200MW汽轮机多背压运行的热经济性分析  

An Analysis of the Thermodynamic Effectiveness of a 200 MW Steam Turbine with Multiple Back pressure Operation

作　　者：李勇[1] 曹祖庆[2] 

机构地区：[1]东北电力学院动力系,吉林吉林市132012 [2]东南大学,江苏南京210096

出　　处：《热能动力工程》2001年第2期138-140,共3页Journal of Engineering for Thermal Energy and Power

摘　　要：通过对某 2 0 0MW汽轮机采用三背压凝汽器运行相对于单压运行的凝结水温度、1号低压加热器抽汽量、各排汽缸最末级相对内效率及整机功率的变化情况的计算 ,定量分析了 2 0 0MW汽轮机采用三背压运行的经济性 ,并给出了2 0A calculation was conducted of the variation of parameters when a 200 MW steam turbine employs a triple back-pressure condenser instead of a single back-pressure one. Such parameters include the condensate temperature, the steam extraction rate of No. 1 low-pressure heater, the relative inner efficiency of the last stage of various exhaust cylinders and the power output of the turbine unit as a whole. On this basis a quantitative analysis was performed of the thermodynamic effectiveness of the 200 MW steam turbine employing the triple back-pressure condenser. In addition, also given are the cooling water temperature requirements to be met by the above-mentioned 200 MW steam turbine unit.

关 键 词：汽轮机 多压凝汽器 热经济性 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程]