350 MW热电机组经济性优化分析

Analysis of Economic Optimization of 350 MW Thermal Power Unit

热电联产机组具有良好的节约能源效应,并能改善环境,还能提高供热质量,并且以热定电的方式提高电力系统稳定供电的综合效益,对降低城市大气污染和提高能源综合利用有着长远的意义。文章从汽轮机热效率的优化、选择高效率的汽轮机、合理降低汽轮机的背压、高压工业抽汽减温方式、烟气余热利用、采用邻机加热技术、锅炉效率的优化等方面论述供热机组的经济性。通过研究和分析,提出影响热电厂初期设计方案和运行经济性的解决途径。

Combined heat and power generation units have good energy-saving effects and can improve the environment.At the same time,they can improve the quality of heat supply and increase the comprehensive benefi ts of stable power supply through the method of thermal power generation.Meaning.The economics of heating units are discussed in terms of optimization of steam turbine thermal efficiency,selection of high-efficiency steam turbines,reasonable reduction of steam turbine back pressure,high-pressure industrial steam extraction and temperature reduction methods,use of fl ue gas waste heat,use of adjacent machine heating technology,and optimization of boiler effi ciency.Sex.Through research and analysis,put forward solutions that affect the initial design and operating economy of the thermal power plant.