某引进型300MW机组加热器热经济性影响因素分析

华电技术 ›› 2009, Vol. 31 ›› Issue (12): 45-47.

某引进型300MW机组加热器热经济性影响因素分析

王义¹，闫丽涛²

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

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-12-25 发布日期:2009-12-25

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

WANG Yi¹,YAN Litao²

1.Urumqi Thermal Power Plant, Huadian Xinjiang Power Generation Corporation Limited, Urumqi 830017, China; 2.The School of Energy and Power Engineering, North China Electric Power University, Baoding 071003, China

Received:1900-01-01 Revised:1900-01-01 Online:2009-12-25 Published:2009-12-25

摘要/Abstract

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300MW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。

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

Abstract: 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.

Key words: equivalent enthalpy drop method, temperature difference between heater terminals, steam extraction pressure loss, thermal power system operation optimization

王义;闫丽涛. 某引进型300MW机组加热器热经济性影响因素分析[J]. 华电技术, 2009, 31(12): 45-47.

WANG Yi;YAN Litao. Analysis of factors influencing on thermal efficiency of heater of an introduced 300MW unit[J]. Huadian Technology, 2009, 31(12): 45-47.

[1]	张学海. 直接空冷机组背压修正曲线及经济运行背压研究[J]. 华电技术, 2017, 39(3): 1-4.
[2]	段景卫1，李建刚2，陈传平1，刘俊峰3. 440t/h循环流化床锅炉滚筒冷渣器冷却水系统改造[J]. 华电技术, 2014, 36(9): 42-45.
[3]	郭增良;袁雄俊 . 490t/h循环流化床供热机组滚筒冷渣器余热利用改造及优化[J]. 华电技术, 2010, 32(12): 40-43.