JP2020026796A - Wind turbine for wind power generation with wind speed accelerator - Google Patents

Abstract

To solve a problem in a conventional wind turbine in the wind power generation in which it is rotated by the wind being left up to weather, and the wind speed cannot be accelerated without using an artificial accelerator.SOLUTION: A venturi part is provided in the terminal of a normal wind flow in a wind collection wall to accelerate a flow rate, and thereby rotational force of a wind turbine is increased by the accelerated wind to provide further efficient power generation. Also, a windproof cover is provided in order to exclude the resistance wind other than the favorable wind intended for rotating the wind turbine, and thereby a venturi effect is improved furthermore and the power generation efficiency can be improved. Also, even as for the breeze being not useful conventionally, new power generation can be obtained by being accelerated in the venturi part.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a technology relating to a wind turbine for wind power generation.

  In a conventional wind turbine for wind power generation, the wind turbine rotates according to a certain amount or more of wind power. In other words, there was a weak point that the windmill was difficult to rotate if the wind was weak.

  For this reason, the shape and configuration of the wind turbine are devised in various ways, such as propeller type, Dutch type, multi-blade type, sail type, etc. for the horizontal axis wind turbine, and paddle type, S-shaped, Saponius type, straight blade type, Darrieus type for the vertical axis wind turbine. , A cross-flow type, etc. have been proposed and put into practical use, but are still in the process of development.

  However, all of these devised utility aircraft are weather-dependent, and it is up to you how much the wind blows.

  The conventional technology has not been able to completely control the wind power and the air volume. It was just an idea of how to catch the wind efficiently.

The number of searches for J-PlatPat is 0 (search words are wind turbine, structure, wind speed accelerator, venturi section, venturi effect)

  The conventional wind turbine described above has a configuration in which the rotation of the wind turbine cannot be obtained unless there is a certain amount of wind power depending on the type of the wind turbine.

  The present invention is intended to solve the problem of such a conventional configuration, and has an object to increase the wind speed with a weaker wind power than the conventional configuration to increase the rotational force of the windmill. is there.

  Therefore, in order to achieve the above object, the present invention provides a wind collecting wall that takes in wind on an extension of the windmill shaft. The wind collecting wall is a thin plate and is installed in a circular or arbitrary shape. The wind collection port on the windward side of the wind collecting wall is large, and the venturi section on the leeward side is small, and both are opened to allow the wind to flow.

  The cross-sectional area on the leeward side in the open state is made larger than that on the leeward side. That is, a configuration for generating the Venturi effect is provided.

  As described above, in the wind turbine for power generation of the present invention, the wind collecting wall is erected on the extension of the wind turbine shaft, and the leeward side is further narrowed to generate the Venturi effect, thereby obtaining the effect of increasing the wind speed.

  Therefore, the wind collection wall can efficiently supplement the weak wind force and increase the wind speed by the Venturi effect. It is.

  Assuming that the sectional area of the air collecting port is A and the sectional area of the venturi section is B, the wind speed of the venturi section increases in inverse proportion to B / A.

  Further, by providing a weather vane on a device in which the wind collecting wall and the windmill are integrated, it is possible to accurately catch the wind, secure a wind speed several times higher than the daily wind speed, and increase the power generation efficiency.

A plan view of a vertical axis wind turbine in which a wind collecting wall, a venturi section and a windbreak cover are integrated Front view Same left side view Front view of horizontal axis windmill Same, AA cross section left side view

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

  In the drawing, 1 is a wind collecting port for taking in wind blowing in the air, 2 is a wind collecting wall for guiding the taken wind to the venturi section, and 3 is a wind speed which concentrates the induced wind. 8 is an exhaust wind accelerated by the venturi section, and the wind turbine 5 is rotated by the accelerated exhaust wind, so that it is possible to generate power in a weak wind. . In addition, it is structured to further increase the efficiency of power generation under stronger winds.

  The wind outside the wind other than the exhaust wind 8 takes a resistance wind against the windmill, and the wind speed and the wind force are halved. Therefore, the windproof cover 6 is attached to the entire windmill to eliminate the resistance wind and maximize the venturi effect. Has become.

  The shape and size of the windproof cover are optional.

Claims (2)

  A wind accelerating device with a wind inlet, a wind collecting wall, and a venturi section for the purpose of rotating a windmill with stronger wind power than normal wind power.   A windbreak cover provided to eliminate the resistance wind passing on the opposite side against the forward wind acting in the direction in which the windmill rotates.

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