CN111892129A - Disinfection system capable of directly generating ozone water in water pipeline and provided with start-stop control device - Google Patents
Disinfection system capable of directly generating ozone water in water pipeline and provided with start-stop control device Download PDFInfo
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- CN111892129A CN111892129A CN202010920461.6A CN202010920461A CN111892129A CN 111892129 A CN111892129 A CN 111892129A CN 202010920461 A CN202010920461 A CN 202010920461A CN 111892129 A CN111892129 A CN 111892129A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/4618—Devices therefor; Their operating or servicing for producing "ionised" acidic or basic water
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
- A61L2/183—Ozone dissolved in a liquid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/237—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
- B01F23/2376—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media characterised by the gas being introduced
- B01F23/23761—Aerating, i.e. introducing oxygen containing gas in liquids
- B01F23/237613—Ozone
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/13—Ozone
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/02—Process control or regulation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/4618—Devices therefor; Their operating or servicing for producing "ionised" acidic or basic water
- C02F2001/46185—Devices therefor; Their operating or servicing for producing "ionised" acidic or basic water only anodic or acidic water, e.g. for oxidizing or sterilizing
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/4612—Controlling or monitoring
- C02F2201/46125—Electrical variables
- C02F2201/46135—Voltage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/4612—Controlling or monitoring
- C02F2201/46145—Fluid flow
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Health & Medical Sciences (AREA)
- Water Supply & Treatment (AREA)
- General Chemical & Material Sciences (AREA)
- Automation & Control Theory (AREA)
- Inorganic Chemistry (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The invention discloses a disinfection system for directly generating ozone water in a water pipeline with a start-stop control device, which comprises an ozone water generator and a top seat movably connected with the ozone water generator, and is characterized in that a generator control panel and the start-stop control device are arranged in the top seat, the start-stop control device comprises a flow switch, a flow switch signal line is connected with the generator control panel, and a top seat water inlet of the top seat is connected with a top seat water outlet of the top seat through a flow switch water inlet, a flow switch water outlet, an ozone water generator water inlet, an ozone water generator water outlet and a pipeline; the ozone water generator is connected with the generator control panel through a connecting wire, and the generator control panel is connected with an external power supply through a power wire. The invention senses the water flow change, directly generates ozone water according to the requirement and improves the convenience of users; the sensitivity of the flow switch is ensured, and the maximum water flow range is also improved.
Description
Technical Field
The invention relates to a disinfection system capable of directly generating ozone water in a water pipeline and provided with a start-stop control device, belonging to the technical field of electrolytic ozone water generators.
Background
The water pipeline can gradually generate bacteria and attach to the pipe wall in the using process, and the ozone water has the advantages of high-efficiency sterilization and no residue, and is the first scheme of sterilization and disinfection. At present, the ozone water is generated by mixing ozone gas with water, the ozone gas is generally manufactured by a high-voltage discharge method and a low-voltage electrolysis method, namely an ozone water generator for generating ozone by electrolyzing water, the anode material of the ozone water generator mostly adopts lead dioxide, and the lead dioxide is extremely easy to be poisoned to reduce the catalytic activity, so that tap water cannot be directly used as electrolysis water, and pure water also needs to be electrolyzed to generate ozone gas to be mixed with water, so that the ozone water equipment must be provided with a pure water device and a mixing device, the complexity of the equipment is increased, the volume of the equipment is increased, and the cost of the equipment is increased.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a disinfection system for directly generating ozone water in a water pipeline with a start-stop control device.
The technical scheme provided by the invention is as follows: the system is characterized in that a generator control panel and a start-stop control device are arranged in the top seat, the start-stop control device comprises a flow switch, a signal line of the flow switch is connected with the generator control panel, and a water inlet of the top seat is connected with a water outlet of the top seat through a water inlet of the flow switch, a water outlet of the flow switch, a water inlet of a generator of the ozone water generator, a water outlet of the generator of the ozone water generator and a pipeline; the ozone water generator is connected with the generator control panel through a connecting wire, and the generator control panel is connected with an external power supply through a power wire.
Furthermore, the top seat water inlet of the top seat is connected with the water inlet of the flow switch through a pipeline, the water outlet of the flow switch is connected with the generator water inlet of the ozone water generator through a pipeline, and the generator water outlet of the ozone water generator is connected with the top seat water outlet of the top seat through a pipeline.
Furthermore, the start-stop control device further comprises a damping valve, a water inlet of the damping valve is connected with a top seat water inlet of the top seat through a pipeline, and a water outlet of the damping valve is connected with a top seat water outlet of the top seat through a pipeline.
Furthermore, the start-stop control device further comprises a damping valve, a top seat water inlet of the top seat is respectively connected with a water inlet of the flow switch and a water inlet of the damping valve through pipelines, a water outlet of the damping valve is connected with a generator water inlet of the ozone water generator through a pipeline, and a generator water outlet of the ozone water generator and a water outlet of the flow switch are connected with a top seat water outlet of the top seat through pipelines.
The invention has the beneficial effects that: the automatic start-stop device with the water flow sensing function senses the change of the water flow by adopting the flow switch, directly generates ozone water according to the requirement and improves the convenience of a user; and a waterway channel with a damping valve is added, so that the sensitivity of the flow switch is ensured, and the maximum water flow range is enlarged.
Drawings
FIG. 1 is a schematic diagram of a connection structure of a first embodiment of the present invention;
FIG. 2 is a schematic view of a connection structure of a second embodiment of the present invention;
FIG. 3 is a schematic view of a connection structure according to a third embodiment of the present invention; Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings in which:
example 1: as shown in fig. 1, the water pipeline disinfection system with start-stop control device for directly generating ozone water comprises an ozone water generator 1 and a top seat 2 movably connected with the ozone water generator, wherein a generator control plate 2-2 and a start-stop control device are arranged in the top seat 2, the start-stop control device comprises a flow switch 2-3, and a signal line of the flow switch 2-3 is connected with the generator control plate 2-2; a top seat water inlet 2-1-2 of the top seat 2 is connected with a water inlet of a flow switch 2-3 through a pipeline, a water outlet of the flow switch 2-3 is connected with a generator water inlet of an ozone water generator 1 through a pipeline, and a generator water outlet of the ozone water generator 1 is connected with a top seat water outlet 2-1-3 of the top seat 2 through a pipeline; the ozone water generator 1 is connected with a generator control panel 2-3 through a connecting lead 2-5, and the generator control panel 2-3 is connected with an external power supply through a power lead 2-6.
When the water-saving generator is used, water is firstly introduced and electrified, when water flows in a pipeline, the water with the conductivity larger than 30 [ mu ] s/cm enters the generator through the water inlet 2-1-2 of the top seat and the water inlet of the generator, a signal of the flow switch 2-3 is transmitted to the generator control panel 2-2, the generator control panel 2-2 provides constant current power supply for the generator through a generator connecting line, and the generator is started to work within the power supply voltage range of 3.5-12V. Under the action of the electric field, water is electrolyzed, and oxygen ions generate ozone and oxygen microbubbles under the action of the anode catalyst. The ozone micro-bubbles are quickly dissolved in water to directly generate ozone water. The ozone water flows into the water outlet 2-1-3 of the top seat through the water outlet of the generator and is used for removing the biomembrane on the pipe wall and sterilizing and disinfecting the water in the pipeline. When the water in the pipeline stops flowing, the generator control panel 2-2 can immediately stop supplying power to the ozone water generator 1 after obtaining a water cut-off signal; if it is desired to obtain ozone water with higher concentration in the next usage period, the generator control board 2-2 is set to continue to supply power to the ozone water generator 1 for a while and then stop supplying power, preferably with a delay of 10 seconds, so that the ozone water generator 1 stores high concentration ozone water therein, and high concentration ozone water is instantly supplied in the next usage period to meet some application fields.
Example 2: as shown in fig. 2, the water pipeline disinfection system with start-stop control device for directly generating ozone water comprises an ozone water generator 1 and a top seat 2 movably connected with the ozone water generator, wherein a generator control plate 2-2 and a start-stop control device are arranged in the top seat 2, the start-stop control device comprises a flow switch 2-3 and a damping valve 2-4, and a signal line of the flow switch (2-3) is connected with the generator control plate (2-2); the top seat water inlet 2-1-2 of the top seat 2 is respectively connected with the water inlet of the flow switch 2-3 and the water inlet of the damping valve 2-4 through pipelines, the water outlet of the flow switch 2-3 is connected with the generator water inlet of the ozone water generator 1 through a pipeline, and the generator water outlet of the ozone water generator 1 and the water outlet of the damping valve 2-4 are both connected with the top seat water outlet 2-1-3 of the top seat 2 through pipelines. The ozone water generator 1 is connected with a generator control panel 2-3 through a connecting lead 2-5, and the generator control panel 2-3 is connected with an external power supply through a power lead 2-6.
When the water flow control device is used, water is firstly introduced and electrified, when water flows in a pipeline, water with the conductivity larger than 30 mu s/cm is divided into two paths through the top seat water inlet 2-1-2, one path directly enters the top seat water outlet 2-1-3 through the damping valve 2-2, the other path enters the generator through the flow switch 2-3 and the generator water inlet, the damping valve 2-2 has the function of ensuring that the flow switch 2-3 is divided into enough water flow, so that the flow switch 2-3 is more sensitive, signals of the flow switch 2-3 are transmitted to the generator control panel 2-2, the generator control panel 2-2 provides constant current power supply for the generator through a generator connecting line, and the generator is started to work. Under the action of the electric field, water is electrolyzed, and oxygen ions generate ozone and oxygen microbubbles under the action of the anode catalyst. The ozone micro-bubbles are quickly dissolved in water to directly generate ozone water. The ozone water is converged into the water outlet 2-1-3 of the top seat through the water outlet of the generator and flows out together with the water of the damping valve for removing the biomembrane on the pipe wall and sterilizing and disinfecting the water of the pipeline. When the water in the pipeline stops flowing, the generator control panel 2-2 can immediately stop supplying power to the ozone water generator 1 after obtaining a water cut-off signal; if it is desired to obtain ozone water with higher concentration in the next usage period, the generator control board 2-2 is set to continue to supply power to the ozone water generator 1 for a while and then stop supplying power, preferably with a delay of 10 seconds, so that the ozone water generator 1 stores high concentration ozone water therein, and high concentration ozone water is instantly supplied in the next usage period to meet some application fields.
Example 3: as shown in fig. 3, the water pipeline disinfection system with start-stop control device for directly generating ozone water comprises an ozone water generator 1 and a top seat 2 movably connected with the ozone water generator, wherein a generator control plate 2-2 and a start-stop control device are arranged in the top seat 2, the start-stop control device comprises a flow switch 2-3 and a damping valve 2-4, and a signal line of the flow switch (2-3) is connected with the generator control plate (2-2); the top seat water inlet 2-1-2 of the top seat 2 is respectively connected with the water inlet of the flow switch 2-3 and the water inlet of the damping valve 2-4 through pipelines, the water outlet of the damping valve 2-4 is connected with the generator water inlet of the ozone water generator 1 through a pipeline, and the generator water outlet of the ozone water generator 1 and the water outlet of the flow switch 2-3 are both connected with the top seat water outlet 2-1-3 of the top seat 2 through pipelines. The ozone water generator 1 is connected with a generator control panel 2-3 through a connecting lead 2-5, and the generator control panel 2-3 is connected with an external power supply through a power lead 2-6.
When the water flow control device is used, water is firstly introduced and electrified, when water flows in a pipeline, water with the conductivity larger than 30 mu s/cm is divided into two paths through the water inlet 2-1-2 of the top seat, one path directly enters the water outlet 2-1-3 of the base through the flow switch 2-3, the other path enters the generator through the damping valve 2-2 and the water inlet of the generator, the damping valve 2-2 has the function of ensuring that the flow switch 2-3 is divided into enough water flow, so that the flow switch 2-3 is more sensitive, signals of the flow switch 2-3 are transmitted to the generator control panel 2-2, the generator control panel 2-2 provides constant current power supply for the generator through a generator connecting line, and the generator is started to work. Under the action of the electric field, water is electrolyzed, and oxygen ions generate ozone and oxygen microbubbles under the action of the anode catalyst. The ozone micro-bubbles are quickly dissolved in water to directly generate ozone water. The ozone water flows into the water outlet 2-1-3 of the top seat through the water outlet of the generator and flows out together with the water of the flow switch for removing the biomembrane on the pipe wall and sterilizing and disinfecting the water of the pipeline. When the water in the pipeline stops flowing, the generator control panel 2-2 can immediately stop supplying power to the ozone water generator 1 after obtaining a water cut-off signal; if it is desired to obtain ozone water with higher concentration in the next usage period, the generator control board 2-2 is set to continue to supply power to the ozone water generator 1 for a while and then stop supplying power, preferably with a delay of 10 seconds, so that the ozone water generator 1 stores high concentration ozone water therein, and high concentration ozone water is instantly supplied in the next usage period to meet some application fields.
It should be understood that parts of the specification not set forth in detail are well within the prior art. The above examples are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (4)
1. A water pipeline disinfection system with a start-stop control device for directly generating ozone water comprises an ozone water generator (1) and a top seat (2) movably connected with the ozone water generator, the device is characterized in that a generator control panel (2-2) and a start-stop control device are arranged in a top seat (2), the start-stop control device comprises a flow switch (2-3), a signal line of the flow switch (2-3) is connected with the generator control panel (2-2), and a top seat water inlet (2-1-2) of the top seat (2) is connected with a top seat water outlet (2-1-3) of the top seat (2) through a water inlet of the flow switch (2-3), a water outlet of the flow switch (2-3), a generator water inlet of an ozone water generator (1), a generator water outlet of the ozone water generator (1) and a pipeline; the ozone water generator (1) is connected with a generator control panel (2-3) through a connecting lead (2-5), and the generator control panel (2-3) is connected with an external power supply through a power supply lead (2-6).
2. The system for disinfecting water directly generating ozone in water pipe with start-stop control device according to claim 1, characterized in that the top seat water inlet (2-1-2) of the top seat (2) is connected with the water inlet of the flow switch (2-3) through a pipeline, the water outlet of the flow switch (2-3) is connected with the generator water inlet of the ozone water generator (1) through a pipeline, and the generator water outlet of the ozone water generator (1) is connected with the top seat water outlet (2-1-3) of the top seat (2) through a pipeline.
3. The system for disinfecting water by directly generating ozone water in a water pipeline with the start-stop control device according to claim 2, characterized in that the start-stop control device further comprises a damping valve (2-4), a water inlet of the damping valve (2-4) is connected with a top seat water inlet (2-1-2) of the top seat (2) through a pipeline, and a water outlet of the damping valve (2-4) is connected with a top seat water outlet (2-1-3) of the top seat (2) through a pipeline.
4. The system for disinfecting water with ozone directly generated in a water pipeline with the start-stop control device according to claim 1, characterized in that the start-stop control device further comprises a damper valve (2-4), a top seat water inlet (2-1-2) of the top seat (2) is respectively connected with a water inlet of the flow switch (2-3) and a water inlet of the damper valve (2-4) through pipelines, a water outlet of the damper valve (2-4) is connected with a generator water inlet of the ozone water generator (1) through a pipeline, and a generator water outlet of the ozone water generator (1) and a water outlet of the flow switch (2-3) are both connected with a top seat water outlet (2-1-3) of the top seat (2) through pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010920461.6A CN111892129A (en) | 2020-09-04 | 2020-09-04 | Disinfection system capable of directly generating ozone water in water pipeline and provided with start-stop control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010920461.6A CN111892129A (en) | 2020-09-04 | 2020-09-04 | Disinfection system capable of directly generating ozone water in water pipeline and provided with start-stop control device |
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| Publication Number | Publication Date |
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| CN111892129A true CN111892129A (en) | 2020-11-06 |
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| CN202010920461.6A Pending CN111892129A (en) | 2020-09-04 | 2020-09-04 | Disinfection system capable of directly generating ozone water in water pipeline and provided with start-stop control device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113981472A (en) * | 2021-09-29 | 2022-01-28 | 珠海格力电器股份有限公司 | Ozone water generating device and ozone water preparation method |
| US20220234921A1 (en) * | 2021-01-28 | 2022-07-28 | Yantai United Ozonetec Corporation | Disinfection system capable of directly generating ozone water in water pipe with on-off control device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2165978A1 (en) * | 2008-09-19 | 2010-03-24 | SOL-UV Technologie & Entwicklungs-GmbH | Assembly and method for chemical and physical preparation of water with UV radiation |
| CN207980054U (en) * | 2017-06-23 | 2018-10-19 | 贾箬 | A kind of fixed cooling disinfecting, deodorizing device |
| CN210340432U (en) * | 2019-07-03 | 2020-04-17 | 百特环保科技（烟台）有限公司 | Disinfection system for directly generating ozone water in water pipeline |
-
2020
- 2020-09-04 CN CN202010920461.6A patent/CN111892129A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2165978A1 (en) * | 2008-09-19 | 2010-03-24 | SOL-UV Technologie & Entwicklungs-GmbH | Assembly and method for chemical and physical preparation of water with UV radiation |
| CN207980054U (en) * | 2017-06-23 | 2018-10-19 | 贾箬 | A kind of fixed cooling disinfecting, deodorizing device |
| CN210340432U (en) * | 2019-07-03 | 2020-04-17 | 百特环保科技（烟台）有限公司 | Disinfection system for directly generating ozone water in water pipeline |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220234921A1 (en) * | 2021-01-28 | 2022-07-28 | Yantai United Ozonetec Corporation | Disinfection system capable of directly generating ozone water in water pipe with on-off control device |
| CN113981472A (en) * | 2021-09-29 | 2022-01-28 | 珠海格力电器股份有限公司 | Ozone water generating device and ozone water preparation method |
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Application publication date: 20201106 |