Study and application of automatic control device for the flue gas temperature of utility boilers

This paper expounds the automatic control system principle of flue gas temperature of utility boiler,calculation method and results of coal-saving benefit,and introduces the application of“sequential control device of flue gas temperature of utility boiler”to control the flue gas temperature,inlet air temperature and cold end wall temperature of boiler in No.6boiler of Huangtai Power Plant ,with the expected target of the difference between the operation and the controlled cold end wall temperatures being±1℃achieved.