Electrolysis: processes – compositions used therein – and methods – Electrolytic material treatment – Organic
Reexamination Certificate
1999-02-25
2001-05-08
Phasge, Arun S. (Department: 1741)
Electrolysis: processes, compositions used therein, and methods
Electrolytic material treatment
Organic
C205S746000, C205S747000, C205S751000, C204S263000, C204S264000
Reexamination Certificate
active
06228251
ABSTRACT:
TECHNICAL FIELD
The present invention relates to an electrolytic water producing apparatus comprising an electrolytic cell including an anode chamber and a cathode chamber, for producing alkali water and acid water, and a cleaning method for the electrolytic water producing apparatus, more specifically to an electrolytic water producing apparatus and a cleaning method for the electrolytic water producing apparatus which can effectively sterilize the anode chamber of the electrolytic cell.
BACKGROUND ART
Electrolytic water producing apparatuses each comprising an electrolytic cell including an anode chamber having an anode and a cathode chamber having a cathode have been conventionally known. In such electrolytic water producing apparatuses usual water is fed into the electrolytic cell to be made into alkali water and acid water in the electrolytic cell.
Generally calcium sticks to the cathode in the cathode chamber of the electrolytic cell as time passes, and the calcium is removed by changing over polarities of the anode and the cathode in the electrolytic cell (polarity reversion of the electrodes).
Of the alkali water and the acid water produced by the electrolytic water producing apparatuses, in some cases the former is used, the latter being drained, and in other cases the former is drained, the latter being used. In both cases, the cathode chamber is polluted with calcium. The use of the cathode chamber and the piping often increase bacteria, and the cathode chamber and the piping must be periodically sterilized and cleaned.
SUMMARY OF THE INVENTION
In consideration of these points the invention of the present application has been made. An object of the present invention is to provide an electrolytic water producing apparatus and a cleaning method therefore which can sterilize and clean the cathode chamber for producing alkali water, and the piping.
To this end, the electrolytic water producing apparatus according to the present invention comprises an electrolytic cell including an anode chamber having an anode, for producing acid water, and a cathode chamber having a cathode, for producing alkali water; an electric power source for applying a voltage between the anode and the cathode; a reservoir disposed on the side of an exit of the anode chamber of the electrolytic, for reserving the acid water; a discharge line disposed on the side of an exit of the cathode chamber of the electrolytic cell, for discharging the alkali water; a return mechanism for returning the acid water in the reservoir to the anode chamber; a first water supply line disposed on the side of an entrance of the anode chamber; a second water supply line disposed on the side of an entrance of the cathode chamber; and an interconnection means for interconnecting the first water feed line and the second water feed line.
The cleaning method for the electrolytic water producing apparatus comprises the steps of actuating the return mechanism to return the acid water in the reservoir to the anode chamber, feeding the acid water to the cathode chamber via the first water supply line, the interconnection means and the second water supply line, and then feeding the acid water outside from the cathode chamber; and applying a voltage between the anode and the cathode, so that the interior of the cathode chamber is sterilized by a high concentration of hypochlorous acid or hypochlorous acid soda.
According to the present invention, acid water in the reservoir tank is returned to the anode chamber by actuating the return mechanism, and a voltage is applied between the anode and the cathode, whereby a high concentration of hypochlorous acid or hypochlorous acid soda can be produced in the anode chamber. The high concentration of hypochlorous acid or hypochlorous acid soda is fed into the cathode chamber through the first feed line, the interconnection means and the second water feed line, sterilizing the interiors of the first water supply line, the interconnection means, the second water supply line and the cathode chamber, and is discharged outside through the discharge line, sterilizing the interior thereof.
REFERENCES:
patent: 5944978 (1999-08-01), Okazaki
Jacobson Price Holman & Stern PLLC
Phasge Arun S,.
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