汽轮机排汽焓的在线计算及末级的变工况特性  

On-line Calculation of Exhaust Enthalpy and Various Operation Characteristic in Turbine

作　　者：崔映红[1] 张春发[1] 丁千玲[1] 

机构地区：[1]华北电力大学动力系,保定071003

出　　处：《汽轮机技术》2002年第3期171-173,共3页Turbine Technology

基　　金：华北电力大学青年科研基金 (No.0 60 2 11)

摘　　要：提出了一种简单的汽轮机末级变工况计算方法 ,该方法利用汽轮机实际在线监测数据和汽轮机结构数据 ,其计算精确度较高 ,收敛速度快 ,适于工程实际应用。利用此方法 ,对具有典型末级的某厂 30 0MW汽轮机组末级进行了变工况计算 ,得出了变工况下汽轮机的排汽焓及变工况中末级一些重要参数的变化规律。A simple various operation calculation method to last stage is presented. It is based on the actual on line monitoring datum and constructional datum of turbine. The result with which has a higher precision and the speed of converging is faster. It is suitable to engineering application. Using this method, a 300MW unit with a typical last stage is calculated. Its exhaust enthalpy and various rules of some important parameters is concluded. All these can be acted as the theoretical basis in analyzing and calculating the exhaust enthalpy and last stage in on line performance monitoring.

关 键 词：汽轮机 排汽焓 在线计算 末级 变工况 在线监测 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程]