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1000MW机组加热器压损对热经济性影响的分析
引用本文:陈立新,李岩,田松峰,郝青哲. 1000MW机组加热器压损对热经济性影响的分析[J]. 汽轮机技术, 2011, 53(3)
作者姓名:陈立新  李岩  田松峰  郝青哲
作者单位:1. 河南省电力勘测设计院,郑州,450000
2. 电站设备状态监测与控制教育部重点实验室(华北电力大学),保定,071003
摘    要:准确计算加热器抽汽压损对经济性的影响,对机组运行、检修具有重要意义。以热力系统状态方程为基础,推导出了加热器抽汽压损对机组热经济性的影响计算模型,并以1 000MW机组为研究对象,将矩阵法与等效焓降、常规热平衡法计算结果进行比较,表明利用矩阵法模型简单、计算准确等优点。

关 键 词:热力系统  加热器抽汽压损  热经济性  矩阵法  

The Analysis of Thermal Economic on Steam Extraction Pressure Loss in 1000MW Unit
CHEN Li-xin,LI Yan,TIAN Song-feng,HAO Qing-zhe. The Analysis of Thermal Economic on Steam Extraction Pressure Loss in 1000MW Unit[J]. Turbine Technology, 2011, 53(3)
Authors:CHEN Li-xin  LI Yan  TIAN Song-feng  HAO Qing-zhe
Affiliation:CHEN Li-xin1,LI Yan2,TIAN Song-feng2,HAO Qing-zhe2(1 Electric Power Survey Design Institute of Henan Province,Zhengzhou 450000,China,2 MOE's Key Lab of Condition Monitoring and Control of Power Plant Equipment,North China Electric Power University,Baoding 071003,China)
Abstract:Evaluating exactly heat economy of unit caused by steam extraction pressure loss is significance for repair of the modify system.Based on the matrix,the calculation formula is deduced on the steam extraction pressure loss towards the power increment.Taking ultra-supercritical 1 000MW unit as research object,the results of matrix was compared with the results of normal energy balance method.The result show that the matrix model was convenient,rapid and accurate.
Keywords:thermal system  steam extraction pressure loss  heat economy  matrix  
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