JP2005083287A - Wind power generation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wind power generation device capable of saving a space with high efficiency. <P>SOLUTION: The device comprises a generator 13 for generating electric power by wind, a plurality of wind introducing pipes 11A-11C where intake ports 15A-15C are formed at one-end parts for introducing wind, and a guide pipe 12 to which the other-end parts of the wind introducing pipes 11A-11C are connected for guiding the wind from the pipes 11A-11C to the generator 13. At the connection position where the other-end parts of a plurality of the wind introducing pipes 11A-11C are connected to the guide pipe 12, one wind introducing pipe and the other wind introducing pipe (the wind introducing pipe 11A and the wind introducing pipe 11B) are connected to the guide pipe 12 so as to make almost a right angle to each other. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a wind power generator, and more particularly to a wind power generator capable of performing highly efficient wind power generation.

  In recent years, solar power generation devices and wind power generation devices have attracted attention as methods for producing clean electrical energy to protect the earth from environmental destruction even a little (see, for example, Patent Document 1). However, at present, the production cost of the photovoltaic power generation device is still high, and the current situation is that wind power generation is still too late due to the large power generation device.

Here, such a conventional wind power generator 100 is shown in FIG. The wind power generator 100 shown in the figure has a configuration in which a generator 102 is provided on an upper portion of a support column 101 installed on a base. The generator 102 is provided with a plurality of propeller blades 103 on a rotating shaft, and the propeller blades 103 are configured to rotate by natural wind power. And it is set as the structure which rotates the rotating shaft of the generator 102 with the rotational force of the propeller blade | wing 103, and generates electric power by this. In addition, a directional blade 104 is provided at the position where the propeller blade 103 of the generator 102 is disposed and on the half body side.
JP 2003-49760 A

  By the way, since the wind power generator 100 as described above has a small power generation output, its use is inevitably limited. Moreover, in order to disseminate wind power generators in factories and ordinary houses, it is necessary to install them in places where people and animals can freely approach, such as the sites of factories and ordinary houses.

  However, in the conventional wind power generator 100, since the propeller blades 103 have been enlarged as a method for increasing the power generation efficiency, a relatively large space (installation area) is required to install the wind power generator. There was a problem. In addition, even if such a relatively large installation area is provided, there is a problem in that the wind power cannot be fully contributed to power generation, and the power generation efficiency cannot be sufficiently increased.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a wind power generator capable of performing space-saving and high-efficiency wind power generation.

  In order to solve the above-described problems, the present invention is characterized by the following measures.

A wind turbine generator according to the invention of claim 1
A generator for generating electricity by wind;
A plurality of air ducts formed with intake ports for taking in wind at one end;
The other end of the wind guide pipe is connected, and has a guide pipe for guiding the wind from a plurality of wind guide pipes to the generator,
And, at the connection position where the other end portions of the plurality of wind guide pipes are connected to the guide pipe, one wind guide pipe and the other wind guide pipe are connected to the guide pipe so as to form a substantially right angle. It is characterized by.

  According to the above invention, at the connection position where the plurality of wind guide pipes are connected to the guide pipe, each wind guide pipe is connected so as to form a substantially right angle, so the wind from each wind guide pipe merges most efficiently. . For this reason, the flow velocity of the wind in the guide pipe can be increased, and thus it is possible to perform highly efficient wind power generation.

The invention according to claim 2
The wind turbine generator according to claim 1,
The angle formed by the one air guide pipe and the other air guide pipe is 80 ° or more and 90 ° or less.

  Like the said invention, it is desirable that the angle which each wind guide piping in a connection position makes is 80 degrees or more and 90 degrees or less, and highly efficient wind power generation can be performed in this range.

The invention according to claim 3
The wind turbine generator according to claim 1 or 2,
A rectifying plate is provided in the guide pipe.

  According to the above invention, by providing the rectifying plate in the guide pipe, the wind flowing into the generator can be stabilized, the power generation efficiency can be improved, and the generation of noise can be prevented.

The invention according to claim 4
The wind turbine generator according to any one of claims 1 to 3,
A cross-sectional area of the air guide pipe is larger than a cross-sectional area of the guide pipe.

  According to the above invention, since the cross-sectional area of the air guide pipe is made larger than the cross-sectional area of the guide pipe, the wind taken in by the air guide pipe having a large cross-sectional area has a smaller cross-sectional area than the guide pipe. Since the wind speed increases rapidly when introduced into the pipe, high power can be generated in the generator.

The invention according to claim 5
The wind turbine generator according to any one of claims 1 to 4,
The shape of the intake port is a honeycomb shape.

  According to the above invention, since the shape of the intake port is a honeycomb shape, a plurality of intake ports can be arranged with high density, so that wind can be taken in without waste. Further, since the honeycomb shape is highly rigid, it is possible to prevent noise from being generated when the wind is introduced.

  According to the present invention, winds from a plurality of wind guide pipes can be merged most efficiently and introduced into the guide pipe. Therefore, loss at the time of merging can be reduced and the flow velocity of wind in the guide pipe can be increased. Highly efficient wind power generation can be performed.

  Next, the best mode for carrying out the present invention will be described with reference to the drawings. 1 and 2 show a wind power generator 10 that is a first embodiment of the present invention. FIG. 1 is a front view of the wind turbine generator 10, and FIG. 2 is a side cross-sectional view showing the main configuration of the wind turbine generator 10.

  Generally speaking, the wind power generator 10 includes a plurality of (three in this embodiment) wind guide pipes 11A to 11C, a guide pipe 12, a generator 13, and the like. The air guide pipes 11 </ b> A to 11 </ b> C have intake ports 15 </ b> A to 15 </ b> C for taking in wind at one end (left end in FIG. 2), and the other end is connected to the guide pipe 12.

  That is, all of the three air guide pipes 11 </ b> A to 11 </ b> C are connected to one guide pipe 12. Thereby, all the winds taken in from the inlets 15A-15C are configured to be supplied to the guide pipe 12 via the air guide pipes 11A-11C. In the present embodiment, the shape of the intake ports 15A to 15C is hexagonal as shown in FIG.

  As shown in an enlarged view in FIG. 2, each of the air guide pipes 11A to 11C has a trumpet shape (note that only the air guide pipes 11A and 11B are shown in FIG. The pipe 11C has the same shape as the air guide pipes 11A and 11B). That is, the area S1 of the intake ports 15A to 15C, which is one end of each of the air guide pipes 11A to 11C, is set larger than the area S2 of the other end connected to the guide pipe 12 of each of the air guide pipes 11A to 11C. (S1> S2).

  The guide pipe 12 is a single straight pipe. The cross-sectional area S3 of the guide pipe 12 is set smaller than the area S2 on the other end side connected to the guide pipe 12 of each of the air guide pipes 11A to 11C (S2> S3). Thereby, when the wind taken in by the air guide pipes 11A to 11C is introduced into the guide pipe 12 having a smaller cross-sectional area than the air guide pipes 11A to 11C, the wind speed is rapidly increased. For this reason, it is possible to supply wind with high wind speed to the generator 13, and thus it is possible to generate high power at the generator 13.

  On the other hand, a plurality of rectifying plates 16 are disposed in a substantially middle portion in the guide pipe 12. Thus, by providing the rectifying plate 16 in the guide pipe 12, the wind flowing into the generator 13 can be stabilized and the power generation efficiency can be increased. As described above, in the wind turbine generator 10 according to the present embodiment, high-speed wind flows in the guide pipe 12, but the flow of wind in the guide pipe 12 is stabilized, so The generated noise can be reduced.

  Here, attention is paid to the connection angles of the air guide pipes 11A to 11C at the positions where the air guide pipes 11A to 11C and the guide pipe 12 are connected (hereinafter, this position is referred to as a connection position). In FIG. 2, the connection angle at the connection position of the air guide pipe 11A and the air guide pipe 11B is indicated by an arrow θ.

  The present embodiment is characterized in that at this connection position, one air guide pipe 11A and the other air guide pipe 11B are connected to the guide pipe 12 so as to form a substantially right angle. Although not shown, the air guide pipe 11B and the air guide pipe 11C are also connected to the guide pipe 12 so as to make a substantially right angle, and the air guide pipe 11A and the air guide pipe 11C are also connected to the guide pipe 12 so as to make a substantially right angle. It is. In this case, the substantially right angle means a range of 80 ° or more and θ = 90 ° or less (80 ° ≦ θ ≦ 90 °).

  As in this embodiment, the connection angle θ of the air guide pipes 11A to 11C with respect to the pair of adjacent guide pipes 12 at the connection position is set to a substantially right angle (80 ° ≦ θ ≦ 90 °). The wind from the pipes 11A to 11C can be merged most efficiently. That is, when wind is introduced from each of the air guide pipes 11A to 11C to the guide pipe 12, loss due to merging at the time of introduction can be minimized. For this reason, the flow velocity of the wind in the guide pipe 12 can be increased, and thus the generator 13 can perform wind power generation with high efficiency.

  Next, a second embodiment of the present invention will be described. 3 and 4 show a wind power generator 20 according to the second embodiment. FIG. 3 is a front view of the wind power generator 20, and FIG. 4 is a side cross-sectional view showing a main configuration of the wind power generator 20. 3 and 4, the same components as those shown in FIGS. 1 and 2 are denoted by the same reference numerals, and the description thereof is omitted.

  In the wind turbine generator 10 according to the first embodiment described above, the intake ports 15A to 15C are spaced apart from each other as shown in FIG. 1, and thus the intake ports 15A to 15C with respect to the entire front area of the wind power generator 10 are arranged. The area was small and the wind intake efficiency was not sufficient. On the other hand, the wind turbine generator 20 according to the present embodiment is characterized in that the shape of the entire intake port is a honeycomb shape as shown in FIG. 3 by aligning the intake ports 25A without gaps. is there.

  Also in this embodiment, one guide pipe 12 and one generator 13 are arranged for the three air guide pipes 21A to 21C. Each of the air guide pipes 21 </ b> A to 21 </ b> C has intake ports 25 </ b> A to 25 </ b> C that take in wind at one end (left end in FIG. 4), and the other end is connected to the guide pipe 12. Therefore, all the winds taken in from the taking-in ports 25A-25C are configured to be supplied to the guide pipe 12 via the air guide pipes 21A-21C.

  As shown in an enlarged view in FIG. 4, each of the air guide pipes 21 </ b> A to 21 </ b> C has a trumpet shape, and thus the areas of the intake ports 25 </ b> A to 25 </ b> C that are one end portions of the air guide pipes 21 </ b> A to 21 </ b> C. S4 is set larger than the area S5 of the other end connected to the guide pipe 12 (S4> S5). FIG. 2 shows only the air guide pipes 21A and 21B, but the air guide pipe 21C has the same shape). The cross-sectional area S6 of the guide pipe 12 is set to be smaller than the area S5 on the other end side connected to the guide pipe 12 of each of the air guide pipes 21A to 21C (S5> S6).

  Thereby, when the wind taken in by the air guide pipes 21A to 21C is introduced into the guide pipe 12 having a smaller cross-sectional area than the air guide pipes 21A to 21C, the wind speed is rapidly increased. For this reason, it is possible to supply wind with high wind speed to the generator 13, and thus it is possible to generate high power at the generator 13.

  Further, the wind power generator 20 according to the present embodiment is configured such that the intake port 25A has a honeycomb shape as described above, and the adjacent intake ports 25A to 25C are arranged without gaps. For this reason, it is possible to perform wind power generation with high wind intake efficiency and thus high efficiency. In addition, since the shape of the intake ports 25A to 25C is a honeycomb shape, the honeycomb shape is highly rigid. Therefore, noise can be prevented from being generated when the wind is introduced even when the wind is taken in with high efficiency as described above.

  Furthermore, also in this embodiment, the connection angle θ of the air guide pipes 21A to 21C with respect to the pair of adjacent guide pipes 12 at the connection position is set to a substantially right angle (80 ° ≦ θ ≦ 90 °). With this configuration, when wind is introduced from the air guide pipes 21A to 21C to the guide pipe 12 as in the first embodiment, loss due to merging at the time of introduction can be minimized, and the guide pipe Since the wind flow velocity at 12 can be increased, highly efficient wind power generation can be performed by the generator 13.

  5 and 6 show wind power generators 30 and 40 according to third and fourth embodiments of the present invention. In the first and second embodiments described above, each of the intake ports 15A to 15C and 25A to 25C has a hexagonal shape, but the shape of the intake port is not limited to this.

  Specifically, like the wind power generator 30 according to the third embodiment shown in FIG. 5, the shapes of the intake ports 35 </ b> A to 35 </ b> C formed at the ends of the air guide pipes 31 </ b> A to 31 </ b> C may be rectangular.

  Moreover, it is good also considering the shape of intake port 45A-45C formed in the edge part of wind guide piping 41A-41C as a circular shape like the wind power generator 40 which concerns on 4th Example shown in FIG. Thus, the shape of the intake port is not particularly limited, and various shapes can be selected.

  In each of the above-described embodiments, the three air guide pipes 11A to 11C, 21A to 21C, 31A to 31C, and 41A to 41C are set as one set, and one guide pipe 12 and one power generation unit are provided for this set. Although the wind power generators 10, 20, 30, and 40 in which the machine 13 is disposed are shown, the number of wind guide pipes for one generator 13 is not limited to three, either one or two, Moreover, it is good also as a structure which arrange | positions four or more.

FIG. 1 is a front view of a wind turbine generator according to a first embodiment of the present invention. FIG. 2 is a cross-sectional side view of an essential part for explaining the configuration of the wind turbine generator according to the first embodiment of the present invention. FIG. 3 is a front view of a wind turbine generator that is a second embodiment of the present invention. FIG. 4 is a cross-sectional side view of an essential part for explaining the configuration of the wind turbine generator according to the second embodiment of the present invention. FIG. 5 is a front view of a wind turbine generator that is a third embodiment of the present invention. FIG. 6 is a front view of a wind turbine generator that is a fourth embodiment of the present invention. FIG. 7 is a perspective view showing a conventional wind power generator.

Explanation of symbols

10, 20, 30, 40 Wind power generators 11A to 11C, 21, 21A, 21B, 31A to 31C, 41A to 41C Wind guide pipe 12 Guide pipe 13 Generator 14 Propeller 15A to 15C, 25, 25A, 25B, 35A to 35C, 45A-45C Inlet 16 rectifier

Claims (5)

A generator for generating electricity by wind;
A plurality of air ducts formed with intake ports for taking in wind at one end;
The other end of the wind guide pipe is connected, and has a guide pipe for guiding the wind from a plurality of wind guide pipes to the generator,
And, at the connection position where the other end portions of the plurality of wind guide pipes are connected to the guide pipe, one wind guide pipe and the other wind guide pipe are connected to the guide pipe so as to form a substantially right angle. The wind power generator characterized by becoming. In the wind power generator according to claim 1,
An angle formed by the one air guide pipe and the other air guide pipe is 80 ° or more and 90 ° or less. The wind turbine generator according to claim 1 or 2,
A wind turbine generator comprising a rectifying plate provided in the guide pipe. The wind turbine generator according to any one of claims 1 to 3,
The wind power generator characterized in that a cross-sectional area of the guide pipe is smaller than a cross-sectional area of the air guide pipe. The wind turbine generator according to any one of claims 1 to 4,
A wind power generator characterized in that the intake port has a honeycomb shape.

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