CN203877944U - Multistage reverse osmosis membrane device for seawater desalination - Google Patents
Multistage reverse osmosis membrane device for seawater desalination Download PDFInfo
- Publication number
- CN203877944U CN203877944U CN201420318354.6U CN201420318354U CN203877944U CN 203877944 U CN203877944 U CN 203877944U CN 201420318354 U CN201420318354 U CN 201420318354U CN 203877944 U CN203877944 U CN 203877944U
- Authority
- CN
- China
- Prior art keywords
- reverse osmosis
- osmosis membrane
- water
- membrane group
- stage
- 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
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 97
- 239000012528 membrane Substances 0.000 title claims abstract description 88
- 239000013535 sea water Substances 0.000 title claims abstract description 25
- 238000010612 desalination reaction Methods 0.000 title abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 84
- 239000013505 freshwater Substances 0.000 claims abstract description 22
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 238000010992 reflux Methods 0.000 claims abstract description 7
- 230000008676 import Effects 0.000 description 3
- 230000003204 osmotic effect Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- -1 wherein Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- 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
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to a multistage reverse osmosis membrane device for seawater desalination. The multistage reverse osmosis membrane device for seawater desalination comprises a primary reverse osmosis membrane set and a secondary reverse osmosis membrane set, wherein a non-return valve capable of preventing reverse high-pressure reflux is arranged between a primary fresh water outlet of the primary reverse osmosis membrane set and a secondary raw water inlet of the secondary reverse osmosis membrane set; fresh water filtered by the primary reverse osmosis membrane set enters the secondary raw water inlet of the secondary reverse osmosis membrane set via the non-return valve; secondary fresh water filtered by the secondary reverse osmosis membrane set is led out via a secondary fresh water outlet; and residual concentrated water after secondary filtration is led out via a secondary concentrated water outlet. The non-return valve is utilized instead of the traditional water pump, thereby greatly saving the cost on the premise of achieving the same function of preventing reflux.
Description
Technical field
This novel field of sea water desalting technology that relates to, refers in particular to a kind of multistage reverse osmosis membrane apparatus that is applied to sea water desaltination.
Background technology
At present, in sea water desaltination field, conventionally can use reverse osmosis membrane group and obtain high-quality pure water, for seawater is carried out to repeatedly osmosis filtration, conventionally can adopt multistage reverse osmosis membrane group to be serially connected to realize repeatedly osmosis filtration and obtain high-quality pure water, because the feature of reverse osmosis membrane is need to import the seawater that pressure is greater than osmotic pressure could realize filtration, in order to prevent after first pressure pump is shut down, high pressure water in reverse osmosis membrane group below produces backflow and a upper reverse osmosis membrane is destroyed, existing design many and reverse osmosis membrane group is, at the original water inlet place of every one-level reverse osmosis membrane group, a pressure pump is installed, guarantee that every grade of reverse osmosis membrane group all has the destruction that water that enough pressure prevents rear first-stage reverse osmosis film group refluxes and causes upper level reverse osmosis membrane group to upper level under reverse pressure, although this hidden danger that this mode solves, but quantity and the cost of equipment have been increased undoubtedly, in view of this, how to improve existing design, when reducing equipment cost, also possessing the reverse osmosis of preventing refluxes to become and has problem to be solved.
Summary of the invention
This novel object is exactly a kind of multistage reverse osmosis membrane apparatus that is applied to sea water desaltination proposing for the weak point of above-mentioned situation.
For achieving the above object, this novel technical scheme is: a kind of multistage reverse osmosis membrane apparatus that is applied to sea water desaltination, include first step reverse osmosis membrane group and second stage reverse osmosis membrane group, each reverse osmosis membrane group all has original water inlet, dense water out and water outlet, after pressurizeing by high-pressure pump, seawater enters the first step original water inlet of first step reverse osmosis membrane group by pipeline, one-level fresh water after first step reverse osmosis module filters is derived by first step water outlet, after single filter, remaining dense water is discharged by the dense water out of the first step, between the first step water outlet of first step reverse osmosis membrane group and the second stage original water inlet of second stage reverse osmosis membrane group, be provided with and there is the check function valve that prevents that high back voltage from refluxing, fresh water after first step reverse osmosis membrane group is filtered enters the second stage original water inlet of second stage reverse osmosis membrane group after described check function valve, secondary fresh water after reverse osmosis module in the second stage filters is derived by second stage water outlet, after cascade filtration, remaining dense water is derived by the dense water out in the second stage.
Described check function valve is check valve.
Described check function valve is pilot operated directional control valve, and when in first step reverse osmosis membrane group, the pressure of water is less than setup pressure value, described pilot operated directional control valve is closed and cut-off loop; When in first step reverse osmosis membrane group, the pressure of water is more than or equal to setup pressure value, described pilot operated directional control valve conducting and connected loop.
Described check function valve is magnetic valve, the control end of magnetic valve is electrically connected to pressure switch conducting while making the hydraulic pressure of the first step original water inlet that records when pressure switch be more than or equal to setup pressure value with the pressure switch that is arranged on first step original water inlet, and the hydraulic pressure of the first step original water inlet recording when pressure switch pressure switch cut-off loop while being less than setup pressure value.
Described reverse osmosis membrane group is comprised of one or more reverse osmosis membranes.
Adopt after said structure, basis is novel to be prevented after shutdown by check function valve is installed between the reverse osmosis membrane group in two company's two-stages, high pressure water in rear first-stage reverse osmosis film is back in the reverse osmosis membrane of previous stage, so only, by increasing a valve, just substituted traditional water pump, when reaching identical function, greatly saved cost, in addition, this novel time duty valve can freely be selected as required by check valve, magnetic valve or pilot operated directional control valve, diversified reference is provided to element design and the buying of seawater desalination system; Have the novel second stage reverse osmosis membrane group of basis quantum of output to lack the high high quality tap water of matter, the low life fresh water of the energy large matter of quantum of output meets different needs simultaneously simultaneously again.
Accompanying drawing explanation
Fig. 1 is the structural representation of the reverse osmosis membrane embodiment mono-of this novel employing check valve;
Fig. 2 is the structural representation of the reverse osmosis membrane embodiment bis-of this novel employing pilot operated directional control valve;
Fig. 3 is the structural representation of the reverse osmosis membrane embodiment tri-of this novel employing magnetic valve.
Embodiment
Below in conjunction with accompanying drawing, this novel embodiment is described in further details.
As Figure 1-3, a kind of multistage reverse osmosis membrane apparatus that is applied to sea water desaltination, include first step reverse osmosis membrane group 10 and second stage reverse osmosis membrane group 20, each reverse osmosis membrane group all has original water inlet, dense water out and water outlet, seawater enters the first step original water inlet 11 of first step reverse osmosis membrane group 10 by pipeline after pressurizeing by high-pressure pump 30, one-level fresh water after first step reverse osmosis module 10 filters is derived by first step water outlet 12, after single filter, remaining dense water is discharged by the dense water out 13 of the first step, between the first step water outlet 11 of first step reverse osmosis membrane group 10 and the second stage original water inlet 21 of second stage reverse osmosis membrane group 20, be provided with and there is the check function valve that prevents that high back voltage from refluxing, fresh water after first step reverse osmosis membrane group 10 is filtered enters the second stage original water inlet 21 of second stage reverse osmosis membrane group 20 after described check function valve, secondary fresh water after second stage reverse osmosis module 20 filters is derived by second stage water outlet 22, after cascade filtration, remaining dense water is derived by the dense water out 23 in the second stage.
Described check function valve is check valve 41.
Described check function valve is pilot operated directional control valve 42, and when in first step reverse osmosis membrane group 10, the pressure of water is less than setup pressure value, described pilot operated directional control valve 42 is closed and cut-off loop; When in first step reverse osmosis membrane group 10, the pressure of water is more than or equal to setup pressure value, described pilot operated directional control valve 42 conductings and connected loop.
Described check function valve is magnetic valve 43, the control end of magnetic valve 43 is electrically connected to pressure switch 50 conductings while making the hydraulic pressure of the first step original water inlet 11 that records when pressure switch 50 be more than or equal to setup pressure value with the pressure switch 50 that is arranged on first step original water inlet 11, and the hydraulic pressure of the first step original water inlet 11 recording when pressure switch 50 pressure switch cut-off loop while being less than setup pressure value.
Described reverse osmosis membrane group 10 is joined and is formed by least two reverse osmosis membranes, wherein, seawater imports from the original water inlet of first reverse osmosis membrane 10a, fresh water after filtering is derived by first header, dense water enters second reverse osmosis membrane 10b, fresh water after filtering is derived by second header, and dense water continues to import to next reverse osmosis membrane or discharge; Each header is derived by described first step fresh water export mouth 12 after deriving fresh water interflow.
During use, seawater pressurizes by high-pressure pump 30, when the setting pressure of force value overpressure switch 60 is the osmotic pressure of reverse osmosis membrane, pressure switch 60 is opened, seawater enters the first original water inlet 11 of the first reverse osmosis membrane group 10, through osmosis filtration, the one-level fresh water after filtration is derived from the first water outlet 12 by header, and dense water is discharged by the first dense water out 13;
The one-level fresh water of deriving from the first water outlet 12 is check valve 41, stopping valve 42 or magnetic valve 43 through check function valve, the second original water inlet 21 that enters into second stage reverse osmosis membrane group 20 is proceeded osmosis filtration, secondary fresh water after filtration is derived from the second water outlet 22 by header, and residue fresh water is derived from the second dense water out 23.
When the accidents such as power failure occurs cause water pump to be shut down; water in first step reverse osmosis membrane group 10 is in low pressure; and water in second stage reverse osmosis membrane group 20 is in high pressure; because the effect of check function valve cannot be back in first step reverse osmosis membrane group 10 water in second stage reverse osmosis membrane group 20, go, guaranteed the safety of first step reverse osmosis membrane group 10.
Have, during this is novel, any reverse osmosis membrane group can be formed by connecting by one or more reverse osmosis membranes, so just can reach by the combination of a plurality of reverse osmosis membranes the object that lengthens reverse osmosis membrane group again.
As from the foregoing, basis is novel has substituted traditional water pump by design check function valve, greatly saved cost when preventing backflow functionality reaching identical, in addition, this novel time duty valve can freely be selected as required by check valve, magnetic valve or stopping valve, diversified reference is provided to element design and the buying of seawater desalination system; Have by original water inlet place setting pressure switch, the pressure that can guarantee water pump is greater than osmotic pressure and just can enters reverse osmosis membrane work again, has guaranteed that reverse osmosis membrane works all the time under operating pressure.
Claims (5)
1. a multistage reverse osmosis membrane apparatus that is applied to sea water desaltination, include first step reverse osmosis membrane group and second stage reverse osmosis membrane group, each reverse osmosis membrane group all has original water inlet, dense water out and water outlet, after pressurizeing by high-pressure pump, seawater enters the first step original water inlet of first step reverse osmosis membrane group by pipeline, one-level fresh water after first step reverse osmosis module filters is derived by first step water outlet, after single filter, remaining dense water is discharged by the dense water out of the first step, it is characterized in that: between the first step water outlet of first step reverse osmosis membrane group and the second stage original water inlet of second stage reverse osmosis membrane group, be provided with and there is the check function valve that prevents that high back voltage from refluxing, fresh water after first step reverse osmosis membrane group is filtered enters the second stage original water inlet of second stage reverse osmosis membrane group after described check function valve, secondary fresh water after reverse osmosis module in the second stage filters is derived by second stage water outlet, after cascade filtration, remaining dense water is derived by the dense water out in the second stage.
2. a kind of multistage reverse osmosis membrane apparatus that is applied to sea water desaltination according to claim 1, is characterized in that: described check function valve is check valve.
3. a kind of multistage reverse osmosis membrane apparatus that is applied to sea water desaltination according to claim 1, it is characterized in that: described check function valve is pilot operated directional control valve, when in first step reverse osmosis membrane group, the pressure of water is less than setup pressure value, described pilot operated directional control valve is closed and cut-off loop; When in first step reverse osmosis membrane group, the pressure of water is more than or equal to setup pressure value, described pilot operated directional control valve conducting and connected loop.
4. a kind of multistage reverse osmosis membrane apparatus that is applied to sea water desaltination according to claim 1, it is characterized in that: described check function valve is magnetic valve, the control end of magnetic valve is electrically connected to pressure switch conducting while making the hydraulic pressure of the first step original water inlet that records when pressure switch be more than or equal to setup pressure value with the pressure switch that is arranged on first step original water inlet, and the hydraulic pressure of the first step original water inlet recording when pressure switch pressure switch cut-off loop while being less than setup pressure value.
5. according to a kind of multistage reverse osmosis membrane apparatus that is applied to sea water desaltination described in any one of claim 1-4, it is characterized in that: described reverse osmosis membrane group is comprised of one or more reverse osmosis membranes.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420318354.6U CN203877944U (en) | 2014-06-06 | 2014-06-13 | Multistage reverse osmosis membrane device for seawater desalination |
| PCT/CN2015/081329 WO2015188776A1 (en) | 2014-06-06 | 2015-06-12 | Multi-stage reverse osmosis membrane device applied to sea water desalination |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420300545 | 2014-06-06 | ||
| CN201420300545.X | 2014-06-06 | ||
| CN201420318354.6U CN203877944U (en) | 2014-06-06 | 2014-06-13 | Multistage reverse osmosis membrane device for seawater desalination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203877944U true CN203877944U (en) | 2014-10-15 |
Family
ID=51678468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420318354.6U Expired - Lifetime CN203877944U (en) | 2014-06-06 | 2014-06-13 | Multistage reverse osmosis membrane device for seawater desalination |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203877944U (en) |
| WO (1) | WO2015188776A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015188776A1 (en) * | 2014-06-06 | 2015-12-17 | 王桂林 | Multi-stage reverse osmosis membrane device applied to sea water desalination |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107473414A (en) * | 2017-09-30 | 2017-12-15 | 董云珠 | A kind of multiple stage circulation purifier and multiple stage circulation water cleaning systems |
| CN111186924B (en) * | 2020-02-10 | 2024-04-26 | 青岛海洋地质研究所 | Reverse osmosis water making equipment capable of automatically adjusting temperature |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2009264129B2 (en) * | 2008-06-26 | 2013-08-01 | Acciona Agua, S.A.U. | Process for the desalination and elimination of boron from water and equipment to carry out said process |
| CN103626311A (en) * | 2012-08-24 | 2014-03-12 | 岳勇斌 | Low-yield single-pump two-stage reverse osmosis system |
| CN202729915U (en) * | 2012-08-24 | 2013-02-13 | 岳勇斌 | Low-yield single-pump two-stage reverse osmosis system |
| JP6049498B2 (en) * | 2013-02-25 | 2016-12-21 | 三菱重工業株式会社 | Reverse osmosis membrane device and operating method thereof |
| CN203877944U (en) * | 2014-06-06 | 2014-10-15 | 深圳市优美环境治理有限公司 | Multistage reverse osmosis membrane device for seawater desalination |
-
2014
- 2014-06-13 CN CN201420318354.6U patent/CN203877944U/en not_active Expired - Lifetime
-
2015
- 2015-06-12 WO PCT/CN2015/081329 patent/WO2015188776A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015188776A1 (en) * | 2014-06-06 | 2015-12-17 | 王桂林 | Multi-stage reverse osmosis membrane device applied to sea water desalination |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015188776A1 (en) | 2015-12-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203807258U (en) | Wastewater-discharge-free reverse osmosis water purifier | |
| WO2017180584A2 (en) | Household water purification system | |
| CN203877944U (en) | Multistage reverse osmosis membrane device for seawater desalination | |
| CN202898083U (en) | Reverse osmosis water purifier | |
| CN210764674U (en) | Full-automatic control reverse osmosis seawater desalination device | |
| CN102951704B (en) | Reverse osmosis seawater desalination process and device thereof | |
| CN202011793U (en) | Multi-water quality water purifier | |
| CN204107166U (en) | A kind of filter | |
| CN204097219U (en) | A kind of RO reverse osmosis Controlling System that can reduce machinery breakdown and energy consumption | |
| CN207933141U (en) | A kind of Intelligent reverse osmosis water purifier | |
| CN206368080U (en) | A kind of ultra-low-pressure reverse osmosis water purifier | |
| CN204384930U (en) | Airtight pressure-bearing type RO reverse osmosis water purifier and condensed water thereof reclaim storing device | |
| CN208545160U (en) | A kind of reverse osmosis water purification machine water circuit system with Water way controller | |
| CN209205048U (en) | Flow sensing formula pressure pot water-driven system with relief valve | |
| CN203112618U (en) | Reverse osmosis membrane water filtering device | |
| CN203212392U (en) | Reverse osmosis pure water treatment system | |
| CN202666693U (en) | Reverse osmosis water treating system with high/low-pressure protecting switch | |
| CN104679042A (en) | Reverse osmosis pressure-adjustable type blasting device | |
| CN201420040Y (en) | Self-suction type water purifier | |
| CN215102362U (en) | Intelligent water locking leakage-proof energy-saving double-water reverse osmosis water purifier | |
| CN204385807U (en) | The multistage constant pressure water supply equipment of a kind of haemodialysis water making device | |
| CN207451756U (en) | A kind of reverse osmose pure-water system | |
| CN215249981U (en) | Reverse osmosis water generator with disc filter | |
| CN217962037U (en) | Reverse osmosis equipment with conversion function | |
| CN204588767U (en) | A kind of novel trans permeator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141015 |
|
| CX01 | Expiry of patent term |