EP0211055A1 - Installation d'exploitation de l'energie des vagues - Google Patents

Installation d'exploitation de l'energie des vagues

Info

Publication number
EP0211055A1
EP0211055A1 EP86901049A EP86901049A EP0211055A1 EP 0211055 A1 EP0211055 A1 EP 0211055A1 EP 86901049 A EP86901049 A EP 86901049A EP 86901049 A EP86901049 A EP 86901049A EP 0211055 A1 EP0211055 A1 EP 0211055A1
Authority
EP
European Patent Office
Prior art keywords
chamber
inflow
wave energy
outflow
wave
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Withdrawn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
EP86901049A
Other languages
German (de)
English (en)
Inventor
Dieter Bliesener
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0211055A1 publication Critical patent/EP0211055A1/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Withdrawn legal-status Critical Current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
    • 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
    • F03B13/14—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 wave energy
    • F03B13/141—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 wave energy with a static energy collector
    • F03B13/144—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 wave energy with a static energy collector which lifts water above sea level
    • F03B13/145—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 wave energy with a static energy collector which lifts water above sea level for immediate use in an energy converter
    • 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
    • F03B13/14—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 wave energy
    • F03B13/16—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 wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
    • 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 invention relates to a wave energy system with a floating body, which has an inflow chamber above an exhaust flow chamber, which are connected to one another via at least one hydropower machine and are provided with at least one inflow or outflow opening, which openings can be closed with a blocking element that opens only in one sighting.
  • the inflow chamber is an upwardly open channel in which the seawater entering from a passing wave crest via the inflow openings collects; because the blocking elements provided at the inflow openings prevent the water from flowing back into the sea when it is discharged pulling the wave crest, ie while the system is immersed in a wave valley.
  • the water then flows via the hydropower machine, which drives a generator, into the outflow chamber and from there through the outflow openings back into the sea.
  • the blocking elements on the outflow openings are designed such that they close when the water level rises, ie when a wave crest arrives.
  • the object of the invention is now to eliminate the disadvantages mentioned and to increase the energy yield of floating wave energy systems by using part of the dynamic pressure of the wave movement in the energy conversion.
  • the inflow chamber has an air-impermeable and preferably curved cover.
  • the blocking elements at the inflow openings are periodically pressed open by the water flowing up to the wave power plant, causing water to enter the inflow chamber covered in an airtight manner according to the invention, which compresses the air trapped in this chamber.
  • the blocking elements of the outflow chamber open , which are located in the area of a wave trough, so that water flows from the inflow to the outflow chamber through the hydraulic motor and drives it.
  • a wave energy system projects a part of the bottom wall of the inflow chamber laterally beyond the outflow chamber and has the inflow openings with the blocking element opening upwards. Due to this, according to the invention, horizontal arrangement of the blocking elements for the inflow openings on the underside of the inflow chamber, a build-up pressure is generated by the upwardly swinging ocean waves in front of the inflow openings, which keeps the pressure in the inflow chamber at low wave heights above the static pressure corresponding to the wave height and thus at All wave heights guaranteed a favorable efficiency of the hydropower machine.
  • this chamber has proven useful to use this chamber with at least one vent Provide opening that can be closed with a float valve in order to limit the volume of the air cushion according to the invention.
  • the blocking elements on the outflow chamber are designed as hanging flaps which can be pivoted about a horizontal axis, the surface of which faces away from the outflow chamber has a curvature parallel to the pivot axis.
  • the water flowing along the curved flap surface in the vertical direction causes horizontal force components acting in opposite directions on the rising and falling curved surface and acting on different lever arms.
  • Upward flowing water causes closing and downward flowing water creates an opening torque on the flap, which shortens its opening and closing times, which increases performance affects the wave energy system.
  • a force is transmitted from the housing of the hydropower machine to the floating body of the wave energy installation which tends to rotate this installation about an essentially vertical axis, so that the installation is to be anchored very firmly to the sea floor.
  • This torque can be counteracted according to the invention in that the wave energy system is equipped with a pair of hydropower machines, the rotors of which rotate in the opposite direction. The rotational forces transmitted from the housings of the hydropower machines to the floating body are thus opposite and therefore cancel each other out.
  • Fig. 1 is a schematic sectional view a wave energy system with two hydroelectric machines along the line I - I of Fig. 2,
  • FIG. 2 shows a schematic top view of the wave energy plant according to FIG. 1.
  • the floating body of the wave energy system shown is made of reinforced concrete and comprises an inflow chamber 2 arranged above an outflow chamber 4 with blocking elements 5 designed as non-return flaps with blocking elements 3 designed as non-return valves.
  • the inflow chamber 2 sits like a mushroom hat on the outflow chamber 4 and has an airtight seal as well as domed cover 1 and are the locking elements 3 in which the
  • Outflow chamber 4 laterally projecting bottom region of the inflow chamber 2 is provided.
  • the partition 6 between the inflow 2 and outflow chamber 3 there are two flow openings 7, each with an inserted water Engine 8 with coupled alternator 9, which are arranged in encapsulated rooms 10 in the inflow chamber 2.
  • the runners of the hydropower machines rotate in the opposite direction.
  • the cover In the cover
  • a ventilation opening 11 is arranged, which can be closed by a spherical buoyancy body 12.
  • the floating body made of reinforced concrete is buoyed by air chambers 13, 14, 15.
  • the air chambers 13, 14, 15 are chosen so large that the water line of the floating body in calm seas approximately at the level of the mouth of the vent hole
  • a rectifier 19 is arranged in the air chamber 13 for each generator 9.
  • An electric line 20 leads from the three-phase generators 9 to the coast via the rectifiers 19.
  • Eyes 16 and 17 are provided on the outflow chamber 4. They are used to attach anchor chains 18 and and for anchoring the floating body, which is to be carried out in such a way that the blocking elements 3 lie on the sea side and the sea waves hit the floating body parallel or obliquely.
  • the dimensions of the float are to be chosen according to the prevailing sea profile at the intended place of use so that part of the blocking elements 3 on the inflow chamber 2 in the region of a wave crest and part of the blocking elements 5 on the outflow chamber 4 are simultaneously in the region of a wave trough.
  • the sea waves vibrating upwards under the inflow chamber 2 of the float hit the barrier located in their area elements 3 and press water into the inflow chamber 2. They compress the air in it below the cover 1 after the vent 11 has been closed beforehand by the rising water level in the inflow chamber 2 with the buoyancy body 12.
  • the immersion depth of the float increases slightly due to the inflowing amount of water.
  • the air pressure prevailing above the water level in the inflow chamber 2 and the water pressure in front of the blocking elements 5 in the outflow chamber 4, which lie in the region of wave troughs, result in a maximum pressure drop, which water from the inflow chamber 2 through the hydropower machines 8 into the outflow chamber 4 and through the locking elements 5 located in it, located in the area of wave troughs, presses.
  • the maximum pressure drop between the blocking elements 3 and 5, through which water flows in and out, and the amount of water flowing through the hydropower machines 8 are a measure of the Pressure energy that is converted into mechanical energy in the hydropower machines 8 and used to drive the three-phase generators 9.
  • the three-phase current generated by the three-phase generators 9 is expediently converted into direct current in the rectifiers 19.
  • the direct current output from a plurality of three-phase generators 9 can be used via separate windings to generate the armature and pole field of a direct current motor, which is expediently a shunt motor.
  • the energy output of this direct current motor, not shown, can then be supplied by a likewise not shown , Three-phase generator converted into three-phase current and fed into the public power grid.

Landscapes

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

Abstract

Une installation d'exploitation de l'énergie des vagues comprend un flotteur ancré au fond de la mer et subdivisé en une chambre d'admission (2) et en une chambre d'évacuation (4) pourvues d'une pluralité d'éléments de barrage (3, 5) qui laissent passer le courant dans une seule direction. Un ou plusieurs orifices d'écoulement (7) sont formés dans la cloison entre la chambre d'admission (2) et la chambre d'évacuation (4), une turbine hydraulique (8) couplée à un générateur (9) étant disposée dans chaque orifice. L'eau pénètre dans la chambre d'admission (2) par les éléments de barrage (3) qui se trouvent dans la zone des vagues montantes de la mer. L'eau sort de la chambre d'évacuation (4) par les éléments de barrage (5) qui se trouvent dans la zone du creux des vagues. La différence de pression entre les éléments de barrage (3, 5) ouverts par l'eau qui entre et qui sort et le volume d'eau qui s'écoule à cause de cette différence à travers les turbines hydrauliques (8) produit l'énergie utile.
EP86901049A 1985-01-18 1986-01-16 Installation d'exploitation de l'energie des vagues Withdrawn EP0211055A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3501543 1985-01-18
DE3501543 1985-01-18

Publications (1)

Publication Number Publication Date
EP0211055A1 true EP0211055A1 (fr) 1987-02-25

Family

ID=6260148

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86901049A Withdrawn EP0211055A1 (fr) 1985-01-18 1986-01-16 Installation d'exploitation de l'energie des vagues

Country Status (3)

Country Link
EP (1) EP0211055A1 (fr)
AU (1) AU5452286A (fr)
WO (1) WO1986004391A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2211896A (en) * 1987-10-31 1989-07-12 Timothy William Bazeley Wave power device
DE3904442C1 (en) * 1989-02-10 1990-04-26 Heinz 1000 Berlin De Noack Device for converting wave lifting energy into rotational energy
US6747363B2 (en) * 2002-02-02 2004-06-08 Gines Sanchez Gomez Floating platform harvesting sea wave energy for electric power generation
EP2232055B8 (fr) * 2007-12-17 2015-11-11 CETO IP Pty Ltd Actionneur flottant
PT2329137T (pt) 2008-08-29 2016-12-09 Hann-Ocean Energy Pte Ltd Dispositivo de conversão de energia de onda

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB156248A (en) * 1919-04-23 1921-10-20 Frederick George Peck Improvements in apparatus for deriving power from waves, tides and the like
SE373639B (sv) * 1973-06-18 1975-02-10 M W Gustafson Anordning for att tillvarata energi som er bunden i vattnets vagrorelse eller sjohevning
US4022549A (en) * 1975-07-30 1977-05-10 Harold Gregg Shoreline air compressors wherein swell water pumps the air
GB1581831A (en) * 1976-06-09 1980-12-31 Energy Secretary Of State For Device for extracting energy from water waves
BG27826A1 (en) * 1978-11-03 1980-01-15 Nedjalkov Apparatus for energy transforming of sea and ocean waves

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8604391A1 *

Also Published As

Publication number Publication date
AU5452286A (en) 1986-08-13
WO1986004391A1 (fr) 1986-07-31

Similar Documents

Publication Publication Date Title
US4627240A (en) Wave powered machine
US5374850A (en) Apparatus and method for tidal and wave generation of power
DE2933907A1 (de) Anlage zum gewinnen von elektrischer energie aus stroemenden gewaessern und turbinenaggregat fuer eine solche anlage
DE102009008211B4 (de) Energiegewinnung aus Wellen oder Impulsen
DE2737143A1 (de) Einrichtung zur energiegewinnung aus der energie von wellen
DE4338103A1 (de) Vorrichtung zur Gewinnung von elektrischer Energie mit Hilfe der kinetischen Energie von Wasserwellen
EP2003332A1 (fr) Centrale hydroélectrique
US4216655A (en) Wave-operated power plant
DE2648318C2 (de) Wasserkraftwerk
EP0211055A1 (fr) Installation d'exploitation de l'energie des vagues
DE102005019738A1 (de) Kraftwerk, insbesondere Meereswellenkraftwerk
WO2007031592A1 (fr) Installation de production d'energie par debit/pression
DE102017003094A1 (de) Vorrichtung zur Erzeugung von Energie
DE102017110019A1 (de) Brandungskraftwerk und Verfahren zur Stromerzeugung
DE102004060275A1 (de) Materialsparender Strömungskonverter und dessen Verwendung als Wellenkraftwerk
US2441759A (en) System utilizing the energy of the waves
WO1989010481A1 (fr) Moteur hydraulique
AT412009B (de) Turbine mit einem stromabwärts anschliessenden rohr
KR20070061488A (ko) 조력발전 방식
DE3401273A1 (de) Vorrichtung zur umwandlung von in fluessigkeitswellen wirkender energie in praktisch nutzbare energie
DE69919589T2 (de) Energieumwandlungseinheit zur wandlung der energie von seewellen in elektrische energie
DE3544043A1 (de) Einrichtung zur erzeugung von elektrischer energie
DE553144C (de) Anlage zur Nutzbarmachung der durch die Ebbe und Flut des Meeres verfuegbaren Energie
DE3027593A1 (de) Wellenkraftwerk
DE4314820A1 (de) Wasserturbine, getrieben mit wenig Druck

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19861015

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE GB

17Q First examination report despatched

Effective date: 19870217

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19890801