CN111560622A - High-concentration weak-acid hypochlorous acid disinfectant generator for manufacturing stable pH value - Google Patents
High-concentration weak-acid hypochlorous acid disinfectant generator for manufacturing stable pH value Download PDFInfo
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- CN111560622A CN111560622A CN202010457232.5A CN202010457232A CN111560622A CN 111560622 A CN111560622 A CN 111560622A CN 202010457232 A CN202010457232 A CN 202010457232A CN 111560622 A CN111560622 A CN 111560622A
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- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 239000000645 desinfectant Substances 0.000 title claims abstract description 39
- 239000002253 acid Substances 0.000 title abstract description 14
- 238000004519 manufacturing process Methods 0.000 title description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 79
- 238000003860 storage Methods 0.000 claims abstract description 53
- 238000001816 cooling Methods 0.000 claims abstract description 22
- 239000001301 oxygen Substances 0.000 claims abstract description 10
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000001257 hydrogen Substances 0.000 claims abstract description 9
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 43
- 239000012528 membrane Substances 0.000 claims description 21
- 238000000926 separation method Methods 0.000 claims description 20
- 230000002378 acidificating effect Effects 0.000 claims description 11
- 150000003839 salts Chemical class 0.000 claims description 8
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 7
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 7
- -1 polytetrafluoroethylene Polymers 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims 2
- 229910045601 alloy Inorganic materials 0.000 claims 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims 1
- 238000005868 electrolysis reaction Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 7
- 239000012266 salt solution Substances 0.000 abstract description 3
- 210000004379 membrane Anatomy 0.000 description 19
- 239000000243 solution Substances 0.000 description 12
- 239000005708 Sodium hypochlorite Substances 0.000 description 9
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 9
- 238000004659 sterilization and disinfection Methods 0.000 description 9
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 239000000460 chlorine Substances 0.000 description 6
- 229910052801 chlorine Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 229910001362 Ta alloys Inorganic materials 0.000 description 4
- 229910001093 Zr alloy Inorganic materials 0.000 description 4
- QBXVTOWCLDDBIC-UHFFFAOYSA-N [Zr].[Ta] Chemical compound [Zr].[Ta] QBXVTOWCLDDBIC-UHFFFAOYSA-N 0.000 description 4
- 230000001954 sterilising effect Effects 0.000 description 4
- PMTRSEDNJGMXLN-UHFFFAOYSA-N titanium zirconium Chemical compound [Ti].[Zr] PMTRSEDNJGMXLN-UHFFFAOYSA-N 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000151 anti-reflux effect Effects 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 238000003113 dilution method Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 206010059866 Drug resistance Diseases 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
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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
- C25B1/24—Halogens or compounds thereof
- C25B1/26—Chlorine; Compounds thereof
-
- 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
-
- 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
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
-
- 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
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
- C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention discloses a generator for producing high-concentration weak-acid hypochlorous acid disinfectant with stable pH value, which mainly comprises an RO device, an electrolytic tank, a cooling device and a hypochlorous acid storage tank; wherein, an anode and a cathode are arranged in the electrolytic cell, and the anode and the cathode are positioned at two opposite sides of the electrolytic cell; the anode side is provided with an oxygen outlet and an anode water outlet, the anode water outlet is connected with a cooling device pipeline, and the cooling device is connected with a hypochlorous acid storage tank pipeline; the cathode side is provided with a hydrogen outlet and a cathode water outlet, and the cathode water outlet pipeline is connected with a cathode water storage tank; the anode water outlet and the cathode water outlet are respectively provided with a pH meter; the salt solution storage tank and the RO device are connected in parallel on the electrolytic bath; the RO device is connected with the pipeline of the electrolytic bath through the RO water storage tank. The invention changes the traditional method for preparing the weak-acid hypochlorous acid disinfectant, directly generates the weak-acid hypochlorous acid disinfectant by electrolysis, and the produced hypochlorous acid disinfectant has stable property.
Description
Technical Field
The invention relates to the technical field of hypochlorous acid disinfectant generating machines, in particular to a high-concentration weak-acid hypochlorous acid disinfectant generating machine for manufacturing a stable pH value.
Background
The hypochlorous acid disinfectant has the characteristics of broad-spectrum sterilization, no toxicity, no stimulation, safety and no residue. Compared with sodium hypochlorite disinfectant widely used in the market, the sodium hypochlorite disinfectant has the advantages of high sterilization capability which is dozens of times, no harm and pollution to human bodies and the environment, no harmful substance residue, availability for mothers and babies, no harm by mouth and no drug resistance. It has been mentioned in the national standards implemented in 2019 that hypochlorous acid disinfectant can be used for disinfection of indoor air, surfaces of secondary water supply equipment, hands, skin and mucous membranes in addition to conventional sterilization and disinfection. In the united states and japan, low-concentration hypochlorous acid liquid has been identified as a food additive. Therefore, as an efficient and safe disinfectant, the disinfectant has great play space in the fields of tableware disinfection, household daily use, medical instruments, vehicles, air disinfection, food disinfection and the like.
The existing methods for producing hypochlorous acid disinfectant can be divided into two types, one is to add an acid solution (such as hydrochloric acid) into a low-concentration sodium hypochlorite solution to generate a hypochlorous acid solution, and to measure the pH value of the hypochlorous acid solution to control the adding amount of the acid solution. The second method is to quantitatively mix two kinds of medicinal liquid with raw water (tap water, etc.) to generate a weakly acidic hypochlorous acid solution, using high-concentration sodium hypochlorite and an acid solution (such as hydrochloric acid, etc.) as raw materials. Both methods have the disadvantages of low production efficiency, discontinuous production, and unstable product properties, concentration and pH value. In the process of producing the hypochlorous acid disinfectant by using the high-concentration sodium hypochlorite, harmful gas chlorine is easily generated once operation is wrong; and sodium hypochlorite has the characteristic of natural oxidative decomposition, the concentration is very unstable, the addition amount of the sodium hypochlorite has to be adjusted by workers, and the production is often adjusted while the sodium hypochlorite is produced, so that the production efficiency is influenced. Meanwhile, sodium hypochlorite is corrosive, and causes damage and pollution to human bodies and natural environments in the production process.
The generation of the hypochlorous acid disinfectant generally needs to be carried out on special equipment, and in general use places, the daily overhaul, maintenance and repair need to be carried out by special workers, and in addition, the price is high, and the weak acidic hypochlorous acid disinfectant is difficult to popularize and use in society.
Disclosure of Invention
In view of the above-mentioned prior art, the present invention provides a generator for producing a highly concentrated weakly acidic hypochlorous acid disinfectant with a stable pH.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a generator for producing high-concentration weak-acid hypochlorous acid disinfectant with stable pH value mainly comprises an RO device, an electrolytic tank, a cooling device and a hypochlorous acid storage tank; wherein,
an anode and a cathode are arranged in the electrolytic cell, and the anode and the cathode are positioned on two opposite sides of the electrolytic cell; the anode side is provided with an oxygen outlet and an anode water outlet, the anode water outlet is connected with a cooling device pipeline, and the cooling device is connected with a hypochlorous acid storage tank pipeline; the cathode side is provided with a hydrogen outlet and a cathode water outlet, and the cathode water outlet pipeline is connected with a cathode water storage tank; the anode water outlet and the cathode water outlet are respectively provided with a pH meter; the pH adjusting liquid storage tank, the salt solution storage tank and the RO device are connected in parallel on the electrolytic bath; the RO device is connected with the pipeline of the electrolytic bath through the RO water storage tank.
In a preferred embodiment of the present invention, the RO water storage tank is followed by a booster pump, a flow meter, and a flow rate adjustment valve.
As a preferable embodiment of the present invention, a backflow prevention valve is installed between the flow rate adjustment valve and the electrolytic cell to prevent backflow.
As a preferable embodiment of the present invention, a gas-liquid separation membrane is provided between the cathode and the anode, and the gas-liquid separation membrane is used to perform gas-liquid separation, thereby stably generating high-concentration electrolyzed water.
Preferably, the gas-liquid separation membrane is made of polytetrafluoroethylene, and the pore diameter of the gas-liquid separation membrane is not less than 0.5 μm.
As a preferred technical scheme of the application, the anode is electrically connected with the positive pole of a power supply, and the cathode is electrically connected with the negative pole of the power supply.
As a preferable technical scheme of the application, quantitative pumps are arranged among the pH adjusting liquid storage tank, the salt solution storage tank and the electrolytic bath.
As a preferred technical scheme of the application, the cathode and the anode are made of zirconium-tantalum alloy or titanium-zirconium alloy.
Advantageous effects
Compared with the prior art, the invention has the advantages that: the invention changes the traditional method for preparing the weak-acid hypochlorous acid disinfectant, directly generates the weak-acid hypochlorous acid disinfectant by electrolysis, and the produced hypochlorous acid disinfectant has stable property (pH4.5-6.5, and the chlorine concentration can be randomly adjusted within 5000 ppm). After the product is produced in a factory, the product is packaged by a sealed container and is transported to a use site in a state of being isolated from air, and the product can be used after being diluted by different times according to requirements at the use site. The user does not need to have the knowledge about the electrolysis device, just opens the tap, and the very high hypochlorous acid antiseptic solution of degerming effect that just can obtain through diluting the device. The dilution method is convenient to use in small-scale scenes, has good sterilization effect, does not pollute the environment and is safe to human bodies. Such highly efficient and safe sterilized water has been widely used in sanitary control.
Drawings
FIG. 1 is a flow chart of an electrolytic device of a generator for producing a high-concentration weak-acidic hypochlorous acid disinfectant with a stable pH value according to the present invention;
FIG. 2 is a diagram showing the configuration of an electrolytic tank of a generator for producing a high-concentration weakly acidic hypochlorous acid disinfectant with a stable pH value according to the present invention;
among them, 10-RO device; 11-a raw water pipeline; 20-RO water storage tank; 21-a pressure pump; 22-a flow meter; 23-a flow regulating valve; 24-an anti-reflux valve; 30-a salt water storage tank; 31-a first fixed displacement pump; 40-pH adjusting liquid storage tank; 41-a second fixed displacement pump; 50-an electrolytic cell; 51-hydrogen outlet; 52-oxygen outlet; 53-gas-liquid separation membrane; 54-a cathode; 55-anode; 56-cathode water storage tank; 57-anode water temporary storage tank; 60-a cooling device; 61-hypochlorous acid storage tank.
Detailed Description
The present invention will be described in further detail with reference to examples. The reagents or instruments used are not indicated by manufacturers, and are regarded as conventional products which can be purchased in the market.
Example 1:
as shown in FIG. 1-2, a generator for producing a high-concentration weak-acidic hypochlorous acid disinfectant with stable pH mainly comprises an RO device 10, an electrolytic bath 50, a cooling device 60 and a hypochlorous acid storage tank 61; wherein, an anode 55 and a cathode 54 are arranged in the electrolytic cell 50, the anode 55 and the cathode 54 are positioned at two opposite sides of the electrolytic cell 50, a gas-liquid separation membrane 53 is arranged between the cathode 54 and the anode 55, the gas-liquid separation membrane 53 is made of Polytetrafluoroethylene (PTEF), and the aperture of the gas-liquid separation membrane 53 is not less than 0.5 μm;
the anode is electrically connected with the positive pole of a power supply, and the cathode is electrically connected with the negative pole of the power supply; the electrode is made of zirconium-tantalum alloy or titanium-zirconium alloy; an oxygen outlet 52 is arranged at the anode 55 side; an anode water outlet is formed in the side of the anode 55 and is connected with a cooling device 60 through a pipeline, and the cooling device 60 is connected with a hypochlorous acid storage tank 61 through a pipeline; the cathode 54 side is provided with a hydrogen outlet 51; the cathode side is also provided with a cathode water outlet, and a pipeline is connected with a cathode water storage tank 56; the anode water outlet and the cathode water outlet are respectively provided with a pH meter;
the pH adjusting liquid storage tank 40, the salt water storage tank 30 and the RO device 10 are connected in parallel on the electrolytic bath 50; the RO apparatus 10 is connected to the electrolytic bath 50 through a RO water storage tank 20 by piping; the RO water storage tank 20 is connected to a pressurizing pump 21, a flow meter 22, and a flow rate adjusting valve 23.
Example 2:
as shown in FIG. 1-2, a generator for producing a high-concentration weak-acidic hypochlorous acid disinfectant with stable pH mainly comprises an RO device 10, an electrolytic bath 50, a cooling device 60 and a hypochlorous acid storage tank 61; wherein, an anode 55 and a cathode 54 are arranged in the electrolytic cell 50, the anode 55 and the cathode 54 are positioned at two opposite sides of the electrolytic cell 50, a gas-liquid separation membrane 53 is arranged between the cathode 54 and the anode 55, the gas-liquid separation membrane 53 is made of polytetrafluoroethylene, and the aperture of the gas-liquid separation membrane 53 is not less than 0.5 μm;
the anode is electrically connected with the positive pole of a power supply, and the cathode is electrically connected with the negative pole of the power supply; the electrode is made of zirconium-tantalum alloy or titanium-zirconium alloy; an oxygen outlet 52 is arranged at the anode 55 side; an anode water outlet is formed in the side of the anode 55 and is connected with a cooling device 60 through a pipeline, and the cooling device 60 is connected with a hypochlorous acid storage tank 61 through a pipeline; the cathode 54 side is provided with a hydrogen outlet 51; the cathode side is also provided with a cathode water outlet, and a pipeline is connected with a cathode water storage tank 56; the anode water outlet and the cathode water outlet are respectively provided with a pH meter;
the pH adjusting liquid storage tank 40, the salt water storage tank 30 and the RO device 10 are connected in parallel on the electrolytic bath 50; the RO apparatus 10 is connected to the electrolytic bath 50 through a RO water storage tank 20 by piping; a pressurizing pump 21, a flow meter 22 and a flow regulating valve 23 are connected behind the RO water storage tank 20; between said flow regulating valve 23 and the electrolytic cell 50 is arranged a valve 24 for preventing reverse-flow.
Example 3:
as shown in FIG. 1-2, a generator for producing a high-concentration weak-acidic hypochlorous acid disinfectant with stable pH mainly comprises an RO device 10, an electrolytic bath 50, a cooling device 60 and a hypochlorous acid storage tank 61; wherein, an anode 55 and a cathode 54 are arranged in the electrolytic cell 50, the anode 55 and the cathode 54 are positioned at two opposite sides of the electrolytic cell 50, a gas-liquid separation membrane 53 is arranged between the cathode 54 and the anode 55, the gas-liquid separation membrane 53 is made of polytetrafluoroethylene, and the aperture of the gas-liquid separation membrane 53 is not less than 0.5 μm;
the anode is electrically connected with the positive pole of a power supply, and the cathode is electrically connected with the negative pole of the power supply; the electrode is made of zirconium-tantalum alloy or titanium-zirconium alloy; an oxygen outlet 52 is arranged at the anode 55 side; an anode water outlet is formed in the side of the anode 55 and is connected with a cooling device 60 through a pipeline, and the cooling device 60 is connected with a hypochlorous acid storage tank 61 through a pipeline; the cathode 54 side is provided with a hydrogen outlet 51; the cathode side is also provided with a cathode water outlet, and a pipeline is connected with a cathode water storage tank 56; the anode water outlet and the cathode water outlet are respectively provided with a pH meter;
the pH adjusting liquid storage tank 40, the salt water storage tank 30 and the RO device 10 are connected in parallel on the electrolytic bath 50; the RO apparatus 10 is connected to the electrolytic bath 50 through a RO water storage tank 20 by piping; a pressurizing pump 21, a flow meter 22 and a flow regulating valve 23 are connected behind the RO water storage tank 20; an anti-reflux valve 24 is arranged between the flow regulating valve 23 and the electrolytic bath 50; a second quantitative pump 41 is arranged between the pH adjusting liquid storage tank 40 and the electrolytic bath 50, and a first quantitative pump 31 is arranged between the salt water storage tank 30 and the electrolytic bath 50.
Brief description of the working principle:
the RO apparatus 10 generates raw water, stores the raw water in an RO water storage tank 20, leads the raw water out by a booster pump 21, adjusts the flow rate of the raw water to a desired value by a flow meter 22 and a flow rate adjustment valve 23, and leads the raw water to a cathode 54 of an electrolytic bath 50; in the raw water pipe 11, an electrolyte salt and a pH adjusting solution hydrochloric acid are added by a first metering pump 31 and a second metering pump 41, respectively, mixed and diluted with raw water, and introduced into an electrolytic cell cathode 54, and then electrolyzed by an anode 55 to produce high-concentration electrolytic water, and the produced high-concentration hypochlorous acid solution is passed through a cooling device 60 and then stored in a hypochlorous acid storage tank 61.
In order to ensure that the pH of the generated high-concentration hypochlorous acid liquid reaches stable pH4.5-6.5, a pH meter is arranged in an electrolysis device to monitor the pH of the hypochlorous acid liquid which is just generated; in order to avoid the deterioration of the pH electrode caused by the corrosion of the high-concentration hypochlorous acid liquid on the pH electrode, the pH value of anode water (the high-concentration hypochlorous acid liquid) is not measured, but the pH value of cathode water led out of the electrolytic bath is measured, so that the adding amount of the pH adjusting liquid is controlled to maintain stable pH; the concentration of the generated hypochlorous acid water was detected by measuring the anode water.
The hydrogen generated by the cathode of the electrolytic cell can influence the contact between the anode electrode plate and the liquid, thereby reducing the electrolytic efficiency; as a countermeasure, high-concentration electrolyzed water was stably produced by gas-liquid separation using a neutral membrane made of PTEF, and the opening of the membrane was not less than 0.5 μm (the permeability of the liquid was not affected).
In addition, air can be introduced by the gas-liquid separation membrane 53, so that the siphon phenomenon caused by the backflow of the high-concentration hypochlorous acid liquid remained in the electrolytic bath to the raw water can be prevented; the backflow preventing valve 24 is provided between the flow rate adjusting valve 23 and the electrolytic bath 50, and may also prevent the backflow; the neutral membrane prevents both hydrogen from entering anode 55 and oxygen from entering cathode 54.
To ensure the safety of the operator, oxygen generated at the anode is removed to the outside of the system through the oxygen outlet 52 by using the gas-liquid separation membrane.
Maintaining the current of the electrolysis operation within a prescribed range in order to maintain the stable generation of high-concentration hypochlorous acid water; the first fixed displacement pump 31 to which the electrolyte (salt) is added is allowed to maintain a current value during the operation, thereby constructing a current control system capable of stably performing electrolysis.
The generation of high-concentration hypochlorous acid liquid requires high current of more than 2A for electrolysis, and a cathode terminal can be obviously heated; as a countermeasure, the external electrode terminal is not in contact with the casing of the PVC electrolytic tank using a heat-resistant material, and the internal electrode terminal is provided at the bottom of the electrolytic tank so as to be in contact with the raw water liquid, thereby keeping the cooling.
In order to prevent corrosion caused by contact of metal products such as a flow meter, a regulating valve, and a pump used in the distribution line with the high-concentration hypochlorous acid liquid, the distribution line is placed at a position higher than the electrolytic bath.
In order to prevent the chlorine concentration of the high-concentration hypochlorous acid solution which is just produced from decreasing due to an excessively high temperature, the chlorine concentration is controlled to be 10 ℃ or lower, preferably 5 ℃ or lower by a predetermined cooling device 60 immediately after the production, and the chlorine concentration is lowered and then filled in a container. In addition, in seasons with high temperature, cold storage measures are required to be set, and the produced high-concentration hypochlorous acid liquid filled into a container is cooled and stored.
Compared with the prior art, the invention has the advantages that: the invention changes the traditional method for preparing the weak-acid hypochlorous acid disinfectant, directly generates the weak-acid hypochlorous acid disinfectant by electrolysis, and the produced hypochlorous acid disinfectant has stable property (the pH is 4.5-6.5, and the chlorine concentration can be randomly adjusted within 5000 ppm). After the product is produced in a factory, the product is packaged by a sealed container and is transported to a use site in a state of being isolated from air, and the product can be used after being diluted by different times according to requirements at the use site. The user does not need to have the knowledge about the electrolysis device, just opens the tap, and the very high hypochlorous acid antiseptic solution of degerming effect that just can obtain through diluting the device. The dilution method is convenient to use in small-scale scenes, has good sterilization effect, does not pollute the environment and is safe to human bodies. Such highly efficient and safe sterilized water has been widely used in sanitary control.
The protection of the present invention is not limited to the above embodiments. Variations and advantages that may occur to those skilled in the art may be incorporated into the invention without departing from the spirit and scope of the inventive concept and the scope of the appended claims is intended to be protected.
Claims (8)
1. A generator for producing a high-concentration weak-acidic hypochlorous acid disinfectant with a stable pH value is characterized by mainly comprising an RO device (10), an electrolytic tank (50), a cooling device (60) and a hypochlorous acid storage tank (61); wherein,
an anode (55) and a cathode (54) are arranged in the electrolytic cell (50), and the anode (55) and the cathode (54) are positioned at two opposite sides of the electrolytic cell (50);
an oxygen outlet (52) and an anode water outlet are formed in the anode (55), the anode water outlet is connected with a cooling device (60) through a pipeline, and the cooling device (60) is connected with a hypochlorous acid storage tank (61) through a pipeline; a hydrogen outlet (51) and a cathode water outlet are formed in the side of the cathode (54), and a cathode water outlet pipeline is connected with a cathode water storage tank (56); the anode water outlet and the cathode water outlet are respectively provided with a pH meter;
the pH adjusting liquid storage tank (40), the salt water storage tank (30) and the RO device (10) are connected on the electrolytic bath (50) in parallel; the RO device (10) is connected with the electrolytic bath (50) through a pipeline of the RO water storage tank (20).
2. The machine for producing a highly concentrated weakly acidic hypochlorous acid disinfectant at a stable pH according to claim 1, wherein said RO water storage tank (20) is followed by a pressurizing pump (21), a flow meter (22), and a flow regulating valve (23).
3. The machine for producing a highly concentrated weakly acidic hypochlorous acid disinfectant at a stable pH according to claim 2, wherein a valve for preventing reverse-flow (24) is provided between said flow control valve (23) and said electrolytic bath (50).
4. The generator for producing a highly concentrated weakly acidic hypochlorous acid disinfectant with stable pH according to claim 1, wherein a gas-liquid separation membrane (53) is provided between said cathode (54) and said anode (55).
5. The generator for producing a highly concentrated weakly acidic hypochlorous acid disinfectant with stable pH according to claim 4, wherein said anode (55) is electrically connected to the positive pole of a power source, and said cathode (53) is electrically connected to the negative pole of the power source.
6. The generator for producing a high-concentration weakly acidic hypochlorous acid disinfectant with a stable pH value according to claim 4 or 5, wherein the gas-liquid separation membrane (53) is made of polytetrafluoroethylene and has a pore size not smaller than 0.5 μm.
7. The generator for producing a highly concentrated weakly acidic hypochlorous acid disinfectant at a stable pH according to claim 1, wherein a constant flow pump is provided between said pH adjusting liquid tank (40), said saline solution tank (30), and said electrolytic bath (50).
8. The generator for producing a highly concentrated weakly acidic hypochlorous acid disinfectant with stable pH according to claim 1, wherein the cathode (54) and the anode (55) are made of zircata alloy or zirca alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010457232.5A CN111560622A (en) | 2020-05-26 | 2020-05-26 | High-concentration weak-acid hypochlorous acid disinfectant generator for manufacturing stable pH value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010457232.5A CN111560622A (en) | 2020-05-26 | 2020-05-26 | High-concentration weak-acid hypochlorous acid disinfectant generator for manufacturing stable pH value |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113215596A (en) * | 2021-05-08 | 2021-08-06 | 广西康巴科技有限公司 | System suitable for industrial production hypochlorous acid sterilized water |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5965009A (en) * | 1996-04-24 | 1999-10-12 | Permelec Electrode Ltd. | Method of producing acid water and electrolytic cell therefor |
| CN1666615A (en) * | 2005-02-02 | 2005-09-14 | 华东理工大学 | Preparation method of high concentration hypochlorous acid disinfecting liquid |
| US20100288626A1 (en) * | 2009-05-18 | 2010-11-18 | Kuan Yu Wen | Electrolysis device for preparation of hypochlorous water |
| WO2013019004A2 (en) * | 2011-08-01 | 2013-02-07 | (주)테크윈 | Apparatus for generating sodium hypochlorite |
| WO2013065797A1 (en) * | 2011-11-04 | 2013-05-10 | クロリンエンジニアズ株式会社 | Method for producing hypochlorite |
| US20140124377A1 (en) * | 2012-11-02 | 2014-05-08 | Tennant Company | Three electrode electrolytic cell and method for making hypochlorous acid |
| CN107668069A (en) * | 2016-08-02 | 2018-02-09 | 宁波净雅德环保科技股份有限公司 | A kind of faintly acid hypochlorous acid thimerosal generation machine for manufacturing variable concentrations |
-
2020
- 2020-05-26 CN CN202010457232.5A patent/CN111560622A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5965009A (en) * | 1996-04-24 | 1999-10-12 | Permelec Electrode Ltd. | Method of producing acid water and electrolytic cell therefor |
| CN1666615A (en) * | 2005-02-02 | 2005-09-14 | 华东理工大学 | Preparation method of high concentration hypochlorous acid disinfecting liquid |
| US20100288626A1 (en) * | 2009-05-18 | 2010-11-18 | Kuan Yu Wen | Electrolysis device for preparation of hypochlorous water |
| WO2013019004A2 (en) * | 2011-08-01 | 2013-02-07 | (주)테크윈 | Apparatus for generating sodium hypochlorite |
| WO2013065797A1 (en) * | 2011-11-04 | 2013-05-10 | クロリンエンジニアズ株式会社 | Method for producing hypochlorite |
| US20140124377A1 (en) * | 2012-11-02 | 2014-05-08 | Tennant Company | Three electrode electrolytic cell and method for making hypochlorous acid |
| CN107668069A (en) * | 2016-08-02 | 2018-02-09 | 宁波净雅德环保科技股份有限公司 | A kind of faintly acid hypochlorous acid thimerosal generation machine for manufacturing variable concentrations |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113215596A (en) * | 2021-05-08 | 2021-08-06 | 广西康巴科技有限公司 | System suitable for industrial production hypochlorous acid sterilized water |
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