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在线监测凝汽式汽轮机相对内效率时 ,难以得到准确的排汽焓 ,使在线确定汽轮机相对内效率比较麻烦。提出了一种基于发电厂现有监测参数基础上的在线监测凝汽式汽轮机相对内效率的新方法 ,该方法避开了确定排汽焓的困难 ,还可计入各漏汽、厂用汽的影响 ,使计算精度满足工程应用需要 ,在佳木斯电厂、华能大连电厂等应用效果良好
When on-line monitoring the relative internal efficiency of the condensing steam turbine, it is difficult to get accurate enthalpy of the exhaust gas so that it is troublesome to determine the relative internal efficiency of the steam turbine online. A new method of on-line monitoring the relative internal efficiency of condensing steam turbine based on the existing monitoring parameters of the power plant is proposed. The method avoids the difficulty of determining the enthalpy of steam discharge, Of the impact of the calculation accuracy to meet the needs of engineering applications in Jiamusi Power Plant, Huaneng Dalian Power Plant and other applications with good results