JPH08229559A - Electrolytic ionized water generator - Google Patents

Abstract

PURPOSE: To reduce the amt. of the neutralized water which is the mixture of the ionized waters generated by reverse-voltage cleaning remaining in a water storage tank and to supply the raw water of about the same quality as that in the normal running to the electrolytic cell from the water storage tank even at the initial stage of the regenerative running after reverse-voltage cleaning. CONSTITUTION: A motor-driven pump P1, an electrode switching means 110 and a solenoid valve V1 are controlled to keep the pump P1 driven and to maintain the switching means 110 in a normal-voltage state, and the opening degree of the solenoid valve V1 is controlled based on a signal from a water level sensor 11 to keep the water level of a tank 10 in a set range. When the normal running is stopped, the pump P1 is stopped, the switching means 110 is switched to a reverse-voltage state when the water remaining in the first and second discharge pipes 37 and 38 is allowed to flow back to the tank 10, and the solenoid valve V1 is opened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrolytic ion water generator for electrolyzing raw water such as water or salt water to generate electrolytic ion water.

[0002]

2. Description of the Related Art As one of electrolyzed ionized water producing devices, during production operation, raw water stored in a water storage tank is supplied by an electric pump to an electrolysis tank arranged above the water storage tank and electrolyzed in the electrolysis tank. Ion water is discharged upward from the electrolyzer, and when the production operation is stopped, it is applied to the electrode in the electrolyzer at the time of backflow due to the natural drop from the electrolyzer to the water storage tank obtained by stopping the electric pump. Reverse current cleaning is performed by switching the DC voltage between forward and reverse (calcium that adheres in layers on the surface of the negative electrode,
There is one in which a scale of sodium or the like is electrically peeled off from the electrode. For example, JP-A-6-3045
No. 61 publication.

[0003]

By the way, in the above-mentioned electrolytic ionized water producing apparatus of Japanese Patent Laid-Open No. 6-304561, neutralized water mixed with each ionized water produced by reverse electrolysis washing flows into the water storage tank. However, this may change the quality of the raw water in the water storage tank, and at the beginning of the regeneration operation after the reverse electrolysis cleaning in which this raw water is consumed, the ion water different from each ion water obtained during the normal production operation is Water may be obtained. The present invention has been made to address the above-described problems, and an object thereof is to reduce the amount of neutralized water mixed with each ionized water produced by reverse electrolysis cleaning that remains in a water storage tank. An object of the present invention is to provide an electrolyzed ionized water production apparatus in which raw water having substantially the same water quality as that in the normal production operation is supplied from the water storage tank to the electrolytic cell even in the initial stage of the regeneration operation after electric cleaning.

[0004]

In order to achieve the above-mentioned object, in the present invention, the electrolytic ionized water producing apparatus is provided with a water level sensor and an overflow pipe to store water or raw water such as salt water. A tank, a water supply pipe which is provided with an electromagnetic on-off valve and which supplies raw water to the water storage tank, a first electrode and a second electrode which are internally opposed to each other, and a diaphragm is disposed between these electrodes. An electrolytic cell having first and second electrode chambers for accommodating the respective electrodes and allowing raw water to flow into and out of these electrode chambers, and raw water in the water storage tank is pressure-fed to both electrode chambers of the electrolytic cell. Electric pump,
A first part for connecting to the first electrode chamber and discharging electrolyzed ionic water produced in the first electrode chamber, having a rising portion rising above the water surface of the water storage tank and an opening capable of communicating with the atmosphere.
A discharge pipe, a rising portion rising above the water surface of the water storage tank, and an opening capable of communicating with the atmosphere and connected to the second electrode chamber to discharge electrolytic ion water generated in the second electrode chamber; 2 The discharge pipe, the electrode switching means for switching between direct and reverse of the DC voltage applied from the power supply circuit to the both electrodes, the operation of the electric pump, the electrode switching means, and the electromagnetic opening / closing valve are controlled, and at the time of generating operation. , Maintaining the electric pump in a driving state and maintaining the electrode switching means in a positive electric state, and controlling the opening / closing of the electromagnetic opening / closing valve based on a signal from the water level sensor to set the water level of the water storage tank within a set range. When the generation operation is stopped, the electric pump is stopped, and when the water remaining in the first and second discharge pipes flows back to the water storage tank, the electrode switching means is switched to a reverse electricity state. It was also configured to include the operation control means for opening the solenoid valve.

[0005]

In the electrolytic ionized water producing apparatus according to the present invention, the operation control means maintains the electric pump in the driven state and the electrode switching means in the positive electric state during the production operation. The electromagnetic on-off valve is controlled to open and close based on the signal of, to maintain the water level in the water storage tank within the set range. For this reason, the raw water in the water storage tank is supplied to the electrolytic cell by the electric pump and electrolyzed in the electrolytic cell, and the ion water thus obtained is discharged to a desired location through the respective discharge pipes.

Further, when the generation operation is stopped, the operation control means stops the electric pump and switches the electrode switching means to a reverse electric state when the water remaining in the first and second discharge pipes flows back to the water storage tank, and the electromagnetic switching is performed. Open the on-off valve. For this reason, the reverse electrolysis cleaning operation is obtained at the time of backflow due to the natural fall into the water storage tank obtained by stopping the electric pump, and the electrolytic cell is cleaned, and the solenoid opening / closing valve opens to the water supply pipe to the water storage tank. The neutralized water mixed with the respective ionized water generated by the reverse electrolysis cleaning by the raw water is diluted in the water storage tank to be diluted water, and the surplus is discharged from the water storage tank to the outside through the overflow pipe. Therefore, it is possible to reduce the amount of the above-mentioned neutralized water remaining in the water storage tank, and even in the initial stage of the regeneration operation after the reverse electrolysis cleaning, raw water having a water quality substantially equal to the water quality during the normal production operation can be obtained. From the initial stage of the regeneration operation after the reverse electrolysis cleaning, electrolytic ionized water having substantially the same characteristics as those in the normal generation operation can be obtained.

At this time, foreign matter staying at the bottom of the water storage tank due to the supply of raw water from the water supply pipe obtained by opening the electromagnetic on-off valve to the water storage tank (peeling from the electrode of the electrolytic cell by reverse electrolysis cleaning (Including the scale that has flowed into the tank) can be stirred and discharged together with the above-described dilution water to the outside of the water storage tank. Therefore, it is possible to prevent mechanical troubles such as foreign matter clogging the electric pump or the electrolytic cell during the regeneration operation after the reverse electrolysis cleaning.

[0008]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an electrolytic ion water generator according to the present invention, which is provided with a water storage tank 10 for storing a required amount of raw water (tap water). The water storage tank 10 is internally equipped with a water level sensor 11 (which detects an upper limit water level and a lower limit water level) connected to the control device 100, and a signal from the water level sensor 11 causes a water supply pipe 19 (connected to a water pipe). The normally closed electromagnetic on-off valve V1 which is opened by energizing the water storage tank 1 is opened and closed.
The water level within 0 is configured to be maintained within a predetermined range. In addition, the water tank 10 has an upper opening at the electrolytic cell 30.
An overflow pipe 12 is provided below the bottom wall of the electrolysis tank by a predetermined amount L, and both inlets 3 of the electrolytic cell 30 are provided.
1a, 31b is connected to a connecting pipe 13 which is branched and connected. The connecting pipe 13 is provided with an electric pump P1 whose operation is controlled by the control device 100 and manually adjustable flow rate adjusting valves V2, V3. Almost the same amount of raw water is provided through the connecting pipe 13 and both inlets 3 of the electrolytic cell 30.
It is configured to be supplied to 1a and 31b.

The electrolytic cell 30 includes a pair of inlets 31a and 31a.
a resin tank body 31 having b in the lower part and a pair of outlets 31c, 31d in the upper part, a pair of electrodes 32 and 33 arranged to face each other in the tank body 31, and both electrodes 3
It is constituted by a diaphragm 36 which is disposed between the electrodes 2 and 33 and forms the electrode chambers 34 and 35 which accommodate the electrodes 32 and 33. The electrodes 32 and 33 are plated with platinum on the surface of a titanium base material or What is made by firing platinum iridium is adopted, and the inlet 31a and the outlet 31c communicate with the left electrode chamber 34, and the inlet 31 with the right electrode chamber 35.
b and the outlet 31d communicate with each other.

Further, discharge pipes 37, 38 are connected to the respective outlets 31c, 31d, and the discharge pipes 37, 38 have rising portions 37a, 38a rising upward above the water surface of the water storage tank 10. As shown in FIG. 2, the pipes are extended to the positions of the sinks 80 where the ion water is used, and the rising portions 37a of the discharge pipes 37 and 38 are
Storage tank portions 37b and 38b (which can be made larger, smaller, or eliminated as necessary) are formed at 38a. Further, the respective rising portions 37a, 38a provided at the intermediate portions of the discharge pipes 37, 38 have upper ends communicating with the atmosphere through the ventilation thin pipes 37c, 38c, and the outlet ends of the discharge pipes 37, 38 are sinks. Even if the device is submerged in water 80, a function (for example, occurrence of a siphon phenomenon when the device is stopped) does not occur.

The electrodes 32 and 33 are connected to a power supply circuit 120 via an electrode switch 110. Electrode changer 11
0 represents both electrodes 32, in response to a signal from the control device 100.
The DC voltage applied to the switch 33 is switched between normal and reverse, and when a positive electric signal is received from the control device 100 in the state shown by the phantom line in FIG. Is connected to the electrode 32, the positive electrode is connected to the electrode 33, and when a reverse signal is received from the control device 100 in the state shown by the solid line in FIG. The negative electrode is connected to the electrode 33 and the positive electrode is connected to the electrode 3.
It is designed to connect to 2. The power supply circuit 120 is for converting an AC voltage into a DC voltage having a predetermined value, so that when the OFF signal is received from the control device 100, the DC voltage between the negative electrode and the positive electrode becomes zero, and from the control device 100. When receiving the ON signal, a DC voltage having a predetermined value is applied between the minus electrode and the plus electrode.

The control device 100 includes a microcomputer (not shown) that executes a program corresponding to the flowchart of FIG. 3 and a program corresponding to the flowcharts of FIGS. 4 and 5, and the power switch shown in FIG. The operation of the electromagnetic on-off valve V1 is controlled based on the signal from the water level sensor 11 when the power switch 101 (which is an ON-OFF changeover switch) is turned on, and is shown in FIG. 2 when the power switch 101 shown in FIG. 1 is turned on. The operation of the electric pump P1, the electrode switching device 110, the power supply circuit 120, the electromagnetic on-off valve V1 and the like is controlled based on the operation of the generation switch 102 (which is an ON-OFF switching switch), which will be described below. Each operation is performed.

In the present embodiment configured as described above, when the power switch 101 is turned on, one microcomputer of the control device 100 starts executing the program in step 201 of FIG.
At, it is determined whether or not the water level in the water storage tank 10 is less than or equal to the lower limit water level based on the signal from the water level sensor 11 of the water storage tank 10. At this time, if the water level in the water storage tank 10 is not lower than or equal to the lower limit water level, it is determined as "NO" in step 202 and the process of step 202 is repeatedly executed, and if the water level in the water storage tank 10 is less than or equal to the lower limit water level. Is determined to be “YES” in step 202, step 203,
The processing of 204 is executed.

In step 203 described above, the solenoid on-off valve V
A valve open signal is output to 1. Therefore, the electromagnetic opening / closing valve V1 is kept open and the raw water is supplied to the water storage tank 10 through the water supply pipe 19. In step 204 described above, it is determined based on the signal from the water level sensor 11 whether the water level in the water storage tank 10 is equal to or higher than the upper limit water level. At this time, if the water level in the water storage tank 10 is not higher than or equal to the upper limit water level, it is determined to be “NO” in step 204 and the process of step 204 is repeatedly executed, and if the water level in the water storage tank 10 is equal to or higher than the upper limit water level. , Step 2
After the determination of "YES" at 04 and the processing of step 205 is executed, the processing returns to step 202 described above. In step 205 described above, a valve closing signal is output to the electromagnetic opening / closing valve V1. Therefore, the electromagnetic on-off valve V1 is closed and maintained, and the supply of raw water from the water supply pipe 19 to the water storage tank 10 is stopped. As a result, the water level in the water storage tank 10 is maintained within the set range. The execution of the program corresponding to the flowchart of FIG. 3 is omitted in the drawing, but by turning off the power switch 101,
The processing is ended after the same processing as step 205 is executed.

Further, in the present embodiment configured as described above, when the power switch 101 is turned on, another microcomputer of the control device 100 starts execution of the program in step 301 of FIG. Step 30
At 2, it is determined whether or not the generation switch 102 is turned on. At this time, if the generation switch 102 has not been turned on, it is determined as “NO” in step 302 and the process of step 302 is repeatedly executed. If the generation switch 102 has been turned on, in step 302. If YES is determined in step 303,
The processes 304, 305, and 306 are executed.

In step 303, the electric pump P is used.
1, a drive signal is output, a positive electric signal is output to the electrode switch 110 in step 304, and an ON signal is output to the power supply circuit 120 in step 305. Therefore, when the generation switch 102 is turned on, the electric pump P1 is driven and maintained by executing step 303, and by executing steps 304 and 305, both electrodes of the power supply circuit 120 are switched to the solid line electrode switch 110.
A positive DC voltage of a predetermined value is applied to both electrodes 32, 33 of the electrolytic cell 30 via the. Therefore, the raw water in the water storage tank 10 is passed through the connecting pipe 13 and the flow rate adjusting valves V2 and V3 by the electric pump P1 to the electrolysis chambers 3 of the electrolysis tank 30.
4, 35, and raw water is electrolyzed in the electrolytic cell 30 to generate each ionic water.
The alkaline ionized water with increased hydroxide ions is sent from the electrode chamber 34 of the above to the sink 80 through the discharge pipe 37, and the acidic ionized water with increased hydrogen ions is discharged from the electrode chamber 35 of the positive electrode 33 through the discharge pipe 38. It is sent to the sink 80.

In step 306 described above, it is determined whether the generation switch 102 has been turned off. At this time, if the generation switch 102 is not off-operated, it is determined to be “NO” at step 306 and the process of step 306 is repeatedly executed. If the generation switch 102 is off-operated, at step 306. It is determined to be "YES", and the processing from step 307 onward in FIG. 5 is executed.

In step 307 of FIG. 5, the power supply circuit 12
The OFF signal is output to 0, the timer included in the control device 100 is reset in step 308, and the value t indicating the elapsed time is set to zero. In step 309, it is determined whether the value t of the timer is equal to or more than the first set value t1. Is determined.

By the way, while the elapsed time after execution of step 309 is less than the first set value t1, step 309
When it is determined to be “NO” at step 309 and the process of step 309 is repeatedly executed, and when the elapsed time after the execution of step 308 reaches the first set value t1, “Y” at step 309.
ES "and steps 310, 311, 312
The processes 313, 314, and 315 are sequentially executed. The above-mentioned first set value t1 is the amount of water supplied to the electrolytic cell 30 by the electric pump P1 per unit time and both the discharge pipes 3
7 and 38 are set in consideration of the water storage capacities of the rising portions 37a and 38a, and when "YES" is determined in step 309, the rising portions 37a and 38a of the electrolytic cell 30 and both discharge pipes 37 and 38 are set. It is designed to be filled with unelectrolyzed raw water.

In step 310 described above, a reverse signal is output to the electrode switch 110, and in step 311
Then, an ON signal is output to the power supply circuit 120, and in step 312, a stop signal is output to the electric pump P1.
Therefore, by executing step 310, the electrode switch 1
10 is switched from the solid line state to the virtual line state and maintained, and by executing step 311, both electrodes of the power supply circuit 120 are switched from the virtual line state to the electrolytic cell 3 via the electrode switch 110 in the virtual line state.
A direct current voltage of a predetermined value is applied to the both electrodes 32 and 33 of 0 and a reverse voltage is maintained. Further, the electric pump P1 is stopped and maintained by executing step 312. For this reason, from the rising portions 37a, 38a of both discharge pipes 37, 38 to the electrolytic cell 3
0, the connecting pipe 13 and the electric pump P1 in the stopped state are subjected to back electrolysis cleaning in a state where back flow occurs in the water storage tank 10 due to free fall, and scales such as calcium and sodium are peeled off from the electrode 32 of the electrolytic cell 30. It is discharged to the water storage tank 10 together with the electrolyzed water. It should be noted that before the reverse electrolysis cleaning is started, the above-mentioned steps 307 and 30 are performed.
8 and 309, the electrolytic cell 30 and both discharge pipes 37 and 3
Since the non-electrolyzed raw water is filled in the rising portions 37a, 38a of No. 8, the electrode 33 switched from positive to negative at the start of reverse electrolysis cleaning is exposed to ion water having a high hydrogen ion concentration. Not the electrode 3
Hydrogen brittleness, which shortens the life of No. 3, is suppressed. Further, when the water level in the water storage tank 10 becomes equal to or higher than the upper end opening of the overflow pipe 12 due to the above-described backflow, the water is discharged to the outside through the overflow pipe 12.

In step 313 executed after execution of step 312 described above, a valve open signal is output to the electromagnetic on-off valve V1, and in step 314 the timer described above is reset so that the value t indicating the elapsed time is zero. Further, in step 315, it is determined whether or not the value t of the timer is equal to or larger than the second set value t2. By the way, while the elapsed time after execution of step 314 is less than the second set value t2, it is determined to be “NO” in step 315, the processing of step 315 is repeatedly executed, and step 31
When the elapsed time after execution of step 4 reaches the second set value t2, it is determined as “YES” in step 315 and step 31
The processing of 6,317 is executed. The second set value t described above
2 is the amount of water that flows back from the electrolytic cell 30 to the water storage tank 10 per unit time and the rising portions 37a of the discharge pipes 37 and 38,
It is set in consideration of the water storage volume of 38a, and when it is determined to be "YES" in step 315, the insides of the rising portions 37a and 38a of both discharge pipes 37 and 38 are empty (the water level of the electrolytic cell 30 is To the outlets 31c and 31d).

Further, in step 316 described above, an OFF signal is output to the power supply circuit 120, and in step 317.
Then, it is determined whether or not the elapsed time t after the execution of step 314 is the third set value t3 or more. By the way, step 31
While the elapsed time after execution of step 4 is less than the third set value t3, it is determined to be "NO" in step 317 and step 3
17 is repeatedly executed, and when the elapsed time after the execution of step 314 reaches the third set value t3, it is determined to be “YES” in step 317 and the above-mentioned diagram is executed after the processing of step 318 is executed. Returning to step 302 of 4. The above-mentioned third set value t3 is set in consideration of the amount of water that flows back from the electrolytic cell 30 to the water storage tank 10 per unit time, and when the determination in step 317 is "YES", both drain pipes 37, 38 rises 37a, 3
All the water in 8a and the electrolytic cell 30 has been drained to become empty.

In step 318, a valve closing signal is output to the electromagnetic opening / closing valve V1. Therefore, in this embodiment, the electromagnetic on-off valve V1 is maintained in the open state after the execution of step 313 and during the execution of step 318, and the raw water is supplied to the water storage tank 10 through the water supply pipe 19. By the way, the above step 3 of FIG.
Nos. 07 to 318 are executed when the generation switch 102 is turned off to stop the generation operation, and at this time, backwashing is performed at the time of reverse flow due to the natural fall into the water storage tank 10 obtained by stopping the electric pump P1. When the operation is obtained and the electrolytic cell 30 is cleaned, the electromagnetic opening / closing valve V
When the raw water is supplied from the water supply pipe 19 to the water storage tank 10 obtained by opening 1, the neutralized water mixed with the respective ionized water generated by the reverse electrolysis cleaning is diluted in the water storage tank 10 to become diluted water, and surplus water. Minutes are discharged from the water storage tank 10 to the outside through the overflow pipe 12. Therefore, the amount of the above-described neutralized water remaining in the water storage tank 10 can be reduced, and raw water having substantially the same water quality as the water quality during the normal generation operation can be stored even in the initial regeneration operation after the reverse electrolysis cleaning. The electrolytic ion water can be supplied from the tank 10 to the electrolytic cell 30, and electrolyzed ion water having substantially the same characteristics as the characteristics during the normal regeneration operation from the initial regeneration operation after the reverse electrolysis cleaning can be obtained. Although the water level of the water storage tank 10 is equal to or higher than the upper limit water level and step 205 of FIG. 3 is executed after execution of step 313 and step 318, the solenoid opening / closing valve V1 of the present embodiment is Since it is normally closed when energized, it remains open without closing.

In addition, at this time, the water tank 10 is supplied from the water supply pipe 19 obtained by opening the electromagnetic opening / closing valve V1.
When the raw water is supplied to the storage tank 10, foreign matter (including the scale that has been separated from the electrode 32 of the electrolysis tank 30 and has flowed into the storage tank 10 due to reverse electrolysis) that has accumulated at the bottom of the storage tank 10 is stirred and stored together with the above-described dilution water. It can be discharged to the outside of the tank 10. Therefore, it is possible to suppress mechanical troubles such as foreign matter clogging the electric pump P1 and the electrolytic cell 30 during the regeneration operation after the reverse electrolysis cleaning. In addition, in order to obtain such an action accurately,
The tip of the water supply pipe 19 is brought close to the bottom wall of the water storage tank 10 as shown by the phantom line in FIG. 1 so that the water flow from the water supply pipe 19 acts properly on the bottom wall of the water storage tank 10. Is desirable.

In the above-described embodiment, the present invention is applied to the electrolytic ion water producing apparatus in which the electrolytic ion water produced in the electrolytic cell 30 is directly guided to the sink 80 through the discharge pipes 37 and 38. However, according to the present invention, the electrolytic ion water generated in the electrolytic cell 30 is temporarily stored in the storage tank through the discharge pipes 37 and 38 and is discharged from the storage tank as needed. The same can be applied to the device. Further, in the above-described embodiment, steps 307 to 318 of FIG. 5 are executed when the production operation is stopped due to the off operation of the production switch 102. However, an integration timer that integrates the production operation time is provided in the device. It is also possible to provide the present invention so that steps 307 to 318 of FIG. 5 are executed each time the integrated value of the integration timer reaches the set value.

Further, in the above-described embodiment, the electromagnetic on-off valve V1 is maintained in the open state during the execution of step 313 to step 318 of FIG. 5, and raw water is continuously supplied through the water supply pipe 19. Configured to
In the meantime, the electromagnetic opening / closing valve V1 may be intermittently opened / closed, and the raw water may be intermittently supplied through the water supply pipe 19 to be implemented. Further, in carrying out the present invention, the water storage tank 10 shown in FIG. 1 is configured to be supplied with tap water and saline (in other words, in addition to the configuration of FIG. 1, JP-A-4-75576). The tank 1 is equipped with a concentration sensor and a high-concentration saline solution supply means as shown in FIG.
It is also possible to attach the raw water to a saline solution having a predetermined concentration).

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing a first embodiment of an electrolytic ionized water generator according to the present invention.

FIG. 2 is a diagram schematically showing a use state of the electrolytic ionized water generator shown in FIG.

FIG. 3 is a flowchart showing a program executed by one microcomputer included in the control device for the electrolytic ionized water generation device shown in FIG. 1.

4 is a flowchart showing a part of a program executed by another microcomputer included in the control device for the electrolytic ionized water production device shown in FIG. 1. FIG.

5 is a flow chart showing the rest of the program executed by another microcomputer included in the control device for the electrolytic ionized water production device shown in FIG. 1. FIG.

[Explanation of symbols]

10 ... Water storage tank, 11 ... Water level sensor, 12 ... Overflow pipe, 19 ... Water supply pipe, 30 ... Electrolyzer, 32, 3
3 ... Electrode, 34, 35 ... Electrolyte chamber, 36 ... Diaphragm, 37, 3
8 ... Discharge pipe, 37a, 38a ... Upright part, 37c, 38c
... Ventilation tube, 100 ... Control device, 101 ... Power switch, 102 ... Generation switch, 110 ... Electrode changer, 12
0 ... Power supply circuit, P1 ... Electric pump, V1 ... Electromagnetic on-off valve.

Claims (1)

[Claims] 1. A water storage tank equipped with a water level sensor and an overflow pipe for storing raw water such as water or salt water; and a water supply pipe having an electromagnetic opening / closing valve for supplying the raw water to the water storage tank. And, the first and second electrode chambers for accommodating the respective electrodes are formed by disposing the first and second electrodes facing each other inside and a diaphragm between the two electrodes, and raw water flows into and out of the both electrode chambers. The electrolytic tank, the electric pump for pumping the raw water of the water storage tank to both electrode chambers of the electrolytic tank, the rising portion rising above the water surface of the water storage tank, and the opening capable of communicating with the atmosphere. It has a first discharge pipe connected to the first electrode chamber for discharging electrolytic ionized water generated in the first electrode chamber, a rising portion rising above the water surface of the water storage tank, and an opening capable of communicating with the atmosphere. Connect to the second electrode chamber And a second discharge pipe for discharging electrolytic ionized water generated in the same electrode chamber, an electrode switching means for switching between direct and reverse of a DC voltage applied from the power supply circuit to the both electrodes, the electric pump, and the electrode switching. The operation of the means and the electromagnetic on-off valve is controlled to maintain the electric pump in a driving state and the electrode switching means in a positive power state during a generating operation, and further, based on a signal from the water level sensor, The electromagnetic on-off valve is controlled to open and close to maintain the water level in the water storage tank within a set range, and when the production operation is stopped, the electric pump is stopped and the water remaining in the first and second discharge pipes is stored in the water storage tank. The electrolytic ionized water production device provided with an operation control means for switching the electrode switching means to a reversely charged state and for opening the electromagnetic on-off valve during reverse flow.