JP2005029881A - Electrode structure for small electrolytic cell - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electrode structure which improves electrolysis efficiency, is miniaturized, has a simple structure, reduces the electrolytic corrosion and deterioration of an electrode, has adequate workability, activates an aqueous solution in an electrolytic cell, reduces burden on the electrode, extends the life of each electrode, and obtains activated electrolytic water. <P>SOLUTION: The electrode structure in the main body 10 of an electrolytic cell comprises a first electrode 20 and a second electrode 30 fixed in the main body of the electrolytic cell 10, and a cylindrical electrolytic diaphragm 40 made of fine ceramic fixed between the first electrode 20 and the second electrode 30. The distance between the first electrode 20 and the second electrode 30 is set to 5 mm or less. Furthermore, the electrode structure in the main body 10 of an electrolytic cell has the electrolytic diaphragm 40 which has been formed/worked into the thickness of 2 mm or thinner, and then is arranged between the first electrode 20 and the second electrode 30; has the distance between the first electrode 20 and the electrolytic diaphragm 40 controlled to 1 mm or less; or/and the distance between the second electrode 30 and the electrolytic diaphragm 40 controlled to 1 mm or less. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

Detailed Description of the Invention

  The present invention is an electrode structure of an electrolytic cell of an electrolyzed water generating apparatus in which a first electrode and a second electrode are a pair and each has a cylindrical shape, and is made of fine ceramics between a first electrode and a second electrode. The present invention relates to an electrode structure for a small electrolyzer characterized by providing a diaphragm.

In recent years, electrolyzed water generators for using strongly acidic water generated by electrolyzing water for sterilization or using alkaline ionized water as a health drink have come to be used. Along with this, the need for miniaturization of electrolyzed water generators has increased, and the number of development projects has increased.
For example, as a device for reducing the size and increasing the efficiency of an electrolytic cell, an electrode and an electrolytic diaphragm material, or those focusing on electrode shape and arrangement are generally proposed, and one of them is electrode arrangement. It is generally known that the electrolytic efficiency is improved by shortening the distance between them, and for example, a method in which the cathode chamber and the anode chamber are formed in a double cylindrical shape through an electrolytic diaphragm has been attracting attention. For example, in the case of Japanese Utility Model Publication No. 55-141594, a combination of a columnar electrode, a cylindrical diaphragm, and a cylindrical electrode, or a combination of a cylindrical outer electrode and a cylindrical inner electrode disclosed in Japanese Patent Application Laid-Open No. 64-27688 is disclosed. A combination of projects is known.

In addition, with respect to each electrode of the electrolyzed water generator, development projects aiming at further miniaturization, higher efficiency, and longer life have been increasing.
For example, the presence of a power supply terminal does not hinder the shortening of the distance between the electrodes, the distance between the electrodes can be arranged close to each other, the electrolytic efficiency is improved, the size can be reduced, and simple. An object of the present invention is to provide an electrolyzed water generating apparatus having an electrolytic cell having a structure, and as a means for solving the problem, the electrolytic cell includes a cathode chamber, an anode chamber, and a diaphragm partitioning the cathode chamber and the anode chamber. The electrode disposed in the chamber and the electrode disposed in the anode chamber are provided to face each other through a diaphragm, and each electrode is provided with a rod-shaped power feeding terminal connected thereto, and the central axis of this terminal is A development project is known that is located on the opposite side of the opposite surface of the electrodes with respect to the center in the thickness direction of the electrodes. (Refer to Unexamined-Japanese-Patent No. 2003-33765)

  In addition, for example, to provide a compact simple electrolyzed water production apparatus capable of removing bubbles in the electrolyzed water and obtaining HClO-containing water having weak acidity and strong sterilizing power, In a flowing water type non-diaphragm electrolyzed water production apparatus, the electrolytic cell has a double structure consisting of an inner cylinder and an outer cylinder, and electrodes are respectively attached to the inner wall of the outer cylinder and the outer wall of the inner cylinder. There has been known a case of a simplified electrolyzed water production apparatus characterized in that the electrolyzed water storage tank is electrolyzed with the inner cylinder and the inside of the inner cylinder is generated. (Refer to Unexamined-Japanese-Patent No. 2001-104956)

Problems to be solved by the invention

  However, various problems have been pointed out with respect to the conventional electrolyzed water generating device. One is that mineral components such as calcium ions and magnesium ions melted by electrolysis adhere to each electrode, and the electrolysis performance is reduced. Therefore, in the electrolyzed water generating device, the polarity of the DC power supply applied to both electrodes is reversed, so that the mineral components adhering to each electrode are eluted in water to wash both electrodes. An apparatus having a mechanism for performing the above is also known. One is that during electrolysis, a considerable electrolytic pressure is applied to each electrode, so that each electrode is electrolytically eroded or altered, so that each electrode is replaced after a predetermined expiration date. Yes.

  In addition, the electrolytic cell disclosed in Japanese Patent Application Laid-Open No. 2003-33765 includes a cathode chamber, an anode chamber, and a diaphragm that partitions the cathode chamber and the anode chamber, and is disposed in the electrode and the anode chamber disposed in the cathode chamber. The electrodes provided are opposed to each other through the diaphragm, and each electrode is provided with a rod-shaped power feeding terminal connected thereto, and the center axis of this terminal is set between the electrodes with respect to the center in the thickness direction of the electrodes. In the project characterized by being positioned on the opposite side to the opposite surface of the above, and in the flowing water type diaphragmless electrolyzed water production apparatus disclosed in Japanese Patent Application Laid-Open No. 2001-104956, the electrolytic cell is separated from the inner cylinder and the outer cylinder. Electrolyzed water generated inside the inner cylinder by electrolyzing between the outer cylinder and the inner cylinder by attaching electrodes to the inner wall of the outer casing and the outer wall of the inner cylinder. In the case of a simple electrolyzed water production system that is characterized by being a water storage tank, Complicated and Toka difficult to shorten the distance between the electrodes, also difficult to assembly work of the electrode, there is a problem of the cost.

The present invention is intended to solve the above-described problems, and the distance between the electrodes can be arranged close to each other, reducing the electric resistance that occurs during electrolysis, improving the electrolysis efficiency, The object is to provide an electrode structure that can be miniaturized and has a simple structure.
In addition, the present invention provides an electrode structure capable of reducing the size of the electrolyzed water generating device and the electrolytic cell by reducing the electrolytic corrosion and alteration of the electrode and providing an electrode for electrolysis with good workability. It is the purpose.
In addition, the present invention reduces the burden on the electrodes by activating the aqueous solution inside the electrolytic cell, and extends the life of each electrode to obtain activated electrolyzed water. It is intended to provide.

Means for solving the problem

  The electrode structure for a small electrolytic cell of the invention of claim 1 is an electrode structure of an electrolytic cell of an electrolyzed water generating device in which a first electrode and a second electrode are paired and each has a cylindrical shape. It is characterized by providing a cylindrical electrolytic diaphragm made of fine ceramics.

  In the present invention, the “electrode” can be selected from metal, alloy, conductive ceramic, and conductive plastic.

In the present invention, regarding the “electrolysis tank of the electrolyzed water generating apparatus”, generally known means and ranges may be used as the means for electrolysis, the type of electrode, and the current / voltage used.
In addition, regarding the means for electrolysis of the electrolytic cell, in principle, in an apparatus for generating electrolytic water such as alkaline water or acidic water, the electrolytic cell partitioned into a pair of ion chambers by an ion exchange membrane capable of transmitting ions. Any means including a pair of electrodes, that is, an anode and a cathode provided individually in each ion chamber may be used.

  The “electrolytic diaphragm” in the present invention is a material that can transmit ions.

  The electrode structure for a small electrolytic cell according to a second aspect of the invention is characterized in that the distance between the first electrode and the second electrode according to the first aspect is 5 mm or less.

  The electrode structure for a small electrolytic cell according to a third aspect of the invention is characterized in that the thickness of the electrolytic diaphragm according to the first aspect is 2 mm or less.

  The electrode structure for a small electrolytic cell according to a fourth aspect of the invention is such that the distance between the first electrode and the electrolytic diaphragm according to claim 1 or / and the distance between the second electrode and the electrolytic diaphragm is 1 mm or less. It is a feature.

  The electrode structure for a small electrolytic cell according to a fifth aspect of the present invention is characterized in that the electrolytic diaphragm according to the first aspect is provided with zeolite.

In the present invention, regarding “acidic water or strongly acidic water”, acidic water refers to an aqueous solution having a pH of about 7 to about pH 2. Among them, an aqueous solution having a pH of about 4 to about pH 2 is particularly referred to as strongly acidic water. It is also known that strongly acidic water has a disinfecting and sterilizing effect.
In the present invention, “alkaline water or strong alkaline water” refers to an aqueous solution having a pH of about 7 to about pH 12, and an aqueous solution having a pH of about 10 to about 12 is particularly referred to as a strong alkaline water. In addition, it is known that strong alkaline water has an action of decomposing fat and protein.

  Hereinafter, embodiments of the electrode structure for a small electrolytic cell of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view illustrating an embodiment of the present invention, and FIG. 2 is a side view illustrating the embodiment of the present invention.

  The electrolyzed water generating apparatus according to the present invention generates electrolyzed water such as acidic ion water and alkaline ionized water by electrolysis of water, and the configuration of these apparatuses is a conventional electrolyzed water generating apparatus. Since a general configuration can be employed, detailed description will be omitted, and the structure of the electrode that is a feature of the present invention will be described in detail.

  1 and 2, reference numeral 10 denotes an electrolytic cell main body. The first electrode 20 and the second electrode 30 are fixed to the electrolytic cell main body 10, and are made of fine ceramics so as to be between the first electrode 20 and the second electrode 30. The electrolytic cell main body 10 is designed so that the cylindrical electrolytic diaphragm 40 is fixed and the distance between the first electrode 20 and the second electrode 30 is 5 mm or less, and the thickness of the electrolytic diaphragm 40 is 2 mm or less. The electrolytic cell body 10 is designed to be between the first electrode 20 and the second electrode 30 after being molded and processed, and the distance between the first electrode 20 and the electrolytic diaphragm 40 is 1 mm or less, and / or the second electrode 30. By making the distance between the electrolytic membrane 40 and 1 mm or less, the electrode structure for a small electrolytic cell of the present invention can be an electrolytic cell having a small and light structure.

Regarding the electrolysis efficiency in the present invention, for example, when the same raw water is allowed to flow into the electrolytic cell at a dynamic water pressure of 0.1 MPa, an example in which the electrolysis efficiency of the first electrode 20 and the second electrode 30 is measured, When the distance between the one electrode 20 and the second electrode 30 is 10.0 mm, the electrolysis efficiency is about 15%, and when the distance between the first electrode 20 and the second electrode 30 is 5.0 mm, it is about It can be expected that the electrolytic efficiency will be further improved when the distance between the first electrode 20 and the second electrode 30 is set to 18 mm or less. Here, the electrolysis efficiency indicates the ratio of OH ⁻ ions generated per unit current, and is defined by the following equation (1).
ξ = (w ′ / w) × 100 (1)
ξ: Electrolytic efficiency (%)
W: Mass transfer based on Faraday's law (g)
w ′: Actual mass transfer amount (g)

  In addition, this invention is not limited to the said Example, A various deformation | transformation implementation is possible.

The invention's effect

According to the present invention, by using fine ceramics as an electrolytic diaphragm, electromagnetic waves (far infrared rays) of 4 μm to 14 μm, also called growth rays emitted from the fine ceramics, irradiate water molecules to bond water molecules together. By cutting, the water molecule clusters can be made smaller, and the water can be easily electrolyzed.
As a result, it is difficult to place a burden on the electrolytic cell of the electrolyzed water conditioning apparatus, and the life of the apparatus can be extended. Moreover, water is activated when water passes through the fine ceramic layer. That is, the durability of the electrode can be improved by the far-infrared effect imparted simultaneously with the reduction of the water molecule cluster.
In addition, since the water molecule clusters are small and are easily electrolyzed, the bactericidal properties of the acidic water obtained together with the alkaline ionized water can be improved.

  Furthermore, since the fine ceramic of the present invention has a function of adsorbing chlorine and other harmful substances, when the aqueous solution in the electrolytic cell is in contact with the fine ceramic layer, chlorine and other harmful substances are absorbed by the fine ceramics adsorbing function. Adsorption is performed to purify the aqueous solution.

  In addition, since the aqueous solution entering the electrolytic cell is easily electrolyzed because of the small clusters of water molecules, the time required for the electrolysis can be shortened, and contamination in the electrolytic cell can be reduced as compared with the conventional case. As a result, mineral components or the like hardly adhere to the electrode member, and even if it adheres, the deposit attached to the electrode member can be easily and surely removed in cleaning that reverses the ionization effect performed in the electrolytic cell. The ability to do so eliminates the need for frequent electrode replacement.

  Further, according to the present invention, by shortening the distance between the electrodes, the electrolytic efficiency can be improved and the electrolytic cell can be miniaturized.

It is sectional drawing explaining embodiment of this invention. It is a side view explaining embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Electrolyzer main body 20 1st electrode 30 2nd electrode 40 Electrolytic diaphragm

Claims (5)

It is an electrode structure of an electrolytic cell of an electrolyzed water generating device in which a first electrode and a second electrode are in a cylindrical shape, and a cylindrical electrolytic diaphragm made of fine ceramics is provided between the first electrode and the second electrode. An electrode structure for a small electrolytic cell. The electrode structure for a small electrolytic cell according to claim 1, wherein a distance between the first electrode and the second electrode is 5 mm or less. The electrode structure for a small electrolytic cell according to claim 1, wherein the thickness of the electrolytic diaphragm is 2 mm or less. The electrode structure for a small electrolytic cell according to claim 1, wherein a distance between the first electrode and the electrolytic diaphragm or / and a distance between the second electrode and the electrolytic diaphragm is 1 mm or less. The electrode structure for a small electrolytic cell according to claim 1, wherein zeolite is provided on the electrolytic diaphragm.

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