对多背压汽轮机平均排汽温度降低值的讨论  

Discussion on the Decreasing Value of Exhaust Temperature of Steam Turbine with Multipressure Condenser

作　　者：李勇[1] 曹祖庆[2] 

机构地区：[1]东北电力学院,吉林132012 [2]东南大学,南京210096

出　　处：《汽轮机技术》2000年第1期10-14,共5页Turbine Technology

摘　　要：针对目前文献中认为采用多压凝汽器后 ,相对于单背压汽轮机 ,“其排汽平均温度降低值随冷却水温提高逐渐增大”的观点 ,进行了详细的讨论和计算。指出在不同假设条件下 ,多背压汽轮机平均排汽温度降低值随冷却水温度提高的变化情况应该有不同的结论。WT5”BZ]Aimed at the viewpoint of references that as the temperature of cooling water is raised,the decreasing value of exhaust temperature of steam turbine with multipressure condenser relatively to that with single pressure condenser is gradual raised,the calculation and discussion on the viewpoint is done in this paper.Finally,the new viewpoint is given that the change of the decreasing value of exhaust temperature alone with the change of cooling water temperature is different under different hypothesis for steam turbine with multipressure condenser. [WT5HZ]

关 键 词：汽轮机 多压凝汽器 多背压 排汽温度 冷却水 

分 类 号：TK269.3[动力工程及工程热物理—动力机械及工程]