确定带疏水泵汇集式加热器出口混合焓值的直接计算法

A Current Direct Calculation Method Used for Determining Outlet Mix Water Enthalpy of the Collection Heater with a Drain Pump

以常规热平衡方法为基础,借助于循环函数法中加热单元的概念,提出了带疏水泵汇集式加热器出口混合焓值的通用直接计算方法。本方法简捷快速准确,既适用于计算机处理也适用于手算,与等效热降法配合使用,将使电站热力系统的定量分析更加便捷。实例计算结果与常规热平衡法完全相同。

In this paper the authors gives a current direct calculation method used for determining outlet mix water enthalpy of the collection heater with a drain pump by means of the concept of heating unit in circulating function, based on the normal energy balance method. That method given in this paper is simple, quick＂ and accurate, both suitable to computer handling and manual handling. Furthermore, when combined with basic theory of equivalent heat drop, power plant thermal system deciding quantity calculation is faster. The calculation result of the actual example by those method is identical completely.