| 摘要 |
A multiple rake sootblower (38) reciprocates over an area to clean an entire surface using a minimum of space for the sootblower stroke. An internal valving manifold (52) and a plurality of bushings (70) inside of a plenum (50) isolate the rakes (40, 42, 44, 46) from each other and operate one rake (40, 42, 44, 46) at a time. This maintains the required sootblowing media pressure at the nozzles (68) of each of the rakes (40, 42, 44, 46). The internal valving manifold (52) may either be reciprocated or rotated to select the desired rake (40, 42, 44, 46).
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