Electrolytic cell having nonporous partition

• US 4,493,760 A
• Filed: 12/07/1983
• Issued: 01/15/1985
• Est. Priority Date: 12/23/1982
• Status: Expired due to Fees

• Current Assignee: Industrie Zanussi S.P.A.
• Original Assignee: Industrie Zanussi S.P.A.
• Inventors: Bianchi, Giuseppe
• Primary Examiner(s): Andrews, R. L.
• Assistant Examiner(s): NOT, DEFINED
• Application Number:
  US06/559,025
• Time in Patent Office: 405 Days
• Field of Search: 204/128, 204/133, 204/278, 204/275
• US Class Current: 204/278
• CPC Class Codes: A47L 15/4229 Water softening arrangements
• CPC Class Codes: C02F 1/46104 Devices therefor; Their operating or servicing
• CPC Class Codes: C02F 1/46109 Electrodes
• CPC Class Codes: C02F 1/4674 with halogen or compound of halogens, e.g. chlorine, bromine
• CPC Class Codes: C25B 9/17 Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof

Abstract

An electrolytic cell for the production of chlorine gas by the electrolysis of a sodium chloride solution includes a cell body having therein a cathode compartment having a cathode electrode for the formation of hydrogen gas during electrolysis and an anode compartment having an anode electrode for the formation of chlorine gas during electrolysis. Apertures or conduits are provided for charging sodium chloride solution into the compartments, for discharging hydrogen and chlorine gases from the compartments, and for discharging from the compartments solutions resulting from the electrolysis operation. A nonporous wall provides for physical and electrolytic communication between the bottoms of the compartments, while preventing physical and electrolytic communication between the compartments above the bottoms thereof.

Claims

1. An electrolytic cell for the production of chlorine gas by the electrolysis of a sodium chloride solution, particularly for the formation of chlorine water in a washing machine or a dishwasher, said cell comprising:

a cell body including therein a cathode compartment having a cathode electrode for the formation of hydrogen gas during electrolysis and an anode compartment having an anode electrode for the formation of chlorine gas during electrolysis;

means for charging sodium chloride solution into said compartments;

means for discharging hydrogen and chlorine gas from said compartments;

means for discharging from sid compartments solutions resulting from electrolysis;

means for providing physical and electrolytic communication between the bottoms of said compartments while preventing physical and elecrolytic communication above said bottoms, said providing and preventing means comprising a nonporous partition; and

said electrodes extending in generally horizontal planes in the respective said compartments at levels above a lower end of said partition.

2. A cell as claimed in claim 1, wherein said gas discharging means comprises conduits extending from upper portions of said compartments.

3. A cell as claimed in claim 2, further comprising means for mixing the gases from said conduits and for supplying the thus mixed gases to an in-water absorption tower for absorbing the chlorine gas in water, thereby forming chlorine water.

4. A cell as claimed in claim 1, wherein said charging means comprises an aperture in the top of said cell body and opening into at least one of said compartments.

5. A cell as claimed in claim 1, wherein said solution discharging means comprises a conduit leading from the bottom of said cell body.

6. A cell as claimed in claim 5, wherein said partition comprises a nonporous wall extending from the top of said cell body downwardly to a position spaced from said conduit in said bottom of said cell body, electrolytic communication between said compartments being beneath said nonporous wall.

7. A cell as claimed in claim 6, further comprising a sump in said bottom of said cell body, said lower end of said nonporous wall being directed toward said sump, and said solution discharging conduit extending from said sump, whereby said sump collects the more dense solution from said cathode compartment, and said nonporous wall prevents the less dense solution from said anode compartment from passing into said cathode compartment.