Prevention of low temperature corrosion

Details Prevention of low temperature corrosion Prevention of low temperature corrosion

1978-04-20

1980-01-08

Sprague, Kenneth W.

Liquid heaters and vaporizers

Miscellaneous

122406ST, 110204, F22B 100

Patent

active

041822749

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.

REFERENCES:
patent: 2159849 (1939-05-01), Graemiger
patent: 2744733 (1956-05-01), Howes
patent: 2762201 (1956-09-01), Sampson
patent: 3602164 (1971-08-01), Reintjes
patent: 4090455 (1978-05-01), McCartney

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