WO1997029049A1 - Systeme de dessalement de l'eau de mer par osmose inverse, avec renouvellement permanent de l'eau a dessaler - Google Patents

Systeme de dessalement de l'eau de mer par osmose inverse, avec renouvellement permanent de l'eau a dessaler Download PDF

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Publication number
WO1997029049A1
WO1997029049A1 PCT/ES1997/000028 ES9700028W WO9729049A1 WO 1997029049 A1 WO1997029049 A1 WO 1997029049A1 ES 9700028 W ES9700028 W ES 9700028W WO 9729049 A1 WO9729049 A1 WO 9729049A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
chamber
chambers
valves
sea
Prior art date
Application number
PCT/ES1997/000028
Other languages
English (en)
Spanish (es)
Inventor
Manuel Barreto Avero
Original Assignee
Manuel Barreto Avero
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
Priority claimed from ES09600294A external-priority patent/ES2103211B1/es
Priority claimed from ES09600485A external-priority patent/ES2103240B1/es
Application filed by Manuel Barreto Avero filed Critical Manuel Barreto Avero
Priority to AU16029/97A priority Critical patent/AU1602997A/en
Publication of WO1997029049A1 publication Critical patent/WO1997029049A1/fr

Links

Classifications

    • 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
    • B01D61/06—Energy recovery
    • 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

Definitions

  • the invention relates to a system for desalination of seawater by reverse osmosis, based on the fact that the pressure chamber in which the actual desalination is carried out is alternatively in communication with two other low pressure chambers, although the one If it is in communication with the first one, it will be pressurized, all in such a way that through such chambers a permanent renewal of the sea water is communicated, with a minimum energy consumption, using for this purpose properly designed valves to open and close in the opportune and required moments for the system to work correctly.
  • the system that has been recommended has been designed to solve this problem to full satisfaction based on a simple and effective solution that, as a first advantage, can be mentioned energy saving, simplicity and low cost of installation, as well as low cost maintenance reduction of faults in the installation, since this is very simple.
  • the procedure that is recommended is based on pressurizing at high pressure the chamber where reverse osmosis occurs with another chamber, or nurse tank, which had been filled with low pressure seawater.
  • Is Nursing chamber is used to exchange the brine produced in the osmosis chamber, for new water. This renewal will occur until the degree of salinity of the set reaches a certain value.
  • a valve system incommunicates both chambers, osmosis and nurse. Then, at low pressure, the brine will be evicted by fresh seawater in the nurse tank. Simultaneously, another valve system will communicate the osmosis chamber with another parallel nurse tank filled with new seawater. Repeating the process described above.
  • the system includes a sea water pump for renewal and a recycling pump so that the work done by such pumps is reduced and consequently the energy required small.
  • a sea water pump for renewal
  • a recycling pump so that the work done by such pumps is reduced and consequently the energy required small.
  • what is intended with the invention is to introduce without cost that 60 or 70 percent of water that will leave in the form of brine when leaving, without any energy or without pressure and supply the high pressure of reverse osmosis around 30
  • the remaining 40% at 70 atmospheres is the amount of water that will be desalinated, that is, the one that will cross the osmosis membrane. Only a separate pump, operating at high pressure, will be needed for the water that has to pass through the membrane, that is, the effective power for the water to be desalinated.
  • the piston can be large diameter, because it is between two equal pressures (compensated) quite the opposite to conventional high pressure pumps that are trying to make a small diameter so that the product pressure per surface is small and that the rest of the mechanism, such as the connecting rod, crankshaft, bearings, brackets etc. do not be subjected to great efforts, and therefore affect the robustness and price.
  • Only the cylinder will have to be sized for high pressure.
  • the construction of the pistons for high pressures has to have a great adjustment and therefore a great friction with the cylinder walls.
  • the low speed of the pump does not decrease the performance and this makes it particularly interesting to combine it with wind energy, since as we deal with pressures, a slow piston travel makes a displacement of the water, which does not happen with centrifugal pumps and turbines.
  • the costs of the pump according to the invention are much lower than conventional.
  • the pump that materializes the system also has special application to recirculate water from wells with large differences in dimensions, or renewal of pool water, counting on the difference in dimensions or the difference in Pressures between water containers is not a reason to increase engine power, although frictional load losses.
  • Deposits that contain water can be opened or closed interchangeably.
  • FIG 3 a a schematic view of an alternative embodiment of the system is shown, constituting in this case a brine exchange pump that originates in the process of reverse osmosis itself by the water to be desalinated.
  • FIG 4 a a schematic view is shown equal to the previous one, with the cylinder piston changed position like all the valves involved in the system.
  • the system of the invention comprises two nurse chambers (1 and 1 ') that on the one hand communicate through the conduits (2 and 2') with an inlet ( 3) of seawater, in which a pump (4) is intercalated with low pressure water renewal, while on the other hand those nurse chambers (1 and 1 ') are in communication with an outlet (5) through of respective pipes (6 and 6 ').
  • a pump (4) is intercalated with low pressure water renewal
  • those nurse chambers (1 and 1 ') are in communication with an outlet (5) through of respective pipes (6 and 6 ').
  • such chambers (1 and 1 ') communicate with an intermediate chamber (7) of high pressure or osmosis through the pairs of conduits (8-8') and (9-9 1 ).
  • This intermediate chamber includes an inlet (10) for seawater to be desalinated, as well as an outlet (1 1) for the desalinated water, a membrane (12) existing prior to said outlet (1 1). Seawater to be desalinated is propelled into the intermediate or osmosis chamber (7) by means of the high pressure pump (13), with a third recycling pump (14) existing in the intermediate chamber itself (7) with the nurse by the ducts (8-8 ') and (9-9').
  • valves (15-15') are provided in the pipes (6 and 6'); valves (17-17 ') are provided in the pipes (8-8'), and the valves (18-18 ') are provided in the pipes (9-9').
  • the operation is as follows:
  • seawater will begin to be introduced by the conduit (2) to the chamber (1) at the same time as the eviction of the water that this chamber contains begins, and that evacuation of water is carried out through the conduit (6) towards the outlet (5).
  • Such events occur as a consequence of the fact that the valves (15) and (16) are open and the valves (17), (18), (15 ') and (16') are closed.
  • the pump (4) performs only the work necessary to overcome friction, as a result of the input (3) and output (5) are at the same level.
  • the high pressure pump (13) is also put into operation, driving water from the sea through the inlet (10) to the chamber intermediate or osmosis (7).
  • This water inlet will result in the chamber (1), which was previously at sea level pressure, being pressurized with the high pressure of the said pump (13), since the chambers (1) and (7) are communicated through the valves (17) and (18), but closed with respect to the outside because the valves (15), (16), (17 ') and (18') are closed.
  • the pump (13) is a pump that has to give a high pressure capable of overcoming the pressure of the reverse osmosis, so that the flow of water entering will leave through the membrane (12), that being the flow desalinated.
  • (6 ') being the amount of water that enters the same as that which comes out or is evicted.
  • controls to change the position of the valves may be any, that is, they may be of the mechanical type or computerized, based, for example, on the salt concentrations at the strategic points of the system, the flows that pass through pumps, elapsed times, etc.
  • the system can operate with only two chambers, one of them osmosis and the other one that is filled with seawater and closed to the outside, and both are pressurized, communicating with the appropriate valves.
  • the size and shape of the nurse chambers that are loaded with salt water will be adequate for the capacity of the installation.
  • the tubular cylindrical shape is suitable so that there is no turbulence, in this way the water that enters with the brine that comes out is not mixed.
  • the smaller diameter also improves the mechanical resistance of the nurse chamber at the high pressure they are going to work on.
  • the system can work with horizontal or vertical tanks.
  • the valves can be simple multi-way valves to decrease the number of them.
  • the system determines what can be considered as a brine exchange pump for seawater, in this case comprising a high pressure chamber (20) containing the membrane of osmosis (21), and that communicates by two conduits (22) and (22 ') and through the respective valves of these (23) and (23') to one and another end of the cylinder (24).
  • This cylinder (24) has a piston (25) that is driven by the rod (31) which in principle can be considered to be practically negligible in diameter and is supposed to go to an alternative power source, such as a connecting rod mechanism, crankshaft and engine.
  • the cylinder (24) has two other ducts (26) and (26 '), which through their respective valves (27) and (27') communicate with the container (28) which may be the sea, a well. . etc.
  • the pump is at sea level.
  • This mechanism is complemented by the entry of water to be desalinated by the duct (29), driven by the high pressure pump (30) to the described chamber (20) and which will pass through the osmosis membrane (21) and finally the duct (32) where the product or desalinated water comes out.
  • the entire system is loaded with seawater.
  • valves (23) and (23 ') are closed, with high pressure in the osmosis chamber (20) due to the pressure supplied by the pump (30).
  • the piston is to the left of the cylinder (24) and the valves (27) and (27 ') are open, as the pressure requested by the piston on both sides is that of sea level, and the high chamber pressure ( 20) it does not arrive because the valves (23) are closed and (23 ') the piston will be in total balance. If the piston is moved from left to right, water enters through the conduit (26) through the valve (27) that is open and the one to the right of the piston comes out down the conduit (26 ') through of the valve (27 ') which is also open.
  • the placement of the same can be in the same rod, opposite 180 °, in V, radial, etc., that is, like any pump or explosion engine.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Nanotechnology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

Le système comprend une chambre intermédiaire de haute pression et deux chambres latérales auxiliaires qui peuvent être pressurisées ou non alternativement avec la chambre antérieure. La chambre intermédiaire communique au travers de ses deux extrémités avec les deux extrémités des chambres auxiliaires. Dans les conduits de communication entre les chambres, des vannes sont prévues, lesquelles occupent des positions différentes d'ouverture/fermeture. Lorsqu'une pressurisation se produit dans l'une des chambres auxiliaires de l'eau de mer que l'on introduit dans la chambre intermédiaire, le dessalement se produit par osmose inverse à travers ces deux chambres, tandis que dans l'autre chambre auxiliaire se produit simultanément le renouvellement de l'eau de mer. Dans une variante, les chambres auxiliaires peuvent être définies dans un cylindre ayant un piston coulissant, l'une et l'autre des chambres de ce cylindre communiquant avec la chambre intermédiaire de haute pression et avec le réservoir d'eau à dessaler, des vannes d'ouverture/fermeture étant montées dans les conduits de communication correspondants.
PCT/ES1997/000028 1996-02-07 1997-02-06 Systeme de dessalement de l'eau de mer par osmose inverse, avec renouvellement permanent de l'eau a dessaler WO1997029049A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU16029/97A AU1602997A (en) 1996-02-07 1997-02-06 Sea water reverse osmosis desalination system, with permanent renewal of the water to be de-salted

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ESP9600294 1996-02-07
ES09600294A ES2103211B1 (es) 1996-02-07 1996-02-07 Sistema para desalinizar agua del mar mediante osmosis inversa por camaras presurizadas.
ES09600485A ES2103240B1 (es) 1996-02-29 1996-02-29 Bomba intercambiadora de salmuera por agua del mar para osmosis inversa.
ESP9600485 1996-02-29

Publications (1)

Publication Number Publication Date
WO1997029049A1 true WO1997029049A1 (fr) 1997-08-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES1997/000028 WO1997029049A1 (fr) 1996-02-07 1997-02-06 Systeme de dessalement de l'eau de mer par osmose inverse, avec renouvellement permanent de l'eau a dessaler

Country Status (2)

Country Link
AU (1) AU1602997A (fr)
WO (1) WO1997029049A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999011360A1 (fr) * 1997-09-03 1999-03-11 Manuel Barreto Avero Dispositif de dessalement d'eau par osmose inverse pour chambres sous pression avec piston en suspension et systeme de detection du positionnement de ce dernier
WO2000000274A1 (fr) * 1998-06-30 2000-01-06 Manuel Barreto Avero Installation de dessalement de l'eau par osmose inverse a l'aide de chambres nourrices mises sous pression dans un cycle cinetique continu
WO2001005491A1 (fr) * 1999-07-19 2001-01-25 Manuel Barreto Avero Dispositif d'amortissement hydraulique pour equipement de dessalement d'eau par osmose inverse avec chambres nourrices mises sous pression dans un cycle cinetique continu
ES2153290A1 (es) * 1998-06-30 2001-02-16 Barrero Avero Manuel Desaladora de agua por osmosis inversa con camaras nodriza presurizadas en ciclo cinetico continuo.
US7901580B2 (en) 2009-06-09 2011-03-08 Salyer Ival O Method, apparatus, and processes for producing potable water utilizing reverse osmosis at ocean depth in combination with shipboard moisture dehumidification
US8282830B2 (en) 2009-06-09 2012-10-09 Salyer Ival O Method, apparatus, and processes for producing potable water utilizing reverse osmosis at ocean depth in combination with shipboard moisture dehumidification
CN105271470A (zh) * 2014-06-17 2016-01-27 王淳 一种非并网风力海水淡化联合系统及其运行控制方法
GB2540603A (en) * 2015-07-23 2017-01-25 Ide Technologies Ltd Imroved reverse osmotic process for cleaning water

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4187173A (en) * 1977-03-28 1980-02-05 Keefer Bowie Reverse osmosis method and apparatus
ES8203308A1 (es) * 1981-01-05 1982-04-01 Mesple Jose L R Sistema de desalinizacion de agua por osmosis inversa, con recuperacion de presion
US4432876A (en) * 1980-07-30 1984-02-21 Seagold Industries Corporation Reverse osmosis apparatus and method incorporating external fluid exchange
US4814086A (en) * 1985-10-03 1989-03-21 Bratt Russell I Method and apparatus for fluid treatment by reverse osmosis
US4983301A (en) * 1987-03-06 1991-01-08 Szuecz Laszlone Method and apparatus for treating fluids containing foreign materials by membrane filter equipment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4187173A (en) * 1977-03-28 1980-02-05 Keefer Bowie Reverse osmosis method and apparatus
US4432876A (en) * 1980-07-30 1984-02-21 Seagold Industries Corporation Reverse osmosis apparatus and method incorporating external fluid exchange
ES8203308A1 (es) * 1981-01-05 1982-04-01 Mesple Jose L R Sistema de desalinizacion de agua por osmosis inversa, con recuperacion de presion
US4814086A (en) * 1985-10-03 1989-03-21 Bratt Russell I Method and apparatus for fluid treatment by reverse osmosis
US4983301A (en) * 1987-03-06 1991-01-08 Szuecz Laszlone Method and apparatus for treating fluids containing foreign materials by membrane filter equipment

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999011360A1 (fr) * 1997-09-03 1999-03-11 Manuel Barreto Avero Dispositif de dessalement d'eau par osmose inverse pour chambres sous pression avec piston en suspension et systeme de detection du positionnement de ce dernier
AP1140A (en) * 1998-06-30 2003-01-29 Barreto Avero Manuel Inverse osmosis water desalinating plant fitted pressurized continuous kinetic cycle motor chamber.
ES2153290A1 (es) * 1998-06-30 2001-02-16 Barrero Avero Manuel Desaladora de agua por osmosis inversa con camaras nodriza presurizadas en ciclo cinetico continuo.
ES2158792A1 (es) * 1998-06-30 2001-09-01 Avero Manuel Barreto Desaladora de aguja por osmosis inversa con camaras nodriza presurizadas en ciclo cinetico continuo.
ES2161142A1 (es) * 1998-06-30 2001-11-16 Avero Manuel Barreto Desaladora de agua por osmosis inversa con camarasnodriza presurizadas en ciclo cinetico continuo
WO2000000274A1 (fr) * 1998-06-30 2000-01-06 Manuel Barreto Avero Installation de dessalement de l'eau par osmose inverse a l'aide de chambres nourrices mises sous pression dans un cycle cinetique continu
US6579451B1 (en) 1998-06-30 2003-06-17 Manuel Barreto Avero Water desalting installation through reverse osmosis with pressurized supply tanks in continuous kinetic cycle
AU764490B2 (en) * 1998-06-30 2003-08-21 Manuel Barreto Avero Water desalting installation through reverse osmosis with pressurized supply tanks in continuous kinetic cycle
WO2001005491A1 (fr) * 1999-07-19 2001-01-25 Manuel Barreto Avero Dispositif d'amortissement hydraulique pour equipement de dessalement d'eau par osmose inverse avec chambres nourrices mises sous pression dans un cycle cinetique continu
US7901580B2 (en) 2009-06-09 2011-03-08 Salyer Ival O Method, apparatus, and processes for producing potable water utilizing reverse osmosis at ocean depth in combination with shipboard moisture dehumidification
US8282830B2 (en) 2009-06-09 2012-10-09 Salyer Ival O Method, apparatus, and processes for producing potable water utilizing reverse osmosis at ocean depth in combination with shipboard moisture dehumidification
CN105271470A (zh) * 2014-06-17 2016-01-27 王淳 一种非并网风力海水淡化联合系统及其运行控制方法
GB2540603A (en) * 2015-07-23 2017-01-25 Ide Technologies Ltd Imroved reverse osmotic process for cleaning water

Also Published As

Publication number Publication date
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