JP2013096264A - Power generation apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power generation apparatus that is unlikely to be affected by a water level change, can be installed easily and can also be miniaturized, and achieves stable power generation, and to provide a power generation method.SOLUTION: The power generation apparatus includes a water turbine which includes a floating function sealed with a cylindrical body and has a number of blades around the body. The power generation apparatus further includes, inside of the water turbine with the blades: an arm to which the water turbine is attached and which has a fixed length and is supported so as to be freely oscillated around a supporting point; a transmission means which is connected from a revolving shaft of the water turbine via a chain or the like and which transmits power while increasing the rotation; a generator which is mounted at the side opposite to the water turbine, with respect to the supporting point of the arm; and a weights which are provided so as to be freely increased/decreased at a position closer to the generator.

Description

  The present invention relates to a power generation apparatus and a power generation method, and more particularly to a power generation apparatus and a power generation method for generating power by transmitting a flow of water in a water channel and rotating the power generation apparatus.

  There is a strong need to respond to the power shortage caused by the accident at the nuclear power plant that originated in the Great East Japan Earthquake in March this year. As one of the countermeasures, safe and environmentally friendly renewable energy is expected. Among renewable energies, it is possible to operate 24 hours a day, 365 days a year, relatively less affected by the weather, and there is a growing interest in small hydropower generation that can be easily introduced. It's getting on. As an example of a conventional small hydroelectric generator, there is one disclosed in Patent Document 1, for example.

  The small hydroelectric generator of Patent Document 1 includes floats each having a floating function in the front and rear directions of one open circumferential flow type water turbine so that it can follow even if the water level changes. In addition, the turbine that follows the change in the water level is transmitted to the generator with a speed increase ratio by a chain, and the generator operates.

JP 2007-205342 A

  Although small hydroelectric power generation devices are relatively unaffected by the weather, changes in water levels in waterways and rivers are unavoidable, and stable power generation efficiency is always required even under such fluctuating conditions. It is also important that the installation is easy. From this point of view, the technique disclosed in Patent Document 1 requires a float, which causes a problem that the apparatus becomes large. Further, the floater system of Patent Document 1 has a problem that it is difficult to adjust buoyancy, and it is difficult to set an optimum condition each time according to installation conditions. That is, since the technique of Patent Document 1 is widely spread, it is difficult to flexibly cope with various location conditions, and the apparatus becomes large.

  The present invention has been made in view of the above points, and is less susceptible to changes in the water level, can be easily installed, can be downsized, and can generate stable power. An object is to provide an apparatus and a power generation method.

  In order to solve the above-described problems, a power generation device according to the present invention has a floating function sealed with a cylindrical body, and a water turbine having a large number of wings around the body, An arm to which a water turbine is attached and which is supported by a fixed length so as to freely swing around a fulcrum, transmission means coupled with a chain or the like from the rotating shaft of the water turbine and transmitted at an increased speed, and a fulcrum of the arm On the other hand, it includes a generator attached to the opposite side of the water wheel and a weight provided in a position close to the generator so as to be increased or decreased.

  In this configuration, the winged water wheel has a floating function around the fulcrum, and a weight is placed on the opposite side of the water wheel, making it less susceptible to changes in the water level, easy installation, and miniaturization possible. And stable power generation is possible

  According to the power generation device and the power generation method of the present invention, it is possible to achieve stable power generation in response to changes in the water level of waterways, rivers, and the like.

It is a schematic diagram for demonstrating an example of the installation mode of the electric power generating apparatus in embodiment of this invention. It is the side view and front view for demonstrating the 1st Embodiment of this invention. It is the side view and front view for demonstrating the 2nd Embodiment of this invention.

(Embodiment 1)

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic diagram for explaining an example of an installation form of a power generation device according to an embodiment of the present invention.

  The power generation apparatus according to the present embodiment can be installed across a waterway such as an agricultural waterway or a river. For example, a winged water wheel rotates with a water flow flowing in the direction of arrow A in FIG. 1, and the rotation rotates the generator through the arm. As shown in the front view of FIG. 2, for example, a poly tank is set in the winged water wheel, and this poly tank gives moderate buoyancy to the wing water wheel.

  The winged waterwheel that rotates by the water flowing through the waterway has a hollow plastic tank inside. Due to the buoyancy of this poly tank, the winged water turbine follows the change in the water level of the changing waterway.

(Solution according to the invention)
In the floating turbine type open peripheral flow type small hydroelectric power generation method and the power generation device of the present invention, the body of a cylindrical water turbine having a large number of blades is provided with a floating function instead of providing a float as in the conventional example. By doing so, downsizing can be realized and effective.

  In addition, as shown in the diagram of Example 1, a water wheel having a single floating function is supported by an arm and can swing around a fulcrum shaft. By installing a generator that is accelerated and transmitted, and a weight that can be adjusted in weight, it is possible to adjust the buoyancy, and it is possible to easily realize the optimum rotation condition of the water turbine by adjusting the weight. Can do.

  Furthermore, as shown in Example 2, a plurality of turbines with a number of floating blades having a floating function are arranged at a fixed interval and attached to a common main body so as to freely rotate. Can be transmitted at a speed up to a generator connected by a chain or the like, so that power can be generated by transmission of driving from a plurality of turbines, and the generated power can be increased. A small hydroelectric generator can be installed with simple incidental work by connecting the waterwheels with a plurality of floating functions that constitute the kite to both banks with chains.

  The present invention can be applied to, for example, a small hydroelectric generator.

In this configuration, the winged water wheel has a floating function around the fulcrum, and a weight is placed on the opposite side of the water wheel, making it less susceptible to changes in the water level, easy installation, and miniaturization possible. Thus, stable power generation can be achieved .

Claims (4)

  It has a floating function that is sealed with a cylindrical body, and the water wheel is installed inside a water wheel with many wings around the body and a winged water wheel. An arm that is connected to the rotating shaft of the water turbine by a chain or the like to be transmitted at an increased speed, a generator that is attached to the opposite side of the water wheel with respect to a fulcrum of the arm, and the generator An open circumferential flow type small hydroelectric generator including a weight that can be increased and decreased at a position close to the center. The arm swings around a fulcrum shaft in accordance with the movement of a water wheel having buoyancy in accordance with fluctuations in the water surface, so that the water wheel rotates at a substantially constant distance below the water surface and stably generates generated power. The power generator described in 1.   Cylindrical fuselage with a floating function in which air is sealed in the interior, and a structure in which a plurality of blades are arranged on a common base with a plurality of blades arranged around the fuselage. A plurality of bowl-shaped main bodies with waterwheels, transmission means connected to each rotation shaft of the plurality of waterwheels by a chain, etc., and transmitted at an increased speed, and a generator driven by the transmission means to generate electric power, A floating water turbine type open peripheral flow type small hydraulic power generator comprising a chain-like or string-like connecting means having a fixed length for connecting the saddle-shaped water turbine main body and both sides of the water channel. An arm supported with a certain length and swingable around the branch,
An electric means connected to the rotating shaft of the water turbine by a chain or the like to increase the speed and transmitted, and a generator attached to the opposite side of the water turbine from the rotating shaft of the water wheel with respect to the fulcrum of the arm; Bamboo powder production apparatus characterized in that it can be located near the generator.

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