CN109179579A - Roll type reverse osmosis membrane filter element and reverse osmosis water purifier - Google Patents
Roll type reverse osmosis membrane filter element and reverse osmosis water purifier Download PDFInfo
- Publication number
- CN109179579A CN109179579A CN201811209545.8A CN201811209545A CN109179579A CN 109179579 A CN109179579 A CN 109179579A CN 201811209545 A CN201811209545 A CN 201811209545A CN 109179579 A CN109179579 A CN 109179579A
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- water
- raw water
- reverse osmosis
- osmosis membrane
- raw
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 288
- 239000012528 membrane Substances 0.000 title claims abstract description 93
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 82
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 20
- 238000005253 cladding Methods 0.000 claims description 2
- 238000010790 dilution Methods 0.000 claims description 2
- 239000012895 dilution Substances 0.000 claims description 2
- 230000008595 infiltration Effects 0.000 claims 1
- 238000001764 infiltration Methods 0.000 claims 1
- 230000010287 polarization Effects 0.000 abstract description 4
- 230000003111 delayed effect Effects 0.000 abstract 1
- 239000000306 component Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000243 solution Substances 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
- 238000011109 contamination Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 object Substances 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000007789 sealing Methods 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/08—Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Nanotechnology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a roll type reverse osmosis membrane filter element, which comprises a central tube and a reverse osmosis membrane assembly, wherein the reverse osmosis membrane assembly is coated and arranged on the outer side of the central tube, a raw water flow channel is arranged in the reverse osmosis membrane assembly, a raw water main water inlet, a raw water auxiliary water inlet and a concentrated water outlet are arranged on the raw water flow channel, the raw water main water inlet is positioned on one side of the reverse osmosis membrane assembly, the raw water auxiliary water inlet and the concentrated water outlet are positioned on the other side of the reverse osmosis membrane assembly, raw water enters the raw water flow channel from the raw water main water inlet and the raw water auxiliary water inlet respectively, concentrated water flows out of the raw water flow channel from the concentrated water outlet, and. According to the invention, the pollution degree of the tail end of the raw water flow channel can be reduced by a small amount of water entering from one side end face on the premise of not influencing water production, the concentration polarization of the membrane surface is effectively slowed down, the scaling of the membrane surface is delayed, and the purpose of prolonging the service life of the filter element is achieved.
Description
Technical field
The present invention relates to family's electro-technical field more particularly to a kind of coiled reverse osmosis membrane filter cores and anti-penetration water purifier.
Background technique
With the raising that people require drinking water quality, pure water system is just progressing into the drinking-water system of every household
In.Water purifier currently on the market generally can all use reverse osmosis membrane filter element, and reverse osmosis membrane filter element can be to organic in raw water
The impurity such as object, colloid, bacterium, virus are filtered, and especially have high filtering to imitate the impurity such as inorganic salts, heavy metal ion
Rate.Thus reverse osmosis membrane filter element constitutes the core component of water purifier, the filter effect of water purifier and the mistake of reverse osmosis membrane filter element
It is directly related to filter effect.
Existing reverse osmosis membrane filter element there is a problem of when in use it is many, wherein especially the serious is inorganic salts, heavy metal
The solutes such as ion can be deposited on reverse osmosis membrane surface and form fouling, and then influence the service life of reverse osmosis membrane filter element.In order to answer
To this problem, there are many solutions at present, but current solution mostly has more or less drawback.
For example, Chinese patent literature CN204625265U discloses a kind of reverse osmosis membrane structure, during which uses
Heart pipe is divided into raw water water inlet portion and pure water water part, passes through seal isolation raw water runner and pure water runner.Raw water is from center
Pipe enters the raw water runner of film page, flows out concentrated water from the cylindrical side of filter core, the more common end face disengaging of the mistake water flow passage of raw water
Filter core crossflow velocity is higher, can play the role of slowing down film surface concentration polarization phenomenon, extend filter element life.But above scheme
Because being intake from central tube one end, film surface is caused to form a part of slough close to the film surface of central tube pure water water exit end, flowed
Water is unsmooth, and film surface utilization is not high.
Chinese patent literature CN204952675U discloses a kind of reverse osmosis membrane structure, which may be implemented
It intakes and pure water, membrane component has the characteristics that flow of inlet water is big, stable, crossflow velocity is fast out.But above scheme uses
Central tube there is intake tunnel and exhalant canal, center tube structure is complicated, and manufacturing process requires high.
Summary of the invention
The purpose of the present invention is to provide a kind of coiled reverse osmosis membrane filter core and anti-penetration water purifiers, to delay reverse osmosis membrane
On scaling rate, extend the service life of filter element of water purifier.
To achieve the above object, the particular technique side of of the invention a kind of coiled reverse osmosis membrane filter core and anti-penetration water purifier
Case are as follows:
A kind of coiled reverse osmosis membrane filter core, including central tube and reverse osmosis membrane assembly, reverse osmosis membrane assembly cladding setting exist
The outside of central tube, wherein raw water runner is provided in reverse osmosis membrane assembly, be provided on raw water runner raw water water main inlet port,
Raw water assists water inlet and concentrated water outlet, and raw water water main inlet port is located at the side of reverse osmosis membrane assembly, raw water assist water inlet with
Concentrated water outlet is located at the other side of reverse osmosis membrane assembly, and raw water enters original from raw water water main inlet port and raw water auxiliary water inlet respectively
Water flow passage, concentrated water export outflow raw water runner from concentrated water, and the raw water flowed into from raw water auxiliary water inlet can be in raw water runner
Concentrated water is diluted.
Further, raw water water main inlet port is located on the membrane component cylindrical sides of reverse osmosis membrane assembly.
Further, raw water auxiliary water inlet and concentrated water outlet are located at the side of the close central tube of reverse osmosis membrane assembly.
Further, the raw water positioned at the side of the close central tube of reverse osmosis membrane assembly assists water inlet and concentrated water to export phase
To setting.
Further, the relationship of the Opening length of raw water auxiliary water inlet and raw water flow channel length are as follows: 0 < a≤m/2, wherein
A is the Opening length that raw water assists water inlet, and m is the length of raw water runner.
Further, the relationship of the Opening length and raw water flow channel length of concentrated water outlet are as follows: 0 < b≤m/2, wherein b is dense
The Opening length of water out, m are the length of raw water runner.
Further, the pass of the Opening length of raw water auxiliary water inlet, the Opening length of concentrated water outlet and raw water flow channel length
System are as follows: 0 < a=b≤m/2, wherein a is the Opening length that raw water assists water inlet, and b is the Opening length of concentrated water outlet, and m is
The length of raw water runner.
Further, the inflow at raw water water main inlet port is greater than the inflow of raw water auxiliary water inlet, to pass through raw water
The inflow of water main inlet port meets the water production requirement of filter core, assists the inflow of water inlet to meet in raw water runner by raw water
Concentrated water dilute require.
Further, reverse osmosis membrane assembly includes reverse osmosis membrane, pure water flow-guiding screen and raw water flow-guiding screen, reverse osmosis membrane and
It is formed with raw water runner between raw water flow-guiding screen, pure water runner, stream of pure water are formed between reverse osmosis membrane and pure water flow-guiding screen
Road is connected with central tube, and the raw water in raw water runner becomes pure water after passing through reverse osmosis membrane and enters in stream of pure water road.
A kind of anti-penetration water purifier, wherein including above-mentioned coiled reverse osmosis membrane filter core.
The advantages of coiled reverse osmosis membrane filter core of the invention and anti-penetration water purifier is: raw water is by membrane component cylindrical side
And one side end face in certain flow ratio enter raw water runner, concentrated water is discharged from another side end face, and pure water is by central manifold afflux
Out, the raw water runner of this membrane component is long, and crossflow velocity is more common, and membrane component is higher, meanwhile, a small amount of water inlet of a side end face exists
It does not influence that raw water flow field end pollution level can be reduced under the premise of water processed, effectively slows down the concentration polarization of film surface, delay
Film surface fouling, achievees the purpose that prolonging service life of filter elements.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of coiled reverse osmosis membrane filter core of the invention；
Fig. 2 is the structural schematic diagram of the raw water runner in the present invention.
Specific embodiment
In order to be better understood by the purpose of the present invention, structure and function, with reference to the accompanying drawing, to a kind of rolling of the invention
Reverse osmosis membrane filter element and anti-penetration water purifier do further detailed description.
As shown in Figure 1, coiled reverse osmosis membrane filter core of the invention includes central tube 10 and reverse osmosis membrane assembly 20, it is reverse osmosis
Membrane module 20 coats the outside of centrally disposed pipe 10, wherein reverse osmosis membrane assembly 20 includes reverse osmosis membrane 21, pure water water conservancy diversion
Net 22 and raw water flow-guiding screen 23, are formed with raw water runner 24, reverse osmosis membrane between reverse osmosis membrane 21 and raw water flow-guiding screen 23
Pure water runner 25 is formed between 21 and pure water flow-guiding screen 22, pure water runner 25 is connected with central tube 10, in raw water runner 24
Raw water pass through reverse osmosis membrane 21 after become pure water and enter stream of pure water road 25 in.
It should be noted that central tube 10, reverse osmosis membrane 21, pure water flow-guiding screen 22 and raw water flow-guiding screen 23 specific structure
Can refer to the conventional reverse osmosis membrane filter in this field, technology emphasis of the invention does not lie in this body structure of said elements, because
This is repeated no more.
Further, as shown in Fig. 2, being provided with original on raw water runner 24 between reverse osmosis membrane 21 and raw water flow-guiding screen 23
Water water main inlet port 26, raw water auxiliary water inlet 27 and concentrated water outlet 28, wherein raw water water main inlet port 26 is located at reverse osmosis membrane assembly
Side, raw water assist water inlet 27 and concentrated water outlet 28 be located at reverse osmosis membrane assembly the other sides, raw water is respectively from raw water master
Water inlet 26 and raw water auxiliary water inlet 27 enter raw water runner 24, and concentrated water is from 28 outflow raw water runner 24 of concentrated water outlet, from original
The raw water that water auxiliary water inlet 27 flows into can be diluted the concentrated water in raw water runner 24.
Specifically, in the present embodiment, raw water water main inlet port 26 is located at the membrane component cylindrical sides of reverse osmosis membrane assembly
On, raw water assists water inlet 27 and concentrated water outlet 28 positioned at the side of the close central tube 10 of reverse osmosis membrane assembly, and raw water is auxiliary
It helps water inlet 27 and concentrated water to export 28 to be oppositely arranged, that is, raw water auxiliary water inlet 27 and concentrated water outlet 28 are located at reverse osmosis
The effect at the both ends of the side of the close central tube 10 of permeable membrane component, raw water auxiliary water inlet 27 is to improve 24 end of raw water runner
Slough streamflow regime and mitigate 24 end contamination degree of raw water runner.
As a result, when coiled reverse osmosis membrane filter core duty water of the invention, raw water in preset flow ratio from raw water master into
The mouth of a river 26 and raw water auxiliary water inlet 27 flow into raw water runner 24, and raw water is under the effect of the pressure along raw water flow-guiding screen 23 from raw water
The raw water water main inlet port 26 of runner 24 is flowed toward concentrated water outlet 28, constantly has raw water through reverse osmosis membrane 21 in flow process
Produce pure water, pure water is flowed along pure water flow-guiding screen 22 to central tube 10, and aggregated and flow out, filtered raw water is constantly dense
Contracting forms high TDS value concentrated water in concentrated water outlet 28 and is discharged.
It further, is smooth in water flow in guarantee raw water runner 24, the inflow of the raw water water main inlet port 26 of raw water runner 24
It is far longer than the inflow of raw water auxiliary water inlet 27, wherein the inflow of raw water water main inlet port 26 needs to meet filter core and sets
The water production requirement under the rate of recovery is counted, as long as the inflow of raw water auxiliary water inlet 27, which meets, improves the dead of 24 end of raw water runner
Pool streamflow regime flows water flow toward export direction and mixes with the high TDS concentrated water of end, realizes dilution end concentrated water, drop
The effect of low diaphragm scaling tendency.
Further, inflow and outflow, rolling filter core are distinguished close to one end two sides of central tube 10 for realization raw water runner 24
Need to carry out end face part sealing, and close to 10 side of central tube there are the opening of certain distance, with formed raw water assist into
The mouth of a river 27 and concentrated water outlet 28.Wherein, as shown in Fig. 2, the Opening length of raw water auxiliary water inlet 27 is a, concentrated water outlet 28
Opening length is b, and the total length of raw water runner 24 is m, it is preferred that the Opening length a of raw water auxiliary water inlet 27, concentrated water go out
The relationship of the total length m of mouthfuls 28 Opening length b and raw water runner 24 is a=b, 0 < a≤m/2,0 < b≤m/2, certainly, on
The preferred design that relationship is common product is stated, can flexibly be set according to size, rate of recovery of filter core etc..
Coiled reverse osmosis membrane filter core of the invention is to change existing coiled reverse osmosis membrane filter core Inlet and outlet water mode, by end face
Water inlet and the mode that concentrated water, central tube go out pure water out become side and side end face water inlet, another side end face go out concentrated water, central tube
Pure water out, raw water enters raw water runner in certain flow ratio by membrane component cylindrical side and a side end face as a result, and concentrated water is from another
The discharge of one side end face, pure water are flowed out by central manifold collection, and the raw water runner of this membrane component is long, the more common membrane component of crossflow velocity
It is higher, meanwhile, a small amount of water inlet of a side end face can reduce raw water flow field end pollution level under the premise of not influencing water processed,
The concentration polarization for effectively slowing down film surface, delays film surface fouling, achievees the purpose that prolonging service life of filter elements.
The present invention is further described by specific embodiment above, it should be understood that, here specifically
Description, should not be construed as the restriction for the essence of the present invention with range, and one of ordinary skilled in the art is reading this explanation
The various modifications made after book to above-described embodiment belong to the range that the present invention is protected.
Claims (10)
1. a kind of coiled reverse osmosis membrane filter core, including central tube and reverse osmosis membrane assembly, reverse osmosis membrane assembly cladding is arranged in
The outside of heart pipe, which is characterized in that be provided with raw water runner in reverse osmosis membrane assembly, the main water inlet of raw water is provided on raw water runner
Mouth, raw water auxiliary water inlet and concentrated water outlet, raw water water main inlet port are located at the side of reverse osmosis membrane assembly, and raw water assists water inlet
It is located at the other side of reverse osmosis membrane assembly with concentrated water outlet, raw water enters from raw water water main inlet port and raw water auxiliary water inlet respectively
Raw water runner, concentrated water export outflow raw water runner from concentrated water, and the raw water flowed into from raw water auxiliary water inlet can be in raw water runner
Concentrated water be diluted.
2. coiled reverse osmosis membrane filter core according to claim 1, which is characterized in that raw water water main inlet port is located at reverse osmosis membrane
On the membrane component cylindrical sides of component.
3. coiled reverse osmosis membrane filter core according to claim 1 or 2, which is characterized in that raw water assists water inlet and concentrated water
Outlet is located at the side of the close central tube of reverse osmosis membrane assembly.
4. coiled reverse osmosis membrane filter core according to claim 3, which is characterized in that positioned at reverse osmosis membrane assembly in
The raw water auxiliary water inlet of the side of heart pipe and concentrated water outlet are oppositely arranged.
5. coiled reverse osmosis membrane filter core according to claim 1, which is characterized in that the Opening length of raw water auxiliary water inlet
With the relationship of raw water flow channel length are as follows:
0 < a≤m/2
Wherein, a is the Opening length that raw water assists water inlet, and m is the length of raw water runner.
6. coiled reverse osmosis membrane filter core according to claim 1 or 5, which is characterized in that concentrated water outlet Opening length with
The relationship of raw water flow channel length are as follows:
0 < b≤m/2
Wherein, b is the Opening length of concentrated water outlet, and m is the length of raw water runner.
7. coiled reverse osmosis membrane filter core according to claim 1, which is characterized in that raw water assists the opening of water inlet long
The relationship of degree, the Opening length of concentrated water outlet and raw water flow channel length are as follows:
0 < a=b≤m/2
Wherein, a is the Opening length that raw water assists water inlet, and b is the Opening length of concentrated water outlet, and m is the length of raw water runner.
8. coiled reverse osmosis membrane filter core according to claim 1, which is characterized in that the inflow at raw water water main inlet port is big
Inflow in raw water auxiliary water inlet is met the water production requirement of filter core with the inflow by raw water water main inlet port, led to
Crossing raw water assists the inflow of water inlet to meet the concentrated water dilution requirement in raw water runner.
9. coiled reverse osmosis membrane filter core according to claim 1, which is characterized in that reverse osmosis membrane assembly includes reverse osmosis membrane
Piece, pure water flow-guiding screen and raw water flow-guiding screen, are formed with raw water runner, reverse osmosis membrane between reverse osmosis membrane and raw water flow-guiding screen
Pure water runner is formed between pure water flow-guiding screen, pure water runner is connected with central tube, and the raw water in raw water runner passes through anti-
Become pure water after infiltration diaphragm and enters in stream of pure water road.
10. a kind of anti-penetration water purifier, which is characterized in that filtered including coiled reverse osmosis membrane described in any of the above-described claim
Core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811209545.8A CN109179579A (en) | 2018-10-17 | 2018-10-17 | Roll type reverse osmosis membrane filter element and reverse osmosis water purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811209545.8A CN109179579A (en) | 2018-10-17 | 2018-10-17 | Roll type reverse osmosis membrane filter element and reverse osmosis water purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109179579A true CN109179579A (en) | 2019-01-11 |
Family
ID=64945162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811209545.8A Pending CN109179579A (en) | 2018-10-17 | 2018-10-17 | Roll type reverse osmosis membrane filter element and reverse osmosis water purifier |
Country Status (1)
| Country | Link |
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| CN (1) | CN109179579A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109569307A (en) * | 2019-01-28 | 2019-04-05 | 珠海格力电器股份有限公司 | Reverse osmosis membrane washing and mixed washing control method thereof and water purifier washing system |
| CN109569303A (en) * | 2019-01-24 | 2019-04-05 | 珠海格力电器股份有限公司 | Roll type reverse osmosis membrane element, water purifier and water production control method of water purifier |
| CN109569306A (en) * | 2019-01-23 | 2019-04-05 | 珠海格力电器股份有限公司 | Reverse osmosis membrane flushing control method and reverse osmosis membrane flushing system |
| CN109647215A (en) * | 2019-01-22 | 2019-04-19 | 浙江沁园水处理科技有限公司 | A kind of diaphragm structure of RO membrane filter |
| CN110467240A (en) * | 2019-09-17 | 2019-11-19 | 浙江朗诗德健康饮水设备股份有限公司 | A kind of reverse osmosis filter core of lateral flow type and water purifier |
| CN110508146A (en) * | 2019-09-20 | 2019-11-29 | 珠海格力电器股份有限公司 | Reverse osmosis membrane filter core and purifier |
| CN115818784A (en) * | 2022-11-22 | 2023-03-21 | 佛山市顺德区美的饮水机制造有限公司 | Filtration module and water purification device |
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| RU48807U1 (en) * | 2005-04-08 | 2005-11-10 | Общество с ограниченной ответственностью "Экофил" | MEMBRANE FILTERING ELEMENT OF ROLL TYPE |
| 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 |
| CN209098257U (en) * | 2018-10-17 | 2019-07-12 | 珠海格力电器股份有限公司 | Roll type reverse osmosis membrane filter element and reverse osmosis water purifier |
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2018
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| RU48807U1 (en) * | 2005-04-08 | 2005-11-10 | Общество с ограниченной ответственностью "Экофил" | MEMBRANE FILTERING ELEMENT OF ROLL TYPE |
| 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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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109647215A (en) * | 2019-01-22 | 2019-04-19 | 浙江沁园水处理科技有限公司 | A kind of diaphragm structure of RO membrane filter |
| CN109569306A (en) * | 2019-01-23 | 2019-04-05 | 珠海格力电器股份有限公司 | Reverse osmosis membrane flushing control method and reverse osmosis membrane flushing system |
| CN109569303A (en) * | 2019-01-24 | 2019-04-05 | 珠海格力电器股份有限公司 | Roll type reverse osmosis membrane element, water purifier and water production control method of water purifier |
| CN109569307A (en) * | 2019-01-28 | 2019-04-05 | 珠海格力电器股份有限公司 | Reverse osmosis membrane washing and mixed washing control method thereof and water purifier washing system |
| CN109569307B (en) * | 2019-01-28 | 2023-10-03 | 珠海格力电器股份有限公司 | Reverse osmosis membrane flushing and mixed flushing control method and water purifier flushing system |
| CN110467240A (en) * | 2019-09-17 | 2019-11-19 | 浙江朗诗德健康饮水设备股份有限公司 | A kind of reverse osmosis filter core of lateral flow type and water purifier |
| CN110467240B (en) * | 2019-09-17 | 2024-03-15 | 浙江朗诗德健康饮水设备股份有限公司 | Side-flow reverse osmosis filter element and water purifier |
| CN110508146A (en) * | 2019-09-20 | 2019-11-29 | 珠海格力电器股份有限公司 | Reverse osmosis membrane filter core and purifier |
| CN115818784A (en) * | 2022-11-22 | 2023-03-21 | 佛山市顺德区美的饮水机制造有限公司 | Filtration module and water purification device |
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