超超临界汽轮机抽汽系统数值研究  

Numerical Investigation on Extraction System in Ultra-supercritical Steam Turbine

作　　者：毛研伟[1] 竺晓程[1] 周代伟 杜朝辉[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200240 [2]上海电气电站有限公司,上海200240

出　　处：《汽轮机技术》2012年第2期95-98,共4页Turbine Technology

摘　　要：针对某型号超超临界汽轮机中3个典型的抽汽模型进行数值模拟,获得了抽汽系统内部的复杂流场数据,定量地给出了3个抽汽模型内各部分的流动损失,结合典型截面的流线图,分析了抽汽系统内的流动损失特性,在此基础上,利用工程方法计算3个抽汽模型的流动损失,并与数值计算的结果进行对比,结果吻合较好。Three typical extraction systems in an ultra supercritical steam turbine is numerically simulated with CFD software, and the flow field in three extraction systems is acquired, the flow loss is acquired quantitative, then analyze the characteristics of flow loss with the streamline of different planes. An engineering method is used to calculate the flow loss, which is compared with one from CFD result.

关 键 词：超超临界 抽汽系统 数值分析 流动损失 

分 类 号：TK263.1[动力工程及工程热物理—动力机械及工程]