Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1990-12-04
1991-11-12
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15317, 122390, 165 95, F23J 300
Patent
active
050636324
ABSTRACT:
A sootblower for the cleaning of internal surfaces of large scale boilers which are subject to the accumulation of soot or slag encrustations. In instances where a sootblower is used to project the jet of steam of steam or a steam/air mixture, between actuation cycles, condensate can form in the sootblower or the associated piping. At the beginning of an actuation cycle the condensate is ejected from the sootblower. If the condensate impinges against the heat transfer surfaces inside the boiler it can cause damage to these surfaces through excessive thermal and mechanical shock. In accordance with this invention the sootblower is provided with a nozzle block assembly incorporating a condensate separator which causes condensate to be ejected by the lance tube away from impact with the heat transfer surfaces where it can be safely dissipated from the boiler without causing damage to the heat transfer surfaces which are cleaned using a substantially fully vaporous pure spray of sootblowing medium.
REFERENCES:
patent: 1809221 (1931-06-01), Snow et al.
patent: 2904260 (1959-09-01), Schueler et al.
patent: 3436786 (1969-04-01), Rickard et al.
patent: 3593691 (1971-07-01), Wirths et al.
patent: 4209028 (1980-06-01), Shenker
patent: 4351277 (1982-09-01), Ryan et al.
patent: 4380843 (1983-04-01), Sullivan et al.
Clark John E.
Shenker Jack D.
Moore Chris K.
The Babcock & Wilcox Company
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