JP2023181943A - Rotary bucket type small-sized hydraulic power generation device - Google Patents

Abstract

To provide a small-sized hydraulic power generation device capable of avoiding or minimizing legal regulations to simplify procedures and construction, thereby effectively activating hydraulic power of a river.SOLUTION: A plurality of water receiving buckets captures a water flow of a river, converts a water pressure of the water flow and tensile force caused by cavitation into rotational power via a power receiving chain, and transmits the rotational power to a generator via inside gears, outside gears, and transmission gears. By providing a floating body on an outside of a generation device body, an upper half is always above a water surface and a lower half is below the water surface. The water receiving bucket having a structure that rotates around a shaft, releases the force of the water flow near the water surface, and idles in the upper half of the device, minimizes resistance to the water flow, and uses this structure to efficiently generate power.SELECTED DRAWING: Figure 5

Description

The present invention is a small hydroelectric power generation device for converting running water energy such as an irrigation canal or a small-scale river into rotational power energy and converting it into electrical energy.

Conventional small-scale hydroelectric power generation devices mainly use the water wheel type, propeller type, and spiral flow type to capture energy from flowing water. Conventional simple water turbine-type and provera-type small hydroelectric power generation devices cannot fully utilize flowing water energy to convert electrical energy, resulting in low power generation efficiency. Furthermore, conventional small-scale hydroelectric power generation devices involve major challenges before installation, such as civil engineering work, the need to sort out laws and regulations, and gain the understanding of the local community.

JP2021-195947

The problem to be solved by the present invention is to provide a small hydropower generation device that can avoid or minimize legal regulations, simplify procedures and construction, and effectively utilize river water power.

In order to solve the above problems, the present invention provides a plurality of water receiving buckets (3) to efficiently receive river water flow in the water receiving buckets (3) to obtain a power source, thereby achieving higher efficiency. It is characterized by the ability to generate electricity. The water-receiving bucket (3) receives water pressure at its front part, while receiving tensile force due to cavitation (14) at its back surface. The received power is sequentially transmitted to an inner gear (6), an outer gear (7), and a transmission gear (9) via a power receiving chain (5) such as a bicycle chain to generate electricity.

In the power generation device of the present invention, the individual water receiving buckets (3) capture the water flow of the river, and the power generator (1) is efficiently generated by the pulling force caused by the water pressure (16) at the front part and the cavitation (14) at the back side. This makes it possible to transmit rotational energy to the transmission gear (9) connected to the transmission gear (9). In addition, by having a floating body (11) on the side of the power generator body and fixing the body to both banks of the river with anchors (10), it is possible to easily install it, and also to increase or decrease the water level and water flow of the river. It also corresponds to

FIG. 1 is an image diagram of how the power generation device according to the present invention is used. It is a perspective view of a power generation device. It is an enlarged view of the area around the water receiving bucket (3). It is a front view of a power generation device. It is a side view of a power generation device. It is a top view of a power generation device.

It is fixed with anchors (10) on both banks of the river as shown in Figure 1. The main body of the power generator includes a floating body (11) on the outside of a frame (2). Thereby, the upper half of the power generator main body is always located above the water surface (15) and the lower half is located below the water surface (15). Moreover, a water flow stabilizing floating plate (12) may be additionally provided inside.

By capturing the water flow of the river with a plurality of water receiving buckets (3) below the water surface (15), the propulsive force of the water flow is converted into rotational power via the power receiving chain (5), and the inner gear (6), Rotational power is transmitted in this order to the outer gear (7) and the transmission gear (9). Finally, the rotational power is connected to the generator (1) on the top of the main body to obtain electrical energy.

The present invention can be installed without being affected much by the width and depth of the river, and the water receiving bucket (3) catches the water flow under the water surface, and the water pressure (16) on the front part and the cavitation (14) on the back side. While obtaining power from the pulling force, the water receiving bucket (3) rotates around the shaft (4) when it comes close to the water surface (15), releasing the force of the captured water flow. The water receiving bucket (3) idles on the water surface (15) and rotates around the shaft (4) on the water surface (15) with almost no resistance. This makes it possible to efficiently convert the water flow into rotational power for the generator (1).

In Japan, agricultural canals and roads were developed following post-war land reform. If these irrigation canals and small and medium-sized rivers can be used effectively and used as part of the electricity supply for regional revitalization, they can be used as power sources for campgrounds, agricultural greenhouse cultivation, EV car charging, and household power sources. It can be used to supply electricity to other areas, and has great potential to help revitalize local regions.

1 Generator 2 Frame 3 Water receiving bucket 4 Shaft 5 Power receiving chain 6 Inner gear 7 Outer gear 8 Base shaft 9 Transmission gear 10 Anchor 11 Floating body 12 Water flow stabilizing floating plate 13 Wire 14 Cavitation 15 River surface 16 Water pressure

Claims (2)

Equipped with multiple water receiving buckets (3), the water receiving buckets (3) below the water surface (15) capture the water flow of the river and convert the propulsive force into rotational power via the power receiving chain (5). A small hydroelectric power generation device characterized in that rotational power is transmitted to a generator (1) via an inner gear (6), an outer gear (7), and a transmission gear (9). By having a floating body (11) on the outside of the main body, it can be used semi-floating on the river water surface (15) and fixed with anchors (10) on both banks, making installation easy without underwater construction. A small hydroelectric power generation device that is characterized by being less affected by the water level and width of the river.