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(11) | EP 0 400 000 B1 |
| (12) | EUROPEAN PATENT SPECIFICATION |
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| (54) |
PROCEDURE FOR ENERGY PRODUCTION IN POWER PLANTS INSTALLED IN A ROOM UNDER THE WATER SURFACE OF A HEAD STORE ENERGIE-ERZEUGUNGSVERFAHREN IN KRAFTANLAGEN, ERRICHTET UNTER DER WASSEROBERFLÄCHE EINES STROMAUFWÄRTS GELEGENEN BEHÄLTERS PROCEDE DE PRODUCTION D'ENERGIE DANS DES GENERATEURS D'ELECTRICITE INSTALLES DANS UN LOCAL SITUE EN-DESSOUS DE LA SURFACE DE L'EAU D'UN RESERVOIR D'AMONT |
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| Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention). |
[0001] The invention "SVEVOZ Power Plant" concerns a proceeding for energy production in power plants installed in a room under the water surface of a head store, according to the preamble of claim 1.
[0002] Energy production in conventional water power plants demands running water from higher lower level, and the running water quantity together with the difference of heighet decide at different periods the quantity of the produced energy.
[0003] According to known method the water is pumped back to a new level height when there is surplus energy and consequently no need to supply electric energy at that time.
[0004] Energy production in water power plants in combination with the back pumping of water has not got any larger extent yet, due to the fact that, among other things, the energy available for the back pumping has been too expensive.
[0005] Energy from wind, waves and tide-water is cheap and suitable energy for back pumping of water, but places where these kinds of energy are available and where power plants are placed seldom coincide.
[0006] Energy production and energy storing according to the proceeding of the invention can be localized to places independent of supply of running water and differences in height for storing of back pumped water and where desirable supply and conditions exist to utilize wanted energy for operation of arrangement for the pushing aside of water and where there is market for produced energy.
[0007] "It has been suggested in the Swedish patent application SE-A-8001175 that explosive substance is activated, pushing aside water."
[0008] The present invention comprises a proceeding for energy production with effective arrangements for pushing aside of water operated by nergy from wind, waves, tidewater, according to the characterizing parts of the claims.
[0009] The effect of the energy storing in the return store, dimensioned for more than normal operation, constitutes a part component in the system, and arrangements in alternative models, using varying kinds of energy for operation of these arrangements give the characteristics of the system stated in the claims where, among other things, the level height of water also can be utilized without claims for running water or embankments, i.e. differences in level.
[0010] The characteristics and details of the invention are clear from the following description with reference to enclosed drawings, in which figure 1 is showing a plant for accomplishment of the proceeding in vertical plane at which pump piston operates by wind energy and/or by electric energy, figure 2 is showing a plant for accomplishment of the proceeding in vertical plane at which pump piston operates by wave energy and/or by electric energy, figure 3 is showing a plant for accomplishment of the proceeding in vertical plane at which pump piston operates by tide-water, wind and waves energy.
[0011] According to figure 1 water is led from head store 1 in a tunnel 3 to and through a power plant 4 for gathering in a return store 5. From the return store 5 water is led in a tunnel 6 to a secondary store 7. Wind energy - earlier known method - generated by arrangement 13 lifts or wrings up a pump piston 8. Water from the store 7 will then fill up the released space. At return the pump piston 8 presses water from pit 9, situated under the pump piston 8 through back valves 10 and back to the head store 1. As an alternative, the pump piston 8 is screw formed for transport of water from the store 7 and back to head store 1. In pump house 14 there is equipment for an alternative operation of pump piston 8 with a combination with wind energy.
[0012] According to figure 2 water is led from head store in a tunnel 3 to and through a power plant 4 for gathering in a return store 5. From the return store 5 water is led in a tunnel 6 to a secondary store 7. Wave energy - earlier known method - generated by arrangement 13 operates a pump piston 8, at which water from store 7 will be pressed through back valves 10 and back to head store 1. In pump house 11 there is equipment for an alternative operation of pump piston 8 with a combiantion with wave energy.
[0013] According to figure 3 water is led from head store 1 in a tunnel 3 to and through a power plant 4 for gathering in a return store 5. From the return store 5 water is led in two tunnels 6 mounted side by side in two pump pistons 8 and in a tunnel 7 to a pump store 12. The two tunnels 6, which are attached at their ends, are surrounded by pump pistons 8 with upper and lower chambers with intermediate bottom and moveable valves 9. Tide-water, vind and/or wave energy - earlier known methods - generated by arrangement 16 operate the two pump pistons 8, which are coupled together in pump house 14. The two pump pistons 8 have working moments in pairs at which water from the lower chamber of the pump piston is pressed out through back valves 10 and back to the head store 1 at the same time as water from the upper chamber of the pump piston is pressed through back valves 10 and back to head store 1. Water from pump store 12 establishes overpressure and water from the two tunnels 6 establishes negative pressure. In pump house 14 there is equipment for alternative operation of the two pump pistons 8 with a combination with tide-water, wind and/or wave energy.
1. Proceeding for energy production in power plants installed under the water surface
of a head store, said process comprising leading water from the head store (1) to
a power plant (4), using the water to generate power via power plant (4), leading
the water from the plant (4), to a return store (5), providing a space which is connected
with the water mass of the head store (1) and with said return store (5), CHARACTERIZED by a piston (8) in said space, lifting said piston by wind energy, or by wave energy,
or by tide-water energy to form a released space substantially empty of water, leading
water from the return store (5) to the released space, and sinking the piston (8)
in said space to push the water from the released space to said head store (1), whereby
a complete return of the water from said return store to the head store is maintained.
2. Proceeding according to claim 1,CHARACTERIZED in that one or more back valves (10) are arranged between the space and head store
(1) allowing water to pass in the direction to the head store only.
1. Verfahren zur Herstellung von Energie in Kraftwerken, mit einer Installation unter
der Wasseroberfläche eines Hauptspeichers. Besagter Prozeß führt Wasser vom Hauptspeicher
(1) zu einem Kraftwerk (4), verwendet das Wasser zur Herstellung von Energie via Kraftwerk
(4), und leitet das Wasser vom Kraftwerk (4) zu einem Auffangbecken (5), einen Zwischenraum
schaffend, der mit der Wassermenge des Hauptspeichers (1) und mit besagtem Auffangbecken
(5) verbunden ist. KENNZEICHNEND für den Prozeß ist ein Kolben (8) in besagtem Zwischenraum. Besagter Kolben wird
mittels Wind-, Wellen- oder Flutenergie hochgehoben, bildet einen freien Zwischenraum
ohne beträchtliche Wassermenge und führt das Wasser vom Auffangbecken (5) zum freien
Zwischenraum. Der Kolben (8) sinkt in besagtem Zwischenraum, und das Wasser wird vom
freien Zwischenraum in den besagten Hauptspeicher (1) gestoßen, wobei die gesamte
Wassermenge vom besagten Auffangbecken zum Hauptspeicher zurückkehrt.
2. Verfahren gemäß Anmeldung 1: KENNZEICHNEND sind ein oder mehrere Ventile (10), die zwischen dem Zwischenraum und dem Hauptspeicher
(1) angebracht sind und das Wasser nur in Richtung Hauptspeicher fließen lassen.
1. Procédé de production d'énergie dans les centrales hydrauliques, installé sous la
surface de l'eau d'un réservoir principal, consistant à amener l'eau du réservoir
principal (1) vers une centrale hydraulique (4), utilisant l'eau pour produire de
l'électricité dans la centrale hydraulique (4), amenant l'eau de la centrale hydraulique
(4) vers un réservoir de retour (5), laissant un espace relié à la masse de l'eau
du réservoir principal (1) et au réservoir de retour (5), CARACTÉRISÉ par un piston (8) dans ledit espace, soulevant ledit piston par énergie éolienne
ou par l'énergie des vagues ou par l'énergie des marées pour former un espace libre
en grande partie vide d'eau, amenant l'eau du réservoir de retour (5) à l'espace libre
et abaissant le piston (8) dans ledit espace pour chasser l'eau de l'espace libre
vers le réservoir principal (1), en conservant un retour complet de l'eau du réservoir
de retour au réservoir principal.
2. Procédé conforme à la revendication 1, CARACTÉRISÉ par le montage d'un ou de plusieurs clapets anti-retour (10) entre l'espace et le
réservoir principal (1), permettant le passage de l'eau dans la seule direction du
réservoir principal.