350MW机组热力系统经济性分析

Economic Analyzing on 350MW Unit's Thermal System

汽轮机热力系统各种局部变化对机组经济性有不同的影响。本文以 350MW机组为例,采用等效焓降法定量分析补充水系统、厂用蒸汽系统、除氧器备用汽源系统、排污及其利用系统、再循环系统的局部变化对机组经济性的影响。为正确、合理组成热力系统及指导热力系统的正确运行提供依据。

Each part variety of steam turbine thermal system can cause different infections on unit's economic. This paper took the 350MW unit as a example, equivalent enthalpy drop was adopted for analyzing unit's economic when part changes took place in makeup water system、plant using steam、system of deoxygenizer standby steam fountainhead、exclude dirt and its use system and recycle system. This work may provide evidences for composing heat system with exactitude and reasonable as well as guiding operation of heat system.