CN109264826A - A kind of reverse osmosis membrane structure, filter core and water purifier - Google Patents
A kind of reverse osmosis membrane structure, filter core and water purifier Download PDFInfo
- Publication number
- CN109264826A CN109264826A CN201811266834.1A CN201811266834A CN109264826A CN 109264826 A CN109264826 A CN 109264826A CN 201811266834 A CN201811266834 A CN 201811266834A CN 109264826 A CN109264826 A CN 109264826A
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- water
- reverse osmosis
- raw water
- osmosis membrane
- runner
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 313
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 85
- 239000012528 membrane Substances 0.000 title claims abstract description 84
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000008213 purified water Substances 0.000 claims abstract description 9
- 238000002955 isolation Methods 0.000 claims abstract description 5
- 238000004891 communication Methods 0.000 claims abstract description 4
- 230000008676 import Effects 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 14
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 230000010287 polarization Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 7
- 238000001914 filtration Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000000306 component Substances 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000008569 process Effects 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
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
Abstract
A kind of reverse osmosis membrane structure, filter core and water purifier provided by the invention, wherein reverse osmosis membrane structure includes central tube, concentrated water section and pure water section including isolation, there is concentrated water import on the side wall of concentrated water section, concentrated water section forms concentrated water outlet far from one end of pure water section, there is central tube purified water inlet, pure water section forms central tube pure water outlet far from one end of concentrated water section on the side wall of pure water section；Reverse osmosis membrane assembly, including reverse osmosis membrane, reverse osmosis membrane rolls around central tube and is formed with raw water runner, pure water runner, raw water runner is equipped with the first raw water inlet far from one end of central tube, and the raw water water outlet of raw water runner and concentrated water inlet communication, the pure water outlet of pure water runner are connected to central tube purified water inlet.The growth of raw water runner is realized, raw water is straight directly to be gone out, and reverse osmosis membrane crossflow velocity is more common, and membrane component is higher, can effectively slow down the concentration polarization of film surface, delay film surface structure, achieve the purpose that prolonging service life of filter elements.
Description
Technical field
The present invention relates to water treatment fields, and in particular to a kind of reverse osmosis membrane structure, filter core and water purifier.
Background technique
Prinking water filter currently on the market generally can all use reverse osmosis (RO) film filter structure, the filtering of reverse osmosis (RO) film
Structure can be filtered the impurity such as inorganic salts, heavy metal ion, organic matter, colloid, bacterium, virus in raw water.Therefore
Reverse osmosis (RO) film filter structure is the core component of Prinking water filter, the filter effect and reverse osmosis (RO) film of Prinking water filter
The filter effect of filter structure is directly related.
Chinese patent literature CN204625265U discloses a kind of reverse osmosis membrane structure for improving diaphragm salt rejection rate and flux,
Including central tube and osmosis filtration diaphragm, osmosis filtration roll-film is located at anti-around osmosis filtration structure, central tube is formed
It further include pure water separator in the middle channel of impregnated filtration structures, on the centrally disposed pipe of pure water separator and far from middle channel
Lower end, pure water separator is set as raw water intake tunnel to the middle channel between middle channel lower end, raw water water inlet is logical being located at
Osmosis filtration structure in road is equipped with water inlet structure, is equipped on pure water separator to the central tube between middle channel upper end
Several pure water water inlet structures.The central tube that the reverse osmosis membrane structure uses is divided into raw water water inlet portion and pure water water part, leads to
Seal isolation raw water runner and pure water runner are crossed, raw water enters the raw water runner of film page from central tube, from the cylindrical side of filter core
Concentrated water is flowed out, the filter core crossflow velocity of the more common end face disengaging of the mistake water flow passage of raw water is higher, can play and slow down film surface concentration difference
Polarization phenomena extend the effect of filter element life, but due to being intake from central tube one end, are easy to cause film surface close to central tube
The film surface of pure water water exit end forms a part of slough, and flowing water is unsmooth, and film surface utilization is not high.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that reverse osmosis membrane structure film surface in the prior art is overcome to be easy
The shorter defect of fouling, filter element life, to provide a kind of reverse osmosis membrane that can delay scaling rate, prolonging service life of filter elements
Structure, filter core and water purifier.
In order to solve the above technical problems, a kind of reverse osmosis membrane structure provided by the invention, comprising:
Central tube, concentrated water section and pure water section including isolation have concentrated water import on the side wall of the concentrated water section, described dense
Water section forms concentrated water outlet far from one end of the pure water section, has central tube purified water inlet, institute on the side wall of the pure water section
It states pure water section and forms central tube pure water outlet far from one end of the concentrated water section；
Reverse osmosis membrane assembly, including reverse osmosis membrane, the reverse osmosis membrane roll around the central tube and are formed with raw water stream
Road, pure water runner, the raw water runner are equipped with the first raw water inlet, and the raw water runner far from one end of the central tube
Raw water water outlet and the concentrated water inlet communication, the pure water outlet of the pure water runner and the central tube purified water inlet connect
It is logical.
The raw water runner close to the pure water section side edge be equipped with the second raw water inlet, second raw water into
The inflow at the mouth of a river is less than the inflow of first raw water inlet.
The width of second raw water inlet be n, one where first raw water inlet of the raw water runner
End to the length at second raw water inlet is m, and 0 < n≤m/2.
Each reverse osmosis membrane doubling back wall is rolled around the central tube, shape between the front of the same reverse osmosis membrane
At the raw water runner being connected to water inlet pipe, pure water runner, the fold position are formed between the back side of adjacent two reverse osmosis membrane
Offer the raw water water outlet, each side of the raw water runner except first raw water inlet, second raw water into
It is sealed outside the mouth of a river, the raw water water outlet whereabouts, the pure water runner is close in addition to the pure water outlet whereabouts
Envelope.
Remove first raw water inlet, second raw water inlet, the raw water in each side of the raw water runner
Pass through adhesive sealing outside water outlet whereabouts.
Each side of the pure water runner passes through adhesive sealing in addition to the pure water outlet whereabouts.
The reverse osmosis membrane assembly further includes the raw water flow-guiding screen being arranged in the raw water runner.
The reverse osmosis membrane assembly further includes the pure water flow-guiding screen being arranged in the pure water runner.
Also a kind of water purifier of the present invention, including a kind of reverse osmosis membrane structure.
Also a kind of water purifier of the present invention, including a kind of filter core.
Technical solution of the present invention has the advantages that
1. a kind of reverse osmosis membrane structure provided by the invention, due to the first raw water inlet be located at raw water runner far from
Concentrated water and pure water are located in one end of heart pipe, the both ends of central tube respectively, and raw water enters raw water runner, concentrated water by the first raw water inlet
It is exported from the concentrated water of concentrated water section, pure water is discharged from the central tube pure water outlet of pure water section, and this water intake mode realizes raw water stream
The growth in road, raw water is straight directly to be gone out, and reverse osmosis membrane crossflow velocity is more common, and membrane component is higher, can effectively slow down the dense of film surface
Difference polarization, delays film surface structure, achievees the purpose that prolonging service life of filter elements.
2. the side edge close to the pure water section of a kind of reverse osmosis membrane structure provided by the invention, the raw water runner is set
There is the second raw water inlet, the inflow of second water inlet end is less than the inflow of first raw water inlet, and second is former
The setting of water water inlet can improve the streamflow regime of the slough of raw water flow field end, and the water flow of the second water inlet end goes out towards raw water
The mouth of a river is flowed and is mixed with the high TDS concentrated water of raw water water outlet vicinity, realizes the concentrated water of dilution raw water water outlet, reduces film
Piece scaling tendency.
3. a kind of reverse osmosis membrane structure provided by the invention, each reverse osmosis membrane doubling back wall is rolled up around the central tube
It makes, forms the raw water runner being connected to water inlet pipe between the front of the same reverse osmosis membrane, adjacent two reverse osmosis membrane
Pure water runner is formed between the back side, the fold position offers the raw water water outlet, and institute is removed in each side of the raw water runner
It states and is sealed outside the first raw water inlet, second raw water inlet, the raw water water outlet whereabouts, the stream of pure water
Road seals in addition to the pure water outlet whereabouts, and structure is simple, facilitates and is processed, and cost is relatively low.
4. a kind of reverse osmosis membrane structure provided by the invention, each side of the raw water runner is except first raw water water inlet
Operation and sealing effect are facilitated by adhesive sealing outside mouth, second raw water inlet, the raw water water outlet whereabouts
Fruit is good.
5. a kind of reverse osmosis membrane structure provided by the invention, each side of the pure water runner is except where the pure water outlet
Facilitate operation by adhesive sealing outside place and sealing effect is good.
6. a kind of reverse osmosis membrane structure provided by the invention, the reverse osmosis membrane assembly further includes being arranged in the raw water stream
Raw water flow-guiding screen in road, raw water flow after the first raw water inlet enters raw water runner along raw water flow-guiding screen, are conducive to original
The smooth flow of water flow in water flow passage.
7. a kind of reverse osmosis membrane structure provided by the invention, the reverse osmosis membrane assembly further includes being arranged in the stream of pure water
Pure water flow-guiding screen in road, the pure water formed after reverse osmosis membrane filtration can be flowed along pure water flow-guiding screen, be conducive to pure water runner
The smooth flow of interior pure water.
8. a kind of filter core provided by the invention, including a kind of above-mentioned reverse osmosis membrane structure, the service life of the filter core compared with
It is long.
9. a kind of water purifier provided by the invention, including a kind of above-mentioned filter core, which uses the longevity due to filter core
The longer period so as to shorten replacement filter core is ordered, and then cost-saved.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of the reverse osmosis membrane structure provided in the embodiment of the present invention 1；
Fig. 2 is that a kind of reverse osmosis membrane assembly of reverse osmosis membrane structure shown in FIG. 1 rolls the cross-sectional view after central tube；
Fig. 3 is the structural schematic diagram of raw water runner shown in FIG. 1；
Fig. 4 is the side view at the A of Fig. 3；
The structural schematic diagram of Fig. 5 pure water runner shown in FIG. 1；
Fig. 6 is the side view at the B of Fig. 5.
Description of symbols:
The first raw water inlet of 1-；The second raw water inlet of 2-；3- pure water section；
4- concentrated water section；5- tree lace；The outlet of 6- concentrated water；
7- cutting wires；8- raw water runner；9- pure water runner；
10- reverse osmosis membrane；11- raw water flow-guiding screen；12- pure water flow-guiding screen.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
Embodiment 1
The present embodiment provides a kind of reverse osmosis membrane structures, as depicted in figs. 1 and 2, including central tube and can be around described
The reverse osmosis membrane assembly that central tube rolls.The central tube includes the concentrated water section 4 and pure water section 3 of isolation, the side of the concentrated water section 4
There is concentrated water import, the concentrated water section 4 forms concentrated water outlet 6 far from one end of the pure water section 3, the pure water section 3 on wall
There is central tube purified water inlet, the pure water section 3 forms central tube pure water outlet far from one end of the concentrated water section 4 on side wall.
The reverse osmosis membrane assembly is superimposed in certain sequence by reverse osmosis membrane 10, raw water flow-guiding screen 11, pure water flow-guiding screen 12 and constitutes back wall
It is rolled around central tube, the relatively rear doubling in the front of each reverse osmosis membrane 10, between the front of the same reverse osmosis membrane 10
The raw water runner 8 being connected to water inlet pipe is formed, the raw water flow-guiding screen 11 is located in the raw water runner 8, the raw water runner 8
One end far from the central tube is equipped with the first raw water inlet 1, and the raw water water outlet of the raw water runner 8 and the concentrated water
Inlet communication；Pure water flow-guiding screen 12, which is arranged between the back side of adjacent two reverse osmosis membrane 10, to be formed by pure water runner 9,
The pure water outlet of the pure water runner 9 is connected to the central tube purified water inlet.As shown in Figure 3 and Figure 4, the raw water runner 8
The side edge close to the pure water section 3 be equipped with the second raw water inlet 2, the inflow of second water inlet end is less than described the
The inflow of one raw water inlet 1, the width of second raw water inlet 2 are n, and the length of the raw water runner 8 is m, and 0
< n≤m/2.For avoid the concentrated water in raw water runner 8 through central tube purified water inlet flow into pure water section 3, the raw water runner 8 it is each
Side passes through in addition to first raw water inlet 1, second raw water inlet 2, the raw water water outlet whereabouts
Adhesive sealing, the position as where tree lace 5 in Fig. 3 are the positions for needing to seal；To avoid the pure water in pure water runner 9 from flowing into
The concentrated water section 4 of central tube, such as Fig. 5 and Fig. 6, each side of the pure water runner 9 is logical in addition to the pure water outlet whereabouts
Adhesive sealing is crossed, the position as where tree lace 5 in Fig. 5 is the position for needing to seal.In the present embodiment, due to each described
Reverse osmosis membrane 10 be by front relatively after doubling, therefore, in order to ensure that concentrated water can smoothly enter into concentrated water section 4, need by fold position with
Opening is cut at the corresponding position of concentrated water section 4, the position where cutting wires 7 needs to cut opening as shown in figure 1, which is
The raw water water outlet.
At work, the raw water in water inlet pipe enters raw water runner 8 from the first raw water inlet 1 to the reverse osmosis membrane structure,
Raw water under the effect of the pressure flow by one end along raw water flow-guiding screen 11 from one end of the first raw water inlet 1 towards raw water water outlet
It is dynamic, pure water constantly is produced through reverse osmosis membrane 10 by raw water in flow process, pure water is pure to central tube along pure water flow-guiding screen 12
Water inlet flowing, into pure water section 3, it is aggregated and from central tube pure water outlet flow out.Filtered raw water is constantly concentrated,
Raw water water outlet forms high TDS value concentrated water and is discharged from concentrated water section 4.The effect of second raw water inlet 2 is to improve raw water runner 8
The streamflow regime of the slough of end, to guarantee smooth in water flow in raw water runner 8, the inflow of the first raw water inlet 1 is big
In the inflow of the second raw water inlet 2, the inflow of the first raw water inlet 1 needs to meet the system under the filter core design rate of recovery
Water requirement, as long as the slough streamflow regime that the inflow of the second raw water inlet 2 meets improvement 8 end of raw water runner is
Can, it flows water flow toward raw water export direction and is mixed with the high TDS concentrated water of end, realize dilution end concentrated water, reduce reverse osmosis
10 scaling tendency of permeable membrane, the specific location of the second raw water inlet 2 is depending on the size of filter core, rate of recovery etc..
In interchangeable embodiment, each side of the raw water runner 8 is except first raw water inlet 1, described
Each side of the mode and the pure water runner 9 that are sealed outside second raw water inlet 2, the raw water water outlet whereabouts
Sealing means in addition to the pure water outlet whereabouts are using other sealing means, such as bound edge sealing.
In interchangeable embodiment, it can be not provided with raw water flow-guiding screen 11, pure water flow-guiding screen 12, pure water is adjacent two
Be formed by flowing in pure water runner 9 between the back side of the reverse osmosis membrane 10, raw water the same reverse osmosis membrane 10 just
Flowing in raw water runner 8 is formed by between face.
In interchangeable embodiment, the reverse osmosis membrane assembly includes four reverse osmosis membranes 10, two reverse osmosis membranes
10 front is opposite, and the front of other two reverse osmosis membrane 10 is opposite, is later superimposed these reverse osmosis membranes 10, and front is opposite
Raw water runner 8 is formed between two reverse osmosis membranes 10, forms pure water runner 9 between the back side of two adjacent reverse osmosis membranes 10,
Remove first raw water inlet 1, second raw water inlet 2, the raw water water outlet in each side of the raw water runner 8
It is sealed outside whereabouts, the pure water runner 9 seals in addition to the pure water outlet whereabouts.
Embodiment 2
The present embodiment provides a kind of filter cores, including a kind of reverse osmosis membrane structure provided in above-described embodiment, due to anti-
The raw water runner 8 permeated in membrane structure is longer, and 10 crossflow velocity of reverse osmosis membrane is more common, and membrane component is higher, can effectively slow down
The concentration polarization of film surface delays film surface structure, therefore filter core service life is longer.
Embodiment 3
The present embodiment provides a kind of water purifiers, including a kind of filter core provided in embodiment 2.The water purifier is due to filter core
The service life longer period so as to shorten replacement filter core, and then it is cost-saved.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of reverse osmosis membrane structure characterized by comprising
Central tube, concentrated water section (4) and pure water section (3) including isolation have concentrated water import on the side wall of the concentrated water section (4),
The concentrated water section (4) forms concentrated water outlet (6) far from one end of the pure water section (3), has on the side wall of the pure water section (3)
Central tube purified water inlet, the pure water section (3) form central tube pure water outlet far from one end of the concentrated water section (4)；
Reverse osmosis membrane assembly, including reverse osmosis membrane (10), the reverse osmosis membrane (10) roll around the central tube and are formed with original
Water flow passage (8), pure water runner (9), the raw water runner (8) are equipped with the first raw water inlet far from one end of the central tube
(1), and the raw water water outlet of the raw water runner (8) and the concentrated water inlet communication, the pure water outlet of the pure water runner (9)
It is connected to the central tube purified water inlet.
2. a kind of reverse osmosis membrane structure according to claim 1, which is characterized in that the close institute of the raw water runner (8)
The side edge for stating pure water section (3) is equipped with the second raw water inlet (2), and the inflow of second raw water inlet (2) is less than institute
State the inflow of the first raw water inlet (1).
3. a kind of reverse osmosis membrane structure according to claim 2, which is characterized in that second raw water inlet (2)
Width is n, one end where first raw water inlet (1) of the raw water runner (8) to second raw water inlet
(2) length at is m, and 0 < n≤m/2.
4. a kind of reverse osmosis membrane structure according to claim 2 or 3, which is characterized in that each reverse osmosis membrane (10)
Doubling back wall is rolled around the central tube, and the raw water being connected to water inlet pipe is formed between the front of the same reverse osmosis membrane (10)
Runner (8) forms pure water runner (9) between the back side of adjacent two reverse osmosis membrane (10), and the fold position offers described
Remove first raw water inlet (1), second raw water inlet in each side of raw water water outlet, the raw water runner (8)
(2), it is sealed outside the raw water water outlet whereabouts, the pure water runner (9) is equal in addition to the pure water outlet whereabouts
Sealing.
5. a kind of reverse osmosis membrane structure according to claim 4, which is characterized in that each side of the raw water runner (8)
Pass through in addition to first raw water inlet (1), second raw water inlet (2), the raw water water outlet whereabouts
Adhesive sealing.
6. a kind of reverse osmosis membrane structure according to claim 4, which is characterized in that each side of the pure water runner (9)
Pass through adhesive sealing in addition to the pure water outlet whereabouts.
7. a kind of reverse osmosis membrane structure according to any one of claim 1-3, which is characterized in that the reverse osmosis membrane
Component further includes the raw water flow-guiding screen (11) being arranged in the raw water runner (8).
8. a kind of reverse osmosis membrane structure according to claim 2, which is characterized in that the reverse osmosis membrane assembly further includes setting
Set the pure water flow-guiding screen (12) in the pure water runner (9).
9. a kind of filter core, which is characterized in that including a kind of reverse osmosis membrane structure of any of claims 1-8.
10. a kind of water purifier, which is characterized in that including a kind of filter core described in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811266834.1A CN109264826A (en) | 2018-10-26 | 2018-10-26 | A kind of reverse osmosis membrane structure, filter core and water purifier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811266834.1A CN109264826A (en) | 2018-10-26 | 2018-10-26 | A kind of reverse osmosis membrane structure, filter core and water purifier |
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| CN109264826A true CN109264826A (en) | 2019-01-25 |
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| CN201811266834.1A Withdrawn CN109264826A (en) | 2018-10-26 | 2018-10-26 | A kind of reverse osmosis membrane structure, filter core and water purifier |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109879459A (en) * | 2019-03-13 | 2019-06-14 | 佛山市云米电器科技有限公司 | A kind of and post active carbon compound split type reverse osmosis filter core and its water purifier |
| CN109987678A (en) * | 2019-03-13 | 2019-07-09 | 佛山市云米电器科技有限公司 | A kind of integrated flushing type filter core and the filtration system with the filter core |
| CN110508143A (en) * | 2019-09-20 | 2019-11-29 | 珠海格力电器股份有限公司 | M type coiled reverse osmosis membrane element and preparation method thereof and water purification system |
| CN110508146A (en) * | 2019-09-20 | 2019-11-29 | 珠海格力电器股份有限公司 | Reverse osmosis membrane filter element and water purifier |
| CN113087173A (en) * | 2019-12-23 | 2021-07-09 | 广东美的白色家电技术创新中心有限公司 | Water filtering system |
| CN113120994A (en) * | 2019-12-31 | 2021-07-16 | 浙江绍兴苏泊尔生活电器有限公司 | Reverse osmosis filter element, manufacturing method thereof, filter element assembly and water purifier |
| CN113247991A (en) * | 2021-05-25 | 2021-08-13 | 追创科技(苏州)有限公司 | Reverse osmosis filter core and water purifier |
| CN113750802A (en) * | 2021-09-24 | 2021-12-07 | 佛山市芯耀环保科技有限公司 | Reverse osmosis membrane filter element and manufacturing method thereof |
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| CN108404670A (en) * | 2018-04-02 | 2018-08-17 | 深圳安吉尔饮水产业集团有限公司 | A kind of reverse-osmosis membrane element and the purifier with it |
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