JP2014101756A - Wind power generation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive wind power generation device stable in power generation by improving power generation efficiency by taking in wind which normally passes by a wind turbine, thereby utilizing even gentle wind for power generation.SOLUTION: A wind power generation device includes: a wind turbine including a power generation device; and an air trunk receiving natural wind and distributing the same to the wind turbine as drive force. The air trunk is gradually narrowed from a wind inlet toward an outlet to increase power of wind discharged from the outlet for driving the wind turbine. As the wind which normally passes by the wind turbine, can be taken in, the power generation efficiency is increased, and further as velocity of even gentle wind can be increased to be utilized in power generation, electric power can be stably obtained. Further as a structure of the air trunk is simple, a cost for the same can be reduced, which contributes to cost reduction of electric power.

Description

  The present invention relates to a wind power generator that converts wind energy into rotational energy by receiving wind kinetic energy with a windmill and rotates a generator with the rotational force.

  Wind power generation does not use coal, oil, or natural gas, which generates carbon dioxide as fuel, unlike conventional thermal power generation, and does not require large-scale dams that cause natural destruction like hydroelectric power generation. Unlike those fuels that will eventually be depleted, the main feature is not to use dangerous uranium fuel, and wind power is used where renewable energy is always generated by the natural world over use. There is a big feature of power generation.

  Moreover, there is no destruction of the global environment, represented by the warming of the atmosphere, the low self-sufficiency rate of energy can be improved, and the solution to the problems of revitalization of the industry and creation of jobs is also answered. Wind power as energy has such characteristics that it is abundant, inexpensive, clean, inexhaustible, widely distributed and recyclable, and nothing other than wind power has these characteristics.

  Currently, 100% of large wind power generators are propeller type three-blade wind turbines with a horizontal axis (horizontal axis). The reason why the vertical axis (vertical axis) Darius type wind turbine is not used is not that the horizontal axis wind turbine has a technical advantage. It is said that it is only contained. The vertical axis of Darrieus type wind turbines is considered to be advantageous for vertical terrain wind turbines that are responsive to the wind direction, especially in complex terrain such as Japan, where wind direction changes rapidly. It is said that superiority or inferiority is not settled.

  The superiority or inferiority has the above-mentioned problem, but eventually it is settled by the power cost. One of the most important is how to capture wind power efficiently. A wind power generator is a stable renewable energy that can be operated day and night, regardless of the weather, although it is called “wind breeze”.

  As to how to capture wind power, whether it is horizontal or vertical, the pillars or ridges are set up on the flat ground or the sea, and the wind turbine receives the wind in the sky with less obstacles through it to improve efficiency. However, in order to use only a certain width of wind that goes to the front, it is a result that it misses the wind that passes away from it and passes through on both sides. In addition, it is difficult to operate when it is close to a windless state.

  In view of the above circumstances, the present invention increases the power generation efficiency by taking in the wind that passes through the side of the wind turbine, and is stable in power generation because it can be linked to power generation even with a breeze. Therefore, an object of the present invention is to provide a wind turbine generator that does not require much cost.

  In order to solve the above problems, the present invention comprises a windmill provided with a power generator and a wind passage that receives natural wind and sends it to the wind turbine as its driving force, and the wind passage extends from the wind inlet to the outlet. The wind power generator is characterized in that it is configured so as to be gradually narrowed toward, thereby accelerating the momentum of the wind emitted from the discharge port that drives the windmill.

  Since the wind power generator is configured as described above, when the wind blows toward the inlet of the wind passage, it increases the power by passing through the narrowing of the wind passage, and blows to the wind turbine from the outlet. It is done.

  As described above, according to the present invention, it is possible to take in the wind that normally passes through the side of the windmill, thereby increasing the power generation efficiency and increasing the momentum even with a breeze. It can be connected to power generation and can stably obtain electric power, and since the structure of the air passage is simple, the cost required for this is not so high, and there is an excellent effect that it is suitable for low cost of electric power.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a wind turbine generator in which a windmill has a vertical axis as an embodiment of the present invention. It is explanatory drawing which looked at the wind power generator from the plane. It is a perspective view of the vertical axis | shaft type wind power generator which shows the principal part of the example of the said Example as another Example. It is a perspective view which shows the horizontal axis | shaft type wind power generator as another Example of this invention. It is a side view which shows the mountaintop part as the installation location of a windmill with the wind power generator.

  The present invention can be applied to a wind turbine of either a vertical axis or a horizontal axis. Incidentally, examples of the vertical axis type windmill include a crossflow type windmill, a Saponius type windmill, a gyromill type windmill, a Darrieus type windmill, and the like as shown in the following examples.

  FIG. 1 and FIG. 2 show an embodiment, and the wind power generator is a small-sized one that can be said to be used for a general household or a small-sized device that is installed and used in a work place or the like. The windmill 1 has a vertical shaft shape, and a cylindrical bearing 7 that receives the vertical shaft 5 of the windmill is rotatably installed on an installation base 3 that is placed and fixed on a fence, a base, a roof, or the like. The bearing 7 is provided with a horizontally long arm 9, front and rear columns 9 a and 9 b are erected on the arm 9, and an air passage 11 is attached thereto. In addition, a case 13 is provided on the installation base 3, and a generator 15 and the like are housed therein.

  In this case, the windmill 1 has a cross-flow shape in which a large number of blades 17, 17,... Are arranged around the vertical axis 5, and the blade 17 has an arc-shaped cross-sectional shape that curves in the wind direction. A rotational force is obtained by receiving the wind force at A on the concave surface at A and allowing the wind force to escape at the half B at the convex surface.

  The air passage 11 is made of a plastic sheet, and is held in a horizontal rectangular tube shape by a rib structure (not shown) such as an umbrella bone. Since one end opens widely as the inlet 19 in the wind direction W, and the width and width gradually become smaller and the other end narrowly opens as the outlet 21, the wind (W) entering from the inlet 19 It is discharged from the additional discharge port 21.

  Since the discharge port 21 opens in the half A where the blades 17 are concave with respect to the wind direction, a strong rotational force is obtained by the reinforced wind in the half A, and the reinforced wind in the other half B (the blade Since no resistance is applied to the 17 reverse rotation S), a strong high-speed rotation of the windmill 1 is obtained.

  In order to obtain this high-speed rotation state, it is necessary for the wind path 11 to always face the wind direction W at the receiving port 19, and for this reason, an azimuth restriction device using a wind vane wind vane 23. 25 is installed in the case 13.

  As for the direction regulating device 25, an anemometer 23 is attached to the upper end of the vertical axis 5, the direction is detected and analyzed by a computer, and the direction of the arm 9 is adjusted in the most appropriate direction. That is, the arm 9 is always held parallel to the wind direction W. It is also possible to provide the tail blade 26 on the bearing 5 and use it as a direction regulating device.

  FIG. 3 shows an example 2 of the similar example. In the case of the first embodiment, the discharge port 21 of the air passage 11 is applied only to the half A of the windmill 1. However, in the case of the second embodiment, the air passage 11 is divided into two hands 11a and 11b, and for the wind turbine 1, all the blades are applied by applying the discharge ports 21 and 21 to the half A and the half B, respectively. 17, 17,... Are made to act on the rotation at any position (there is no resistance to the backward rotation of the blade 17).

  FIG. 4 shows an example of a horizontal axis wind turbine. The wind power generator P is the most commonly used propeller form. Although the windmill 1 is erected on the top of the mountain 29, since the windmill 1 is at a high top position, the low-form windmill 1 is used without any problem, and the propeller 30 is inclined toward the bottom of the mountain. The tilt adjustment is possible and the wind Wa from the air passage 11 is easily received.

  In this figure, the front side is the sea, and the wind direction W alternates day and night from the sea to the land and from the land to the sea, and the direction function that faces the wind direction of the windmill 1 selectively captures the wind direction of both the land and the sea for power generation. Is made. However, unlike the conventional one, on the slope of the mountain 29, the air passages 11, 11 are provided on both sides of the sea side and the mountain side.

  The air passages 11 and 11 are provided with two concrete walls 31 and 31 extending from the middle toward the wind turbine 1 so that the width between the walls 31 and 31 is gradually narrowed. Therefore, not only can the double wind power be strengthened by the narrow passage, but also a large wind receiving stance that can use a slight wind is added to the wind direction W that goes straight to the windmill 1 and the enhanced wind Wa that runs up the mountain surface. To be acquired.

P wind power generator
W Wind direction A, B Half 1 Windmill 3 Installation base 5 Vertical shaft 7 Bearing 9 Arm 11 Air passage 11a, 11b Second hand 13 Case 15 Generator 17 Blade 19 Receiving port 21 Discharge port 23 Anemometer 25 Direction regulating device 29 Mountain 30 Propeller 31 walls

Claims (3)

  It consists of a windmill equipped with a power generation device and a wind path that receives natural wind and sends it to the wind turbine as its driving force. The wind path is formed by gradually narrowing it from the wind receiving port to the discharge port. A wind power generator characterized in that the momentum of the wind discharged from the discharge port that drives the vehicle is accelerated.   In a vertical axis wind turbine in which blades are arranged around the vertical axis, a bearing that supports the vertical axis is rotatably provided on the installation base, and a cylindrical wind path is provided on the bearing by projecting an arm. It is installed and the outlet of the air passage is opened in the half of the windmill, or in the half and the half that are opposed to each other about the vertical axis in two hands, and the wind direction is captured by an anemometer. 2. The wind turbine generator according to claim 1, further comprising an azimuth restricting device for rotating the bearing so that the air passage is always opened to be held with respect to the wind direction. A horizontal-axis type wind turbine that can adjust the angle by tilting the propeller is installed at the top of the mountain, and at least two guide walls are installed on the mountain surface that is highly inclined toward the top of the mountain. And having a discharge port at the upper end, and the wind path is configured so that a wind up slope is formed between the guide walls by receiving a substantially constant wind such as sea breeze or land breeze. The wind power generator according to claim 1.

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