CN219194714U - Front ultrafiltration back flush system of full house water purification - Google Patents
Front ultrafiltration back flush system of full house water purification Download PDFInfo
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- CN219194714U CN219194714U CN202221074739.3U CN202221074739U CN219194714U CN 219194714 U CN219194714 U CN 219194714U CN 202221074739 U CN202221074739 U CN 202221074739U CN 219194714 U CN219194714 U CN 219194714U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Abstract
The front ultrafiltration backwashing system for full-house water purification comprises a water inlet system, an ultrafiltration filter element, a backwashing system and a drainage system which are sequentially connected, wherein the ultrafiltration filter element is provided with a water purification end, the water purification end is connected with the backwashing system, the backwashing system is provided with a backwashing end and a flushing assembly connected with the backwashing end, and the flushing assembly is used for backwashing the ultrafiltration filter element. According to the utility model, pure water generated in the water purification process is conveyed into the pure water storage container, and the surface of the ultrafiltration filter element is washed through the back flushing end on the back flushing system, and the washed waste water is discharged through the drainage system, so that the purpose of removing impurities adhered to the ultrafiltration filter element is achieved, the service life of the ultrafiltration filter element is prolonged, frequent replacement of the ultrafiltration filter element is avoided, and the daily use of a user is greatly facilitated.
Description
Technical Field
The utility model relates to the technical field of water purification systems, in particular to a front ultrafiltration backwashing system for full-house water purification.
Background
With the increasing attention of people to water health, the water purifying equipment is gradually used by vast users. The existing water purification system has the following water purification flow: the ultrafiltration device of the prior art water purification system generally only has a normal positive flushing function, only can remove part of impurities adhered to the ultrafiltration device, and usually needs to be replaced after about 3-6 months, frequently purchases a filter element and needs to be replaced by a professional, thus bringing a great deal of inconvenience to users and increasing the use cost.
Disclosure of Invention
Aiming at the technical problems that the conventional positive flushing and cleaning impurities of the ultrafiltration filter element in the prior art are not thorough, the filter element is required to be purchased frequently and the filter element is required to be replaced by a professional, and the use cost is increased, the technical scheme adopted for solving the technical problems is as follows:
the front ultrafiltration backwashing system for full-house water purification comprises a water inlet system, an ultrafiltration filter element, a backwashing system and a drainage system which are sequentially connected, wherein the ultrafiltration filter element is provided with a water purification end, the water purification end is connected with the backwashing system, the backwashing system is provided with a backwashing end and a flushing assembly connected with the backwashing end, and the flushing assembly is used for backwashing the ultrafiltration filter element.
Further, the flushing assembly comprises a flushing end connected with the back flushing end, and the flushing end is sequentially provided with a pure water storage container, a variable frequency pump, a back flushing electromagnetic valve and a one-way valve.
Further, the flushing assembly further comprises a water system connected with the flushing end, the water system is arranged between the variable frequency pump and the back flushing electromagnetic valve, and the water system is provided with a water electromagnetic valve.
Further, the back flushing system also comprises a water making system with one end connected with the water purifying end, and the other end of the water making system is connected with the pure water storage container.
Further, the water preparation system is provided with a water preparation system electromagnetic valve, a first activated carbon filter element, a booster pump and a reverse osmosis filter element in sequence, and the back flushing end is arranged between the water preparation system electromagnetic valve and the water purification end.
Further, the water production system further comprises a booster pump arranged between the first activated carbon filter element and the reverse osmosis filter element.
Further, the water making system further comprises a second activated carbon filter element disposed between the reverse osmosis filter element and the pure water storage container.
Further, the water production system further comprises a concentrated water connection end arranged between the drainage system and the reverse osmosis filter element, and the concentrated water connection end is sequentially provided with an adjustable wastewater ratio electromagnetic valve and a check valve.
Further, the drainage system is connected with the ultrafiltration filter element and is provided with a flushing electromagnetic valve.
Further, the water inlet system is sequentially provided with a self-priming valve, a water inlet ball valve and a pre-filtering device, a pre-filtering connecting end is arranged between the water drainage system and the pre-filtering device, and a flushing ball valve is arranged at the pre-filtering connecting end.
The beneficial effects of the utility model are as follows:
1. according to the utility model, pure water generated in the water purification process is conveyed into the pure water storage container, the surface of the ultrafiltration filter element is washed through the back washing end on the back washing system, the washed waste water is discharged through the drainage system, and the ultrafiltration filter element is washed through back washing on the basis of normal forward washing, so that the purpose of removing impurities adhered to the ultrafiltration filter element is achieved, the service life of the ultrafiltration filter element is prolonged, frequent replacement of the ultrafiltration filter element is avoided, and the daily use of a user is greatly facilitated;
2. according to the utility model, pure water is stored in the normal water production process, after the water production is stopped, the stored pure water is utilized to flush the surface of the ultrafiltration filter element through the back flushing end, pulse flushing is realized by controlling the starting and stopping of the flushing electromagnetic valve, and the switching process of water production and back flushing is fully automatic without manual operation, so that the use experience of customers is greatly facilitated.
In the figure: 1. the system comprises a water inlet system, 2, an ultrafiltration filter element, 3, a back flushing system, 4, a drainage system, 11, a self-priming valve, 12, a water inlet ball valve, 13, a pre-filtering device, 21, a water purifying end, 31, a back flushing end, 32, a flushing assembly, 33, a water producing system, 41, a pre-filtering connection end, 42, a flushing solenoid valve, 321, a flushing end, 322, a water producing system, 331, a water producing system solenoid valve, 332, a first activated carbon filter element, 333, a booster pump, 334, a reverse osmosis filter element, 335, a second activated carbon filter element, 336, a first TDS detector, 337, a concentrated water connection end, 338, a second TDS detector, 411, a flushing ball valve, 3211, a pure water storage container, 3212, a variable frequency pump, 3213, a back flushing solenoid valve, 3214, a one-way valve, 3221, 3222, a flowmeter, 3371, an adjustable waste water ratio solenoid valve, 3372, a check valve, 32111, a first pure water level detector, 32112, a second pure water level detector, 32113, an ozone generator, 38 32115, and a pure water storage container.
The utility model will be further described with reference to the drawings and detailed description.
Drawings
FIG. 1 is a schematic diagram of a front ultrafiltration backwash system for whole house clean water of the present utility model.
Fig. 2 is a schematic diagram of embodiment 2 of the present utility model.
Detailed Description
Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
The front ultrafiltration backwashing system of full-house water purification as shown in fig. 1 comprises a water inlet system 1, an ultrafiltration filter element 2, a backwashing system 3 and a drainage system 4 which are sequentially connected, wherein the ultrafiltration filter element 2 is provided with a water purifying end 21, the water purifying end 21 is connected with the backwashing system 3, the backwashing system 3 is provided with a backwashing end 31 and a flushing assembly 32 connected with the backwashing end 31, and the flushing assembly 32 is used for backwashing the ultrafiltration filter element 2. According to the utility model, pure water generated in the water purification process is conveyed into the pure water storage container, the surface of the ultrafiltration filter element is washed through the back washing end on the back washing system, the washed waste water is discharged through the drainage system, and the ultrafiltration filter element is washed through back washing on the basis of normal forward washing, so that the purpose of removing impurities adhered to the ultrafiltration filter element is achieved, the service life of the ultrafiltration filter element is prolonged, frequent replacement of the ultrafiltration filter element is avoided, and the daily use of a user is greatly facilitated.
The front ultrafiltration back flushing system of full house water purification as shown in fig. 1, the flushing assembly 32 comprises a flushing end 321 connected with the back flushing end 31, the flushing end 321 is sequentially provided with a pure water storage container 3211, a variable frequency pump 3212, a back flushing electromagnetic valve 3213 and a one-way valve 3214, the flushing assembly 32 further comprises a water system 322 connected with the flushing end 321, the water system 322 is arranged between the variable frequency pump 3212 and the back flushing electromagnetic valve 3213, the water system 322 is provided with a water electromagnetic valve 3221, the water drainage system 4 is connected with the ultrafiltration filter element 2, and the water drainage system 4 is provided with a flushing electromagnetic valve 42. By adopting the design, when back flushing is carried out, the variable frequency pump is started, the water solenoid valve arranged on the water system is closed, the flushing solenoid valve and the back flushing solenoid valve are started, pure water in the pure water storage container enters the back flushing end through the one-way valve in the flushing system, pure water washes the surface of the ultrafiltration filter element from the back flushing end, the washed waste water is discharged into the water draining system, when normal water is produced, the flushing solenoid valve and the back flushing solenoid valve are closed, as the flushing end is provided with the one-way valve, pure water filtered by the ultrafiltration filter element cannot enter the pure water storage container from the flushing end, further, the water system is also provided with the flowmeter, when water is needed, the variable frequency pump is started to provide pressure, the water solenoid valve is opened, the flushing solenoid valve and the back flushing solenoid valve are closed, pure water in the pure water storage container can be output into drinking water through the water system, the flowmeter on the water system can measure the output flow of the drinking water, the pure water storage container is provided with the first pure water level detector, the second pure water level detector, the ozone generator, the pure water storage container air valve is used for balancing the pressure in the pure water storage container, and the ozone generator is used for sterilizing and sterilizing the pure water inside the pure water storage container. The water making is started when the pure water in the pure water storage container is less than the first pure water level detector, and stopped when the pure water in the pure water storage container is higher than the second pure water level detector.
The back flush system 3 further comprises a water making system 33 with one end connected with the water purifying end 21, the other end of the water making system 33 is connected with a pure water storage container 3211, the water making system 33 is sequentially provided with a water making system electromagnetic valve 331, a first activated carbon filter element 332, a booster pump 333 and a reverse osmosis filter element 334, the back flush end 31 is arranged between the water making system electromagnetic valve 331 and the water purifying end 21, and the water making system 33 further comprises a booster pump 333 arranged between the first activated carbon filter element 332 and the reverse osmosis filter element 334. By adopting the design, after the electromagnetic valve of the water preparation system is opened, filtered clean water flows into the water preparation system from the ultrafiltration filter core, the clean water is filtered through the first activated carbon filter core, the filtered water is pressurized through the booster pump, the filtered water is conveyed to the reverse osmosis filter core, ions, small molecules and the like in the clean water are removed by the reverse osmosis filter core, the clean water is converted into pure water, the purified pure water is conveyed to the pure water storage container, the water preparation system is further provided with the first TDS detector and the second TDS detector, the first TDS detector is arranged between the first activated carbon filter core and the reverse osmosis filter core, the second TDS detector is arranged between the reverse osmosis filter core and the second activated carbon filter core, the first TDS detector is used for detecting the total amount of various soluble mineral salts in the clean water after the clean water passes through the first activated carbon filter core, and the first TDS detector is used for detecting the total amount of various soluble mineral salts in the clean water after the clean water passes through the reverse osmosis filter core.
The water making system 33 further includes a second activated carbon filter element 335 disposed between the reverse osmosis filter element 334 and the pure water storage vessel 3211, as shown in fig. 1, which is a front ultrafiltration back flush system of full house pure water. By adopting the design, after the electromagnetic valve of the water preparation system is opened, the purified water filtered by the ultrafiltration filter element flows into the water preparation system, the purified water is filtered by the first activated carbon filter element, and pressurized by the booster pump, so that the filtered water can be conveyed to the reverse osmosis filter element, ions, small molecules and the like in the purified water are removed by the reverse osmosis filter element, the purified water is converted into pure water, the pure water is conveyed to the second activated carbon filter element to further improve the taste, and the purified pure water is conveyed to the pure water storage container.
The system 33 further comprises a concentrated water connection end 337 disposed between the drainage system 4 and the reverse osmosis filter element 334, and the concentrated water connection end 337 is sequentially provided with an adjustable wastewater ratio electromagnetic valve 3371 and a check valve 3372. By adopting the design, when water is normally produced, the adjustable waste water ratio electromagnetic valve is opened, concentrated water generated by the reverse osmosis filter element enters the drainage system through the concentrated water connecting end, and the arrangement of the check valve can prevent waste water discharged by the ultrafiltration filter element from entering the reverse osmosis filter element through the drainage system.
The water inlet system 1 is sequentially provided with a self-priming valve 11, a water inlet ball valve 12 and a pre-filtering device 13, a pre-filtering connecting end 41 is arranged between the water drainage system 4 and the pre-filtering device 13, and the pre-filtering connecting end 41 is provided with a flushing ball valve 411. By adopting the design, in the water production process, the self-priming pump is started, raw water enters the pre-filtering device from the water inlet system through the water inlet ball valve, raw water treated by the pre-filtering device enters the ultrafiltration filter core, and waste water generated by the pre-filtering device enters the drainage system through the flushing ball valve at the pre-filtering connecting end and is discharged.
The implementation of this example is as follows:
the detailed operation of the forward and reverse flushing ultrafiltration water purification system for whole house water purification will be described in detail below by way of example 1, as shown in fig. 1.
The water preparation process comprises the following steps: when the pure water in the pure water storage container 3211 is lower than the first pure water level detector 32111, water production is started, raw water enters the pre-filter device 13 through the water inlet ball valve 12 of the water inlet system 1 under the action of the self-priming pump 11, large particles and the like in the raw water are removed by the pre-filter device 13, water treated by the pre-filter device 13 enters the ultrafiltration filter element 2, microorganisms, colloid, suspended matters, macromolecular organic matters and the like are trapped by the ultrafiltration filter element 2, water filtered by the ultrafiltration filter element 2 becomes pure water containing minerals, at the moment, the water production system electromagnetic valve 331 is opened, the flushing electromagnetic valve 42 and the backwashing electromagnetic valve 3213 are closed, the pure water enters the first activated carbon filter element 332 for filtration, the treated pure water enters the reverse osmosis filter element 334 under the action of the booster pump 333, ions, small molecules and the like in the water are removed by the reverse osmosis filter element 334, the pure water is converted into pure water, the pure water is treated by the second activated carbon filter element 3342 and then enters the pure water container 3211, when water is needed, the water is used, the water electromagnetic valve 3221 and the variable frequency pump 3213 and the water storage electromagnetic valve 322 is closed, and the pure water is discharged from the water system.
In the water preparation process, the adjustable waste water ratio electromagnetic valve 3371 is opened, the concentrated water generated by the inner membrane of the reverse osmosis filter element 334 enters the drainage system 4 through the concentrated water connecting end 337, and the concentrated water is directly discharged.
The positive flushing process comprises the following steps: raw water enters the pre-filtering device 13 through the water inlet ball valve 12 of the water inlet system 1, water treated by the pre-filtering device 13 enters the ultrafiltration filter element 2 and washes the surface of the ultrafiltration filter element 2, at the moment, the water preparation system electromagnetic valve 331 is closed, the back flush electromagnetic valve 3213 is closed, the flushing electromagnetic valve 42 is opened, the flushed wastewater enters the drainage system 4 through the ultrafiltration filter element 2 and is discharged, the flushing frequency of flushing is high, and microorganisms, colloid, suspended matters and macromolecular organic matters adhered to the surface of the ultrafiltration filter element 2 can be removed.
And (3) back flushing: when the pure water in the pure water storage container 3211 is higher than the second pure water level detector 32112, the water production is stopped, after the water production is finished, the self-priming pump 11 stops running, the water production system electromagnetic valve 331 is closed, the variable frequency pump 3212 is opened, the water electromagnetic valve 3221 is closed, the back flush electromagnetic valve 3213 is opened, the flushing electromagnetic valve 42 is opened, the pure water enters the flushing end 321 from the pure water storage container 3211, the pure water enters the back flush end 31 through the one-way valve 3214, the pure water flushes microorganisms, colloids, suspended matters and macromolecular organic matters adhered to the ultrafiltration filter element 2, the flushed waste water enters the drainage system 4 through the ultrafiltration filter element 2 and is discharged, pulse flushing is realized by controlling the start and stop of the back flush electromagnetic valve 321, after the back flush is finished, the variable frequency pump 3212 stops running, and the back flush electromagnetic valve 3213 and the flushing electromagnetic valve 42 are closed. The foreign matters on the surface of a part of the ultrafiltration filter element 2 are removed through repeated forward flushing, and microorganisms, colloid, suspended matters and macromolecular organic matters adhered on the surface of the ultrafiltration filter element 2 are removed through back flushing, so that the flushing effect can be improved, and the service life of the ultrafiltration filter element is effectively prolonged.
The detailed operation of the positive and negative flushing ultrafiltration water purification system for whole house water purification will be described in detail below by way of example 2, as shown in fig. 2.
The water preparation process comprises the following steps: when the pure water in the pure water storage container 3211 is lower than the first pure water level detector 32111, water production is started, raw water enters the pre-filter device 13 through the water inlet ball valve 12 of the water inlet system 1 under the action of the self-priming pump 11, the pre-filter device 13 removes large particles in the raw water, the water treated by the pre-filter device 13 enters the ultrafiltration filter element 2, the ultrafiltration filter element 2 traps microorganisms, colloid, suspended matters, macromolecular organic matters and the like, the water filtered by the ultrafiltration filter element 2 becomes the pure water containing minerals, at this time, the water production system electromagnetic valve 331 is opened, the flushing electromagnetic valve 42 and the backwashing electromagnetic valve 3213 are closed, the pure water enters the first activated carbon filter element 332 for filtration, the treated pure water enters the reverse osmosis filter element 334 under the action of the booster pump 333, ions, small molecules and the like in the water are removed by the reverse osmosis filter element 334, the pure water is converted into pure water, the pure water directly enters the pure water storage container 3211, when the water is needed, the water electromagnetic valve 3221 and the variable frequency pump 3212 are opened, the pure water electromagnetic valve 322 and the pure water is discharged from the water system.
In the water preparation process, the adjustable waste water ratio electromagnetic valve 3371 is opened, the concentrated water generated by the inner membrane of the reverse osmosis filter element 334 enters the drainage system 4 through the concentrated water connecting end 337, and the concentrated water is directly discharged.
The positive flushing process comprises the following steps: raw water enters the pre-filtering device 13 through the water inlet ball valve 12 of the water inlet system 1, water treated by the pre-filtering device 13 enters the ultrafiltration filter element 2 and washes the surface of the ultrafiltration filter element 2, at the moment, the water preparation system electromagnetic valve 331 is closed, the back flush electromagnetic valve 3213 is closed, the flushing electromagnetic valve 42 is opened, the flushed wastewater enters the drainage system 4 through the ultrafiltration filter element 2 and is discharged, the flushing frequency of flushing is high, and microorganisms, colloid, suspended matters and macromolecular organic matters adhered to the surface of the ultrafiltration filter element 2 can be removed.
And (3) back flushing: when the pure water in the pure water storage container 3211 is higher than the second pure water level detector 32112, the water production is stopped, after the water production is finished, the self-priming pump 11 stops running, the water production system electromagnetic valve 331 is closed, the variable frequency pump 3212 is opened, the water electromagnetic valve 3221 is closed, the back flush electromagnetic valve 3213 is opened, the flushing electromagnetic valve 42 is opened, the pure water enters the flushing end 321 from the pure water storage container 3211, the pure water enters the back flush end 31 through the one-way valve 3214, the pure water flushes microorganisms, colloids, suspended matters and macromolecular organic matters adhered to the ultrafiltration filter element 2, the flushed waste water enters the drainage system 4 through the ultrafiltration filter element 2 and is discharged, pulse flushing is realized by controlling the start and stop of the back flush electromagnetic valve 321, after the back flush is finished, the variable frequency pump 3212 stops running, and the back flush electromagnetic valve 3213 and the flushing electromagnetic valve 42 are closed. The foreign matters on the surface of a part of the ultrafiltration filter element 2 are removed through repeated forward flushing, and microorganisms, colloid, suspended matters and macromolecular organic matters adhered on the surface of the ultrafiltration filter element 2 are removed through back flushing, so that the flushing effect can be improved, and the service life of the ultrafiltration filter element is effectively prolonged.
The raw water is suitable for city tap water, and the front ultrafiltration backwashing system for full-house water purification can be used for pretreatment systems of laboratory water purifiers and other commercial occasions besides home use.
The foregoing examples are provided to further illustrate the technical contents of the present utility model for the convenience of the reader, but are not intended to limit the embodiments of the present utility model thereto, and any technical extension or re-creation according to the present utility model is protected by the present utility model. The protection scope of the utility model is subject to the claims.
Claims (10)
1. The utility model provides a leading ultrafiltration back flush system of full room water purification, includes water inlet system (1), ultrafiltration filter core (2), back flush system (3) and drainage system (4) that connect gradually, its characterized in that: the ultrafiltration filter element (2) is provided with a water purifying end (21), the water purifying end (21) is connected with the back flushing system (3), the back flushing system (3) is provided with a back flushing end (31) and a flushing assembly (32) connected with the back flushing end (31), and the flushing assembly (32) is used for back flushing the ultrafiltration filter element (2).
2. The full house clean water pre-ultrafiltrating back flush system of claim 1, wherein: the flushing assembly (32) comprises a flushing end (321) connected with the back flushing end (31), and the flushing end (321) is sequentially provided with a pure water storage container (3211), a variable frequency pump (3212), a back flushing electromagnetic valve (3213) and a one-way valve (3214).
3. The full house clean water pre-ultrafiltrating back flush system of claim 2, wherein: the flushing assembly (32) further comprises a water system (322) connected with the flushing end (321), the water system (322) is arranged between the variable frequency pump (3212) and the back flushing electromagnetic valve (3213), and the water system (322) is provided with a water electromagnetic valve (3221).
4. The full house clean water pre-ultrafiltrating back flush system of claim 2, wherein: the back flushing system (3) further comprises a water making system (33) with one end connected with the water purifying end (21), and the other end of the water making system (33) is connected with the pure water storage container (3211).
5. The full house clean water pre-ultrafiltrating back flush system of claim 4, wherein: the water making system (33) is sequentially provided with a water making system electromagnetic valve (331), a first activated carbon filter element (332), a booster pump (333) and a reverse osmosis filter element (334), and the back flushing end (31) is arranged between the water making system electromagnetic valve (331) and the water purifying end (21).
6. The full house clean water pre-ultrafiltrating back flush system of claim 5, wherein: the water production system (33) further includes a booster pump (333) disposed between the first activated carbon filter element (332) and the reverse osmosis filter element (334).
7. The full house clean water pre-ultrafiltrating back flush system of claim 5, wherein: the water production system (33) further includes a second activated carbon filter cartridge (335) disposed between the reverse osmosis filter cartridge (334) and the pure water storage vessel (3211).
8. The full house clean water pre-ultrafiltrating back flush system of claim 5, wherein: the water production system (33) further comprises a concentrated water connecting end (337) arranged between the drainage system (4) and the reverse osmosis filter element (334), and the concentrated water connecting end (337) is sequentially provided with an adjustable wastewater ratio electromagnetic valve (3371) and a check valve (3372).
9. The full house clean water pre-ultrafiltrating back flush system of claim 1, wherein: the drainage system (4) is connected with the ultrafiltration filter element (2), and the drainage system (4) is provided with a flushing electromagnetic valve (42).
10. The full house clean water pre-ultrafiltrating back flush system of claim 1, wherein: the water inlet system (1) is sequentially provided with a self-priming valve (11), a water inlet ball valve (12) and a pre-filtering device (13), a pre-filtering connecting end (41) is arranged between the water drainage system (4) and the pre-filtering device (13), and a flushing ball valve (411) is arranged at the pre-filtering connecting end (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221074739.3U CN219194714U (en) | 2022-05-06 | 2022-05-06 | Front ultrafiltration back flush system of full house water purification |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221074739.3U CN219194714U (en) | 2022-05-06 | 2022-05-06 | Front ultrafiltration back flush system of full house water purification |
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| CN219194714U true CN219194714U (en) | 2023-06-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117486284A (en) * | 2023-12-29 | 2024-02-02 | 珠海格力电器股份有限公司 | Water purification system, water purification system control method, device and water purification equipment |
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2022
- 2022-05-06 CN CN202221074739.3U patent/CN219194714U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117486284A (en) * | 2023-12-29 | 2024-02-02 | 珠海格力电器股份有限公司 | Water purification system, water purification system control method, device and water purification equipment |
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