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1. 发明公开

EP2955353A1 Method for operating a gas turbine with flue gas recirculation 审中-公开
标题翻译： Verfahren zum Betreiben einer Gurburbine mitAbgasrückführung
公开(公告)号：EP2955353A1
公开(公告)日：2015-12-16
申请号：EP14172165.4
申请日：2014-06-12
申请人： ALSTOM Technology Ltd
发明人： Guethe, Felix , Alemela, Panduranga-Reddy
IPC分类号： F02C3/34 , F02C1/08 , F02C9/26
CPC分类号： F02C3/34 , F02C9/34 , F05D2270/082 , Y02E20/16
摘要： The invention relates to a method for operating a gas turbine (10) with flue gas recirculation (FGR), which gas turbine (10) comprises a combustor (12) with one or more burners, which are configured as premix burners to generate a premix flame and are equipped with an additional pilot fuel capability for starting and/or part load stabilizing purposes, whereby part of the flue gas leaving said gas turbine (10) is recirculated back to the entrance (16) of said gas turbine (10) to reduce NOx emission, and whereby pilot fuel is added with a pilot fuel ratio (PFR) to stabilize the premix flames of said one or more burners.
To use FGR without the disadvantage of substantially reducing the stability of the premix flames, for a part load of the gas turbine (10) between 50% and 100% of full load pilot fuel is added with a pilot fuel ratio (PFR) greater than 0 and less than 0.4.
摘要翻译：本发明涉及一种用于操作具有烟道气再循环（FGR）的燃气轮机（10）的方法，该燃气轮机（10）包括具有一个或多个燃烧器的燃烧器（12），其被配置为预混燃烧器以产生预混合并且配备有用于启动和/或部分负荷稳定目的的额外的先导燃料能力，由此离开所述燃气轮机（10）的烟道气的一部分再循环回所述燃气轮机（10）的入口（16）至减少NOx排放，并且由此以引燃燃料比（PFR）添加引燃燃料以稳定所述一个或多个燃烧器的预混火焰。为了使用FGR而不会显着降低预混火焰的稳定性的缺点，对于全负荷引燃燃料的50％至100％之间的燃气轮机（10）的部分负载，加入的导燃燃料比（PFR）大于 0且小于0.4。

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