EP2771568A1 - Pale de rotor pour une turbine hydraulique, en particulier pour une usine marémotrice, et procédé de fonctionnement de ladite pale de rotor - Google Patents

Pale de rotor pour une turbine hydraulique, en particulier pour une usine marémotrice, et procédé de fonctionnement de ladite pale de rotor

Info

Publication number
EP2771568A1
EP2771568A1 EP12748168.7A EP12748168A EP2771568A1 EP 2771568 A1 EP2771568 A1 EP 2771568A1 EP 12748168 A EP12748168 A EP 12748168A EP 2771568 A1 EP2771568 A1 EP 2771568A1
Authority
EP
European Patent Office
Prior art keywords
rotor blade
pressure
profile
blade according
membrane
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP12748168.7A
Other languages
German (de)
English (en)
Inventor
Harald Dorweiler
Norman Perner
Frank Biskup
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
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 Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP2771568A1 publication Critical patent/EP2771568A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F03B3/12—Blades; Blade-carrying rotors
    • F03B3/121—Blades, their form or construction
    • F03B3/123—Blades, their form or construction specially designed as adjustable blades, e.g. for Kaplan-type turbines
    • 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
    • F03B3/12—Blades; Blade-carrying rotors
    • F03B3/121—Blades, their form or construction
    • 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
    • F03B11/004—Valve arrangements
    • 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
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/26—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using tide energy
    • 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
    • F03B15/00—Controlling
    • F03B15/02—Controlling by varying liquid flow
    • F03B15/04—Controlling by varying liquid flow of turbines
    • F03B15/06—Regulating, i.e. acting automatically
    • F03B15/18—Regulating, i.e. acting automatically for safety purposes, e.g. preventing overspeed
    • 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
    • F03B3/12—Blades; Blade-carrying rotors
    • F03B3/14—Rotors having adjustable blades
    • F03B3/145—Mechanisms for adjusting the blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/10—Purpose of the control system
    • F05B2270/109—Purpose of the control system to prolong engine life
    • F05B2270/1095—Purpose of the control system to prolong engine life by limiting mechanical stresses
    • 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
    • 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
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
    • 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
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • Rotor blade for a water turbine in particular for a tidal power plant
  • the invention relates to a rotor blade for a water turbine, in particular for a tidal power station or a river hydropower plant, and a method for its operation.
  • Water flow in particular a tidal or ocean current, are known. Such plants can also be used for energy production in rivers, which can be dispensed with far-reaching hydraulic engineering measures to create dam structures.
  • These can be foundations for which a nacelle is supported by a tower against the bottom of the water. Alternatively, the system is provided with buoyancy so that it is buoyant, in which case an anchor system holds the nacelle with the water turbine in the operating position.
  • the system To generate energy from tides, the system must be adapted for a cyclic change of the direction of flow. Will on one
  • Rotor blades be provided with a bi-directional inflow profile.
  • lenticular blade cross sections or profiles are known with an S-stroke.
  • DE 10 2009 057 449 B3 discloses switchable overflow channels between the pressure and the suction side of the profile. These serve the effect of each To mitigate downstream profile part. Further describe
  • rotor blades are used for the simplified system design with torsionally rigidly articulated rotor blades and without a mechanism for carrying out a system pivot for safety reasons, which are designed to be too small for efficient operation under normal conditions.
  • the invention has for its object to provide a rotor blade for a water turbine and hereby executed operating method, the strong Load peaks withstand.
  • the rotor blade should have a high efficiency for the flow occurring under normal operating conditions.
  • the rotor blade should be suitable for freely flowing around water turbines and in particular for the energy from a bidirectional flow.
  • a rotor blade according to the invention has a plurality of overflow channels, at least over a partial section of the sheet extension, which produce a hydraulic connection between the suction side and the pressure side of the profile.
  • Overflow channels is associated with at least one valve device which is designed so that it is below a predetermined threshold load threshold
  • the limit load threshold is determined by a predetermined speed of the water turbine. Further preferred embodiments define the limit load threshold by a predetermined, due to the flow-induced back pressure on the water turbine or a predetermined pressure difference between the suction side and the pressure side of the profile. In this case, a valve device can be used, which works passively and automatically closes when reaching the threshold load threshold. For an alternative embodiment, reaching the limit load threshold of one
  • Control unit detects the sensory data, such as the
  • control unit outputs control signals to the valve device.
  • the transfer channels with the associated valve device serve as
  • Overload protection Accordingly, these are designed so that an open overflow channel the power coefficient and / or the thrust coefficient of the rotor blade reduced. Therefore, in terms of their number density and their cross-section in the open position, the overflow channels are designed so that the pressure difference between the suction and the pressure side is sufficiently reduced and the effect of the profile section with the overflow channels in the case of an open
  • Valve device is reduced so that the load on the rotor blade decreases. This leads to the necessity that a sufficient flow volume can be passed through the transfer ports, so not only no one
  • Another preferred measure for the effective reduction of the performance values and / or the thrust coefficients is to apply the overflow channels in such a way that the inputs and outputs of the overflow channels are applied to them
  • the overflow channels are preferably designed so that they obliquely relative to the
  • Plumb lines are set to the center line, so that the inflow into the
  • a rotor blade according to the invention can be designed for the middle load range and accordingly be dimensioned larger than a rotor blade without overload protection. This results in a substantial increase in efficiency of the entire system for operation under normal flow conditions.
  • Subregion of the profile before, with an arrangement in a blade near-point area is advantageous.
  • an accommodation of the overflow on a surface is preferred, which is smaller than one third of the total area of the rotor blade.
  • the overload protection works passively. Accordingly, the valve device switches on reaching the
  • valve means comprises a membrane which on the suction side of the profile to
  • Cover is arranged at least one overflow channel.
  • the membrane has at least one membrane opening which is arranged offset to an inlet and / or outlet opening of the associated overflow channel.
  • By lifting the membrane from the inlet opening and / or the outlet opening of the associated overflow channel creates a hydraulic connection between the pressure side and the suction side of the profile.
  • the opening of the valve device against the membrane voltage can passively by a pressure difference between the pressure and the suction side of the profile, which is sufficiently large in case of overload, caused.
  • a positioning cylinder mounted on the back side of the membrane can be used, which in the extended position lifts the membrane from the respective inlet and / or outlet opening of the overflow channel.
  • Such an actuating cylinder can be designed as an electrically operated unit.
  • a device with a solenoid coil comes into consideration.
  • the membrane can be mounted on the suction side and / or on the pressure side of the rotor blade profile.
  • the membrane is to be chosen so that it withstands the punctual loading by the actuator. In this case, embodiments are conceivable that
  • Sliding surface-forming element such as a PTFE film attached.
  • an actively switched valve device and an associated control device for determining the Limit load threshold provided.
  • the bundled overflow channels on the pressure side of the profile lead to one
  • suction-side collecting space on the suction side of the profile is a suction-side collecting space, in which the suction-side sections of the
  • Overflow channels are combined in some areas and can be switched via an associated central valve device. It is also the
  • the valve device for releasing or blocking an overflow channel can be driven electrically or hydraulically for an active embodiment.
  • the energy supply preferably follows via a non-contact, inductive system for power transmission in the region of the rotor hub.
  • a pressure medium in the transition between the fixed part of the system and the rotor can be effected by means of an annular channel.
  • the hydraulic pressure used for the operation of the adjusting device is arranged by one in the region of the circulating unit of the water turbine
  • Pressure generating device is derived.
  • the dynamic pressure acting on a part of the plant can be used to operate the adjusting elements of the
  • Valve device can be used.
  • Valve means used with a spool, which performs adjusting movements, which are directed substantially in the direction of the blade longitudinal axis.
  • the spool can be performed against the force of an elastic actuator in the open position.
  • the predetermined limit load threshold is determined by a limit for the speed for which the overload protection triggers.
  • Figure 1 shows a profile section for a rotor blade according to the invention with a
  • Overload protection which comprises a plurality of overflow channels with an associated valve device
  • Figure 2 shows a partial section of the profile of Figure 1, wherein the
  • Overload protection comprises a valve device with a tensioned by the transfer ports membrane.
  • FIG. 3 shows a further embodiment of the embodiment according to FIG. 2, wherein the membrane can be lifted by means of a setting cylinder.
  • Figure 4 shows an alternative embodiment based on a profile section of a
  • Part of a rotor blade according to the invention with a pressure-side collecting space and a suction-side collecting space and an intermediate central valve device.
  • Figure 5 shows an alternative embodiment with a valve device, a
  • Leaf longitudinal direction arranged control slide is assigned. shows in a partial sectional view of the rotor blade arranged in the blade longitudinal direction spool for the
  • FIG. 7 shows a plan view of a tidal power plant with a water turbine
  • the rotor blades comprise an overload protection according to the invention.
  • FIG. 7 shows, schematically simplified, a generic one
  • Power generation plant Shown is a tidal power plant 100 with a resting on the bottom of the water body 102 101. On this is based on a tower 103, which carries a nacelle with a rotating thereon, freely flowing around the water turbine 104, which is formed in horizontal rotor design.
  • the water turbine 104 comprises three rotor blades 1.1, 1.2, 1.3 whose vertices define a plane of rotation.
  • Each rotor blade 1.1, 1.2, 1.3 according to the invention comprises an overload protection 2.1, 2.2, 2.3, which is formed in the region of the respective blade tip.
  • Rotor blade 1.1, 1.2, 1.3 is in addition to the high efficiency therefore advantageous because in the relatively thin blade tip region, a rotor blade 1.1, 1.2, 1.3, in particular in cast or steel version, made of solid material, so overflow of the overload protection 2.1, 2.2, 2.3 simplified in terms of manufacturing technology Drilling can be performed.
  • An embodiment of the overload protection 2.1 is shown in FIG. Shown is a profile section along the section line A-A from Figure 7. Sketched is a bidirectionally flowable hydrodynamic profile 3, as
  • Flow v e ffi is the pressure side 11 above the center line 4 and the
  • valve device 12.1, 12.2 In order to establish an open and closed state of the overflow channels 6.1, 6.8, a valve device 12.1, 12.2 is used. In the present case this is realized by a membrane 7.1, 7.2, via the inlet or
  • Embodiment each cover two overflow 6.1, 6.8 in the region of the outlet.
  • the membranes 7.1, 7.2 comprise a plurality of membrane openings 8.1, 8.8, each offset from the outlet openings of the associated
  • Overflow 6.1, 6.8 are arranged so that under normal conditions, that is, in plant operation below the threshold load threshold, there is a sufficient sealing of the overflow 6.1, 6.8. Accordingly, the clamping, the choice of material of the membrane 7.1, 7.2 and the geometry of the Outlet opening matched to the forces acting during operation.
  • the membrane may consist of a fiber-reinforced material.
  • Profile contour on and the offset membrane openings 6.5, 6.8 have no overlaps with the outflow openings of the transfer channels 6.5, 6.8.
  • An opening of the transfer channels 6.5, 6.8 can occur only for a sufficiently large, opposite effective flow ⁇ ⁇ ⁇ .
  • Figure 2 shows a partial section of Figure 1 with the overflow 6.1, 6.2. These are spanned on the suction side 10 of the hydrodynamic profile 3 with the portion of the membrane 7.1 between the retaining webs 9.1 and 9.2.
  • the valve device 12.1 is in the open position. In the present case, this means that the section of the membrane 7.1 is raised relative to the profile ceiling 21 in the region of the outlet openings 18.1, 18.2 of the overflow channels 6.1, 6.2.
  • a flow path is arranged offset relative to the outlet openings 18.1, 18.2
  • Membrane openings 8.1, 8.2 made. This creates a hydraulic connection between the pressure side 11 and the suction side 10 of the hydrodynamic profile 3, which effects a pressure equalization which is such that the contribution to the coefficient of performance and / or thrust coefficient generated by this subregion of the hydrodynamic profile 3 decreases.
  • the hydraulic effect of the rotor is reduced.
  • Overload protection 2.1, 2.2, 2.3 thus arises in case of overload a water turbine whose effect corresponds to a rotor with a smaller radius.
  • the free cross section of the valve device 12.1 is dimensioned in the open position.
  • the transfer channels 6.1, 6.2 are so
  • Overflow 6.1, 6.2 are directed against the suction-side profile flow 14 and the pressure-side profile flow 15.
  • the resulting skew is directed so that the outflow 18.1 has a direction component counter to the suction-side Pro columströmung 14.
  • the desired outflow direction also contributes to the upstream offset of the associated membrane opening 8.1 with respect to the outlet opening 18.1 of the flow channel 6.1.
  • the backwards offset of the associated membrane opening 8.1 contributes to the upstream offset of the associated membrane opening 8.1 with respect to the outlet opening 18.1 of the flow channel 6.1.
  • the backwards offset of the associated membrane opening 8.1 contributes to the upstream offset of the associated membrane opening 8.1 with respect to the outlet opening 18.1 of the flow channel 6.1.
  • Profile flow is the geometry of the inlet openings 19.1, 19.2 of
  • a modified hydrodynamic profile results for the embodiment with a valve element 12.1, 12.2, which occupies a large area in the open position, in this case the diaphragm 7.1, 7.2.
  • the profile change is such that a stall occurs faster and thus the buoyancy effect is reduced even more effectively.
  • the embodiment sketched in FIG. 2 shows filters 20.1, 20.2 for covering the inlet openings 19.1, 19.2, which prevent the penetration of sediments into the overflow channels 6.1, 6.2.
  • the embodiment sketched in FIG. 2 shows filters 20.1, 20.2 for covering the inlet openings 19.1, 19.2, which prevent the penetration of sediments into the overflow channels 6.1, 6.2.
  • Diaphragm openings 8.1, 8.2 must be secured against ingress of foreign substances. This is not shown in detail.
  • an antifouling device is preferably associated with the overflow channels 6.1, 6.2 in order to counteract maritime growth.
  • a protective coating may be provided.
  • heating elements are used to maintain the transfer channels 6.1, 6.2 through regular heating cycles.
  • electrical heating elements can be used, which are fed in operating situations when the system generates power that can not be fed into the grid. Another measure to
  • Maintaining the continuity of the overflow 6.1, 6.2 is a vibrational excitation.
  • Overload protection 2.1, 2.2, 2.3 are brought into resonant vibrations or there are local vibration generator, in particular for the production of
  • FIG. 3 shows a further embodiment of the embodiment according to FIGS. 1 and 2 with a valve device 12.1, which comprises a membrane 7.1.
  • Limit load threshold can be raised. As a result, flushing of the overflow channels 6.1, 6.2 can be performed during normal operation. Furthermore, the functionality of the overload protection can be checked regularly.
  • the diaphragm 7.1, 7.2 used for the embodiment with an electric actuator must withstand the punctual loading by the actuating cylinder 23.
  • rigid elements can be used in the region of the support point of the adjusting cylinder 23 with expandable elements for forming the membrane 7.1.
  • membrane 7.1, 7.2, the membrane openings 8.1, 8.8 preferably reduced in the form of holes created.
  • FIG. 4 shows a design alternative, wherein the overload protection 2.1 comprises a central valve device 25.
  • This is preferably designed as an electric actuator with a control cylinder 23, which switches an overflow channel 6, which extends from a pressure-side collecting space 26 to a suction-side collecting space 27.
  • These collecting chambers are each covered with a perforated plate 28.1, 28.2, wherein the openings in the perforated plates 28.1, 28.2 have the above-explained inclined position with the bore angle ß.
  • Figure 5 shows a further embodiment of the invention with two central valve means 25.1, 25.2, the overflow 6.1 - 6.4 on the one hand and 6.5 - 6.8 to the other bundle.
  • the central valve devices 25.1, 25.2 comprise control valves 29.1, 29.2, which run essentially in the direction of the longitudinal axis of the rotor blade 1. In the present case, this is a perpendicular to the paper plane.
  • the function of the control slide is schematically simplified in Figure 2 sketched. Shown is a control slide 29, which is aligned in the axial direction substantially parallel to the longitudinal axis of the rotor blade 1.

Landscapes

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

Abstract

L'invention concerne une pale de rotor pour une turbine hydraulique présentant un profil hydrodynamique auquel sont associés un extrados et un intrados, ladite pale de rotor comprenant une pluralité de canaux de transfert qui sont réalisés dans le profil hydrodynamique, qui établissent une communication hydraulique entre l'extrados et l'intrados et auxquels un système de vanne respectif est associé. L'invention est caractérisée en ce que le système de vanne est fermé au-dessous d'un seuil de charge limite prédéfini pour la pale de rotor et est ouvert au-dessus du seuil de charge limite. Lorsque le système de vanne est en position ouverte, chaque canal de transfert réduit le coefficient de puissance et/ou le coefficient de poussée de la pale de rotor par rapport à la position fermée.
EP12748168.7A 2011-10-28 2012-08-11 Pale de rotor pour une turbine hydraulique, en particulier pour une usine marémotrice, et procédé de fonctionnement de ladite pale de rotor Withdrawn EP2771568A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011117176A DE102011117176A1 (de) 2011-10-28 2011-10-28 Rotorblatt für eine Wasserturbine, insbesondere für ein Gezeitenkraftwerk, und Verfahren für dessen Betrieb
PCT/EP2012/003445 WO2013060399A1 (fr) 2011-10-28 2012-08-11 Pale de rotor pour une turbine hydraulique, en particulier pour une usine marémotrice, et procédé de fonctionnement de ladite pale de rotor

Publications (1)

Publication Number Publication Date
EP2771568A1 true EP2771568A1 (fr) 2014-09-03

Family

ID=46690469

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12748168.7A Withdrawn EP2771568A1 (fr) 2011-10-28 2012-08-11 Pale de rotor pour une turbine hydraulique, en particulier pour une usine marémotrice, et procédé de fonctionnement de ladite pale de rotor

Country Status (7)

Country Link
US (1) US20150050146A1 (fr)
EP (1) EP2771568A1 (fr)
JP (1) JP2014530987A (fr)
KR (1) KR20140085561A (fr)
CA (1) CA2853693A1 (fr)
DE (1) DE102011117176A1 (fr)
WO (1) WO2013060399A1 (fr)

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JP6523857B2 (ja) * 2015-08-04 2019-06-05 株式会社東芝 ランナ及び水力機械
US11912395B2 (en) * 2016-09-07 2024-02-27 Attila NYIRI Propeller and propeller blade
US10519976B2 (en) * 2017-01-09 2019-12-31 Rolls-Royce Corporation Fluid diodes with ridges to control boundary layer in axial compressor stator vane
CN109441720B (zh) * 2018-12-21 2024-07-09 沈阳航空航天大学 一种薄膜声激励振动式垂直轴风力机叶片
CN109931200B (zh) * 2019-03-29 2021-08-17 重庆大学 一种垂直轴三流线型自动开合式水轮机
CA3156274A1 (fr) 2019-11-22 2021-08-26 Swati MAINI Turbines et composants, systemes et procedes associes
CN112412681A (zh) * 2020-10-26 2021-02-26 西安交通大学 一种水轮机叶片可伸缩的水力发电装置
CN114576075B (zh) * 2022-03-09 2023-04-11 清华大学 一种波浪发电装置的限幅保护方法、装置及电子设备

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US20150050146A1 (en) 2015-02-19
KR20140085561A (ko) 2014-07-07
DE102011117176A1 (de) 2013-05-02
CA2853693A1 (fr) 2013-05-02
JP2014530987A (ja) 2014-11-20
WO2013060399A1 (fr) 2013-05-02

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