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Discussion on the design of 350 MW-class gas-steam combined cycle units
Author(s): 
Pages: 14-17
Year: Issue:  3
Journal: ELECTRIC POWER

Keyword:  联合循环机组余热锅炉参数匹配轴系布置;
Abstract: 随着我国能源结构的调整,环保要求日益提高,燃气-蒸汽联合循环电厂将逐渐增多,特别是随着"西气东输"及"引进液化天然气"工程的实施,我国将建设一些350MW级燃气-蒸汽联合循环机组.探讨了在350MW级燃气-蒸汽联合循环机组设计过程中如何选择燃气轮机并优化燃气轮机与蒸汽轮机的匹配关系,分析了余热锅炉补燃与不补燃的应用条件及各自特点,给出了几种蒸汽轮机循环系统的布置方案,并分析了蒸汽循环系统的选择方法,对联合循环电厂的轴系布置进行了比较,同时分析了环境温度对燃气轮机性能的影响,为大型燃气-蒸汽联合循环机组的设计优化提供参考.
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