JPH0722075U - Wind power generator using building wind - Google Patents

Abstract

(57) [Summary] [Purpose] Perform wind power generation using the building wind received by the building wall. [Structure] A rectangular air inlet is installed on the top of an installation side wall surface 2 of a building 1. A duct-type air flow distribution device 4 having a rectangular air intake opening 7 is provided downward along the side wall surface 2, and a rear stage of the air flow distribution device 4 is provided. The wind turbine 5 such as a sirocco type fan or a cross flow type fan is arranged so as to face the airflow outlet 12 that opens in the.
The wind turbine 5 is connected to the rotating shaft of the generator 6, and the normal wind speed that collides with the wall surface of the building 1 is rectified and accelerated to rotate the wind turbine 5 at a high speed to generate electricity.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a wind power generator using building wind for generating power by the energy of wind blowing on a wall surface of a building.

[0002]

[Prior art]

 In recent years, clean energy has become a problem, and wind power generation has also attracted attention. Conventionally, wind power generators that rotate and drive generators with rotating wind turbines that have been operating conventionally are built on hills or flatlands where wind speeds above a certain level can be expected throughout the year, and require a vast regional national land. Therefore, it is difficult to secure the scale in Japan, and the amount of operating electricity is extremely small.

[0003]

[Problems to be solved by the device]

 The present invention has been made in view of the above situation, and it is an object of the present invention to provide a wind turbine generator utilizing the building wind received by the wall surface of a building, focusing on the volume of air received by the wall surface of a large building. It is a thing.

[0004]

[Means for Solving the Problems]

 A power generator using a building wind according to the present invention is a duct-type airflow distribution device which is formed on the top of a side wall surface of a building and has a rectangular air intake opening downward along the side wall surface of the structure. The gist of the present invention is that it is composed of a wind turbine such as a sirocco type fan or a cross flow type fan axially arranged so as to face the airflow jet opening that is opened in the latter stage, and a generator in which the wind turbine is axially attached to the rotary shaft The airflow distribution device is composed of a rectangular duct having an inverted L-shaped lateral cross-section with a downward facing rectangular air suction port extending in the width direction of the building. The first airflow distribution section in which the distribution fins are arranged in parallel in the flow direction, and a plurality of distribution fins that are continuously arranged in the first airflow distribution section in the flow direction and have different lengths in sequence make the duct flow path Second airflow distribution with even division Consists of a, which is an air flow flowing in a structure in which rectifying acceleration.

[0005]

[Action]

 In the above configuration, the upward wind of the normal wind speed (eg, wind speed 1 m / sec) blown on the wall surface of the building has a high wind speed of 6 m / sec near the wall surface (within 50 cm). The high-speed airflow enters the rectangular air intake of the airflow distribution device, and the distribution fins of the first airflow distribution unit regulate the flow path and flow direction of the duct. By this regulation, the turbulent flow element in the air flow is almost eliminated, and the flow direction is further regulated by the distribution fins of the second air flow distribution section.

The high-speed airflow ejected from the airflow outlets through both airflow distributors is a rectified parallel high-speed airflow, which can be used to rotate a windmill to drive a generator. It becomes an air flow, and electric power can be obtained by the generator.

[0007]

【Example】

 An embodiment of a wind power generator using building wind according to the present invention will be described below with reference to the drawings. FIG. 1 is a partially cutaway perspective view showing the entire structure, FIG. 2 is a vertical cross-sectional view as seen from a partially cut-away side surface direction, and FIG. 3 is a partially cut-away vertical cross-sectional view from the front direction. Reference numeral 1 is a large building such as an office building, and 2 is a side wall surface of the building 1 where the wind turbine generator 3 is installed.

The wind turbine generator 3 is an airflow distribution device 4 configured on the top of the side wall surface 2 of the building 1 and a wind turbine such as a sirocco type fan or a crossflow type fan axially arranged at the rear stage of the airflow distribution device 4. 5, and a generator 6 in which the wind turbine 5 is attached to a rotating shaft.

The airflow distribution device 4 is composed of a rectangular duct having an inverted L-shaped lateral cross-section with a downward-facing rectangular air suction port 7 extending in the width direction of the building. Is installed so as to be in close contact with the installation side wall surface 2. A large number of distribution fins 9, 9 ... Are arranged in the first air flow distribution section 8 following the rectangular air intake port 7 so as to evenly divide the duct in the lateral direction. It continues to the configured second airflow distribution unit 10.

The second airflow distribution unit 10 has a structure that extends in the width direction of the airflow distribution device 4 and equally divides the flow path of the duct by a plurality of distribution fins 11, 11, ... The front end of each of the distribution fins 11, 11, ... Is located at the diagonal line L1 of the second air flow distribution unit 10 and forms a uniform opening surface in the duct direction of the first air flow distribution unit 8. At the same time, each rear end portion is arranged so as to face a rectangular airflow outlet 12 that is orthogonally opened toward the wind turbine 5 that is rotatably mounted on the shaft.

The rotating shaft of the wind turbine 5 is rotationally connected to the generator 6 installed in the building, and the rotation of the wind turbine 5 rotationally drives the generator 6 to output electric power.

The wind turbine generator configured as described above is intended to generate electric power by using a normal wind speed that is blown onto the wall surface of the building 1. Naturally, the wind having a wind speed of 1 m / sec, which collides with the installed side wall surface 2, is of course While moving, it changes its direction along the wall surface and moves. At this time, the lower end of the building is installed on the surface of the ground to prevent blow-through, so most of the air volume is upward, and a wind speed of 6 m / sec is obtained near the wall surface (within 50 cm). To be

The high-speed airflow A enters the rectangular air intake 7, and the distribution fins 9 1, 9 ... Of the first airflow distribution unit 8 regulate the flow path and flow direction of the duct. By this regulation, the turbulent elements in the air flow are substantially eliminated, and then the air flow direction is changed to the orthogonal direction (arrow B) by reaching the second air flow distribution unit 10, and the distribution fins 11, 11 ... It is uniformly distributed in the width direction with respect to the flow direction, and regulates the flow path and the flow direction.

The speeded-up airflow ejected from the airflow outlet 12 via the second airflow distributor 10 becomes a rectified parallel high-speed airflow and becomes a usable airflow C blown toward the windmill 5, With the rotation of the wind turbine 5, the rotation shaft of the generator 6 is rotationally driven to generate electric power.

[0015]

[Effect of device]

 As described above, in the wind power generator using the building wind according to the present invention, the normal wind speed to be blown to the vertical surface of the building can be converted into the high-speed parallel airflow ejected toward the windmill by the airflow distribution device. Therefore, it is possible to rotate the wind turbine with high efficiency and drive the generator by this, and not only the problem as clean energy can be solved, but also the configuration is simple and the airflow distribution device is The effect after the present invention is extremely large, such as being completely maintenance-free.

[Submission date] November 24, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0005

[Correction method] Change

[Correction content]

In the above structure, the upward wind of the normal wind speed (for example, wind speed of 3 m 2 / sec) blown on the wall surface of the building has a high wind speed of 6 m / sec near the wall surface (within 50 cm). The high-speed airflow enters the rectangular air intake of the airflow distribution device, and the flow path and the flow direction of the duct are regulated by the distribution fins of the first airflow distribution unit. By this regulation, the turbulent flow element in the air flow is almost eliminated, and the flow direction is further regulated by the distribution fin of the second air flow distribution section.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction content]

The wind turbine generator configured as described above is intended to generate electric power by using a normal wind speed that is blown onto the wall surface of the building 1. Naturally, a wind having a wind speed of 3 m 2 / sec that collides with the installation side wall surface 2 is naturally generated. While moving, it changes its direction along the wall surface and moves. At this time, the lower end of the building is installed on the surface of the ground to prevent blow-through, so most of the air volume is upward, and a wind speed of 6 m / sec is obtained near the wall surface (within 50 cm). To be

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing the entire structure of a wind turbine generator according to the present invention.

FIG. 2 is a vertical cross-sectional view as seen from a side direction in which the same portion is cut away.

FIG. 3 is a vertical cross-sectional view of the same part cut away as seen from the front direction.

[Explanation of symbols]

 1 Building 3 Wind Power Generator 4 Air Flow Distribution Device 5 Wind Turbine 6 Generator 8 First Air Flow Distribution Section 9 Distribution Fin 10 Second Air Flow Distribution Section 11 Distribution Fin 12 Air Flow Jet

Claims (2)

[Scope of utility model registration request] 1. A structure installed on the top of a side wall of a building,
A duct-type airflow distribution device having a rectangular air inlet opening downward along the side wall surface of the installation and a sirocco-type fan or a crossflow-type fan axially arranged so as to face the airflow ejection port opened in the subsequent stage of the airflow distribution device. A wind power generator using a building wind, which comprises a wind turbine and a generator in which the wind turbine is attached to a rotating shaft. 2. The airflow distribution device is constituted by a rectangular duct having an inverted L-shaped lateral cross-section having a downwardly facing rectangular air suction port extending in the width direction of the building, and a large number of the ducts following the rectangular air suction port. A first airflow distribution section in which the distribution fins are arranged in parallel in the flow direction, and a plurality of distribution fins that are continuously arranged in the first airflow distribution section in the flow direction and sequentially differ in length to form a duct flow path. The wind power generator using the building wind according to claim 1, wherein the wind power generator comprises a second airflow distribution unit that is evenly divided, and rectifies and accelerates a flowing airflow.