US20120073983A1 - Producing apparatus and producing method of hypochlorous acid water - Google Patents
Producing apparatus and producing method of hypochlorous acid water Download PDFInfo
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- US20120073983A1 US20120073983A1 US13/159,109 US201113159109A US2012073983A1 US 20120073983 A1 US20120073983 A1 US 20120073983A1 US 201113159109 A US201113159109 A US 201113159109A US 2012073983 A1 US2012073983 A1 US 2012073983A1
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- water
- hypochlorous acid
- acid water
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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
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
- C02F1/4674—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation with halogen or compound of halogens, e.g. chlorine, bromine
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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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- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
- C02F1/763—Devices for the addition of such compounds in gaseous form
-
- 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
- C02F2201/4611—Fluid flow
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/29—Chlorine compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/043—Treatment of partial or bypass streams
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
Definitions
- the invention relates to a producing apparatus and a producing method of hypochlorous acid water that is effective as sterilizing water.
- a producing apparatus of hypochlorous acid water a producing apparatus constructed such that a raw water feed pipe c is connected from a raw water tank a to an electrolytic vessel b in which no diaphragm exists between an anode and a cathode, and a hydrochloric acid feed pipe e from a hydrochloric acid tank d is connected in communication with the raw water feed pipe c, and hypochlorous acid water having a desired concentration is obtained in the electrolytic vessel b (refer to Jpn. Pat. Appln. KOKAI Publication No. 10-128336).
- symbol f shows a raw water pump interposed in the raw water feed pipe c
- symbol g shows a hydrochloric acid metering pump interposed in the hydrochloric acid feed pipe e
- symbol h shows a discharge pipe of an electrolytically treated liquid from the electrolytic vessel b.
- the conventional hypochlorous acid water producing apparatus has the following problems.
- hypochlorous acid water that can be produced in the electrolytic vessel b Since the amount of hypochlorous acid water that can be produced in the electrolytic vessel b is small, it is difficult to adjust the hypochlorous acid water to a predetermined concentration, and, it is also difficult to adjust hypochlorous acid water so that it has a high concentration and a system is necessary to control the concentration, from which a problem arises in that cost is increased.
- hypochlorous acid water there is a problem in that when raw water being used contains a large amount of organic matters, it is difficult to keep hypochlorous acid in hypochlorous acid water to a predetermined concentration.
- An object of the invention is to provide a producing apparatus and a producing method of hypochlorous acid water that can overcome the problems and obtain hypochlorous acid water having a desired amount of production and a desired concentration.
- a first invention relates to a producing apparatus which includes an electrolytic vessel to which dilute hydrochloric acid is supplied and in which no diaphragm exists between an anode and a cathode for generating a chlorine gas, a storage tank in which water is stored, a circulation pipe into which water flows from the storage tank, in which the water circulates, and from which the water returns into the storage tank, and a mixing pipe which couples between the electrolytic vessel and the circulation pipe, mixes the chlorine gas from the electrolytic vessel with the water in the circulation pipe, and produces hyprochlorous acid water, and, a second invention relates to a producing method which includes a step of generating a chlorine gas by subjecting dilute hydrochloric acid being supplied to an electrolytic treatment in an electrolytic vessel in which no diaphragm exists between an anode and a cathode, and a step of producing hypochlorous acid water having a desired amount of production and a desired concentration by injecting the chlorine gas into the water that circulates in the
- the electrolytic vessel can be made compact and further hypochlorous acid water having a desired concentration can be gradually produced easily by circulating the water in the storage tank until the desired concentration is reached in the same electrolytic vessel and under the same electrolytic condition. Further, hypochlorous acid water having a high concentration can be also produced. According to the method of the invention, anyone can produce hypochlorous acid water having a desired amount of production and a desired concentration simply, easily, safely, and economically.
- FIG. 1 is a piping diagram of an embodiment of a hypochlorous acid water producing apparatus of the invention
- FIG. 2 is a piping diagram of another embodiment of the hypochlorous acid water producing apparatus of the invention.
- FIG. 3 is a piping diagram of a conventional hypochlorous acid water producing apparatus.
- FIG. 1 An embodiment 1 of a hypochlorous acid water producing apparatus of the invention will be explained referring to FIG. 1 .
- reference numeral 1 shows an electrolytic vessel, and the electrolytic vessel 1 has an anode 10 a and a cathode 10 b which are disposed in the electrolytic vessel 1 and between which no diaphragm exists.
- Reference numeral 2 shows a dilute hydrochloric acid tank
- a water feed pipe 3 is coupled between the dilute hydrochloric acid tank 2 and the electrolytic vessel 1
- a dilute hydrochloric acid pump 4 is interposed in the water feed pipe 3 and the dilute hydrochloric acid in the dilute hydrochloric acid tank 2 is supplied to the electrolytic vessel 1 by driving the dilute hydrochloric acid pump 4 .
- Reference numeral 5 shows a storage tank
- 6 shows a circulation pipe
- a flow-in pipe portion 6 a and a flow-out pipe portion 6 b of the circulation pipe 6 are connected to the storage tank 5
- a circulation pump 7 is interposed to an intermediate portion of the circulation pipe 6
- the water in the storage tank 5 flows from the flow-in pipe portion 6 a into the circulation pipe 6
- Reference numeral 8 shows a mixing pipe, an end of the mixing pipe 8 is connected to the electrolytic vessel 1 , and, the other end thereof is connected to a mixing portion A of the intermediate portion of the circulation pipe 6 , and the chlorine gas generated in the electrolytic vessel 1 is mixed with the water which flows in the circulation pipe 6 via the mixing pipe 8 , thereby hypochlorous acid water is produced.
- Reference numeral 9 shows a discharge pipe of hypochlorous acid water
- 10 shows a power supply of the anode 10 a and the cathode 10 b.
- the storage tank 5 has a discharge port (not shown) for discharging the hydrogen gas generated in the electrolytic vessel 1 to the outside.
- the dilute hydrochloric acid in the dilute hydrochloric acid tank 2 is supplied into the electrolytic vessel 1 by driving the dilute hydrochloric acid pump 4 .
- the dilute hydrochloric acid is continuously subjected to an electrolytic treatment by energizing both the anode 10 a and the cathode 10 b dipped into the dilute hydrochloric acid, thereby generating a chlorine gas.
- the water in the storage tank 5 is circulated and flown in the circulation pipe 6 by driving the circulation pump 7 .
- the chlorine gas flows in the mixing pipe 8 , is mixed with the water, which flows in the circulation pipe 6 , at the mixing portion A, and produces hypochlorous acid water which is stored in the storage tank 5 while being produced.
- hypochlorous acid water has a low concentration
- hypochlorous acid water gradually becomes hypochlorous acid water having a high concentration by being mixed with the chlorine gas while repeatedly circulating in the circulation pipe 6 .
- the producing apparatus is continuously operated until the hypochlorous acid water in the storage tank 5 has a desired concentration.
- hypochlorous acid water having a desired high concentration can be obtained.
- hypochlorous acid water produced in the storage tank 5 has pH of 2.0 or more to 7.0 or less and preferably has pH of 5.0 or more to 6.5 or less than.
- hypochlorous acid water has a concentration of 2 ppm or more and preferably has a concentration of 10-600 ppm.
- hypochlorous acid water having a low concentration of 2 ppm to hypochlorous acid water having a high concentration of 600 ppm to about 1000 ppm can be produced.
- hypochlorous acid water having an optional concentration can be produced from a small amount to a large amount by variously adjusting the capacity of the storage tank 5 , the circulation amount or the circulation time of the liquid in the circulation pipe 6 , or the amount of the chlorine gas generated in the electrolytic vessel 1 .
- hypochlorous acid water in a preferable range of pH can be easily obtained by neutralizing the water by mixing an alkaline pH adjuster containing Ca, Mg, Na, K, and the like with the water in the storage tank, and, hypochlorous acid water in the preferable range of pH can be easily obtained by replenishing hypochlorous acid in the amount consumed by the organic matters.
- FIG. 2 An embodiment 2 of the hypochlorous acid water producing apparatus of the invention will be explained referring to FIG. 2 .
- a first storage tank 5 a and a second storage tank 5 b are installed, the flow-in pipe portion 6 a of the circulation pipe 6 is branched to a first flow-in branch pipe portion 6 aa and a second flow-in branch pipe portion 6 ab , and, the flow-out pipe portion 6 b of the circulation pipe 6 is branched to a first flow-out branch pipe portion 6 ba and a second flow-out branch pipe portion 6 bb , the first flow-in branch pipe portion 6 aa and the first flow-out branch pipe portion 6 ba are connected to the first storage tank 5 a , and, the second flow-in branch pipe portion 6 ab and the second flow-out branch pipe portion 6 bb are connected to the second storage tank 5 b , further, switch valves 11 a , 11 b are interposed to a branch portion of the flow-in pipe portion 6 a and a branch portion of the flow-out pipe portion 6 b , respectively, the switch valves 11 a , 11 b are switched to
- hypochlorous acid water having a desired concentration is produced in the first storage tank 5 a
- the switch valve 11 a , 11 b are switched to the second flow-in branch pipe portion 6 ab and the second flow-out branch pipe portion 6 bb
- the water in the second storage tank 5 b is circulated as in the embodiment 1 so as to be made to hypochlorous acid water having the desired concentration in the second storage tank 5 b .
- hypochlorous acid water having a desired concentration is produced in the one of the storage tanks, the hypochlorous acid water which is already produced in the other storage tank and has the desired concentration can be used. Accordingly, hypochlorous acid water can be continuously produced and used by alternately using both the tanks.
- the producing apparatus and the producing method of hypochlorous acid water of the invention are used in food factory, chicken farm, milking farm, agricultural farm, medical and nursing care facility, restaurant, and the like.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
In a producing apparatus and a producing method of effectively and safely producing hypochlorous acid water suitable for sterilization in a desired amount of production and in a desired concentration, the producing apparatus is compact and includes an electrolytic vessel to which dilute hydrochloric acid is supplied and in which no diaphragm exists between an anode and a cathode for generating a chlorine gas, a storage tank in which water is stored, a circulation pipe into which water flows from the storage tank, in which the water circulates, and from which the water returns into the storage tank, and a mixing pipe which couples between the electrolytic vessel and the circulation pipe, mixes the chlorine gas from the electrolytic vessel with the water in the circulation pipe, and produces hypochlorous acid water.
Description
- 1. Field of the Invention
- The invention relates to a producing apparatus and a producing method of hypochlorous acid water that is effective as sterilizing water.
- 2. Description of the Related Art
- As shown in
FIG. 3 , there is known, as a conventional producing apparatus of hypochlorous acid water, a producing apparatus constructed such that a raw water feed pipe c is connected from a raw water tank a to an electrolytic vessel b in which no diaphragm exists between an anode and a cathode, and a hydrochloric acid feed pipe e from a hydrochloric acid tank d is connected in communication with the raw water feed pipe c, and hypochlorous acid water having a desired concentration is obtained in the electrolytic vessel b (refer to Jpn. Pat. Appln. KOKAI Publication No. 10-128336). - Note that, in
FIG. 3 , symbol f shows a raw water pump interposed in the raw water feed pipe c, symbol g shows a hydrochloric acid metering pump interposed in the hydrochloric acid feed pipe e, and symbol h shows a discharge pipe of an electrolytically treated liquid from the electrolytic vessel b. - The conventional hypochlorous acid water producing apparatus has the following problems.
- (1) Since the amount of hypochlorous acid water that can be produced in the electrolytic vessel b is small, the size of the electrolytic vessel b must be enlarged to produce hypochlorous acid water in a necessary amount and further a large amount of electric power is also used, in result, there is a problem of an increase of cost.
- (2) To produce hypochlorous acid water having a high concentration in the electrolytic vessel b, since a considerable amount of voltage and current are necessary in conformity with a desired concentration, there is a problem of economy and safety.
- (3) Since the amount of hypochlorous acid water that can be produced in the electrolytic vessel b is small, it is difficult to adjust the hypochlorous acid water to a predetermined concentration, and, it is also difficult to adjust hypochlorous acid water so that it has a high concentration and a system is necessary to control the concentration, from which a problem arises in that cost is increased.
- (4) There is a problem in that it is difficult to adjust the pH of hypochlorous acid water to be produced depending on the quality of raw water being used, in particular depending on the hardness of raw water.
- (5) There is a problem in that when raw water being used contains a large amount of organic matters, it is difficult to keep hypochlorous acid in hypochlorous acid water to a predetermined concentration.
- (6) There is also a problem in that since the amount of hypochlorous acid water produced in the electrolytic vessel b is small, it is difficult to produce hypochlorous acid water having a high concentration of 100 ppm or more.
- An object of the invention is to provide a producing apparatus and a producing method of hypochlorous acid water that can overcome the problems and obtain hypochlorous acid water having a desired amount of production and a desired concentration.
- To achieve the object, a first invention relates to a producing apparatus which includes an electrolytic vessel to which dilute hydrochloric acid is supplied and in which no diaphragm exists between an anode and a cathode for generating a chlorine gas, a storage tank in which water is stored, a circulation pipe into which water flows from the storage tank, in which the water circulates, and from which the water returns into the storage tank, and a mixing pipe which couples between the electrolytic vessel and the circulation pipe, mixes the chlorine gas from the electrolytic vessel with the water in the circulation pipe, and produces hyprochlorous acid water, and, a second invention relates to a producing method which includes a step of generating a chlorine gas by subjecting dilute hydrochloric acid being supplied to an electrolytic treatment in an electrolytic vessel in which no diaphragm exists between an anode and a cathode, and a step of producing hypochlorous acid water having a desired amount of production and a desired concentration by injecting the chlorine gas into the water that circulates in the circulation pipe.
- According to the invention, the electrolytic vessel can be made compact and further hypochlorous acid water having a desired concentration can be gradually produced easily by circulating the water in the storage tank until the desired concentration is reached in the same electrolytic vessel and under the same electrolytic condition. Further, hypochlorous acid water having a high concentration can be also produced. According to the method of the invention, anyone can produce hypochlorous acid water having a desired amount of production and a desired concentration simply, easily, safely, and economically.
-
FIG. 1 is a piping diagram of an embodiment of a hypochlorous acid water producing apparatus of the invention; -
FIG. 2 is a piping diagram of another embodiment of the hypochlorous acid water producing apparatus of the invention; and -
FIG. 3 is a piping diagram of a conventional hypochlorous acid water producing apparatus. - Embodiments of a mode for carrying out the invention will be shown below.
- An
embodiment 1 of a hypochlorous acid water producing apparatus of the invention will be explained referring toFIG. 1 . - In
FIG. 1 ,reference numeral 1 shows an electrolytic vessel, and theelectrolytic vessel 1 has ananode 10 a and acathode 10 b which are disposed in theelectrolytic vessel 1 and between which no diaphragm exists. -
Reference numeral 2 shows a dilute hydrochloric acid tank, awater feed pipe 3 is coupled between the dilutehydrochloric acid tank 2 and theelectrolytic vessel 1, and, a dilutehydrochloric acid pump 4 is interposed in thewater feed pipe 3 and the dilute hydrochloric acid in the dilutehydrochloric acid tank 2 is supplied to theelectrolytic vessel 1 by driving the dilutehydrochloric acid pump 4. -
Reference numeral 5 shows a storage tank, 6 shows a circulation pipe, a flow-inpipe portion 6 a and a flow-outpipe portion 6 b of thecirculation pipe 6 are connected to thestorage tank 5, and, acirculation pump 7 is interposed to an intermediate portion of thecirculation pipe 6, and the water in thestorage tank 5 flows from the flow-inpipe portion 6 a into thecirculation pipe 6, flows in thecirculation pipe 6 and flows out from the flow-out pipe portion 6 b into thestorage tank 5 so that water or hypochlorous acid water circulates in thecirculation pipe 6. -
Reference numeral 8 shows a mixing pipe, an end of themixing pipe 8 is connected to theelectrolytic vessel 1, and, the other end thereof is connected to a mixing portion A of the intermediate portion of thecirculation pipe 6, and the chlorine gas generated in theelectrolytic vessel 1 is mixed with the water which flows in thecirculation pipe 6 via themixing pipe 8, thereby hypochlorous acid water is produced. - Reference numeral 9 shows a discharge pipe of hypochlorous acid water, and 10 shows a power supply of the
anode 10 a and thecathode 10 b. - Further, the
storage tank 5 has a discharge port (not shown) for discharging the hydrogen gas generated in theelectrolytic vessel 1 to the outside. - Next, a producing method of the hypochlorous acid water produced by the apparatus of the embodiment and an effect of the producing method will be explained.
- The dilute hydrochloric acid in the dilute
hydrochloric acid tank 2 is supplied into theelectrolytic vessel 1 by driving the dilutehydrochloric acid pump 4. - Then, in the
electrolytic vessel 1, the dilute hydrochloric acid is continuously subjected to an electrolytic treatment by energizing both theanode 10 a and thecathode 10 b dipped into the dilute hydrochloric acid, thereby generating a chlorine gas. - In contrast, the water in the
storage tank 5 is circulated and flown in thecirculation pipe 6 by driving thecirculation pump 7. - Then, the chlorine gas flows in the
mixing pipe 8, is mixed with the water, which flows in thecirculation pipe 6, at the mixing portion A, and produces hypochlorous acid water which is stored in thestorage tank 5 while being produced. - At an initial time, although the hypochlorous acid water has a low concentration, the hypochlorous acid water gradually becomes hypochlorous acid water having a high concentration by being mixed with the chlorine gas while repeatedly circulating in the
circulation pipe 6. The producing apparatus is continuously operated until the hypochlorous acid water in thestorage tank 5 has a desired concentration. - As described above, since the producing apparatus employs the system for mixing the hypochlorous acid water with the chlorine gas while circulating the hypochlorous acid water, even if the
electrolytic vessel 1 is compact and theanode 10 a and thecathode 10 b are energized with a low current, hypochlorous acid water having a desired high concentration can be obtained. - Note that the hypochlorous acid water produced in the
storage tank 5 has pH of 2.0 or more to 7.0 or less and preferably has pH of 5.0 or more to 6.5 or less than. - Further, the hypochlorous acid water has a concentration of 2 ppm or more and preferably has a concentration of 10-600 ppm.
- According to the method of the embodiment, since the generated chlorine gas is circulated while being repeatedly mixed with the circulating water or hypochlorous acid water, hypochlorous acid water having a low concentration of 2 ppm to hypochlorous acid water having a high concentration of 600 ppm to about 1000 ppm can be produced.
- Further, hypochlorous acid water having an optional concentration can be produced from a small amount to a large amount by variously adjusting the capacity of the
storage tank 5, the circulation amount or the circulation time of the liquid in thecirculation pipe 6, or the amount of the chlorine gas generated in theelectrolytic vessel 1. - Further, when the water in the storage tank is soft water or contains organic matters, hypochlorous acid water in a preferable range of pH can be easily obtained by neutralizing the water by mixing an alkaline pH adjuster containing Ca, Mg, Na, K, and the like with the water in the storage tank, and, hypochlorous acid water in the preferable range of pH can be easily obtained by replenishing hypochlorous acid in the amount consumed by the organic matters.
- An
embodiment 2 of the hypochlorous acid water producing apparatus of the invention will be explained referring toFIG. 2 . - In the
embodiment 2, afirst storage tank 5 a and a second storage tank 5 b are installed, the flow-inpipe portion 6 a of thecirculation pipe 6 is branched to a first flow-inbranch pipe portion 6 aa and a second flow-inbranch pipe portion 6 ab, and, the flow-out pipe portion 6 b of thecirculation pipe 6 is branched to a first flow-outbranch pipe portion 6 ba and a second flow-outbranch pipe portion 6 bb, the first flow-inbranch pipe portion 6 aa and the first flow-outbranch pipe portion 6 ba are connected to thefirst storage tank 5 a, and, the second flow-inbranch pipe portion 6 ab and the second flow-outbranch pipe portion 6 bb are connected to the second storage tank 5 b, further,switch valves 11 a, 11 b are interposed to a branch portion of the flow-inpipe portion 6 a and a branch portion of the flow-outpipe portion 6 b, respectively, theswitch valves 11 a, 11 b are switched to the first flow-inbranch pipe portion 6 aa and the first flow-outbranch pipe portion 6 ba, and the water in thefirst storage tank 5 a is circulated as in theembodiment 1. When hypochlorous acid water having a desired concentration is produced in thefirst storage tank 5 a, theswitch valve 11 a, 11 b are switched to the second flow-inbranch pipe portion 6 ab and the second flow-outbranch pipe portion 6 bb, the water in the second storage tank 5 b is circulated as in theembodiment 1 so as to be made to hypochlorous acid water having the desired concentration in the second storage tank 5 b. Thus, while hypochlorous acid water having a desired concentration is produced in the one of the storage tanks, the hypochlorous acid water which is already produced in the other storage tank and has the desired concentration can be used. Accordingly, hypochlorous acid water can be continuously produced and used by alternately using both the tanks. - Note that, in the
embodiment 2, although the example, in which the two storage tanks are used, is shown, three or more storage tanks may be installed as necessary and the flow-in branch pipe portions and the flow-out branch pipe portions may be connected to the respective storage tanks. - The producing apparatus and the producing method of hypochlorous acid water of the invention are used in food factory, chicken farm, milking farm, agricultural farm, medical and nursing care facility, restaurant, and the like.
Claims (4)
1. A producing apparatus of hypochlorous acid water, comprising an electrolytic vessel to which dilute hydrochloric acid is supplied and in which no diaphragm exists between an anode and a cathode for generating a chlorine gas;
a storage tank in which water is stored;
a circulation pipe into which water flows from the storage tank, in which the water circulates, and from which the water returns into the storage tank; and a mixing pipe which couples between the electrolytic vessel and the circulation pipe, mixes the chlorine gas from the electrolytic vessel with the water in the circulation pipe, and produce hypochlorous acid water.
2. The producing apparatus of hypochlorous acid water according to claim 1 , wherein:
a plurality of the storage tanks are provided;
a flow-in pipe portion of the circulation pipe is branched to a plurality of flow-in branch pipe portions, and, a flow-out pipe portion of the circulation pipe is branched to a plurality of flow-out branch pipe portions; the respective flow-in branch pipe portions and the respective flow-out branch pipe portions are connected in the respective storage tanks; and switch valves are interposed to branch portions of the flow-in pipe portion and the flow-out pipe portion.
3. A producing method of hypochlorous acid water comprising:
a step of generating a chlorine gas by subjecting dilute hydrochloric acid being supplied to an electrolytic treatment in an electrolytic vessel in which no diaphragm exists between an anode and a cathode; and
a step of producing hypochlorous acid water having a desired amount of production and a desired concentration by injecting the chlorine gas into the water circulating in the circulation pipe.
4. A producing method of hypochlorous acid water comprising:
a step of generating chlorine gas by continuously subjecting dilute hydrochloric acid being supplied to an electrolytic treatment in an electrolytic vessel in which no diaphragm exists between an anode and a cathode;
a step of producing hypochlorous acid water by mixing the chlorine gas with the water in a circulation pipe into which water flows from inside of a storage tank, in which a desired amount of water is stored, in which the water circulates, and from which the water returns into the storage tank; and
a step of producing hypochlorous acid water having a desired amount of production and a desired concentration by gradually increasing the concentration of the hypochlorous acid water in the storage tank.
Applications Claiming Priority (2)
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JP2010-213180 | 2010-09-24 | ||
JP2010213180A JP5758099B2 (en) | 2010-09-24 | 2010-09-24 | Hypochlorous acid water production apparatus and production method |
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US20120073983A1 true US20120073983A1 (en) | 2012-03-29 |
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US13/159,109 Abandoned US20120073983A1 (en) | 2010-09-24 | 2011-06-13 | Producing apparatus and producing method of hypochlorous acid water |
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US (1) | US20120073983A1 (en) |
EP (1) | EP2433705A1 (en) |
JP (1) | JP5758099B2 (en) |
CN (1) | CN102418113A (en) |
TW (1) | TWI537425B (en) |
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US20120255866A1 (en) * | 2011-04-08 | 2012-10-11 | Wong Siu Ming | Method for producing electrolyzed water |
CN110314566A (en) * | 2019-05-29 | 2019-10-11 | 山东消博士消毒科技股份有限公司 | A kind of disinfection liquid preparing system |
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KR101360079B1 (en) * | 2012-03-12 | 2014-02-21 | (주)미라클린 | Non-diaphragm electrolytic cell |
JP6226845B2 (en) * | 2014-09-19 | 2017-11-08 | 株式会社東芝 | Electrolyzer |
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- 2011-06-22 TW TW100121793A patent/TWI537425B/en active
- 2011-06-23 CN CN2011101737276A patent/CN102418113A/en active Pending
- 2011-07-05 EP EP11172742A patent/EP2433705A1/en not_active Withdrawn
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US20120255866A1 (en) * | 2011-04-08 | 2012-10-11 | Wong Siu Ming | Method for producing electrolyzed water |
US9481575B2 (en) * | 2011-04-08 | 2016-11-01 | Tze Kei Choi | Method for producing electrolyzed water |
CN110314566A (en) * | 2019-05-29 | 2019-10-11 | 山东消博士消毒科技股份有限公司 | A kind of disinfection liquid preparing system |
Also Published As
Publication number | Publication date |
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TW201224219A (en) | 2012-06-16 |
JP2012067356A (en) | 2012-04-05 |
EP2433705A1 (en) | 2012-03-28 |
JP5758099B2 (en) | 2015-08-05 |
TWI537425B (en) | 2016-06-11 |
CN102418113A (en) | 2012-04-18 |
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