Abstract: A housing for an electrostatic air cleaner is made adaptable to various sizes of cells by use of the same components. Top and bottom wall members are interconnected by telescoping corner members which can be contracted or expanded to vary the height of the housing as desired. The ends of the housing are closed by way of doors which are also expandable to varying lengths so as to accommodate various housing heights.

Abstract: A novel electrostatic precipitator includes an electrostatic collector section with discharge electrodes positioned between pairs of grounded collector electrodes, a gas entry port located upstream of said electrostatic collector section, and a transition section between the gas entry port and said electrostatic collector section into which an aqueous acid gas neutralizing agent is sprayed into a gas stream. An additional collector section may be interposed between the gas entry port and the point where the acid gas neutralizing agent is injected into the gas stream. The collector section may comprise alternating charging and short collection sections in which the grounded electrodes of adjoining charger and collector sections are connected. A liquid spray removes particulates collected on the grounded electrodes of the collector sections.

Abstract: An electrostatic precipitator has a plurality of arrays of spaced parallel dust-collecting electrodes, and at least one array of spaced parallel discharge electrodes, each array of discharge electrodes is arranged between an adjacent pair of arrays of dust-collecting electrodes. Each array of dust-collecting electrodes and each array of discharge electrodes are arranged such that the faces of the dust-collecting and discharge electrodes are parallel to each other, and parallel to the flow direction of a gas to be treated. The spacing between the dust-collecting electrodes of an array of dust-collecting electrodes, and the spacing between the discharge electrodes of an array of discharge electrodes may be sequentially narrowed from the upstream side of the electrostatic precipitator to the downstream side of the electrostatic precipitator.

Abstract: The present invention relates to an improved spacer assembly for use in an electrostatic precipitator. The electrostatic precipitator collects solid particles carried by a flue gas from a source of combustion. The precipitator includes a plurality of spaced parallel plates for collecting the above mentioned particles by electrostatic attraction of the particles to the plates. Each of the plates has a plurality of stiffeners extending outward from the respective plate. Each stiffener is opposite a like stiffener on the opposed plate. A plurality of spacer assemblies is positioned between opposed plates to hold the plates in a flat attitude and to maintain adjacent surfaces of opposed plates equidistantly spaced from one another. Each of the spacer assemblies includes a spacer having opposite ends abutting a pair of opposed parallel plates adjacent to the respective stiffeners of the plates. An upright is connected to the spacer.

Abstract: An electronic air cleaner includes a housing having a fluid inlet and a fluid outlet for creating a fluid stream through the housing. Inside the housing is provided a set of first parallel conductive plates and a set of second parallel conductive plates, herein the first and second plates ar interspersed in an alternating fashion. An ionizer is provided on each of the second plates, and a source of negative high voltage is connected to each of the first plates. Particulate matter can be removed from the air stream in a method using the above-described electrostatic air cleaner.