Abstract:
In a closed ozone generator unit (2) oxygen gas is transformed into ozone gas by means of alternating current, the oxygen gas being substantially pressurized before entry into the unit (2). The unit is exposed to an external pressure substantially equal to or higher than the pressure of the oxygen gas.
Abstract:
There is provided a highly efficient and compact ozone generating apparatus in which a very short air gap (5) of about 0.2 mm is formed at high accuracy. Non-discharge portions are dispersed and disposed to cover an entire discharge space, or a spacer (61) is provided to form the non-discharge portion. Further, an elastic body is mounted on a back face of an electrode, thereby enhancing an air gap accuracy of the discharge space.
Abstract:
Gaseous ozone is formed by vaporising a stream of liquid oxygen in a heat exchange coil and passing it through an ozonator 34 in which it is subjected to a silent electrical discharge. The oxygen enters the ozonator 34 at a temperature below ambient. This sub-ambient temperature is created by evaporating liquid oxygen in the stream of oxygen in a chamber 24 upstream of the ozonator 34. Operating the ozonator 34 in such a way enhances the yield of ozone.
Abstract:
In a closed ozone generator unit (2) oxygen gas is transformed into ozone gas by means of alternating current, the oxygen gas being substantially pressurized before entry into the unit (2). The unit is exposed to an external pressure substantially equal to or higher than the pressure of the oxygen gas.
Abstract:
A method of generating ozone by supplying high-purity oxygen gas to a discharge type ozonizer while preventing a decrease in ozone concentration without adding nitrogen gas. The method comprises supplying high-purity oxygen gas from an oxygen gas source 2 to an ozonizer 1, wherein the high-purity oxygen gas to be fed to the ozonizer is passed through a humidifier 4 to humidify it. By this humidification, the content of water in the high-purity oxygen gas to be fed to the ozonizer 1 is regulated to 0.05 to 40 ppm.
Abstract:
The present invention relates to an apparatus (10) and method for producing ozone from a feed gas containing molecular oxygen by means of a corona discharge. The apparatus (10) and method comprise passing the feed gas (220) between two concentric tubes (20, 60) of a dielectric material. The inner tube (20) contains an electrode (30) with a plurality of windings of a conductive wire electrode around its inner surface (21) or a central rod inside its inner surface (21). The outer tube (60) has a plurality of windings (70) of a conducting wire electrode around its outer surface (62). Both electrodes are connected to a high voltage AC electric current device (280), whereby the current flowing between the electrodes (30, 70) through the dieletric tubes (20, 60) and the passing feed gas converts at least some of the molecular oxygen in the feed gas to ozone. This method and apparatus (10) for generating ozone have the advantages of being low cost, reliable, energy efficient, simple, compact, and easy to use and maintain.