机组初参数的热经济性模型研究及其应用

以汽轮机功率方程为基础,应用偏微分理论,根据汽轮机变工况的基本原理以及各参数之间的变化关系,经过严格的数学推导,得到了主蒸汽参数变化对机组热经济性影响的数学计算模型。此外,还以N600-16.7/537/537-I型汽轮机的运行数据为例,对模型进行验证。计算实例表明:该模型具有计算结果准确、使用方便、通用性强等特点,适用于工程实际应用,对机组性能监测和优化运行有重要意义。

A Heat Economy Calculation Model Study and Its Application on Main Steam Parameters of Unit

This paper constructs equations of heat economy on the impact of main steam parameters by strict derivation that based on the partial differential theory.According to the turbine power equation,the fundamental of turbine varying condition and the relationship of parameters,the law of the model can be built.The model which is discussed in the paper is proved to be more accurate,simple and universa1 by calculating the unit of N600-16.7/537/537-I.Especially it's suitable for engineering application.The method will play an important role in the performance supervision and the operational optimization of power plants.