Abstract:
An ozone generator of the corona discharge type having a housing which is dimensioned to fit into one of a male end and female end of an air duct of a building and a glass tube of a radius substantially less than a width of the housing. An electrically conductive inner mesh is fitted over an interior surface of the glass tube and an electrically conductive outer mesh is fitted over an exterior surface of the glass tube. The ozone generator also has means for generating a high electric potential difference across the electrically conductive meshes.
Abstract:
A device for generating ozone from oxygen-containing gases by a silent discharge includes an arrangement with at least one gap through which the gas flows. The arrangement includes an electrode and a dielectric that separates the gap from another electrode. The gap is filled up with an electrically and thermally conductive gas-permeable arrangement that is in electrical and thermal contact with the adjacent electrode and that the oxygen-containing gas flows through. The gas-permeable arrangement includes a multiplicity of discharge spaces wherein the oxygen-containing gas is exposed to a high field strength and converted into ozone, and the reaction heat occurring in the gap is dissipated to the adjacent electrode by the electrically and thermally conductive gas-permeable arrangement.
Abstract:
A process and reactor for chemical conversion is taught. The process allows the selective breaking of chemical bonds in a molecule by use of fast rise alternating current or fast rise pulsed direct current, each fast rise portion being selected to have a suitable voltage and frequency to break a selected chemical bond in a molecule. The reactor for carrying out such a process includes a chamber for containing the molecule and a generator for generating and applying the selected fast rise current.
Abstract:
A generator is taught which uses alternating current or pulsating direct current to produce ozone from oxygen. The generator comprises a high voltage and ground electrode separated to form a gap for accommodating a dielectric member and gas to be reacted. The generator includes many features which may be used alone or in combination to provide an energy efficient and safe apparatus.
Abstract:
A rugged, flexible unit for generating a corona discharge includes a conductive central wire, flexible dielectric material, and a flexible conductive layer surrounding said dielectric material. The dielectric material may be advantageously formed of PTFE. The flexible unit may be conveniently cut from a long length of prefabricated insulated wire. In operation, an alternating current is supplied to the central wire and the outer conductive layer is grounded, such that a corona discharge is efficiently generated within and around interstices formed by the outer layer. The corona discharge may be used to ozonate oxygen-rich gas.
Abstract:
Ozone is generated from an oxygen-containing gas utilizing a tube-type ozone generator at significantly greater power efficiency. The oxygen is introduced into the annular passageway between the electrodes of the tube-type ozone generator at an angle (e.g. about 45.degree.-90.degree.) so that it swirls in a cyclonic flow path as it travels from one end of the annular passageway to the other. The amount of power consumed to produce a gas having about 8% ozone is roughly half of the power needed if the same conditions are applied but the oxygen gas is introduced conventionally (without swirling action, so that it travels along the dimension of elongation of the passageway). The swirling action also allows a higher concentration of ozone (e.g. 10% or more) to be achieved in the product gas compared to the same conditions when no swirling is employed. Cooling fluid, such as nitrogen gas, may be passed through an interior passageway and outside the outer electrode either co-current or countercurrent to the general direction of oxygen gas flow.
Abstract:
A method is disclosed of improving the output of ozone, as well as operating functions of a silent-discharge-type-ozonizer, by pre-conditioning oxygen as a feed gas prior to its introduction in and through the ozonizer.
Abstract:
Apparatus for the formation of excited or unstable gaseous molecules, comprising a tubular gas passage (5) having an axis, formed between a first electrode (1) and a dielectric tube (3) coaxial to the first electrode and supporting a second electrode (4), the electrodes being connected to a high voltage high frequency source (13). The first electrode (1) surrounds the dielectric tube (3) and comprises an elongated gas inlet (7) and outlet (8) parallel to the axis and diametrically opposed to each other on opposite sides of the dielectric tube (3). The second electrode (4) is a layer of metal applied to the internal wall of the dielectric tube (3). The second electrode (4)is formed by metallization of the internal wall of the dielectric tube (3). The gas inlet (7) and outlet (8) have a height not exceeding the radial thickness (e) of the gas passage (5). The external wall of the dielectric tube is covered with a thin layer (21) of enamel. A refrigerant such as Freon circulates within the dielectric tube (3) and the second electrode (4). Used for the production of ozone, to supply a mixed CO.sub.2 laser, or for the production of atmospheres for nitriding metal, or for the production of reducing atmospheres.
Abstract:
An ozone generator (10) has top and bottom chambers (12, 14) interconnected by a vertically extending elongated tubular assembly (16). Assembly (16) has a control electrode (18) within a conductive tube member (20) and separated therefrom by an annular dielectric member (22) which only partly fills the space between items (18, 20). The dielectric member (22) is suspended by an O-ring at its upper end within the top chamber (12) and is free from contact with both the electrode (18) and the tube member (20). Gas flow between the top and bottom chambers (12, 14) is along radially inner and outer annular passageways within the assembly (16) and the top chamber (12) is partitioned into two chambers which respectively communicate with these passageways. The generator (10) may have a plurality of similar assemblies (16) extending in parallel between common top and bottom chambers (12, 14).
Abstract:
A non-perforated metal tube with open opposite ends extends coaxially around a plasma discharge tube that projects beyond both ends of the metal tube. The plasma tube contains an ionizable gas and an electrode. The ends of both tubes engage two end cap assemblies which maintain the tubes in a coaxial, uniformly spaced relationship. Both end cap assemblies have a tubular coupling that fits around a flared end of the metal tube and have a mechanism for supporting the glass tube. Passages are provided in the end cap assemblies for gas to enter and exit. A plasma is established in the plasma discharge tube by applying an excitation potential between the electrode and the metal tube.