Self-floating hydroelectric power generation device

Abstract

To provide a hydraulic power generation device which is not submerged by a rise of a water surface in a river, service water or the like, does not require installation work, and increases generated power by increasing the number of water turbine wheel blades.SOLUTION: The self-floating hydroelectric power generation apparatus 14 includes a water wheel 3 provided with a water wheel buoyant body 1 and a sprocket 2, at least two water wheels 3 being arranged, a water wheel blade row 9 in which water wheel blades 7 provided with sprocket holes 5 engaging with the sprocket 2 and having plates 6 receiving a water flow are connected by water wheel connection hinges 8 to connect an outer periphery of the water wheel 3 in an elliptical shape, a water wheel sprocket 10 transmitting rotation of the water wheel 3, an acceleration mechanism 11 accelerating the rotation, a power generator 12, and an auxiliary buoyant body 13 appropriately maintaining a draft position. The water wheel 3 floats according to a water surface position, the water wheel blade 7 receives a water flow, the water wheel blade row 9 drives the water wheel 3, and power can be generated by a generator via a speed increasing mechanism. Installation work is not required, and generated power can be made larger than other systems of the same size.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a hydroelectric power generation device that generates electricity by utilizing the energy of tidal currents and river currents, in which the device floats to the water surface, the water current causes the water turbine blades to rotate the water turbine, and the rotational torque is transmitted to a generator to generate electricity. [Background technology]

[0002] 2. Description of the Related Art Various hydroelectric power generating devices have been proposed for generating electricity by utilizing the energy of tidal currents and river currents.

[0003] FIG. 9 is a schematic overall view of a conventional hydroelectric power generating device. First, a fixed frame 101 is installed in a river or irrigation channel. Rotating rollers 102 and 103 are attached to both ends of the bottom of the fixed frame. Rotating roller 104 is fixed to the upper end of the vertical fixed support in the middle, and roller 104 is set at a height that always projects above the water surface.

[0004] A plurality of receiving plates 106 are fixed to the surface of the belt conveyor 105 and are installed so that they can rotate around the rotating rollers 102, 103, and 104. When the conveyor rotates, the receiving plates 106 attached to the surface are successively unfolded by the water flow as they pass over the rollers 102 (the opening angle relative to the belt conveyor 105 should not exceed 90 degrees).

[0005] The force of the water receiving plate rotates the entire belt conveyor 105, and the three rollers also rotate simultaneously. A coaxial gear 107 is installed on the rotating roller 104 and connected to a generator to generate electricity.

[0006] [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Patent Publication No. 2021-195947 Summary of the Invention [Problem to be solved by the invention]

[0008] In the hydroelectric power generation device of Patent Document 1, a fixed frame 101 is installed in a river or irrigation canal, and a rotating roller 104 is fixed to the upper end of a vertical fixed support in the middle, and the roller 104 is set at a height that always remains above the water surface. Because it is installed at the bottom of a river or irrigation canal, the water level may rise above the rotating roller 104. The water level may also rise above the rotating roller 104 due to sudden flooding or typhoons. This imposes restrictions on installation.

[0009] A number of receiving plates 106 are fixed to the surface of the belt conveyor 105 and are installed so as to surround the rotating rollers 102, 103, and 104 and allow them to rotate, but the three rotating rollers 101, 102, and 104 and the belt conveyor slip in the water and spin freely, making it difficult to rotate them.

[0010] A number of receiving plates 106 are fixed to the surface of the belt conveyor 105, and the receiving plates 106 are supposed to unfold sequentially due to the water flow as they pass under the rollers 102, but there are cases where the receiving plates 106 do not unfold. If they do unfold, the force that the receiving plates 106 receive from the water flow acts on the belt, causing it to deform and preventing a smooth tea ceremony.

[0011] The belt conveyor 105 is affected by the gravity of the support plate 106 attached to the surface, and sags between the rotating rollers 102, 103, and 104, making it difficult for the belt conveyor 105 to rotate.

[0012] [Means for solving the problem]

[0013] In order to solve the above problem, the self-supporting floating hydroelectric power generation device described in claim 1 of the present invention comprises a water turbine with a water turbine buoyancy body inside and sprockets on both side plates, with at least two of them installed, a main frame of the device on which the water turbine is installed, water turbine blades with sprocket holes that rotate and engage with the sprocket of the water turbine and have plates that receive the water flow at a predetermined angle, blade connection hinges that connect multiple water turbine blades and bend to fit the water turbine, a water turbine blade row that connects the outer peripheries of the multiple water turbines in an oval shape by connecting these multiple water turbine hinges and multiple water turbine blades, a water turbine sprocket installed on the water turbine and transmits the rotation of the water turbine, a speed-up mechanism installed on the main frame of the device and speeds up the rotation of the water turbine sprocket, a generator installed on the main frame of the device and rotates using the speed-up mechanism to generate electricity, and an auxiliary buoyancy body that keeps the floated draft position of the water turbine appropriate.

[0014] According to the above invention, the device floats independently using the combined buoyancy of the turbine buoyancy body and the auxiliary buoyancy body. When the turbine blades are subjected to a water current, the sprocket holes in the turbine blades engage with the sprockets on both side plates of the turbine, causing the turbine to rotate. The turbine blades in the turbine blade row rotate sequentially, causing the turbine to rotate continuously. As the turbine rotates, the turbine sprocket also rotates, and is connected to a chain to transmit the rotation to the speed-up mechanism. The speed-up mechanism increases the rotation speed and transmits it to the generator, which generates electricity.

[0015] An autonomous floating hydroelectric power generation device floats by itself due to the combined buoyancy of the turbine buoyancy body and the auxiliary buoyancy body. Therefore, no matter how high the water level of the river or irrigation water rises, the power generation unit will not be flooded. Because it floats by itself, no installation work is required in the river or irrigation water, and maintenance costs are almost zero. The rows of turbine blades rotate the turbine by meshing with sprockets on both sides of the turbine, so the turbine can rotate reliably and smoothly without spinning. A large number of turbine blades can be installed, increasing the area that receives the water flow and increasing the amount of generated power.

[0016] The self-supporting floating hydroelectric power generation device described in claim 2 is provided with a turbine blade row sagging prevention plate that prevents the turbine blade row from sagging due to gravity between the turbines and allows the turbine blade row to slide smoothly.

[0017] According to the above invention, the water turbine blade cascade sagging prevention plate supports the water turbine blade cascade and prevents it from sagging due to gravity between the two water turbines at the front and rear. Furthermore, the water turbine blade cascade sagging prevention plate slides smoothly against the water turbine blades, allowing the water turbine blade cascade to rotate smoothly.

[0018] A turbine blade row sagging prevention plate is installed between the two front and rear turbines, preventing the turbine blade row from sagging due to gravity.Furthermore, the turbine blade row sagging prevention plate slides smoothly against the turbine blades, allowing the turbine blade row to rotate smoothly.

[0019] The self-supporting floating hydroelectric power generation apparatus according to claim 3 is such that an additional water turbine is provided between the front and rear water turbines if possible.

[0020] According to the above invention, by providing an additional water turbine between the front and rear water turbines, it is possible to prevent the water turbine blade rows from sagging. Furthermore, it is possible to prevent the water turbine blade rows from shifting, allowing the water turbine to rotate smoothly.

[0021] The self-supporting floating hydroelectric power generation device described in claim 4 is configured so that the angle formed by the center of the holes that engage with the sprockets on both sides of the turbine and the center of the hinge that fixes the turbine is half the angle of the sprocket arrangement of the turbine.

[0022] According to the above invention, the center of the turbine connecting hinge that connects one turbine blade to the next is located midway between the sprockets on both sides of the turbine and the adjacent sprocket, i.e., at an angle θ2 that is half the sprocket arrangement angle θ1. The arrangement of the sprockets on both sides of the turbine is offset by half the angle θ2, allowing the turbine connecting hinge to bend and the turbine blade row to rotate smoothly around the turbine 3. In this way, the turbine blade row plays the role of a chain in turbine mechanics, which allows for rationalization and smooth turbine rotation.

[0023] In the self-supporting floating hydroelectric power generation device described in claim 5, the turbine blades are made of a single sheet metal, with the part that meshes with the turbine sprocket and the part that receives the water flow bent at a certain angle. A notch is provided in the part that receives the water flow to match the outer shape of the turbine connecting hinge so that it does not come into contact with the turbine connecting hinge.

[0024] According to the above invention, if the part that meshes with the water wheel sprocket and the part that receives the water flow are inclined at a certain angle, they will come into contact with the water wheel connecting hinge that connects to the adjacent water wheel blade and will not be able to connect.However, because a cutout hole is provided to match the outer shape of the water wheel connecting hinge, the water wheel connecting hinge will bend without coming into contact with the water wheel connecting hinge and the water wheel blade row can rotate smoothly around the water wheel.

[0025] The water turbine blades described in claim 6 are provided at both ends with portions that slide over and come into contact with the water turbine blade row sagging prevention plates.

[0026] According to the above invention, the water turbine blades are supported at both ends above the water turbine blade cascade sagging prevention plates to prevent sagging due to the weight of the water turbine blade cascade, and can rotate around the water turbine while sliding smoothly.

[0027] The device main body frame described in claim 7 is inclined at a certain angle relative to the auxiliary buoyancy body so that the downstream side of the water flow is downward, and the water turbine and the water turbine blade row provided on the device main body frame are also inclined at a certain angle so that the downstream side of the water flow is downward.

[0028] According to the above invention, the turbine blades around the turbine on the upstream side of the water flow are located in successively lower positions from the turbine blades on the downstream side of the water flow, so that the water flow directly hits the turbine blades, allowing the turbine blade row to rotate efficiently and smoothly around the turbine.

[0029] In the water turbine described in claim 8, the diameter of the water turbine downstream of the water flow is larger than that of the water turbine upstream of the water flow, and the water turbine blades of the water turbine blade row are also arranged so that the downstream side of the water flow is downward.

[0030] According to the above invention, the downstream turbine is positioned lower than the upstream turbine in the water flow, so that each turbine blade in the turbine blade row is directly exposed to the water flow, increasing the turbine driving force and also increasing the power generated by the generator. [Effects of the Invention]

[0031] According to this invention, the turbine buoyancy body and auxiliary buoyancy body are provided, and the combined buoyancy allows the turbine to float independently. Therefore, no matter how high the water level of the river or irrigation water rises, the turbine will remain afloat, preventing flooding of the power generation unit. Because the turbine floats independently, no installation work is required on the river or irrigation water. Maintenance costs are almost entirely for the equipment, making the overall cost low. The turbine blade rows rotate the turbine by meshing with sprockets on both sides of the turbine, ensuring reliable and smooth rotation without slipping. The turbine blade rows function as both turbine blades and mechanical chains, allowing for streamlining and smooth turbine rotation. A large number of turbine blades can be installed, increasing the area that receives the water flow and increasing the generated power.

[0032] According to the present invention, by providing a water turbine blade row sagging prevention plate, the water turbine blade row is subjected to gravity between the water turbines, preventing sagging, and furthermore, the water turbine blade row sagging prevention plate allows the water turbine blade row to slide and rotate smoothly.

[0033] According to the present invention, when the distance between the front and rear turbines is greater than the diameter of the turbine, the drooping of the turbine blade rows becomes significant, but by providing an additional turbine between the front and rear turbines, the drooping of the turbine blade rows can be prevented. Furthermore, misalignment of the turbine blade rows can be prevented, allowing the turbine to rotate smoothly.

[0034] According to the present invention, the center of the hinge connecting the blades of one turbine to the blades of the next turbine is located midway between the sprockets on both sides of the turbine and the adjacent sprocket, i.e., at a position half the sprocket arrangement angle, so the hinge bends with an offset of half the arrangement angle, allowing the blade row to rotate smoothly around the turbine.

[0035] According to this invention, the turbine blades are made from a single sheet of metal, with the portion that meshes with the turbine sprocket and the portion that receives the water flow bent at a certain angle. A cutout hole is provided to match the outer shape of the turbine connection hinge so that the bent portion does not come into contact with the turbine connection hinge. This allows the turbine blade row to rotate smoothly around the turbine as the turbine connection hinge bends without coming into contact with the turbine connection hinge. This structure is simple, can be produced industrially, and can be achieved at a low cost.

[0036] According to the present invention, the water turbine blades are provided with portions at both ends that slide and come into contact with the water turbine blade cascade sagging prevention plates, so that the water turbine blades are supported at both ends above the water turbine blade cascade sagging prevention plates to prevent sagging due to the weight of the water turbine blade cascade, and can rotate around the water turbine while sliding smoothly.

[0037] According to the present invention, the device main body frame is inclined at a certain angle relative to the auxiliary buoyancy body so that the downstream side of the water flow is downward, and the water turbine and the water turbine blade row mounted on the device main body frame are also inclined at a certain angle so that the downstream side of the water flow is downward.As a result, the water turbine blades around the water turbine on the upstream side of the flow are located in succession, descending from the blades on the upstream side of the water flow, so that the water flow hits the water turbine blades directly, allowing the water turbine blade row to rotate efficiently and smoothly around the water turbine. This structure is simple, can be produced industrially, and can be realized at low cost.

[0038] According to the present invention, the diameter of the turbine downstream of the water flow is larger than that of the turbine upstream of the water flow, and the turbine blades in the turbine blade row are also arranged so that the downstream side of the water flow is downward.As a result, each turbine blade in the turbine blade row is directly exposed to the water flow, increasing the turbine driving force and also increasing the power generated by the generator. [Brief explanation of the drawings]

[0039] [Figure 1] 1 is a schematic overall view of an independent floating hydroelectric power generation device according to this embodiment; [Figure 2] Schematic diagram of a water turbine blade row sagging prevention plate of the self-supporting floating hydroelectric power generation device according to this embodiment. [Figure 3]Schematic overall view of the self-supporting floating hydroelectric power generation device according to the present embodiment, with a water turbine added. [Figure 4] Schematic diagram of the turbine blades and hinges of the self-supporting floating hydroelectric power generation device according to this embodiment. [Figure 5] Schematic diagram of a turbine blade of the self-supporting floating hydroelectric power generation device according to the present embodiment. [Figure 6] Schematic diagram of the end of the turbine blade of the self-supporting floating hydroelectric power generation device according to the present embodiment. [Figure 7] A schematic overall view of the self-standing floating hydroelectric power generation device according to this embodiment with the main body frame tilted. [Figure 8] Schematic overall view of the self-supporting floating hydroelectric power generation device according to the present embodiment with different diameters of the water turbine [Figure 9] Schematic overall view of a conventional hydroelectric power generation system DETAILED DESCRIPTION OF THE INVENTION

[0040] The following describes embodiments of the present invention with reference to the drawings. The following embodiments do not limit the inventions according to the claims, and not all of the combinations of features described in the embodiments are necessarily essential to the solution of the invention.

[0041] In Figure 1, there is a water turbine 3 with a water turbine buoyancy body 1 inside, sprockets 2 on both side plates, and at least two water turbines 3, a device body frame 4 on which the water turbines 3 are mounted, a water turbine blade 7 with a plate 6 that receives the water flow at a predetermined angle and has sprocket holes 5 that rotate and engage with the sprockets 2 of the previous water turbine 3, and a blade hinge 8 that connects multiple water turbine blades 7 and bends to match the previous water turbine 3, and multiple water turbine connecting hinges 8 and multiple water turbine blades 7 are connected. The self-supporting floating hydroelectric power generation device 14 is made up of a water turbine blade row 9 that connects the outer peripheries of the multiple water turbines 3 in an oval shape, a water turbine sprocket 10 that is attached to the water turbines 3 and transmits the rotation of the water turbines 3, a speed-up mechanism 11 that is attached to the main frame 4 of the device and increases the rotation speed of the water turbine sprocket 10, a generator 12 that is attached to the main frame 4 of the device and rotates using the speed-up mechanism 11 to generate electricity, and an auxiliary buoyancy body 13 that maintains the floated draft position of the water turbines 3 at an appropriate level.

[0042] The self-supporting floating hydroelectric power generation device 14 floats by itself due to the combined buoyancy of the turbine buoyancy body 1 and auxiliary buoyancy body 13. When the turbine blades 7 are subjected to a water current, the sprocket holes 5 of the turbine blades 7 engage with the sprockets 2 provided on both side plates of the turbine, causing the turbine 3 to rotate. The turbine blades 7 of the turbine blade row 9 rotate sequentially, causing the turbine 3 to rotate continuously. As the turbine 3 rotates, the turbine sprocket 10 also rotates, and is connected to a chain 15 to transmit the rotation to a speed-up mechanism 11. The speed-up mechanism 11 increases the rotation speed and transmits it to a generator 12, which generates electricity.

[0043] The self-supporting floating hydroelectric power generation device 14 floats by itself due to the combined buoyancy of the turbine buoyancy body 1 and the auxiliary buoyancy body 13. Therefore, no matter how much the water level of the river or irrigation water rises, it remains afloat, and the generator 12 will not be submerged. Because it floats independently, no installation work is required on the river or irrigation water, and maintenance costs are almost zero. The turbine blade rows 9 mesh with the sprockets 2 on both sides of the turbine 3 to rotate the turbine 3, so the turbine can rotate reliably and smoothly without spinning. A large number of turbine blades 7 can be installed, increasing the area that receives the water flow and increasing the generated power.

[0044] In Figure 2, turbine blade row sagging prevention plates 16 are provided to prevent the turbine blade row 9 from sagging due to gravity between the turbines 3 and to allow the turbine blade row 9 to slide smoothly. Two turbine blade row sagging prevention plates are installed: turbine blade row sagging prevention plate 16a grounded at the top and turbine blade row sagging prevention plate 16b grounded at the bottom.

[0045] The water turbine blade row 9 sags due to gravity between the two water turbines 3 at the front and rear. This sagging is supported and prevented by the water turbine blade row sagging prevention plate 16. Furthermore, the water turbine blade row sagging prevention plate 16 allows the water turbine blades 7 to slide smoothly, allowing the water turbine blade row 9 to rotate the water turbine 3 smoothly.

[0046] In FIG. 3, if it is possible to provide an additional water turbine 3 at a distance La between the front and rear water turbines 3, a water turbine 3 is provided.

[0047] By providing an additional water turbine 3 at the distance La between the front and rear water turbines 3, it is possible to prevent the water turbine blade row 9 from sagging. Furthermore, it is also possible to prevent the water turbine blade row 9 from shifting, allowing the water turbine 3 to rotate smoothly.

[0048] In Figure 4, the angle θ1 formed by the center of the sprocket holes 5 that mesh with the sprockets 2 on both sides of the water turbine 3 and the center of the water turbine connecting hinge 8 that fixes the water turbine blades 7 is set to θ2, which is half the sprocket arrangement angle of the water turbine 3, with the center of rotation of the water turbine 3 as the reference point.

[0049] The center of the turbine connecting hinge 8 that connects one turbine blade 7 to the next is located midway between the sprockets 2 on both sides of the turbine 3 and the adjacent sprocket 2, that is, at an angle θ2 18 that is half the sprocket arrangement angle θ1 17. The arrangement of the sprockets 2 on both sides of the turbine 3 is offset by half the angle θ2 18, so the turbine connecting hinge 8 bends, allowing the turbine blade row 9 to rotate smoothly around the turbine 3.

[0050] In Figure 5, the turbine blade 5 is made of a single sheet metal, with the portion 19 that meshes with the sprocket 2 of the turbine 3 and the portion 20 that receives the water flow bent at a certain angle. A cutout hole 21 is provided in the portion 20 that receives the water flow to match the outer shape of the turbine connection hinge 8 so that it does not come into contact with the turbine connection hinge 8.

[0051] If the part 19 that meshes with the sprocket of the water wheel 3 and the part 20 that receives the water flow are inclined at a certain angle, they will come into contact with the water wheel connecting hinge 8 that connects to the adjacent water wheel blade 7 and will not be able to connect. However, because a cutout hole 21 is provided to match the outer shape of the water wheel connecting hinge 8, the water wheel connecting hinge 8 does not come into contact with the water wheel connecting hinge 8, and the water wheel blade row 9 can rotate smoothly around the water wheel 3 as the water wheel connecting hinge 8 bends.

[0052] In FIG. 6, the water turbine blade 7 has portions 22 at both ends that slide over and come into contact with the water turbine blade row sagging prevention plates 16 .

[0053] The water turbine blades 7 can rotate around the water turbine 3 while sliding smoothly because the sliding contact portions 22 at both ends are supported above the water turbine blade row sagging prevention plate 16 to prevent sagging due to the weight of the water turbine blade row 9.

[0054] In Figure 7, the device main frame 2 is inclined at a certain angle relative to the auxiliary buoyancy body 13 so that the downstream side of the water flow is downward, and the water turbine 3 and water turbine blade row 9 mounted on the device main frame 2 are also inclined at a certain angle θ3 23 so that the downstream side of the water flow is downward.

[0055] The water turbine blades 7 around the water turbine on the upstream side of the water flow are positioned in succession, from the water turbine blades 7 around the water turbine on the downstream side of the water flow, so that the water flow directly hits the water turbine blades 7, and the water turbine blade row 9 can efficiently and smoothly rotate around the water turbine 3.

[0056] In FIG. 8, the diameter of the downstream water turbine 3b is larger than that of the upstream water turbine 3a in the water flow, and the downstream side of the water flow of the water turbine blades 7 of the water turbine blade row 9 is also downward.

[0057] Since the downstream turbine 3b is positioned lower than the upstream turbine 3a in the water flow, each turbine blade 7 in the turbine blade row 9 is directly exposed to the water flow, increasing the turbine driving force and also increasing the power generated by the generator 12. [Industrial Applicability]

[0058] The self-supporting floating hydroelectric power generation device of the present invention can be used as a power generation device in places where commercial power sources are not available, such as by floating it on a river, agricultural water, or an ocean area with tidal currents. [Explanation of symbols]

[0059] 1 Water wheel buoyant body 2 sprockets 3 Waterwheel 3a Upstream waterwheel 3b Downstream water wheel 4. Machine body frame 5 Sprocket holes 6. Plate that receives water flow 7 Waterwheel blades 8 Waterwheel connecting hinge 9 Waterwheel blade row 10 Waterwheel sprocket 11 Speed ​​increasing mechanism 12. Generator 13 Auxiliary buoyancy body 14. Self-supporting floating hydroelectric power generation device 15 Chain 16 Water turbine blade row sagging prevention plate 16a Upper-mounted water turbine blade row sagging prevention plate 16b Lower installation water turbine blade row sagging prevention plate 17 Sprocket arrangement angle θ1 18 Half angle θ2 19 Part that meshes with sprocket 2 20 Part that receives water flow 21 Cutout hole 22 Sliding contact parts at both ends 23 Angle θ3

Claims

1. a turbine blade having a plate that receives the water flow at a predetermined angle and has a sprocket hole that rotates and meshes with the turbine sprocket; a turbine connecting hinge that connects a plurality of turbine blades and bends to fit the turbine; a turbine blade row that connects the plurality of turbine connecting hinges and the plurality of turbine blades to form an oval connecting the outer periphery of the plurality of turbines; a turbine sprocket that is mounted on the turbine and transmits the rotation of the turbine; a speed-up mechanism that is mounted on the turbine main frame and speeds up the rotation of the turbine sprocket; a generator that is mounted on the turbine main frame and rotates using the speed-up mechanism to generate electricity; and an auxiliary buoyancy body that keeps the floated draft position of the turbine at an appropriate level.

2. 2. An autonomous floating hydroelectric power generation device according to claim 1, further comprising a turbine blade row sagging prevention plate that prevents the turbine blade row from sagging due to gravity between the turbines and allows the turbine blade row to slide smoothly.

3. 2. The self-supporting floating hydroelectric power generating apparatus according to claim 1, wherein an additional water turbine is provided between the front and rear water turbines if possible.

4. 2. A self-supporting floating hydroelectric power generation device as described in claim 1, wherein the angle formed by the center of the sprocket holes that engage with the sprockets on both sides of the water turbine and the center of the water turbine connecting hinge that fixes the water turbine blades is 1 / 2 of the sprocket arrangement angle of the water turbine, based on the center of rotation of the water turbine.

5. The water turbine blades are made of a single sheet metal, with the portion that meshes with the sprocket of the water turbine and the portion that receives the water flow bent at a certain angle.

2. A self-supporting floating hydroelectric power generating device according to claim 1, wherein a cutout hole is provided in the portion receiving the water flow to match the outer shape of the water turbine connecting hinge so as not to come into contact with the water turbine connecting hinge.

6. 2. The self-supporting floating hydroelectric power generating apparatus according to claim 1, wherein the water turbine blades are provided at both ends with portions that slide over and come into contact with the water turbine blade row sagging prevention plates.

7. The self-supporting floating hydroelectric power generation device of claim 1, wherein the device main body frame is inclined at a certain angle relative to the auxiliary buoyancy body so that the downstream side of the water flow is downward, and the water turbine and the water turbine blade row mounted on the device main body frame are also inclined at a certain angle so that the downstream side of the water flow is downward.

8. 2. An autonomous floating hydroelectric power generation device as described in claim 1, wherein the diameter of the water turbine downstream of the water flow is larger than that of the water turbine upstream of the water flow, and the water turbine blades of the water turbine blade row are also oriented downward on the downstream side of the water flow.

Images