JPH08229565A - Electrolyzed water producing device - Google Patents

Abstract

PURPOSE: To provide an electrolyzed water producing device capable of simultaneously producing three kinds of water of acidic water containing hypochlorous acid, neutral water containing hypochlorous acid or being low in oxydation- reduction potential, and alkaline ionized water. CONSTITUTION: Electrodes are respectively arranged in a first and second rooms 14a, 14b positioned at both side parts formed by partioning the inside of a bath 11 with a negative ion exchange membrane 12a and a positive ion exchange membrane 12b and in a third room 14c positioned between both these rooms, and the inside of the third room 14c is constituted as an electrolytic bath. Besides, the third room 14c and the first room 14a are constituted as electrodialysis baths partioned with the negative ion exchange membrane 12a, and the third room 14c and the second room 14b are constituted as electrodialysis baths partioned with the positive ion exchange membrane 12b.

Description

Detailed Description of the Invention

[0001]

The present invention relates to electrolyzed water for simultaneously producing acidic water containing hypochlorous acid, neutral water containing hypochlorous acid or neutral water having a low redox potential, and alkaline water. It relates to a generator.

[0002]

2. Description of the Related Art As one type of electrolyzed water producing apparatus for producing electrolyzed water, as shown in Japanese Patent Publication No. 4-42077, the inside of an electrolytic cell is partitioned by a diaphragm having ion permeability. Electrodes are arranged in a pair of compartments formed by forming an anode chamber and a cathode chamber, respectively, and an electrolyzed water generator for electrolyzing dilute saline solution supplied to these chambers between these anodes and cathodes is provided. is there. In the electrolyzed water generator, acidic water containing hypochlorous acid is generated in the anode chamber, and alkaline water is generated in the cathode chamber. Further, the above-mentioned acidic water may be adjusted to neutral water thereafter depending on the purpose of use.

[0003]

By the way, these electrolytically generated waters have different uses depending on their characteristics. That is, acidic water containing hypochlorous acid is used as water for sterilizing and cleaning instruments, alkaline water is used as water for contaminated cleaning of instruments, and neutral water is used as water for sterilizing and cleaning food materials or food processing. Therefore, in one electrolyzed water generator,
It is desirable to be able to simultaneously generate these three types of electrolyzed water, but it is not possible with a conventional electrolyzed water generator. Therefore, an object of the present invention is to provide an electrolyzed water production apparatus capable of producing the above-mentioned acidic water, neutral water, and alkaline water at the same time.

[0004]

DISCLOSURE OF THE INVENTION The present invention is directed to first and second chambers located on each side formed by partitioning the interior of a tank with a pair of diaphragms having ion permeability, and between these chambers. Is an electrolyzed water generator for disposing electrolyzed dilute saline to electrolyze dilute saline by arranging electrodes in the third chamber located at, respectively.
It is characterized in that one of the three chambers or between the two chambers adjacent to each other is configured as an electrolysis cell, and the space between the chamber adjacent to the same electrolysis cell is configured as an electrodialysis cell.

In the electrolyzed water producing apparatus, the third
The inside of the chamber is configured as an electrolysis tank, and the space between the first chamber and the third chamber and between the second chamber and the third chamber is configured as an electrodialysis tank, and the space between the third chamber and the first chamber. Can be configured as an electrolysis tank, and an area between the second chamber and the third chamber can be configured as an electrodialysis tank.

[0006]

In the electrolyzed water producing apparatus according to the present invention, when the electrolyzer is composed of one chamber and two electrodialyzers are formed on both sides of the electrolyzer, the electrolyzer is provided. Components such as hypochlorous acid, sodium ions, chlorine ions, and hypochlorite ions are generated in the interior, and the cation component of each of these ionic components is used as electricity in the room that constitutes one electrodialysis cell. While being dialyzed and invaded, the anion component is electrodialyzed and invaded into the chamber constituting the other electrodialysis tank. Therefore, almost neutral neutral water containing hypochlorous acid is obtained in the room that constitutes the electrolytic cell, alkaline water is obtained in the room where the cation component has entered, and in the room where the anion component has entered Acidic water containing hypochlorous acid is obtained. That is, according to the electrolyzed water generator,
Acidic water, neutral water, and alkaline water are produced at the same time.

Further, in the electrolyzed water producing apparatus according to the present invention, when the electrolysis cell is composed of two chambers adjacent to each other and the electrodialysis cell is composed of one chamber on one side of the electrolysis cell, Components such as hypochlorous acid, chlorine ions, and hypochlorite ions are produced in one chamber of the electrolytic cell, and cation components such as sodium ions are produced in the other chamber. In this case, since the other chamber constituting the electrolytic cell constitutes an electrodialysis cell together with the adjacent chamber on one side, the cations generated in the other chamber are electrodialyzed and invade into the adjacent chamber on one side. To do. Therefore, acidic water containing hypochlorous acid is obtained in one of the chambers forming the electrolytic cell, and neutral water of extremely low redox potential is obtained in the other chamber forming the electrolytic cell, and cations are Alkaline water can be obtained in the invaded room. That is, according to the electrolyzed water generator,
Acidic water, neutral water, and alkaline water are produced at the same time.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an electrolyzed water producing apparatus according to a first embodiment of the present invention. The electrolyzed water generator 10 includes a tank body 11, a pair of ion exchange membranes 12a, 12b, and four electrodes 13a, 13b, 13c, 13d. Of the ion exchange membranes 12a and 12b, the first ion exchange membrane 12
a is an anion exchange membrane having a function of selectively permeating anions, and the second ion exchange membrane 12b is a cation exchange membrane having a function of selectively permeating cations. The exchange membranes 12a and 12b are the tank body 11
It is disposed inside and divides the inside into a first chamber 14a, a second chamber 14b on both sides, and an intermediate third chamber 14c.

In each of these chambers, the first electrode 13a is inside the first chamber 14a and the second electrode 13 is inside the second chamber 14b.
b, the third electrode 13c and the fourth electrode 13d are arranged in the third chamber 14c. Of these electrodes, the first and second electrodes 13a and 13b are plate-shaped electrodes, while the third and fourth electrodes 13c and 13d are electrodes having a large number of transmission holes such as lath metal. 13a to 13d are connected to the DC power supply 15. In this DC power supply 15, the first electrode 13a is connected to the anode terminal, the second electrode 13b is connected to the cathode terminal, and the third electrode 1 is connected.
3c and the 4th electrode 13d are connected to each terminal of each intermediate part.

On the other hand, the tank body 11 is connected with supply lines 16a, 16b, 16c of tap water and dilute saline, and also with discharge lines 17a, 17b, 17c. First and second supply pipelines 16 of each supply pipeline
a and 16b are connected to a supply source of tap water, and are also connected to the first chamber 14a and the second chamber 14b of the tank body 11. The third supply pipe 16c is connected to the supply tank 18a of the dilute saline solution, and the tank body 11
Is connected to the third chamber 14c. The first chamber 14
The first, second and third discharge pipe lines 17a, 17b and 17c are connected to the a, the second chamber 14a and the third chamber 14c.

In the electrolyzed water producing apparatus 10, tap water is supplied to the first chamber 14a and the second chamber 14b of the tank body 11, and the supply pump 1 is supplied from the supply tank 18a.
The diluted salt water is supplied to the third chamber 14c by 8b, and the electrolysis-generated water generated in the chambers 14a to 14c is discharged from the discharge pipes 17a to 17c. During this period, DC power supply 1
Electrolysis and electrodialysis are performed according to the amount of electricity supplied from 5 to each of the electrodes 13a to 13d. In this case, the tank body 1
The third chamber 14c in 1 constitutes an electrolytic cell, and the third chamber 14c
c and the first chamber 14a, and the third chamber 14c and the second chamber 14b
Respectively constitute an electrodialysis tank.

In the electrolyzed water producing apparatus 10 thus constructed, the electrolysis of dilute saline solution is carried out in the third chamber 14c, and hypochlorous acid, hypochlorite ion, chlorine ion,
Although sodium ions and the like are generated, the anion component out of these components permeates the first ion exchange membrane 12a to form the first ion exchange membrane 12a.
The cation component penetrates into the chamber 14a and permeates the second ion exchange membrane 12b to enter into the second chamber 14b. Therefore, in the third chamber 14c, almost neutral neutral water containing hypochlorous acid is obtained, in the first chamber 14a acidic water containing hypochlorous acid is obtained, and in the second chamber 14b. Gives alkaline water and simultaneously produces acidic water, neutral water and alkaline water.

FIG. 2 shows an electrolyzed water producing apparatus 20 according to a second embodiment of the present invention. The electrolyzed water generator 2
0 is equipped with the tank main body 21, a pair of diaphragms 22a and 22b, and three electrodes 23a, 23b and 23c. Each diaphragm 22
Of the a and 22b, the first diaphragm 22a is a normal diaphragm having ion permeability, and the second diaphragm 22b is a cation exchange membrane having a function of selectively permeating cations. 22a and 22b are arranged in the tank main body 21 and inside thereof are a first chamber 24a and a second chamber 24b on both sides.
And a third chamber 24c in the middle.

In each of these chambers, the first electrode 23a is inside the first chamber 24a and the second electrode 23 is inside the second chamber 24b.
b, the third electrode 23c is disposed in the third chamber 24c. Of these electrodes, the first and second electrodes 23a and 23b
Is a plate-shaped electrode, while the third electrode 23c is an electrode having a large number of transmission holes such as lath metal.
3a to 23c are connected to the DC power supply 25. In this DC power supply 25, the first electrode 23a is connected to the anode terminal, the second electrode 23b is connected to the cathode terminal, and the third electrode 23c is connected to the intermediate terminal.
On the other hand, supply chambers 26a, 26b, 26c of diluted saline and discharge pipelines 27a, 27b, 27c are connected to the chambers 24a, 24b, 24c of the tank body 21, respectively.
Each supply line 26a, 26b, 26c is connected to a supply tank 28a of dilute saline.

In the electrolyzed water producing apparatus 20, diluted saline is supplied from the supply tank 28a to the chambers 24a to 24c of the tank body 21 by the supply pump 28b.
Each of the electrolyzed water generated in a to 24c is in each of the discharge pipe lines 2
It is discharged from 7a to 27c. During this period, electrolysis and electrodialysis are performed according to the amount of electricity supplied from the DC power supply 25 to the electrodes 23a to 23c. In this case, the first chamber 24a and the third chamber 24c in the bath main body 21 constitute an electrolytic bath, and the third chamber 24c and the second chamber 24b constitute an electrodialysis bath.

In the electrolyzed water producing apparatus 20 thus constructed, the electrolysis of dilute saline is performed between the first chamber 24a and the third chamber 24c, and hypochlorous acid, Components such as chlorite ion and chlorine ion are generated, and components such as sodium ion are generated in the third chamber, and the generated cation components such as sodium ions in the third chamber 24c are generated in the second diaphragm 22b. And penetrates into the second chamber 24b. Therefore, acidic water containing hypochlorous acid is obtained in the first chamber 24a, alkaline water is obtained in the second chamber 24b, and redox is extremely low in the third chamber 24c, for example, -500 mV. ~ -800mV
Neutral water with a value of is obtained. That is, according to the electrolyzed water producing apparatus 20, acidic water, neutral water, and alkaline water are produced at the same time.

[Brief description of drawings]

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

FIG. 2 is a schematic configuration diagram of an electrolyzed water generator according to a second embodiment of the present invention.

[Explanation of reference numerals] 10, 20 ... Electrolyzed water generator 11, 21, 21 ... Tank body, 1
2a ... 1st ion exchange membrane (anion exchange membrane), 12b ...
2nd ion exchange membrane (cation exchange membrane), 22a ... 1st membrane, 22b ... 2nd membrane (cation exchange membrane), 13a, 1
3b, 13c, 13d ... Electrodes, 23a, 23b, 23c
Electrodes, 14a, 24a ... First chamber, 14b, 24b ... Second chamber, 14c, 24c ... Third chamber, 15, 25 ... DC power supply, 18a, 28a ... Diluted saline supply tank.

Claims (3)

[Claims] 1. A chamber of a first chamber and a second chamber, which are formed by partitioning the inside of the tank by a pair of diaphragms having ion permeability and are located on each side, and a third chamber located between these chambers. In the electrolyzed water generation device, each of which is provided with an electrode to electrolyze a dilute salt solution to generate electrolyzed water, wherein one of the three chambers or between both chambers adjacent to each other is configured as an electrolyzer. An electrolyzed water producing device characterized in that an electrodialysis tank is provided between the chamber adjacent to the electrolysis tank. 2. The electrolyzed water generating apparatus according to claim 1, wherein the third chamber is configured as an electrolyzer, and the first chamber and the third chamber are arranged between the first chamber and the third chamber, and the second chamber and the third chamber. An electrolyzed water generator characterized in that the space between the two is configured as an electrodialysis tank. 3. The electrolyzed water generator according to claim 1, wherein the third chamber and the first chamber are formed into an electrolysis tank, and the second chamber and the third chamber are formed into an electrodialysis tank. An electrolyzed water generator characterized by being configured.