WO2021028761A1 - Émulseur à air actionné par une pompe d'aspiration entraînée par l'énergie éolienne ou par l'énergie marémotrice - Google Patents

Émulseur à air actionné par une pompe d'aspiration entraînée par l'énergie éolienne ou par l'énergie marémotrice Download PDF

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Publication number
WO2021028761A1
WO2021028761A1 PCT/IB2020/057154 IB2020057154W WO2021028761A1 WO 2021028761 A1 WO2021028761 A1 WO 2021028761A1 IB 2020057154 W IB2020057154 W IB 2020057154W WO 2021028761 A1 WO2021028761 A1 WO 2021028761A1
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Prior art keywords
water
air
plant
tubular
aspirator
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PCT/IB2020/057154
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English (en)
Inventor
Bruno Cossu
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Bruno Cossu
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Publication of WO2021028761A1 publication Critical patent/WO2021028761A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
    • E02B1/003—Mechanically induced gas or liquid streams in seas, lakes or water-courses for forming weirs or breakwaters; making or keeping water surfaces free from ice, aerating or circulating water, e.g. screens of air-bubbles against sludge formation or salt water entry, pump-assisted water circulation
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
    • E02B9/08—Tide or wave power plants
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present invention relates to a plant for artificial upwelling or for forced downwelling, as well as a variant thereof for the production of compressed air by water compression, which uses an airlift pumping system supplied with air at atmospheric pressure, thanks to one or more suction pumps, actuated by wind energy or by sea wave energy or by both.
  • airlift pumping system supplied with air at atmospheric pressure, thanks to one or more suction pumps, actuated by wind energy or by sea wave energy or by both.
  • the devices that have been invented to cause artificial upwelling are innumerable.
  • the OWC caisson uses, at least, a mechanical valve that allows, in the intake phase, the entry of atmospheric air into the caisson, in the compression phase, the flow of compressed air only inside the (upper) part of the upwelling pipe, which operates as an emulsifier tube.
  • the water that forms the crest of the wave flows, substantially by overtopping, and is collected inside floating tanks - whose edges are positioned at a greater height than that of the sea surface when it is still, but lower than the height reached by the crest of the wave when the sea is rough - from which, through a dedicated pipeline, then, they flow out towards the bottom, by gravity.
  • the patent US20090173386 A1 by Jeffrey A. et al. in its essential core, is based on this principle.
  • a fundamental limit of this type of plants is given, substantially, by the fact that, on one hand, they can use only the potential gravitational energy of the waves, and not also the kinetic energy, on the other hand, that they can only catch the limited part of the wave that rises above the edge of the caisson.
  • Pumps of this kind consists, fundamentally, of two tubes, of different length, installed, in vertical position and in fluid communication with each other, at the height of their lower ends, through a hermetically closed reservoir in which they both penetrate, in which a column of water that, given the difference in level between the two tubes, can circulate from the longer pipe to the shorter tube to exit, then, into the external environment, in the descending phase, it aspirates and progressively compresses the external atmospheric air which, once it is freed from water, is then collected in the upper part of the reservoir.
  • This type of pump has no mechanical moving members, it is particularly robust and, substantially, it is not subject to failures or to wear.
  • this type of hydraulic compressor has not, in fact, had great development on an industrial scale, inasmuch as its installation in a land environment (the only one where its construction has generally been conceived), to produce significant volumes of compressed air at adequate compression values in view of market needs (generally 7 or more atmosphere), is subordinated to the concurrent presence of three environmental conditions that are very difficult to find: 1. a body of water from which flow rates of several cubic meters per second can be drawn; 2. a waterfall of at least 10 meters (but preferably 15) between the level of the water that powers the motor tube of the hydraulic compressor and the one to which the water used in the process is discharged to the exterior; 3.
  • the inlet of the motor tube that operates as a compressor is positioned at a greater height than that of the free surface of the sea when it is still but slightly lower than the height ordinarily reached by the crest of the wave when the sea is rough, so that the pressure drop used is the one that corresponds to this height difference, which as is acknowledged in the same patent, is, as a rule, of the order of just 1.5- 2 meters, and hence altogether insufficient to produce appreciable quantities of compressed air at significant compression values.
  • the pressure of the related column is a function of the density of the mixture present therein so that it will be the smaller, the greater the percentage of air.
  • the plant is able to make available a pressure drop: - of approximately 9 meters, in the case of upwelling or downwelling; - of approximately 15 meters, in the version directed at the production of compressed air, and, hence, wholly adequate pressure drops to obtain the desired results.
  • the plant in the version that uses wave energy to actuate the suction pump, constitutes a static machine, inasmuch as it has no mechanical moving members Lastly - and this, too, is a feature that makes this plant particularly competitive with respect to all the other existing ones - in the plant can be installed and operate, both jointly and alternatively, both the aspirator actuated by wind energy, and the one moved by wave energy, which enormously broadens its possibilities of use.
  • FIGURE 1 is a schematic lateral view, in vertical section, of an embodiment of the invention in the version of the plant directed at causing artificial upwelling, or downwelling, or downwelling with concurrent aeration of the sunken water, in condition of non-operation;
  • - FIGURE 2 shows the plant per Figure 1 with the aspirator S in operation and the taps D1 and E1, which allow, regulate, prevent the flow of air at atmospheric pressure inside the plant, through the ducts D and E, closed;
  • - FIGURE 3 shows the plant per Figure 1 in upwelling operation, with the aspirator S in operation, the tap E1 open, the other tap, D1, closed;
  • - FIGURE 4 shows the plant per Figure 1 in downwelling operation, with the aspirator S in operation, the tap E1 closed and the other tap, D1, open;
  • - FIGURE 5 shows the plant per Figure 1 with both taps E1
  • the plant is characterized, in the first place, in that it consists of a hydro-pneumatic machine, partially immersed in a liquid body, in which upwelling or downwelling is obtained through an airlift pumping system that uses, as compressed air, air at atmospheric pressure, by virtue of the fact that the internal part of the system that is located above the free surface of the liquid body is housed in a space - a chamber open at its base, partially immersed, for some meters, in a liquid body - which one or more aspirators with which it is functionally connected maintain at a pressure lower than atmospheric pressure.
  • Another, and no less important, feature of the plant is that it can operate indifferently, i.e.
  • FIGURE 1 shows, first of all, schematically, the general structure of the plant.
  • the plant In its essential core, the plant consists of: a chamber A, preferably of tubular shape, made of rigid, pressure-resistant material (in particular, able to withstand the pressure gradient exerted by the exterior air when the plant is in operation), open at its base (4), whose opening, as a rule, corresponds to its maximum diameter, partially immersed, in vertical position, in a liquid body (as a rule, the sea but also a lake), from which it projects for at least 20 meters.
  • Said tubular chamber is watertight and can come in fluid communication with air at atmospheric pressure (6) only through the aspirator S and the ducts D and E, further described below.
  • the aspirator is not in operation, as a rule the chamber A is filled with air at atmospheric pressure (6).
  • the lower part (1) of the tubular chamber A is immersed in the (sea or lake) water under the free surface (2) indicated by the dashed line (for example for approximately 5 meters); at least, one aspirator S, which, as stated, is in fluid communication, in a part thereof, with the atmospheric air (6), in the other, with the inner upper part of the tubular chamber A, to which, as a rule, it is also connected materially, so as to form a single body.
  • the aspirator S is positioned at the top 3 of the tubular chamber A, but this is not binding.
  • the aspirator - that in this case consists of a water aspirator that exploits the Venturi effect - is installed in the lower part of the tubular chamber A.
  • the function of the aspirator, or of the aspirators if more than one, is to maintain inside the tubular chamber a pressure lower than atmospheric pressure, possibly as low as possible.
  • the aspirators are (preferably) actuated by wind energy or by sea wave energy, or also by both.
  • the X inside the box of the aspirator S indicates that it is not in operation.
  • the plant may also be installed multiple aspirators, optionally, two - one actuated by wind energy, the other one by sea wave energy - both joined with the tubular chamber A so as to form a single body therewith.
  • the aspirators can operate both simultaneously and alternatively, depending on the energy available at the time and they are provided with appropriate valves/devices that interrupt fluid communication with the outside environment, preventing the inflow of atmospheric air into the tubular chamber A, when they are not in function or if its condition of non-operation is accompanied by the condition of operation of the other aspirator or aspirators; a tubular body B.
  • the body is hollow, open at the two ends (7 and 8), inner and coaxial to the tubular chamber A and it is partially immersed in the liquid body.
  • the height at which the tube B is made to operate can be varied, providing appropriate means (not shown in the Figure) for adjusting the position of the upper end 7 of the tubular body B with respect to the free surface of the water 2, as coaxial sliding guides (radii) of the tubular body B in the tubular chamber A, a sliding sleeve applied to the end 7, etc.
  • the depth to which said tube extends is not indicated because it can be the most widely varied.
  • ducts D and E (hereafter also indicated as first and second means for the injection of atmospheric air), which allow the external air (6) to flow into the tubular chamber A or the tubular body B.
  • Said ducts are provided with appropriate taps, valves or the like, indicated with the letters D1 and E1, which allow to adjust, or to block, the flow of atmospheric air.
  • These taps may not be simple on/off valves, but rather valves with multiples ways and multiple positions, flow regulators, flow sensors (for example, ultrasound), to indicate any failure conditions.
  • the X affixed inside the circles that represent the taps D1 and E1 indicates that the taps are closed.
  • Both ducts, at their inner end, are provided with appropriate diffusers (not represented in the drawing) that allow to diffuse, according to their conformation, atmospheric air inside the space 9 or 12, or, in the case of downwelling with concurrent aeration of the sunken water, of both.
  • the diffuser of the duct D can consist of a manifold of annular shape that surrounds the tubular body B, whose upper surface is traversed by holes that allow the atmospheric air to flow in the whole annular space 12 (and not just in the limited part indicated in Figure 1), directing it upwards; a system for anchoring the plant (not shown in Figure 1) to the bottom of the sea, lake, artificial basin, or the like, or to another fixed structure, or to a floating structure, which allows the plant to maintain the desired position and to withstand the force of waves and wind.
  • FIG. 1 represents the upwelling and downwelling plant in non-operating conditions.
  • the space inside the tubular chamber A is also subjected to the same pressure (atmospheric pressure) existing externally because the aspirator S indicated in Figure 1 (being the sole one installed in the plant) is not provided with valves/devices that prevent the passage of air when it is not in operation. Therefore, since the part of the liquid body enclosed by the tubular chamber constitutes a system of communicating vessels with the part of the liquid body that is outside, the water level is the same both inside and outside said tubular chamber A, since, as stated, both spaces are subjected to the same pressure.
  • the system is in the following configuration: - aspirator S in operation; - tap E1 closed (circle with cross “X”); - tap D1 open (blank, i.e. empty, circle).
  • the dynamics of the downwelling process is exactly inverse to that of upwelling.
  • atmospheric air naturally flows into the tubular chamber A, passing through the duct (or the ducts) D, creating an air-water mixture (in this hypothesis, also at 50%) which rises to a greater height than the upper mouth 7 of the tubular body B.
  • FIGURE 5 shows the plant in downwelling operation with concurrent aeration of the sunken water.
  • FIGURE 6 refers to the version of the plant directed at the production of compressed air.
  • the plant is configured at an open circuit hydraulic air compressor, powered by the same water of the liquid body in which it is fully immersed.
  • the plant comprises among its components, in the first place, a tubular chamber A and an aspirator, already described in regard to Figure 1.
  • the tubular chamber A is divided in two separate sections, A1 and A2, through a vertical dividing wall P, which extends above the free surface of the water to approximately 19 meters of height.
  • section A1 is present the motor tube, i.e. the tube inside which the hydraulic compression of air takes place.
  • the motor tube consists of a tubular body, B1, open at the two ends, upper (7”) and lower (8”) and almost fully immersed, in vertical position, in the liquid body.
  • the immersed segment of said tubular body extends downwards to a hermetically closed reservoir (18), into which it penetrates to reach slightly below the upper wall thereof; the segment that projects from the free surface of the water extends, inside the section A1, for a height of approximately 17 meters.
  • the function of said tubular body is to operate as a motor tube.
  • the column of water that operates the compression of the aspirated air flows downwards to the reservoir (18), through a duct, E”, from the exterior.
  • the tube for the rising and discharge of the water that operated the compression.
  • Said tube consists of a tubular body, B2.
  • the function of said tubular body B2 which as a rule has a greater diameter than that of the tubular body B1, is to allow the rise of the water that operated the compression from the bottom of the reservoir to the height at which it has to be discharged.
  • the plant further comprises three ducts D’, E’ and E”, for the injection of atmospheric air inside, respectively, the section A1 of the chamber A, of the rising tube B2, and of the descending tube B1.
  • the air-water mixture as a rule 50% which, rising to the height above that, of 17 meters, at which the inlet of the motor tube is positioned, powers the plant with the water that, having separated from air, falls downwards by gravity; in the second case, to reduce the density of the water present in the last 16-17 meters (approximately) of the rising tube, thus starting its exit from said tube; in the third case, to inject into the motor tube the atmospheric air to be compressed.
  • the injection of the air takes place, as a rule, at a height slightly greater than that of the free surface of the water exterior to the plant, and, therefore, in an environment in which the pressure is lower than atmospheric pressure.
  • Each duct is provided with appropriate taps/valves, respectively D1’, with regard to the duct D’; E1’, with regard to the ducts E’; E1”, with regard to the duct E”. These taps allow, regulate, block the inflow of the atmospheric air.
  • D1’ with regard to the duct D’
  • E1’ with regard to the ducts E’
  • E1 with regard to the duct E”.
  • diffusers At the inner end of each duct are installed diffusers (not shown in the drawing, with the exception of the one pertaining to the duct E’) which distribute atmospheric air into the space according to their conformation.
  • the diffuser will have the shape of a holed ring that surrounds the tubular body B1, thus allowing to distribute uniformly the air injected by the tap/valve D1’ in the substantially annular cylindrical space delimited, in section A1, by the tubular body B1.
  • Another component of the plant is a reservoir (18), positioned at its lower end.
  • the reservoir has the dual function, on one hand, of collecting, on the bottom, the water that, after operating the compression, projects from the motor tube and, in the upper part, the compressed air that was freed from the water; on the other hand, of placing in fluid communication the motor tube with the rise and discharge tube.
  • Said tube is provided with appropriate valves/pressure sensors, which allow, prevent, regulate, in relation to the pressure existing inside the reservoir and/or place of utilization/storage of the compressed air, the flow thereof.
  • valves/pressure sensors which allow, prevent, regulate, in relation to the pressure existing inside the reservoir and/or place of utilization/storage of the compressed air, the flow thereof.
  • This drop is created by two airlift pumps, one of which raises the water present in the section A1 to the inlet 7” of the motor tube, and it is realized with the injection of the atmospheric air, through the duct D’, in the water column present in the space - in effect, an actual pipeline with substantially circular crown shape - delimited, inside the section A1, by the tube B1; the other airlift pump reduces, by approximately 50%, the density of the water that rises in the last 16-17 meters of the rise and discharge pipe B2, through the injection of atmospheric air in the upper segment of the tube B2, through the duct E’.
  • the hydraulic compressor is also characterized in that the two airlift pumps use, like the upwelling and downwelling plant, air at atmospheric pressure as compressed air.
  • both the segment of the descending tube i.e. of the motor tube
  • the segment of the ascending tube i.e. the rise and discharge tube
  • FIGURE 7 is a very schematic lateral view of a version of the preceding embodiments of the invention.
  • the reference symbols are those of the preceding figures with the exception of the details relating to the aspirator S1.
  • the aspirator consists of an Andreau wind turbine, whose tower (which substantially coincides with the tubular chamber A), whose hub, 22, and whose blades, 23, are hollow, and the latter have openings, 23a, at their ends.
  • This entails that, when the blades are moved by the wind, the centrifugal force expels the air present therein, and since there is an internal communication between the tower A, the hub and the blades, a continuous flow of suction air is generated - the air that progressively flows into the plant to actuate the airlift pumping system - that allows to maintain within the tubular chamber A (which, as stated, coincides with the tower) a pressure lower than atmospheric pressure, for example of 0.1 atmospheres.
  • This aspirator may be the only one installed in the plant or it may operate with one or more others, for example with the one actuated by wave motion, to be described when illustrating Figure 8.
  • this latter case i.e. when there are multiple aspirators in the plant, in the blades of the wind turbine, at the height of their ends, are installed appropriate devices/valves that close, when the turbine is not in operation, the openings, 23a, present in that point of the blades, thus preventing the external atmospheric air from penetrating inside the plant.
  • FIGURE 8 lastly, represents (also schematically and in section view) another type of aspirator, which, like the one shown in Figure 7, is actuated by natural energies, in this case by wave motion energy.
  • this aspirator too can be installed in both versions of the plant, i.e. both in the one for upwelling and downwelling and in the one for the production of compressed air. Moreover, it can be installed in a plant in which is already present the wind aspirator per Figure 7 and operate jointly therewith. Said configuration gives enormous advantages, both with regard to the efficiency of the plant, because the simultaneous operation of two aspirator obviously increases the aspiration capacity and, and above all, the continuity of operation of the plant, because the loss of one of the two energies (wind and wave motion) used by the aspirator does not entail the stoppage of the plant in the presence of the other.
  • This aspirator is essentially a Venturi water aspirator.
  • the aspirator exploits the flow of the waves forced to pass in an artifact whose section corresponds to the one of a Venturi tube, to obtain the vacuum necessary to aspirate (through appropriate ducts) and, hence, to transfer to the outside environment the air that, after flowing into the tubular chamber A and having operated as compressed air, in the airlift pumping system present in its interior, expands inside said chamber.
  • a fundamental feature of this marine aspirator is given by the fact that it: - can operate, maintaining very low pressures (even lower than 0.1 atmospheres) in the tubular chamber A even with waves of very limited height (even of only 1 or 2 meters); - is able to aspirate enormous quantities of air.
  • the vacuum that can be created inside the narrowed region of the artifact does not depend on the height of the water column that flows inside it, but on the narrowing ratio; on the other hand, the volume of air aspirated is tied to two factors: the dimensions and the shape of the artifact, which depend only on the choice of those who build it; the quantity of water that can flow inside it, which consisting of sea wave water, can be considered substantially unlimited for this purposes.
  • Figure 8 represents, as stated, one of the possible embodiments of such a water aspirator and therefore it does not limit all the others that can be embodiments within the scope of the present invention.
  • the water aspirator fundamentally consists of an artifact of annular shape, partially immersed in the liquid body, formed by two opposite walls 25’ and 25”, convergent divergent, whose section corresponds to that a Venturi tube. It is open at the two ends, upper and lower, and it surrounds the tubular chamber A, in a part thereof, above, in the other one, below, the free surface of the water. It is joined (when it is metallic, for example welded) thereto so as to form, with said tubular chamber A, a single body and hermetically to close the space 28 existing between the two structures.
  • the divergent segment which develops above the free surface of the water, projects therefrom, for a height correlated - for example in a ratio of 2/5 - to the average height of the waves recorded on site.
  • This height could even be much greater if the artifact is realized within, and as a component of, an overtopping structure. In this case, moreover, its operation would not be closely tied to the period of the waves but also to the quantity of water that can be accumulated in the related structure.
  • the inner wall 25 in the limited segment 26 of approximately 50 cm (corresponding to the maximum narrowing of the artifact), which extends by 25/30 cm above and by an equal distance below the free surface of the water when the sea is calm, is traversed by numerous holes 27.
  • Said tube 29 when the water aspirator S2 is intended to operate together with others is provided with appropriate devices/valves that when the water aspirator is not in operation interrupt the fluidic communication with the outside environment, preventing atmospheric air from flowing inside the tubular chamber A.
  • the principle of operation of this aspirator is that of any Venturi water aspirator, in this case tied to wave motion.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Removal Of Floating Material (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

La présente invention concerne une installation destinée à la remontée artificielle ou à la descente forcée, ainsi qu'un variant de celui-ci pour la production d'air comprimé par compression d'eau, actionnée par un système de pompage à émulsion d'air qui utilise de l'air à pression atmosphérique en tant qu'air comprimé, grâce au fait qu'une ou plusieurs pompes d'aspiration actionnées par l'énergie éolienne, ou par l'énergie marémotrice, ou par les deux, maintiennent une pression inférieure à la pression atmosphérique dans l'environnement dans lequel la partie de l'installation où s'écoule l'air créant l'émulsion, est logée (une chambre ouverte au niveau de sa base et immergée pour certains mètres dans un corps liquide).
PCT/IB2020/057154 2019-08-12 2020-07-29 Émulseur à air actionné par une pompe d'aspiration entraînée par l'énergie éolienne ou par l'énergie marémotrice WO2021028761A1 (fr)

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IT102019000014634 2019-08-12
IT102019000014634A IT201900014634A1 (it) 2019-08-12 2019-08-12 Airlift azionato da una pompa ad aspirazione mossa dall’energia del vento ovvero da quella delle onde marine

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
FR3128746A1 (fr) * 2021-11-04 2023-05-05 Isaac WOERLEN Dispositif de stockage sous-marin d’air comprime obtenu par une trompe hydraulique

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US3754147A (en) 1971-10-18 1973-08-21 Arizona Aqualectra Method and system for conversion of water and development of power
JP2001123999A (ja) * 1999-10-26 2001-05-08 Aqua:Kk エアレーションによる湧昇流発生装置
US20090173386A1 (en) 2008-01-03 2009-07-09 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Water alteration structure applications and methods
WO2016046689A1 (fr) 2014-09-25 2016-03-31 Bruno Cossu Compresseur d'air hydraulique immergé pourvu d'une colonne d'eau en écoulement à pompe d'aspiration d'eau
WO2019123330A1 (fr) 2017-12-21 2019-06-27 Bruno Cossu Pompe marine à émulsion

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Publication number Priority date Publication date Assignee Title
US3754147A (en) 1971-10-18 1973-08-21 Arizona Aqualectra Method and system for conversion of water and development of power
JP2001123999A (ja) * 1999-10-26 2001-05-08 Aqua:Kk エアレーションによる湧昇流発生装置
US20090173386A1 (en) 2008-01-03 2009-07-09 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Water alteration structure applications and methods
WO2016046689A1 (fr) 2014-09-25 2016-03-31 Bruno Cossu Compresseur d'air hydraulique immergé pourvu d'une colonne d'eau en écoulement à pompe d'aspiration d'eau
WO2019123330A1 (fr) 2017-12-21 2019-06-27 Bruno Cossu Pompe marine à émulsion

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3128746A1 (fr) * 2021-11-04 2023-05-05 Isaac WOERLEN Dispositif de stockage sous-marin d’air comprime obtenu par une trompe hydraulique
EP4177479A1 (fr) * 2021-11-04 2023-05-10 Woerlen, Isaac Dispositif de stockage sous-marin d'air comprime obtenu par une trompe hydraulique

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