JP3299591B2 - Electrolytic ionic water generator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrolytic ionic water generator for electrolyzing treated water such as water or saline to produce acidic ionic water and alkaline ionic water.

[0002]

2. Description of the Related Art This type of apparatus is disclosed, for example, in Japanese Patent Laid-Open No. 4-33.
No. 0987, and if the DC voltage applied to both electrodes has been used for a long time without switching between positive and negative,
There is a problem that calcium, sodium, etc. adhere to the surface of the minus side electrode in a layered manner, lowering the electrical conductivity and making it impossible to obtain the desired electrolytic ionized water. It is common practice to switch the forward and reverse directions to peel off the above-mentioned deposits from the electrodes (hereinafter, this is referred to as reverse cleaning).

[0003]

By the way, in an electrolytic ionized water generator, an electrode is used in which platinum plating or platinum iridium is baked and reinforced on the surface of a titanium substrate in consideration of catalytic function, durability and the like. However, for example, when switching from the ionized water generation state (positive voltage applied state) to the reverse voltage cleaning state (reverse voltage applied state), the electrode that is switched from plus to minus may be significantly affected, and the duty ratio may decrease. is there. This is because hydrogen ions H ^{+ in the} electrode chamber in which the positive electrode is housed when a positive voltage is applied before the reverse voltage cleaning.
In the case where the hydrogen ions H ⁺ are adsorbed on the surface of the electrode switched from plus to minus during the reverse electric cleaning and the surface of the titanium Ti base is plated with platinum, a platinum film is formed. Hydrogen dissolves inside and reacts with the internal titanium base material, producing titanium hydride TiH ₄ that is non-metallic and has poor electrical conductivity and expands in volume due to the reaction, which is platinum plated at the interface between platinum plating and titanium base material In the case where platinum iridium is baked on the surface of the titanium base material, iridium oxide IrO ₂ in the baked product reacts with hydrogen to be reduced, and is easily dissolved in water. Is generated and elutes to expose the titanium base material, and the exposed titanium base material reacts with hydrogen to produce nonmetallic titanium hydride with poor electrical conductivity. This phenomenon, that is, hydrogen embrittlement, occurs in any case as long as the electrode is made of a metal material. SUMMARY OF THE INVENTION The present invention has been made to address the above-described problem, and an object of the present invention is to switch the forward / reverse of a DC voltage so that ionic water opposite to each ionic water remaining in both electrode chambers is applied to each electrode chamber. The purpose of the present invention is to quickly neutralize or reverse ionize water in each electrode chamber by automatically supplying the water to each of the heads.

[0004]

In order to achieve the above-mentioned object, in the present invention, the electrolytic ionic water generating apparatus comprises a water storage tank for storing treated water such as water or saline, and a metal material. A first and a second electrode are disposed inside each other, and a diaphragm is disposed between the two electrodes to form first and second electrode chambers for accommodating the respective electrodes. An electrolytic cell adapted to flow in and out; a pump for pumping treated water in the water storage tank to both electrode chambers of the electrolytic cell; and electrolytic ions connected to the first electrode chamber and generated in the same electrode chamber. A first discharge pipe for discharging water, a second discharge pipe connected to the second electrode chamber for discharging electrolytic ionic water generated in the electrode chamber, and a rising portion rising above the water surface of the water storage tank; And an opening communicating with the atmosphere. A first outlet pipe connected to a discharge pipe, a second outlet pipe connected to the first and second discharge pipes having a rising portion rising above the water surface of the water storage tank and an opening communicating with the atmosphere; The first discharge pipe is connected to the connecting portion between the first discharge pipe and the two outlet pipes, and the first discharge pipe is connected to the first discharge pipe.
Or a first switching valve communicating with a second outlet pipe;
The second pipe is interposed between a discharge pipe and a connecting portion between the two discharge pipes.
A second switching valve for communicating a discharge pipe with the first or second outlet pipe, electrode switching means for switching between forward and reverse DC voltages applied to the two electrodes, and both electrodes when the voltage application is switched by the electrode switching means; A voltage application stopping means for stopping voltage application to the set time, and an operation control means for temporarily stopping the pump and switching the two switching valves when the voltage application is stopped by the voltage application stopping means. In addition, an auxiliary tank portion is provided at a position of each of the outlet pipes located above the water storage tank.

[0005]

In the electrolytic ionic water generating apparatus according to the present invention, when the pump is driven in a state where a voltage is applied and treated water, such as water or saline, flows from the water storage tank to both electrode chambers of the electrolytic cell, the electrolytic water is generated in the electrolytic cell. The treated water is electrolyzed, and the acidic ion water with increased hydrogen ions is discharged from the electrode chamber of the positive electrode, and the alkaline ion water with increased hydroxyl ions is discharged from the electrode chamber of the negative electrode. Ion water is guided to a desired location through each discharge pipe, each switching valve, and each outlet pipe.

In the electrolyzed ionic water generating apparatus according to the present invention, the voltage application to both electrodes is stopped for a set time by the voltage application stopping means when the voltage application is switched by the electrode switching means. The pump is temporarily stopped and both switching valves are switched. Therefore, at this time, the alkaline ionized water remaining in one outlet pipe is automatically supplied to the discharge pipe and the electrode chamber in which the acidic ionized water remains by a head, and the acidic ionized water remaining in the other outlet pipe is automatically supplied. Is automatically supplied to the discharge pipe and the electrode chamber where the alkaline ionized water remains by a head, and the water in each flow passage including each electrode chamber is quickly neutralized or deionized.

[0007]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an electrolytic ionized water generator according to the present invention, which is provided with a water storage tank 10 for storing a required amount of treated water (tap water). The water storage tank 10 includes a water level sensor 11 connected to the control device 100 therein, and a signal from the water level sensor 11 opens and closes an electromagnetic on-off valve V1 provided in the water pipe 19 so that the water level is within a predetermined range. It is configured to be maintained. The water storage tank 10 has an overflow pipe 1
2 and the two inlets 31 of the electrolytic cell 30
a and 31b respectively connected to a pair of connecting pipes 21 and 21
2 are mounted, and electric pumps P 1, P whose operation is controlled by the control device 100 are connected to the respective connection pipes 21, 22.
2 and flow control valves V2 and V3 that can be manually adjusted, respectively, so that substantially the same amount of treated water
It is configured to be supplied to both inflow ports 31 a and 31 b of the electrolytic cell 30 through the 22.

The electrolytic cell 30 has a pair of inlets 31a, 31
b and a tank body 31 having a pair of outlets 31c and 31d
And first and second electrodes 32 and 33 disposed opposite to each other in the tank body 31, and first and second electrodes disposed between these two electrodes 32 and 33 to accommodate the electrodes 32 and 33, respectively. Electrode room 3
4, 35 comprising a diaphragm 36 forming
Each of the electrodes 32 and 33 is formed by baking platinum plating or platinum iridium on the surface of a titanium base material. The first electrode chamber 34 has an inlet 31 a and an outlet 31.
c communicates, and the second electrode chamber 35 communicates with the inflow port 31b and the outflow port 31d. In addition, each outlet 31c, 31d
Are connected to first and second discharge pipes 23 and 24. The first discharge pipe 23 is connected to the first or second discharge pipe 25 or 26 by a first switching valve V4, and the first discharge pipe 23 is connected to the first discharge pipe 25 or 26. The second discharge pipe 24 is configured to communicate with the second or first outlet pipe 26 or 25 by the second switching valve V5.

The first outlet pipe 25 has a rising part 25a rising above the water surface of the water storage tank 10 and an opening 25b communicating with the atmosphere.
4 and V5, respectively, and the opening 25b is
As shown by, the upper portion of the first storage tank 41 disposed above the water surface of the water storage tank 10 by a predetermined amount communicates with the atmosphere. Further, the second outlet pipe 26 is connected to the water storage tank 1.
0 and an opening 26b communicating with the atmosphere. The opening 26b is connected to the two switching valves V4 and V5 at the branched lower ends.
2 communicates with the atmosphere at an upper portion in the second storage tank 42 which is disposed a predetermined amount above the water surface of the water storage tank 10 as shown in FIG.

The first storage tank 41 stores a required amount of alkaline ionized water. The first storage tank 41 is provided with a water level sensor 43 and an overflow pipe 44. The alkaline ionized water in the first storage tank 41 is driven by appropriately driving the electric pump P3. It can be fed to a desired location. Also,
The second storage tank 42 stores a required amount of acidic ion water, and includes a water level sensor 45 and an overflow pipe 46.
Is provided, and the acidic ion water inside is supplied with an electric pump P
4 can be fed to a desired location by appropriately driving it.

Each of the switching valves V4 and V5 is a valve that withstands acid and alkali, is driven by an electric motor (not shown), and is controlled by the control device 100 in a state shown by a virtual line in FIG. When a positive signal is received, the state is switched to the state shown by the solid line in FIG. 1 for a predetermined time (approximately 5 seconds), and when a reverse signal is received from the control device 100 in the state shown by the solid line in FIG. 1 (approximately 5 seconds), the state is switched to the state shown by the imaginary line in FIG. 1, and a sensor (not shown) determines whether the state is shown by the virtual line or the solid line in FIG. ).

The electrode switch 50 switches the direction of the DC voltage applied to both electrodes 32 and 33 in response to a signal from the control device 100, and controls the DC voltage in the state shown by the phantom line in FIG. When a positive signal is received from the device 100, the negative electrode of the power supply circuit 60 is connected to the electrode 32, the positive electrode is connected to the electrode 33, and the reverse signal is transmitted from the control device 100 in the state shown by the solid line in FIG. When receiving the signal, the negative electrode of the power supply circuit 60 is connected to the electrode 33 and the positive electrode is connected to the electrode 32, and is in the state shown by the virtual line or the solid line in FIG. Is detected by a sensor (not shown). The power supply circuit 60 converts an AC voltage into a DC voltage having a predetermined value.
When the F signal is received, the DC voltage between the negative electrode and the positive electrode becomes zero, and when the ON signal is received from the control device 100, a DC voltage of a predetermined value is applied between the negative electrode and the positive electrode. It has become.

The control device 100 includes a positive application switch 101, a reverse application switch 102, and a stop switch 103.
3 and the signals from the water level sensors 11, 43, 45 and the signals from the sensors for detecting the state of the two switching valves V4, V5 and the sensor for detecting the state of the electrode switch 50, the electromagnetic on-off valve V1, Both electric pumps P1, P2, both switching valves V
4, V5, the operation of the electrode switch 50, the power supply circuit 60, and the like.
By operating the button 103, each operation described below can be obtained.

When the electrolytic ionized water generator is stopped,
The electromagnetic on-off valve V1 is closed, the electric pumps P1 and P2 are stopped, the electrode switch 50 and the switch valves V4 and V5 are maintained in the state of the solid line or the virtual line in FIG. When the positive voltage generation switch 101 of the control device 100 is operated in this stopped state, the electrode switch 50 and both the switching valves V4 and V5 are shown by solid lines in FIG. As soon as the state is maintained, the electrode switching device 50 and both switching valves V
When V4 and V5 are held in the state shown by the phantom line in FIG. 1, after the electrode switch 50 and both switching valves V4 and V5 are switched to the state shown by the solid line in FIG.
0, an ON signal is output to both electric pumps P1 and P2 to start both electric pumps P1 and P2, and an ON signal is output from control device 100 to power supply circuit 60 to connect between a negative electrode and a positive electrode of power supply circuit 60. A DC voltage having a predetermined value is applied to the electrolytic cell 3 via the electrode switch 50.
A positive voltage is applied to both zero electrodes 32 and 33.

For this reason, as shown in FIG. 3, the treated water in the water storage tank 10 passes through each of the connection pipes 21 and 22, each of the electric pumps P1 and P2, and each of the flow control valves V2 and V3, so that each of the water in the electrolytic tank 30 is removed. While being supplied to the electrolysis chambers 34 and 35,
The treated water is electrolyzed in the electrolytic cell 30, and alkaline ionized water having increased hydroxyl ions is supplied from the electrode chamber 34 of the negative electrode 32 to the first discharge pipe 23, the first switching valve V 4, and the first switching valve V 4.
Stored in the first storage tank 41 through the outlet pipe 25,
From the electrode chamber 35 of the positive electrode 33, acidic ionized water in which hydrogen ions have been increased is supplied to the second discharge pipe 24 and the second switching valve V.
5 and is stored in the second storage tank 42 through the second outlet pipe 26.

When the water level in the water storage tank 10 reaches the lower limit of the set range due to the above-described operation of generating ionic water by applying a positive voltage, the water level sensor 11 is activated, and based on this, the control device 100 opens the electromagnetic on-off valve V1. A signal is output, the electromagnetic on-off valve V1 is opened, and tap water is supplied to the water storage tank 10. When the water level in the water storage tank 10 reaches the upper limit of the set range due to the supply of tap water, the water level sensor 11 is activated, and based on the water level sensor 11, the control device 100 sends the electromagnetic on-off valve V1.
, The solenoid on-off valve V1 is closed and supply of tap water stops.

When the water levels in both storage tanks 41 and 42 reach the upper limit of the set range and the two water level sensors 43 and 45 are activated by the above-described operation of generating the ionic water by applying the positive voltage, the control device is controlled based on this. 100 outputs an OFF signal to both electric pumps P1 and P2 and the power supply circuit 60, so that the electric pumps P1 and P2 are stopped and the DC voltage between the negative electrode and the positive electrode of the power supply circuit 60 is reduced to zero. The operation of generating ionic water by application is interrupted. When the ionized water in each of the storage tanks 41 and 42 is consumed and the water level in at least one of the storage tanks 41 and 42 reaches the lower limit of the set range, the water level sensors 43 and 45 are used.
Operates, and on the basis of this, an ON signal is output from the control device 100 to the electric pumps P1 and P2, and the electric pump P
1 and P2 are activated, an ON signal is output from the control device 100 to the power supply circuit 60, and a predetermined DC voltage is applied between the minus electrode and the plus electrode of the power supply circuit 60. Water production operation is again obtained.

By the way, when the reverse voltage application generation switch 102 of the control device 100 is operated in the ion water generation operation state by the application of the positive voltage, the control device 100 turns off the power supply circuit 60 and the electric pumps P1 and P2. A signal is output respectively, and both switching valves V4 and V5 and an electrode switching device 5
0, a reverse voltage signal is output to each of them, the DC voltage between the negative electrode and the positive electrode of the power supply circuit 60 is reduced to zero, the electric pumps P1 and P2 are stopped, and the switching valves V4 and V5 are set to a predetermined value. At the time shown in FIG. 3, the state of FIG. 3 is switched to the state of FIG. 4, and the electrode connection is switched by the electrode switch 50 from the state of FIG. 3 to the state of FIG. The electrode 33 is connected to the minus electrode while being connected to the plus electrode.

Therefore, at the time when the switching valves V4 and V5 are switched, as shown in FIG. 4, while the voltage application is stopped and both electric pumps P1 and P2 are stopped, the first outlet pipe is stopped. The alkaline ionized water in the second electrode chamber 25 is supplied to the second electrode chamber 35 through the second switching valve V5 and the second discharge pipe 24 by a head, and the acidic ionized water in the second electrode chamber 35 is supplied to the flow control valve V3 and the electric pump P2. , Connecting pipe 22
Flows back into the water storage tank 10 and the acidic ion water in the second outlet pipe 26 is supplied to the first electrode chamber 34 through the first switching valve V4 and the first discharge pipe 23 by a head,
In addition, the alkaline ionized water in the first electrode chamber 34 flows back into the water storage tank 10 through the flow control valve V2, the connection pipe 21, and the electric pump P1, and is connected to each of the discharge pipes 23 and 24 including both the electrode chambers 34 and 35. The water in each passage between the pipes 21 and 22 is quickly neutralized or deionized. The water flowing back into the water storage tank 10 is
When the internal water level becomes equal to or higher than the upper end level of the overflow pipe 12, the treated water in the water storage tank 10 is discharged to the outside through the overflow pipe 12 as shown in FIG.

Thereafter (to be exact, an OFF signal is output to the power supply circuit 60 and the electric pumps P1 and P2, respectively, and a reverse signal is output to both the switching valves V4 and V5 and the electrode switch 50, respectively. When a preset time has elapsed), the control device 100 outputs an ON signal to the power supply circuit 60 and the electric pumps P1 and P2, and a predetermined DC voltage is applied between the negative electrode and the positive electrode of the power supply circuit 60. At the same time, both electric pumps P1 and P2 are started, and as shown in FIG. 5, the treated water in the water storage tank 10 is filled with the connection pipes 21 and 22, the electric pumps P1 and P2, and the respective flow control valves V2 and V2. V3 is supplied to each of the electrolysis chambers 34 and 35 of the electrolysis tank 30, and the acid which has been electrolyzed in the electrolysis chamber 30 and has increased hydrogen ions from the electrode chamber 34 of the positive electrode 32. Ion water is stored in the tank 42 through the first discharge pipe 23, the first switching valve V 4, and the second outlet pipe 26, and alkaline ion water with increased hydroxyl ions is discharged from the electrode chamber 35 of the negative electrode 33. 2 discharge pipe 24
Tank 41 through the second switching valve V5 and the first outlet pipe 25.
Stored inside. By the way, at the beginning of this operation,
The electrode 33 is not exposed to ionized water having a high hydrogen ion concentration, and the deposits such as calcium and sodium are peeled off from the electrode 32 and discharged together with the treated water to the outside of the electrolytic cell 30 to be subjected to reverse electric cleaning.

It should be noted that the operation when the water level in the water storage tank 10 reaches the lower limit of the set range in the ion water generation operation state by the application of the reverse voltage and the operation of both the storage tanks 41 and 4
The operation in the case where the water level in 2 reaches the upper limit of the set range is substantially the same as the operation in the above-described operation state of the ionic water generation by application of the positive voltage, and the ionic water generation by the application of the reverse voltage described above. When the positive-electrode application switch 101 of the control device 100 is operated in the operation state, the reverse-electricity application switch 102 of the control device 100 is operated in the ion water generation operation state by the above-described positive voltage application. The operation is substantially the same as that in the case, and it can be easily understood from the above operation description.

Further, the stop switch 103 of the control device 100 is operated in the ion water generation operation state by the application of the positive voltage.
Is operated, the controller 100 turns off the power supply circuit 60 and the electric pumps P1 and P2 in the same manner as when the reverse voltage application generation switch 102 is operated in the ion water generation operation state by the application of the positive voltage. A signal is output, and a reverse signal is output to both the switching valves V4, V5 and the electrode switch 50, so that the DC voltage between the negative electrode and the positive electrode of the power supply circuit 60 is reduced to zero. The pumps P1 and P2 are stopped, and both switching valves V4 and
V5 is switched to the state of FIG. 4 at a predetermined time, the electrode connection is switched to the state of FIG. 4 by the electrode switch 50, and the electrode 32 of the electrolytic cell 30 is connected to the positive electrode of the power supply circuit 60. The electrode 33 is connected to the negative electrode,
Thereafter, this state is maintained. Therefore, the electrolytic ionized water generator is stopped after the operation until the above-described backflow operation of water is completed. The operation when the stop switch 103 is operated in the ion water generation operation state by application of the reverse voltage is substantially the same as the operation when the stop switch 103 is operated in the ion water generation operation state by the application of the positive voltage. Since the operation is the same as the above and it can be easily understood from the above-described operation description, the description is omitted.

In the above embodiment, the present invention was carried out using tap water as treated water.
It is also possible to carry out the present invention by using a saline solution obtained by the apparatus disclosed in Japanese Patent Application Laid-Open Publication No. H10-15095 as treated water. Also,
Although the present invention was implemented by configuring the treatment water to be supplied to the electrolytic cell 30 by the pair of electric pumps P1 and P2, the treatment water was supplied to the electrolytic cell 30 by the single electric pump. It is also possible to configure and carry out the present invention.

Further, in the above embodiment, both outlet pipes 2
The rising portions 25a and 26a are configured to be sufficiently long to secure a sufficient flow rate, and when the voltage application is switched by the electrode switching device 50, the alkaline ionized water remaining in one of the outlet pipes is discharged while the acidic ionized water remains. It is automatically supplied by a head toward the tube and the electrode chamber, and the acidic ion water remaining in the other outlet pipe is automatically supplied by a head toward the discharge pipe and the electrode chamber where the alkaline ion water remains. The water in each flow passage including the electrode chambers is quickly neutralized or deionized. However, as shown in FIG. It is also possible to implement the present invention by providing auxiliary tanks 25c and 26c capable of storing a required amount of water in the middle, respectively.
The length of the rising portions 25a, 26a of the 26 can be shortened, and a compact configuration can be achieved.

In the above embodiment, each outlet pipe 2
As shown in FIG. 2, the openings 25b and 26b of the storage tanks 41 and 42 are communicated with the atmosphere in the upper portions of the storage tanks 41 and 42. However, as shown by the imaginary lines in FIG. It is also possible to divide the upper ends of the outlet pipes 25 and 26 up and down so that the lower opening is immersed in ionic water and the upper opening communicates with the atmosphere. In this case, it is necessary to set the level of the upper opening so that ion water is not ejected in consideration of the discharge capacity of the electric pumps P1 and P2. In the case where the configuration shown by the imaginary line in FIG. 2 is adopted, the length of the branch pipe extending below the upper end of each of the outlet pipes 25 and 26 is increased, and the configuration shown by the solid line in FIG. In the case where the water storage tank 10 is adopted, the storage tanks 41 and 42 are arranged at the same level or a lower level as the water storage tank 10 by extending the pipe portions extending below the upper ends of the outlet pipes 25 and 26. Is also possible.

In implementing the above embodiment, when the DC voltage between the negative electrode and the positive electrode of the power supply circuit 60 is reduced to zero (simultaneously with stopping the application), both electric pumps P
1, P2 is stopped and switching of both switching valves V4, V5 is started, so that each electrode chamber is neutralized or ionized in a short time, or both switching valves V4, V5 A predetermined DC voltage is applied between the negative electrode and the positive electrode of the power supply circuit 60 with a delay of a predetermined time from the time point when the switching of the switch is completed, so that each electrode chamber is reliably neutralized or deionized. It is possible to set an appropriate timing such as the above.

[0027]

In summary, in the electrolytic ionic water generating apparatus according to the present invention, when the voltage is switched by the electrode switching means, the alkaline ionic water remaining in one of the outlet pipes is replaced with the discharge pipe and the electrode chamber in which the acidic ionic water remains. And the acidic ion water remaining in the other outlet pipe is automatically supplied by a head toward the discharge pipe and the electrode chamber in which the alkaline ion water remains, and each of the electrode chambers Since the water in each flow path including is rapidly neutralized or reverse ionized, it is possible to suppress the electrode in the electrode chamber that houses the electrode switched from plus to minus from being attacked by hydrogen ions, The life of the electrode can be extended.

Further, as described above, the electrolytic ionic water generating apparatus according to the present invention automatically supplies each ionic water remaining in each outlet pipe to each electrode chamber by utilizing a head. It has a simple configuration, can be manufactured at low cost, has few failures, and has extremely good maintainability. Also,
When an auxiliary tank portion is provided at a portion of each outlet pipe above the water storage tank, a necessary amount of ion water can be stored in the auxiliary tank portion, and the length of the rising portion of each outlet pipe can be increased. And can be made compact.

[Brief description of the drawings]

FIG. 1 is a view showing one embodiment of an electrolytic ionized water generator according to the present invention.

FIG. 2 is a diagram showing a configuration of both storage tanks connected to the electrolytic ionized water generator shown in FIG.

FIG. 3 is a diagram showing an operation state of generating ionic water by applying a positive voltage to the electrolytic ionic water generating apparatus shown in FIG. 1;

4 is an operation explanatory diagram when a reverse voltage application generation switch is operated in the state of FIG. 3;

FIG. 5 is a diagram illustrating an operation state of generating ionic water by applying a reverse voltage to the electrolytic ionic water generating apparatus illustrated in FIG. 1;

FIG. 6 is a view showing a modification of the electrolytic ionized water generator shown in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... water storage tank, 21, 22 ... connection pipe, 23 ... 1st discharge pipe, 24 ... 2nd discharge pipe, 25 ... 1st discharge pipe, 26 ... 2nd discharge pipe, 25a, 26a ... rise part, 25b, 26b …
Opening, 25c, 26c: auxiliary tank part, 30: electrolytic cell,
32 first electrode, 33 second electrode, 34 first electrode chamber
35: second electrode chamber, 36: diaphragm, 50: electrode switcher, 6
0: power supply circuit, 100: control device, P1, P2: electric pump, V4: first switching valve, V5: second switching valve.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) C02F 1/46

Claims (2)

(57) [Claims] 1. A water storage tank for storing treated water such as water or salt water, and first and second electrodes made of a metal material are opposed to each other inside, and a diaphragm is provided between these two electrodes. First and second electrode chambers for accommodating each electrode are formed, and an electrolytic cell in which treated water flows into and out of both electrode chambers, and treated water in the water storage tank is supplied to both electrode chambers of the electrolytic cell. A pump for pumping, a first discharge pipe connected to the first electrode chamber for discharging electrolytic ionic water generated in the same electrode chamber, and a pump connected to the second electrode chamber and generated in the same electrode chamber. A second discharge pipe for discharging the electrolyzed ionized water, a first rising part rising above the water surface of the water storage tank, and a first part connected to the first and second discharge pipes having an opening communicating with the atmosphere.
The first and second outlet pipes having an outlet communicating with the atmosphere and a rising portion rising above the water surface of the water storage tank;
A second outlet pipe connected to the outlet pipe, and a first switch interposed at a connection portion between the first outlet pipe and the two outlet pipes to communicate the first outlet pipe to the first or second outlet pipe. A valve, a second switching valve interposed at a connection portion between the second discharge pipe and the two discharge pipes to communicate the second discharge pipe to the first or second discharge pipe, and a second switching valve applied to the two electrodes. An electrode switching means for switching between forward and reverse DC voltage, a voltage application stopping means for stopping voltage application to both electrodes for a set time when the voltage application is switched by the electrode switching means, and a voltage application stopping means for stopping the voltage application by the voltage application stopping means. An electrolytic ionized water generator comprising an operation control means for temporarily stopping a pump and switching between the two switching valves. 2. The electrolytic ionic water generating apparatus according to claim 1, wherein an auxiliary tank portion is provided at a position of each of the outlet pipes located above the water storage tank.