METHOD OF FUEL WITH VARIABLE COMPOSITION COMBUSTION PROCESS AUTOMATIC OPTIMIZATION

FIELD: fuel combustion devices.SUBSTANCE: invention relates to methods and devices for burning of variable composition fuel. Invention is primarily intended for combusting of fuel (hydrocarbon mixtures) of an undefined composition, such as associated gas, oil and gas processing waste, and can be used to optimize the process of burning or burning off of fuels with an undefined composition in thermal or electric energy generation plants. Method of the combustion process automatic optimization that is based on continuous fuel consumption and coolant temperature measurement at the fuel-burning device heat exchanger outlet, at which the one-time reduction in fuel consumption is performed, which makes it possible to specify the trend of change in the fuel combustion specific heat, unknown as a result of arbitrary changes in the composition of the used fuel, synchronizing the heat exchanger outlet temperature change rate with the rate of fuel consumption change, further performing simultaneous and / or non-simultaneous interrelated discrete changes in fuel consumption and air supply to the fuel-burning device in accordance with one of the optimizing actions algorithms implemented by the computer by a given program, with provision of the possibility to simplify the way to optimize the fuel combustion process and increasing the accuracy of optimal parameters achieving. At that, the minimum possible fuel consumption is used as the optimization indicator, which combustion ensures the set temperature of the heat carrier at the heat exchanger outlet.EFFECT: invention allows to optimize the fuel with variable composition combustion process, and also allows to reduce the optimization process labor intensity and increase the efficiency in time, while simplifying the control system design, with a general reduction in the number of performed operations.1 cl, 1 dwg Изобретение относится к способам и устройствам для сжигания топлива переменного состава. Изобретение предназначено преимущественно для сжигания топлива (смесей углеводородов) неопределенного состава, таких как попутный газ, отходы нефтегазопереработки, и может найти применение для оптимизации процесса сжигания или дожигания топлив неопределенного состава на предприятиях для выработки тепловой или электрической энергии. Способ автоматической оптимизации процесса сжигания топлива, основанный на непрерывном измерении расхода топлива и температуры теплоносителя на выходе теплообменника топливосжигающего устройства, пр