JPH10472A - Electrolytic water generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve electrolysis efficiency by increasing chlorine ion concentration near the surface of an electrode plate by applying direct current voltage to raw water in an electrolytic bath through the electrode plate and installing a means for supplying salt water from the surface of the electrode plate to the raw water in the electrolytic bath. SOLUTION: An electrolytic bath 1 is partitioned into chambers 3, 4 by a diaphragm 2, electrode plates 5, 6 are installed in the chambers 3, 4, a raw water supply means 7 for supplying raw water is connected to the chambers 3, 4 and drain pipes 12, 13 are connected to the upper parts of the chambers 3, 4. A salt water supply part 32 having numbers of small holes is installed in the upstream part of the electrode plate 6 of the second chamber 4 to be an anode chamber which produces strong acid water, and a salt water tank 23 is connected to the salt water supply part 32 through salt water piping 30 and a pump 22. With raw water supplied from the supply means 7 to the chambers 3, 4, a direct current power source 15 is applied to make an electrode terminal 24 negative and an electrode terminal 25 positive, a salt water pump 22 is actuated simultaneously, and an appropriate amount of salt water 23 is supplied from the supply part 32.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrolyzed water generating apparatus for electrolyzing raw water such as tap water and well water to produce strongly acidic water used as sterilizing and washing water.

[0002]

2. Description of the Related Art The prior art of an electrolyzed water generating apparatus which is usually used by being connected to a water tap or the like is disclosed in Japanese Unexamined Patent Publication No. Hei.
It is disclosed in Japanese Patent No. 330987 and will be described below with reference to FIG.

[0003] In the figure, reference numeral 1 denotes an electrolytic cell, and the inside thereof is a first membrane with a diaphragm 2.
A chamber 3 and a second chamber 4 are partitioned, and both chambers 3 and 4 are provided with electrode plates 5 and 6 integrally with or separately from the inner wall. Raw water supply means 7 for supplying raw water such as tap water and well water is connected to both chambers 3 and 4. Raw water is supplied to the first chamber 3 and the second chamber 4 via the supply pipe 9 and the branch pipe 11 at the joint 10. Also, a joint 8 is connected to the raw water supply pipe 9,
A pump 22 and a salt water tank 23 are connected to the joint 8.

A first drain pipe 12 and a second drain pipe 13 are connected to the upper portions of the first chamber 3 and the second chamber 4, respectively.
The acidic water drain pipe 16 and the alkaline water drain pipe 17 are connected via a first on-off valve 18 and a second on-off valve 20, respectively.

[0005] A bypass pipe 12 a is connected to the first drain pipe 12 on the upstream side of the first on-off valve 18, and the bypass pipe 12 a is connected to the alkaline water-side drain pipe 17 via a third on-off valve 21. You. Also, a second upstream side of the second on-off valve 20
The drain pipe 13 is connected to a bypass pipe 13 a, and the bypass pipe 13 a is connected to the acidic drain pipe 16 via a fourth on-off valve 19.

The electrode plates 5 and 6 of the electrolytic cell 1 have electrode terminals 2
The forward / reverse voltage switch 14 is connected to the DC / DC converter 15 via a DC power supply 15.
Is connected. The forward / reverse voltage switch 14 switches the polarity of the DC power supply 15 alternately, for example, every two hours to apply the voltage between the electrode terminals 24 and 25, and in conjunction with the switching, switches the first to fourth on-off valves 18, 19, 20, 21
For example, the electrode terminal 24 is positive,
When the electrode terminal 25 is negative, the first on-off valve 18 and the second on-off valve 20 are opened, the third on-off valve 21 and the fourth on-off valve 19 are closed, and conversely, the electrode terminal 25 is positive and the electrode terminal is 24
Is negative, the first on-off valve 18 and the second on-off valve 20
Is closed, and the third on-off valve 21 and the fourth on-off valve 19 are switched to open.

In the electrolyzed water generating apparatus having such a configuration, in the state where the saline solution in the salt tank 23 is mixed and diluted with the raw water and supplied to the first chamber 3 and the second chamber 4 in the electrolytic cell 1, The DC power source 15 is applied so that the electrode terminal 24 is positive and the electrode terminal 25 is negative, and at the same time, the first on-off valve 18 and the second on-off valve 20 are opened, and the third on-off valve 21 and the fourth
When the on-off valve 19 is closed, the first chamber 3 is an anode chamber and the second chamber 4 is a cathode chamber in the electrolytic cell 1, and the acidic water is
In the second chamber 4, alkaline water is produced, and the produced acidic water and alkaline water are respectively taken out from the acidic water side drain pipe 16 and the alkaline water side drain pipe 17.

The DC power supply 1 is switched so that the electrode terminal 24 is negative and the electrode terminal 25 is positive.
5 and simultaneously the first on-off valve 18 and the second on-off valve 20
Is closed and the third on-off valve 21 and the fourth on-off valve 19 are opened, in the electrolytic cell 1, the first chamber 3 becomes the cathode chamber, the second chamber 4 becomes the anode chamber, and the first chamber 3 contains the alkaline water. In the second chamber 4, acidic water is produced, and the produced acidic water and alkaline water are respectively taken out from the acidic water side drain pipe 16 and the alkaline water side drain pipe 17.

In the production of the acidic water, the salt (N
aCl) has the effect of lowering the electric resistance of raw water to lower the voltage during electrolysis and stabilizing electrolysis.
The greatest effect is to supply Cl ions for producing dichlorite (HClO) having a bactericidal and disinfecting action by electrolysis. That is, when there is no chlor (Cl) ion in the raw water, dichlorous acid (HClO) is not generated.

Generally, when obtaining strongly acidic water (pH ≒ 2.5, ORP ≒ 1100 mV, dichlorous acid (HClO) ≒ 10 to 30 ppm) which is effective for sterilization, disinfection and antibacterial, salt water is added and mixed. The concentration of salt (NaCl) after dilution is 500 to 2000 pp
It is necessary to electrolyze with m.

[0011]

As described above, in the prior art, since salt water is mixed and diluted with raw water, the salt water is simultaneously supplied to the cathode side for producing alkaline water and the anode side for producing acidic water at the same concentration. Have been.

Here, alkaline water is discarded because it is hardly used for sterilization, disinfection and antibacterial.
As described above, it contains the same amount of salt as the acidic water side.

In general, sodium (Na) ions have a concentration of 50
It is said that if the ppm and chlor (Cl) ions exceed 200 ppm, salt damage such as germination suppression will be caused to plants, and it is not preferable to discard 500 to 2,000 ppm of salt water after salt solution addition and dilution.

The electrolysis action always occurs only on the surface of the electrode plate. In other words, it is necessary to collect more chlor (Cl) ions near the surface of the electrode plate.
This leads to improved production efficiency.

Further, dichlorous acid (HCl
O) By narrowing down to the minimum amount of salt water required for generation, the amount of salt water required for generating the same amount of strongly acidic water can also be reduced, so that salt water preparation work that requires human labor in operation of the apparatus is reduced, and A single supply of salt water can continuously generate more strongly acidic water, which leads to labor savings.

In this regard, it is not desirable to uniformly mix and dilute the salt water 23 in the raw water before flowing into the electrolytic cell 1 as in the prior art.

According to the present invention, in producing such strongly acidic water, the concentration of salt (NaCl) in the vicinity of the electrode surface of the anode chamber for producing strongly acidic water is positively increased to solve the above-mentioned problems of the prior art. It is an object to provide a water generation device.

[0018]

In order to achieve the above object, the present invention provides an electrolytic cell having an electrode plate facing the inside thereof, a means for passing raw water through the electrolytic cell, The electrolytic water generating apparatus includes means for applying a DC voltage to the raw water to flow a DC current, and means for supplying salt water from the electrode plate surface to the raw water in the electrolytic cell.

According to the present invention, the chlor (Cl) ion concentration in the vicinity of the electrode plate surface is increased to improve the electrolysis efficiency and to reduce the amount of salt water consumed, which is effective for suppressing salt damage and reducing the frequency of salt water addition. Becomes

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention provides an electrolytic cell having an electrode plate facing the inside thereof, a means for passing raw water through the electrolytic cell, and a method for supplying raw water in the electrolytic cell. Electrolysis characterized by comprising means for applying a DC voltage to flow a DC current, providing means for adding salt to raw water in the electrolytic cell, and generating strongly acidic water containing dichlorous acid by electrolysis. This is a water generator, which can increase the concentration of salt water near the surface of the electrode plate to reduce the amount of salt consumed, efficiently generate dichlorous acid (HClO), It has the effect of reducing salt content and suppressing salt damage.

According to a second aspect of the present invention, in the electrolyzed water generating apparatus of the first aspect, the electrode plate has a salt water passage, and means for supplying the salt water from the passage is provided. A structure in which a strongly acidic water generating reaction is caused to occur on both surfaces of the electrode plate, and a combination of an anode chamber and a cathode chamber in an electrolytic cell is configured as one to two or more sets. This has the effect that the size of the device can be reduced.

According to a third aspect of the present invention, there is provided an electrolytic cell having an electrode plate facing the inside, a means for passing raw water through the electrolytic cell, and applying a DC voltage to the raw water in the electrolytic cell. Means for flowing a direct current, and means for switching the polarity of the direct current voltage applied to each of the opposed electrode plates, and means for adding salt water to raw water in the electrolytic cell from a water passage formed in each of the opposed electrode plates. An electrolyzed water generating apparatus, comprising: a supply switching unit for supplying the salt water to the water passages of the opposed electrode plates; and a switching operation of the polarity switching unit and the supply switching unit for the salt water synchronized. This makes it possible to synchronize the polarity switching operation with the switching of the electrode for supplying salt water to continuously generate strongly acidic water, thereby improving the utilization efficiency.

According to a fourth aspect of the present invention, there is provided an electrolytic cell having an electrode plate facing inside and having no diaphragm, means for passing raw water through the electrolytic cell, A means for applying a DC voltage to the raw water in the cell to flow a direct current, and a means for adding salt water to the raw water in the electrolytic cell, and a means for laminarizing the flow of the raw water in the electrolytic cell when the water flows. An electrolytic water generation apparatus characterized in that the diffusion due to the flow of salt water in the vicinity of the electrode plate is suppressed.
The flow at the time of water flow inside the electrolytic cell is made laminar to suppress the diffusion of salt water (NaCl) near the electrode plate due to the flowing water, and a diaphragm is not required. Chlorine (Cl) ion concentration in the vicinity can be kept high, and the effect is that the efficiency can be further improved.

According to a fifth aspect of the present invention, there is provided an electrolytic cell having an electrode plate facing inside and having no diaphragm, means for passing raw water through the electrolytic cell, A means for applying a DC voltage to the raw water in the cell to flow a DC current, a means for adding salt water to the raw water in the electrolytic cell from a water passage formed in the electrode plate, and a method for supplying the raw water in the electrolytic cell. A means for laminarizing the flow of water, suppressing the diffusion due to the flow of salt water near the electrode plate, and producing an acidic water generation reaction on both surfaces of the electrode plate. In addition, salt water is supplied from both sides of the electrode to generate a strong acidic water generation reaction on both sides of the electrode plate, thereby further improving the efficiency and combining one to two sets of the anode chamber and the cathode chamber in the electrolytic cell. Or, it can be configured in multiple sets of more And has a function of high efficiency can be achieved.

According to a sixth aspect of the present invention, there is provided an electrolytic cell having an electrode plate facing inside and having no diaphragm, means for passing raw water through the electrolytic cell, A means for applying a DC voltage to the raw water in each of the electrode plates to flow a DC current, a polarity switching means for the DC voltage to be applied to each of the electrode plates, and a raw water in the electrolytic cell formed on each of the electrode plates. A means for adding salt water from each water passage, a means for switching salt water supplied to each water passage, and a means for laminating a flow of raw water inside the electrolytic tank when water flows, the polarity switching means; It is a device for generating electrolyzed water, characterized in that the switching operation of the salt water switching means is synchronized,
In an electrolytic cell without a diaphragm, by synchronizing the polarity switching operation of the electrode plate and the salt water switching operation, it is possible to efficiently and continuously generate strongly acidic water, thereby further improving efficiency and continuously. It has the effect of increasing utilization efficiency by generating strong acidic water.

Hereinafter, an embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIGS. The same components as those of the conventional example are denoted by the same reference numerals and will be described.

(Embodiment 1) FIG. 1 shows a configuration diagram of an electrolyzed water generating apparatus according to Embodiment 1 of the present invention.

In the figure, reference numeral 1 denotes an electrolytic cell, which is divided into two chambers, a first chamber 3 and a second chamber 4, by a diaphragm 2, and both of the chambers 3, 4 are integrated with the inner walls or separately from the electrode plates 5, 6, respectively. Is provided. Raw water supply means 7 for supplying raw water such as tap water and well water is connected to both chambers 3 and 4. A first drain pipe 12 and a second drain pipe 13 are connected to upper portions of the first chamber 3 and the second chamber 4, respectively. Further, a salt water supply section 32 having a large number of small holes is provided in an upstream portion of the electrode plate 6 of the second chamber 4 serving as an anode chamber for generating strong acid water. , A pump 22 is connected to a salt water tank 23. In the figure, 14 is a forward / reverse voltage switch, 15 is a DC power supply, and 24 and 25 are electrode terminals.

In such an electrolyzed water generating apparatus, when raw water is supplied from the raw water supply means 7 to the first chamber 3 and the second chamber 4 in the electrolytic cell 1, the electrode terminal 24 is negative and the electrode terminal 24 is negative. When the DC power supply 15 is applied so that the terminal 25 becomes positive, and the salt water pump 22 is simultaneously operated to supply an appropriate amount of the salt water 23 from the salt water supply unit 32, the first chamber 3 in the electrolytic cell 1 becomes the cathode chamber, The chamber 4 serves as an anode chamber. Alkaline water is generated in the first chamber 3, and strongly acidic water is generated in the second chamber 4. The generated alkaline water and strongly acidic water are supplied to the first and second drain pipes 12 and 13, respectively. Swept away.

Here, AA ', B-
FIG. 2 shows the distribution state of the chlor (Cl) ion concentration in the B ′ section. In the figure, mx is the chlor (Cl) ion concentration of each part, M 0 is the chlor (Cl) ion concentration of the supplied salt water,
The percentage of the relative value is the scale of the vertical axis, and the horizontal axis is the position between the PQ points of the electrode plates 5 and 6.

Here, reference numeral 40 denotes chlor (Cl) ion concentration characteristics in the case of adding salt water in the prior art, and 41 denotes chlor (Cl) in the AA 'section in the case of adding salt water in the present invention.
Reference numeral 42 denotes the ion concentration characteristic of the chlor (Cl) ion cross section along the line BB 'when the salt water is added in the present invention.

According to the chlor (Cl) ion concentration characteristic 40 in the case of adding salt water according to the prior art, the salt water 23 is mixed and diluted before entering the electrolytic cell, so that the concentration distribution in the electrolytic cell 1 is almost uniform. In order to sufficiently increase the chlor (Cl) ion concentration near the surface of the electrode plate 6 on the anode chamber side, it is necessary to make the entire electrolytic cell 1 relatively high in concentration.

On the other hand, in the case of adding salt water in the present invention, A
The chlor (Cl) ion concentration characteristic 41 in the -A 'cross section can increase the chlor (Cl) ion concentration only near the surface of the electrode plate 6 on the anode chamber side, and the concentration of the entire electrolytic cell 1 can be relatively suppressed. .

When the inside of the electrolytic cell 1 has a parallel plate structure or a concentric cylindrical structure, an extremely turbulent flow does not occur. Therefore, the chlor (Cl) ion concentration characteristic 42 on the downstream BB 'section of the electrolytic cell 1 is obtained. Also in this case, the chlor (Cl) ion concentration near the surface of the electrode plate 6 on the anode chamber side can be kept high.

As described above, increasing the chlor (Cl) ion concentration in the vicinity of the surface of the electrode plate 6 on the anode chamber side improves the efficiency of generating dichlorous acid (HClO) during electrolysis. In addition, it is possible to reduce the so-called useless salt which is not involved in the production of dichlorous acid (HClO). In particular, it is possible to extremely reduce the salt in the first chamber 3 on the cathode side for generating alkaline water. It is possible.

(Embodiment 2) FIG. 3 shows a configuration diagram around an electrolytic cell of an electrolyzed water generating apparatus according to Embodiment 2 of the present invention. The characteristic configuration of this electrolyzed water generating apparatus is as follows: a second shell electrode terminal 24a is provided as shown, and second shell chambers 3a and 4a are provided on both sides in the electrolytic cell 1; The part is provided with a hollow electrode 33 having a hollow inside and having a salt water supply part on both sides.

Here, the shell is a set of a pair of electrode plates to which plus and minus are applied.

In the electrolyzed water generating apparatus according to the second embodiment, two shells can be formed in the electrolyzer 1. That is, the area where the chlor (Cl) ion concentration can be increased only in the vicinity of the electrode plate as described in the first embodiment is defined as the hollow electrode 33.
On both sides. Therefore, the area ratio of the electrolysis operation with respect to the total surface area of the electrodes is increased, and as a result, the electrolytic cell 1 can be downsized for the same amount of generation.

(Embodiment 3) FIG. 4 shows a configuration diagram of an electrolyzed water generating apparatus according to Embodiment 3 of the present invention. In the third embodiment, the configuration and the operation state on the downstream side of the electrolytic cell 1 are the same as those in the related art.

As a characteristic configuration, a salt water supply section 32a to the first chamber 3 side and a salt water supply section 32b to the second chamber 4 side are provided.
a, and a saltwater supply line 32b is connected to a saltwater pipe 30b for supplying saltwater. In addition, salt water on-off valves 31a and 31b for switching the salt water 23 from the pump 22 to one of the salt water pipes 30a and 30b are provided.

In such an electrolyzed water generator, when the raw water is supplied to the first chamber 3 and the second chamber 4 in the electrolytic cell 1, the electrode terminal 24 is positive and the electrode terminal 25 is negative. A DC power supply 15 is applied so that the salt water on-off valve 31a is opened and the salt water on-off valve 31b is closed at the same time, and the salt water 23 from the pump 22 is fed from the salt water supply part 32a into the first chamber 3 through the salt water pipe 30a. The first on-off valve 18 and the second on-off valve 20 are opened, and the third on-off valve 21 and the fourth on-off valve 1 are opened.
9 is closed, in the electrolytic cell 1, the first chamber 3 is the anode chamber, and the second chamber 3 is the second chamber.
The chamber 4 serves as a cathode chamber, and strongly acidic water is generated in the first chamber 3 and alkaline water is generated in the second chamber 4. The generated strongly acidic water and alkaline water are respectively discharged into the acidic water side drain pipe 16 and the alkaline water side drainage. It is taken out from the pipe 17.

The DC power supply 1 is switched so that the electrode terminal 24 is negative and the electrode terminal 25 is positive.
5 and at the same time, the salt water on-off valve 31a is closed and the salt water on-off valve 31b is opened to supply the salt water 23 from the pump 22 from the salt water supply part 32b into the second chamber 4 through the salt water pipe 30b, Closing the first on-off valve 18 and the second on-off valve 20,
When the third on-off valve 21 and the fourth on-off valve 19 are opened, in the electrolytic cell 1, the first chamber 3 becomes a cathode chamber and the second chamber 4 becomes an anode chamber. Then, strongly acidic water is produced, and the generated strongly acidic water and alkaline water are respectively taken out from the acidic water side drain pipe 16 and the alkaline water side drain pipe 17.

According to this configuration, in addition to the effects of the first embodiment, strongly acidic water can be continuously generated, and the utilization efficiency of the apparatus is improved.

(Embodiment 4) FIG. 5 shows a configuration diagram around an electrolytic cell of an electrolyzed water generating apparatus according to Embodiment 4 of the present invention. A feature of the fifth embodiment of the present invention is that the effect of the first embodiment is further enhanced by laminating the flow of water inside the electrolytic cell 1.

For this reason, a water guide 34 is provided for making the pressure and flow of water at the entrance of the electrolytic cell 1 gentle and uniform, and a rectifying plate 35 is provided downstream thereof.

In this configuration, when the raw water is supplied to the electrolytic cell 1, the flow in the electrolytic cell 1 moves very little in the vertical (horizontal) direction with respect to the vertical flow of the water. To form When the salt water 23 is gently supplied from the salt water supply unit 32 into the flow forming such a laminar flow, the salt water 23 flows downstream (upward in the figure) without diffusing along the electrode plate 6. .

FIG. 2 shows cross sections CC ′ and D in the electrolytic cell 1.
The distribution state of the chlor (Cl) ion concentration of -D 'is shown. 43 in the figure indicates C in the case of addition of salt water in the fourth embodiment.
The chlor (Cl) ion concentration characteristics in the -C 'section and the chlor (Cl) ion concentration characteristics in the DD' section in the case of addition of the salt water in the fourth embodiment are shown at 44.

In the fourth embodiment, since the flow in the electrolytic cell 1 is made laminar, the vicinity of the surface of the electrode plate 6 has a higher chlor (Cl) ion concentration and a higher concentration than in the first embodiment. Further, since there is little movement in the lateral direction, the state can be maintained on the downstream side. That is, the effect shown in the first embodiment is further enhanced.

(Embodiment 5) FIG. 6 shows a configuration diagram around an electrolytic cell of an electrolyzed water generating apparatus according to Embodiment 5 of the present invention.

The fifth embodiment is a combination of the laminarization means of the fourth embodiment and the employment of the hollow electrode 33 of the second embodiment. Is what makes it possible.

Here, a laminar flow is formed on both surfaces of the hollow electrode 33. Therefore, when the salt water 23 is gently supplied into the electrolytic cell 1, the salt water flows along the surface of the hollow electrode 33, so that the chlor (Cl) ion is higher near the surface of the electrode plate 6 as in the fourth embodiment. Since the concentration is set and the electrolytic action can be performed on both surfaces, the electrolytic cell 1 can be reduced in size by forming two or more shells.

(Embodiment 6) FIG. 7 shows a configuration diagram of an electrolyzed water generating apparatus according to Embodiment 6 of the present invention.

The feature of the sixth embodiment is that the laminarization means of the fourth embodiment is combined with the salt water supply means synchronized with the voltage polarity switching operation of the third embodiment.

Here, a laminar flow without lateral movement is formed in the electrolytic cell 1, and when the salt water 23 is gently supplied from the salt water supply part 32a or 32b of the electrode plate 5 or 6, the salt water is discharged. It flows along the surface of the plate 5 or the electrode plate 6 and the vicinity of the surface of the electrode plate 5 or the electrode plate 6 has a higher chlor (Cl) ion concentration as in the fourth embodiment. By synchronizing the switching of the salt water supply unit 32a or the salt water supply unit 32b to be supplied with the voltage polarity switching, it is possible to generate the highly acidic water more efficiently and continuously.

[0055]

According to the present invention, the electrolyzed water generator can supply the salt water from the surface of the electrode plate in the electrolyzer.

Thus, the concentration of chlor (Cl) ions in the vicinity of the electrode plate surface is increased to improve the electrolysis efficiency and reduce the amount of salt water consumed, which is effective for suppressing salt damage and reducing the frequency of salt water addition.

Further, the electrode is made hollow so that the inside is a passage for salt water, so that salt water can be supplied from both sides of the electrode. This makes it possible to reduce the size of the electrolytic cell.

Alternatively, electrode plates capable of supplying salt water from the surface are used on both sides of the electrolytic cell, and the salt water supply electrode is selected in synchronization with the switching of the electrode polarity.

Thus, it is possible to continuously generate strongly acidic water while switching the electrodes. Further, the flow state in the electrolytic cell is set to be a laminar flow, and a means capable of supplying salt water from the electrode surface to the electrolytic cell for suppressing turbulence near the electrode surface is used.

As a result, the chlor (Cl) ion concentration in the vicinity of the electrode plate can be kept high even on the downstream side in the electrolytic cell, and the efficiency can be further improved.

Further, the state of the flow in the electrolytic cell is assumed to be laminar,
In the means capable of supplying salt water from the electrode surface to the electrolytic cell that suppresses turbulence near the electrode surface, the electrode is hollow and the inside is a passage for salt water, so that salt water can be supplied from both sides of the electrode.

This enables high efficiency and downsizing of the electrolytic cell. In the means for supplying salt water from the electrode surface to the electrolytic cell that suppresses turbulence near the surface of the electrode, the electrode plate capable of supplying salt water from the surface is provided on both sides of the electrolytic cell. The salt water supply electrode is selected in synchronization with the switching of the polarity of the electrode.

As a result, it is possible to provide an electrolyzed water generating apparatus which is highly efficient and continuously generates strongly acidic water while switching electrodes.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an electrolyzed water generation device according to a first embodiment of the present invention.

FIG. 2 is a chlor (Cl) ion concentration distribution diagram in the electrolytic cell according to the present invention.

FIG. 3 is a configuration diagram near an electrolytic cell of an electrolyzed water generator according to Embodiment 2 of the present invention.

FIG. 4 is a configuration diagram of an electrolyzed water generation device according to a third embodiment of the present invention.

FIG. 5 is a configuration diagram near an electrolytic cell of an electrolyzed water generator according to Embodiment 4 of the present invention.

FIG. 6 is a configuration diagram near an electrolytic cell of an electrolyzed water generation device according to a fifth embodiment of the present invention.

FIG. 7 is a configuration diagram of an electrolyzed water generator according to Embodiment 6 of the present invention.

FIG. 8 is a configuration diagram of a conventional electrolyzed water generating apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electrolysis tank 2 Diaphragm 3 1st chamber 4 2nd chamber 5 Electrode plate 6 Electrode plate 7 Raw water supply means 12 1st drainage pipe 13 2nd drainage pipe 14 Forward / reverse voltage switch 15 DC power supply 22 Pump 23 Salt water 24 Electrode terminal 25 Electrode terminal 30 Salt water pipe 32 Salt water supply section

Claims (6)

[Claims] An electrolytic cell having an electrode plate facing the inside thereof;
Means for passing raw water through the electrolytic cell, means for applying a DC voltage to the raw water in the electrolytic tank to flow a DC current, and means for adding a salt to the raw water in the electrolytic tank; An electrolyzed water generator characterized by producing strongly acidic water containing dichlorous acid. 2. The electrode plate has a salt water passage section, and means for supplying salt water from the water passage section is provided, so that a strongly acidic water generation reaction is caused on both surfaces of the electrode plate. The electrolyzed water generation device according to claim 1. 3. An electrolytic cell having an electrode plate facing the inside thereof,
Means for passing raw water through the electrolytic cell, means for applying a DC voltage to the raw water in the electrolytic cell to flow a DC current, and a polarity switching means for the DC voltage applied to each of the opposed electrode plates, A means for adding salt water to raw water in the electrolytic cell from a water passage formed in each of the opposed electrode plates; and a supply switching means for supplying salt water to the water passage in each of the opposed electrode plates, wherein the polarity switching is performed. An electrolyzed water generating apparatus, wherein the switching operation of the means and the salt water supply switching means is synchronized. 4. An electrolytic cell having an electrode plate facing inside and having no diaphragm, means for passing raw water through the electrolytic cell, and applying a DC voltage to the raw water in the electrolytic cell. A means for flowing a direct current; a means for adding salt water to the raw water in the electrolytic cell; a means for laminarizing the flow of the raw water in the electrolytic cell when flowing; An electrolyzed water generator characterized by suppressing diffusion due to water. 5. An electrolytic cell having an electrode plate facing inside and having no diaphragm, means for passing raw water through the electrolytic cell, and applying a DC voltage to the raw water in the electrolytic cell. A means for flowing a direct current; a means for adding salt water to the raw water in the electrolytic cell from a water passage formed in the electrode plate; and a means for laminarizing the flow of the raw water in the electrolytic cell when the water flows. An electrolyzed water generating apparatus characterized in that diffusion due to a flowing flow of salt water near the electrode plate is suppressed, and a strong acidic water generation reaction occurs on both surfaces of the electrode plate. 6. An electrolytic cell having an electrode plate facing inside and having no diaphragm, means for passing raw water through the electrolytic cell, and direct current supplied to the raw water in the electrolytic cell by each of the electrode plates. Means for applying a voltage to flow a direct current, means for switching the polarity of the DC voltage applied to each of the electrode plates, and means for adding salt water to the raw water in the electrolytic cell from each of the water passages formed on each of the electrode plates. Means for switching the salt water to be supplied to each of the water passages, and means for laminating the flow of the raw water in the electrolytic cell when the water flows, and synchronizes the switching operation of the polarity switching means and the salt water switching means. An electrolyzed water generator characterized by the following.