JPH05317861A - Water treating device using water purifying device - Google Patents

Abstract

PURPOSE:To enable the pasteurization and sterilization of a water purifying device by providing the water purifying device with a silver electrolyzing part and interposing a calcium hydroxide replenishing tank in a circulating path formed in the upstream side pipeline of the water purifying device, thereby circulating the water into the water purifying device by closing a discharge faucet. CONSTITUTION:The silver electrolyzing part 4 which is disposed with a silver anode electrode 4a and a cathode electrode 4b consisting of a stainless steel, etc., so as to face each other and elutes silver ions, etc., in water by the applying of a DC voltage is provided on the water feed side of the water purifying device 2. The circulating path 7 which is branched from the downstream side pipeline 1ba via a three-way selector valve 6b and is connected to the upstream side pipeline 1a via a three-way selector valve 6a is formed between the upstream side pipeline 1a and downstream side pipeline 1b of the water purifying device 2. The replenishing tank 9 housing the hydroxide, such as calcium hydroxide, is interposed in the circulating path 7 and the hydroxide is supplied to the water passing the circulating path 7. As a result, the water purifying device, electrolytic cell, etc., of the water circuit are sterilized and cleaned with the water contg. silver hydroxide and having a high sterilizing power in the state of closing a faucet.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water treatment device provided with a water purifier in a pipeline, and more particularly to improvement of the water treatment device provided with silver ion elution means in the water purifier.

[0002]

2. Description of the Related Art A water treatment device such as a water purification device for draining water supplied from a water supply pipe through a water purifier or an electrolytic water generation device for further electrolyzing purified water to prepare alkaline ionized water or acidic water is known. Has been.

[0003]

In such a water treatment device, if the drain faucet on the downstream side of the water purifier is kept closed for a long period of time, the accumulated water in the water purifier will deteriorate and various bacteria will propagate. Easier to do.

A first object of the present invention is to allow water to circulate through the water purifier even if the drain faucet is closed, and
The circulation channel is equipped with a chemical replenishment tank that enhances the silver sterilization effect,
Accordingly, it is to provide a water treatment device capable of sterilizing and sterilizing a water purifier.

When the chemical solution replenishing tank is filled with an additive such as calcium hydroxide, a non-water-soluble substance such as calcium hydroxide adheres to the surface of the additive to hinder the replenishment of the additive. In order to prevent this, a second object of the present invention is to provide the above-mentioned water treatment device in which an insoluble substance is unlikely to adhere to the additive.

[0006]

To achieve the above object, a feature of the present invention is that in a water treatment device using a water circuit having a water purifier, a voltage is applied to the water purifier to elute silver ions. In addition to providing a silver electrolysis section that allows the water to flow from the downstream pipe of the water purifier to the upstream pipe of the water purifier via the three-way switching valve, a circulation path for selectively feeding back water is formed. This is because a tank for replenishing hydroxides such as calcium is provided.

[0007] The downstream side pipe line of the water purifier is connected to a water supply port of an electrolyzer for electrolyzing water to discharge alkaline water and acidic water,
A circulation passage for selectively feeding back water is formed from the alkaline water drainage pipe of the electrolytic cell to the downstream pipe of the water purifier through the three-way switching valve, and a hydroxide such as calcium hydroxide is formed in the circulation passage. The replenishment tank may be interposed.
In this case, more preferably, the electrolysis stop time of the electrolytic cell is integrated, and when the set integration time is reached, the three-way switching valve is automatically controlled so as to open the feedback circulation path.

For the second purpose of the present invention, the hydroxide replenishing tank of the water treatment apparatus is provided with a vibrating means and a stirring means. This replenishment tank has an expandable and contractible bellows portion on a part of the side circumference of the replenishment tank body, whereby the replenishment tank body is fixed to a support column and a movable portion vibrated by an external drive mechanism. It is desirable that the structure is divided into.

[0009]

[Function] When a DC voltage is applied to the electrode of the silver electrolysis part of the water purifier by operating the three-way switching valve so that the water introduced from the water supply port flows through the water purifier and from the drain faucet, the water is sterilized by the eluted silver ions. The water that has been given power and purified by the water purifier is taken out from the drain faucet. When an electrolytic cell is provided on the downstream side of the water purifier, the purified water is prepared into alkaline ionized water and acidic water, and when alkaline water is used, for example, sterilized alkaline ionized water is taken out from the tap. On the other hand, when the three-way switching valve is switched so that the water is fed back from the pipe line on the downstream side of the water purifier to the upstream side of the water purifier, the water circulates through the pipe line returning from the downstream side of the water purifier to the upstream side. At this time, hydroxyl group OH is dissolved in water in the process of passing through a supply tank of hydroxide such as calcium hydroxide provided in the circulation path, and combined with silver ions eluted by electrolysis of the silver electrode of the water purifier to have bactericidal power in water. AgOH having a high strength is produced. The water having the enhanced sterilizing power circulates in the water purifier to sterilize and clean the inside of the water purifier. After sterilization and washing for a predetermined time, the circulating water is discharged to the drain through a switching valve in front of the drain faucet.

In a device for feeding back water from the alkaline water drainage pipe of the electrolytic cell to the downstream side of the water purifier, the water purifier and the electrolytic cell are sterilized by closing and circulating the acidic water drainage pipe of the electrolytic cell. Sterilized and washed by water with enhanced strength. The three-way switching valve is automatically controlled to open the circulation path by the integrated signal of the electrolysis stop time of the electrolytic cell.

By providing the replenishing tank with a vibrating means, a stirring means, etc., the water-insoluble substance formed on the surface of the additive is shaken off. Since the replenishment tank is divided into the fixed part and the movable part by the expandable and contractible bellows, the replenishment tank can be vibrated in the whole tank by being driven from the outside while the position is fixed.

[0012]

FIG. 1 shows an embodiment of the present invention in which a water purifier 2 is provided in a water circuit 1 from a water supply port to a drain port, and an opening / closing valve 3 such as a faucet is provided on the drain port side. ing. On the water supply side of the water purifier 2, a silver positive electrode 4a and a negative electrode 4b made of stainless steel or the like are disposed so as to face each other, and a silver electrolysis unit 4 that elutes silver ions in water by applying a DC voltage is provided.

The upstream side pipeline 1a and the downstream side pipeline 1 of the water purifier 2
Between b, a circulation path 7 is formed which branches from the downstream side pipeline 1b via a three-way switching valve 6b and is connected to the upstream side pipeline 1a via a three-way switching valve 6a. Thus, by operating the three-way switching valves 6a and 6b so that the circulation path 7 is opened, water is selectively supplied from the downstream side pipeline 1b of the water purifier 2 to the upstream side pipeline 1a by the feeding means such as the pump 8. It is fed back and circulated through the water purifier 2.

A supply tank 9 containing a hydroxide such as calcium hydroxide is interposed in the circulation path 7 so that the hydroxide is supplied to the water passing through the circulation path 7.

A drain pipe 11 is provided from the water purifier downstream side pipe line 1b to divert water to the drain via another three-way switching valve 10.

When the open / close valve 3 is opened with the three-way switching valves 6a, 6b, 10 open to the faucet 3 side, the water supplied from the water supply port is eluted with silver ions in the silver electrolysis section 4 of the water purifier 2. And AgCl combined with chlorine or oxygen in water
1, sterilized by silver oxide AgO, purified by the water purifier 2 and discharged through the on-off valve 3.

On the other hand, when the three-way switching valves 6a and 6b are switched so that the circulation path 7 communicates with the water circuit 1, the water in the water circuit is fed back to the downstream side through the upstream circulation path 7 of the water purifier 2. , Circulate through the water purifier 2. Since the water passing through the circulation path 7 is replenished with hydroxide in the process of passing through the replenishment tank 9, the water is subjected to an electrolytic action in the silver electrolysis section 4 of the water purifier 2, whereby silver ions and hydroxide ions in the water are obtained. Bind to each other and become water containing a large amount of silver hydroxide AgOH having a strong sterilizing power. In this way, the water with enhanced sterilization power is used in the water purifier 2.
The water purifier 2 is sterilized and washed by circulating.
The sterilizing cleaning water circulated for a predetermined time is discarded by opening the three-way valve 10 of the drain pipe 11 to the drain side.

FIG. 2 shows another embodiment of the present invention.
The case where the present invention is applied to a water treatment device in which an electrolytic bath 12 for electrolytic water conditioning is connected to a downstream pipe line of a water purifier 2 is illustrated. The electrolytic cell 12 electrolyzes the introduced water to prepare alkaline water and acidic water, and takes them out separately from the alkaline water drainage pipe 13a and the acidic water pipe 13b. In the embodiment of FIG. The downstream side pipeline 1b of the electrolytic cell 12 is connected to the water supply side of the electrolytic cell 12, and the alkaline water drainage channel 13 of the electrolytic cell 12 is connected.
The circulation path 7 is formed in the upstream side pipe line 1a of the water purifier 2 from a, and the water in the alkaline water drainage pipe line 13a reaches the water purifier 2 through the circulation line 7 by operating the three-way switching valves 6a and 6b. It is designed to be fed back. The circuit 7 is shown in FIG.
Similar to the embodiment described above, a replenishment tank 9 filled with a hydroxide such as calcium hydroxide and a pump 8 are provided.

In this embodiment, when the alkaline water is taken out, the three-way switching valves 6a, 6b, 10 are opened to the alkaline water drainage side, and the alkaline water drainage faucet 3 and the acidic water drainage faucet 1 are used.
4 is opened and a normal electrolyzed water production operation is performed. On the other hand, when the switching valves 6a and 6b are switched so that the circulation path 7 is opened and the acidic water drainage on-off valve 14 is closed, water having a strong sterilizing power containing silver hydroxide circulates in the water purifier 2 and the electrolytic cell 12. Sterilization cleaning is performed. The sterilizing cleaning water circulated for a predetermined time is switched to the acidic water opening / closing valve 14 or the three-way switching valve 10 and is discharged to the drain.

The circulation path 7 is used for sterilizing the water purifier 2 and the electrolytic cell 12,
Although it is selectively opened when cleaning is required, it is desirable that this be automatically controlled. For this reason, in the embodiment of FIG. 2, preferably, the electrolysis control electric circuit 15 of the electrolyzer 12 is provided with an integrating circuit for integrating the electrolysis stop time and outputting a signal of a set integrated value, and the three-way switching valve 6a, An electric valve is used for 6b, and the three-way switching valves 6a and 6b automatically open the circulation path 7 in response to the integrated signal of the electrolysis stop time.

When calcium hydroxide is stored in the chemical replenishment tank 9, calcium hydroxide reacts with free carbonic acid in water to easily turn into calcium carbonate on the surface, which makes it difficult to dissolve in water. In particular, this tendency increases when electrolyzed alkaline water is passed through. In order to prevent this, the replenishment tank is shown in FIGS.
It is desirable to provide a vibrating means and a stirring means as shown in FIG.

In the replenishing tank 9 of FIG. 3, a replenishing tank main body 9a for storing calcium hydroxide is attached to a support base 9c which vertically vibrates by an electromagnet 9b, and non-water-soluble deposits such as calcium carbonate are shaken off by the vibration. Is done.

The replenishment tank 9 shown in FIG. 4 has a vibrating shaft 9 for the electromagnet 9b.
By extending d inside the replenishment tank body 9a in a liquid-tight and slidable manner, and by attaching a vibrating plate 9e to its tip, and vibrating and stirring the calcium hydroxide inside by vibrating plate 9e up and down. , To prevent the adhesion of calcium carbonate. The vibrating means is not limited to the above-described embodiment, and an eccentric motor M may be used as shown in FIG. 5, for example.

Further, in the embodiment of FIG. 6, the replenishing tank body 9a is
A part of the side circumference of the refill tank is integrally formed with an expandable bellows or a bellows portion 9a ', whereby the replenishment tank body 9a is divided into a fixed portion and a movable portion. Then, this fixed portion is attached to the support base 9c.
The movable portion is elastically supported by the support base 9c via the spring 9f, and the movable portion is vibrated by the drive device 13 provided below the movable portion. ing.

The drive unit 16 of the embodiment shown in FIG. 6 comprises a magnet 16a fixed to the bottom angle of the supply tank body 9a.
And the electromagnet 13b fixed to the support base 9c near the magnet 16a. The magnet 16a and the electromagnet 16b attract and repel a portion of the replenishment tank 9a (lower part in the figure) to expand and contract the bellows 9a '. It is designed to vibrate through. The vibration drive device used in the embodiment of FIG. 6 is not limited to the above structure. For example, although not shown, the movable part of the replenishment tank 9a that expands and contracts via the bellows part 9a 'and the eccentric cam rotated by the motor may be engaged to vibrate.

As described above, the replenishing tank 9a has a structure in which a part of the side circumference is formed by the bellows portion 9a ', and one end side of the replenishing tank 9a itself is vibrated through the bellows portion 9a'. 9
In addition to the advantage that a can be fixed, liquid tightness can be maintained because it is not necessary to shake a movable member into the tank.

The silver ions eluted in the silver electrolysis section as described above are converted to silver chloride AgC in water by chlorine and oxygen in the water.
1, silver oxide AgO is produced, or silver hydroxide AgOH is produced by the hydroxyl group supplied in the replenishing tank of the circulation path, but the concentration thereof is preferably 60 ppm or more.

[0028]

[Effect] With the above configuration, water purifiers, electrolyzers, etc. in the water circuit with the faucet closed are sterilized and washed with water having a strong sterilizing power containing silver hydroxide for a predetermined period of time, which effectively propagates germs. Can be prevented.

By the integrated signal of the electrolysis stop time of the electrolytic cell,
Sterilization and cleaning of water purifiers and electrolyzers are automatically operated.

By providing the chemical replenishing tank with the vibrating means and the agitating means, it is possible to prevent the calcium carbonate from adhering and maintain the intended purpose for a long time.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a water treatment device according to an embodiment of the present invention.

FIG. 2 is a schematic configuration diagram of a water treatment device according to another embodiment of the present invention.

[Figure 3] Configuration diagram of additive replenishment tank

FIG. 4 is a configuration diagram showing another embodiment of the additive supply tank.

FIG. 5 is a configuration diagram showing still another embodiment of the additive supply tank.

FIG. 6 is a configuration diagram showing still another embodiment of the additive supply tank.

[Explanation of symbols]

1 ... Water circuit, 2 ... Water purifier, 3, 14, ... Open / close valve,
4 ... Silver electrolysis section, 6a, 6b, 10 ... Three-way switching valve, 7
... circulation path, 8 ... pump, 9 ... hydroxide replenishment tank, 9
a: replenishing tank main body, 9b ... vibrating device, 9e ... vibrating plate,
9f ... spring, 11 ... drainage pipe, 12 ... electrolytic cell, 13
a ... Alkaline water drainage line, 13b ... Acidic water drainage line
14 ... Three submersible drainage pipe 15 ... Electrolysis control electric circuit, 16
... Drive device, 16a ... Magnet, 16b ... Electromagnet

Claims (5)

[Claims] 1. In a water treatment device using a water circuit having a water purifier, the water purifier is provided with a silver electrolysis section for applying a voltage to elute silver ions, and from a downstream side pipe line of the water purifier. A circulation path that selectively feeds back water is formed in the upstream pipe of the water purifier via a three-way switching valve, and a supply tank for hydroxide such as calcium hydroxide is inserted in this circulation path. Water treatment equipment 2. A downstream side pipe line of the water purifier is connected to a water supply port of an electrolyzer for electrolyzing water to discharge alkaline water and acidic water, and the alkaline water drainage line of the electrolyzer is connected via a three-way switching valve. A water treatment system characterized in that a circulation passage for selectively feeding back water is formed in a downstream pipe of the water purifier, and a supply tank for a hydroxide such as calcium hydroxide is provided in the circulation passage. apparatus 3. The water treatment apparatus according to claim 2, further comprising automatic control means for accumulating the electrolysis stop time of the electrolytic cell and for opening the feedback circulation path by the three-way switching valve when the set integration time is reached. 4. The water treatment device according to claim 1, wherein the hydroxide replenishing tank is equipped with a vibration means and / or a stirring means. 5. A replenishing tank body of a hydroxide replenishing tank is divided into a fixed portion and a movable portion by an expandable and contractible bellows portion, and the fixed portion is fixed to a support column, and the movable portion is vibrated by an external drive mechanism. The water treatment device according to claim 4, which is adapted to be applied with force.