CN207330606U - A kind of desalinator for seawater - Google Patents
A kind of desalinator for seawater Download PDFInfo
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- CN207330606U CN207330606U CN201721210190.5U CN201721210190U CN207330606U CN 207330606 U CN207330606 U CN 207330606U CN 201721210190 U CN201721210190 U CN 201721210190U CN 207330606 U CN207330606 U CN 207330606U
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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
Abstract
The utility model discloses a kind of desalinator for seawater,Including PLC and seawater pipe,Concentrated water pipe,Fresh water pipe,Low-lift pump,Prefilter,Hyperfiltration membrane assembly,High-pressure pump,Reverse osmosis membrane assembly and ultraviolet ray disinfector,Hyperfiltration membrane assembly and reverse osmosis membrane assembly include water purification outlet and concentrated water outlet,The water inlet connection seawater pipe of low-lift pump,The water inlet of prefilter is connected with the water outlet of low-lift pump,The water inlet of hyperfiltration membrane assembly is connected with the water outlet of prefilter,The water inlet of high-pressure pump is connected with the water purification outlet of hyperfiltration membrane assembly,The water inlet of reverse osmosis membrane assembly and the water outlet of high-pressure pump connect,The water inlet of ultraviolet ray disinfector and the water purification outlet of reverse osmosis membrane assembly connect,The water outlet connection fresh water pipe of ultraviolet ray disinfector,The outlet of the concentrated water of hyperfiltration membrane assembly and reverse osmosis membrane assembly is all connected with concentrated water pipe,Full-automatic manipulation,With automatic cleaning,Monitoring and warning function,Maintenance cost is low,It is small,Solves the problems, such as the long-term marine desalination of small boat.
Description
Technical field
The utility model patent belongs to seawater treatment equipment field, and in particular to a kind of desalinator for seawater.
Background technology
Shortage of water resources has become the important restriction factor of China's socio-economic development, and there are nearly more than 400 cities in the whole nation
Insufficient water, wherein serious water shortage have more than 100.And the ratio that seawater accounts for global water resources total amount is up to 97%, seawater is light
The water intaking of change is from the influence of time and weather, and water stabilization and water are sufficient, and the desalination water water quality of production fully achieves
Water quality standard for drinking water, and better than traditional water source and the drinking water of water-purifying process production.Recent decades, with science and technology into
Step, desalination technology rapid development, production technology reach its maturity, and water producing cost constantly declines.By developing sea water desalination skill
Art solves water resources crisis and has obtained the generally approval of countries in the world.China's seashore line length, seawater resources enrich.Therefore, send out
Desalination technology is opened up, sea water desalination is used for coastal cities municipal water supply, industrial water, it is light not only can effectively to solve China
Shortage of water resources problem, and the domestic water water quality in coastal cities and islander can be improved and ensure industrial water just
Often supply.
Sea water desalination common method now used has a hyperfiltration, hyperfiltration with no phase-state change, normal-temperature operation,
Equipment is simple, high efficiency, take up an area less, easy to operate, consuming little energy, wide adaptation range, the degree of automation are high and effluent characteristics
The advantages that good.Hyperfiltration is to instigate some components (water in such as seawater) of solution to be separated under the effect of the pressure, is passed through
A kind of one reverse osmosis membrane of pellicle with selective penetrated property, thing is passed through in the low-pressure side of film and collection at normal temperatures, and in film
High-pressure side be by the concentrated solution of the other compositions of detention.Water enters a kind of solution or from a kind of weak solution by a kind of pellicle
A kind of natural flowing to denseer solution referred to as " is permeated ", still, in concentrated solution while can then make plus appropriate pressure
Infiltration stops, and the pressure when infiltration of the dilution to concentrated solution stops is known as " osmotic pressure " of solution, reverse osmosis, is dense molten
Liquid reverses the direction of naturally osmotic, the hydraulic pressure in concentrated solution to pellicle while plus the pressure than naturally osmotic pressure higher
Another side, this is opposite with the normal osmosis process of nature.
Film can be divided into ultrafiltration membrane (UF) and reverse osmosis membrane by pellicle according to the difference (or being molecular cut off) in aperture
(RO) etc..Ultrafiltration membrane membrane aperture is 0.001~0.02 μm, its operating pressure is 0.1~1.0MPa, and reverse osmosis membrane membrane aperture is
0.0001~0.001 μm, its operating pressure is 4.5~6.9MPa.Since pellicle permeable amount is directly proportional to driving pressure,
The pressure of reverse osmosis seawater desalting is designed with regard to extremely important, in addition to overcoming penetration of sea water pressure, also needs to consider that flow, feedwater are dense
Spend the factors such as change, water yield, water quality.Pellicle is in use, organic due to remaining in addition to the normal attenuation of performance
Thing, microorganism, impurity particle and indissoluble salt etc. are attached to film surface, and cause the decay of equipment performance even more serious, therefore,
In the pellicle that multiple fields use, once coming into operation, finally it is required for cleaning.System is being pumped when sea water desalination works
Actuating pressure under, some fresh water is passed through into pellicle, remaining part will be by electronic still in the condensed water of high pressure
Tee ball valve, and enter pressure-regulating valve and be discharged outside equipment.System is in cleaning, under the actuating pressure of pump, owns
By pellicle, concentrated water pipe directly is directly entered by electric three passes ball valve for seawater.The obstructed over-pressed force regulating valve of concentrated water, pellicle without
Actuating pressure, seawater can not pass through pellicle, only serve cleaning action, and the desalination technology has become with fastest developing speed and had competing at present
Strive the desalination technology of power.In addition to Middle East, hyperfiltration is the one preferred technique of sea water desalination, European sea water desalination
Production capacity is more than 1,000,000 m3/ d, occupies first of the world.Extra large light engineering the biggest in the world is that the Ashkelon seawater of Israel is light
Change factory, water yield is 330,000 m3/ d, is completely used for drinking water supply.Therefore, comprehensive various factors and condition, what which selected
Technique and technology sexual valence are higher, and existing desalinator for seawater build is huger, are semi-automatic state on type, can not
Automatically manipulated, type maintenance cost is excessive, and for small hull, itself cannot carry too many fresh water, be unfavorable for growing
Phase operation on the sea.
Utility model content
The purpose of this utility model is to provide a kind of desalinator for seawater, can automatically manipulate, with automatic cleaning work(
Can, and monitoring and warning function are carried, maintenance cost is low, and cost of labor is low, and build is more compact, is convenient for carrying, particularly with
Small hull, equipment the utility model can operation at sea for a long time, solve the problems, such as desalination.
In order to achieve the above object, the major technique solution of the utility model is to provide a kind of desalinator for seawater, including PLC
And seawater pipe, concentrated water pipe, fresh water pipe, low-lift pump, prefilter, hyperfiltration membrane assembly, high-pressure pump, reverse osmosis membrane assembly and ultraviolet
Sterilizer, hyperfiltration membrane assembly and reverse osmosis membrane assembly include water purification outlet and concentrated water outlet, the water inlet connection of low-lift pump
Seawater pipe, the water inlet of prefilter are connected with the water outlet of low-lift pump, the water inlet of hyperfiltration membrane assembly and going out for prefilter
The mouth of a river connects, and the water inlet of high-pressure pump is connected with the water purification outlet of hyperfiltration membrane assembly, the water inlet and high pressure of reverse osmosis membrane assembly
The water outlet connection of pump, the water inlet of ultraviolet ray disinfector and the water purification outlet of reverse osmosis membrane assembly connect, ultraviolet ray disinfector
Water outlet connection fresh water pipe, the concentrated water outlet of hyperfiltration membrane assembly and reverse osmosis membrane assembly is all connected with concentrated water pipe, prefilter with
Pipeline between hyperfiltration membrane assembly is equipped with the first electrical ball valve, first pressure sensor, the first safety valve, the hyperfiltration membrane assembly
Water purification outlet and high-pressure pump between pipeline be equipped with pressure switch, the second electrical ball valve, second pressure sensor and second peace
Full valve, the pipeline between the high-pressure pump and reverse osmosis membrane assembly are equipped with the 3rd pressure sensor, the 3rd safety valve and the first electricity
Dynamic tee ball valve, the pipeline between the water purification outlet and ultraviolet ray disinfector of the reverse osmosis membrane assembly are equipped with the second electric three passes
Ball valve, the pipeline between the concentrated water outlet of the hyperfiltration membrane assembly and concentrated water pipe is equipped with the 3rd electrical ball valve, the 4th pressure passes
Sensor, the 3rd electric three passes ball valve, first pressure regulating valve, the concentrated water outlet of the reverse osmosis membrane assembly are equipped with the 5th pressure and pass
Sensor, the 4th electric three passes ball valve and second pressure regulating valve, the concentrated water outlet of the hyperfiltration membrane assembly and going out for prefilter
The mouth of a river is connected by pipeline and the connecting line is equipped with the 4th electrical ball valve, the Free and concentrated water of the 3rd electric three passes ball valve
Pipe connects, and the water inlet of the 3rd electric three passes ball valve and the water inlet of hyperfiltration membrane assembly pass through on pipeline connection and the connecting line
Equipped with the 5th electrical ball valve, the water inlet of the high-pressure pump is connected with concentrated water pipe and the connecting line is equipped with the 6th electric ball
Valve, the Free of the first electric three passes ball valve and the water purification outlet of hyperfiltration membrane assembly pass through pipeline connection, the water inlet of high-pressure pump
It is connected with the water outlet of prefilter by pipeline and the pipeline is equipped with the 7th electrical ball valve, the water inlet and fresh water of high-pressure pump
Pipe is connected by pipeline and the pipeline is equipped with the 8th electrical ball valve, the second electric three passes ball valve and the 4th electric three passes ball valve
Free is connected with concentrated water pipe, the low-lift pump, high-pressure pump, ultraviolet ray disinfector, pressure switch, the first electrical ball valve,
Two electrical ball valves, the 3rd electrical ball valve, the 4th electrical ball valve, the 5th electrical ball valve, the 6th electrical ball valve, the 7th electrical ball valve,
8th electrical ball valve, first pressure sensor, second pressure sensor, the 3rd pressure sensor, the first electric three passes ball valve,
Two electric three passes ball valves, the 3rd electric three passes ball valve and the 4th electric three passes ball valve are connected with PLC.
The pressure relief vent of first safety valve, the second safety valve and the 3rd safety valve is connected with concentrated water pipe.
The free end of the seawater pipe is connected with seawater water tank, and seawater water tank is connected with water inlet pipe, the free end of fresh water pipe
Fresh water tanks are connected with, fresh water tanks are connected with outlet pipe.
The prefilter includes quartz filter and active carbon filter, and seawater is pre-processed, and can filter big
Fraction solids impurity, lifts the influent quality of hyperfiltration membrane assembly.
The hyperfiltration membrane assembly is composed in parallel by several ultrafiltration membranes, and ultrafiltration membrane can remove larger molecular organics (such as egg
White matter, bacterium), colloid and suspended solid, lift the influent quality of reverse osmosis membrane assembly.
The reverse osmosis membrane assembly is composed in series by several reverse osmosis membranes, and reverse osmosis membrane is by reverse-osmosis membrane element and instead
Putamina composition is permeated, is made of specification and the standard assembling of the prior art, the Water Sproading rate of equipment can be effectively improved.It is reverse osmosis
Putamina material is fiberglass (FRP), and seawater corrosion resistance, reverse osmosis membrane, which effectively removes, dissolves salt and molecular weight having more than 100
Machine thing, salt rejection rate is generally more than 98%.
The ultraviolet ray disinfector is using ultraviolet mercury as light source, and using being radiated in fluorescent tube during tribute vapor electric discharge, 253.7nm is purple
Outside line is main spectrum line, carries out disinfection, can kill or remove pathogenic microorganism, with no dead angle, energy consumption it is low, without additionization
The features such as learning medicament, non-secondary pollution.
The low-pressure section of connecting line in described the utility model, is made of UPVC tubing and pipe fitting bonding, by low pressure
Water supplying pump, the mesohigh part pipeline of connecting line, is composed using high-pressure rubber pipe and the pipe fitting of Stainless steel 316 material, by
High pressure water supplying pump.
Described the utility model includes sea water desalination and cleaning function, and the cleaning function recoils comprising hyperfiltration membrane assembly
Wash, reverse osmosis membrane assembly rinses and reverse osmosis membrane assembly desalination water rinses three kinds.Sea water desalination and the online switching of cleaning function,
It is to control the switch of corresponding electrical ball valve and the corresponding electric three passes ball valve of control to change the flow direction of interior media by PLC,
And realized under the actuating pressure of pump.
The seawater desalination functions, low-lift pump, high-pressure pump and ultraviolet ray disinfector start, the first electrical ball valve, the second electricity
Dynamic ball valve and the 3rd electrical ball valve are opened, and seawater is successively by seawater pipe, low-lift pump, prefilter, hyperfiltration membrane assembly, high pressure
Pump, reverse osmosis membrane assembly, ultraviolet ray disinfector and fresh water pipe are entered in fresh water tanks.Hyperfiltration membrane assembly and reverse osmosis membrane at the same time
The concentrated water that component produces is exported by respective concentrated water and discharged via concentrated water pipe.
The hyperfiltration membrane assembly backwashing function, low-lift pump and high pressure pump startup, the 4th electrical ball valve, the 5th electric ball
Valve, the 6th electrical ball valve are opened, and the Free of the first electric three passes ball valve and the 3rd electric three passes ball valve is opened, and seawater passes through successively
Cross seawater pipe, low-lift pump, prefilter, the concentrated water outlet of hyperfiltration membrane assembly, hyperfiltration membrane assembly, hyperfiltration membrane assembly water inlet into
Enter to concentrated water tube side-by-side.When seawater passes through concentrated water pipe at the same time, high pressure pump startup, seawater is from concentrated water pipe via the 6th electrical ball valve
Hyperfiltration membrane assembly is entered by the water purification outlet of hyperfiltration membrane assembly by high-pressure pump, then via the first electric three passes ball valve, then is surpassed
The water inlet of filter membrane component carries out circulation flushing to concentrated water pipe.
The reverse osmosis membrane assembly pre-washing function, low-lift pump and high pressure pump startup, the 7th electrical ball valve are opened, and the 4th is electronic
The Free of tee ball valve opens, and seawater is successively by seawater pipe, low-lift pump, prefilter, high-pressure pump, reverse osmosis membrane assembly
The concentrated water outlet of water inlet, reverse osmosis membrane assembly goes out into concentrated water tube side-by-side.
The reverse osmosis membrane assembly fresh water pre-washing function, high pressure pump startup, the 8th electrical ball valve are opened, the 4th electric three passes
The Free of ball valve is opened, the fresh water in fresh water tanks successively by fresh water pipe, high-pressure pump, reverse osmosis membrane assembly water inlet,
The concentrated water outlet of reverse osmosis membrane assembly goes out into concentrated water tube side-by-side.
The first electric three passes ball valve, the second electric three passes ball valve, the 3rd electric three passes ball valve and the 4th electric three passes
Ball valve is L-type electric three passes ball valve, only serves the effect of distribution.
Pipeline between the water purification outlet and ultraviolet ray disinfector of the reverse osmosis membrane assembly is equipped with the salt amount being connected with PLC
Sensor, can detect the salt content of water purification outlet water outlet automatically, when production water salt content is above standard scope, the second electric three passes
Ball valve Free is opened, and water purification outlet water outlet will be discharged directly from concentrated water pipe.
Working pressure of pipeline where the pressure switch monitoring, and determine whether high-pressure pump starts accordingly, avoid no water inlet
Or enter without enough water and cause high-pressure pump to dally or damage, first pressure Sensor monitoring hyperfiltration membrane assembly water inlet end work pressure
Power, second pressure Sensor monitoring high-pressure pump water inlet end pressure, the 3rd pressure sensor monitoring reverse osmosis membrane assembly water inlet end work
Make pressure, the 4th pressure sensor monitoring hyperfiltration membrane assembly concentrated water end operating pressure, the 5th pressure sensor monitoring reverse osmosis membrane
Group concentrated water end operating pressure, first pressure regulating valve are used to adjust hyperfiltration membrane assembly operating pressure, and second pressure regulating valve is used for
Adjust reverse osmosis membrane assembly operating pressure.
The cleaning function is the film group caused by suspended material that may be present in sea water desalination feedwater or indissoluble material
Part pollution is purged.Due to pollutant include calcium carbonate scale, calcium sulfate scale, metal oxide dirt, silicon deposits and it is organic or
Biogenic deposits etc., once coming into operation, cleaning is indispensable link, and pollution type is complex, to prevent from drawing
Cross contamination is played, cleaning also answers subassembly to carry out.The cleaning function can set different cleanings by the water inlet of seawater pipe
Medium, such as fresh water, chemical etc..
The membrane module pollution is divided into slight pollution and serious pollution, is to pass through hyperfiltration membrane assembly or reverse osmosis membrane by PLC
The operating pressure difference at component membrane module water inlet end and concentrated water end judges.When membrane module reaches slight pollution setting, electric-controlled
Case processed sends chemical cleaning alarm, it is necessary to configure corresponding chemical cleaning solution according to pollutant, is placed on seawater inlet port, presses
Hyperfiltration membrane assembly backwashes or reverse osmosis membrane assembly rinses, you can carries out chemical cleaning to membrane module.When membrane module reaches weight
During degree pollution setting, electric control box sends alarm, and shuts down, it is necessary to carry out cleaning or replacing offline membrane module to membrane module.
The cleaning function can be realized that automatic running is cleaned, lifted for example, equipment under PLC controls by setting time
After running 5 hours, equipment automated execution cleaning function.Hyperfiltration membrane assembly backwash, reverse osmosis membrane assembly are rinsed, reverse osmosis membrane
Component desalination water rinse three kinds of functions can isolated operation, can also combined running, and the time is freely set.
The desalinator for seawater further includes the casing of accommodating all above-mentioned all devices components, and casing includes frame, frame
Bottom is equipped with protection network, and frame roof is equipped with lifting bolt, remaining frame is outer can to keep out wind and rain covered with exterior sheet metal component,
Protection network, which can breathe freely, can prevent worm mouse from entering damage cable tubing while heat dissipation.
The casing is equipped with electric control box, and PLC is arranged in electric control box, and electric control box is equipped with and PLC
The unlatching button of connection, close button, emergency stop button, power supply indicator, display screen, digital indicator, temperature sensor and police
Device is reported, display screen can show for touch-screen can show current work with the operating mode of control device and working time, display screen
Operation mode, current device working time and calculation device working time, digital indicator can show hyperfiltration membrane assembly influent pressure
Power, hyperfiltration membrane assembly discharge pressure, high pressure pump suction supply pressure, reverse osmosis membrane assembly intake pressure, reverse osmosis membrane assembly water outlet pressure
The parameter such as power and desalination water salt content, temperature sensor are used to monitor electric control box operating temperature, when equipment operation irregularity or
When person's operating parameter exceedes the scope of setting, the utility model shuts down and sends alarm signal.
The utility model beneficial effect is：Can automatically it manipulate, with automatic cleaning function, and with the work(that monitors and alarm
Can, maintenance cost is low, and cost of labor is low, and build is more compact, is convenient for carrying, and particularly with small hull, it is new to equip this practicality
Type can operation at sea for a long time, solve the problems, such as desalination.
Brief description of the drawings
Fig. 1 is the connection relationship diagram of one embodiment of the utility model,
Fig. 2 is the schematic diagram of the sea water desalination of Fig. 1 embodiments, and thick line is effect pipeline in figure,
Fig. 3 is the schematic diagram of the hyperfiltration membrane assembly backwash of Fig. 1 embodiments, and thick line is effect pipeline in figure,
Fig. 4 is the schematic diagram that the reverse osmosis membrane assembly of Fig. 1 embodiments rinses, and thick line is effect pipeline in figure,
Fig. 5 is the schematic diagram that the reverse osmosis membrane assembly desalination water of Fig. 1 embodiments rinses, and thick line is effect pipeline in figure.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art's all other embodiments obtained, all belong to
In the scope of the utility model protection.
As shown in Figure 1, a kind of described desalinator for seawater of the present embodiment, including PLC and seawater pipe, concentrated water pipe, fresh water
Pipe, low-lift pump, prefilter, hyperfiltration membrane assembly, high-pressure pump, reverse osmosis membrane assembly and ultraviolet ray disinfector, hyperfiltration membrane assembly and
Reverse osmosis membrane assembly include water purification outlet and concentrated water outlet, low-lift pump water inlet connection seawater pipe, prefilter into
The mouth of a river is connected with the water outlet of low-lift pump, and the water inlet of hyperfiltration membrane assembly is connected with the water outlet of prefilter, high-pressure pump into
The mouth of a river is connected with the water purification outlet of hyperfiltration membrane assembly, and the water inlet of reverse osmosis membrane assembly and the water outlet of high-pressure pump connect, ultraviolet
The water inlet of line sterilizer and the water purification outlet of reverse osmosis membrane assembly connect, the water outlet connection fresh water pipe of ultraviolet ray disinfector,
The outlet of the concentrated water of hyperfiltration membrane assembly and reverse osmosis membrane assembly is all connected with concentrated water pipe, the pipeline between prefilter and hyperfiltration membrane assembly
Equipped with the first electrical ball valve, first pressure sensor, the first safety valve, the water purification outlet and high-pressure pump of the hyperfiltration membrane assembly it
Between pipeline be equipped with pressure switch, the second electrical ball valve, second pressure sensor and the second safety valve, the high-pressure pump and reverse osmosis
Pipeline between permeable membrane component is equipped with the 3rd pressure sensor, the 3rd safety valve and the first electric three passes ball valve, described reverse osmosis
Pipeline between the water purification outlet and ultraviolet ray disinfector of membrane module is equipped with the second electric three passes ball valve, the hyperfiltration membrane assembly
Concentrated water export and concentrated water pipe between pipeline be equipped with the 3rd electrical ball valve, the 4th pressure sensor, the 3rd electric three passes ball valve,
First pressure regulating valve, the concentrated water outlet of the reverse osmosis membrane assembly is equipped with the 5th pressure sensor, the 4th electric three passes ball valve
With second pressure regulating valve, the concentrated water outlet of the hyperfiltration membrane assembly is connected with the water outlet of prefilter by pipeline and the company
Adapter road is equipped with the 4th electrical ball valve, and the Free of the 3rd electric three passes ball valve is connected with concentrated water pipe, the 3rd electric three passes ball
The water inlet of valve and the water inlet of hyperfiltration membrane assembly are equipped with the 5th electrical ball valve by pipeline connection and the connecting line, described
The water inlet of high-pressure pump is connected with concentrated water pipe and the connecting line is equipped with the 6th electrical ball valve, the first electric three passes ball valve from
Pipe is passed through by pipeline connection, the water inlet of high-pressure pump and the water outlet of prefilter by the water purification outlet of mouth and hyperfiltration membrane assembly
Road connects and the pipeline is equipped with the 7th electrical ball valve, and the water inlet of high-pressure pump is connected with fresh water pipe by pipeline and on the pipeline
Equipped with the 8th electrical ball valve, the Free of the second electric three passes ball valve and the 4th electric three passes ball valve is connected with concentrated water pipe, institute
State low-lift pump, high-pressure pump, ultraviolet ray disinfector, pressure switch, the first electrical ball valve, the second electrical ball valve, the 3rd electrical ball valve,
4th electrical ball valve, the 5th electrical ball valve, the 6th electrical ball valve, the 7th electrical ball valve, the 8th electrical ball valve, first pressure sensing
Device, second pressure sensor, the 3rd pressure sensor, the first electric three passes ball valve, the second electric three passes ball valve, the 3rd electronic three
Pass ball valve and the 4th electric three passes ball valve are connected with PLC.
The pressure relief vent of first safety valve, the second safety valve and the 3rd safety valve is connected with concentrated water pipe.
The free end of the seawater pipe is connected with seawater water tank, and seawater water tank is connected with water inlet pipe, the free end of fresh water pipe
Fresh water tanks are connected with, fresh water tanks are connected with outlet pipe.
The prefilter includes quartz filter and active carbon filter, and seawater is pre-processed, and can filter big
Fraction solids impurity, lifts the influent quality of hyperfiltration membrane assembly.
The hyperfiltration membrane assembly is composed in parallel by several ultrafiltration membranes, and ultrafiltration membrane can remove larger molecular organics (such as egg
White matter, bacterium), colloid and suspended solid, lift the influent quality of reverse osmosis membrane assembly.
The reverse osmosis membrane assembly is composed in series by several reverse osmosis membranes, and reverse osmosis membrane is by reverse-osmosis membrane element and instead
Putamina composition is permeated, is made of specification and the standard assembling of the prior art, the Water Sproading rate of equipment can be effectively improved.It is reverse osmosis
Putamina material is fiberglass (FRP), and seawater corrosion resistance, reverse osmosis membrane, which effectively removes, dissolves salt and molecular weight having more than 100
Machine thing, salt rejection rate is generally more than 98%.
The ultraviolet ray disinfector is using ultraviolet mercury as light source, and using being radiated in fluorescent tube during tribute vapor electric discharge, 253.7nm is purple
Outside line is main spectrum line, carries out disinfection, can kill or remove pathogenic microorganism, with no dead angle, energy consumption it is low, without additionization
The features such as learning medicament, non-secondary pollution.
The low-pressure section of connecting line in described the utility model, is made of UPVC tubing and pipe fitting bonding, by low pressure
Water supplying pump, the mesohigh part pipeline of connecting line, is composed using high-pressure rubber pipe and the pipe fitting of Stainless steel 316 material, by
High pressure water supplying pump.
Described the utility model includes sea water desalination and cleaning function, and the cleaning function recoils comprising hyperfiltration membrane assembly
Wash, reverse osmosis membrane assembly rinses and reverse osmosis membrane assembly desalination water rinses three kinds.Sea water desalination and the online switching of cleaning function,
It is to control the switch of corresponding electrical ball valve and the corresponding electric three passes ball valve of control to change the flow direction of interior media by PLC,
And realized under the actuating pressure of pump.
As shown in Fig. 2, during the seawater desalination functions, low-lift pump, high-pressure pump and ultraviolet ray disinfector start, and first is electronic
Ball valve, the second electrical ball valve and the 3rd electrical ball valve are opened, and seawater is successively by seawater pipe, low-lift pump, prefilter, ultrafiltration membrane
Component, high-pressure pump, reverse osmosis membrane assembly, ultraviolet ray disinfector and fresh water pipe are entered in fresh water tanks.Hyperfiltration membrane assembly at the same time
Exported by respective concentrated water with the concentrated water that reverse osmosis membrane assembly produces and discharged via concentrated water pipe.
As shown in figure 3, the hyperfiltration membrane assembly backwashing function, low-lift pump and high pressure pump startup, the 4th electrical ball valve,
Five electrical ball valves, the 6th electrical ball valve are opened, and the Free of the first electric three passes ball valve and the 3rd electric three passes ball valve is opened, sea
Water is successively by seawater pipe, low-lift pump, prefilter, the concentrated water outlet of hyperfiltration membrane assembly, hyperfiltration membrane assembly, hyperfiltration membrane assembly
Water inlet enters concentrated water tube side-by-side and goes out.When seawater passes through concentrated water pipe at the same time, high pressure pump startup, seawater is from concentrated water pipe via the 6th
Electrical ball valve enters ultrafiltration membrane group by high-pressure pump, then via the first electric three passes ball valve by the water purification outlet of hyperfiltration membrane assembly
Part, then hyperfiltration membrane assembly water inlet to concentrated water pipe, carry out circulation flushing.
As shown in figure 4, the reverse osmosis membrane assembly pre-washing function, low-lift pump and high pressure pump startup, the 7th electrical ball valve are opened
Open, the Free of the 4th electric three passes ball valve is opened, and seawater is successively by seawater pipe, low-lift pump, prefilter, high-pressure pump, anti-
The concentrated water outlet of the water inlet, reverse osmosis membrane assembly of permeable membrane element goes out into concentrated water tube side-by-side.
As shown in figure 5, the reverse osmosis membrane assembly fresh water pre-washing function, high pressure pump startup, the 8th electrical ball valve are opened, the
The Free of four electric three passes ball valves is opened, and the fresh water in fresh water tanks is successively by fresh water pipe, high-pressure pump, reverse osmosis membrane assembly
Water inlet, reverse osmosis membrane assembly concentrated water outlet go out into concentrated water tube side-by-side.
The first electric three passes ball valve, the second electric three passes ball valve, the 3rd electric three passes ball valve and the 4th electric three passes
Ball valve is L-type electric three passes ball valve, only serves the effect of distribution.
Pipeline between the water purification outlet and ultraviolet ray disinfector of the reverse osmosis membrane assembly is equipped with the salt amount being connected with PLC
Sensor, can detect the salt content of water purification outlet water outlet automatically, when production water salt content is above standard scope, the second electric three passes
Ball valve Free is opened, and water purification outlet water outlet will be discharged directly from concentrated water pipe.
Working pressure of pipeline where the pressure switch monitoring, and determine whether high-pressure pump starts accordingly, avoid no water inlet
Or enter without enough water and cause high-pressure pump to dally or damage, first pressure Sensor monitoring hyperfiltration membrane assembly water inlet end work pressure
Power, second pressure Sensor monitoring high-pressure pump water inlet end pressure, the 3rd pressure sensor monitoring reverse osmosis membrane assembly water inlet end work
Make pressure, the 4th pressure sensor monitoring hyperfiltration membrane assembly concentrated water end operating pressure, the 5th pressure sensor monitoring reverse osmosis membrane
Group concentrated water end operating pressure, first pressure regulating valve are used to adjust hyperfiltration membrane assembly operating pressure, and second pressure regulating valve is used for
Adjust reverse osmosis membrane assembly operating pressure.
The cleaning function is the film group caused by suspended material that may be present in sea water desalination feedwater or indissoluble material
Part pollution is purged.Due to pollutant include calcium carbonate scale, calcium sulfate scale, metal oxide dirt, silicon deposits and it is organic or
Biogenic deposits etc., once coming into operation, cleaning is indispensable link, and pollution type is complex, to prevent from drawing
Cross contamination is played, cleaning also answers subassembly to carry out.The cleaning function can set different cleanings by the water inlet of seawater pipe
Medium, such as fresh water, chemical etc..
The membrane module pollution is divided into slight pollution and serious pollution, is to pass through hyperfiltration membrane assembly or reverse osmosis membrane by PLC
The operating pressure difference at component membrane module water inlet end and concentrated water end judges.When membrane module reaches slight pollution setting, electric-controlled
Case processed sends chemical cleaning alarm, it is necessary to configure corresponding chemical cleaning solution according to pollutant, is placed on seawater inlet port, presses
Hyperfiltration membrane assembly backwashes or reverse osmosis membrane assembly rinses, you can carries out chemical cleaning to membrane module.When membrane module reaches weight
During degree pollution setting, electric control box sends alarm, and shuts down, it is necessary to carry out cleaning or replacing offline membrane module to membrane module.
The cleaning function can be realized that automatic running is cleaned, lifted for example, equipment under PLC controls by setting time
After running 5 hours, equipment automated execution cleaning function.Hyperfiltration membrane assembly backwash, reverse osmosis membrane assembly are rinsed, reverse osmosis membrane
Component desalination water rinse three kinds of functions can isolated operation, can also combined running, and the time is freely set.
The desalinator for seawater further includes the casing of accommodating all above-mentioned all devices components, and casing includes frame, frame
Bottom is equipped with protection network, and frame roof is equipped with lifting bolt, remaining frame is outer can to keep out wind and rain covered with exterior sheet metal component,
Protection network, which can breathe freely, can prevent worm mouse from entering damage cable tubing while heat dissipation.
The casing is equipped with electric control box, and PLC is arranged in electric control box, and electric control box is equipped with and PLC
The unlatching button of connection, close button, emergency stop button, power supply indicator, display screen, digital indicator, temperature sensor and police
Device is reported, display screen can show for touch-screen can show current work with the operating mode of control device and working time, display screen
Operation mode, current device working time and calculation device working time, digital indicator can show hyperfiltration membrane assembly influent pressure
Power, hyperfiltration membrane assembly discharge pressure, high pressure pump suction supply pressure, reverse osmosis membrane assembly intake pressure, reverse osmosis membrane assembly water outlet pressure
The parameter such as power and desalination water salt content, temperature sensor are used to monitor electric control box operating temperature, when equipment operation irregularity or
When person's operating parameter exceedes the scope of setting, the utility model shuts down and sends alarm signal.
The utility model can be manipulated automatically, with automatic cleaning function, and with monitoring and warning function, maintenance cost
Low, cost of labor is low, and build is more compact, is convenient for carrying, and particularly with small hull, equipment the utility model can be for a long time in sea
Upper operation, solves the problems, such as desalination.
The utility model is not limited to above-mentioned preferred forms, anyone can draw under the enlightenment of the utility model
Other various forms of products, however, make any change in its shape or structure, it is every that there is same as the present application or phase
Approximate technical solution, all falls within the scope of protection of the utility model.
Claims (10)
1. a kind of desalinator for seawater, including PLC, seawater pipe, concentrated water pipe, fresh water pipe and low-lift pump, it is characterised in that described one kind
Desalinator for seawater further includes prefilter, hyperfiltration membrane assembly, high-pressure pump, reverse osmosis membrane assembly and ultraviolet ray disinfector, ultrafiltration membrane
Component and reverse osmosis membrane assembly include water purification outlet and concentrated water outlet, the water inlet connection seawater pipe of low-lift pump, pre-filtering
The water inlet of device is connected with the water outlet of low-lift pump, and the water inlet of hyperfiltration membrane assembly is connected with the water outlet of prefilter, high pressure
The water inlet of pump is connected with the water purification outlet of hyperfiltration membrane assembly, and the water inlet of reverse osmosis membrane assembly and the water outlet of high-pressure pump connect
Connect, the water inlet of ultraviolet ray disinfector and the water purification outlet of reverse osmosis membrane assembly connect, the water outlet connection of ultraviolet ray disinfector
The concentrated water outlet of fresh water pipe, hyperfiltration membrane assembly and reverse osmosis membrane assembly is all connected with concentrated water pipe, prefilter and hyperfiltration membrane assembly it
Between pipeline be equipped with the first electrical ball valve, first pressure sensor, the first safety valve, the water purification outlet of the hyperfiltration membrane assembly with
Pipeline between high-pressure pump is equipped with pressure switch, the second electrical ball valve, second pressure sensor and the second safety valve, the high pressure
Pipeline between pump and reverse osmosis membrane assembly is equipped with the 3rd pressure sensor, the 3rd safety valve and the first electric three passes ball valve, institute
The pipeline stated between the water purification outlet of reverse osmosis membrane assembly and ultraviolet ray disinfector is equipped with the second electric three passes ball valve, the ultrafiltration
Pipeline between the concentrated water outlet of membrane module and concentrated water pipe is equipped with the 3rd electrical ball valve, the 4th pressure sensor, the 3rd electronic
Tee ball valve, first pressure regulating valve, the concentrated water outlet of the reverse osmosis membrane assembly is equipped with the 5th pressure sensor, the 4th electronic
Tee ball valve and second pressure regulating valve, the concentrated water outlet of the hyperfiltration membrane assembly and the water outlet of prefilter are connected by pipeline
Connect and the connecting line is equipped with the 4th electrical ball valve, the Free of the 3rd electric three passes ball valve is connected with concentrated water pipe, the 3rd electricity
It is electronic that the water inlet of dynamic tee ball valve and the water inlet of hyperfiltration membrane assembly by pipeline connection and the connecting line are equipped with the 5th
Ball valve, the water inlet of the high-pressure pump is connected with concentrated water pipe and the connecting line is equipped with the 6th electrical ball valve, and first electronic three
The Free of pass ball valve and the water purification outlet of hyperfiltration membrane assembly pass through pipeline connection, the water inlet of high-pressure pump and going out for prefilter
The mouth of a river is connected by pipeline and the pipeline is equipped with the 7th electrical ball valve, and the water inlet of high-pressure pump is connected with fresh water pipe by pipeline
And the pipeline is equipped with the 8th electrical ball valve, the Free of the second electric three passes ball valve and the 4th electric three passes ball valve is and concentrated water
Pipe connects, the low-lift pump, high-pressure pump, ultraviolet ray disinfector, pressure switch, the first electrical ball valve, the second electrical ball valve, the 3rd
Electrical ball valve, the 4th electrical ball valve, the 5th electrical ball valve, the 6th electrical ball valve, the 7th electrical ball valve, the 8th electrical ball valve,
One pressure sensor, second pressure sensor, the 3rd pressure sensor, the first electric three passes ball valve, the second electric three passes ball valve,
3rd electric three passes ball valve and the 4th electric three passes ball valve are connected with PLC.
2. desalinator for seawater according to claim 1, it is characterised in that first safety valve, the second safety valve and the 3rd
The pressure relief vent of safety valve is connected with concentrated water pipe.
3. desalinator for seawater according to claim 1, it is characterised in that the free end of the seawater pipe is connected with seawater water
Case, seawater water tank are connected with water inlet pipe, and the free end of fresh water pipe is connected with fresh water tanks, and fresh water tanks are connected with outlet pipe.
4. desalinator for seawater according to claim 1, it is characterised in that the prefilter include quartz filter and
Active carbon filter.
5. desalinator for seawater according to claim 1, it is characterised in that the hyperfiltration membrane assembly by several ultrafiltration membranes simultaneously
Connection composition.
6. desalinator for seawater according to claim 1, it is characterised in that the reverse osmosis membrane assembly is by several reverse osmosis
Permeable membrane is composed in series, and reverse osmosis membrane is made of reverse-osmosis membrane element and pressure vessel for reverse osmosis.
7. desalinator for seawater according to claim 1, it is characterised in that the first electric three passes ball valve, second electronic three
Pass ball valve, the 3rd electric three passes ball valve and the 4th electric three passes ball valve are L-type electric three passes ball valves.
8. desalinator for seawater according to claim 1, it is characterised in that the water purification outlet and purple of the reverse osmosis membrane assembly
Pipeline between outside line sterilizer is equipped with the salt quantity sensor being connected with PLC.
9. desalinator for seawater according to claim 1, it is characterised in that the desalinator for seawater further include it is accommodating it is all on
The casing of all devices component is stated, casing includes frame, and base of frame is equipped with protection network, remaining frame is outer covered with exterior metal plate
Golden part.
10. desalinator for seawater according to claim 9, it is characterised in that the casing is equipped with electric control box, and PLC is set
Put in electric control box, electric control box is equipped with the unlatching button being connected with PLC, closing button, emergency stop button, power supply and refers to
Show lamp, display screen, digital indicator, temperature sensor and alarm, display screen is touch-screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721210190.5U CN207330606U (en) | 2017-09-20 | 2017-09-20 | A kind of desalinator for seawater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721210190.5U CN207330606U (en) | 2017-09-20 | 2017-09-20 | A kind of desalinator for seawater |
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| Publication Number | Publication Date |
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| CN207330606U true CN207330606U (en) | 2018-05-08 |
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| CN201721210190.5U Active CN207330606U (en) | 2017-09-20 | 2017-09-20 | A kind of desalinator for seawater |
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| Country | Link |
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| CN (1) | CN207330606U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115193266A (en) * | 2022-06-17 | 2022-10-18 | 中南大学 | Device for in-situ monitoring of concentration of permeant ions |
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2017
- 2017-09-20 CN CN201721210190.5U patent/CN207330606U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115193266A (en) * | 2022-06-17 | 2022-10-18 | 中南大学 | Device for in-situ monitoring of concentration of permeant ions |
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