Research of operation the parameters in the boiler TGMP-204HL at burning gas

Abstract

The efficiency of fuel combustion in power boilers of thermal power plants largely depends on the layout of the burners in the combustion chamber, on their number and unit capacity. An important condition for the efficiency of the selected combustion mode is the absence of a torch surge from the combustion products onto the screen heating surfaces of the furnace. To prevent the formation of large amounts of harmful emissions of nitrogen oxides into the atmosphere, the necessary requirement for burning fuels is to reduce the local values of the flame temperature in the volume of the furnace. The use of powerful burners in power boilers, with a decrease in their number, leads to an increase in the length of the torch and, with their frontal arrangement, gives a torch thrust onto the rear screen. The article presents the results of an experimental trail of the efficiency of gas burning in the direct-flow supercritical boiler TGMP-204HL of the Surgut GRES-2 PJSC UNIPRO when it is operating on 24 burners at various steam loads. The values of the efficiency of boilers, emissions of nitrogen oxides and the distribution of the radiation intensity of combustion products along the height of the furnace are given. Comparison of the obtained results on efficiency and emissions of nitrogen oxides with the data of the TGMP-204HL boiler using 36 burners is carried out.