LCC20 118: Propulsion Boiler Flashcards
Boiler
converts chemical energy into thermal. 600Lb āDā type in fire room manufactured by Foster Wheeler
Super Heater
1 per boiler. Raises temp of saturated steam to 875 degrees at 630 PSI
De-superheater
Lowers temp of super-heated steam to 560 degrees at 600 PSI. located in the steam drum.
De-airating Feed Tank
Removes dissolved oxygen
Preheat the condensate
Stores feed watrer
Main Feed Pump
3 of them. pumps feed water to the boilers. at 265 GPM between 600-825 PSI
Main feed booster pump
pumps water from DFT to the Main Feed Pump
Economizer
1 per boiler. preheats feed water to 250-370 degrees before is enters the steam drum
Forced Draft Blowers
Delivers air to the boilers for combustion. Motor driven