CH666501A5 - Tidal electrical generation plant - Google Patents

Tidal electrical generation plant Download PDF

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Publication number
CH666501A5
CH666501A5 CH4713/85D CH471385D CH666501A5 CH 666501 A5 CH666501 A5 CH 666501A5 CH 4713/85 D CH4713/85 D CH 4713/85D CH 471385 D CH471385 D CH 471385D CH 666501 A5 CH666501 A5 CH 666501A5
Authority
CH
Switzerland
Prior art keywords
water
servomotor
tidal
operated
siphon
Prior art date
Application number
CH4713/85D
Other languages
Italian (it)
Inventor
Sergio Matteo Manzin
Original Assignee
Sergio Matteo Manzin
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 Sergio Matteo Manzin filed Critical Sergio Matteo Manzin
Priority to CH4713/85D priority Critical patent/CH666501A5/en
Publication of CH666501A5 publication Critical patent/CH666501A5/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03BMACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12Adaptations 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
    • F03B13/26Adaptations 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
    • F03B13/266Adaptations 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 to compress air
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B9/00Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
    • E02B9/08Tide or wave power plants
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/30Energy from the sea, e.g. using wave energy or salinity gradient

Abstract

The plant has its efficiency increased by increasing the water level of the dam, to reduce the period of inactivity of the plant between successive tides. This is effected by transferring additional water to the dam so that the obtained water level is above that obtained with the tide alone. Additional energy is provided by an auxiliary turbine driven by pressurised air.$Pref. the dam barriers are initially opened to allow ingress of the tide, with successive release of anchored floats lying within respective chambers providing compressed air which is fed to a central reservoir. The floats are then filled with water to allow them to sink with closure of the dam barriers and utilisation of both the contained water and the pressurised air for electricity generation.$

Description

666 501 666 501

Claims (4)

RIVENDICAZIONI 1. Centrale mareomotrice con sifoni trasferitori e serie di camere tubolari, composta da una serie di turbine alloggiate nella diga di sbarramento azionanti i rispettivi generatori e caratterizzata dal fatto di possedere una serie di sifoni trasferitori (22-44) alimentati da una serie di camere tubolari (11-14) che permettono, mediante l'aria a pressione prodotta con l'alta marea, di riversare masse d'acqua supplementari all'interno dell'invaso, attraverso condotti d'entrata (7) passanti per il muro della diga (1).1. Tidal power plant with transfer siphons and series of tubular chambers, composed of a series of turbines housed in the dam driving their respective generators and characterized in that it has a series of transfer siphons (22-44) fed by a series of chambers pipes (11-14) which allow, by means of the air pressure produced at high tide, to pour additional masses of water into the reservoir, through inlet ducts (7) passing through the dam wall (1). 2. Sifone trasferitore (22) in una centrale secondo la rivendicazione 1, sifone alimentato con acqua marina attraverso il condotto d'entrata (9) terminante nella sua parte superiore con chiusura d'entrata (8) azionata da relativo servomotore (3) e comprendente un tubo d'immissione (7) passante per il muro della diga (1) e fornito di chiusura d'uscita (6) azionata da servomotore (2) e uno o più condotti d'entrata d'aria a pressione (16) muniti di valvola (25) azionata da servomotore (4), un condotto d'uscita d'aria (10) per il ristabilimento della pressione atmosferica a mezzo valvola (26) azionata da servomotore (5).2. Transfer siphon (22) in a power plant according to claim 1, siphon fed with sea water through the inlet duct (9) ending in its upper part with an inlet closure (8) operated by a relative servomotor (3) and comprising an inlet pipe (7) passing through the dam wall (1) and equipped with an outlet closure (6) operated by a servomotor (2) and one or more pressurized air inlet ducts (16) equipped with a valve (25) operated by a servomotor (4), an air outlet duct (10) for restoring the atmospheric pressure by means of a valve (26) operated by a servomotor (5). 3. Serie di camere tubolari affiancate (11-14) in una centrale secondo la rivendicazione 1, caratterizzata dal fatto che le camere sono tenute in posizione da un opportuno sistema di cavi e tralicci poggianti sul fondo marino (17-21) e dotate ognuna di un condotto d'entrata per l'acqua (15), la serie presentando un tubo per l'aria a pressione (16) destinato a scaricare nel sifone (22).3. Series of tubular chambers placed side by side (11-14) in a plant according to claim 1, characterized in that the chambers are held in position by a suitable system of cables and pylons resting on the seabed (17-21) and each equipped of an inlet conduit for water (15), the series having a pressure air pipe (16) intended to discharge into the siphon (22). DESCRIZIONEDESCRIPTION L'idea attiene al campo dello sfruttamento, al fine di produzione di energia elettrica, del fenomeno ricorrente delle maree che, col loro trasferimento pendolare di grandi masse d'acqua, ne forniscono l'energia idraulica necessaria a generarla.The idea pertains to the field of exploitation, for the purpose of producing electricity, of the recurring phenomenon of the tides which, with their pendular transfer of large masses of water, supply the hydraulic energy necessary to generate it. Laddove il fenomeno della marea è particolarmente pronunciato ed il profilo topografico altrettanto favorevole — in presenza cioè di estuari o fiordi — vengono realizzati, a mezzo di semplici sbarramenti, bacini di ritenuta, equipaggiati di turbine idrauliche a bulbo con relativi generatori.Where the tidal phenomenon is particularly pronounced and the topographical profile equally favorable - i.e. in the presence of estuaries or fjords - retention basins are built by means of simple dams, equipped with bulb hydraulic turbines with relative generators. Poiché le centrali mareomotrici attuali, data la grandiosità delle opere necessarie, esigono per un loro impiego economicamente giustificabile, condizioni topografiche e di maree particolarissime, esse sono rare.Since current tidal power plants, given the magnitude of the necessary works, require very special topographical and tidal conditions for their economically justifiable use, they are rare. Anche per il futuro non sembra che impianti del genere siano destinati ad usufruire di un impiego più allargato in linea con le quantità potenziali di energia mareomotrice a disposizione che sono veramente imponenti.Also for the future it does not seem that plants of this kind are destined to take advantage of a wider use in line with the potential quantities of tidal energy available which are truly impressive. Al momento attuale solo lo 0,3% del lavoro globale delle maree viene utilizzato razionalmente e ciò sia per la frequente inefficienza dei dislivelli di marea a disposizione, sia per la caratteristica sfavorevole della periodicità.At present only 0.3% of the global work of the tides is used rationally and this is due both to the frequent inefficiency of the tidal levels available and to the unfavorable characteristic of the periodicity. La centrale mareomotrice secondo l'invenzione vuole abbassare la soglia di non-economicità delle centrali mareomotrici con l'impiego sinergico di sifoni trasferitori di grandi dimensioni.The tidal power plant according to the invention seeks to lower the threshold of non-cheapness of tidal power plants with the synergic use of large transfer siphons. Detti sifoni trasferitori, alimentati ad aria compressa e muniti di serie opportune di sifoni hanno il compito di pompare acqua all'interno dell'invaso una volta che lo stesso abbia raggiunto il suo limite d'altezza naturale a seguito dell'apporto dell'alta marea.These transfer siphons, powered by compressed air and equipped with appropriate series of siphons, have the task of pumping water inside the reservoir once it has reached its natural height limit following the contribution of the high tide . L'aria compressa sopra citata rappresenta il portato del lavoro compiuto da una serie di camere tubolari equipaggiate in modo da sfruttare al massimo l'escursione di marea al momento del loro riempimento parziale con acqua.The compressed air mentioned above represents the flow of work performed by a series of tubular chambers equipped in such a way as to make the most of the tidal range when they are partially filled with water. I vantaggi offerti dal modello di centrale mareomotrice secondo l'invenzione sono i seguenti:The advantages offered by the tidal power station model according to the invention are as follows: Aumento del potenziale di produzione elettrica di centrali mareomotrici tradizionali. Abbassamento della soglia di non economicità per manufatti mareomotori in caso di dislivelli di marea non eccezionali mediante l'immissione di quantitativi d'acqua supplementare a mezzo di sifoni.Increase in the electricity production potential of traditional tidal power plants. Lowering of the non-cheap threshold for tidal artefacts in the event of non-exceptional tidal differences through the introduction of additional water quantities by means of siphons. È un modello di grande flessibilità d'utilizzazione che difficilmente può essere messo in difficoltà da fattori atmosferici o sospensioni di sabbia.It is a model of great flexibility of use that can hardly be put in difficulty by atmospheric factors or sand suspensions. L'invenzione è spiegata dalla descrizione dettagliata seguente e con l'aiuto delle figure allegate, nelle quali:The invention is explained by the following detailed description and with the help of the accompanying figures, in which: la fig. 1 illustra un sifone trasferitore 22 alimentato con acqua marina attraverso il condotto d'entrata 9 terminante nella sua parte superiore con una chiusa d'entrara 8 azionata dal relativo servomotore 3. Il sifone 22 scarica acqua di mare nel bacino per mezzo di un tubo d'immissione 7 passante attraverso il muro della diga 1 e fornito di una chiusa d'uscita 6 azionata dal sovrastante servomotore 2.the fig. 1 shows a transfer siphon 22 fed with sea water through the inlet conduit 9 ending in its upper part with an inlet lock 8 operated by the relative servomotor 3. The siphon 22 discharges sea water into the basin by means of a pipe intake 7 passing through the wall of the dam 1 and provided with an outlet lock 6 operated by the overlying servomotor 2. Nella sua parte superiore il sifone trasferitore porta inoltre un condotto d'entrata d'aria a pressione 16 che dispone di una valvola 25 azionata dal relativo servo motore 4 unitamente ad un condotto d'uscita d'aria 10 per il ristabilimento della pressione atmosferica a mezzo della valvola 26 in esso incorporata ed azionata dal relativo servomotore 5.In its upper part the transfer siphon also carries a pressure air inlet duct 16 which has a valve 25 actuated by the relative servomotor 4 together with an air outlet duct 10 for restoring the atmospheric pressure to by means of the valve 26 incorporated therein and operated by the relative servomotor 5. La fig. 2 mostra il sifone trasferitore 22 allacciato mediante il condotto d'entrata d'aria a pressione 16 ad una serie di camere tubolari affiancate 11-14 parallelamente alla diga e sostenute ad altezza opportuna da un sistema di cavi e tralicci poggianti sul fondo marino 17-21 e dotate ognuna di un condotto d'entrata per l'acqua 15. Il tubo sovrastante per l'aria a pressione 16 scarica nel sifone 22 previo azionamento della valvola 25 manovrata dal relativo servomotore fig. 2 shows the transfer siphon 22 connected by means of the pressure air inlet duct 16 to a series of tubular chambers 11-14 side by side parallel to the dam and supported at a suitable height by a system of cables and pylons resting on the seabed 17- 21 and each equipped with an inlet pipe for the water 15. The overlying pipe for the pressurized air 16 discharges into the siphon 22 after actuation of the valve 25 operated by the relative servomotor 4. Lo stesso procedimento vale per i sifoni adiacenti. Il sifone è provvisto di un condotto per l'entrata dell'acqua 9 con relativa chiusura d'entrata 8 azionata da servomotore 3, nonché di un tubo d'immissione d'acqua nel bacino 7 fornito anch'esso di una chiusura d'uscita d'acqua 6 pure azionata da un servomotore 2. Il servomotore con valvola 5 provvede al ristabilimento della pressione atmosferica regolando l'emissione dell'aria attraverso il condotto d'uscita 10.4. The same procedure applies to adjacent siphons. The siphon is provided with a water inlet duct 9 with relative inlet closure 8 operated by servomotor 3, as well as with a water inlet pipe 7 in the basin also provided with an outlet closure of water 6 also operated by a servomotor 2. The servomotor with valve 5 restores the atmospheric pressure by regulating the emission of air through the outlet duct 10. 22 55 1010 1515 2020 2525 3030 3535 4040 4545 5050 Vv 2 fogli disegni2 drawing sheets
CH4713/85D 1985-11-04 1985-11-04 Tidal electrical generation plant CH666501A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH4713/85D CH666501A5 (en) 1985-11-04 1985-11-04 Tidal electrical generation plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH4713/85D CH666501A5 (en) 1985-11-04 1985-11-04 Tidal electrical generation plant

Publications (1)

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CH666501A5 true CH666501A5 (en) 1988-07-29

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Application Number Title Priority Date Filing Date
CH4713/85D CH666501A5 (en) 1985-11-04 1985-11-04 Tidal electrical generation plant

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1101894C (en) * 1997-07-18 2003-02-19 徐传富 Buoy type wave energy converter and its manufacture
GB2551571A (en) * 2016-06-23 2017-12-27 Red To Blue Ltd A system and method for extracting power from tides

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1101894C (en) * 1997-07-18 2003-02-19 徐传富 Buoy type wave energy converter and its manufacture
GB2551571A (en) * 2016-06-23 2017-12-27 Red To Blue Ltd A system and method for extracting power from tides
GB2551571B (en) * 2016-06-23 2018-06-27 Red To Blue Ltd A system and method for extracting power from tides
US10787783B2 (en) 2016-06-23 2020-09-29 Red to Blue Limited System and method for extracting power from tides

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