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WO2019024070A1 - Système de dessalement efficace de l'eau de mer utilisant une nouvelle énergie - Google Patents

Système de dessalement efficace de l'eau de mer utilisant une nouvelle énergie Download PDF

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Publication number
WO2019024070A1
WO2019024070A1 PCT/CN2017/095957 CN2017095957W WO2019024070A1 WO 2019024070 A1 WO2019024070 A1 WO 2019024070A1 CN 2017095957 W CN2017095957 W CN 2017095957W WO 2019024070 A1 WO2019024070 A1 WO 2019024070A1
Authority
WO
WIPO (PCT)
Prior art keywords
cavity
seawater
hydraulic cylinder
cylinder
reverse osmosis
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.)
Ceased
Application number
PCT/CN2017/095957
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English (en)
Chinese (zh)
Inventor
汪春
顾为东
张锦民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Non Grid Connected Amperex Technology Ltd
Original Assignee
Nanjing Non Grid Connected Amperex Technology Ltd
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 Nanjing Non Grid Connected Amperex Technology Ltd filed Critical Nanjing Non Grid Connected Amperex Technology Ltd
Priority to JP2020504316A priority Critical patent/JP6940680B2/ja
Priority to PCT/CN2017/095957 priority patent/WO2019024070A1/fr
Publication of WO2019024070A1 publication Critical patent/WO2019024070A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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

Definitions

  • the invention relates to a new energy efficient seawater desalination system, belonging to the technical field of seawater desalination.
  • Reverse osmosis desalination is one of the mainstream technologies for desalination.
  • the reverse osmosis desalination process consumes a large amount of electric energy to increase the inlet pressure to overcome the osmotic pressure of water.
  • the residual pressure of the reverse osmosis membrane is up to 5 MPa, and the concentrated brine is discharged. It also contains about 60% of the feed water pressure energy. Converting this part of the energy into the influent energy can greatly reduce the energy consumption of reverse osmosis seawater desalination, and this purpose depends on the use of energy recovery technology.
  • the technical problem to be solved by the present invention is that in the prior art, the seawater desalination system has a large occupied area, the energy recovery and the high pressure pump are separate units, so that the system structure is not compact, the manufacturing is difficult, and the cost is high, and a problem is proposed.
  • a new energy efficient seawater desalination system that integrates seawater's reverse osmosis desalination unit and energy recovery into a tower of a wind turbine to significantly reduce floor space and cost.
  • a new energy efficient seawater desalination system comprising a fan, a reverse osmosis seawater desalination device and a supercharging device, wherein the reverse osmosis seawater desalination device and the supercharging device are installed in the fan
  • the tower of the fan is provided with a low pressure fresh sea water inlet and a low pressure concentrated sea water outlet;
  • the pressurization device includes a control device, a first water tank mounted on the frame, a second water tank, and a respectively a first hydraulic cylinder and a second hydraulic cylinder disposed in the first water cylinder and the second water cylinder, wherein a piston rod of the first hydraulic cylinder is fixed on a cylinder of the first water cylinder, the first hydraulic cylinder
  • the cylinder block doubles as the piston rod of the first water cylinder
  • the cylinder of the first hydraulic cylinder divides the first water tank into a first cavity and a second cavity
  • the piston rod of the second hydraulic cylinder is fixed at the
  • the cylinder of the second hydraulic cylinder doubles as the piston rod of the second hydraulic cylinder
  • the cylinder of the second hydraulic cylinder divides the second water cylinder into the third cavity and the fourth cavity body;
  • the rotating shaft of the fan directly drives a plunger pump to drive the first hydraulic cylinder and the second hydraulic cylinder;
  • the low pressure fresh seawater inlet communicates with the second cavity and the fourth cavity respectively through the first liquid inlet check valve and the second liquid inlet check valve; the second cavity and the fourth cavity respectively pass the first
  • the liquid discharge check valve and the second liquid discharge check valve are in communication with the reverse osmosis membrane group of the reverse osmosis seawater desalination device; the high pressure concentrated seawater outlet of the reverse osmosis membrane membrane group passes through the first water distribution valve and the second water distribution valve respectively
  • the first cavity and the third cavity are in communication; the first cavity and the third cavity are respectively connected to the low-pressure concentrated seawater outlet through the fifth one-way drain valve and the sixth drain check valve;
  • the control device controls the high-pressure concentrated seawater discharged from the reverse osmosis membrane group to enter the first cavity, and the high-pressure concentrated seawater and the first hydraulic cylinder are compressed together.
  • the fourth chamber of the second tank is filled with low-pressure fresh seawater
  • the third chamber is discharged with low-pressure concentrated seawater
  • the second tank is supplied with fresh seawater to the reverse osmosis membrane group.
  • the control device controls the high-pressure concentrated seawater discharged from the reverse osmosis membrane group to enter the third cavity, and the high-pressure concentrated seawater and the second hydraulic cylinder jointly compress the low-pressure fresh seawater that has entered the fourth cavity, and at the same time, the first The second chamber of the water tank is filled with low pressure fresh sea water, and the first chamber discharges low pressure concentrated sea water.
  • the invention integrates the reverse osmosis desalination and supercharging device into the tower body of the wind turbine, greatly reduces the floor space, and conforms to the existing environmental characteristics of the south island reef, and is convenient for application.
  • the supercharging device of the present invention includes the first and second hydraulic cylinders and the first One or two water tanks, and in the implementation, the first and second hydraulic cylinders are respectively arranged in the first and second water cylinders to form a composite cylinder body, so that the piston of the hydraulic cylinder is compared with the hydraulic cylinder and the water cylinder.
  • the length of the rod can be greatly reduced, so that the height of the supercharging device can be greatly reduced, thereby reducing the height of the tower body, greatly improving the reliability of the fan and the stability of the entire des
  • the present invention adopts the above technical solution to have the following beneficial effects: 1) since the high pressure concentrated seawater directly enters the first cavity and the third cavity, and is used for compressing the low pressure fresh seawater in the second cavity and the fourth cavity, Directly utilizing the energy in the high-pressure concentrated seawater, the energy recovery and utilization rate is improved; 3) due to the desalination treatment
  • the integration with the energy recovery device shortens the intermediate step, reduces the energy loss of the high-pressure concentrated seawater, improves the energy recovery utilization rate, and the mechanism is simpler and the cost is reduced.
  • An improvement of the above technical solution is that it further includes a buffer tank disposed in front of the reverse osmosis membrane group for buffering high pressure fresh sea water that is about to enter the reverse osmosis membrane group. Since the buffer tank is arranged in the seawater desalination treatment device, the impact of the high-pressure fresh seawater on the reverse osmosis membrane group is reduced, the reverse osmosis membrane group is prevented from being damaged, and the service life is prolonged.
  • An improvement of the above technical solution is to further include a generator powered by a fan and a power storage device connected to the generator, the power storage device supplying power to the control device.
  • the direct use of wind turbines to power the control unit not only makes full use of clean energy, but also reduces the dependence on the grid and protects the environment.
  • FIG. 1 is a schematic structural view of a new energy efficient seawater desalination system according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a fan.
  • Figure 3 is a schematic diagram of the structure of the backup energy supply device.
  • the reference numerals in the figure are as follows: 1-first inlet check valve; 2-second cavity; 3-second liquid inlet check valve; 4-fourth cavity; 5-first water tank; Two water tank; 7-first drain check valve; 8-second drain check valve; 9-third drain check valve; 10-four drain check valve; 11-first cavity ; 12 - third cavity; 13 - fifth one-way drain valve; 14 - sixth discharge check valve; 15- first hydraulic cylinder; 16 - second hydraulic cylinder; 21 - buffer tank; Permeable membrane group; 23-fresh water collection device; 24-first hydraulic pump; 25-second hydraulic pump; 26-fan; 29-shaft; 30-impeller; 31-tower; 32-low pressure fresh seawater inlet; Low-pressure concentrated seawater outlet; 34-motor; 35-non-grid multi-energy coordinated power supply; 36-grid; 37-solar; 38-biomass; 39-tidal energy.
  • the new energy efficient seawater desalination system of the present embodiment includes a fan 26, a reverse osmosis seawater desalination device 22, and a supercharging device.
  • the fan 26 includes an impeller 30, a rotating shaft 29, and a tower body 31.
  • the reverse osmosis desalination device 22 and the supercharging device are both installed in the tower body 31 of the fan 26, and the tower body 31 of the fan 26 is shown.
  • the pressurizing device includes a control device, a first water tank 5 mounted on the frame, a second water tank 6, and a first hydraulic cylinder 15 respectively sleeved in the first water tank 5 and the second water tank 6 and a second hydraulic cylinder 16, the piston rod of the first hydraulic cylinder 15 is fixed to the cylinder of the first water cylinder 5, and the cylinder of the first hydraulic cylinder 15 doubles a piston rod of the first water cylinder 5, the cylinder of the first hydraulic cylinder 15 partitions the first water tank 5 into a first cavity and a second cavity 2, and a piston rod of the second hydraulic cylinder 16 Fixed to the cylinder of the second water tank 6, the cylinder of the second hydraulic cylinder 16 doubles as the piston rod of the second water cylinder 6, and the cylinder of the second hydraulic cylinder 16 divides the second water cylinder 6 into The third cavity 12 and the fourth cavity 4.
  • the first hydraulic cylinder 15 and the second hydraulic cylinder 16 are driven by a first hydraulic pump 24 and a second hydraulic pump 25, respectively, and the first hydraulic pump 24 and the second hydraulic pump 25 each employ a plunger pump.
  • the rotating shaft 29 of the fan 26 directly supplies power to two plunger pumps.
  • the first hydraulic pump 24 and the second hydraulic pump 25 are respectively connected to the process chamber and the return chamber of the first hydraulic cylinder 15 and the second hydraulic cylinder 16, and the cylinders for driving the first hydraulic cylinder 15 and the second hydraulic cylinder 16 are respectively
  • the cylinders are reciprocated along the cylinders of the first water tank 5 and the second water tank 6, thereby compressing fresh sea water.
  • the low pressure fresh seawater inlet 32 communicates with the second cavity 2 and the fourth cavity 4 through the first liquid inlet check valve 1 and the second liquid inlet check valve 3, respectively; the second cavity 2 and the fourth cavity
  • the chamber 4 communicates with the reverse osmosis membrane group 22 of the reverse osmosis seawater desalination device through the first drain check valve 7 and the second drain check valve 8 respectively; the high pressure concentrated seawater outlet of the reverse osmosis membrane group 22 passes through
  • the three-drain check valve 9 and the fourth drain check valve 10 are in communication with the first cavity 11 and the third cavity 12, respectively; the first cavity 11 and the third cavity 12 respectively pass the fifth one-way
  • the drain valve 13 and the sixth drain check valve 14 are in communication with the low pressure concentrated seawater outlet 33.
  • the first hydraulic cylinder 15 and the second hydraulic cylinder 16 adopt a differential fit, that is, when the first water tank 5 delivers fresh seawater to the reverse osmosis membrane group 22, the control device controls the discharge of the reverse osmosis membrane group 22.
  • the high-pressure concentrated seawater enters the first cavity 11, and the high-pressure concentrated seawater and the first hydraulic cylinder 15 collectively compress the low-pressure fresh seawater that has entered the second cavity 2, and at the same time, the fourth cavity 4 of the second water tank 6
  • the low pressure fresh seawater is supplemented, the third cavity 12 discharges the low pressure concentrated seawater; when the second water tank 6 delivers the fresh seawater to the reverse osmosis membrane group 22, the control device controls the high pressure concentrated seawater discharged from the reverse osmosis membrane group 22 to enter the third
  • the cavity 12 the high-pressure concentrated seawater and the second hydraulic cylinder 16 jointly compress the low-pressure fresh seawater that has entered the fourth cavity 4, while the second cavity 2 of the first water tank 5 supplements the low-pressure fresh seawater,
  • a cavity 11 discharges low pressure concentrated seawater. This repeats the above two-way process.
  • the present embodiment can also be used in the buffer tank 21 before the reverse osmosis membrane group 22 for buffering the reverse osmosis membrane group 22 High pressure fresh sea water.
  • control device can be powered by a battery, but in order to better utilize the wind energy, the embodiment preferably drives the generator to generate electricity by the fan 26, and then stores the power through the power storage device for the control device. powered by.
  • first hydraulic pump 24 and the second hydraulic pump 25 are provided with an accumulator 20 on the output line.
  • the accumulator 20 absorbs energy, and the hydraulic pressure is small, releasing energy, thereby adjusting the output tube.
  • the pressure on the road remains relatively stable.
  • the embodiment is further provided with a backup energy supply device.
  • the backup energy supply device is composed of an electric motor 34 and a non-grid multi-energy cooperative power supply device 35, which is not connected to the network.
  • the multi-energy coordinated power supply device 35 is used to supply power to the motor 34.
  • the motor 34 is used to drive the first hydraulic pump 24 and the second hydraulic pump 25.
  • the motor 34 and the blower 26 are switched by the clutch.
  • the generator 27 does not operate.
  • the control system ensures that the power storage device 27a uses the stored electrical energy to normally supply power to the cylinder control device.
  • the non-grid multi-energy coordinated power supply device 35 includes a power grid 36, solar energy 37, biomass energy 38, and tidal energy 39. Since the output of the biomass energy 38 is relatively stable and is less affected by the environment, the specific gravity is fixed in the non-grid-connected multi-energy coordinated power supply device 35. During the daytime, the sun is sufficient, and the solar energy 36 is integrated into the non-grid multi-energy cooperative power supply unit 35 to supply power.
  • the solar energy 37 is combined with the non-grid multi-energy cooperative power supply device 35 to supply power, when the solar energy 37, biomass
  • the power grid 36 is integrated into the non-grid-connected multi-energy coordinated power supply device 35 to supply power.
  • the present invention is not limited to the above embodiments, and the seawater desalination treatment apparatus of the present embodiment is only one set, and a plurality of sets of seawater desalination apparatuses can be provided according to the production demand. Any technical solution formed by equivalent replacement falls within the scope of protection required by the present invention.

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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)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

L'invention concerne un système de dessalement efficace de l'eau de mer utilisant une nouvelle énergie se rapportant au domaine des technologies de dessalement de l'eau de mer. Le système comprend un ventilateur (26), un dispositif de dessalement d'eau de mer par osmose inverse (22) et un dispositif de suralimentation. Le dispositif de dessalement d'eau de mer par osmose inverse (22) et le dispositif de suralimentation sont tous deux montés dans un corps de tour (31) du ventilateur (26). Le corps de tour (31) du ventilateur (26) est pourvu d'une entrée d'eau de mer fraîche basse pression (32) et d'une sortie d'eau de mer concentrée basse pression (33). Le dispositif de suralimentation comprend un dispositif de commande, un premier réservoir d'eau (5) et un second réservoir d'eau (6) montés sur un cadre, ainsi qu'un premier vérin hydraulique (15) et un second vérin hydraulique (16) disposés respectivement dans le premier réservoir d'eau (5) et le second réservoir d'eau (6). Une tige de piston du premier vérin hydraulique (15) est fixée sur le corps de cylindre du premier réservoir d'eau (5), et une tige de piston du second vérin hydraulique (16) est fixée sur le corps de cylindre du second réservoir d'eau (6). Le système peut réduire considérablement la surface utile, améliorer le taux de récupération d'énergie d'eau de mer concentrée haute pression, et possède un mécanisme optimisé, ce qui réduit les coûts et les taux de défaillance.
PCT/CN2017/095957 2017-08-04 2017-08-04 Système de dessalement efficace de l'eau de mer utilisant une nouvelle énergie Ceased WO2019024070A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2020504316A JP6940680B2 (ja) 2017-08-04 2017-08-04 新規なエネルギー効率のよい海水淡水化システム
PCT/CN2017/095957 WO2019024070A1 (fr) 2017-08-04 2017-08-04 Système de dessalement efficace de l'eau de mer utilisant une nouvelle énergie

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Application Number Priority Date Filing Date Title
PCT/CN2017/095957 WO2019024070A1 (fr) 2017-08-04 2017-08-04 Système de dessalement efficace de l'eau de mer utilisant une nouvelle énergie

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111322204A (zh) * 2020-03-26 2020-06-23 秦皇岛正时乐液压设备有限公司 一种液压风机直接驱动海水淡化系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116272373B (zh) * 2023-04-06 2023-09-15 广东海洋大学 一种磁力驱动式余压能回收装置及其海水淡化系统

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US4637783A (en) * 1980-10-20 1987-01-20 Sri International Fluid motor-pumping apparatus and method for energy recovery
WO2004043576A1 (fr) * 2002-11-14 2004-05-27 Frepower Ltd Dispositif de dessalement
CN101581328A (zh) * 2009-05-31 2009-11-18 王世昌 反渗透海水淡化系统用联合活塞自增压能量回收泵
CN101782095A (zh) * 2010-03-12 2010-07-21 国家海洋局天津海水淡化与综合利用研究所 用于海水淡化系统的差动式能量回收装置及方法
CN104759207A (zh) * 2015-04-22 2015-07-08 秦皇岛永纯洁海水淡化技术工程有限公司 双作用双活塞杆液压缸能量回收装置
CN105800734A (zh) * 2014-12-12 2016-07-27 顾明 新能源高效柱塞泵海水淡化装置系统

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JP2003083230A (ja) * 2001-09-14 2003-03-19 Mitsubishi Heavy Ind Ltd 風車発電装置及び風車プラントとそれらの運転方法
EP2881370A4 (fr) * 2012-07-31 2016-05-11 Ronghui Zhu Procédé et dispositif intégrés de dessalage-pressurisation d'eau de mer sur membrane et de récupération d'énergie

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4637783A (en) * 1980-10-20 1987-01-20 Sri International Fluid motor-pumping apparatus and method for energy recovery
WO2004043576A1 (fr) * 2002-11-14 2004-05-27 Frepower Ltd Dispositif de dessalement
CN101581328A (zh) * 2009-05-31 2009-11-18 王世昌 反渗透海水淡化系统用联合活塞自增压能量回收泵
CN101782095A (zh) * 2010-03-12 2010-07-21 国家海洋局天津海水淡化与综合利用研究所 用于海水淡化系统的差动式能量回收装置及方法
CN105800734A (zh) * 2014-12-12 2016-07-27 顾明 新能源高效柱塞泵海水淡化装置系统
CN104759207A (zh) * 2015-04-22 2015-07-08 秦皇岛永纯洁海水淡化技术工程有限公司 双作用双活塞杆液压缸能量回收装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111322204A (zh) * 2020-03-26 2020-06-23 秦皇岛正时乐液压设备有限公司 一种液压风机直接驱动海水淡化系统

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