JPH0655174A - Electrolytic water producing apparatus - Google Patents

Abstract

PURPOSE:To provide an apparatus capable of arbitrarily obtaining electrolytic water with desired liquidity and not always requiring drainage. CONSTITUTION:A cathode plate 1 is hermetically closed within a diaphragm chamber 4 and anode plates 2, 3 are arranged outside the diaphragm chamber 4 in opposed relation to the cathode plate 1 and these members are held by a holder 5 to be supported within the water received in a water tank 7. Electrolysis is performed by applying negative DC voltage to the cathode plate 1 from a DC power supply device 10 and applying positive DC voltage to the anode plates 2, 3 from the device 10 and alkali ion water is obtained from the diaphragm chamber 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an electrolyzed water generator,
In particular, devices with water and hot water tanks such as jugs, thermos bottles, kettles, mouthwashers, ice makers, etc. on the tabletop, cathode water (alkali ion water) or anode water (acidic water)
The present invention relates to an improvement of an electrolyzed water generator suitable for selectively taking one electrolyzed water.

[0002]

2. Description of the Related Art In a conventional electrolyzed water generator, a cathode plate and an anode plate facing the cathode plate are arranged via a diaphragm, and negative and positive DC voltages are applied to the respective electrode plates to generate water. It was common to electrolyze to produce cathodic and anodic water simultaneously.

[0003]

However, in such a conventional apparatus, only one of the electrolyzed water (alkali ion water or acid water) is used, and the other electrolyzed water is drained as unnecessary. It was a structure that would do. The amount of this wastewater reached about half of the amount of water introduced into the electrolyzer, and the efficiency of water use was very poor. In addition, the conventional device,
For example, even if it is built into a cup-type vending machine and a dispenser and used to generate drinking water, almost equal amounts of alkaline ionized water and acidic ionized water are produced at the same time as described above, and only one electrolyzed water is produced. Since the structure cannot be used, the other electrolyzed water must be drained, but this is a fatal defect in maintenance and management and has not been put to practical use.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to propose a structure in an electrolyzed water generator in which electrolyzed water of a desired polarity is arbitrarily taken in and basically the problem of drainage is solved to eliminate the conventional drawbacks. is there.

[0005]

In order to achieve the above object, the electrolyzed water producing apparatus of the present invention comprises a cathode plate or an anode plate housed in a diaphragm chamber, and the diaphragm facing the cathode plate or the anode plate. An electrolyzer comprising at least one pair of an anode plate or a cathode plate arranged outside the chamber, a tank for holding the electrolyzer so as to be submerged in water, and a first means for supplying water to the tank. And a second means for taking out the first generated water generated by electrolysis in the diaphragm chamber.

[0006]

In the electrolyzed water producing apparatus of the present invention, negative and positive DC voltages are applied to the cathode plate (or the anode plate) and the pair of anode plates (or the cathode plates), respectively. The electrolysis of water is performed, and the first generated water from the diaphragm chamber,
For example, alkaline ionized water (or acidic water) is taken in.
In this case, at the same time, the second generated water generated in the vicinity of the pair of anode plates, for example, acidic water (or alkaline ionized water), is mixed with the first generated water in the diaphragm chamber. Since the produced water is separated in the diaphragm chamber, its mixing ratio is relatively low, and the concentration of the first produced water can be maintained at a predetermined level for a considerably long time. In particular, in the case of a water-passing type device, since water is newly supplied periodically, the concentration of the second produced water is diminished, which poses no practical problem, and appropriate measures can be taken.

[0007]

Embodiments of the present invention shown in the drawings will be described below.
FIG. 1 shows an embodiment of the electrolyzed water producing apparatus according to the present invention.
In the figure, reference numeral 1 denotes a cathode plate, which is housed in the diaphragm chamber 4 in a substantially sealed state. Reference numerals 2 and 3 denote anode plates, which are arranged outside the diaphragm chamber 4 so as to face the cathode plate 1. Reference numeral 5 is a holder for holding these members 1 to 4, and the electrolytic cell 6 configured in this way is supported so as to be submerged in the water in the tank 7.

A water passage 8 is provided at the top of the diaphragm chamber 4 of the electrolytic cell 6.
However, an intake channel 9 is provided at the bottom via a valve 12. The cathode plate 1 and the anode plates 2 and 3 are connected to the DC power supply device 10, respectively. Further, the tank 1 has a valve 1
The water is supplied via 1.

When negative and positive DC voltages are applied to the cathode plate 1 and the anode plates 2 and 3 from the DC power supply device 10, the water in the tank 7 is electrolyzed, and the alkali in the diaphragm chamber 4 is generated. Ionized water is generated, and acidic water is generated in the vicinity of the anode plates 2 and 3 on the outer side thereof, and alkaline ionized water can be taken in from the water intake channel 9.

In this case, therefore, the acidic water is slightly mixed with the alkaline ionized water in the diaphragm chamber 4, but the cathode plate 1 is almost sealed in the diaphragm chamber 4 and only enters from the top water passage 8. Therefore, the mixing ratio is relatively low and the concentration of alkaline ionized water can be maintained at a desired level for a considerably long period of time. Further, since water is newly supplied to the tank 7 via the valve 11 as appropriate, the concentration of the acidic water is lowered.
Therefore, it is possible to obtain only the alkaline ionized water having a predetermined concentration without draining the acidic water.

Further, instead of the cathode plate, an anode plate, 1
It is apparent that if a pair of cathode plates is used instead of the pair of anode plates and a positive and negative DC voltage is applied to each, only acidic water of a predetermined concentration is obtained.

Furthermore, if a material that can be used as a negative or positive electrode plate is used as the electrode plate, for example, a titanium-platinum, gold and platinum-plated or platinum (platinum-based metal) fired electrode plate is used, the applied DC voltage Only by switching the polarity, it is possible to selectively take in the desired concentration of alkaline ionized water or acidic water.

Another embodiment of FIGS. 2 to 4 is shown. In the figure, 21 is a water tank, 22 is a water pump, 23 is an ice maker, 24 is a water heater, 25 is a coffee or tea extractor, and 26
Is a juice concentrate tank, 27 is a carbon dioxide gas cylinder, 28 is a solenoid valve, 29 is a float, 30 is a water purifier, 31 is an electrolyzer, 32 is a self-contained power source for electrolyzed water, and 33 and 34 are product storages for juice, coffee, etc. Tanks 34a to 34d are valves.

The electrolytic cell 31 is an anode plate (or sometimes cathode plate) 31.
a, 31a ', a closed diaphragm chamber (separator) 31b, a cathode plate (or an anode plate) 31c, a holder 31d, a valve 31e (or a hole) with an adjustable opening, and is supported so as to be submerged in the tank 21, From the power source 32, a positive DC voltage is applied to the anode plates 31a and 31a ′,
A negative DC voltage is applied to each of 1c. The float 29 turns on / off the microswitches 35 and 36 in response to the vertical movement of the water level in the tank 21, and controls the opening / closing of the solenoid valve 28 by the microswitches.

In the above-described embodiment, tap water is passed through the water purifier 30 to remove the odor of chlorine and supplied to the tank 21 via the electromagnetic valve 28. At this time, depending on the position of the support rod 29a of the float 29 corresponding to the predetermined water level, for example, the micro switch 35 is turned on to open the electromagnetic valve 28 to allow water to enter, and the rise of the water level thereby turns on the micro switch 36. Then, the electromagnetic valve 28 is closed to stop the water.

When the pump 22 is operated, the sealed diaphragm chamber 31
Although water flows only in b, the anode plate side is the tank 21
It is naked inside and there is no water flow. At this time, positive and negative DC voltages are applied to the anode plates 31a, 31a 'and the cathode plate 31c, so that electrolysis occurs and the diaphragm chamber 3
Cathode water (alkali ion water) is generated in 1b and is supplied to each part by the pump 22.

On the other hand, the anodic (acidic water) is the anode plate 31a,
When the acid water component is generated around 31a 'and tends to be concentrated in the tank 21 and becomes saturated, the electrolysis efficiency decreases. In such a case, the valve 31e,
31e 'is opened and a fixed amount of anode water is mixed. This makes it possible to obtain the desired alkaline PH of the cathode water, although the pH of the alkaline water is lowered to some extent. Furthermore, since new tap water is replenished in the tank 21, an extreme decrease in pH of the electrolyzed water in the tank 21 is not seen, and continuous electrolysis is practically possible.

If the polarity of the DC voltage applied to each electrode plate of the electrolytic cell 31 is reversed by the power source 32, the liquid property of the electrolytic water used can be changed and only acidic water can be produced. In this case, it is preferable to use a firing electrode of titanium-platinum, gold and platinum plating, or platinum (white metal type metal) as the electrode plate.

FIG. 5 shows an embodiment in which the electrolyzed water producing apparatus of the present invention is applied to an apparatus having a storage tank such as a water bottle pot, a thermos bottle, and a kettle pot. In the figure, 41 is a pressure tank, 42 is a lid for sealing the tank, 43 is an electrolytic cell, 44 is a DC power supply, 45 is a detection control circuit, 46 is a conductivity detection electrode or detection electrode, 47 is a display unit, 48 Is a concentrated product liquid intake valve, 50 is an air valve, 51 is a bellows, 5
2 is a flow detector.

The electrolytic cell 43 is constructed as shown in FIGS. In the figure, the cathode plates 43a, 43a 'and the anodes 43b, 43b', 43b "are formed of flat plates or net-like flat plates, for example, the above-mentioned titanium-platinum firing electrodes, and thus can be used as both negative and positive plates. Is.
The cathode plates 43a and 43a 'are hermetically sealed in the diaphragm chambers 43c and 43c', and the electrode terminals 4 from the cathode plate and the anode are provided.
3a-1, 43a'-1, 43b-1, 43b'-1,
43b ″ -1 is fixedly supported by the terminal block 43d.
3e is a water inlet 43c-1, 43c'- of each electrode plate and a holder (separation chamber, diaphragm chamber) 43c, 43c 'of the diaphragm chamber.
1 and the produced water outlets 43c-2, 43c'-2 corresponding to the electrolytically produced water intake 43c-3, the produced water outlets 43c-2, 43c'-2 are inserted and sealed in the holder 43e, Since the anode plate 43b, 43b ', 43b "has a structure in which the electrolytically generated water is not mixed, the diaphragm chamber 43
Water produced by electrolysis by the cathode plates 43a and 43a 'in c and 43c' can be collected and taken from the water intake port 43c-3. In addition, moving water holes (bubble escape holes) 43f and 43f 'are provided in the upper portion of the anode plate of the holder 43e, and the electrolytic cell 43 may be provided with an outer wall 43g as shown in FIG. 8, for example.

In the embodiment of FIG. 5 having the electrolytic cell 43 described above, when compressed air is sent into the pressure tank 41 by pressing the bellows 51, the water surface is pressed by the air and the diaphragm of the electrolytic cell 43 is submerged. The target electrolyzed water (alkali ionized water) is taken from the water intake port 43c-3 through the flow detector 52 through the chambers 43c and 43c '.

By pressing the bellows 51 in this way, water flows, and the flow detector 52 detects this, and the signal output is sent to the control circuit 45. In response to this, the DC power source 44 responds to each electrode plate. A direct current voltage of a predetermined polarity is applied to. In this case, the electrode plate 43 of the diaphragm chamber 43c, 43c '
If the polarity of the DC voltage applied to a and 43a ′ is negative, alkaline ionized water is obtained, and if positive, acidic water is obtained selectively.

Further, the detection electrode or the conductivity detection electrode 46 detects an increase in the concentration of the liquid property opposite to the liquid property (acidic or alkaline) of the intended use, and corresponds to the value of the conductivity when the concentration exceeds a certain level. When the detection signal is obtained, the control circuit 45 opens the air valve 50 to stop the flow of water, and when this detects the flow detector 52, the application of the DC voltage to each electrode plate is stopped and the electrolysis is stopped. It

FIG. 9 shows still another embodiment of the present invention, in which 61 is a water tank, 62 is an electrolytic cell, 63 is a level sensor, and 64.
Is a conductivity detection electrode, 65 is a detection control circuit, 66 is a display unit, 67 is a DC power supply, 68 is an electromagnetic valve, 69 is a concentrated product liquid intake valve, and 70 is a pump. The electrolytic cell 62 has the same structure as that described above.

A water level sensor 63 is installed in the water tank 61.
In response to the detection signal, the detection control circuit 65 opens or closes the electromagnetic valve 68 to supply or stop new water to control the water level. When the switch 65a of the detection control circuit 65 is turned on, the pump 70 is operated and the electrode plates 62a, 62a′6 of the electrolytic cell 62 are also activated.
A DC voltage of a predetermined polarity is applied to 2b, 62b ', and 62b "from a DC power source 67, and a negative polarity and a positive polarity are selected by the control circuit 65 to obtain the target liquid electrolyzed water (electrode plate). Needless to say, 62a and 62a 'are sealed in the diaphragm chambers 62c and 62c') The desired electrolyzed water is taken from the electrolyzer 62 by the operation of the pump 70.

In this case, the electrode plates 62b, 62b'62
When the concentration of the electrolyzed water opposite to the purpose generated around b ″ increases, the detection electrode 64 is generated at a certain level or higher.
Detects this, and in response to the detection signal, the detection control circuit 65 stops the application of voltage from the DC power supply 67 to each electrode and the operation of the pump 70 to stop the generation of electrolyzed water.

[0027]

As described above, according to the present invention, a desired liquid electrolyzed water can be obtained. In addition, since the need for constant drainage is eliminated, the efficiency of water use is improved and it can be applied to cup-type vending machines.

[Brief description of drawings]

FIG. 1 is a schematic view showing an embodiment of the present invention.

FIG. 2 is a schematic view showing another embodiment of the present invention.

FIG. 3 is a schematic view showing details of main parts of the embodiment of FIG.

FIG. 4 is a partially enlarged view of FIG.

FIG. 5 is a schematic view showing still another embodiment of the present invention.

6 is a cross-sectional view showing the electrolytic cell of the embodiment of FIG.

FIG. 7 is a perspective view showing the electrolytic cell.

FIG. 8 is a perspective view showing the electrolytic cell.

FIG. 9 is a perspective view showing still another embodiment of the present invention.

[Explanation of symbols]

 1 cathode plate 2, 3 anode plate 4 diaphragm chamber 5 holder 6 electrolytic tank 7 water tank 10 DC power supply device

Claims (7)

[Claims] 1. A cathode plate or an anode plate housed in a diaphragm chamber, and at least one pair of anode plate or cathode plate arranged outside the diaphragm chamber so as to face the cathode plate or the anode plate. An electrolyzer, a tank in which the electrolyzer is held so as to be submerged in water, a first means for supplying water to the tank, and a second water for taking out first produced water generated by electrolysis in the diaphragm chamber. And a means for producing electrolyzed water. 2. The first means includes a water purifier and an electromagnetic valve provided between the water purifier and the tank, the electromagnetic valve being opened / closed in response to the water level in the tank. It is constituted so that it may be constituted.
The electrolyzed water generator according to item 1. 3. The first taken out by the second means
The electrolyzed water producing apparatus according to claim 1, further comprising a third means for mixing the produced water of (3) with the second produced water produced by the pair of anode plates or cathode plates. 4. The electrolyzed water generation apparatus according to claim 1, further comprising a third portion that has a lid portion that seals the tank, and that applies a pneumatic pressure to a water surface in the sealed tank. 5. The detection means for detecting the conductivity of the second produced water produced by electrolysis outside the pair of anode plates or cathode plates. Electrolyzed water generator. 6. The electrolyzed water generating apparatus according to claim 1, wherein the cathode plate and the anode plate are calcined electrode plates of titanium-platinum, gold and platinum or a platinum-based metal. 7. The electrolyzed water generator according to claim 6, further comprising third means for arbitrarily selecting the polarities of the voltages applied to the cathode plate and the anode plate.