Superheater and Reheater Temperature Control in Boilers

The superheater temperature control can be done by many ways. Methods like desuperheating by water injection, flue gas flow diverting, burner tilting are few of the commonly adopted systems. In large capacity boilers the injection type desuperheating is adopted for superheater temperature control. Reheater in power boilers can also be technically classified as superheaters, however the type of control adopted is mainly varying the heat available from flue gas side by bypassing the flue gas to the superheater side (The Babcock design) and the burner tilt to vary the radiant heat availability (The Combustion Engineering design).