Abb Air Preheater Inc.

Paul J Batt

A multiple rake sootblower reciprocates over an area to clean an entire surface using a minimum of space for the sootblower stroke. An internal valving manifold and a plurality of bushings inside of a plenum isolate the rakes from each other and operate one rake at a time. This maintains the required sootblowing media pressure at the nozzles of each of the rakes. The internal valving manifold may either be reciprocated or rotated to select the desired rake.

Multiple rake sootblower with internal valving manifold

Adjoining heat exchange modules of a recuperative cross flow plate-type heat exchanger are joined into a single unit by means of common plate spacer bars. Each common spacer bar extends between and into the adjacent modules. The prior art mid-module gaps are eliminated.

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Wellsville, NY, United States of America

Paul J Batt