火力发电厂烟气余热利用系统的研究设计

STUDY ON AND DESIGN OF RESIDUAL HEAL UTILIZATION SYSTEM FOR FLUE GAS IN THERMAL POWER PLANTS

面对我国能源和水资源紧缺、环境恶化日趋严重等状况,在电厂设计中优化系统设计,合理地利用电厂的烟气余热,提高机组效率,减少煤耗,是节能的主要措施之一。对发电厂烟气余热利用的途径进行了分析,重点研究了利用烟气余热来加热凝结水的系统。研究表明,设置烟气余热利用系统,可提高全厂热效率,降低煤耗,增加发电量,具有一定的经济效益和社会效益。

Facing the situtation in shortage of energy and water resources, as well as the deterioration of environment being severe with each passing day in our country, one of the main measure for energy - saving is optimization of system design in designing thermal power plants, utilizing reasonably the residual heat of flue gas in thermal power plants, enhancing the efficiency of units, and decreasing the coal consumption. The way of utilizing residual heat of flue gas in thermal power plants has been analysis, the system of utilizing residual heat from flue gas to heat the condensate being emphasitieally studied. Study shows that the installing of residual heat utilization system of flue gas can enhance thermal efficiency of the whole plant, decreasing the coal consumption,increasing the generated energy,having certain economic and social benefits.