JPH05329481A - Continuous electrolytic water generator having silver electrolyzer in water supply pipe - Google Patents

Abstract

PURPOSE:To prevent the propagation of bacteria even if water is retained in an electrolytic cell and to obtain sterilized electrolytic water in the continuous electrolytic water generator by providing a silver electrolyzer for eluting silver into water when impressed with a voltage to a pipeline on the water supply side of the electrolytic cell. CONSTITUTION:A silver electrolyzer 10 is provided in a pipeline 7 at the water supply side of an electrolytic cell 1, silver ion is eluted into the raw water passing through the pipeline 7, and then electrolysis is carried out. A part of the eluted silver ion combines with oxygen, chlorine, etc., in the water to form silver oxide, silver chloride, etc., and hence the water contg. silver oxide and silver chloride is introduced into the electrolytic cell 1 and electrolyzed. Since an hydroxyl group is liberated as the ion in the cathode compartment 5 of the electrolytic cell 1, the silver ion combines with the hydroxyl ion in the alkaline water in the cathode compartment 5 to form silver hydroxide, hence the sterilizing power is remarkably increased, large amts. of silver oxide and silver chloride are formed in the acidic water in the anode compartment 6, and the sterilizing power is imparted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention electrolyzes water sent from a water supply pipe in an electrolyzer and discharges the produced alkaline water and acidic water separately from a pair of drain pipes. Regarding

[0002]

2. Description of the Related Art A continuous electrolytic water conditioning system has a structure in which raw water supplied from a water supply pipe is electrolyzed into alkaline water and acidic water in the process of passing through the electrolytic cell and discharged separately from a pair of drain pipes. There is.

[0003]

In this type of electrolytic water conditioner, water flow stops when the electrolyzed water generation operation is stopped, and water stays in the electrolytic cell. Therefore, if the electrolytic stop time becomes long, the electrolytic cell, especially However, there is a possibility that various bacteria will propagate in the cathode chamber that produces alkaline water for drinking, which is a sanitary problem. As a countermeasure for this, a method such as periodical cleaning with a chemical solution is taken, but this alone cannot be said to be perfect, and in particular, there is a problem that appropriate sterilization as needed cannot be obtained.

Therefore, an object of the present invention is to provide an electrolytic water conditioning apparatus which prevents bacteria from proliferating in the electrolytic cell during the electrolysis stop time and imparts efficient sterilization to the alkaline water discharged from the electrolytic cell. To do.

[0005]

In order to achieve the above-mentioned object, the present invention electrolyzes water introduced from a water supply pipe into alkaline water and acidic water in an electrolytic cell, and generates the alkaline water and acidic water. In a continuous electrolytic water conditioner that separately discharges from a pair of drainage pipes, a silver electrolytic device that elutes silver ions into water by applying a voltage is interposed in a water supply side pipeline of an electrolytic cell. ..

[0006]

EFFECTS OF THE INVENTION The silver ions eluted in the raw water to be supplied are combined with oxygen and chlorine in the raw water to form silver oxide and silver chloride in the water, and the sterilized water is supplied to the electrolytic cell. . Furthermore, in the cathode chamber of the electrolytic cell, since the hydroxide ions and silver ions in the alkaline water produced by electrolysis combine to form silver hydroxide, the water in the cathode chamber and the water discharged from the cathode chamber have a sterilizing power. It contains strong silver hydroxide and becomes alkaline ionized water with excellent sterilization efficiency. Further, the water discharged from the anode chamber of the electrolytic cell also contains a large amount of silver oxide and silver chloride, and becomes acid water with enhanced sterilization.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. Reference numeral 1 is an electrolytic cell for electrolyzing water to separate and generate alkaline water and acidic water. This electrolytic cell 1 has a negative electrode 2 arranged oppositely.
The cathode 4 and the anode 3 are divided by a diaphragm 4 for electrolysis into a cathode chamber 5 and an anode chamber 6, and a water supply pipe 7 for supplying raw water such as tap water is connected to one side and the other side. An alkaline water discharge pipe 8 communicating with the cathode chamber 5 and an acidic water drainage pipe 9 communicating with the anode chamber 6 are connected to the.

Thus, the electrolytic cell 1 applies a direct current voltage to the negative electrode 5 and the positive electrode 6 while passing the raw water introduced from the water supply pipe 7 through the two electrode chambers 2 and 3, whereby the alkaline water and the acidic water are acidified. The water is electrolyzed into water, and the generated alkaline water and acidic water are separately discharged from a pair of drain pipes 8 and 9.

Water passage and stoppage of water passage to the electrolytic cell 1 are controlled by valves (not shown) provided in the water supply pipe 2 or the pair of drain pipes 8 and 9, and the electrode 2 of the electrolytic cell 1 is also controlled. , 3 is turned on by the open / close signal of the valve.
-OFF control.

In such an electrolytic water conditioning apparatus, a feature of the present invention is that a silver electrolysis apparatus 10 is interposed in the water supply side pipeline 7 of the electrolytic cell 1 to elute silver ions in the raw water passing through the water supply side pipeline 7. After that, electrolysis is performed.

The silver electrolysis device 10 comprises a silver positive electrode 12a and a negative electrode 12b such as stainless steel which are opposed to each other in a casing 11 which communicates with the water supply pipe 7, and both electrodes 12a, 12b.
By applying a DC voltage to, the silver ion is eluted in the raw water passing through the casing 11.

A part of the eluted silver ions is combined with oxygen, chlorine, etc. in water to form silver oxide (AgO) or silver chloride (AgCl).
Etc. Thus, water containing silver ions, silver oxide, and silver chloride is introduced into the electrolytic cell for electrolysis. In this case, since the hydroxyl group (OH) is liberated in the form of ions in the cathode chamber of the electrolytic cell by electrolysis, silver hydroxide (AgO
H) is generated, and the sterilizing power is remarkably enhanced, and a large amount of silver oxide and silver chloride is generated in the acidic water in the anode chamber, which imparts sterilizing property. Incidentally, silver hydroxide has a much stronger bactericidal activity than silver chloride and silver oxide.

In the anode chamber 6 of the electrolytic cell 1, acidic water having bactericidal property is generated, and since this acidic water is not used for drinking, there is not much problem with propagation of various bacteria. On the other hand, the alkaline water in the cathode chamber 5 is used for drinking and is usually inferior in bactericidal property to acidic water. Therefore, it is mainly the water in the cathode chamber 5 that requires measures against various bacteria, but in the present invention, since silver hydroxide having a strong sterilizing power is generated in the water in the cathode chamber 5 as described above, the water stays due to the suspension of water flow. Even so, the possibility that bacteria will propagate is greatly reduced.

It should be noted that the alkaline water discharged from the electrolytic cell 1 during the generation of electrolytic water contains silver hydroxide for the above reason, so that drinking alkaline water rich in sterilization can be obtained and the acidic water can be obtained. Since contains a large amount of silver chloride and silver oxide, it has higher bactericidal properties than conventional ones.

It is well known that by elution of silver ions in water, oxygen, chlorine and silver ions in water are combined to form silver oxide and silver chloride, and bactericidal properties are obtained.
The amount of silver compound produced is limited only by elution of silver ions in ordinary water, and the bactericidal power has its own limit.

On the other hand, according to the present invention, by dissolving silver ions in the raw water introduced into the electrolytic cell and electrolyzing them, hydroxide ions, oxygen ions and chlorine ions ionized in the electrolyzed water are efficiently combined with the silver ions. In this way, a large amount of silver hydroxide, silver oxide and silver chloride having a strong bactericidal activity is produced, whereby the bactericidal activity is remarkably improved.

The electrolytic cell 1 shown in the figure is an example, and the present invention is not limited to this. For example, an electrolytic cell may be used in which both electrodes are made of a material that can withstand both the cathode and the anode and the polarity is switched every predetermined time so that electrolysis can be performed. Of course, in this case, a flow path switching valve is used for the pair of drain pipes 8 and 9.

[0018]

According to the present invention, silver ions are dissolved in raw water to perform electrolytic water conditioning. Therefore, silver hydroxide-containing alkaline water having a strong sterilizing power is produced in the cathode chamber of the electrolytic cell, and silver oxide is contained in the cathode chamber. Acidic water containing silver chloride is produced. Therefore, even if water stays in the electrolytic cell, there is no possibility that various bacteria will propagate, which is hygienic.

For the same reason, alkaline water and acidic water having a high bactericidal property can be obtained in electrolytically prepared water.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an electrolytic water conditioning apparatus according to an embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Electrolyte tank, 2 ... Cathode electrode, 3 ... Positive electrode, 4 ... Electrolyte diaphragm, 5 ... Cathode chamber, 6 ... Anode chamber, 7 ... Water supply pipe, 8
… Alkaline water drain pipe, 9… Acid water drain pipe, 10… Silver electrolysis device, 11… Casing, 12a… Gin positive electrode,
12b ... Cathode electrode.

Claims (1)

[Claims] 1. A continuous electrolytic water conditioning apparatus in which water introduced from a water supply pipe is electrolyzed into alkaline water and acidic water in an electrolytic cell, and the generated alkaline water and acidic water are separately discharged from a pair of drain pipes. In the continuous electrolytic water conditioning apparatus, a water electrolysis apparatus for eluting silver ions in water by applying a voltage is interposed in the water supply side pipeline of the electrolytic cell.