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Title: Prevention of low temperature corrosion

Abstract: An arrangement for inhibiting low temperature gas-side corrosion of an out of service steam generator and its heat exchange and gas clean-up adjuncts. The arrangement provides for circulating pressurized heated air through the steam generator and its adjuncts, controlling the pressurization of the air to maintain positive gas-side pressure, controlling the heating of the air to maintain gas-side surfaces above the dew point, and returning the air which has passed through the steam generator and its adjuncts to the forced draft fan to be repressurized, reheated and reintroduced into the steam generator.


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Inventors: Williams, Keith R. (North Canton, OH, US)

Application Number: 898280
Filing Date: 1978-04-20
Publication_date: 1980-01-08
Assignee: The Babcock & Wilcox Company (New York, NY)
Primary Class(es): 122/4R 110/204, 122/406.5
Other Classes:
US Patent Ref:
2159849May, 1939Graemiger110/106.
2744733May, 1956Howes122/1.
2762201Sep, 1956Sampson122/1.
3602164Aug, 1971Reintjes110/106.
4090455May, 1978McCartney110/106.

Other Refs: 694552
Sep, 1964CA

Primary Examiner: Sprague, Kenneth W.
Assistant Examiner:
Attorney: Maguire; J. M., Edwards; R. J.