EP3921538A1 - Hydrolienne - Google Patents
HydrolienneInfo
- Publication number
- EP3921538A1 EP3921538A1 EP20705445.3A EP20705445A EP3921538A1 EP 3921538 A1 EP3921538 A1 EP 3921538A1 EP 20705445 A EP20705445 A EP 20705445A EP 3921538 A1 EP3921538 A1 EP 3921538A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- turbine
- tidal turbine
- chain
- generator
- tidal
- 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.)
- Pending
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
- 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"
- F03B17/062—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction
- F03B17/063—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction the flow engaging parts having no movement relative to the rotor during its rotation
- F03B17/064—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction the flow engaging parts having no movement relative to the rotor during its rotation and a rotor of the endless-chain type
-
- 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"
- F03B17/062—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction
-
- 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
- F05B2240/00—Components
- F05B2240/90—Mounting on supporting structures or systems
- F05B2240/93—Mounting on supporting structures or systems on a structure floating on a liquid surface
- F05B2240/932—Mounting on supporting structures or systems on a structure floating on a liquid surface which is a catamaran-like structure
-
- 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
Definitions
- the present invention relates to the field of tidal turbines, in particular floating river tidal turbines, but not exclusively.
- Known tidal turbines generally include turbines whose axis is horizontal and parallel to the flow of water which drives the tidal turbine. These tidal turbines have a high draft and have a low efficiency in view of their size. They must therefore be used in sufficiently deep water.
- the electric generator is submerged, and arranged in the axis of the turbine, which makes maintenance difficult.
- the generator that such a turbine can drive is generally low power, typically 40 kVA.
- the aim of the invention is to provide a tidal turbine capable of being used in shallow water, and having improved efficiency compared to tidal turbines known from the prior art.
- a tidal turbine comprising:
- the tidal turbine comprises means for vertically adapting the position of said tidal turbine to the level of the water on which it is installed, these means preferably comprising two floats arranged on either side of the chain.
- the platform can also include a platform arranged above the chain.
- the platform can also form a catamaran with the floats.
- the at least one generator is advantageously fixed on the platform.
- the tidal turbine comprises four generators and four transmissions, each of the transmissions being disposed at a respective end of each of the axles, each transmission driving a respective generator.
- Each transmission can be a belt transmission.
- FIG.1 is a schematic three-quarter front perspective view of a tidal turbine according to the invention.
- FIG.2 is a schematic top view of the hydroliemia of Figure 1;
- FIG.3 is a schematic left view of the tidal turbine of Figure 1, in the direction III-III indicated in Figure 2;
- FIG.4 is a schematic front view of the tidal turbine of Figure 1, in direction IV-IV shown in Figure 2;
- FIG.5 is a schematic top view of a first mooring mode for the tidal turbine of Figure 1;
- FIG.6 is a schematic front view of a second mooring mode for the tidal turbine of Figure 1;
- FIG.7 is a schematic top view of a third mode of mooring for the tidal turbine of Figure 1.
- Figure 1 illustrates a tidal turbine 1 according to the invention.
- This tidal turbine is substantially symmetrical relative to a vertical longitudinal plane PL It comprises two floats 2, an endless chain 3 of buckets 4 and electric generators 6. It further comprises a horizontal platform 7.
- the floats 2 are of elongated shape longitudinally, parallel to one another, on either side of the chain 3.
- the platform 7 is fixed to the floats 2, above the chain 3, by means of uprights 8.
- the uprights 8 extend upwards from the floats 2.
- the tidal turbine thus has the shape of a catamaran.
- the chain is mounted on two axles 9, mutually parallel and substantially in the same horizontal plane.
- a first axle is mounted around a front transverse axis X9A; the second axle is mounted around an X9R rear transverse axle.
- the axles are carried by the floats, in the vicinity of the waterline 1 1.
- the chain 3 is mounted on the axles so that the buckets can have the following closed path:
- Transmissions 12 are mounted between the axles 9 and the electric generators 6.
- the transmissions are belt drives.
- Each transmission is provided to transmit the rotational movement of an axle to a respective generator 6.
- Each transmission comprises a primary pulley 13, mounted integral in rotation with the corresponding axle, a secondary pulley 14, mounted integral in rotation with an input shaft 15 of the corresponding generator and a belt 16, mounted in engagement with the two pulleys.
- the generators 6 are fixed on the platform 7.
- the cups 4 are identical to each other. They have an oblong opening 20, elongated horizontally between two horizontal rectilinear edges 21.
- the buckets are concave and arranged so that they are open forward when moving back and forth, below the waterline.
- each bucket is directly articulated with the two neighboring buckets, so that they are integral with each other.
- two neighboring buckets are articulated around a horizontal and transverse axis, this axis being carried by each of the two buckets.
- Each float 2 has, at the front, a bevelled part 22, so that the parts of the floats move closer to each other when traversed back and forth.
- the tidal turbine is designed to be arranged along the water, in a water flow F, for example along a river, a canal or in a sea current. It is arranged so that the front is directed towards the upstream of the flow and the rear towards the downstream of the flow.
- the bevelled part 22 of the floats makes it possible to concentrate part of the flow F in the direction of the buckets.
- each float can include conduits 24 (shown in broken lines on the left float) for taking water from the flow F, upstream of the chain 3, and releasing it further. downstream, to supercharge buckets which are masked by buckets further upstream.
- FIG. 5 illustrates a tidal turbine according to the invention, moored to the pier 31 of a bridge.
- FIG. 6 illustrates the hydroelectric plant mounted in a channel 32, the water level N of which can vary. In this mode, the mooring is constituted by a supporting structure 33.
- This structure 33 comprises two vertical uprights 34 and rods 38.
- Each rod 38 connects a respective upright 34 with the float 2 closest to this upright.
- One end of the rod is articulated with the upright; an opposite end is hinged with the float.
- Each upright 34 is mounted to slide vertically in a respective dock 37.
- the sliding of the sliding amounts in the quay makes it possible to absorb a variation in the level N of the water over a large amplitude and / or a long period, for example over a day or more.
- the articulated rods allow faster variations, such as a swell, to be absorbed. They also make it possible to react quickly to a passage of a person on the platform 7.
- Figure 7 illustrates the mooring of tidal turbine 1 along a quay 7. It is held there by hawsers 41 attached to bollards 42.
- the length L1 of the tidal turbine is about 6 to 8 meters, its width is about 3 to 5 meters and the draft is about 50 centimeters.
- Each generator is a 150 kVA generator, so in the example shown the tidal turbine has a production capacity of 600 kVA.
- a tidal turbine can be attached to a mooring, in particular in a tidal zone, so that it can change orientation depending on the direction of flow to which it is subjected.
- generators there may be a different number of generators. For example, we can have a single high power generator. We can also have eight, two per transmission, lower power, less expensive, and can be more easily replaced without permanently affecting electricity production.
- a tidal turbine according to the invention may not include floats and be supported directly on one or on both docks of the channel.
- the floats like the rods and the uprights, constitute means for vertically adapting the position of the tidal turbine to the level of the water course on which it is installed.
- a tidal turbine according to the invention is particularly advantageous. Indeed :
- axles allow to drive several generators, optimally four generators, as previously described;
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1901273A FR3092627B1 (fr) | 2019-02-08 | 2019-02-08 | Hydrolienne. |
PCT/FR2020/050126 WO2020161411A1 (fr) | 2019-02-08 | 2020-01-28 | Hydrolienne |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3921538A1 true EP3921538A1 (fr) | 2021-12-15 |
Family
ID=66776596
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20705445.3A Pending EP3921538A1 (fr) | 2019-02-08 | 2020-01-28 | Hydrolienne |
Country Status (4)
Country | Link |
---|---|
US (1) | US20220090575A1 (fr) |
EP (1) | EP3921538A1 (fr) |
FR (1) | FR3092627B1 (fr) |
WO (1) | WO2020161411A1 (fr) |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1757894A (en) * | 1927-09-27 | 1930-05-06 | Zvirblis Antanas Janas | Current motor |
US2133023A (en) * | 1935-08-16 | 1938-10-11 | Jabez G Gholston | Current motor |
US4352990A (en) * | 1981-03-12 | 1982-10-05 | Aucoin Jr Ano J | Water powered electric generator |
US7063579B2 (en) * | 2004-07-22 | 2006-06-20 | Joseph Voves | Method and apparatus for retrieving energy from a flowing stream of water |
US8129855B1 (en) * | 2007-12-02 | 2012-03-06 | Lucas Tong | Portable turbine systems |
DE202008010396U1 (de) * | 2008-07-29 | 2009-12-10 | Krauss, Gunter | Strömungsenergieanlage |
WO2010150406A1 (fr) * | 2009-06-26 | 2010-12-29 | 株式会社竹内製作所 | Dispositif de génération de puissance utilisant l'eau courante |
US8786125B2 (en) * | 2011-04-12 | 2014-07-22 | Kim Christensen | System, method and apparatus for capturing kinetic energy |
WO2012164555A1 (fr) * | 2011-05-29 | 2012-12-06 | Tzach Harari | Dispositif de conversion de l'énergie d'un fluide |
US10560043B2 (en) * | 2014-11-13 | 2020-02-11 | Bruno BERGMAN | Floating device generator |
US10947956B2 (en) * | 2018-09-18 | 2021-03-16 | Differential Dynamics Corporation | Expandable power marine hydrokinetic turbines, pumps, compressors and transmissions |
US20190136822A1 (en) * | 2016-06-01 | 2019-05-09 | Robert L. Huebner | Pontoon System for Producing Useful Work |
US11008998B2 (en) * | 2016-10-27 | 2021-05-18 | Upravljanje Kaoticnim Sustavima d.o.o. | Floating screw turbines device |
WO2020185564A1 (fr) * | 2019-03-08 | 2020-09-17 | Big Moon Power, Inc. | Systèmes et procédés de production d'énergie hydro-électrique |
-
2019
- 2019-02-08 FR FR1901273A patent/FR3092627B1/fr active Active
-
2020
- 2020-01-28 EP EP20705445.3A patent/EP3921538A1/fr active Pending
- 2020-01-28 US US17/429,114 patent/US20220090575A1/en not_active Abandoned
- 2020-01-28 WO PCT/FR2020/050126 patent/WO2020161411A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
FR3092627A1 (fr) | 2020-08-14 |
FR3092627B1 (fr) | 2022-12-16 |
WO2020161411A1 (fr) | 2020-08-13 |
US20220090575A1 (en) | 2022-03-24 |
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Legal Events
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Effective date: 20210818 |
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RAV | Requested validation state of the european patent: fee paid |
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