Method of optimizing the power-on point of a burner near the minimum operational temperature range of a boiler

摘要

Process for optimizing the switching-on point of a burner comprises correcting the burner switching-on point in the region of the minimal boiler temperature by an auxiliary parameter calculated depending on the thermal load so that the minimal boiler temperature TMIN is not exceeded even with different loads during normal operation. Preferred Features: The auxiliary parameter is determined depending on the burner switching-on pre-installing time, preferably determined from the boiler temperature gradient and the burner switching-on pre-installing time TBVZ. The temperature for the corrected burner switching-on point TEIN' is calculated according to the formula: TEIN' = TMIN + TBVZ x boiler temperature gradient.