Simulation calculation and analysis of energy-saving and efficiency-increasing of thermal power plants reform project

Abstract

Taking the third stage of National Energy Group Shengli Power Plant project as an example, the application effects of a number of hybrid transformation measures on the heat consumption of steam turbines were calculated, and the heat consumption of the unit was used as the characteristic value to compare the energy-saving benefit of various transformation measures. The results show that, there is a positive correlation between back pressure optimization and other energy-saving transformation measures, which can enhance the efficiency improvement effect of joint transformations. Among the three and four retrofit measures, data verification found that the ranking of the heat consumption benefits caused by individual retrofit measures: back pressure optimization retrofit> full cylinder efficiency retrofit> waste heat utilization retrofit> low pressure cylinder efficiency retrofit> medium pressure cylinder efficiency improvement transformation> high pressure cylinder efficiency improvement transformation> external steam-cooling transformation.