JP5361026B1 - Wind direction control device 2 of windmill - Google Patents

Abstract

[PROBLEMS] To take advantage of a vertical wind turbine and eliminate the phenomenon that a rotating torque cross is generated by one of the rotor blades when wind is simultaneously received by both the left and right blades of the wind turbine shaft.
The four control plates 7 and auxiliary plates 11 that are standing on the ground and installed at equal intervals on the outer periphery of the wind turbine prevent the flow of wind to one rotor blade, and wind only to the other rotor blade. In addition, let's provide a vertical axis wind turbine with increased rotational efficiency by generating turbulent flow behind the wind turbine blades by using the turbulent flow plate 8 to create a low pressure part and increasing the wind speed to the wind turbine blades. It is what.
[Selection] Figure 1

Description

      BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind turbine wind direction control device for controlling the wind direction in order to increase the rotational force conversion efficiency of a vertical axis wind turbine, thereby increasing the rotational force of the wind turbine and obtaining power for driving a generator and a pump. is there.

      Conventional vertical wind turbine devices have examples of inventions as shown in the following patent documents, but all have the disadvantages that structural design is unreasonable, the structure is complicated, the manufacturing cost is high, and maintenance is difficult. It was.

JP-A-3-202679 JP 2005-9473 A Japanese Patent No. 4826932

    The present invention has been made in view of the above circumstances, taking advantage of the vertical axis wind turbine, simultaneously receiving wind on the left and right wings of the wind turbine shaft, which is a drawback, generating torque on the one hand, generating torque cross on the other, In order to eliminate the disadvantage that the subtraction output is small, the wind direction control plate and auxiliary plate standing on the ground prevent wind turbine blades from receiving left and right, and wind is introduced only into the other to reduce torque loss to zero. The purpose of this invention is to provide a vertical axis wind turbine in which a low pressure portion is generated by turbulent flow in the rear and the wind speed is increased to maximize the rotation efficiency.

(1) A control plate and an auxiliary plate that prevent wind from being applied to one wing on the left and right of the wind turbine axis and receive wind only on the other wing, regardless of the wind coming from any direction.
(2) The control plate and auxiliary plate shall have a structure that guarantees the strength to withstand strong winds.
(3) The turbulent flow plate creates a low-pressure region on the leeward side to strengthen the wind flow.

(1) The control plate and auxiliary plate are fixed to the ground in a circularly symmetrical manner on the four sides of the outer periphery of the wind turbine blade, and the wind from any direction efficiently flows into only one of the left and right sides of the wind turbine shaft to increase the wind turbine rotation efficiency.
(2) The control plate and auxiliary plate are fixed to the ground and connected with a top plate to prevent escape to the wind and ensure strength to withstand strong winds.
(3) A turbulent flow plate is provided at the tip of the control plate to create a low-pressure region on the leeward side and enhance the ventilation speed to the windmill.

By the above solution, the following points are greatly improved as compared with the conventional product.
(1) The control plate and auxiliary plate are fixed to the ground in four directions on the outer periphery of the wind turbine in a circularly symmetrical manner, so that the wind from all directions is controlled to be applied only to one of the left and right wings of the wind turbine shaft, thereby improving the wind turbine rotation efficiency. .
(2) The control plate and the auxiliary plate are connected by a top plate, prevent the wind from escaping to the sky, and have the strength to withstand strong winds.
3) A turbulent flow plate can be provided at the tip of the control plate to create a low-pressure region on the leeward side and enhance the ventilation speed to the wind turbine blades.

Top view excluding the top plate Side sectional view of this plan (A-A 'section in Fig. 1)

The structure and operation of the present plan will be described below with reference to FIGS.
The root of one vertical axis in FIG. 1 is embedded in the ground and fixed with a 10 vertical axis holder. The three wind turbines are composed of six wind turbine shafts and four wind turbine blades, and the center of the four wind turbine blades is provided with a recess 4a toward the rotation direction. In this example, four blades are provided. It may be a single wing.
The upper and lower ends of the six wind turbine shafts are fixed to one vertical shaft rotatably by two bearings A, and in the vicinity of the outer periphery of the four wind turbine blades, on the line of 90 degree pitches in the vertical and horizontal directions around the four wind turbine shafts, The four 7 control plates in a circularly symmetric manner extend at an angle of approximately 45 degrees to the position where they intersect the outer diameter line of the three wind turbines, and then bend on the outer diameter line of the three wind turbines to have a fixed length. 8 turbulent flow plates are formed, embedded and fixed on the ground, and combined with 5 top plates to ensure the strength of the stance.
Further, in the vicinity of the outer periphery of the four wind turbine blades, four eleven auxiliary plates that are circularly symmetric from the position deviated from the seven control plates by 45 degrees intersect each other on the outer diameter line of the three wind turbines at an angle of about 45 degrees. Inclined to the position.
The four 7 control plates and the 11 auxiliary plates are installed regardless of the number of the 4 wind turbine blades, and correspond to the wind direction coming from any direction around the 3 wind turbine shaft. Only the wings receive wind.
The 11 auxiliary plates are supplementarily effective for dealing with winds coming from an oblique direction, and the 4 wind turbine blades are sufficiently effective only for the 7 control plates for winds coming from the top, bottom, left and right.
In addition, as shown in FIG. 2, a 9-generator drive gear is attached to the lower end of the 6 wind turbine shaft, and is designed to drive a generator (not shown).
Of course, a pump or the like may be driven instead of the generator.

Next, the working principle of the present plan and the focus of the invention will be described.
Originally, a vertical axis wind turbine has a large blade area and should be able to increase the wind turbine output, but one of the reasons for the smaller output compared to the propeller wind turbine is that the blades on the left and right of the wind turbine shaft receive wind, one of which receives the wind This is because even if torque is generated, the other blade receives a headwind and generates torque loss, thereby reducing the total output. Conventionally, as shown in the above-mentioned reference patent, the wing on the side facing the wind is leveled to minimize the loss. However, the loss cannot be reduced to zero and the operating mechanism becomes complicated. As a result, the cost was high and failure factors increased, making it difficult to put it to practical use.
Therefore, the inventor fundamentally reconsidered, and as shown in the present plan, the 7 control plates and 11 auxiliary plates which are inclined in front of the wind turbine blade on the side receiving the reverse wind are provided to avoid the reverse wind and receive the wind as a normal wind. Concentrate on the wing on the side, and provide 8 turbulent plates that create turbulent flow behind the wing on the front wind side to form a low pressure part, and the pressure of the air flow forms the input side + and the discharge side-. By increasing the wind speed, the blade torque loss on the windward side was reduced to zero, and the pressure receiving area of the blade on the windward side was large, resulting in higher output than the propeller wind turbine.
The specific operation principle of the present plan will be described with reference to FIG.
The wind direction X in Fig. 1 is indicated by a solid line and flows from the right side to the left side. The wind above the horizontal center line of the 6 wind turbines flows downward by the slope of the 7 control plate shown at the upper right and concentrates on the 4 wind turbine blades. The wind below the outer diameter of the 4 wind turbine blades passes through the 11 auxiliary plates in parallel, flows upward on the slope of the 7 control plate shown at the lower right, concentrates on the 4 wind turbine blades, and further lower The wind turns to the lower side of the 8 turbulent flow plate and generates a vortex on the leeward side to generate a low pressure part, and the + high pressure on the inflow side is sucked to the low pressure side due to the turbulent flow, The effect which raises the inflow pressure to 4 windmill blades is demonstrated.
Although the above description is for the case where the wind direction flows from right to left, even when the wind direction flows from left to right, or from the top to the bottom and from the bottom to the top, 7 control plates and 8 turbulent flows. Since the four plates are arranged in a circular symmetry, they are designed to perform the same function. The wind direction Y, which is 45 degrees apart from the wind direction X, is indicated by a dotted line, and the wind above the 6 wind turbine shaft is stopped by the 11 auxiliary plates, flows into the 4a blade dent side obliquely below, and is below the 6 wind turbine shaft. The wind is directed to the wing dent side of 4a and is designed to produce the same effect as wind direction X.
The 5 top plate is a disk connecting the upper side of the 4 wind turbine blades and the upper end of the 7 control plate, and the wind flowing on the ground escapes to the upper side when compressed to one 4 wind turbine blade area by the 7 control plate. In addition, the 7 windshield 7 and 11 auxiliary plates and 6 wind turbine shafts can be connected and dispersed to the 4 7 control plates and 11 auxiliary plates to increase the strength. It also serves to protect the environment so that sunlight, rain and snow are not directly applied to the three windmills.

At present, large wind turbines equipped with propeller blades on the horizontal axis have been adopted in advance. The reason for this is that the power generation efficiency of the horizontal axis wind turbine is good and suitable for large-scale power generation.
On the other hand, for home use, photovoltaic power generation is mainly installed, because the installation place is small and a propeller windmill cannot be installed.
However, solar power generation is only necessary during the daytime, and there is a requirement to be blessed with good weather, and wind power generation that can generate electricity when there is wind even during cloudy weather or at night is attractive. Therefore, a future plan to increase the amount of power generation at home is considered to be the hybrid of solar power generation and wind turbine power generation, but what must be urgently needed is a small vertical axis wind turbine with high power generation efficiency that can be installed at home. is there. This plan was developed to achieve its purpose. The wings on the side against the wind are controlled by the control plate and auxiliary plate to prevent inflow and the torque loss is zero. The wings on the side receiving the wind are controlled by the control plate and auxiliary plate. The wind is gathered to strengthen the wind power, and further, the turbulent flow plate generates turbulent flow behind the blades to create a low pressure part, and the wind speed is increased by the pressure difference to greatly improve the wind power conversion efficiency. .
In this proposal, it is possible to achieve a safe design with the simplest possible structure, low manufacturing cost, small space and low maintenance cost.

1 vertical shaft, 2 bearing A, 3 wind turbine blade, 4a blade recess, 5 top plate, 6 wind turbine shaft, 7 control plate, 8 turbulent flow plate, 9 generator drive gear, 10 vertical shaft holder, 11 auxiliary plate

Claims (4)

In a vertical axis wind turbine in which a wind turbine is rotatably attached to a fixed shaft fixed to the ground, the wind turbine is provided with four fixed-length blades radially from the center of rotation at equal pitches, and the wind turbine blades from the viewpoint of providing a little clearance between the end, a control plate extending from the radial line direction of the wind turbine blade in a direction inclined 45 degrees in the rotational direction opposite side of the wind turbine, in √2 doubleword of the wind turbine blade length of Standing from the ground, diverting the wind blown to the windmill rotation center side from the outside direction shifted by 45 degrees from the control plate surface, and preventing the windmill blade from flowing into the blade moving forward, the windmill blade The wind direction control device for a wind turbine is characterized in that the wind turbine is caused to flow into a wing that advances toward the leeward side to increase the rotational torque of the wind turbine.         The wind turbine wind direction control device according to claim 1, wherein radial direction directions of the wind turbine blades are respectively based on intermediate points on the circumference of the four control plates arranged on the outer end circumference of the wind turbine blade. Further, an auxiliary plate extending in a direction inclined by 45 degrees to the opposite direction to the rotation direction of the windmill is erected from the ground with a length √2 times the windmill blade length, and the windmill rotation is performed from an external direction perpendicular to the control plate surface. The wind blown to the center side is diverted to prevent the wind turbine blades from flowing into the blades proceeding to the windward side, and the wind turbine blades are caused to flow into the blades proceeding to the leeward side to increase the rotational torque of the wind turbine. The wind direction control device of the windmill characterized by the above-mentioned.         In the wind turbine wind direction control device according to claim 1, a turbulent flow plate having a certain length is extended at an outer end of the control plate by bending 45 degrees from the control plate surface direction to the rotation direction of the wind turbine, A wind blown to the wind turbine rotation center side from the outside direction shifted by 45 degrees from the control plate surface is applied to the turbulent flow plate to generate a turbulent vortex behind the turbulent flow plate and flow into the wind turbine blade. A wind direction control device for a wind turbine, wherein a rotational force of the wind turbine blade is increased by a pressure difference between a pressure and a negative pressure due to a turbulent flow behind the wind turbine blade. In the wind direction control apparatus of the windmill according to claim 1, the lower end of the control plate is directly fixed to the ground, and the upper end surfaces of the control plates are connected by a top plate to increase the stand strength of the control plate. A wind direction control device for a windmill, characterized in that it is secured.