CN103395915A - Work flow of sea water desalting equipment with RO (reverse osmosis) membrane - Google Patents
Work flow of sea water desalting equipment with RO (reverse osmosis) membrane Download PDFInfo
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- CN103395915A CN103395915A CN2013103521716A CN201310352171A CN103395915A CN 103395915 A CN103395915 A CN 103395915A CN 2013103521716 A CN2013103521716 A CN 2013103521716A CN 201310352171 A CN201310352171 A CN 201310352171A CN 103395915 A CN103395915 A CN 103395915A
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- China
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- water
- seawater
- sea water
- reverse osmosis
- flow
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to a work flow of sea water desalting equipment with an RO (reverse osmosis) membrane. At present, sea water desalting is commonly performed in a one-stage processing mode, the fresh water recovery rate is extremely low, and the phenomena of high energy consumption and low productivity of the equipment exist. The method provided by the invention comprises the following steps: adding NaCLO into sea water flowing into a sand settling pool (1), filtering through an impurity filter (2), pumping the sea water to an adjusting device by a water pump (3) along a water inlet pipe, and enabling the sea water to flow from the adjusting device to a water collection tank (4), wherein at this moment, the sea water flows through an RO membrane unit; pumping the sea water from the water collection tank into a chemical pool (5) by the water pump (3), and pumping the sea water in the chemical pool to an RO membrane tank (7) by a high-pressure pump (6) to produce waste water and fresh water, wherein at this moment, the waste water flows to a waste water treatment device through an energy recovery turbine (8), and the fresh water flows to a fresh water tank (9); and adding NaCLO in the process that the fresh water in the fresh water tank flows through a pipeline, so that the fresh water and underground water constitute pure water finally. The invention is used for sea water desalting or saline water desalting.
Description
Technical field:
The present invention relates to a kind of sea water desalting equipment workflow of the RO of having film.
Background technology:
Seawater cleaning at present mostly is one section processing mode, fresh-water recovery rate is extremely low, the equipment energy consumptions such as the water pump that each program of whole sea water desalting equipment relates to, filter, Oil scraper, high-pressure pump are large, the resulting fresh water amount of the production chain of high energy consumption is extremely undesirable like this, have that equipment power consumption is high, the low phenomenon of production capacity, can't meet the fresh water of life and production use, affect people's quality of life.
Summary of the invention:
The sea water desalting equipment workflow that the purpose of this invention is to provide a kind of RO of having film.
Above-mentioned purpose realizes by following technical scheme:
A kind of sea water desalting equipment workflow with RO film, add NaCLO in the seawater that flows into settling pit, by water pump, seawater is evacuated to setting device along water inlet pipe after the contaminant filter machine filters, and seawater flow to header tank from described setting device; The seawater this moment reverse osmosis membrane unit of flowing through, water pump is evacuated to seawater in the medicine pond from described header tank, high-pressure pump produces waste water and fresh water after the seawater in the medicine pond is evacuated to the reverse osmosis membrane case, this moment waste water through energy recovery turbine flow to wastewater treatment equipment and freshet to fresh-water tank, freshet in described fresh-water tank adds NaCLO in the pipeline process, form pure water finally together with underground water.
Described sea water desalting equipment workflow with RO film, seawater is evacuated in the setting device process along described water inlet pipe, and described water inlet pipe setting adds medicine box, and described adding in medicine box, have FeCL
3
, described setting device comprises the second strainer that is connected with the first strainer, and described water pump flow to the second strainer after seawater being evacuated to the first strainer of bar setting device, and this moment, seawater flow to described header tank by described the second strainer.
Described sea water desalting equipment workflow with RO film, flow through and add medicine box before the described dosing tank of seawater inflow, adds in medicine box and have NaHSO
3
, H
2
SO
4
, seawater and NaHSO
3
, H
2
SO
4
Flow in described medicine pond after mixing.
Described sea water desalting equipment workflow with RO film, the waste water that described permeable membrane case produces flow to drain box through pipeline under the dynamic action of energy recovery turbine, the wastewater streams that while the first strainer obtains is through concentration basin, secondary dilution case, and last wastewater streams to dehydration equipment is discharged.
Described sea water desalting equipment workflow with RO film, described energy recovery turbine and high-pressure pump are controlled by same power supply, and described energy recovery turbine is connected with the reverse osmosis membrane case; Reverse osmosis membrane in described reverse osmosis membrane case is selected helix poly amides reverse osmosis membrane.
Beneficial effect:
The extraction mode of design for seawater of the present invention is, under the deep water of 100 meters, distance seashore, drinking-water pipe is set, by setting device and the desalination process in two stages of reverse osmosis unit, the desalination process that enters reverse osmosis membrane after seawater after high-pressure pump is filtered setting device boosts, make fresh-water recovery rate rise to 60% of the reverse osmosis membrane stage from 40% of setting device, reverse osmosis membrane case of the present invention RO film used is the tired reverse osmosis membrane of spiral type polymeric amide, the condensed water of generation is adopted in water spread discharging modes.Suppose the about 9000m of floor area of building of a desalination water factory
2
, factory building is four layers on the ground of B1s, utilizes the flow process of this sea water desaltination can make fresh-water recovery rate reach 60%; Compare with desalination techniques in the past, the treatment stage that this technique that desalinizes seawater for twice having water withdrawal before desalination, desalination, scale is all brought up to 1.5 times than old technology, meet the fresh water demand of social life, stronger with enlarge industrial capacity, therefore in the situation that the desalination effect is identical, the desalination process that the present invention relates to can reduce production costs greatly.
Description of drawings:
Accompanying drawing 1 is sea water desaltination schema of the present invention.
Embodiment:
Embodiment 1:
A kind of sea water desalting equipment workflow with RO film, add NaCLO in the seawater that flows into settling pit 1, by water pump 3, seawater is evacuated to setting device along water inlet pipe after contaminant filter machine 2 filters, and seawater flow to header tank 4 from described setting device; The seawater this moment reverse osmosis membrane unit of flowing through, water pump 3 is evacuated to seawater in medicine pond 5 from described header tank, high-pressure pump 6 is evacuated to the rear generation waste water of reverse osmosis membrane case 7 and fresh water with the seawater in the medicine pond, this moment waste water through energy recovery turbine 8 flow to wastewater treatment equipment and freshet to fresh-water tank 9, freshet in described fresh-water tank adds NaCLO in the pipeline process, form pure water finally together with underground water.
Embodiment 2:
The described sea water desalting equipment workflow with RO film of embodiment 1, seawater is evacuated in the setting device process along described water inlet pipe, and described water inlet pipe setting adds medicine box 10, and described adding in medicine box, have FeCL
3
, described setting device comprises the second strainer 12 that is connected with the first strainer 11, and described water pump flow to the second strainer after seawater being evacuated to the first strainer of bar setting device, and this moment, seawater flow to described header tank by described the second strainer.
Embodiment 3:
The described sea water desalting equipment workflow with RO film of embodiment 1 or 2, flow through and add medicine box 10 before the described dosing tank of seawater inflow, adds in medicine box and have NaHSO
3
, H
2
SO
4
, seawater and NaHSO
3
, H
2
SO
4
Flow in described medicine pond after mixing.
Embodiment 4:
The described sea water desalting equipment workflow with RO film of embodiment 1 or 2, the waste water that described permeable membrane case produces flow to drain box 13 through pipeline under the dynamic action of energy recovery turbine, the wastewater streams that while the first strainer obtains is through concentration basin 14, secondary dilution case 15, and last wastewater streams to dehydration equipment 16 is discharged.
Embodiment 5:
The described sea water desalting equipment workflow with RO film of embodiment 1 or 2, described energy recovery turbine and high-pressure pump are controlled by same power supply, described energy recovery turbine is connected with the reverse osmosis membrane case, reclaim the energy that the reverse osmosis membrane case is produced by the high-pressure pump pressurization, the effect with energy efficient; Reverse osmosis membrane in described reverse osmosis membrane case is selected helix poly amides reverse osmosis membrane.
Claims (5)
1. sea water desalting equipment workflow with RO film, it is characterized in that: add NaCLO in the seawater that flows into settling pit, by water pump, seawater is evacuated to setting device along water inlet pipe after the contaminant filter machine filters, seawater flow to header tank from described setting device; The seawater this moment reverse osmosis membrane unit of flowing through, water pump is evacuated to seawater in the medicine pond from described header tank, high-pressure pump produces waste water and fresh water after the seawater in the medicine pond is evacuated to the reverse osmosis membrane case, this moment waste water through energy recovery turbine flow to wastewater treatment equipment and freshet to fresh-water tank, freshet in described fresh-water tank adds NaCLO in the pipeline process, form pure water finally together with underground water.
2. the sea water desalting equipment workflow with RO film according to claim 1, it is characterized in that: seawater is evacuated in the setting device process along described water inlet pipe, and described water inlet pipe setting adds medicine box, and described adding in medicine box, have FeCL
3, described setting device comprises the second strainer that is connected with the first strainer, and described water pump flow to the second strainer after seawater being evacuated to the first strainer of bar setting device, and this moment, seawater flow to described header tank by described the second strainer.
3. the sea water desalting equipment workflow with RO film according to claim 1 and 2, is characterized in that: flow through and add medicine box before the described dosing tank of seawater inflow, add in medicine box and have NaHSO
3, H
2SO
4, seawater and NaHSO
3, H
2SO
4Flow in described medicine pond after mixing.
4. the sea water desalting equipment workflow with RO film according to claim 1 and 2, it is characterized in that: the waste water that described permeable membrane case produces flow to drain box through pipeline under the dynamic action of energy recovery turbine, the wastewater streams that while the first strainer obtains is through concentration basin, secondary dilution case, and last wastewater streams to dehydration equipment is discharged.
5. the sea water desalting equipment workflow with RO film according to claim 1 and 2 is characterized in that: described energy recovery turbine and high-pressure pump are controlled by same power supply, and described energy recovery turbine is connected with the reverse osmosis membrane case; Reverse osmosis membrane in described reverse osmosis membrane case is selected helix poly amides reverse osmosis membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103521716A CN103395915A (en) | 2013-08-14 | 2013-08-14 | Work flow of sea water desalting equipment with RO (reverse osmosis) membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103521716A CN103395915A (en) | 2013-08-14 | 2013-08-14 | Work flow of sea water desalting equipment with RO (reverse osmosis) membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103395915A true CN103395915A (en) | 2013-11-20 |
Family
ID=49559711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103521716A Withdrawn CN103395915A (en) | 2013-08-14 | 2013-08-14 | Work flow of sea water desalting equipment with RO (reverse osmosis) membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103395915A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105883975A (en) * | 2014-12-23 | 2016-08-24 | 孙华信 | Method for preparing freshwater by filtering seawater by means of seabed |
| CN109850999A (en) * | 2019-04-23 | 2019-06-07 | 福建普泰科水处理科技有限公司 | A kind of purging method for seawater desalination system |
| CN111093809A (en) * | 2017-08-11 | 2020-05-01 | 罗伯特·B·伊凡斯 | Desalination system and method |
-
2013
- 2013-08-14 CN CN2013103521716A patent/CN103395915A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105883975A (en) * | 2014-12-23 | 2016-08-24 | 孙华信 | Method for preparing freshwater by filtering seawater by means of seabed |
| CN111093809A (en) * | 2017-08-11 | 2020-05-01 | 罗伯特·B·伊凡斯 | Desalination system and method |
| CN109850999A (en) * | 2019-04-23 | 2019-06-07 | 福建普泰科水处理科技有限公司 | A kind of purging method for seawater desalination system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20131120 |