CN201140039Y - Composite reverse osmosis membrane component - Google Patents
Composite reverse osmosis membrane component Download PDFInfo
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- CN201140039Y CN201140039Y CNU2007201921019U CN200720192101U CN201140039Y CN 201140039 Y CN201140039 Y CN 201140039Y CN U2007201921019 U CNU2007201921019 U CN U2007201921019U CN 200720192101 U CN200720192101 U CN 200720192101U CN 201140039 Y CN201140039 Y CN 201140039Y
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- reverse osmosis
- osmosis membrane
- pressure
- porous support
- feed liquid
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Abstract
A composite reverse osmosis membrane component comprises a reverse osmosis membrane layer, a feeding fluid isolation mesh and a central pipe, which is characterized in that the reverse osmosis membrane layer is formed by superposing one to five groups, each group is formed by supposing a high-pressure reverse osmosis membrane on one side of a porous support material layer, superposing a low-pressure reverse osmosis membrane on the other side of the porous support material layer, and superposing the feeding fluid isolation mesh on the other side of the high-pressure reverse osmosis membrane, outwards rolling the feeding fluid isolation mesh on the central pipe, and then sealing the rolled feeding fluid isolation mesh in a cylindrical pressure container. Selecting different combination according to feeding fluid with different concentration can effectively filter varying with grades and pressure.
Description
Affiliated technical field
The utility model relates to a kind of complex reverse osmosis membrane assembly, especially is used in the complex reverse osmosis membrane assembly that the variable concentrations electroplating wastewater is filtered.
Background technology
At present, existing spiral reverse osmosis membrane assembly, the centre of this spiral modular construction is a porous support materials, and both sides are film " double-deckers ", and its end is the bundle plastic tube of punching.The sealing of the edge of duplicature and porous support materials forms a polybag and collects water after filtering, repaves the last layer filter between the film bag, along the central tube this material of reeling, just forms a spiral reverse osmosis module then.With the spiral assembly of spooling, put into pressure vessel, just become complete spiral reverse osmosis unit.In actual the use is that several spiral assemblies are together in series, put into a pressure measuring cylinder, wherein electroplating wastewater feed liquid and central tube PARALLEL FLOW concentrate the back and discharge from the other end, then pass porous support materials by the infiltration of film and collect, discharge by central tube.Because what existing spiral wound membrane module adopted all is with a kind of film, therefore same membrane module can only carry out counter-infiltration at the feed liquid of certain concentration range.Therefore, in actual applications, in order to make feed liquid obtain higher cycles of concentration, have to use multiple membrane module sometimes, be placed on respectively in the different pressures container, through repeatedly pressurization, continuous concentration.Utilization rate of equipment and installations is lower like this, and technological process is longer, can not adapt to the electroplating wastewater feed liquid of variable concentrations, and investment is many, the energy consumption height, and floor space is bigger.
Summary of the invention
In order to overcome the longer shortcoming of technological process that existing spiral reverse osmosis membrane assembly can not adapt to the electroplating wastewater feed liquid filtration of variable concentrations and finish an electroplating wastewater filtration, the utility model provides a kind of complex reverse osmosis membrane assembly, the electroplating wastewater filtration problem of variable concentrations can not only be effectively solved, and one-time process flow process filtration time can be shortened.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of complex reverse osmosis membrane assembly, comprise counter-infiltration rete, feeding liquid filter, central tube, it is characterized in that described counter-infiltration rete has 1 to 5 group of stack to constitute, after every group of one side by high pressure reverse osmosis membrane stack porous support materials layer, the another side of the porous support materials layer low pressure reverse osmosis film that superposes again.Just select various combination for use according to feed concentration, can be to select one group, after the one side of high pressure reverse osmosis membrane stack porous support materials layer, the another side of the porous support materials layer low pressure reverse osmosis film that superposes again, again the feeding liquid filter is superimposed upon the opposite side of high pressure reverse osmosis membrane, the feeding liquid filter is outside, be wound on the central tube and good seal, be rolled into tubular, in the pressurized tank of packing into, also can be 2 groups, the inscape of each group is equally as long as every group is superimposed, with the strict sealing of the film of two kinds of different performances, be wound on the central tube, form a complex reverse osmosis membrane assembly apparatus.This complex reverse osmosis membrane assembly can be operated under the operating pressure of 1 to 8 MPa, when pressure is 1 to 2 MPa, mainly by the low-pressure membrane effect, feed liquid is carried out suitably concentrating; When needs carried out further concentrating to feed liquid, needing to improve operating pressure was 3 to 5 MPas, and mainly worked by high-pressure membrane this moment, feed liquid is implemented high power concentrate.Just can be suitable for the waste water of higher concentration, the high more group number of concentration is many more, effective more filtration electroplating wastewater feed liquid, different densities or concentration according to feed liquid are selected reverse osmosis membrane combination under the different operating pressure status for use, the mainly suitable feed liquid of salt content below 2000ppm that concentrate of low pressure brackish water reverse osmosis membrane, and operating pressure is 1 to 2 MPa, the permeable amount of low pressure brackish water reverse osmosis membrane sharply descends when the feed liquid salt content is higher than 3000ppm, and thickening efficiency is very low.And the high pressure sea water reverse osmosis membrane can concentrate the feed liquid of salt content about 2000ppm to 10000ppm, and operating pressure is 3 to 5 MPas.The high pressure reverse osmosis membrane is at skin, low pressure is at internal layer, from outside to inside, its benefit is exactly behind the high pressure reverse osmosis membrane filtration, and the concentration of waste water is corresponding have been lowered, these waste water feed liquids after the attenuating, through the filtration once more of low pressure reverse osmosis film,, can reach the effect that waste water becomes clear water through the filtration repeatedly of several groups of reverse osmosis membranes, and all in a pressurized tank, finish and need not to change jar, shorten filtration time.
The beneficial effects of the utility model are: compound by to 2 to 10 kinds of films enlarged the scope of application of membrane module; And can take operating pressure comparatively flexibly at different feed liquid, save energy consumption; Because the suitable multiple feed liquid of complex reverse osmosis membrane assembly makes the product utilization rate improve, and the technology floor space reduces, cost of investment reduces simultaneously.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is that complex reverse osmosis membrane launches schematic diagram
Fig. 2 is that complex reverse osmosis membrane is wound on the center tube structure explosion views
Fig. 1, among Fig. 2,1, the feeding liquid filter, 2, the low pressure reverse osmosis film, 3, the high pressure reverse osmosis membrane, 4, the porous support materials layer, 5, central tube, 6, the complex reverse osmosis membrane assembly, 7, desalination water, 8, the electroplating wastewater feed liquid
The specific embodiment
Now select for use one group of complex reverse osmosis membrane assembly (6) to illustrate, a kind of concentrated salt content is in feed liquid (8) and the another kind of feed liquid (8) that concentrates salt content at 2500ppm of 1500ppm, just filter with following combination, after specifically being one side by high pressure sea water reverse osmosis membrane (3) stack porous support materials layer (4), the another side of porous support materials layer (4) the low pressure brackish water reverse osmosis membrane (2) that superposes again, again the feeding liquid filter is superimposed upon the opposite side of high pressure reverse osmosis membrane, feeding liquid filter (1) is outside, be wound on the central tube and good seal, put into columniform pressure volume pot, form one group of complex reverse osmosis membrane assembly apparatus, in the feed liquid of 1500ppm simultaneously enter in the feed liquid of 2500ppm and concentrated salt content when concentrating salt content that filter pressure will reach 3 to 5 MPas only to concentrating salt content effectively plays filtration in the feed liquid (8) of 2500ppm effect when having only one group of complex reverse osmosis membrane assembly (6) device, when the concentrated salt content after the filtration is reduced to the feed liquid (8) of 1700-2000ppm and original concentrated salt content play the second road filtration in the feed liquid (8) of 1500ppm this moment running into low pressure brackish water reverse osmosis membrane (2), effectively make waste liquid be filtered into desalination water (7), just select various combination for use according to feed liquid (8) concentration, effectively classification divides press filtration.
Claims (1)
1, a kind of complex reverse osmosis membrane assembly, comprise counter-infiltration rete, feeding liquid filter (1), central tube (5), it is characterized in that described counter-infiltration rete has the stack of 1--5 group to constitute, after every group of one side by high pressure reverse osmosis membrane (3) stack porous support materials layer (4), the another side of porous support materials layer (4) the low pressure reverse osmosis film (2) that superposes again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201921019U CN201140039Y (en) | 2007-10-23 | 2007-10-23 | Composite reverse osmosis membrane component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201921019U CN201140039Y (en) | 2007-10-23 | 2007-10-23 | Composite reverse osmosis membrane component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201140039Y true CN201140039Y (en) | 2008-10-29 |
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ID=40067756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201921019U Expired - Fee Related CN201140039Y (en) | 2007-10-23 | 2007-10-23 | Composite reverse osmosis membrane component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201140039Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103030192A (en) * | 2011-09-29 | 2013-04-10 | 崔志辉 | RO (reverse osmosis) membrane water processor having double-layer filter screen structure |
| WO2013079012A1 (en) * | 2011-11-30 | 2013-06-06 | Qin Caidong | Method and apparatus for separating substances in solution |
| CN104548939A (en) * | 2014-12-26 | 2015-04-29 | 上海璞玉环保科技有限公司 | Clamping-type reverse osmosis membrane housing |
-
2007
- 2007-10-23 CN CNU2007201921019U patent/CN201140039Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103030192A (en) * | 2011-09-29 | 2013-04-10 | 崔志辉 | RO (reverse osmosis) membrane water processor having double-layer filter screen structure |
| WO2013079012A1 (en) * | 2011-11-30 | 2013-06-06 | Qin Caidong | Method and apparatus for separating substances in solution |
| CN103958035A (en) * | 2011-11-30 | 2014-07-30 | 秦才东 | Method and apparatus for separating substances in solution |
| CN104548939A (en) * | 2014-12-26 | 2015-04-29 | 上海璞玉环保科技有限公司 | Clamping-type reverse osmosis membrane housing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081029 Termination date: 20091123 |