JP2002285948A - Wind power generator with wind tunnel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wind tunnel power generator, having increased amount of power generation by providing a wind tunnel around a part ahead of rotary vanes and leading the wind quantity received by a widened area to the vanes, since improvement in conventional wind power generator whose output depends on the natural conditions to result in a decreased amount of power generation, when the wind is weak and the vanes rotate slowly. SOLUTION: The wind tunnel is attached to the periphery of the propeller front face of this wind power generator, so that the wind receiving area is increased, the wind pressure blowing to the rotary vanes is increased by a guide plate for the wind installed along the wind tunnel inner surface, efficiency of the rotation of the vanes for power generation is increased, and the amount of the power generated is increased.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind power generator in which a wind tunnel for increasing a wind receiving area is provided in front of a rotating blade for the purpose of increasing the amount of power generation in a light wind.

[0002]

2. Description of the Related Art A conventional wind power generator has a weak point that is affected by natural conditions. When the wind is weak, the rotation of the rotating blades slows down and the amount of power generation decreases. Further, a conventional wind power generator needs a column of a considerable height to receive wind blowing at a high position and to have long rotating blades.

[0003]

The power generation loss of the wind power generator due to the weak wind is due to a decrease in the wind pressure applied to the rotating blades. The present invention obtains a sufficient amount of wind for generating electricity under a weak wind, rotates the generator, and installs the wind turbine at a relatively low altitude to obtain the same wind power as high altitudes. provide.

[0004]

The wind power generator of the present invention is provided with a wind tunnel having an area of about 3 to 4 times the rotation area around the front of the rotating blades, an increased air flow, and a straightening plate provided inside the wind tunnel. The rotation speed of the rotating blades increases by increasing the wind speed by inducing a wind direction in the rotating direction of the rotating blades. In addition to the volume of air blown in front of the rotating blades, the volume of air in the front area of the wind tunnel, the wind generated by the direction of rotation of the rotating blades in the wind tunnel goes along the straightening plate on the inner surface of the wind tunnel and induces wind pressure in the direction of rotation of the rotating blades. Strong wind pressure. The introduced air volume and air pressure can increase the number of rotations of the power generation rotating blades more than when there is no wind tunnel.

In the present invention, in order to apply a wind pressure to the rotating blade even in a weak wind, it is necessary to always face the windward. A rotating system is driven by a signal from a sensor or a rudder method for directly facing the wind to the generator, and the generator body is directly faced to the windward.

[0006] The shafts of the generators are arranged in series by clutch coupling, and the number of couplings is increased according to the wind speed to increase the output.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of a wind generator with a wind tunnel according to the present invention will be described with reference to the drawings. The wind generator shown in FIGS. 1, 2 and 3 uses a rotating bearing 9 or the like installed inside a pedestal of a lower foundation 7 with a rear rudder 6 to start the generator when a weak wind starts to blow from a windless state. Turn upwind.

[0008]

Embodiment 2 The wind power generators shown in FIGS. 4, 5 and 6 have no rudder 6 equipment, a wind direction sensor 10 is provided at the upper part of the wind tunnel 1, and a rotary motor 8 is provided at the base inside the base 7 at the lower part. And turn the generator upwind.

[0009]

Embodiment 3 In each of the wind power generators shown in FIGS. 1 and 4, a plurality of power generators are connected in series with a rotary blade 2 in series by a clutch, and when the wind is strong, the power is automatically increased to increase the output. In a weak wind, only one generator is operated separately.

FIG. 7 shows the wind tunnel 1 of the wind power generator according to the present invention.
Will be described. The wind tunnel 1 has a strong wind structure. The eight support columns 4 from the tip and the eight internal support columns 4 support the entire wind tunnel 1, and the entire wind tunnel 1 and the entire upper part are connected to the lower part. The strut 4 becomes the rotating strut 5 and acts to withstand pressure in the strong wind direction. In addition, a special strong wind such as a typhoon can sufficiently withstand the entire structure.

[0011]

According to the wind generator with a wind tunnel of the present invention, even if the wind is weak, the total area of the wind receiver around the tip of the wind tunnel and the guidance of the curved plate inside the wind tunnel act to accelerate the rotation of the generator and output the shaft power. Has the effect of increasing. The energy of the wind per square is proportional to 0.5, which is the value obtained by multiplying the air density (1.29 kg / m3) by the cube of the wind speed, and the power generation output is proportional to the wind receiving area. The wind tunnel of the present invention has a shape in which the outlet is narrowed like a funnel, and increases the wind speed impinging on the propeller. The propeller is always turned upwind, and the output of the propeller shaft increases due to the effect of the current plate provided on the inner surface of the wind tunnel. The amount of power generation is 3 to 4 compared to without wind tunnel
Get twice the output. In addition, it has a strength structure that can sufficiently withstand strong winds at a wind speed of 30 to 40 meters.

[0012]

[Brief description of the drawings]

FIG. 1 is a right side view of a wind power generator with a rudder according to the present invention.

FIG. 2 is a front view of a wind turbine with a rudder according to the present invention.

FIG. 3 is a plan view of a wind turbine with a rudder according to the present invention. FIG.

FIG. 4 is a right side view of the wind turbine without rudder according to the present invention.

FIG. 5 is a front view of a wind turbine without a rudder according to the present invention.

FIG. 6 is a plan view of a wind turbine without rudder according to the present invention.

FIG. 7 is a perspective view of a wind turbine with a rudder according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wind tunnel 2 Rotating blade 3 Rectifier plate 4 Support column 5 Rotating column 6 Rudder 7 Foundation 8 Rotary motor 9 Rotating bearing 10 Wind direction sensor 11 Generator built-in part

Claims (1)

[Claims] 1. A wind tunnel, wherein a wind tunnel is provided around the front of a rotating blade, a straightening plate is arranged inside the wind tunnel, and the entire surface of the foundation always faces in the direction of the wind, and is capable of rotating on the foundation. With wind generator.