CN106460206A - Electrolytic device and electrolyzed water generation method - Google Patents
Electrolytic device and electrolyzed water generation method Download PDFInfo
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- CN106460206A CN106460206A CN201580033138.4A CN201580033138A CN106460206A CN 106460206 A CN106460206 A CN 106460206A CN 201580033138 A CN201580033138 A CN 201580033138A CN 106460206 A CN106460206 A CN 106460206A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
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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
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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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/4618—Devices therefor; Their operating or servicing for producing "ionised" acidic or basic water
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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
- C25B1/34—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis
- C25B1/46—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in diaphragm cells
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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
- C25B13/00—Diaphragms; Spacing elements
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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
- C25B13/00—Diaphragms; Spacing elements
- C25B13/02—Diaphragms; Spacing elements characterised by shape or form
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/02—Process control or regulation
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- C—CHEMISTRY; METALLURGY
- 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
-
- 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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/03—Pressure
Abstract
An electrolytic device according to an embodiment comprises: an electrolytic cell (10) including a first diaphragm (17a) separating an intermediate compartment (18a) through which an electrolytic solution flows and an anode compartment (18b), a second diaphragm (17b) separating the intermediate compartment (18a) and a cathode compartment (18c), an anode (15a) arranged in the anode compartment (18b) to face the first diaphragm (17a), and a cathode (15b) arranged in the cathode compartment (18c) to face the second diaphragm (17b); a water supply unit (80) for supplying water to the anode compartment (18b) and the cathode compartment (18c), and intermittently varying the amount of water supply to and water discharge from the anode compartment (18b) and/or the cathode compartment (18c); an electrolytic solution supply unit (20) for supplying and discharging the electrolytic solution to and from the intermediate compartment (18a); and a control unit (500) for electrolyzing the electrolytic solution by applying a voltage to the anode (15a) and the cathode (15b) while the amount of water supply to and water discharge from the anode compartment (18b) and/or the cathode compartment (18c) is reduced or water is static in the anode compartment (18b) and/or the cathode compartment (18c).
Description
Technical field
Here the embodiment describing relates to electrolysis unit and electrolyzed water producing method.
(quoting of association request)
The application by filed in 22 days September in 2014 based on first Japanese patent application the 2014-192939th, it is desirable to
The interests of its priority, meanwhile, during the full content of this Japanese patent application is incorporated herein by reference.
Background technology
In the past, as the device generating basic ion water, Ozone Water or hypochloric acid water etc., use the electricity with 3 Room types always
Solve the electrolytic water generating device of groove.In the electrolytic cell of 3 Room types, the barrier film being made up of cation-exchange membrane and anion-exchange membrane
This Room 3 of anode chamber, medial compartment and cathode chamber will be divided in casing.It is each configured with anode and the moon in anode chamber and cathode chamber
Pole.
In above-mentioned electrolytic water generating device, for example, make salt solution flow to medial compartment, and make water flow to the cathode chamber of left and right
And anode chamber, so that the salt solution of medial compartment is at negative electrode and anode electrolysis, so in anode chamber, the chlorine producing is generated time chlorine
Sour water, generates NaOH water at cathode chamber simultaneously.The hypochloric acid water generating is utilized as sterilizing water, NaOH
Water is utilized as washings.Document about above-mentioned technology is as follows, and full content is incorporated herein by quoting.
Prior art literature
Patent document
Patent document 1：No. 3500173 publications of Japanese Patent No.
Content of the invention
Problems to be solved by the invention
But, divide the chlorine that the anion-exchange membrane of medial compartment and anode chamber produces for anode and soda acid shortage be durable
Property.In addition, for the electrolytic cell of 3 above-mentioned Room types, due to the anode chamber that produces during to electrolytic cell for feedwater and electrolyte solution and/
Or the differential water pressures etc. of cathode chamber and medial compartment, gap can be produced between electrode and amberplex, electrolyte properties is possible to variation.
Present embodiment problem to be solved be to provide the raising that can realize durability or electrolytic efficiency electrolysis unit or
Electrolyzed water producing method.
The means of solution problem
According to embodiment, electrolysis unit possesses：Electrolytic cell, described electrolytic cell has：It is divided into and flow through electrolyte solution
1st barrier film of medial compartment and anode chamber, the 2nd barrier film being divided into described medial compartment and cathode chamber and described 1st barrier film are relatively
It is arranged at the anode of described anode chamber and be oppositely disposed in the negative electrode of described cathode chamber with described 2nd barrier film；Water supply unit,
Described water supply unit to described anode chamber and described cathode chamber for feedwater while, change off and on to described anode chamber and described
The supply discharge rate of the water of at least one of cathode chamber；Electrolyte solution supply unit, described medial compartment is supplied and discharges electrolysis by it
Matter liquid；And control unit, the supply discharge rate of its described water of at least one at described anode chamber and described cathode chamber diminish or
In the state of hydrostatic, by described anode and described negative electrode are applied voltage and are electrolysed described electrolyte solution.
Brief description
Fig. 1 is the schematic configuration diagram of the electrolysis unit of the 1st embodiment.
Fig. 2 is the schematic configuration diagram of the electrolysis unit of the 2nd embodiment.
Fig. 3 is the schematic configuration diagram of the electrolysis unit of the 3rd embodiment.
Fig. 4 is the schematic configuration diagram of the electrolysis unit of the 4th embodiment.
Detailed description of the invention
Hereinafter, referring to the drawings various embodiments are illustrated.Additionally, it is identical to the common composition mark of embodiment
Symbol, and the repetitive description thereof will be omitted.In addition, each figure be in order to promote embodiment and its understand schematic diagram, its shape and
Size, ratio etc. have the place different from actual device, but these are referred to the following description and known technology is fitted
Local design alteration.Additionally, in the application, " hydrostatic " not necessarily requires it is the totally stationary state of fluid.Hydrostatic is also permissible
Referring to the stable movement of fluid, the ionic species having reached to be not intended to pass through only little by little passed through without ion within the time of regulation
The degree of selective multiple aperture plasma membrane, or, it is also possible to refer to that the pressure of fluid is fully little.
(the 1st embodiment)
Fig. 1 is roughly to represent the figure that the electrolysis unit 1 of the 1st embodiment is integrally formed.As it is shown in figure 1, electrolysis dress
Put 1 electrolytic cell 10 with 3 Room types.This electrolytic cell 10 for example has the casing of substantially rectangular box like.By the 1st barrier film in casing
17a and the 2nd barrier film 17b separates into medial compartment 18a and is positioned at the anode chamber 18b and cathode chamber 18c of both sides of medial compartment 18a.This
In embodiment, the 1st barrier film 17a and the 2nd barrier film 17b is respectively constituted by the multiple aperture plasma membrane of same size.In anode chamber 18b,
It is provided with anode 15a close to the 1st barrier film 17a, in cathode chamber 18c, be provided with negative electrode 15b close to the 2nd barrier film 17b.
Medial compartment 18a has the 1st inflow entrance 14a and the electrolyte solution by flowing in medial compartment 18a flowing into electrolyte solution
The 1st flow export 14b discharging.Anode chamber 18b has the 2nd inflow entrance 12a of inflow electrolysis water and by flowing in anode chamber 18b
The 2nd flow export 12b that electrolysis water is discharged.Cathode chamber 18c has the 3rd inflow entrance 16a of inflow electrolysis water and by cathode chamber 18c
The 3rd flow export 16b that the electrolysis water of flowing is discharged.In the 1st embodiment, the capacity of anode chamber 18b and cathode chamber 18c is double
Fang Junwei 500cc.Usually, the capacity of anode chamber 18b and cathode chamber 18c is if more than 200cc, then be illustrated below
The cycle of intermitten will not shorten, and control is easily.
The multiple aperture plasma membrane constituting the 1st barrier film 17a and the 2nd barrier film 17b can select there is no ion-selective permeability,
But indefatigable the material such as oxide ceramics, PVDF (polyvinylidenedifluoride, Kynoar) to chlorine
Resin, PTFE (polytetrafluoroethylene, polytetrafluoroethylene (PTFE)) resin.But, using multiple aperture plasma membrane as electrolytic cell
When barrier film uses, it has to be possible to pass through electrolyte.Multiple aperture plasma membrane is not owing to having ion selectively as a result, there is the porous of water penetration
The selection of plasma membrane is obligato.Multiple aperture plasma membrane can use water penetration for example, 10ml/ to divide/cm2The multiple aperture plasma membrane of/MPa.
On the other hand, when use do not have ion selectively but have the multiple aperture plasma membrane of water penetration when, due to the both sides of barrier film
Differential water pressures, unnecessary material, for example for anode chamber 18b, unwanted cation also can pass through.Therefore, to medial compartment 18a
Supply saline solution when, due to differential water pressures, it is not necessary to salinity be possible to be mixed in anode chamber 18b or cathode chamber 18c.
If using the above-mentioned multiple aperture plasma membrane with water penetration, then by by medial compartment 18a relative to anode chamber 18b and
The relative water pressure of cathode chamber 18c is set as below 2kPa, the alkaline water generating in anode chamber 18b and cathode chamber 18c and acidity
Being mixed into of salinity in water just becomes below 300ppm, disclosure satisfy that running water benchmark.And then, if using water penetration to be 0.1
～10ml/ divides/cm2In the range of/MPa, multiple aperture plasma membrane in the range of be 2～100nm for the aperture, even if then above-mentioned relative water pressure
In the range of 1～10kPa, it is also possible to prevent salinity to be mixed into.As the multiple aperture plasma membrane with above-mentioned water penetration and aperture, excellent
Choosing uses such as milipore filter.
The electrolysis unit 1 of present embodiment is as described below, can be in the saline solution in making medial compartment 18a and anode chamber
Water in 18b and cathode chamber 18c is electrolysed in the state of being hydrostatic.In other words, can be 0kPa's at above-mentioned relative water pressure
It is electrolysed under state or fully little pressure, now, even if using water penetration to be that 0.1～100ml/ divides/cm2The model of/MPa
Enclose multiple aperture plasma membrane in the range of interior, aperture is 2～1000nm, it is also possible to prevent salinity to be mixed into.In addition, water penetration exceedes
100mL/ divides/cm2Even if the multiple aperture plasma membrane of/MPa eliminates differential water pressures, unwanted salinity also can be mixed into because of diffusion.Water penetration
Divide/cm for 0.1mL/2The multiple aperture plasma membrane of/below MPa can not allow electrolysis required for electrolyte fully through, it is impossible to carry out institute's phase
The electrolysis hoped.
Electrolysis unit 1, in addition to having electrolytic cell 10, also has：To the medial compartment 18a supply electrolyte of electrolytic cell 10
The 20th, liquid, the electrolyte solution supply unit of such as saturated aqueous common salt supply electrolysis water, such as water to anode chamber 18b and cathode chamber 18c
Water supply unit 80 and the power supply 40 applying positive voltage and negative voltage to anode 15a and negative electrode 15b respectively.
Electrolyte solution supply unit 20 has：Generate and house the brine tank (electrolyte flow container) of saturated aqueous common salt the 70th, from salt
Water pot 70 is imported supplying tubing 20a of saturated aqueous common salt by the 1st inflow entrance 14a to medial compartment 18a, is arranged at supplying tubing
Liquid-feeding pump 50 in 20a and make to flow through the row that the saline solution of medial compartment 18a re-circulates to brine tank 70 from the 1st flow export 14b
Go out pipe arrangement 20b.As it is shown in figure 1, the electrolysis unit 1 of the 1st embodiment is the saline solution as electrolyte solution passes through liquid-feeding pump 50
The scheme of circulation between medial compartment 18a and brine tank 70.
It is arranged at the magnetic valve described later 100 on feedwater pipe arrangement 80a and liquid-feeding pump 50 is connected with control unit 500, by this control
Portion 50 processed carrys out control action.Liquid-feeding pump 50 links with magnetic valve 100, carries out one action and stopping every 5 seconds respectively.That is, send
Liquid pump 50 was 1 cycle work and stopping to be repeated with 10 seconds.The hydraulic pressure of medial compartment 18a when liquid-feeding pump 50 works is 5
About～15kPa, the hydraulic pressure of medial compartment 18a when liquid-feeding pump 50 stops is 0kPa or infinitesimal hydraulic pressure.Additionally, medial compartment
Saline solution in 18a, while liquid-feeding pump 50 stops, rapidly becoming hydrostatic state.
The opening/closing time of the water pushing pressure of liquid-feeding pump 50 and magnetic valve 100 also can come certainly according to the capacity of electrolytic cell 10
Fixed.But, when electrolyte solution uses saturated aqueous common salt, the electrolyte owing to consuming is extremely trace compared with streamflow,
So the work of liquid-feeding pump 50 is not necessarily consistent with the opening time of magnetic valve 100.For example, it is also possible to by liquid-feeding pump 50
Working time is set as 2 seconds, and dwell time is set as 8 seconds, it is also possible to be separated by 2～10 cycles, to be i.e. separated by 20～100 seconds
Magnetic valve 100 makes the mode that liquid-feeding pump 50 works when opening 1 time, reducing operating frequency makes liquid-feeding pump 50 work.
Present embodiment is the work by liquid-feeding pump 50 and by way of stopping switching and sending water and hydrostatic, but embodiment
Essence be to control hydraulic pressure by changing streamflow off and on.Therefore, electrolysis unit 1 not necessarily only liquid-feeding pump 50 to be passed through
Work and stopping control.For example, it is also possible to use converter circuit to change the pushing quantity of liquid-feeding pump 50, arrange off and on
Increase the time of pushing quantity and the time of minimizing pushing quantity.That is, as long as the electrolysis unit 1 of embodiment can switch suitably off and on
Hydraulic pressure control.
Water supply unit 80 has：For the not shown water-supply source of feedwater, from water-supply source to anode chamber 18b and cathode chamber 18c
Bottom import the feedwater pipe arrangement 80a of water, be arranged at the magnetic valve feeding water in pipe arrangement 80a and the 100th, the water of anode chamber 18b will be flow through
The 1st drainage piping 80b that discharges from the 2nd flow export 12b of anode chamber 18b, the water of cathode chamber 18c will be flow through from cathode chamber 18c
The 3rd flow export 16b discharge the 2nd drainage piping 80c and be arranged in the 1st drainage piping 80b and the 2nd drainage piping 80c
Check-valves 400b and 400c.
Feedwater pipe arrangement 80a before magnetic valve 100, be branched off into 2, one end of the pipe arrangement of branch be arranged at anode chamber
The 2nd inflow entrance 12a on 18b connects, and the other end is connected with the 3rd inflow entrance 16a being arranged on cathode chamber 18c.
The existence of check-valves 400b, 400c owing to being arranged on the 1st drainage piping 80b and the 2nd drainage piping 80c, raw
The acid water and the alkaline water that become are discharged when the hydraulic pressure of anode chamber 18b and cathode chamber 18c is higher than setting, but will not be downstream
Side adverse current arrives anode chamber 18b and cathode chamber 18c side.The piping system that the gas that therefore, it can occur during control electrolysis is caused
The acid water that internal pressure rises and control generates and the adverse current of alkaline water.In addition, check-valves 400b and 400c is also prevented from
From being mixed into of outside worm and air.
When the hydraulic pressure adjuster etc. of supply source is adjusted to standard hydraulic pressure 0.2MPa, feedwater pipe arrangement 80a, the 1st draining are joined
The normal flow of pipe 80b and the 2nd drainage piping 80c is set to the 1L/5 second.Now, the hydraulic pressure with anode chamber 18b and cathode chamber 18c
The mode becoming 20～30kPa constitutes stream and pipe arrangement.
In addition, magnetic valve 100 links with liquid-feeding pump 50, repeat within 5 seconds, to open the action closed for 5 seconds.As a result, at electromagnetism
Period opened by valve 100, and the water in anode chamber 18b and cathode chamber 18c was extruded 1L, the anode chamber 18b of each 500cc capacity with 5 seconds
Change completely with the water in cathode chamber 18c.
Therefore, the hydraulic pressure of anode chamber 18b and cathode chamber 18c is 0kPa or infinitesimal water when magnetic valve 100 cuts out
Pressure, magnetic valve 100 is 20～30kPa when opening.On the other hand, the hydraulic pressure of medial compartment 18a is 0kPa when liquid-feeding pump 50 stops
Or infinitesimal hydraulic pressure, it when liquid-feeding pump 50 works, is 5～15kPa.Therefore, magnetic valve 100 when liquid-feeding pump 50 works
Must open, the hydraulic pressure that the hydraulic pressure of anode chamber 18b and cathode chamber 18c becomes than medial compartment 18a is high, and salinity will not be from centre
Room 18a is mixed into by multiple aperture plasma membrane in anode chamber 18b and/or cathode chamber 18c.
Additionally, in above explanation, by the opening and closing of magnetic valve 100, supply to anode chamber 18b and cathode chamber 18c and discharge
Water repeat off and on to send water and hydrostatic.But, it is more important that the electrolysis unit of present embodiment controls flowing water pressure off and on
's.The control of flowing water pressure also can come real by reducing the confession confluent to anode chamber 18b, cathode chamber 19c and medial compartment 18a
Existing.For example, it is also possible to arrange conveying pump on feedwater pipe arrangement 80a, controlled the pushing quantity of conveying pump by convertor controls, electricity
Reduce pushing quantity during solution and make hydraulic pressure be below setting.In other words, it is also possible at the water to anode chamber 18b and cathode chamber 18c
Supply discharge rate in the state of diminish, voltage is applied to anode 15a and negative electrode 15c and is electrolysed electrolyte solution.
Hereinafter, the electrolysis unit 1 using above-mentioned composition is come practically electrolytic saltwater and generate acid water (hypochlorous acid and
Hydrochloric acid) and the action of alkaline water (NaOH) illustrate.Additionally, in the 1st embodiment, liquid-feeding pump the 50th, power supply 40 and
Magnetic valve 100 is controlled by control unit 500, and the feedwater discharge of liquid, the opening and closing of valve, the applying of voltage are set as suitably synchronizing.
First, with adjuster etc., the hydraulic pressure of water-supply source is set as standard hydraulic pressure 0.2MPa, when opening magnetic valve 100, example
As reached to carry out in advance in the way of 24L/ divides pressure adjustment by pushing quantity.Then, work/stopping and the magnetic valve of liquid-feeding pump 50 are made
The opening/closing synchronization of 100 is carried out, while the medial compartment 18a supply saturated aqueous common salt of electrolytic cell 10, to anode chamber 18b and the moon
Room, pole 18c is for feedwater.The opening time of the working time of liquid-feeding pump 50 and magnetic valve 100 is respectively set as 5 seconds.Then, simultaneously
Carry out the closedown 5 seconds of the stopping of liquid-feeding pump 50 and magnetic valve 100.That is, the work stopping of liquid-feeding pump 50 and opening of magnetic valve 100 are made
Close synchronization respectively to carry out, be simultaneously to repeat in 1 cycle to implement with 10 seconds.The work of liquid-feeding pump 50 stops the opening and closing with magnetic valve
Cycle can come according to the balance of the hydraulic pressure etc. of capacity and/or water-supply source with anode chamber 18b, cathode chamber 18c and medial compartment 18a
Adjust in good time.
Usually, the capacity of anode chamber 18b and cathode chamber 18c is if more than 200cc, then the cycle of above-mentioned intermitten
Elongated, control is easily.If in addition, the cycle of intermitten is elongated, then device burden mitigates, the life of liquid-feeding pump.This
Outward, 2 times of capacity sum of the capacity that magnetic valve 100 send the water yield of water to be set as anode chamber 18a and cathode chamber 18a are opened i.e.
About 2000cc.In other words, the water of amount of about 2 times of capacity of each room is excessively sent into be replaced with new water.
Stop at liquid-feeding pump 50, magnetic valve 100 down periods, in medial compartment 18a and anode chamber 18b and cathode chamber 18c
Saline solution and water become hydrostatic, and the hydraulic pressure of each room reaches 0kPa or fully little hydraulic pressure.During this, to anode 15a and negative electrode 15b
Apply voltage, be electrolysed.The stopping of the 1st liquid-feeding pump 50 and closedown magnetic valve 100 and electricity is applied to anode 15a and negative electrode 15b
Pressure all is synchronized to carry out by control unit 500.According to above-mentioned setting, averagely, anode chamber 18b and cathode chamber 18c gives birth to respectively
Become the acid water that divides of 6L/ and alkaline water.
As described above, the hydraulic pressure that send of liquid-feeding pump 50 is about 5～15kPa, the hydraulic pressure that send of water-supply source is about 20～30kPa.Cause
This, have multiple aperture plasma membrane 17a, 17b of water penetration even if using, when saline solution and water are supplied to electrolytic cell 10, anode chamber 18b and
The hydraulic pressure that the hydraulic pressure of cathode chamber 18c also becomes than medial compartment 18a is high, and salinity will not be mixed into anode chamber 18b from medial compartment 18a
And/or in cathode chamber 18c.During in addition, saline solution and water are hydrostatic state, also due to each room does not has differential water pressures, so salinity is not
Can be mixed in anode chamber 18b and/or cathode chamber 18c from medial compartment 18a.
It during applying voltage to anode 15a and negative electrode 15b, being electrolysed, is flowed into the saline solution in medial compartment 18a
In, the sodium ion of ionization is attracted by negative electrode 15b, is flowed into cathode chamber 18c by the 2nd barrier film 17b.Then, at cathode chamber 18c
In, water decomposition and produce hydrogen, generate sodium hydrate aqueous solution.Meanwhile, chlorion or water also can be by having the 2nd of water penetration the
Barrier film 17b, but owing to the hydraulic pressure of each room during electrolysis is 0, so the throughput of chlorion to suppress below for running water benchmark
Trace.The sodium hydrate aqueous solution and the hydrogen that generate as described above are discharged from the 3rd flow export 16b of cathode chamber 18c by the 2nd
Pipe arrangement 80c and discharge.
In addition, the chlorion of ionization is attracted by anode 15a, by multiple aperture plasma membrane 17a in saline solution in medial compartment 18a
Flow into anode chamber 18b.Then, producing chlorine at anode 15a, chlorine reacts with water in anode chamber 18b and produces hypochlorous acid
And hydrochloric acid.Meanwhile, sodium ion or water also can be by there being the multiple aperture plasma membrane 17a of water penetration, but due to the hydraulic pressure of each room during electrolysis
It is 0, so the throughput of sodium ion to suppress the trace below for running water benchmark.The acid water generating as described above is (secondary
Chloric acid and hydrochloric acid) flowed out from the 2nd flow export 12b of anode chamber 18b by the 1st discharge pipe arrangement 80b.
After, repeat the process describing above.A series of when being above the electrolysis unit 1 using the 1st embodiment
The explanation of electrolysis water generation action.
As described above, the electrolysis unit 1 of the 1st embodiment is not only when saline solution and water are respectively hydrostatic state, and
When saline solution and water respectively send water, the hydraulic pressure that the hydraulic pressure of anode chamber 18b and cathode chamber 18c also becomes than medial compartment 18a is high,
It is possible to prevent salinity to be mixed in anode chamber 18b and cathode chamber 18c from medial compartment 18a.
The 1st embodiment according to the present invention that have employed above-mentioned composition, the electrolysis unit 1 with 3 Room type electrolytic cells makes
By high patience and while have the multiple aperture plasma membrane of water penetration as the 1st barrier film and 2 barrier film, the current making each room during electrolysis are quiet
Water and eliminate differential water pressures, and, when sending water, medial compartment is lower than the pressure of other rooms such that it is able to prevent salinity to be mixed into anode chamber
It with in cathode chamber, and is difficult to damage barrier film because of chlorine etc., stable electrolysis can be implemented.
(the 2nd embodiment)
Fig. 2 is the schematic configuration diagram of the electrolysis unit 1 of the 2nd embodiment.In the electrolysis unit 1 of the 2nd embodiment,
It is provided with the anode ancillary chamber 90b that capacity is 2L and negative electrode auxiliary further on 1st drainage piping 80b and the 2nd drainage piping 80c
Room 90c.In the 2nd embodiment, other compositions of electrolysis unit 1 are identical with the electrolysis unit 1 of the 1st embodiment.
If as described above, arrange anode ancillary chamber 90b and negative electrode ancillary chamber 90c, even if then reducing anode chamber 18b and the moon
The capacity of room, pole 18c and minimize, it is also possible to increase the amount of the water once supplying, can be by intervals such as the opening and closings of magnetic valve 100
The cycle stretch-out of action was to such as 30 seconds (for example, opened 6 seconds by magnetic valve 100 and close 24 seconds).That is, the 2nd embodiment
Electrolysis unit 1 can be born with alleviator.The gate cycle of magnetic valve 100 is not limited to above-mentioned 30 seconds, it is also possible to be 20 seconds, 40
Second, 50 seconds or 60 seconds.In addition, open the ratio with the time closing magnetic valve 100 to be not limited to above-mentioned 1:4, can suitably change.Example
As by the diameter of overstriking feedwater pipe arrangement 80a and the 1st drainage piping 80b and the 2nd drainage piping 80c, it is also possible to shorten and open electricity
The time of magnet valve 100.
Interval send hydrodynamic(al) to make when changing the water of electrolytic cell 10, if not supplying than the capacity of electrolytic cell 10 more water,
Then can not successfully change.Therefore, the excessive amount sending water than the capacity of electrolytic cell 10, electricity will be estimated in order to change electrolyte solution
Hydrolysis products can generate greatly alkaline water and acid water than aimed concn change.On the other hand, the hypochloric acid water generating at anode chamber 18b
If concentration becomes too high, then acidity increases, and a hypochlorous part becomes chlorine and makes hypochlorous formation efficiency decline.
In 2nd embodiment, beyond electrolytic cell 10, drainage piping is provided with ancillary chamber, and is and electrolytic cell 10
The state of connection.Therefore, the total capacity of anode chamber 18b (cathode chamber 18c) and anode ancillary chamber 90b (negative electrode ancillary chamber 90b) becomes
Greatly, it is possible to reduce sending excessive water during water, hypochloric acid water is difficult to become high concentration simultaneously.
Have employed above-mentioned composition the 2nd embodiment electrolysis unit 1 due to the cycle of intermitten longer, so device
Burden mitigates, and the electrolytically generated efficiency of anode chamber 18b is maintained at high level.
According to the 2nd embodiment, in a same manner as in the first embodiment, the electrolysis unit 1 with 3 Room type electrolytic cells is possible to prevent
Salinity is mixed in anode chamber and cathode chamber, and is difficult to damage barrier film because of chlorine etc., can implement stable electrolysis.
(the 3rd embodiment)
Fig. 3 is the schematic configuration diagram of the electrolysis unit 1 of the 3rd embodiment.According to the electrolysis unit 1 of the 3rd embodiment, make
For the 1st barrier film and the 2nd barrier film of electrolytic cell 10, use amberplex 13a and 13b of water proofing property, divided in electrolytic cell 10
Space.In addition, be not to make liquid-feeding pump 50 intermitten, and action when making it normal.That is, saturated aqueous common salt flows into medial compartment when normal
18a.In the 3rd embodiment, other compositions of electrolysis unit 1 are identical with the electrolysis unit 1 of the 1st embodiment.
In the electrolysis unit 1 of the 3rd embodiment, medial compartment 18a is applied in the hydraulic pressure of 10kPa when normal, on the other hand, pass through
Magnetic valve 100 supplies feedwater, water in anode chamber 18b and cathode chamber 18c for the electrolysis off and on to anode chamber 18b and cathode chamber 18c
It is hydrostatic state and hydraulic pressure is carried out when being 0kPa.Therefore, be in during electrolysis the hydraulic pressure of medial compartment 18a higher than anode chamber 18b and
The state of cathode chamber 18c, amberplex because hydraulic pressure and with electrode adherence.Therefore, the formation efficiency of alkaline water and acid water
Improve with water quality stability.
Usually, the water pushing pressure of cheap pump as little as about 10kPa, flowing water in anode chamber 18b and cathode chamber 18c
Under state, the hydraulic pressure of medial compartment 18a side can step-down.But, if the embodiment of Fig. 3, then due to anode chamber 18b when being electrolysed
With in cathode chamber 18c without flowing water pressure, it is possible at high excellent of the pressure than anode chamber 18b and cathode chamber 18c for the medial compartment 18a
It is electrolysed in the state of choosing.
According to the 3rd embodiment, in a same manner as in the first embodiment, the electrolysis unit 1 with 3 Room type electrolytic cells is possible to prevent
Salinity is mixed in anode chamber and cathode chamber, can implement stable electrolysis.
(the 4th embodiment)
Fig. 4 is the schematic configuration diagram of the electrolysis unit 1 of the 4th embodiment.In the electrolysis unit 1 of the 4th embodiment,
Being provided with magnetic valve 100 on the feedwater pipe arrangement 80a being connected with the 2nd inflow entrance 12a of anode chamber 18b, only anode chamber 18b is by interval
Ground is for feedwater.In 4th embodiment, cathode chamber 18c be set to regulation flow normal when flowing water composition.Now, although cloudy
Produce differential water pressures between room, pole 18c and medial compartment 18a, but between anode chamber 18b and medial compartment 18a, do not produce differential water pressures.Therefore,
It is prevented from salinity to be mixed in anode chamber 18b.In addition, as the 1st barrier film, if, with multiple aperture plasma membrane indefatigable to chlorine
17a, then can enter the electrolysis of line stabilization.Furthermore, it is contemplated that effectively utilize NaOH water, divide cathode chamber 18c and medial compartment
Even if the 2nd barrier film use of 18a has differential water pressures but does not has water penetration, the cation-exchange membrane 13b that will not be mixed into salinity.Now,
The species of the barrier film using is different according to the situation of anode chamber 18b and cathode chamber 18c, so the pH of the saline solution of supply electrolysis
Easily variation.Therefore, saline solution supplies to electrolysis under substantially hydrostatic state, changes when the consumption of saline solution reaches capacity
Saline solution (for example, making the 1st liquid-feeding pump 50 work 30 minutes 1 time) is simultaneously discarded.Therefore, supplying tubing 20a is provided with non-return
Valve 400, dissipates from medial compartment 18a is inverse with the saline solution avoiding water quality to change.In the 4th embodiment, other of electrolysis unit 1
Constitute identical with the electrolysis unit 1 of the 1st embodiment.
According to the 4th embodiment, in a same manner as in the first embodiment, the electrolysis unit 1 with 3 Room type electrolytic cells is possible to prevent
Salinity is mixed in anode chamber 18b and cathode chamber 18c, can implement stable electrolysis.
The invention is not restricted to above-mentioned embodiment, implementation phase, structure can be changed in the range of without departing from its main idea
Become key element and embody.Furthermore it is possible to formed by the appropriately combined of multiple inscapes disclosed in above-mentioned embodiment
Various inventions.For example, it is also possible to delete several inscape from the whole inscapes shown in embodiment.And then, it is possible to
Inscape with appropriately combined different embodiment.
For example, the material beyond electrolyte solution also can be saline solution, can select according to purposes in good time.In addition, it is raw
The electrolysis water becoming is also not necessarily limited to hypochloric acid water and NaOH water, can select according to purposes in good time.
In addition, the time that in above-mentioned each embodiment, explanation, magnetic valve 100 opening/closing time, supply are electrolysed is permissible
Suitably change according to purpose.For example, it is desirable to when making the hypochlorous concentration of generation double, can be applied to anode 15a's
The value of voltage doubles, it is also possible to does not change the magnitude of voltage of applying, and is about 2 times by the time lengthening of closedown magnetic valve 100.Separately
Outward, by increasing the setting value of the water pushing pressure of liquid-feeding pump 50, it is also possible to shorten the time opening magnetic valve 100.
Claims (23)
1. an electrolysis unit, it possesses：
Electrolytic cell, described electrolytic cell has：It is divided into and flow through the 1st barrier film of the medial compartment of electrolyte solution and anode chamber, be divided into
2nd barrier film of described medial compartment and cathode chamber and described 1st barrier film be oppositely disposed in described anode chamber anode and with institute
State the 2nd barrier film to be oppositely disposed in the negative electrode of described cathode chamber；
Water supply unit, while described water supply unit supplies feedwater to described anode chamber and described cathode chamber, changes off and on to institute
State the supply discharge rate of the water of at least one of anode chamber and described cathode chamber；
Electrolyte solution supply unit, described medial compartment is supplied and discharges electrolyte solution by it；With
Control unit, the supply discharge rate of its described water of at least one at described anode chamber and described cathode chamber diminishes or hydrostatic
In the state of, by described anode and described negative electrode are applied voltage and are electrolysed described electrolyte solution.
2. electrolysis unit according to claim 1, wherein, described water supply unit has：From water-supply source to described anode chamber
Import the feedwater pipe arrangement of water and the electromagnetism being arranged at feedwater pipe arrangement described in the described opening and closing fed water on pipe arrangement with described cathode chamber
Valve,
Described magnetic valve is opened and closed the stipulated time by described control unit off and on, and control is to described anode chamber and described negative electrode
The feedwater of the interval of at least one of room is discharged.
3. electrolysis unit according to claim 1 and 2, wherein, is carried out the described anode that the feedwater of described interval is discharged
At least one of room and described cathode chamber diminishes or hydraulic pressure during hydrostatic is below 10KPa in the supply discharge rate of described water.
4. the electrolysis unit according to according to any one of claims 1 to 3, wherein, is carried out the feedwater discharge of described interval
At least one of described anode chamber and described cathode chamber diminishes or hydraulic pressure ratio during hydrostatic is described in the supply discharge rate of described water
The hydraulic pressure of medial compartment is low.
5. the electrolysis unit according to according to any one of Claims 1 to 4, wherein, is carried out the feedwater discharge of described interval
The hydraulic pressure when the supply discharge quantitative change of described water is big at least one of described anode chamber and described cathode chamber is than the confession of described water
Discharge go out quantitative change big when the hydraulic pressure of described medial compartment high.
6. the electrolysis unit according to according to any one of Claims 1 to 5, wherein, is carried out the feedwater discharge of described interval
At least one of described anode chamber and described cathode chamber is divided with the multiple aperture plasma membrane with water penetration by described medial compartment.
7. electrolysis unit according to claim 6, wherein, the water penetration of described multiple aperture plasma membrane be 0.1～100mL/ divide/
cm2In the range of/MPa.
8. the electrolysis unit according to claim 6 or 7, wherein, the aperture of described multiple aperture plasma membrane is the scope of 2～1000nm
In.
9. the electrolysis unit according to according to any one of claim 1～8, wherein, is carried out the feedwater discharge of described interval
The volume of at least one of described anode chamber and described cathode chamber is more than 200cc.
10. the electrolysis unit according to according to any one of claim 1～8, wherein, discharges with the feedwater being carried out described interval
Described anode chamber and at least one drainage piping connecting of described cathode chamber there is ancillary chamber, the volume of described anode chamber and
The volume of described cathode chamber amounts to more than 200cc with the volume of described ancillary chamber.
11. electrolysis units according to according to any one of claim 1～10, wherein, arrange with the feedwater being carried out described interval
The described anode chamber going out compares with the volume of at least one of described cathode chamber, and the quantity delivered of the described water carrying out off and on is more
Many.
12. electrolysis units according to according to any one of claim 1～11, wherein, arrange with the feedwater being carried out described interval
The described anode chamber going out and at least one drainage piping connecting of described cathode chamber are provided with check-valves.
13. electrolysis units according to claim 12, wherein, described check-valves is opened when being more than the hydraulic pressure of regulation
Safety valve, is carried out the described anode chamber that the feedwater of described interval discharges and at least one of described cathode chamber is quiet at described water
It is applied in the hydraulic pressure of regulation during water.
14. electrolysis units according to claim 13, wherein, the hydraulic pressure of described regulation is below 10KPa.
15. electrolysis units according to according to any one of claim 1～14, wherein, are supplied to the described electricity of described medial compartment
Solving matter liquid is to supply the amount of described electrolyte during electrolysis to diminish or the state of hydrostatic.
16. electrolysis units according to according to any one of claim 1～15, described electrolyte solution supply unit has：Store electricity
Solve the electrolyte flow container of matter liquid, the electrolyte solution by described electrolyte flow container is directed into the supplying tubing of described medial compartment and sets
Be placed in the conveying pump in described supplying tubing, described control unit by described conveying pump described electrolyte solution supplied off and on to
Described medial compartment.
17. electrolysis units according to according to any one of claim 1～16, wherein, described electrolyte solution supply unit has：Will
Electrolyte solution at described middle indoor moveable from the discharge pipe arrangement that described medial compartment is discharged and is arranged at described discharge pipe arrangement
Check-valves.
18. electrolysis units according to claim 17, wherein, described check-valves be than supply to being carried out described interval
The described anode chamber that discharges of feedwater and the supply discharge rate of the water of at least one of described cathode chamber diminishes or water during hydrostatic
Press the safety valve opened under high hydraulic pressure.
19. 1 kinds of electrolyzed water producing methods, it is to utilize to have the electrolysis unit of electrolytic cell to generate the electrolysis of electrolysis water aquatic
One-tenth method, described electrolytic cell has：The medial compartment that separated by the 1st barrier film and the 2nd barrier film, the anode of the both sides being positioned at this medial compartment
Room and cathode chamber are oppositely disposed in the anode of described anode chamber with described 1st barrier film and relatively set with described 2nd barrier film
Being placed in the negative electrode of described cathode chamber, wherein, described electrolyzed water producing method comprises：
Supply electrolyte solution to described medial compartment,
Supply feedwater to described anode chamber and cathode chamber,
Change the supply discharge rate of the water of at least one to described anode chamber and described cathode chamber off and on,
Supply discharge rate at the described water of at least one of described anode chamber and described cathode chamber diminishes or in the state of hydrostatic,
The electrolyte solution being electrolysed in described medial compartment by voltage is applied to described anode and described negative electrode, and in described anode chamber and
At least one of described cathode chamber generates electrolysis water.
20. electrolyzed water producing methods according to claim 19, wherein, at least one of described anode chamber and cathode chamber
Feedwater and stopping feedwater off and on, in the state of stopping feedwater, applies voltage to described anode and negative electrode at intervals of set time.
21. electrolyzed water producing methods according to claim 20, wherein, feed water synchronously to institute with described feedwater and stopping
State medial compartment supply off and on and stop supplying electrolyte solution.
22. electrolyzed water producing methods according to according to any one of claim 19～21, wherein, for described anode chamber and the moon
At least one of room, pole, makes the supply discharge rate of described water diminish or hydraulic pressure during hydrostatic is lower than the hydraulic pressure of described medial compartment.
23. electrolyzed water producing methods according to according to any one of claim 19～22, wherein, for being carried out described interval
The described anode chamber that discharges of feedwater and at least one of described cathode chamber, make the supply of described water discharge quantitative change big when hydraulic pressure
Higher than the hydraulic pressure of described medial compartment.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014192939 | 2014-09-22 | ||
| JP2014-192939 | 2014-09-22 | ||
| PCT/JP2015/054981 WO2016047161A1 (en) | 2014-09-22 | 2015-02-23 | Electrolytic device and electrolyzed water generation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106460206A true CN106460206A (en) | 2017-02-22 |
Family
ID=55580705
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580033138.4A Pending CN106460206A (en) | 2014-09-22 | 2015-02-23 | Electrolytic device and electrolyzed water generation method |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20160194770A1 (en) |
| CN (1) | CN106460206A (en) |
| WO (1) | WO2016047161A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108640229A (en) * | 2018-03-28 | 2018-10-12 | 广州市康亦健医疗设备有限公司 | A kind of acidification water generating device of time variant electrolytic tank electrode |
| CN111699280A (en) * | 2018-03-27 | 2020-09-22 | 株式会社德山 | Electrolytic cell for alkaline water electrolysis |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2017268084B2 (en) | 2016-05-17 | 2022-11-17 | Diversey, Inc. | Alkaline and chlorine solutions produced using electro-chemical activation |
| JP6776077B2 (en) * | 2016-09-26 | 2020-10-28 | 株式会社東芝 | Electrolyzed water production equipment |
| EP3574131B1 (en) | 2017-01-26 | 2021-04-28 | Diversey, Inc. | Neutralization in electro-chemical activation systems |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2016047161A1 (en) | 2016-03-31 |
| US20160194770A1 (en) | 2016-07-07 |
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