JP3275106B2 - Electrolytic ionic water generator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrolytic ionic water generator for producing alkaline ionic water and acidic water by electrolysis and electroosmosis of tap water or the like.

[0002]

2. Description of the Related Art In an electrolytic ionized water generator, when tap water or the like is continuously electrolyzed for a long time, calcium ions, magnesium ions, etc. contained in the water are converted to hydroxides or carbonates, etc. And since it adheres and deposits on the diaphragm, and gradually lowers the electrolysis ability due to the interruption of energization, conventionally, the polarity of the energization is sometimes reversed during use, and washing,
Although cleaning is performed after use is stopped,
It was not always possible to sufficiently wash.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to easily and quickly wash and remove scale, rust, scale, and the like that adhere to and accumulate on electrodes, diaphragms, and tank walls during the generation of electrolytic ionic water. With the goal.

[0004]

Means for Solving the Problems A cathode electrode and an anode electrode are disposed opposite to each other via a diaphragm in an electrolytic cell, and raw water is supplied from a water supply port, and electricity is supplied from an electric power supply to supply the cathode by electrolysis and electroosmosis. chambers alkaline ionized water, in the electrolytic ion water generator which is adapted to generate the acidic water in the anode chamber is provided with a polarity switching device for switching the energization polarity circuit for energizing the cathode and electrode electrode from said power source, ions And a control circuit for performing cleaning while switching the polarity switcher alternately at regular time intervals during the cleaning outside the water generation period .

[0005]

According to the present invention, as described above, a polarity switching device for switching the polarity of current supply is provided in a circuit for supplying electricity from the power supply to the negative electrode, and the polarity switch is switched alternately forward and reverse at a set time interval during cleaning. Since the control circuit for performing the cleaning is provided, the electrolytic cleaning can be performed while periodically inverting the cathode and the anode alternately, whereby the effects of the cathodic electrolysis and the anodic electrolysis can be repeatedly provided to enhance the cleaning effect.

Hereinafter, the present invention will be described with reference to an embodiment of the drawings. In FIG. 1, reference numeral 1 denotes an electrolytic cell in which a cathode electrode 3 and an anode electrode 4 are disposed via a diaphragm 2 and a lower water supply port 1 is provided.
Raw water is supplied from a, and alkaline ionized water flows out from a discharge port 1b communicating with an upper cathode chamber, and acidic water flows out from a discharge port 1c in an anode chamber. Reference numeral 5 denotes a water supply sensor provided at the water supply port 1a for detecting a water pressure or a water flow, 6 denotes an AC power supply, 7 denotes a transformer, 8 denotes a rectifier, and 9 denotes a smoothing capacitor. 10 power switch 11 if turned on by the water supply sensing signal of the water supply sensor 5
Or a switch linked to the start switch 15 for cleaning
Reference numeral 2 denotes a polarity switch inserted in a power supply output and an energizing circuit between the electrodes 3 and 4, and four thyristors SCR1, SCR2, SC
It is configured by combining R3 and SCR4. 1
The driver 3 is controlled by the control circuit 14. Reference numeral 15 denotes a start switch for cleaning.

In the above, when the faucet (not shown) is opened and water is supplied to the electrolytic cell 1 after the power switch 10 is turned on, the switch 11 is closed by the detection of the sensor 5 and a DC voltage is applied between the electrodes 3 and 4 with the polarity shown in FIG. Energized, the supplied water is electrolyzed, and electroosmosis is performed through the diaphragm 2,
Alkaline ion water is generated in the cathode chamber, and acidic water is generated in the anode chamber. These can be discharged from the discharge ports 1b and 1c and used. When such generation of ionic water is continued, scale is deposited and deposited mainly on the cathode electrode 3, the diaphragm 2 and the like as time passes. As the scale amount increases, the electrolytic capacity decreases, and the required ionic water cannot be generated.

When such a state is sensed, the start switch 15 for cleaning is turned on. The control of the switch 15 may be manual or automatic. The operation of the control circuit 14 is as follows. That is, when the switch 15 is operated, the flip-flop 1
6 is inverted to output "1" to the Q terminal and the counter 17 is loaded, so that the clock of the oscillator 18 is counted. The counter 17 sets a preset value by means of the digital switches 20 and 21, the set value is alternately preset through the data selector 19, and adds the count output to the flip-flop 22 to perform inversion control. Assuming that the set value by the digital switch 20 is t ₁ and the set value by the digital switch 20 is t ₂ , the counter 17
Respectively adds a signal corresponding to t ₁ and t ₂ to the flip-flop 22 alternately each time this value is counted, so that the output “1” corresponding to t _{1 and} the output “corresponding to t ₂ ” are alternately output to the output Q and bar Q. 1 "and outputs a signal to the driver 13 through the AND gates 23 and 24. The driver 13 turns on the switches SCR2 and SCR3 of the changeover switch for a pulse width of t ₁ by the signal from the gate 23 to conduct reverse polarity current with the cathode electrode 3 as the positive electrode and the anode electrode 4 as the negative electrode. The signal makes the SCR1 and SCR4 conductive for a pulse width of t ₂ to conduct positive polarity current. Therefore, the alternating pulse application of the positive polarity and the negative polarity during this cleaning is as shown in FIG.

The output of the counter 17 is added to another counter 25 and counted. The counter 25 is loaded by the output of the flip-flop 16, and the count value is set by the digital switch 26. Assuming that the set value is T, when the count value reaches T, the output “0” is added to the flip-flop 16 to clear it. And gates 23 and 24 are closed. Therefore, the driver 13 maintains the original state in which the SCR1 and SCR2 are conducted, and the generation of electrolytic ionic water is resumed while maintaining the positive polarity. That is, the counter 2
The set value T of 5 determines the cleaning time as shown in FIG.

When the cleaning switch 15 is turned on as described above, a cleaning operation for a predetermined set time T is performed. During the period, the cleaning is performed at short intervals t ₁ and t ₂ while reversing the polarity of the current, and electrolytic cleaning is performed. Is performed by alternately switching the cathode and the anode periodically, and the actions of the cathodic electrolysis and the anodic electrolysis are repeatedly provided. In anodic electrolytic cleaning, a strong oxidation reaction is caused by the generation of oxygen gas, which provides a stirring effect for the gas. In addition, anodic dissolution and the like are used for cleaning. In cathodic electrolytic cleaning, hydrogen gas is generated. The mixing effect is doubled, and the stirring action works violently to enhance the effect of removing scale and the like. Since the anodic electrolysis and the cathodic electrolysis alternately work, the cleaning effect is high and the cleaning speed is high, and the scale deposited on the cathode electrode 3, the rust, scale, etc. adhering to the diaphragm 2 and the tank wall can be easily and quickly removed. Can be removed.

The rotation speed during cleaning is t ₁ = 5 to 60 s.
ec, t ₂ = about 0.5 to 5 sec. This is set by the digital switches 20 and 21 and the cleaning time is T = 10 sec.
It can be arbitrarily set by the digital switch 26 to about 10 to 10 minutes. When the cleaning switch 15 is automatically controlled, a time control in which the electrolytic ionized water generation time is set to a predetermined value may be performed. However, the decrease in the electrolytic current is used as a signal, or the integrated value of the electrolytic current and the integrated flow rate of the treated water are signaled. Or a combination of these signals can be controlled. Further, a circuit configuration for controlling the cleaning time T, the polarity inversion pulses t ₁ , t _{2, and the} like of the control circuit 14 can be used without being limited to the illustrated embodiment.

[0012]

As described above, according to the present invention, a polarity switch for switching the polarity of current supply is provided in a circuit for supplying electricity from the power supply to the negative electrode, and the polarity switch is alternately switched between normal and reverse at a set time interval during cleaning. Since the cleaning is performed while switching to the above, the electrolytic cleaning can be performed while periodically inverting the cathode and the anode alternately, whereby the action of the cathodic electrolysis and the anodic electrolysis can be repeatedly provided to enhance the cleaning effect. In addition, the cleaning time can be shortened to completely restore the electrolytic ability of the electrode. In addition, the washing is not limited to the electrodes, and acts on the diaphragm, the inner wall of the tank, etc., so that scales and the like can be effectively washed and removed to be cleaned.

[Brief description of the drawings]

FIG. 1 is a circuit configuration diagram of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of the embodiment of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electrolyzer 1a Water supply port 1b Alkaline ionized water discharge port 1c Acidic water discharge port 2 Diaphragm 3 Cathode electrode 4 Anode electrode 6 AC power supply 7 Transformer 8 Rectifier 12 Polarity switch 13 Driver 14 Control circuit 15 Cleaning switch

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-3-109988 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) C02F 1/46-1/469

Claims (1)

(57) [Claims] 1. A cathode electrode and an anode electrode are disposed opposite to each other via a diaphragm in an electrolytic cell. Raw water is supplied from a water supply port, and electricity is supplied from an electric power supply to supply alkaline water to the cathode chamber by electrolysis and electroosmosis. In an electrolytic ionic water generating apparatus configured to generate acidic water in the water and anode chambers, a polarity switch for switching the polarity of power supply is provided in a circuit for supplying power from the power supply to the negative electrode, and the polarity switcher is provided outside the ionic water generation period. A control circuit for performing cleaning while switching the polarity switcher between forward and reverse alternately at a set time interval during cleaning.