CN216663241U - Generator for preparing ozone by electrolyzing water - Google Patents
Generator for preparing ozone by electrolyzing water Download PDFInfo
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- CN216663241U CN216663241U CN202121106484.XU CN202121106484U CN216663241U CN 216663241 U CN216663241 U CN 216663241U CN 202121106484 U CN202121106484 U CN 202121106484U CN 216663241 U CN216663241 U CN 216663241U
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 230000007420 reactivation Effects 0.000 claims abstract description 12
- 238000004140 cleaning Methods 0.000 claims abstract description 11
- 239000010963 304 stainless steel Substances 0.000 claims description 8
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 8
- 239000012528 membrane Substances 0.000 claims 1
- 238000002360 preparation method Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 12
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 10
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 238000005868 electrolysis reaction Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- 229910052719 titanium Inorganic materials 0.000 description 5
- OQBLGYCUQGDOOR-UHFFFAOYSA-L 1,3,2$l^{2}-dioxastannolane-4,5-dione Chemical compound O=C1O[Sn]OC1=O OQBLGYCUQGDOOR-UHFFFAOYSA-L 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 4
- 210000004027 cell Anatomy 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 229910001887 tin oxide Inorganic materials 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000005708 Sodium hypochlorite Substances 0.000 description 2
- -1 carbonate anions Chemical class 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000008235 industrial water Substances 0.000 description 2
- 239000001095 magnesium carbonate Substances 0.000 description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 230000003716 rejuvenation Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- SXDBWCPKPHAZSM-UHFFFAOYSA-M bromate Inorganic materials [O-]Br(=O)=O SXDBWCPKPHAZSM-UHFFFAOYSA-M 0.000 description 1
- SXDBWCPKPHAZSM-UHFFFAOYSA-N bromic acid Chemical compound OBr(=O)=O SXDBWCPKPHAZSM-UHFFFAOYSA-N 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229940011871 estrogen Drugs 0.000 description 1
- 239000000262 estrogen Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Landscapes
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The utility model provides a generator for preparing ozone by electrolyzing water. The electrolytic water preparation ozone generator comprises: the device comprises a working anode, a working cathode, a working power supply, a reactivation power supply and a reactivation cathode; the revived cathode is used to clean deposits from the working cathode. The generator for preparing ozone by electrolyzing water can continuously prepare ozone of ozone while cleaning the cathode.
Description
Technical Field
The utility model relates to an ozone generator, in particular to a generator for preparing ozone by electrolyzing water, belonging to the technical field of ozone generators.
Background
Ozone (O)3) Can dissolve cell membranes of bacteria, viruses and pathogens, thereby eliminating most microorganisms. Because of the short life of ozone, the effectiveness is fast and there is no opportunity for microorganisms to develop resistance to ozone. Ozone generatorThe safety concern is most often its pungent odor, which can form bromate (a carcinogen) with bromide. The ozone can be generated without leakage by using water as the source of ozone and electrolysis, and the ozone can be produced as required. The electrolytic water ozone generator can be designed into various portable devices and can treat industrial water recovery and sewage through fixed modules. Ozone is costly in industrial applications and there is a need for efficient and continuous ways to produce ozone and to use materials or devices to increase the performance of the ozone in conjunction.
The electrolyzed water ozone generator relies on the characteristics of the catalyst sprayed on the anode to achieve its high performance, low cost and long service life. In practice the three above characteristics are interrelated and if the catalyst can produce ozone in high performance and high yield, the other two requirements will also be present. High-capacity water electrolysis ozone generators must rely on good catalysts whose performance directly affects the useful life of the anode. A cooperatively optimized anode may use economical 304 stainless steel as the cathode in the cell. Except for Fe2+And Mn2+Based on Sb, Ni-SnO, which is not otherwise harmful in the electrolytic water2The anode of (2) does not need maintenance. The metal ions will form a permanent oxide deposit on the anode, rendering the anode inoperable. On the other hand, stainless steel cathodes are prone to scaling and require regular maintenance to ensure proper ozone generation.
The most common fouling in the electrolysis of stainless steel cathodic water is Ca2+/Mg2+With carbonate anions (CO)3 2-) formed calcium carbonate and magnesium carbonate precipitate to form a deposit in which all ions can travel in a flow in the water. There are two methods of removing carbonate deposits, chemical or electrolytic. Chemically CaCO3/MgCO3Can be dissolved and removed by an aqueous citric acid solution (chelating agent). But cleaning the cathode using a chemical reaction may require interrupting the operation of the ozone plant. In addition, during electrolysis, the polarity of the anode and cathode in the electrolytic cell is reversed to dissolve the deposit deposited on the cathode, and the cathode in the reversed state is temporarily changed into the anode. In the prior art, patents issued to Malkin (US4088550) and Jansen (US4306952) relate to electrode inversion. US4088550 is the in situ production of sodium hypochlorite (NaClO) or bleach, wherein the cathode is rendered functional using electrode reversal techniques. US4306952 uses a technique of inverting chlorine-containing salts and electrodes, the purpose of which is to produce chlorine (Cl) in swimming pools2) Is used for sterilizing and disinfecting the site. The effect that polarity inversion can be applied in different fields may be different in different applications. For example, Yang et al, in 2017, volume 422, pages 20260 and 20268, International Journal of Hydrogen Energy, mentioned the use of electrode reversal to maximize Hydrogen production. Recently, Maher et al in environmental engineering science 2020, volume 37, pages 99-108 mention electrode reversal technology for the treatment of wastewater containing biological contaminants and compounds of estrogens.
Ozone is a more effective and environmentally friendly disinfectant than sodium hypochlorite and chlorine. Similar to other water electrolysis techniques, the ozonated water electrolysis generator can also perform cathode maintenance using a polarity reversal technique of "real-time, no chemical addition and uninterrupted plant operation". But with Sb, Ni-SnO added to titanium as a base material2Cannot be of negative polarity because of SnO in the coating of its surface if of negative polarity2Will immediately be reduced to Sn and the anode will be irreparably damaged. Therefore, Sb, Ni-SnO is coated on the titanium substrate2Does not participate in the operation of the cathode with the electrodes reversed for electrolytic descaling and reduces the possibility of it becoming negative.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problems, an object of the present invention is to provide an ozone generator capable of continuously producing ozone while cleaning a cathode.
In order to achieve the above technical object, the present invention provides a generator for producing ozone by electrolyzing water, the generator comprising: the device comprises a working anode, a working cathode, a working power supply, a reactivation power supply and a reactivation cathode; the revived cathode is used to clean deposits from the working cathode.
In one embodiment of the utility model, the revitalizing cathode is a single sheet of 304 stainless steel.
In one embodiment of the utility model, the working anode and the working cathode are spaced apart by a fixed gap.
In one embodiment of the utility model, the fixed gap is 1mm to 2 mm.
In one embodiment of the utility model, the fixed gap is provided with an insulating spacer having a thickness of 1mm to 2 mm.
In one embodiment of the utility model, no separator is provided between the working anode and the working cathode.
In one embodiment of the present invention, the electrolyzed water producing ozone generator has N working anodes and N +1 working cathodes.
In one embodiment of the utility model, one working anode is arranged between every two working cathodes.
In one embodiment of the utility model, the working cathode is 304 stainless steel. The working anode is a titanium substrate coated with Sb, Ni and tin oxide on the surface; specifically, tin oxide (SnO)2) The precursor of (A) is stannous oxalate (SnC)2O4)。
In one embodiment of the utility model, the operating voltage for ozone production is less than 24 VDC. The preparation of ozone requires that a large current is provided by an ultra-capacitor, and the large current provided by the ultra-capacitor is controlled by Pulse Width Modulation (PWM); wherein, the pulse frequency of the PWM is 100Hz-10000 Hz.
In one embodiment of the present invention, the polarity reversal may be controlled according to a predetermined frequency and a predetermined duration. The polarity reversal is carried out at a high voltage and a low current. The recovery voltage for polarity reversal is higher than 24 VDC.
The generator for preparing ozone by electrolyzing water, which is disclosed by the utility model, is particularly used for preparing ozone, and comprises the following steps of:
connecting the working anodes connected in parallel to the anode of a working power supply, and connecting the working cathodes connected in parallel to the cathode of the working power supply to prepare ozone;
when the surface of the working cathode has deposits which are gradually accumulated, the restoring cathode is adopted to maintain the activity of the restoring working cathode in a polarity reversing mode, and the method comprises the following steps:
connecting the negative pole of the reactivation power supply with the reactivation cathode, connecting the positive pole of the reactivation power supply with the working cathode, disconnecting the current of the working anode and removing the deposit on the working cathode.
The generator for preparing ozone by electrolyzing water of the utility model Electrolyzes Ozone (EO)3) The power supply of (2) is added with a working cathode which is activated by a recovery cathode, and can continuously generate ozone while cleaning the working cathode. Is beneficial to be applied to the disinfection of clothes, appliances, medical tools and the like with biological pollution, the personal hygiene, the public health, and the treatment and the recovery of industrial water.
In one embodiment of the present invention, when there are a plurality of working electrodes, one working anode and one working cathode are grouped, and the ozone is prepared by sequentially restoring the working anode and the working anode in groups.
The generator for preparing ozone by electrolyzing water can continuously prepare ozone while cleaning the cathode. The working cathode of the ozone generator of the present invention is reversed from the cathode in the ozone generating state to the anode in the recovery state, calcium carbonate (CaCO)3) Will be washed away from the working cathode, leaving a fresh electrode surface for ozone generation. Depending on the number of working cathodes, it can be divided into groups. Some of the fouled working cathode sets can be rejuvenated while the remaining working cathode sets still produce ozone.
The method for preparing ozone by electrolyzing water and simultaneously maintaining the cathode on line is applied to the civil articles, and the civil articles belong to the gap operation, so that the cathode sheet can be maintained only when the machine is stopped, and the method can be used for maintaining the cathode only. And when the ozone machine is continuously operated for 5 hours during the industrial preparation of ozone, the cathode plate begins to have the scaling phenomenon, and the method of the utility model can simultaneously generate ozone when the cathode plate is kept in the process of nourishing the cathode plate.
Drawings
Fig. 1 is a schematic structural view of an ozone generator used in the embodiment of the present invention.
Description of the main figures:
201. an electrolytic water ozone generator; 202. a working anode; 203. a working cathode; 205. restoring the cathode; 220. a working power supply; 240 reactivate the power supply.
Detailed Description
The embodiment provides an electrolytic water preparation ozone generator comprising: working anode 202, working cathode 203, working power supply 220, reactivation power supply 240, and reactivation cathode 220; rejuvenating cathode 220 is used to clean deposits from working cathode 202. The revival cathode 220 is a single piece of 304 stainless steel plate.
The working anodes 202 and the working cathodes 203 are arranged at intervals of a fixed gap, one working anode 202 is arranged between every two working cathodes 203, N working anodes 202 are arranged, N +1 working cathodes 203 are arranged, the fixed gap is 1mm-2mm, and the fixed gap is provided with an insulating gasket with the thickness of 1mm-2 mm. No separator is provided between the working anode 202 and the working cathode 203.
The working cathode 203 is 304 stainless steel. The working anode 202 is a titanium substrate coated with Sb, Ni and tin oxide on the surface; specifically, tin oxide (SnO)2) The precursor of (A) is stannous oxalate (SnC)2O4)。
In the electrolytic cell, the surface coating is Sb, Ni and stannic oxide (SnO)2) The titanium substrate is used as a working anode, and 304 stainless steel is used as a working cathode;
when the ozone generator in the figure 1 is used for preparing ozone, the method specifically comprises the following steps:
EO at any size3In the generator, the working anode connected in parallel is connected to the positive pole of the working power supply, the working cathode connected in parallel is connected to the negative pole of the working power supply, the anode and the cathodes close to the two sides of the anode form an integral unit, and voltage is applied between the electrodes to prepare ozone; all the anodes are connected into one group, the cathodes are arranged into more than one group, wherein one group of cathodes participates in the ozone production process,the other group is used for maintenance and cleaning of the cathode;
when the power source for cathode cleaning (reactivation power source 240) is turned on, the cathode is reactivated as a cathode, and the originally operating cathode is converted into an anode. Under the action of positive polarity, the precipitate (such as calcium carbonate CaCO) on the original working cathode3) Will dissolve as described in equation (6):
CaCO3(s)→CaO(s)+CO2↑。
the solid product CaO is flushed out of the electrolytic cell by flowing electrolyte or tap water. The cathode was cleaned by observing chemically, and CaCO on the cathode was removed using 10% citric acid aqueous solution3The generation of bubbles was also observed, indicating the presence of CO2Escape of (3). Every 48 hours of operation, the cleaning time of the cathode only needs 3-5 minutes, and then the cathode is washed by clean water to obtain a brand-new cathode. Stainless steel cathodic electrolytic cleaning is faster than chemical methods and does not require water rinsing.
The operating voltage for ozone production is below 24 VDC. The preparation of ozone requires that a large current is provided by an ultra-capacitor, and the large current provided by the ultra-capacitor is controlled by Pulse Width Modulation (PWM); wherein, the pulse frequency of the PWM is 100Hz-10000 Hz.
For example, 44 DN100 anode sheets were used, and 11 anode sheets and 13 cathode sheets were used as one group, and the total was divided into 4 groups. When 4 groups produced ozone simultaneously, 9VDC, 60A was applied and the ozone production was 50 mg/min. When one group was used to clean the cathode plates (25VDC) and the other 3 groups were used to apply 9VDC, 45A, the ozone generation was about 36 mg/min. And cleaning for 5 min every 24 hr, and washing with clear water to obtain new cathode.
The above embodiments are only for illustrating the technical idea and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the protection scope of the present invention by this means. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (4)
1. A generator for producing ozone by electrolyzing water, said generator comprising: the device comprises a working anode, a working cathode, a working power supply, a reactivation power supply and a reactivation cathode; the reviving cathode is used for cleaning deposits of the working cathode;
the reviving cathode is a single 304 stainless steel plate;
the working anodes and the working cathodes are arranged at intervals with fixed gaps;
the fixed gap is 1mm-2 mm;
the fixed gap is provided with an insulating gasket with the thickness of 1mm-2 mm;
and no isolating membrane is arranged between the working anode and the working cathode.
2. The generator for producing ozone by electrolyzing water as recited in claim 1, wherein said generator has N working anodes and N +1 working cathodes.
3. The generator for electrolyzing water to produce ozone as recited in claim 1 wherein one working anode is disposed between every two working cathodes.
4. The generator for producing ozone by electrolyzing water as recited in claim 1, wherein said working cathode is 304 stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121106484.XU CN216663241U (en) | 2021-05-22 | 2021-05-22 | Generator for preparing ozone by electrolyzing water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121106484.XU CN216663241U (en) | 2021-05-22 | 2021-05-22 | Generator for preparing ozone by electrolyzing water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216663241U true CN216663241U (en) | 2022-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121106484.XU Active CN216663241U (en) | 2021-05-22 | 2021-05-22 | Generator for preparing ozone by electrolyzing water |
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| Country | Link |
|---|---|
| CN (1) | CN216663241U (en) |
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2021
- 2021-05-22 CN CN202121106484.XU patent/CN216663241U/en active Active
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