JP5521228B2 - 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, according to a first aspect of the present invention, there is provided a hydroelectric generator using flowing water that includes two parallel straight guide rails and an arcuate curved portion connecting them. The track-shaped guide rail is arranged in a longitudinal direction with the length direction of the straight guide rail parallel to the water surface, and is guided by the track-shaped guide rail. A plurality of carriers are connected at regular intervals so as to be able to circulate, and the carriers include a plurality of sets of guide rollers guided by the track-type guide rails, a plate for supporting the guide rollers, It has a power transmission roller attached to a required position of the plate in a freely rotatable manner, and a water receiving runner is detachably attached to the carrier to form a truck type water wheel. A screw is disposed in parallel with the carrier so that the power transmission roller engages and disengages from a side surface of a recess formed between the blades of the screw, and a water receiving runner receives a water flow so that the carrier is connected to the track-type guide rail. The screw is rotated through the power transmission roller, and the power is generated by rotating the generator connected to the screw.

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, the track form according to claim 1 Two sets of guide rails and carriers connected at equal intervals are connected in parallel so as to be guided by the track type guide rail and can be circulated in parallel. 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 track type guide rails, thereby constituting a track type water wheel, and a power transmission roller to each of the carriers Are rotatably attached, and the screws are arranged so that each power transmission roller engages and disengages from a side surface of a recess formed between the blades of the screw in parallel with each carrier. Each water carrier runner receives a water flow and each carrier is synchronously guided by each track-type guide rail and travels, and each screw rotates via each power transmission roller, It is characterized by generating electricity by rotating a generator connected to at least one of the screws.

  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.

  Moreover, the flowing water utilization type hydroelectric generator of Claim 4 of this invention WHEREIN: In invention of Claims 1-3, the said water receiving runner has a slit hole, and the position of the slit hole is the front and back. 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, attachment or detachment of a generator can be performed easily. Furthermore, if a gear with fewer teeth than the number of gear teeth formed on the outer periphery of the blade of the screw is attached to the rotating shaft of the generator, the generator is rotated at an increased speed, and the output of the generator is reduced. Can be improved.

  Moreover, according to the invention which concerns on Claim 4, it is not necessary to attach or detach a water receiving runner according to the change of the flow volume 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.

  The flowing-water-use hydroelectric generator of this embodiment shown in FIG. 1 to FIG. 3 connects two parallel straight guide rails 1a and a guide rail 1b having an arcuate curved portion connecting them in an endless manner. Track-type guide rail 1 having a track shape for an athletic stadium, a plurality of sets of guide rollers 2a guided by the track-type guide rails, a plate 2b for supporting the plurality of sets of guide rollers 2a, and a rotation to the plate 2b A carrier 2 having a power transmission roller 2c attached freely, a linkage 3 for connecting a number of such carriers at equal intervals, a screw 4 formed of leads having required dimensions, a generator 5, and a water runner 6 and the basic configuration.

  The track-type guide rail 1 is arranged in a longitudinal direction in which the length direction of the straight guide rail 1a is parallel to the flow surface so that a large number of carriers 2 guided by the track-type guide rail 1 can circulate. The carrier 2 is connected to the track 3 at equal intervals by a plurality of guide rollers 2a guided by the track-type guide rail, a plate 2b for supporting the guide rollers 2a, and a plate 2b A power transmission roller 2c rotatably attached to a required position is provided, and a water receiving runner 6 is detachably attached to the carrier 2 with a fastening bolt or the like to constitute a truck type water wheel. The track-type 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 track-type water turbine receives the water flow 9, the carrier 2 travels while being guided by the track-type guide rail 1, and the power transmission roller 2c 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 size of the screw 4 is one third of the mounting pitch of the power transmission roller 2c, the water runner 6 of the track-type 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. The carrier and the water receiving runner located at the curved portion of the guide rail 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. The track-type guide rail 1 and the linkage 3 are equally spaced. A plurality of carriers 2 connected at equal intervals by rack-shaped guide rails 11 and linkages 13 having the same specifications as a large number of the carriers 2 connected to each other are arranged in parallel to face each other, A water receiving runner 16 is detachably attached with a fastening bolt or the like to each of the opposite carriers 2 and 12 so that the carriers 2 and 12 are synchronously guided and run by the track-type guide rails 1 and 11. A truck-shaped 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 truck-shaped water turbine receives the water flow, the carriers 2 and 12 travel while being guided by the track-shaped 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 FIG. 6 is a plan view showing the power transmission unit when a gear is formed on the outer periphery of the blade of the screw.

  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.

  As shown in FIG. 5, when the gear 18 is attached to the end of the screw 14, the power transmission roller 2c passes through the side surfaces of the recesses between the blades of the screw. If it is larger than the bottom diameter of the concave portion of the screw 14, it will buffer with the power transmission roller 2 c, and the tooth tip diameter of the gear 18 must be smaller than the bottom diameter of the concave portion 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, by forming the gear 8 on the outer periphery of the blade of the screw 24 as shown in FIG. 6, 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. 9 and 10, compared with the power transmission roller 2c shown in FIG. 5, the power transmission roller 22c shown in FIG. 6 protrudes by the tooth depth of the gear 8 and is attached to the plate 22b. There is a need.

  FIG. 7 is a front view showing a schematic configuration of still another embodiment of the flowing-water-use hydroelectric generator. The carrier and the water receiving runner located at the curved portion of the guide rail are omitted. FIG. 8 shows a cross-sectional view of the portion BB in FIG. 7 from the direction of the arrow.

  FIG. 7 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. 8, the flow of water flows to the rear water runner through the slit hole 26a and the slit hole 36a, thereby generating a water flow between the water 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 attaching a track-type 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. 11, the flowing-water-use hydroelectric generator of the present invention has a simple structure, and a track-type guide rail is attached to the frame 30 so that the length direction of the straight guide rail is perpendicular to the ground. If installed, it can also be used for rivers and waterways with drops like waterfalls.

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 utilization type hydroelectric generator, and the carrier and water receiving runner which are located in the guide rail of a curve part are abbreviate | omitted. 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 front view which shows other embodiment of a flowing water utilization type hydroelectric generator, and the carrier and water receiving runner which are located in the guide rail of a curve part are omitted. FIG. 8 is a cross-sectional view taken along the line B-B in FIG. 7. 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 Track-type guide rails 1a, 11a, 21a Linear guide rails 1b, 11b, 21b Guide rails 2, 12, 22, 32 with arcuate curved portions Carriers 2a, 12a, 22a, 32a Guide rollers 2b, 12b, 22b, 32b Plate 2c, 12c, 22c, 32c Power transmission roller 3, 13, 23 Link 4, 14, 24 Screw 5, 15 Generator 6, 16, 26, 36, 46 Water receiving runner 26a, 36a Slit Hole 8, 18, 28, 38 Gear 9, 29 Water flow 10, 20, 30 Frame 19 Water channel

Claims (4)

  Two parallel straight guide rails and a guide rail with an arcuate curved portion connecting them are endlessly connected to form a track shape for an athletic stadium, and the length of the straight guide rail is the length of the straight guide rail. Parallel to the water surface and disposed in the vertical direction, the multiple carriers guided by the track-type guide rails are connected at regular intervals in a continuous manner so that they can circulate, and the carriers are connected to the track-type guide. A plurality of guide rollers guided by rails, a plate that supports the guide rollers, and a power transmission roller that is rotatably attached to a required position of the plate, and a water receiving runner can be attached to and detached from the carrier It is attached to form a truck-shaped water wheel, and the power transmission roller is formed on the side surface of the recess formed between the blades of the screw in parallel with the carrier. A screw is disposed so as to be coupled and detached, a water receiving runner receives a water flow, the carrier is guided by the track-type guide rail, and the screw rotates via the power transmission roller, A flowing-water-use hydroelectric generator characterized by generating electricity by rotating a continuous generator. The track-type guide rail according to claim 1 and two sets of carriers that are guided by the track-type guide rail and connected at equal intervals by means of continuous connection 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 of the carriers is synchronously guided and traveled by each of the track type guide rails, thereby forming a track type 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 screw is disposed, a water receiving runner receives a water flow, and each of the carriers is guided by each of the track-type guide rails and travels. Via a power transmission roller rotates each of said screw, running water utilized 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.   4. The running water-based 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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