湿蒸汽区排汽焓动态在线计算模型的研究  

Research of online model for calculating exhaust enthalpy in wet steam district

作　　者：闫顺林[1] 王俊有[1] 孙轶卿[1] 

机构地区：[1]华北电力大学能源与动力工程学院,河北保定071003

出　　处：《华北电力大学学报（自然科学版）》2008年第1期62-66,共5页Journal of North China Electric Power University：Natural Science Edition

摘　　要：针对常规能量平衡法的不足,结合低压缸相对内效率、汽水分布通用矩阵方程和功率方程,提出湿蒸汽区排汽焓的动态在线计算新模型。对典型汽轮机组的计算结果表明:该模型计算过程简单、所需测点少、计算精度高、收敛速度快、适于工程实际应用。Combining relative internal efficiency of low pressure cylinder, steam-water distribution equation, and power equation, This paper proposed a model of online calculation steam turbine exhaust enthalpy in wet steam district. The calcnlation results for various steam turbines different from operating modes prove that this model is simple, a few parameters are needed, the precision of calculation is high, rapidity of convergence is quick, and it is suitable for practical application.

关 键 词：湿蒸汽 排汽焓 能量平衡法 动态 在线 模型 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程]