660MW超超临界机组热力系统变工况经济性分析  

Economic analysis of 660MW ultra-supercritical thermal system variable conditions

作　　者：蒋凌峰[1] 房林铁[1] 张红方 

机构地区：[1]国网河南省电力公司电力科学研究院,河南郑州450000 [2]国网新源宝泉抽水蓄能有限公司,河南新乡453636

出　　处：《节能》2013年第12期19-24,2,共6页Energy Conservation

摘　　要：由火电厂热力系统的通用汽水分布矩阵q-γ-τ方程,推导出火电厂热力系统的汽水分布向量;并对火电厂的热力系统的通用火用分布矩阵e-φ-β方程进行扩展,推导出通用火电厂热力系统的火用损和火用效率分布矩阵,为评价火电厂热力系统的经济性提供有力依据。针对上海汽轮机厂引进西门子技术的N660-25/600/600超超临界机组进行变工况分析,分析该热力系统的经济性。According on generic soda distribution matrix q-γ-τ of the power plant system,the soda distribution vector of the power plant system is derived,and then power plant system distribution matrix e-φ-βis expanded,and the lastly,the universal power plant exergy loss andexergy efficiency matrix is derived,and a strong basis for the economic evaluation of the power plant system is provided. The economy of N660-25 /600 /600 ultra-supercritical units thermal system in variable conditions,which is made in Shanghai Turbine Steam plant and introduced by Siemens technology is analysised.

关 键 词：热力系统 加热器 火用损扩展矩阵 

分 类 号：TK212[动力工程及工程热物理—动力机械及工程]