Evaluation of Steam Washers in Power-Plant Boilers

[+] Author and Article Information
H. A. Klein

Combustion Engineering Inc., Kreisinger Development Laboratory, Chattanooga, Tenn.

J. Eng. Power 83(4), 343-350 (Oct 01, 1961) (8 pages) doi:10.1115/1.3673204 History: Received August 24, 1960; Online January 10, 2012


A research program was undertaken to study the feasibility of employing steam washers to control silica deposition in high-pressure turbines. Under certain laboratory conditions, steam washing was found to be effective; however, its useful application appears to be limited to a very small number of power stations. Space limitations in modern boiler drums make it difficult to install the bulky equipment without interfering with flow and distribution through the drum. A washer installation can actually be the cause of mechanical carry-over. The use of high-quality make-up water and the prevention of raw-water contamination provide a more economical and trouble-free solution to the silica problem. A steam washer has little practical value in plants where good external control of silica is practiced.

Copyright © 1961 by ASME
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