MEMBRANE-ELECTRODE ASSEMBLY, ELECTROLYTIC CELL EMPLOYING THE SAME, ELECTROLYTIC-WATER SPRAYER, AND METHOD OF STERILIZATION

• US 20090127128A1
• Filed: 10/29/2008
• Published: 05/21/2009
• Est. Priority Date: 11/15/2007
• Status: Abandoned Application

• Current Assignee: Institute of National Colleges of Technology Japan, Permelec Electrode, Ltd.
• Original Assignee: Institute of National Colleges of Technology Japan, Permelec Electrode, Ltd.
• Inventors: TANAKA, Masashi, SUZUKI, Tomohisa, SEKIDO, Kota, SHIBATA, Tomoyasu, KITAORI, Noriyuki, FURUTA, Tsuneto, NISHIKI, Yoshinori
• Application Number:
  US12/260,724
• Publication Number:
  US 20090127128A1
• Time in Patent Office: Days
• US Class Current: 205/464
• CPC Class Codes: A61L 2/0088 Liquid substances
• CPC Class Codes: A61L 2/18 Liquid substances or solutions comprising solids or dissolved gases
• CPC Class Codes: A61L 2/183 Ozone dissolved in a liquid
• CPC Class Codes: A61L 2/186 Peroxide solutions
• CPC Class Codes: A61L 2202/11 Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps
• CPC Class Codes: A61L 2202/15 Biocide distribution means, e.g. nozzles, pumps, manifolds, fans, baffles, sprayers
• CPC Class Codes: C02F 1/4618 for producing "ionised" acidic or basic water
• CPC Class Codes: C02F 1/66 by neutralisation; pH adjustment for degassing C02F1/20; using ion-exchange C02F1/42; for flocculation or precipitation of suspended impurities C02F1/52; for removing dissolved compounds C02F1/58
• CPC Class Codes: C02F 2001/46142 Catalytic coating
• CPC Class Codes: C02F 2001/46152 characterised by the shape or form electrodes in particulate form or with conductive or non-conductive particles between them C02F1/46114
• CPC Class Codes: C02F 2001/46161 Porous electrodes
• CPC Class Codes: C02F 2201/003 Coaxial constructions, e.g. a cartridge located coaxially within another
• CPC Class Codes: C02F 2201/4611 Fluid flow
• CPC Class Codes: C02F 2201/46115 Electrolytic cell with membranes or diaphragms
• CPC Class Codes: C02F 2201/46125 Electrical variables
• CPC Class Codes: C02F 2201/46145 Fluid flow
• CPC Class Codes: C02F 2301/026 Spiral, helicoidal, radial
• CPC Class Codes: C02F 2305/04 Surfactants, used as part of a formulation or alone
• CPC Class Codes: C25B 1/13 Ozone
• CPC Class Codes: C25B 11/02 characterised by shape or form
• CPC Class Codes: C25B 9/19 : with diaphragms

Abstract

The present invention provides a membrane-electrode assembly which comprises: at least one rod-form or tubular electrode; a tubular diaphragm disposed around the periphery of the electrode; and a wire-form counter electrode disposed around the periphery of the diaphragm, the diaphragm being fixed to the rod-form or tubular electrode with the wire-form counter electrode to thereby form an electrode chamber having a gas/liquid passage between the diaphragm and the rod-form or tubular electrode.

Claims

1. A membrane-electrode assembly which comprises:

at least one rod-form or tubular electrode;

a tubular diaphragm disposed around the periphery of the electrode; and

a wire-form counter electrode disposed around the periphery of the diaphragm,

the diaphragm being fixed to the rod-form or tubular electrode with the wire-form counter electrode to thereby form an electrode chamber having a gas/liquid passage between the diaphragm and the rod-form or tubular electrode.

2. The membrane-electrode assembly of claim 1, comprising a plurality of rod-form or tubular electrodes.

3. The membrane-electrode assembly of claim 1, wherein the wire-form counter electrode is spirally wound at a pitch of 1-10 mm.

6. The membrane-electrode assembly of any one of claims 1 to 5, wherein the rod-form or tubular electrode comprises diamond.

7. The membrane-electrode assembly of any one of claims 1 to 5, wherein the rod-form or tubular electrode is an anode and the counter electrode is a cathode.

8. An electrolytic cell which comprises:

the membrane-electrode assembly of any one of claims 1 to 5;

a feeder wire-fixing tube fitted to at least one of openings of the electrode chamber of the assembly; and

a feeder wire fixed between the opening and the feeder wire-fixing tube.

9. An electrolytic cell which comprises:

the membrane-electrode assembly of any one of claims 1 to 5; and

a tube for forming a tubular counter electrode chamber, the tube being disposed around the electrode chamber and the counter electrode.

10. The electrolytic cell of claim 8, which yields electrolytic water, the electrolytic water comprising ozonized water as a main component.

11. The electrolytic cell of claim 9, which yields electrolytic water, the electrolytic water comprising ozonized water as a main component.

12. An electrolytic-water sprayer which comprises:

the electrolytic cell of any one of claims 8 to 11;

a vessel containing raw water; and

a head,

wherein the raw water is electrolyzed with the electrolytic cell and the electrolytic water thus yielded is ejected from the head.

13. A method of sterilization with electrolytic water which comprises:

yielding electrolytic water with the electrolytic-water sprayer of claim 11; and

ejecting the resultant electrolytic water to a substance to be sterilized.

4. A membrane-electrode assembly which comprises:

at least one rod-form or tubular electrode;

a tubular diaphragm disposed around the periphery of the electrode; and

a porous counter electrode disposed around the periphery of the diaphragm,

the diaphragm being fixed to the rod-form or tubular electrode with the porous counter electrode to thereby form an electrode chamber having a gas/liquid passage between the diaphragm and the rod-form or tubular electrode.

5. A membrane-electrode assembly which comprises:

at least one rod-form or tubular electrode having a recessed part formed therein;

a tubular diaphragm disposed around the periphery of the electrode so as to form an electrode chamber having a gas/liquid passage between the diaphragm and the electrode; and

a platy counter electrode disposed around the periphery of the diaphragm.