CN205295039U - Electrically -driven membrane seawater desalination integrated equipment - Google Patents

Electrically -driven membrane seawater desalination integrated equipment Download PDF

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Publication number
CN205295039U
CN205295039U CN201521019326.5U CN201521019326U CN205295039U CN 205295039 U CN205295039 U CN 205295039U CN 201521019326 U CN201521019326 U CN 201521019326U CN 205295039 U CN205295039 U CN 205295039U
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CN
China
Prior art keywords
water
dense
water tank
pump
tank
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Expired - Fee Related
Application number
CN201521019326.5U
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Chinese (zh)
Inventor
刘瑞聪
高学理
单宝田
王习品
倪亭亭
柯爌琼
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QINGDAO HAIDA NORTH ENERGY AND ENVIRONMENT Co Ltd
Ocean University of China
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QINGDAO HAIDA NORTH ENERGY AND ENVIRONMENT Co Ltd
Ocean University of China
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Application filed by QINGDAO HAIDA NORTH ENERGY AND ENVIRONMENT Co Ltd, Ocean University of China filed Critical QINGDAO HAIDA NORTH ENERGY AND ENVIRONMENT Co Ltd
Priority to CN201521019326.5U priority Critical patent/CN205295039U/en
Application granted granted Critical
Publication of CN205295039U publication Critical patent/CN205295039U/en
Expired - Fee Related legal-status Critical Current
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    • 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

Abstract

The utility model belongs to desalination, concretely relates to electrically -driven membrane seawater desalination integrated equipment. The output of sea water storage water tank has connected gradually seawater lift pump, micro -filtration device, hyperfiltration membrane device, backwash water pump and first water tank, hyperfiltration membrane device's output directly discharges the dense water of ultrafiltration, and the ultrafiltration is produced water and is directly got into first water tank, first water tank is provided with the three routes output, and first output has connected gradually dense water elevator pump, dense water water tank and dense water -circulating pump, the output of dense water water tank directly discharges the dense water of ultrafiltration, the second output has connected gradually utmost point water elevator pump, utmost point water water tank and utmost point water intake pump, the third output has connected gradually fresh water elevator pump, fresh water water tank and fresh water circulating pump, the output of electrically -driven membrane device flows back dense water reflux to dense water water tank to the fresh water water tank with fresh water, directly discharges the utmost point water of output, the output of fresh water water tank pass through the active carbon adsorption device and link to each other with the drinking water case, drinking water case outer end is provided with water faucet.

Description

A kind of electric drive film desalinization integrated equipment
Technical field
This utility model belongs to field of seawater desalination, is specifically related to a kind of electric drive film desalinization integrated equipment.
Background technology
Along with the fast development of China's economy, water resources consumption is multiplied, freshwater resources wretched insufficiency, and coastal cities have abundant seawater resources, should make full use of seawater resources, using desalinization as one of important channel solving fresh water shortage. As the increment technique of increasing income of water resource, desalinization has become as the important channel solving global water resources crisis. Although China's desalinization has tentatively possessed industrialized development condition, but the design of the exploitation manufacturing capacity of research level, innovation ability, equipment, system and the aspect such as integrated and abroad still have bigger gap.
Traditional handicraft sea water desalting equipment technique is tediously long, and early stage pretreatment is batch (-type) chlorination technique such as, adds antisludging agent technique, complex operation, operating cost is high, and in pretreatment, bacteria-eliminating efficacy is poor, film easily becomes the hotbed of bacteria breed, seriously reduces the life-span of film and reduces the treatment effect of film.
Utility model content
According to the deficiencies in the prior art, this utility model provides a kind of novel high antipollution, long service life, the electric drive film desalinization integrated equipment that operating cost is low.
A kind of electric drive film desalinization integrated equipment disclosed in the utility model, this equipment includes sea water storage tank, and the outfan of sea water storage tank is connected with seawater lift pump, micro-filtration, ultra-filtration membrane device, backwash water pump and the first water tank in turn; Dense for ultrafiltration water is directly discharged by the outfan of ultra-filtration membrane device, and ultrafiltration is produced water and is directly entered the first water tank; Described first water tank is provided with No. three outfans, and the first outfan is connected with dense water elevator pump, dense water tank and dense water-circulating pump in turn; Dense for ultrafiltration water is directly discharged by the outfan of dense water tank; Second outfan is connected with pole water elevator pump, pole water tank and pole water intake pump in turn; 3rd outfan is connected with fresh water elevator pump, fresh water tanks and fresh water circulating pump in turn; The electric drive film device that described dense water-circulating pump, pole water intake pump control with commutator with the outfan of fresh water circulating pump is connected; Fresh water, by concentrate recirculation to dense water tank, is back to fresh water tanks, is expelled directly out by the pole water of output by the outfan of electric drive film device; The outfan of described fresh water tanks is connected with potable water tank by absorbent charcoal adsorber, and potable water tank outer end is provided with drinking water faucet.
Preferred version is as follows:
The micro-filtration membrane aperture of micro-filtration is 0.02-10 ��m.
The ultrafilter membrane of ultra-filtration membrane device is Kynoar material, surface aggregate anti-pollution layer, and ultrafilter membrane aperture is 0.01 ��m.
Absorbent charcoal material granularity in absorbent charcoal adsorber is 4-30 order, and material adopts bamboo material, and packed density is 0.50-0.65g/mL.
Equipment pipeline is provided with electromagnetic valve.
Equipment adopts PLC to control.
Adopting a kind of electric drive film desalination process of this equipment, step is as follows:
(1) in sea water storage tank, salinity is that the sea water of 32950-34650mg/L enters in micro-filtration through seawater lift pump, keeps water intake velocity at 200-250L/h, and the time of staying is 15-20min, delivery turbidity laggard less than 0.1NTU enter ultra-filtration membrane device; Now the salinity of sea water is 31940-32350mg/L, keeps water intake velocity at 195-200L/h, time of staying 15-20min;
(2) process through ultra-filtration membrane device, detect antibacterial and the E. CoIi content of water outlet place, it is judged that whether effluent quality meets the electrodialysis influent quality requirement set; It is unsatisfactory for setting water quality requirement and then repeats step (2), meet setting water quality requirement and then carry out step (3);
(3) dense water elevator pump, pole water elevator pump and fresh water elevator pump power are controlled, the outfan processing water in first water tank is each led in dense water tank, fresh water tanks and pole water tank, makes the flow of dense water tank, fresh water tanks and pole water tank at 60-70L/h;
(4) electric current density regulating and controlling commutator is 25-30mA/cm2, dense water-circulating pump by the dense water in dense water tank, pole water intake pump by the pole water in the water tank of pole and fresh water circulating pump by the freshwater input electric drive film device in fresh water tanks; Make it after electric drive film device processes, by concentrate recirculation to dense water tank, fresh water is back to fresh water tanks, the pole water of output is expelled directly out; Control fresh water tanks water outlet salinity within 400mg/L after enter absorbent charcoal adsorber; The salt rejection rate of step (4) is preferably 98.8-99.3%.
(5) absorbent charcoal adsorber controls the salinity of water outlet place within 400mg/L, passes in potable water tank, controls to banish use by external drinking water faucet.
Operation principle: sea water from sea water storage tank by elevator pump through micro-filtration, the particle diameter granule more than micro-filtration membrane aperture and supramolecular material are trapped on face, it is prevented that bigger material affects next step ultrafiltration effect; Being entered in ultra-filtration membrane device by the sea water of micro-filtration, the colloidal substance in former sea water, macromolecular substances, granule, antibacterial, virus and protozoacide etc. are retained, the dense water of ultrafiltration directly discharges, and ultrafiltration is produced water and entered the first water tank; Ultra-filtration membrane device is carried out by the water in the first water tank in part through backwash water pump, dense water tank, pole water tank and fresh water tanks is respectively enterd in part through dense water elevator pump, pole water elevator pump and fresh water elevator pump, wherein, water in dense water tank, pole water tank and fresh water tanks is directly entered electric drive membrane stack, electric drive film in heap film is homogeneous ion-exchange membrane, electrode adopts high current density electrode, and by rectifier power supply, electric drive film membrane stack isolates fresh water, dense water and pole water; Dense water, fresh water are recycled into dense water tank and fresh water tanks respectively, the dense water of part directly discharges from dense water tank, and pole water directly discharges from electric drive film membrane stack, and fresh water is entered absorbent charcoal adsorber by fresh water tanks, enter potable water tank by activated carbon, directly can be drunk by drinking water spigot.
Wherein, ultrafilter membrane adopts material to be the high pollution-resistant membrane of Kynoar, can effectively prevent antibacterial, the delay of microorganism is grown, and can retain the float in sea water, algae and noxious bacteria etc.Water transport coefficient >=the 115L/m of film2H 0.1MPa, there is higher water flux, there is good fracture strength and extension at break, use procedure not easily occurs fracture of wire phenomenon, there is the performances such as good acid and alkali-resistance, organic solvent-resistant, grease resistance, light aging resisting, multiple method therefore can be used repeatedly to clean, to remove pollutant, recover membrane flux, increase the service life. The electric drive film that this utility model adopts is homogeneous ion-exchange membrane, and producing water ratio and salt rejection rate are stable, the features such as frequently pole-reversing electroosmosis system also has automaticity height, remarkable in economical benefits.
The advantage of this equipment: can keep high current efficiency in desalination, concentration, separation, significantly improves selectivity and the effectiveness of membrane separation technique, decreases the concentration diffusion of electrical leakage quantity and film, substantially increases current efficiency. The total salt rejection rate of system is more than 98.8%, and energy consumption is about 7kWh/t water, it is simple to industrial popularization and application.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model;
In figure, 1, sea water storage tank, 2, seawater lift pump, 3, micro-filtration, 4, ultra-filtration membrane device, 5, backwash water pump, 6, the first water tank, 7, dense water elevator pump, 8, pole water elevator pump, 9, fresh water elevator pump, 10, dense water tank, 11, pole water tank, 12, fresh water tanks, 13, dense water-circulating pump, 14, pole water intake pump, 15, fresh water circulating pump, 16, commutator, 17, electric drive film device, 18, absorbent charcoal adsorber, 19, potable water tank, 20, drinking water faucet, A, ultrafiltration concentrated water discharge, B, pole water discharge.
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is described in detail, but this utility model is not limited to specific embodiment.
Embodiment 1:
A kind of electric drive film desalinization integrated equipment, this setting includes sea water storage tank 1, and the outfan of sea water storage tank 1 is connected with seawater lift pump 2, micro-filtration 3, ultra-filtration membrane device 4, backwash water pump 5 and the first water tank 6 in turn; The outfan of ultra-filtration membrane device is by ultrafiltration concentrated water discharge A, and ultrafiltration is produced water and is directly entered the first water tank 6; Described first water tank 6 is provided with No. three outfans, and the first outfan is connected with dense water elevator pump 7, dense water tank 10 and dense water-circulating pump 13 in turn; The outfan of dense water tank 10 is by ultrafiltration concentrated water discharge A; Second outfan is connected with pole water elevator pump 8, pole water tank 11 and pole water intake pump 14 in turn; 3rd outfan is connected with fresh water elevator pump 9, fresh water tanks 12 and fresh water circulating pump 15 in turn; The electric drive film device 17 that described dense water-circulating pump 13, pole water intake pump 14 control with commutator 16 with the outfan of fresh water circulating pump 15 is connected; Fresh water, by concentrate recirculation to dense water tank 10, is back to fresh water tanks 12 by the outfan of electric drive film device 17, and pole water is discharged B; The outfan of described fresh water tanks 12 is connected with potable water tank 19 by absorbent charcoal adsorber 18, and potable water tank 19 outer end is provided with drinking water faucet 20.
The micro-filtration membrane aperture of micro-filtration 3 is 0.02-10 ��m.
Absorbent charcoal material granularity in absorbent charcoal adsorber 18 is 4-30 order, and material adopts bamboo material, and packed density is 0.50-0.65g/mL.
Equipment pipeline is provided with electromagnetic valve.
Equipment adopts PLC to control.
Adopting the desalination process of embodiment 1 equipment, step is as follows:
(1) in sea water storage tank 1, salinity is that the sea water of 32950mg/L enters in micro-filtration 3 through seawater lift pump 2, keeps water intake velocity at 250L/h, and the time of staying is 15min, delivery turbidity laggard less than 0.1NTU enter ultra-filtration membrane device 4; Now the salinity of sea water is 31940mg/L, keeps water intake velocity at 200L/h, time of staying 15min;
(2) process through ultra-filtration membrane device 4, detect antibacterial and the E. CoIi content of water outlet place, it is judged that whether effluent quality meets the electrodialysis influent quality requirement set; It is unsatisfactory for setting water quality requirement and then repeats step (2), meet setting water quality requirement and then carry out step (3);
(3) dense water elevator pump 7, pole water elevator pump 8 and fresh water elevator pump 9 power are controlled, the outfan processing water in first water tank 6 is each led in dense water tank 10, fresh water tanks 12 and pole water tank 11, makes the flow of dense water tank 10, fresh water tanks 12 and pole water tank 11 at 60L/h;
(4) electric current density regulating and controlling commutator 16 is 25mA/cm2, dense water-circulating pump 13 by the dense water in dense water tank 10, pole water intake pump 14 by the pole water in pole water tank 11 and fresh water circulating pump 15 by the freshwater input electric drive film device 17 in fresh water tanks 12; Make it after electric drive film device 17 processes, by concentrate recirculation to dense water tank 10, fresh water is back to fresh water tanks 12, by the pole water discharge B of output; Control water outlet salinity rear entrance absorbent charcoal adsorber 18 within 400mg/L of fresh water tanks 12; The salt rejection rate of step (4) is 98.8%.
(5) absorbent charcoal adsorber 18 controls the salinity of water outlet place within 400mg/L, passes in potable water tank 19, controls to banish use by external drinking water faucet 20.
Operation principle: sea water from sea water storage tank 1 by elevator pump 2 through micro-filtration 3, the particle diameter granule more than micro-filtration membrane aperture and supramolecular material are trapped on face, it is prevented that bigger material affects next step ultrafiltration effect; Being entered in ultra-filtration membrane device 4 by the water of micro-filtration 3, the colloidal substance in stock solution, macromolecular substances, granule, antibacterial, virus and protozoacide etc. are retained, the dense water of ultrafiltration directly discharges, and ultrafiltration is produced water and entered the first water tank 6; Ultra-filtration membrane device 4 is carried out by the water in the first water tank 6 in part through backwash water pump 5, dense water tank 10, pole water tank 11 and fresh water tanks 12 is respectively enterd in part through dense water elevator pump 7, pole water elevator pump 8 and fresh water elevator pump 9, wherein, water in dense water tank 10, pole water tank 11 and fresh water tanks 12 is directly entered electric drive membrane stack, electric drive film in heap film is homogeneous ion-exchange membrane, electrode adopts high current density electrode, being powered by commutator 16, electric drive film membrane stack isolates fresh water, dense water and pole water; Dense water, fresh water are recycled into dense water tank 10 and fresh water tanks 12 respectively, the dense water of part directly discharges from dense water tank 10, pole water directly discharges from electric drive film membrane stack, fresh water is entered absorbent charcoal adsorber 18 by fresh water tanks 12, enter potable water tank 19 by activated carbon, directly can be drunk by drinking water spigot.
Wherein, ultrafilter membrane adopts material to be the high pollution-resistant membrane of Kynoar, can effectively prevent antibacterial, the delay of microorganism is grown, and can retain the float in sea water, algae and noxious bacteria etc.Water transport coefficient >=the 115L/m of film2H 0.1MPa, there is higher water flux, there is good fracture strength and extension at break, use procedure not easily occurs fracture of wire phenomenon, there is the performances such as good acid and alkali-resistance, organic solvent-resistant, grease resistance, light aging resisting, multiple method therefore can be used repeatedly to clean, to remove pollutant, recover membrane flux, increase the service life. The electric drive film that this utility model adopts is homogeneous ion-exchange membrane, and producing water ratio and salt rejection rate are stable, the features such as frequently pole-reversing electroosmosis system also has automaticity height, remarkable in economical benefits.
The advantage of this equipment: can keep high current efficiency in desalination, concentration, separation, significantly improves selectivity and the effectiveness of membrane separation technique, decreases the concentration diffusion of electrical leakage quantity and film, substantially increases current efficiency. The total salt rejection rate of system is more than 98.8%, and energy consumption is about 7kWh/t water, it is simple to industrial popularization and application.
Below this utility model is described in detail, the above, be only the preferred embodiment of this utility model, when not limiting this utility model practical range, namely all done impartial change according to the application scope and modified, all should still be belonged in this utility model covering scope.

Claims (6)

1. an electric drive film desalinization integrated equipment, this equipment includes sea water storage tank, it is characterised in that: the outfan of sea water storage tank is connected with seawater lift pump, micro-filtration, ultra-filtration membrane device, backwash water pump and the first water tank in turn; Dense for ultrafiltration water is directly discharged by the outfan of ultra-filtration membrane device, and ultrafiltration is produced water and is directly entered the first water tank; Described first water tank is provided with No. three outfans, and the first outfan is connected with dense water elevator pump, dense water tank and dense water-circulating pump in turn; Dense for ultrafiltration water is directly discharged by the outfan of dense water tank; Second outfan is connected with pole water elevator pump, pole water tank and pole water intake pump in turn; 3rd outfan is connected with fresh water elevator pump, fresh water tanks and fresh water circulating pump in turn; The electric drive film device that described dense water-circulating pump, pole water intake pump control with commutator with the outfan of fresh water circulating pump is connected; Fresh water, by concentrate recirculation to dense water tank, is back to fresh water tanks, is expelled directly out by the pole water of output by the outfan of electric drive film device; The outfan of described fresh water tanks is connected with potable water tank by absorbent charcoal adsorber, and potable water tank outer end is provided with drinking water faucet.
2. a kind of electric drive film desalinization integrated equipment according to claim 1, it is characterised in that: the micro-filtration membrane aperture of described micro-filtration is 0.02-10 ��m.
3. a kind of electric drive film desalinization integrated equipment according to claim 1, it is characterised in that: the ultrafilter membrane of described ultra-filtration membrane device is Kynoar material, surface aggregate anti-pollution layer, and ultrafilter membrane aperture is 0.01 ��m.
4. a kind of electric drive film desalinization integrated equipment according to claim 1, it is characterised in that: the absorbent charcoal material granularity in described absorbent charcoal adsorber is 4-30 order, and material adopts bamboo material, and packed density is 0.50-0.65g/mL.
5. a kind of electric drive film desalinization integrated equipment according to claim 1, it is characterised in that: described equipment pipeline is provided with electromagnetic valve.
6. a kind of electric drive film desalinization integrated equipment according to claim 1, it is characterised in that: described equipment adopts PLC to control.
CN201521019326.5U 2015-12-09 2015-12-09 Electrically -driven membrane seawater desalination integrated equipment Expired - Fee Related CN205295039U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521019326.5U CN205295039U (en) 2015-12-09 2015-12-09 Electrically -driven membrane seawater desalination integrated equipment

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Application Number Priority Date Filing Date Title
CN201521019326.5U CN205295039U (en) 2015-12-09 2015-12-09 Electrically -driven membrane seawater desalination integrated equipment

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106145416A (en) * 2016-08-12 2016-11-23 何颖 A kind of seawater comprehensive utilizing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106145416A (en) * 2016-08-12 2016-11-23 何颖 A kind of seawater comprehensive utilizing method

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160608

Termination date: 20161209

CF01 Termination of patent right due to non-payment of annual fee