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US 10,384,938 B2Granted
Ozone generator
AssigneeAqua21 Limited
InventorTrevor Franklin Costello
Life of this patent
Estimating the term…
Abstract
An ozone generator (1) is presented comprising a body (2), a first electrode (4), a second electrode (6), an elongate channel within the body extending between the first and second electrodes, an inlet (10) and an outlet (12); the elongate channel being in fluid communication with the inlet and the outlet; the elongate channel isolated from each of the first and second electrodes by a respective dielectric layer (22, 24), whereby an electric field can be generated across the elongate channel between the first and second electrodes. The presented ozone generator allows small quantities of ozone to be produced for use in small scale water treatment. In addition, a method of producing ozone is presented using an ozone generator according to the invention.
Claims23
An ozone generator comprising:
- a body;
- a first electrode;
- a second electrode;
- a third electrode, wherein the second electrode is located between the first electrode and the third electrode;
- an elongate channel within the body, a first portion of the elongate channel extending in a first direction between the first and second electrodes, a second portion of the elongate channel in fluid communication with the first portion of the elongate channel and extending in a second direction opposite the first direction and between the second and third electrodes, and a third portion of the elongate channel coupling the first portion of the elongate channel to the second portion of the elongate channel, the third portion of the elongate channel positioned between the first electrode and the third electrode and extending beyond the second electrode about an axis parallel to a width of the elongate channel in a third direction that is normal to the first direction and the second direction;
- and
- an inlet and an outlet,
- wherein the elongate channel is in fluid communication with the inlet and the outlet,
- wherein the elongate channel is isolated from either or both of the first and second electrodes by at least one dielectric layer such that a voltage when applied across the first electrode and the second electrode generates periodic electrical discharges across the first and second electrodes through the first portion of the elongate channel, wherein the elongate channel is isolated from either or both of the second and third electrodes by at least one additional dielectric layer such that the voltage when applied across the second electrode and the third electrode generates periodic electrical discharges across the second and the third electrodes through the second portion of the elongate channel, and
- wherein the first portion of the elongate channel extending between the first and second electrodes is configured to direct a gas along the elongate channel between the first and second electrodes in the first direction, and the second portion of the elongate channel extending between the second and third electrodes is configured to receive the gas after the gas passes through the first portion and the third portion of the elongate channel and to direct the gas along the elongate channel between the second and third electrodes in the second direction.
7 more elements
A stack of ozone generators comprising:
- a plurality of ozone generators, each of the ozone generators comprising:
- a body;
- a first electrode;
- a second electrode;
- a third electrode, wherein the second electrode is located between the first electrode and the third electrode;
- an elongate channel within the body, a first portion of the elongate channel extending in a first direction between the first and second electrodes, a second portion of the elongate channel in fluid communication with the first portion of the elongate channel and extending in a second direction opposite the first direction and between the second and third electrodes, and a third portion of the elongate channel coupling the first portion of the elongate channel to the second portion of the elongate channel, the third portion of the elongate channel positioned between the first electrode and the third electrode and extending beyond the second electrode about an axis parallel to a width of the elongate channel in a third direction that is normal to the first direction and the second direction;
- and
- an inlet and an outlet,
- wherein the elongate channel is in fluid communication with the inlet and the outlet,
- wherein the elongate channel is isolated from either or both of the first and second electrodes by at least one dielectric layer such that a voltage when applied across the first electrode and the second electrode generates periodic electrical discharges across the first and second electrodes through the first portion of the elongate channel, wherein the elongate channel is isolated from either or both of the second and third electrodes by at least one additional dielectric layer such that the voltage when applied across the second electrode and the third electrode generates periodic electrical discharges across the second and the third electrodes through the second portion of the elongate channel, and
- wherein the first portion of the elongate channel extending between the first and second electrodes is configured to direct a gas along the elongate channel between the first and second electrodes in the first direction, and the second portion of the elongate channel extending between the second and third electrodes is configured to receive the gas after the gas passes through the first portion and the third portion of the elongate channel to direct the gas along the elongate channel between the second and third electrodes in the second direction.
8 more elements
A method of producing ozone for use in sterilization comprising the steps of:
- providing an ozone generator comprising
- a body,
- a first electrode,
- a second electrode,
- a third electrode, wherein the second electrode is located between the first electrode and the third electrode,
- an elongate channel within the body, a first portion of the elongate channel extending in a first direction between the first and second electrodes, a second portion of the elongate channel in fluid communication with the first portion of the elongate channel and extending in a second direction opposite the first direction and between the second and third electrodes, and a third portion of the elongate channel coupling the first portion of the elongate channel to the second portion of the elongate channel, the third portion of the elongate channel positioned between the first electrode and the third electrode and extending beyond the second electrode about an axis parallel to a width of the elongate channel in a third direction that is normal to the first direction and the second direction, and
- an inlet and an outlet,
- wherein the elongate channel is in fluid communication with the inlet and the outlet,
- wherein the elongate channel is isolated from either or both of the first and second electrodes by at least one dielectric layer such that a voltage when applied across the first electrode and the second electrode generates periodic electrical discharges across the first and second electrodes through the first portion of the elongate channel, wherein the elongate channel is isolated from either or both of the second and third electrodes by at least one additional dielectric layer such that the voltage when applied across the second electrode and the third electrode generates periodic electrical discharges across the second and the third electrodes through the second portion of the elongate channel,
- wherein the first portion of the elongate channel extending between the first and second electrodes is configured to direct a gas along the elongate channel between the first and second electrodes in the first direction, and the second portion of the elongate channel extending between the second and third electrodes is configured to receive the gas after the gas passes through the first portion and the third portion of the elongate channel and to direct the gas along the elongate channel between the second and third electrodes in the second direction;
- introducing an oxygen containing gas into the inlet of the ozone generator such that the oxygen containing gas flows from the inlet to the outlet via the elongate channel;
- applying an electric field across the elongate channel sufficient to initiate the periodic electrical discharges across the elongate channel;
- wherein the periodic electrical discharges across the elongate channel interact with the oxygen within the oxygen containing gas such that ozone is produced;
- and
- at least some of the produced ozone flows out of the outlet.
12 more elements
Dependencies are inferred from the claim text.