CN204058116U - A kind of seawater desalination system - Google Patents
A kind of seawater desalination system Download PDFInfo
- Publication number
- CN204058116U CN204058116U CN201420373105.7U CN201420373105U CN204058116U CN 204058116 U CN204058116 U CN 204058116U CN 201420373105 U CN201420373105 U CN 201420373105U CN 204058116 U CN204058116 U CN 204058116U
- Authority
- CN
- China
- Prior art keywords
- quartz sand
- filtration unit
- processing tank
- layer
- seawater desalination
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- 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
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The utility model relates to technical field of sea water desalination equipment, be specifically related to a kind of seawater desalination system, comprise security personnel's filtration unit, the import of described security personnel's filtration unit connects pretreatment unit, the outlet pressure-exchange formula energy recycle device of described security personnel's filtration unit, is connected to reverse osmosis membrane apparatus by topping-up pump; Described pretreatment unit comprises the first processing tank, filtration unit and the second processing tank that connect successively and the pre-treatment film system be connected between described second processing tank and described security personnel's filtration unit; The water inlet of described first processing tank is provided with chemical processing agent and throws in part, and described chemical processing agent comprises sterilant and flocculation agent; Described filtration unit comprises activated carbon filter layer and quartz sand filtration layer, and the water inlet of described second processing tank is provided with reductive agent and throws in part and Scale inhibitors input part.The utility model desalination efficiency is high, and water outlet purity is high, water safety is good, energy proterctive equipment, in the work-ing life of extension device, reduces desalinating cost.
Description
Technical field
The utility model relates to technical field of sea water desalination equipment, is specifically related to a kind of seawater desalination system.
Background technology
Desalination technology has; Method of evaporation, crystallisation by cooling method, reverse osmosis method, ionization method and electroosmose process.In these methods, by the desalination water produced purity from high to low: method of evaporation, crystallisation by cooling method, ionization method and electroosmose process, reverse osmosis method.But the energy that method of evaporation, crystallisation by cooling method and electroosmose process produce fresh water consumption is more, and cost is higher.The energy that reverse osmosis method and ionization method produce fresh water consumption is less, and cost is lower.And ionization method sea water desaltination, can only small-scale sea water desaltination be carried out.At present, Technical comparing technology that is ripe, that be widely used only has method of evaporation and reverse osmosis method.The General Principle of reverse osmosis method sea water desaltination is: first with topping-up pump, seawater is pressed onto in the closed semi-permeable membranes core in one end, fresh water is through the fresh water district entering fresh water generation tank after semi-permeable membranes; Salt and other macromolecular substance then stay semi-permeable membranes near surface, form dense salt solution; Some molecules of salt or other macromolecular substance then get lodged on the longan of semi-permeable membranes.The Chinese patent being CN202272800 as the patent No. discloses a kind of sea water desalinating plant on June 13rd, 2012, is made up of coarse filter, flocculation basin, Filtration Adsorption pond, filtration layer of sand, activated carbon filter layer, SC water treatment machine and RO reverse osmosis filter; Can reach the degree of depth to be separated, 98% salinity in water is removed, and water outlet directly reaches drinking water standard.Have cost low, consume energy low advantage.But also there is its defect: although most impurity that the water after layer of sand filtration, charcoal absorption can be gone out wherein, but still some particles can be remained, directly enter SC water treatment machine and RO reverse osmosis filter, can result in blockage to SC water treatment machine and RO reverse osmosis filter, even have a strong impact on its function, reduce the work-ing life of device.
Utility model content
In order to solve the defect that above-mentioned sea water desalinating plant exists, the utility model provides a kind of water outlet purity high, proterctive equipment, the seawater desalination system of long service life.
In order to achieve the above object, the utility model adopts following technical scheme: a kind of seawater desalination system, comprise security personnel's filtration unit, the import of described security personnel's filtration unit connects pretreatment unit, the outlet pressure-exchange formula energy recycle device of described security personnel's filtration unit, is connected to reverse osmosis membrane apparatus by topping-up pump; Described pretreatment unit comprises the first processing tank, filtration unit and the second processing tank that connect successively and the pre-treatment film system be connected between described second processing tank and described security personnel's filtration unit; The water inlet of described first processing tank is provided with chemical processing agent and throws in part, and described chemical processing agent comprises sterilant and flocculation agent; Described filtration unit comprises activated carbon filter layer and quartz sand filtration layer, described quartz sand filtration layer is provided with the first quartz sand layer, the second quartz sand layer and the 3rd quartz sand layer from top to bottom successively, and the particle diameter of quartz sand in the first described quartz sand layer is less than the particle diameter of the quartz sand in the second quartz sand layer, the particle diameter of the quartz sand in the second described quartz sand layer is less than the particle diameter of the quartz sand in the 3rd quartz sand layer; The water inlet of described second processing tank is provided with reductive agent and throws in part and Scale inhibitors input part.
By this technical scheme, water after filtration treatment is again by pre-treatment film, can by the impurity that do not filter out through membrane filtration, further increasing intensity filter, ensure the impurities in water entered in follow up device to the full extent, especially easily cause the impurity of blocking few, one improves reverse osmosis efficiency, improves desalination purity; Two also protect follow-up equipment configuration, can reduce the wash number of device, improve its work-ing life, reduce cleaning charge and use.Recycling more rationally three layers of exquisiter different size quartz sand guarantees pre-treatment effluent quality, to meet feed water by reverse osmosis requirement, thus improves the reverse osmosis system rate of recovery and reverse osmosis membrane work-ing life.
As preferably, described pre-treatment film system is composed in parallel by least two pre-treatment film devices, and described pre-treatment film device is nano filter membrance device.
" fenestra " of nanofiltration membrane is between ultra-filtration membrane and reverse osmosis membrane, the general bear electricity in surface of film, be characterized in molecular weight cut-off being the organism of " 200-1000 ", and to divalence and polyvalent ion, there is very high rejection, the most of hardness in seawater, turbidity material, larger molecular organics can be removed and be partly dissolved salt, reduce seawater fouling, the trend of pollution and the osmotic pressure of seawater, thus Water Sproading rate can be improved by a relatively large margin, reduce the ton water consumption of follow-up desalination process, improve utilization ratio and the sea water desaltination cost of existing apparatus.
As preferably, described cartridge filter is in series by the accurate filter of at least 2 different accuracies, and according to the different designs by water quality, can raise the efficiency, the precision of the accurate filter of general inlet end is lower.
As preferably, the pressurizing device be also provided with between described security personnel's filtration unit and described reverse osmosis membrane apparatus.
As preferably, described pressurizing device is high-pressure pump, and described high-pressure pump is high pressure plunger pump.
As preferably, described filtration unit comprises three layers, is activated carbon filter layer from top to bottom, quartz sand filtration layer and activated carbon filter layer.
As preferably, be equipped with stirring parts in described first processing tank and the second processing tank, described stirring parts is provided with sheet paddle, and described paddle is provided with engraves hole.Stir throwing in the material of entering, mix, being provided with the paddle engraving hole can improve stirring efficiency, can not cause excessive fluctuation again to the water in processing tank.
As preferably, in described reverse osmosis membrane apparatus, be provided with agitator, the spiral helicine blade of described agitator is equipped with hairbrush.
Because fresh water presses through and supplements through just having seawater after semi-permeable membranes and concentrated seawater is pressed to semi-permeable membranes surface, make the concentrated seawater on close semi-permeable membranes surface cannot to external diffusion like this.Concentration near semi-permeable membranes sea surface is more and more higher, and it seriously hinders fresh water through semi-permeable membranes; Part molecules of salt or other macromolecular substance is also had then to get lodged on the longan of semi-permeable membranes, the longan of staying semi-permeable membranes will block semi-permeable membranes, hairbrush on the spiral blade of agitator, to remain near semi-permeable membranes or the salt of blocking semi-permeable membranes longan or other macromolecular substance clear, improves the ability of reverse osmosis.
As preferably, described reverse osmosis membrane apparatus is communicated with rising pipe, and described rising pipe is communicated with fresh water water tank.
As preferably, be provided with sanitizer between described reverse osmosis membrane apparatus and described fresh water water tank, described sanitizer is ultraviolet sterilizer.For the water outlet that purity requirement is high, sanitizer is set, is conducive to increasing water quality, ensure water safety.
By implementing technique scheme, the utility model has following beneficial effect: the utility model desalination efficiency is high, and water outlet purity is high, water safety is good, energy proterctive equipment, in the work-ing life of extension device, reduces desalinating cost.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model one example structure schematic diagram;
Accompanying drawing 2 is another example structure schematic diagram of the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1:
As shown in Figure 1, seawater desalination system comprises seawater and collects the first processing tank 21 that well 10 and seawater pass through successively, filtration unit 22, second processing tank 23, the pre-treatment film system 5 composed in parallel by the nano filter membrance device 51 of two ESNA1 models, the security personnel's filtration unit 1 be in series by the accurate filter 11 of two different accuracies, CPX pressure-exchange formula energy recycle device 9, topping-up pump 3, reverse osmosis membrane apparatus 4, ultraviolet-sterilization part 8 and fresh water water tank 7.Be provided with at the feed-water end of the first processing tank 21 chemical processing agent being communicated with its water inlet pipe and throw in part 211, chemical processing agent comprises sterilant and flocculation agent; Be provided with at the feed-water end of the second processing tank 23 reductive agent being communicated with its water inlet pipe and throw in part 231 and Scale inhibitors input part 232, for water quality reduction, pH adjustment etc.Wherein, filtration unit 22 comprises three layers, for activated carbon filter layer 221 from top to bottom, quartz sand filtration layer and activated carbon filter layer 221, quartz sand filtration layer is provided with the first quartz sand layer 222, second quartz sand layer 223 and the 3rd quartz sand layer 224 from top to bottom successively, and the particle diameter of quartz sand in the first quartz sand layer 222 is less than the particle diameter of the quartz sand in the second quartz sand layer 223, the particle diameter of the quartz sand in the second quartz sand layer 223 is less than the particle diameter of the quartz sand in the 3rd quartz sand layer 224.In the first processing tank (21) and the second processing tank 23, be equipped with stirring parts 212, stirring parts 212, by driven by motor, which is provided with the paddle of sheet, and paddle is provided with engraves hole.Be provided with by the helical stirrer 41 of driven by motor in reverse osmosis membrane apparatus 4, the spiral helicine blade of agitator 41 is equipped with hairbrush, clear the salt or other macromolecular substance that remain near semi-permeable membranes or block semi-permeable membranes longan, improve the ability of reverse osmosis.
Embodiment 2:
With embodiment 1, ensuring public security being communicated with by high pressure plunger pump 6 between filtration unit 1 and reverse osmosis membrane apparatus 4 with the difference of embodiment 1, as shown in Figure 2, low pressure seawater after security personnel's filtration unit 1 filters, one tunnel enters high pressure plunger pump pressurization, another road enters pressure-exchange formula energy recycle device 9 and boosts, and the seawater after boosting is mixed into reverse osmosis membrane apparatus 4 with high pressure plunger pump 6 water outlet after topping-up pump 3 pressurizes.The pressure of equilibrium pressure exchange type energy recovery device 9, while improving desalination efficiency, reduces production cost.
Claims (10)
1. a seawater desalination system, it is characterized in that: comprise security personnel's filtration unit (1), the import of described security personnel's filtration unit (1) connects pretreatment unit, outlet pressure-exchange formula energy recycle device (9) of described security personnel's filtration unit (1), is connected to reverse osmosis membrane apparatus (4) by topping-up pump (3); Described pretreatment unit comprises the first processing tank (21), filtration unit (22) and the second processing tank (23) that connect successively and the pre-treatment film system (5) be connected between described second processing tank (23) and described security personnel's filtration unit (1); The water inlet of described first processing tank (21) is provided with chemical processing agent and throws in part (211), and described filtration unit (22) comprises activated carbon filter layer (221) and quartz sand filtration layer; Described quartz sand filtration layer is provided with the first quartz sand layer (222), the second quartz sand layer (223) and the 3rd quartz sand layer (224) from top to bottom successively, and the particle diameter of quartz sand in described the first quartz sand layer (222) is less than the particle diameter of the quartz sand in the second quartz sand layer (223), the particle diameter of the quartz sand in described the second quartz sand layer (223) is less than the particle diameter of the quartz sand in the 3rd quartz sand layer (224); The water inlet of described second processing tank (23) is provided with reductive agent and throws in part (231) and Scale inhibitors input part (232).
2. a kind of seawater desalination system according to claim 1, it is characterized in that: described pre-treatment film system (5) is composed in parallel by least two pre-treatment film devices (51), described pre-treatment film device (51) is nano filter membrance device.
3. a kind of seawater desalination system according to claim 2, is characterized in that: described cartridge filter (1) is in series by the accurate filter (11) of at least 2 different accuracies.
4. a kind of seawater desalination system according to claim 1, is characterized in that: also comprise the pressurizing device (6) be connected between described security personnel's filtration unit (1) and described reverse osmosis membrane apparatus (4).
5. a kind of seawater desalination system according to claim 4, it is characterized in that: described pressurizing device (6) is high-pressure pump, described high-pressure pump is high pressure plunger pump.
6. a kind of seawater desalination system according to claim 1, it is characterized in that: described filtration unit (22) comprises three layers, is activated carbon filter layer (221) from top to bottom, quartz sand filtration layer and activated carbon filter layer (221).
7. a kind of seawater desalination system according to claim 1, it is characterized in that: in described first processing tank (21) and the second processing tank (23), be equipped with stirring parts (212), described stirring parts (212) is provided with sheet paddle, and described paddle is provided with engraves hole.
8. a kind of seawater desalination system according to claim 1, is characterized in that: be provided with helical stirrer (41) in described reverse osmosis membrane apparatus (4), the spiral helicine blade of described agitator (41) is equipped with hairbrush.
9. a kind of seawater desalination system according to claim 8, is characterized in that: described reverse osmosis membrane apparatus (4) is communicated with fresh water water tank (7).
10. a kind of seawater desalination system according to claim 9, it is characterized in that: be provided with sanitizer (8) between described reverse osmosis membrane apparatus (4) and described fresh water water tank (7), described sanitizer (8) is ultraviolet sterilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420373105.7U CN204058116U (en) | 2014-07-08 | 2014-07-08 | A kind of seawater desalination system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420373105.7U CN204058116U (en) | 2014-07-08 | 2014-07-08 | A kind of seawater desalination system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204058116U true CN204058116U (en) | 2014-12-31 |
Family
ID=52199670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420373105.7U Expired - Lifetime CN204058116U (en) | 2014-07-08 | 2014-07-08 | A kind of seawater desalination system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204058116U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106186409A (en) * | 2016-08-31 | 2016-12-07 | 北京三清智库科技开发有限公司 | Varying duty adjusting means and seawater desalination system and method |
-
2014
- 2014-07-08 CN CN201420373105.7U patent/CN204058116U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106186409A (en) * | 2016-08-31 | 2016-12-07 | 北京三清智库科技开发有限公司 | Varying duty adjusting means and seawater desalination system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105540967B (en) | A kind of organic wastewater minimizing, recycling processing method and processing system | |
| CN203269703U (en) | System for producing fresh water and salt production raw material by desalinating seawater in novel membrane method | |
| CN103145219B (en) | Method and device for recovering carbon source in urban sewage | |
| CN103936202B (en) | A kind of method for desalting brackish water and device thereof | |
| CN101798150B (en) | Treatment method of wastewater with high salt content and treatment device thereof | |
| CN108383315B (en) | Multistage electrically driven ionic membrane's waste water recovery device | |
| CN104276711A (en) | Reverse osmosis membrane treatment process for recycling industrial sewage and realizing zero release | |
| CN103663759B (en) | A High Recovery Rate Salt Wastewater Membrane Combined Separation Process and Its Application | |
| CN102249459A (en) | System for desalinating sea water | |
| CN102807296A (en) | Process for deeply treating and recycling high-salinity industrial waste water | |
| CN102690003B (en) | Device and method for performing advanced treatment on citric acid waste water through dual membrane process | |
| CN105084587A (en) | Treatment method and equipment of high-salt waste water | |
| CN101172724A (en) | Method for processing sewage from industrial cycle water | |
| CN101462804A (en) | Electromembrane seawater desalination method and complete set of equipment | |
| CN101186407A (en) | System for desalinizing sea water by jet flow cavitation technique | |
| CN103408179A (en) | Production method for desalting seawater by hot film coupling | |
| Singh | Analysis of energy usage at membrane water treatment plants | |
| CN104445714B (en) | The peace and quiet waste water high power reuse technology of coal chemical industry and its special purpose device | |
| Bujakowski et al. | Geothermal water treatment–preliminary experiences from Poland with a global overview of membrane and hybrid desalination technologies | |
| CN102701326A (en) | Seawater desalinizing technology deeply treated by reverse osmosis membrane after mixing wastewater with seawater | |
| CN202865053U (en) | Processing device for wastewater form circulating cooling water and reverse osmosis concentrated water | |
| CN209081494U (en) | A kind of reverse osmosis concentrated water recovery device | |
| CN108328836B (en) | Water inlet control system based on high-salt-content wastewater reduction process | |
| CN106746130A (en) | A kind of high-salt concentrated water zero-discharge treatment system and process | |
| CN102897947A (en) | Reverse osmosis (RO) desalting treatment method and treatment system with ultrahigh water recovery rate for waste water containing high sulfate radicals |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141231 |
|
| CX01 | Expiry of patent term |