JP2013068196A - Hydraulic power generation apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hydraulic power generation apparatus efficiently generating power with a small-scale facility, by using river water flowing through a terrain having a height difference, such as a river flowing in a mountain district.SOLUTION: The hydraulic power generation apparatus includes a water passage configured to branch a river flowing along the terrain having a height difference is provided. The water passage is provided in a down slope by using the height difference of the terrain, and level differences are formed in the water passage. A water turbine device is provided in the flowing water falling position of the level difference. The water turbine device is provided with a plurality of water turbines arranged on a shaft member in a coaxial state. The shaft member of the water turbines is rotatably supported. A rotation transmission means such as a chain provided in the shaft member is connected, and connected to a gear provided in a rotary shaft of a power generator via an accelerator. The level differences formed in the water passage are formed in a plurality of places along the water passage. The water turbine device provided in the flowing water falling position of each level difference is configured to form the water turbine in the shaft member.

Description

  The present invention relates to a hydroelectric generator that can efficiently obtain electric power by converting hydraulic energy generated by running water such as a river into electric power energy.

  Conventionally, large-scale hydroelectric power generation facilities using dams and rapids provided in mountainous areas have been the mainstream methods for obtaining electric power by using hydroelectric energy such as rivers. However, in recent years, it has been difficult to build large-scale dams in mountainous areas due to environmental problems, and thermal power generators have problems such as the generation of carbon dioxide adversely affecting the environment. The power supply tended to depend on nuclear power generators.

  However, nuclear power generators tend to shrink in size because problems such as radioactive contamination caused by earthquakes and the like are social problems. Therefore, in the future, there is a demand for a technology that efficiently obtains electric power while using a small scale without using nuclear power.

  As such a technique, the hydroelectric power generation facility described in Patent Document 1 is referred to. In the hydroelectric power generation facility in this document, a water intake provided under the surface of the sea or under the surface of the river is led to a hydro turbine in a power generation room installed underground through a water conduit, and the generated seawater or river water is further generated. It is made to return to the sea or river through the pumping means from the room.

  However, such hydroelectric power generation equipment is small compared with conventional dam equipment, but a power generation room is provided in the ground below the surface of the sea or below the surface of the river. There is a disadvantage that the construction becomes large.

  On the other hand, the development of a generator that uses river water is expected in consideration of the national land situation in Japan, where there are many mountains. Incidentally, referring to Patent Document 2, this document describes a water current generator in which a water wheel is provided on a floating base floated on a river and the floating base is pulled by a wire fixed to an anchor at the bottom of the water. Yes.

  However, as described above, the structure that obtains electric power by rotating the turbine blade with the floating base floating on the river causes the anchor at the bottom of the water to be destroyed or the wire to be cut if a rapid current such as flood occurs in the river. In addition, the power generator itself may be destroyed.

JP-A-2005-214187 JP 2005-351125 A

  The present invention has been made in view of the above-described circumstances, and efficiently uses a stream of water flowing through a terrain having a height difference, such as a river flowing through a mountainous area, while being a small-scale facility. An object of the present invention is to provide a hydroelectric power generation apparatus capable of obtaining electric power.

  In order to solve the above-mentioned problems, the hydroelectric generator according to claim 1 of the present invention is provided with a water channel constructed so as to divert a river flowing through a terrain having a height difference, and the water channel is utilized using the height difference of the terrain. In the hydroelectric power generator in which a step is provided in the middle of the water channel and a water turbine device is installed at a position where the water falls to the step, the water turbine device has a plurality of water wheels coaxially arranged on the shaft member in a coaxial state. The shaft member of the water turbine device is rotatably supported, and the rotation transmission means such as a chain is connected to the gear provided on the shaft member, and is connected to the gear provided on the rotation shaft of the generator via the accelerator. Features.

  The hydroelectric generator according to claim 2 of the present invention is provided with a water channel constructed so as to divide a river flowing through a terrain having a height difference, and the water channel is provided on a downward slope by utilizing the height difference of the terrain. In a hydroelectric power generation device in which a step is provided in the middle of a water channel, and a water turbine device is installed at a falling water position of the step, the steps provided in the water channel are provided at a plurality of locations along the water channel, and provided at the falling water position of each step. The water turbine device has a structure in which a water wheel is provided on the shaft member, and rotatably supports the shaft member of each water wheel device, and includes a plurality of gears provided on each shaft member of the plurality of water wheel devices provided at each step of the water channel. It is connected by a rotation transmission means such as a chain, and is connected to a gear provided on the rotating shaft of the generator via an accelerator.

  The hydroelectric generator according to claim 3 of the present invention is characterized in that, in claim 1 or 2, the water channel constructed to divert the river is formed along the side of the river.

  Furthermore, the hydroelectric generator according to claim 4 of the present invention is characterized in that, in claim 1 or 2, the water channel constructed so as to divert the river is formed along the upper part in the river.

  As described above, the hydraulic power generator according to claim 1 of the present invention has a plurality of water turbines at the position where the flowing water falls from the water outlet of the water channel at the step provided in the middle of the water channel having the height difference, that is, the flowing water falling position. It is set as the structure which installed the watermill apparatus arranged in parallel in the coaxial state. The shaft member of the water turbine apparatus has a rotation transmission speed increased in accordance with the gear ratio of the accelerator because rotation transmission means such as a chain is connected to the generator via an accelerator (also called a speed increaser). Thus, it is possible to obtain electric power with high efficiency by rotating the generator.

  Therefore, as described above, this hydraulic power generation apparatus has a configuration in which a plurality of water turbines are arranged in parallel on the shaft member, and thus is suitable for a relatively wide water channel. By increasing the rotation by the water wheel according to the gear ratio of the accelerator, it is possible to efficiently convert the hydraulic energy of the flowing water generated by the diversion of the river into electric power energy. For this reason, running costs can be reduced by using the natural power of water resources that are abundant in Japan, without requiring expensive resources like thermal power generation and nuclear power generation.

  In addition, as described above, the hydroelectric generator according to the second aspect of the present invention is provided with the steps provided in the water channel at a plurality of locations along the water channel, and provided with the water turbine device at the flowing water falling position of each step, Are connected to the generator via an accelerator, and the generator is rotated at a rotational speed increased according to the gear ratio of the accelerator to obtain electric power. It becomes possible.

  Therefore, such a hydroelectric generator is suitable for a relatively narrow water channel provided on an inclined land with many steps, and increases the rotation speed of a plurality of water turbines along the water channel according to the gear ratio of the accelerator. This makes it possible to efficiently convert hydraulic energy into electric power energy. For this reason, even in this hydroelectric power generation device, running costs can be reduced by using the natural power of abundant water resources in Japan without requiring expensive resources like thermal power generation and nuclear power generation. It becomes possible to do.

  In addition, in the hydroelectric generator according to claim 1 or claim 2, the water channel constructed so as to divert the river can be formed along the side of the river. In this case, a space for constructing a water channel is necessary on the side of the river in terms of topography, but it is possible to construct a water channel without being affected by the river situation.

  Further, in the hydroelectric generator according to claim 1 or 2, the water channel constructed so as to divert the river can be formed along an upper portion in the river. In this case, since the waterway is constructed in the river itself, the space for constructing the waterway on the side of the river is unnecessary, and the running water flowing down from the waterway outlet to the water turbine device can flow directly into the river, Accordingly, it is possible to construct a water channel at a low cost.

It is a top view which shows the condition which installed the hydraulic power unit which concerns on Example 1 of this invention in the water channel. It is a partial expanded plan view which shows the condition which installed the hydraulic power unit which concerns on Example 1 of this invention in the water channel. It is a front view of the hydroelectric generator concerning Example 1 of the present invention. It is a side view which shows the condition which installed the hydraulic power unit which concerns on Example 1 of this invention in the water channel. It is a top view which shows the condition which installed the hydraulic power unit which concerns on the other Example of Example 1 of this invention in the water channel. It is a side view which shows the condition which installed the hydraulic power unit which concerns on the other Example of Example 1 of this invention in the water channel. It is a top view which shows the condition which installed the hydraulic power unit which concerns on Example 2 of this invention in the water channel. It is a partial enlarged plan view which shows the condition which installed the hydraulic power unit which concerns on Example 2 of this invention in the water channel. It is a front view of the hydroelectric generator which concerns on Example 2 of this invention. It is a side view which shows the condition which installed the hydraulic power unit which concerns on Example 2 of this invention in the water channel. It is a top view which shows the condition which installed the hydraulic power unit which concerns on the other Example of Example 2 of this invention in the water channel. It is a side view which shows the condition which installed the hydraulic power unit which concerns on the other Example of Example 2 of this invention in the water channel. It is a top view which shows the condition which installed the hydraulic power unit which concerns on Example 3 of this invention in the lower part of a waterfall.

  Embodiments of the present invention will be described below with reference to the drawings.

  As shown in FIG. 1, the hydroelectric generator 1A of the present embodiment is applied to a water channel 3A constructed so as to divert a river 2 flowing through a terrain having a height difference such as a mountainous region. Is suitable for the water channel 3A formed relatively widely.

  Further, as shown in FIG. 3, such a water channel 3A is formed into a continuous groove shape having a concave cross section by metal or reinforced concrete depending on the scale, and as shown in FIG. By forming the guide portion 4 that guides from the wide width to the narrow width of the water channel 3A at the boundary portion that divides into 3A, the flowing water F from the river 2 is smoothly guided to the water channel 3A.

  In addition, in order to restrict the amount of water flowing through the water channel 3A when the amount of water increases, such as a large amount of precipitation or flooding, and to adjust the water amount to a constant level, as shown in FIGS. A scraping member 5 for scraping off the increased moisture is fixed. The scraping member 5 is a member in which a rod-like or plate-like long member formed of concrete or the like is hung on both ends of the water channel 3A in an inclined manner and fixed.

  In addition, the water channel 3A is provided with a downward slope using the difference in height of the terrain, and a step 6 using the terrain or a step 6 made using the terrain is provided in the middle of the water channel 3A. Yes. In such a water channel 3 </ b> A, the water channel 3 </ b> A is temporarily interrupted above the level difference 6, and the interrupted portion functions as the water outlet 7. An apparatus 8A is installed.

  Further, a water receiving chamber 22 having a width wider than that of the water channel 3A is formed below the water flow port 7 of the water channel 3A in order to receive the water F flowing down from the water flow port 7. The water flow in the water receiving chamber 22 is shown in FIG. As shown in FIG. 3, the water is returned from the water receiving chamber 22 to the original river 2 through the downstream water channel 3A.

  Further, as shown in FIGS. 1, 2, 3, and 4, the water turbine device 8 </ b> A according to the present embodiment has a plurality of water turbines 9 a, 9 b, and 9 c arranged in parallel on the shaft member 10 and rotates the shaft member 10. It is supported freely.

  That is, as shown in FIG. 3, one water wheel 9 a has a structure in which a plurality of blade plates 11 (see FIG. 4) are fixed via a cylindrical shaft body portion 12 provided on the outer periphery of the shaft member 10. Are formed on the outer periphery of the shaft body portion 12 of the shaft member 10 to constitute the water turbine device 8A. In the present embodiment, the water turbine device 8A has a configuration in which three water turbines 9a, 9b, 9c are arranged side by side, but it is not necessarily limited to three, and the width of each water turbine 9a, 9b,. Or the width of the water channel 3A can be set.

  In addition, as shown in FIG. 4, each vane plate 11 provided in each of the water turbines 9a, 9b, 9c is formed in a shape in which a midway portion is bent at an obtuse angle toward the rotation direction, and the water outlet of the water channel 3A. It is possible to reliably catch the flowing water from 7. However, the vane plate 11 can be formed in a straight shape without forming a bent portion. Further, as shown in FIG. 3 or FIG. 4, the water turbine device 8 </ b> A has the lateral plates 11 a and 11 b fixed on both sides of each vane plate 11, so that the running water F flowing down from the water flow port 7 of the water channel 3 </ b> A The water turbine device 8A can be efficiently rotated by being surely applied to the blades 11 without leaking.

  As shown in FIG. 3, the water turbine device 8 </ b> A is rotatably fixed to the water turbine support bases 13 and 13 through bearings (not shown) provided near both ends of the shaft member 10. Further, the present embodiment is suitable for the water channel 3A having a relatively wide water channel width. Therefore, since the length of the shaft member 10 of the water turbine device 8A becomes longer as the water channel width becomes wider, in order to reinforce the rigidity of the shaft member 10, the space between the water turbines 9a, 9b, 9c in the middle of the shaft member 10 is increased. The intermediate support member 14 is erected.

  Further, as shown in FIG. 2, a rotation transmission means such as a chain 17 is coupled to a gear 16 provided on the shaft member 10 at the end of the shaft member 10 of the water turbine device 8 </ b> A, and power is generated via the acceleration gear device 21. It is connected to a gear 19 provided on the rotary shaft 18a of the machine 18.

  In such a configuration, the acceleration gear device 21 supports each of the gears 21a and 21b having different gear diameters by the gear support base 15 and the gear 16 provided on the shaft member 10 of the water turbine device 8A via the chain 17. It connects with one gear 21a. Further, by connecting to the gear 19 of the generator 18 through the chain 17 connected to the other gear 21b, the rotation of the water turbine device 8A is transmitted to the generator 18 in an accelerated state so as to be converted into electric power. I have to.

  The generator 18 may be provided in the casing 20 for waterproofing. Furthermore, as shown in FIG. 4, it is desirable to provide the generator 18 as high as possible so that it will not be submerged even during heavy rainfall or flooding. For this reason, it is provided at a high position away from the installation position of the hydroelectric generator 1A, or although not shown, the generator 18 may be fixed to the upper part of the high gantry.

  As described above, the hydroelectric generator 1A of the present embodiment is suitable for the relatively wide water channel 3A, and the water turbine device 8A is connected to the shaft member 10 with a plurality of water turbines 9a, 9b. The structure is set up side by side. Moreover, the flowing water generated by the diversion of the river 2 by converting the rotational force of the plurality of water turbines 9a, 9b,... Into the rotational speed increased according to the gear ratio of the gears 21a, 21b in the acceleration gear device 21. The hydraulic energy of F can be efficiently converted into electric energy.

  In the above embodiment, the water channel 3 </ b> A is formed along the side of the river 2. In this case, a space for constructing the water channel 3 </ b> A on the side of the river 2 is necessary topographically, but the water channel 3 </ b> A can be constructed without being affected by the situation of the river 2.

  Further, as another embodiment of the first embodiment, the water channel 3 </ b> A can be formed along the upper portion in the river 2. That is, as shown in FIG. 5 or FIG. 6, the leg member 23 is constructed at the bottom of the river 2 to construct the water channel 3 </ b> A with a downward slope, and the location where the water channel 3 </ b> A is interrupted is referred to as the water flow port 7. A water turbine device 8 </ b> A is installed at a flowing water falling position below 7.

  As shown in FIG. 6, the upstream side of the water channel 3 </ b> A is preferably constructed so that a gap G having a height of about 50 cm is formed between the lower portion and the bottom surface of the river 2. By doing so, since rocks and the like moving in the river 2 pass through the gap G, the rocks and the like do not pass through the water channel 3A, and it is possible to prevent damage to the water turbine device 8A. It is also possible for fish and the like to pass through the gap G below the water channel 3A.

  As shown in FIG. 5, in the water turbine device 8A of the present embodiment, a plurality of water turbines 9a, 9b, and 9c are arranged on the shaft member 10 in a coaxial state, and the shaft member 10 is not illustrated, as in the first embodiment. These are fixed to the water turbine support bases 13 and 13 through bearings. In the present embodiment, as shown in FIG. 5 or 6, each blade plate 11 is formed in a straight shape, and by fixing the horizontal plates 11 a and 11 b on both sides of each blade plate 11, The water turbine device 8A can be efficiently rotated by reliably applying the running water F flowing down from the water flow port 7 of the water channel 3A to the blades 11 without leaking outward.

  Further, a rotation transmission means such as a chain 17 is coupled to the gear 16 provided on the shaft member 10 at the end of the shaft member 10 of the water turbine device 8 </ b> A, and is connected to one gear 21 a of the acceleration gear device 21. Further, by connecting the chain 17 connected to the gear 21b having a gear diameter different from that of the one gear 21a to the gear 19 of the generator 18, the rotation of the water turbine device 8A is increased in accordance with the gear ratio of the gears 21a and 21b. In this state, it can be transmitted to the generator 18 and converted into electric power.

  In the case of such an embodiment, since the water channel 3A is constructed in the river itself, a space for constructing the water channel 3A on the side of the river 2 is not required, and the water flows down from the water inlet 7 of the water channel 3A to the water turbine device 8A. The flowing water F can be returned to the river 2 as it is, and accordingly, the water channel 8A can be constructed at low cost.

  Similar to the first embodiment, the hydroelectric generator 1B according to the present embodiment has a water channel 3B constructed so as to divert a river 2 flowing through a terrain having a height difference such as a mountainous area as shown in FIG. It is suitable for relatively narrow water channels provided on slopes with many steps.

  In addition, like the first embodiment, such a water channel 3B is formed into a continuous groove shape having a concave cross section by metal or reinforced concrete depending on the scale, and at the boundary portion where the water is diverted from the river 2 to the water channel 3B, By forming the guide portion 4 that guides from the wide width to the narrow width of the water channel 3B, the flowing water F from the river 2 is smoothly guided to the water channel 3B.

  Also in this embodiment, in order to restrict the water flow flowing through the water channel 3B when the amount of water increases, such as a large amount of rainfall or flooding, and adjust the water flow to a constant amount, as shown in FIGS. A scraping member 5 that scrapes off the increased moisture is fixed to the top of 3B. As in Example 1, the scraping member 5 is a member in which a rod-like or plate-like long member made of concrete or the like is hung on both ends of the water channel 3B in an inclined manner and fixed.

  Further, as shown in FIG. 10, the water channel 3B of the present embodiment is provided with a downward slope using the difference in height of the topography, and a plurality of steps 6 using the topography or topography is used in the middle of the water channel 3B. Thus, a plurality of steps 6 are provided. In such a water channel 3 </ b> B, the water channel 3 </ b> B is temporarily interrupted above each level difference 6, and the interrupted portion functions as a water flow port 7. Each of the water channels 3 </ b> B below each of the plurality of water flow ports 7. A water turbine device 8B is installed at the flowing water falling position.

  Also in this embodiment, as shown in FIG. 7, a water receiving chamber 22 wider than the water channel 3 </ b> B is formed below the water flow port 7 of the water channel 3 </ b> B in order to receive the water F flowing down from the water flow port 7. The flowing water in the water receiving chamber 22 is returned to the original river 2 from the water receiving chamber 22 through the water channel 3B.

  Furthermore, as shown in FIGS. 7 to 10, the water turbine device 8B of the present embodiment is provided with steps 6 provided in the water channel 3B at a plurality of locations along the water channel 3B, and the running water below the water outlet 7 of each step 6 A water turbine device 8B is provided at the dropping position, and each water turbine device 8B is connected by a rotation transmission means such as a chain 17 or the like.

  That is, in this embodiment, as shown in FIG. 10, a water turbine device 8B is provided below the flow-down port 7 of the water channel 3B for each of the plurality of steps 6 provided in the water channel 3B, and as shown in FIG. Each watermill device 8B has a configuration formed by a single waterwheel 9a. As shown in FIG. 10, the water wheel 9 a has a structure in which a plurality of blade plates 11 are fixed via a cylindrical shaft body portion 12 provided on the outer periphery of the shaft member 10.

  Also in this embodiment, as shown in FIG. 10, each vane plate 11 is formed in a shape in which a midway portion is bent at an obtuse angle toward the rotation direction, and flows down from the water flow port 7 of the water channel 3B. It is possible to reliably catch running water. Moreover, as shown in FIG. 9 or FIG. 10, the water turbine device 8B is configured to fix the lateral plates 11a and 11b on both sides of each vane plate 11, thereby allowing the flowing water F flowing down from the water flow port 7 of the water channel 3B to the outside. It is possible to efficiently rotate the water turbine device 8B by reliably hitting the blades 11 without leaking.

  As shown in FIG. 8 or FIG. 9, each of such water turbine devices 8 </ b> B is rotatably fixed to the water turbine support 13 through bearings (not shown) provided near both ends of each shaft member 10. . In the present embodiment, as described above, the water turbine device 8B is provided for each of the plurality of steps 6 along the water channel 3B. For example, the gear 16 provided on the shaft member 10 of the downstream water turbine device 8B is provided. One of the acceleration gear devices 21 provided on the shaft member 10 of the water turbine device 8B provided at the step 6 upstream of the gear 16 is coupled with rotation transmission means such as a chain 17 while being supported by the gear support 15a. The gear 21a is connected.

  Further, the other gear 21b provided coaxially in the acceleration gear device 21 has a configuration in which the gear diameters are different from each other, and each gear 21a, 21b is configured to be supported by a gear support base 15b. The other gear 21b of the acceleration gear device 21 is coupled to the gear 19 of the rotary shaft 18a supported by the gear support 15c provided further upstream, and the rotary shaft 18a is connected to the rotary shaft of the generator 18. It is configured as.

  In such a configuration, also in the present embodiment, the generator 18 is provided in the casing 20 for waterproofing. In addition, as shown in FIG. 10, it is desirable that the generator 18 be provided as high as possible so as not to be submerged even during heavy rainfall or flooding. For this reason, it is provided at a high position away from the installation position of the hydroelectric generator 1B, or although not shown, the generator 18 may be fixed to the upper part of the high gantry.

  Further, as described above, the hydroelectric generator 1B according to the present embodiment is suitable for the relatively narrow water channel 3B, and a water turbine is provided below each flow outlet 7 for each of the plurality of steps 6 provided in the water channel 3B. By providing the device 8B, the gear 16 of the shaft member 10 of each water turbine device 8B is connected by the rotation transmission means such as the chain 17 and the like, and connected to the generator 18 via the acceleration gear device 21, thereby accelerating gears. It is possible to obtain an electric power by rotating the generator 18 by obtaining an increase in rotational speed according to the gear ratio of the device 21.

  Therefore, such a hydroelectric generator 1B is applied to a relatively narrow water channel 3B provided on an inclined land where many steps 6 exist, and the rotational force of the plurality of water turbine devices 8B along the water channel 3B is used as a gear in the acceleration gear device 21. By converting into the rotational speed increased according to the gear ratio of 21a, 21b, it becomes possible to convert hydraulic energy into electric power energy and to obtain electric power efficiently.

  In the above embodiment, the water channel 3 </ b> B is formed along the side of the river 2. Therefore, also in this embodiment, as another embodiment, the water channel 3B can be formed along the upper portion in the river 2. That is, as shown in FIG. 11 or FIG. 12, a leg member 23 is constructed at the bottom of the river 2 to construct a plurality of water channels 3B with a downward slope, and the location where the water channel 3B is interrupted is defined as a water flow inlet 7. A water turbine device 8B is installed at a flowing water dropping position below the flowing water port 7.

  In this embodiment, the upstream side of the water channel 3B is constructed such that the water surface W of the river 2 is higher than the water channel 3B, and the height of 50 cm is provided between the lower part of the water channel 3B and the bottom surface of the river 2. It is preferable to construct so that a gap G of a degree can be formed. By doing so, the rocks or the like moving through the bottom of the river 2 pass through the gap G, and the rocks or the like do not pass through the water channel 3B, so that it is possible to prevent damage to the water turbine device 8B. In addition, fish and the like can pass through the gap G below the water channel 3B.

  In addition, as shown in FIG. 11 or FIG. 12, the water turbine device 8B is provided with a water turbine device 8B below each downflow port 7 for each of the plurality of steps 6 provided in the water channel 3B, and each blade plate 11 is formed in a straight shape. In addition, by fixing the horizontal plates 11a and 11b on both sides of each vane plate 11, the running water F flowing down from the water flow port 7 of the water channel 3B is reliably applied to each vane plate 11 without leaking outward. Thus, the water turbine device 8B can be efficiently rotated. Further, the gear 16 of the shaft member 10 of each water turbine device 8B is connected by the rotation transmission means such as the chain 17 and is connected to the generator 18 via the acceleration gear device 21 as in the above embodiment. The generator 18 can be efficiently rotated to obtain electric power in a state where the rotational speed is increased in accordance with the gear ratio of the gears 21a and 21b of the acceleration gear device 21.

  In the case of such an embodiment, since the water channel 3B is constructed in the river 2 itself, a space for constructing the water channel 3B on the side of the river 2 is not necessary, and further, from the water inlet 7 of the water channel 3B to the water turbine device 8B. The flowing water F that has flowed down can be returned to the river 2 as it is, and accordingly, the water channel 3B can be constructed at low cost.

  As shown in FIG. 13, the hydroelectric generator 1 </ b> C according to the present embodiment uses a natural waterfall 24 as a water channel, and a watermill device 8 </ b> C according to the present invention is installed at a flowing water falling position of a step 6 generated by the waterfall 24. is there. In this case, as the water turbine device 8C, it is possible to use a structure in which a plurality of water turbines 9a, 9b, 9c are coaxially arranged as in the first embodiment.

  In the above configuration, the vane plate 11 of the water turbine device 8C is reduced in size to be short, and the water wheel device 8C is installed inside a hollow portion 25 formed on the lower side of the waterfall 24 so that the water turbine device 8C is installed. 8C is made inconspicuous so as not to damage the natural scenery. Further, by fixing the horizontal plates 11a and 11b on both sides of each blade 11, the water turbine F 8C can be reliably applied to each blade 11 without leaking the running water F flowing down from the waterfall 24 to the outside. Can be efficiently rotated. In addition, this watermill apparatus 8C can also be made into the external appearance suitable for the scenery of the waterfall 24 by producing in an antique shape with wooden etc.

  Moreover, as shown in FIG. 13, by providing the watermill device 8C in the recess 25 of the waterfall 24 as described above, the water F of the waterfall 24 is on the side beyond the rotating shaft 10 of the blade plate 11 of the waterwheel device 8C ( It is made to contact the blade 11 on the left side of the rotating shaft 10 in FIG. With such a configuration, the hit when the running water F of the waterfall 24 presses the blades 11 of the water turbine device 8C becomes soft. Moreover, since rocks etc. are mixed in the flowing water F of the waterfall 24, even if this rock hits the blades 11, it does not hit the main body of the watermill device 8C, so that the water turbine device 8C can be protected. It becomes possible.

  Also in this embodiment, a rotation transmission means such as a chain 17 is coupled to the gear 16 provided on the shaft member 10 at the end of the shaft member 10 of the water turbine device 8C. Further, the acceleration gear device 21 is configured such that each of the gears 21a and 21b having different gear diameters is supported by the gear support base 15b, and one of the gears via the chain 17 that is hung on the gear 16 of the water turbine device 8C as described above. It connects with the gear 19 of the generator 18 via the chain 17 connected with 21a and the other gear 21b. With such a configuration, it is possible to transmit the rotation increased in accordance with the gear ratio of the gears 21a and 21b of the acceleration gear device 21 to the generator 18 and convert it into electric power.

  With such a configuration, even when a natural waterfall or the like is used as a water channel, the rotational force of the water wheels 9a, 9b,... Is increased according to the gear ratio of the gears 21a, 21b in the acceleration gear device 21. It is possible to efficiently convert the hydraulic energy of the flowing water generated by the diversion of the river 2 into electric power energy.

  Further, in the case of the present embodiment, it is not necessary to construct a water channel by using a step such as a waterfall existing in nature as the step 6 of the water channel 3C of the present invention, which contributes to a reduction in construction costs. It becomes possible to do.

  The hydroelectric power generation apparatus of the present invention is a hydroelectric power plant that efficiently obtains electric power while using a stream of a river that flows in a terrain having a difference in elevation, such as a river that flows in a mountainous area, while being a small-scale facility. It can be used as a power generator.

1A, 1B, 1C Hydroelectric power generator 2 Rivers 3A, 3B, 3C Water channel 4 Guide part 5 Scraping member 6 Step 7 Flow outlets 8A, 8B, 8C Water wheel devices 9a, 9b, 9c Water wheel 10 Shaft member 11 Blade plate 11a, 11b Horizontal plate 12 Shaft body 13 Turbine wheel support base 14 Intermediate support member 15 (15a, 15b, 15c) Gear support base 16 Gear 17 Chain 18 Generator 18a Rotating shaft 19 Gear 20 Casing 21 Acceleration gear devices 21a, 21b Different gear diameters Gear 22 Receiving chamber 23 Leg member 24 Waterfall F Running water G Gap W River surface

Claims (4)

A water channel constructed so as to divide a river flowing through a terrain having a height difference is provided, the water channel is provided with a downward slope using the height difference of the terrain, and a step is provided in the middle of the water channel, and the flowing water falling position of the step In the hydroelectric power generation equipment installed with the water turbine device in
The water turbine device includes a plurality of water turbines arranged coaxially on the shaft member, rotatably supports the shaft member of the water wheel device, and connects a rotation transmission means such as a chain to a gear provided on the shaft member for acceleration. A hydroelectric power generation apparatus connected to a gear provided on a rotating shaft of a generator via a machine. A water channel constructed so as to divide a river flowing through a terrain having a height difference is provided, the water channel is provided with a downward slope using the height difference of the terrain, and a step is provided in the middle of the water channel, and the flowing water falling position of the step In the hydroelectric power generation equipment installed with the water turbine device in
Steps provided in the water channel are provided at a plurality of locations along the water channel, and the water turbine device provided at the flowing water falling position of each step has a structure in which a water wheel is provided on the shaft member, and the shaft member of each water wheel device is rotatably supported. In addition, a plurality of gears provided on each shaft member of a plurality of water turbine devices provided at each step in the water channel are connected by a rotation transmission means such as a chain, and the gear provided on the rotation shaft of the generator via an accelerator. A hydroelectric generator characterized by being connected. The hydroelectric power generator according to claim 1 or 2, wherein the water channel constructed so as to divert the river is formed along a side of the river. The hydroelectric power generation device according to claim 1 or 2, wherein the water channel constructed so as to divert the river is formed along an upper part in the river.