公开(公告)号：US20160010856A1

公开(公告)日：2016-01-14

申请号：US14793775

申请日：2015-07-08

Applicant: ALSTOM Technology Ltd

Inventor： Fernando BIAGIOLI ,  Madhavan Narasimhan POYYAPAKKAM ,  Stefan WYSOCKI

IPC: F23D14/02 ,  F23R3/14

CPC classification number: F23D14/02 ,  F23C2900/07001 ,  F23D14/24 ,  F23R3/14

Abstract: The present invention relates to an axial swirler, in particular for premixing of oxidizer and fuel in gas turbines. The axial swirler for a gas turbine burner includes a plurality of swirl vanes with a streamline cross-section being arranged around a swirler axis and extending in radial direction between an inner radius Rmin and an outer radius Rmax. Each swirl vane has a leading edge, a trailing edge, and a suction side and a pressure side extending each between the leading and trailing edges. A discharge flow angle a between a tangent to the swirl vane camber line at its trailing edge and the swirler axis is first function of radial distance R from the swirler axis. A position of maximum camber of the swirl vane is second function of radial distance R from the swirler axis. At least one swirl vane of the first and second functions include each a respective local maximum and local minimum values along said radial distance from Rmin to Rmax. The invention also relates to a burner with such a swirler.

Abstract translation: 本发明涉及一种轴向旋流器，特别是用于燃气轮机中氧化剂和燃料的预混合。 用于燃气涡轮燃烧器的轴向旋流器包括多个旋流叶片，其流线横截面围绕旋流器轴线布置并且在径向方向上在内半径Rmin和外半径Rmax之间延伸。 每个旋流叶片具有前缘，后缘以及每个在前缘和后缘之间延伸的吸力侧和压力侧。 在其后缘处的旋流叶片弯曲线的切线与旋流器轴线之间的排出流量角度α是来自旋流器轴线的径向距离R的函数。 涡流叶片的最大弯度的位置是来自旋流器轴线的径向距离R的第二函数。 第一和第二功能的至少一个旋流叶片包括沿着从Rmin到Rmax的所述径向距离的各自的局部最大值和局部最小值。 本发明还涉及具有这种旋流器的燃烧器。

公开(公告)号：US20140305128A1

公开(公告)日：2014-10-16

申请号：US14245639

申请日：2014-04-04

Applicant: ALSTOM Technology Ltd

Inventor： Madhavan Narasimhan POYYAPAKKAM ,  Khawar Syed ,  Klaus Knapp ,  Torsten Wind

IPC: F23R3/26 ,  F02C7/057

CPC classification number: F02C7/057 ,  F05D2240/35 ,  F23N1/022 ,  F23N2021/10 ,  F23R3/26 ,  F23R3/346 ,  F23R2900/03341

Abstract: A combustion chamber including a body with a fuel supply duct for supplying a fuel into the body and a carrier air supply duct for supplying air into the body. An adjusting system adjusts the carrier air mass flow supplied into the body according to the features of the fuel.

Abstract translation: 一种燃烧室，包括具有用于向主体供应燃料的燃料供应管道的主体和用于将空气供应到主体中的载体空气供应管道。 调节系统根据燃料的特征来调节供给到体内的载气质量流量。

公开(公告)号：US20140123661A1

公开(公告)日：2014-05-08

申请号：US14072170

申请日：2013-11-05

Applicant: ALSTOM Technology Ltd

Inventor： Fernando BIAGIOLI ,  Madhavan Narasimhan POYYAPAKKAM ,  Riccardo CENNI ,  Khawar SYED

IPC: F23R3/14

CPC classification number: F23R3/14 ,  F23C7/004 ,  F23D2900/14021 ,  F23R3/286 ,  F23R3/36

Abstract: An axial swirler, in particular for premixing of oxidizer and fuel in gas turbines, includes a series of swirl vanes with a streamline cross-section. Each swirl vane has a leading edge, a trailing edge, and a suction side and a pressure side extending each between the leading and trailing edges. The swirl vanes are arranged around a swirler axis, wherein the leading edges extend essentially in radial direction. Flow slots are formed between the suction side of each swirl vane and the pressure side of its nearest neighboring swirl vane. Furthermore, at least one swirl vane has a discharge flow angle between a tangent to its camber line at its trailing edge and the swirler axis that is monotonically increasing with increasing radial distance from the swirler axis. The invention also relates to a burner with such a swirler and a method of operating the burner.

Abstract translation: 特别是用于燃气轮机中氧化剂和燃料的预混合的轴向旋流器包括具有流线横截面的一系列旋流叶片。 每个旋流叶片具有前缘，后缘以及每个在前缘和后缘之间延伸的吸力侧和压力侧。 涡旋叶片围绕旋流器轴线布置，其中前缘基本上沿径向延伸。 流动槽形成在每个涡流叶片的吸力侧和其最近的相邻旋流叶片的压力侧之间。 此外，至少一个旋流叶片具有在其后缘处的其弯曲线的切线与旋流器轴线之间的排出流动角度，该旋流器轴线随着距旋流器轴线的径向距离的增加而单调增加。 本发明还涉及具有这种旋流器的燃烧器和操作燃烧器的方法。

公开(公告)号：US20140013764A1

公开(公告)日：2014-01-16

申请号：US13937482

申请日：2013-07-09

Applicant: ALSTOM Technology Ltd

Inventor： Fernando BIAGIOLI ,  Naresh ALURI ,  Madhavan Narasimhan POYYAPAKKAM ,  Jan CERNY

IPC: F23R3/14

CPC classification number: F23R3/14 ,  F23C7/004 ,  F23R3/286

Abstract: An axial swirler for a gas turbine burner includes a vane ring with a plurality of swirler vanes circumferentially distributed around a swirler axis. Each of the swirler vanes includes a trailing edge. In order to achieve a controlled distribution of the exit flow velocity profile and/or the fuel equivalence ratio in the radial direction. The trailing edge is discontinuous with the trailing edge having a discontinuity at a predetermined radius.

Abstract translation: 用于燃气涡轮燃烧器的轴向旋流器包括具有围绕旋流器轴线周向分布的多个旋流器叶片的叶片环。 每个旋流器叶片包括后缘。 为了实现径向方向上的出口流速分布和/或燃料当量比的受控分布。 后缘是不连续的，后缘具有预定半径的不连续性。