热电厂热经济性指标分析研究【参考】.doc

分类号　　　　　　　　　　　　 郑州电力高等专科学校 毕 业 设 计（论 文） 题　目:热电厂热经济性指标分析研究　　 　 Title : Analysis of thermal power plant thermal economic indicators 系　　部　动力工程系　　　　 专业 电厂热能动力装置 　 姓　　名***　　　　　 班级　***　　 　　 指导教师　***　　　　　 职称　***　　　　　　 论文报告提交日期　2012年6月1日　　　　　　 郑州电力高等专科学校 摘要：热电联产是指发电厂既生产电能，又利用汽轮发电机作过功的蒸汽对用户供热的生产方式。以热电联产方式运行的火电厂称为热电厂。对外供热的蒸汽源是抽汽式汽轮机的调整抽汽或背压式汽轮机的排汽，前者供工业生产，后者供民用采暖。热电联产集中供热具有明显地节约能源、改善环境、提高供热质量、增加电力供应等综合效益。热电厂的建设是治理大气污染和提高能源综合利用率的重要手段之一。通过对热电厂的热经济运行进行分析和研究与对不供热机组联合运行热负荷的分配，热力计算及经济指标的计算，根据计算比较热量法与(火用)方法在热力系统分析计算上的差别。同时，针对日益增长的热负荷需求，结合热电厂生产运行的实际问题进行具体分析计算，得出如何做好经济指标分析的结论。 关键词：热电联产；热经济性指标；热负荷；经济运行；原则性热力系统 Abstract：Cogeneration power plants produce both electricity, turbine generator for the production of the power of steam users heating. Known as the thermal power plant to run cogeneration thermal power plant. Source of external heating steam extraction turbine to adjust extraction or back pressure steam turbine exhaust steam, the former for the industrial production, the latter for civil heating. Cogeneration district heating and energy conservation, improve the environment, improve the quality of heating, increasing electricity supply and other comprehensive benefits. Heat and power plant construction is an important means of air pollution and improve the comprehensive utilization of energy. Analysis and research and not a joint operation of the heating unit heat load distribution of thermodynamic calculation and the calculation of economic indicators, according to the calculation of the heat method (fire) method in the calculation of the thermodynamic system analysis on the hot economic operation of thermal power plants difference. For increasing the thermal load demand, combined with the practical problems of heat and power plant production run for the specific analysis and calculation, how to do the analysis of economic indicators conclusion. Keywords: cogeneration; hot-economic indicators; heat load; economic operation; principle thermodyna