CN218435432U - Water drive jar pure water film cleaning system - Google Patents
Water drive jar pure water film cleaning system Download PDFInfo
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- CN218435432U CN218435432U CN202222727247.6U CN202222727247U CN218435432U CN 218435432 U CN218435432 U CN 218435432U CN 202222727247 U CN202222727247 U CN 202222727247U CN 218435432 U CN218435432 U CN 218435432U
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Abstract
The utility model discloses a pure water film washing system of a water-driven tank, which comprises a tap water inlet pipeline and a purified water outlet pipeline, wherein the water outlet of the tap water inlet pipeline is divided into two branches, one branch is sequentially connected with a composite filter element filter, a booster pump and a reverse osmosis membrane filter element filter, the other branch is directly connected with the top water inlet of a tap water container, and a pure water storage bag is arranged in the tap water container; a concentrated water outlet of the reverse osmosis membrane filter element filter is connected with a concentrated water outlet pipe, and a pure water outlet is connected with a pure water outlet pipe; the pure water outlet pipe extends upwards, and the outlet at the top end of the pure water outlet pipe is divided into two branches, wherein one pure water outlet pipe is connected to the inlet at the top of the pure water storage bag; the other pure water outlet pipe II is connected to a water inlet of the post-positioned activated carbon filter element filter, and a water outlet of the post-positioned activated carbon filter element filter is connected with a purified water outlet pipeline. The utility model discloses can prolong filter core life, when not using reverse osmosis machine for a long time, guarantee the high purity of first cup of water simultaneously.
Description
Technical Field
The utility model relates to a domestic water purifier technical field, more specifically say, relate to a water drive jar pure water film cleaning system.
Background
Most of water purifiers all use the raw water to wash reverse osmosis membrane, get rid of impurity, but the raw water washes reverse osmosis membrane and leads to reverse osmosis membrane waste water end TDS value height easily, and the crystallization blocks up reverse osmosis membrane, leads to reverse osmosis membrane filter core life to reduce, has also led to the problem of "first saliva" simultaneously, shuts down the back system of starting water promptly, and initial quality of water TDS exceeds standard, endangers user's healthy.
The prior art discloses a pure water washing membrane technology, however, the prior pure water washing membrane provides power by compressed air, and the mode has long service life, and the air is easy to leak and lose power, so that the aim of stably washing the membrane cannot be achieved.
Therefore, the problem that needs to be solved by the technical staff in the field is how to provide a pure water membrane washing system which has long service life of the filter element and can ensure high purity of the first cup of water discharged after a long time without using a reverse osmosis machine.
SUMMERY OF THE UTILITY MODEL
Therefore, an object of the utility model is to provide a water drive jar pure water membrane cleaning system, when can also guaranteeing not to use the reverse osmosis machine for a long time when extension filter core life, the first cup water purity that its goes out can also be very high.
Another object of the utility model is to provide a water drive jar pure washing membrane method.
The utility model provides a water drive tank pure water membrane cleaning system, which comprises a tap water inlet pipeline and a purified water outlet pipeline, wherein the water inlet of the tap water inlet pipeline is connected with tap water, and the water outlet of the purified water outlet pipeline is connected with a water outlet tap; wherein the content of the first and second substances,
the water outlet of the tap water inlet pipeline is divided into two branches, one branch of the tap water inlet pipeline is sequentially connected with the composite filter element filter, the booster pump and the reverse osmosis membrane filter element filter through a pipeline I at the top according to the water flow direction, the other branch of the tap water inlet pipeline is directly connected to a water inlet at the top of the tap water container through a pipeline II at the bottom according to the water flow direction, and a pure water storage bag is arranged in the tap water container; a water inlet electromagnetic valve I is installed on the pipeline II, and a water inlet electromagnetic valve II is installed on the pipeline I between the composite filter element filter and the booster pump; a concentrated water outlet of the reverse osmosis membrane filter element filter is connected with a concentrated water outlet pipe, and a pure water outlet is connected with a pure water outlet pipe; a wastewater electromagnetic valve is arranged on the concentrated water outlet pipe; the pure water outlet pipe extends upwards, the outlet at the top end of the pure water outlet pipe is divided into two branches, one branch of the pure water outlet pipe is arranged above the concentrated water outlet pipe and connected to the inlet at the top of the pure water storage bag, and a check valve I is mounted on the pure water outlet pipe I; the other pure water outlet pipe II is arranged above the pipeline I and is connected to a water inlet of a post-positioned activated carbon filter element filter, a water outlet of the post-positioned activated carbon filter element filter is connected with the purified water outlet pipeline, and a high-pressure switch is arranged on the purified water outlet pipeline; the inlet at the top of the pure water storage bag is connected with a third pipeline extending upwards, the third pipeline is arranged above the pure water outlet pipe and is connected to the first pipeline between the booster pump and the reverse osmosis membrane filter element filter, and a third water inlet electromagnetic valve is mounted on the third pipeline; and a water outlet at the top of the tap water container is connected with a water outlet of the concentrated water outlet pipe through a fourth pipeline, and a fourth water inlet electromagnetic valve is installed on the fourth pipeline.
Further, the composite filter element filter with between the booster pump still install TDS probe one on the pipeline, TDS probe one is located water solenoid valve two is close to one side of composite filter element filter.
Furthermore, a TDS probe II is mounted on the pure water outlet pipe II.
Further, still install check valve two on the purified water outlet pipeline, the check valve two is located high pressure switch is close to one side of rearmounted active carbon filter core filter, just the cracking pressure of check valve two is less than check valve one.
Further, the opening pressure of the first check valve is 0.5 kg.
Furthermore, the pressure value of the high-voltage switch is 2-2.5 kilograms.
Further, the composite filter element filter and the rear activated carbon filter element filter are integrated in one structure.
The utility model provides a pair of water drive tank pure water washes membrane method, including following mode:
the first mode is as follows: the water outlet faucet is in an open state, meanwhile, the water inlet electromagnetic valve II is opened, tap water is filtered by the composite filter element filter, the booster pump, the reverse osmosis membrane filter element filter and the rear active carbon filter element filter in sequence, and then water is discharged through the purified water outlet pipeline;
and a second mode: when the pressure in the system exceeds the opening pressure of the first check valve, the first check valve is opened, and pure water filtered in the reverse osmosis membrane filter element enters the pure water storage bag through the first check valve; when the pure water storage bag is full of water, the pressure is greater than the set value of the high-voltage switch, and the machine is stopped;
and a third mode: the water inlet electromagnetic valve I is opened, the water inlet electromagnetic valve III is opened, the water inlet electromagnetic valve IV is closed, tap water enters a tap water container outside the pure water storage bag, water in the pure water storage bag is pressed into the water inlet end of the reverse osmosis membrane filter element through the water inlet electromagnetic valve III under the pressure of external tap water, the wastewater electromagnetic valve is simultaneously opened, pure water scours the wastewater end of the reverse osmosis membrane filter element until the DTS value of the wastewater end is reduced to a reasonable range, pure water washing is completed, and at the moment, the water inlet electromagnetic valve I and the water inlet electromagnetic valve III are closed;
and a fourth mode: when the pure water storage bag stores water, the water inlet electromagnetic valve II and the water inlet electromagnetic valve IV are opened, the water outlet faucet is closed, when the pressure in the system exceeds the opening pressure of the check valve I, pure water enters the pure water storage bag, tap water outside the pure water storage bag is discharged from the water inlet electromagnetic valve IV until the pure water storage bag is full, the pressure reaches a high-voltage switch setting value, the machine is stopped, and at the moment, the water inlet electromagnetic valve IV and the water inlet electromagnetic valve II are closed;
the whole process from the mode one to the mode four is circularly repeated.
Known through foretell technical scheme, compare with prior art, the utility model discloses following beneficial effect has:
the utility model discloses utilize pure water washing membrane, even running water TDS is very high, after washing through the pure water, can not be at the stifled membrane of reverse osmosis membrane surface crystallization yet, effectively prolonged the life of reverse osmosis membrane filter core. And through the pure washing membrane for the TDS value of reverse osmosis membrane filter core filter waste water end is very close with pure water end TDS value, and equipment produces when out of work and just permeates, and the one end that TDS value concentration is high permeates to the one end that concentration is low, reaches the first cup of water that the device is out of work for a long time and also is fresh drinkable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is the utility model discloses a water drive tank pure water film cleaning system's overall structure sketch map.
In the figure: 1-tap water inlet pipeline, 2-purified water outlet pipeline, 3-water outlet tap, 4-pipeline I, 5-composite filter element filter, 6-booster pump, 7-reverse osmosis membrane filter element filter, 8-pipeline II, 9-tap water container, 10-pure water storage bag, 11-water inlet solenoid valve I, 12-water inlet solenoid valve II, 13-concentrated water outlet pipe, 14-waste water solenoid valve, 15-pure water outlet pipe I, 16-check valve I, 17-pure water outlet pipe II, 18-post active carbon filter element filter, 19-high-pressure switch, 20-pipeline III, 21-water inlet solenoid valve III, 22-pipeline IV, 23-water inlet solenoid valve IV, 24-TDS probe I, 25-TDS probe II and 26-check valve II.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on orientations 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 device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Example (b):
the embodiment of the utility model discloses a pure water film washing system of a water drive tank, which is shown in the attached figure 1 and comprises a tap water inlet pipeline 1 and a purified water outlet pipeline 2, wherein the water inlet of the tap water inlet pipeline 1 is connected with tap water, and the water outlet of the purified water outlet pipeline 2 is connected with a water outlet tap 3; wherein the content of the first and second substances,
the water outlet of the tap water inlet pipeline 1 is divided into two branches, one branch is sequentially connected with a composite filter element filter 5, a booster pump 6 and a reverse osmosis membrane filter element filter 7 through a top pipeline I4 according to the water flow direction, the other branch is directly connected to the top water inlet of a tap water container 9 through a bottom pipeline II 8 according to the water flow direction, and a pure water storage bag 10 is arranged in the tap water container 9; a first water inlet electromagnetic valve 11 is arranged on the second pipeline 8, and a second water inlet electromagnetic valve 12 is arranged on the first pipeline 4 between the composite filter element filter 5 and the booster pump 6; a concentrated water outlet of the reverse osmosis membrane filter element filter 7 is connected with a concentrated water outlet pipe 13, and a pure water outlet is connected with a pure water outlet pipe; a wastewater electromagnetic valve 14 is arranged on the concentrated water outlet pipe 13; the pure water outlet pipe extends upwards, the outlet at the top end of the pure water outlet pipe is divided into two branches, one pure water outlet pipe I15 is arranged above the concentrated water outlet pipe 13 and connected to the inlet at the top of the pure water storage bag 10, and a check valve I16 is arranged on the pure water outlet pipe I15; the other pure water outlet pipe II 17 is arranged above the pipeline I4 and is connected to a water inlet of a post-positioned activated carbon filter element filter 18, a water outlet of the post-positioned activated carbon filter element filter 18 is connected with a purified water outlet pipeline 2, and a high-pressure switch 19 is arranged on the purified water outlet pipeline 2; the inlet at the top of the pure water storage bag 10 is connected with a third pipeline 20 extending upwards, the third pipeline 20 is arranged above the pure water outlet pipe and is connected to a first pipeline 4 between the booster pump 6 and the reverse osmosis membrane filter element 7, and a third water inlet electromagnetic valve 21 is arranged on the third pipeline 20; the top water outlet of the tap water container 9 is connected with the water outlet of the concentrated water outlet pipe 13 through a fourth pipeline 22, and a fourth water inlet electromagnetic valve 23 is installed on the fourth pipeline 22.
Referring to fig. 1, in the present embodiment, the composite cartridge filter 5 is integrated with the post-activated carbon cartridge filter 18 in one structure.
Moreover, on the basis of the technical scheme, a first TDS probe 24 is also arranged on a first pipeline 4 between the composite filter element filter 5 and the booster pump 6, and the first TDS probe 24 is positioned on one side, close to the composite filter element filter 5, of the second water inlet electromagnetic valve 12. Meanwhile, a second TDS probe 25 is mounted on the second pure water outlet pipe 17.
In a specific embodiment of the utility model, still install two check valves 26 on the outlet conduit 2 of purified water, two check valves 26 are located one side that high-voltage switch 19 is close to rearmounted active carbon filter 18, and two check valves 26's cracking pressure is less than one check valve 16, and two check valves 26 can play the pressurize effect to high-voltage switch 19.
In this embodiment, the opening pressure of the first check valve 16 is set to 0.5 kg. The pressure value of the high-voltage switch 19 is 2-2.5 kg.
Two requirements need to be met for pure water washing of the membrane by adopting the embodiment: 1. a water bag (i.e., a pure water storage bag) capable of storing pure water is required. 2. A power is required to inject the water in the water bag into the reverse osmosis membrane. (the power is the pressure of the tap water pipe network as the power for discharging water).
The utility model discloses a RO membrane surface in the reverse osmosis membrane filter core is washed to the pure water of discharge pure water storage bag the inside to make RO membrane waste water end TDS value reduce rapidly. Therefore, the TDS value of the reverse osmosis membrane waste water end can be reduced, the RO membrane is blocked by crystallization of the reverse osmosis membrane waste water end can be reduced, and the service life of the filter element is prolonged.
Simultaneously, because the TDS value of reverse osmosis waste water end is very close with pure water end TDS value, the system is producing the forward osmosis at out of work, and the one end that TDS value concentration is high permeates to the one end that the concentration is low, reaches the first cup of water that the system is out of work for a long time also to be fresh drinkable from this.
Wherein, forward osmosis refers to the phenomenon of water molecule diffusion through a semi-permeable membrane. It permeates from the high water molecule region (i.e., low concentration solution) into the low water molecule region (i.e., high concentration solution) until the water molecules reach a dynamic equilibrium across the semi-permeable membrane.
The reverse osmosis method is a membrane separation operation method which uses pressure difference as driving force to separate solvent from solution. It applies pressure to the feed liquid on one side of the membrane, and when the pressure exceeds its osmotic pressure, the solvent will reverse osmosis against the direction of natural osmosis, thus obtaining a permeated solvent, i.e. permeate, on the low pressure side of the membrane; the high pressure side yields a concentrated solution, i.e., a concentrate.
The utility model discloses a water drive tank pure water washing membrane method, including following mode:
the first mode is as follows: the water outlet faucet is in an open state, meanwhile, the water inlet electromagnetic valve II is opened, tap water is filtered by the composite filter element filter, the booster pump, the reverse osmosis membrane filter element filter and the rear active carbon filter element filter in sequence, and then water is discharged through the purified water outlet pipeline;
and a second mode: when the pressure in the system exceeds the opening pressure of the first check valve, the first check valve is opened, and the pure water filtered in the reverse osmosis membrane filter element enters the pure water storage bag through the first check valve; when the pure water storage bag is full of water, the pressure is greater than the set value of the high-voltage switch, and the machine is stopped;
and a third mode: the water inlet electromagnetic valve I is opened, the water inlet electromagnetic valve III is opened, the water inlet electromagnetic valve IV is closed, tap water enters a tap water container outside the pure water storage bag, water in the pure water storage bag is pressed into the water inlet end of the reverse osmosis membrane filter element through the water inlet electromagnetic valve III under the pressure of external tap water, the wastewater electromagnetic valve is simultaneously opened, pure water scours the wastewater end of the reverse osmosis membrane filter element until the DTS value of the wastewater end is reduced to a reasonable range, pure water washing is completed, and at the moment, the water inlet electromagnetic valve I and the water inlet electromagnetic valve III are closed;
and a fourth mode: when the pure water storage bag stores water, the water inlet electromagnetic valve II and the water inlet electromagnetic valve IV are opened, the water outlet faucet is closed, when the pressure in the system exceeds the opening pressure of the check valve I, pure water enters the pure water storage bag, tap water outside the pure water storage bag is discharged from the water inlet electromagnetic valve IV until the pure water storage bag is full, the pressure reaches a high-voltage switch setting value, the machine is stopped, and at the moment, the water inlet electromagnetic valve IV and the water inlet electromagnetic valve II are closed;
the whole process from the mode one to the mode four is circularly repeated.
More specifically, the overall working principle of the present invention is (the direction indicated by the arrow in fig. 1 is the flow direction):
and the whole machine has a working flow, when the machine is powered on and started, the water inlet electromagnetic valve II 12 is opened, tap water enters the first-stage composite filter element filter 5, pressure is provided for the RO membrane of the reverse osmosis membrane filter element filter 7 by the additional pump, RO pure water enters the post-positioned activated carbon filter element filter 18 at the moment, and the pure water filtered by the post-positioned activated carbon filter element filter 18 flows into the water outlet faucet 3. At this time, if the tap 3 is opened, pure water is always discharged from the tap 3. If the water outlet faucet 3 is in a closed state, once the pressure is greater than 0.5 kg, the first check valve 16 is opened, pure water enters the pure water storage bag 10, after the pure water storage bag 10 is filled with water, the pressure of the water continuously rises until the pressure is greater than the set value of the high-pressure switch 19 (the pressure value of the high-pressure switch 19 is 2-2.5 kg generally), and the machine is stopped. At the moment, the first water inlet electromagnetic valve 11 is opened, tap water enters the outside of the pure water storage bag 10, the fourth water inlet electromagnetic valve 23 is closed, the third water inlet electromagnetic valve 21 is opened, pure water in the pure water storage bag 10 is pressed into the water inlet end of the RO membrane through the pressure of external tap water, the wastewater electromagnetic valve 14 is opened at the same time, pure water washes the wastewater end of the RO membrane until the DTS value of the wastewater end is reduced to a reasonable range, pure water washing of the membrane is completed, and meanwhile, the first water inlet electromagnetic valve 11 and the third water inlet electromagnetic valve 21 are closed. When the pure water storage bag 10 stores water, the water inlet electromagnetic valve II 12 and the water inlet electromagnetic valve II 23 are opened, when the water outlet faucet 3 is closed, when the pressure is greater than 0.5 kilogram, the pure water enters the pure water storage bag 10, tap water outside the pure water storage bag 10 can be discharged from the water inlet electromagnetic valve II 23 until the pure water storage bag 10 is filled with the pure water, the pressure reaches the set value of the high-voltage switch 19, the machine is stopped, the water inlet electromagnetic valve II 23 and the water inlet electromagnetic valve II 12 are closed, and the whole process is repeated in a circulating mode. Therefore, the RO membrane cannot be blocked by crystallization due to the high TDS value of the reverse osmosis membrane waste water end, and the service life of the filter element can be further prolonged; meanwhile, the purity of the first cup of water which is discharged without using the reverse osmosis machine for a long time can be ensured to be very high.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (7)
1. A water-drive tank pure water membrane washing system is characterized by comprising a tap water inlet pipeline and a purified water outlet pipeline, wherein a water inlet of the tap water inlet pipeline is connected with tap water, and a water outlet of the purified water outlet pipeline is connected with a water outlet tap; wherein the content of the first and second substances,
the water outlet of the tap water inlet pipeline is divided into two branches, one branch of the tap water inlet pipeline is sequentially connected with the composite filter element filter, the booster pump and the reverse osmosis membrane filter element filter through a pipeline I at the top according to the water flow direction, the other branch of the tap water inlet pipeline is directly connected to a water inlet at the top of the tap water container through a pipeline II at the bottom according to the water flow direction, and a pure water storage bag is arranged in the tap water container; a first water inlet electromagnetic valve is arranged on the pipeline II, and a second water inlet electromagnetic valve is arranged on the pipeline I between the composite filter element filter and the booster pump; a concentrated water outlet of the reverse osmosis membrane filter element filter is connected with a concentrated water outlet pipe, and a pure water outlet is connected with a pure water outlet pipe; a wastewater electromagnetic valve is arranged on the concentrated water outlet pipe; the pure water outlet pipe extends upwards, the outlet at the top end of the pure water outlet pipe is divided into two branches, one pure water outlet pipe I is arranged above the concentrated water outlet pipe and connected to the inlet at the top of the pure water storage bag, and a check valve I is mounted on the pure water outlet pipe I; the other pure water outlet pipe II is arranged above the pipeline I and is connected to a water inlet of a rear activated carbon filter element filter, a water outlet of the rear activated carbon filter element filter is connected with the purified water outlet pipeline, and a high-voltage switch is mounted on the purified water outlet pipeline; the inlet at the top of the pure water storage bag is connected with a third pipeline extending upwards, the third pipeline is arranged above the pure water outlet pipe and is connected to the first pipeline between the booster pump and the reverse osmosis membrane filter element filter, and a third water inlet electromagnetic valve is mounted on the third pipeline; and a water outlet at the top of the tap water container is connected with a water outlet of the concentrated water outlet pipe through a fourth pipeline, and a fourth water inlet electromagnetic valve is installed on the fourth pipeline.
2. The water-drive-tank pure water membrane washing system as recited in claim 1, wherein a first TDS probe is further installed on the first pipeline between the composite filter cartridge filter and the booster pump, and the first TDS probe is located on a side of the second water inlet solenoid valve close to the composite filter cartridge filter.
3. The water-drive-tank pure water membrane washing system as recited in claim 2, wherein the second pure water outlet pipe is provided with a second TDS probe.
4. The water-drive tank pure water membrane washing system as recited in claim 1, further comprising a second check valve installed on the purified water outlet pipeline, wherein the second check valve is located on a side of the high-pressure switch close to the rear activated carbon filter element filter, and an opening pressure of the second check valve is smaller than that of the first check valve.
5. The system for washing with pure water in a water-driven tank as recited in claim 4, wherein the first check valve has an opening pressure of 0.5 kg.
6. The system for washing with pure water in a water-driven tank according to claim 1, wherein the pressure value of the high-voltage switch is 2-2.5 kg.
7. The system of claim 1, wherein the composite cartridge filter is integrated with the post-activated carbon cartridge filter in a single structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222727247.6U CN218435432U (en) | 2022-10-17 | 2022-10-17 | Water drive jar pure water film cleaning system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222727247.6U CN218435432U (en) | 2022-10-17 | 2022-10-17 | Water drive jar pure water film cleaning system |
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| CN218435432U true CN218435432U (en) | 2023-02-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115417520A (en) * | 2022-10-17 | 2022-12-02 | 广州沃刻科技有限公司 | Water-drive tank pure water film washing system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115417520A (en) * | 2022-10-17 | 2022-12-02 | 广州沃刻科技有限公司 | Water-drive tank pure water film washing system and method |
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