CN204469560U - A kind of coiled reverse osmosis membrane element - Google Patents
A kind of coiled reverse osmosis membrane element Download PDFInfo
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- CN204469560U CN204469560U CN201520107278.9U CN201520107278U CN204469560U CN 204469560 U CN204469560 U CN 204469560U CN 201520107278 U CN201520107278 U CN 201520107278U CN 204469560 U CN204469560 U CN 204469560U
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Abstract
The utility model provides a kind of coiled reverse osmosis membrane element, comprise containing a sealed end and center water producing pipe pipe having multiple pure water collection through hole and at least one group of water purification diaphragm be wound on the water producing pipe of described center, described water purification diaphragm by counter-infiltration diaphragm, pure water flow-guiding screen, flow-guiding screen is stacked forms in water inlet; Described in the place of membrane component water side, water purification diaphragm is concordant on the length direction of membrane component with center water producing pipe, and is provided with for placing basepipe seal circle and carrying out spacing mechanism to described basepipe seal circle in the water producing pipe inside, center near membrane component water side place.In membrane component of the present utility model sealing means can solve well because of basepipe seal circle R aging, come off or break and cause the life-span of membrane component not reach the problem of predicted value.In addition, the utility model also can make membrane component and the water purifier containing this membrane component to small size future development.
Description
Technical field
The utility model belongs to clean water treatment technical field, relates to the reverse-osmosis membrane element removing the impurity such as silt in water, mud, colloid, microorganism, virus, organic matter and inorganic salts, particularly relates to a kind of coiled reverse osmosis membrane element.
Background technology
At present, known coiled reverse osmosis membrane element comprises containing a sealed end (membrane component water inlet end place) and center water producing pipe pipe having multiple pure water collection through hole and at least one group of water purification diaphragm be wound on the water producing pipe of described center, described water purification diaphragm by counter-infiltration diaphragm, pure water flow-guiding screen, flow-guiding screen is stacked forms in water inlet; Described counter-infiltration diaphragm forms water inlet flow channel through between its inner surface folding, and water inlet flow-guiding screen is arranged in water inlet flow channel; Formed between its adjacent external surfaces and produce water flow passage, pure water flow-guiding screen is arranged in and produces water flow passage; The fold line of described counter-infiltration diaphragm and described center water producing pipe contiguous and with its length direction line parallel; Described product water flow passage only has the pure water delivery port towards center water producing pipe, and thus the bonding of other three sides glue seals; Described water inlet flow channel on the dual-side perpendicular to center water producing pipe while be raw water inlet, another side is dense water out, its be parallel to center water producing pipe distal edge sealing; After water purification diaphragm group is wrapped in central tube, whole outer surface adhesive tape carries out environmental sealing.The coiled reverse osmosis membrane element of this structure, former water enters water inlet flow channel from one end surface current of element, part water forms pure water through counter-infiltration membrane filtration and flows in the water producing pipe of center from pure water flow-guiding screen, the remaining dense water (accounting for 10 ~ 30% of former water volume) forming pure water that do not filter flows out along the water inlet flow-guiding screen in water inlet flow channel from the other end of element, as shown in Figure 3.
As can be seen from Fig. 3, the center water producing pipe of current reverse-osmosis membrane element is on the market all respectively stretch out one section (length of water purification diaphragm is less than the length of center water producing pipe) at water inlet end and water side, in membrane component water side, for sealing the pure water and dense water that water side place produces on the outer wall that basepipe seal circle R is connected to center water producing pipe.But along with the prolongation of membrane component service time, this basepipe seal circle R may occur aging, come off or rupture event, and once there is this kind of situation wherein, all can need to change whole membrane component, this makes the life-span of membrane component all can not reach predicted value under many circumstances.In addition, reverse osmosis membrane is in the market due to water inlet flow channel long (i.e. the length of water purification diaphragm), and the pollutant in former water is long at film superficial residence time, easily causes film surface scale to pollute, membrane component salt rejection rate and aquifer yield is made to reduce obviously, the membrane component lost of life.
Utility model content
Current reverse osmosis membrane on the market has a very important application, i.e. household water filter market.Technical problem to be solved in the utility model is to provide a kind of coiled reverse osmosis membrane element for household water filter, in order to prevent the basepipe seal circle R of coiled reverse osmosis membrane element occur aging, come off or fracture phenomena thus make the life-span of membrane component not reach the situation of predicted value.Further, the utility model also provides a kind of membrane component containing shorter water purification diaphragm by the structure changing membrane component, for slowing down the easily fouling of existing coiled reverse osmosis membrane element surface, overcome membrane component pollution problem, extend the service life of membrane component, greatly reduce the volume of membrane component, for more spaces are saved in water purifier product design simultaneously.
Therefore, the utility model provides a kind of coiled reverse osmosis membrane element, comprise containing a sealed end and center water producing pipe pipe having multiple pure water collection through hole and at least one group of water purification diaphragm be wound on the water producing pipe of described center, described water purification diaphragm by counter-infiltration diaphragm, pure water flow-guiding screen, flow-guiding screen is stacked forms in water inlet; Described counter-infiltration diaphragm forms water inlet flow channel through between its inner surface folding, and water inlet flow-guiding screen is arranged in water inlet flow channel; Formed between the adjacent external surfaces of described counter-infiltration diaphragm and produce water flow passage, pure water flow-guiding screen is arranged in and produces water flow passage; The fold line of described counter-infiltration diaphragm and described center water producing pipe contiguous and with its length direction line parallel; Described product water flow passage only has the pure water delivery port towards center water producing pipe, other three side seals; Described water inlet flow channel on the dual-side perpendicular to center water producing pipe while be raw water inlet, another side is dense water out, its be parallel to center water producing pipe distal edge sealing; And water purification diaphragm is concordant on the length direction of membrane component with center water producing pipe described in the place of membrane component water side, and be provided with for placing basepipe seal circle and carrying out spacing mechanism to described basepipe seal circle in the water producing pipe inside, center (the interior vacancy within inside pipe wall) near membrane component water side place.
Those skilled in the art are accessible, and the water inlet end sealing of the water producing pipe of center described in prior art 1, makes former water 7 cannot enter center water producing pipe 1 from water inlet end.The mode of other three side seals of described product water flow passage is such as by all closed for described three sides of adjacent two panels counter-infiltration diaphragm 2 bonding by viscose glue.
Those skilled in the art know, the basepipe seal circle R be arranged in prior art near water side on center water producing pipe outer wall is the dense water for the pure water and water side isolating water end (W.E.) place center water producing pipe 1, and basepipe seal circle R is requisite parts in membrane component.Therefore, basepipe seal circle R aging, come off or break and will the pure water having been undertaken being separated by membrane component be caused to be polluted.In adopting in membrane component of the present utility model, the mode of sealing solves this problem, in the utility model, generally basepipe seal circle R is not comprised in described membrane component, and be set to basepipe seal circle R depart from the separate part beyond membrane component, or basepipe seal circle R is set to a part for putamina.Interior sealing means of the present utility model is (in membrane component use procedure, it is inner that basepipe seal circle R is arranged in center water producing pipe 1) with external seal mode (the membrane component use procedure of prior art, basepipe seal circle R is positioned on the outer wall of center water producing pipe 1 one end) compare, basepipe seal circle R no longer includes dropping situations, and its probability of damage significantly reduces, aging conditions is retarded.
Basepipe seal circle R in the utility model assembles with production membrane component, but the membrane component more preferably in the utility model does not comprise basepipe seal circle R, and basepipe seal circle R is arranged on putamina that (putamina is generally produced by water purifier manufacturer, membrane component is generally produced by membrane manufacturer), in such a situa-tion, there is the basepipe seal circle R of interior sealing to occur damaged situation even if even, also only need to change the putamina be worth as several yuans, and do not need to change the membrane component be worth as up to a hundred yuans.
In sum, membrane component of the present utility model use in sealing means can solve well because of basepipe seal circle R aging, come off or break and cause the life-span of membrane component not reach the problem of predicted value.In addition, in the utility model, the entire length of water purification diaphragm described in the place of water side and center water producing pipe 1 concordant membrane component membrane component under the prerequisite not affecting UF membrane efficiency that the utility model also can be made to provide on the length direction of membrane component can shorten about 20mm; The shortening of membrane component length can make membrane component and the water purifier containing this membrane component to small size future development.
In a kind of concrete embodiment, the inwall of described center water producing pipe is provided with step, at membrane component axially, described step to the internal diameter of the center water producing pipe at membrane component water side place than described step to the internal diameter of the center water producing pipe at membrane component water inlet end place large 0.5 ~ 1.5mm, preferably large 0.8 ~ 1.2mm; And described step to the axial distance of membrane component water side is 5 ~ 40mm, be preferably 15 ~ 25mm.Those skilled in the art's easy understand ground, this in realizing, during sealing, carries out spacing a kind of mode to the basepipe seal circle R being arranged in center water producing pipe in the utility model.In this fashion, the size (diameter) of described basepipe seal circle R can be consistent with the size of basepipe seal circle R of the prior art, and thus this is the preferred embodiment in the utility model.
In another kind of detailed description of the invention, described position-limit mechanism is be arranged on the projection on the water producing pipe inwall of center; And the axial distance of described projection and described membrane component water side is 5 ~ 40mm.The axial distance of preferred described projection and described membrane component water side 92 is 15 ~ 25mm.The shape of described projection can be annular projection, or multiple uniform point-like is protruding, and this content is unrestricted in the utility model.In addition, in the scheme that described position-limit mechanism is protruding, can be consistent at the internal diameter of the axially described center water producing pipe 1 of membrane component, also can be inconsistent.In addition, those skilled in the art's easy understand ground, the projection in the utility model membrane component and step can exist completely simultaneously.
In a preferred embodiment, the thickness of water inlet flow-guiding screen is 0.38mm-0.55mm, and is 180 ~ 220mm in the length of the axially described water purification diaphragm of described membrane component.
Water inlet flow-guiding screen in this embodiment of the utility model selects the water inlet flow-guiding screen (of the prior art water inlet flow-guiding screen general thickness at 0.68mm more than) more much smaller than thickness in prior art, thus (the membrane component body outer diameter of diaphragm peripheral seal circle 8 is not comprised at below 52mm at the body outer diameter of membrane component, be generally 42 ~ 50mm, be more preferably 44 ~ 48mm) under identical prerequisite, water purification diaphragm in the utility model can reel more multi-layered on center water producing pipe 1, simultaneously the length of water purification diaphragm is wanted much shorter (length of this compliant membrane element existing is 298 ± 5mm compared with the membrane component of same specification in prior art (as 50 gallons), and the length of water purification diaphragm is about 260mm).That is, the change of flow-guiding screen 3 thickness characteristics of intaking can't affect UF membrane efficiency when the length of whole membrane component can be made to shorten about 60mm compared to existing technology.This at least can bring following two advantages: one is that membrane component length in the utility model and volume significantly reduce, and is conducive to membrane component and water purifier to miniaturization.The more important thing is, significantly the shortening of thinning and membrane component length of water inlet flow-guiding screen is all conducive to alleviating the pollution of former water to rete, and then significantly extends the service life of membrane component.Particularly, thinner water inlet flow-guiding screen can make former water form turbulent flow better in membrane component inside, reduces the pollution level of membrane component.And the shortening of water purification diaphragm length makes the former water of unit volume also shorten in the path of membrane component inside, therefore former water pollutant flow through path also corresponding shortening, significantly can reduce the contact range on pollutant and film surface like this, thus reduce the pollution speed of membrane component.
Therefore, the utility model is under the prerequisite ensureing membrane component water flux and salt rejection rate, and shorten the path of former water in membrane component, what so also shorten former water pollutant flows through path, reduce the pollution speed of former water to membrane component, extend the service life of membrane component.Meanwhile, significantly shorten membrane component length, save usage space, the problem short for the water quality poor regional membrane component life-span provides solution.
In the preferred embodiment of another kind, described in membrane component water inlet end place, water purification diaphragm is concordant on the length direction of membrane component with center water producing pipe, and center water producing pipe contains inner sealing end, the distance that described inner sealing end is arranged on from membrane component water inlet end is 5 ~ 40mm place, and preferably this distance is 15 ~ 25mm.Those skilled in the art's easy understand, the center water producing pipe section between inner sealing end 13 to membrane component water inlet end 91 is the load segment 14 of membrane component in the utility model.Those skilled in the art know, load segment of the prior art realizes exterior (membrane component is arranged in water purifier) by arranging one section of center water producing pipe longer than water purification diaphragm at membrane component water inlet end 91 place, and interior assembling in the utility model, will be changed herein into, the length of whole membrane component under the prerequisite not affecting UF membrane efficiency can be made to shorten about 20mm further, and thus the overall volume of membrane component reduces further.
In a kind of concrete embodiment, described membrane component also comprises the sealant tape that water purification diaphragm outer surface is wound around, and to be arranged on outside described sealant tape and for the diaphragm peripheral seal circle of fixing membrane component.In the embodiment that another kind is concrete, described coiled reverse osmosis membrane element comprises two groups of water purification diaphragms.
In the preferred detailed description of the invention of another kind, the total length of described coiled reverse osmosis membrane element is identical with the length of described water purification diaphragm, and is 180 ~ 220mm.The total length of preferred described coiled reverse osmosis membrane element is not more than 200mm.When using this preferred embodiment, the more traditional membrane component contraction in length 25 ~ 40% of the same type of coiled reverse osmosis membrane element total length described in the utility model, the overall volume comparatively conventional film element reduction by 25 ~ 40% of membrane component, for water purifier product saves more spaces, for water purifier provides the foundation toward miniaturization development.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the utility model is further described, wherein:
Fig. 1 is the deployed configuration schematic diagram before coiled reverse osmosis membrane element of the present utility model is not wound around;
Fig. 2 be coiled reverse osmosis membrane element structural representation of the present utility model and use time water (flow) direction schematic diagram;
Fig. 3 be coiled reverse osmosis membrane element overall structure schematic diagram of the prior art and use time water (flow) direction schematic diagram;
Fig. 4 is the utility model embodiment 1 and traditional 50GPD coiled reverse osmosis membrane element contrast test variations of flux schematic diagram;
Label in accompanying drawing is:
1, center water producing pipe; 11, step; 12, pure water collection through hole; 13, inner sealing end; 14, load segment; 15, the inwall of center water producing pipe; 16, the outer wall of center water producing pipe; 2, counter-infiltration diaphragm; 3, water inlet flow-guiding screen; 4, pure water flow-guiding screen; 5, sealant tape; 6, water is produced; 7, Yuan Shui; 8, diaphragm peripheral seal circle; 9, coiled reverse osmosis membrane element; 91, membrane component water inlet end; 92, membrane component water side; 921, pure water outlet; 922, dense water out.
Detailed description of the invention
A kind of coiled reverse osmosis membrane element is provided in the present embodiment, comprise containing a sealed end and center water producing pipe pipe having multiple pure water collection through hole and the two groups of water purification diaphragms be wound on the water producing pipe of described center, described water purification diaphragm by counter-infiltration diaphragm, pure water flow-guiding screen, flow-guiding screen is stacked forms in water inlet; Described counter-infiltration diaphragm forms water inlet flow channel through between its inner surface folding, and water inlet flow-guiding screen is arranged in water inlet flow channel; Formed between its adjacent external surfaces and produce water flow passage, pure water flow-guiding screen is arranged in and produces water flow passage; The fold line of described counter-infiltration diaphragm and described center water producing pipe contiguous and with its length direction line parallel; Described product water flow passage only has the pure water delivery port towards center water producing pipe, other three side seals; Described water inlet flow channel on the dual-side perpendicular to center water producing pipe while be raw water inlet, another side is dense water out, its be parallel to center water producing pipe distal edge sealing; And all concordant on the length direction of membrane component with center water producing pipe with water purification diaphragm described in the place of water side at the water inlet end of membrane component, and be provided with for placing basepipe seal circle and carrying out spacing step to described basepipe seal circle in the water producing pipe inside, center near membrane component water side place.
The total length of coiled reverse osmosis membrane element is 180 ~ 220mm, preferably 180 ~ 200mm, and water inlet flow-guiding screen thickness is 0.38 ~ 0.55mm, is preferably 0.38 ~ 0.5mm.
In Fig. 1, the water purification diaphragm on the right is wound around on center water producing pipe 1 in the drawings with counterclockwise direction, pure water flow-guiding screen 4 is close to the outer surface of center water producing pipe 1 after winding and arranges (width of pure water flow-guiding screen 4 is more much bigger than the width of counter-infiltration diaphragm, and the one deck being close to center water producing pipe outer wall after making water purification diaphragm be wrapped in center water producing pipe 1 is pure water flow-guiding screen 4).Water inlet flow-guiding screen is such as PP or PE material, uses the material that this area is conventional.Pure water flow-guiding screen is such as PET material, its very thin thickness, and thus the volume impact of improvement on membrane component of its thickness is very micro-, in the utility model, thus use pure water flow-guiding screen 4 conventional in prior art.Water inlet flow-guiding screen in the utility model and pure water flow-guiding screen all can by being purchased acquisition.
In Fig. 2, be about 10mm (being such as 10 ~ 10.4mm, preferred 10.2mm) from center water producing pipe 1 internal diameter of 11 sections, membrane component water inlet end 91 to step, external diameter is about 17mm, and this is identical with the structure of center of the prior art water producing pipe 1.Just, the internal diameter of the center water producing pipe of center of the present utility model water producing pipe between 92 to the step of membrane component water side will larger about 1mm (being such as 0.8 ~ 1.2mm), i.e. 11.2mm, for arranging basepipe seal circle R herein, in realizing, sealing is (during assembling, basepipe seal circle R to dispose from membrane component water side 92 in the water producing pipe of center and advances to membrane component water inlet end 91), arranging of step can prevent basepipe seal circle R from slipping into the more depths of center water producing pipe towards membrane component water inlet end 91 herein, that is, the design of this step is for spacing to central tube sealing ring R.Similarly, change into when being arranged to projection at step place, the mode that basepipe seal circle R is arranged in membrane component of the present utility model is identical.As can be seen from Fig. 2, center water producing pipe is evenly equipped with pure water collection through hole 12, center water producing pipe is provided with inner sealing end 13 near membrane component water inlet end 91, and at the load segment 14 near water producing pipe centered by membrane component water inlet end 91 place, the center water producing pipe outer surface that in the utility model, load segment is corresponding is also wound with counter-infiltration diaphragm.Therefore, only this design also can make the length of whole membrane component reduce about 20mm.
In the utility model, described center water producing pipe is such as the ABS with equally distributed perforate manages (material comprising sealed end 13 is also ABS).
The present embodiment adopts way of contrast to describe the situation of change of coiled reverse osmosis membrane element performance, and experimental conditions is as follows:
Describe according to the utility model that to get thickness be that the former water flow-guiding screen of 0.43mm prepares that total length is 180mm, main diameter is the coiled reverse osmosis membrane element of 47mm, carry out contrast test with traditional 50GPD coiled reverse osmosis membrane element.
Testing tool is household reverse osmosis water purifier, is equipped with 50GPD self priming pump, and prepares 500ppmCaCl
2with 1000ppmNaHCO
3mixed solution, as test fluid, simulates CaCO in practical application
3fouling, draws variations of flux curve according to actual test water variations of flux situation, as shown in Figure 4.
What experimental result: Fig. 4 described is two kinds of membrane components ratios that membrane component water flux is decayed when carrying out Contamination measurement, there is some difference for the attenuation of embodiment and traditional its water flux of 50GPD coiled reverse osmosis membrane element contrast test, when the pollution time reaches 10h, tradition 50GPD coiled reverse osmosis membrane element water flux attenuation ratio reaches 28.3%, and embodiment water flux attenuation ratio is 15.7%, embodiment antifouling property is with the obvious advantage, effectively can extend the life-span of membrane component in use procedure.Meanwhile, coiled reverse osmosis membrane element comparatively traditional coiled reverse-osmosis membrane element shortening nearly 40% in the application, volume also reduces nearly 40%, for downstream water purifier provides strong support toward miniaturization development; In addition, prepare the comparatively existing cost of manufacture in the art of coiled reverse osmosis membrane element in the application and reduce about 10%.
Although should be appreciated that the object in order to explain there is described herein specific embodiments of the present utility model according to above, but still various change can be carried out and without prejudice to spirit and scope of the present utility model.Therefore, the utility model only limits by appended claims.
Claims (10)
1. a coiled reverse osmosis membrane element (9), comprise containing a sealed end and the center water producing pipe (1) pipe having multiple pure water collection through hole (12) and at least one group of water purification diaphragm be wound on described center water producing pipe (1), described water purification diaphragm to be stackedly made up of counter-infiltration diaphragm (2), pure water flow-guiding screen (4), water inlet flow-guiding screen (3); Described counter-infiltration diaphragm (2) forms water inlet flow channel through between its inner surface folding, and water inlet flow-guiding screen (3) is arranged in water inlet flow channel; Formed between the adjacent external surfaces of described counter-infiltration diaphragm (2) and produce water flow passage, pure water flow-guiding screen (4) is arranged in and produces water flow passage; The fold line of described counter-infiltration diaphragm (2) and described center water producing pipe (1) contiguous and with its length direction line parallel; Described product water flow passage only has the pure water delivery port towards center water producing pipe (1), other three side seals; Described water inlet flow channel on the dual-side perpendicular to center water producing pipe (1) while be raw water inlet, another side is dense water out (922), its be parallel to center water producing pipe (1) distal edge sealing;
It is characterized in that: water purification diaphragm is concordant on the length direction of membrane component (9) with center water producing pipe (1) described in membrane component water side (92) place, and be provided with for placing basepipe seal circle (R) and carrying out spacing mechanism to described basepipe seal circle (R) in center water producing pipe (1) inside near membrane component water side (92) place.
2. membrane component according to claim 1, it is characterized in that, the inwall at described center water producing pipe (1) is provided with step (11), at membrane component axially, described step (11) to the internal diameter of the center water producing pipe (1) at membrane component water side (92) place than described step (11) to the large 0.5 ~ 1.5mm of the internal diameter of the center water producing pipe (1) at membrane component water inlet end (91) place, and described step (11) to the axial distance of membrane component water side (92) is 5 ~ 40mm.
3. membrane component according to claim 2, it is characterized in that, described step (11) to center water producing pipe (1) internal diameter at membrane component water side (92) place than described step (11) to the large 0.8 ~ 1.2mm of center water producing pipe (1) internal diameter at membrane component water inlet end (91) place, and described step (11) to the axial distance of membrane component water side (92) is 15 ~ 25mm.
4. membrane component according to claim 1, is characterized in that, position-limit mechanism is for being arranged on the projection on center water producing pipe (1) inwall; And the axial distance of described projection and described membrane component water side (92) is 5 ~ 40mm.
5. according to the membrane component in Claims 1 to 4 described in any one, it is characterized in that, the thickness of water inlet flow-guiding screen (3) is 0.38mm-0.55mm, and is 180 ~ 220mm in the length of the axially described water purification diaphragm of described membrane component.
6. according to the membrane component in Claims 1 to 4 described in any one, it is characterized in that, described in membrane component water inlet end (91) place, water purification diaphragm is concordant on the length direction of membrane component (9) with center water producing pipe (1), and center water producing pipe (1) is containing inner sealing end (13), the distance that described inner sealing end (13) is arranged on from membrane component water inlet end (91) is 5 ~ 40mm place.
7. membrane component according to claim 6, is characterized in that, described inner sealing end (13) is 15 ~ 25mm with the axial distance of described membrane component water inlet end (91).
8. according to the membrane component in Claims 1 to 4 described in any one, it is characterized in that, described membrane component also comprises the sealant tape (5) that water purification diaphragm outer surface is wound around, and is arranged on described sealant tape (5) outside and for the diaphragm peripheral seal circle (8) of fixing membrane component.
9. according to the membrane component in Claims 1 to 4 described in any one, it is characterized in that, described coiled reverse osmosis membrane element (9) comprises two groups of water purification diaphragms.
10. according to the membrane component in Claims 1 to 4 described in any one, it is characterized in that, the total length of described coiled reverse osmosis membrane element is identical with the length of described water purification diaphragm, and is 180 ~ 220mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520107278.9U CN204469560U (en) | 2015-02-13 | 2015-02-13 | A kind of coiled reverse osmosis membrane element |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520107278.9U CN204469560U (en) | 2015-02-13 | 2015-02-13 | A kind of coiled reverse osmosis membrane element |
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| CN204469560U true CN204469560U (en) | 2015-07-15 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104607047A (en) * | 2015-02-13 | 2015-05-13 | 湖南澳维环保科技有限公司 | Roll type reverse osmosis membrane element |
| CN105217733A (en) * | 2015-10-12 | 2016-01-06 | 北京碧水源膜科技有限公司 | A kind of nanometer filtering film water treatment system of two-way flow and method |
| CN107890780A (en) * | 2017-11-07 | 2018-04-10 | 天津珑源新材料科技有限公司 | A kind of ultrafiltration, counter-infiltration one membrane component and preparation method thereof |
| CN116078177A (en) * | 2023-03-06 | 2023-05-09 | 华电水务装备(天津)有限公司 | Hollow fiber forward osmosis membrane, preparation method and application |
-
2015
- 2015-02-13 CN CN201520107278.9U patent/CN204469560U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104607047A (en) * | 2015-02-13 | 2015-05-13 | 湖南澳维环保科技有限公司 | Roll type reverse osmosis membrane element |
| CN105217733A (en) * | 2015-10-12 | 2016-01-06 | 北京碧水源膜科技有限公司 | A kind of nanometer filtering film water treatment system of two-way flow and method |
| CN105217733B (en) * | 2015-10-12 | 2018-08-10 | 北京碧水源膜科技有限公司 | A kind of the nanometer filtering film water processing system and method for two-way flow |
| CN107890780A (en) * | 2017-11-07 | 2018-04-10 | 天津珑源新材料科技有限公司 | A kind of ultrafiltration, counter-infiltration one membrane component and preparation method thereof |
| CN116078177A (en) * | 2023-03-06 | 2023-05-09 | 华电水务装备(天津)有限公司 | Hollow fiber forward osmosis membrane, preparation method and application |
| CN116078177B (en) * | 2023-03-06 | 2023-06-02 | 华电水务装备(天津)有限公司 | Hollow fiber forward osmosis membrane, preparation method and application |
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