• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Wind turbine (30) comprising: horizon | t rotating vanes (10) which are connected via arm devices (9) to a vertical axis of rotation (3), which is arranged to a support structure (1), and is further arranged with guide shields (6, 7) and a straightener (5). The guide screens (6, 7) and the straightener (5) are arranged on the respective support frames (16, 17, 18) which in their lower region are arranged on the support structure (1) outside the vertical axis of rotation (3) of the vanes (10).
    公开号:SE1150557A1
    申请号:SE1150557
    申请日:2011-06-20
    公开日:2011-12-30
    发明作者:Yngve Bjoernsti
    申请人:Yngve Bjoernsti；
    IPC主号:
    专利说明:

    A fourth object is that the wind turbine, as mentioned above, should be able to have a compact construction, it should be cheap and easy to manufacture and also to maintain. It must be flexible in such a way that it can be adapted for many types of purposes, such as placement in larger wind farms, but can also be used in smaller wind farms or as a single standing wind turbine. The wind turbine must also be manufactured in a limited number of parts.
    It must be easy to transport to the construction site and be able to be assembled there in a simple and efficient way.
    The objects of the present invention are achieved with a wind turbine comprising: horizontally rotating vanes which are connected via arm devices with a vertical axis of rotation which is arranged to a support structure, and is further provided with guide screens and rectifiers, characterized in that the guide screens and straighteners are arranged on their respective support frames which in their lower area are arranged to the support structure outside the vertical axis of rotation of the vanes.
    Preferred embodiments of the wind turbine are further specified in claims 2 to 6.
    The wind turbine according to the present invention will now be described with reference to the accompanying drawings, in which: Fig. 1 shows an embodiment of a wind turbine seen from the side, i.e. normally against the incident wind direction, Fig. 2 shows the wind turbine seen from the incident wind direction, Fig. 3 Fig. 4 shows a design of the wind turbine seen from above with movable control screens for use on large wind turbines in strong winds, Fig. 5 shows bearing holders for vertical axis of rotation and control shields, Fig. 6 shows the vertical axis of rotation itself, Fig. 7 shows a detail of the wind turbine blade, and Fig. 8 shows a detail of a wedge device between a retainer and the axis of rotation.
    With reference to the figures and preferably Fig. 1, a wind turbine is shown. The wind turbine comprises a frame or support structure 1 which in the present embodiment consists of four legs which are arranged in the base. The support structure 31 is stiffened with walls and will serve as a machine housing for a generator. On the upper area of the support structure 1 a bearing holder 2 for a shaft 3 is arranged. On the outside of the bearing holder 2 a bearing holder 4 is mounted which has holders for windscreens 6, 7 and a straightener 5. The straightener is arranged to pivot the windscreens 6 , 7 so that they were constantly facing the wind. Fig. 5 shows a detail of the bearing holders comprising the bearing holder 2 for the shaft 3 and the bearing holder 4 for the windscreens 6, 7 and the straightener 5. The shaft 3 is shown in the center of the figure with surface bearing 14.
    The purpose of the left control screen 6, seen in the direction of incidence of the wind, is to direct the wind into a turbine bowl or vane 10 so that the wind force begins to act while the vane 10 is in the front position. The purpose of the windscreen 6 is also to prevent the vanes 10 from meeting resistance on their return and thus losing power. The right steering screen 7, seen in the direction of incidence of the wind, has the purpose of guiding the wind which is caught by the steering screen 7 into the rear vanes 10 so that half the circle of the turbine wheel is utilized by the wind. When the air flow from the control screen 6 and the vanes 10 hit the air flow from the control screen 7, the air flow will accelerate and the rotational speed of the turbine wheel increases correspondingly. It should be noted that the location of the control screen 7 is a main element for obtaining a good effect from the wind turbine 30.
    Referring to Fig. 1, which is otherwise seen perpendicular to the incident direction of the wind, the control screen on the left will guide the wind into the vanes 10 so that the rotation starts in early phase and at the same time prevents the wind from slowing the rotation of the vanes 10. The control screen on the right is the one that really accelerates the blades or impeller and thus the wind that is controlled from the left steering screen and the turbine and the funnel shape that the wind gets from the right screen accelerates the rotation of the turbine greatly.
    The protruding location of the control screens 6, 7 covers a large square which means that much of the wind is caught. This construction means that the entire right side of the turbine wheel will produce power.
    Referring to Fig. 6, the shaft 3 is shown arranged with a stop ring and an upper part which has a square design and which is the foundation on which a retainer or arm device 8 for the turbine blades 10 is lowered. The 4 construction parts stated above are preferably fastened with screw devices.
    Referring to Fig. 7, the turbine blade 10 is shown. The turbine blade 10 is divided into two chambers with an almost semi-cylindrical design. Each chamber is formed by a semicircular rear wall, a vertically extending central support wall 13 and horizontal connecting walls, respectively a partition wall 11 and an end wall 12. This design of the vanes 10 means that the vanes 10 make optimal use of the incoming wind. .
    It should be noted that previously known wind turbine solutions normally have a solution where the windscreens are attached to the top of the shaft or to a frame in which the turbine blades are mounted. This construction will place a large load on the shaft and a limitation will therefore be that the control shields must reduced in size. In accordance with the present invention, the storage of the control screens is directly attached to the support structure 1, which means that it is possible for control screens with a large area which can be used, for example, in connection with large wind turbines and strong winds.
    Referring to Fig. 5, as mentioned above, the turbine blades 10 are two-part to be adapted to the air currents supplied by the control screens 6, 7. The purpose of the vanes 10 is to stop and capture the wind speed and due to the two-part design of the vanes 10 a relatively small chamber will be achieved, whereby the air pressure increases and there is a more "explosive run" of the turbine which leads to increased rotational speed and more force.
    With particular reference to Fig. 2, a mounting arm 16 and a mounting arm 17 for the control screen 6 and the control screen 7, respectively, are shown. A mounting arm 18 is also shown for the straightener 5.
    Fig. 4 shows an embodiment of a wind turbine 10 which is a so-called "large wind turbine". During operation, especially in connection with strong winds, the control screens will be exposed to large forces and in such cases it may be necessary that the control screens "provide after ”so that the structure is not exposed to harmful loads. Therefore, an arm 19 is provided which is attached to the outer bearing holder and the guide shields 6, 7. A suspension bolt 20 is also provided which holds the guide shields and the arm together. A pipe 21 with an internal spring which can be extended if an extremely strong wind occurs is also shown, whereby the guide screens 6, 7 are bent away from the wind. Due to the spring, the control screens 6, 7 will return to their original positions when the wind decreases. A support rod 22 holds together the mounting arms of the guide screens 6, 7 and a support rod 23 holds together the guide screen 7 and the straightener 5.
    The wind turbine 30 of the present invention is designed to be used in extreme conditions throughout the year. A problem that can arise especially in winter in addition to very strong winds, is that the control screens 6, 7 and the rectifier 5 can be iced down. To remedy this problem, guide lines 24 are provided which connect the control screens 6, 7 and the straightener. This gives the control screens 6, 7 and the straightener 5 greater load-bearing capacity in the event of icing and gives the control screens 6, 7 better support in strong winds.
    Referring to Fig. 8, there is shown a wedge device 25 which acts as an adjustable connection between the vertical axis of rotation 3 and the holder 8 for the arm devices 9. Over time, wear and noise due to play can occur when metal strikes metal. This is remedied by the fact that the wedge device 25 is self-adjusting and the system will thus function without time-consuming readjustment.
    The wind turbine according to the present invention has been found to give a very high efficiency under varying operating conditions. The air flow is controlled so that all the blades on the turbine wheel are utilized by the incoming air flow and also those that are in the rear part of the turbine wheel in relation to the incoming wind. Due to the unique design of the control fenders, the straightener and the blades, an extremely good utilization of the wind power is achieved.
    In addition, the wind turbine has a compact and cost-effective construction with regard to production and composition at the relevant placement site. The wind turbine also has a design that causes significantly less inconvenience to the environment than existing solutions.
    权利要求:
    Claims (6)
    [1]
    A wind turbine (30) comprising: horizontally rotating vanes (10) connected via arm devices (9) to a vertical axis of rotation (3), which is arranged to a support structure (1), and is further provided with guide shields (6, 7 ) and straightener (5), characterized in that the guide screens (6, 7) and the straightener (5) are arranged on their respective support frames (16, 17, 18) which in their lower region are arranged to the support structure (1) externally if the vertical axis of rotation (3) of the blades (10).
    [2]
    Wind turbine (30) according to claim 1, characterized in that the control screens (6, 7) and the straightener (5) are connected to each other in their upper areas by support devices (24).
    [3]
    Wind turbine (30) according to claim 1 or 2, characterized in that the left control screen (6) has a larger surface area than the right control screen (7) seen in the incident wind direction parallel to the longitudinal direction of the straightener (5).
    [4]
    Wind turbine (30) according to one of the preceding claims, characterized in that the surface center of the left guide screen (6) has a smaller distance to an axis through the longitudinal direction of the straightener (5) than the surface center distance of the right guide screen (7) to the same axis.
    [5]
    Wind turbine (30) according to one of the preceding claims, characterized in that the blades (10) of the wind turbine each comprise two chambers with an approximately semi-cylindrical design.
    [6]
    Wind turbine (30) according to one of the preceding claims, characterized in that the vertical axis of rotation (3) is connected via a wedge device (25) to a holder (8) which is arranged to the arm devices (9).
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    同族专利:
    公开号 | 公开日
    NO20100941A1|2011-12-30|
    SE536041C2|2013-04-09|
    NO331958B1|2012-05-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2019-01-29| NUG| Patent has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    NO20100941A|NO331958B1|2010-06-29|2010-06-29|Wind turbine|
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