公开(公告)号：US20160265779A1

公开(公告)日：2016-09-15

申请号：US14644286

申请日：2015-03-11

Applicant: General Electric Company

Inventor： Joel Meier HAYNES ,  Narendra Digamber JOSHI ,  David James WALKER ,  Junwoo LIM ,  Sarah Marie MONAHAN ,  Krishnakumar VENKATESAN

IPC: F23R3/28 ,  B01F5/00 ,  B01F5/04 ,  F23R3/14 ,  B01F3/02

CPC classification number: F23R3/286 ,  F23R3/14

Abstract: 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.

Abstract translation: 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。