WO2019176782A1 - Dispositif de production d'énergie hydraulique - Google Patents

Dispositif de production d'énergie hydraulique Download PDF

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Publication number
WO2019176782A1
WO2019176782A1 PCT/JP2019/009386 JP2019009386W WO2019176782A1 WO 2019176782 A1 WO2019176782 A1 WO 2019176782A1 JP 2019009386 W JP2019009386 W JP 2019009386W WO 2019176782 A1 WO2019176782 A1 WO 2019176782A1
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WO
WIPO (PCT)
Prior art keywords
water
tunnel
duct
slope
section
Prior art date
Application number
PCT/JP2019/009386
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English (en)
Japanese (ja)
Inventor
鈴木　政彦
Original Assignee
Ntn株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ntn株式会社 filed Critical Ntn株式会社
Publication of WO2019176782A1 publication Critical patent/WO2019176782A1/fr

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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
    • F03B11/02—Casings
    • 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
    • F03B7/00—Water wheels
    • 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 is arranged in a water channel, and even if the water depth is shallow, the water flow entering the duct is raised by a damming material, and a water turbine is disposed on a rear slope that slopes down to the rear of the damming material, thereby increasing the speed.
  • the present invention relates to a hydroelectric power generation apparatus capable of generating power efficiently by a water flow and a water pressure caused by a step.
  • a rotor of a drag type blade is arranged at the lower part of an arm pivotally supported at the upper part, and the rotor is moved up and down as the water surface moves up and down.
  • the entire blade cannot receive the water flow, and even if it receives the water flow only at the lower part of the blade, the rotational torque is not increased, and the power generation efficiency is extremely lowered.
  • the preferred technique for solving this problem is not found because there are few examples of using a propeller rotor in a water turbine.
  • a damming material for damming the water flow is provided at the inner front part of the duct equipped with the propeller rotor, and the water flow passing through the upper surface of the damming material is introduced into the tunnel where the rear part descends,
  • An object of the present invention is to provide a hydroelectric power generation apparatus in which a water flow having a high water pressure is applied to a propeller rotor at the rear of a duct so that efficient power generation is performed.
  • the present invention has taken the following technical means in order to solve the above problems.
  • a damming material that also serves as a bottom plate is arranged in the tunnel part. From the front end to the rear part, the front slope consisting of a steep rising arc surface rises at least higher than the rotation radius of the blade, and the rear slope consists of an arc surface gradually descending from the highest part to the rear end part,
  • the tunnel section has a smaller drainage port diameter than the water inlet, and the propeller rotor in the water turbine unit is placed at the rear of the rear slope so that it faces the running water.
  • a hydroelectric generator that rotates the propeller rotor by the flowing water.
  • the rotor shaft is parallel to the rear slope of the tunnel portion, and the tip of the blade fixed to the peripheral surface of the hub fixed to the rotor shaft is inclined forward toward the front of the tunnel portion.
  • the hydroelectric generator according to any one of (1) to (3).
  • a damming material that also serves as a bottom plate is disposed at the bottom of the tunnel portion of the duct, and the longitudinal side shape of the damming material is steep from the front end to the rear part.
  • the front slope consisting of the rising arc curved surface is a rear slope consisting of an arc curved surface that rises higher than the turning radius of the blade and gradually descends from the highest part to the rear end part, and the tunnel part is a drain outlet rather than a water inlet Therefore, even if the water depth in the water channel is shallow, the flowing water blocked by the front slope of the blocking material passes over this and flows into the tunnel portion.
  • the water flow entered here fills up the drain opening, so the water flow hits the entire surface of the propeller rotor even when the water depth is shallow and the water volume is small. Can be rotated. Further, since the tunnel portion is inclined rearward and downward, the water flow entering the tunnel portion is applied to the propeller rotor at the rear portion, and the rotational torque is increased. Since the propeller rotor of the water turbine housing in the water turbine unit is arranged on the rear slope of the tunnel portion so as to face the running water, the water flow passing at high speed through the tunnel portion is received orthogonally to the front of the propeller rotor and rotated. Increases efficiency. Since the water flow descending the tunnel portion over the highest part of the damming material becomes a high-speed flow due to the Coanda effect, the rotational efficiency of the propeller rotor receiving this increases.
  • the drain of the tunnel portion is lower than the height of the water inlet by the height of the highest part of the blocking material. A difference in water level will occur between them, and the rotational torque can be increased by applying water pressure to the propeller rotor by the weight of the flowing water.
  • the water turbine casing is arranged in parallel with the rear slope of the tunnel portion, so that the water flow passing through the tunnel portion hits the propeller rotor in the turbine casing in an orthogonal manner and the hydraulic power is evenly distributed. Can be applied.
  • the propeller rotor has the rotor shaft parallel to the rear slope of the tunnel portion, and the tip of the blade fixed to the peripheral surface of the hub fixed to the rotor shaft is inclined forward of the tunnel portion. Therefore, the water flow that passes through the tunnel portion and hits the blade and moves in the centrifugal direction hits the front surface of the forward inclined portion of the blade and rotates it in the rotation direction to increase the rotation efficiency. .
  • the seal material for closing the gap between the duct wall and the duct wall is disposed on the outer front part of the duct via the hinge, the duct wall is disposed between the duct wall and the duct. Even when a gap is generated, by opening and closing the sealing material via the hinge, the gap can be easily closed and a sufficient amount of water flow can be introduced into the duct.
  • the weight portion is formed at the front lower portion of the duct damming material, the weight is filled with a heavy object such as a stone, thereby making the duct into the water channel. Can be fixed.
  • Example 1 of the hydroelectric generator of this invention It is a center vertical side view of the hydroelectric generator of FIG. It is a front view of the hydroelectric generator of FIG. It is a rear view of the hydroelectric generator of FIG.
  • the duct 2 of the hydroelectric generator 1 of the present invention is disposed in contact with the bottom of the water channel R.
  • the width of the front-side front portion facing the upstream side is set to a width that matches the width of the water channel R, the rear portion is narrower than the width of the front portion, and slightly larger than the diameter of the propeller rotor 9.
  • the material of the duct 2 is metal, FRP, or the like.
  • the front portion of the upper surface of the duct 2 is formed with a cutout portion 2B that enters from the front end to the center rear portion, and the rear end is the highest portion 2C in the tunnel portion 2E.
  • Sealing materials 2D and 2D for closing a gap between the wall surface of the water channel R and the side surface of the duct 2 are fixed to the front outer surface of the duct 2.
  • the sealing material 2D can correspond to the size of the gap if, for example, a wide resin plate is fixed by a hinge.
  • the rear part of the duct 2 includes a turbine casing 7 having a propeller rotor 9, a suspension pipe 6 supported by the upper plate 2 ⁇ / b> A of the duct 2, and a generator 5 linked to the suspension pipe 6.
  • a water turbine unit 3 is disposed, and a generator 5 is disposed and fixed on a support member 4 that is installed between both sides of the water channel R.
  • the tip of the rotor shaft 8 is fixed to the lower part in the tunnel portion 2E of the suspension pipe 6 suspended from the generator 5, is supported in the water turbine casing 7, and protrudes rearwardly outside.
  • a propeller rotor 9 is mounted.
  • the front end of the rotor shaft 8 and the lower end of the transmission shaft 6A in the suspension tube 6 are linked so as to be able to be transmitted by a bevel gear (not shown).
  • the water turbine casing 7 is set to be parallel to the rear slope 11C of the blocking material 11.
  • a plurality of lift-type blades 10 are fixed to the peripheral surface of the hub 9A with their tips directed in the radial direction.
  • a tip portion of each blade 10 is a forward inclined portion 10A that is inclined toward the front side of the front side of the tunnel portion 2E.
  • the propeller rotor 9 may be disposed at the front portion of the water turbine casing 7.
  • the longitudinal side surface of the duct 2 is a front slope 11A having a rising arc curved surface in a steep slope from the front end to the rear portion of the weir 11 serving also as a bottom plate, and is the highest of the upper plate 2A.
  • the portion directly below the portion 2C is defined as the highest portion 11B, and the rear inclined surface 11C has an arc curved surface that gently falls toward the rear end edge.
  • the rear edge of the upper plate 2A of the tunnel portion 2E at the drain port 2F is slightly upward, and the flowing water that passes through the tunnel portion 2E under pressure is easy to escape backward.
  • the height of the highest part 11B in the dam member 11 is, for example, larger than the rotation radius of the blade 10. Further, the height from the upper surface of the blocking material 11 in the tunnel portion 2E to the upper plate 2A in the upper portion is formed so as to gradually decrease from the highest portion 2C to the rear drain port 2F. .
  • the water flow that has entered the tunnel portion 2E passes through the highest portion 11B of the blocking member 11 and at the same time becomes a high-speed flow due to the Coanda effect, and passes outside the drain port 2F while applying water pressure to the rear slope 11C by weight. Then, the propeller rotor 9 is efficiently rotated.
  • the height of the duct 2 is set higher than the width. This is because the height of the blocking member 11 is set higher than the rotation radius of the blade 10, but is appropriately changed depending on the width and depth of the water channel R.
  • the size of the drain port 2 ⁇ / b> F is smaller than the water inlet of the tunnel portion 2 ⁇ / b> E and is slightly larger than the diameter of the propeller rotor 9.
  • the water flow that has entered the tunnel portion 2E from the front of the water channel R passes through the drainage port 2F where the diameter is gradually reduced and the water level is low, and passes through the water pressure due to the weight. Increases torque.
  • the hydroelectric generator 1 is fixed in the water channel R by being anchored by the tether 12 or by any fixing means.
  • the flow can be suppressed by forming a weight portion 11D in the front lower portion of the dam member 11 in FIG. 2 and incorporating a heavy object such as a stone.
  • Tunnel part 2E has a wide front part and a high height.
  • the drain port 2F at the rear of the tunnel 2E is lower in height and narrower than the front, so even if the water depth in the water channel R becomes shallower, the propeller rotor at the rear of the tunnel 2E. Since the whole 9 is submerged and has a downward slope, the water pressure due to weight is applied to the propeller rotor 9, and the rotational efficiency and rotational torque are increased.
  • the water channel R increases, the water will flow over the upper plate 2A.
  • the water flow hitting the front slope 11A in the duct 2 is pressurized and ascends the front slope 11A, passes through the highest part 11B, becomes a high-speed flow due to the Coanda effect, and drains the rear slope 11C.
  • the propeller rotor 9 is efficiently rotated to generate power.
  • the blocking material 11 has a function of blocking the water flow in the water channel R and a difference in water level between the front portion and the rear portion in the tunnel portion 2E.
  • the tunnel portion 2E has a rear portion that is smaller in diameter than the front portion and inclined rearwardly to increase the water pressure to the drain port 2F, and efficiently supplies a small water flow in the water channel R to the propeller rotor 9. be able to.
  • the hydroelectric generator of the present invention uses the bottom plate of the duct as a blocking material, blocks the water flow in the water channel at the front slope, passes the inside of the tunnel from the highest part to the drain outlet at high speed, and rotates the rotor at the rear part. Even when the amount of water in the water channel is small, it can be used for hydroelectric power generation that allows efficient power generation.
  • Hydroelectric generator Duct 2A. Upper plate 2B. Notch 2C. Highest part 2D. Seal material 2E. Tunnel part 2F. Drain port 2G. Water inlet 3. Water wheel unit4. 4. Support material Generator 6. Hanging tube 6A. 6. Transmission shaft Waterwheel housing8. Rotor shaft 9. Propeller rotor 9A. Hub 10. Blade 10A. 10. forward inclined part Damping material 11A. Front slope 11B. Highest part 11C. Rear oblique portion 11D. Weight part 12. Tether

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Turbines (AREA)

Abstract

L'objectif de la présente invention est de fournir un dispositif de production d'énergie hydraulique qui est installé dans une voie d'eau et qui est configuré de telle sorte que, même s'il est placé dans de l'eau peu profonde, un écoulement d'eau qui entre dans un conduit est élevé par un matériau de retenue de façon à être fourni à une turbine à eau disposée au niveau d'une pente arrière vers le bas d'une section arrière du matériau de retenue, et en raison de l'écoulement d'eau qui est accéléré et de la pression d'eau qui est générée par une différence de niveau, une production d'énergie avec une bonne efficacité peut être réalisée. Un matériau de retenue (11) qui sert également de panneau inférieur est disposé dans un tunnel (2E) d'un conduit (2) qui est immergé dans une voie d'eau et qui est plus étroit au niveau d'une section arrière qu'au niveau d'une section avant dans une vue en plan. La forme de surface latérale de section transversale verticale du matériau de retenue (11) comprend : une pente avant (11A) qui est constituée par une surface d'arc à pente raide vers le haut depuis l'extrémité avant et légèrement vers la section arrière, et qui s'élève plus haut qu'au moins le rayon de rotation d'une aube (10); et une pente arrière (11C) qui est constituée par une surface d'arc principalement inclinée vers le bas à partir de la section la plus haute du matériau de retenue jusqu'à la section d'extrémité arrière. Dans le tunnel (2E), un orifice d'évacuation d'eau (2F) a un diamètre d'ouverture plus petit que celui d'un orifice d'introduction d'eau (2G), et un rotor d'hélice (9) d'une unité de turbine à eau est installé au niveau de la pente arrière (11C) de façon à faire face à l'écoulement d'eau. Le rotor d'hélice (9) est entraîné en rotation par l'écoulement d'eau qui s'écoule sur la section la plus élevée (11B) du matériau de retenue et vers le bas à travers le tunnel (2E).
PCT/JP2019/009386 2018-03-14 2019-03-08 Dispositif de production d'énergie hydraulique WO2019176782A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018046366A JP2019157776A (ja) 2018-03-14 2018-03-14 水力発電装置
JP2018-046366 2018-03-14

Publications (1)

Publication Number Publication Date
WO2019176782A1 true WO2019176782A1 (fr) 2019-09-19

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WO (1) WO2019176782A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57188779A (en) * 1981-05-14 1982-11-19 Keiichi Fukuchi Method and installation to obtain hydraulic motive power
CN202900519U (zh) * 2012-11-12 2013-04-24 白世修 锚船水力发电装置
WO2016147938A1 (fr) * 2015-03-13 2016-09-22 株式会社ベルシオン Dispositif de roue à eau

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57188779A (en) * 1981-05-14 1982-11-19 Keiichi Fukuchi Method and installation to obtain hydraulic motive power
CN202900519U (zh) * 2012-11-12 2013-04-24 白世修 锚船水力发电装置
WO2016147938A1 (fr) * 2015-03-13 2016-09-22 株式会社ベルシオン Dispositif de roue à eau

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Publication number Publication date
JP2019157776A (ja) 2019-09-19

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