Regenerative air preheater operating method for use in power plant, involves controlling temperature and mass flow rate of air and/or flue gas, so that minimum temperature of hot sheets does not lie below predetermined minimum temperature

摘要

The method involves detecting temperature of air in an air inlet, and detecting temperature of a flue gas (RG) in a flue gas inlet. A mass flow rate of the flue gas in the flue gas inlet and/or the air in the air inlet is detected. A minimum temperature of hot sheets is determined depending on the temperature and the mass flow rate of the air and/or the flue gas. The temperature and the mass flow rate of the air and/or the flue gas are controlled, so that the minimum temperature of the hot sheets does not lie below a predetermined minimum temperature. Independent claims are also included for the following: (1) a control device for controlling an air preheater (2) a computer program for executing a method of operating an air preheater (3) a storage medium for storing a computer program (4) an air preheater comprising a rotor and a flue gas inlet.