JPH11169856A - Electrolytic water producing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the electrolytic water producing device capable of generating the electrolyzed water in large amount. SOLUTION: The electrolytic water forming device is provided with an electrolytic cell 10 in which an introducing port 12 of raw water and discharging port 14 of the electrolytic water are formed, a diaphragm 20 dividing an inside of the electrolytic cell 10 into a main electrolytic chamber 16 in which the introducing port 12 and the discharging port 14 are formed and an electrolyte charging chamber 18 to which an electrolyte soln. is charged, and at least one pair of electrode plates 32 and 34 provided respectively at the main electrolytic chamber 16 and the electrolyte charging chamber 18 across the diaphragm 20 are provided.

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 generating electrolyzed water for sterilization, electrolyzed water for cleaning, and other electrolyzed water, and more particularly to an electrolyzed water generation apparatus having a large amount of electrolyzed water generated per unit time. Related to the device.

[0002]

2. Description of the Related Art Sterilization and cleaning of clothing, tableware, medical equipment, and the like have been conventionally performed using chemicals and cleaning agents. However, chemical or physical damage to objects to be cleaned is large, and wastewater is wastewater. Because of the problem with the treatment, the applicant of the present application has previously proposed the use of electrolytic water as a sterilizing and cleaning solution. This utilizes a protein removing action of alkaline electrolyzed water obtained by electrolyzing water and a bactericidal action of acidic electrolyzed water, and has recently attracted attention as an alternative to chemicals and detergents. As an electrolyzed water generating apparatus for generating this type of electrolyzed water, a water-flow type or a batch type is conventionally known.

[0003]

However, when a conventional electrolyzed water generating apparatus is used to generate, for example, acidic electrolyzed water having a pH of 5 to 7 or alkaline electrolyzed water having a pH of 7 to 10, a high electrolysis water is required. Even if a water flow type is used, the limit is about 1 liter / minute. The main reason for this is that even when only acidic electrolyzed water is required, the same amount of alkaline electrolyzed water as raw electrolyzed water is generated, and the production capacity is substantially reduced by half. Was the cause.

However, since the electrolytic capacity is correlated with the size of the electrode plate and the electric power, if an electrolytic water generating apparatus having a large electrolytic cell or an electrolytic water generating apparatus capable of flowing a large amount of current is used, the electrolysis capacity becomes large. The corresponding generation ability can be demonstrated. However, when using, for example, acidic electrolyzed water or alkaline electrolyzed water for washing, there is a problem that using an electrolyzed water generation apparatus having a large size or large power consumption is not practical, such as installation space or power cost. .

[0005] When an electrolyte such as sodium chloride is added to raw water, the electrolytic capacity is increased. However, adding an appropriate electrolyte to raw water having a large flow rate of 5 liter / min or more is not a problem of labor and time. In addition, a large amount of electrolyte is required, and there is a problem in cost as a substitute for detergents and chemicals.

[0006] The present invention has been made in view of such problems of the prior art, and has as its object to provide an electrolyzed water generating apparatus capable of generating a large amount of electrolyzed water.

[0007]

Means for Solving the Problems The present inventors have made intensive studies on the addition of an electrolyte in order to produce a large amount of electrolyzed water having the desired properties. First, FIG.
As shown in the figure, the batch-type electrolytic cell 10 is divided into two equal parts by a diaphragm 20, a 0.1% electrolyte solution is added to one chamber 18 by adding salt as an electrolyte, and only water is added to the other chamber 16. I put it. In this state, a voltage is applied to the electrode plates 32 and 34,
The pH of the water in the other chamber 16 and the oxidation-reduction potential (hereinafter, also referred to as ORP) with respect to the electrolysis time were measured. The same electrolysis was performed by reversing the polarity of the voltage applied to the electrode plates 32 and 34. As a comparative example, as shown in FIG. 7B, 0.1% saline was put into both chambers 16 and 18 and the same electrolysis was performed. The same electrolysis was performed by reversing the polarity of the voltage applied to the electrode plates 32 and 34.

As a result, as shown in FIGS. 1C and 1D, when the electrolyte solution is filled only in one of the chambers 18, when the electrolyte solution is filled in both the chambers 16, 18. In comparison, in the alkaline electrolyzed water, although the rise of pH was almost the same (see the part a in FIG. 16C), the rise of the oxidation-reduction potential was faster (see the part B in FIG. 16D). In addition, in the acidic electrolyzed water, the rise of the pH (see C in FIG. 16 (C)) and the rise of the oxidation-reduction potential were almost the same (see D in FIG. 16 (D)). From this result, when alkaline electrolyzed water of the same pH is generated, it is possible to generate electrolyzed water having a strong reducing power in a short time, in other words, to produce alkaline electrolyzed water having a strong reducing power in the same time. It has been found that large quantities can be produced. It was also found that when acidic electrolyzed water is generated, electrolyzed water having substantially the same pH and ORP is generated in the same electrolysis time.

This can be inferred as follows. That is, one chamber 18 partitioned by the diaphragm 20
Is supplied to the other chamber 16 and raw water is supplied to the other chamber 16. When a voltage is applied to the electrode plates 32 and 34 in this state, a cation or an anion ionized in the electrolyte solution of the one chamber 18 is supplied. Of these, only ions having a polarity opposite to the polarity of the electrode plate 32 provided in the other chamber 16 pass through the diaphragm 20 and are electrically sucked from one chamber 18 to the other chamber 16 and moved. On the other hand, since the raw water supplied to the other chamber 16 contains almost no electrolyte, it can be said that the amount of ions moving from the other chamber 16 to the one chamber 18 is extremely small.

In addition to the electric attraction force, for example, according to the diffusion theory, electrolyte ions try to make the ion concentration uniform by diffusion, and according to the Donnan equilibrium theory, the ion concentration in both chambers is increased through the diaphragm. Equilibrate to be equal. Also, from the point of view of the osmotic pressure, the electrolyte concentrations in both chambers tend to be equal.

Accordingly, one chamber 18 is connected to the other chamber 1
6, the electrolyte ions can move immediately without colliding, and as a result, the current flowing between the two electrode plates 32 and 34 increases. Water can be obtained in a short time.

Based on the basic study, the electrolyzed water generating apparatus of the present invention comprises an electrolytic cell having an inlet for raw water and an outlet for electrolyzed water formed therein. A main electrolytic chamber in which an outlet is formed, a diaphragm partitioning into an electrolyte charging chamber into which an electrolyte solution is charged, and at least one pair of electrodes provided in each of the main electrolytic chamber and the electrolyte charging chamber with the diaphragm interposed therebetween And a plate.

[0013] In the electrolyzed water generating apparatus of the present invention, the inside of the electrolytic cell is divided into a main electrolytic chamber and an electrolyte charging chamber by the diaphragm.
Raw water is supplied to the main electrolysis chamber.

Here, when a voltage is applied to the pair of electrode plates, electrolysis is performed in each of the main electrolysis chamber and the electrolyte charging chamber. When the electrode plate provided in the main electrolysis chamber is a cathode, the electrolysis is performed. The alkaline electrolyzed water is generated in the main electrolysis chamber, and for a reason described above, the alkaline electrolyzed water having a strong reducing power can be generated in a short time. Further, when the electrode plate provided in the main electrolysis chamber is an anode, acidic electrolyzed water is generated in the main electrolysis chamber, and for the above-described reason, acidic electrolyzed water having substantially the same pH and ORP as the conventional electrolyzed water is generated. be able to.

When the electrolyte is sodium chloride, in a chamber provided with an anode electrode plate,

Embedded image 2Cl ⁻ → Cl ₂ ↑ + 2e ⁻ Cl ₂ + H ₂ O → HCl + HClO (1) The reaction 2H ₂ O → O ₂ ↑ + 4H ⁺ + 4e ⁻ occurs to generate acidic electrolyzed water. In the room where the cathode electrode plate is provided,

Embedded image 2H ₂ O + 2e ⁻ → H ₂ ↑ + 2OH ⁻ Na ⁺ + e ⁻ → Na (2) The reaction 2Na + 2H ₂ O → 2NaOH + H ₂生 じ occurs to generate alkaline electrolyzed water.

According to a second aspect of the present invention, there is provided an electrolyzed water generating apparatus according to the second aspect of the present invention, which assists electrolysis between the electrolyte charging chamber and an electrode plate provided in the electrolyte charging chamber. An electrode plate is provided.

In the apparatus for producing electrolyzed water according to the first aspect,
In the electrolyte charging chamber, when the electrode plate provided in the electrolyte charging chamber is an anode (when the electrolyte is sodium chloride), the above-mentioned reaction (1) occurs. ), The concentration (HCl in the case of the anode, HCl,
HClO, such H ^+, in the case of cathode Na ^+, etc. NaOH) is high.

However, in the electrolyzed water generator according to the second aspect, since the auxiliary electrode plate is provided in the electrolyte charging chamber, electrolysis for regeneration can be performed in the electrolyte charging chamber.

More specifically, the case where alkaline electrolyzed water is generated in the main electrolysis chamber will be described. First, a cathode is provided on an electrode plate provided in the main electrolysis chamber, and a cathode is provided on an electrode plate of an electrolyte charging chamber which forms a pair with the electrode plate. Is applied to the anode, and the cathode is applied to the auxiliary electrode plate.

Here, the timing of performing the electrolysis for regeneration may be during the main electrolysis or between the main electrolysis and the next main electrolysis. In the former case, the pH of the aqueous solution in the electrolyte charging chamber is adjusted to pH = 7.
About, ORP = + 330mV, dissolved chlorine concentration = 0p
pm, and the latter case is strongly oxidized by main electrolysis, so that pH = about 1.5 to 2 and ORP = + 1100.
mV or more, and dissolved chlorine concentration = several hundred ppm or more.

In the former case, ie, when regenerative electrolysis is performed during main electrolysis, H ⁺ (actually existing in the form of H ₃ O ⁺ ) generated at the anode electrode plate in the electrolyte charging chamber is sucked into the auxiliary electrode plate, In the vicinity of the auxiliary electrode plate,

Embedded image 2H ⁺ + 2e ⁻ → H ₂ … (3) As a result, the hydrogen ions in the electrolyte charging chamber become hydrogen gas and are discarded to the outside, so that the hydrogen ion concentration decreases and the pH is prevented from lowering. Also, H ₂ O and Na ⁺ in the electrolyte charging chamber receive electrons from the auxiliary electrode plate,

Embedded image Na ⁺ + e ⁻ → Na (this reaction mainly occurs in the Helmholtz layer) 2Na + 2H ₂ O → 2NaOH + H ₂ ↑ (this reaction mainly occurs in the Guichapman layer) (4) The hydroxide ion OH ⁻ (actually, H ₃ O ₂ ⁻ ) of NaOH of the second formula neutralizes H ⁺ (H ₃ O ⁺ ) generated on the anode electrode plate, thereby also suppressing a decrease in pH. Is done.

On the other hand, in the latter case, that is, when regenerative electrolysis is performed after the main electrolysis, the pH in the electrolyte charging chamber is lowered to about 1.5 to 2 by the main electrolysis, and the ORP and the dissolved chlorine concentration also increase. I have. Here, since the abundance ratio of residual free chlorine such as chlorine Cl ₂ and chlorine compounds HClO and OCl ⁻ depends on pH as shown in FIG. 17, if the solution in the electrolyte charging chamber is set to a neutral region, Chlorine gas decreases and chlorine compound HClO increases.

First, the reactions (3) and (4) occur near the auxiliary electrode plate. Then, the hydrogen ions in the electrolyte charging chamber are converted into hydrogen gas and discarded outside by the reaction of the formula (3), so that the hydrogen ion concentration decreases and the pH increases. Further, by the reaction of the formula (4), hydroxide ion OH ⁻ (actually, H ₃ O ₂ ⁻ ) of NaOH neutralizes H ⁺ (H ₃ O ⁺ ) generated on the anode electrode plate. Also pH
Increase. Furthermore, in the anode electrode plate of the electrolyte charging chamber,
As shown in the above (1), part of the chlorine gas Cl ₂ is discarded to the outside, so that even if the remaining chlorine gas dissolves and hydrolyzes to generate HCl and HClO, it is neutralized therewith. The number of moles of the reacting NaOH is increased by the number of moles of chlorine gas discarded as gas. Therefore, even if initially a strong acid and a high residual chlorine concentration, O
The increase in H ⁻ leads to the approach of the neutralization region.

In order to achieve the above object, the electrolyzed water generating apparatus according to the third aspect of the present invention is characterized by further comprising gas processing means for processing gas generated in the electrolyte charging chamber. Although the solution in the electrolyte charging chamber can be regenerated by using the auxiliary electrode plate according to the second aspect, most of the gas that has become gas cannot be regenerated. However, since the electrolyzed water generating apparatus according to the third aspect has the gas processing means, it is possible to directly process chlorine gas and hydrogen gas generated in the electrolyte charging chamber during electrolysis, thereby preventing generation of offensive odor. The explosion-proof means can be omitted at the same time.

The gas treatment means in the present invention is not particularly limited, but includes an adsorption treatment with activated carbon, a treatment with an ozone generator, a treatment with protein, a treatment with a deodorant obtained by adding ferrous iron ions to a silicate mineral, and the like. Examples can be given.

A deodorant obtained by adding ferrous iron ions to a silicate mineral is synthesized from, for example, silica, alumina, a ferrous iron salt and other metal oxides, and has a tetrahedral layer of silica and an octane mainly composed of metal. It is a porous material having a two-layer structure in which face layers are alternately bonded, and has a structure in which one particle has an acidic surface and a basic surface. This deodorant exhibits a deodorizing performance by a physical adsorption action by pores of 10 to 50 angstroms and a chemical adsorption action by both surfaces of a silica layer and a metal layer.

In the electrolyzed water generating apparatus according to any one of claims 1 to 3, the configuration of the pair of electrode plates is not particularly limited, and various conductors such as a flat plate and a round bar can be used. The electrolyzed water generation device is characterized in that the other electrode plate provided in the main electrolysis chamber is formed in a porous shape. Acceleration of reaction due to increase in electrode plate surface area,
The promotion of the reaction by the edge effect of the pore periphery and the promotion of the reaction by the improvement of the permeability of the raw water are achieved, and the target electrolyzed water can be generated more quickly. In the electrolyzed water generation device of the present invention, the electrode plate is porous, the specific shape is not particularly limited, but a plate having a large number of small holes formed,
Examples include a shape such as a punching metal, a shape obtained by cutting and raising a flat plate, and the like.

Further, in the electrolyzed water generating apparatus of the present invention,
In addition to making the electrode plate provided in the main electrolytic chamber porous,
As in the electrolyzed water generating apparatus according to the fifth aspect, the electrolyzed water generating apparatus can be formed in a surface irregular shape. The surface irregularities referred to herein include not only those having a flat plate surface formed into an uneven shape but also those having a large number of needle-like projections standing on the flat plate surface. By doing so, the surface area of the electrode plate is increased, so that the reaction is promoted, and the reaction is also promoted by the edge effect of the tip of the unevenness.

Further, the electrolyzed water generating apparatus according to claim 6 is characterized in that the electrode plate is flat. Furthermore, the electrolyzed water generating apparatus according to claim 7, wherein the electrode plate provided in the main electrolysis chamber is rod-shaped or cylindrical, and the electrode plate provided in the electrolyte charging chamber is cylindrical. Features. The configuration of the electrode plate can be diversified according to the application, and as a result, the shape and structure of the electrolyzed water generator become appropriate.
It can be configured with a degree of freedom.

In order to achieve the above object, an electrolyzed water generating apparatus according to claim 8 includes an electrolyzed water generating apparatus according to any one of claims 1 to 7, an electrode plate of the electrolyzed water generating apparatus, and the auxiliary. A power supply circuit for applying a voltage to the electrode plate, a polarity conversion circuit for switching a voltage polarity applied from the power supply circuit to the electrode plate and the auxiliary electrode plate, and a control circuit for controlling the power supply circuit and the polarity conversion circuit. , Is characterized by having. The apparatus for generating electrolyzed water according to claims 1 to 7 can be configured as a system.

The above-described electrolyzed water generator of the present invention includes an electrolyzed water generator for drinking, an electrolyzed water generator for facial cleansing, a washing machine for home or business use, a washing machine for medical tools, a dishwasher, a hand washing disinfectant, It can be applied to a wide range of fields such as medical field, food field, agriculture field, industrial field, etc. it can. In addition, the electrolyzed water generation apparatus of the present invention is not limited to the water-flow type, but can be used as a batch type. In this case, if the diaphragm is constituted by an ion exchange membrane, specific ions from the electrolyte charging chamber can be selectively contained in the electrolytic water generated in the main electrolytic chamber.

[0032]

As described above, according to the apparatus for producing electrolyzed water of the present invention, a large amount of electrolyzed water having desired characteristics can be produced in a short time.

[0033]

Embodiments of the present invention will be described below with reference to the drawings. The embodiments described below are:
It is described for the purpose of facilitating the understanding of the present invention, and is not intended to limit the present invention.
Therefore, each element disclosed in the following embodiments is intended to include all design changes and equivalents belonging to the technical scope of the present invention.

First Embodiment FIG. 1 is a longitudinal sectional view showing a first embodiment of the present invention, and shows a basic structure of an electrolyzed water generating apparatus of the present invention.
In the electrolyzed water generating apparatus of the present embodiment, the electrolytic cell 10
, One of the chambers serves as an electrolyte charging chamber 18 into which an electrolyte solution is charged, and the other chamber serves as a main electrolysis chamber 16 for producing target electrolytic water. The main electrolytic chamber 16 has an inlet 12 for introducing raw water and the main electrolytic chamber 1.
An outlet 14 for taking out the electrolyzed water generated in Step 6 is formed. Further, with the diaphragm 20 interposed, the main electrolysis chamber 1
6 and the electrolyte charging chamber 18 each have a pair of electrode plates 3.
2, 34 are provided such that their main surfaces face each other.
A DC power supply 40 is connected to the pair of electrode plates 32 and 34 so that an anode is applied to one of the electrode plates and a cathode is applied to the other electrode plate. For example, when generating alkaline electrolyzed water in the main electrolysis chamber 16,
The cathode of the DC power supply 40 is connected to the electrode plate 32 and the electrode plate 3
4 is connected to the anode. Conversely, when generating acidic electrolyzed water in the main electrolysis chamber 16, the anode of the DC power supply 40 is connected to the electrode plate 32, and the cathode is connected to the electrode plate 34. As the electrolyte to be charged into the electrolyte charging chamber 18, a substance having a large degree of dissociation, such as sodium chloride, potassium chloride, or calcium chloride, is preferable.

When alkaline electrolyzed water is generated using such an electrolyzed water generation apparatus, first, the electrolyte charging chamber 1
8 was filled with an electrolyte solution, the cathode of the DC power supply 40 was connected to the electrode plate 32, and the anode was connected to the electrode plate 34;
A voltage is applied to both electrode plates 32,34. When water such as tap water is introduced from the inlet 12, tap water is electrolyzed in the main electrolytic chamber 16, and on the surface of the electrode plate 32 and in the vicinity thereof,

Embedded image Reaction occurs as follows: 2H ₂ O + 2e ⁻ → H ₂ ↑ + 2OH ⁻ Na ⁺ + e ⁻ → Na 2Na + 2H ₂ O → 2NaOH + H ₂ ↑ Here, Na ⁺ is in the electrolyte charging chamber 1
The sodium ions dissociated in 8 pass through the diaphragm 20 and are sucked into the electrode plate 32. In this way, in the main electrolysis chamber 16, alkaline electrolyzed water containing hydroxyl ions is generated and supplied from the outlet 14 to a target washing machine or the like.

The apparatus for generating electrolyzed water according to the present embodiment can also be applied to the case where acid electrolyzed water is generated. In this case, first, the electrolyte charging chamber 18 is filled with an electrolyte solution, and the anode of the DC power supply 40 is connected to the electrode. Connected to the plate 32, the cathode is connected to the electrode plate 34, and a voltage is applied to both the electrode plates 32, 34.

When water such as tap water is introduced from the inlet 12, tap water is electrolyzed in the main electrolytic chamber 16, and on the surface of the electrode plate 32 and in the vicinity thereof,

## STR00006 ## The reaction of 2Cl ⁻ → Cl ₂ ↑ + 2e ⁻ Cl ₂ + H ₂ O → HCl + HClO 2H ₂ O → O ₂ ↑ + 4H ⁺ + 4e ⁻ occurs. In this way, acidic electrolyzed water containing hydrogen ions is generated in the main electrolysis chamber 16 and the outlet 14
From the target washing machine.

Second Embodiment FIG. 2 is a longitudinal sectional view showing a second embodiment of an electrolyzed water generating apparatus according to the present invention, wherein members common to those in the above-described first embodiment are denoted by the same reference numerals. I have. In the present embodiment, the first point is that the auxiliary electrode plate 50 is provided in the electrolyte charging chamber 18.
This is different from the embodiment. The auxiliary electrode plate 50 is provided on the opposite side of the electrode plate 32 with the electrode plate 34 interposed therebetween.
A DC power supply 42 is connected to the electrode plate 34. Thus, when a DC voltage is applied between the auxiliary electrode plate 50 and the electrode plate 34, electrolysis is performed in the electrolyte charging chamber 18.

For example, when alkaline electrolyzed water is generated in the main electrolysis chamber 16, the concentration of HCl or HClO in the electrolyte solution in the electrolyte charging chamber 18 increases, as is apparent from the above-mentioned reaction formula. The reaction in the electrolytic chamber 16 is also suppressed. Therefore, the electrolyte solution in the electrolyte charging chamber 18 is electrolyzed using the auxiliary electrode plate 50 of the present embodiment. By doing so, the above-mentioned regeneration reactions (3) and (4) occur on the surface of the auxiliary electrode plate 50 connected to the cathode and in the vicinity thereof. Suppression of the reaction can be prevented.

When the acidic electrolyzed water is generated in the main electrolysis chamber 16, the concentration of Na or NaOH in the electrolyte solution in the electrolyte charging chamber 18 increases as is apparent from the above-mentioned reaction formula. Also, the reaction in the main electrolysis chamber 16 is suppressed. However, when the electrolytic solution in the electrolyte introduction chamber 18 is electrolyzed using the auxiliary electrode plate 50 of the present embodiment, a regeneration reaction occurs on the surface of the auxiliary electrode plate 50 connected to the cathode and in the vicinity thereof. Suppression of the reaction in the main electrolysis chamber 16 during electrolysis can be prevented.

The regeneration operation using the auxiliary electrode plate 50 can be performed during the generation of the electrolyzed water in the main electrolytic chamber 16 or during the stop. Performing regeneration electrolysis during the main electrolysis is preferable in that the time required for regeneration can be omitted. In addition, it is preferable to perform regeneration electrolysis while the main electrolysis is stopped, since a small current is sufficient.

Third Embodiment FIG. 3 is a longitudinal sectional view showing a third embodiment of the electrolyzed water generating apparatus according to the present invention, wherein members common to the first embodiment described above are denoted by the same reference numerals. I have. The present embodiment is different from the first embodiment in that a gas disposal port 62 is opened on the upper surface of the electrolyte charging chamber 18 and a gas processing means 60 is provided here. Examples of the gas processing means 60 include activated carbon, an ozone generator, a protein, and a deodorant.

According to the electrolyzed water generating apparatus of the present embodiment, the gas generated in the electrolyte charging chamber 18 can be efficiently discarded to the outside, and chlorine gas with an odor or hydrogen gas which needs explosion proof can be treated. it can.

Fourth Embodiment FIG. 4 is a longitudinal sectional view showing a fourth embodiment of the electrolyzed water generating apparatus according to the present invention, wherein members common to the first embodiment described above are denoted by the same reference numerals. I have. This embodiment differs from the first embodiment in that the electrode plate 32 provided in the main electrolysis chamber 16 is formed in a porous shape. The term “porous” includes, for example, a mesh-like material in addition to a material in which many micropores are formed. Note that, in addition to the porous shape, a multi-needle shape in which a large number of needles are provided on a flat plate surface can also be used. The electrode plate 32 is made porous first because the electrode plate 32
The second is to promote the reaction by increasing the surface area of the electrode, the second is to promote the reaction by the edge effect of the periphery of the hole, and the third is to improve the transmissibility of the electrode plate 32 between the front and back sides. It is to promote.
In that sense, the specific shape of the porous electrode plate 32 is not limited.

Fifth Embodiment FIG. 5 is a longitudinal sectional view showing a fifth embodiment of the electrolyzed water generating apparatus of the present invention, and FIG. 6 is a partially cutaway perspective view which is the same as the first embodiment described above. Members are given the same reference numerals.

The electrolyzed water generating apparatus of this embodiment is provided with an electrolyte charging chamber 18 on both sides of the main electrolysis chamber 16. In addition, a gas disposal port 62 for discarding chlorine gas or hydrogen gas generated in the electrolyte introduction chamber 18 is opened on the upper surface of the electrolyte introduction chamber 18, and the gas processing means 60 described above is provided. I have. Further, the electrolyte charging chamber 1
An electrolyte solution introduction port 72 for introducing an electrolyte solution is formed on the upper surface of 8, and a solution containing an electrolyte is introduced from the electrolyte solution tank 70 into the electrolyte introduction chamber 18. In addition, an electrolyte solution disposal port 17 is provided on the bottom surface of the electrolyte introduction chamber 18, and a valve 19 is provided. The valve 19 is opened when the electrolyte solution is renewed.

The main electrolysis chamber 16 is provided with the porous electrode plate 32 described in the fourth embodiment, and electrode plates 34 are provided on both sides of the diaphragm 20. These electrode plates 3
A DC voltage is applied to DC power supplies 40, 40 by DC power supplies 40, 40. When alkaline electrolyzed water is generated in main electrolysis chamber 16, a negative electrode is provided on electrode plate 32, and an electrode plate 3 is provided.
The anodes are connected to 4, 34, respectively.

The electrolyte charging chamber 18 is provided with the auxiliary electrode plate 50 described in the second embodiment.
A DC power supply 42 is connected between the DC power supply 42 and the eighth electrode plate 34. The electrolyte solution in the electrolyte charging chamber 18 is electrolyzed and regenerated by the auxiliary electrode plate 50.

Sixth Embodiment FIG. 7 is a partially cutaway perspective view showing a sixth embodiment of the electrolyzed water generating apparatus of the present invention, and members common to the fifth embodiment described above are denoted by the same reference numerals. doing. In the fifth embodiment, the electrode plates 32 and 34, the diaphragm 20, and the like are formed in a plate shape. In the present embodiment, the electrode 3 provided in the main electrolysis chamber 16 is formed.
2 is formed in a rod shape, and the diaphragm 20 and the electrode 34 surrounding the
And the auxiliary electrode 50 is formed in a cylindrical shape. As described above, the entire electrolyzed water generation device can be formed in a cylindrical shape. Although not shown, it may be formed in a prismatic shape.

Seventh Embodiment FIG. 8 is a longitudinal sectional view showing a seventh embodiment of the electrolyzed water generating apparatus according to the present invention, wherein members common to those in the fifth embodiment are designated by the same reference numerals. I have. In the present embodiment, main electrolytic chambers 16 are formed on both sides of the electrolyte charging chamber 18. An electrode plate 32 is provided in each of the two main electrolytic chambers 16, while an electrode plate 34 is provided in the electrolyte introduction chamber 18 so as to face the electrode plate 32. Further, an auxiliary electrode plate 50 is provided between these electrode plates 34.
Is provided. A DC power source 40 is connected between the electrode plate 32 and the electrode plate 34, and the electrode plate 34 and the auxiliary electrode plate 50
Is connected to a DC power supply 42.

When alkaline electrolyzed water is generated by using the electrolyzed water generator configured as described above, the two DC power sources 4 are turned off while the two DC power sources 42 are turned off.
According to 0 and 40, a cathode is applied to the electrode plate 32 and an anode is applied to the electrode plate. As a result, the inlet 1
Electrolysis of raw water introduced from 2 is performed and outlet 14
From the alkaline electrolyzed water. Further, acidic electrolyzed water is generated in the electrolyte charging chamber 18, but when the concentration of the acidic electrolyzed water in the electrolyte charging chamber 18 increases, the DC power supply 4
2 and 42 are turned on, and the cathode is
When an anode is applied to the electrodes 4, 34, the electrolyte solution in the electrolyte charging chamber 18 can be regenerated by electrolysis.

Eighth Embodiment FIG. 9 is a longitudinal sectional view showing an eighth embodiment of the electrolyzed water generating apparatus of the present invention, wherein members common to those of the above-described seventh embodiment are denoted by the same reference numerals. I have. In the present embodiment, a plurality of the electrolyzed water generating apparatuses of the above-described seventh embodiment are arranged in parallel,
In the electrolytic cell 10, three main electrolytic chambers 16 and four electrolyte charging chambers 18 are formed. An electrode plate 32 is provided in the main electrolytic chamber 16. In FIG. 9, the electrode plate 34 and the auxiliary electrode plate 50
In FIG. 9, two central electrolyte charging chambers 1 are provided.
8 is provided with two electrode plates 34 and one auxiliary electrode plate 50.

FIG. 9 shows the polarity of the applied voltage when alkaline electrolyzed water is generated using the electrolyzed water generation apparatus of this embodiment configured as described above.
Electrolysis of the raw water introduced from is performed, and alkaline electrolyzed water is led out from the outlet 14. Further, the acidic electrolyzed water is generated in the electrolyte charging chamber 18, but when the concentration of the acidic electrolyzed water in the electrolyte charging chamber 18 increases, the auxiliary electrode plate 5 is formed.
If the cathode is applied to 0 and the anode is applied to the electrode plates 34, 34, the electrolyte solution in the electrolyte charging chamber 18 can be regenerated by electrolysis.

Ninth Embodiment FIG. 10 is a partially cutaway perspective view showing a ninth embodiment of an electrolyzed water generating apparatus according to the present invention, in which members common to the above-described embodiments are denoted by the same reference numerals. I have. In this embodiment,
Two main electrolytic chambers 16 are formed in the electrolytic cell 10 using the U-shaped diaphragm 20, and an electrode plate 32 is provided here. The other part partitioned by the diaphragm 20 becomes the electrolyte introduction chamber 18, and is provided with an electrode plate 34 having an E-shaped cross section and an auxiliary electrode plate 50 facing one main surface of the electrode plate 34. .

When the alkaline electrolyzed water is generated by using the electrolyzed water generating apparatus of this embodiment configured as described above, a cathode is applied to the electrode plate 32 and an anode is applied to the electrode plate 34. As a result, in the main electrolysis chamber 16, the electrolysis of the raw water introduced from the inlet (not shown) formed on the bottom surface of the electrolytic cell 10 in the figure is performed, and the alkaline electrolyzed water is led out from the outlet 14. Is done. Further, acidic electrolyzed water is generated in the electrolyte charging chamber 18, and when the concentration of the acidic electrolyzed water in the electrolyte charging chamber 18 increases, if a cathode is applied to the auxiliary electrode plate 50 and an anode is applied to the electrode plate 34, The electrolyte solution in the electrolyte charging chamber 18 can be regenerated by electrolysis.

Tenth Embodiment In the first to ninth embodiments, only specific examples of the electrolyzed water generation device of the present invention have been described. However, the electrolyzed water generation device of the present invention is not limited to a washing machine, a disinfecting machine, or a dishwasher. It can be widely applied to various washing devices such as machines.

FIG. 11 is a block diagram showing a first embodiment of a cleaning system using the electrolyzed water generating apparatus according to the present invention.
00 is an embodiment incorporating the same. That is, this cleaning system is provided with the above-described electrolyzed water generating apparatus 100 of the present invention.
And an electrode plate 32 provided in the electrolyzed water generating apparatus 100.
And a power supply circuit 81 for applying a DC voltage V2 to the electrode plate 34 and the auxiliary electrode plate 50, respectively.
And a polarity conversion circuit 82 for converting the applied voltage polarity as necessary, and a solenoid valve S provided in a power supply circuit 81 and a raw water supply pipe 84 based on a command signal from the cleaning device 90.
And a control circuit 83 for controlling V1.

FIG. 12 is a flowchart showing the control procedure of the cleaning system. When the water supply signal FL1 from the cleaning device 90 is sent to the control circuit 83 in step 10, the electrode is turned on if necessary in step 11. The polarity of the voltage applied to the plates 32 and 34 and the auxiliary electrode plate 50 is converted. Next, in Step 12, the DC voltage V1 is applied to the electrode plates 32 and 34, and in Step 13, the electrode plate 3
4 and the DC voltage V2 to the auxiliary electrode plate 50 are applied.
Then, in step 14, the electromagnetic valve SV1 of the raw water supply pipe 84 is opened, and the raw water is introduced into the main electrolytic chamber 16, whereby the raw water is electrolyzed in the main electrolytic chamber 16, and the raw water is washed from the outlet 14. Electrolyzed water is supplied to the device 90. If no water supply signal is sent from the cleaning device 90 in step 10, the DC voltages V1 and V2 are turned off in steps 15 to 17, and the solenoid valve SV1 is closed to stop the supply of raw water.

Eleventh Embodiment FIG. 13 is a block diagram showing a second embodiment of a cleaning system using the electrolyzed water generating apparatus of the present invention. This is an embodiment in which is incorporated. That is, the cleaning device 90 has a supply pipe 85 for supplying raw water.
5 is provided with an electromagnetic valve SV2, and supply and stop of raw water are performed by opening and closing the electromagnetic valve SV2. A supply pipe 84 to which the electromagnetic valve SV1 is attached is provided in parallel with the supply pipe 85. . In addition, the present cleaning system includes the above-described electrolyzed water generator 100 of the present invention and a DC voltage V1 applied to the electrode plates 32 and 34 provided in the electrolyzed water generator 100, and a DC voltage applied to the electrode plate 34 and the auxiliary electrode plate 50. A power supply circuit 81 for applying the voltage V2, a polarity conversion circuit 82 for converting the polarity of the applied voltage as necessary,
A control circuit 83 controls a power supply circuit 81 and an electromagnetic valve SV1 provided in a raw water supply pipe 84 based on a command signal from the cleaning device 90. Supply piping 84 and 8
At the junction of No. 5, a check valve 86 for preventing raw water from the supply pipe 85 from returning to the electrolyzed water generator 100, and a flow sensor (or pressure sensor) 87 for measuring a supply flow to the cleaning device 90. Is provided, and the water supply signal FL1 from the flow rate sensor is sent to the control circuit 83.

FIG. 14 is a flowchart showing a control procedure of this cleaning system. When the water supply signal FL1 from the flow rate sensor 87 is sent to the control circuit 83 in step 20, the electromagnetic control of the supply pipe 85 is performed in step 21. The valve SV2 is closed so that all raw water flows to the supply pipe 84. Next, in step 22, the electrode plates 32 and 34 are
And the polarity of the voltage applied to the auxiliary electrode plate 50 is converted. In step 23, the DC voltage V1 is applied to the electrode plates 32 and 34. In step 24, the DC voltage applied to the electrode plate 34 and the auxiliary electrode plate 50 is changed. V2 is applied. And
In step 25, the electromagnetic valve SV1 of the raw water supply pipe 84 is opened, and the raw water is introduced into the main electrolytic chamber 16, whereby the raw water is electrolyzed in the main electrolytic chamber 16 and the outlet 14
The electrolyzed water is supplied to the cleaning device 90 from. If the water supply signal from the flow rate sensor 87 is not transmitted in step 20, the solenoid valve S of the supply pipe 85 is determined in step 26.
V2 is opened, and the DC voltages V1 and V2 are turned off in steps 27 to 29, and the solenoid valve SV1 is closed to control so that all the raw water flows to the supply pipe 85.

Twelfth Embodiment FIG. 15 is a block diagram showing a cleaning system using an electrolyzed water generating apparatus according to a third embodiment of the present invention.
Are used to supply DC voltages V1 and V2 to the electrode plates 32 and 34 and the auxiliary electrode plate. That is, this cleaning system applies the DC voltage V1 to the above-described electrolyzed water generator 100 of the present invention and the electrode plates 32 and 34 provided in the electrolyzed water generator 100, and applies the DC voltage V1 to the electrode plate 34 and the auxiliary electrode plate 50. The power supply circuit 81 includes a power supply circuit 81 for applying the voltage V2, a polarity conversion circuit 82 for converting the polarity of the applied voltage as necessary, and a power generator 88 provided on a raw water supply pipe 84. The power generated by the generator 88 is supplied to the power supply circuit 81, and the DC voltage V1
And V2.

According to this cleaning system, the generator is operated using the supplied energy of the raw water, and the electric power is used to perform the electrolysis, so that the energy is significantly saved. In the above-mentioned cleaning system, it is also possible to manually introduce raw water. Further, it is also possible to generate the electrolytic water only by various ions necessarily contained in the tap water without supplying a specific electrolyte such as sodium chloride to the electrolyte charging chamber 18. Also in this case, the oxidation-reduction potential value (for example, -60
0 mV) was produced.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a first embodiment of an electrolyzed water generating apparatus of the present invention.

FIG. 2 is a longitudinal sectional view showing a second embodiment of the electrolyzed water generation device of the present invention.

FIG. 3 is a longitudinal sectional view showing a third embodiment of the electrolyzed water generation device of the present invention.

FIG. 4 is a longitudinal sectional view showing a fourth embodiment of the electrolyzed water generation device of the present invention.

FIG. 5 is a longitudinal sectional view showing a fifth embodiment of the electrolyzed water generation device of the present invention.

FIG. 6 is a partially cutaway perspective view showing an electrolyzed water generating apparatus according to a fifth embodiment.

FIG. 7 is a longitudinal sectional view showing a sixth embodiment of the electrolyzed water generation device of the present invention.

FIG. 8 is a longitudinal sectional view showing a seventh embodiment of the electrolyzed water generation device of the present invention.

FIG. 9 is a longitudinal sectional view showing an eighth embodiment of the electrolyzed water generation device of the present invention.

FIG. 10 is a partially cutaway perspective view showing a ninth embodiment of the electrolyzed water generation device of the present invention.

FIG. 11 is a block diagram showing a first embodiment of a cleaning system using the electrolyzed water generation device of the present invention.

12 is a flowchart showing a control procedure of the system shown in FIG.

FIG. 13 is a block diagram showing a second embodiment of a cleaning system using the electrolyzed water generation device of the present invention.

14 is a flowchart showing a control procedure of the system shown in FIG.

FIG. 15 is a block diagram showing a third embodiment of a system using the electrolyzed water generation device of the present invention.

FIG. 16 is a longitudinal sectional view and a graph for explaining the basic principle of the electrolyzed water generation device of the present invention.

FIG. 17 is a graph showing the ratio of the residual free chlorine concentration to the pH.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Electrolysis tank 12 ... Inlet 14 ... Outlet 16 ... Main electrolysis chamber 17 ... Electrolyte solution disposal port 18 ... Electrolyte charging chamber 19 ... Valve 20 ... Diaphragm 32,34 ... Electrode plate 40,42 ... Power supply 50 ... Auxiliary electrode plate Reference numeral 60: gas treatment means 62: gas disposal port 70: electrolyte solution tank 72: electrolyte solution introduction port

Claims (12)

[Claims] An electrolytic cell in which an inlet for raw water and an outlet for electrolytic water are formed; a main electrolytic chamber in which the inlet and outlet are formed; An electrolyzed water generating apparatus, comprising: a diaphragm partitioning into an electrolyte charging chamber; and at least a pair of electrode plates provided in each of the main electrolysis chamber and the electrolyte charging chamber with the diaphragm interposed therebetween. 2. The electrolytic water generation according to claim 1, wherein an auxiliary electrode plate for performing electrolysis between the electrolyte charging chamber and an electrode plate provided in the electrolyte charging chamber is provided in the electrolyte charging chamber. apparatus. 3. The apparatus for producing electrolyzed water according to claim 1, further comprising gas treatment means for treating gas generated in the electrolyte charging chamber. 4. The electrolyzed water generator according to claim 1, wherein the electrode plate provided in the main electrolysis chamber is formed in a porous shape. 5. An electrode plate provided in the main electrolysis chamber is formed with a surface irregularity.
3. The electrolyzed water generator according to any one of 3. 6. The apparatus for producing electrolyzed water according to claim 1, wherein the electrode plate has a flat plate shape. 7. The electrode plate provided in one of the main electrolysis chamber and the electrolyte charging chamber is rod-shaped or cylindrical, and the electrode plate provided in the other is cylindrical. The electrolyzed water generator according to any one of claims 1 to 5. 8. The electrolyzed water generator according to claim 1, a power supply circuit for applying a voltage to an electrode plate and an auxiliary electrode plate of the electrolyzed water generator, and the electrode from the power supply circuit. An electrolyzed water generating apparatus comprising: a polarity conversion circuit that switches a voltage polarity applied to a plate and the auxiliary electrode plate; and a control circuit that controls the power supply circuit and the polarity conversion circuit. 9. A washing machine comprising the electrolyzed water generating apparatus according to claim 1. 10. A sterilizer for cleaning and disinfecting, comprising the electrolyzed water generator according to claim 1. 11. A dishwasher comprising the electrolyzed water generator according to claim 1. Description: 12. A degreasing washing machine comprising the electrolyzed water generating apparatus according to claim 1.