WO2011036660A1 - Système de collecte d'eau de mer pour dessalement - Google Patents

Système de collecte d'eau de mer pour dessalement Download PDF

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Publication number
WO2011036660A1
WO2011036660A1 PCT/IL2010/000762 IL2010000762W WO2011036660A1 WO 2011036660 A1 WO2011036660 A1 WO 2011036660A1 IL 2010000762 W IL2010000762 W IL 2010000762W WO 2011036660 A1 WO2011036660 A1 WO 2011036660A1
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WO
WIPO (PCT)
Prior art keywords
seawater
collection system
wave
low pressure
seawater collection
Prior art date
Application number
PCT/IL2010/000762
Other languages
English (en)
Inventor
Haim Lieberman
Original Assignee
Haim Lieberman
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 Haim Lieberman filed Critical Haim Lieberman
Priority to US13/496,897 priority Critical patent/US20120174999A1/en
Publication of WO2011036660A1 publication Critical patent/WO2011036660A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/10—Accessories; Auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/12—Controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/36—Energy sources
    • B01D2313/367—Renewable energy sources, e.g. wind or solar sources
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08—Seawater, e.g. for desalination
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/009—Apparatus with independent power supply, e.g. solar cells, windpower or fuel cells
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/131—Reverse-osmosis
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/138—Water desalination using renewable energy
    • Y02A20/144—Wave 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/208—Off-grid powered water treatment
    • Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/85978—With pump

Definitions

  • the present invention relates to the field of wave energy power.
  • the present invention relates to a desalination and electricity generation system.
  • the present invention relates to the exploitation of wave energy for desalination and/or electricity generation.
  • the present invention relates to desalination using a reverse -osmosis process.
  • Salt water desalination systems have been in use for many years. Salt water can be desalinated to produce fresh water through a variety of processes, but typically desalination systems utilize reverse osmosis to separate fresh water from salt water.
  • Reverse osmosis requires a significant amount of energy to generate the amount of pressure necessary for the process to work efficiently.
  • Fossil fuel energy systems typically power desalination systems and correspondingly these systems generate pollution.
  • fossil fuels are a finite resource as well as expensive, and therefore are not suitable for poor countries desiring a method of generating fresh water.
  • a seawater collection system for enabling desalination of seawater by a reverse osmosis process.
  • the system comprises an intake portion for directing the seawater to a wave augmentation portion, wherein the wave augmentation portion converts the kinetic energy of the seawater to potential energy! a wave energy discriminator having a first end and a second end, wherein the first end of the wave energy discriminator is aligned with the wave augmentation portion, and wherein the wave energy discriminator differentiates between potential energy levels; a low pressure seawater collector aligned with the second end of the wave energy discriminator; and, a low pressure to high pressure converter for receiving seawater from the low pressure seawater collector, and enabling desalination.
  • the intake portion comprises at least one channel having a side wall on each longitudinal side, wherein each side wall is fixed to the sea floor and extends above the sea level.
  • the wave augmentation portion comprises an upwardly inclined ramp, wherein the ramp comprises at least one section wherein each section has a selectively changeable slope.
  • the ramp comprises 3 sections.
  • the slope of each section is changeable by a control mechanism.
  • the control mechanism comprises an electrical motor and is preferably remotely controlled.
  • the control mechanism comprises sensors for detecting desired parameters, wherein the desired parameters are transferred to a remote location for enabling remote control of the sections.
  • the control mechanism is controlled manually or automatically.
  • the wave augmentation portion comprises a sea side for receiving the seawater, and a shore side for discriminating the wave energy.
  • the wave energy discriminator comprises an array of seawater transferring ducts for transferring the seawater to the low pressure seawater collector.
  • the array of seawater transferring ducts is positioned on the shore side of the wave augmentation portion, and preferably, the array of seawater transferring ducts is arranged above the inclined wave augmentation portion.
  • Each duct comprises an inlet and an outlet, wherein the inlet is open at the wave augmentation portion and the outlet is open at the low pressure seawater collector.
  • Each inlet comprises an openable and closable cover for selectively allowing and preventing said seawater to enter the duct.
  • the cover comprises a flap that is pivotable at its lower end, such that when the seawater rises along the wave augmentation portion the cover is in a closed position, and when the seawater travels down the wave augmentation portion the cover is shifted to an open position.
  • the low pressure seawater collector comprises a plurality of seawater first-receptacles for receiving the seawater from the ducts, wherein the first- receptacles are arranged along a first vertical conveyer having an upper and lower rotating wheel, such that as each first-receptacle shifts along the conveyer, each rotating wheel rotates about its rotational axis, and wherein one of said wheels is coupled with an second vertical conveyer, wherein the second conveyer is vertically higher than said first vertical conveyer, and wherein the second vertical conveyer comprises a plurality of second- receptacles for receiving seawater and from the sea and raising the seawater to the upper end of the second vertical conveyer, wherein at the upper end, the second-receptacles of the vertical conveyer are emptied into a low pressure seawater tank.
  • the pressure of the seawater in the low pressure seawater tank is preferably 2.5 bar.
  • the low pressure to high pressure converter comprises :
  • a large cylinder for receiving the low pressure seawater from a first seawater transfer pipe, at the upper end of the large cylinder;
  • a small cylinder disposed within the large cylinder for receiving the low pressure seawater from a second seawater transfer pipe, at the lower end of the small cylinder;
  • seawater exit pipe for allowing high pressure seawater to exit the small cylinder to a desalination system.
  • the pressure of the seawater that exits the small cylinder is preferably between 50-75 bar.
  • a third seawater transfer pipe transfers seawater from the seawater tank to a water turbine system for generating electrical power.
  • the seawater collection system further comprises a negative discharge compartment, wherein the negative discharge compartment is disposed below the sea surface, beneath the low pressure seawater collector for creating an underwater force.
  • the negative discharge compartment comprises at least one inlet, each inlet having a cover that is selectively closed and opened by the seawater waves.
  • the seawater collection system further comprises a fluid spoiler system for increasing the velocity of the seawater, wherein the fluid spoiler system comprises ' ⁇
  • a matrix of lagrangian sensors are positioned between the two rows of spoilers for determining the velocity of the seawater!
  • control optimizer for adjusting the position of each spoiler; and, a control mechanism coupled with each spoiler for controlling the operation of each spoiler.
  • Each row of spoilers preferably comprises between 1-5 spoilers.
  • the seawater collection system further comprises a phased entry system, wherein the phased entry system comprises a pair of gates for enabling an alternating movement of the seawater waves towards wave augmentation portion
  • the gates are preferably located between the intake portion and the wave augmentation portion.
  • the gates selectively alternate between an open position and a closed position, such that when the first gate is open, the second gate is closed, and when the first gate is closed the second gate is open.
  • the seawater collection system is divided into two longitudinal sections, thereby forming two wave augmentation sections, two wave energy discriminators and two sets of low pressure seawater collectors.
  • the seawater that passes through the system returns to the sea by traveling around the system.
  • FIG. 1 shows a schematic block diagram of the system of the present invention
  • FIG. 2 shows a schematic perspective view of the intake portion of the present invention
  • FIG. 3 shows a schematic side view of the wave augmentation portion of the present invention
  • FIG. 4 shows a schematic side view of the energy discriminator of the present invention
  • FIG. 5a and 5b show an enlarged duct of the energy discriminator in an open (Fig. 5a) and closed (Fig. 5b) position!
  • FIG. 6 shows a schematic side view of the low pressure seawater collector of the present invention
  • FIG. 9 shows a schematic side view of a second embodiment of the present invention.
  • FIG. 10 shows a schematic top view of the fluid spoiler system of the second embodiment
  • FIG. 11 shows a schematic top view of the third embodiment of the present invention.
  • the present invention relates to seawater desalination powered by wave energy, for extracting fresh water from seawater by means of a Reverse- Osmosis (RO) process using plastic-membrane filters. Additionally, electrical power may be generated for commercial use.
  • the powering energies are to be supplied by sea waves and tides that are renewable, instead of fossil sourced fuels that largely contribute to the excess atmospheric CO2 levels.
  • System (lOO) comprises an intake portion (llO) for directing the seawater waves (10) to a wave augmentation portion (120).
  • Wave augmentation portion (120) converts the kinetic energy of seawater waves (lO) to potential energy.
  • a wave energy discriminator (130) is ahgned at its first end with wave augmentation portion (120), for differentiating between kinetic energy levels of the seawater.
  • System (lOO) further comprises a low pressure seawater collector (140), and a low pressure to high pressure converter (150) for enabling desahnation.
  • FIGs. 2 - 8 show the various components of system (100) of the first embodiment in schematic detail.
  • a front perspective view of intake portion (l 10) is shown comprising a channel facing the sea, having longitudinal side walls (112) for guiding waves (10) coming from different directions, to wave augmentation portion (120).
  • intake portion (110) has more than one channel.
  • Each wall (112) extends preferably 25-30 meters outwards towards the sea.
  • Intake portion (110) (comprising, preferably several channels) preferably extends 50-60 meters across the sea surface.
  • Each wall (112) is fixed to the sea floor (not shown) and preferably extends from the sea floor at least 5 meters above the highest sea level along the length of wall (112).
  • a side view of wave augmentation portion (120) is shown with the intake portion not shown for reasons of clarity, comprising an upwardly inclined adjustable ramp (122) having a sea side (A) for receiving the seawater, and a shore side (B) for discriminating the wave energy (as described further herein below).
  • Ramp (122) is comprised, in this embodiment, of three essentially similar sections (l24a-c), although a fewer or greater number of sections may be present in alternative embodiments.
  • Each section (l24a-c) has a slope, which is selectively changeable by a control mechanism (126) such as an electrical motor, shown in the figure affixed to the lower end of each section (l24a-c), although the particular location of mechanism (126) may be different according to design, mechanical and other considerations.
  • a control mechanism (126) such as an electrical motor, shown in the figure affixed to the lower end of each section (l24a-c), although the particular location of mechanism (126) may be different according to design, mechanical and other considerations.
  • Control mechanism (126) is preferably remotely and automatically controlled, and comprises sensors (not shown) for detecting desired parameters such as sea conditions, weather conditions, etc. The desired parameters are transferred to a remote location for enabling automatic control of sections (l24a ). Alternatively, control mechanism (126) may be operated manually according to the same desired parameters. Waves (10) are shown in Fig. 3 directed from the intake portion (see Fig. 2) moving towards and up ramp (122). As seen, the amount of seawater that reaches the lower section (124a) of ramp (122) is greater than that which reaches the upper section (124c) of ramp (122). Ramp (122) augments the height of the seawater, and in doing so converts the kinetic energy of the seawater into potential energy.
  • ramp (122) is 25-30 meters across the sea surface, preferably essentially corresponding to the distance across the sea surface of the proximal ends of the walls of the intake portion (not shown in this figure). Ramp (122) reaches preferably 10-15 meters in height, that is, above the sea level.
  • wave energy discriminator (130) is shown comprising an array of seawater transferring ducts (132) for transferring seawater to a low pressure seawater collector (Fig. 6).
  • Wave energy discriminator (130) is located above the upper section (124c) of ramp (122), on the shore side (B) of ramp (122).
  • Each duct (132) extends the transverse length of ramp (i.e.25-30 meters) as well as outwards, orthogonally away from the sea side (A) (See Fig. 3) of ramp (122), preferably a distance of 5 meters.
  • Each duct (132) comprises an inlet (134), which opens tow ruV ramp and an outlet lYSft , which opens at the 'low pressure seawater collector (see Fig. 6).
  • Each inlet (134) comprises a cover (138) for selectively allowing and preventing seawater from entering respective ducts (132)
  • Figs. 5a and 5b show one duct (132) enlarged for illustrative purposes, where the cover (138), in the form of a pivotable flap is shown in the closed (Fig. 5a) and open (Fig. 5b) positions.
  • the seawater applies a force on flap (138), thereby maintaining duct (132) in a closed position.
  • the seawater travels back down the discriminator and ramp, as indicated by arrow (13 lb)
  • the seawater contacts the upper edge of flap (138), thereby causing flap (138) to open by pivoting about axis (139).
  • the upper edge of flap (138) comprises an outwardly extending hp (not shown) that catches the seawater on its way down. While duct (132) is open, the seawater enters through inlet (134), as indicated by arrow (13 lc), and travels therethrough towards the low pressure seawater collector.
  • Wave energy discriminator (130) essentially divides the seawater that travels up the ramp, into distinct levels of potential energy, such that the seawater that enters the upper (higher) ducts store a greater amount of potential energy than does the seawater that enters the lower ducts.
  • Wave augmentation portion (120) and wave energy discriminator (130) are preferably situated in an adjustably fixed position above the surface of the sea, wherein the precise positions are set via a computer control.
  • wave augmentation portion (120) and wave energy discriminator (130) float on the sea, and have an anchor to fix their position.
  • wave augmentation portion (120) and wave energy discriminator (130) are fixed to the floor of the sea.
  • Fig. 6 shows low pressure seawater collector (140) aligned with the second end of wave energy discriminator (130) (not shown), comprised of a plurality of seawater first-receptacles (142) for receiving seawater from the ducts (132) (not shown), as indicated by arrow (131c).
  • First-receptacles (142) are arranged along a first vertical conveyer (143) having an upper and lower rotating wheel (or, pulley) (144a), (144b), respectively. Seawater passes from ducts (132) to each of the respective receptacles (142).
  • seawater collection system (100) of the present invention further comprises a negative discharge compartment (170), shown schematically in Fig. 1. Referring to Fig. 8, compartment (170) is disposed below the surface of the sea, beneath receptacles (142).
  • covers (172) are closed.
  • the lower crest of a wave traveling towards system (100) causes covers (172) to open and allow seawater to enter the inlets (174) that are normally closed by covers (172).
  • the seawater contained in compartment (170) is discharged through outlet (176).
  • the discharged seawater creates an underwater force that provides an additional drive to conveyer (143) (that is, in addition to the gravitational pull of receptacles (142)).
  • Second vertical conveyer (145) comprises a plurality of second receptacles (147) for receiving seawater directly from the sea, and raising the seawater to the upper end of second vertical conveyer (145).
  • Second receptacles (147) typically have a smaller volume than first receptacles (142).
  • second receptacles (147) are emptied into a low pressure seawater tank (149).
  • Second vertical conveyer (145) elevates the seawater higher than first vertical conveyer (143).
  • second vertical conveyer (145) an in turn tank (149) is preferably elevated to a height of 25 meters, whereas first vertical conveyer elevates the seawater to 3 meters.
  • water pressure at tank (149) is 2-2.5 bar.
  • the water pressure is required to be 50-70 bar.
  • the present invention further comprises a low to high pressure converter (150), shown in a side view, schematically in Fig. 7.
  • conveyer (143) to conveyer (145) is not shown to scale. Moreover, a greater or fewer amount of receptacles may be present along conveyers (143) and (145), depending on design and other considerations.
  • low pressure to high pressure converter (150) comprises a large cylinder (154), which receives at its upper end, the low pressure seawater contained in tank (149), via a first seawater transfer pipe (152).
  • a large piston (160), for shifting within large cylinder (154), and a small piston (162), for shifting within small cylinder (158) are joined by a shaft (164), such that cylinders (154), (158) are raised and lowered concomitantly.
  • a seawater exit pipe (166) transfers high pressure seawater from small cylinder (158) to a desalination system (not shown).
  • first pipe valve (161) and exit valve (165) are closed, and second pipe valve (163) is open to allow seawater to enter chamber (C) in small cylinder (158).
  • the increase in pressure in chamber (C) forces piston (162) upwards, and thereby, piston (160), upwards, toward the upper surface of large cylinder (154).
  • Ventilation valves (not shown) allow excess air and seawater present in chamber (D) of large cylinder (154) to exit therefrom.
  • second pipe valve (163) and ventilation valves are closed, and first pipe valve (161) is open to allow seawater from tank (149) to fill chamber (D).
  • the force of the seawater entering chamber (D) pushes large piston (160) downwards, and thereby, piston (162) downwards, towards the lower surface of small cylinder (158).
  • exit valve (165) is open, and high pressure water exits low to high pressure converter (150) to the desalination system (not shown).
  • the pressure of the seawater that exits the small cylinder is between 50-75 bar. This pressure increase results from the inverse proportion of the areas of large piston (160) to small piston (162).
  • a third or alternative transfer pipe transfers seawater from tank (149) to a water turbine system for generating electrical power.
  • the generated power is at least the amount of power required for powering the desalination system.
  • the present invention may be utilized with a conventional RO desalination system, which requires 50-75 bar seawater.
  • a conventional RO desalination system which requires 50-75 bar seawater.
  • Such a system would include RO filter banks, which comprise a pressure recovery subsystem for higher efficiency, a post filter and a purified water outlet.
  • present invention may be utilized as a single system or may be combines with additional seawater collection systems of the present invention in order to maintain maximum efficiency for desalination and/or energy generation.
  • a second embodiment of the present invention is shown schematically in Fig. 9, showing the seawater collection system (200) in a side view, and schematically in Fig. 10, showing a top view of the fluid spoiler system (280).
  • the second embodiment comprises all of the essential features and components of system (100) of the first embodiment, mutatis mutandis, with the following differences.
  • seawater collection system (200) comprises a fluid spoiler system (280) for disrupting the flow of the seawater to increase the amount of turbulent flow as well as velocity, thereby converting the potential energy of the sea waves to kinetic energy.
  • the underwater spoiler system (280) is positioned beneath the water, above the sea bed (2) and in front of wave augmentation portion (220) as well as in front of the intake portion (not shown in this figure). Elevated waves (ll) are schematically shown raised above wave augmentation portion (220).
  • a longitudinal row of spoilers (281) and (282) is positioned in front of each transversal end of the intake portion (not shown).
  • a matrix of lagrangian sensors (284) is positioned between the two rows of spoilers (281) and (282) for determining the velocity of the seawater as a function of the x, y, z coordinates.
  • a control algorithm provided by the control software transmits the sensor data to a data processor (not shown) which acts as a control optimizer for adjusting the position of each spoiler (281a), (281b), (281c) and (282a), (282b), (282c).
  • Spoilers (281a), (281b), (281c) and (282a), (282b), (282c) are positioned according to the direction of the sea waves (10), wherein, for instance, the amplitude of a first portion (10a) of sea wave (10) is in a positive direction (peak) and the amplitude of a second portion (10b) of sea wave (10) is in a negative direction (trough).
  • a control mechanism (290) is coupled with each spoiler (281a), (281b), (281c) and (282a), (282b), (282c) similar to that described herein above with regards to the sections of the wave augmentation portion.
  • Control mechanism (290) may be situated, for instance, at an end of a spoiler (281a), (281b), (281c) and (282a), (282b), (282c) or in the middle, as shown in the figures.
  • Control mechanism (290) is preferably remotely and automatically controlled, or alternatively, control mechanism (126) may be operated manually.
  • a third embodiment of the present invention is shown schematically in Fig. 11, showing a schematic top view of the seawater collection system (300).
  • the third embodiment comprises all of the essential features and components of systems (200) and (300) of the first and second embodiments, mutatis mutandis, with the following differences.
  • system (300) further comprises a phase entry system (390) comprising a pair of gates (391), (392) for enabling an alternating movement of the seawater waves towards wave augmentation portion (320).
  • Gates (391), (392) are located between intake portion (310) and wave augmentation portion (320).
  • Gates (391), (392) selectively alternate between an open position and a closed position, such that when the first gate (391) is open, the second gate (392) is closed, and visa versa.
  • System (300) is divided into two longitudinal sections, thereby forming two wave augmentation sections (320a), (320b), two wave energy discriminators (330a), (330b), two sets of low pressure seawater collectors (340a), (340b), etc.
  • the seawater (10) passes from intake portion (310) through the open gate (391), and travels through system (300) as described herein above regarding the first embodiment. After the seawater passes through system (300), the seawater returns to the sea. Preferably, the "used" seawater (14) travels around system (300), as indicated in Fig. 11 by arrow (12).
  • seawater (14) enters intake portion (310), second gate (392) is open and first gate (391) is closed.
  • "Used” seawater (14) passes from intake portion (310) through the open gate (391), and travels through system (300) as described above.
  • One cycle of system (300) of the third embodiment is comprised of a first and second sequence.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Nanotechnology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

L'invention concerne un système de collecte d'eau de mer pour le dessalement et/ou pour la génération d'électricité, comprenant : une partie admission qui dirige l'eau de mer vers une partie augmentation des vagues, la partie augmentation des vagues convertissant l'énergie cinétique de l'eau de mer en énergie potentielle ; un discriminateur d'énergie des vagues effectuant une différentiation entre les niveaux d'énergie potentielle ; un collecteur d'eau de mer basse pression ; et un convertisseur basse pression/haute pression qui permet le dessalement de l'eau de mer par un procédé d'osmose inverse. Un compartiment de décharge négative facultatif fournit une force sous-marine au-dessous du collecteur d'eau de mer basse pression. Un système déflecteur facultatif interrompt le flux d'eau de mer pour augmenter le volume de flux en turbulence ainsi que la vitesse, convertissant ainsi l'énergie potentielle des vagues marines en énergie cinétique. Un système d'entrée de phase facultatif comprend deux portes permettant un mouvement alternatif des vagues d'eau de mer vers la partie augmentation des vagues.
PCT/IL2010/000762 2009-09-25 2010-09-16 Système de collecte d'eau de mer pour dessalement WO2011036660A1 (fr)

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US13/496,897 US20120174999A1 (en) 2009-09-25 2010-09-16 Seawater collection system for desalination

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US24567009P 2009-09-25 2009-09-25
US61/245,670 2009-09-25

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Cited By (2)

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CN107499461A (zh) * 2017-07-31 2017-12-22 中车南京浦镇车辆有限公司 一种用于轨道车辆带转向架运输多功能固定结构

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