JP5736575B2 - Hydroelectric power generation system using running water - Google Patents

Description

  The present invention relates to a hydroelectric power generation apparatus that generates power by using flowing water energy in rivers and irrigation canals that are close to each other.

  While efforts are being made to combat global warming, power generation systems using renewable energy such as wind power generation, hydroelectric power generation, and solar power generation are being reviewed. Wind power generation does not have that power when there is no wind, and solar power generation has the disadvantage that stable power generation cannot be obtained at all times because the amount of power generation is greatly reduced during rainy weather. Hydropower generated by water currents has the advantage that stable power generation can be expected at all times, and that water can be artificially created if water is available.

  In our daily life, there are various water streams such as rivers, water and sewage systems, drains, and agricultural waterways. A water stream is a stream of water that is a much denser fluid than air, and it uses the water stream that is close to us as an energy source, even though it is more valuable as an energy source than wind power. There was no active hydropower generation.

  Conventional hydroelectric generators are mainly used to generate electricity using circular turbines. Hydroelectric generators using circular turbines are circular turbines in which buckets and water receiving plates are arranged radially around a rotating shaft. In general, a method of pouring water over the water is necessary, and a head for pouring the water flow is required, and in order to obtain large power, the diameter of the water turbine needs to be considerably increased, and there is a problem that it cannot be made inexpensive.

Therefore, as a hydroelectric generator for a truck-shaped water turbine that uses water flow instead of the conventional circular water turbine, a sprocket is fixed to two front and rear rotating shafts, a chain is connected, and a plurality of water runners are attached to this chain. For example, Patent Document 1 and Patent Document 1 disclose a water flow-use power generation device in which a sprocket is driven by the movement of a water receiving runner that receives the hydropower of a water flow to extract power from an output shaft and rotate a generator or the like. 2 is disclosed.
JP 2000-274342 A JP 2003-13834 A

  The techniques disclosed in Patent Document 1 and Patent Document 2 relate to a truck-type water turbine using a chain, and require frequent maintenance such as elongation of the chain itself and sprocket teeth. In addition, the amount of play (play allowance) at the connecting part is required due to the structure of the chain itself, so it often causes meandering during driving, and the accuracy is low, so mechanical efficiency is poor and power is consumed more than necessary. There is a point. In addition, dust is generated with the wear of the chain and sprocket, which is a factor that deteriorates the natural environment.

  In addition, since the rotating shaft is used, when the water runner is widened and receives a large amount of water, the rotating shaft becomes longer, the rotating shaft is deflected, and the rotating shaft shakes. There is a problem that the power is taken out from the shaft.

  In addition, the greater the number of water runners, the greater the force, but if the distance between the water runners is not adjusted according to the water flow speed, the rear water runner will be behind the front water runner and generate water flow force. Without water, the water between the water receiving runners becomes dead water, which hinders the operation of the water receiving runners. Therefore, the power generation device becomes longer in the water flow direction, and the device itself becomes larger.

  The present invention has been created in view of such circumstances, and can generate electricity using a water stream that is close to the energy source, and the device itself is compact without using a chain, a sprocket, and a rotating shaft. The object is to provide a hydroelectric generator.

  In order to achieve the above object, the present invention provides a hydroelectric power generation device using flowing water according to claim 1 of the present invention, wherein the elliptical guide rail has an elliptical long axis direction parallel to the flowing water surface and an elliptical short axis. It is arranged so that the direction is perpendicular to the water surface, and is connected at regular intervals in a continuous manner so that a large number of carriers guided by the elliptical guide rail can circulate. A plurality of guide rollers guided by a guide rail, a plate for supporting the guide roller, and a power transmission roller rotatably attached to a required position of the plate, and a water receiving runner is attached to and detached from the carrier The screw is arranged so that the power transmission roller is engaged with and detached from the side surface of the recess formed between the blades of the screw in parallel with the carrier. The water receiving runner receives the water flow and travels while the carrier is guided by the elliptical guide rail, the screw rotates through the power transmission roller, and the generator connected to the screw rotates. It is characterized by generating electricity.

Then, running water utilized hydropower device according to claim 2 of the present invention, which corresponds to the case where the width of the water receiving runner widely to receive more of the water flow, oval claim 1 Two sets of guide rails and carriers that are guided by the elliptical guide rail and connected at equal intervals so as to be able to circulate are arranged in parallel to face each other, and the opposing carriers are synchronized. A water receiving runner is detachably attached to and connected to each of the carriers facing each other so as to be guided by each of the elliptical guide rails to constitute an elliptical water wheel, and a power transmission roller is connected to each of the carriers Are attached to each side of the recess formed between the blades of the screw in parallel with each of the carriers. The carrier receives a water flow and each of the carriers is synchronously guided by each of the elliptical guide rails, and each of the screws rotates via each of the power transmission rollers, so that at least one of the screws The power generator is characterized in that it generates power by rotating a generator connected to the.

  Further, according to a third aspect of the present invention, in the hydroelectric power generation apparatus using flowing water according to the first and second aspects, a gear is formed on the outer periphery of the blade of the screw, and the gear is a generator. And a gear mounted on the rotating shaft of the motor, and the generator is rotated to generate electric power.

  According to a fourth aspect of the present invention, there is provided a hydroelectric power generation apparatus using flowing water according to the first and second aspects, wherein a gear is formed on the outer periphery of the blade of the screw, and the gear is an outer rotor. It is characterized by meshing with a gear formed on the outer peripheral portion of the rotor of the type generator and generating electricity by rotating the generator.

  Moreover, the flowing-water-use hydroelectric generator according to claim 5 of the present invention is the invention according to claims 1 to 4, wherein the water receiving runner has a slit hole, and the position of the slit hole is the front and rear. It is characterized by being different from the water runner.

  According to the first and second aspects of the present invention, it is possible to generate power using a water flow that is close to the energy source, and it is possible to provide a hydroelectric power generation device without using a chain, a sprocket, and a rotating shaft. It does not require frequent maintenance and uses guide rails and guide rollers to minimize wear and protect the natural environment. In addition, since the water receiving runners are detachable, the distance between the water receiving runners can be easily changed, and the water flow rate and the flow velocity can be changed, thereby efficiently generating power.

  Furthermore, according to the invention which concerns on Claim 2, it is possible to widen the width | variety of a water receiving runner, to receive more water flows, and to improve the output of a generator.

  Moreover, according to the invention which concerns on Claim 3 thru | or 4, a generator can be attached or detached easily. Further, when a gear having a smaller number of teeth than that of the gear formed on the outer peripheral portion of the blade of the screw is attached to the rotating shaft of the generator, or formed on the outer peripheral portion of the rotor of the outer rotor type generator. In this case, the generator is rotated at a higher speed, and the output of the generator can be improved.

  Moreover, according to the invention which concerns on Claim 5, it is not necessary to attach or detach a water receiving runner according to the change of the flow rate of a water flow, and a flow velocity, a water flow generate | occur | produces between water receiving runners, and between water receiving runners The dead water state of the water can be eliminated, the operation of the water receiving runner can be made smooth, and the apparatus itself can be miniaturized.

  The best mode for carrying out the present invention will be described with reference to the drawings.

  FIG. 1 is a side view showing a schematic configuration of a flowing-water-use hydroelectric generator according to this embodiment, and FIG. 2 is a cross-sectional view taken along the direction of the arrow AA in FIG. FIG. 3 is an enlarged plan view of the power transmission unit in FIG.

  1 to 3, the flowing-water-use hydroelectric generator of this embodiment includes an elliptical guide rail 1, a plurality of guide rollers 2a guided by the elliptical guide rail, and the plurality of sets of guide rollers. A plate 2b for supporting 2a, a carrier 2 having a power transmission roller 2c rotatably attached to the plate 2b, a plurality of linkages 3 for connecting a plurality of the carriers at equal intervals, and leads having required dimensions. The screw 4, the generator 5, and the water receiving runner 6 are basically configured.

  The elliptical guide rail 1 is disposed such that the major axis direction of the ellipse is parallel to the water surface and the minor axis direction of the ellipse is perpendicular to the water surface, and is guided by the elliptical guide rail 1. A plurality of carriers 2 are connected at equal intervals by a linkage 3 so that they can circulate, and the carrier 2 includes a plurality of sets of guide rollers 2a guided by the elliptical guide rail 1 and these guide rollers 2a. And a power transmission roller 2c rotatably attached to a required position of the plate 2b. A water receiving runner 6 is detachably attached to the carrier 2 by a fastening bolt or the like. An elliptical water wheel is constructed. The elliptical guide rail 1 is supported and erected by a support member (not shown).

  Parallel to the carrier 2, the screw 4 is disposed so that the power transmission roller 2c engages and disengages from the side surface of the recess formed between the blades of the screw 4, and both ends of the screw 4 are supported by bearings. A generator 5 is connected to the screw 4. The power transmission roller 2c has a circular arc shape with a convex outer diameter surface. When the side surface of the blade of the screw 4 is orthogonal to the axial center line of the screw, the outer diameter surface is linear. These rollers (such as deep groove ball bearings) may also be used.

  When the water receiving runner 6 of the elliptical water wheel receives the water flow 9, the carrier 2 travels while being guided by the elliptical guide rail 1, and the power transmission roller 2 c attached to a required position of the carrier 2. Is brought into contact with and engaged with the side surface of the blade of the screw 4, so that a rotational force is applied to the screw 4, the screw 4 rotates, and the generator 5 connected to the screw 4 rotates to generate power. be able to.

  Further, for example, when the lead dimension of the screw 4 is set to one third of the mounting pitch of the power transmission roller 2c, the water receiving runner 6 of the elliptical water wheel moves by the distance of the mounting pitch of the power transmission roller 2c. In this case, the screw 4 is rotated three times, and is substantially increased in speed and rotated. As a result, the structure of the conventional speed increasing portion can be simplified and increased.

  Next, FIG. 4 is a front view showing a schematic configuration of another embodiment of the hydropower generator using flowing water. Only the carriers and water receiving runners located at the highest and lowest positions of the elliptical guide rail are shown, and the other carriers and water receiving runners are omitted.

  The flowing-water-use hydroelectric generator shown in FIG. 4 corresponds to a case where a water receiving runner is widened to receive a larger amount of water flow, and is equidistant between the elliptical guide rail 1 and the linkage 3. A plurality of carriers 2 connected at equal intervals by an elliptical guide rail 11 and a linkage 13 having the same specifications as the plurality of carriers 2 connected to each other are arranged in parallel to face each other, and the left and right sides facing each other are arranged. A water receiving runner 16 is detachably attached with a fastening bolt or the like to each of the carriers 2 and 12 facing each other so that the carriers 2 and 12 are synchronously guided by the elliptical guide rails 1 and 11 and run. An elliptical water wheel is constructed.

  Parallel to the carriers 2 and 12, the screws 4 and 14 are disposed so that the power transmission rollers 2 c and 12 c engage and disengage from the side surfaces of the recesses formed between the blades of the screws 4 and 14. Both ends of 14 are supported by bearings, and a generator is connected to the screws 4 and 14.

  When the water receiving runner 16 of the elliptical water wheel receives the water flow, the carriers 2 and 12 travel while being guided by the elliptical guide rails 1 and 11 and are attached to the required positions of the carriers 2 and 12. When the power transmission rollers 2c and 12c come into contact with and engage with the side surfaces of the blades of the screws 4 and 14, a rotational force is applied to the screws 4 and 14, and the screws 4 and 14 rotate. , 14 can be rotated to generate power.

  The generator employs a coreless generator, and this coreless generator is configured as a single-phase or three-phase AC generator with a winding coil using a neodymium magnet and a rectangular wire. Of course, depending on the water flow and the amount of water, the number of screws 4 and 14 and the number of generators can be increased or decreased.

  FIG. 5 is a plan view showing a power transmission unit when the generator is rotated at an increased speed, and FIGS. 6 and 7 are plan views showing the power transmission unit when a gear is formed on the outer periphery of the blade of the screw. It is.

  As shown in FIG. 5, a gear 18 is attached to the end of the screw 14, the gear 18 meshes with a gear 28 attached to the rotating shaft of the generator 15, and the generator 15 can be rotated to generate power. When the gear 18 is attached to the end of the screw 14, the power transmission roller 2 c passes through the side surfaces of the recesses between the blades of the screw so that the tooth tip diameter of the gear 18 is larger than the bottom diameter of the recesses of the screw 14. If it is increased, the power transmission roller 2c is buffered, and the tooth tip diameter of the gear 18 must be smaller than the bottom diameter of the recess of the screw 14. Therefore, when the rotation of the generator 15 is increased, the outer diameter of the screw 14 needs to be increased.

  However, as shown in FIGS. 6 and 7, by forming the gear 8 on the outer periphery of the blade of the screw 24, it is not necessary to increase the outer diameter of the screw, and a large speed increase can be obtained with a small diameter screw. . However, as shown in FIGS. 10 and 11, compared with the power transmission roller 2c shown in FIG. 5, the power transmission roller 22c shown in FIG. 6 and FIG. It is necessary to attach to.

  Further, as shown in FIG. 6, a gear 8 is formed on the outer peripheral portion of the blade of the screw 24, the gear 8 meshes with a gear 38 attached to the rotating shaft of the generator 15, and the generator 15 is rotated to generate power. can do. This is because the generator 15 can be easily attached and detached, and a gear 38 having fewer teeth than the gear 8 formed on the outer periphery of the blades of the screw 24 is attached to the rotating shaft of the generator. In this case, the generator 15 can be rotated at an increased speed to generate power, and the output of the generator can be improved.

  Further, as shown in FIG. 7, a gear 8 is formed on the outer peripheral portion of the blade of the screw 24, and the gear 8 meshes with a gear 48 formed on the outer peripheral portion of the rotor of the outer rotor type generator 25. Power can be generated by rotating 25. This is because the generator 25 can be easily attached and detached, and the gear 48 having a smaller number of teeth than the gear 8 formed on the outer periphery of the blades of the screw 24 is used for the rotor of the outer rotor type generator 25. When formed in the outer peripheral portion, the generator 25 can be rotated at an increased speed to generate power, and the output of the generator can be improved.

  FIG. 8 is a front view showing a schematic configuration of still another embodiment of the flowing-water-use hydroelectric generator. Only the carriers and water receiving runners located at the highest and lowest positions of the elliptical guide rail are shown, and the other carriers and water receiving runners are omitted. FIG. 9 shows a cross-sectional view of the portion BB in FIG. 8 from the direction of the arrow.

  FIG. 8 shows a case where there is a slit hole in the water receiving liner of the flowing-water-use hydroelectric generator shown in FIG. The greater the number of water runners, the greater the force, but if the distance between the water runners is not adjusted according to the water flow speed, the rear water runner will be behind the front water runner and will not receive water flow force. The water between the water receiving runners becomes dead water and hinders the operation of the water receiving runners. In order to solve this problem, the water receiving runner 26 has a slit hole 26a, the water receiving runner 36 has a slit hole 36a, and the positions of the slit hole 26a and the slit hole 36a are as shown in FIG. It is configured to be different from the front and rear water runners.

  As shown in FIG. 9, the flow of water flows to the rear water receiving runner through the slit hole 26a and the slit hole 36a, thereby generating a water flow between the water receiving runners. The dead water condition can be eliminated and the operation of the water receiving runner can be made smooth.

  In addition, the flowing-water-use hydroelectric generator of the present invention has a simple structure, and by mounting an elliptical guide rail to the frame, it can be easily placed on a truck with a simple crane and carried to the site in a short time. It can be installed in irrigation canals and can be easily removed as well.

  Furthermore, as shown in FIG. 12, the flowing-water-use hydroelectric generator of the present invention has a simple structure, and an elliptical guide rail is attached to the frame 30 so that the major axis direction of the elliptical guide rail is perpendicular to the ground. It can be used for rivers and waterways that have a drop like a waterfall.

It is a side view showing a schematic structure of an embodiment concerning a running water type hydroelectric generator of the present invention. It is AA sectional view taken on the line in FIG. It is the top view which expanded and showed the power transmission part in FIG. It is a front view which shows other embodiment of a flowing-water-use type hydroelectric power generation apparatus, shows only the carrier and water receiving runner positioned at the highest and lowest positions of the elliptical guide rail, and omits the other carriers and water receiving runners. It is. It is a top view which shows the power transmission part in the case of rotating a generator at high speed. It is a top view which shows the power transmission part at the time of forming a gearwheel in the outer peripheral part of the blade | wing of a screw. It is a top view which shows the power transmission part at the time of forming a gearwheel in the outer peripheral part of the blade | wing of a screw, and the outer peripheral part of the rotor of an outer rotor type generator. It is a front view which shows other embodiment of a flowing-water-use type hydroelectric generator, shows only the carrier and water receiving runner which are located in the highest and lowest positions of the elliptical guide rail, and other carriers and water receiving runners It is omitted. It is BB sectional drawing in FIG. It is sectional drawing which shows the engagement state of a screw and a power transmission roller. It is sectional drawing which shows the engagement state of the screw which formed the gearwheel in the outer peripheral part of the blade | wing, and the power transmission roller. It is a side view which shows embodiment in the place with a head of a flowing water utilization type hydroelectric generator.

1,11,21 Elliptical guide rails 2, 12, 22, 32 Carriers 2a, 12a, 22a, 32a Guide rollers 2b, 12b, 22b, 32b Plates 2c, 12c, 22c, 32c Power transmission rollers 3, 13, 23桿 4, 14, 24 Screw 5, 15 Generator 6, 16, 26, 36, 46 Water receiving runner 26a, 36a Slit hole 8, 18, 28, 38, 48 Gear 9, 29 Water flow 10, 20, 30 Frame 19 Water channel 25 Outer rotor generator in which gears are formed on the outer periphery of the rotor

Claims (5)

  The elliptical guide rail is arranged so that the major axis direction of the ellipse is parallel to the water surface and the minor axis direction of the ellipse is perpendicular to the water surface, and a large number of carriers are guided by the elliptical guide rail. Are connected at equal intervals so as to be able to circulate, and the carrier includes a plurality of sets of guide rollers guided by the elliptical guide rail, a plate supporting the guide roller, and a required position of the plate A power transmission roller attached rotatably to the carrier, and a water receiving runner is detachably attached to the carrier to form an elliptical water wheel, and the power transmission roller is parallel to the carrier between the blades of the screw. The screw is disposed so as to be disengaged from the side surface of the recess formed in the water, the water receiving runner receives the water flow, and the carrier is guided by the elliptical guide rail and travels. , The power transmission roller via said screw is rotated, flowing water utilized hydropower apparatus characterized by generating power by rotating a generator provided continuously to the screw. Two sets of the elliptical guide rail according to claim 1 and two carriers that are guided by the elliptical guide rail and connected at equal intervals so as to be able to circulate are arranged in parallel and facing each other. A water receiving runner is detachably attached to and connected to each of the carriers facing each other so that each carrier is synchronously guided and traveled by each of the elliptical guide rails to constitute an elliptical water wheel, A power transmission roller is rotatably attached to a required position of each carrier so that each power transmission roller engages and disengages in a side surface of a recess formed between the blades of the screw in parallel with each carrier. Each of the screws is disposed, a water receiving runner receives the water flow, and each of the carriers travels while being guided by each of the elliptical guide rails, via each of the power transmission rollers. Each of the screw Te rotates, water flow available hydropower apparatus characterized by generating power by rotating a generator provided continuously in at least one of the screw.   A gear is formed on the outer periphery of the blade of the screw, the gear meshes with a gear attached to a rotating shaft of the generator, and the generator is rotated to generate electric power. The described hydroelectric generator using flowing water.   A gear is formed on an outer peripheral portion of the blade of the screw, the gear meshes with a gear formed on the outer peripheral portion of a rotor of an outer rotor type generator, and the generator is rotated to generate electric power. A running water-based hydroelectric generator according to claim 1 or 2.   5. The flowing-water-use hydroelectric generator according to claim 1, wherein the water receiving runner has a slit hole, and the position of the slit hole is different from the front and rear water receiving runners.

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