CN215138660U - Cleaning system and self-cleaning water purifier - Google Patents
Cleaning system and self-cleaning water purifier Download PDFInfo
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- CN215138660U CN215138660U CN202120898244.1U CN202120898244U CN215138660U CN 215138660 U CN215138660 U CN 215138660U CN 202120898244 U CN202120898244 U CN 202120898244U CN 215138660 U CN215138660 U CN 215138660U
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Abstract
The application discloses cleaning system and self-cleaning water purifier, this cleaning system includes: the cleaning assembly is connected with the filter element assembly through a pipeline and comprises an acidic cleaning part; the acidic cleaning part is used for converting input raw water into acidic water so as to clean the filter element assembly through the acidic water. This cleaning system is owing to set up acid cleaning member, can take place neutralization reaction with the incrustation scale in the filter element subassembly automatically, and then washes impurity such as the incrustation scale on filter element subassembly surface, prolongs the live time of filter element subassembly, and then has reduced the use cost of water purifier, has increased and has washd the flexibility.
Description
Technical Field
The utility model relates to a water purifier technical field, concretely relates to cleaning system and self-cleaning water purifier.
Background
Along with the worsening of the environment, the cleanliness factor of water resource reduces gradually, and a lot of municipal water need to purify the water through handling and can reach the service standard to along with the improvement of standard of living, people also more and more pay more attention to the healthy problem of drinking water, more and more families purify quality of water through purchasing the water purifier.
At present, traditional domestic water purifier can filter the incrustation scale that calcium carbonate and magnesium hydrate etc. in the running water can form for a long time because physical characteristic through Reverse Osmosis membrane (RO membrane is called for short for Reverse Osmosis) filter core, after water purifier work a period, the core hole of RO membrane filter core can be blockked up by impurity, lead to filter core life to reduce, can disassemble the filter core among the correlation technique, and adopt the solid organic acid cleaner of high solubility to wash the incrustation scale, but this method need frequently disassemble the filter core and lead to the inconvenient operation, the cost is higher and wash the flexibility poor.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a cleaning system and a self-cleaning water purifier, which can automatically wash away impurities such as scale on the surface of the filter element assembly, and prolong the service life of the filter element assembly.
In a first aspect, an embodiment of the application provides a cleaning system, including filter element group spare and washing subassembly, wash the subassembly pass through the pipeline with filter element group spare is connected, wash the subassembly including acidic washing piece, acidic washing piece is used for turning into the raw water of input acidic water, with pass through acidic water is right filter element group spare washs.
In another embodiment of the present application, the acidic cleaning member is a citric acid filter element or an acetic acid filter element.
In another embodiment of the present application, the filter element assembly includes a primary filter element assembly and a secondary filter element assembly sequentially arranged along a water flow direction, and the pipeline includes a first pipeline, a second pipeline and a third pipeline;
the water outlet end of the primary filter element assembly is connected with the water inlet end of the acid cleaning element through the first pipeline, the water outlet end of the acid cleaning element is connected with the first water inlet end of the secondary filter element assembly through the second pipeline, and the water outlet end of the primary filter element assembly is connected with the second water inlet end of the secondary filter element assembly through the third pipeline.
In another embodiment of the present application, the filter element assembly further comprises a rear activated carbon filter element, and the pipeline further comprises a fourth pipeline and a fifth pipeline;
the first water outlet end of the secondary filter element assembly is connected with the water inlet end of the rear active carbon filter element through the fourth pipeline, and the second water outlet end of the secondary filter element assembly is connected with the waste water end through the fifth pipeline.
In another embodiment of the present application, the first pipeline is provided with a first control valve, the second pipeline is provided with a second control valve, and the fifth pipeline is provided with a third control valve.
In another embodiment of this application, cleaning system still includes the main control unit, the main control unit is used for when control first control valve, second control valve are in the open mode, when third control valve is in the closed condition, the former water of the play water end output of elementary filter element group spare passes through acid cleaning element turns into sour water, with through sour water is right secondary filter element group spare washs.
In another embodiment of the present application, the main control unit is further configured to control the third control valve to open to discharge the generated wastewater through the wastewater end when it is detected that the secondary filter element assembly is cleaned by the acidic water for a preset time.
In another embodiment of this application, the main control unit is still used for when control first control valve is in the closed condition, and when third control valve was in the open mode, the former water that the play water end of elementary filter element group exported loops through secondary filter element group rearmounted active carbon filter core filters output pure water to pass through the waste water that will produce the waste water end is discharged.
In another embodiment of this application, the play water end of elementary filter element group spare is provided with the booster pump, the booster pump is used for right the raw water of the play water end output of elementary filter element group spare carries out the pressure boost, with will the raw water passes through the third pipeline input extremely secondary filter element group spare or through first pipeline input extremely acid cleaning member.
In another embodiment of the present application, a first control switch is disposed on the fourth pipeline, and a second control switch is disposed on the fifth pipeline, so that when the first control switch is in an on state, the generated wastewater is controlled to be discharged; and when the second control switch is in an open state, controlling the generated pure water to be discharged.
In a second aspect, embodiments of the present application provide a self-cleaning water purifier including the cleaning system of the first aspect.
In summary, the cleaning system and the self-cleaning water purifier provided in the embodiments of the present application, the cleaning system includes a filter element assembly and a cleaning assembly, the cleaning assembly is connected with the filter element assembly through a pipeline, the cleaning assembly includes an acidic cleaning member, and the acidic cleaning member is used for converting input raw water into acidic water so as to clean the filter element assembly through the acidic water. This cleaning system is owing to set up acid cleaning member, can take place neutralization reaction with the incrustation scale in the filter element subassembly automatically, and then washes impurity such as the incrustation scale on filter element subassembly surface, prolongs the live time of filter element subassembly, and then has reduced the use cost of water purifier, has increased and has washd the flexibility.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a schematic structural diagram of a cleaning system according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a cleaning system according to another embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a cleaning system according to another embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a cleaning system according to another embodiment of the present disclosure;
description of reference numerals:
10-filter element assembly, 11-primary filter element assembly, 12-secondary filter element assembly, 13-rear active carbon filter element, 14-first pipeline, 15-second pipeline, 16-third pipeline, 17-fourth pipeline, 18-fifth pipeline, 19-waste water end, 20-cleaning assembly, 111-PP cotton filter element, 112-front active carbon filter element, 121-first water inlet end, 122-second water inlet end, 123-first water outlet end, 124-second water outlet end, 141-first control valve, 142-booster pump, 151-second control valve, 181-third control valve, 201-acid cleaning piece.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
It can be understood, along with user's standard of living's continuous improvement, also attach more and more importance to the drinking water problem, water purification unit has been used by more and more family, what on the market at present purified water is effectual can all filter the running water through the RO membrane filter core, when the RO membrane in the running water gets into the water purifier, exert certain pressure to water and make the hydrone that comes from in water and the mineral matter element of ionic state pass through the RO membrane, and the macromolecule inorganic salt from the aquatic includes heavy metal ion, the organic matter, unable RO membrane that is less through the membrane hole such as bacterium and virus, thereby realize the water purification effect. Wherein, after the water purifier used a period, the core hole of RO membrane filter core can be blockked up by impurity, can disassemble the filter core among the correlation technique to adopt the solid organic acid cleaner of high solubility to wash the incrustation scale, but this method need frequently disassemble the filter core and lead to the inconvenient operation, and the cost is higher and wash the flexibility poor.
Based on above-mentioned defect, cleaning system and self-cleaning water purifier that this application provided, including filter element group spare and washing subassembly, wash the subassembly and pass through the pipeline and be connected with filter element group spare, wash the subassembly and include acidic cleaning member, acidic cleaning member is used for turning into the raw water of input acidic water to wash filter element group spare through acidic water. Compared with the prior art, this cleaning system is owing to set up acid cleaning member, can take place neutralization reaction with the incrustation scale in the filter element group spare automatically, and then washes impurity such as incrustation scale on filter element group spare surface, prolongs the live time of filter element group spare, and then has reduced the use cost of water purifier, has increased and has washd the flexibility.
The self-cleaning water purifier provided by the embodiment can be applied to the scene of the purification treatment of household water, not only can realize the purification of tap water, but also can clean the filter element through an internal water path, thereby ensuring the safety of drinking water of a user.
For convenience of understanding and explanation, the cleaning system and the self-cleaning water purifier provided by the embodiment of the present application will be described in detail below with reference to fig. 1 to 4.
Fig. 1 is a schematic structural diagram of a cleaning system according to an embodiment of the present application, and as shown in fig. 1, the cleaning system includes a filter element assembly 10 and a cleaning assembly 20, the cleaning assembly 20 is connected to the filter element assembly 10 through a pipeline, the cleaning assembly 20 includes an acidic cleaning component, and the acidic cleaning component is configured to convert input raw water into acidic water so as to clean the filter element assembly 10 through the acidic water.
In this embodiment, the filter element assembly 10 is used for filtering raw water to generate pure water, and the cleaning assembly 20 is an acidic cleaning member, and may include a cleaning filter element capable of generating acidic water, and the raw water is converted into acidic water after passing through the cleaning filter element.
Optionally, the acidic cleaning element may be a citric acid filter element, and may also be an acetic acid filter element for converting raw water into acidic water.
It should be noted that, after the water purifier is used for a period of time, a large amount of impurities such as scale are generated in the core hole inside the filter element assembly, and the scale is analyzed to be mainly composed of Ca2+And Mg2+Constitute, in order to clear away the incrustation scale, can set up acid cleaning member, including food level citric acid in this acid cleaning member, produce sour water when the acid cleaning member of raw water flow through to take place acid-base neutralization reaction with incrustation scale in the filter element subassembly, make the incrustation scale decompose into carbon dioxide and water, and then realize the washing to the filter element subassembly.
Referring to fig. 2, the filter element assembly 10 includes a primary filter element assembly 11 and a secondary filter element assembly 12 sequentially arranged along a water flowing direction, and the pipes include a first pipe 14, a second pipe 15 and a third pipe 16. The water outlet end of the primary filter element assembly 11 is connected with the water inlet end of the acidic cleaning part 201 through the first pipeline 14, the water outlet end of the acidic cleaning part 201 is connected with the first water inlet end 121 of the secondary filter element assembly 12 through the second pipeline 15, and the water outlet end of the primary filter element assembly 12 is connected with the second water inlet end 122 of the secondary filter element assembly 12 through the third pipeline 16.
Optionally, the filter element assembly 10 further includes a rear activated carbon filter element 13, and the pipeline further includes a fourth pipeline 17 and a fifth pipeline 18; the first water outlet end 123 of the secondary filter element assembly 12 is connected with the water inlet end of the rear activated carbon filter element 13 through the fourth pipeline 17, and the second water outlet end 124 of the secondary filter element assembly 12 is connected with the waste water end 19 through the fifth pipeline 18.
As shown in fig. 3, the primary filter element assembly 11 includes a PP cotton filter element 111 and a front activated carbon filter element 112 arranged along the flow direction of water purification, and the secondary filter element assembly 12 may include a reverse osmosis RO membrane filter element, and in the practical application process, the secondary filter element assembly 12 may further include an ultrafiltration membrane filter element, wherein the ultrafiltration membrane filter element and the reverse osmosis RO membrane filter element may be arranged along the flow direction of water purification, and may further include other tubular filter elements.
It should be noted that, the filter precision of the PP cotton filter element is not high, and the PP cotton filter element is used for primary filtration of water, and mainly filters large particle impurities in raw water, and usually impurities with a diameter larger than 5um, such as silt, suspended matters and the like. The preposed active carbon filter element is used for secondary filtration of water and is used for absorbing harmful chemical substances, abnormal color and odor and the like in the water. In general, the smaller the volume of the activated carbon, the larger the total area will be, and the greater the adsorption capacity. The front active carbon filter element is used for absorbing odor, residual chlorine and the like, and the rear active carbon filter element is used for improving the taste and removing the odor.
It can be understood that the RO membrane, also called reverse osmosis membrane, is a membrane separation and filtration technique using pressure difference as power, and its pore size is as small as nano level, and under a certain pressure, H is2O molecules pass through the RO membrane, and inorganic salts and heavy metals in the source water are separatedImpurities such as seeds, organic matter, colloids, bacteria, viruses, etc. cannot permeate the RO membrane, thereby separating the permeable pure water from the impermeable concentrated water. The filtration precision of the reverse osmosis RO membrane filter element is 0.001 micron, and except water molecules, any impurities can not pass through. The reverse osmosis has high desalination rate, and can effectively remove microorganisms such as bacteria, organic matters, inorganic matters such as metal elements and the like.
Optionally, the first pipeline 14 is provided with a first control valve 141, the second pipeline 15 is provided with a second control valve 151, and the fifth pipeline 18 is provided with a third control valve 181.
The first control valve, the second control valve, and the third control valve may be electric control valves or pneumatic control valves. Wherein the second control valve can be a one-way valve, which can enable the flow direction of the acidic water to only flow from the acidic cleaning part to the RO membrane reverse osmosis filter element. The first pipeline, the second pipeline, the third pipeline, the fourth pipeline and the fifth pipeline can be made of PE materials or PVC materials, and the PE materials have the advantages of being high in strength, high-temperature resistant, corrosion resistant, non-toxic, wear resistant and the like.
In this embodiment, the self-cleaning water purifier further includes a main control unit, and the main control unit is configured to, when the first control valve 141 and the second control valve 151 are controlled to be in an open state and the third control valve 181 is controlled to be in a closed state, convert raw water output from the water outlet end of the primary filter element assembly 11 into acidic water through the acidic cleaning element 201, so as to clean the secondary filter element assembly 12, that is, the RO membrane reverse osmosis filter element, with the acidic water.
The water outlet end of the primary filter element assembly 11 is provided with a booster pump 142, and the booster pump 142 is used for boosting raw water output from the water outlet end of the primary filter element assembly 11 so as to input the raw water to the secondary filter element assembly 12 through the third pipeline 16 or input the raw water to the acidic cleaning component 201 through the first pipeline 14.
A first control switch is arranged on the fourth pipeline 17, a second control switch is arranged on the fifth pipeline 18, and when the first control switch is in an on state, the generated wastewater is controlled to be discharged; when the second control switch is in an on state, the generated pure water is controlled to be discharged.
It will be appreciated that the first control switch is provided at the waste water end 19 of the fourth line 18 to control the discharge of waste water. The second control switch can be arranged at the water outlet end of the rear activated carbon filter element 13 on the fifth pipeline 19, and can control the output of pure water.
The main control unit is further configured to, when the first control valve 141 is controlled to be in a closed state and the third control valve 181 is controlled to be in an open state, filter raw water output from the water outlet end of the primary filter element assembly 11 sequentially through the secondary filter element assembly 12 and the rear activated carbon filter element 13 to output pure water, and discharge generated wastewater through the wastewater end 19.
In addition, the main control unit is further configured to control the third control valve 181 to open when it is detected that the secondary filter element assembly 12 is cleaned by the acidic water for a preset time, so that the generated wastewater is discharged through the wastewater end.
Specifically, referring to fig. 4, the cleaning system may include two operation modes, one is a pure water output mode, and the other is a cleaning mode, when operating in the pure water output mode, the main control unit controls the booster pump to open, and controls the first control valve (electric valve 1) to be in a closed state, and the third control valve (electric valve 2) to be in an open state, at this time, tap water passes through the PP cotton filter element and the pre-active filter element in the primary filter element assembly in sequence for primary filtration, and then flows from the water outlet end of the pre-active filter element to the RO membrane reverse osmosis filter element in the secondary filter element assembly through the third pipeline for secondary filtration, so that the water after secondary filtration flows to the post-active carbon filter element for secondary filtration, thereby outputting pure water and generating wastewater, the second control switch (pure water tap) may be opened to control pure water output, and by opening the first control switch (wastewater tap), controlling the discharge of the wastewater from the wastewater end.
Further, when the cleaning system is operated for a period of time, for example, the cleaning system is operated for one month to enter a cleaning mode, the main control unit controls the booster pump to be opened, and controls the first control valve (electric valve 1) and the second control valve (one-way valve) to be in an open state, tap water sequentially passes through the PP cotton filter element and the pre-positioned active filter element in the primary filter element assembly, and then flows from the water outlet end of the pre-positioned active filter element to the acid cleaning element (citric acid filter element) through the first pipeline, so that the citric acid mixed in the raw water is converted into acidic water and flows to the RO membrane reverse osmosis filter element, at this time, the second control switch can be closed, the third control valve (electric valve 2) is closed, water production is stopped after a first preset time for water production, for example, 15 seconds, and then the electric valve 1 is controlled to be closed, so that the acidic water mixed in the citric acid and the RO membrane reverse osmosis filter element undergo an acid-base neutralization reaction, and then make the incrustation scale of RO membrane reverse osmosis filter core decompose into carbon dioxide and water, when detecting that acid water washs RO membrane reverse osmosis filter core to the second when predetermineeing the time, this second is predetermineeing the time and can be 20 minutes for example, can control motorised valve 2 and open to the waste water that will produce passes through waste water end and discharges, thereby makes carbon dioxide, water, the direct motorised valve 2 outflow of waste material that produces, avoids filter core and rear end water route to block up.
Further, after the cleaning mode, the cleaning of the citric acid residues is required, and the cleaning of the citric acid residues may include: the electric valve 1 is controlled to be closed through the main control unit, the electric valve 2 is controlled to be opened, water output from the water outlet end of the primary filter element assembly is enabled to be flushed to third preset time through a third pipeline by opening the booster pump to make water, the third preset time can be 5 minutes, the flushed citric acid is enabled to flow out from the waste water end through a fifth pipeline, and therefore the cleaning operation is completed.
The cleaning system that provides in the embodiment of this application includes filter element group spare and washs the subassembly, washs the subassembly and passes through the pipeline and be connected with filter element group spare, washs the subassembly and includes acidic cleaning member, and acidic cleaning member is used for turning into the raw water of input acidic water to wash filter element group spare through acidic water. This self-cleaning water purifier is owing to set up acid cleaning member, can take place neutralization reaction with the incrustation scale in the filter element group spare automatically, and then washes impurity such as the incrustation scale on filter element group spare surface, prolongs the live time of filter element group spare, and then has reduced the use cost of water purifier, has increased and has washd the flexibility.
Further, the cleaning system that this application provided can effectively solve the trade water purifier and insert the play water that leads to not up to standard because of quality of water to and the filter core desalination scheduling problem that does not up to standard, can prolong the life of filter core.
On the other hand, the application also discloses a self-cleaning water purifier, and the self-cleaning water purifier provided by the embodiment of the application can comprise a cleaning system and a shell covering the outer side of the cleaning system.
This cleaning system includes filter element group spare and washs the subassembly, washs the subassembly and passes through the pipeline and be connected with filter element group spare, washs the subassembly and includes acidic cleaning member, and acidic cleaning member is used for turning into the raw water of input acidic water to wash filter element group spare through acidic water.
The shell can be made of stainless steel or plastic and is used for protecting a cleaning system in the water purifier.
In addition, except above-mentioned self-cleaning water purifier, above-mentioned cleaning system can also be applied to other water purification products, for example any product that needs water purification treatment, through setting up cleaning system, can reduce the macromolecule impurity that gets into in the RO membrane reverse osmosis filter core, keeps the water purification function of system, stabilizes the pure water outlet yield, effectively improves the security of water purification protection product.
The embodiment of the application provides a self-cleaning water purifier, including foretell cleaning system, this cleaning system includes filter element group spare and washs the subassembly, washs the subassembly and passes through the pipeline and be connected with filter element group spare, washs the subassembly and includes acidic cleaning member, and acidic cleaning member is used for turning into the raw water of input into acid water to wash filter element group spare through acid water. This self-cleaning water purifier is owing to set up acid cleaning member, can take place neutralization reaction with the incrustation scale in the filter element group spare automatically, and then washes impurity such as the incrustation scale on filter element group spare surface, prolongs the live time of filter element group spare, and then has reduced the use cost of water purifier, has increased and has washd the flexibility.
In the present invention, the directions or positional relationships indicated by "upper", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (11)
1. A cleaning system is characterized by comprising a filter element assembly and a cleaning assembly, wherein the cleaning assembly is connected with the filter element assembly through a pipeline and comprises an acidic cleaning part; the acidic cleaning part is used for converting input raw water into acidic water so as to clean the filter element assembly through the acidic water.
2. The cleaning system of claim 1, wherein the acidic cleaning element is a citric acid filter element or an acetic acid filter element.
3. The cleaning system of claim 1, wherein the filter element assembly comprises a primary filter element assembly and a secondary filter element assembly arranged in series along a water flow direction, the conduits comprising a first conduit, a second conduit, and a third conduit;
the water outlet end of the primary filter element assembly is connected with the water inlet end of the acid cleaning element through the first pipeline, the water outlet end of the acid cleaning element is connected with the first water inlet end of the secondary filter element assembly through the second pipeline, and the water outlet end of the primary filter element assembly is connected with the second water inlet end of the secondary filter element assembly through the third pipeline.
4. The cleaning system of claim 3, wherein the filter element assembly further comprises a rear activated carbon filter element, the conduits further comprising a fourth conduit and a fifth conduit;
the first water outlet end of the secondary filter element assembly is connected with the water inlet end of the rear active carbon filter element through the fourth pipeline, and the second water outlet end of the secondary filter element assembly is connected with the waste water end through the fifth pipeline.
5. The cleaning system of claim 4, wherein the first line has a first control valve disposed thereon, the second line has a second control valve disposed thereon, and the fifth line has a third control valve disposed thereon.
6. The cleaning system as claimed in claim 5, further comprising a main control unit, wherein the main control unit is configured to control the first control valve, the second control valve and the third control valve to be in an open state and a closed state, and raw water output from the water outlet end of the primary filter element assembly is converted into acidic water by the acidic cleaning member, so as to clean the secondary filter element assembly by the acidic water.
7. The cleaning system of claim 5, wherein the main control unit is further configured to control the third control valve to open to discharge the generated wastewater through the wastewater end when it is detected that the secondary filter element assembly is cleaned by the acidic water for a preset time.
8. The cleaning system of claim 5, wherein the main control unit is further configured to, when the first control valve is controlled to be in a closed state and the third control valve is controlled to be in an open state, filter raw water output from the water outlet end of the primary filter element assembly sequentially through the secondary filter element assembly and the rear activated carbon filter element to output pure water, and discharge generated wastewater through the wastewater end.
9. The cleaning system of claim 3, wherein the water outlet end of the primary filter element assembly is provided with a booster pump, and the booster pump is used for boosting raw water output from the water outlet end of the primary filter element assembly so as to input the raw water to the secondary filter element assembly through the third pipeline or input the raw water to the acid cleaning member through the first pipeline.
10. The cleaning system of claim 4, wherein a first control switch is arranged on the fourth pipeline, a second control switch is arranged on the fifth pipeline, and when the first control switch is in an open state, the generated wastewater is controlled to be discharged; and when the second control switch is in an open state, controlling the generated pure water to be discharged.
11. A self-cleaning water purifier, characterized by comprising the cleaning system according to any one of claims 1 to 10.
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| CN202120898244.1U CN215138660U (en) | 2021-04-28 | 2021-04-28 | Cleaning system and self-cleaning water purifier |
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| CN202120898244.1U CN215138660U (en) | 2021-04-28 | 2021-04-28 | Cleaning system and self-cleaning water purifier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114604984A (en) * | 2022-01-21 | 2022-06-10 | 佛山市美的清湖净水设备有限公司 | Water purification system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114604984A (en) * | 2022-01-21 | 2022-06-10 | 佛山市美的清湖净水设备有限公司 | Water purification system |
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