CN106517596A - Reverse osmosis seawater desalination system and treatment process implemented by same - Google Patents
Reverse osmosis seawater desalination system and treatment process implemented by same Download PDFInfo
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- CN106517596A CN106517596A CN201611201652.7A CN201611201652A CN106517596A CN 106517596 A CN106517596 A CN 106517596A CN 201611201652 A CN201611201652 A CN 201611201652A CN 106517596 A CN106517596 A CN 106517596A
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- 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
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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- 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
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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 invention discloses a reverse osmosis seawater desalination system which comprises a seawater pressurization group, a primary cartridge filter, a secondary cartridge filter, a high-pressure plunger energy recycling assembly, a reverse osmosis main unit and a backwash reservoir. The seawater pressurization group, the primary cartridge filter, the secondary cartridge filter, the high-pressure plunger energy recycling assembly, the reverse osmosis main unit and the backwash reservoir are sequentially connected with one another by a plurality of pipelines, a chemical feeding assembly is connected onto the pipeline between the seawater pressurization group and the primary cartridge filter, a transition throttle valve is arranged in the pipeline between the primary cartridge filter and the secondary cartridge filter, a pressure switch is connected with an input end of the high-pressure plunger energy recycling assembly, a pressure gauge is arranged at an output end of the high-pressure plunger energy recycling assembly, an output pipeline, a high-pressure return water pipeline and a high-salinity water drain pipeline are respectively connected onto the high-pressure plunger energy recycling assembly, the high-pressure plunger energy recycling assembly is connected with the reverse osmosis main unit by the output pipeline, and a series-connection water channel is formed by the high-pressure plunger energy recycling assembly, the reverse osmosis main unit, the output pipeline and the high-pressure return water pipeline.
Description
Technical field
The present invention relates to a kind of rational in infrastructure, process is simple, the reverse osmosis seawater desalination system of efficient energy-saving and its process
Technique, its response rate and salt rejection rate are high, and service life of equipment is long.
Background technology
Chinese Patent Application No.:201410301639.3, a kind of reverse osmosis seawater desalting device is disclosed, including desalination apparatus cylinder
Body, desalination apparatus inner barrel are provided with eddy flow storehouse and reverse osmosis module, and reverse osmosis module is coated on eddy flow storehouse and periphery, eddy flow storehouse and
Concentrated water water outlet cavity is formed between reverse osmosis module, forms fresh water outlet chamber between reverse osmosis module and desalination apparatus cylinder inboard wall
Body, fresh water outlet cavity bottom connection fresh water set cylinder, desalination apparatus cylinder top side are provided with seawater inlet, seawater inlet connection
Sea water enters pipe one end, and sea water enters the pipe other end in eddy flow storehouse, and eddy flow storehouse is provided with whirl hole.
Chinese Patent Application No.:201210457653.3, a kind of seepage-resisting sea-water desalting process and its device is disclosed, its
Middle technique is comprised the following steps:Sea water is separated into concentrated seawater and fresh water by the reverse osmosis membrane group configured with multistage, wherein previous
The concentrated seawater of section becomes its next section of water supply;Concentrated seawater energy is reclaimed using efficient positive displacement energy recycle device;Its
In, the total significant surface of reverse osmosis membrane of the reverse osmosis membrane effective area of first paragraph reverse osmosis membrane group and each thereafter section of reverse osmosis membrane group
The scope of the ratio M of product is more than or equal to 1.3 and is less than or equal to 3, the operating pressure of N+1 section reverse osmosis membrane groups and the 1st section of reverse osmosiss
The operating pressure of film group is more than or equal to 0.9 than m and is less than or equal to 1.06.
Chinese Patent Application No.:201610132707.7, a kind of efficient reverse osmosis desalination device is disclosed, including confession
Sea water flow into water intaking valve, the feed pump being connected with the outlet of water intaking valve, the sand filter being connected with the outlet of feed pump and
Multistage filter and the reverse osmosis unit being connected with multistage filter by a high-pressure pump that the outlet of sand filter is connected, instead
Permeability apparatus are connected with the faucet flowed out for fresh water by a pressure regulator valve, and reverse osmosis unit is also connected with for useless by water pipe
The wastewater discharge device that water is discharged.During use, sea water enters sand filter Jing after feed pump lifts pressurization, is gone out by sand filter big
Multistage filter is entered into after rust after float, fine sandstone, diatom to be filtered, then sea water by high-pressure pump pressurize into
Enter in the first reverse osmosiss filter element and the second reverse osmosiss filter element, by pressure regulation pressure regulating valve after having filtered, fresh water is from faucet
Place flows out.
Foregoing invention creates complex structure, and not with process for sterilizing and automatic back-flushing function, the response rate and salt rejection rate are not
It is high.
The content of the invention
It is an object of the present invention to overcome the drawbacks described above of prior art, there is provided a kind of rational in infrastructure, process is simple, section
The efficient reverse osmosis seawater desalination system of energy and its handling process, its response rate and salt rejection rate height, service life of equipment are long.
For achieving the above object, the technical scheme that the present invention is provided is as follows:A kind of reverse osmosis seawater desalination system, including logical
Cross seawater boost group, one-level cartridge filter, two grades of cartridge filters, high-pressure plunger energy regeneratings that some pipelines are sequentially connected
Component, reverse osmosiss main frame and backwash cistern, connect on the pipeline between the seawater boost group and one-level cartridge filter
There is dosing component, in the pipeline between the one-level cartridge filter and two grades of cartridge filters, be provided with transition choke valve, it is described
The input of high-pressure plunger energy recovery assemblies is connected with pressure switch, and the outfan of the high-pressure plunger energy recovery assemblies sets
There is pressure gauge, be connected to output pipe, high pressure water return pipeline, haline water on the high-pressure plunger energy recovery assemblies and release
Pipeline, the high-pressure plunger energy recovery assemblies are connected with reverse osmosiss main frame by output pipe, and the high-pressure plunger energy is returned
Receive component, reverse osmosiss main frame, output pipe and high pressure water return pipeline and constitute one group of series connection water route, the reverse osmosiss main frame and recoil
Ozonateur is connected with the pipeline washed between cistern, and the inflow end of backwash cistern is provided with effusion meter.
According to above technical requirements, the outflow end of the backwash cistern is connected to backwash water return pipeline, use
Water exports water route.
According to above technical requirements, the backwash water return pipeline extend and connected to transition choke valve and two grades ensured public security
In pipeline between filter.
According to above technical requirements, the seawater boost group, pressure switch, high-pressure plunger energy recovery assemblies respectively connect
It is connected in an electric cabinet.
According to above technical requirements, the dosing component includes make up a prescription pond and unidirectional dosing valve.
According to above technical requirements, in the backwash water return pipeline, backwater check valve is provided with.
According to above technical requirements, the high-pressure plunger energy recovery assemblies include high-pressure pump and energy recycle device.
A kind of handling process of reverse osmosis seawater desalination system, its processing technological flow include:
A) seawater boost group directly takes out raw water from sea water well;
B) Jing dosings component dispensing carries out medical preconditioning to raw water;
C) the one-level cartridge filter of 5 μm of filtering accuracies of Jing filters off particulate matter of the particle diameter more than 5 μm;
D) two grades of cartridge filters for passing through 10 μm of filtering accuracies filter off particulate matter of the particle diameter more than 10 μm;
E) Jing after Step d filtration treatment filter water, filter water enter high-pressure plunger energy recovery assemblies, high-pressure plunger
The working pressure range of energy recovery assemblies is 2-6MPa;
F) the high-pressure pump water outlet of high-pressure plunger energy recovery assemblies enters reverse osmosiss main frame, is divided to two groups of arranged in series, one group
The highrank fuel salinity water that Jing reverse osmosiss host process goes out is returned by the energy that high pressure water return pipeline enters high-pressure plunger energy recovery assemblies
Receiving apparatus, after energy regenerating, Jing haline waters pipeline of releasing is drained again, and the water Jing up to standard that another group of Jing reverse osmosiss host process goes out is smelly
Oxygen disinfector is saved in flowing into backwash cistern after disinfecting, and when need to using, Jing is discharged with water output water route.
When one-level cartridge filter needs backwash, the water up to standard in backwash cistern by open backwater it is unidirectional
Valve Jing backwashes water return pipeline carries out backwash to one-level cartridge filter.
Usefulness of the present invention is:By the sterilization of dosing component, one-level cartridge filter and two grades of cartridge filters
Pretreatment, protection reverse osmosiss main frame it is without damage;By the pre-filtering of one-level cartridge filter, reduce by two grades of security personnel and filter
The work load of device, high-pressure plunger energy recovery assemblies and reverse osmosiss main frame, extends the life-span, reduces replacement cost;With reference to high pressure
The pretreatment of plunger energy recovery assemblies and energy regenerating, improve salt rejection rate and the response rate;By high-pressure plunger energy regenerating group
The preposition pressure switch of part, if the pressure in pipeline is less than the setting value of pressure switch, high-pressure plunger energy recovery assemblies
To shut down, to protect high-pressure plunger energy recovery assemblies, operationally fresh water is drawn into high-pressure plunger energy recovery assemblies
Interior circulation and be discharged;With backwash loop, automatic backwash can be carried out to one-level cartridge filter, extend one-level and ensured public security
The filter element life of filter, rational in infrastructure, efficient energy-saving.
Description of the drawings
Fig. 1 is the schematic diagram of reverse osmosis seawater desalination system of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings and preferred embodiment is further described with regard to technical scheme.
As shown in figure 1, a kind of reverse osmosis seawater desalination system of the present invention, including being sequentially connected by some pipelines
Seawater boost group 1, one-level cartridge filter 2, two grades of cartridge filters 3, high-pressure plunger energy recovery assemblies 4, reverse osmosiss masters
Machine 5 and backwash cistern 6, are connected with dosing component on the pipeline between the seawater boost group 1 and one-level cartridge filter 2
11, transition choke valve 21, the high pressure is provided with the pipeline between the one-level cartridge filter 2 and two grades of cartridge filters 3
The input of plunger energy recovery assemblies 4 is connected with pressure switch 41, and the outfan of the high-pressure plunger energy recovery assemblies 4 sets
There is pressure gauge (attached not shown), on the high-pressure plunger energy recovery assemblies 4, be connected to output pipe 42, high pressure return pipe
Road 43, haline water is released pipeline 44, and the high-pressure plunger energy recovery assemblies 4 are connected with reverse osmosiss main frame 5 by output pipe 42
Connect, the high-pressure plunger energy recovery assemblies 4, reverse osmosiss main frame 5, output pipe 42 and high pressure water return pipeline 43 constitute one group of string
Connection water route, is connected with ozonateur 61 in the pipeline between the reverse osmosiss main frame 5 and backwash cistern 6, backwash stores
The inflow end in pond 6 is provided with effusion meter 62.
Further, the outflow end of the backwash cistern 6 is connected to backwash water return pipeline 63, is exported with water
Water route 64.
Further, the backwash water return pipeline 63 extends and connected to transition choke valve 21 and two grades of cartridge filters
In pipeline between 3.
Further, the seawater boost group 1, pressure switch 41, high-pressure plunger energy recovery assemblies 4 are respectively connected to
In one electric cabinet 7.
Further, the dosing component 21 includes pond of making up a prescription (accompanying drawing is not marked) and unidirectional dosing valve (accompanying drawing is not marked
Note).
Further, backwater check valve 65 is provided with the backwash water return pipeline 63.
Further, the high-pressure plunger energy recovery assemblies 4 include high-pressure pump (attached not shown) and energy regenerating dress
Put (attached not shown).
A kind of handling process of reverse osmosis seawater desalination system, its processing technological flow include:
A) seawater boost group directly takes out raw water from sea water well;
B) Jing dosings component dispensing carries out medical preconditioning to raw water;
C) the one-level cartridge filter of 5 μm of filtering accuracies of Jing filters off particulate matter of the particle diameter more than 5 μm;
D) two grades of cartridge filters for passing through 10 μm of filtering accuracies filter off particulate matter of the particle diameter more than 10 μm;
E) Jing after Step d filtration treatment filter water, filter water enter high-pressure plunger energy recovery assemblies, high-pressure plunger
The working pressure range of energy recovery assemblies is 2-6MPa;
F) the high-pressure pump water outlet of high-pressure plunger energy recovery assemblies enters reverse osmosiss main frame, is divided to two groups of arranged in series, one group
The highrank fuel salinity water that Jing reverse osmosiss host process goes out is returned by the energy that high pressure water return pipeline enters high-pressure plunger energy recovery assemblies
Receiving apparatus, after energy regenerating, Jing haline waters pipeline of releasing is drained again, and the water Jing up to standard that another group of Jing reverse osmosiss host process goes out is smelly
Oxygen disinfector is saved in flowing into backwash cistern after disinfecting, and when need to using, Jing is discharged with water output water route.
When one-level cartridge filter needs backwash, the water up to standard in backwash cistern by open backwater it is unidirectional
Valve Jing backwashes water return pipeline carries out backwash to one-level cartridge filter.
Specifically, directly fetched water from sea water well by seawater boost group, the one-level cartridge filter filter of 5 μm of filtering accuracies of Jing
80%-90%, the particulate matter that particle diameter is more than 5 μm is removed, two grades of cartridge filters for passing through 10 μm of filtering accuracies filter off grain
Particulate matter of the footpath more than 10 μm, Jing after the process of above two-stage filter, filter efficiency is more than 99.9%, and this precision has met height
Requirement of the hydraulic plunger energy recovery assemblies to intaking;Simultaneously because the pre-filtering of 5 μm of accurate filters of one-level cartridge filter is made
With the burden very little for causing two grades of cartridge filters, so two grades of cartridge filter energy long-plays, sea after pretreatment
Water enters high-pressure plunger energy recovery assemblies, and the working pressure range of high-pressure plunger energy recovery assemblies is 2-6MPa, in sea water
When temperature is 28 DEG C, the operating pressure in this reverse osmosis main frame is 4.5-5.5MPa, corresponds to power of motor during this operating pressure
For 2-3kW, when Rated motor rotating speed is 3000r/min, the feedwater flow of high-pressure plunger energy recovery assemblies mesohigh pump is
5.35m3/ h, the flow of haline water are 2.34m3/ h, fresh water yield are 2.26m3Energy in/h, i.e. high-pressure plunger energy recovery assemblies
The response rate of amount retracting device is for about 42%, and this ratio is changeless, and high-pressure pump water outlet enters reverse osmosiss main frame, is divided to two groups
Arranged in series, has reverse osmosis membrane in reverse osmosiss main frame, haline water enters the energy regenerating of high-pressure plunger energy recovery assemblies and fills
Put, drained after energy regenerating again, an effusion meter is also equipped with the outlet of reverse osmosiss main frame to realize that fresh water yield is counted.
Above-described is only the principle of the present invention and preferred embodiment.It should be pointed out that the ordinary skill people to this area
For member, under the premise without departing from the principles of the invention, moreover it is possible to make some modifications and improvement, also should be regarded as belonging to the present invention
Protection domain.
Claims (9)
1. a kind of reverse osmosis seawater desalination system, it is characterised in that:Including the seawater boost group being sequentially connected by some pipelines,
One-level cartridge filter, two grades of cartridge filters, high-pressure plunger energy recovery assemblies, reverse osmosiss main frame and backwash cisterns,
Be connected with dosing component on pipeline between the seawater boost group and one-level cartridge filter, the one-level cartridge filter with
Transition choke valve, the input connection of the high-pressure plunger energy recovery assemblies is provided with pipeline between two grades of cartridge filters
The outfan for having pressure switch, the high-pressure plunger energy recovery assemblies is provided with pressure gauge, the high-pressure plunger energy regenerating group
It is connected to output pipe, high pressure water return pipeline, haline water to release pipeline on part, the high-pressure plunger energy recovery assemblies lead to
Cross output pipe to be connected with reverse osmosiss main frame, the high-pressure plunger energy recovery assemblies, reverse osmosiss main frame, output pipe and high pressure
Water return pipeline constitutes one group of series connection water route, is connected with ozone and disappears in the pipeline between the reverse osmosiss main frame and backwash cistern
Malicious device, the inflow end of backwash cistern are provided with effusion meter.
2. reverse osmosis seawater desalination system according to claim 1, it is characterised in that:The outflow of the backwash cistern
End is connected to backwash water return pipeline, exports water route with water.
3. reverse osmosis seawater desalination system according to claim 2, it is characterised in that:The backwash water return pipeline extends
And be connected in the pipeline between transition choke valve and two grades of cartridge filters.
4. reverse osmosis seawater desalination system according to claim 1, it is characterised in that:The seawater boost group, pressure are opened
Close, high-pressure plunger energy recovery assemblies are respectively connected in an electric cabinet.
5. reverse osmosis seawater desalination system according to claim 1, it is characterised in that:The dosing component is included and is made up a prescription
Pond and unidirectional dosing valve.
6. reverse osmosis seawater desalination system according to claim 2, it is characterised in that:Set in the backwash water return pipeline
There is backwater check valve.
7. reverse osmosis seawater desalination system according to claim 1, it is characterised in that:The high-pressure plunger energy regenerating group
Part includes high-pressure pump and energy recycle device.
8. a kind of handling process of reverse osmosis seawater desalination system, it is characterised in that:Its processing technological flow includes:
A) seawater boost group directly takes out raw water from sea water well;
B) Jing dosings component dispensing carries out medical preconditioning to raw water;
C) the one-level cartridge filter of 5 μm of filtering accuracies of Jing filters off particulate matter of the particle diameter more than 5 μm;
D) two grades of cartridge filters for passing through 10 μm of filtering accuracies filter off particulate matter of the particle diameter more than 10 μm;
E) Jing after Step d filtration treatment filter water, filter water enter high-pressure plunger energy recovery assemblies, high-pressure plunger energy
The working pressure range for reclaiming component is 2-6MPa;
F) the high-pressure pump water outlet of high-pressure plunger energy recovery assemblies enters reverse osmosiss main frame, is divided to two groups of arranged in series, and one group of Jing is anti-
The highrank fuel salinity water that infiltration host process goes out is filled by the energy regenerating that high pressure water return pipeline enters high-pressure plunger energy recovery assemblies
Put, after energy regenerating, Jing haline waters pipeline of releasing is drained again, the water Jing ozone up to standard that another group of Jing reverse osmosiss host process goes out disappears
Malicious device is saved in flowing into backwash cistern after disinfecting, and when need to using, Jing is discharged with water output water route.
9. the handling process of reverse osmosis seawater desalination system according to claim 8, it is characterised in that:When one-level was ensured public security
When filter needs backwash, the water up to standard in backwash cistern by open backwater check valve Jing backwash water return pipelines pair
One-level cartridge filter carries out backwash.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109796099A (en) * | 2017-11-17 | 2019-05-24 | 华东理工大学 | A kind of reverse osmosis -- positive infiltration -- seawater desalination system and method for multi-effect distilling coupling |
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Cited By (1)
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CN109796099A (en) * | 2017-11-17 | 2019-05-24 | 华东理工大学 | A kind of reverse osmosis -- positive infiltration -- seawater desalination system and method for multi-effect distilling coupling |
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