Corona generator
First Claim
1. In a corona generator including a pair of spaced-apart, adjacent electrodes defining a corona discharge chamber between facing interior surfaces of said electrodes, the improvement wherein at least one of said electrodes has a metal electrode substrate having a thin, hard, fired-on coating of porcelain enamel having a thickness of less than 20 mils and being fired onto an interior surface thereof at a temperature sufficiently high to bond said porcelain enamel coating onto said surface of said electrode.
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Accused Products
Abstract
A corona generator method and apparatus preferably for generating ozone, employing a plurality of corona generating cells each comprising a pair of parallel spaced-apart electrodes having a fired-on coating of porcelain enamel. The electrodes are connected to an AC voltage source of sufficient voltage to generate a corona discharge, and an oxygen-containing gas is passed between the electrodes to generate ozone. A high concentration ozone is produced as well as a large quantity of ozone, without water cooling, and at voltages of approximately 6,000 volts. An equation setting forth, for the first time, the interrelationships between the various parameters in a corona generator is derived by Applicant. According to the invention, the corona power is maximized by maximizing the expression ε/Td, where epsilon is the dielectric constant of the porcelain enamel coating and Td is the dielectric thickness.
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Citations
22 Claims
- 1. In a corona generator including a pair of spaced-apart, adjacent electrodes defining a corona discharge chamber between facing interior surfaces of said electrodes, the improvement wherein at least one of said electrodes has a metal electrode substrate having a thin, hard, fired-on coating of porcelain enamel having a thickness of less than 20 mils and being fired onto an interior surface thereof at a temperature sufficiently high to bond said porcelain enamel coating onto said surface of said electrode.
Specification