METHOD FOR ENHANCING THE EFFICIENCY OF AN INCINERATION PLANT, IN PARTICULAR OF A WASTE INCINERATION BIOMASS POWER PLANT

摘要

The invention relates to a method for increasing the efficiency of an incineration plant (1), in particular of a waste incineration or biomass power plant, wherein the incineration plant (1) has a flue gas outlet (21) for flue gas (20) and at least one heat exchanger wall (4), which transfers heat to a heat transfer medium and of which at least one first predefined sub-surface (6) is impaired in the function thereof by deposits during operation of the incineration plant (1) and is therefore cleaned off at predefinable intervals by a cleaning medium from a cleaning device (26), characterised in that the intervals are regulated by heat flow measurements carried out by means of heat flow sensors (5) on the first sub-surface (6) and/or by the change in heat flow through the first sub-surface (6) over time determined from the heat flow measurements, wherein cleaning is only triggered if the heat flow falls below a first predefinable threshold value and simultaneously at least one of the following conditions is met: the change in the heat flow over time falls below a second predefinable threshold value; the difference from a heat flow measured as a reference on a second sub-surface (7) exceeds a predefinable difference value; the flue gas temperature exceeds a previously determined and stored empirical value, which has been determined for similar operating conditions of the incineration plant (1) following a previously carried out cleaning of the first sub-surface (6), by a predefinable amount; a predefinable minimum time has passed since the last cleaning; no cleaning of another sub-surface (7) is taking place at the same time; the incineration plant (1) has been in a stationary operating state for a predefinable time interval.