小容积流量工况特性与过渡工况的确定  

Thr Characteristic of the Low Volume Flow Conditiona and Confirm on the Transitional Conditiona

作　　者：邵峰[1] 马帅[1] 唐国瑞[1] 

机构地区：[1]华北电力大学动力工程系,河北保定071003

出　　处：《应用能源技术》2008年第11期4-6,共3页Applied Energy Technology

摘　　要：提出了过渡工况的确定方法,对汽轮机在小容积流量工况下的末级特性进行了理论分析,着重分析了脱流首先出现的位置,并结合实验提出了汽轮机叶片根部出现脱流的判断方法及求解方法。利用此模型对某100MW机组进行了计算,计算结果与实测结果基本符合。A simple determinate method to the Transitional Conditiona, and the characteristic of the last stage is analyzed when steam turbine operate under the low volume flow condition. The circumfluence is analyzed about its first appearing position an dexpanding direction. Combined with tests the judgement method to the cireumfluence appear on the bottom of lamina and its solving method are given. The calculated result accords with the test data by taking IOOMW steam turbine unit as example.

关 键 词：小容积流量 脱流 过渡工况 

分 类 号：TK249[动力工程及工程热物理—动力机械及工程]