Ozone generator with dual dielectric barrier discharge and methods for using same
First Claim
1. An ozone generator comprising:
- an elongated closed tubular cell including;
an inner wall an outer wall an annular region an annulus an interior a gas inlet and a gas outlet, an inner electrode adapted to be inserted into the annulus and position within the annular region so that the electrode is in contract with an inner surface of the inner wall of the cell, an outer electrode adapted to surround a portion of the annular region, and a power supply connected to the electrodes via electrical connections adapted to supply a periodic high voltage across the electrodes, where an oxygen-containing gas is designed to flow through the interior of the cell from the inlet and outlet and where a concentration of ozone can be varied
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Abstract
A new and novel ozone generator with a dual dielectric barrier discharge design is disclosed where high-purity ozone is generated and whose concentration can be varied over a wide range. The simplified design of the ozone generator cell possesses a gas inlet and outlet connected to an annular, sealed dielectric gas envelope that supports both inner and outer electrodes that do not come into contact with the gas. The design eliminates the need for gaskets, o-rings or other methods applied to seal the ozone cell and reduces problems associated with potential interaction resulting from material compatability issues. The applied high voltage is provided by a simple self-resonating, push-pull oscillating circuit whose efficiency is optimized through application of an appropriate impedance matching device. The ozone is concentration is adjusted by varying the pulse width duty cycle of the applied voltage and gas flow rate. The design configuration of the ozone generating cell also eliminates the need for forced air or liquid cooling by natural convective air currents and conductive means.
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13 Claims
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1. An ozone generator comprising:
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an elongated closed tubular cell including;
an inner wall an outer wall an annular region an annulus an interior a gas inlet and a gas outlet, an inner electrode adapted to be inserted into the annulus and position within the annular region so that the electrode is in contract with an inner surface of the inner wall of the cell, an outer electrode adapted to surround a portion of the annular region, and a power supply connected to the electrodes via electrical connections adapted to supply a periodic high voltage across the electrodes, where an oxygen-containing gas is designed to flow through the interior of the cell from the inlet and outlet and where a concentration of ozone can be varied - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification