JP2021014831A - Wind power generator - Google Patents

Abstract

To achieve further efficient wind power generation by effectively using a strong wind which blows through a roof floor or the like.SOLUTION: In a wind power generator 1, a tower 4 for supporting a windmill 5 is installed on an upper part of a base table 3 fixed to a roof floor 2 of a building B. The tower 4 comprises a base part 4a vertically erecting on the base table 3, and a support part 4c inclined to the base part 4a at an inclination angle θ. A bent part 4b is formed between the base part 4a and the support part 4c. Therefore, the windmill 5 is arranged obliquely downward at the inclination angle θ with respect to the vertical direction. A generator for generating power on the basis of the rotation of the windmill 5 is incorporated in the tower 4. A building wind WB colliding with a sidewall 7 at an upper part of the building B flows upward, straddles a corner part 8, and circulates on the roof floor 2 while drawing an upward parabola. The windmill 5 which is arranged while being inclined in the vicinity of the corner part 8 vertically receives the building wind WB which straddles the corner part 8.SELECTED DRAWING: Figure 2

Description

The present invention relates to a wind power generator that is installed on the ocean, on the ground, on the roof of a building, or the like and efficiently generates wind power.

In recent years, renewable energy power generation equipment has been reviewed. For example, the natural wind is a gradient flow that is weak near the ground and becomes stronger as it goes up. In urban areas and residential areas where the heights of buildings are almost the same, the wind is blocked by low-rise buildings and the wind is weak. On the other hand, the wind in the sky is strong and passes over the building.
As shown in FIG. 6, in the area of a building B such as a high-rise building, a strong wind in the sky collides with one wall surface of the building B, gets over the rooftop, and descends to the other wall surface to generate a strong wind W1. .. In addition, strong wind W2, in which winds that have nowhere to go around building B blow through the valley of building B locally concentrated, and strong wind W3, which swirls in the vertical direction along the wall surface of building B, are generated. There is. These winds blow through as stronger or turbulent winds than in areas such as urban areas and residential areas, and these are called building winds. Among the building winds, a wind power generation device is installed that uses the strongest wind W1 that rises from the wall surface of the building B and passes through the roof for wind power generation.

For example, in the wind power generator described in Patent Document 1, it has been proposed that a plurality of small wind turbines and generators are arranged in a straight line facing the wind direction at intervals on the roof of a building. In this wind power generator, a plurality of wind turbines in which a generator is directly connected to a support column provided on a rooftop are upright, and the plurality of wind turbines have different numbers of blades. In this wind power generation device, even a small wind turbine can effectively utilize the wind power to increase the amount of power generation, and the noise can be reduced by distributing the wind noise to various frequencies.

Japanese Unexamined Patent Publication No. 2003-227455

By the way, the building wind that blows through the rooftop comes into contact with the side surface of the building B, then passes over the corners of the building B and flows on the rooftop, and flows in an upward parabola on the rooftop. On the other hand, in the wind power generator described in Patent Document 1, since a plurality of wind turbines are arranged vertically and in a row on the flat surface of the roof, the building wind that draws an upward parabola hits the wind turbines diagonally. There is a problem that it cannot be sufficiently effectively used for wind power generation.

The present invention has been made in view of such a problem, and an object of the present invention is to provide a wind power generation device capable of achieving more efficient wind power generation by effectively utilizing a strong wind blowing through a rooftop or the like.

The wind power generator according to the present invention is characterized by including a wind turbine arranged diagonally downward with respect to the vertical direction, a tower that supports the wind turbine, and a generator that generates electricity based on the rotation of the wind turbine. ..
According to the present invention, when a wind such as a building wind is blown diagonally upward or upward in a parabolic shape, the wind turbine can receive the wind substantially vertically and rotate it efficiently to generate electricity.

Further, the tower preferably includes a base portion extending in the vertical direction and a support portion provided with a wind turbine which is bent or curved in an oblique direction from the base portion.
Depending on the direction of the wind blowing on the wind turbine, the inclination of the support portion with respect to the base of the tower can be set by bending or bending.

Further, it is preferable that a weight provided in the vicinity of the tower and an inclination angle adjusting member provided between the weight and the support portion of the tower and capable of adjusting the inclination angle of the support portion are further provided. ..
Since the direction of the wind for power generation changes depending on the season, it is possible to generate electricity by receiving the wind from the front with a windmill by adjusting the inclination of the tower with the inclination angle adjusting member according to the season or the characteristics of the wind. it can.

In addition, the tower may be installed on the roof of the building.
By installing a wind power generator near the corner of the building on the roof of the building, it is possible to draw an upward parabola and receive the building wind that blows through at a right angle with a windmill and rotate it to generate electricity efficiently.

A base for supporting the tower may be provided, and the base may have an inclined surface on the upper surface.
In this case, even if the tower is not bent, the upward wind can be received by the wind turbine and rotated.

In the wind power generation device according to the present invention, since the wind turbines are arranged diagonally downward, the wind turbines can be rotated by receiving a strong wind blowing upward from the lower side in the front, so that the wind power generation can be efficiently performed.

It is a schematic perspective view of the wind power generation apparatus according to the 1st Embodiment of this invention. It is a side view of the wind power generation apparatus shown in FIG. It is a side view of the wind power generation apparatus by 2nd Embodiment. It is an enlarged view of the main part of the modified example in which the stopper of the support part is provided at the base part of a tower. It is a side view which shows the modification of the wind power generation apparatus. It is explanatory drawing which shows the kind of a building style with respect to a building.

Hereinafter, the wind power generation device according to the embodiment of the present invention will be described with reference to the accompanying drawings.
1 and 2 show a wind power generator 1 according to the first embodiment of the present invention. The wind power generator 1 shown in FIG. 1 is installed on the roof 2 of the building B. As shown in FIG. 2, the wind power generator 1 is installed on the base 3 installed on the roof 2 of the building B, the tower 4 installed on the surface of the base 3, and the top of the tip of the tower 4. It is equipped with a wind turbine 5.
The wind power generator 1 is installed at a position close to the corner 8 of one side wall 7 of the building B and the roof 2, and in the example shown in the figure, three wind power generators 1 are installed in parallel along the corner 8. Has been done.

The base 3 is formed of, for example, a steel plate in a flat plate shape. The tower 4 installed on the surface of the base 3 is made of steel, for example, and is formed in a tapered truncated cone shape or the like, and the tip side is bent toward the corner 8 side at the middle portion in the longitudinal direction. The tower 4 is bent in a dogleg shape, and the support portion 4c is inclined toward the corner 8 side of the building B at the bent portion 4b in the middle in the longitudinal direction with respect to the base portion 4a fixed to the base 3.
The inclination angle θ of the support portion 4c with respect to the extension line of the base portion 4a standing in the vertical direction can be arbitrarily set, but for example, it is set between about 30 ° and about 45 °. The inclination angle θ of the bent portion 4b of the tower 4 can be appropriately set depending on the installation distance of the tower 4 with respect to the corner 8 of the building B, the height of the tower 4, the height of the bent portion 4b, and the like. The tower 4 may be formed by being curved in a substantially arc shape instead of being bent.

A plurality of wind turbines 5 installed at the tip of the tower 4, for example, three blades 10 are arranged at predetermined angular intervals. The wind turbine 5 is located close to the corner 8 of the building B because the tower 4 is bent, and is preferably located on the upper surface of the roof 2. The wind turbine 5 is installed at a substantially right angle to the support portion 4c of the tower 4.
Therefore, when the building wind WB that blows on the building B collides with the side wall 7 and flows upward and passes through the rooftop 2, it faces the wind turbine 5 at a substantially right angle near the corner 8 and rotates the blades 10 efficiently. Let me. The generator of the wind turbine 5 (not shown) is installed in the tower 4, but may be separately installed on the roof 2 or the like.

The wind power generation device 1 according to the first embodiment has the above-described configuration, and the operation will be described next. The strong wind flowing over the sky becomes a building-like WB and blows on the side wall 7 of the building B, and then climbs over the roof 2 from the corner 8 in an upward parabolic shape. Since the direction of the building wind WB is almost constant throughout the year, the inclination angle θ of the tower 4 and the wind turbine 5 can be appropriately set by observing the direction of the wind for a certain period of time in advance. The inclination angle of the tower 4 and the inclination angle of the wind turbine 5 may be the same or different.
Further, the building wind WB is blown at a right angle to the inclined wind turbines 5 of the wind power generator 1 in the vicinity of overcoming the corner 8 of the roof 2 to efficiently rotate each of the blades 10. The rotation of the wind turbine 5 causes the generator to generate electricity, which is consumed for lighting in the building B and other power consumption. Alternatively, it is supplied to other facilities or electric power companies.

As described above, according to the wind power generator 1 according to the first embodiment, the building wind WB blown on the building B blows the strongest wind at right angles to the wind turbine 5 when riding on the roof 2 from one corner 8. The wind turbine 5 can be rotated efficiently.
Moreover, since the tower 4 of the wind power generator 1 is bent toward the corner 8 side at a position closer to the corner 8 side of the roof 2 of the building B, the building wind forming an upward parabola is perpendicular to the wind turbine 5. It can be sprayed and the wind turbine 5 is rotated efficiently.

Although the wind power generator 1 according to the first embodiment of the present invention has been described in detail above, the present invention is not limited to the above-described embodiment, and appropriate modifications and substitutions are made without departing from the spirit of the present invention. Etc., all of which are included in the present invention. Hereinafter, other embodiments and modifications of the present invention will be described, but the description will be omitted by using the same reference numerals for the same or similar parts and members as those in the above-described embodiment.

Next, the wind power generation device 1A according to the second embodiment of the present invention will be described with reference to FIGS. 3 and 4.
Since the direction and air volume of the building-style WB fluctuate depending on the season, if the positions of the tower 4 and the wind turbine 5 are fixed when the season changes, the building-style WB cannot be sufficiently received and effectively used. In the present embodiment, it is possible to deal with such fluctuations in the building-like WB.
In the wind power generator 1A shown in FIG. 3, the tower 4 is provided with a bent portion 4b between a base portion 4a fixed to the base 3 and a support portion 4c provided with a wind turbine 5, and the bent portion 4b has a base portion. A shaft portion 12 that can adjust the angle of the support portion 4c with respect to 4a by a minute angle is installed. Further, a weight 13 is arranged on the base 3 in the vicinity of the back surface side of the base 4a of the tower 4.

A hydraulic jack 14 is connected between the weight 13 and the support portion 4c of the tower 4. In the hydraulic jack 14, for example, the hydraulic cylinder 14a is fixed to the weight 13, and the tip of the rod 14b provided so as to be able to move forward and backward from the inside of the hydraulic cylinder 14a is connected to the support portion 4c of the tower 4. Alternatively, conversely, the hydraulic cylinder 14a may be fixed to the support portion 4c of the tower 4, and the rod 14b may be connected to the weight 13. When the hydraulic jack 14 expands and contracts, the hydraulic cylinder 14a and the rod 14b are allowed to rotate according to the expansion and contraction of the hydraulic jack 14.

The change in the direction of the building-like WB flowing from the corner 8 of the building B toward the rooftop is measured in advance according to the change of the season. Then, when the season changes, the hydraulic jack 14 is operated to advance and retreat the rod 14b to increase or decrease the inclination angle θ of the support portion 4c of the tower 4. As a result, the inclination angle θ of the wind turbine 5 provided on the support portion 4c of the tower 4 can be finely adjusted, and the building wind WB is adjusted so as to hit the wind turbine 5 at right angles regardless of the change of seasons. A device (not shown) for controlling the flood pressure of the hydraulic jack 14 may be separately installed on the roof 2.

The support portion 4c of the tower 4 may be provided with a stopper so that the wind turbine 5 does not tilt too much due to the weight or the hydraulic jack 14 or the like. For example, in FIG. 4, the base portion 4a of the tower 4 is provided with a first stopper 16a that regulates the rotation of one side of the support portion 4c centered on the shaft portion 12 and a second stopper 16b that regulates the rotation of the other side. I have. As a result, the wind turbine 5 can regulate the direction in which the inclination angle θ increases and the direction in which the inclination angle θ decreases. The rotation range of the inclination angle θ of the wind turbine 5 can be appropriately set according to the change in the wind direction of the building wind WB according to the change of seasons.
Further, an air jack, a mechanical jack, or the like may be used instead of the hydraulic jack 14. Further, the inclination angle θ of the support portion 4c of the tower 4 may be adjusted by using a motor or the like, and these are included in the inclination angle adjusting member.

According to the wind power generation device 1A according to the second embodiment, the inclination angle θ of the tower 4 supporting the wind turbine 5 can be adjusted by the hydraulic jack 14 according to a change in the wind direction due to a change in the seasons, and so on. , Building-style WB can be used efficiently and effectively.

FIG. 5 shows a wind power generation device 1B according to a modification of the wind power generation device 1 according to the first embodiment. In FIG. 5, a base 3 whose upper surface 3a is an inclined surface is fixed to the roof 2. A linear tower 4 that does not bend is installed on the upper surface 3a, and a wind turbine 5 is installed on the support portion of the tower 4.
In this modification, the inclination angle θ of the upper surface 3a of the base 3 can be appropriately set so that the inclination angle θ of the tower 4 and the wind turbine 5 with respect to the vertical line becomes a predetermined size.

Further, although three wind power generators 1, 1A and 1B are installed on the roof 2, the number of wind power generators 1, 1A and 1B may be further increased or decreased. The size of the wind turbine 5 may be small or large.
In each of the above-described embodiments, the wind power generation devices 1, 1A and 1B installed on the roof 2 of the building B that generates power by receiving the building wind WB have been described, but the wind power generation devices 1, 1A and 1B according to the present invention have been described. The installation position is not limited to the roof 2 of the building B. For example, it can be installed on hills, hills, mountains, offshore, etc., and wind power can be effectively generated by a wind turbine 5 arranged so as to incline downward with respect to an upward wind.

1, 1A, 1B Wind power generator 2 Roof 3 Base 4 Tower 4a Base 4b Bending part 4c Support part 5 Windmill 7 Side wall 8 Corner part 12 Shaft part 13 Weight 14 Hydraulic jack B Building WB Building style

Claims (4)

A wind turbine arranged diagonally downward with respect to the vertical direction,
The tower that supports the windmill and
A generator that generates electricity based on the rotation of the wind turbine,
A wind power generator characterized by being equipped with. The wind power generator according to claim 1, wherein the tower includes a base portion extending in the vertical direction and a support portion provided with the wind turbine which is bent or curved in an oblique direction from the base portion. 2. Claim 2 further comprising a weight provided in the vicinity of the tower and an inclination angle adjusting member provided between the weight and the support portion of the tower and capable of adjusting the inclination angle of the support portion. The wind power generator described in. The wind power generator according to any one of claims 1 to 3, wherein the tower is installed on the roof of a building.

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