CN219314661U - Water purification system and water purification equipment - Google Patents
Water purification system and water purification equipment Download PDFInfo
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- CN219314661U CN219314661U CN202320297858.3U CN202320297858U CN219314661U CN 219314661 U CN219314661 U CN 219314661U CN 202320297858 U CN202320297858 U CN 202320297858U CN 219314661 U CN219314661 U CN 219314661U
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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
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Abstract
The utility model discloses a water purification system and water purification equipment, when water is required to be normally taken through the water purification system, a first control valve is opened, raw water which is introduced into a water inlet of a first pre-filter element through a water inlet pipe is filtered by the first pre-filter element, and then sewage with impurities is discharged from a water outlet, so that the filtered water SDI is reduced to a lower level, and then enters a reverse osmosis filter element through a first water pipe to be filtered into purified water which can be directly drunk, thereby effectively prolonging the service life of a reverse osmosis membrane and preventing the reverse osmosis membrane from being blocked. After water taking is finished, the opening of the first control valve is adjusted to zero to enable the first control valve to be closed, raw water in the water inlet pipe can enter the second water pipe, purified water is formed by filtering through the second pre-filter element and the reverse osmosis filter element in sequence, the first pre-filter element is backflushed through the third water pipe, and sewage formed by flushing is discharged from the water outlet, so that the service life of the first pre-filter element is prolonged, blockage of the first pre-filter element is prevented, and the service life of the reverse osmosis filter element is further prolonged.
Description
Technical Field
The utility model relates to the technical field of household appliances, in particular to a water purifying system and water purifying equipment.
Background
At present, the reverse osmosis technology is widely applied to the fields of water purification and the like, and one of the fields is a water purifier. Reverse osmosis is a membrane separation operation that separates solvent from solution with pressure differential as the driving force. I.e. applying pressure to the feed water on one side of the membrane, when the pressure exceeds its osmotic pressure, the solvent will reverse permeate against the natural permeation direction, yielding purified water with low TDS (total dissolved solids).
The reverse osmosis membrane can be directly drunk by filtered water due to the ultrahigh filtering efficiency, but the excessive filtering efficiency can cause the water to be easily blocked, so that the water entering the reverse osmosis membrane is generally required to be pretreated at present, so that the Sludge Density Index (SDI) of the water is less than 5, and the premature blocking of the reverse osmosis membrane is prevented.
However, the filter material for pretreating the water entering the reverse osmosis membrane is also liable to be clogged.
Disclosure of Invention
The utility model aims to provide a water purification system and water purification equipment, which can flush a first preposed filter element and prevent the first preposed filter element from being blocked.
In a first aspect, the present utility model provides a water purification system comprising a water inlet pipe, a first water pipe, a second water pipe, a third water pipe, a first pre-filter element, a second pre-filter element, a first control valve and a reverse osmosis filter element;
the first preposed filter element is provided with a water inlet connected with the water inlet pipe, a water outlet connected with the first water pipe and a water outlet communicated with the water outlet;
the first control valve is arranged on the water inlet pipe, and the opening of the first control valve is adjustable;
the reverse osmosis filter element is arranged on the first water pipe;
the water inlet end of the second water pipe is connected with the water inlet pipe and is positioned at the upstream of the first control valve; the water outlet end of the second water pipe is connected with the first water pipe and is positioned at the upstream of the reverse osmosis filter element;
the second preposed filter element is arranged on the second water pipe;
the both ends of third water pipe all connect in first water pipe, just the water inlet end of third water pipe is located reverse osmosis filter core's low reaches, the water outlet end of third water pipe is located reverse osmosis filter core's upper reaches.
In an alternative embodiment, the water purification system further comprises a third pre-filter element, which is arranged in the first water pipe and upstream of the reverse osmosis filter element.
In an alternative embodiment, the water outlet end of the second water pipe and the water outlet end of the third water pipe are both located upstream of the third pre-filter element.
In an alternative embodiment, the filter material of the first pre-filter element is UF, the filter material of the second pre-filter element is PP, and the filter material of the third pre-filter element is activated carbon.
In an alternative embodiment, the water purification system further comprises at least one of a second control valve, a third control valve and a fourth control valve with adjustable opening;
the second control valve is arranged on the first water pipe and is positioned at the upstream of the reverse osmosis filter element; the water outlet end of the second water pipe is positioned between the second control valve and the reverse osmosis filter element; the water outlet end of the third water pipe is positioned at the upstream of the second control valve;
the third control valve is arranged on the second water pipe;
the fourth control valve is arranged on the third water pipe.
In an alternative embodiment, the water purification system further comprises a drain pipe and a drain control valve with an adjustable opening, wherein the drain pipe is arranged on the drain pipe, and the drain pipe is connected with the drain outlet.
In an alternative embodiment, the water purification system further comprises a first one-way valve, wherein the first one-way valve is arranged on the first water pipe and is positioned at the downstream of the reverse osmosis filter element, and the conducting direction of the first one-way valve is from the first pre-filter element to the reverse osmosis filter element.
In an optional embodiment, the water purification system further comprises a second one-way valve, the second one-way valve is arranged on the third water pipe, and the conducting direction of the second one-way valve is from the water inlet end of the third water pipe to the water outlet end of the third water pipe.
In an alternative embodiment, the water purification system further comprises a booster pump, the booster pump being disposed in the first water pipe and upstream of the reverse osmosis filter element.
In a second aspect, the present utility model provides a water purification apparatus comprising a water purification system as described in any one of the previous embodiments.
The beneficial effects of the embodiment of the utility model include:
when water is required to be normally taken, the first control valve is opened, raw water which is introduced into the water inlet of the first pre-filter element from the water inlet pipe is filtered by the first pre-filter element, and then the sewage with impurities is discharged from the water outlet, so that filtered water SDI is reduced to a lower level, and the filtered water enters the reverse osmosis filter element through the first water pipe to be filtered into purified water which can be directly drunk for a user to take, thereby effectively prolonging the service life of the reverse osmosis membrane and preventing the reverse osmosis membrane from being blocked. After water taking is finished, the opening of the first control valve is adjusted to zero to be closed, so that raw water in the water inlet pipe can enter the second water pipe, purified water is formed by filtering through the second pre-filter element and the reverse osmosis filter element in sequence, the purified water enters the water outlet of the first pre-filter element through the third water pipe to recoil the first pre-filter element, and sewage formed by flushing is discharged from the water outlet, so that the service life of the first pre-filter element is prolonged, blockage of the first pre-filter element is prevented, and the service life of the reverse osmosis filter element is further prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a water purification system according to the present embodiment.
Icon: 10-a water inlet pipe; 11-a first water pipe; 12-a second water pipe; 13-a third water pipe; 14-a drain pipe; 15-waste pipe; 20-a first pre-cartridge; 21-a second pre-cartridge; 22-a third pre-filter element; 24-reverse osmosis filter element; 30-a booster pump; 31-a first control valve; 32-a second control valve; 33-a third control valve; 34-a fourth control valve; 35-a waste water control valve; 36-a drain control valve; 40-a first one-way valve; 41-a second one-way valve.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Some embodiments of the present utility model are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
Referring to fig. 1, an embodiment of the present utility model provides a water purification system, which can be applied to water purification devices such as a household water purifier, and includes a water inlet pipe 10, a first water pipe 11, a second water pipe 12, a third water pipe 13, a first pre-filter 20, a second pre-filter 21, a reverse osmosis filter 24, a first control valve 31, and a water intake switch.
The first pre-filter 20 has a water inlet, a water outlet and a water outlet, and the water inlet and the water outlet are in communication.
The water inlet pipe 10 is mainly used for providing tap water for the whole water purification system, the water inlet end of the water inlet pipe 10 can be connected with a tap water pipe or other water sources, and the water outlet of the water inlet pipe 10 is connected with the water inlet of the first pre-filter element 20.
The first control valve 31 is disposed on the water inlet pipe 10, and the opening degree thereof is adjustable, so that the water amount introduced into the first pre-filter element 20 by the water inlet pipe 10 can be adjusted, for example, the opening degree can be adjusted to zero, so that the raw water in the water inlet pipe 10 cannot be introduced into the first pre-filter element 20.
The water inlet end of the first water pipe 11 is connected with the water outlet of the first pre-filter element 20, and the reverse osmosis filter element 24 and the water intake switch are sequentially arranged on the first water pipe 11 along the water flow direction. The raw water provided by the water inlet pipe 10 is filtered by the first pre-filter element 20 to reduce the SDI index, and then is sent to the reverse osmosis filter element 24 to be subjected to reverse osmosis filtration to form purified water, and the purified water can be discharged from the water outlet end of the first water pipe 11 after the water taking switch is opened so as to be directly drunk by a user.
The reverse osmosis filter element 24 also has a waste water port, the water purifying system further comprises a waste water pipe 15 connected with the waste water port, so that impurities and TDS values formed after the filtration of the reverse osmosis filter element 24 are relatively high, and waste water which cannot be drunk by a user can be discharged through the waste water port and the waste water pipe 15 in sequence. In addition, in order to avoid waste of resources, a container may be provided at the water outlet end of the waste pipe 15 to receive collected waste water, which may be used for flushing toilets or for cleaning sanitary water at home.
The water inlet end of the second water pipe 12 is connected to the water inlet pipe 10 and is positioned upstream of the first control valve 31; the water outlet end of the second water pipe 12 is connected to the first water pipe 11 and is located upstream of the reverse osmosis cartridge 24.
The second pre-filter 21 is disposed in the second water pipe 12.
Both ends of the third water pipe 13 are connected to the first water pipe 11, and the water inlet end of the third water pipe 13 is located at the downstream of the reverse osmosis filter element 24, and the water outlet end of the third water pipe 13 is located at the upstream of the reverse osmosis filter element 24.
In this way, when water needs to be normally taken, the first control valve 31 is opened, and after the raw water introduced from the water inlet pipe 10 to the water inlet of the first pre-filter element 20 is filtered by the first pre-filter element 20, the sewage with impurities is discharged from the water outlet, so that the filtered water SDI is reduced to a lower level, and then enters the reverse osmosis filter element 24 through the first water pipe 11 to be filtered into purified water which can be directly drunk for a user to take, thereby effectively prolonging the service life of the reverse osmosis membrane and preventing the reverse osmosis membrane from being blocked. After water taking is finished, the opening of the first control valve 31 is adjusted to zero so that the first control valve is closed, raw water in the water inlet pipe 10 enters the second water pipe 12 and is filtered by the second pre-filter element 21 and the reverse osmosis filter element 24 in sequence to form purified water, and then the purified water enters the water outlet of the first pre-filter element 20 through the third water pipe 13 so as to recoil the first pre-filter element 20, and sewage formed by flushing is discharged from the water outlet, so that the service life of the first pre-filter element 20 is prolonged, and the service life of the reverse osmosis filter element 24 is further prolonged.
In this embodiment, the water purification system further includes a booster pump 30, where the booster pump 30 is disposed on the first water pipe 11 and located upstream of the reverse osmosis filter element 24, and the water outlet end of the second water pipe 12 is located upstream of the booster pump 30. The booster pump 30 is mainly used for driving water in the first water pipe 11 to enter the reverse osmosis filter core 24, and can also pressurize the water in the first water pipe 11 to ensure that the water pressure entering the reverse osmosis filter core 24 is high enough, so that the reverse osmosis filter core 24 can purify the water filtered by the first pre-filter core 20 or the second pre-filter core 21 into purified water, and then the purified water is discharged from the water taking switch for a user to use.
In this embodiment, the water purification system further includes a third pre-filter 22, where the third pre-filter 22 is disposed on the first water pipe 11 and is located at the upstream of the reverse osmosis filter 24, so that the water primarily filtered by the first pre-filter 20 can further reduce the SDI, so that the water with a lower SDI enters the reverse osmosis filter 24 through the first water pipe 11 to be filtered, and further improves the service life of the reverse osmosis filter 24.
Specifically, the water outlet end of the second water pipe 12 and the water outlet end of the third water pipe 13 are both located at the upstream of the third pre-filter element 22, so that the water filtered by the second pre-filter element 21 passes through the third pre-filter element 22 and the reverse osmosis filter element 24 in sequence and then is directly sent to the water outlet of the first pre-filter element 20 for back flushing, and the back flushing is cleaner and more thorough.
In this embodiment, the filter materials of the first pre-filter 20, the second pre-filter 21 and the third pre-filter 22 can be flexibly selected, for example, the filter material of the first pre-filter 20 can be UF, the filter material of the second pre-filter 21 is PP, and the filter material of the third pre-filter 22 is activated carbon, so that raw water is treated by using the UF filter with better filtering effect as a first filtering line to intercept more impurities, ensure that the outlet water SDI of the first pre-filter 20 meets the requirement of less than 5, and is more difficult to block than melt blown PP cotton, thereby prolonging the service life of the third pre-filter 22 and the reverse osmosis filter 24 along the downstream side.
In this embodiment, the water purification system further includes a second control valve 32, a third control valve 33, and a fourth control valve 34, the opening degrees of which are adjustable.
The second control valve 32 is arranged on the first water pipe 11 and is positioned upstream of the reverse osmosis filter element 24; the water outlet end of the second water pipe 12 is positioned between the second control valve 32 and the third pre-filter element 22; the water outlet end of the third water pipe 13 is located upstream of the second control valve 32.
Thus, when a user needs to take water, the second control valve 32 is opened, so that the water filtered by the first pre-filter 20 can be led to the reverse osmosis filter 24; when the back flushing needs to be carried out on the first pre-filter element 20, the opening of the second control valve 32 is adjusted to zero, so that the first water pipe 11 is cut off, and water filtered by the second pre-filter element 21 can only flow to the reverse osmosis filter element 24 due to the blocking of the second control valve 32, so that the water is prevented from directly entering the water outlet of the first pre-filter element 20, and the flushing is ensured.
The third control valve 33 is disposed on the second water pipe 12, so that when a user needs to drink water, the opening of the third control valve 33 is adjusted to zero to cut off the second water pipe 12, so that the raw water in the water inlet pipe 10 can only be filtered through the first pre-filter 20, and when the first pre-filter 20 needs to be back-washed, only the third control valve 33 needs to be opened, so that the raw water can be filtered through the second pre-filter 21 directly.
The fourth control valve 34 is disposed on the third water pipe 13, so that when a user needs to drink water, the opening of the fourth control valve 34 is adjusted to zero to intercept the third water pipe 13, so that purified water filtered by the reverse osmosis filter element 24 cannot flow back along with the third water pipe 13, and purified water is ensured to flow out from the water outlet end of the first water pipe 11 normally.
In this embodiment, the water purification system further includes a drain pipe 14 and a drain control valve 36 with an adjustable opening, which is disposed on the drain pipe 14, and the drain pipe 14 is connected to a drain outlet, so that the drain pipe 14 is turned on or off through the drain control valve 36 to meet the requirements, and the sewage discharged from the drain pipe 14 can be used for flushing toilet, etc.
The water purification system further comprises a first one-way valve 40, the first one-way valve 40 is arranged on the first water pipe 11 and is positioned at the downstream of the reverse osmosis filter element 24, the conducting direction of the first one-way valve 40 is from the first pre-filter element 20 to the reverse osmosis filter element 24, so that purified water filtered by the reverse osmosis filter element 24 is prevented from flowing back, meanwhile, a water taking switch can be set to be a high-pressure switch capable of sensing water pressure, and therefore when the water pressure in the first water pipe 11 reaches a preset threshold value, the first control valve 31 and the second control valve 32 are automatically closed, and the third control valve 33 and the fourth control valve 34 are automatically opened, so that the first pre-filter element 20 is backflushed.
The water purification system further comprises a second one-way valve 41, the second one-way valve 41 is arranged on the third water pipe 13, and the conduction direction of the second one-way valve 41 is from the water inlet end of the third water pipe 13 to the water outlet end of the third water pipe 13, so that water filtered by the first pre-filter element 20 can be prevented from directly entering the downstream of the reverse osmosis filter element 24 through the third water pipe 13.
The working principle of the water purification system of this embodiment is exemplified as follows:
when a user starts the system to take water, the system enters a normal water making process, the first control valve 31, the second control valve 32, the water taking switch and the waste water control valve 35 are opened, the third control valve 33, the fourth control valve 34 and the water discharging control valve 36 are closed, raw water in the water inlet pipe 10 sequentially passes through the first pre-filter element 20, the second control valve 32 and the third pre-filter element 22, and enters the reverse osmosis filter element 24 after being pressurized by the booster pump 30, and purified water processed by the reverse osmosis filter element 24 enters a tap connected to the water outlet end of the first water pipe 11 for the user to use through the water taking switch. After the user finishes taking water, the system enters a standby flow, the first control valve 31, the second control valve 32, the water taking switch and the waste water control valve 35 are closed, the opening degree is zero, and the water tap can not discharge water any more.
When the back flushing is needed, the starting condition of the back flushing can be a user input instruction or the system can be operated at regular time, at the moment, the first control valve 31, the third control valve 33, the fourth control valve 34, the waste water control valve 35 and the water discharging control valve 36 are opened, the second control valve 32 and the water taking switch are closed, raw water in the water inlet pipe 10 enters the second pre-filter core 21 for filtering after passing through the third control valve 33, then enters the reverse osmosis filter core 24 after being pressurized by the booster pump 30, purified water after being processed by the reverse osmosis filter core 24 is introduced into the water outlet of the first pre-filter core 20 through the third water pipe 13 so as to back flushing the first pre-filter core 20, and finally is discharged through the water discharging pipe 14.
The present embodiment also provides a water purifying apparatus, which includes the water purifying system of the above embodiment, so that the water purifying apparatus also has corresponding structures and beneficial effects, and will not be described herein again.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (10)
1. The water purification system is characterized by comprising a water inlet pipe, a first water pipe, a second water pipe, a third water pipe, a first preposed filter element, a second preposed filter element, a first control valve and a reverse osmosis filter element;
the first preposed filter element is provided with a water inlet connected with the water inlet pipe, a water outlet connected with the first water pipe and a water outlet communicated with the water outlet;
the first control valve is arranged on the water inlet pipe, and the opening of the first control valve is adjustable;
the reverse osmosis filter element is arranged on the first water pipe;
the water inlet end of the second water pipe is connected with the water inlet pipe and is positioned at the upstream of the first control valve; the water outlet end of the second water pipe is connected with the first water pipe and is positioned at the upstream of the reverse osmosis filter element;
the second preposed filter element is arranged on the second water pipe;
the both ends of third water pipe all connect in first water pipe, just the water inlet end of third water pipe is located reverse osmosis filter core's low reaches, the water outlet end of third water pipe is located reverse osmosis filter core's upper reaches.
2. The water purification system of claim 1, further comprising a third pre-filter element disposed in the first water line upstream of the reverse osmosis filter element.
3. The water purification system of claim 2, wherein the water outlet end of the second water tube and the water outlet end of the third water tube are both upstream of the third pre-filter element.
4. The water purification system of claim 2, wherein the filter material of the first pre-filter cartridge is UF, the filter material of the second pre-filter cartridge is PP, and the filter material of the third pre-filter cartridge is activated carbon.
5. The water purification system of claim 1, further comprising at least one of a second control valve, a third control valve, and a fourth control valve with an adjustable opening;
the second control valve is arranged on the first water pipe and is positioned at the upstream of the reverse osmosis filter element; the water outlet end of the second water pipe is positioned between the second control valve and the reverse osmosis filter element; the water outlet end of the third water pipe is positioned at the upstream of the second control valve;
the third control valve is arranged on the second water pipe;
the fourth control valve is arranged on the third water pipe.
6. The water purification system of claim 1, further comprising a drain pipe and an opening-adjustable drain control valve disposed in the drain pipe, the drain pipe being connected to the drain port.
7. The water purification system of claim 1, further comprising a first one-way valve disposed in the first water conduit downstream of the reverse osmosis cartridge, the first one-way valve having a direction of conduction from the first pre-cartridge toward the reverse osmosis cartridge.
8. The water purification system of claim 1, further comprising a second one-way valve disposed in the third water pipe, wherein a conduction direction of the second one-way valve is from a water inlet end of the third water pipe toward a water outlet end of the third water pipe.
9. The water purification system of claim 1, further comprising a booster pump disposed in the first water line upstream of the reverse osmosis cartridge.
10. A water purification apparatus comprising a water purification system as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320297858.3U CN219314661U (en) | 2023-02-21 | 2023-02-21 | Water purification system and water purification equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320297858.3U CN219314661U (en) | 2023-02-21 | 2023-02-21 | Water purification system and water purification equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219314661U true CN219314661U (en) | 2023-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320297858.3U Active CN219314661U (en) | 2023-02-21 | 2023-02-21 | Water purification system and water purification equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219314661U (en) |
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2023
- 2023-02-21 CN CN202320297858.3U patent/CN219314661U/en active Active
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