抽汽压损对煤耗影响分析的通用微分关系式  

General Differential Relationship Equation for Influence of Extraction Steam Pressure Loss on Coal Consumption of Unit

作　　者：李永华[1] 李玉辉[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》2008年第6期410-412,454,共4页Turbine Technology

摘　　要：以小扰动理论为基础,根据火电机组热力系统汽水分布通用矩阵方程、比内功方程、循环吸热量方程及发电标准煤耗率的计算公式,导出了抽汽压损对机组发电标准煤耗率影响的通用微分关系式,利用这一关系式可以准确而快速地计算各级加热器抽汽压损对机组发电煤耗的影响,其通用性强,适于程序化。Based on the theory of small disturbance, steam-water distribution general matrix equation of thermal system for the coal-fired power unit, specific internal work equation, cycle heat absorption equation and the calculation formula of dynamoelectric standard coal consumption rate, the general differential relationship equation for influence of extraction steam pressure loss on coal consumption of unit is derived in the paper. With the relationship formula, proved to be possessed of the character of universal and suitable for programming, we can calculate the influence of extraction steam pressure loss to coal consumption accurately and quickly.

关 键 词：火电机组 加热器抽汽压损 发电煤耗率 微分关系式 

分 类 号：TK284.1[动力工程及工程热物理—动力机械及工程]