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1.发明申请公开(公告)号：US20160265779A1
公开(公告)日：2016-09-15
申请号：US14644286
申请日：2015-03-11
发明人： Joel Meier HAYNES , Narendra Digamber JOSHI , David James WALKER , Junwoo LIM , Sarah Marie MONAHAN , Krishnakumar VENKATESAN
摘要： A fuel nozzle for a gas turbine includes a first radial swirler and a second radial swirler that introduce radial swirl to a flow of pressurized air; a chevron splitter between the two swirlers that directs the swirled flow of pressurized air to a main mixer passage to form a fuel-air mixture with fuel injected into the fuel nozzle; and a main mixer passage that receives the fuel-air mixture from the premixing chamber, and includes a converging throat that accelerates the fuel-air mixture. A method of mixing fuel and air for combustion in a gas turbine includes introducing a radial swirl to first and second flows of pressurized air; directing the swirled, pressurized air to a premixing chamber via a chevron splitter; mixing the swirled, pressurized air with a fuel jet injected into the premixing chamber to form a fuel-air mixture; and accelerating the fuel-air mixture in the main mixer passage having a converging throat.
摘要翻译： 一种用于燃气轮机的燃料喷嘴包括第一径向旋流器和将径向涡流引入加压空气流的第二径向旋流器; 两个旋流器之间的雪佛龙分流器，其将涡流的加压空气引导到主混合器通道以形成燃料喷射到燃料喷嘴中的燃料 - 空气混合物; 以及主混合器通道，其从预混合室接收燃料 - 空气混合物，并且包括加速燃料 - 空气混合物的会聚喉部。 在燃气轮机中混合用于燃烧的燃料和空气的方法包括：向第一和第二加压空气流引入径向涡流; 通过雪佛龙分离器将旋转的加压空气引导到预混合室; 将旋转的加压空气与喷射到预混合室中的燃料喷射混合以形成燃料 - 空气混合物; 并且加速具有会聚喉部的主混合器通道中的燃料 - 空气混合物。
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2.发明申请NOZZLE SYSTEM AND METHOD FOR STARTING AND OPERATING GAS TURBINES ON LOWBTU FUELS 有权用于启动和操作LOWBTU燃料上的气体涡轮的喷嘴系统和方法公开(公告)号：US20140283524A1
公开(公告)日：2014-09-25
申请号：US14154692
申请日：2014-01-14
发明人： Suhui LI , Joel Meier HAYNES , Ping YU , Wei Chen , David Leach , John Joseph Lipinski , Manuel Moises Cardenas, JR. , Wenjie Wu , Qingguo Zhang
摘要： A fuel nozzle system for enabling a gas turbine to start and operate on low-Btu fuel includes a primary tip having primary fuel orifices and a primary fuel passage in fluid communication with the primary fuel orifices, and a fuel circuit capable of controlling flow rates of a first and second low-Btu fuel gases flowing into the fuel nozzle. The system is capable of operating at an ignition status, in which at least the first low-Btu fuel gas is fed to the primary fuel orifices and ignited to start the gas turbine, and a baseload status, in which at least the second low-Btu fuel gas is fired at baseload. The low-Btu fuel gas ignited at the ignition status has a content of the first low-Btu fuel gas higher than that of the low-Btu fuel gas fired at the baseload status. Methods for using the system are also provided.
摘要翻译： 一种燃料喷嘴系统，用于使得燃气轮机能够在低Btu燃料上启动和操作，包括具有主要燃料孔和与主要燃料孔流体连通的主要燃料通道的主要末端，以及能够控制 第一和第二低Btu燃料气体流入燃料喷嘴。 该系统能够在点火状态下操作，其中至少第一低Btu燃料气体被供给到主燃料喷嘴并被点燃以起动燃气轮机，以及基本状态，其中至少第二低Btu燃料气体 Btu燃气在基础燃烧。 在点火状态下点燃的低Btu燃料气体的第一低Btu燃料气体的含量高于在基本状态下燃烧的低Btu燃料气体的含量。 还提供了使用该系统的方法。
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