公开(公告)号：US20210381432A1

公开(公告)日：2021-12-09

申请号：US16895619

申请日：2020-06-08

Applicant: General Electric Company

Inventor： David Leach ,  Valerie Suzanne Vernet ,  Jason Nathaniel Cook ,  Jayaprakash Natarajan

IPC: F02C3/20

Abstract: A method of operating a rotary machine below a minimum emissions compliance load in a response mode includes reducing a fuel split to zero. The fuel split apportions a total flow of fuel to the combustor between a first combustion zone and a second combustion zone. The method also includes determining a current operating temperature of the first combustion zone using a digital simulation of the rotary machine. The method further includes determining a target operating temperature of the first combustion zone. The target operating temperature enables the rotary machine to operate below a traditional Minimum Emissions Compliance Load (MECL) while still in compliance with emissions standards. The method also includes channeling a first flow of fuel to the first combustion zone. The first flow of fuel decreases the temperature of the first combustion zone to the target operating temperature.

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。

公开(公告)号：US20140096529A1

公开(公告)日：2014-04-10

申请号：US13647359

申请日：2012-10-08

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Brandon Taylor Overby ,  David Leach

IPC: F23R3/02

CPC classification number: F23R3/02 ,  F23L7/00 ,  F23L2900/07002 ,  F23L2900/07009 ,  F23R3/286 ,  F23R3/36

Abstract: A system includes a gas turbine combustor configured to combust a fuel and an oxidant, such as O2 and O2 mixtures. The system also includes an aerodynamic peg disposed in the gas turbine combustor. The aerodynamic peg includes a first passage configured to convey a first fluid into the gas turbine combustor and a second passage configured to convey a second fluid into the gas turbine combustor. The first fluid and second fluid are different from one another.

Abstract translation: 一种系统包括配置成燃烧燃料和氧化剂如O2和O2混合物的燃气轮机燃烧器。 该系统还包括设置在燃气轮机燃烧器中的空气动力学栓塞。 空气动力学栓塞包括构造成将第一流体输送到燃气涡轮机燃烧器中的第一通道和被构造成将第二流体输送到燃气涡轮机燃烧器中的第二通道。 第一流体和第二流体彼此不同。