JPH10202262A - Electrolytic water generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the propagation of bacteria and the generation of mildew and algae in the electrolytic cell, outlet pipe, etc., which are emptied when the generator is shut down. SOLUTION: This electrolytic water generator is provided with the electrolytic cell 20 contg. the first and second electrodes 22 and 23 opposed to each other and receiving and discharging treated water, the means 11 and 12 and V1 for supplying the treated water to the electrolytic cell, the outlet pipes 31, 32, 33 and 34 for discharging the electrolytic water generated in the cell and the means 13 and V2 for discharging the water in the cell and outlet pipes. A means 40 is furnished to supply ozone to the generator which is emptied when the operation is stopped, and a control means V4 is provided to supply ozone to the cell and outlet pipes when the operation is stopped and to stop the supply of ozone when the generator is operated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrolyzed water generator for electrolyzing treated water such as water or saline to generate electrolyzed water.

[0002]

2. Description of the Related Art As one type of this type of apparatus, for example, Japanese Patent Laid-Open Publication No. Hei 8-229559 discloses an electrolysis apparatus in which first and second electrodes are arranged inside each other and treated water flows in and out. A tank, a water supply unit for supplying the treated water to the electrolytic tank, an outlet pipe for extracting the electrolytic water generated in the electrolytic tank, and a drain unit for draining water from the electrolytic tank and the outlet pipe. In addition, there is shown an electrolyzed water generating apparatus in which at least the electrolysis tank and the outlet pipe are empty when the electrolysis generation operation is stopped.

[0003]

In the electrolyzed water generating apparatus disclosed in the above publication, at least the electrolytic cell and the discharge pipe are empty when the electrolysis generation operation is stopped. If the length is too long, floating bacteria and the like existing in the air may enter from the opening of the outlet pipe, and there is a possibility that various bacteria may propagate and mold and algae may be generated inside the outlet pipe and the electrolytic cell.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to address the above-mentioned problems, and the invention according to claim 1 has a first and a second electrode which are disposed opposite to each other and have a processing capability. An electrolytic cell in which water flows in and out, water supply means for supplying the treated water to the electrolytic cell, a discharge pipe for discharging the electrolytic water generated in the electrolytic cell, the electrolytic cell and the discharge A drainage means for draining water from a pipe, wherein in an electrolyzed water generating apparatus in which at least the electrolytic cell and the outlet pipe are emptied when the electrolysis generation operation is stopped, ozone is supplied to the electrolytic tank and the outlet pipe. An ozone supply means is provided, and when the electrolysis production operation is stopped, ozone supply from the ozone supply means to the electrolytic cell and the outlet pipe is allowed. It is characterized in that the ozone supply to the outlet pipe to the provision of the control means for stopping.

[0005] The invention according to claim 2 is characterized in that the supply of ozone to the electrolytic cell and the outlet pipe by the control means is performed at a predetermined amount every predetermined time.
The invention according to claim 3 is characterized in that the supply amount of ozone by the ozone supply is substantially equal to the internal space volume of the electrolytic cell and the outlet pipe.

[0006]

According to the first aspect of the present invention,
When the electrolytic generation operation is stopped in the electrolyzed water generator and the electrolytic cell and the outlet pipe are emptied by the drainage means, ozone supply to the electrolytic tank and the outlet pipe is allowed by the control means, and the ozone supply means Ozone is supplied to the electrolytic cell and the outlet pipe. For this reason, ozone is filled in the electrolytic cell and the outlet pipe, and the germicidal power of ozone can prevent the propagation of various bacteria and the generation of mold and algae inside the electrolytic tank and the outlet pipe.

In addition, ozone, which is a gas which is hardly soluble in water, is supplied to the electrolytic cell and the outlet pipe for sterilization.
During the re-electrolysis generation operation of the apparatus, the ozone filled in the electrolytic cell and the outlet pipe is naturally discharged into the atmosphere from the outlet pipe without dissolving in the treated water and the electrolyzed water, and the desired ozone is obtained from the initial stage of the re-electrolysis generation operation. Electrolyzed water is obtained.

According to the second aspect of the present invention, in addition to the operation and effect of the first aspect of the invention, a predetermined amount of ozone is supplied to the electrolytic cell and the discharge pipe at predetermined time intervals. If the time is set in consideration of the sterilization effect of ozone, the sterilization effect of ozone is always obtained without constantly supplying ozone, and it is possible to sterilize efficiently with a small amount of ozone and it is not necessary to generate a large amount of ozone. As a result, the size and size of the ozone supply means can be reduced.

In the invention according to claim 3, in addition to the effect of the invention according to claim 1 or 2, the supply amount of ozone is substantially equal to the internal space volume of the electrolytic cell and the outlet pipe. There is no need to wastefully generate ozone, and sterilization can be performed efficiently with the minimum necessary amount of ozone.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an electrolyzed water generating apparatus according to the present invention. The electrolyzed water generating apparatus includes a water supply valve V1 for supplying treated water (tap water) through a water supply pipe 11 to both electrode chambers of an electrolytic cell 20, The water supply valve V1 is a normally-closed electromagnetic on-off valve, and its operation is controlled by the control device 100. The water supply pipe 11 has a connection portion 11a having the above-described water supply valve V1 and the flow sensor S interposed therebetween, and a rising portion 11b extending upward from a tip of the connection portion 11a.
And a branch portion 11c that branches off from the tip of the rising portion 11b and extends upward and is connected to the two inlets 21a and 21b of the electrolytic cell 20, respectively.
Is connected to a water supply hose 12 via a well-known water purifier F, and a lower end of the rising portion 11b is connected to a drain pipe 13 provided with a drain valve V2. The water supply hose 12 extends outside the machine and is connected to a water pipe (not shown).

The flow sensor S detects the flow of water in the connection portion 11a of the water supply pipe 11, and a detection signal is output to the control device 100. The drain pipe 13 is arranged along the bottom of the machine, extends outside the machine, and can be drained to a drain (not shown). The drain valve V2 is a normally-closed electromagnetic on-off valve, and its operation is controlled by the control device 100.

The electrolytic cell 20 has a pair of inlets 21a, 21
b and a tank body 21 having a pair of outlets 21c and 21d
And first and second electrodes 22 and 23 opposed to each other in the tank body 21, and first and second electrodes 22 and 23 disposed between the two electrodes 22 and 23 to accommodate the electrodes 22 and 23. Electrode chamber 2
4, 25 comprising a diaphragm 26 forming
An inlet 21a and an outlet 21c communicate with the first electrode chamber 24, and an inlet 21b and an outlet 21d communicate with the second electrode chamber 25. Each of the electrodes 22 and 23 is formed by baking platinum plating or platinum iridium on the surface of a titanium base material. It has become so. Further, upstream outlet pipes 31 and 32 are connected to the outlets 21c and 21d, respectively.
32 is a downstream outlet pipe 33, 3 via a flow path switching valve V3.
4 is connected.

Each of the outlet pipes 33 and 34 has rising portions 33a and 34a which rise above the electrolytic cell 20 to reach the position of the sink 40 where each ion water is used as shown in FIG. It is extended and opened, and is connected at its lower end to the flow path switching valve V3.

The flow path switching valve V3 is a four-port, two-position switching valve that withstands acid and alkali and is driven by an electric motor (not shown) to be switched. The reverse state shown by a virtual line in FIG. When a positive signal is received from the control device 100 in a state where the outlet pipe 31 is connected to the outlet pipe 34 and the outlet pipe 32 is connected to the outlet pipe 33, the positive state shown by the solid line in FIG. Is connected to the outlet pipe 33 and the outlet pipe 3
2 is connected to the outlet pipe 34).
Further, when a reverse signal is received from the control device 100 in the normal state shown by the solid line in FIG. 1, the state is switched to the reverse state shown by the virtual line in FIG. 1, and the reverse state shown by the virtual line in FIG. , Or in the normal state shown by the solid line, is detected by a sensor (not shown).

Incidentally, in addition to the above configuration, this electrolyzed water generating apparatus has an ozone supply means 40 for supplying ozone to the water supply pipe 11, the drain pipe 13, the electrolytic tank 20, and the outlet pipes 31, 32, 33, 34. When the electrolysis generation operation is stopped, the water supply pipe 11, the drain pipe 13, and the electrolytic cell 2
0 and the supply of ozone to the outlet pipes 31, 32, 33, and 34. During the electrolysis generation operation, the ozone supply means 40 supplies the water supply pipe 11, the drain pipe 13, the electrolytic tank 20, and the outlet pipe 3.
An ozone supply valve V4 is provided as control means for stopping the supply of ozone to 1, 32, 33, and 34. The ozone supply means 40 is connected to the connection part 11a of the water supply pipe 11 downstream of the water supply valve V1 (toward the electrolytic cell 20) via the ozone supply valve V4 and the communication pipe 51. It comprises an ozone generator 42, a high-voltage power supply 43, and connecting pipes 44, 45. The air supply device 41 is for supplying air to the ozone generator 42, and includes an air blowing fan (not shown) therein. The operation of the air blowing fan is controlled by the control device 100. I have. The ozone generator 42 is a well-known one, and has two metal electrodes (not shown) disposed therein.
Discharge is started by interposing air from the air supply device 41 through the connection pipe 44, disposing a solid derivative (not shown), and applying a high AC or DC voltage between both electrodes from the high voltage power supply 43. As a result, oxygen in the air is converted into ozone. The high-voltage power supply 43 is for applying an AC high voltage between both electrodes of the ozone generator 42, and its operation is controlled by the control device 100.

The ozone supply valve V4 is a normally-closed electromagnetic opening / closing valve, and is opened by the control device 100 when the electrolysis generation operation is stopped.
3. The ozone supply to the electrolytic cell 20 and the outlet pipes 31, 32, 33, and 34 is allowed, and the ozone supply means 40 is closed at the time of the electrolysis generation operation.
The supply of ozone to the electrolytic cell 20 and the outlet pipes 31, 32, 33, 34 is stopped.

The control device 100 includes a power switch 101 and a generation switch 102 (both are ON / OFF changeover switches), a timer and an integration timer (both not shown), and FIGS. 3, 4 and 5. And a switch (not shown) for executing a program corresponding to the flowchart shown in FIG.
01, 102, the signal from the flow sensor S, the signal from the sensor for detecting the state of the flow path switching valve V3, and the time values of a built-in timer and an integration timer (both not shown) are used. Drain valve V2 and ozone supply valve V4
Opening / closing operation, switching operation of flow path switching valve V3, application / stop of DC voltage to both electrodes 22 and 23 in electrolytic cell 20, switching of positive / negative electrode, air supply device 41 and high voltage power supply device 43
Are controlled, and the respective operations described below can be obtained.

In the present embodiment configured as described above, when the power switch 101 is turned on in a state where the electrolyzed water generation device is usable, the microcomputer of the control device 100 executes the process at step 201 in FIG. Execution of the program is started, and the generation switch 10
It is determined whether or not 2 has been turned on. At this time, if the generation switch 102 is not turned on,
If "NO" is determined in step 202,
2 is repeatedly executed.
Is turned on, "YE" is determined in step 202.
S "and the processing of steps 203 and 204 is executed.

At step 203, an open signal is output to the water supply valve V1, and at step 204, it is determined whether or not the flow sensor S is ON. If the water supply valve V1 is normal, it is opened by an open signal, and if the water supply is not in a water-off state, tap water flows through the water supply pipe 11 and the flow sensor S is turned on.
If "YES" is determined in Step 204, Step 2
The processing of 05, 206 or 207 is executed. In addition,
If the water supply valve V1 does not open in response to the open signal, or if the water supply is in a water-cut state, it is determined to be “NO” in step 204, and a water-cut alarm routine of 208 is executed to issue an alarm. When the water supply is changed from the water-off state to the water-permeation state, the flow sensor S is turned on by the water supply of the water supply, and “YES” is determined in step 204 and step 20
The processing of 5, 206 or 207 is executed.

In step 205, the flow path switching valve V3 is
It is determined whether or not it is held in the correct state shown by the solid line. If determined to be “YES”, steps 209 and 210 are executed after step 206 is performed, and if determined to be “NO” Steps 209 and 210 are executed after step 207 is processed. In step 206, a predetermined DC voltage is applied to both the electrodes 22 and 23 of the electrolytic cell 20 by a positive voltage, so that the electrode 22 becomes a positive pole and the electrode 23 becomes a negative pole. Step 20
In 7, the reverse voltage is applied to the two electrodes 22 and 23 of the electrolytic cell 20 by a predetermined value, so that the electrode 23 becomes a positive pole and the electrode 22 becomes a negative pole.

In step 209, an ON signal is output to the integration timer, and the integration timer restarts integration.
If it is 0, it is determined whether or not the integrated value of the integrating timer is equal to or greater than a set value. If the integrated value of the integrating timer is less than the set value, “NO” is determined in step 210 and step 21
1 is performed, and when the integrated value reaches the set value, “YES” is determined in step 210 and step 21 is performed.
After the processing of step 6 is executed, the processing of step 217 and subsequent steps of FIG. 4 is executed.

For this reason, when the apparatus is normally started by turning on the power switch 101 and the generation switch 102 while the flow path switching valve V3 is in the normal state shown by the solid line in FIG. , 203, 20
4, 205, 206, 209 and 210 are executed, and the tap water that has passed through the water purifier F from the water supply hose 12 passes through the water supply valve V1, the flow sensor S, and the water supply pipe 11 to each electrode chamber of the electrolytic cell 20. The ionized water is supplied to the positive electrode 24, 25, and is electrolyzed in the electrolytic cell 20 to generate each ionized water. Alkaline ionized water with an increased amount of hydroxyl ions is sent from the electrode chamber 25 of the negative electrode 23 to the outlet pipe 32 and the flow path switching valve V3 in the positive state through the flow path switching valve V3 and the outlet pipe 33 to the sink 40. It is sent to the sink 40 through the outlet pipe 34. When the apparatus is normally started by turning on the power switch 101 and the generation switch 102 in the reverse state of the flow path switching valve V3 shown by the virtual line in FIG.
The processing of step 207 is executed instead of 06, and the acidic ion water in which the hydrogen ions have increased is sunk from the electrode chamber 25 of the plus side electrode 23 through the flow path switching valve V3 and the discharge pipe 33 in the state opposite to the discharge pipe 32. The alkaline ionized water having an increased amount of hydroxyl ions is sent from the electrode chamber 24 of the negative electrode 22 to the flow path switching valve V in a state opposite to the outlet pipe 31.
3 and sent to the sink 40 through the outlet pipe 34.

The above-described operation for generating ionic water upon activation of the apparatus is performed in step 21 until the integrated value of the integration timer reaches the set value or the generation switch 102 is turned off.
The processes 0 and 211 are repeatedly executed and maintained, and when the integrated value of the integrating timer reaches the set value, step 2 in FIG.
16 and the processes after step 217 in FIG. 4 are executed, and the re-operation described below is started.

In step 216, a reset signal is output to the integration timer to reset the integration value of the integration timer to zero. In step 217, both electrodes 22 and
The application of voltage to 23 is stopped, a close signal is output to the water supply valve V1 in step 218, and it is determined in step 219 whether or not the flow sensor S is OFF. The water supply valve V1 is
If it is normal, the closing operation is performed by the closing signal. Therefore, when the water stops flowing through the water supply pipe 11 due to the closing operation of the water supply valve V1, the flow sensor S is turned off, and “YES” is determined in step 219.
Steps 221, 222, 223, and 22
4, 225 are sequentially executed. In addition, the water supply valve V1
Does not turn off, the flow sensor S is not turned off and the determination at step 219 is "NO", and a failure alarm routine of 220 is executed to issue an alarm.

In step 221, the switching routine of the flow path switching valve V3 is executed, and when the flow path switching valve V3 is in the normal state, the state is switched to the reverse state, and when the state is the reverse state, the state is switched to the normal state. . At step 222, an open signal is output to the drain valve V2, and the drain valve V2 is opened.
At 23, the timer is reset and the counted value t is set to zero. In step 224, it is determined whether or not the time value t of the timer reset in step 223 is equal to or greater than a set value t1.
4 is repeatedly executed, and when it is determined to be “YES”, the processing of step 225 is executed, and then the processing of step 203 and the subsequent steps of FIG. 3 described above is executed. In step 225, a close signal is output to the drain valve V2, and the drain valve V2 is closed. The set value t1 described above is generated by the respective outflow pipes 33 and 34 when the generation operation is interrupted in the apparatus.
The time until the ionized water inside flows back into the electrode chambers 24 and 25 of the electrolytic cell 20 through the flow path switching valve V3 and the outlet pipes 31 and 32, and the water in the electrode chambers 24 and 25 is neutralized or reverse ionized. Is determined based on actual measurement values measured by experiments.

Therefore, steps 216 and 2 described above are performed.
17,218,219,221,222,223,22
When the processing after step 203 is performed after the processing of 4,225 is performed, the temporary stop of the ionized water generation operation, the switching operation of the flow path switching valve V3, and the operation of each electrode chamber due to a predetermined amount of drainage. After the neutralization or reverse ionization of the ionic water is performed, the device is restarted and the operation of generating the ionic water is restarted.

On the other hand, if "NO" is determined in step 210, step 211 is executed, and if "YES" is determined in step 211, steps 212, 213,
Step 214 is executed. It should be noted that if “NO” is determined in the step 211, the processing of the steps 210 and 211 is repeatedly executed. In step 212, an OFF signal is output to the integration timer, and the integration timer interrupts the integration. In step 213, both electrodes 22, 23 of the electrolytic cell 20 are stopped.
The voltage application to the water supply valve V is stopped at step 214.
1 is output, and thereafter, in step 231 of FIG.
The processing of the subsequent ozone supply routine is executed.

In step 231, an open signal is output to the drain valve V2 to open the drain valve V2. In step 232, the timer is reset and the time value t is set to zero.
In step 233, it is determined whether or not the time value t of the timer reset in step 232 is equal to or more than the set value t2. If “NO” is determined, the process proceeds to step 233.
Are repeatedly executed, and when it is determined to be "YES", the processes of steps 234, 235, and 236 are executed. The above-described set value t2 is set in each of the electrode chambers 24, 2
The water neutralized or deionized in 5 is branched 11c,
The time until all the water is drained through the rising portion 11b and the drain pipe 13 is determined based on an actual measurement value measured by an experiment.

In step 234, an operation start signal is output to the air supply device 41 and the high voltage power supply device 43, and each device 4
At the same time, an opening signal is output to the ozone supply valve V4 and the ozone supply valve V4 is opened, and in step 235, the timer is reset to zero the time value t. In step 236, step 2
The time value t of the timer reset at 35 is the set value t3
It is determined whether or not this is the case, and if “NO” is determined, the process of step 236 is repeatedly performed, and “YES”
Are determined, steps 237, 238, 239 are performed.
Is performed. Note that the above-described set value t3 is determined based on an actual measurement value obtained by experimentally measuring the time until the connection portion 11a and the drain pipe 13 are filled with ozone.

In step 237, a close signal is output to the drain valve V2 to close the drain valve V2, and in step 238, the timer is reset and the counted value t is set to zero.
In step 239, it is determined whether or not the time value t of the timer reset in step 238 is equal to or greater than a set value t4. If “NO” is determined, step 239 is performed.
Are repeatedly executed, and when it is determined to be “YES”, the processing of step 240 is executed, and then the processing of step 202 and subsequent steps in FIG. 3 described above is executed. In step 240, the air supply device 41 and the high-voltage power supply device 43
, An operation stop signal is output to each of the devices 41 and 43, and the respective devices 41 and 43 stop operating, and a close signal is output to the ozone supply valve V4 to close the same. The set value t4 is set to the rising portion 11b, the branch portion 11c, and the electrolytic cell 20.
The time until the outlet pipes 31, 32, 33, and 34 are filled with ozone is determined based on actual measurement values measured by experiments.

Therefore, when the generation switch 102 is turned off, the above-mentioned steps 211, 212, 213 and
214, 231, 232, 233, 234, 235, 2
The processes of 36, 237, 238, 239, and 240 are executed, the power supply between the electrodes 22 and 23 is stopped, the water supply valve V1 is closed, and the outlet pipe 31 is opened by opening the drain valve V2. 32, 33, and 34, the electrolytic cell 20, the branch portion 11c, the rising portion 11b, the connection portion 11a downstream of the water supply valve V1, and the inside of the drain pipe 13 are all emptied, and thereafter supplied from the air supply device 41. The ozone generator 4 is operated by air and a high voltage applied from the high voltage power supply 43.
The ozone generated in 2 is supplied to these by opening the ozone supply valve V4.

As is clear from the above description, in the electrolyzed water generating apparatus according to the present invention, the electrolysis generating operation is stopped and the outlet pipes 31, 32, 3 are opened by opening the drain valve V2.
3, 34, electrolytic cell 20, branch portion 11c, rising portion 11b,
When the inside of the connection portion 11a and the inside of the drain pipe 13 downstream of the water supply valve V1 are emptied, the ozone supply valve V4 causes the outlet pipe 3 to become empty.
1, 32, 33, 34, the electrolytic cell 20, the branch portion 11c, the rising portion 11b, the connection portion 11a downstream of the water supply valve V1 and the ozone supply to the drain pipe 13 are allowed, and the ozone supply means 40 supplies ozone to these components. Is supplied. For this reason, these are filled with ozone, and the germicidal power of ozone can prevent the propagation of various bacteria and the generation of mold and algae inside these.

In addition, outflow pipes 31, 32, 33, and 34, electrolytic bath 20, branch section 11c, rising section 11b, connection section 11a downstream of water supply valve V1, and drain pipe 13 contain gas that is hardly soluble in water. Since ozone is supplied and sterilized, at the time of the regeneration operation of the apparatus, the ozone filled therein does not dissolve in the treated water and the ionized water and naturally flows out from the outlet pipes 33 and 34 into the atmosphere. It is discharged and desired electrolytic ionic water is obtained from the beginning of the re-electrolysis generation operation.

In the above embodiment, step 202
When the determination at step 202 is "NO", the processing of step 202 is repeatedly executed. However, as shown by the broken line in FIG. You may implement so that a process may be performed. In step 226, it is determined whether or not the time value t is equal to or greater than the set value t5.
2 and 226 are repeatedly executed, and when it is determined to be “YES”, the processing of the ozone supply routine of FIG. 5 is executed. In this case, the set value t5 is 6 at which the concentration of ozone is halved.
The time is preferably from 0 to 90 minutes.

In this case, in addition to the above-described functions and effects, the outlet pipes 31, 32, 33, and 34, the electrolytic cell 20, the branch portion 11c, the rising portion 11b, the connection portion 11a downstream from the water supply valve V1, and the drainage water are provided. Every predetermined time (60 to 90 minutes when the sterilizing effect of ozone is reduced by half) to a predetermined amount (outflow pipes 31, 32, 33, and 34), ozone into the pipe 13, the electrolytic tank 20, the branching section 11c,
The rising portion 11b, the connecting portion 11a on the downstream side of the water supply valve V1, and the drain pipe 13 are filled (that is, the amount is substantially equal to the volume of the internal space), so that there is no need to generate wasteful ozone. Therefore, sterilization can be performed most efficiently with the minimum necessary ozone, and there is no need to generate a large amount of ozone.
It is possible to reduce the size.

In the above embodiment, when the electrolysis generation operation is interrupted (when judged "YES" in step 210) and when it is stopped ("YES" in step 211).
Is determined), the electrolytic cell 20, the outlet pipes 31, 32,
The present invention was applied to an electrolyzed water generator for draining water in the drains 33 and 34 through the drain pipe 13.
No. 9559 (i.e., supply of treated water from a water storage tank to an electrolytic tank by a pump without a drain pipe, and when the electrolytic generation is interrupted or stopped, the water in the electrolytic tank and the discharge pipe is reduced by its own weight. (Return to the water storage tank).

In the above embodiment, the present invention is applied to the electrolyzed water generating apparatus having the diaphragm 26 inside the electrolytic cell 20. However, the present invention is applied to the electrolyzed water generating apparatus having no diaphragm inside the electrolytic cell. It is also possible to carry out on an apparatus.

Further, in the above-described embodiment, the ozone supply is discontinuously performed during the stop of the electrolysis generation operation. However, the ozone supply may be performed continuously during the stop of the electrolysis generation operation. In this case, after the process of step 234 is performed, step 202 (and step 22) is performed.
The process of 6) is executed, and if "YES" is determined in the step 202, the processes of the steps 237 and 240 are executed before the process of the step 203.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of an electrolyzed water generation device according to the present invention.

FIG. 2 is a view schematically showing a state of use of the electrolyzed water generating apparatus shown in FIG.

FIG. 3 is a flowchart showing a part of a program executed by a microcomputer provided in the control device of the electrolyzed water generation device shown in FIG.

FIG. 4 is a flowchart showing an ozone supply routine executed by a microcomputer provided in the control device of the electrolyzed water generating apparatus shown in FIG.

FIG. 5 is a flowchart showing the rest of the program executed by the microcomputer provided in the control device of the electrolyzed water generating apparatus shown in FIG.

[Explanation of symbols]

11, 12, V1 ... water supply pipe, water supply hose, water supply valve (water supply means), 13, V2 ... drainage pipe, drainage valve (drainage means), 2
0: electrolytic cell, 22, 23: electrode, 31, 32, 33, 3
4 ... outlet pipe, 40 ... ozone supply means, V4 ... ozone supply valve (control means).

──────────────────────────────────────────────────の Continued on front page (51) Int.Cl. ⁶ Identification code FI C02F 1/50 540 C02F 1/50 540A 550 550H 550L 560 560F

Claims (3)

[Claims] 1. An electrolytic cell having first and second electrodes disposed opposite to each other and through which treated water flows in and out; water supply means for supplying the treated water to the electrolytic cell; A discharge pipe for discharging the electrolytic water generated in the tank, and a drainage unit for draining water from the electrolytic tank and the discharge pipe, wherein at least the electrolytic tank and the discharge pipe are empty when the electrolytic generation operation is stopped. In the electrolyzed water generator to be
Ozone supply means for supplying ozone to the electrolytic cell and the outlet pipe is provided, and when the electrolysis generation operation is stopped, ozone supply from the ozone supply means to the electrolytic cell and the outlet pipe is permitted. An electrolyzed water generating apparatus characterized in that a control means for stopping the supply of ozone from the ozone supply means to the electrolytic cell and the outlet pipe is sometimes provided. 2. The electrolyzed water generation apparatus according to claim 1, wherein a supply of ozone to said electrolytic cell and said outlet pipe by said control means is performed at a predetermined amount every predetermined time. 3. The electrolyzed water generating apparatus according to claim 1, wherein an amount of ozone supplied by the ozone supply is substantially equal to an internal space volume of the electrolytic cell and the outlet pipe.