JPH079490U - Alkaline electrolyzed water generator containing silver hydroxide - Google Patents

Abstract

(57) [Summary] [Purpose] While pointing to precipitates such as calcium,
Silver ions are quantitatively eluted in alkaline ionized water. [Structure] In the alkaline water passage of the diaphragm electrolyzed water generator,
It is characterized in that a non-diaphragm electrolysis means is provided in which both opposing electrodes are composed of silver electrodes.

Description

[Detailed description of the device]

[0001]

[Field of use of the device]

 The present invention relates to improvement of an alkaline electrolyzed water generating apparatus containing silver hydroxide having excellent bactericidal properties.

[0002]

[Prior art]

 A silver electrolyzer that elutes silver ions is installed in the alkaline water passage of the diaphragm electrolyzer to generate silver hydroxide in water by combining silver ions with the hydroxide ions of electrolyzed alkaline water. Developed a water generator and applied for a patent as Japanese Patent Application No. 3-201468. In this case, it is pointed out in the specification of the above-mentioned patent application that the polarity of the silver electrolysis device is reversed and the protrusions such as calcium are subjected to reverse electrowashing.

[0003]

[Problems to be solved by the device]

 In the silver electrolysis apparatus of the above-described apparatus for producing silver hydroxide-containing alkaline electrolyzed water, only the anode is the silver electrode, and the cathode is made of stainless steel, iron, copper, titanium, or the like. For this reason, calcium is dissolved by reversing the polarity of the voltage applied to the silver electrolysis device and performing reverse electrolysis cleaning, but since the silver electrode is converted to the cathode, silver ions are not eluted during reverse electrolysis. Absent. Therefore, it was impossible to constantly and quantitatively elute silver ions in alkaline water.

[0004] The purpose of the present invention is to dissolve calcium ions and other impurities by polarity reversal of the electrodes of a silver electrolysis device, and to constantly elute silver ions regardless of polarity reversal. An object is to provide a silver hydroxide-containing alkaline electrolyzed water generator capable of quantitatively eluting water.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides an alkaline electrolyzed water generator in which a silver electrolyzer for eluting silver ions is provided in an alkaline water passage of a diaphragm electrolyzer. It is characterized in that both opposing electrodes of the silver electrolysis device are composed of silver electrodes, and a reverse voltage control device for switching the polarity of the electrolytic voltage applied to both silver electrodes is provided.

[0006]

[Action]

 In the silver electrolysis device, silver ions are eluted from the silver positive electrode by the application of an electrolysis voltage and combine with the hydroxide ions of alkaline water to form silver hydroxide having excellent bactericidal activity in water. In this case, since both electrodes of the silver electrolysis device of the present invention are composed of silver electrodes, the electrode to which + voltage is applied even if the polarity of both electrodes is changed, that is, the electrode which becomes the anode is always Since it is a silver electrode, silver ions are always generated quantitatively even if the electrode is reversed.

[0007]

[Example of device]

 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Reference numeral 1 denotes an electrolytic cell for electrolyzing water. In this electrolytic cell 1, an anode 2 and a cathode 3 are arranged so as to face each other, and both electrodes 2 and 3 are partitioned by an electrolytic diaphragm 4 into an anode chamber 5 and a cathode chamber 6. It constitutes a diaphragm type electrolytic cell. A water supply line 7 for supplying raw water such as tap water is connected to one side of the electrolytic cell 1 (lower part in the figure), and the other side of the electrolytic cell 1 communicates with an anode chamber 2. The acidic water drainage pipe 8 and the alkaline water discharge pipe 9 communicating with the cathode chamber 3 are separately provided. In addition, 16 is a water purifier provided in the water supply pipeline 7 as needed.

Thus, FIG. 1 shows that the raw water introduced from the water supply line 7 is electrolyzed in the electrolytic cell 1 and the acidic water generated in the anode chamber 5 is discharged from the acidic water discharge line 8 and the negative electrode chamber 5 is discharged. 6 shows a continuous water flow type electrolytic ion water regulation device in which the alkaline ionized water generated in 6 is drained from the alkaline water discharge conduit 9 and used for drinking or the like.

A mineral chemical solution such as calcium is added to the raw water in the water supply pipe 7 or the electrolytic cell 1 as needed. In addition, this type of electrolytic water conditioning device cleans calcium that has broken off from alkaline water by reverse electrolysis, so that when electrolytic water conditioning is performed for a predetermined time, the polarity of the electrodes is reversed and reverse electrolysis cleaning is performed for a predetermined time. You may do it. In addition, the electrolytic cell 1 includes, of course, a cylindrical type.

As described above, according to the present invention, a silver electrolysis device having both electrodes made of silver electrodes is provided in an alkaline water passage of an electrolytic water conditioning device that electrolyzes water to separate it into alkaline water and acidic water. It is in.

The “alkaline water passage” here means not only the alkaline water discharge conduit 9 but also the cathode chamber 3 of the electrolytic cell 1 or the alkaline water storage tank at the tip of the alkaline water discharge conduit 9 (not shown). ), Etc. means all the existing regions of alkaline water produced by the electrolytic water conditioning system.

The term “silver electrode” as used herein means all electrodes made of silver or a metal containing silver and capable of eluting silver ions in water when a positive voltage is applied.

In the embodiment shown in FIG. 1, a non-diaphragm silver electrolysis device 10 is provided in the alkaline water discharge conduit 9 of the electrolytic cell 1. The non-diaphragm silver electrolysis device 10 has a pair of silver electrodes 11 and 12 arranged to face each other, and a positive electrolysis voltage is applied to one electrode and a negative electrolysis voltage is applied to the other electrode. There is.

In the figure, reference numeral 18 is an electric control section for controlling the silver electrolysis apparatus 10. The electric control section 18 controls ON / OFF of voltage application between the silver electrodes 11 and 12 of the silver electrolysis apparatus 10. In addition to having an ON / OFF control circuit for turning on and off, a reverse charge control device for reversing the polarity of the voltage applied to the electrodes of the silver electrolysis device 10 at predetermined intervals is provided. It is designed to be reversed every time.

Next, the operation of the present invention will be described. Since the pH of the alkaline water produced by the electrolytic cell 1 is 8 or more, a diaphragmless silver electrolysis device 10 is installed in the alkaline water passage 9 and a DC voltage is applied to both silver electrodes 11 and 12 of the device. By electrolysis, silver ions are eluted from the silver electrode 11 on the anode side into alkaline water. This silver ion reacts with hydroxide ion in alkaline water to produce a large amount of silver hydroxide AgOH in alkaline water. Since silver hydroxide has a stronger bactericidal activity than silver chloride and silver oxide, a very small amount of silver hydroxide provides effective bactericidal and bactericidal activity to alkaline water.

When the polarities of the electrodes 11 and 12 of the silver electrolysis device 10 are reversed, the calcium and the like adhering to the silver electrode 12 are dissolved by anodization, washed and converted from the silver electrode 12 converted into the anode Silver ions are eluted in water. In this way, according to the present invention, it is possible to quantitatively generate silver ions while attempting to remove the precipitated calcium.

Reference numeral 13 in the drawing denotes a water inflow detection switch such as a flow switch or a pressure switch that detects the flow of water into the electrolytic cell 1 and outputs a flow signal. Generally, this switch device is used to control electrolysis of the electrolytic cell. Used as a switch. Although not shown in the figure, when such a switch is not provided, the operation of the electrolytic cell is controlled by the inflow control signal of the operation switch of the electric valve that controls the inflow of water into the electrolytic cell. When the inflow detection switch 13 and the flow control switch (not shown) are provided in the electrolyzed water generating apparatus as described above, it is preferable that the silver electrolysis apparatus 10 is controlled to be turned on and off by an ON / OFF signal of these switching apparatuses. To In the illustrated embodiment, the inflow detection switch 13 is installed in the alkaline water conduit 9, but the invention is not limited to this structure, and the inflow detection switch 13 may be provided in the water supply conduit 7. Good.

FIG. 2 shows that the silver electrolysis device 10 and the switch 13 are integrated by incorporating the diaphragmless silver electrolysis device 10 into an inflow / outflow switch 13 such as a flow switch or a pressure switch provided in the drainage pipe 9 of alkaline water. FIG. 3 shows the internal structure of the flow switch (13) according to this embodiment, particularly the arrangement of the silver electrolysis device 10.

As shown in FIG. 3, the silver electrolysis means 10 is assembled in a form in which the silver electrode 11 and the negative electrode 12 are arranged to face each other in the alkaline water passage 14 of the flow switch (13). It is more preferable to install the same silver electrolysis device 10 in the diaphragm chamber 15 above the alkaline water passage. The reason is that the diaphragm chamber 15 and the alkaline water passage 14 communicate with each other through the passage 17 formed in the axial center of the valve body 16, but the amount of movement of water is small, so that the water in the diaphragm chamber 15 tends to accumulate and various bacteria are accumulated. This is because the environment is apt to occur.

[0019]

【effect】

 The present invention dissolves calcium by reversing the polarity of the electrodes of the silver electrolysis device, and silver ions are quantitatively eluted into alkaline water during reverse electrolysis, which facilitates the control of silver hydroxide concentration and provides high quality. Sterilizing alkaline electrolyzed water can be supplied.

[Brief description of drawings]

FIG. 1 is a schematic view of the essential parts of an electrolyzed water generator according to the present invention.

FIG. 2 is a view corresponding to FIG. 1 showing another embodiment of the present invention.

FIG. 3 is an enlarged cross-sectional view of the main part of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Electrolyte tank, 4 ... Electrolyte diaphragm, 5 ... Anode room, 6 ... Cathode room, 7 ... Water supply line, 8 ... Acidic water drainage line, 9 ...
Alkaline water drainage pipe, 10 ... No diaphragm silver electrolysis device, 1
DESCRIPTION OF SYMBOLS 1 ... Silver anode, 12 ... Cathode, 13 ... Flow detection switch, 15 ... Diaphragm chamber, 17 ... Passage, 18 ...
Control unit.

Claims (1)

[Scope of utility model registration request] 1. In an alkaline electrolyzed water producing apparatus in which a silver electrolysis apparatus for eluting silver ions is provided in an alkaline water passage of a diaphragm electrolysis water preparation apparatus, both electrodes facing each other of the silver electrolysis apparatus are composed of silver electrodes. A silver hydroxide-containing alkaline electrolyzed water generator characterized by being provided with a reverse voltage control device for switching the polarity of electrolysis voltage applied to both silver electrodes