JP7055351B2 - Power generator - Google Patents

Description

The present invention is a ship-shaped power generator equipped with a drum-shaped water wheel and a screw-shaped water wheel. More specifically, the present invention is moored on running water such as a river or an aqueduct, and the water wheel is rotated by the flow of water. It relates to a power generation device that efficiently generates power.

Conventionally, as a device of this kind, the applicant of the present application has proposed a drum type water turbine raft power generation device of Utility Model Registration No. 3173631 (see Patent Document 1).

As shown in FIGS. 8 and 9, the drum-type turbine raft power generation device 1 is provided with two pairs of drum-type turbines 3 on both sides of the hull 2, and an axle 4 is provided at the center of the drum-type turbine 3. It is threaded. The axle 4 is connected to the differential gear (differential gear) 5 in the ship interior portion, the differential gear 5 is connected to the shaft 6, and the shaft 6 is connected to the generator 7.

The drum-type turbine power generation device 1 having such a configuration rotates the axle 4 by rotating the drum-type turbine 3 with the flow of water, and transfers the rotational force from the shaft 6 to the generator 7 via the differential gear 5. It is a mechanism to generate electricity by transmitting.

As shown in FIG. 10, the electric power generated by the generator 7 is sent to a support column 8 erected on land by a transmission line 9, and further from the transmission line 9 to a predetermined power supply facility via an external transmission line 10. Supply power. The reference numeral WL (water-line) in FIGS. 9 and 10 indicates a waterline.

Utility Model Registration No. 3173631 Gazette

In this conventional example of the drum type turbine power generation device 1, the electric power generated by amplifying the rotational force and torque is increased by adding the drum type turbine 3 or expanding the width of the drum type turbine 3. However, in the structure of the drum type water turbine 3, the amount of power generation thereof is limited.

Therefore, the drum type water turbine raft power generation device 1 in the conventional example has a problem that it must be solved by improving the structure of the water turbine to generate more efficient power generation and increase the amount of power generation. There is.

The gist of the present invention for solving the above-mentioned problems of the conventional example is a power generation device that is moored in a river or an irrigation canal and rotates a drum type water wheel and a screw type water wheel by a flow of water to generate power. The device includes a hull that floats on running water, at least a pair of the drum-shaped turbines provided on both sides of the hull, an axle that passes through the center of the drum-shaped turbine and rotates with the rotation of the drum-shaped turbine, and the axle. A first gear connected to and transmitted its rotation, a transmission whose rotation is transmitted via a first shaft connected to the first gear, and a second shaft connected to the transmission. The rotation is transmitted to the generator to generate power, the screw type water turbine provided near the bottom of the hull, and the second gear whose rotation is transmitted via the third shaft connected to the screw type water turbine. The drum-shaped water turbine includes, at least, a generator whose rotation is transmitted via a fourth shaft connected to the second gear to generate power, and the drum-shaped water turbine includes a cylinder and a plurality of pieces provided on the cylinder. The blade has a bent portion in a state of being bent toward the receiving surface side of the water flow along the edge portion at a position separated from the tubular body, and the bottom of the hull is formed. It is formed with a required inclination angle from the central portion to the stern side to open the front of the screw type turbine.

Further, the screw type turbine has four or a plurality of blade pieces along the central portion of the center, and the outer edge of the blade pieces is bent toward the receiving surface side of the water flow.
Is included.

According to the power generation device according to the present invention, power is generated by a generator using two types of water wheels, a pair of drum-type water wheels provided on both sides of the hull and a screw-type water wheel provided near the bottom of the hull on the stern side. , The amount of power generation increases and more efficient power generation becomes possible.
Further, since the blade of the drum type water turbine has a bent portion formed in a bent state on the receiving surface side of the water flow along the edge portion at a position separated from the cylinder, the water flow hits the bent portion and presses the pressure. As a result, the torque and rotational force of the drum-type turbine are amplified, which is an excellent effect.

Further, the screw type water turbine has four or a plurality of blade pieces along the central portion of the center, and the outer edge of the blade pieces is bent toward the receiving surface side of the water flow. The water flow hits the bent portion to increase the pressing force, and as a result, the torque and rotational force of the screw type turbine are amplified, which is an excellent effect.

The bottom of the hull is formed with a required inclination angle from the center to the stern side, and the front of the screw-type turbine is opened, so that the water flow in this open portion is screw-shaped. The pressing force increases when it hits the front surface of the water turbine, and as a result, the torque and rotational force of the screw type water turbine are amplified, which is an excellent effect.

It is a top view which shows schematically the power generation apparatus 11 which concerns on this invention. It is a side view which shows schematically the power generation apparatus 11 which concerns on this invention. FIG. 5 is a side view schematically showing a power generation device 11 according to the present invention, omitting one drum type water turbine 12 and one side portion 19. It is a front view of the drum type water turbine 12. FIG. 4 is a cross-sectional view taken along the line AA of FIG. It is a front view of the screw type water turbine 21. It is a side view of a screw type water turbine 21. It is a top view of the drum type water turbine raft power generation device 1 which concerns on the conventional example. It is a side view of the drum type water turbine raft power generation device 1 which concerns on the conventional example. It is explanatory drawing which shows the operating state of the drum type water turbine raft power generation apparatus 1 which concerns on the prior art.

Next, an embodiment of the present invention will be described in detail with reference to the drawings. In addition, in order to facilitate understanding, the parts corresponding to the conventional example will be described with the same reference numerals as those of the conventional example.

First, in FIGS. 1 to 3, reference numeral 11 indicates a power generation device, and the power generation device 11 includes a hull 2 floating on running water, a pair of drum-shaped water wheels 12 provided on both sides of the hull 2, and a drum-shaped water wheel 12. An axle 4 that rotates along with the rotation of the drum-shaped turbine 12 through an axis through the center, a first gear 5a that is connected to the axle 4 and whose rotation is transmitted, and a first shaft 6a that is connected to the first gear 5a. In the vicinity of the transmission 13 whose rotation is transmitted via the transmission 13, the generator 7 whose rotation is transmitted via the second shaft 6b connected to the transmission 13 to generate power, and the bottom 2b on the stern 2a side of the hull 2. It is composed of a screw type water turbine 21 to be provided and a second gear 5b whose rotation is transmitted via a third shaft 6c connected to the screw type water turbine 21. Then, the rotation is transmitted to the generator 7 via the fourth shaft 6d connected to the second gear 5b to generate electricity.

The hull 2 is formed in a hull shape or a raft shape, is moored in a river, an irrigation canal, or the like, and is floated on running water.

As shown in FIGS. 4 and 5, the drum-shaped water turbine 12 includes a drum-shaped cylinder 14 and a plurality of blades 15 provided on the cylinder 14.

As shown in FIG. 5, the blade 15 is formed in a substantially L shape, and the blade 15a and the cylinder 14 provided along the outer peripheral portion 14a of the cylinder 14 and the side portion 14b of the cylinder 14. A pair of blades 15 is formed by the outer peripheral portion 14a and the other blade 15b provided along the other side portion 14c, and a gap 16 is provided between the one blade 15a and the other side portion 14c. ing.
A plurality of pairs (8 pairs in FIG. 4) of the pair of blades 15 are provided at predetermined intervals.
Reference numeral 25 in FIGS. 4 and 5 indicates a shaft hole provided in the tubular body 14.

Further, the blade 15 (one blade 15a, the other blade 15b) is a bent portion 17 in a state of being bent toward the receiving surface side of the water flow (see arrow B) along the edge portion at a position separated from the tubular body 14. Is formed (see FIG. 5).
Due to the presence of the bent portion 17, the water flow hits the bent portion 17 and the pressing force increases, and as a result, the torque and the rotational force of the drum type water turbine 12 are amplified.

The axle 4 passes through the center of the drum-type turbine 12 and rotates with the rotation of the drum-type turbine 12, and transmits the rotation of the drum-type turbine 12 to the first gear 5a.

The first gear 5a serves to connect with the axle 4 and change its rotation to transmit the rotation to the first shaft 6a.

The end of the first shaft 6a is connected to the transmission 13 and its rotation is transmitted.

The transmission 13 is connected to the end of the first shaft 6a to play a role of changing the ratio of the rotation speed thereof, and at the same time, transmits the rotation from the transmission 13 to the generator 7 via the second shaft 6b. ..

The generator 7 serves to generate electricity by connecting the ends of the second shaft 6b and transmitting the rotation thereof. Unlike the conventional example, only one generator 7 is provided to improve the power generation efficiency.

As shown in FIG. 6, the screw type turbine 21 has four (or a plurality) blade pieces 23 along the central central portion 22.
The outer edge 24 of the blade piece 23 is bent toward the receiving surface side of the water flow (see arrow B). The water flow hits the bent edge portion 24 to increase the pressing force, and as a result, the torque and rotational force of the screw type water turbine 21 are amplified.

Further, the screw type water turbine 21 is connected to the long third shaft 6c, and the end of the third shaft 6c is connected to the second gear 5b to transmit the rotation thereof.

The second gear 5b is connected to the fourth shaft 6d, changes the direction of its rotation, and serves to transmit the rotation to the generator 7 via the transmission 18, and the rotation is transmitted to the generator 7. It is a mechanism to generate electricity.

As shown in FIG. 3, the bottom 2b of the hull 2 is formed with an inclined portion 20 having a required inclination angle from the central portion 2c to the stern 2a side. By forming the inclined portion 20 on the bottom 2b in this way, the front surface of the screw type water turbine 21 is opened.
Therefore, the water flow flowing through the open portion, in other words, the water flow flowing along the inclined portion 20, hits the front surface of the screw type water turbine 21, so that the pressing force increases, and as a result, the torque and rotation of the screw type water turbine 21 are increased. The force is amplified.

Further, as shown in FIG. 3, wall-shaped side portions 19 are provided on both sides of the inclined portion 20. Due to the presence of the side portion 19, the water flow flowing through the inclined portion 20 is concentrated on the front surface of the screw type turbine 21 without flowing in both sides of the bottom 2b, and as a result, the pressing force of the screw type turbine 21 is further increased. do.

The power generation device 11 configured as described above includes two types of turbines: a pair of drum turbines 12 provided on both sides of the hull 2 and a screw turbine 21 provided near the bottom 2b on the stern 2a side of the hull 2. Since it is used at the same time to generate electricity with a generator, the amount of electricity generated increases and more efficient power generation becomes possible.
The arrow B in FIGS. 1 to 3 indicates the water flow direction.
It is also possible to selectively use either the drum type turbine 12 or the screw type turbine 21 to generate electricity with a generator.

As described in the conventional example, the electric power generated in this way is sent to the support column 8 erected on land by the transmission line 9, and further, the electric power generated from the transmission line 9 is interposed via the external transmission line 10 to provide a predetermined electric power supply facility. (See FIG. 10).

WL (water-line) Waterline 1 Drum type water wheel Weir power generation device 2 Hull 2a Hull 2b Ship bottom 2c Central part 3 Drum type water wheel 4 Axle 5 Differential gear
5a 1st gear 5b 2nd gear 6 shaft 6a 1st shaft 6b 2nd shaft 6c 3rd shaft 6d 4th shaft 7 Generator 8 props 9 transmission line 10 external transmission line 11 power generation device 12 drum type water wheel 13 transmission 14 cylinders Body 14a Outer circumference 14b, 14c Side 15 Blades 15a One blade 15b The other blade 16 Gap 17 Folded part 18 Transmission line 19 Side part 20 Inclined part 21 Screw type water wheel 22 Central part 23 Blade piece 24 Edge part

Claims (2)

A power generation device that is moored in a river or irrigation canal and rotates a drum-type turbine and a screw-type turbine with the flow of water to generate electricity.
The power generation device includes a hull that floats on running water, at least a pair of the drum-shaped turbines provided on both sides of the hull, and an axle that passes through the center of the drum-shaped turbine and rotates with the rotation of the drum-shaped turbine. A first gear that is connected to the axle and whose rotation is transmitted, a transmission whose rotation is transmitted via a first shaft that is connected to the first gear, and a second shaft that is connected to the transmission. The rotation is transmitted via a generator to generate power, the screw-type water wheel provided near the bottom of the hull, and a third shaft connected to the screw-type water wheel. It is provided with at least two gears and the generator whose rotation is transmitted via a fourth shaft connected to the second gear to generate power.
The drum-shaped water turbine has a cylinder and a plurality of blades provided on the cylinder.
The blade is formed with a bent portion in a state of being bent toward the receiving surface side of the water flow along the edge portion at a position separated from the tubular body .
The bottom of the hull is formed with a required inclination angle from the central part to the stern side, and the front of the screw type water turbine is open.
A power generation device featuring. The screw type water turbine has four or a plurality of blade pieces along the central portion of the center, and the outer edge of the blade pieces is bent toward the receiving surface side of the water flow. The power generation device according to claim 1.

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