公开(公告)号：US09765629B2

公开(公告)日：2017-09-19

申请号：US14031660

申请日：2013-09-19

Applicant: ALSTOM Technology Ltd

Inventor： Sascha Justl ,  Carlos Simon-Delgado ,  Axel Heidecke ,  Sven Olmes

IPC: F01D5/08 ,  F01D5/18 ,  F01D5/22 ,  F01D11/10

CPC classification number: F01D5/186 ,  F01D5/08 ,  F01D5/187 ,  F01D5/225 ,  F01D11/10

Abstract: A method and a cooling system for cooling blades of at least one blade row in a rotary flow machine includes an axial flow channel which is radially limited on the inside by a rotor unit and at the outside by at least one stationary component, the blades are arranged at the rotary unit and provide a shrouded blade tip facing radially to said stationary component. Pressurized cooling air is fed through from radially outside towards the tip of each of said blades in the at least one blade row, and the pressurized cooling air enters the blades through at least one opening at the shrouded blades' tip.

公开(公告)号：US20140086743A1

公开(公告)日：2014-03-27

申请号：US14031660

申请日：2013-09-19

Applicant: ALSTOM Technology Ltd

Inventor： Sascha JUSTL ,  Carlos Simon-Delgado ,  Axel Heidecke ,  Sven Olmes

IPC: F01D5/18

CPC classification number: F01D5/186 ,  F01D5/08 ,  F01D5/187 ,  F01D5/225 ,  F01D11/10

Abstract: A method and a cooling system for cooling blades of at least one blade row in a rotary flow machine includes an axial flow channel which is radially limited on the inside by a rotor unit and at the outside by at least one stationary component, the blades are arranged at the rotary unit and provide a shrouded blade tip facing radially to said stationary component. Pressurized cooling air is fed through from radially outside towards the tip of each of said blades in the at least one blade row, and the pressurized cooling air enters the blades through at least one opening at the shrouded blades' tip.

Abstract translation: 用于在旋转流动机械中至少一个叶片排的叶片的冷却方法和冷却系统包括轴向流动通道，该轴向流动通道由转子单元在内部径向限制，并且在外部由至少一个固定部件限定，叶片是 布置在所述旋转单元处并且提供面向所述静止部件的径向的被覆盖的叶片尖端。 加压冷却空气从至少一个叶片排中的径向外侧向每个所述叶片的顶端供给，并且加压冷却空气通过所覆盖的叶片尖端处的至少一个开口进入叶片。

公开(公告)号：US09482094B2

公开(公告)日：2016-11-01

申请号：US14061018

申请日：2013-10-23

Applicant: ALSTOM Technology Ltd

Inventor： Sascha Justl ,  Carlos Simon-Delgado ,  Thomas Zierer ,  Sven Olmes

IPC: F01D5/08 ,  F01D5/18

CPC classification number: F01D5/081 ,  F01D5/082 ,  F01D5/187 ,  F05B2240/801

Abstract: A gas turbine includes a rotor concentrically surrounded by a casing, with an annular hot gas channel axially extending between the rotor and the casing. The rotor includes a plurality of blades arranged annularly on the rotor. Each of the blades is mounted with a root in a respective axial slot on a rim of the rotor radially extending with an airfoil into the hot gas channel and adjoining with an axially oriented root surface to an annular rim cavity. A cooling device is provided at the root of each blade to receive cooling air injected into the rim cavity through stationary injectors. An optimized cooling is achieved by providing an essentially plane root surface and the cooling device includes a scoop for capturing and redirecting at least part of the injected cooling air, which scoop is a recess with respect to the root surface.

Abstract translation: 燃气轮机包括同轴地由壳体包围的转子，其中环形热气通道在转子和壳体之间轴向延伸。 转子包括环形地设置在转子上的多个叶片。 每个叶片安装有一个根部，位于转子边缘上的相应的轴向槽中，其径向延伸，翼型进入热气通道并与轴向定向的根表面邻接到环形边缘空腔。 冷却装置设置在每个叶片的根部处以接收通过固定喷射器注入到轮辋腔中的冷却空气。 通过提供基本上平面的根表面来实现优化的冷却，并且冷却装置包括用于捕获和重定向至少部分喷射的冷却空气的铲斗，该铲斗是相对于根表面的凹部。