JP3509960B2 - Electrolytic ionic water generator - Google Patents

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art An apparatus of this type is disclosed in, for example, Japanese Patent Laid-Open No. 4-33.
As disclosed in Japanese Patent No. 0987, if the polarity of the DC voltage applied to both electrodes is not switched and used for a long time,
There is a problem in that calcium, sodium, etc., adhere to the surface of the negative electrode in a layered form to reduce the current flow rate, and a desired electrolytic ion water cannot be obtained . In order to solve this problem, it is general practice to switch the polarity of the DC voltage applied to both electrodes to peel off the above-mentioned deposits from the electrodes (hereinafter, this is referred to as reverse electrolysis cleaning).

[0003]

By the way, in an electrolytic ionized water generator, an electrode in which platinum is plated on the surface of a titanium base material or platinum iridium is fired for reinforcement in consideration of catalytic function, durability and the like is adopted. and which is, for example, when obtaining switching the ion water generation state of the reverse voltage applied from the ion water generation state of the positive voltage application, that the switching Erareru electrode polarity from positive to negative significantly the affected energization rate decreases There is. This is because the concentration of hydrogen ions H ^{+ in} the electrode chamber accommodating the positive electrode is high when a positive voltage is applied, and when the hydrogen ions H ⁺ are switched to reverse voltage application, they are switched from positive to negative. Adhesion to the surface of the electrode and platinum plating on the surface of the titanium-Ti base material, hydrogen dissolves into the platinum film and reacts with the titanium base material inside. This is because titanium hydride TiH ₄ , which expands in volume, is generated, which lifts the platinum plating at the interface between the platinum plating and the titanium base material and separates the platinum plating. Also, the surface of the titanium base material was baked with platinum iridium. In the burned material, iridium oxide IrO ₂ in the calcined product reacts with hydrogen to be reduced, and metal iridium, which is easily soluble in water, is generated, which is eluted to expose the titanium base material and expose the exposed titanium. This is because the base material reacts with hydrogen to produce titanium hydride that is non-metallic and has poor electrical conductivity. Incidentally, such a phenomenon, that is, hydrogen embrittlement occurs in any case as long as the electrode is made of a metal material. The present invention has been made to address the above-mentioned problems, and the purpose thereof is to switch the polarity of DC voltage to ion water that is reverse to the ion water remaining in both electrode chambers in each electrode chamber. The purpose is to automatically neutralize or reverse ionize the water in each electrode chamber by automatically supplying water by the respective heads , and to suppress the loss time due to switching as much as possible.

[0004]

The present invention SUMMARY OF THE INVENTION may order to achieve the above object, a water storage tank for storing the treated water, such as fresh water or saline, a first electrode which is defined and formed therein by a diaphragm
First electrode and second electrode made of metal material in chamber and second electrode chamber
Connecting the electrolytic cell is disposed oppositely to each other, an electric pump for supplying said water storage tank <br/> of treated water to both electrode compartments of the electrolytic cell, the first electrode chamber and the second electrode chamber First exhaust pipe
And a second discharge pipe, and a treatment stored in the water storage tank
A first outlet pipe connected to the first exhaust pipe or the second discharge pipe includes an opening communicating with the clogs raised portion and the atmosphere Tachinobo above the water surface of the water, treated water is stored in the water storage tank
A second outlet pipe connected to the second exhaust pipe or the first exhaust pipe and having an opening that communicates with the atmosphere and a rising portion that rises above the water surface of the both exhaust pipes and the both outlet pipes. an electric switching valve for communicating said first discharge pipe or the second discharge pipe into the second exhaust pipe and the first discharge pipe is interposed in the connection site, changeover obtain electrode polarity of the DC voltage applied between the electrodes changer and the electric pump, selector valve, and the electrode switching electrolytic ion water generator odor that example Bei a control device for controlling the operation of the exchanger
Te, treated water supplied to the electrodes chamber of the electrolyzer from the water storage tank by the operation of the electric pump is the electrode switching
Each ionized water produced by electrolysis by the DC voltage applied to the both electrodes under the control of the vessel is discharged to the outlet pipes through the outlet pipes and the switching valve. Cut off
When granted the signal, after said said the electric pump is stopped to stop the voltage application to the electrodes
Operate the switching valve to disconnect the two exhaust pipes and both outlet pipes from each other.
Reversed ions remaining in the outlet tube due to replacement
The water is made to flow back into both the electrode chambers, and the electrode switching device is also provided.
To change the polarity of the DC voltage applied to both electrodes.
The control device is provided with a switching control means for switching and restarting the voltage application to the both electrodes during the reverse flow of the reverse ionized water and starting the electric pump .
The present invention provides an electrolytic ionized water generator .

[0005]

In the electrolytic ionized water generator according to the present invention, when the electric pump is driven and the DC voltage is applied to both electrodes of the electrolytic cell, water or saline solution is supplied from the water storage tank to both electrode chambers of the electrolytic cell. The treated water is pumped, the treated water is electrolyzed in the electrolytic cell, the acidic ion water with increased hydrogen ions is discharged from the electrode chamber of the positive electrode, and the hydroxide ion is discharged from the electrode chamber of the negative electrode. The alkaline ionized water with increased water content is discharged, the acidic ionized water is guided to one outlet pipe through one outlet pipe and the switching valve, and the alkaline ionized water is guided to the other outlet pipe through the other outlet pipe and switching valve. .

By the way, if there is a switching signal when the above-mentioned ion water is generated, the switching control means of the control device stops the voltage application to both electrodes based on this switching signal and also stops the electric pump, and then the switching valve operates. Flow path switching is performed to cause reverse ion water to flow backward from each outlet tube to the first and second electrode chambers, and during this time, the polarity of the DC voltage is switched by the electrode switching device. . Therefore, at this time,
The acidic ionized water remaining in one of the outlet pipes is automatically supplied to the discharge pipe and the electrode chamber in which the alkaline ionized water remains by a drop, and the alkaline ionized water remaining in the other outlet pipe is acidic ionized water. The water is automatically supplied by a drop toward the remaining discharge pipe and electrode chamber, and the water in each flow passage including each electrode chamber is quickly neutralized or deionized.

During the reverse flow of the reverse ionized water to the first and second electrode chambers, the switching control means of the control device restarts the voltage application to both electrodes and activates the electric pump. Therefore, at the initial stage of this operation, the electrode switched from positive to negative is not exposed to ion water having a high hydrogen ion concentration, and the deposits such as calcium and sodium start to be peeled from the electrode switched from negative to positive. Reverse electrolysis cleaning is started. Further, after that, the treated water that was pumped from the water storage tank to the electrode chambers of the electrolytic cell by the electric pump was electrolyzed in the electrolytic cell, and hydrogen ions increased from the electrode chamber of the electrode switched to the positive side. acid ion water is discharged, also a negative side alkaline ionized water hydroxide ion is increased from the electrode chamber switching the obtained electrode is discharged to, acidic ionized water again through switching valve is switched to the other of the discharge pipe The alkaline ionized water is guided to one of the discharge pipes, and the alkaline ionized water is again guided to the other discharge pipe through the switching valve switched to the one discharge pipe, and the above-mentioned reverse electrolysis cleaning is continued.

[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 treated water (tap water). The water storage tank 10 includes a water level sensor 11 (which detects an upper limit water level and a lower limit water level) internally connected to the control device 100, and based on a signal from the water level sensor 11, a water supply pipe 19 (for a water pipe) The electromagnetic open / close valve V1 provided in (connected) is opened / closed to maintain the water level in a predetermined range. Further, the water storage tank 10 is provided with an overflow pipe 12, and a pair of connecting pipes 21 and 22 connected to both inflow ports 31a and 31b of the electrolytic cell 30 are attached to the connecting pipes 21 and 21, respectively.
2 are provided with electric pumps P1 and P2 whose start and stop are controlled by the control device 100 and manually adjustable flow rate adjusting valves V2 and V3, respectively.
1, when driving P2, approximately the same amount of treated water is supplied to each connecting pipe 21,
It is configured to be supplied to both inflow ports 31 a and 31 b of the electrolytic cell 30 through 22. In addition, the connection pipes 21 and 22, the electric pumps P1 and P2, and the flow rate adjusting valve V described above.
Instead of the configuration of V2 and V3, a single connecting pipe with a branched tip, a single electric pump installed in the part of the connecting pipe before branching, and a single electric pump in the part of the connecting pipe after branching are connected respectively. A pair of installed flow rate adjusting valves (the above flow rate adjusting valves V2, V3
It is also possible to carry out using the same).

The electrolytic cell 30 includes a pair of inlets 31a and 31a.
tank body 31 having b and a pair of outlets 31c and 31d
And the first and second electrodes 32 and 33 facing each other in the tank body 31, and the first and second electrodes 32 and 33 disposed between the electrodes 32 and 33 to accommodate the electrodes 32 and 33. Electrode chamber 3
Is composed of a diaphragm 36 forming 4, 35,
Each of the electrodes 32 and 33 is made of a titanium base material, on the surface of which platinum plating or platinum iridium is fired, and the first electrode chamber 34 has an inlet 31a and an outlet 31.
c communicates with each other, and an inflow port 31b and an outflow port 31d communicate with the second electrode chamber 35. In addition, each outlet 31c, 31d
Are connected to first and second discharge pipes 23 and 24, and the first discharge pipe 23 and the second discharge pipe 24 are connected to the first or second discharge pipe 25 or 26 by a switching valve 70, respectively. Is configured.

As shown in FIGS. 1 and 2, the switching valve 70 is rotationally driven in the direction of the arrow in FIG. 1 by the drive shaft 72 of the electric motor 71, and each outlet pipe 2 of each discharge pipe 23, 24.
A rotary four-port two-position switching valve having a valve body 73 for switching communication between the electric motor 7,
A pair of disc cams 74 and 75 are integrally attached to the one drive shaft 72. As shown in FIG. 2B, the disc cam 74 has two cutouts 74a formed every 180 degrees on the circumference, and the position detection sensor 76 fixedly arranged on the main body.
The switching state of the switching valve 70 (communication direction by the valve body 73) can be detected depending on whether or not (see FIG. 2A) is engaged with the notch 74a, and the position detection sensor 76 is provided. The state in which the notch 74a is engaged corresponds to the state (positive electric state) shown by the solid line in FIG.
Further, as shown in FIG. 2C, the disc cam 75 has notches 75a formed at four positions on the circumference at every 90 degrees, and the position detection sensor 77 fixedly arranged on the main body is engaged with the notches 75a. The stop position timing of the electric motor 71 can be detected by matching. It should be noted that, instead of the switching valve 70 described above, the first discharge pipe 23 is communicated with the first or second outlet pipe 25 or 26 by the first three-port two-position switching valve, and the second discharge pipe 24. It is also possible to configure and implement so as to communicate with the second or first outlet pipe 26 or 25 by the second 3-port 2-position switching valve. In this case, the pair of disc cams 74 and 75 and the pair of position detection sensors 7 are mounted on the drive shaft of the electric motor that rotationally drives the valve element of each 3-port 2-position switching valve.
It is necessary to provide members corresponding to 6 and 77, respectively.

As shown in FIGS. 1 and 3, the first outlet pipe 25 has a rising portion 25a rising above the water surface of the water storage tank 10 and an opening 25b communicating with the atmosphere, and at the lower end thereof. It is connected to the switching valve 70 and has an opening 25b.
Is a first unit arranged a predetermined amount above the water surface of the water storage tank 10.
The upper portion of the storage tank 41 communicates with the atmosphere.
The second outlet pipe 26 has an opening 26 that communicates with a rising portion 26 a that rises above the water surface of the water storage tank 10 and the atmosphere.
b, and is connected to the switching valve 70 at the lower end, and the opening 26b communicates with the atmosphere at an upper portion in the second storage tank 42 arranged a predetermined amount above the water surface of the water storage tank 10. There is.

As shown in FIG. 3, the first storage tank 41 stores a required amount of alkaline ionized water, and is provided with a water level sensor 43 (which detects an upper limit water level and a lower limit water level) and an overflow pipe 44. Therefore, the alkaline ionized water inside can be fed to a desired place by appropriately driving the electric pump P3.
The second storage tank 42 stores a required amount of acidic ionized water, is provided with a water level sensor 45 (which detects the upper limit water level and the lower limit water level), and an overflow pipe 46, and By appropriately driving the electric pump P4, it can be fed to a desired location.

[0013] electrode switching device 50 may be a switching circuit using a Ru conductive magnetic relay (semiconductor switching the polarity of the DC voltage applied to the electrodes 32 and 33 of electrolytic cell 30 in response to signals from the control device 100 ), When a positive electric signal (ON signal) is received from the control device 100 in the state shown by the phantom line in FIG. 1, the state is switched to the solid line state and the negative electrode of the power supply circuit 60 is connected to the electrode 32. When the positive electrode is connected to the electrode 33, and when the reverse electric signal (OFF signal) is received from the control device 100 in the state shown by the solid line in FIG. 1, the negative electrode of the power supply circuit 60 is switched to the state of the virtual line. The positive electrode is connected to the electrode 33 and the positive electrode is connected to the electrode 32. Power circuit 60
Is for converting an AC voltage into a DC voltage of a predetermined value,
When the OFF signal is received from the control device 100, the DC voltage between the negative electrode and the positive electrode becomes zero,
Further, when an ON signal is received from the control device 100, 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. 4 and a program corresponding to the flowcharts of FIGS. 5 and 6, and the power switch shown in FIG. The operation of the electromagnetic on-off valve V1 is controlled based on the operation of the (ON / OFF switch) 101 and the signal from the water level sensor 11, and the generation operation switch (ON / OFF switch) 10 when the power switch 101 is in the ON state.
2 and the signals from the water level sensors 43 and 45 and the signals from the position detection sensors 76 and 77 attached to the switching valve 70, both electric pumps P1 and P2, the switching valve 70, the electrode switching device 50, and the power source. The operation of the circuit 60 and the like is controlled so that each operation described below can be obtained.

In the present embodiment configured as described above, when the power switch 101 is turned on, the microcomputer of the control device 100 causes the microcomputer of the control device 100 to perform step 201 in FIG.
At step 202, it is determined whether the water level in the water storage tank 10 is equal to or lower than 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. , Step 20
It is determined to be “YES” in step 2 and steps 203 and 204
The process of is executed.

In step 203 described above, the solenoid opening / closing valve V
A valve open signal is output to 1. Therefore, the electromagnetic opening / closing valve V1 is kept open and the treated water is injected into 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. After the determination in step 204 is “YES” and the process in step 205 is executed, the process 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 water injection 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. 4 is omitted in the drawing,
When the power switch 101 is turned off, the process similar to the above-described step 205 is executed and then the process ends.

On the other hand, when the generation operation switch 102 is turned on while the power switch 101 is turned on, the microcomputer of the control device 100 causes the microcomputer of the control device 100 to perform step 301 in FIG.
At step 302, whether or not the water level of at least one of the storage tanks 41, 42 is less than or equal to the lower limit water level based on the signals from the water level sensors 43, 45 of the storage tanks 41, 42. Is determined. At this time, if the water level of at least one of the two storage tanks 41, 42 is less than or equal to the lower limit water level, it is determined to be "YES" in step 302 and the process of step 303 is executed, and the water levels of the two storage tanks 41, 42 are If neither is lower than the lower limit water level, it is determined to be “NO” in step 302, and the process of step 302 (the process of maintaining the apparatus in the standby state) is repeatedly executed. In step 303 described above, the switching valve 70 is operated based on the signal from the position detection sensor 76.
Is in the positive power state shown by the solid line in FIG.
At this time, if the switching valve 70 is in the positive power state shown by the solid line in FIG. 1, it is determined to be “YES” in step 303, the processing of steps 304, 305, 306, 307, 308 is executed, and switching is performed again. If the valve 70 is in the reverse charge state shown by the phantom line in FIG. 1, it is determined to be “NO” in step 303 and steps 309, 305, 306, 307, 30 are determined.
Process 8 is executed.

In step 304 described above, the electrode selector 5
A positive power signal is output to 0, a start signal is output to the electric pumps P1 and P2 in step 305, an ON signal is output to the power supply circuit 60 in step 306, and step 307 is performed.
Then, the integration timer (not shown) provided in the control device is started (the integration value t is integrated). Therefore, the switching valve 7
When 0 is in the positive power state shown by the solid line in FIG. 1, the electric pumps P1 and P2 are started and the power supply circuit 60
A positive DC voltage of a predetermined value is applied to both electrodes 32, 33 of the electrolytic cell 30 from both electrodes via the electrode switch 50 in the solid line state. Therefore, the treated water in the water storage tank 10 passes through the electric pumps P1 and P2, the connecting pipes 21 and 22, and the flow rate adjusting valves V2 and V3, and the electrolysis chambers 34 and 35 of the electrolysis tank 30.
Is supplied to the drain pipe 23 and the positively charged switching valve 70, the treated water is electrolyzed in the electrolytic cell 30, and the alkaline ionized water in which the hydroxide ions are increased is discharged from the electrode chamber 34 of the negative electrode 32. Through the conduit 25 and the storage tank 41
The acidic ionized water having hydrogen ions increased from the electrode chamber 35 of the positive electrode 33 is sent to the storage tank 42 through the discharge pipe 24, the switching valve 70 in the positive electric state and the conduit 26.

On the other hand, in step 309 described above, a reverse electric signal is output to the electrode switch 50. Therefore, when the switching valve 70 is in the reverse charging state shown by the phantom line in FIG.
The electric pumps P1 and P2 are activated, and a reverse voltage of a predetermined value is applied from both electrodes of the power supply circuit 60 to both electrodes 32 and 33 of the electrolytic cell 30 via the electrode switch 50 in the virtual line state. . Therefore, the treated water in the water storage tank 10 passes through the electric pumps P1 and P2, the connection pipes 21 and 22, and the flow rate adjusting valves V2 and V3, and the electrolysis chambers 3 of the electrolysis tank 30.
4 and 35, the treated water is electrolyzed in the electrolytic cell 30, and the alkaline ionized water in which the hydroxide ions are increased from the electrode chamber 35 of the minus side electrode 33 is in a reverse electric state with the discharge pipe 24. It is sent to the storage tank 41 through the switching valve 70 and the conduit 25, and also the electrode chamber 34 of the plus side electrode 32.
The acid ion water with increased hydrogen ions is discharged from the discharge pipe 23
Then, it is sent to the storage tank 42 through the switching valve 70 and the conduit 26 which are in the reverse electric state.

In step 308 described above, it is determined based on the signals from the water level sensors 43 and 45 of the storage tanks 41 and 42 whether or not the water levels of the storage tanks 41 and 42 are both above the upper limit water level. At this time, both storage tanks 4
If the water levels of 1, 42 are both higher than or equal to the upper limit water level, it is determined to be “YES” in step 308 and steps 310, 3
After the processing of Nos. 11 and 312 is executed, the process returns to Step 302 described above, and if the water levels of both storage tanks 41 and 42 are not higher than or equal to the upper limit water level, "N" is given at Step 308.
It is determined to be “O”, the above-described operation of generating ionized water is continued, and the process of step 313 is executed.

In step 310, the integration timer is stopped (integration interrupted), an OFF signal is output to the power supply circuit 60 in step 311, and a stop signal is output to the electric pumps P1 and P2 in step 312. Therefore, from both electrodes of the power supply circuit 60 to both electrodes 3 of the electrolytic cell 30.
The voltage application to 2, 33 is stopped, the electric pumps P1, P2 are stopped, and the above-described operation of generating ionized water is interrupted. Therefore, the electrolytic cell 30, the discharge pipes 23 and 24, and the outlet pipe 2 which are located above the water level of the water storage tank 10.
Water remaining in the water tanks 5, 26 and the like automatically flows back to the water storage tank 10 through the electric pumps P1 and P2 in the stopped state due to the head, and excess water is discharged from the overflow pipe 12 to the outside of the water storage tank 10.

In step 313, it is determined whether the integrated value t of the integration timer is equal to or greater than the set value to (for example, 2 hours). At this time, if the integrated value t of the integration timer is not equal to or greater than the set value to, it is determined as "NO" in step 313 and the process returns to step 308 described above.
If the integrated value t of the integration timer is equal to or greater than the set value to, it is determined as "YES" in step 313, and
The processing of steps 314, 315, and 316 is executed. An OFF signal is output to the power supply circuit 60 in step 314, and a stop signal is output to the electric pumps P1 and P2 in step 315. Further, in step 316, similarly to step 303 described above, it is determined based on the signal from the position detection sensor 76 whether or not the switching valve 70 is in the positive charging state shown by the solid line in FIG. At this time, the switching valve 70 is
If it is the positive power state indicated by the solid line, it is determined to be “YES” in step 316, the processing of steps 317 and 318 is executed, and then the processing of step 321 is executed,
If the switching valve 70 is in the reverse charging state shown by the phantom line in FIG. 1, it is determined to be “NO” in step 316 and the processes of steps 319 and 320 are executed, and then step 32.
The process 1 is executed.

In steps 317 and 319 described above, a start signal is output to the electric motor 71 which switches the switching valve 70, a reverse signal is output to the electrode switch 50 in step 318, and a positive signal is output to the electrode switch 50 in step 320. No. is output. In step 321, the switching valve 7
Based on a signal from the position detection sensor 77 attached to 0, it is determined whether or not the valve body 73 of the switching valve 70 has reached the switching completion position (solid line position or virtual line position in FIG. 1), and step 317 described above. Alternatively, until the valve body 73 rotationally driven by the electric motor 71 reaches the switching completion position by executing 319, the determination in step 321 is “NO”, the process of step 321 is repeatedly executed, and the valve body 73 is switched. When the completion position is reached, in step 321 "Y
After "ES" is determined and the processes of steps 322 to 325 are executed, the process returns to step 308 described above. In step 322, a stop signal is output to the electric motor 71 that switches the switching valve 70, and in step 323, the power circuit 60
Is output to the electric pumps P1 and P2 in step 324, and the integration timer is reset to zero in step 325.

The execution of the program corresponding to the flow charts of FIGS. 4 and 5 is omitted, but the generation operation switch 102 (or the power switch 101) is turned off so that the steps 310, Three
The processing is the same as that of 11, 312 and is ended after the processing is executed.

Therefore, in this embodiment, when the power switch 101 and the generation operation switch 102 are in the ON state, as shown in FIG. 1, the water level in the water storage tank 10 is approximately the upper limit water level, and both storage tanks When the water levels in 41 and 42 are both substantially at the upper limit water level, step 20 in FIG.
2 is repeatedly executed, and at the same time, the process of step 302 of FIG.
Is kept closed and the electric pumps P1,
Both P2 are stopped, the output of the power supply circuit 60 is zero, and the electrolytic treatment in the electrolytic bath 30 is stopped, and the standby state is maintained.

If the ionized water in each storage tank 41, 42 is used and consumed and the water level of at least one of the storage tanks 41, 42 falls below the lower limit water level, "YES" is determined in step 302 of FIG. Is determined, step 3
If the switching valve 70 is in the positive power state at this time, the steps 304, 305, 306, 307,
If the process of 308 is executed and the switching valve 70 is in the reverse power state, steps 309, 304, 306, 307, 3 are performed.
08 processing is executed, and thereafter both storage tanks 41, 4
Steps 308 and 31 until both the water levels in 2 are above the upper limit water level or the integrated value t of the integration timer reaches the set value to
The treatment of 3 is repeated to maintain the ionized water production state.

Therefore, the treated water in the water storage tank 10 is supplied to the electrolytic bath 30 and electrolyzed, and the respective ionized water produced thereby is discharged from the electrolytic bath 30 into the discharge pipes 23, 24.
And is sent to the corresponding storage tanks 41 and 42 through the switching valve 70 and the outlet pipes 25 and 26, respectively. During this operation, until the water level in the water storage tank 10 becomes lower than or equal to the lower limit water level, the process of step 202 of FIG. 4 is repeatedly executed to maintain the electromagnetic on-off valve V1 in the closed state, and When the water level becomes equal to or lower than the lower limit water level, the processes of steps 203 and 204 of FIG. Is injected into. Further, if the water level in the water storage tank 10 becomes equal to or higher than the upper limit water level due to the treated water being injected into the water storage tank 10,
The processing of steps 205 and 206 of FIG. 4 is executed to close the electromagnetic on-off valve V1 and maintain it in that state.

When the water levels in both storage tanks 41 and 42 both exceed the upper limit water level in the above-described ionized water production state (when steps 308 and 313 in FIG. 5 are repeatedly executed), steps 310 and 311 in FIG. After the process of 312 is executed, the process of step 302 is executed, the integration timer is stopped, the voltage application from both electrodes of the power supply circuit 60 to both electrodes 32 and 33 of the electrolytic cell 30 is stopped, and the electric The pumps P1 and P2 are stopped and maintained in that state. Therefore, at this time, the water storage tank 1
Electrolyzer 30 above the water level of 0, discharge pipes 23, 24
And the water remaining in the outlet pipes 25, 26, etc. passes through the electric pumps P1, P2 which are in a stopped state due to the head of the water storage tank 10.
The operation of discharging the excess water from the overflow pipe 12 to the outside of the water storage tank 10 is automatically obtained, and the operation of generating the above-described ion water is interrupted, and the state is maintained.

When the integrated value t of the integration timer reaches the set value to in the above-described ionized water producing state, the processes of steps 314 to 325 of FIG. 6 are executed and then the process of step 308 of FIG. 4 is executed. To be done. Therefore, at this time, the voltage application from both electrodes of the power supply circuit 60 to both electrodes 32 and 33 of the electrolytic cell 30 is stopped, and the flow passages are switched by the switching valve 70 after the electric pumps P1 and P2 are stopped. During this flow path switching, the DC voltage is switched between forward and reverse by the electrode switch 50, and the electric pumps P1 and P2 are also switched.
Of both electrodes 3 during the reverse flow of the reverse ionized water obtained by stopping the flow of water and switching the flow path by the switching valve 70 to the electrode chambers 34, 35.
When the voltage application to the batteries 2 and 33 is restarted, the electric pumps P1 and P2 are started to move from the water storage tank 10 to the electrolytic cell 30.
The treated water is sent under pressure to the ionized water generation state again, and the integrated value t of the integration timer is restarted from zero. When the switching valve 70 is in the positively charged state in the ion water production state in steps 308 and 313 in FIG. 5, steps 314, 315, 316, 317 in FIG.
After the processes of 318, 321, 322, 323, 324, and 325 are executed, the process of step 308 of FIG. 5 is executed, and the switching valve 70 is reversed in the ion water generation state of steps 308 and 313 of FIG. When the power is on, steps 314, 315, 316, 319 and 32 in FIG.
After the processing of 0, 321, 322, 323, 324, 325 is executed, the processing of step 308 of FIG. 5 is executed.

By the way, in the present embodiment, as described above, the control unit 100 uses the integrated value t of the integrated timer when the integrated value t of the integrated timer reaches the set value to in the ion water generation state as a switching signal. Are both electrodes 3 of the electrolytic cell 30
After stopping the voltage application to 2, 33 and stopping the electric pumps P1, P2, the flow path is switched by the switching valve 70, and the respective outlet pipes 25, 26 are connected to the electrode chambers 34, 3 respectively.
5. Reverse ionized water is made to flow backward to the electrode 5, and the electrode switch 5
The DC voltage is switched between 0 and 0. Therefore,
At this time, the acidic ionized water remaining in the lead-out tube 26 remains in the discharge tube and the electrode chamber (23) where the alkaline ionized water remains.
And 34 or 24 and 35) and the alkaline ionized water remaining in the outlet pipe 25 is automatically supplied by a drop, and the discharge tube and the electrode chamber (24 and 35 or 23 and 34) in which the acidic ionized water remains. ), The water in each flow passage including the electrode chambers 34 and 35 is quickly neutralized or reverse ionized.

Further, each electrode chamber 3 of the above-mentioned reverse ionized water
During the reverse flow to 4, 35, the control device 100
The voltage application to 2, 33 is restarted (step 3 in FIG. 6).
23) and the electric pumps P1 and P2 are started (see step 324 in FIG. 6). Therefore, the electrode 33 or 3 switched from positive to negative at the initial stage of the ion water production operation after the switching of the flow path and the DC voltage described above.
2 is not exposed to ionized water with high hydrogen ion concentration, and electrode 3 is switched from negative to positive.
The deposits such as calcium and sodium start to be peeled off from 2 or 33 and the reverse electrolysis cleaning is started. Further, after that, the treated water that is pressure-fed from the water storage tank 10 to the two electrode chambers 34 and 35 of the electrolysis tank 30 by the electric pumps P1 and P2 is electrolyzed in the electrolysis tank 30, and the electrodes switched to the positive side. Acidic ion water with increased hydrogen ions is discharged from the electrode chamber 34 or 35, and alkaline ionized water with increased hydroxide ions is discharged from the electrode chamber 35 or 34 of the electrode switched to the negative side to generate acidic ion water. The water is led again to the outlet pipe 26 through the switching valve 70 switched to the discharge pipe 23 or 24, and the alkaline ionized water is switched to the discharge pipe 24 or 23 by the switching valve 70.
Through the lead-out pipe 25, and the above-mentioned reverse electrolysis cleaning is continued.

In the above embodiment, the integrated value t of the integrated timer (which integrates the ion water generation operation time after switching the switching valve 70 and the electrode switching device 50) provided in the control device 100 becomes the set value to. When the integrated value t of the integration timer at this time is used as the switching signal, the control device 100 applies the voltage to both electrodes 32 and 33 based on the switching signal when the ion water is generated, as shown in steps 314 to 325 of FIG. After stopping the electric pumps P1 and P2 and switching the flow paths by the switching valve 70,
The reverse ionized water is caused to flow backward from 26 to the electrode chambers 34 and 35,
Further, during this period, the DC voltage is switched between normal and reverse by the electrode switch 50, and the voltage application to both electrodes 32 and 33 is restarted during the reverse flow of the reverse ion water to the electrode chambers 34 and 35 described above, and the electric pump is driven. Although P1 and P2 are activated, a switching ON signal of the switching command switch 103 (self-restoring normally open switch) provided in parallel with the power switch 101 and the generation operation switch 102 shown in FIG. As described above, the control device 100 causes the electrodes 32, 3 to
It is also possible to control the application of voltage to the motor 3, the stop / start of the electric pumps P1 and P2, and the forward / reverse switching of the DC voltage by the electrode switching device 50. In this case, steps 307 and 310 of FIG. 5 and step 325 of FIG. 6 are not necessary, and a step of determining whether or not the switch command switch 103 has been pushed on instead of step 313 of FIG. Need to be provided.

Further, in the above embodiment, it is assumed that when the process of step 322 of FIG. Although the step 323 is executed, as shown by the phantom line in FIG.
A reverse flow detection float switch 13 (which detects a water level higher than the upper limit water level detected by the water level sensor 11 and lower than the upper end opening of the overflow pipe 12 by ON operation) is provided in 0, and a reverse flow is provided between steps 322 and 323 of FIG. If the detection float switch 13 is ON, step 323 may be executed, and if the detection float switch 13 is OFF, determination means may be provided to maintain the state up to step 322.

Further, in the above embodiment, the present invention was carried out by using tap water as treated water.
It is also possible to carry out the present invention using treated saline as the treated water obtained by the device disclosed in Japanese Patent No. 576.
Further, in the above embodiment, the openings 25b and 26b of the outlet pipes 25 and 26 are made to communicate with the atmosphere at the upper portions in the storage tanks 41 and 42 as shown in FIG. As shown by the phantom line in FIG. 3, each outlet pipe 25, 2
It is also possible to branch the upper end of 6 up and down so that the lower opening is placed in ionized water and the upper opening is communicated with the atmosphere. In this case, the level of the upper opening needs to be set in consideration of the discharge capacities of the electric pumps P1 and P2 so that ionized water will not be ejected. Also, FIG.
When the configuration shown by the phantom line is adopted, the branch pipes extending below the upper end portions of the outlet pipes 25 and 26 are lengthened so that the storage tanks 41 and 42 are separated from each other.
It is also possible to arrange it at the same level as 0 or a lower level.

[0035]

In summary, in the electrolytic ionized water generator according to the present invention, the alkaline ionized water remaining in one of the outlet pipes remains the acidic ionized water when the voltage application is switched by the electrode switching means provided in the controller. The acidic ion water remaining in the other outlet pipe is automatically supplied to the discharge pipe and the electrode chamber by the drop, while the acidic ion water remaining in the other outlet pipe is automatically supplied to the discharge pipe and the electrode chamber where the alkaline ion water remains. As a result, the water in each flow passage including each electrode chamber is quickly neutralized or reverse ionized, so that the electrodes in the electrode chamber that accommodates the electrode that can be switched from positive to negative can be prevented from being attacked by hydrogen ions. Therefore, hydrogen embrittlement can be suppressed, and the life of the electrode can be extended.

Further, the electrolytic ionized water producing apparatus according to the present invention is adapted to automatically supply the respective ionized water remaining in the respective outlet pipes to the respective electrode chambers by utilizing the head as described above. It has a simple structure, can be manufactured at low cost, has few failures, and has extremely good maintainability. Also,
In the electrolytic ionized water generator according to the present invention, since the voltage application to both electrodes of the electrolytic cell is restarted and the pump is started during the reverse flow of the above-described reverse ionized water to the electrode chambers, the voltage during continuous operation is reduced. Loss time required to switch the application (temporary stoppage of electrolytic ionized water production)
Can be shortened and electrolytic ionized water can be efficiently generated.

[Brief description of drawings]

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

2A is a side view showing a drive unit of the switching valve shown in FIG. 1, FIG. 2B is a front view of a left disc cam alone, and FIG.
[FIG. 6] is a front view of a single disc cam on the right side.

FIG. 3 is a diagram showing a configuration of both storage tanks connected to the electrolytic ionized water generator shown in FIG. 1.

FIG. 4 is a flowchart showing a program (a control program for an electromagnetic opening / closing valve) executed by a microcomputer included in the control device for the electrolytic ionized water production device shown in FIG. 1.

5 is a program executed by a microcomputer included in the control device for the electrolytic ionized water generation device shown in FIG. 1 (control program for electric pump, electrolytic cell, and switching valve).
3 is a flowchart showing a part of FIG.

FIG. 6 is a program executed by a microcomputer included in the control device for the electrolytic ionized water generation device shown in FIG. 1 (control program for electric pump, electrolytic cell, and switching valve).
It is a flowchart which shows the remaining part.

[Explanation of symbols]

10 ... Water tank, 21, 22 ... Connection pipe, 23 ... 1st discharge pipe, 24 ... 2nd discharge pipe, 25 ... 1st derivation pipe, 26 ... 2nd derivation pipe, 25a, 26a ... Rising part, 25b, 26b …
Opening, 30 ... Electrolyzer, 32 ... First electrode, 33 ... Second electrode, 34 ... First electrode chamber, 35 ... Second electrode chamber, 36 ... Diaphragm, 50 ... Electrode changer, 60 ... Power supply circuit, 70 ... Switching valve, 100 ... Control device, 101 ... Power switch, 102
... Generation operation switch, P1, P2 ... Electric pump.

Claims (3)

(57) [Claims] 1. A water storage tank for storing treated water such as fresh water or salt water, and a first electrode chamber partitioned and formed inside by a diaphragm.
And a first electrode and a second electrode made of a metal material in the second electrode chamber.
An electrolytic bath arranged so as to face each other, wherein an electric pump that the treated water in the water tank is supplied to both electrodes chamber of the electrolytic cell, the first discharge tube connected to said first electrode chamber and the second electrode chamber
And a second discharge pipe, and a treatment stored in the water storage tank
A first outlet pipe connected to the first exhaust pipe or the second discharge pipe includes an opening communicating with the clogs raised portion and the atmosphere Tachinobo above the water surface of the water, treated water is stored in the water storage tank
A second outlet pipe connected to the second exhaust pipe or the first exhaust pipe and having an opening that communicates with the atmosphere and a rising portion that rises above the water surface of the both exhaust pipes and the both outlet pipes. an electric switching valve for communicating said first discharge pipe or the second discharge pipe into the second exhaust pipe and the first discharge pipe is interposed in the connection site, changeover obtain electrode polarity of the DC voltage applied between the electrodes changer and the electric pump, selector valve, and the electrode switching electrolytic ion water generator odor that example Bei a control device for controlling the operation of the exchanger
The treated water supplied from the water storage tank to both electrode chambers of the electrolytic cell by the operation of the electric pump is
Under the control, the switching signal is generated in a state where the ionized water produced by the electrolysis by the DC voltage applied to the both electrodes flows out to the outlet pipes through the outlet pipes and the switching valve.
Signal is given , the voltage application to both electrodes is stopped and the electric pump is stopped, and then the switching is performed.
Operate the valve to switch the communication between the two discharge pipes and the two discharge pipes.
The reverse ionized water remaining in the outlet pipe by
Backflow into both the electrode chambers and make the electrode selector.
By switching the polarity of the DC voltage applied to both electrodes.
An electrolyzed ionized water production apparatus characterized in that the control device is provided with a switching control means for restarting the voltage application to the both electrodes and activating the electric pump during the reverse flow of the reversely ionized water. 2. A comprises an integrated timer for integrating ion water generation time after switching example of the switching valve and the electrode switching unit, the
The switching signal can the accumulated value of the integrated timer reaches the set value
2. The electrolytic ionized water producing apparatus according to claim 1, wherein a number is assigned to the switching control means . 3. A switch command switch which is operated by a pushing operation.
Includes a switch, the switching by the operation of the switching command switch
2. The electrolytic ion generator according to claim 1, wherein a signal is given to the switching control means .