| 摘要 |
Method for preventing the formation of superheated steam when the fuel heat to be released in the fluidised-bed combustion chamber exceeds the heat absorbing capacity of the evaporation circuit in heating surfaces, which bound the fluidised-bed space and/or dip into the fluidised bed, of a fluidised-bed firing system, operated under normal pressure or raised pressure, of a natural circulation steam generator. The enthalpy difference of the evaporation circuit is increased by feeding partially preheated feed water directly into the steam generating drum. |
