JPH07204646A - Electrolytic ionic water generating device - Google Patents

Abstract

PURPOSE:To inhibit the contamination of an alkali ionic water generated in a cathode chamber by hypochloric acid generated in an anode chamber by decreasing the minimum cross section area of a water path through which the alkaline ionic water is discharged, compared to the minimum cross section area of a water path through which the water is supplied to the cathode chamber so that the water pressure of the cathode chamber is higher than that of the anode chamber. CONSTITUTION:An electrolytic tank 1 is composed of cases 2, 3, an ion exchange membrane 4, a cathode 5 and an anode 6, and the cathode 5 and the anode 6 are fixed to the cases 2, 3 by the hook parts 15, 16 of protrusions 7, 10. The tap water supplied from faucets 8, 11 is electrolyzed in the cathode chamber 17 and the anode chamber 18, and the alkaline ionic water generated in the chamber 17 is discharged from a discharge port 9. The water pressure of the chamber 17 is made higher than that of the chamber 18 by decreasing the minimum cross section area of a water path through which the alkaline ionic water is discharged, compared to the minimum cross section area of a water path through which tap water is supplied to the chamber 17. The ion exchange membrane 4 is held by the protrusions 7, 10, and if the water pressure of the chamber 17 is increased, the deflection of the ion exchange membrane 4 to the electrode 6 side is inhibited.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrolytic ion water generator.

[0002]

2. Description of the Related Art Generally, as an electrolytic ionized water generator,
It has a cathode chamber and an anode chamber partitioned by an ion exchange membrane, and these cathode chamber and anode chamber are provided with electrolytic cells in which a negative electrode and a positive electrode are respectively arranged, and the supplied tap water is Water is divided into two parts to supply water to the cathode chamber and the anode chamber,
It is known that the tap water supplied to these cathode chamber and anode chamber is electrolyzed to discharge alkaline ionized water from the cathode chamber and acidic ionized water from the anode chamber. . The alkaline ionized water thus produced is used for drinking.

[0003] In the electrolytic ion water generator described above, in the anode chamber by the said _{^{electrolysis, 2Cl - → Cl 2 + 2e}} - by chemical reaction _{^{Cl 2 + H 2 0 → HOCl}} + HCl, HOCl ( hypochlorous acid) is generated. This hypochlorous acid has a bactericidal action and a bleaching action, and is not suitable for drinking.

The anode chamber for generating hypochlorous acid is separated from the cathode chamber for generating alkaline ionized water by an ion exchange membrane.
In some cases, this partition is insufficient, and hypochlorous acid mixes in alkaline ionized water. Even with this partition completely, hypochlorous acid passes through the ion exchange membrane itself or mixes with the alkaline ionized water via the branch point that divides the supplied tap water. By the way, the tap water supplied to the electrolyzer has most of the chlorine filtered by an activated carbon filter, but in order to completely filter it, the cost of the filter is high, and it is necessary to use it in a domestic electrolytic ion water generator. Is difficult to do.

[0005]

The above-described conventional electrolytic ion water generator has a problem that hypochlorous acid is generated in the anode chamber and is mixed with the alkaline ion water. It is an object of the present invention to provide an electrolytic ionized water generator capable of minimizing mixing of hypochlorous acid generated in the anode chamber with alkaline ionized water.

[0006]

The electrolytic ionized water generator of the present invention for solving the above-mentioned problems has a cathode chamber and an anode chamber partitioned by an ion exchange membrane, and these cathode chambers are The anode chamber is provided with an electrolytic cell in which a negative electrode and a positive electrode are respectively arranged, and the supplied tap water is divided into two parts to be supplied to the cathode chamber and the anode chamber, respectively, and the cathode chamber and the anode chamber. The tap water supplied to is electrolyzed, alkaline ionized water is discharged from the cathode chamber, and acidic ionized water is discharged from the anode chamber, in an electrolytic ionized water generator for electrolyzing tap water, A first case having a substantially concave cross section, a negative electrode fixed to the bottom thereof, and a projection protruding from the bottom and inserted into a hole of the negative electrode; and a configuration similar to the first case. The positive electrode instead of the negative electrode The determined second case is abutted via the ion exchange membrane and fixed in this abutted state, and the edge of the ion exchange membrane is abutted with the first case and the second case by the butting. Of the ion exchange membrane, and the substantially central portion of the ion exchange membrane is sandwiched between the above-mentioned projections, so that the first case and the ion exchange membrane form the cathode chamber, and the second case and the ion. The anode chamber is formed by the exchange membrane, and after the tap water is divided into two as described above, the minimum cross-sectional area of the water channel that is supplied to the cathode chamber, and after being divided into two, the water channel that is supplied to the anode chamber. The minimum cross-sectional area, the minimum cross-sectional area of the water channel from which the alkaline ion water is discharged from the cathode chamber, and the minimum cross-sectional area of the water channel from which the acidic ion water is discharged from the anode chamber, the water pressure in the cathode chamber is the anode chamber. Oke It is characterized in that the set to be higher than the water pressure.

[0007]

In the electrolytic ionized water producing apparatus constructed as described above, the supplied tap water is divided into two parts, which are supplied to the cathode chamber and the anode chamber. Alkaline ionized water is stored in the cathode chamber and acidic ionized water is stored in the anode chamber. Is generated. Since the water pressure in the cathode chamber becomes higher than that in the anode chamber, hypochlorous acid generated in the anode chamber is substantially eliminated from mixing with the alkaline ionized water generated in the cathode chamber. Further, even if the water pressure in the cathode chamber becomes high, the ion exchange membrane is sandwiched between the protrusions, so that the ion exchange membrane is substantially unlikely to be bent by the water pressure.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 and FIG. 2 show an outline of a main part of the electrolytic ionized water producing apparatus related to the present invention.
1A is a vertical side view, FIG. 1B is a partially cutaway front view, and FIG. 2 is a transverse bottom view. In FIGS. 1 and 2, reference numeral 1 denotes an electrolytic cell, which is a first case 2, a second case 3, a well-known ion exchange membrane 4, and a negative electrode 5.
And the positive electrode 6. The first case 2 is made of plastic and has a substantially concave cross section, and a plurality of protrusions 7 are integrally provided on the bottom of the case 2.
A water supply port 8 to which tap water to be described later is supplied and a water discharge port 9 to discharge alkaline ionized water to be described later are opened. The second case 3 is substantially the same as the first case 2, and has a plurality of protrusions 10 provided at positions corresponding to the protrusions 7, and has a water supply port 11 and a spout for discharging acidic ionized water described later. Have twelve.

The negative electrode 5 and the positive electrode 6 are made of a titanium plate and have holes 13 and 14 into which the protrusions 7 and 10 can be inserted.
Is punched by pressing and is coated with platinum. The protrusions 7 and 10 have hook portions 15 and 16, respectively, and the negative electrode 5 is formed on the bottom surface of the first case 2.
By arranging the holes 13 so that the holes 13 are inserted into the projections 7, the hook portion 15 allows the negative electrode 5 to be inserted.
Are fixed to the bottom surface. Similarly, the second case 3
The positive electrode 6 is also fixed to the bottom surface of the. In this way, the first case 2 having the negative electrode 5 fixed thereto and the second case 3 having the positive electrode 6 fixed thereto are abutted via the ion exchange membrane 4, and in this abutted state, It is fixed by well-known ultrasonic welding.

In this butted state, the edge of the ion exchange membrane 4 is near the edges of the first and second cases 2 and 3,
Further, the substantially central portion of the ion exchange membrane 4 is sandwiched between the protrusions 7 and 10, and the ion exchange membrane 4 is fixed to the first and second cases 2 and 3. In this way
The cathode chamber 17 is formed by the ion exchange membrane 4 and the first case 2,
Further, the ion exchange membrane 4 and the second case 3 allow the anode chamber 18
Is formed. The water outlet 12 of the second case 3 has the same inner diameter as the water inlet 11, but the inner diameter of the water outlet 9 of the first case 2 is smaller than that of the water inlet 8, and the water inlet 8 supplies water. It has a larger diameter than the mouth 11.

As is well known, tap water supplied through a well-known activated carbon filter or the like is bisected and supplied to the water supply ports 8 and 11 described above. When the water pressure of the supplied tap water reaches a predetermined value, the negative electrode 5 and the positive electrode 6 are well known.
An electrolytic current flows in the cathode chamber 17 and the anode chamber 18 to generate alkaline ionized water and acidic ionized water, respectively. Then, the alkaline ionized water is ejected from the ejection port 9 and the acidic ionized water is ejected from the ejection port 12.

In this state, since the inner diameter of the water discharge port 9 is smaller than that of the water supply port 8 as described above, the water pressure in the cathode chamber 17 becomes higher than that in the anode chamber 18, and as described above, The hypochlorous acid generated in 18 is generated in the cathode chamber 17
It is substantially eliminated from being mixed with the alkaline ionized water produced in step 1.

In the above embodiment, the inner diameter of the water discharge port 12 and the inner diameter of the water supply port 11 are made the same, and the inner diameter of the water discharge port 9 is made smaller than that of the water supply port 8 so that the water pressure in the cathode chamber 17 becomes equal to that of the anode chamber 18. I explained that I made it higher than that. However, it is common to use a hose or the like connected to the water outlets 9 and 12, and since pipes and the like are also connected to the water outlets 8 and 11, the water outlets 9 and 12 and the water inlet 8 and 12 are simply connected.
The water pressure of the cathode chamber 17 with respect to the anode chamber 18 is not determined only by the inner diameter of 11, but the minimum cross-sectional area A1 of the water channel supplied to the cathode chamber 17 after the tap water supplied as described above is divided into two parts. The minimum cross-sectional area A2 of the water channel (including a hose connected to the water outlet 9) from which the alkaline ionized water is discharged from the cathode chamber 17, and the anode chamber after the tap water is divided into two as described above. 1
8 by the minimum cross-sectional area B1 of the water channel supplied to 8 and the minimum cross-sectional area B2 of the water channel (including the hose connected to the spout 12) from which the acidic ionized water is discharged from the anode chamber 18. The water pressure of the cathode chamber 17 with respect to 18 is determined.

In order to make this easier to understand, the inner diameters of the water discharge ports 9 and 12 and the water supply ports 8 and 11 have been described above. Therefore, in the above embodiment, A1> A2 and B1 = B2
And, moreover, it corresponds to A1> B1. In order to increase the water pressure of the cathode chamber 17 with respect to the anode chamber 18, A1 = A2 and B1 <B2 may be satisfied. In short, in the present invention, A1, A2, B1 and B2 are determined so that the water pressure in the cathode chamber 17 with respect to the anode chamber 18 becomes high.

As described above, when the water pressure in the cathode chamber 17 with respect to the anode chamber 18 increases, the water pressure may cause the ion exchange membrane 4 to bend toward the anode chamber 18. However, in the above-mentioned embodiment, since the substantially central portion of the ion exchange membrane 4 is sandwiched by the protrusions 7 and 10, the deflection is extremely small. By the way, when this deflection is large, the ion exchange membrane 4 comes very close to the positive electrode 6, so that the hypochlorous acid, which is likely to occur in the vicinity of the positive electrode, is generated in the ion exchange membrane 4.
It is also conceivable that it is mixed with the alkaline ionized water generated in the cathode chamber 17 through the. As described above, A1>
A2 and B1 = B2, or A1 = A
By setting 2 and B1 <B2, the ion exchange membrane 4 is provided in the anode chamber 1 when the protrusions 7 and 10 are not provided.
It was confirmed by the present inventor that it bends to the 8 side. this is,
This shows that the water pressure in the cathode chamber 17 with respect to the anode chamber 18 has increased. Further, since the edge portion of the ion exchange membrane 4 is sandwiched between the edge portions of the first and second cases 2 and 3, the hypochlorous acid generated in the positive electrode 18 is There is no case of bypassing the edge of the ion exchange membrane 4 and mixing with the alkaline ionized water generated in the cathode chamber 17.

As in the above embodiment, the protrusions 7 and 10 are provided on the first and second cases 2 and 3 to maintain the distance between the ion exchange membrane 4 and the negative electrode 5 and the positive electrode 6. Alternatively, it is conceivable to provide a projection on the ion exchange membrane so as to maintain the distance between the ion exchange membrane and the negative electrode and positive electrode, but in general, the ion exchange membrane is thin, and the projection is integrated with this. In the case of molding, the heat generated during the molding causes waviness in the ion-exchange membrane, and the above-mentioned interval cannot be maintained.

[0017]

As described above, in the electrolytic ionized water generator of the present invention, the water pressure in the cathode chamber 17 with respect to the anode chamber 18 is made high, so that the hypochlorous acid generated in the anode chamber 18 is It is possible to minimize mixing with the alkaline ionized water generated in the cathode chamber 17.

[Brief description of drawings]

1A and 1B show an embodiment of the present invention, in which FIG. 1A is a vertical side view and FIG. 1B is a partially cutaway front view.

FIG. 2 is a cross-sectional bottom view showing the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electrolyzer 2 1st case 3 2nd case 4 Ion exchange membrane 5 Cathode electrode 6 Positive electrode 7,10 Protrusion 8,11 Water supply port 9,12 Water discharge port 13,14 Hole 15,16 Hook part 17 Cathode chamber 18 Anode chamber

Claims (1)

[Claims] 1. A cathode chamber and an anode chamber, which are partitioned by an ion exchange membrane, and each of the cathode chamber and the anode chamber is provided with an electrolytic cell in which a negative electrode and a positive electrode are provided, and the supply is provided. The tap water is divided into two and supplied to the cathode chamber and the anode chamber, respectively, and the tap water supplied to the cathode chamber and the anode chamber is electrolyzed, alkaline ionized water from the cathode chamber, and the In an electrolytic ionized water generator that electrolyzes tap water, in which acidic ionized water is discharged from the anode chamber, the cross section is formed into a substantially concave shape, the negative electrode is fixed to the bottom of the electrolytic ionized water generator, and the negative electrode is projected from the bottom. A first case having a protrusion inserted into the hole of the negative electrode, and a second case having the same configuration as the first case and having a positive electrode fixed instead of the negative electrode fixed thereto.
The case is abutted through the ion exchange membrane and fixed in this abutted state, and the edge portion of the ion exchange membrane is abutted by the abutment.
In the vicinity of the edge between the case and the second case, and the substantially central portion of the ion exchange membrane is sandwiched by the above-mentioned projections, and the cathode chamber is formed by the first case and the ion exchange membrane. In addition, the anode chamber is formed by the second case and the ion exchange membrane, and after the tap water is divided into two as described above, the minimum cross-sectional area of the water channel supplied to the cathode chamber, and after being divided into two, The minimum cross-sectional area of the water channel to be supplied to the anode chamber, the minimum cross-sectional area of the water channel from which the alkaline ion water is discharged from the cathode chamber, and the minimum cross-sectional area of the water channel from which the acidic ion water is discharged from the anode chamber, An electrolyzed ion water generator characterized in that the water pressure in the cathode chamber is set to be higher than the water pressure in the anode chamber.