JPH08215684A - Ionic water making apparatus - Google Patents

Abstract

PURPOSE: To effectively utilize alkaline ionic water and acidic water without discharging one of them to waste the same by storing alkaline ionic water and acidic water formed in an electrolytic cell in respective exclusive tanks and supplying both of them from the respective exclusive tanks if necessary. CONSTITUTION: At a start time of operation, a solenoid valve 14 is opened to supply tap water to electrolytic cells 11, 11 from a water supply passage 9 through a mixer 7. Voltage is applied across first and second electrodes from a DC power supply to perform electrolysis. Further, the flow rate of the water supply passage 9 is detected by a control circuit 42 through a first flow rate sensor 15 and a pump 4 is controlled corresponding to the detected flow rate to supply chlorine water 2 in a chlorine water tank 3 to the mixer 7. In the electrolytic cells 11, 11, the opening and closing of first and second opening and closing valves 23, 23, 24, 24 is controlled corresponding to the applied voltage to the first and second electrodes and alkaline ionic water formed in an alkaline water passage 25 is stored in an alkaline water tank 32 and storing acidic water formed in an acidic water passage 26 is stored in an acidic water tank 34.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ionized water producing apparatus for producing acidic water and alkaline ionized water having relatively high concentrations by adding additives such as chlorine ions to tap water.

[0002]

2. Description of the Related Art In the case of electrolyzing tap water or the like to produce strongly acidic water having a high bactericidal effect, for example, Japanese Patent Publication No. 6-736.
As disclosed in Japanese Patent No. 75, etc., after adding an additive such as sodium hypochlorite to tap water supplied through a water supply pipe, electrolysis is performed in an electrolytic cell, and a pH value higher than that of an anode chamber of the electrolytic cell is obtained. High so-called strongly acidic water is produced, and alkaline ionized water is produced from the cathode chamber.

[0003]

The strongly acidic water produced in the anode chamber has a pH of 2 to 7, an oxidation-reduction potential of 1,000 mv or more, and a residual chlorine concentration of 100 ppm or more, and a bactericidal effect is obtained. It is known to be used as sterilizing water in hospitals and clinics, but the alkaline ionized water generated in the cathode chamber has a pH of 10 or more and a redox potential of -700 mv or less. Although it is water, it is almost always treated as wastewater after being produced.

On the other hand, when strongly acidic water comes into contact with protein substances such as serum, the redox potential and residual chlorine concentration decrease,
There is a problem that the sterilizing power becomes weak.

Therefore, the present invention aims to effectively utilize the bactericidal effect of strongly acidic water.

[0006]

According to the present invention, raw water prepared by adding an additive to tap water is electrolyzed by applying a DC power source to an electrode arranged in an electrolytic cell to produce alkaline ionized water and acidic water. In the product to be produced, the alkaline water passage for supplying the alkaline ionized water produced in the electrolytic cell is connected to the alkaline water tank for directly storing the alkaline water supplied from this alkaline water passage, and is produced in the electrolytic cell. A water supply that connects an acidic water tank that directly stores the acidic water supplied from this acidic water passage to the acidic water passage that supplies the acidic water, and that selectively supplies alkaline ionized water and acidic water in these tanks. An ionized water generator characterized in that means are provided.

In the present invention, the water supply means is configured to supply the alkaline ionized water in the alkaline water tank with a predetermined amount or for a predetermined time, and then supply the acidic water in the acidic water tank. Is.

Further, according to the present invention, the water supply means is configured to supply the acidic water in the acidic water tank with water for a predetermined amount or for a predetermined time, and then supply the alkaline ionized water in the alkaline water tank. Is.

[0009]

[Function] By first supplying alkaline ionized water by the water supply means, washing the washing surface and the washing object with alkaline ionized water to wash off blood and protein substances, and then supplying acidic water to perform washing and sterilization. It is possible to suppress deterioration of the sterilizing effect of acidic water due to protein substances, and to sterilize efficiently with a relatively small amount of acidic water.

By the water supply means, first, the acidic water is supplied,
After sterilizing pathogenic bacteria etc. adhering to hospital sheets and lab coats with this acidic water, by supplying alkaline ionized water for cleaning, the acidic water and alkaline ionized water are effectively used for cleaning and sterilization. Is something that can be done.

[0011]

EXAMPLE An example according to the present invention will be described first with reference to FIGS. 1 and 2. (1) is a generator main body, which stores chlorine water (2) obtained by adding chlorine ions such as salt to tap water. The mixer (7) is placed on the chlorine tank (3) and is connected to this chlorine tank via a chlorine water supply channel (6) equipped with a pump (4) and a check valve (5). , This mixer has a water source such as water
Connect the water supply passage (9) connected to (8), and also the mixer
A pair of electrolytic cells (11) and (11) are connected to the water supply channel (10) of (7).

Further, a water stop valve (12), a check valve (13), a solenoid valve (14), a first flow sensor (15) and a flow control valve (16) are sequentially connected to the water supply passage (9). In addition to the above, the electrolytic cell (11) (1
As shown in FIG. 3, the cylindrical first electrodes (18) (18) and the second electrodes (19) (19) are concentrically arranged in the inside of 1) via the cylindrical diaphragms (17) (17). DC electrodes (20) are connected to these electrodes.

On the other hand, the electrolytic cell (11) (11) has a first electrode (1
8) (18) When the anode side of the DC power supply (20) and the cathode side of the second electrodes (19) (19) are applied, the strong acid water generated around the first electrodes (18) (18) Acidic water supply channel (21) (21) for supplying water and the second electrode
(19) (19) (19) is connected with alkaline water supply channel (22) (22) for supplying alkaline ionized water generated around, and these acidic water supply channel and alkaline water supply channel are connected to each other,
Moreover, the first opening / closing valve (23) (23) composed of a solenoid valve or the like is connected downstream of this connecting portion, and the alkaline water passageway (24) and the acidic water passageway (25) are connected downstream of these solenoid valves. are doing.

Further, upstream of the first opening / closing valves (23) and (23) of the acidic water supply passages (21) and (21) and the alkaline water supply passages (22) and (22), these parts are connected to the second opening and closing valves ( 24) (24) via the above-mentioned first on-off valve (23) (23)
The first branch passages (27) and (28) connecting to the downstream alkaline water passage (25) and the acidic water passage (26) are connected.

Therefore, for example, when the anode side of the DC power source (20) is applied to the first electrodes (18) and (18) and the cathode side is applied to the second electrodes (19) and (19), the first opening / closing valve (23) ) (23) to open the second on-off valve (2
4) Close (24), supply alkaline ionized water supplied from the alkaline water supply channels (22) (22) to the alkaline water passage (25), and supply it from the acidic water supply channels (21) (21). Supply strongly acidic water to the acidic water passage (26).

When the cathode side of the DC power source (20) is applied to the first electrodes (18) and (18) and the anode side is applied to the second electrodes (19) and (19), the first on-off valve (23) (23) is closed and the second on-off valves (24) and (24) are opened, and the strong acidic water supplied from the alkaline water supply channels (22) and (22) is passed through the first branch passage (28) to the acidic water passage. Water is supplied to (26), and alkaline ionized water supplied from the acidic water supply channels (21) and (21) is supplied to the alkaline water passage (25) through the first branch passage (27). It can generate alkaline ionized water and strongly acidic water.

The DC power source (20) is constructed so as to invert the polarity at regular intervals before the scale such as calcium adheres to the electrode surface, and in conjunction with the inversion of the polarity, the first opening / closing operation is performed. The valves (23) (23) and the second opening / closing valves (24) (24) are configured to be opened / closed.

The first branch passage (28) of the acidic water passage (26)
Downstream of the connection and the first branch passage of the alkaline water passage (25)
(27) The downstream of the connecting portion is branched and connected to the drainage passage (30) through the second branch passages (29) and (29), and the third opening / closing valve (31) (31) 31) is connected.

(32) is an alkaline water tank connected to the downstream of the alkaline water passageway (25) through a fourth opening / closing valve (33), (34)
Is an acidic water tank connected to the downstream of the acidic water passageway (26) through a fifth opening / closing valve (35), and is housed in the tank case (36).

(37) is an alkaline water supply channel (38) which stores the alkaline ionized water (38) stored in the alkaline water tank (32) and the strongly acidic water (39) stored in the acidic water tank (34). 40) and a water supply pump for supplying water through the acidic water supply channel (41), and a sixth opening / closing valve (43) connected to an appropriate position of the alkaline water supply channel (40) by a control circuit (42) mainly composed of a microcomputer or the like.
And the seventh open / close valve (44) connected to the proper position of the acidic water supply channel (41), and the water supply port (45) is connected to the tank case.
It opens at the front of (36).

A second flow rate sensor (46) is connected to the alkaline water passage (25), and the acidic water passage (26) is also provided.
A well-known oxidation-reduction potential sensor (47) is connected upstream of the fifth on-off valve (35), and is configured to measure the oxidation-reduction potential of strong acidic water flowing in the acidic water passageway (26). ing.

In FIG. 1, reference numeral (48) is an operation panel mounted on the front surface of the generator main body (1), and as shown in FIG. 4, an operation switch (49), a power lamp (50), and a generation operation display lamp ( Five
1), antifreeze operation lamp (52), flow rate indicator (53), redox potential indicator (54) that displays the redox potential or the set redox potential detected by the redox potential sensor (47),
Potential setting switches (55) (56) for setting the redox potential, water supply selection switches (57) (58) for selectively setting water supply by the water supply pump (37), water supply switch (59), monitor display
(60) and the like are provided, and this monitor display is composed of a character indicating an operation or an abnormal state and a lamp (not shown) which emits light from the back side of the character.

On the other hand, the control circuit (42) has, for example, the first and second flow rate sensors at the input part of the microcomputer.
(15) (46), above chlorine tank (3), alkaline water tank (3
2) and the water level sensor (61) (6) attached to the acidic water tank (34)
2) (62) (63) (63), operation switch (49) on operation panel (48), potential setting switch (55) (56), water supply selection switch (57) (5)
8), the water supply switch (59), etc. are connected, and the pump (4), the flow control valve (16), the DC power supply (20), the first on-off valve are connected to the output section.
(23) (23), second on-off valve (24) (24), third on-off valve (31) (31),
The 4th on-off valve (33), the 5th on-off valve (35), the 6th on-off valve (43), the 7th on-off valve (44), the operation panel (48), etc. are connected.

The oxidation-reduction potential indicator (54) indicates that, for example, the water level in the alkaline water tank (32) or the acidic water tank (34) becomes lower than the set water level, and the alkaline water is stored in the electrolytic cell (11) (11). When generating ionized water and acidic water, the oxidation-reduction potential of acidic water measured by the oxidation-reduction potential sensor (47) is displayed, and the water level in the alkaline water tank (32) and acidic water tank (34) reaches the set water level. When the temperature rises and the generation by the electrolytic cells (11) (11) is stopped, the redox potential set by the potential setting switches (55) (56) is displayed.

In the water supply selection switches (57) and (58), for example, the water supply switch (59) is turned on after the switch (57) is selectively input to open the seventh open / close valve (44) to supply water. Mouth (45)
First, after supplying strongly acidic water in the acidic water tank (34) for a predetermined time (or a predetermined flow rate), the seventh opening / closing valve (44) is closed and the sixth opening / closing valve (43) is opened, and the water supply port (45 ) Water supply switch (5
By configuring so that the alkaline ionized water (38) in the alkaline water tank (32) is supplied until 9) is turned off and the switch (58) is selected and input, the water supply switch (59) is turned on and operated. ,
Similarly to the above, after the alkaline ionized water is supplied from the water supply port (45) for a predetermined time, the strongly acidic water is supplied.

Since the power lamp (50) of the operation panel (48) is lit when the power is on, the operation starts when the operation switch (49) is turned on, and the solenoid valve (14) ) Is opened to supply tap water from the water supply passage (9) through the mixer (7) to the electrolytic cell.
(11) Supply water to (11) and use the DC power supply (20) for the first and second
At the same time as applying electrolysis to the electrodes (18) (18) (19) (19), the control circuit (42) detects the flow rate of the water supply passage (9) with the first flow rate sensor (15). , Pumps accordingly (4)
The chlorine water (2) in the chlorine water tank (3)
Supply to (7).

In the electrolytic cell (11) (11), the first and second on-off valves (23) are provided in accordance with the polarity applied to the first and second electrodes (18), (18), (19) and (19). (23) (24) (24) is controlled to open and close, the alkaline ionized water generated in the alkaline water passage (25) is stored in the alkaline water tank (32), and the strong acid generated in the acidic water passage (26) is stored. Storm water is stored in the acid water tank (34).

The control circuit (42) measures the oxidation-reduction potential of strong acidic water flowing in the acidic water passage (26) at the output of the oxidation-reduction potential sensor (47), and this potential is the potential setting switch. The voltages applied to the first and second electrodes (18), (18), (19) and (19) are controlled so that the potentials set by (55) and (56) are obtained.

Further, the control circuit (42) has an acidic water passage (26).
If the oxidation-reduction potential of the strongly acidic water generated in the chamber deviates from the set potential, or if the amount of water supply detected by the first flow sensor (15) fluctuates for some reason, the fourth and fifth on-off valves (33) (35) is closed and the 3rd on-off valve (31) (31) is opened,
The water supply to the tanks (32) and (34) of the alkaline ionized water and the strongly acidic water generated in the alkaline water passage (25) and the acidic water passage (26) is stopped, and the water is drained from the drainage passage (30).

[0030]

According to the structure of the present invention, the alkaline ionized water and the acidic water produced in the electrolytic cell are stored in the alkaline water tank and the acidic water tank, respectively. By supplying water and acidic water, it is possible to use effectively without draining either alkaline ionized water or acidic water generated in the electrolytic cell as in the past and wasting it. Is.

Further, according to the constitution of the present invention, the water supply means is constituted so that, for example, after the alkaline ionized water in the alkaline water tank is supplied, the acidic water in the acidic water tank is supplied, and the washed product is first washed with the alkaline ionized water. After washing off the blood and protein substances of, by washing and sterilizing with acidic water,
It is possible to effectively utilize the bactericidal effect of acidic water and enhance the bactericidal effect.

Further, in the present invention, the water supply means is constituted, for example, by first supplying acidic water and then supplying alkaline ionized water, and after sterilizing the pathogenic bacteria and the like adhering to the sheets of the hospital with the acidic water, the By washing with ionized water, the washing effect of alkaline ionized water can be enhanced and efficient washing can be performed.

[Brief description of drawings]

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

FIG. 2 is a schematic configuration diagram of the same.

FIG. 3 is a schematic configuration diagram of a main part of the same.

FIG. 4 is a front view showing an operation panel of the same.

[Explanation of symbols]

 11 Electrolyzer 18 First electrode 19 Second electrode 20 DC power supply 25 Alkaline water passage 26 Acidic water passage 32 Alkaline water tank 34 Acidic water tank 37 Water supply pump

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Fumio Nakagawa 3-201 Minamiyoshikata, Tottori City, Tottori Prefecture Tottori Sanyo Electric Co., Ltd.

Claims (3)

[Claims] 1. A method for producing alkaline ionized water and acidic water by applying direct current power to an electrode provided in an electrolytic cell to electrolyze raw water prepared by adding an additive to tap water. In the alkaline water passage for supplying the alkaline ionized water generated in, the alkaline water tank for directly storing the alkaline water supplied from this alkaline water passage is connected, and the acidic water for supplying the acidic water generated in the electrolytic cell is supplied. An acid water tank for directly storing the acidic water supplied from the acidic water path is connected to the water passage, and a water supply means for selectively supplying alkaline ionized water and acidic water in these tanks is provided. Characteristic ionized water generator. 2. The water supply means is configured to supply the alkaline ionized water in the alkaline water tank with a predetermined amount of water or for a predetermined time, and then supply the acidic water in the acidic water tank. The ionized water generator according to claim 1. 3. The water supply means after supplying the acidic water in the acidic water tank with a predetermined amount or for a predetermined time,
The ionized water production apparatus according to claim 1, wherein the ionized water generator is configured to supply alkaline ionized water in the alkaline water tank.