Reheater protection in a circulating fluidized bed steam generat

Details Reheater protection in a circulating fluidized bed steam generat Reheater protection in a circulating fluidized bed steam generat

1993-12-27

1995-08-22

Lazarus, Ira S.

Power plants

Motive fluid energized by externally applied heat

Process of power production or system operation

60653, 60658, 60663, 60679, F01K 724

Patent

active

054429196

ABSTRACT:
The final reheater in a circulating fluidized bed combustion system which is located in a separate fluidized bed heat exchanger and which would be subjected to hot solids without any cooling after a blackout or turbine is cooled by bleeding a portion of the steam from the superheater outlet through a normally closed high pressure drop valve and into the final reheater. A valve downstream from the final reheater is also opened to permit flow.

REFERENCES:
patent: 2579027 (1951-12-01), Walter et al.
patent: 2884760 (1959-05-01), Buri
patent: 4455836 (1984-06-01), Binstock et al.
patent: 4576008 (1986-03-01), Silvestri, Jr.
patent: 4748940 (1988-06-01), Honig
patent: 4779574 (1988-10-01), Nilsson et al.
patent: 5273000 (1993-12-01), Regan

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