JP3784123B2 - Electrolyzed water generator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electrolyzed water generating apparatus that electrolyzes treated water such as water or saline to generate electrolyzed water.
[0002]
[Prior art]
As one example of this type of apparatus, for example, in Japanese Patent Laid-Open No. 8-229559, an electrolytic cell in which first and second electrodes are disposed opposite to each other and treated water flows in and out, and the treatment is described above. Electrolytic generation comprising water supply means for supplying water to the electrolyzer, a lead-out pipe for deriving electrolyzed water generated in the electrolyzer, and drainage means for draining water from the electrolyzer and the lead-out pipe An electrolyzed water generating apparatus is shown in which at least the electrolytic cell and the outlet pipe are emptied when the operation is stopped.
[0003]
[Problems to be solved by the invention]
By the way, in the electrolyzed water generating apparatus described in the above publication, at least when the electrolysis generation operation is stopped, at least the electrolytic cell and the outlet pipe are in an empty state. There is a risk that airborne bacteria or the like existing inside may invade and miscellaneous bacteria may propagate inside the outlet tube or the electrolytic cell, or mold or algae may be generated.
[0004]
[Means for Solving the Problems]
The present invention has been made to cope with the above-described problems, and the invention according to claim 1 is configured such that the first and second electrodes are disposed to face each other and the treated water flows in and out. An electrolytic cell, water supply means for supplying the treated water to the electrolytic cell, a lead-out pipe for deriving electrolytic water generated in the electrolytic tank, and a drain means for draining water from the electrolytic tank and the lead-out pipe In the electrolyzed water generating apparatus in which at least the electrolytic cell and the outlet pipe are emptied when the electrolytic generation operation is stopped, an ozone supply means for supplying ozone to the electrolytic tank and the outlet pipe is disposed, Allowing ozone supply from the ozone supply means to the electrolytic cell and the lead-out pipe when the electrolytic production operation is stopped, and stopping ozone supply from the ozone supply means to the electrolytic cell and the lead-out pipe during the electrolytic production operation It is characterized in having a control unit for.
[0005]
The invention according to claim 2 is characterized in that ozone is supplied to the electrolytic cell and the outlet pipe by the control means at a predetermined amount every predetermined time, and the invention according to claim 3 Is characterized in that the amount of ozone supplied by the ozone supply is substantially equal to the internal space volume of the electrolytic cell and the outlet tube.
[0006]
[Operation and effect of the invention]
In the invention according to claim 1, when the electrolysis generation operation is stopped in the electrolyzed water generation device and the electrolytic cell and the discharge pipe are emptied by the drainage means, the ozone to the electrolytic cell and the discharge pipe is controlled by the control means. Supply is permitted, and ozone is supplied from the ozone supply means to the electrolytic cell and the outlet tube. For this reason, the electrolytic cell and the lead-out tube are filled with ozone, and the germicidal power inside the electrolytic cell and the lead-out tube and the generation of mold and algae can be prevented by the sterilizing power of ozone.
[0007]
In addition, since ozone, which is a hardly soluble gas in water, is supplied to the electrolytic cell and the lead-out pipe and sterilized, the ozone filled in the electrolytic tank and the lead-out pipe is treated during the re-electrolytic generation operation of the apparatus. Without being dissolved in water and electrolyzed water, it is naturally discharged from the outlet pipe into the atmosphere, and desired electrolyzed water is obtained from the initial stage of the re-electrolytic generation operation.
[0008]
In addition, in the invention according to claim 2, in addition to the function and effect of the invention according to claim 1, the ozone is supplied to the electrolytic cell and the outlet pipe at a predetermined amount every predetermined time. If it is set in consideration of the sterilization effect of the above, the sterilization effect by ozone is always obtained even if ozone is not constantly supplied, it can be sterilized efficiently with a small amount of ozone, and it is not necessary to generate a large amount of ozone and supply ozone It is possible to reduce the size and size of the means.
[0009]
In addition, in the invention according to claim 3, in addition to the operational effect of the invention according to claim 1 or 2 described above, the amount of ozone supplied is substantially equal to the internal space volume of the electrolytic cell and the lead-out pipe. Can be efficiently sterilized with a minimum amount of ozone.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows an electrolyzed water generating device according to the present invention, and this electrolyzed water generating device is provided with a water supply valve V1 for supplying treated water (tap water) through a water supply pipe 11 to both electrode chambers of an electrolyzer 20. The water supply valve V <b> 1 is a normally closed type electromagnetic opening / closing valve, and its operation is controlled by the control device 100. The water supply pipe 11 includes a connecting portion 11a interposing the above-described water supply valve V1 and the flow sensor S, a rising portion 11b extending upward from the tip of the connecting portion 11a, and branching upward from the tip of the rising portion 11b. It is comprised by the branch part 11c connected to both inflow ports 21a and 21b of the extended electrolytic cell 20, respectively, and the water supply hose 12 is connected to the connection part 11a via the well-known water purifier F, and also of the upright part 11b A drain pipe 13 with a drain valve V2 interposed is connected to the lower end. The water supply hose 12 extends outside the machine and is connected to a water pipe (not shown).
[0011]
The flow sensor S detects the flow of water in the connection portion 11 a in the water supply pipe 11, and the detection signal is output to the control device 100. The drainage pipe 13 is disposed along the bottom of the machine and extends outside the machine, and can drain into a drainage groove (not shown). The drain valve V <b> 2 is a normally closed electromagnetic on-off valve, and the operation is controlled by the control device 100.
[0012]
The electrolytic cell 20 includes a tank body 21 having a pair of inlets 21a and 21b and a pair of outlets 21c and 21d, first and second electrodes 22 and 23 disposed opposite to each other in the tank body 21, and these It is comprised by the diaphragm 26 which is arrange | positioned between both electrodes 22 and 23, and forms the 1st and 2nd electrode chambers 24 and 25 which accommodate each electrode 22,23, 21 a and the outflow port 21 c communicate with each other, and the inflow port 21 b and the outflow port 21 d 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, and application / stop of DC voltage to both the electrodes 22 and 23 and switching between positive and negative electrodes are controlled by the control device 100. It has become so. Further, upstream outlet pipes 31 and 32 are connected to the respective outlets 21c and 21d, and both outlet pipes 31 and 32 are connected to downstream outlet pipes 33 and 34 via a flow path switching valve V3. ing.
[0013]
The outlet pipes 33 and 34 have rising portions 33a and 34a that rise upward from the electrolytic cell 20, and as shown in FIG. It is open and connected to the flow path switching valve V3 at the lower end.
[0014]
The flow path switching valve V3 is a 4-port 2-position switching valve that resists acid and alkali, and is switched by an electric motor (not shown), and is in the reverse state (lead-out pipe) indicated by the phantom line in FIG. When a positive signal is received from the control device 100 in a state where 31 is connected to the lead-out pipe 34 and the lead-out pipe 32 is connected to the lead-out pipe 33), the positive state (the lead-out pipe 31 is the lead-out pipe) shown in FIG. 1 and when the lead-out pipe 32 is connected to the lead-out pipe 34, and when a reverse signal is received from the control device 100 in the normal state shown by the solid line in FIG. The sensor is switched to the reverse state, and it is detected by a sensor (not shown) whether it is in the reverse state indicated by the phantom line or the normal state indicated by the solid line in FIG.
[0015]
By the way, in addition to the above-described configuration, the electrolyzed water generating apparatus includes 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, and electrolysis. When the generation operation is stopped, ozone supply from the ozone supply means 40 to the water supply pipe 11, the drain pipe 13, the electrolytic cell 20, and the outlet pipes 31, 32, 33, and 34 is allowed, and during the electrolysis generation operation, the ozone supply means 40 supplies the water supply pipe. 11, an ozone supply valve V4 is provided as a control means for stopping ozone supply to the drain pipe 13, the electrolytic cell 20, and the outlet pipes 31, 32, 33, and 34. The ozone supply means 40 is connected to the downstream side (electrolyzer 20 side) of the water supply valve V1 of the connecting portion 11a in the water supply pipe 11 via the ozone supply valve V4 and the communication pipe 51. The ozone generator 42, the high-voltage power supply device 43, and the connecting pipes 44 and 45 are configured. The air supply device 41 is for supplying air to the ozone generator 42, and has a blower fan (not shown) inside, and the blower fan is controlled in operation by the control device 100. Yes. The ozone generator 42 is known per se, and air is interposed between the two metal electrodes (not shown) disposed inside through the connection pipe 44 from the air supply device 41, and a solid derivative (not shown) is provided. Discharging is started by applying a high voltage of alternating current or direct current between both electrodes from the high voltage power supply device 43, and thereby oxygen in the air is converted into ozone. The high-voltage power supply device 43 is for applying an alternating high voltage between both electrodes of the ozone generator 42, and its operation is controlled by the control device 100.
[0016]
The ozone supply valve V4 is a normally closed electromagnetic on-off valve that is opened by the control device 100 when the electrolysis generation operation is stopped, and is supplied from the ozone supply means 40 to the water supply pipe 11, the drain pipe 13, the electrolytic tank 20, and the outlet pipe 31, The ozone supply to 32, 33, 34 is allowed, and is closed during the electrolysis generation operation, and the ozone supply means 40 leads to the water supply pipe 11, the drain pipe 13, the electrolytic tank 20 and the outlet pipes 31, 32, 33, 34. The ozone supply is stopped.
[0017]
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 is shown in FIGS. 3, 4, and 5. A microcomputer (not shown) for executing a program corresponding to the flowchart is provided, and the operation of each switch 101, 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 built-in On the basis of the time values of the timer and the integration timer (both not shown), the opening / closing operation of the water supply valve V1, the drain valve V2 and the ozone supply valve V4, the switching operation of the flow path switching valve V3, and both electrodes 22 in the electrolytic cell 20. The control of the operation of the air supply device 41 and the high voltage power supply device 43 and the application / stop of the DC voltage to the power supply 23 and the switching of the positive and negative electrodes. Cage, so that the operation can be obtained as described below.
[0018]
In the present embodiment configured as described above, when the power switch 101 is turned on while the electrolyzed water generating device is usable, the microcomputer of the control device 100 executes the program in step 201 of FIG. In step 202, it is determined whether or not the generation switch 102 is turned on. At this time, if the generation switch 102 is not turned on, it is determined as “NO” in step 202 and the process of step 202 is repeatedly executed. If the generation switch 102 is turned on, the process is performed in step 202. It is determined as “YES”, and the processing of steps 203 and 204 is executed.
[0019]
In step 203, an open signal is output to the water supply valve V1, and in step 204, it is determined whether or not the flow sensor S is ON. Since the water supply valve V1 is opened by an open signal if it is normal, if the water supply is not in a water shutoff state, the tap water flows through the water supply pipe 11 and the flow sensor S is turned ON. The process of step 205, 206 or 207 is executed upon determination. When the water supply valve V1 is not opened by the open signal or the water supply is in a water cut-off state, it is determined “NO” in step 204, and a water cut-off alarm routine 208 is executed to issue an alarm. When the water supply is changed from the water cut-off state to the water supply state, the flow sensor S is turned on by the water supply water supply, and “YES” is determined in step 204 and the processing of step 205, 206 or 207 is executed.
[0020]
In step 205, it is determined whether or not the flow path switching valve V3 is held in the positive state shown by the solid line in FIG. 1. If "YES" is determined, step 206 is processed and then steps 209 and 210 are executed. If “NO” is determined, step 207 is executed after step 207 is processed. In step 206, a positive DC voltage having a predetermined value is applied to both electrodes 22 and 23 of the electrolytic cell 20, so that the electrode 22 becomes a positive pole and the electrode 23 becomes a negative pole. On the other hand, in step 207, a DC voltage of a predetermined value is applied to both electrodes 22 and 23 of the electrolytic cell 20, so that the electrode 23 becomes a positive pole and the electrode 22 becomes a negative pole.
[0021]
In step 209, an ON signal is output to the integration timer and the integration timer resumes integration. In step 210, it is determined whether or not the integration value of the integration timer is greater than or equal to a set value. When the integrated value of the integration timer is less than the set value, it is determined as “NO” in step 210 and the process of step 211 is executed. When the integrated value reaches the set value, it is determined as “YES” in step 210. After the processing of step 216 is executed, the processing after step 217 of FIG. 4 is executed.
[0022]
Therefore, when the flow path switching valve V3 is in the positive state shown by the solid line in FIG. 1 and the apparatus is normally activated by turning on the power switch 101 and the generation switch 102, the above-described steps 201, 202, 203, The process of 204,205,206,209,210 is performed, and the tap water which passed 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, and each electrode chamber of the electrolytic cell 20 24, 25, and electrolyzed in the electrolytic cell 20 to generate each ionized water. From the electrode chamber 24 of the plus side electrode 22, acidic ionized water having increased hydrogen ions is in a positive state with the outlet pipe 31. Alkaline ionized water having increased hydroxyl ions is sent from the electrode chamber 25 of the negative electrode 23 to the outlet tube 32 through the flow path switching valve V3 and the outlet tube 33. Sent to the sink 40 through the flow path switching valve V3 and outlet tube 34 of the state. When the flow path switching valve V3 is in the reverse state indicated by the phantom line in FIG. 1 and the apparatus is normally activated by turning on the power switch 101 and the generation switch 102, the step 206 is replaced with the step 206. The acidic ion water with increased hydrogen ions is sent from the electrode chamber 25 of the plus side electrode 23 to the sink 40 through the flow path switching valve V3 and the discharge pipe 33 in the reverse state of the discharge pipe 32, and From the electrode chamber 24 of the negative side electrode 22, alkaline ionized water in which hydroxide ions have increased is sent to the sink 40 through the flow path switching valve V 3 and the outlet pipe 34, which are in the opposite state to the outlet pipe 31.
[0023]
The above-described ionic water generation operation associated with the start-up of the device is maintained by repeating the processes of steps 210 and 211 until the integrated value of the integration timer reaches a set value or the generation switch 102 is turned off. When the integrated value of the timer reaches the set value, the processes after step 216 in FIG. 3 and step 217 in FIG. 4 are executed, and re-operation described below is started.
[0024]
In step 216, a reset signal is output to the integration timer and the integration value of the integration timer is reset to zero. In step 217, voltage application to both electrodes 22 and 23 of the electrolytic cell 20 is stopped, and in step 218, the water supply valve V1. In step 219, it is determined whether or not the flow sensor S is OFF. Since the water supply valve V1 is closed by a closing signal if it is normal, the flow sensor S is turned OFF when the water supply pipe 11 is closed by the closing operation of the water supply valve V1, and “YES” is determined in step 219. Then, the processes of steps 221, 222, 223, 224, and 225 are sequentially executed. Note that when the water supply valve V1 is not closed, the flow sensor S is not turned OFF, it is determined “NO” in step 219, and a failure alarm routine 220 is executed to generate an alarm.
[0025]
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, it is switched to the reverse state, and when it is in the reverse state, it is switched to the normal state. In step 222, an open signal is output to the drain valve V2, and the drain valve V2 is opened. In step 223, the timer is reset and the time count t is set to zero. Further, in step 224, it is determined whether or not the time count t of the timer reset in step 223 is equal to or greater than the set value t1, and if “NO” is determined, the processing in step 224 is repeatedly executed, and “YES” is determined. When the determination is made, the processing in step 225 and subsequent steps in FIG. 3 is executed after the processing in step 225 is executed. In step 225, a close signal is output to the drain valve V2, and the drain valve V2 is closed. Note that the set value t1 described above is generated in the apparatus with the generation operation interrupted, and the ionic water in the outlet pipes 33 and 34 passes through the flow path switching valve V3 and the outlet pipes 31 and 32. , 25, and the time until the water in the electrode chambers 24, 25 is neutralized or reverse ionized is determined based on the actual measured values obtained by experiments.
[0026]
Therefore, when the processing of step 203 and subsequent steps is executed after the processing of steps 216, 217, 218, 219, 221, 222, 223, 224, and 225 is executed, the ionic water generation operation is temporarily interrupted. After the switching operation of the flow path switching valve V3 and neutralization or reverse ionization of each electrode chamber ionic water by a predetermined amount of drainage, the apparatus is restarted to restart the ionic water generation operation.
[0027]
On the other hand, if “NO” is determined in step 210, step 211 is executed, and if “YES” is determined in step 211, the processes of steps 212, 213, and 214 are executed. If “NO” is determined in the step 211, the processes in the steps 210 and 211 are repeatedly executed. In step 212, an OFF signal is output to the integration timer, and the integration timer interrupts the integration. In step 213, voltage application to both electrodes 22 and 23 of the electrolytic cell 20 is stopped. In step 214, a close signal is applied to the water supply valve V1. After that, the processing of the ozone supply routine after step 231 in FIG. 5 is executed.
[0028]
In step 231, an open signal is output to the drain valve V <b> 2 and the drain valve V <b> 2 is opened, and in step 232, the timer is reset and the time measurement value t is set to zero. In step 233, it is determined whether or not the time count t of the timer reset in step 232 is greater than or equal to the set value t2, and if "NO" is determined, the processing in step 233 is repeatedly executed, and "YES" Is determined, the processing of steps 234, 235 and 236 is executed. Note that the set value t2 described above was experimentally measured for the time until water neutralized or reverse ionized in the electrode chambers 24 and 25 was drained through the branch portion 11c, the upright portion 11b, and the drain pipe 13. It is determined based on actual measurement values.
[0029]
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 of the devices 41 and 43 starts operating, and an open signal is output to the ozone supply valve V4 to open the valve V4. In operation 235, the timer is reset and the time value t is set to zero. Further, in step 236, it is determined whether or not the time count t of the timer reset in step 235 is equal to or greater than the set value t3. If “NO” is determined, the processing in step 236 is repeatedly executed, and “YES” is determined. If it is determined, the processes of steps 237, 238, and 239 are executed. The set value t3 described above is determined based on an actual measurement value obtained by experimentally measuring the time until the connecting portion 11a and the drain pipe 13 are filled with ozone.
[0030]
In step 237, a close signal is output to the drain valve V2, and the valve V2 is closed. In step 238, the timer is reset and the time measurement value t is set to zero. In step 239, it is determined whether or not the time count t of the timer reset in step 238 is greater than or equal to the set value t4. If it is determined as “NO”, the processing in step 239 is repeatedly performed, and “YES” is determined. 3 is executed, the process in step 240 and the subsequent steps in FIG. 3 is executed. In step 240, an operation stop signal is output to the air supply device 41 and the high voltage power supply device 43 to stop the operation of each device 41, 43, and a close signal is output to the ozone supply valve V4 to close the valve V4. Operate. The set value t4 described above is determined based on actual measurement values obtained by experimentally measuring the time until the rising portion 11b, the branching portion 11c, the electrolytic cell 20, and the outlet pipes 31, 32, 33, and 34 are filled with ozone. Has been.
[0031]
For this reason, when the generation switch 102 is turned off, the above-described steps 211, 212, 213, 214, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240 are executed, Energization between the electrodes 22 and 23 is stopped and the water supply valve V1 is closed, and the discharge pipes 31, 32, 33 and 34, the electrolytic cell 20, the branching part 11c, the upright part are opened by opening the drain valve V2. 11b, the connection portion 11a downstream of the water supply valve V1 and the drain pipe 13 are all emptied, and then ozone is generated by the air supplied from the air supply device 41 and the high voltage applied from the high voltage power supply device 43. Ozone generated in the vessel 42 is supplied to the ozone supply valve V4 by opening it.
[0032]
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 discharge pipes 31, 32, 33, 34, the electrolytic cell 20, the branching portion 11c, When the inside of the upright portion 11b, the connecting portion 11a on the downstream side of the water supply valve V1, and the drain pipe 13 are emptied, the ozone supply valve V4 leads to the outlet pipes 31, 32, 33, 34, the electrolytic cell 20, the branching section 11c, Ozone supply to the upright portion 11b, the connecting portion 11a downstream of the water supply valve V1 and the drain pipe 13 is allowed, and ozone is supplied from the ozone supply means 40 to these. For this reason, the inside is filled with ozone, and propagation of germs inside these and generation of mold and algae can be prevented by the sterilizing power of ozone.
[0033]
In addition, in the outlet pipes 31, 32, 33, 34, the electrolytic cell 20, the branch part 11c, the upright part 11b, the connection part 11a on the downstream side of the water supply valve V1, and the drain pipe 13, ozone which is a gas hardly soluble in water. Therefore, during the regeneration operation of the apparatus, ozone filled inside is naturally discharged into the atmosphere from the outlet pipes 33 and 34 without being dissolved in the treated water and ionic water, Desired electrolytic ionic water can be obtained from the initial stage of the re-electrolysis production operation.
[0034]
In the above embodiment, the process of step 202 is repeatedly executed when it is determined “NO” in step 202. However, as indicated by the broken line in FIG. If it is determined, the process of step 226 may be executed. In step 226, it is determined whether or not the measured value t is equal to or greater than the set value t5. If “NO” is determined, the processing in steps 202 and 226 is repeatedly performed. If “YES” is determined, the ozone of FIG. The supply routine process is executed. In this case, the set value t5 is preferably 60 to 90 minutes when the ozone concentration is halved.
[0035]
In this case, in addition to the above-described effects, the outlet pipes 31, 32, 33, 34, the electrolytic cell 20, the branch part 11c, the upright part 11b, the connection part 11a downstream of the water supply valve V1 and the drain pipe 13 are provided. A predetermined amount of ozone every predetermined time (60 to 90 minutes when ozone sterilization effect is halved) (outlet pipes 31, 32, 33, 34, electrolytic bath 20, branching portion 11c, upright portion 11b, downstream of water supply valve V1) Therefore, it is not necessary to generate ozone unnecessarily, and it is the most efficient with the minimum necessary ozone. While being able to sterilize well, it is not necessary to generate a large amount of ozone, and the ozone supply means 40 can be made smaller and more compact.
[0036]
Moreover, in the said embodiment, when the electrolysis production | generation operation is interrupted (when it determines with "YES" in step 210), and when it stops (when it is determined with "YES" in step 211), the electrolytic cell 20, The present invention has been applied to the electrolyzed water generating device that drains the water in the outlet pipes 31, 32, 33, and 34 through the drain pipe 13. For example, the electrolyzed water generating device disclosed in JP-A-8-229559 (ie, from the water storage tank) It is also possible to supply treated water with a pump to the electrolytic cell, do not provide a drain pipe, and return the water in the electrolytic cell and outlet pipe to the water storage tank by its own weight when the electrolysis is interrupted or stopped) .
[0037]
Moreover, in the said embodiment, although this invention was implemented in the electrolyzed water generating apparatus which has the diaphragm 26 inside the electrolytic cell 20, this invention is implemented in the electrolyzed water generating apparatus which does not have a diaphragm inside the electrolytic cell. It is also possible to do.
[0038]
In the above embodiment, ozone supply is discontinuously performed while the electrolysis generation operation is stopped. However, ozone supply may be performed continuously while the electrolysis generation operation is stopped. In this case, after the process of step 234 is executed, the process of step 202 (and step 226) is executed, and if “YES” is determined in step 202, the process of steps 237 and 240 are performed. Is executed before the processing of step 203.
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram showing an embodiment of an electrolyzed water generating apparatus according to the present invention.
FIG. 2 is a diagram schematically showing a use state of the electrolyzed water generating device shown in FIG. 1;
FIG. 3 is a flowchart showing a part of a program executed by a microcomputer included in the control device of the electrolyzed water generating device shown in FIG. 1;
FIG. 4 is a flowchart showing an ozone supply routine executed by a microcomputer provided in the control device for the electrolyzed water generating device shown in FIG. 1;
FIG. 5 is a flowchart showing the remainder of a program executed by a microcomputer provided in the control device of the electrolyzed water generating device shown in FIG. 1;
[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), 20 ... electrolytic cell, 22, 23 ... electrode, 31, 32, 33, 34 ... lead-out pipe, 40 ... ozone supply means, V4 ... ozone supply valve (control means).

Claims (3)

An electrolytic cell in which the first and second electrodes are arranged to face each other and treated water flows in and out, water supply means for supplying the treated water to the electrolytic cell, and generated in the electrolytic cell. Electrolyzed water comprising a lead-out pipe for leading out the electrolyzed water, and a drainage means for draining the water in the electrolytic tank and the lead-out pipe, and at least the electrolytic tank and the lead-out pipe are made empty when the electrolysis generation operation is stopped In the generating apparatus, an ozone supply means for supplying ozone to the electrolytic cell and the outlet pipe is disposed, and ozone supply from the ozone supply means to the electrolytic tank and the outlet pipe is permitted when the electrolytic generation operation is stopped, An electrolyzed water generating apparatus comprising control means for stopping ozone supply from the ozone supply means to the electrolytic cell and the outlet pipe during electrolysis generation operation. 2. The electrolyzed water generating apparatus according to claim 1, wherein ozone is supplied to the electrolyzer and the outlet pipe by the control means at a predetermined amount every predetermined time. 3. The electrolyzed water generating device according to claim 1, wherein an ozone supply amount by the ozone supply is substantially equal to an internal space volume of the electrolytic cell and the outlet pipe.

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