节能2025，Vol.44Issue(3)：129-132,4.DOI:10.3969/j.issn.1004-7948.2025.03.035
二次再热汽温偏离设计值对1 000MW双机回热系统经济性影响分析及应对措施
Analysis of the influence of secondary reheat steam temperature deviation from design value on the economy of 1 000 MW dual-engine heat recovery system and countermeasures
李遂甫 1潘同洋 2高藴华 1李铭1
作者信息
- 1. 大唐郓城发电有限公司,山东 菏泽 274000
- 2. 大唐东北电力试验研究院有限公司,吉林 长春 130012
- 折叠
摘要
Abstract
In order to analyze the impact of deviation of the secondary reheat steam from the design value on the economy of a 1 000 MW dual machine reheating system,a thermal system model of the steam turbine is established to change the temperature of the secondary reheat steam and analyze its effects on parameters such as steam turbine heat consumption rate,power generation efficiency,boiler feedwater temperature,and flow rate.The results show that the deviation of the secondary reheat steam temperature from the design value will lead to an increase in the heat consumption rate of the steam turbine,a decrease in thermal efficiency,and an increase in parameters such as boiler feedwater flow rate,temperature,and power of the regenerative small steam turbine.To reduce the impact of reheat steam temperature deviation,measures such as boiler combustion optimization adjustment or heating surface modification can be taken to achieve safe and economical operation of the unit.关键词
二次再热/汽温偏差/双机回热/经济性Key words
secondary reheat/steam temperature deviation/dual machine reheating/economy分类
能源科技引用本文复制引用
李遂甫,潘同洋,高藴华,李铭..二次再热汽温偏离设计值对1 000MW双机回热系统经济性影响分析及应对措施[J].节能,2025,44(3):129-132,4.
