WO1999010286A1 - Electrolytic cell and electrolyzed water generating device - Google Patents
Electrolytic cell and electrolyzed water generating device Download PDFInfo
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- WO1999010286A1 WO1999010286A1 PCT/JP1998/002324 JP9802324W WO9910286A1 WO 1999010286 A1 WO1999010286 A1 WO 1999010286A1 JP 9802324 W JP9802324 W JP 9802324W WO 9910286 A1 WO9910286 A1 WO 9910286A1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/4618—Devices therefor; Their operating or servicing for producing "ionised" acidic or basic water
-
- 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
- C25B9/01—Electrolytic cells characterised by shape or form
- C25B9/015—Cylindrical 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
- 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
-
- 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
- C02F1/4602—Treatment of water, waste water, or sewage by electrochemical methods for prevention or elimination of deposits
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46119—Cleaning the electrodes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/4618—Devices therefor; Their operating or servicing for producing "ionised" acidic or basic water
- C02F2001/4619—Devices therefor; Their operating or servicing for producing "ionised" acidic or basic water only cathodic or alkaline water, e.g. for reducing
-
- 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
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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
- 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
- C02F2201/46115—Electrolytic cell with membranes or diaphragms
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/4612—Controlling or monitoring
- C02F2201/46125—Electrical variables
- C02F2201/4613—Inversing polarity
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/04—Oxidation reduction potential [ORP]
-
- 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
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- 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
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Definitions
- the present invention relates to an electrolytic cell and an electrolyzed water generation device for generating reducing electrolyzed water and other electrolyzed water which are preferable for use in drinking water, infusion solutions, injection solutions and the like.
- alkaline electrolyzed water obtained by electrolyzing water has a medical effect by suppressing abnormalities in the gastrointestinal tract, enzymes, indigestion, diarrhea, and excess stomach acid.
- mineral components such as calcium, sodium, magnesium, and magnesium contained in the alkaline electrolyzed water exist as cations. Therefore, the alkaline electrolyzed water for obtaining such a medical effect is exclusively controlled by the contained metal ions and the pH value, and the water to which calcium or the like is added is subjected to electrolysis until the pH reaches about 9 or more. It was generated by decomposition.
- the present invention has been made in view of such problems of the related art, and an object of the present invention is to provide an electrolytic cell and an electrolyzed water generation device capable of controlling pH and ⁇ RP independently of each other.
- an electrolyzer according to the present invention comprises: an electrolysis chamber into which raw water to be electrolyzed is introduced; and at least one pair of electrolysis chambers provided outside and inside the electrolysis chamber with a diaphragm interposed therebetween.
- An electrode plate wherein the electrode plate outside the electrolytic chamber is provided in contact with the diaphragm or via a slight gap.
- a pair of electrode plates is provided in each of the electrolytic chamber and the outside of the electrolytic chamber with a diaphragm interposed therebetween, and one of the electrode plates is provided outside the diaphragm with a contact or a slight gap. Then, electrolysis is carried out by applying a current to the electrode plate pair while supplying raw water to the electrolytic chamber.
- the electrolysis is caused by the water content of the diaphragm and the capillary phenomenon between the electrode plate and the diaphragm. Since raw water is interposed, current flows between both electrode plates.
- H + ions (actually, oxonium ions) of the above-mentioned formula (2) generated between them H ;! O— exists.
- H + ions Is strongly repelled by the anode plate, and a relatively large electric force is applied in the direction of the diaphragm.
- H + ions pass through the membrane while being impregnated in the diaphragm, and a part of the H + ions receive electrons e ⁇ from the cathode plate and become hydrogen gas as shown in the following equation (3) to become hydrogen gas and generate electrolytic water on the cathode side.
- the electrolyzed water generated on the cathode side (ie, in the electrolysis chamber) has a lower oxidation-reduction potential (ORP) than usual (ie, electrolyzed water with a negative absolute value and a large absolute value; ).
- ORP oxidation-reduction potential
- the H + ions passed through the membrane residual reacts with ⁇ _H- ions in the electrolytic chamber to return to the water (2H + + OH- ⁇ H 2 O), the electrolytic reduced water produced in the electrolysis chamber PH will be slightly neutral.
- the electrolytic cell of the present invention if at least two pairs of the diaphragm and the electrode plate are provided, at least two electrode plates are provided in the electrolysis chamber.
- the reaction of the above formula (1) also proceeds in the above. Therefore, as compared with the case where a pair of electrode plates are provided with a diaphragm interposed therebetween, the electrolytic reaction area per unit volume is increased, the electrolysis efficiency is improved, and the electrolytic cell can be made compact.
- the diaphragm and the electrode plate (anode) outside the electrolytic chamber are provided almost in contact with each other, and only water interposed between the diaphragm and the electrode plate outside the electrolytic chamber serves as a current-carrying medium.
- the oxygen gas generated by the above equation (2) is released to the atmosphere as it is. Therefore, as compared with so-called diaphragmless electrolysis, the amount of dissolved oxygen in the generated electrolytic water is significantly reduced, and the oxidation-reduction potential is further reduced.
- the electrolytic cell of the present invention when at least two pairs of the diaphragm and the electrode plate are provided, More preferably, one of at least two electrode plates provided outside the electrolytic chamber is provided in the second electrolytic chamber. Then, raw water to be electrolyzed (an electrolyte may be added as necessary) is supplied to the second electrolysis chamber, and the above-described original electrolysis chamber (hereinafter also referred to as a first electrolysis chamber for convenience). The electrolysis is performed by applying current to each of the two pairs of electrode plates while flowing the raw water to be electrolyzed
- the case where the electrode plate inside the first electrolysis chamber is minus and the electrode plate outside the first electrolysis chamber is a brush will be described as an example.
- the anode plate provided in the second electrolysis chamber and this Regarding the electrolysis performed between the cathode plate that forms a pair sufficient electrolyzed raw water is supplied to both electrolysis chambers, so the PH of the electrolytically reduced water generated near the cathode plate increases and the ORP And the mineral components are further condensed.
- the electric decomposition between the other anode plate and the cathode plate forming a pair is generated near the cathode plate because the chamber in which the anode plate is provided is open to the atmosphere.
- the pH of the electrolytically reduced water does not increase so much and the mineral components do not change, but the ORP decreases for the reasons described above.
- the ORP of the electrolyzed water can be easily lowered as the pH is higher. Therefore, when it is desired to generate electrolyzed water having a large reduction potential, it is advantageous to increase the pH.
- the pH and ORP can be controlled by appropriately controlling these electrode plate pairs as needed. Can be controlled without being affected by differences in the quality of the raw water to be electrolyzed (1 ⁇ 001 ⁇ ?).
- At least a pair of electrode plates provided with a diaphragm in each of the electrolysis chamber and the outside of the third electrolysis chamber, and an electrode plate outside the third electrolysis chamber contacts or slightly contacts the diaphragm.
- a method for back washing the electrolytic cell includes, for example, applying one of an anode voltage and a cathode voltage to one of the electrode plates provided in the electrolytic chamber, After applying the voltage of either the anode or the cathode to the other of the plates to perform the first reverse cleaning, it is preferable to perform the second reverse cleaning by inverting the polarity of the voltage applied to the electrode plate. At this time, although not particularly limited, it is preferable that no voltage is applied to the electrode plate provided outside the electrolytic chamber during the first and second backwashing.
- the general method of backwashing is to simply reverse the polarity of the applied voltage and apply the anode to the electrode plate to which the cathode has been applied before the scale has adhered, thereby eluting the attached scale electrically. . Therefore, it is possible to adopt such a back washing method also in the electrolytic cell of the present invention described above.
- the scale is attached to the electrode plate to which the cathode is applied.
- the anode is applied to this electrode plate after the transition to the positive electrolysis, the raw water to be electrolyzed is not supplied to the electrode plate, so that once attached scale is difficult to remove. For this reason, at least two electrode plates provided in the first electrolysis chamber are used, and a scale attached to these electrode plates is removed by applying a reverse cleaning current only to the electrode plates.
- the scale does not adhere to the electrode plate provided outside the first electrolysis chamber, and the backwash can be performed by applying a current only to the electrode plate provided inside the first electrolysis chamber.
- a half-sufficiency or the same current can cut backwash time in half.
- electrolytic cell of the present invention can be used alone, a plurality of electrolytic cells, a water supply system for introducing raw water into each electrolytic chamber of the electrolytic cell in parallel, And an intake system for taking out the extracted electrolyzed water in parallel.
- the electrode plate outside the electrolytic chamber is provided in contact with the diaphragm or with a small gap therebetween. This forms an electrode film on the surface of the diaphragm. It is a concept that also includes
- the diaphragm used in the electrolytic cell and the electrolyzed water generator of the present invention is not particularly limited. J 9 Not included, but examples include porous membranes, cation exchange membranes, and anion exchange membranes. In short, the membrane according to the present invention only needs to have at least porosity and water content through which water molecules can pass.
- another conductor or semiconductor may be laminated on the main surface of the electrode plate facing the diaphragm. In the present invention, these are referred to as an electrode plate.
- the use of the electrolyzed water generated by the electrolyzer and the electrolyzed water generation device of the present invention is not particularly limited, and can be applied to a wide range of fields such as a medical field, a food field, an agricultural field, and an industrial field in addition to a beverage and a medical field. Can be applied.
- the electrolyzed water obtained by the electrolyzer and the electrolyzed water generation apparatus of the present invention is characterized in that the value of the redox potential does not depend on PH. Therefore, in this specification, the electrolyzed water generated on the cathode side is used.
- the water is referred to as electrolytic reduced water instead of alkaline electrolyzed water, and the electrolytic water generated on the anode side is referred to as electrolytic oxidized water instead of electrolytic oxidized water.
- FIG. 1 is a cross-sectional view showing a first embodiment of the present invention
- FIG. 2 and 3 are cross-sectional views for explaining the back washing method of the first embodiment
- FIG. 4 is a cross-sectional view showing a second embodiment of the present invention
- FIG. 5 is a system diagram showing a third embodiment of the present invention.
- FIG. 6 is a sectional view showing a fourth embodiment of the present invention.
- FIG. 7 is a graph showing the change in the pH value with respect to the continuous operation time
- FIG. 8 is a graph showing the change in ORP with respect to the continuous operation time
- FIG. 9 is a longitudinal sectional view showing a conventional electrolytic cell used as a comparative example.
- FIG. 10 is a longitudinal sectional view showing a specific example of the fourth embodiment of the present invention.
- FIG. 11 is a longitudinal sectional view showing another specific example of the fourth embodiment of the present invention.
- FIG. 12 is a longitudinal sectional view showing a fifth embodiment of the present invention.
- FIG. 13 is a system diagram showing a sixth embodiment of the present invention.
- FIG. 14 is a cross-sectional view showing another example of the diaphragm and the electrode according to the present invention.
- FIG. 15 is a sectional view showing a modification of the second embodiment.
- FIG. 1 is a longitudinal sectional view showing a first embodiment of the present invention, and shows a basic structure of an electrolytic cell of the present invention.
- the electrolytic cell 11 of this embodiment has an inlet 1 1 1 for introducing raw water and an outlet 1 1 2 for taking out the generated electrolyzed water.
- An electrolytic chamber 1 13 is formed between the outlet 1 1 and 2.
- an inlet 111 is formed on the bottom surface of the casing 114 so as to introduce raw water in a direction perpendicular to the paper surface shown in FIG.
- An outlet 112 is formed on the top surface of the single ing 114 so that electrolyzed water is taken in a direction perpendicular to the plane of the drawing.
- porous diaphragms 115 are provided on the left and right side walls of the electrolytic cell 11, and are provided in a state where the electrode plates 116 are in contact with the outside of the diaphragm 115.
- the other electrode plate 117 is provided in the electrolysis chamber 113 such that the main surface thereof faces the one electrode plate 116, respectively.
- a DC power source 12 is connected to these two pairs of electrode plates 1 16 and 1 17, and one of the pair of electrode plates 1 16.
- the anode is adapted to apply a cathode to the other electrode plate.
- the cathode of the DC power supply is connected to the electrode plate 117 provided in the electrolytic chamber 113.
- the anode is connected to the electrode plate 116 provided outside the electrolytic chamber 113.
- the diaphragm 115 used in the present embodiment has such a property that water flowing into the electrolysis chamber 113 easily permeates, and the water that flows into the electrolysis chamber 113 does not easily drip. That is, in the electrolytic cell 11 of the present embodiment, the diaphragm 115 itself and the diaphragm 115 are A water film is formed in the small gap S between the plates 1 16, and a current flows through the electrode plates 1 16 and 1 17 via the water film. Therefore, it is important that the water constituting the water film is sequentially replaced in order to increase the electrolysis efficiency. In addition, if water that has infiltrated into the membrane 115 leaks from between the membrane 115 and the electrode plate 116, it needs to be treated. It is preferable to have
- the aggregate is polyester non-woven fabric or polyethylene screen
- the membrane material is chlorinated titanium or polyvinylidene fluoride and titanium oxide or polyvinyl chloride
- the thickness is 0.1 to 0.1. 3 mm, average pore diameter 0. 05 ⁇ 1.
- O ⁇ m water permeability is l.
- O c cZc m 2 ⁇ min can be exemplified the following porous membrane.
- the plate-to-plate distance of 117 is () mm to 5.0 mm, more preferably 1.5 mm.
- the distance between the electrode plates 1 16 and 1 17 is 0 mm, for example, as shown in FIG. 14, a zero gap where the electrode films are directly formed on both main surfaces of the diaphragm 1 15 respectively.
- the zero gap electrode may be formed on only one main surface of the diaphragm 1 15. When such a zero-gap electrode is used, holes or gaps for allowing gas generated from the electrode surface to escape to the rear side opposite to the diaphragm 115 are formed in the electrode plate 116,
- the distance between the electrode plates 117 and 117 provided in the electrolysis chamber 113 is not particularly limited, but is (5) to 5 mm, more preferably 1 mm.
- the cathode (1) of the DC power supply 12 is connected to the two electrode plates 1 17 and 1 17 provided in the 1 13 and the electrode plate 1 1 6 provided outside the electrolytic chamber 1 1 3 , 1 16 are connected to the anode (+) of the DC power supply 12, and a voltage is applied to two pairs of electrode plates 1 16, 1 17 facing each other across the diaphragm 1 15. Then, when water such as tap water is introduced from the inlet 1 1 1 1, tap water is electrolyzed in the electrolytic chamber 1 13, and the above-mentioned equation (1) is applied to the surface of the electrode plate 1 17 and its vicinity. Reaction occurs. In addition, the surface of the electrode plate 1 16 outside the electrolytic chamber 1 13 across the diaphragm 1 15, that is, the electrode plate 1 16 and the diaphragm 1 Between (1) and (15), the reaction of the above-mentioned equation (2) occurs.
- the H ions pass through the membrane 115 while being contained in the diaphragm 115, and a part of the H ions receive electrons e ⁇ from the cathode plate 117 and become hydrogen gas and dissolve into the electrolytic water generated on the cathode side. .
- the electrolyzed water generated on the cathode side (that is, in the electrolysis chamber 113) becomes electrolyzed water having a lower oxidation-reduction potential (ORP) than usual.
- the electrolytic reduced water produced in the electrolytic chamber 1 1 3 PH will be slightly neutral. In other words, electrolytically reduced water having a low ORP but a low ORP can be obtained.
- the electrolytically reduced water containing hydroxide ion thus generated is supplied from the outlet 112.
- the simplest method of backwashing is to simply reverse the polarity that was applied up to that point. That is, in the case of producing the above-mentioned alkaline electrolyzed water, the anode (+) of the DC power supply 12 is connected to the two electrode plates 1 17 and 1 17 provided in the electrolysis chamber 113. At the same time, the cathode (1) of the DC power supply 12 is connected to the electrode plates 1 16 and 1 16 provided outside the electrolysis chamber 113, and the two plates facing each other across the diaphragm 115 are connected. A voltage is applied to the pair of electrode plates 1 16 and 1 17. As a result, in the electrode plate 117 to which the cathode has been applied and scale has been applied, the metal ions of the attached brass are eluted into tap water by the application of the anode, and the outlet 1 1 2 Will be exhausted.
- the back washing in the present embodiment is performed by applying a voltage only to the two electrode plates 1 17 and 1 17 provided in the electrolytic chamber 113. It is to be removed. That is, as shown in FIG. 2, the polarity of one of the two electrode plates 1 17 and 1 17 provided in the electrolytic chamber 1 13 (here, the left electrode plate 1 17) is The polarity of the other (here, the right electrode plate 1 17) is reversed, and a positive voltage is applied. As a result, in the electrolysis chamber 113, a current flows between the two electrode plates 117, 117, and the right electrode plate to which a positive voltage is applied.
- the electrolytic cell 11 of the present invention has been described by taking as an example the case of generating electrolytic reduced water, but the electrolytic cell 11 of the present invention is also applicable to the case of generating electrolytic oxidized water. it can.
- the anode (+) of the DC power supply 12 is connected to 7 and 1 17, and the cathode (1) of the DC power supply 12 is connected to the electrode plates 1 16 and 1 16 provided outside the electrolysis chamber 113. Connect and septum 1
- a voltage may be applied to the two pairs of electrode plates 116 and 117 opposed to each other across 15.
- the OH- ions pass through the membrane 115 while being contained in the diaphragm 115, and a part of the OH- ions transfer the electrons e- to the cathode plate 117, and are dissolved in the electrolyzed water on the anode side as oxygen gas.
- the electrolyzed water generated on the anode side ie, inside the electrolysis chamber 113 becomes electrolyzed oxidized water having a higher oxidation-reduction potential (ORP) than usual.
- the remaining OH— ions that have passed through the diaphragm 1 15 react with the H + ions in the electrolysis chamber 113 and return to water, so the pH of the electrolytic oxidized water generated in the electrolysis chamber 113 becomes However, it will be slightly neutral. In other words, an electrolytically oxidized water with a high ORP but not a very low pH can be obtained.
- the electrolytically oxidized water containing hydrogen ions generated in this manner is supplied from the outlet 112.
- the electrolytic cell 11 of the present embodiment will be described more specifically.
- Electrolysis was performed at a constant current of 14 A by applying a voltage to 116 and 117.
- the membrane 115 the aggregate is a polyester nonwoven fabric
- the membrane material is polyvinylidene fluoride and titanium oxide
- the thickness is 0.12 mm
- the average pore diameter is 0.4 ⁇
- the water permeability is () .3 cc
- the distance between the electrode plates 116 and 117 was 1 mm
- the distance between the electrode plates 117 and 117 was 1 mm.
- FIG. 4 is a longitudinal sectional view showing a second embodiment of the present invention, and members common to the basic structure of the electrolytic cell 11 of the present invention shown in FIG.
- one of the electrode plates 1 16, 1 16 provided outside the electrolytic chamber 1 13, 1 16 (here, the left side) Force is provided in the second electrolytic chamber 1 18 This point is different from the first embodiment.
- the second electrolysis chamber 118 is formed on one side wall of the casing 114, and the raw water to be electrolyzed is introduced here. The introduction of the raw water to be electrolyzed into the second electrolysis chamber 118 may be carried out by passing water or simply by filling the raw water to be electrolyzed.
- the electrolytically reduced water generated by the right electrode plate pair 1 16 and 1 17 specifically reduces ORP without significantly increasing the pH as described above. Can be larger.
- the electrolytic reduced water generated by the left electrode plate pair 1 16 and 1 17 has a large pH and a large O RP on the negative side.
- the electrolytic cell 11 of the present embodiment will be described more specifically.
- the membrane 115 the aggregate is a polyester nonwoven fabric
- the membrane material is polyvinylidene fluoride and titanium oxide
- the thickness is 0.12 mm
- the average pore diameter is 0.4 ⁇
- the water permeability is 0.3 cc /. cm 2 ⁇ min using the following porous film, distance of the electrode plate 1 1 6, 1 1 7, 1 mm, the distance of the electrode plate 1 1 7, 1 1 7 was 1 mm.
- the electrolytic cell 11 shown in FIG. 15 is composed of a general water-flow type electrolytic cell 11 A (first electrolytic cell) and the electrolytic cell 11 B (second electrolytic cell) of the first embodiment. They are connected in series.
- an inlet 1 1 1 A through which raw water to be electrolyzed such as tap water is introduced, and the casing 1 1 4 A Inside, a pair of electrode plates 1 1 6 A and 1 1 7 A are provided with a diaphragm 1 1 5 A interposed therebetween.
- two pairs of diaphragms 115A and electrode plate pairs 116A, 117A are provided on both sides of the casing 114A.
- an electrolytic chamber 113A is formed between the two diaphragms 115A, 115A, and a second electrolytic chamber 111 outside the diaphragms 115A, 115A. 8 A, 1 18 A are formed.
- the casing 114A located downstream of the second electrolysis chamber is provided with the second electrolyzer. There is a discharge port 118 Aa for discharging the electrolyzed water generated in the dissolution chamber 118 A out of the system.
- the electrolytic cell 11B of the above-described first embodiment (see FIG. 1) is connected to the downstream side of the first electrolytic cell 11A, and the same members are denoted by the same reference numerals.
- the first electrolytic cell 11 A and the second electrolytic cell 11 B are connected in series, and when electrolytic reduced water having a small ORP is generated in the electrolytic cell 11, first, In the first electrolytic cell 11 A, a large pH (alkaline) electrolyzed water is generated, and when this is introduced into the second electrolytic cell 11 B as raw water to be electrolyzed, the second electrolytic cell 11 B In B, ORP can be mainly increased to the minus side. That is, the pH can be adjusted in the first electrolytic cell 11A and the ORP can be adjusted in the second electrolytic cell 11B. Further, the degree of freedom of the combination of pH and ORP can be improved. High electrolyzed water is obtained.
- FIG. 5 is a system diagram showing an embodiment of the electrolyzed water generator 1 configured using the above-described electrolytic cell 11 of the present invention, and the electrolytic cells 11 of the first or second embodiment described above are arranged in parallel.
- a water supply system 13 for supplying raw water to be electrolyzed is provided at each of the inlets 11 of the electrolytic cells 11.
- This water supply system 13 is composed of a main water supply pipe 13 1 and a plurality of branch water supply pipes 13 2 branched from the main water supply pipe 13.
- the main water supply pipe 13 1 filters foreign substances in raw water to be electrolyzed.
- a drain valve is provided with a strainer 13 at the end, and a manual valve 13 4 at the tip.
- Each branch water supply pipe 13 2 is provided with a pressure reducing valve 13 5 and a solenoid valve 13 6, which is further branched to be provided with a constant flow valve 13 7 and a manual valve 13 8.
- a water intake system 14 is provided at the outlets 112 of the electrolytic cells 11 provided in parallel.
- This water intake system 14 is composed of a main water intake pipe 14 1 that consolidates the respective outlets 1 1 2 of the electrolytic cell 11, an electric valve 14 2 provided at the tip thereof, and a main water intake pipe 1 4 It is composed of a drain pipe 144 branched from 1 and an electric valve 144 provided in the drain pipe 144.
- a DC power supply 12 shown in FIG. 1 or FIG. 4 is connected to each electrolytic cell 11.
- the manual valve 134 at the tip of the main water supply pipe 131 is closed, and the manual valves 138 of each branch water supply pipe 132 are opened. Then, raw water is supplied to the main water supply pipe 131, and the solenoid valve 136 of each branch water supply pipe 132 and the electric valve 142 of the water intake system 14 are controlled.
- FIG. 6 is a cross-sectional view showing a fourth embodiment of the electrolytic cell of the present invention, and members common to the basic configuration of the electrolytic cell 11 shown in FIG. 1 are denoted by the same reference numerals.
- This example is different from the first embodiment in that only a pair of the diaphragm 1 15 and the electrode plates 1 16 and 1 17 are provided.
- Example 1 an electrolytic cell having the basic structure shown in Fig. 6 was used, and pH was 7.2, ⁇ RP was +45 OmV, 4 liters of Zin flowed in, and a voltage of 3 OV was applied to apply electricity. Decomposition was performed. The current flowing through both electrode plates 1 16 and 1 17 was 4 A (12 OW). Also, as the diaphragm 115, the aggregate is polyester nonwoven fabric, the membrane material is polyvinylidene fluoride and titanium oxide, the thickness is 0.12 mm, the average pore diameter is 0.4 m, and the water permeability is 0.3 c cZc m A porous membrane of 2 min or less was used, and the distance between the electrode plates 116 and 117 was 1 mm.
- an electrolytic chamber 1 13 ′ is also provided on the electrode plate 1 16 side, and the distance between the electrode plate 1 16 and the diaphragm 1 15 is large (0.5 mm).
- An electrolytic cell was prepared, and in the same manner as in Example 1, tap water having a pH of 7.2 and an ORP of +45 OmV was flowed at 4 liter / min, and a voltage of 12 V was applied to perform electrolysis.
- the current flowing through both electrode plates 1 16 and 1 17 was 10 A (120 W).
- the same diaphragm as in Example 1 was used for the diaphragm 1 15, the distance between the electrode plates 1 16 and 1 17 was 1 mm, and the diaphragm 1 15 was set so as to be located at the center.
- Example 2 the same electrolytic cell as in Example 1 was used, the polarity of the voltage applied to the electrode plates 1 16 and 1 17 was reversed, and the pH of the raw water to be electrolyzed was 7.4 and the QRP was +350 m.
- the electrolysis was performed under the same conditions as in Example 1 except that tap water with V and DO (dissolved oxygen content) of 6.4 ppm was used. This was continued for 1 hour, but the pH was 6.9, 0? As a result, a stable electrolytic oxidized water with +560 yen and DO of 10.0 ppm was obtained.
- V and DO dissolved oxygen content
- FIG. 10 is a longitudinal sectional view showing one example
- FIG. 11 is a longitudinal sectional view showing another example.
- Members common to the basic configuration of the electrolytic cell of the present invention are denoted by the same reference numerals.
- the electrolytic cell 11 shown in FIG. 10 has a casing 114 whose vertical section is formed in a rectangular parallelepiped shape, and has an inlet 1 1 1 ( Concretely, a pipe for introducing raw water) is provided, and at the upper end, an outlet 1 1 2 (specifically, a pipe for extracting electrolytic water) extending perpendicularly to the plane of the paper is provided. And You.
- a pair of electrode plates 1 16 and 1 17 are fixed in the electrolytic cell 11, and a diaphragm 1 15 is integrally attached to one of the electrode plates 1 16, for example.
- the space between the electrode plate 1 17 and the diaphragm 1 15 is an electrolysis chamber 1 13, but a gap S is formed between the integrally formed diaphragm 1 15 and the electrode plate 1 16, There will be water here too.
- a gas chamber 1 19 is formed outside the electrolytic chamber 1 13, and the gas generated in the surface on the electrode plate 1 16 side, that is, the gas generated in the gap S is It is now possible to efficiently concentrate on 1 1 9 “1 19 a” is an outlet for discharging the gas released into the gas chamber 1 19 to a desired portion.
- a chamber 1 19 ′ force S is also formed on the back of the electrode plate 1 17 that is not in contact with the diaphragm 1 15, but this is not essential and can be omitted.
- it can be preferably used to increase the compatibility between the anode and the cathode.
- the unit of the electrode plate 1 16 and the diaphragm 1 15 shown in FIG. 7 can be replaced with the electrode plate 1 17.
- the discharge port 1 19a 'opened in the upper part of the chamber 1 19' is unnecessary, it may be closed with a plug 15 3 or the like.
- the electrolytic cell 11 shown in FIG. 11 employs a cylindrical casing 114.
- a cylindrical electrode plate 116 having upper and lower ends opened, and a cylindrical diaphragm 115 contacting the same and having upper and lower ends opened,
- a solid electrode rod 117 is provided at the center of the electrolysis chamber 113.
- the lower end of the electrolytic cell 11 is provided with an inlet 11 1 for raw water to be electrolyzed, and the upper end is provided with an outlet 1 12 for electrolyzed water. Is electrolyzed by passing through a cylindrical electrolytic chamber 113 formed between the electrode rod 117 and the cylindrical diaphragm 115, and then taken out from the outlet 112.
- the same gas chamber 1 19 as in the example shown in FIG. 10 described above is formed around the entire circumference, and a cylindrical diaphragm 1 15 and a cylindrical electrode plate 1 16 are formed.
- the gas generated in the cylindrical gap S formed at (where a water film is formed) is collected and discharged from the outlet 11a.
- FIG. 12 is a conceptual diagram showing a basic configuration when the electrolytic cell of the present invention is applied to a batch type electrolytic cell. Members common to the basic configuration shown in FIG. 1 are denoted by the same reference numerals. Even with this type of batch type electrolytic cell, it is possible to produce electrolytically reduced water or electrolytic oxidized water with a large absolute value of the oxidation-reduction potential for a long time without depending on the target characteristics, especially the pH value. Wear.
- the electrolyzed water generator equipped with the electrolyzer according to the present invention can be applied not only to supply electrolyzed water in real time, but also to a case where a large amount of electrolyzed water is generated by circulating raw water to be electrolyzed into a storage tank. it can.
- FIG. 13 is a diagram showing a sixth embodiment of the electrolyzed water generation device of the present invention, in which the present invention is applied to a beverage.
- electrolytic reduced water can be used instead of drinking water used for home or business use.
- tap water is stored in a water storage tank 50 as shown in FIG.
- the electrolyzed water is generated by electrolysis as described above, and is returned to the water storage tank 50. If this circulation is continued for a certain period of time, electrolytically reduced water having a pH close to neutral and a low ORP is obtained.
- PH is 7.2
- ORP is +450 mV
- DO is 7. 20 liters of tap water of 0 is charged into the water storage tank 50, and the pump is operated for 25 minutes using the electrolyzed water generator having the electrolysis tank described in the fourth embodiment, and the water in the water storage tank 5 () is discharged. Electrolysis was performed while circulating through the electrolyzed water generator 1.
- the production volume of the electrolyzed water generator 1 was 4 liters Z, and the current flowing between the electrode plates was 1 OA (constant).
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002270199A CA2270199C (en) | 1997-08-27 | 1998-05-27 | Electrolytic cell and electrolyzed water generating device |
| JP51415099A JP3349710B2 (ja) | 1997-08-27 | 1998-05-27 | 電解槽および電解水生成装置 |
| US09/284,483 US6251259B1 (en) | 1997-08-27 | 1998-05-27 | Method and apparatus for producing electrolyzed water |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24606097 | 1997-08-27 | ||
| JP9/246060 | 1997-08-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1999010286A1 true WO1999010286A1 (en) | 1999-03-04 |
Family
ID=17142880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1998/002324 Ceased WO1999010286A1 (en) | 1997-08-27 | 1998-05-27 | Electrolytic cell and electrolyzed water generating device |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6251259B1 (ja) |
| JP (1) | JP3349710B2 (ja) |
| CA (1) | CA2270199C (ja) |
| WO (1) | WO1999010286A1 (ja) |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005507314A (ja) * | 2001-11-02 | 2005-03-17 | カン,ソンシク | 電気分解整水器 |
| JP2010051963A (ja) * | 2002-04-26 | 2010-03-11 | Mizu Kk | 高濃度水素溶存水を含有する飲料 |
| WO2005039602A1 (ja) * | 2003-10-24 | 2005-05-06 | Miz Co., Ltd. | 薬理機能水、およびその用途 |
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| WO2010103894A1 (ja) | 2009-03-13 | 2010-09-16 | ミズ株式会社 | 水素含有生体適用液の製造方法及び製造装置 |
| JP2010241787A (ja) * | 2009-03-13 | 2010-10-28 | Mizu Kk | 水素含有生体適用液の製造方法及び製造装置 |
| JP2011177242A (ja) * | 2010-02-26 | 2011-09-15 | Mizu Kk | 水素含有生体適用液の製造方法及び製造装置 |
| CN104114495A (zh) * | 2012-07-06 | 2014-10-22 | 日本多宁股份有限公司 | 用来生产用于制备透析液的水的设备 |
| WO2014006740A1 (ja) * | 2012-07-06 | 2014-01-09 | 株式会社日本トリム | 透析液調製用水の製造装置 |
| JPWO2014006740A1 (ja) * | 2012-07-06 | 2016-06-02 | 株式会社日本トリム | 透析液調製用水の製造装置 |
| JP2015136663A (ja) * | 2014-01-22 | 2015-07-30 | 株式会社日本トリム | 電解水生成装置 |
| WO2017064967A1 (ja) * | 2015-10-14 | 2017-04-20 | 日立マクセル株式会社 | 水素水生成装置 |
| JP2017205749A (ja) * | 2015-10-14 | 2017-11-24 | マクセルホールディングス株式会社 | 水素水生成装置 |
| JP2018020279A (ja) * | 2016-08-02 | 2018-02-08 | MiZ株式会社 | 水素水の生成方法 |
| CN107673447A (zh) * | 2016-08-02 | 2018-02-09 | 水株式会社 | 氢水的生成方法 |
| KR20180015081A (ko) * | 2016-08-02 | 2018-02-12 | 미즈 가부시키가이샤 | 수소수의 생성 방법 |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2270199C (en) | 2005-08-09 |
| JP3349710B2 (ja) | 2002-11-25 |
| CA2270199A1 (en) | 1999-03-04 |
| US6251259B1 (en) | 2001-06-26 |
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