CN108862479A - Wind power sea water desalination system - Google Patents

Wind power sea water desalination system Download PDF

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Publication number
CN108862479A
CN108862479A CN201810869214.0A CN201810869214A CN108862479A CN 108862479 A CN108862479 A CN 108862479A CN 201810869214 A CN201810869214 A CN 201810869214A CN 108862479 A CN108862479 A CN 108862479A
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cavity
high pressure
energy storage
seawater
film group
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CN201810869214.0A
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CN108862479B (en
Inventor
顾为东
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Gu Weidong
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Nanjing Non Grid Amperex Technology Ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08Seawater, e.g. for desalination
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/009Apparatus with independent power supply, e.g. solar cells, windpower, fuel cells
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/10Energy recovery
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124Water desalination
    • Y02A20/131Reverse-osmosis

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The present invention relates to a kind of Wind power sea water desalination systems, including blower, the first hydraulic pump, the second hydraulic pump, hydraulic cylinder, energy storage canister, plunger pump and RO film group;Blower provides power for the first, second hydraulic pump;The cavity of plunger pump is separated into the first cavity, the second cavity by plunger, and the second cavity is equipped with inlet and leakage fluid dram;The piston rod of hydraulic cylinder and the plunger of plunger pump are affixed, and the cavity of hydraulic cylinder is divided into process chamber and backhaul chamber by the piston of hydraulic cylinder;Gas is filled in energy storage canister, the bottom of energy storage canister is equipped with inlet and outlet, the water inlet of RO film group is connected to the leakage fluid dram of the second cavity, the concentrated seawater outlet of RO film group is connected to the bottom water inlet of energy storage canister, and the bottom water outlet of energy storage canister is connected into high pressure concentrated seawater one-way on-off valve with the first cavity.The invention avoids two groups of plunger pump synchronously controls difficulties in the prior art, and being easy to produce the too big defect of water pressure fluctuations to improve production efficiency reduces production cost.

Description

Wind power sea water desalination system
Technical field
The present invention relates to a kind of Wind power sea water desalination systems, belong to field of sea water desalting technology.
Background technique
One important goal of desalination technology development is to reduce operating cost, the energy consumption institute in the composition of operating cost The specific gravity accounted for is maximum, so reducing energy consumption is to reduce the most effective means of sea water desalination cost.Reverse osmosis seawater desalting is current One of mainstream technology of sea water desalination, reverse osmosis seawater desalting process need to consume a large amount of electric energy and promote intake pressure to overcome water Osmotic pressure, it is desirable that the pressure for entering seawater in reverse osmosis membrane necessarily is greater than the osmotic pressure of film, the pressure usually 4MPa~ Between 6MPa.The pressure of the high concentrated seawater of the salt content of output may be up to 5MPa after reverse osmosis membrane filtration, discharge it is dense The recycling of this part energy is become to be greatly reduced instead into water energy by the feed water pressure energy for also containing about 60% in salt water The energy consumption of penetration sea water desalinization, and this purpose realization depends on and utilizes Energy Recovery Technology.
In field of seawater desalination, the separation of ion and hydrone contained in seawater is realized using reverse osmosis membrane, Concentrated seawater at this time contains high potential energy, if direct emission, necessarily will cause great energy dissipation.In order to reduce energy Consumption, and the production cost of sea water desalination is reduced, the seawater desalination system of reverse osmosis membrane generally can all be furnished with recuperator Recycle the potential energy of concentrated seawater.
Since the seventies, as reverse osmosis technology is applied to seawater/brackish water desalination, various forms of energy regenerating dresses Set also appearance in succession.Application No. is disclosing a kind of seawater desalination system in the Chinese patent of CN2014107773299, the system Two groups of plunger pumps are driven to be recycled the concentrated water overbottom pressure that reverse osmosis membrane is discharged to desalinize seawater by blower, but two groups Plunger pump synchronously control is extremely difficult, and often two groups of plunger pumps synchronize accurately after the completion of test, goes out when operation a period of time Existing asynchrony phenomenon, causes water pressure fluctuations too big, influences to work normally, to reduce production efficiency, increase production cost.
Summary of the invention
The invention solves technical problems to be:There is provided that a kind of operating cost is low, seawater desalination system of high production efficiency.
In order to solve the above-mentioned technical problem, technical solution proposed by the present invention is:A kind of Wind power sea water desalination system, it is special Sign is:Including blower 26, the first hydraulic pump 24, the second hydraulic pump 25, hydraulic cylinder 15, energy storage canister 21, plunger pump 5, RO film group 22 and control device 28;The shaft 29 of blower 26 is used to provide power for the first hydraulic pump 24, the second hydraulic pump 25;
Plunger pump 5 is vertically arranged, and the cavity of plunger pump 5 is separated into two parts by plunger 6, and lower part is the first cavity 11, and top is Second cavity 2, the second cavity 2 are equipped with inlet and leakage fluid dram, are equipped with before inlet into fresh seawater check valve 1, leakage fluid dram The row's of being equipped with high pressure fresh seawater check valve 7 afterwards;Hydraulic cylinder 15 is also vertically arranged, the piston rod of hydraulic cylinder 15 and the column of plunger pump 5 Fill in 6 affixed, the cavity of hydraulic cylinder 15 is divided into process chamber 19 and backhaul chamber 17 by the piston of hydraulic cylinder 15;
It is filled with gas in energy storage canister 3, the bottom of energy storage canister 3 is equipped with inlet and outlet, the water inlet of RO film group 22 and the The leakage fluid dram of two cavitys 2 is connected to, and the water outlet of RO film group 22 is connected to fresh water collecting device 23, the low pressure that RO film group 22 generates Fresh water enters fresh water collecting device 23, and the concentrated seawater outlet of RO film group 22 is connected to the bottom water inlet of energy storage canister 3, RO film group 22 The high pressure concentrated seawater of discharge enters energy storage canister 3 through row's high pressure concentrated seawater check valve 10, and the bottom water outlet of energy storage canister 3 is passed through into high pressure Concentrated seawater one-way on-off valve 9 is connected to the first cavity 11;
When the high pressure oil that control device 28 controls the output of the second hydraulic pump 25 enters process chamber 19, the high pressure oil in backhaul chamber 17 is arranged When out, plunger pump 5 supplies fresh seawater to RO film group 22, while control device 28 is controlled into high pressure concentrated seawater one-way on-off valve 9 It opens, row's low pressure concentrated seawater one-way on-off valve 12 is closed, and energy storage canister 3 discharges high pressure concentrated seawater and enters the first cavity 11, to make Driving plunger 6 moves upwards high pressure concentrated seawater jointly with hydraulic cylinder 15, and the low pressure fresh seawater in the second cavity 2 is made to become high pressure Fresh seawater, high pressure fresh seawater are desalinated by row's high pressure fresh seawater check valve 7 into RO film group 22, the fresh water of generation Into fresh water collecting device 23, the high pressure concentrated seawater of generation enters energy storage canister 3, and the gas compression in energy storage canister 3 is made to boost;
When the high pressure oil that control device 28 controls the output of the first hydraulic pump 24 enters backhaul chamber 17, the high pressure oil in process chamber 19 is arranged It when out, is closed into high pressure concentrated seawater one-way on-off valve 9, row's low pressure concentrated seawater one-way on-off valve 12 is opened, at this time piston driving column Plug 6 moves downward, and the concentrated seawater in the first cavity 11 is discharged by row's low pressure concentrated seawater one-way on-off valve 12, and the second cavity 2 holds Product, which increases, to be formed negative pressure and extracts low pressure fresh seawater into the second cavity.
The invention has the beneficial effects that:The present invention to two groups of plunger pumps in the prior art by carrying out being reduced to one group Plunger pump, and energy regenerating is carried out by energy storage canister, structure is simplified, in the high-pressure thick sea for making full use of RO film group to generate On the basis of the energy of water, two groups of plunger pump synchronously controls difficulties in the prior art are avoided, it is too big to be easy to produce water pressure fluctuations Defect reduce production cost to improve production efficiency.In addition, energy storage canister buffers high pressure concentrated seawater, also subtract Lack the impact to plunger pump, extends service life.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings.
Fig. 1 is the structural schematic diagram of the embodiment of the present invention.
Fig. 2 is the structural schematic diagram of blower in embodiment.
Appended drawing reference:Into fresh seawater check valve 1, the second cavity 2, energy storage canister 3, plunger pump 5, plunger 6, row's high pressure is fresh Seawater check valve 7 arranges high pressure concentrated seawater check valve 10 into high pressure concentrated seawater one-way on-off valve 9, and the first cavity 11 arranges low-press thick Seawater one-way on-off valve 12, piston rod 13, hydraulic cylinder 15, backhaul chamber 17, process chamber 19, electrical storage device 20, surge tank 21, RO film Group 22, fresh water collecting device 23, the first hydraulic pump 24, the second hydraulic pump 25, blower 26, generator 27, control device 28, shaft 29, impeller 30, tower body 31, low pressure fresh seawater import 32, low-press thick seawer outlet 33.
Specific embodiment
Embodiment
The present embodiment is to application No. is the improvement that the Chinese patent of CN2014107773299 carries out, as shown in Figure 1, originally The Wind power sea water desalination system of embodiment includes blower 26, the first hydraulic pump 24, the second hydraulic pump 25, hydraulic cylinder 15, energy storage canister 21, plunger pump 5, RO film group 22 and control device 28;The shaft 29 of blower 26 is used to be the first hydraulic pump 24, the second hydraulic pump 25 Power is provided.
Plunger pump 5 is vertically arranged, and the cavity of plunger pump 5 is separated into two parts by plunger 6, and lower part is the first cavity 11, on Portion is the second cavity 2.Second cavity 2 is equipped with inlet and leakage fluid dram, is equipped with before inlet into fresh seawater check valve 1, row The row's of being equipped with high pressure fresh seawater check valve 7 after liquid mouth.Hydraulic cylinder 15 is also vertically arranged, the piston rod and plunger pump 5 of hydraulic cylinder 15 Plunger 6 it is affixed, the cavity of hydraulic cylinder 15 is divided into process chamber 19 and backhaul chamber 17 by the piston of hydraulic cylinder 15.
The water inlet of RO film group 22 is connected to the leakage fluid dram of the second cavity 2, the water outlet and fresh water collecting of RO film group 22 Device 23 is connected to, and the low pressure fresh water that RO film group 22 generates enters fresh water collecting device 23, the concentrated seawater outlet and storage of RO film group 22 The bottom water inlet connection of energy tank 3, the high pressure concentrated seawater that RO film group 22 is discharged enter energy storage through row's high pressure concentrated seawater check valve 10 Tank 3.3 top of energy storage canister is gas, and lower part is seawater, after high pressure concentrated seawater enters energy storage canister 3 from bottom, makes the gas pressure on top Contracting boosting.The bottom water outlet of energy storage canister 3 is connected into high pressure concentrated seawater one-way on-off valve 9 with the first cavity 11.
As shown in Fig. 2, blower 26 includes impeller 30, shaft 29 and tower body 31,31 lower end of tower body is equipped with low pressure fresh seawater Import 32 and low-press thick seawer outlet 33;Energy storage canister 3, plunger pump 5, RO film group 22 and control device 28 are installed in tower body 31 It is interior.Surge tank 21 is additionally provided in tower body 31, surge tank 21 is set to the water inlet of RO film group 22 and the leakage fluid dram of the first cavity 11 Between, for buffering the high pressure fresh seawater that will enter RO film group 22.
Also driven generator 27 generates electricity blower 26 simultaneously, and the electric energy that generator 27 produces enters electrical storage device 20, by Electrical storage device 20 is the power supply of control device 28.
Enter process chamber 19 when control device 28 controls the high pressure oil that the second hydraulic pump 25 exports, the high pressure in backhaul chamber 17 When oil discharge, plunger pump 5 supplies fresh seawater to RO film group 22, while control device 28 is controlled into high pressure concentrated seawater single-way switch Valve 9 is opened(Pipeline connection), row's closing of low pressure concentrated seawater one-way on-off valve 12(Pipeline disconnects), it is extra large that energy storage canister 3 discharges high-pressure thick Water enters the first cavity 11, to make high pressure concentrated seawater with hydraulic cylinder 15, driving plunger 6 is moved upwards jointly, makes the second cavity 2 Interior low pressure fresh seawater becomes high pressure fresh seawater, and high pressure fresh seawater is entered slow by row's high pressure fresh seawater check valve 7 It rushes after tank 21 buffers and is desalinated by RO film group 22, the fresh water of generation enters fresh water collecting device 23, the high-pressure thick sea of generation Water enters energy storage canister 3.
Enter backhaul chamber 17 when control device 28 controls the high pressure oil that the first hydraulic pump 24 exports, the high pressure in process chamber 19 It when oil discharge, is closed into high pressure concentrated seawater one-way on-off valve 9, row's low pressure concentrated seawater one-way on-off valve 12 is opened, at this time piston band Dynamic plunger 6 moves downward, and the concentrated seawater in the first cavity 11 is discharged by row's low pressure concentrated seawater one-way on-off valve 12, the second cavity 2 volumes increase to form negative pressure and extract low pressure fresh seawater into the second cavity.
Above process is repeated, can continue to carry out sea water desalination.Control device 28 belongs to existing in the present embodiment Technology is mainly used for controlling the work of the on-off of each valve and the first hydraulic pump, the second hydraulic pump, repeat no more.
The present invention is not limited to the above embodiment the specific technical solution, and in addition to the implementation, the present invention may be used also To there is other embodiments.For those skilled in the art, all within the spirits and principles of the present invention, made The technical solution of the formation such as what modification, equivalent replacement, improvement, should all be included in the protection scope of the present invention.

Claims (4)

1. a kind of Wind power sea water desalination system, it is characterised in that:Including blower(26), the first hydraulic pump(24), the second hydraulic pump (25), hydraulic cylinder(15), energy storage canister(21), plunger pump(5), RO film group(22)And control device(28);Blower(26)Shaft (29)For for the first hydraulic pump(24), the second hydraulic pump(25)Power is provided;
Plunger pump(5)It is vertically arranged, plunger(6)By plunger pump(5)Cavity be separated into two parts, lower part is the first cavity (11), top is the second cavity(2), the second cavity(2)It is equipped with inlet and leakage fluid dram, is equipped with before inlet into fresh seawater Check valve(1), the row's of being equipped with high pressure fresh seawater check valve after leakage fluid dram(7);Hydraulic cylinder(15)Also it is vertically arranged, hydraulic cylinder(15) Piston rod and plunger pump(5)Plunger(6)It is affixed, hydraulic cylinder(15)Piston by hydraulic cylinder(15)Cavity be divided into process chamber (19)With backhaul chamber(17);
Energy storage canister(3)It is interior to be filled with gas, energy storage canister(3)Bottom be equipped with inlet and outlet, RO film group(22)Water inlet Mouth and the second cavity(2)Leakage fluid dram connection, RO film group(22)Water outlet and fresh water collecting device(23)Connection, RO film group (22)The low pressure fresh water of generation enters fresh water collecting device(23), RO film group(22)Concentrated seawater outlet and energy storage canister(3)Bottom The connection of portion's water inlet, RO film group(22)The high pressure concentrated seawater of discharge is through arranging high pressure concentrated seawater check valve(10)Into energy storage canister(3), Energy storage canister(3)Bottom water outlet pass through into high pressure concentrated seawater one-way on-off valve(9)With the first cavity(11)Connection;
Work as control device(28)Control the second hydraulic pump(25)The high pressure oil of output enters process chamber(19), backhaul chamber(17)In When high pressure oil is discharged, plunger pump(5)To RO film group(22)Supply fresh seawater, while control device(28)It controls into high-pressure thick sea Water one-way on-off valve(9)It opens, arranges low pressure concentrated seawater one-way on-off valve(12)It closes, energy storage canister(3)Discharge high pressure concentrated seawater into Enter the first cavity(11), to make high pressure concentrated seawater and hydraulic cylinder(15)Common driving plunger(6)It moves upwards, makes the second cavity (2)Interior low pressure fresh seawater becomes high pressure fresh seawater, and high pressure fresh seawater passes through row's high pressure fresh seawater check valve(7)Into Enter RO film group(22)Desalinated, the fresh water of generation enters fresh water collecting device(23), the high pressure concentrated seawater of generation enters energy storage Tank(3), make energy storage canister(3)Interior gas compression boosting;
Work as control device(28)Control the first hydraulic pump(24)The high pressure oil of output enters backhaul chamber(17), process chamber(19)In When high pressure oil is discharged, into high pressure concentrated seawater one-way on-off valve(9)It closes, arranges low pressure concentrated seawater one-way on-off valve(12)It opens, this When piston driving plunger(6)It moves downward, the first cavity(11)Interior concentrated seawater passes through row's low pressure concentrated seawater one-way on-off valve (12)Discharge, the second cavity(2)Volume increases to form negative pressure and extract low pressure fresh seawater into the second cavity.
2. Wind power sea water desalination system according to claim 1, it is characterised in that:It further include surge tank(21), surge tank (21)It is set to RO film group(22)Water inlet and the first cavity(11)Leakage fluid dram between, for buffer will enter RO film group (22)High pressure fresh seawater.
3. Wind power sea water desalination system according to claim 1, it is characterised in that:Surge tank(21), energy storage canister(3), column Plug pump(5), RO film group(22)And control device(28)It is installed in the tower body of blower(31)It is interior.
4. Wind power sea water desalination system according to claim 1, it is characterised in that:Blower(26)Driven generator is gone back simultaneously (27)It generates electricity, generator(27)The electric energy of production enters electrical storage device(20), by electrical storage device(20)For control device 28 Power supply.
CN201810869214.0A 2018-08-02 2018-08-02 Wind power sea water desalination system Active CN108862479B (en)

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CN108862479B CN108862479B (en) 2024-03-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116354457A (en) * 2023-03-10 2023-06-30 武汉理工大学 Sea water desalination assembly and sea water desalination system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011083741A (en) * 2009-10-19 2011-04-28 Kyb Co Ltd Seawater desalination apparatus
CN202449891U (en) * 2012-03-01 2012-09-26 山东山大能源环境有限公司 Wind power compression device applicable to reverse osmosis seawater desalination
CN102874950A (en) * 2012-09-29 2013-01-16 王曙光 Complementary energy recycling wind power generation airbag type water treatment system
CN203043847U (en) * 2013-01-11 2013-07-10 北京碧水源膜科技有限公司 Energy recycling device for seawater desalination reverse osmosis system
CN105800734A (en) * 2014-12-12 2016-07-27 顾明 New energy efficient plunger pump seawater desalination plant system
CN208933040U (en) * 2018-08-02 2019-06-04 顾为东 Wind power sea water desalination system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011083741A (en) * 2009-10-19 2011-04-28 Kyb Co Ltd Seawater desalination apparatus
CN202449891U (en) * 2012-03-01 2012-09-26 山东山大能源环境有限公司 Wind power compression device applicable to reverse osmosis seawater desalination
CN102874950A (en) * 2012-09-29 2013-01-16 王曙光 Complementary energy recycling wind power generation airbag type water treatment system
CN203043847U (en) * 2013-01-11 2013-07-10 北京碧水源膜科技有限公司 Energy recycling device for seawater desalination reverse osmosis system
CN105800734A (en) * 2014-12-12 2016-07-27 顾明 New energy efficient plunger pump seawater desalination plant system
CN208933040U (en) * 2018-08-02 2019-06-04 顾为东 Wind power sea water desalination system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116354457A (en) * 2023-03-10 2023-06-30 武汉理工大学 Sea water desalination assembly and sea water desalination system
CN116354457B (en) * 2023-03-10 2024-03-08 武汉理工大学 Sea water desalination assembly and sea water desalination system

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