Abstract:
A cooling system for the high voltage electrode of a corona treater includes an elongated hose disposed within the dielectric tube and around which the high voltage wire is spirally wound. The elongated hose is connected to a first port through which cooling fluid is introduced. The cooling fluid flows through the hose and out an open end into the dielectric tube. The cooling fluid then flows out of the dielectric tube through a second port and back to a reservoir after passing through a high voltage isolator.
Abstract:
A system and method for generating high concentration ozone by introducing a high purity oxygen (99.995% or greater purity) into a silent discharge type ozone generator. Another high purity gas (99.99% or greater), is mixed with the oxygen before the gas is introduced into the ozone generator. By this process, high concentration ozone is generated such that the ozone concentration does not decrease with time. The highest ozone concentrations are maintained when the non-oxygen gas makes up between 1% and 10% of the volume content of the gas mixture introduced in the ozone generator.
Abstract:
A durable, efficient and relatively inexpensively manufactured ozonator is provided, which operates on the corona discharge principle and can be utilized to produce about 0.5 to about 2.25 kg of ozone per day at a favorable overall cost. A corona discharge ozonator embodiment includes an inner and outer electrode in a concentric relationship. At least one, preferably both, of the electrodes has a multi-layered porcelain coating bonded by individually applied and fired layers and with a total thickness of between 0.5 mm to 1.0 mm.
Abstract:
An ozone generator of simplified construction comprising a tubular first metallic electrode surrounded by a concentric tubular dielectric member having on its outer surface a second metallic electrode, the dielectric member being longer than the first electrode, and identical end members for slidably receiving and mounting the first electrode and the dielectric member to form an ozone generator, whereby compressive forces are borne by the first metallic electrode.
Abstract:
A concentric-tube type ozone generator wherein the lower end portion of the interior of the tube contains a supply of oil which contacts the inner side of the inner tube wall above the inner electrode to prevent the flow of creep currents between the inner and outer electrodes. A second supply of oil can be confined in the upper end portion of the inner tube wall above the inner electrode. The inner electrode may consist of a metallic foil which is biased against the inner side of the inner tube wall by a helical spring. The outer electrode may constitute a helically convoluted metallic wire. Two or more tubes can be mounted above each other with the outlet at the lower end of the upper tube in communication with the inlet at the upper end of the lower tube.
Abstract:
An ozone generator having a housing accommodating parallel mounted ozonizing elements, each consisting of water-cooled inner and outer electrodes mounted coaxially with a constant gap through which passes the gas to be treated and in which an electric discharge is initiated. Located between the ozonizing elements along their axes are cooling chambers communicating with the gaps of the adjacent ozonizing elements. The inlet and outlet devices for passing the gas to be treated are so arranged in the housing that the gas passes through the ozonizing elements in a direction across their axes.
Abstract:
An improved ozone generator formed from two groups of spaced, interleaved, relatively small reactor plates in a housing. Each of the plates is cooled by a coolant passing through the interior thereof. The coolant is a refrigerant flowing through a refrigeration system for which the plates define the evaporator. Each plate has a ceramic outer coating which provides a dielectric therefor and protects the plate from corrosion. Improved support means for each group of plates includes a pair of tubular mounts formed from fittings which convey the refrigerant to internal passages in the plates, provide the electrical connections thereto, and permit the plates to be coupled together as a modular unit so that the plates can be leak-tested before being placed in the housing. Improved fluid distribution means is provided at the inlet and outlet ends of the housing to assure uniform flow of air into the housing and uniform flow of air and ozone out of the housing.
Abstract:
An ozone generator module of the electirc discharge field type is provided having at least one cell comprising an assembly of three concentric tubular members, the inner and outer tubular members being electrodes separated by a tubular dielectric member spaced from one of the electrodes a distance sufficient to define a high density electric discharge zone between them, the cell or cells being disposed within a liquid container. Substantially optimum conditions for the production of ozone are provided by making the cross sectional dimension of the field uniform throughout to within a very small range of tolerance and by controlling the temperature of the electrodes by cooling them with liquid coolants one of which is a dielectric liquid, and limiting the density of the field by regulating the voltage across the field and the frequency employed.
Abstract:
A periodically reversed gas flow method and apparatus for ozone production is described. Because moisture reduces the efficiency of most ozonizers, moisture is removed from an oxygen containing fluid before it passes through the ozonizer and the moisture is returned to the oxygen and ozone containing fluid after the ozonizer. At least two moisture adsorbent material columns are used so that the oxygen containing fluid is first passed serially through the two columns with the ozonizer interposed and then periodically reversed to pass serially through the three components in the opposite direction so that at least one column is always in an adsorbent cycle while at least another column is always in a desorber cycle. The pressure of the oxygen containing fluid may be increased immediately upstream of the adsorber column and reduced immediately downstream of the adsorber column, for increased efficiency. The heat of adsorption is transferred from the adsorber column to the desorber column to provide the heat of desorption at the latter column, with the ozonizer serially interposed; the coolant fluid flow is preferably cocurrent to the oxygen fluid flow and reversed everytime that the oxygen containing fluid flow is reversed.
Abstract:
Tubular ozonizer substantially comprising an oxygen chamber, an ozone chamber, a discharge chamber and a coolant container surrounding the discharge chamber bounded by two metal electrodes, which are concentrically telescoped one into the other, have an open upper end and a closed lower end, and have an associated dielectrical tube arranged therebetween so as to leave two discharge spaces. The partition plate between the ozone chamber and oxygen chamber is formed with a bore into which the dielectrical tube is telescoped so as to be radially spaced therefrom, and a packing ring is provided in the annular gap left between the dielectrical tube and the wall of the bore in the partition wall, the packing ring having a centering ring mounted thereon to provide support for the upper flanged edge of the tensionally held, inner electrode.