WO2021047416A1 - Unité de dessalement composite à énergie de pression - Google Patents

Unité de dessalement composite à énergie de pression Download PDF

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Publication number
WO2021047416A1
WO2021047416A1 PCT/CN2020/112769 CN2020112769W WO2021047416A1 WO 2021047416 A1 WO2021047416 A1 WO 2021047416A1 CN 2020112769 W CN2020112769 W CN 2020112769W WO 2021047416 A1 WO2021047416 A1 WO 2021047416A1
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WO
WIPO (PCT)
Prior art keywords
pressure
pump
energy recovery
solenoid valve
recovery container
Prior art date
Application number
PCT/CN2020/112769
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English (en)
Chinese (zh)
Inventor
张玉新
李威
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上海瑜科环境工程有限公司
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Filing date
Publication date
Application filed by 上海瑜科环境工程有限公司 filed Critical 上海瑜科环境工程有限公司
Publication of WO2021047416A1 publication Critical patent/WO2021047416A1/fr

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    • 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
    • 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
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/005—Processes using a programmable logic controller [PLC]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/03—Pressure
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/06—Pressure conditions
    • C02F2301/066—Overpressure, high pressure
    • 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

Definitions

  • the invention relates to the technical field of fluid mechanical engineering, in particular to a pressure-energy composite desalination unit.
  • the equipment used in the typical domestic desalination process is mainly composed of lift pumps, ultrafiltration, booster pumps, security filters, high pressure pumps, energy recovery devices and reverse osmosis membrane modules.
  • the overall structure is complex and covers a large area.
  • the reverse osmosis desalination process consumes a lot of electricity to increase the inlet pressure to overcome the osmotic pressure of the brine.
  • the residual pressure of the concentrated brine discharged from the reverse osmosis membrane is as high as 4.5 ⁇ 5.0MPa. Calculated according to the 40% water production rate, the discharged concentrated brine is still Contains about 60% of the influent residual pressure energy. Recycling this part of energy into influent energy can greatly reduce the energy consumption of reverse osmosis desalination. To achieve this goal, it depends on the use of energy recovery technology.
  • a pressure-energy composite desalination unit which includes:
  • Membrane pump subsystem which includes a high-pressure pump M1, a circulating pump M2, and a membrane module with multiple reverse osmosis membranes arranged in parallel;
  • the liquid inlet and discharge subsystem which includes the brine pre-liquid inlet and the liquid outlet, and is used to feed liquid into the pressure energy recovery container through the brine pre-liquid inlet before the membrane pump subsystem works, and work in the membrane pump subsystem
  • the water supply and drainage pump M3 that drains the concentrated brine from the pressure energy recovery container through the discharge port after the predetermined reverse osmosis time;
  • the circulating pump M2 is set to be able to send salt water from the pressure energy recovery container to the membrane module for reverse osmosis when the membrane pump subsystem is working, and the high-pressure pump M1 is set to be able to transfer the salt water from the membrane pump while the circulating pump M2 is working.
  • the sub-system's salt water constant inlet is supplemented to the pressure energy recovery container to maintain the normal working system pressure.
  • the membrane module is provided with a total salt water inlet connected to the circulating pump M2, a total fresh water outlet for outputting fresh water, and a pressure energy recovery container Connected to return the produced concentrated brine to the total concentrated water outlet of the pressure energy recovery vessel.
  • the water supply and drainage pump is responsible for the water inlet before the system work and the drainage after the work is completed, which can save the time of salt water supply and the discharge time of concentrated brine, and improve work efficiency;
  • the normal working system pressure is maintained by the high-pressure pump to overcome the osmotic pressure of the seawater;
  • the circulating pump provides power to overcome the membrane resistance of the reverse osmosis membrane and maintain the system circulation;
  • multiple reverse osmosis membranes in the membrane module are arranged in parallel, which greatly saves the unit Covers an area, each reverse osmosis membrane has its own membrane shell for easy maintenance, and as long as the initial system pressure is greater than the osmotic pressure, the higher the circulation pressure will be.
  • the last stage membrane without a series reverse osmosis membrane structure may not meet the pressure
  • the entire process does not require a valve to adjust the system pressure; moreover, the setting of the pressure energy recovery container allows the concentrated brine with residual pressure at the outlet of the membrane module to be directly recovered, and the energy recovery efficiency is as high as 99%-99.5%; due to the membrane pump
  • the reverse osmosis can perform multiple cycles and reach the predetermined reverse osmosis time, and then use the water supply and drainage pump M3 in the liquid inlet and discharge subsystem to discharge, so that the concentrated brine can be flexibly adjusted in a larger range
  • the residual pressure of concentrated brine is reused along with the production cycle of fresh water to realize system energy recovery.
  • it can save electricity by 10%-20%.
  • the above-mentioned membrane pump subsystem also has a flushing fresh water inlet, and the membrane pump subsystem is arranged to suck in fresh water through the flushing fresh water inlet to the high-pressure pump M1, the circulating pump M2, and The membrane module and the pressure energy recovery container are flushed, and the liquid inlet and discharge subsystem is configured to be able to use the water supply and drainage pump to remove the pressure energy in the pressure energy recovery container after the flushing is performed for a predetermined flushing time.
  • the flushing water is drawn out and drained through the drain
  • the fresh water is used to flush the membrane module and the pressure energy recovery container through the high pressure pump and the circulating pump.
  • the high pressure pump, the circulating pump, the membrane module, and the pressure energy recovery container are all cleaned completely.
  • the water supply and drainage pumps are also cleaned, so that the working reliability and service life of the entire unit are greatly improved, and the failure rate of the unit is reduced.
  • the above-mentioned liquid inlet and discharge subsystem includes a liquid inlet pipeline and a liquid discharge pipeline, wherein a solenoid valve X6, a check valve C3, the aforementioned water supply and drainage pump M3, and a solenoid valve X8 are sequentially arranged on the liquid inlet pipeline, so that Salt water can enter the pressure energy recovery container from the salt water pre-inlet port through the solenoid valve X6, the check valve C3, the water supply and drainage pump M3, and the solenoid valve X8, and the solenoid valve X1 and the reverse valve are arranged in sequence on the drain pipeline.
  • the check valve C3, the water supply and drainage pump M3, and the solenoid valve X7 enable the concentrated brine or flushing water in the pressure energy recovery container 1 to pass through the solenoid valve X1, the check valve C3, the water supply and drainage pump M3, and the solenoid valve X7, Finally, it is discharged from the above-mentioned drain port.
  • a safety filter, a one-way valve, and a manual valve H5 are arranged in sequence behind the solenoid valve X8 on the above-mentioned liquid inlet pipeline.
  • the setting of the security filter can filter the brine that enters the pressure energy recovery container 1, so that the particle size and microbial content therein meet the desalination requirements.
  • the above-mentioned membrane pump subsystem includes a pressure maintaining pipeline and a reverse osmosis pipeline each provided with the flushing fresh water inlet, wherein the pressure maintaining pipeline is sequentially provided with a solenoid valve X5, the above-mentioned high-pressure pump M1, and a check valve C2.
  • the salt water can enter the pressure energy recovery container from the above-mentioned salt water normal inlet through the solenoid valve X5, the above high-pressure pump M1, and the check valve C2, or the fresh water can enter the above-mentioned pressure energy recovery container from the corresponding flushing fresh water inlet through the solenoid valve X4, the said The high pressure pump M1 and the check valve C2 enter the pressure energy recovery container; the above reverse osmosis pipeline is provided with a solenoid valve X2, the above circulation pump M2, the above membrane module, and the check valve C1 in sequence, so that the pressure energy recovery container
  • the brine can enter the membrane module through the solenoid valve X2 and the circulating pump M2 for reverse osmosis, and the concentrated brine from the membrane module can be returned to the pressure energy recovery container through the check valve C1, or the fresh water can be flushed from the corresponding fresh water
  • the inlet enters the pressure energy recovery container through the solenoid valve X2, the circulating pump M2, the membrane module
  • the pressure maintaining pipeline is also provided with a manual valve H1 after the high-pressure pump M1 and a manual valve H5 after the check valve C2;
  • the reverse osmosis pipeline is also provided with a manual valve H5 after the circulation pump M2.
  • the pressure energy recovery container is also provided with a mechanical pressure relief valve, a solenoid valve X9 integrating exhaust, air intake and high pressure protection, and a pressure sensor P1.
  • the above-mentioned pressure-energy composite desalination unit also includes a PLC controller, which is electrically connected with all the above-mentioned pumps, solenoid valves, sensors and other related electrical components, so that the whole unit realizes the full automation of the work flow and operation. Simple and efficient.
  • each of the plurality of reverse osmosis membranes has a sub-salt water inlet connected to the total salt water inlet, a sub-fresh water outlet connected to the total fresh water outlet, and a sub-concentrated water outlet connected to the total concentrated water outlet, and the flushing water passes through The total concentrated water outlet enters the pressure energy recovery container.
  • Fig. 1 is a schematic structural diagram of a pressure-energy composite desalination unit according to a specific embodiment of the present invention, and each arrow in the figure shows the direction of liquid flow.
  • the "desalination” referred to in this article includes seawater desalination, brackish water desalination, industrial wastewater desalination, etc.; the “brine water” referred to in this article includes seawater, brackish water, industrial wastewater and other water with high salt content.
  • the pressure energy composite desalination unit includes a pressure energy recovery container 1, a membrane pump subsystem, and a liquid inlet and discharge subsystem.
  • the membrane pump subsystem includes a high-pressure pump M1 and a circulation system.
  • the liquid inlet and discharge subsystem includes a brine pre-inlet 31, a liquid outlet 33, and a brine pre-inlet port before the membrane pump subsystem works.
  • the liquid inlet 31 feeds liquid into the pressure energy recovery container 1 and discharges the concentrated brine 6 from the pressure energy recovery container 1 through the liquid discharge port 33 after the membrane pump subsystem works for a predetermined reverse osmosis time T1;
  • the circulating pump M2 is set to be able to send the brine from the pressure energy recovery vessel 1 to the membrane module for reverse osmosis when the membrane pump subsystem is working, and the high-pressure pump M1 is set to be able to transfer the brine 5 from the membrane pump while the circulating pump M2 is working.
  • the salt water constant inlet 11 of the subsystem is supplemented to the pressure energy recovery container 1 to maintain the normal working system pressure.
  • the membrane module is provided with a total salt water inlet 21 connected to the circulating pump M2, a total fresh water outlet 23 for outputting fresh water 7 and It is connected to the pressure energy recovery container 1 to return the produced concentrated brine to the total concentrated water outlet 25 of the pressure energy recovery container 1.
  • the above-mentioned membrane pump subsystem also has flushing fresh water inlets 12, 22, and the membrane pump subsystem is arranged to suck in fresh water through the flushing fresh water inlets 12, 22 after the liquid inlet and drainage subsystem discharges liquid.
  • the high-pressure pump M1, the circulating pump M2, the membrane module, and the pressure energy recovery container 1 are flushed, and the above-mentioned liquid inlet and discharge subsystem is arranged to be able to use the water supply and drain pump M3 to reduce the pressure after the flushing is performed for a predetermined flushing time T2.
  • the flushing water in the recovery container 1 is drawn out and drained through the drain port 33.
  • the above-mentioned liquid inlet and discharge subsystem includes a liquid inlet pipe 30 and a liquid discharge pipe 40, wherein the liquid inlet pipe 30 is sequentially provided with a solenoid valve X6, a check valve C3, and a water supply pipe.
  • the drain pump M3 and the solenoid valve X8 enable the brine to enter the pressure energy recovery vessel 1 from the brine pre-inlet port 31 through the solenoid valve X6, the check valve C3, the water supply and drainage pump M3 and the solenoid valve X8, and the drain line 40 is provided with solenoid valve X1, check valve C3, water supply and drainage pump M3, solenoid valve X7 in sequence, so that the concentrated brine or flushing water in the pressure energy recovery container 1 can pass through solenoid valve X1, check valve C3, water supply and drainage
  • the pump M3 and the solenoid valve X7 are finally discharged from the discharge port 33.
  • the membrane pump subsystem is working for the predetermined reverse osmosis time T1
  • the water discharged by the liquid inlet and discharge subsystem is concentrated brine
  • the membrane pump subsystem is discharged by the inlet liquid after the predetermined flushing time T2.
  • the drainage discharged by the system is flush water.
  • a safety filter 3, a one-way valve 4, and a manual valve H5 are arranged in sequence behind the solenoid valve X8 on the above-mentioned liquid inlet pipeline.
  • the above-mentioned membrane pump subsystem includes a pressure maintaining pipe 10 and a reverse osmosis pipe 20 each provided with a flushing fresh water inlet, that is, the pressure maintaining pipe 10 has a flushing fresh water inlet 12, and the reverse osmosis pipe 20 has a flushing fresh water inlet 22.
  • solenoid valve X5, high pressure pump M1, check valve C2 are arranged in order on pressure maintaining pipeline 10, so that salt water can enter through solenoid valve X5, high pressure pump M1, check valve C2 from salt water normal inlet 11
  • the pressure energy recovery container 1, or the fresh water can enter the pressure energy recovery container 1 from the flushing fresh water inlet 12 of the pressure maintaining pipeline 10 through the solenoid valve X4, the high pressure pump M1, and the check valve C2;
  • the above reverse osmosis pipeline 20 is arranged in sequence
  • solenoid valve X2, circulating pump M2, membrane module, and check valve C1 so that the brine in the pressure energy recovery container 1 can enter the membrane module through the solenoid valve X2 and the upper ring pump M2 for reverse osmosis, and exit from the membrane module.
  • the concentrated brine is returned to the pressure energy recovery container 1 through the check valve C1, or the fresh water can enter the pressure energy recovery container 1 from the flushing fresh water inlet 22 through the solenoid valve X2, the circulating pump M2, the membrane module, and the check valve C1.
  • the pressure maintaining pipeline 10 is also provided with a manual valve H1 located after the high-pressure pump M1 and a manual valve H5 located after the check valve C2;
  • the reverse osmosis pipeline 20 is also provided with a manual valve H5 located after the circulating pump M2
  • the pressure energy recovery container 1 is also provided with a mechanical pressure relief valve 14 for collecting exhaust , Intake and high pressure protection in one solenoid valve X9, and pressure sensor P1.
  • the pressure-energy composite desalination unit also includes a PLC controller (not shown), which is electrically connected to all the above-mentioned pumps, solenoid valves, and sensors to perform fully automatic linkage control on them.
  • a pressure gauge 26 can be installed at the total brine inlet 21 on the reverse osmosis pipeline 20 to grasp the pressure of the brine entering the membrane module at any time to ensure that the pressure of the brine entering the membrane module is greater than the osmotic pressure of the brine, thereby ensuring that the membrane
  • the normal reverse osmosis of the components is carried out.
  • each reverse osmosis membrane 2 has a sub-salt water inlet 210 connected to the total salt water inlet 21, a sub-fresh water outlet 230 connected to the total fresh water outlet 23, and a sub-fresh water outlet 230 connected to the total concentrated water.
  • the concentrated water outlet 250 is connected to the outlet 25.
  • the flushing water enters the pressure energy recovery container 1 through the total concentrated water outlet 25. This is because the flushing pressure is much lower than the osmotic pressure of the salt water, so no fresh water is produced during the flushing process.
  • the total fresh water outlet 23 does not produce water.
  • the invention integrates reverse osmosis, energy recovery and flushing functions, reduces energy consumption, has a more compact structure, a small footprint, high water output efficiency, and is easy to repair and maintain.
  • the regular flushing function also makes the unit a lower failure rate and a longer service life.
  • solenoid valve X1, solenoid valve X2, solenoid valve X3, solenoid valve X4, solenoid valve X5, solenoid valve Valve X6, solenoid valve X7, solenoid valve X8, solenoid valve X9 are normally closed, manual valve H1, manual valve H2, manual valve H3, manual valve H4, manual valve H5 are normally open (the setting of each manual valve is for the maintenance of the unit ).
  • the high-pressure pump M1 maintains the pressure of the system for reverse osmosis, and the circulating pump M2 circulates the brine through the membrane module. After running for a predetermined reverse osmosis time T1, the brine in the pressure energy recovery container 1 reaches a predetermined concentration. At this time, close the high-pressure pump M1 and the circulating pump M2 and solenoid valve X2, solenoid valve X5, and open solenoid valve X1 and solenoid valve X7 to relieve pressure;
  • the product has the characteristics of high efficiency and energy saving (power saving), the energy consumption per ton of fresh water is lower than the European standard (3.3kWh/T), and the small unit reaches 2.5 ⁇ 3.2kWh/T (domestic similar products) :8 ⁇ 10kWh/T), large-scale units have reached 2.3 ⁇ 2.5kWh/T (domestic similar products 4 ⁇ 6kWh/T);
  • the concentration of concentrated water and fresh water can be flexibly adjusted according to needs in a larger range, for example, by changing the value of the predetermined reverse osmosis time T1;
  • the "membrane pump subsystem” is perfectly combined and matched with the "pressure energy recovery container", which not only has the function of reverse osmosis but also realizes the function of system energy recovery. Compared with the traditional desalination system, it saves about 60% of the floor space. And realized the energy saving of the whole system;

Abstract

L'invention concerne une unité de dessalement composite à énergie de pression, comprenant un récipient de récupération à énergie de pression (1), un sous-système de pompe à membrane et un sous-système d'admission et de sortie de liquide. Le sous-système de pompe à membrane comprend une pompe haute pression M1, une pompe de circulation M2 et un ensemble membrane doté de multiples membranes d'osmose inverse (2) disposées en parallèle ; le sous-système d'admission et de sortie de liquide comprend une ouverture de préadmission de liquide d'eau salée (31), une ouverture de sortie de liquide (33) et une pompe d'alimentation en eau et d'évacuation M3 utilisée pour introduire un liquide dans le récipient de récupération à énergie de pression (1) avant l'opération et l'évacuation de la saumure (6) après l'opération ; la pompe de circulation M2 est configurée de façon à transférer de l'eau salée (5) du récipient de récupération à énergie de pression (1) vers l'ensemble membrane pour réaliser une osmose inverse pendant l'opération, la pompe haute pression M1 est configurée de façon à ajouter de l'eau salée (5) dans le récipient de récupération à énergie de pression (1) tandis que la pompe de circulation fonctionne de manière à maintenir la pression du système, et l'ensemble membrane est pourvu d'une ouverture d'admission principale d'eau salée (21), une ouverture de sortie principale d'eau douce (23) et une ouverture de sortie principale de saumure (25) renvoyant la saumure produite (6) dans le récipient de récupération à énergie de pression (1).
PCT/CN2020/112769 2019-09-11 2020-09-01 Unité de dessalement composite à énergie de pression WO2021047416A1 (fr)

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Application Number Priority Date Filing Date Title
CN201910860884.0A CN110526338A (zh) 2019-09-11 2019-09-11 压能复合型脱盐机组
CN201910860884.0 2019-09-11

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WO2021047416A1 true WO2021047416A1 (fr) 2021-03-18

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110526339A (zh) * 2019-09-11 2019-12-03 上海瑜科环境工程有限公司 压能复合型脱盐工艺
CN110526338A (zh) * 2019-09-11 2019-12-03 上海瑜科环境工程有限公司 压能复合型脱盐机组

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090110563A1 (en) * 2007-10-25 2009-04-30 Ebara Corporation Power recovery system
DE102008046168A1 (de) * 2008-09-06 2010-03-11 Danfoss A/S Axialkolbenmaschine und Umkehrosmoseeinrichtung
CN102267743A (zh) * 2010-05-17 2011-12-07 株式会社东芝 海水脱盐装置
CN102743974A (zh) * 2011-04-22 2012-10-24 株式会社荏原制作所 海水淡化系统及能量交换腔
CN203112553U (zh) * 2013-02-01 2013-08-07 北京碧水源膜科技有限公司 一种反渗透膜闭路循环装置
US20160346735A1 (en) * 2015-05-29 2016-12-01 Hitachi, Ltd. Water treatment system
CN107308816A (zh) * 2017-08-23 2017-11-03 国家海洋局天津海水淡化与综合利用研究所 反渗透海水淡化能量回收器
CN110526338A (zh) * 2019-09-11 2019-12-03 上海瑜科环境工程有限公司 压能复合型脱盐机组
CN110526339A (zh) * 2019-09-11 2019-12-03 上海瑜科环境工程有限公司 压能复合型脱盐工艺
CN210736277U (zh) * 2019-09-11 2020-06-12 上海瑜科环境工程有限公司 压能复合型脱盐机组
CN111517414A (zh) * 2020-04-15 2020-08-11 上海瑜科环境工程有限公司 压能复合型脱盐工艺

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090110563A1 (en) * 2007-10-25 2009-04-30 Ebara Corporation Power recovery system
DE102008046168A1 (de) * 2008-09-06 2010-03-11 Danfoss A/S Axialkolbenmaschine und Umkehrosmoseeinrichtung
CN102267743A (zh) * 2010-05-17 2011-12-07 株式会社东芝 海水脱盐装置
CN102743974A (zh) * 2011-04-22 2012-10-24 株式会社荏原制作所 海水淡化系统及能量交换腔
CN203112553U (zh) * 2013-02-01 2013-08-07 北京碧水源膜科技有限公司 一种反渗透膜闭路循环装置
US20160346735A1 (en) * 2015-05-29 2016-12-01 Hitachi, Ltd. Water treatment system
CN107308816A (zh) * 2017-08-23 2017-11-03 国家海洋局天津海水淡化与综合利用研究所 反渗透海水淡化能量回收器
CN110526338A (zh) * 2019-09-11 2019-12-03 上海瑜科环境工程有限公司 压能复合型脱盐机组
CN110526339A (zh) * 2019-09-11 2019-12-03 上海瑜科环境工程有限公司 压能复合型脱盐工艺
CN210736277U (zh) * 2019-09-11 2020-06-12 上海瑜科环境工程有限公司 压能复合型脱盐机组
CN111517414A (zh) * 2020-04-15 2020-08-11 上海瑜科环境工程有限公司 压能复合型脱盐工艺

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