某引进型300MW机组加热器热经济性影响因素分析  

Analysis of factors influencing on thermal efficiency of heater of an introduced 300 MW unit

作　　者：王义 闫丽涛[2] 

机构地区：[1]华电新疆发电有限公司乌鲁木齐热电厂,新疆乌鲁木齐830017 [2]华北电力大学能源与动力工程学院,河北保定071003

出　　处：《华电技术》2009年第12期45-47,50,共4页HUADIAN TECHNOLOGY

摘　　要：结合机组节能改造需要,基于等效热降法理论,定量分析了加热器端差和抽汽压损对某引进型300MW机组回热系统热经济性的影响。针对定量分析结果,找出了回热系统结构的缺陷和问题,为该类型机组回热系统运行优化提供了依据。Combining with the requirement of unit energy-saving reformation,based on the theory of equivalent enthalpy drop method,the influence of temperature difference between heater terminals and steam extraction pressure loss on the thermal efficiency of the regenerative heating system of an introduced 300 MW unit was analyzed quantitatively. Aiming at the result of the quantitative analysis,the defects and problems in the regenerative heating system structure were found,and the result can be used as a foundation for optimal operation of regenerative heating system of similar units.

关 键 词：等效热降法 加热器端差 抽汽压损 热力系统运行优化 

分 类 号：TK212[动力工程及工程热物理—动力机械及工程]