Control system for corona discharge ozone generating unit

Claim 2

In an ozone generating system including a corona discharge ozone generating unit for ozonizing an oxygen containing gas, the ozonized gas rapidly dissociating at temperatures above a given value, the ozone generating unit including at least one pair of electrodes to be connected to the terminals of a high voltage source and a heat damageable dielectric tube between said electrodes, a source of ozone producing high voltage to be operably connected to said electrodes and means for circulating the oxygen containing gas to be ozonized through said corona discharge generating unit, the improvement in means for controlling the operation of the ozone generating system, said means comprising temperature responsive means responsive to the temperature of the ozonized gas, and control means responsive to said temperature responsive means for interrupting the coupling of said ozone producing higH voltage to said electrodes of the ozone generating unit when the temperature of the ozonized gas reaches a level below the temperature at which said ozonized gas rapidly dissociates, the circulation of the gas to be ozonized through said unit continuing during said interruption of the high voltage.

Claim 3

The ozone generating system of claim 1 wherein said control means interrupts the coupling of said ozone producing high voltage to said electrodes of said ozone generating unit when the temperature of the ozonized gas reaches a level of at least about 90*F.

Claim 4

The ozone generating system of claim 1 wherein said control means includes a proportional controller with means for setting a temperature at which the controller alternately establishes and interrupts the presence of said ozone producing high voltage across said electrodes.

Claim 5

The ozone generating system of claim 1 wherein there is provided means for cooling the gas to be ozonized to aid in preventing the build-up of dielectric shield damaging temperatures in the ozone generating unit and the temperature at which the ozonized gas rapidly dissociates.

Claim 6

The ozone generating system of claim 1 wherein there is provided gas flow rate responsive means and means for preventing the coupling of high voltage to said electrodes of the ozone generating unit until the flow rate reaches a given value.

Claim 7

The ozone generating system of claim 5 wherein there is provided a vortex tube unit for receiving gas to be ozonized at a first inlet and separating the high energy gas molecules from the low energy gas molecules therein and delivering the resultant relatively cool gas molecules to a cool gas outlet thereof and the relatively warm gas molecules to a warm gas outlet thereof, said cool gas outlet being connected to the inlet of the ozone generating unit, said vortex tube unit requiring gas of at least a given pressure to be operable and there is provided pressure responsive means responsive to the pressure of the gas to be ozonized being fed to the inlet of said vortex tube unit and means for preventing the coupling of high voltage to said electrodes of the ozone generating unit until the pressure reaches said given pressure.

Claim 8

An ozone generating system including a corona discharge ozone generating unit for ozonizing an oxygen containing gas, the ozonized gas rapidly dissociating at temperatures above a given value, the ozone generating unit including at least one pair of electrodes to be connected to the terminals of a high voltage source and a heat damageable dielectric tube between said electrodes, a source of ozone producing high voltage to be operably connected to said electrodes and means for circulating the oxygen containing gas to be ozonized through said corona discharge generating unit, drying means for drying the gas to be ozonized, and control means for first automatically initiating operation of said circulating and drying means a given predetermined period prior to the coupling of said ozone producing high voltage to said electrodes of the ozone generating unit and then to couple said ozone producing high voltage to said electrodes of the ozone generating unit in order to substantially insure the drying out of the ozone generating unit before the high voltage is fed thereto.

Claim 9

An ozone generating system including a corona discharge ozone generating unit for ozonizing an oxygen containing gas, the ozonized gas rapidly dissociating at temperatures above a given value, the ozone generating unit including at least one pair of electrodes to be connected to the terminals of a high voltage source and a heat damageable dielectric tube between said electrodes, a source of ozone producing high voltage to be operably connected to said electrodes and means for circulating the oxygen containing gas to be ozonized through said corona discharge generating unit, drying means for drying the gas to be ozonized, and control means for first automatically initiating operation of said circulating and drying means a given predetermined period prior to the coupling of said ozone producing high voltage to said electrodes of the ozone generating unit and then to couple said ozone producing high voltage to said electrodes of the ozone generating unit in order to substantially insure the drying out of the ozone generating unit before the high voltage is fed thereto.

Claim 10

The ozone generating system of claim 7 wherein there is provided timer controlled means for terminating the coupling of said high voltage to said electrodes of the ozone generating unit a given period prior to termination of the operation of said circulating means to prevent overheating of the ozone generating unit and retention of ozone in the unit.

Claim 11

An ozone generating system including a corona discharge ozone generating unit for ozonizing an oxygen containing gas, the ozonized gas rapidly dissociating at temperatures above a given value, the ozone generating unit including at least one pair of electrodes to be connected to the terminals of a high voltage source and a heat damageable dielectric Tube between said electrodes, a source of ozone producing high voltage to be operably connected to said electrodes and means for circulating the oxygen containing gas to be ozonized through said corona discharge generating unit, and timer controlled means for terminating the coupling of said high voltage to said electrodes of the ozone generating unit a given period prior to termination of the operation of said circulating means to prevent overheating of the ozone generating unit and retention of ozone in the unit.

Claim 12

An ozone generating system including a corona discharge ozone generating unit for ozonizing an oxygen containing gas, the ozonized gas rapidly dissociating at temperatures above a given value, the ozone generating unit including at least one pair of electrodes to be connected to the terminals of a high voltage source and a heat damageable dielectric Tube between said electrodes, a source of ozone producing high voltage to be operably connected to said electrodes and means for circulating the oxygen containing gas to be ozonized through said corona discharge generating unit, and timer controlled means for terminating the coupling of said high voltage to said electrodes of the ozone generating unit a given period prior to termination of the operation of said circulating means to prevent overheating of the ozone generating unit and retention of ozone in the unit.

Claim 13

The ozone generating system of claim 9 wherein there is provided timer controlled means for automatically initiating the coupling of said high voltage to said electrodes of the ozone generating unit a given period after initiation of operation of said circulating means.

Claim 14

In an ozone generating system including a corona discharge ozone generating unit for ozonizing an oxygen containing gas, the ozonized gas rapidly dissociating at temperatures above a given value, the ozone generating unit including at least one pair of electrodes to be connected to the terminals of a high voltage source and a heat damageable dielectric tube between said electrodes, a source of ozone producing high voltage to be operably connected to said electrodes and means for circulating the oxygen containing gas to be ozonized through said corona discharge generating unit, the improvement coupling a vortex tube unit for receiving gas to be ozonized at a first inlet and separating the high energy gas molecules from the low energy gas molecules therein and delivering the resultant relatively cool gas molecules to a cool gas outlet thereof and the relatively warm gas molecules to a warm gas outlet thereof, said cool gas outlet being connected to the inlet of the ozone generating unit, said vortex tube unit requiring gas of at least a given pressure to be operable, and there is provided pressure responsive means responsive to the pressure of the gas to be ozonized being fed to the inlet of said vortex tube unit, and means for preventing the coupling of said ozone producing high voltage to said electrodes of the ozone generating unit until the pressure reaches said given pressure.

Claim 15

In an ozone generating system including a corona discharge ozone generating unit for ozonizing an oxygen containing gas, the ozonized gas rapidly dissociating at temperatures above a given value, the ozone generating unit including at least one pair of electrodes to be connected to the terminals of a high voltage source and a heat damageable dielectric tube between said electrodes, a source of ozone producing high voltage to be operably connected to said electrodes and means for circulating the oxygen containing gas to be ozonized through said corona discharge generating unit, the improvement coupling a vortex tube unit for receiving gas to be ozonized at a first inlet and separating the high energy gas molecules from the low energy gas molecules therein and delivering the resultant relatively cool gas molecules to a cool gas outlet thereof and the relatively warm gas molecules to a warm gas outlet thereof, said cool gas outlet being connected to the inlet of the ozone generating unit, said vortex tube unit requiring gas of at least a given pressure to be operable, and there is provided pressure responsive means responsive to the pressure of the gas to be ozonized being fed to the inlet of said vortex tube unit, and means for preventing the coupling of said ozone producing high voltage to said electrodes of the ozone generating unit until the pressure reaches said given pressure.