EP2771572A2 - Échangeur de pression volumétrique pour une installation de dessalement d'eau de mer et installation de dessalement - Google Patents
Échangeur de pression volumétrique pour une installation de dessalement d'eau de mer et installation de dessalementInfo
- Publication number
- EP2771572A2 EP2771572A2 EP12798841.8A EP12798841A EP2771572A2 EP 2771572 A2 EP2771572 A2 EP 2771572A2 EP 12798841 A EP12798841 A EP 12798841A EP 2771572 A2 EP2771572 A2 EP 2771572A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- piston
- pressure
- chamber
- cylindrical body
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
- 239000013535 sea water Substances 0.000 title claims description 23
- 238000010612 desalination reaction Methods 0.000 title claims description 17
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract 4
- 239000012141 concentrate Substances 0.000 claims description 32
- 238000004891 communication Methods 0.000 claims description 12
- 238000001223 reverse osmosis Methods 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000000284 resting effect Effects 0.000 claims description 3
- 238000011033 desalting Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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
- B01D61/08—Apparatus therefor
-
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
- F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
- F04B9/109—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers
- F04B9/117—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers the pumping members not being mechanically connected to each other
- F04B9/1176—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers the pumping members not being mechanically connected to each other the movement of each piston in one direction being obtained by a single-acting piston liquid motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F13/00—Pressure exchangers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/24—Specific pressurizing or depressurizing means
- B01D2313/246—Energy recovery means
-
- 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
- C02F2303/00—Specific treatment goals
- C02F2303/10—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
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
Definitions
- volumetric pressure exchanger for a seawater desalination plant and desalination plant
- the present invention relates to a volumetric pressure exchanger for a reverse osmosis water desalination plant and a desalination plant.
- cylinder and “cylindrical” refer to a body delimited by - or a shape or surface generated by - parallel lines supported on a closed contour which may to be circular.
- a reverse osmosis module consisting of semi-permeable membranes with seawater brought to a high pressure, generally between 50 and 80, is fed. bars, higher than the osmotic pressure of salt water, which is of the order of 25 bars.
- a permeate of desalinated water which is at a pressure close to atmospheric pressure
- a water concentrate called "supersaled”. This concentrate is at a pressure slightly lower than the supply pressure, that is to say generally lower than the latter of the order of 1 to 5 bars because the pressure drop caused by the passage in the MOI is low.
- the piston of the pump separates each cylinder of the pump into a downstream chamber and an upstream chamber.
- the piston rod passes through the upstream chamber and its end is articulated to the motor drive mechanism.
- the downstream chamber is supplied with seawater by a duct equipped with a check valve and delivers the pressurized seawater to the supply duct of the MOI, itself equipped with an anti-backflow valve. -return.
- the upstream chamber of the pump is connected to the outlet pipe of the concentrate of the MOI via the three-way valve, the third channel thereof opening into a concentrate drain duct.
- the movements of the piston of the pump and valve shutter are synchronized so as, alternatively, to admit the high-pressure concentrate into the upstream chamber when the piston pushes the seawater towards the MOI and to repress this concentrate. towards the emptying during the reverse movement of the piston.
- Applicant's patent application WO201 1/058249 describes such a rotary shutter valve for a desalination plant, allowing a high flow of water without significant loss of pressure and withstanding the high pressure of the concentrate leaving the MOI.
- the subject of the invention is a volumetric pressure exchanger of the defined inlet type, comprising at least one pressure exchange unit, said pressure exchange unit comprising a hollow cylindrical body, a piston sliding in said body, said piston comprising a piston head separating the interior of said cylindrical body into a downstream chamber and an upstream chamber, said piston comprising a rod arranged on the side of the downstream chamber and passing through said downstream chamber, said downstream chamber being provided with a water intake and delivery device to be treated, said upstream chamber being provided with a three-way valve with a rotary valve, said rotary valve being rotated by motorized drive means, said valve comprising a pressurized concentrate supply port, a discharge port of said concentrate, and an opening for communication with said upstream chamber.
- said water intake and delivery device to be treated comprises a cylinder head arranged in the extension of the downstream chamber of said cylindrical body, an intake orifice with a non-return intake valve. , a discharge port with a non-return valve, said piston rod passing through said cylinder head with its end emerging outside the volumetric pressure exchanger.
- said three-way valve comprises a valve body arranged in the extension of the upstream chamber of said cylindrical body.
- the axis of rotation of the rotary plug is parallel to the axis of the cylindrical body.
- the rotary valve has a lateral opening shaped so as to allow a communication and a communication end fluids with the supply and discharge ports of the valve.
- the dynamic sealing of said valve is achieved by means of annular piston cylinders resting on the rotary plug, in particular annular piston cylinders made of low friction composite materials.
- said annular cylinder pistons are pressurized by fluid connections with the concentrate, either directly or through a pressure multiplier.
- said annular cylinder pistons are pressurized by an auxiliary hydraulic unit.
- the volumetric pressure exchanger may comprise a plurality of pressure exchange units as defined above.
- the motorized drive means comprise a common motor and means for wedging the rotary plugs evenly distributed over 360 °.
- the invention also relates to a reverse osmosis seawater desalination plant comprising a volumetric pressure exchanger as defined above.
- the number of pressure exchange units, the bore and the stroke of the cylindrical bodies are adjusted according to the available concentrate flow of the installation.
- the rotational speed of the rotary plugs is adjusted so that during each cycle, the said one or more pistons do not reach the end of high stroke.
- Figure 1 is a longitudinal sectional view of a pressure exchange unit according to the invention
- Figure 2 is a side elevational view of a rotary valve plug
- FIG. 3 is a simplified horizontal axial section showing the rotary plug of Figure 2, housed in its valve;
- Figure 4 is a schematic elevational view of a volumetric pressure exchanger comprising 6 pressure exchange units.
- FIG. 1 shows a pressure exchange unit 1 whose central part consists of a cylindrical body 2 in which a piston 3 slides, formed by a piston head 4 and a piston rod 5.
- the head piston 4 separates the interior of the cylindrical body 2 into a downstream chamber and an upstream chamber.
- the piston rod is attached to the piston head 4 on the side of the downstream chamber.
- the cylindrical body 2 is surmounted at its first end, on the side of the downstream chamber, a cylinder head 6, which is sealingly secured to the cylindrical body 2 by means of the flange type, joints and bolts, known per se.
- the cylinder head 6 carries an intake port 7 adapted to connect a seawater supply line to be treated.
- the inlet port 7 houses a non-return intake valve 8.
- the structure of such valves is in itself known to those skilled in the art.
- the cylinder head 6 also carries a discharge port 9 adapted to connect a pipe bringing seawater to the ME.
- the discharge orifice 9 also houses a check valve 10.
- the cylinder head 6 further comprises in the axial position a guide orifice January 1 for the passage of the piston rod 5, the free end of which emerges from the unit. pressure exchange 1.
- the guide orifice January 1 is provided with seals, known per se, allowing the sliding of the piston rod without significant pressure losses of the water to be treated.
- valve 12 which extends this upstream chamber and whose valve body 13 is sealed with the cylindrical body 2 by means of the type flange, seals and bolts, as known.
- the valve 12, which is an integral part of the pressure exchange unit 1, comprises a pressurized concentrate supply port 14, a discharge port 15 of said concentrate, and a communication opening 16 with said upstream chamber.
- the rotary plug 17 comprises a hollow cylindrical upper portion, which has at its upper end a wide opening of communication 16, communicating with the upstream chamber of the cylindrical body 2, and which has on its side flank a lateral opening 24 allowing alternately, depending on the position of the plug, to communicate the inside of the plug, and therefore the communication opening 16, with the feed orifice 14 or the discharge orifice 15.
- the opening 24 has a first end 28 in the form of "V", a rectangular median portion 27 and a second end in the form of "W" having two extensions 25,26.
- This particular form of the opening 24 allows progressive communication with and end of communication with the supply and discharge orifices 15 and 15, so as to eliminate sudden variations in pressure and flow in the upstream chamber of the chamber.
- pressure exchange unit In its lower part, the rotary plug 17 comprises a drive rod 18 which is intended to be connected to a mechanical drive device.
- the axis of rotation of the rotary plug 17 coincides with the axis of sliding of the rod 5, this arrangement being the simplest in terms of construction of the valve body 13 and the fixing rod 18 of the plug 17 emerging from the valve body 13 is driven by a drive device 19, itself connected to a drive motor, which can be achieved by means of toothed wheels meshing with sprockets, transmission belts or any other means known in the state of the art.
- the drive motor in particular motor gear reducer can be fixed speed or speed controlled by a drive.
- the rotary plug 17 is in permanent rotation.
- the dynamic tightness of the valve 12 is achieved without a seal, by means of pistons of annular cylinders 22, 23, resting on the rotary plug.
- the annular cylinder pistons are made of composite materials with a low coefficient of friction.
- These annular cylinder pistons can be pressurized by fluid connection with the concentrate, either directly or through a pressure multiplier. Alternatively they can be pressurized by an auxiliary hydraulic unit.
- These pistons annular cylinders press on the rotary plug, preventing the direct passage of the concentrate from the supply port 14 to the discharge port 15.
- These pistons advance in their housing as and when they wear, this which minimizes the number of maintenance stops.
- the rotary plug is preferably made of stainless steel and receives a suitable surface treatment to increase its resistance to wear and reduce the coefficient of friction.
- the pressure exchange unit whose structure has just been described functions as follows:
- the seawater supplied by a booster pump of the desalination plant, enters the cylinder head 6, and thus inside the downstream chamber of the cylindrical body 2 through the inlet orifice 7 and leaves by the discharge port 9, the inlet valves 8 and discharge 10 preventing a reverse flow.
- the rotary valve 17 of the three-way valve 12 is in constant rotation.
- the pressure of the concentrate being equal to the pressure of the seawater to be treated at the inlet of the MOI, less the pressure losses between the membranes and the exchanger, this pressure difference between the upstream chamber and the downstream chamber makes it possible to compensate said pressure drops without using high pressure pumps.
- This pressure difference can be adjusted by changing the Piston rod diameter 5.
- the rotary plug 17 gradually closes the passage of the concentrate from the feed port 14 to the upstream chamber, so that the piston 3 reaches its upper position.
- the rotary plug 17 gradually opens the communication between the upstream chamber of the cylindrical body 2 and the discharge orifice 15, so that the pressure of the concentrate in the upstream chamber of the cylinder 2 decreases.
- the discharge valve 10 closes.
- the seawater supplied by a booster pump of the desalination plant enters through the inlet valve 8 and pushes the piston 3 downwards by driving back the concentrate. Then a new cycle starts.
- Figure 4 shows a volumetric pressure exchanger comprising six pressure exchange units of the type shown in Figure 1, connected in parallel.
- An electric gear motor 21 common to the six units, rotates the six rotary bushings.
- the positions of the bushings are wedged with an offset of 60 ° relative to each other, so as to ensure operation without shock or noise of the system.
- the number, the diameter and the stroke of the cylinders are calculated according to the available flow rate of concentrate of the desalination plant in which the volumetric pressure exchanger is intended to be mounted.
- the rotational speed of the bushings is preferably adjusted so that the pistons do not arrive at the end of high stroke: by this means, the volumetric pressure exchanger is made self-adaptive to the inflow, and this in a wide flow rate range approaching zero flow, with no reduction in yield.
- the inflow of incoming seawater being always higher than the needs, the pistons descend at each cycle at the end of the low run; but the particular shape of the lateral opening of the rotary plug gradually slows down the piston so as to prevent shocks at the bottom end of the stroke.
- a polyurethane damper can be placed so as to prevent any risk of shock of this type.
- volumetric pressure exchanger offers the following characteristics and advantages: overall efficiency very high due to the low energy consumption of the distribution system and the absence of a pump pressure rise;
- the system does not require filtration of water below 50 microns.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1159647A FR2981704B1 (fr) | 2011-10-25 | 2011-10-25 | Echangeur de pression volumetrique pour une installation de dessalement d'eau de mer et installation de dessalement |
PCT/IB2012/055750 WO2013061229A2 (fr) | 2011-10-25 | 2012-10-19 | Échangeur de pression volumétrique pour une installation de dessalement d'eau de mer et installation de dessalement |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2771572A2 true EP2771572A2 (fr) | 2014-09-03 |
Family
ID=47326239
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12798841.8A Withdrawn EP2771572A2 (fr) | 2011-10-25 | 2012-10-19 | Échangeur de pression volumétrique pour une installation de dessalement d'eau de mer et installation de dessalement |
Country Status (10)
Country | Link |
---|---|
US (1) | US9700843B2 (fr) |
EP (1) | EP2771572A2 (fr) |
KR (1) | KR20140092836A (fr) |
CN (1) | CN103890390B (fr) |
AU (1) | AU2012327971B2 (fr) |
CL (1) | CL2014001037A1 (fr) |
FR (1) | FR2981704B1 (fr) |
MA (1) | MA35657B1 (fr) |
TN (1) | TN2014000171A1 (fr) |
WO (1) | WO2013061229A2 (fr) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2837824B1 (fr) | 2013-08-15 | 2015-12-30 | Danfoss A/S | Machine hydraulique, en particulier échangeur de pression hydraulique |
EP2837823B1 (fr) * | 2013-08-15 | 2017-04-26 | Danfoss A/S | Machine hydraulique, en particulier échangeur de pression hydraulique |
CN103663581A (zh) * | 2013-12-31 | 2014-03-26 | 常州鼎豪精机有限公司 | 一种高效型海水淡化装置的缸体组合结构 |
US9759054B2 (en) * | 2014-07-30 | 2017-09-12 | Energy Recovery, Inc. | System and method for utilizing integrated pressure exchange manifold in hydraulic fracturing |
US10465717B2 (en) * | 2014-12-05 | 2019-11-05 | Energy Recovery, Inc. | Systems and methods for a common manifold with integrated hydraulic energy transfer systems |
CN105114368B (zh) * | 2015-07-23 | 2017-03-01 | 西安交通大学 | 一种具有延伸进流角结构的旋转式功交换器 |
US11460050B2 (en) * | 2016-05-06 | 2022-10-04 | Schlumberger Technology Corporation | Pressure exchanger manifolding |
WO2018060755A1 (fr) | 2016-08-29 | 2018-04-05 | Arkling Limited | Installation de traitement de fluides par osmose inverse |
WO2018109521A1 (fr) | 2016-12-12 | 2018-06-21 | Arkling Limited | Dispositif de transfert de pression pour une installation de traitement de fluide par osmose inverse |
CN106630015A (zh) * | 2017-01-13 | 2017-05-10 | 四川深蓝环保科技有限公司 | 带压流体压力能回收装置 |
FR3091316B1 (fr) | 2018-10-03 | 2020-12-04 | Giraud Yves | Echangeur de pression volumetrique a effet booster et mesure de debit integree, pour une installation de dessalement d'eau de mer |
CN114504869B (zh) * | 2022-01-27 | 2023-05-23 | 浙江工业大学 | 一种便携手摇式海水淡化器 |
CN115465922B (zh) * | 2022-10-19 | 2023-08-04 | 江苏海洋大学 | 一种便携式手动现场海水采集过滤装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL51522A0 (en) | 1976-02-27 | 1977-04-29 | Ocean Water Ltd | Improvements in or relating to water purification by reverse osmosis |
WO1998022202A1 (fr) * | 1996-11-21 | 1998-05-28 | Colin Pearson | Pompes actionnees par des fluides et appareil faisant appel a de telles pompes |
FR2795141B1 (fr) | 1999-06-15 | 2001-09-07 | Bernard Marinzet | Pompe a pistons, procede et installation de filtration d'eau |
GB2357320B (en) * | 1999-12-15 | 2004-03-24 | Calder Ltd | Energy recovery device |
CN101254407A (zh) * | 2007-12-12 | 2008-09-03 | 天津大学 | 反渗透海水淡化用的三缸三活塞型能量回收器 |
FR2952691B1 (fr) * | 2009-11-16 | 2012-02-24 | Laurence Technologies Sa | Vanne a obturateur rotatif et installation de traitement d'eau comportant une telle vanne |
FR2953566B1 (fr) * | 2009-12-08 | 2012-03-09 | Laurence Technologies Sa | Pompe a piston et installation de traitement d'eau equipee d'une telle pompe |
KR20110100471A (ko) * | 2010-03-04 | 2011-09-14 | 효성굿스프링스 주식회사 | 해수 담수화 시스템의 에너지 회수장치 |
-
2011
- 2011-10-25 FR FR1159647A patent/FR2981704B1/fr active Active
-
2012
- 2012-10-19 EP EP12798841.8A patent/EP2771572A2/fr not_active Withdrawn
- 2012-10-19 US US14/354,395 patent/US9700843B2/en not_active Expired - Fee Related
- 2012-10-19 WO PCT/IB2012/055750 patent/WO2013061229A2/fr active Application Filing
- 2012-10-19 KR KR1020147012853A patent/KR20140092836A/ko not_active Application Discontinuation
- 2012-10-19 AU AU2012327971A patent/AU2012327971B2/en not_active Ceased
- 2012-10-19 CN CN201280052334.2A patent/CN103890390B/zh not_active Expired - Fee Related
-
2014
- 2014-04-21 TN TNP2014000171A patent/TN2014000171A1/fr unknown
- 2014-04-23 CL CL2014001037A patent/CL2014001037A1/es unknown
- 2014-05-23 MA MA37053A patent/MA35657B1/fr unknown
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2013061229A2 * |
Also Published As
Publication number | Publication date |
---|---|
CN103890390B (zh) | 2017-03-08 |
FR2981704A1 (fr) | 2013-04-26 |
WO2013061229A2 (fr) | 2013-05-02 |
CN103890390A (zh) | 2014-06-25 |
WO2013061229A3 (fr) | 2013-07-04 |
AU2012327971B2 (en) | 2017-01-19 |
FR2981704B1 (fr) | 2013-12-20 |
MA35657B1 (fr) | 2014-11-01 |
AU2012327971A1 (en) | 2014-05-22 |
US9700843B2 (en) | 2017-07-11 |
US20140284262A1 (en) | 2014-09-25 |
TN2014000171A1 (fr) | 2015-09-30 |
KR20140092836A (ko) | 2014-07-24 |
CL2014001037A1 (es) | 2014-07-11 |
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