared with the prior art, so that the energy consumption of the wind energy is significantly reduced, thereby further significantly improving Utilization of wind energy.
  • the high-efficiency wind power generation device provided in this embodiment is different from the high-efficiency wind power generation device provided in Embodiment 1 in that the blade 3 is a curved blade so as not to be covered by the windshield cover 4.
  • the curved groove of the blade 3B is set in the wind, and the curved groove of the blade 3A covered by the windshield 4 is leeward so that the blade 3B not covered by the windshield 4 can be opposed
  • the straight blade can receive a greater wind force, and the blade 3A covered by the windshield 4 is less resistant to wind and the wind energy loss is smaller, and the utilization of wind energy can be further improved than in the first embodiment.
  • the high-efficiency wind power generation device provided in this embodiment is different from the second embodiment in that a baffle 7 is disposed at both ends of the curved blade 3, and a gap is provided between the two baffles.
  • a plurality of blocks (three blocks are shown in Fig. 3) are divided into panels 8, and the curved blades 3 are divided into four segments, each of which has only a quarter of the original space.
  • the high-efficiency wind power generating apparatus is different from the third embodiment in that a flat bearing 11 is disposed at the upper end of the support rod 10 vertically fixed to the ground 9, on both sides of the planar bearing 11.
  • An impeller 1 is symmetrically disposed, and a baffle 7 is disposed at both ends of the vane 3 of the impeller 1, and a plurality of (three blocks are shown in FIG. 4) partition plates 8 are provided between the two baffles, the blades 3 is divided into four sections; a guiding rudder 12 is arranged above the plane bearing 11, and the guiding rudder 12 is perpendicular to the blade 3, and the guiding rudder 12 drives the blade 3 to rotate horizontally in synchronization.
  • the guide rudder 12 is rotated by the wind force, and when the rotation is performed, the blade 3 is also rotated by the plane bearing 11 to rotate in the vertical direction to obtain the maximum wind force.
  • the high-efficiency wind power generation apparatus provided in this embodiment is different from the second embodiment in that a U-shaped bundle air duct 14 is provided on the outer circumference of the blade 3B not covered by the windshield 4, U-shaped.
  • the open end of the beam plenum 14 is an air inlet end, and the U-shaped plenum 14 allows the airflow blown to the blade 3B not covered by the hood 4 to be trapped in the U-shaped plenum 14 to avoid being blown by the wind.
  • the airflow is diffused and lost to the surroundings, thereby further increasing the utilization of wind energy.
  • the U-shaped bundle air duct 14 can be integrally connected with the air hood 13 for processing and installation, thereby reducing manufacturing costs.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
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  • Chemical & Material Sciences (AREA)
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Abstract

一种高效风力发电装置，包括叶轮（1）和叶轮轴（2），叶轮（1）包括叶片（3），在旋转方向与风向相反的叶片（3A）外部设有遮风罩（4），在叶轮（1）的前端设有导风罩（13），导风罩（13）的口径由大变小，在进风口处为大口径，在叶轮（1）的前端处是小口径。

Description

一种高效风力发电装置 技术领域
本发明是涉及风力发电技术，具体说，是涉及一种高效风力发电装置。
背景技术
风是没有公害的能源之一，而且取之不尽、用之不竭。风能作为一种清洁可再生能源，越来越受到世界各国的重视。我国风能资源丰富，可开发利用的风能储量约10亿kW，其中，陆地上风能储量约2.53亿kW(陆地上离地10m高度资料计算)，海上可开发和利用的风能储量约7.5亿kW，共计10亿kW。
利用风力发电的尝试，早在二十世纪初就已经开始了。把风的动能转变成机械动能，再把机械能转化为电力动能，这就是风力发电。风力发电的原理，是利用风力带动风车叶片旋转，再透过增速机将旋转的速度提升，来促使发电机发电。依据目前的风车技术，大约是每秒三米的微风速度(微风的程度)，便可以开始发电。风力发电正在世界上形成一股热潮，因为风力发电不需要使用燃料，也不会产生辐射或空气污染。
现在的风力发电方法基本上都是采用螺旋桨叶式，螺旋桨叶式发电方法不仅具有制造成本高，而且由于桨叶边缘的线速度高存在风阻大的缺点，以直径为120米、转速10r/m的桨叶为例：桨叶的边缘线速度达到63米/秒，相当于226公里/小时的风阻力。这种风阻力的存在会极大地消耗自身动能，从而导致发电量显著减少。为什么不用叶轮发电呢？因为当叶轮在风力推动下旋转时，叶轮轴上方叶片的旋转方向与叶轮轴下方叶片的旋转方向相反，这种相反就会相互抵销，导致发电效率低下，没有实用价值。另外，由于风量是变化不稳定的，以致风轮的转速不稳定，输出的是变化的交流电，导致风力发电的品质差，利用率低。为了解决上述问题，目前是通过附加一个把转速提高到风力发电机额定转速的齿轮变速箱，再加一个调速机构使转速保持稳定，然后再连接到发电机上，并使风力发电机输出的交流电，经充电器整流后对蓄电瓶充电，使风力发电机产生的电能变成化学能，然后用有保护电路的逆变电源，将电瓶里的化学能转变成交流220V市电，从而保证稳定使用。由上所述可见：这种转换方式不仅导致能量的多级损耗，而且成本高，不具有规模化应用的实用性。
发明内容
针对现有技术存在的上述问题和需求，本发明的目的是提供一种高效风力发电装置，以 低成本、低能耗、高效率实现高品质的风力发电，以促使风力资源的规模化应用。
为实现上述目的，本发明采用如下技术方案：
一种高效风力发电装置，包括叶轮和叶轮轴，所述叶轮包括叶片，在旋转方向与风向相反的叶片外部设有遮风罩；其特征在于：在所述叶轮的前端设有导风罩，所述导风罩的口径由大变小，在进风口处为大口径，在叶轮的前端处是小口径。
本发明通过导风罩的导风作用及遮风罩的隔离作用，可显著提高风力发电机的工作效率。如：叶轮的进风口是5米×20米，现在通过导风罩的作用，导风罩的进风口的尺寸是15米×20米，宽度与原来一样，但高度是原来的三倍；导风罩的出风口仍然是5米×20米，与叶轮的进风口相同，并与之相接。通过导风罩的导风作用，将15米×20米的风能引入到5米×20米，进风量增加了三倍，并且，遮风罩可使旋转方向与风向相反的叶片不再受到风力的反向作用，可大幅度降低风的反向阻力；因而上述方案可显著提高风能的利用率，同等条件下可提高到现有的二倍以上。
作为优选方案，所述遮风罩能根据气流方向沿叶轮轴的旋转调节气流量。因为风向是会不断变化的，通过旋转可适应风向的改变，特别是当叶轮轴与地面垂直时，这种改变更加重要。同时，通过遮风罩的旋转也可达到调节风力大小的作用，通过调节风力大小，可以保持风力的相对稳定，提高电能的品质。
作为优选方案，在所述遮风罩上设有开合门。因通过开合门的开启或闭合可以调节风力大小，因而可保持比较稳定的风力，保证所发电能的品质。
作为优选方案，所述叶片为弧形叶片或螺旋形叶片。
作为优选方案，在叶片的两端设有挡板。因在叶片的两端设置挡板，可将两端的风力锁住，提高风能的利用率。
作为进一步优选方案，在所述挡板上设置传动轮，所述传动轮与发电机相连接。
作为进一步优选方案，所述叶片上设有至少一块分隔板，使所述叶片被分隔为多段。通过分隔板的阻挡作用，可将风力锁住在隔离区内，防止风力扩散，提高风能的利用效率。
作为进一步优选方案，在所述叶轮轴上安装有至少一个输出轮，所述输出轮具有离合功能。风力的大小是不断变化的，特别是早晚、季节的变化非常大，在叶轮轴上安装一个或一个以上的动力传输轮，当风力变小时，通过离合连接功能使其中的部分动力传输轮分离，从而减少发电负荷，保证发电品质；同样，当风力变大时，使其中的动力传输轮连接上，增加发电负荷，从而充分利用风能发电，并保证发电品质。
作为优选方案，所述高效风力发电装置还包括U形束风槽，叶轮位于所述U形束风槽内。 通过束风槽的束风作用，可以防止风力在推动叶片时，不会向其它方向扩散，以致气流的动力仅限于叶轮的旋转方向，从而进一步提高风能的利用效率。
作为优选方案，在所述导风罩上设有开合门。通过开合门的开启或关闭作用，可不断调整进风量的大小，使风量处于相对稳定的状态，从而保证所发电的品质。
作为进一步优选方案，所述U形束风槽的前端与导风罩的后端连接为一体。这种连接可以保证两者合二为一，可增加安装的方便性和降低制造成本。
作为优选方案，在所述叶轮轴的中部垂直设有风向调节轴，所述风向调节轴能根据风向变化自动调节叶轮轴与风向保持垂直，从而提高风力发电效率。
作为优选方案，在所述叶轮上或叶轮轴上或风向调节轴上设有导向舵。一旦风力方向改变，导向舵会在风力作用下，调节叶片方向与风向保持垂直，从而提高风力发电效率。
作为优选方案，在风力发电机的上方设有太阳能电池板。通过在上方安装太阳能电池板可以充分利用有效空间。
与现有技术相比，本发明具有如下有益效果：
本发明通过在与风向相反的叶片外部安装遮风罩、在叶轮前端设置导风罩，通过遮风罩将叶片与风隔离，降低风的反向阻力，并通过导风罩的导风作用，从而使风能的利用率得到显著提高，同等条件下可提高到现有的二倍以上；因此，本发明可低成本、低能耗、高效率实现高品质的风力发电，对促使风力资源的规模化应用具有重要价值。
附图说明
图1是实施例1提供的一种高效风力发电装置的结构示意图；
图2是实施例2提供的另一种高效风力发电装置的结构示意图；
图3是实施例3提供的一种叶片结构示意图；
图4是实施例4提供的一种高效风力发电装置的结构示意图；
图5是本实施例5提供的又一种高效风力发电装置的结构示意图。
图中：1、叶轮；2、叶轮轴；3、叶片；3A、被遮风罩所遮住的叶片；3B、未被遮风罩遮住的叶片；4、遮风罩；5、风；6、静态空气；7、挡板；8、分隔板；9、地面；10、支撑杆；11、平面轴承；12、导向舵；13、导风罩；14、U形束风槽。
具体实施方式
下面结合实施例和附图对本发明的技术方案作进一步详细阐述：
实施例1
如图1所示，本实施例提供的一种高效风力发电装置，包括叶轮1和叶轮轴2，所述叶轮1包括叶片3，在旋转方向与风向相反的叶片3A外部设有遮风罩4。
在叶轮1的前端安装了导风罩13，所述导风罩13呈收缩式喇叭形状，在进风口处为大口径，在叶轮1的前端处是小口径，当风5进入导风罩13后，随着导风罩13的面积逐渐缩小，风5的风力会逐渐变大，从而可提高风力发电的效率。如：当导风罩13的面积缩小一倍时，风力会提高一倍，一个风力发电机的发电效率相当于原来两个风力发电机的发电效率。
同时，当风5吹向叶轮1时，由于在旋转方向与风向相反的叶片3A外部设有遮风罩4，因而被遮风罩4所遮住的叶片3A将不受风力作用，而未被遮风罩4遮住的叶片3会受到风力作用而发生与风向相同的旋转，以致位于遮风罩4内的叶片3A的旋转方向与风向相反，且旋转过程中只受到遮风罩内的静态空气6的阻挡作用，由于静态空气6内的风速为零，因此旋转方向与风向相反的叶片3A所受风阻相对于原有技术可显著降低，以致风能的能耗显著降低，从而可进一步显著提高风能的利用率。
实施例2
如图2所示，本实施例提供的高效风力发电装置，与实施例1提供的高效风力发电装置的不同之处在于：所述叶片3为弧形叶片，使未被遮风罩4遮住的叶片3B的弧形凹槽是迎风而设，而被遮风罩4所遮住的叶片3A的弧形凹槽是背风而设，这样可使未被遮风罩4遮住的叶片3B相对于直形叶片能接受更大的风力作用，而被遮风罩4所遮住的叶片3A所受阻力更小，从而风能损失更小，可比实施例1进一步提高风能的利用率。
实施例3
如图3所示，本实施例提供的高效风力发电装置，与实施例2的不同之处在于：在所述弧形叶片3的两端设有挡板7，在两挡板之间设有多块(图3中示出了3块)分隔板8，所述弧形叶片3被分隔成四段，每段的空间只有原来的四分之一。当风吹向弧形叶片3时，不仅在挡板7的作用下，可将两端的风力锁住，而且通过分隔板8的作用，将横向扩散的风也进行了锁定，从而相对于实施例2，本实施例可进一步提高风能的利用率。
实施例4
如图4所示，本实施例提供的高效风力发电装置，与实施例3的不同之处在于：在垂直固定于地面9的支撑杆10上端设有平面轴承11，在平面轴承11的两侧对称设有叶轮1，在所述叶轮1的叶片3两端设有挡板7，在两挡板之间设有多块(图4中示出了3块)分隔 板8，所述叶片3均被分隔成四段；在所述平面轴承11的上方设有导向舵12，导向舵12与叶片3垂直，导向舵12在转动时会带动叶片3水平同步转动。当风向发生改变时，导向舵12会受到风力作用产生旋转，在旋转时会通过平面轴承11带动叶片3也同步旋转，从而始终保持与风向垂直方向旋转，获得最大的风力。
实施例5
如图5所示，本实施例提供的高效风力发电装置，与实施例2的不同之处在于：在未被遮风罩4遮住的叶片3B的外周设置U形束风槽14，U形束风槽14的开口端为进风端，U形束风槽14可使吹向未被遮风罩4遮住的叶片3B的气流被束缚在U形束风槽14内，避免被风吹的气流向四周扩散而损失，从而可进一步提高风能的利用率。
当然，U形束风槽14可以与导风罩13连接成一个整体，以便加工和安装，降低制造成本。
最后需要在此指出的是：以上仅是本发明的部分优选应用例，不能理解为对本发明保护范围的限制，本领域的技术人员根据本发明的上述内容做出的一些非本质的改进和调整均属于本发明的保护范围。

Claims (14)

  1. 一种高效风力发电装置，包括叶轮和叶轮轴，所述叶轮包括叶片，在旋转方向与风向相反的叶片外部设有遮风罩；其特征在于：在所述叶轮的前端设有导风罩，所述导风罩的口径由大变小，在进风口处为大口径，在叶轮的前端处是小口径。
  2. 根据权利要求1所述的高效风力发电装置，其特征在于：所述遮风罩能根据气流方向沿叶轮轴的旋转调节气流量。
  3. 根据权利要求1所述的高效风力发电装置，其特征在于：在所述遮风罩上设有开合门。
  4. 根据权利要求1所述的高效风力发电装置，其特征在于：所述叶片为弧形叶片或螺旋形叶片。
  5. 根据权利要求1或4所述的高效风力发电装置，其特征在于：在叶片的两端设有挡板。
  6. 根据权利要求5所述的高效风力发电装置，其特征在于：在所述挡板上设置传动轮，所述传动轮与发电机相连接。
  7. 根据权利要求5所述的高效风力发电装置，其特征在于：所述叶片上设有至少一块分隔板，使所述叶片被分隔为多段。
  8. 根据权利要求1所述的高效风力发电装置，其特征在于：在所述叶轮轴上安装有至少一个输出轮，所述输出轮具有离合功能。
  9. 根据权利要求1所述的高效风力发电装置，其特征在于：所述高效风力发电装置还包括U形束风槽，叶轮位于所述U形束风槽内。
  10. 根据权利要求9所述的高效风力发电装置，其特征在于：所述U形束风槽的前端与导风罩的后端连接为一体。
  11. 根据权利要求1或10所述的高效风力发电装置，其特征在于：在所述导风罩上设有开合门。
  12. 根据权利要求1所述的高效风力发电装置，其特征在于：在所述叶轮轴的中部垂直设有风向调节轴，所述风向调节轴能根据风向变化自动调节叶轮轴与风向保持垂直。
  13. 根据权利要求12所述的高效风力发电装置，其特征在于：在叶轮上或叶轮轴上或风向调节轴上设有导向舵。
  14. 根据权利要求1所述的高效风力发电装置，其特征在于：在风力发电机的上方设有太阳能电池板。
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