Abstract:
An electric dust-collection unit including needle electrodes for the purpose of charging particulates within the air by causing corona discharges around their tips, collector cells (collector electrodes) arranged in tubular shape corresponding to the needle electrodes for the purpose of attracting and collecting the charged particulates by static electricity, and deflecting electrodes which are arranged in such a way as to be inserted within the collector cells for the purpose of imparting a deflecting force on the charged particles in the direction of the collector cells. The deflecting electrodes being configured in the form of a hollow column including a forward plate section having a mounting hole for the purpose of fitting and retaining the needle electrode, and side plate sections facing the collector cell at a prescribed distance. While the needle electrodes are fixed on to the forward plate sections of the deflecting electrodes in such a way that their tips protrude from the surface of the forward plate sections, while their bodies are inserted firmly in the mounting hole.
Abstract:
A pair of wire electrodes in an electrostatic precipitator is replaced by a single rigid discharge electrode. Shrouds on the upper end of the rigid discharge electrode cooperate with the original supporting and locating means on the upper high voltage frame to suspend the rigid discharge electrode midway between the vertical grounded electrodes. Suspending means on the lower end of the rigid discharge electrode provide for suspending the weights originally suspended from the bottoms of the wire electrodes from the rigid discharge electrode in their original positions.
Abstract:
An electrostatic precipitator comprising a plurality of flat plate dust-collecting electrodes, arranged in substantially equally spaced and parallel relationship with one another and each having a discharge electrode, or electrodes, on and along the edge of one side thereof with the discharge electrodes of the adjacent dust-collecting electrodes alternately facing in opposite directions; the edges having the discharge electrodes are arranged in a setback relation by some distance in relation to the nearby edges of the adjacent dust-collecting plates, where no discharge electrodes are provided, so that uniform and non-uniform electric fields may be produced.
Abstract:
A discharge electrode is disclosed for producing ion emission in an electrostatic precipitator. The electrode includes a rigid cylindrical tubular member having a plurality of protrusions extending outwardly therefrom. The protrusions preferably have rounded free end portions and are formed either by individual rods integrally attached to the member or by one or more wires attached to the surface of the member and having folds which are selectively spaced apart to provide the desired dispersion of the ion emission. The wires may also be embedded in depressions defined in the surface of the member. The invention also pertains to an improved electrostatic precipitator incorporating the inventive discharge electrode.
Abstract:
An electrostatic precipitator with at least one pair of spaced, flat-plate grounded dust collecting electrodes and a floating, insulated dust collecting flat-plate electrode arranged in the center of each space between the grounded dust collecting electrodes parallel to the gas flow and provided at its edges at fixed intervals with sets of needle-shaped discharge electrodes.The needles are fabricated along an outer longitudinal edge of a channel bracket member by welding or the like at precise equal spacings. Plural bracket members are riveted along the respective leading and trailing edges of each floating flat electrode plate in such a fashion that the tips of the needles are aligned vertically in the precipitator chamber. The diameter of the needle-shaped discharge electrodes is smaller than approximately 5 mm and the tips of the needle-shaped electrodes have a maximum radius of approximately 0.5 mm while the intervals between the needle-shaped discharge electrodes is smaller than the distance between the grounded dust collecting electrodes and the floating dust collecting electrodes.
Abstract:
A pair of .omega.-section metallic channels are juxtaposed to form a hollow core with their flat flanges coextensively contacting one another. This core is advanced in steps having a length equal to an even multiple of the predetermined distance toward a work station. Strips are pulled off a pair of supplies at this station and the ends of these strips are advanced toward locations on the core which are spaced apart by the predetermined distance. These strips are advanced by an increment on each step advance of the core. The ends of the strips are spot welded to the flanges on the respective side of the core and the end sections are cut between incremental advances of the strips and step advances of the core to leave a pair of strip arms welded to the core and spaced longitudinally apart by the predetermined distance. The free end of each arm is formed with a split and these split ends are bent in opposite directions to opposite sides of the split. The operations of cutting off the end section and splitting the ends can be carried out simultaneously by a single stamping arrangement. The core is held between upper and lower rollers as it is advanced straightly longitudinally toward the station where the arms are applied thereto.
Abstract:
A tube-type electrostatic precipitator in which the interior of a tube is provided with a film of conductive liquid to which the particles are attracted and which surrounds a corona discharge electrode. The outside of the tube is provided with fiberglassreinforced synthetic-resin bands while the interior of the tube is sandblasted or otherwise roughened to a minimum roughness of 15 microns.
Abstract:
DISCHARGE ELECTRODE ASSEMBLIES ELECTRICAL PRECIPITATORS HAVING EXTENDED SURFACE COLLECTING ELECTRODES COMPRISE ELONGATE METALLIC RIBBONS DISPOSED WITH THE EDGES OF THE RIBBONS HAVING SUBSTANTIALLY PARALLEL PATHS IN PLANES PARALLEL TO AND SPACED FROM THE ASSOCIATED COLLECTING ELECTRODE FACES AND SUPPORT MEMBERS MAINTAINING THE RIBBONS RIGIDLY IN SUCH POSITION. IN PREFERRED ARRANGEMENTS THE METALLIC RIBBONS ARE BENT INTO AT LEAST PARTIALLY CURVILINEAR SHAPE.