公开(公告)号：US20140283524A1

公开(公告)日：2014-09-25

申请号：US14154692

申请日：2014-01-14

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Suhui LI ,  Joel Meier HAYNES ,  Ping YU ,  Wei Chen ,  David Leach ,  John Joseph Lipinski ,  Manuel Moises Cardenas, JR. ,  Wenjie Wu ,  Qingguo Zhang

IPC: F02C7/264 ,  F23R3/36 ,  F02C3/20

CPC classification number: F02C7/264 ,  F02C3/20 ,  F02C3/22 ,  F02C9/40 ,  F23R3/36

Abstract: 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.

Abstract translation: 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。