Heat recovery steam generator

Details Heat recovery steam generator Heat recovery steam generator

1983-04-22

1985-02-26

Favors, Edward G.

Liquid heaters and vaporizers

Circulation

With start-up operations

60 39182, 122 7R, 122406ST, 122420, F22D 700

Patent

active

045012334

ABSTRACT:
Heat recovery boiler equipment comprising high and low pressure boiler drums and high and low pressure evaporators is disclosed. A recirculation pipeline system is also disclosed in which a control device is provided to control the flow rate of recirculated feed water to maintain a temperature below which cold corrosion occurs. The recirculation of feed water allows for a shorter starting time during restart. Additionally, pressure can be held at a predetermined value to prevent corrosion due to the intrusion of air.

REFERENCES:
patent: 3150487 (1964-09-01), Mangan et al.
patent: 3508526 (1970-04-01), Michel
patent: 3769795 (1973-11-01), Rostrom
patent: 4205633 (1980-06-01), Wittchow
patent: 4207842 (1980-06-01), Kehlhofer

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