JP3485247B2 - Ionized water generator and partition wall for ionized water generator - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to alkaline functional water (alkali ionized water) for promoting health by electrolyzing water.
The present invention relates to an ion water desalination apparatus and a partition wall for an ion water desalination apparatus that generate medical water (acidic ion water) for sterilization.

[0002]

2. Description of the Related Art Conventionally, in the electrolysis of water, an electrolytic cell having an ion exchange membrane in the central part and a positive electrode in one electrolytic chamber of the electrolytic cell and a negative electrode in the other electrolytic chamber are disposed. I am doing it.

[0003]

In the electrolysis of water using a conventional ion exchange membrane, almost all the charge transfer is carried out by the transfer of cations from the positive electrode to the negative electrode.
Since there is no reverse migration of hydroxide ions, there is a drawback in that the decrease in pH of the acidic ionized water formed in the positive electrode tank is significantly promoted. Further, when electrolyzing with an equal amount of water, the reaction on the negative electrode tank side has a drawback that the pH of the alkaline ionized water becomes high.

In view of the above-mentioned conventional drawbacks, the present invention has been made.
(EN) An ion water desalination apparatus capable of controlling the target pH of ion water by halving the amount of electricity applied to the negative electrode in order to balance the amount of hydrogen ion production by controlling the amount of electricity applied. It is an object.

Further, the present invention provides an ion water desalination apparatus capable of electrolyzing water introduced into an electrolytic cell into pure ion water and also producing ion water having an increased ion concentration. Is intended.

The above and other objects and novel features of the present invention will become more fully apparent when the following description is read in view of the accompanying drawings. However, the drawings are only for explanation and do not limit the technical scope of the present invention.

[0007]

In order to achieve the above object, the present invention provides an electrolytic cell capable of electrolysis,
Two partition walls each provided with a cation exchange membrane and an anion exchange membrane arranged so that the inside of the electrolytic cell is partitioned into three electrolytic chambers, and provided in the electrolytic chamber at the center of the electrolytic cell. The positive electrode and the negative electrodes, which are respectively provided in the electrolysis chambers on both sides of the electrolytic cell and are supplied with half of the current flowing to the positive electrodes, constitute an ion water desalination apparatus.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the embodiments shown in the drawings.

In the first embodiment of the present invention shown in FIGS. 1 to 6, reference numeral 1 denotes an electrolytic cell installed on the upper part of a machine casing 2 for electrolyzing water. Supporting pieces 4, 4 are formed on the inner wall surface of the electrolytic cell 1 so as to be partitioned into three electrolytic chambers 3, 3A, 3.

Reference numerals 5 and 5 denote the electrolytic cell 1 and three electrolytic chambers 3,
3A, a pressing member 7 using four turnbuckle mechanisms on the supporting pieces 4, 4 with sealing materials 6, 6 between them.
Two ion exchange units, which are pressed and fixed by 7, 7, and 7, the two ion exchange units 5 and 5 are
As shown in FIGS. 4 and 5, a pair of partition walls 10 and 10 to which a plurality of cation exchange membranes 8 and a plurality of anion exchange membranes 9 whose outer peripheral portions are supported by the support pieces 4 are attached.
A, a frame body 12 for forming a water chamber 11 between the pair of partition walls 10 and 10A, and a water chamber 11 in the frame body 12.
Water supply device that discharges tap water and drinking water while supplying water 1
3 and 3.

Reference numeral 14 is an electrolysis chamber 3A in the center of the electrolysis chamber 1.
It is a positive electrode which is installed inside and coated with platinum on titanium.

Numerals 15 and 15 are provided in the electrolysis chambers 3 and 3 on both sides of the electrolytic cell 1, respectively. Half of the current flowing to the positive electrode 14 is applied to each of them, and titanium is coated with platinum plating. It is a negative electrode.

Reference numeral 16 denotes each of the electrolysis chambers 3 and 3A of the electrolysis tank 1.
Drinking water such as tap water that is electrolyzed into 3 branch pipes 17, 1
An on-off valve 18, 18, 18 is provided in each of the branch pipes 17, 17, 17 of the decomposed water supply device 16 for supplying the decomposed water using 7, 7.

Reference numeral 19 denotes an electrolysis chamber 3A at the center of the electrolysis cell 1.
It is an acidic ionized water drainage pipe provided with an opening / closing valve 21 for draining the pure acidic ionized water generated in 1 above to the acidic ionized water storage tank 20.

Reference numeral 22 denotes the electrolysis chambers 3 on both sides of the electrolysis cell 1.
Open / close valve 23 for pure alkaline ionized water generated in 3.
It is an alkaline ionized water drainage pipe for draining to an alkaline ionized water storage tank 25 through branch pipes 24 provided with 23.

26 is the positive electrode 14 and the negative electrode 15,
15 is a voltage control device for controlling a voltage for supplying a target current to 15.

In the ion water desalination apparatus 27 having the above-mentioned structure, the opening / closing valves 18, 18, 18 of the decomposition water supply apparatus 16 are opened in the electrolysis chambers 3, 3A, 3 of the electrolysis tank 1 to supply drinking water respectively. A fixed amount of water is supplied to close the on-off valves 18, 18, 18 and the water supply device 1 of the two ion exchange units 5 and 5
Water is supplied into the water chambers 11 and 11 by 3, 13.

After that, the positive electrode 14 and the negative electrodes 15, 15
An electric current is applied for a certain period of time to perform electrolysis. At this time, the anions and cations that have undergone the charge transfer due to the electrolytic reaction are separated and collected by the cation exchange membrane or the anion exchange membrane, and as shown in FIG. The cations of the decomposed water in the chamber 3A pass through the plurality of cation exchange membranes 8, 8 of the pair of partition walls 10, 10A of the two ion exchange units 5, 5, and the negative electrodes 15, 15 on both sides. Is introduced into the electrolysis chambers 3 and 3.

Further, the anions of the decomposed water in the electrolysis chambers 3 and 3 provided with the negative electrodes 15 and 15 on both sides are formed by a plurality of partition walls 10 and 10A of the two ion exchange units 5 and 5, respectively. The positive electrode 14 in the central portion passes through the anion exchange membranes 9 and 9.
Is introduced to the electrolysis chamber 3A in which is provided.

Furthermore, two ion exchange units 5, 5
The cations of tap water or drinking water supplied into the water chambers 11, 11 between the pair of partition walls 10, 10A and 10, 10A are guided to the electrolysis chambers 3, 3 on both sides, and the anions are in the center. Is introduced into the electrolysis chamber 3A in the central part, the ion concentration is increased, pure acidic ionized water having a pH of 3 to 3.2 is generated in the electrolysis chamber 3A in the central part, and the electrolysis chambers 3 in both sides are In 3, pure alkaline ionized water having a pH of 9.2 to 9.7 is generated.

When acidic ionized water or alkaline ionized water is generated in this manner, the opening / closing valve 2 of the acidic ionized water drain pipe 19
1 is opened and stored in the acidic ion water storage tank 20, and the opening / closing valve 23 of the alkaline ion water drain pipe 22 is opened and stored in the alkaline ion water storage tank 25.

The water that has passed through the two ion exchange units 5 and 5 can be used as preliminary water for producing pure water.

[0023]

Different Embodiments of the Invention Next, different embodiments of the present invention shown in FIGS. 7 to 18 and an ion water desalination apparatus considered by the inventor of the present invention will be described. In the explanation of these different embodiments of the present invention and the ionized water desalination apparatus considered by the inventor of the present application, the same components as those of the first embodiment of the present invention are designated by the same reference numerals. A duplicate description will be omitted.

The second embodiment of the present invention shown in FIGS. 7 to 9 is mainly different from the first embodiment of the present invention in that the electrolytic cell 1 has three electrolytic chambers 3 and 3A. In order to divide into 3 parts, two partition walls 10 and 10 are used, and thus even if the ion water desalination apparatus 27A configured as described above cannot increase the ion concentration, the other parts are the same as those of the present invention. The same effect as that of the first embodiment can be obtained.

The ion water desalination apparatus proposed by the inventor of the present invention shown in FIGS. 10 to 12 is mainly different from the second embodiment of the present invention only in the cation exchange membrane or the anion exchange membrane. The ion water demineralizer 27B thus configured may be used in that the partition walls 10B and 10B provided with are used.

The third embodiment of the present invention shown in FIGS. 13 and 14 is mainly different from the first embodiment of the present invention in that the inside of the electrolytic chamber 3A in the central portion of the electrolytic chamber 1 is different. As described above, at least two positive electrodes 14A, 14A, 14A, which are formed by coating titanium with a large number of holes 28 with platinum plating, and in the embodiment of the present invention, three positive electrodes 14A, 14A, 14A, are arranged in parallel at a predetermined interval. Formed positive electrodes 14A, 14A, 1
By arranging 3 pieces of 4A in parallel at a predetermined interval, the conductivity can be improved and can be used for the electrolysis of water containing heavy metals, and the migration of ions can be prevented by the numerous holes 28 of the positive electrodes 14A, 14A, 14A. This makes it possible to provide an ion water desalination apparatus 27C capable of easily producing strong acid ion water and strong alkali ion water.

The fourth embodiment of the present invention shown in FIGS. 15 and 16 is mainly different from the fourth embodiment of the present invention in that the inside of the electrolytic chamber 3A in the central portion of the electrolytic chamber 1 is different. At least two or more pieces formed by weaving or knitting a titanium-plated wire rod 29 coated with platinum to form a mesh,
In the embodiment of the present invention, three positive electrodes 14B, 14B,
Even if the ion water desalination apparatus 27D having such a configuration is used, the same effects as those of the fourth embodiment of the present invention can be obtained in that the 14B are arranged in parallel at a predetermined interval.

The fifth embodiment of the present invention shown in FIGS. 17 and 18 is mainly different from the fourth embodiment of the present invention in that the inside of the electrolytic chamber 3A in the central portion of the electrolytic chamber 1 is different. Positive electrode 14 formed by weaving or knitting titanium-plated wire rod 29 coated with platinum to form a cylindrical mesh
In view of the provision of C, the ion water desalination apparatus 27E having the above-described structure can also obtain the same operational effect as that of the fourth embodiment of the present invention.

[0029]

As is apparent from the above description, the following effects can be obtained in the present invention.

(1) Two electrolysis cells each capable of performing electrolysis and two cation exchange membranes and anion exchange membranes arranged so that the interior of the electrolysis cell is divided into three electrolysis chambers. The partition wall, the positive electrode provided in the electrolytic chamber at the center of the electrolytic cell, and half the current flowing to the positive electrodes provided in the electrolytic chambers at both sides of the electrolytic cell, respectively. Since it is composed of a negative electrode, the amount of hydrogen ions produced can be balanced by controlling the amount of electricity supplied. Therefore, the target pH control of the ionized water can be performed.

(2) According to the above (1), the anions and cations that have undergone charge transfer by the electrolytic reaction can be separated and collected by the ion exchange membrane.

(3) According to the above (1), since the structure is simple, it can be easily implemented.

(4) According to the above (1), since two partition walls are provided with a cation exchange membrane and an anion exchange membrane, respectively, pure acidic ion water and alkaline ion water can be produced. .

(5) According to the second aspect, the same effects as the above (1) to (4) can be obtained, and the amount of electricity supplied is increased by the water supplied to the two ion exchange units so that the hydrogen ion production amount can be increased. It is possible to adjust the balance of acceleration and decrease, and to increase the ion concentration.

(6) Claims 3, 4, and 5 are the above (1) to
In addition to obtaining the same effect as (4), since a large number of holes are formed or at least two positive electrodes formed in a mesh shape or a positive electrode formed in a cylindrical mesh shape are used, it is possible to energize The efficiency is improved, and it can be used for electrolysis of water containing heavy metals, and ions can be moved at the positive electrode, and strong acid ion water and strong alkali ion water can be easily produced.

[Brief description of drawings]

FIG. 1 is a plan view of a first embodiment of the present invention.

FIG. 2 is a front view of the first embodiment of the present invention.

FIG. 3 is an enlarged sectional view taken along line 3-3 of FIG.

FIG. 4 is an exploded perspective view of the ion exchange unit according to the first embodiment of this invention.

FIG. 5 is a partially cutaway explanatory view of the ion exchange unit according to the first embodiment of the present invention.

FIG. 6 is an explanatory diagram during electrolysis according to the first embodiment of this invention.

FIG. 7 is a plan view of the second embodiment of the present invention.

FIG. 8 is a front view of the second embodiment of the present invention.

9 is an enlarged cross-sectional view taken along line 9-9 of FIG.

FIG. 10 is a plan view of an ionized water desalination apparatus considered by the present inventors.

FIG. 11 is a front view of an ionized water desalination apparatus considered by the present inventor.

12 is an enlarged cross-sectional view taken along line 12-12 of FIG.

FIG. 13 is a plan view of the third embodiment of the present invention.

FIG. 14 is an explanatory diagram of a positive electrode according to a third embodiment of the present invention.

FIG. 15 is a plan view of the fourth embodiment of the present invention.

FIG. 16 is an explanatory diagram of a positive electrode according to a fourth embodiment of the present invention.

FIG. 17 is a plan view of the fifth embodiment of the present invention.

FIG. 18 is an explanatory diagram of a positive electrode according to a fifth embodiment of the present invention.

[Explanation of symbols]

1: Electrolysis tank, 2: Machine frame, 3, 3A: Electrolysis chamber, 4: Support piece, 5: Ion exchange unit, 6: Sealing material, 7: Pressing tool, 8: Cation exchange membrane, 9: Anion Exchange membrane, 10, 10A, 10B: Partition wall, 11: Water chamber, 12: Frame body, 13: Water supply device, 14, 14A, 14B, 14C: Positive electrode, 15: Cathode electrode, 16: Decomposition water supply device , 17: Branch pipe, 18: Open / close valve, 19: Acid ion water drain pipe, 20: Acid ion water storage tank, 21: Open / close valve, 22: Alkaline ion water drain pipe, 23: Open / close valve, 24: Branch pipe, 25: Alkaline ion water storage tank, 26: Voltage control device, 27, 27A to 27E: Ion water desalination device, 28: Many holes, 29: Wire rod.

─────────────────────────────────────────────────── --Continued from the front page (56) References JP-A-8-173963 (JP, A) JP-A-7-164479 (JP, A) JP-A-7-136659 (JP, A) JP-A-7- 108273 (JP, A) JP-A-6-312185 (JP, A) JP-A-8-187492 (JP, A) JP-A-9-268395 (JP, A) JP-A-9-239364 (JP, A) JP-A-7-308672 (JP, A) JP-A 64-90088 (JP, A) JP-A 54-23078 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) C02F 1/46 B01D 61/46

Claims (5)

(57) [Claims] 1. An electrolyzer capable of performing electrolysis, and two electrolyzers each including a cation exchange membrane and an anion exchange membrane arranged so that the interior of the electrolyzer is partitioned into three electrolysis chambers. A partition wall, a positive electrode provided in the electrolysis chamber at the center of the electrolytic cell, and a negative current to which half of the current flowing to the positive electrodes provided in the electrolysis chambers at both sides of the electrolytic cell are respectively passed. An ion water desalination apparatus comprising an electrode. 2. An electrolyzer capable of performing electrolysis, a cation exchange membrane and an anion arranged so as to form a water chamber arranged so that the interior of the electrolyzer is partitioned into three electrolyzers. A pair of partition walls each equipped with an ion exchange membrane,
Two ion exchange units consisting of a water supply device for supplying water for increasing the ion concentration into the water chamber between the pair of partition walls, and a positive electrode provided in the electrolysis chamber at the center of the electrolytic cell. An ion water desalination apparatus comprising: a negative electrode that is provided with electrolysis chambers on both sides of the electrolyzer, to which half of the current that flows to the positive electrode is respectively passed. 3. An electrolyzer capable of performing electrolysis, and two electrolyzers each including a cation exchange membrane and an anion exchange membrane arranged so that the interior of the electrolyzer is partitioned into three electrolysis chambers. A partition wall, a positive electrode having a large number of holes provided at least two in parallel in a predetermined interval in the central electrolysis chamber of the electrolysis cell, and electrolysis chambers on both sides of the electrolysis cell. And a negative electrode to which half of the current flowing to the positive electrode is applied, respectively. 4. An electrolyzer capable of performing electrolysis, and two electrolyzers each including a cation exchange membrane and an anion exchange membrane arranged so that the interior of the electrolyzer is divided into three electrolysis chambers. The partition wall, a mesh-shaped positive electrode provided in the electrolysis chamber at the center of the electrolysis cell in parallel at a predetermined interval, and at least two mesh positive electrodes, and the positive electrodes provided in the electrolysis cells on both sides of the electrolysis cell. An ion water desalination apparatus comprising a negative electrode to which half of the current flowing to the electrodes is respectively caused to flow. 5. An electrolytic cell capable of performing electrolysis, two partition walls provided with an ion exchange membrane arranged so that the interior of the electrolytic cell is divided into three electrolytic chambers, and the electrolytic cell of the electrolytic cell. A cylindrical mesh-shaped positive electrode provided in the central electrolysis chamber and half of the current flowing to the positive electrodes respectively provided in the electrolysis chambers on both sides of the electrolytic cell An ion water desalination apparatus comprising an electrode.