A Analysis for the Effect of Coal Consumption Rate on Main Steam Pressure

Main steam pressure is one of the main parameters that must be closely monitored and adjusted in the unit actual operation.Due to the main steam pressure deviating the design data inevitably,it affects the unit electricity standard coal consumption rate,the heat-economy and safety.Based on the unified physical model,mathematical model for thermal economy analysis of thermodynamic system and energy efficiency analysis model of thermodynamic system under multivariate disturbances,changes of main steam pressure effect on coal consumption rate calculation model has been built.Taking a 660 MW power unit as an example,validated this model,and calculated and drew the effect of coal consumption rate on main steam pressure under different conditions,and analyzed its rule.The calculation errors of calculation model are smaller,it is sufficient to meet the actual needs of Engineering.