汽轮机通流部分热力参数在线计算方法  

On Line Calculation Method for Thermal Parameters of Turbine

作　　者：曹小玲[1] 李帆[1] 鄢晓忠[1] 王运民[1] 唐世斌[1] 张航[1] 

机构地区：[1]长沙理工大学能源与动力工程学院,长沙410076

出　　处：《汽轮机技术》2013年第3期199-201,204,共4页Turbine Technology

基　　金：国家重点基础研究发展计划(973计划)基金资助项目(2009CB219803-03)

摘　　要：介绍了特征通流面积的相关表达式,结合该表达式和相对内效率提出一种基于热力参数汽轮机通流部分在线计算方法。该方法是一种不需要知道机组几何参数,主要基于压力、温度和主蒸汽流量即可实施。以某电厂310MW汽轮机为对象,对多个工况下的计算结果进行对比,结果显示:计算结果满足工程计算精度和实用性的要求。Introducing the relevant expression of Characteristic Flow Area, and combining this expression and relative internal efficiency, this thesis will propose, basing on thermal parameter, an online computational method of steam tribune flow passage. Characterized by high computation speed and accuracy, this computational method works mainly based upon pressure and temperature without having to know the set geometrical parameter. Using the 310MW steam tribune of a thermal power plant for research, and comparing the result of different working condition, this thesis has draw a conclusion that the result can meet the requirements of engineering calculating precision and practicality.

关 键 词：级组 特征通流面积 相对内效率 监测 

分 类 号：TK264[动力工程及工程热物理—动力机械及工程]