末级中空静叶除湿方法的数值研究  

Numerical Simulation on Moisture Removal Method of Final Stage Hollow Vane

作　　者：鞠凤鸣[1,2] 王祥锋[1] 颜培刚[1] 韩万金[1] 

机构地区：[1]哈尔滨工业大学推进理论与技术研究所,哈尔滨150001 [2]哈尔滨汽轮机厂有限责任公司,哈尔滨150046

出　　处：《汽轮机技术》2011年第5期331-334,388,共5页Turbine Technology

摘　　要：采用数值计算方法对某末级中空静叶片开双抽缝除湿方法进行了研究。通过研究抽吸缝除湿机理设计了两种方案的双抽吸缝结构,计算了一级采用双抽吸缝结构的叶栅流场。比较了两种双抽吸缝方案条件下不同叶高上的流场、湿度场以及叶片表面的压力情况。通过分析得到两种抽吸缝方案的计算结果,得到了两种双抽吸缝中占优的方案。The structure of double moisture removal suction slot in a final stage hollow vane was investigated using numerical simulation methods. Two types of suction slots configuration were designed according to the moisture removal suction mechanism. The flow filed of a steam turbine stage with double moisture removal suction slots was calculated. The flow field, moisture field and pressure distribution at different span wise were compared for the two types of cases. Through analyzing the computation result of the two types of suction slots configuration, the paper get the better case.

关 键 词：静叶片 抽吸 除湿 数值研究 

分 类 号：TK263.3[动力工程及工程热物理—动力机械及工程]