公开(公告)号：US09920628B2

公开(公告)日：2018-03-20

申请号：US14662531

申请日：2015-03-19

Applicant: ALSTOM Technology Ltd

Inventor： Timothy Stephen Rice

IPC: F01D5/10 ,  F01D5/30 ,  F01D5/06 ,  F01D25/04

CPC classification number: F01D5/10 ,  F01D5/06 ,  F01D5/30 ,  F01D25/04 ,  F05D2220/31 ,  F05D2240/24 ,  F05D2260/963

Abstract: A steam turbine with a resonance chamber in the outer annulus opposite a rotating blade row. The resonance chamber provides passive resonance to place the excitation at a frequency away from the natural frequency of the blades.

公开(公告)号：US09316107B2

公开(公告)日：2016-04-19

申请号：US13937635

申请日：2013-07-09

Applicant: ALSTOM Technology Ltd

Inventor： Benjamin Megerle ,  Ivan William McBean ,  Timothy Stephen Rice ,  Said Havakechian

IPC: F01D9/02 ,  F01D9/04 ,  F01D5/14

CPC classification number: F01D9/041 ,  F01D5/142 ,  F05D2220/31 ,  F05D2220/3215 ,  F05D2240/122 ,  F05D2260/961

Abstract: An axial flow turbine is described having a casing defining a flow path for a working fluid therein, a rotor co-axial to the casing, a plurality of stages, each including a stationary row of vanes circumferentially mounted on the casing a rotating row blades, circumferentially mounted on the rotor, with within a stage n vanes have an extension such that at least a part of the trailing edge of each of the n vanes reaches into the annular space defined by the trailing edges of the remaining N-n vanes and the leading edges of rotating blades of the same stage.

Abstract translation: 描述了一种轴流涡轮机，其具有限定其中的工作流体的流动路径的壳体，与壳体同轴的转子，多个级，每个级包括周向地安装在壳体上的旋转行叶片的静止叶片， 周向地安装在转子上，在一个阶段中，n个叶片具有延伸部，使得每个n个叶片的后缘的至少一部分到达由剩余的Nn叶片的后缘限定的环形空间中，并且前缘 的相同阶段的旋转叶片。

公开(公告)号：US20140369815A1

公开(公告)日：2014-12-18

申请号：US14305316

申请日：2014-06-16

Applicant: ALSTOM Technology Ltd

Inventor： Brian Robert HALLER ,  Timothy Stephen Rice

IPC: F01D5/10

CPC classification number: F01D5/10 ,  F01D5/00 ,  F01D5/16 ,  F01D9/04 ,  F01D11/10 ,  F01D19/00 ,  F01D21/003 ,  F01D25/04 ,  F01D25/06 ,  F01D25/24

Abstract: Configuration of the last stage of a steam turbine where rotor blades rotate encircled by a vane carrier, such that a plurality of passages are located in the vane carrier, such that a fluid is blown through these passages forming a flow that impinges onto the rotor blades, the number of passages, the location of the passages in the vane carrier and the velocity of the flow impinging onto the rotor blades, being calculated in such a way that rotating flow instabilities in the rotor blades when the steam turbine operates at low volumetric flow conditions are avoided.

Abstract translation: 涡轮机的最后阶段的构造，其中转子叶片由叶片载体旋转，使得多个通道位于叶片载体中，使得流体通过这些通道吹动，形成撞击到转子叶片上的流动 通道的数量，叶片载体中的通道的位置和撞击到转子叶片上的流速的速度是这样计算的，即当蒸汽轮机在低体积流动下运行时，转子叶片中的旋转流动不稳定 避免了条件。