JPH07115016B2 - Sterilizing electrolytic ionized water generator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention sterilizes water by electrolyzing it into alkaline ionized water and acidic ionized water, and imparts sterilizing power by silver ions to all or part of the generated electrolytic ionized water. The present invention relates to a sex electrolytic ion generator.

[Problems to be solved by the invention]

Water is supplied to an electrolytic cell where the cathode chamber and the anode chamber are separated by an electrolytic diaphragm, and a DC voltage is applied to the electrode side of both electrode chambers to separately generate alkaline ionized water and acidic ionized water. There is an electrolytic ion water conditioner. Although the water generated from this device is ion-activated, it has a problem that it is easily decomposed because its bactericidal power is not sufficient.

Incidentally, as shown in JP-A-60-97088, there is one in which silver is used for the positive electrode of the above-mentioned electrolysis apparatus, but this one uses a silver anode as the positive electrode itself for electrolysis, so that it is more than necessary. It wastes silver and is extremely uneconomical.

On the other hand, it is known that the alkaline water generated by the electrolytic water conditioner is sterilized by a silver ion generator, but this electrolyzes silver in alkaline water, so that silver is difficult to ionize. Therefore, although the silver ion concentration does not increase, germs in the alkaline water are killed by sterilization, but the alkaline water itself does not become sterilizing water.

Therefore, an object of the present invention is to provide an apparatus which is inexpensive and produces bactericidal electrolytic ion water having a high silver ion concentration.

Another object of the present invention is to provide a sterilizing electrolytic ion water generator in which oxide scale does not adhere to the silver anode of the sterilizing silver ion generator.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention provides electroosmosis of an anode chamber provided with a silver positive electrode and a cathode chamber provided with a negative electrode on the downstream side of the electrolytic ionizer, that is, on the produced ion water outlet side. A silver ion generator partitioned by a diaphragm is provided, and the acidic water outlet of the electrolytic ion water conditioner is connected to the electrode chamber of the silver ion generator via a water channel.

In this way, when the acidic water produced by the electrolytic ion water conditioner is electrolyzed using silver as the anode, silver ions are well dissolved in the electrolytic acidic water, and bactericidal electrolytic ion water having a high silver ion concentration is obtained.

Example of Invention

 Embodiments of the present invention will be described below with reference to the drawings.

In the figure, 1 is a known continuous electrolytic ion water generator, and although the internal structure is omitted, this type of field ion water generator generally has an anode chamber 1b having a positive electrode 1a and a negative electrode 1c.
The cathode chamber 1d in which is placed is partitioned by the diaphragm 1e for electrolysis, and a DC voltage is applied to both electrodes to electrolyze and electrolyze the raw water (well water, tap water, etc.) introduced into the electrode chamber of the device 1 from the supply water circuit 2. The alkaline ionized water is discharged from the outlet 3 of the cathode chamber, and the acidic ionized water is discharged from the outlet 4 of the anode chamber.

Reference numeral 5 denotes a silver ion generator disposed on the downstream side of the electrolytic ionized water generator, that is, on the ionized water outlet side. As shown in FIG. A sterilization tank 8 having a negative electrode 7 made of stainless steel or the like arranged oppositely is divided into an anode chamber 10 and a cathode chamber 11 by an electroosmotic diaphragm 9, and water supply ports 10a, 11a and outlets are provided above and below the anode chamber 10 and the cathode chamber 11, respectively. 10b and 11b are provided corresponding to each other, and a positive DC voltage is applied to the positive electrode 6 and a negative DC voltage is applied to the negative electrode 7, respectively, so that silver passing through the anode chamber 10 and the cathode chamber 11 can be sterilized with silver. It is designed to give ions.

In the figure, reference numeral 12 is a support member for holding the diaphragm 9 at a predetermined partitioning position, and is used as a reinforcing member particularly when the diaphragm is thin like a film. In the illustrated embodiment, a cylindrical outer frame is a negative electrode 7 made of stainless steel or the like, a bar-shaped or cylindrical silver positive electrode 6 is arranged in the center thereof, and a space between the electrodes 7 and 8 is partitioned by a cylindrical diaphragm 9. In contrast to this, the inner wall of the outer frame may be used as a silver electrode, and a negative electrode made of stainless steel or the like may be disposed opposite to the center of the outer wall to replace the anode chamber and the cathode chamber. Further, the silver ion generator of the present invention is not limited to a cylindrical shape as shown in the figure, and in short, may be a flat plate shape or any other shape as long as both electrode sides are divided into an anode chamber and a cathode chamber by an electroosmotic diaphragm. .

Thus, in the device of the present invention, either one of the alkaline water outlet 3 and the acidic water outlet 4 of the electrolytic ion water generator 1 (hereinafter referred to as an electrolyzer) is used as the electrode chamber of the silver ion generator 2 having the above-mentioned configuration. It is connected through a water channel 13.

The embodiment shown in FIG. 1 shows a case where the acidic water outlet 4 of the electrolyzer 1 is connected to the anode chamber 10 and the cathode chamber 11 of the silver ion generator 5 via a water passage 13.

Although not directly related to the claimed invention,
FIG. 2 shows an embodiment in which the alkaline water outlet 3 of the electrolyzer 1 is connected to the anode chamber 10 and the cathode chamber 11 of the silver ion generator 5 via a water passage 13.

The embodiment of FIG. 1 is an embodiment in which the acidic water of the electrolyzer 1 is separately introduced into both the anode chamber 10 and the cathode chamber 11 of the silver ion generator 5, but the present invention is not limited to this, and the acidic water is not limited to this. Is introduced into one of the anode chamber 10 or the cathode chamber 11 of the silver ion generator 5, and well water, tap water or other system W other than the electrolyzer is provided in the other electrode chamber.
Including the case of passing water. As an example of this, in the embodiment shown in FIG. 3, the acidic water generated from the electrolyzer 1 is passed through the anode chamber 10 of the silver ion generator 5 and well water is passed through the cathode chamber 11 to sterilize the silver ions. The case of performing is illustrated. As a modified example, acidic water may be passed through the cathode chamber 11 and well water or the like may be passed through the anode chamber 10. Further, instead of the acidic water, the alkaline water side may be connected as in the embodiment of FIG. 3 and its modification. In either case, the water of the system W discharged from the silver ion generator 5 may be discarded as it is or returned to the electrolyzed water generating circuit.

The embodiment shown in FIG. 4 is a combination of the embodiments shown in FIGS. 1 and 2, wherein two ion-killing devices are used for one electrolyzer 1 and acidic water is used as the first silver ion. Introduced into the generator 5-1 and adding alkaline ionized water to the second silver ion generator 5-
It is designed to be introduced in 2.

Next, the operation of the present invention will be described with reference to FIG.

Reference numeral 15 is a source of raw water such as well water supplied to the electrolyzer 1. The raw water introduced into the electrolyzer 1 from the water supply pipe 2 is distributed to the cathode chamber and the anode chamber of the electrolyzer 1, and a direct current is supplied between both electrodes. While being electrolyzed by applying a high voltage, ion exchange is performed by the electrolysis diaphragm, alkaline ionized water is generated in the cathode chamber, and acidic water is generated in the anode chamber.

The acidic ionized water discharged from the electrolyzer 1 is separately sent to the anode chamber 10 and the cathode chamber 11 of the silver ion generator 5 via the water channel 13. In this state, by applying a DC voltage between the silver positive electrode 6 and the negative electrode 7, silver ions are added to the ion water in the electrode chamber.
Ag ⁺ elutes, and a part thereof penetrates the cathode chamber 11 side through the diaphragm 9. Therefore, acidic water that has been sterilized and has a sterilizing power is individually generated from the silver ion generator 5.

The alkaline ionized water of the electrolyzer 1 is taken out from the outlet 3,
It is derived by the extraction circuit A described later.

It is desirable that the positive electrode 6 and the negative electrode 7 of the silver ion generator 5 are as close to each other as possible in order to reduce the electric resistance when energized and to efficiently generate silver ions.

In the illustrated embodiment, one silver ion generator is connected to one electrolyzer, but one silver ion generator can be connected to a plurality of electrolyzers. It is included in the scope of the present invention.

In the figure, A is a water discharge circuit generated by the sterilized ionized water generator, and this circuit A has the following configuration in the embodiment of FIG. That is, an acidic water intake circuit a leading to an acidic water intake valve 18a is connected to the outlet 10b of the silver ion generator 5 via a flow switch 16a and a switching motor valve 17a on the downstream side thereof, and the electrolyzer 1
An alkaline water intake circuit b leading to an alkaline water intake valve 18b is connected to the alkaline water intake port 3 via a flow switch 16b and a switching motor valve 17b on the downstream side thereof.

Further, an acid water drainage circuit a ′ reaching a drainage section 21 is connected to a flow switch 16a upstream pipe of the acid water intake circuit a through an electric opening / closing valve 19a such as a solenoid valve, and the alkaline water intake Similarly to the flow switch 16b upstream side pipe of the circuit b, an alkaline water drainage circuit b ′ leading to the drainage section 21 is connected via an electric opening / closing valve 19b such as a solenoid valve. The acidic water drainage circuit a'and the alkaline water drainage circuit b'may share the downstream side of the electric on-off valves 19a and 19b as shown in the drawing, and may be connected by a common pipe. These drainage circuits a ′ and b ′ communicate with the drainage section 21 via the upper part of the storage tank 20 for cleaning.

Further, each of the acidic water intake circuit a and the alkaline water supply circuit b is provided with a respective switching motor valve, and the electric open / close valves 19a and 19a of the acidic water drain circuit a'or the alkaline water drain circuit b'from 17a and 17b.
Cleaning water recovery circuits c, c connected to the downstream side of b are connected.

The electric open / close valve 19a of the acidic water drainage circuit a'is a circuit a'when the flow switch 16b of the alkaline water intake circuit b is activated.
Open, and when the flow switch 16a of the acidic water intake circuit a activates water flow, the flow switch 16a of the alkaline water intake circuit b
The electric circuit is configured to close the circuit a'regardless of the operation of the. Similarly, the electrically operated on-off valve 19b of the alkaline water drainage circuit b'opens the circuit b'when the flow switch 16a of the acidic water intake circuit a operates to pass water, while the flow switch 16b of the alkaline water intake circuit b passes water. When activated, the electrical circuit is configured to close the circuit b'regardless of the operation of the flow switch 16a of the acidic water intake circuit a.

B is a cleaning water supply circuit connected to the water supply port of the electrolysis machine 1 from the lower part of the storage tank 20 through the motor 22 and the check valve 23 provided on the downstream side thereof. This circuit B is a storage tank 20
The wash water is taken out from the lower part of the.

As described above, according to the present invention, the silver ion generator 5 having the above structure is provided in the electrolyzer 1 to generate the sterilized electrolytic ionic water. And the cleaning action of the apparatus will be described.

First, during normal use, the switching motor valves 17a and 17b of the respective water supply circuits a and b for alkaline water and acidic water are open to the intake valve side of each circuit. Therefore, when only alkaline water is used, when the intake valve 18b of the alkaline water supply circuit b is opened and water is allowed to flow, the flow switch 16b operates to close the electric open / close valve 19b of the alkaline water drainage circuit b ', and at the same time, acid The electric open / close valve 19a of the water drainage circuit a'opens.

Therefore, at the same time as the alkaline water is taken in from the water supply port, the acidic water enters the washing tank 20 through the drainage circuit a'and overflow water from the upper part of the tank 20 to the drainage section.
Drain through 21.

Similarly, when only acidic water is used, when the intake valve 18a of the acidic water circuit a is opened and water is passed, the flow switch 16a operates to close the electrically operated on-off valve 19a of the acidic water drainage circuit a'and at the same time the alkaline water is discharged. The electrically operated on-off valve 19b of the water intake circuit b'opens.
Therefore, at the same time the acidic water is taken from its intake,
The alkaline water enters the washing tank 20 through the drainage circuit b ', and as the overflow water, it flows from the upper part of the tank 20 to the drainage section.
Drain through 21.

When using alkaline water and acidic water at the same time, intake circuit a,
Open the intake valves 18a, 18b of b and pass water to flow switch 16
Motorized on-off valve 1 for both drainage circuits a ', b'when a, 16b are activated
Both 9a and 19b are closed, and alkaline water and acidic water are simultaneously taken from the water inlet without waste.

Next, at the time of cleaning, the switching motor valves 17a and 17b between the acidic water intake circuit a and the alkaline water intake circuit b are opened to the drainage circuit C side, and the electric opening / closing valve 2'of the supply circuit 2 is closed to wash the cleaning water. The motor 22 of the supply circuit B is operated. The valve 2'may be linked with the motor 22. Reference numeral 24 is a pipe for supplying the cleaning agent 26 to the storage tank 20 via the motor 25, etc., and the cleaning water in the storage tank 20 mixed with the cleaning agent is pressure-fed by the motor 22, and the electrolysis machine 1 and the silver ion generator 5
, Drainage circuits a ′, b ′ from the respective intake circuits a, b of the alkaline water and the acidic water via the switching valves 17 a, 17 b, and are circulated to the storage tank 20. The washing is repeated by repeating this. Gas generated during cleaning is discharged from the upper part of the storage tank 20 to the drainage section 21 via the drainage circuit. When the cleaning with the cleaning water is completed, the motor 22 is stopped and the on-off valve 2'of the supply circuit 2 is opened, and the water supply source 15 is used to operate
15 and the circuit is washed with water.

〔The invention's effect〕

In general, silver is difficult to be ionized in a solution having a pH of around neutral, and thus it is difficult to dissolve in a solution.However, since the present invention imparts silver ions to acidic water generated by electrolysis, it has a low pH and is active by electrolysis. Due to the fact that it has been converted, silver ionizes and dissolves well. Therefore, a high concentration of silver ion water, which cannot be obtained when ordinary water or alkaline water is subjected to silver electrolysis, can be generated.

Further, since the silver ion generator is used only for imparting sterilizing power, it consumes less silver anode and is considerably economical as compared with the one using silver for the positive electrode of the electrolysis device itself.

Further, when the acidic water generated by the electrolyzer is passed through the silver anode chamber of the silver ion generator, the oxide film is prevented from adhering to the silver positive electrode, and an efficient sterilizing action is obtained.

[Brief description of drawings]

FIG. 1 is a flow chart showing an embodiment of the device of the present invention,
FIG. 2 is a flow chart of the second embodiment of the present invention, FIG. 3 is a flow chart of the third embodiment of the present invention, FIG. 4 is a flow chart of the fourth embodiment of the present invention, and FIG. 5 is a silver ion generator. FIG. DESCRIPTION OF SYMBOLS 1 ... Electrolytic ion water conditioner, 5 ... Silver ion generator, 6 ... Silver positive electrode, 7 ... Negative electrode, 8 ... Sterilization treatment tank, 9 ... Electroosmosis membrane, 10 ... Anode chamber, 11 ... Cathode chamber, 16a, 16b ... Flow switch, 17a, 17b ... Switching motor valve, 18a, 18b ... Water supply valve, 19
a, 19b ... Electric open / close valve, 20 ... Storage tank, 26 ... Cleaning agent, A
... Take-out circuit, B ... Wash water supply circuit, a, b ... Water supply circuit,
a ', b' ... Drainage circuit.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location C02F 1/50 T 540 C 550 B D H L 560 F

Claims (3)

[Claims] 1. An electrolytic ionic water conditioner for electrolyzing water to separately generate alkaline ionized water and acidic ionized water, a cathode chamber provided with a negative electrode and an anode chamber provided with a silver anode chamber are electroosmotic diaphragms. A sterilizing electrolytic ionized water producing device comprising a partitioned silver ion producing device, wherein the acidic water outlet of the electrolytic ionized water conditioner is connected to the electrode chamber of the silver ion producing device via a water channel. 2. The bactericidal electrolytic ion water according to claim 1, wherein the acidic water outlet of the electrolytic ion water conditioner is connected to the silver anode side of the silver ion generator through a water channel. Generator 3. An acidic water outlet of an electrolytic ion water conditioner is connected to a silver anode side of a silver ion generator via a water channel, and an electrolytic ion water conditioner outside the system is connected to the cathode side of the silver ion generator. A sterilizing electrolytic ion water generator according to claim 1, characterized in that a water supply port for connecting a water circuit is provided.