WO2018190136A1 - Hydroelectric power generating device - Google Patents

Hydroelectric power generating device Download PDF

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Publication number
WO2018190136A1
WO2018190136A1 PCT/JP2018/013149 JP2018013149W WO2018190136A1 WO 2018190136 A1 WO2018190136 A1 WO 2018190136A1 JP 2018013149 W JP2018013149 W JP 2018013149W WO 2018190136 A1 WO2018190136 A1 WO 2018190136A1
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WO
WIPO (PCT)
Prior art keywords
shaft
generator
hydroelectric
unit
axis
Prior art date
Application number
PCT/JP2018/013149
Other languages
French (fr)
Japanese (ja)
Inventor
浩氣 向井
智哉 川合
知美 後藤
年宏 小野田
文彦 松浦
Original Assignee
Ntn株式会社
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Publication of WO2018190136A1 publication Critical patent/WO2018190136A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
    • F03B11/08—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator for removing foreign matter, e.g. mud
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B17/00—Other machines or engines
    • F03B17/06—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/04—Machines or engines of reaction type; Parts or details peculiar thereto with substantially axial flow throughout rotors, e.g. propeller turbines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Definitions

  • the present invention relates to a hydroelectric power generation apparatus.
  • the water flowing in the flow path may contain foreign substances such as grass. Such foreign matter may get entangled with the blades and shafts of the turbine wheel. Such entanglement of the foreign matter on the blades and shafts of the water turbine leads to a decrease in the number of rotations of the water turbine, and consequently to a decrease in power generation efficiency of the hydroelectric generator.
  • JP 2008-144646 A 1 configurations described in JP 2013-170547 A (Patent Document 2) and JP 2013-22214 A (Patent Document 3) are known.
  • the hydroelectric generator described in Patent Document 1 has a power generating rotor blade.
  • the power generating rotor blade has a shaft portion and a blade portion.
  • the wing portion is provided in a spiral shape around the shaft portion, and has a diameter that increases from the upstream side toward the downstream side.
  • the hydraulic power generation device described in Patent Literature 1 suppresses the entanglement of the foreign matter on the wing portion and the shaft portion by discharging the foreign matter to the outer edge side of the wing portion.
  • the hydroelectric generator described in Patent Document 2 has an underwater device including an impeller and a drifting substance removing device.
  • the debris removal device has a debris trapping net at a position that projects outward from the underwater device.
  • the flotage trapping net is rotatable relative to the underwater device.
  • the hydroelectric generator described in Patent Literature 2 suppresses the entanglement of the foreign matter on the impeller by causing the drifting matter catching net to catch the foreign matter.
  • the hydroelectric generator described in Patent Document 3 is disposed along the flow of water, and is disposed on the upstream side of the runner, the rotating shaft rotating by the runner, the generator connected to the rotating shaft, and the runner. Have a net. The net rotates around an axis along the flow of water.
  • the hydroelectric generator described in Patent Document 3 causes a net to capture foreign matter and discharges the foreign matter to the outside by the rotation of the net.
  • the present invention has been made in view of the above-described problems of the prior art. More specifically, the present invention provides a hydroelectric generator that can effectively remove foreign matters entangled with a water turbine without increasing the size of the apparatus.
  • the hydroelectric power generation device includes a water turbine, a generator unit, and a drive unit.
  • the water wheel has a first shaft and a wing.
  • the wing is attached to the first shaft.
  • the wing is disposed in a flow path through which water flows, and rotates the first axis around the central axis of the first axis by water.
  • the generator unit has a generator.
  • the generator includes a second shaft, and generates power by rotation transmitted from the first shaft to the second shaft.
  • the drive unit rotates the first shaft relative to the generator within a plane including the extending direction of the first shaft.
  • FIG. 3 is a cross-sectional view taken along line III-III in FIG.
  • FIG. 4 is a sectional view taken along line IV-IV in FIG. 2.
  • FIG. 10 is a cross-sectional view taken along the line XX in FIG. 9.
  • first direction and the second direction being parallel means that the angle formed by the first direction and the second direction is 0 ° ⁇ 5 °
  • the right angle (orthogonal) between the direction and the second direction means that the angle formed by the first direction and the second direction is 90 ° ⁇ 5 °.
  • FIG. 1 is a top view of the hydroelectric generator according to the first embodiment.
  • FIG. 2 is a front view of the hydroelectric generator according to the first embodiment.
  • 3 is a cross-sectional view taken along line III-III in FIG. 4 is a cross-sectional view taken along line IV-IV in FIG.
  • the bearing housing 22, the generator 23, and the cover 24 are not shown in order to clarify the planar structure of the generator base 21.
  • the hydroelectric generator according to the first embodiment includes a water turbine 1, a generator unit 2, and a drive unit 3.
  • the water turbine 1 has a first shaft 11 and wings 12.
  • the wing 12 is attached to the first shaft 11.
  • the extending direction of the wing 12 is orthogonal to the extending direction of the first shaft 11.
  • the wing 12 is disposed in the flow path 4.
  • the blade 12 rotates the first shaft 11 around the central axis 11a by the pressure of water flowing in the flow path 4.
  • the flow path 4 has a bottom surface 41, a first side surface 42, a second side surface 43, and an upper surface 44.
  • the first side surface 42 and the second side surface 43 are opposed to each other.
  • Each of the first side surface 42 and the second side surface 43 is continuous with the bottom surface 41.
  • the upper surface 44 faces the bottom surface 41.
  • the channel 4 is open on the upper surface 44.
  • the direction of water flow is a direction perpendicular to the paper surface and from the front side to the back side of the paper surface.
  • the wing 12 is disposed in the flow path 4.
  • the generator unit 2 includes a generator base 21, a bearing housing 22, a generator 23, and a cover 24.
  • the generator stand 21 is disposed on the flow path 4. More specifically, the generator base 21 is disposed on the beam 5 spanned across the flow path 4 in the direction from the first side surface 42 to the second side surface 43.
  • the generator stand 21 has a first surface 21a and a second surface 21b.
  • the first surface 21 a is a surface on the side facing the upper surface 44 of the flow path 4.
  • the second surface 21b is the opposite surface of the first surface 21a.
  • the generator stand 21 is provided with a shaft hole 21c.
  • the shaft hole 21c penetrates the generator base 21 in the direction from the first surface 21a to the second surface 21b.
  • the generator base 21 is provided with a pin hole 21d, a pin hole 21e, a pin hole 21f, and a pin hole 21g.
  • the pin hole 21d, the pin hole 21e, the pin hole 21f, and the pin hole 21g penetrate the generator base 21 in the direction from the first surface 21a to the second surface 21b.
  • the pin hole 21d and the pin hole 21f are arranged at positions that are point-symmetric about the shaft hole 21c in plan view.
  • the pin hole 21e and the pin hole 21g are arranged at positions that are point-symmetric about the shaft hole 21c in plan view.
  • planar view means the case where it sees from the direction orthogonal to the 2nd surface 21b.
  • the direction from the shaft hole 21c toward the pin hole 21d and the direction from the shaft hole 21c toward the pin hole 21e are orthogonal to each other.
  • the direction from the shaft hole 21c toward the pin hole 21e and the direction from the shaft hole 21c toward the pin hole 21f are orthogonal to each other.
  • the direction from the shaft hole 21c toward the pin hole 21f and the direction from the shaft hole 21c toward the pin hole 21g are orthogonal to each other.
  • the direction from the shaft hole 21c toward the pin hole 21g and the direction from the shaft hole 21c toward the pin hole 21d are orthogonal to each other.
  • the bearing housing 22 is attached to the first surface 21 a of the generator base 21.
  • the bearing housing 22 is provided with a through hole 22a.
  • the bearing housing 22 is attached to the generator base 21 so that the center of the through hole 22a overlaps the center of the shaft hole 21c.
  • the portion of the through hole 22a located at the end of the first surface 21a side extends to the outside of the pin hole 21d, the pin hole 21e, the pin hole 21f, and the pin hole 21g. That is, the radius R of the through hole 22a located at the end on the first surface 21a side (generator base 21 side) is the center of the shaft hole 21c and the pin hole 21d (pin hole 21e, pin hole 21f or pin hole 21g). It is larger than the distance L from the center.
  • the generator 23 is mounted on the second surface 21b of the generator base 21.
  • the generator 23 has a generator body 23a and a second shaft 23b.
  • the second shaft 23b is passed through the shaft hole 21c and the through hole 22a.
  • the generator body 23a generates power by the rotation of the second shaft 23b.
  • the cover 24 is attached to the second surface 21 b of the generator base 21 so as to cover the generator 23.
  • the driving unit 3 includes a support 31, a stopper 32, and a gear box 33.
  • the support column 31 is a hollow cylindrical member. More specifically, the support column 31 has a cylindrical shape.
  • a second shaft 23 b is passed through the support column 31.
  • the extending direction of the support column 31 (the direction of the central axis 31c) is parallel to the extending direction of the second shaft 23b.
  • the column 31 has a first end 31a and a second end 31b.
  • the second end 31b is an end opposite to the first end 31a.
  • the support column 31 is attached to the generator unit 2 at the first end 31a so as to be rotatable relative to the generator unit 2 around the central axis 31c.
  • the support column 31 is preferably capable of rotating 360 ° relative to the generator unit 2 around the central axis 31c.
  • the support column 31 is attached so that the direction of the central axis 31c is parallel to the direction orthogonal to the first surface 21a.
  • the support post 31 has a flange 31d.
  • the flange 31 d is provided at the first end 31 a of the column 31.
  • the flange 31d extends so as to project in a direction orthogonal to the extending direction of the support column 31.
  • the support column 31 is attached to the generator unit 2 so that the flange 31d is positioned in the portion of the through hole 22a positioned at the end of the first surface 21a side (generator base 21 side).
  • the support column 31 is supported by the bearing 34 so as to be rotatable around the central axis 31c in the through hole 22a.
  • the pin 31e is provided in the flange 31d.
  • the flange 31d is arranged so that the position of the pin hole 31e coincides with the position of the pin hole 21d (the pin hole 21e, the pin hole 21f, and the pin hole 21g) by rotating the column 31 around the central axis 31c.
  • the stopper 32 is a pin-shaped member, for example. The stopper 32 is passed through the pin hole 21d, the pin hole 21e, the pin hole 21f or the pin hole 21g and the pin hole 31e. As a result, the rotation of the column 31 around the central axis 31c is stopped.
  • the support post 31 is fixed to the gear box 33 on the second end 31b side.
  • the column 31 being fixed to the gear box 33 means that the column 31 is attached to the gear box 33 so as not to rotate relative to the gear box 33 around the central axis 31c.
  • the gear box 33 has a first helical gear 33a and a second helical gear 33b.
  • the first shaft 11 is inserted into the gear box 33. Inside the gear box 33, the first shaft 11 is supported by, for example, a bearing 36 so as to be rotatable around the central axis 11a.
  • the first helical gear 33 a is attached to the first shaft 11.
  • the second shaft 23b is inserted into the gear box 33. Inside the gear box 33, the second shaft 23b is supported by, for example, a bearing 35 so as to be rotatable around the central axis.
  • the second shaft 23b is inserted into the gear box 33 so that the extending direction of the second shaft 23b and the extending direction of the first shaft 11 are orthogonal to each other. Since the extending direction of the second shaft 23 b is parallel to the direction of the central axis 31 c of the column 31, the extending direction of the first shaft 11 is orthogonal to the direction of the central axis 31 c of the column 31.
  • the second helical gear 33b is attached to the second shaft 23b.
  • the second helical gear 33b is arranged so as to mesh with the first helical gear 33a.
  • FIG. 5 is a plan view showing a first state of operation of the hydroelectric generator according to the first embodiment.
  • FIG. 6 is a plan view showing a second state of operation of the hydroelectric generator according to the first embodiment.
  • FIG. 7 is a plan view showing a third state of operation of the hydroelectric generator according to the first embodiment.
  • FIG. 8 is a plan view showing a fourth state of operation of the hydroelectric generator according to the first embodiment. 5, 6, 7, and 8, the bearing housing 22, the generator 23, and the cover 24 are not shown.
  • FIG.5, FIG.6, FIG.7 and FIG. 8 the direction of the water which flows through the flow path 4 is shown by the arrow.
  • the column 31 is rotated around the central axis 31c in the counterclockwise direction, and the stopper 32 is inserted into the pin hole 21e and the pin hole 31e, resulting in the state shown in FIG. 6 (second state). .
  • the first shaft 11 inserted into the gear box 33 is similarly changed as the support 31 rotates relative to the generator unit 2 around the central axis 31 c. Rotate. Since the extending direction of the first axis 11 is orthogonal to the central axis 31 c, the first axis 11 is a plane that includes the extending direction of the first axis 11 when shifting from the first state to the second state. Inside, it will rotate relative to the generator section 2.
  • the column 31 is rotated counterclockwise around the central axis 31c, and the stopper 32 is inserted into the pin hole 21f and the pin hole 31e, resulting in the state of FIG. 7 (third state).
  • the column 31 is rotated counterclockwise around the central axis 31c, and the stopper 32 is inserted into the pin hole 21g and the pin hole 31e, resulting in the state of FIG. 8 (fourth state). .
  • the first state is restored.
  • the hydroelectric generator according to the first embodiment normally performs a power generation operation in a state where the extending direction of the first shaft 11 is parallel to the direction of water flowing through the flow path 4. At this time, foreign matter contained in the water may adhere to the wing 12.
  • the first shaft 11 is rotated relative to the generator unit 2 in a plane including the extending direction of the first shaft 11. By doing so, the pressure of the water flowing in the flow path 4 acts in the direction of removing the foreign matter adhering to the blade 12.
  • the hydroelectric generator according to the first embodiment it is not necessary to move or rotate the generator unit 2 when removing foreign matter. Therefore, according to the hydraulic power generation device according to the first embodiment, it is possible to efficiently remove foreign substances adhering to the blades 12 without increasing the size of the device.
  • the drive unit 3 may rotate the first shaft 11 by 360 ° relative to the generator unit 2 within a plane including the extending direction of the first shaft 11.
  • the pressure of the water flowing through the flow path 4 acts on the blades 12 evenly when removing the foreign matter. Therefore, in this case, the foreign matter can be removed more efficiently.
  • the driving unit 3 determines the extending direction of the first shaft 11 at a position where the direction of the water flowing through the flow path 4 and the extending direction of the first shaft 11 are parallel.
  • the stopper 32 that stops the relative rotation of the first shaft 11 with respect to the generator unit 2 in the plane including the stopper 32 is used, the position of the blade 12 can be stably fixed without using other power. Power generation operation can be performed.
  • the drive unit 3 determines the extending direction of the first shaft 11 at a position where the direction of the water flowing through the flow path 4 and the extending direction of the first shaft 11 are perpendicular to each other.
  • the stopper 32 for stopping the relative rotation of the first shaft 11 with respect to the generator unit 2 in the plane including the stopper 32 is provided, the water flowing through the flow path 4 acting in the direction of removing foreign matter from the blade 12
  • the blade 12 can be fixed at a position where the pressure of the pressure becomes maximum. Therefore, in this case, the foreign matter adhering to the blade 12 can be more efficiently removed.
  • the drive unit 3 does not stop the rotation of the first shaft 11 around the central axis 11c, and the first shaft is within the plane including the extending direction of the first shaft 11.
  • the water pressure from the water flowing in the flow path 4 removes foreign matter from the blade 12 after the first shaft 11 has moved to a position where foreign matter is removed. It is easy to act in the direction to do. Therefore, in this case, the foreign matter adhering to the blade 12 can be more efficiently removed.
  • the rotation direction of the blade 12 when the drive unit 3 approaches the first shaft 11 closest to the bottom surface 41 of the flow path 4 follows the direction of water flow.
  • the water level of the water flowing through the flow path 4 is low, and a part of the blade 12 is exposed from the water surface. Even so, it is possible to efficiently remove foreign substances having a long overall length.
  • the rotation direction of the blade 12 when the drive unit 3 approaches the first shaft 11 closest to the bottom surface 41 of the flow path 4 is opposite to the direction of water flow.
  • the water pressure acting on the foreign matter can be increased.
  • the foreign matter is solid.
  • the removal can be performed efficiently.
  • FIG. 9 is a cross-sectional view of the hydroelectric generator according to the second embodiment.
  • 10 is a cross-sectional view taken along the line XX of FIG.
  • the hydroelectric generator according to the second embodiment includes a water turbine 1, a generator unit 2, and a drive unit 3.
  • the water turbine 1 has a first shaft 11 and a blade 12.
  • the generator unit 2 includes a generator stand 21, a bearing housing 22, a generator 23, and a cover 24.
  • the drive unit 3 includes a column 31, a stopper 32, and a gear box 33.
  • the configuration of the hydroelectric generator according to the second embodiment is common to the configuration of the hydroelectric generator according to the first embodiment.
  • the drive unit 3 includes a reverse rotation suppression unit 37.
  • the configuration of the hydroelectric generator according to the second embodiment is different from the configuration of the hydroelectric generator according to the first embodiment.
  • the reverse rotation suppression part 37 is attached on the outer peripheral surface of the support column 31 facing the through hole 22a.
  • the reverse rotation suppression unit 37 is, for example, a cam type one-way clutch.
  • the reverse rotation suppression unit 37 is not limited to this, and may be any unit that allows rotation around the central axis 31c of the support column 31 in one direction and suppresses it in the other direction.
  • a groove 37 a is provided on the inner peripheral surface of the reverse rotation inhibiting portion 37.
  • the groove 37a has a bottom surface 37b, a first side surface 37c, and a second side surface 37d that faces the first side surface 37c.
  • the bottom surface 37 b is a surface facing the center side of the reverse rotation suppression unit 37.
  • the first side surface 37c and the second side surface 37d are continuous with the bottom surface 37b.
  • the height of the first side surface 37c is smaller than the height of the second side surface 37d. That is, the bottom surface 37b is inclined so that the depth of the groove 37a becomes deeper from the first side surface 37c side toward the second side surface 37d side.
  • the reverse rotation suppression unit 37 has rollers 37e and springs 37f.
  • the roller 37e is disposed in the groove 37a so as to contact the bottom surface 37b and the outer peripheral surface of the column 31.
  • the spring 37f has one end connected to the second side surface 37d and the other end connected to the roller 37e.
  • the reverse rotation suppression unit 37 allows rotation around the central axis 31c of the support column 31 in one direction and suppresses it in the other direction. That is, the reverse rotation suppression unit 37 allows relative rotation of the first shaft 11 with respect to the generator unit 2 in a plane including the extending direction of the first shaft 11 in one direction and suppresses in the other direction. .
  • the reverse rotation suppression unit 37 allows the relative rotation of the first shaft 11 with respect to the generator unit 2 in a plane including the extending direction of the first shaft 11 in one direction, and in the other direction. Since it can suppress, the 1st axis
  • shaft 11 can be rotated stepwise against the flow of the water in the flow path 4. FIG. Therefore, in this case, the safety of the work of rotating the first shaft 11 can be improved.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Hydraulic Turbines (AREA)

Abstract

A hydroelectric power generating device according to one mode of embodiment of the present invention is provided with a water turbine (1), an electricity generator unit (2) and a drive unit (3). The water turbine (1) includes a first shaft (11) and a blade (12). The blade (12) is attached to the first shaft (11). The blade (12) is disposed in a flow path along which water flows, and by means of the water, causes the first shaft (11) to rotate about a central axis (11a) of the first shaft (11). The electricity generator unit (2) includes an electricity generator (23). The electricity generator (23) includes a second shaft (23b) and generates electricity as a result of rotation transmitted from the first shaft (11) to the second shaft (23b). The drive unit (3) causes the first shaft (11) to rotate relative to the electricity generator (23) in a plane containing the direction in which the first shaft (11) extends.

Description

水力発電装置Hydroelectric generator
　本発明は、水力発電装置に関する。 The present invention relates to a hydroelectric power generation apparatus.
　流路内を流れる水には、草等の異物が含まれている場合がある。このような異物は、水車の翼や軸に絡みつくおそれがある。このような異物の水車の翼や軸への絡みつきは、水車の回転数の低下、ひいては水力発電装置の発電効率の低下につながる。 The water flowing in the flow path may contain foreign substances such as grass. Such foreign matter may get entangled with the blades and shafts of the turbine wheel. Such entanglement of the foreign matter on the blades and shafts of the water turbine leads to a decrease in the number of rotations of the water turbine, and consequently to a decrease in power generation efficiency of the hydroelectric generator.
　従来から、水車の翼や軸への異物の絡みつきに起因した水車の回転数の低下及び水力発電装置の発電効率の低下を防止するための構成として、例えば特開２００８－１４４６４６号公報（特許文献１）、特開２０１３－１７０５４７号公報（特許文献２）及び特開２０１３－２２１４３７号公報（特許文献３）に記載の構成が知られている。 Conventionally, as a configuration for preventing a decrease in the rotation speed of a water turbine and a decrease in power generation efficiency of a hydroelectric power generation device due to the entanglement of foreign matter on the blades and shafts of the water turbine, for example, JP 2008-144646 A 1), configurations described in JP 2013-170547 A (Patent Document 2) and JP 2013-22214 A (Patent Document 3) are known.
　特許文献１に記載の水力発電装置は、発電用回転翼を有している。発電用回転翼は、軸部と、翼部とを有している。翼部は、軸部回りに螺旋状に設けられ、かつ上流側から下流側に向かって径が広がっている。特許文献１に記載の水力発電装置は、異物を翼部の外縁側に排出することにより、異物が翼部や軸部に絡みつくことを抑制している。 The hydroelectric generator described in Patent Document 1 has a power generating rotor blade. The power generating rotor blade has a shaft portion and a blade portion. The wing portion is provided in a spiral shape around the shaft portion, and has a diameter that increases from the upstream side toward the downstream side. The hydraulic power generation device described in Patent Literature 1 suppresses the entanglement of the foreign matter on the wing portion and the shaft portion by discharging the foreign matter to the outer edge side of the wing portion.
　特許文献２に記載の水力発電装置は、羽根車を含む水中装置と、漂流物除去装置を有している。漂流物除去装置は、水中装置よりも外側に張り出す位置において、漂流物捕捉網を有している。漂流物捕捉網は、水中装置に対して回転可能となっている。特許文献２に記載の水力発電装置は、漂流物捕捉網に異物を捕捉させることにより、羽根車に異物が絡みつくことを抑制している。 The hydroelectric generator described in Patent Document 2 has an underwater device including an impeller and a drifting substance removing device. The debris removal device has a debris trapping net at a position that projects outward from the underwater device. The flotage trapping net is rotatable relative to the underwater device. The hydroelectric generator described in Patent Literature 2 suppresses the entanglement of the foreign matter on the impeller by causing the drifting matter catching net to catch the foreign matter.
　特許文献３に記載の水力発電装置は、水の流れに沿うように配置され、ランナにより回転する回転軸と、回転軸に接続されている発電機と、ランナよりも上流側に配置されているネットとを有している。ネットは、水の流れに沿う軸回りに回転する。特許文献３に記載の水力発電装置は、ネットに異物を捕捉させるとともに、ネットの回転により異物を外側に排出する。 The hydroelectric generator described in Patent Document 3 is disposed along the flow of water, and is disposed on the upstream side of the runner, the rotating shaft rotating by the runner, the generator connected to the rotating shaft, and the runner. Have a net. The net rotates around an axis along the flow of water. The hydroelectric generator described in Patent Document 3 causes a net to capture foreign matter and discharges the foreign matter to the outside by the rotation of the net.
特開２００８－１４４６４６号公報JP 2008-144646 A 特開２０１３－１７０５４７号公報JP 2013-170547 A 特開２０１３－２２１４３７号公報JP 2013-22214 A
　特許文献１に記載の水力発電装置においては、全長が長い異物などが絡まり付くことによる発電効率の低下が懸念される。特許文献２に記載の水力発電装置においては、水中機械以外に漂流物除去装置を設ける必要があるため、装置の大型化につながる。特許文献３に記載の水力発電装置においては、全長が長い異物の場合は、当該異物がさらにネットに絡まり、当該異物を起点としてさらに別の異物が絡みついてしまうおそれがある。 In the hydroelectric power generation device described in Patent Document 1, there is a concern that power generation efficiency may be reduced due to entanglement of foreign matters having a long overall length. In the hydroelectric generator described in Patent Document 2, it is necessary to provide a drifting substance removing device in addition to the underwater machine, which leads to an increase in the size of the device. In the hydroelectric generator described in Patent Document 3, in the case of a foreign object having a long total length, the foreign object may be further entangled with the net, and another foreign object may be entangled with the foreign object as a starting point.
　本発明は、上記のような従来技術の問題点に鑑みてなされたものである。より具体的には、本発明は、装置を大型化させることなく、水車に絡みついた異物を効果的に除去することができる水力発電装置を提供する。 The present invention has been made in view of the above-described problems of the prior art. More specifically, the present invention provides a hydroelectric generator that can effectively remove foreign matters entangled with a water turbine without increasing the size of the apparatus.
　本発明の一態様に係る水力発電装置は、水車と、発電機部と、駆動部とを備える。水車は、第１軸と、翼とを有する。翼は、第１軸に取り付けられる。翼は、水が流れる流路内に配置され、かつ水によって第１軸を第１軸の中心軸周りに回転させる。発電機部は、発電機を有する。発電機は、第２軸を含み、第１軸から第２軸に伝達される回転により発電を行う。駆動部は、第１軸を、第１軸の延在方向を含む平面内で、発電機に対して相対的に回転させる。 The hydroelectric power generation device according to one aspect of the present invention includes a water turbine, a generator unit, and a drive unit. The water wheel has a first shaft and a wing. The wing is attached to the first shaft. The wing is disposed in a flow path through which water flows, and rotates the first axis around the central axis of the first axis by water. The generator unit has a generator. The generator includes a second shaft, and generates power by rotation transmitted from the first shaft to the second shaft. The drive unit rotates the first shaft relative to the generator within a plane including the extending direction of the first shaft.
　本発明の一態様に係る水力発電装置によると、装置を大型化させることなく、効果的に水車に絡みついた異物を除去することができる。 According to the hydraulic power generation apparatus according to one aspect of the present invention, it is possible to effectively remove foreign matters entangled with the water turbine without increasing the size of the apparatus.
第１実施形態に係る水力発電装置の上面図である。It is a top view of the hydroelectric generator concerning a 1st embodiment. 第１実施形態に係る水力発電装置の正面図である。It is a front view of the hydroelectric generator concerning a 1st embodiment. 図２のＩＩＩ－ＩＩＩにおける断面図である。FIG. 3 is a cross-sectional view taken along line III-III in FIG. 図２のＩＶ－ＩＶにおける断面図である。FIG. 4 is a sectional view taken along line IV-IV in FIG. 2. 第１実施形態に係る水力発電装置の動作の第１状態を示す平面図である。It is a top view which shows the 1st state of operation | movement of the hydraulic power unit which concerns on 1st Embodiment. 第１実施形態に係る水力発電装置の動作の第２状態を示す平面図である。It is a top view which shows the 2nd state of operation | movement of the hydraulic power unit which concerns on 1st Embodiment. 第１実施形態に係る水力発電装置の動作の第３状態を示す平面図である。It is a top view which shows the 3rd state of operation | movement of the hydroelectric generator which concerns on 1st Embodiment. 第１実施形態に係る水力発電装置の動作の第４状態を示す平面図である。It is a top view which shows the 4th state of operation | movement of the hydroelectric generator which concerns on 1st Embodiment. 第２実施形態に係る水力発電装置の断面図である。It is sectional drawing of the hydroelectric generator which concerns on 2nd Embodiment. 図９のＸ－Ｘにおける断面図である。FIG. 10 is a cross-sectional view taken along the line XX in FIG. 9.
　以下、図面を参照して本発明の実施形態を説明する。以下の図面においては、同一又は相当する部分に同一の参照番号を付し、その説明は繰り返さないものとする。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following drawings, the same or corresponding parts are denoted by the same reference numerals, and the description thereof will not be repeated.
　なお、以下の説明において、第１の方向と第２の方向とが平行とは、第１の方向と第２の方向とがなす角度が０°±５°であることをいい、第１の方向と第２の方向とが直角（直交）とは、第１の方向と第２の方向とがなす角度が９０°±５°であることをいう。 In the following description, the first direction and the second direction being parallel means that the angle formed by the first direction and the second direction is 0 ° ± 5 °, The right angle (orthogonal) between the direction and the second direction means that the angle formed by the first direction and the second direction is 90 ° ± 5 °.
　（第１実施形態）
　以下に、第１実施形態に係る水力発電装置の構成について説明する。 (First embodiment)
Below, the structure of the hydraulic power unit which concerns on 1st Embodiment is demonstrated.
　図１は、第１実施形態に係る水力発電装置の上面図である。図２は、第１実施形態に係る水力発電装置の正面図である。図３は、図２のＩＩＩ－ＩＩＩにおける断面図である。図４は、図２のＩＶ－ＩＶにおける断面図である。なお、図１においては、発電機台２１の平面構造を明らかにするために、軸受ハウジング２２、発電機２３及びカバー２４の図示は省略されている。図１、図２、図３及び図４に示すように、第１の実施形態に係る水力発電装置は、水車１と、発電機部２と、駆動部３とを有している。 FIG. 1 is a top view of the hydroelectric generator according to the first embodiment. FIG. 2 is a front view of the hydroelectric generator according to the first embodiment. 3 is a cross-sectional view taken along line III-III in FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. In FIG. 1, the bearing housing 22, the generator 23, and the cover 24 are not shown in order to clarify the planar structure of the generator base 21. As shown in FIGS. 1, 2, 3, and 4, the hydroelectric generator according to the first embodiment includes a water turbine 1, a generator unit 2, and a drive unit 3.
　水車１は、第１軸１１と、翼１２とを有している。翼１２は、第１軸１１に取り付けられている。翼１２の延在方向は、第１軸１１の延在方向と、直交している。翼１２は、流路４内に配置されている。翼１２は、流路４内を流れている水の圧力により、第１軸１１を、中心軸１１ａ周りに回転させる。 The water turbine 1 has a first shaft 11 and wings 12. The wing 12 is attached to the first shaft 11. The extending direction of the wing 12 is orthogonal to the extending direction of the first shaft 11. The wing 12 is disposed in the flow path 4. The blade 12 rotates the first shaft 11 around the central axis 11a by the pressure of water flowing in the flow path 4.
　流路４は、底面４１と、第１側面４２と、第２側面４３と、上面４４とを有している。第１側面４２及び第２側面４３は、互いに対向している。第１側面４２及び第２側面４３の各々は、底面４１に連なっている。上面４４は、底面４１に対向している。流路４は、上面４４において、開放されている。 The flow path 4 has a bottom surface 41, a first side surface 42, a second side surface 43, and an upper surface 44. The first side surface 42 and the second side surface 43 are opposed to each other. Each of the first side surface 42 and the second side surface 43 is continuous with the bottom surface 41. The upper surface 44 faces the bottom surface 41. The channel 4 is open on the upper surface 44.
　流路４内には、水が流れる。なお、図２中において、水の流れの方向は、紙面に垂直かつ紙面の表側から裏側に向かう方向である。翼１２は、流路４内に配置されている。 Water flows in the flow path 4. In FIG. 2, the direction of water flow is a direction perpendicular to the paper surface and from the front side to the back side of the paper surface. The wing 12 is disposed in the flow path 4.
　発電機部２は、発電機台２１と、軸受ハウジング２２と、発電機２３と、カバー２４とを有している。発電機台２１は、流路４の上に配置されている。より詳細には、発電機台２１は、第１側面４２から第２側面４３に向かう方向に流路４を跨ぐように架け渡された梁５の上に配置されている。 The generator unit 2 includes a generator base 21, a bearing housing 22, a generator 23, and a cover 24. The generator stand 21 is disposed on the flow path 4. More specifically, the generator base 21 is disposed on the beam 5 spanned across the flow path 4 in the direction from the first side surface 42 to the second side surface 43.
　発電機台２１は、第１面２１ａと、第２面２１ｂとを有している。第１面２１ａは、流路４の上面４４と対向している側の面である。第２面２１ｂは、第１面２１ａの反対面である。 The generator stand 21 has a first surface 21a and a second surface 21b. The first surface 21 a is a surface on the side facing the upper surface 44 of the flow path 4. The second surface 21b is the opposite surface of the first surface 21a.
　発電機台２１には、軸穴２１ｃが設けられている。軸穴２１ｃは、第１面２１ａから第２面２１ｂに向かう方向に、発電機台２１を貫通している。 The generator stand 21 is provided with a shaft hole 21c. The shaft hole 21c penetrates the generator base 21 in the direction from the first surface 21a to the second surface 21b.
　発電機台２１には、ピン穴２１ｄと、ピン穴２１ｅと、ピン穴２１ｆと、ピン穴２１ｇとが設けられている。ピン穴２１ｄ、ピン穴２１ｅ、ピン穴２１ｆ及びピン穴２１ｇは、第１面２１ａから第２面２１ｂに向かう方向に、発電機台２１を貫通している。 The generator base 21 is provided with a pin hole 21d, a pin hole 21e, a pin hole 21f, and a pin hole 21g. The pin hole 21d, the pin hole 21e, the pin hole 21f, and the pin hole 21g penetrate the generator base 21 in the direction from the first surface 21a to the second surface 21b.
　ピン穴２１ｄ及びピン穴２１ｆは、平面視において、軸穴２１ｃを中心として点対称となる位置に配置されている。ピン穴２１ｅ及びピン穴２１ｇは、平面視において、軸穴２１ｃを中心として点対称となる位置に配置されている。なお、平面視とは、第２面２１ｂに直交する方向からみた場合をいう。 The pin hole 21d and the pin hole 21f are arranged at positions that are point-symmetric about the shaft hole 21c in plan view. The pin hole 21e and the pin hole 21g are arranged at positions that are point-symmetric about the shaft hole 21c in plan view. In addition, planar view means the case where it sees from the direction orthogonal to the 2nd surface 21b.
　軸穴２１ｃからピン穴２１ｄに向かう方向と軸穴２１ｃからピン穴２１ｅに向かう方向とは、直交している。軸穴２１ｃからピン穴２１ｅに向かう方向と軸穴２１ｃからピン穴２１ｆに向かう方向とは、直交している。軸穴２１ｃからピン穴２１ｆに向かう方向と軸穴２１ｃからピン穴２１ｇに向かう方向とは、直交している。軸穴２１ｃからピン穴２１ｇに向かう方向と軸穴２１ｃからピン穴２１ｄに向かう方向とは、直交している。 The direction from the shaft hole 21c toward the pin hole 21d and the direction from the shaft hole 21c toward the pin hole 21e are orthogonal to each other. The direction from the shaft hole 21c toward the pin hole 21e and the direction from the shaft hole 21c toward the pin hole 21f are orthogonal to each other. The direction from the shaft hole 21c toward the pin hole 21f and the direction from the shaft hole 21c toward the pin hole 21g are orthogonal to each other. The direction from the shaft hole 21c toward the pin hole 21g and the direction from the shaft hole 21c toward the pin hole 21d are orthogonal to each other.
　軸受ハウジング２２は、発電機台２１の第１面２１ａに取り付けられている。軸受ハウジング２２には、貫通穴２２ａが設けられている。軸受ハウジング２２は、貫通穴２２ａの中心が軸穴２１ｃの中心と重なるように、発電機台２１に取り付けられている。 The bearing housing 22 is attached to the first surface 21 a of the generator base 21. The bearing housing 22 is provided with a through hole 22a. The bearing housing 22 is attached to the generator base 21 so that the center of the through hole 22a overlaps the center of the shaft hole 21c.
　第１面２１ａ側（発電機台２１側）の端に位置する貫通穴２２ａの部分は、ピン穴２１ｄ、ピン穴２１ｅ、ピン穴２１ｆ及びピン穴２１ｇよりも外側まで延在している。すなわち、第１面２１ａ側（発電機台２１側）の端に位置する貫通穴２２ａの半径Ｒは、軸穴２１ｃの中心とピン穴２１ｄ（ピン穴２１ｅ、ピン穴２１ｆ又はピン穴２１ｇ）の中心との間の距離Ｌよりも大きくなっている。 The portion of the through hole 22a located at the end of the first surface 21a side (generator base 21 side) extends to the outside of the pin hole 21d, the pin hole 21e, the pin hole 21f, and the pin hole 21g. That is, the radius R of the through hole 22a located at the end on the first surface 21a side (generator base 21 side) is the center of the shaft hole 21c and the pin hole 21d (pin hole 21e, pin hole 21f or pin hole 21g). It is larger than the distance L from the center.
　発電機２３は、発電機台２１の第２面２１ｂ上に取り付けられている。発電機２３は、発電機本体２３ａと、第２軸２３ｂを有している。第２軸２３ｂは、軸穴２１ｃ及び貫通穴２２ａに通されている。発電機本体２３ａは、第２軸２３ｂの回転により発電を行う。カバー２４は、発電機２３を覆うように、発電機台２１の第２面２１ｂに取り付けられている。 The generator 23 is mounted on the second surface 21b of the generator base 21. The generator 23 has a generator body 23a and a second shaft 23b. The second shaft 23b is passed through the shaft hole 21c and the through hole 22a. The generator body 23a generates power by the rotation of the second shaft 23b. The cover 24 is attached to the second surface 21 b of the generator base 21 so as to cover the generator 23.
　駆動部３は、支柱３１と、ストッパ３２と、ギアボックス３３を有している。支柱３１は、中空の筒状部材である。より具体的には、支柱３１は、円筒形状を有している。支柱３１の内部には、第２軸２３ｂが通されている。支柱３１の延在方向（中心軸３１ｃの方向）は、第２軸２３ｂの延在方向と、平行となっている。支柱３１は、第１端３１ａと、第２端３１ｂとを有している。第２端３１ｂは、第１端３１ａの反対側の端である。 The driving unit 3 includes a support 31, a stopper 32, and a gear box 33. The support column 31 is a hollow cylindrical member. More specifically, the support column 31 has a cylindrical shape. A second shaft 23 b is passed through the support column 31. The extending direction of the support column 31 (the direction of the central axis 31c) is parallel to the extending direction of the second shaft 23b. The column 31 has a first end 31a and a second end 31b. The second end 31b is an end opposite to the first end 31a.
　支柱３１は、第１端３１ａにおいて、中心軸３１ｃ周りに発電機部２に対して相対的に回転可能なように発電機部２に取り付けられている。支柱３１は、中心軸３１ｃ周りに発電機部２に対して相対的に３６０°回転可能となっていることが好ましい。支柱３１は、中心軸３１ｃの方向が、第１面２１ａに直交する方向と平行となるように取り付けられている。 The support column 31 is attached to the generator unit 2 at the first end 31a so as to be rotatable relative to the generator unit 2 around the central axis 31c. The support column 31 is preferably capable of rotating 360 ° relative to the generator unit 2 around the central axis 31c. The support column 31 is attached so that the direction of the central axis 31c is parallel to the direction orthogonal to the first surface 21a.
　支柱３１は、フランジ３１ｄを有している。フランジ３１ｄは、支柱３１の第１端３１ａに設けられている。フランジ３１ｄは、支柱３１の延在方向と直交する方向に張り出すように、延在している。支柱３１は、フランジ３１ｄが、第１面２１ａ側（発電機台２１側）の端に位置する貫通穴２２ａの部分内に位置するように、発電機部２に取り付けられている。支柱３１は、例えば、ベアリング３４により、貫通穴２２ａ内において、中心軸３１ｃ周りに回転可能に支持されている。 The support post 31 has a flange 31d. The flange 31 d is provided at the first end 31 a of the column 31. The flange 31d extends so as to project in a direction orthogonal to the extending direction of the support column 31. The support column 31 is attached to the generator unit 2 so that the flange 31d is positioned in the portion of the through hole 22a positioned at the end of the first surface 21a side (generator base 21 side). The support column 31 is supported by the bearing 34 so as to be rotatable around the central axis 31c in the through hole 22a.
　フランジ３１ｄには、ピン穴３１ｅが設けられている。フランジ３１ｄは、支柱３１を中心軸３１ｃ周りに回転させることにより、ピン穴３１ｅの位置がピン穴２１ｄ（ピン穴２１ｅ、ピン穴２１ｆ及びピン穴２１ｇ）の位置と一致するように配置されている。ストッパ３２は、例えば、ピン状の部材である。ストッパ３２は、ピン穴２１ｄ、ピン穴２１ｅ、ピン穴２１ｆ又はピン穴２１ｇとピン穴３１ｅとに通されている。これにより、支柱３１の中心軸３１ｃ周りの回転が停止される。 The pin 31e is provided in the flange 31d. The flange 31d is arranged so that the position of the pin hole 31e coincides with the position of the pin hole 21d (the pin hole 21e, the pin hole 21f, and the pin hole 21g) by rotating the column 31 around the central axis 31c. . The stopper 32 is a pin-shaped member, for example. The stopper 32 is passed through the pin hole 21d, the pin hole 21e, the pin hole 21f or the pin hole 21g and the pin hole 31e. As a result, the rotation of the column 31 around the central axis 31c is stopped.
　支柱３１は、第２端３１ｂ側において、ギアボックス３３に固定されている。支柱３１がギアボックス３３に固定されるとは、支柱３１が、ギアボックス３３に対して中心軸３１ｃ周りに相対的に回転しないように、ギアボックス３３に取り付けられていることをいう。 The support post 31 is fixed to the gear box 33 on the second end 31b side. The column 31 being fixed to the gear box 33 means that the column 31 is attached to the gear box 33 so as not to rotate relative to the gear box 33 around the central axis 31c.
　ギアボックス３３は、第１はすば歯車３３ａと第２はすば歯車３３ｂとを有している。ギアボックス３３には第１軸１１が挿入されている。ギアボックス３３の内部において、第１軸１１は、例えばベアリング３６により、中心軸１１ａ周りに回転可能に支持されている。第１はすば歯車３３ａは、第１軸１１に取り付けられている。 The gear box 33 has a first helical gear 33a and a second helical gear 33b. The first shaft 11 is inserted into the gear box 33. Inside the gear box 33, the first shaft 11 is supported by, for example, a bearing 36 so as to be rotatable around the central axis 11a. The first helical gear 33 a is attached to the first shaft 11.
　ギアボックス３３には、第２軸２３ｂが挿入されている。ギアボックス３３の内部において、第２軸２３ｂは、例えばベアリング３５により、中心軸周りに回転可能に支持されている。第２軸２３ｂは、第２軸２３ｂの延在方向と第１軸１１の延在方向とが直交するように、ギアボックス３３に挿入されている。第２軸２３ｂの延在方向は支柱３１の中心軸３１ｃの方向と平行であるため、第１軸１１の延在方向は、支柱３１の中心軸３１ｃの方向と直交している。 The second shaft 23b is inserted into the gear box 33. Inside the gear box 33, the second shaft 23b is supported by, for example, a bearing 35 so as to be rotatable around the central axis. The second shaft 23b is inserted into the gear box 33 so that the extending direction of the second shaft 23b and the extending direction of the first shaft 11 are orthogonal to each other. Since the extending direction of the second shaft 23 b is parallel to the direction of the central axis 31 c of the column 31, the extending direction of the first shaft 11 is orthogonal to the direction of the central axis 31 c of the column 31.
　第２はすば歯車３３ｂは、第２軸２３ｂに取り付けられている。第２はすば歯車３３ｂは、第１はすば歯車３３ａとかみ合うように配置されている。これにより、第１軸１１の中心軸１１ａ周りの回転は、第２軸２３ｂに伝達され、第２軸２３ｂの中心軸周りの回転に変換される。さらに、これにより、第１軸１１が、第１軸１１の延在方向を含む平面内で、第２軸２３ｂに対して回転しても、第１軸１１の中心軸１１ａ周りの回転は、第２軸２３ｂに伝達されることになる。 The second helical gear 33b is attached to the second shaft 23b. The second helical gear 33b is arranged so as to mesh with the first helical gear 33a. Thereby, the rotation of the first shaft 11 around the central axis 11a is transmitted to the second shaft 23b and converted into the rotation of the second shaft 23b around the central axis. Further, by this, even if the first shaft 11 rotates with respect to the second shaft 23b in a plane including the extending direction of the first shaft 11, the rotation around the central axis 11a of the first shaft 11 is It is transmitted to the second shaft 23b.
　以下に、第１実施形態に係る水力発電装置の動作について説明する。
　図５は、第１実施形態に係る水力発電装置の動作の第１状態を示す平面図である。図６は、第１実施形態に係る水力発電装置の動作の第２状態を示す平面図である。図７は、第１実施形態に係る水力発電装置の動作の第３状態を示す平面図である。図８は、第１実施形態に係る水力発電装置の動作の第４状態を示す平面図である。なお、図５、図６、図７及び図８においては、軸受ハウジング２２、発電機２３及びカバー２４の図示は省略されている。また、図５、図６、図７及び図８においては、流路４を流れる水の方向が矢印により示されている。 Below, operation | movement of the hydraulic power unit which concerns on 1st Embodiment is demonstrated.
FIG. 5 is a plan view showing a first state of operation of the hydroelectric generator according to the first embodiment. FIG. 6 is a plan view showing a second state of operation of the hydroelectric generator according to the first embodiment. FIG. 7 is a plan view showing a third state of operation of the hydroelectric generator according to the first embodiment. FIG. 8 is a plan view showing a fourth state of operation of the hydroelectric generator according to the first embodiment. 5, 6, 7, and 8, the bearing housing 22, the generator 23, and the cover 24 are not shown. Moreover, in FIG.5, FIG.6, FIG.7 and FIG. 8, the direction of the water which flows through the flow path 4 is shown by the arrow.
　図５に示すように、ストッパ３２がピン穴２１ｄ及びピン穴３１ｅに挿入されている状態（第１状態）においては、第１軸１１の延在方向が流路４を流れる水の方向と平行となっている。 As shown in FIG. 5, in the state where the stopper 32 is inserted into the pin hole 21 d and the pin hole 31 e (first state), the extending direction of the first shaft 11 is parallel to the direction of water flowing through the flow path 4. It has become.
　第１状態から、支柱３１を中心軸３１ｃ周りに、反時計回り方向に回転させるとともに、ピン穴２１ｅ及びピン穴３１ｅにストッパ３２を挿入することで、図６の状態となる（第２状態）。 From the first state, the column 31 is rotated around the central axis 31c in the counterclockwise direction, and the stopper 32 is inserted into the pin hole 21e and the pin hole 31e, resulting in the state shown in FIG. 6 (second state). .
　ギアボックス３３は支柱３１に固定されているため、支柱３１が中心軸３１ｃ周りに発電機部２に対して相対的に回転するに伴い、ギアボックス３３に挿入された第１軸１１も同様に回転する。第１軸１１の延在方向は、中心軸３１ｃと直交しているため、第１状態から第２状態に移行する際に、第１軸１１は、第１軸１１の延在方向を含む平面内において、発電機部２に対して相対的に回転することになる。 Since the gear box 33 is fixed to the support 31, the first shaft 11 inserted into the gear box 33 is similarly changed as the support 31 rotates relative to the generator unit 2 around the central axis 31 c. Rotate. Since the extending direction of the first axis 11 is orthogonal to the central axis 31 c, the first axis 11 is a plane that includes the extending direction of the first axis 11 when shifting from the first state to the second state. Inside, it will rotate relative to the generator section 2.
　軸穴２１ｃからピン穴２１ｄに向かう方向と軸穴２１ｃからピン穴２１ｅに向かう方向とは直交しているため、第２状態においては、第１軸１１の延在方向と流路４内を流れる水の方向とは、直角となっている。 Since the direction from the shaft hole 21c to the pin hole 21d and the direction from the shaft hole 21c to the pin hole 21e are orthogonal to each other, in the second state, the direction in which the first shaft 11 extends and the flow path 4 flow. It is perpendicular to the direction of the water.
　第２状態から、支柱３１を中心軸３１ｃ周りに反時計回り方向に回転させるとともに、ピン穴２１ｆ及びピン穴３１ｅにストッパ３２を挿入することで、図７の状態となる（第３状態）。第３状態から、支柱３１を中心軸３１ｃ周りに、反時計回り方向に回転させるとともに、ピン穴２１ｇ及びピン穴３１ｅにストッパ３２を挿入することで、図８の状態となる（第４状態）。第４状態から再度同様の動作を繰り返すことにより、第１状態に戻る。 From the second state, the column 31 is rotated counterclockwise around the central axis 31c, and the stopper 32 is inserted into the pin hole 21f and the pin hole 31e, resulting in the state of FIG. 7 (third state). From the third state, the column 31 is rotated counterclockwise around the central axis 31c, and the stopper 32 is inserted into the pin hole 21g and the pin hole 31e, resulting in the state of FIG. 8 (fourth state). . By repeating the same operation again from the fourth state, the first state is restored.
　第２状態と第４状態とでは、翼１２の回転方向に変化がない場合、最も流路４の底面４１に接近する際の翼１２の回転方向の流路４を流れる水の方向に対する関係が逆となっている。すなわち、例えば、第２状態において最も流路４の底面４１に接近する際の翼１２の回転方向が流路４を流れる水の方向に沿う場合、第４の状態において最も流路４の底面４１に接近する際の翼１２の回転方向は、流路４を流れる水の方向に逆行する。 In the second state and the fourth state, when there is no change in the rotation direction of the blade 12, there is a relationship with respect to the direction of water flowing through the flow path 4 in the rotation direction of the blade 12 when approaching the bottom surface 41 of the flow path 4. The reverse is true. That is, for example, when the rotation direction of the blade 12 when approaching the bottom surface 41 of the flow path 4 most in the second state is along the direction of the water flowing through the flow path 4, the bottom surface 41 of the flow path 4 is the most in the fourth state. The direction of rotation of the blade 12 when approaching is reversed to the direction of water flowing through the flow path 4.
　上記においては、支柱３１を中心軸３１ｃ周りに、反時計回り方向に回転させる場合について説明したが、支柱３１は中心軸周りに時計回り方向に回転させてもよい。 In the above description, the case where the support column 31 is rotated counterclockwise around the central axis 31c has been described. However, the support column 31 may be rotated clockwise around the central axis.
　以下に、第１実施形態に係る水力発電装置の効果について説明する。
　第１実施形態に係る水力発電装置は、通常は、第１軸１１の延在方向が流路４を流れる水の方向と平行となる状態において、発電動作が行われる。この際、翼１２に水中に含まれる異物が付着する場合がある。第１実施形態に係る水力発電装置においては、翼１２に異物が付着した際、第１軸１１の延在方向を含む平面内において第１軸１１を発電機部２に対して相対的に回転させることにより、流路４内を流れる水の圧力が、翼１２に付着した異物を除去する方向に作用することになる。 Below, the effect of the hydroelectric generator which concerns on 1st Embodiment is demonstrated.
The hydroelectric generator according to the first embodiment normally performs a power generation operation in a state where the extending direction of the first shaft 11 is parallel to the direction of water flowing through the flow path 4. At this time, foreign matter contained in the water may adhere to the wing 12. In the hydroelectric generator according to the first embodiment, when foreign matter adheres to the wing 12, the first shaft 11 is rotated relative to the generator unit 2 in a plane including the extending direction of the first shaft 11. By doing so, the pressure of the water flowing in the flow path 4 acts in the direction of removing the foreign matter adhering to the blade 12.
　このように、第１実施形態に係る水力発電装置においては、異物除去の際に、発電機部２を移動ないし回転させる必要はない。そのため、第１実施形態に係る水力発電装置によると、装置を大型化させることなく効率的に翼１２に付着する異物の除去を行うことができる。 Thus, in the hydroelectric generator according to the first embodiment, it is not necessary to move or rotate the generator unit 2 when removing foreign matter. Therefore, according to the hydraulic power generation device according to the first embodiment, it is possible to efficiently remove foreign substances adhering to the blades 12 without increasing the size of the device.
　第１実施形態に係る水力発電装置において、駆動部３が、第１軸１１の延在方向を含む平面内で発電機部２に対して相対的に第１軸１１を３６０°回転させることができるように構成されている場合、異物除去の際に翼１２にまんべんなく流路４内を流れる水の圧力が作用する。そのため、この場合には、さらに効率的に異物の除去を行うことができる。 In the hydroelectric generator according to the first embodiment, the drive unit 3 may rotate the first shaft 11 by 360 ° relative to the generator unit 2 within a plane including the extending direction of the first shaft 11. When configured to be able to do so, the pressure of the water flowing through the flow path 4 acts on the blades 12 evenly when removing the foreign matter. Therefore, in this case, the foreign matter can be removed more efficiently.
　第１実施形態に係る水力発電装置において、駆動部３が、流路４を流れる水の方向と第１軸１１の延在方向とが平行となる位置において、第１軸１１の延在方向を含む平面内での第１軸１１の発電機部２に対する相対的な回転を停止させるストッパ３２を有している場合、他の動力を用いることなく、翼１２の位置を固定して安定して発電動作を行うことができる。 In the hydroelectric generator according to the first embodiment, the driving unit 3 determines the extending direction of the first shaft 11 at a position where the direction of the water flowing through the flow path 4 and the extending direction of the first shaft 11 are parallel. In the case where the stopper 32 that stops the relative rotation of the first shaft 11 with respect to the generator unit 2 in the plane including the stopper 32 is used, the position of the blade 12 can be stably fixed without using other power. Power generation operation can be performed.
　第１実施形態に係る水力発電装置において、駆動部３が、流路４を流れる水の方向と第１軸１１の延在方向とが直角となる位置において、第１軸１１の延在方向を含む平面内での第１軸１１の発電機部２に対する相対的な回転を停止させるストッパ３２を有している場合、翼１２から異物を除去しようとする方向に作用する流路４を流れる水の圧力が最大となる位置に、翼１２を固定できる。そのため、この場合には、さらに効率的に翼１２に付着する異物の除去を行うことができる。 In the hydroelectric generator according to the first embodiment, the drive unit 3 determines the extending direction of the first shaft 11 at a position where the direction of the water flowing through the flow path 4 and the extending direction of the first shaft 11 are perpendicular to each other. In the case where the stopper 32 for stopping the relative rotation of the first shaft 11 with respect to the generator unit 2 in the plane including the stopper 32 is provided, the water flowing through the flow path 4 acting in the direction of removing foreign matter from the blade 12 The blade 12 can be fixed at a position where the pressure of the pressure becomes maximum. Therefore, in this case, the foreign matter adhering to the blade 12 can be more efficiently removed.
　第１実施形態に係る水力発電装置において、駆動部３が、第１軸１１の中心軸１１ｃ周りの回転を停止させることなく、第１軸１１の延在方向を含む平面内において、第１軸１１を発電機部２に対して相対的に回転させる場合、第１軸１１が異物の除去を行う位置まで移動した後に、流路４内を流れる水からの水圧が、翼１２から異物を除去する方向に作用しやすい。そのため、この場合には、さらに効率的に翼１２に付着する異物の除去を行うことができる。 In the hydroelectric generator according to the first embodiment, the drive unit 3 does not stop the rotation of the first shaft 11 around the central axis 11c, and the first shaft is within the plane including the extending direction of the first shaft 11. When rotating 11 relative to the generator section 2, the water pressure from the water flowing in the flow path 4 removes foreign matter from the blade 12 after the first shaft 11 has moved to a position where foreign matter is removed. It is easy to act in the direction to do. Therefore, in this case, the foreign matter adhering to the blade 12 can be more efficiently removed.
　第１実施形態に係る水力発電装置において、駆動部３が、第１軸１１を、流路４の底面４１に最も近づく際の翼１２の回転方向が、水の流れの方向に沿うように、第１軸１１の延在方向を含む平面内で、発電機部２に対して相対的に回転させる場合、流路４を流れる水の水位が低く、翼１２の一部が水面から露出していたとしても、全長の長い異物の除去を効率的に行うことができる。 In the hydraulic power generation apparatus according to the first embodiment, the rotation direction of the blade 12 when the drive unit 3 approaches the first shaft 11 closest to the bottom surface 41 of the flow path 4 follows the direction of water flow. When rotating relative to the generator unit 2 within a plane including the extending direction of the first shaft 11, the water level of the water flowing through the flow path 4 is low, and a part of the blade 12 is exposed from the water surface. Even so, it is possible to efficiently remove foreign substances having a long overall length.
　第１実施形態に係る水力発電装置において、駆動部３が、第１軸１１を、流路４の底面４１に最も近づく際の翼１２の回転方向が、水の流れの方向に逆行するように、第１軸１１の延在方向を含む平面内で、発電機部２に対して相対的に回転させる場合、異物に作用する水圧を高めることができるため、例えば異物が固形状のものであっても、効率的に除去を行うことができる。 In the hydroelectric generator according to the first embodiment, the rotation direction of the blade 12 when the drive unit 3 approaches the first shaft 11 closest to the bottom surface 41 of the flow path 4 is opposite to the direction of water flow. When rotating relative to the generator unit 2 in a plane including the extending direction of the first shaft 11, the water pressure acting on the foreign matter can be increased. For example, the foreign matter is solid. However, the removal can be performed efficiently.
　（第２実施形態）
　以下に、第２実施形態に係る水力発電装置の構成について説明する。なお、以下においては、第１実施形態に係る水力発電装置の構成と異なる点について主に説明し、重複する説明は繰り返さない。 (Second Embodiment)
Below, the structure of the hydraulic power unit which concerns on 2nd Embodiment is demonstrated. In the following, differences from the configuration of the hydraulic power generation apparatus according to the first embodiment will be mainly described, and overlapping description will not be repeated.
　図９は、第２実施形態に係る水力発電装置の断面図である。図１０は、図９のＸ－Ｘにおける断面図である。図９及び図１０に示すように、第２実施形態に係る水力発電装置は、水車１と、発電機部２と、駆動部３とを有している。水車１は、第１軸１１と翼１２とを有している。発電機部２は、発電機台２１と、軸受ハウジング２２と、発電機２３と、カバー２４とを有している。駆動部３は、支柱３１と、ストッパ３２と、ギアボックス３３とを有している。これらの点において、第２実施形態に係る水力発電装置の構成は、第１実施形態に係る水力発電装置の構成と共通している。 FIG. 9 is a cross-sectional view of the hydroelectric generator according to the second embodiment. 10 is a cross-sectional view taken along the line XX of FIG. As shown in FIGS. 9 and 10, the hydroelectric generator according to the second embodiment includes a water turbine 1, a generator unit 2, and a drive unit 3. The water turbine 1 has a first shaft 11 and a blade 12. The generator unit 2 includes a generator stand 21, a bearing housing 22, a generator 23, and a cover 24. The drive unit 3 includes a column 31, a stopper 32, and a gear box 33. In these respects, the configuration of the hydroelectric generator according to the second embodiment is common to the configuration of the hydroelectric generator according to the first embodiment.
　第２実施形態に係る水力発電装置においては、駆動部３は、逆回転抑止部３７を有している。この点において、第２実施形態に係る水力発電装置の構成は、第１実施形態に係る水力発電装置の構成と異なっている。 In the hydroelectric generator according to the second embodiment, the drive unit 3 includes a reverse rotation suppression unit 37. In this respect, the configuration of the hydroelectric generator according to the second embodiment is different from the configuration of the hydroelectric generator according to the first embodiment.
　逆回転抑止部３７は、貫通穴２２ａと対向する支柱３１の外周面上に取り付けられている。逆回転抑止部３７は、例えばカム式ワンウェイクラッチである。但し、逆回転抑止部３７は、これに限られるものではなく、支柱３１の中心軸３１ｃ周りの回転を一方向において許容し、他方向において抑止するものであればよい。 The reverse rotation suppression part 37 is attached on the outer peripheral surface of the support column 31 facing the through hole 22a. The reverse rotation suppression unit 37 is, for example, a cam type one-way clutch. However, the reverse rotation suppression unit 37 is not limited to this, and may be any unit that allows rotation around the central axis 31c of the support column 31 in one direction and suppresses it in the other direction.
　逆回転抑止部３７の内周面には、溝３７ａが設けられている。溝３７ａは、底面３７ｂと、第１側面３７ｃと、第１側面３７ｃに対向する第２側面３７ｄとを有している。底面３７ｂは、逆回転抑止部３７の中心側に向いている面である。第１側面３７ｃ及び第２側面３７ｄは、底面３７ｂに連なっている。第１側面３７ｃの高さは、第２側面３７ｄの高さよりも小さくなっている。すなわち、底面３７ｂは、溝３７ａの深さが第１側面３７ｃ側から第２側面３７ｄ側に向かうにつれて深くなるように傾斜している。 A groove 37 a is provided on the inner peripheral surface of the reverse rotation inhibiting portion 37. The groove 37a has a bottom surface 37b, a first side surface 37c, and a second side surface 37d that faces the first side surface 37c. The bottom surface 37 b is a surface facing the center side of the reverse rotation suppression unit 37. The first side surface 37c and the second side surface 37d are continuous with the bottom surface 37b. The height of the first side surface 37c is smaller than the height of the second side surface 37d. That is, the bottom surface 37b is inclined so that the depth of the groove 37a becomes deeper from the first side surface 37c side toward the second side surface 37d side.
　逆回転抑止部３７は、ころ３７ｅとスプリング３７ｆとを有している。ころ３７ｅは、底面３７ｂ及び支柱３１の外周面に接触するように溝３７ａ内に配置されている。スプリング３７ｆは、一方端が第２側面３７ｄに接続され、他方端がころ３７ｅに接続されている。支柱３１が中心軸３１ｃ周りに、図１０中の矢印の方向（第２側面３７ｄから第１側面３７ｃに向かう方向）に回転する際に、ころ３７ｅは、当該回転により、第１側面３７ｃ側に移動する。その結果、中心軸３１ｃ周りの回転に伴う支柱３１と逆回転抑止部３７との間の抵抗が大きくなる。 The reverse rotation suppression unit 37 has rollers 37e and springs 37f. The roller 37e is disposed in the groove 37a so as to contact the bottom surface 37b and the outer peripheral surface of the column 31. The spring 37f has one end connected to the second side surface 37d and the other end connected to the roller 37e. When the support column 31 rotates around the central axis 31c in the direction of the arrow in FIG. 10 (the direction from the second side surface 37d toward the first side surface 37c), the roller 37e moves toward the first side surface 37c side by the rotation. Moving. As a result, the resistance between the column 31 and the reverse rotation suppression unit 37 accompanying the rotation around the central axis 31c increases.
　他方、支柱３１が中心軸３１ｃ周りに、図１０中の矢印の方向とは反対方向に回転する際、ころ３７ｅは、当該回転により、第２側面３７ｄ側に移動する。その結果、中心軸３１ｃ周りの回転に伴う支柱３１と逆回転抑止部３７との間の抵抗が小さくなる。 On the other hand, when the column 31 rotates around the central axis 31c in the direction opposite to the direction of the arrow in FIG. 10, the roller 37e moves to the second side surface 37d side by the rotation. As a result, the resistance between the support column 31 and the reverse rotation suppression unit 37 associated with the rotation around the central axis 31c is reduced.
　このようして、逆回転抑止部３７は、支柱３１の中心軸３１ｃ周りの回転を、一方向において許容し、他方向において抑止する。すなわち、逆回転抑止部３７は、第１軸１１の延在方向を含む平面内での発電機部２に対する第１軸１１の相対的な回転を、一方向において許容し、他方向において抑止する。 Thus, the reverse rotation suppression unit 37 allows rotation around the central axis 31c of the support column 31 in one direction and suppresses it in the other direction. That is, the reverse rotation suppression unit 37 allows relative rotation of the first shaft 11 with respect to the generator unit 2 in a plane including the extending direction of the first shaft 11 in one direction and suppresses in the other direction. .
　以下に、第２実施形態に係る水力発電装置の効果について説明する。
　上記のとおり、逆回転抑止部３７は、第１軸１１の延在方向を含む平面内での発電機部２に対する第１軸１１の相対的な回転を、一方向において許容し、他方向において抑止することができるため、流路４内の水の流れに逆らって第１軸１１を段階的に回転させることができる。そのため、この場合には、第１軸１１を回転させる作業の安全性を向上させることができる。 Below, the effect of the hydroelectric generator which concerns on 2nd Embodiment is demonstrated.
As described above, the reverse rotation suppression unit 37 allows the relative rotation of the first shaft 11 with respect to the generator unit 2 in a plane including the extending direction of the first shaft 11 in one direction, and in the other direction. Since it can suppress, the 1st axis | shaft 11 can be rotated stepwise against the flow of the water in the flow path 4. FIG. Therefore, in this case, the safety of the work of rotating the first shaft 11 can be improved.
　以上のように本発明の実施形態について説明を行ったが、上述の実施形態を様々に変形することも可能である。また、本発明の範囲は、上述の実施形態に限定されるものではない。本発明の範囲は、請求の範囲によって示され、請求の範囲と均等の意味及び範囲内での全ての変更を含むことが意図される。 Although the embodiment of the present invention has been described above, the above-described embodiment can be variously modified. Further, the scope of the present invention is not limited to the above-described embodiment. The scope of the present invention is defined by the terms of the claims, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.
　上記の各実施形態は、水力発電装置に特に有利に適用される。 Each embodiment described above is particularly advantageously applied to a hydroelectric power generation apparatus.
　１　水車、１１　第１軸、１１ａ　中心軸、１２　翼、２　発電機部、２１　発電機台、２１ａ　第１面、２１ｂ　第２面、２１ｃ　軸穴、２１ｄ，２１ｅ，２１ｆ，２１ｇ　ピン穴、２２　軸受ハウジング、２２ａ　貫通穴、２３　発電機、２３ａ　発電機本体、２３ｂ　第２軸、２４　カバー、３　駆動部、３１　支柱、３１ａ　第１端、３１ｂ　第２端、３１ｃ　中心軸、３１ｄ　フランジ、３１ｅ　ピン穴、３２　ストッパ、３３　ギアボックス、３３ａ　第１はすば歯車、３３ｂ　第２はすば歯車、３４，３５，３６　ベアリング、３７　逆回転抑止部、３７ａ　溝、３７ｂ　底面、３７ｃ　第１側面、３７ｄ　第２側面、３７ｅ　ころ、３７ｆ　スプリング、４　流路、４１　底面、４２　第１側面、４３　第２側面、４４　上面、５　梁、Ｌ　距離、Ｒ　半径。 1 water wheel, 11 first shaft, 11a central shaft, 12 blades, 2 generator section, 21 generator stand, 21a first surface, 21b second surface, 21c shaft hole, 21d, 21e, 21f, 21g pin hole, 22 Bearing housing, 22a through hole, 23 generator, 23a generator body, 23b second shaft, 24 cover, 3 drive unit, 31 strut, 31a first end, 31b second end, 31c central shaft, 31d flange, 31e pin Hole, 32 stopper, 33 gear box, 33a first helical gear, 33b second helical gear, 34, 35, 36 bearing, 37 reverse rotation restraining part, 37a groove, 37b bottom, 37c first side, 37d 2nd side, 37e roller, 37f spring, 4 channels, 41 bottom, 42 1st side, 43 2nd side, 44 Surface, 5 beams, L the distance, R the radius.

Claims (8)

  1. 　第１軸と、前記第１軸に取り付けられ、水が流れる流路内に配置され、かつ前記水によって前記第１軸を前記第１軸の中心軸周りに回転させる翼とを有する水車と、
    　第２軸を含み、前記第１軸から前記第２軸に伝達される回転により発電を行う発電機を有する発電機部と、
    　前記第１軸を、前記第１軸の延在方向を含む平面内で、前記発電機部に対して相対的に回転させる駆動部とを備える、水力発電装置。     A water turbine having a first shaft, a blade attached to the first shaft, disposed in a flow path through which water flows, and rotating the first shaft around a central axis of the first shaft by the water;
    A generator unit including a second shaft, and having a generator that generates power by rotation transmitted from the first shaft to the second shaft;
    A hydroelectric generator comprising: a drive unit configured to rotate the first shaft relative to the generator unit within a plane including an extending direction of the first shaft.
  2. 　前記駆動部は、前記第１軸を、前記第１軸の延在方向を含む平面内で、前記発電機部に対して相対的に３６０°回転可能に構成されている、請求項１に記載の水力発電装置。 The said drive part is a structure which can be rotated 360 degrees relatively with respect to the said generator part within the plane containing the extension direction of the said 1st axis | shaft. Hydroelectric generator.
  3. 　前記駆動部は、前記水の流れの方向と前記第１軸の延在方向とが平行となる位置において、前記第１軸の延在方向を含む平面内での前記発電機部に対する前記第１軸の相対的な回転を停止させるストッパを有する、請求項１又は２に記載の水力発電装置。 The drive unit is configured such that the first relative to the generator unit in a plane including the extending direction of the first axis at a position where the direction of the water flow and the extending direction of the first axis are parallel to each other. The hydroelectric generator according to claim 1 or 2, further comprising a stopper that stops relative rotation of the shaft.
  4. 　前記駆動部は、前記水の流れの方向と前記第１軸の延在方向とが直交する位置において、前記第１軸の延在方向を含む平面内での前記発電機部に対する前記第１軸の相対的な回転を停止させるストッパを有する、請求項１又は２に記載の水力発電装置。 The drive unit has the first axis with respect to the generator unit in a plane including the extending direction of the first axis at a position where the direction of the water flow and the extending direction of the first axis are orthogonal to each other. The hydroelectric generator according to claim 1, further comprising a stopper that stops relative rotation of the hydroelectric generator.
  5. 　前記駆動部は、前記第１軸の中心軸周りの回転を停止させることなく、前記第１軸の延在方向を含む平面内で、前記第１軸を前記発電機部に対して相対的に回転させる、請求項１～４のいずれか１項に記載の水力発電装置。 The drive unit moves the first shaft relative to the generator unit within a plane including the extending direction of the first shaft without stopping rotation around the central axis of the first shaft. The hydroelectric power generator according to any one of claims 1 to 4, wherein the hydroelectric power generator is rotated.
  6. 　前記駆動部は、前記第１軸の延在方向を含む平面内での前記発電機部に対する前記第１軸の相対的な回転を、一方向において許容し、他方向において抑止する逆回転抑止部を有する、請求項１～５のいずれか１項に記載の水力発電装置。 The drive unit allows a relative rotation of the first shaft with respect to the generator unit in a plane including the extending direction of the first shaft in one direction and a reverse rotation suppression unit that suppresses the rotation in the other direction. The hydroelectric power generator according to any one of claims 1 to 5, comprising:
  7. 　前記駆動部は、前記流路の底に最も近づく際の前記翼の回転方向が、前記水の流れの方向と逆行するように、前記第１軸を、前記第１軸の延在方向を含む平面内で、前記発電機部に対して相対的に回転させる、請求項１～６のいずれか１項に記載の水力発電装置。 The drive unit includes the first axis and the extending direction of the first axis so that the rotation direction of the blade when approaching the bottom of the flow path is opposite to the direction of the water flow. The hydroelectric generator according to any one of claims 1 to 6, wherein the hydroelectric generator is rotated relative to the generator section in a plane.
  8. 　前記駆動部は、前記流路の底面に最も近づく際の前記翼の回転方向が、前記水の流れの方向に沿うように、前記第１軸を、前記第１軸の延在方向を含む平面内で、前記発電機部に対して相対的に回転させる、請求項１～６のいずれか１項に記載の水力発電装置。 The driving unit is a plane including the first axis and the extending direction of the first axis so that the rotation direction of the blades when approaching the bottom surface of the flow path is along the direction of the water flow. The hydroelectric generator according to any one of claims 1 to 6, wherein the hydroelectric generator is rotated relative to the generator section.
PCT/JP2018/013149 2017-04-14 2018-03-29 Hydroelectric power generating device WO2018190136A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007170239A (en) * 2005-12-21 2007-07-05 Shinko Electric Co Ltd Hydraulic power system
US7525212B1 (en) * 2005-06-20 2009-04-28 Chris S Catlin Ocean power harvester
JP2013170547A (en) * 2012-02-22 2013-09-02 Toshiba Corp Floating wreckage removal device, and underwater device
JP2013241841A (en) * 2012-05-17 2013-12-05 Kosumosu Enterp:Kk Hydraulic power generation device and installation method thereof
WO2014122731A1 (en) * 2013-02-05 2014-08-14 株式会社音力発電 Power generation system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7525212B1 (en) * 2005-06-20 2009-04-28 Chris S Catlin Ocean power harvester
JP2007170239A (en) * 2005-12-21 2007-07-05 Shinko Electric Co Ltd Hydraulic power system
JP2013170547A (en) * 2012-02-22 2013-09-02 Toshiba Corp Floating wreckage removal device, and underwater device
JP2013241841A (en) * 2012-05-17 2013-12-05 Kosumosu Enterp:Kk Hydraulic power generation device and installation method thereof
WO2014122731A1 (en) * 2013-02-05 2014-08-14 株式会社音力発電 Power generation system

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