公开(公告)号：US11174784B2

公开(公告)日：2021-11-16

申请号：US15858295

申请日：2017-12-29

Applicant: ANSALDO ENERGIA SWITZERLAND AG

Inventor： Jaan Hellat ,  Eribert Benz ,  Frank Graf ,  Torsten Wind ,  Felix Guethe ,  Klaus Doebbeling

IPC: F02C3/30 ,  F01D5/14 ,  F02C3/34 ,  F02C6/00 ,  F02C6/08 ,  F02C6/18 ,  F02C7/04 ,  F02C3/06

Abstract: An exemplary gas turbine power plant includes a gas turbine with a compressor having a compressor inlet. A combustion chamber follows the compressor and a turbine follows the combustion chamber. A cross section of the compressor inlet includes an inner sector and an outer sector in relation to the axis of rotation of the compressor. A plurality of feed ducts introduces oxygen-reduced gas into the inner sector of the compressor inlet. The plurality of feed ducts is arranged in the compressor inlet so as to be distributed in a circumferential direction on a circle concentrically with respect to the axis of the gas turbine.

公开(公告)号：US10920670B2

公开(公告)日：2021-02-16

申请号：US15727328

申请日：2017-10-06

Applicant: ANSALDO ENERGIA SWITZERLAND AG

Inventor： Marcos Escudero Olano ,  Stephan Strueken ,  Thomas Zierer ,  Frank Graf ,  Adnan Eroglu ,  Joshua R. McNally ,  Stephen W. Jorgensen ,  Afzal Pasha Mohammed

IPC: F02C7/28 ,  F01D11/00 ,  F01D9/02 ,  F16J15/46 ,  F01D9/04 ,  F16J15/06 ,  F02C3/04

Abstract: A sealing arrangement at an interface between a combustor and a turbine of a gas turbine. The turbine can include deflecting vanes at its inlet, which deflecting vanes are each mounted within the turbine so as to define an inner or outer diameter platform and are in sealing engagement via an inner or outer diameter vane tooth with a seal arranged at the corresponding inner or outer diameter part of the outlet of the combustor. The seal is movable and is pressed on the inner or outer diameter vane tooth by a differential pressure such that the pressure of the mainstream hot gas flow is a lower pressure.

公开(公告)号：US09856792B2

公开(公告)日：2018-01-02

申请号：US14467500

申请日：2014-08-25

Applicant: ANSALDO ENERGIA SWITZERLAND AG

Inventor： Jaan Hellat ,  Eribert Benz ,  Frank Graf ,  Torsten Wind ,  Felix Guethe ,  Klaus Doebbeling

IPC: F02C7/04 ,  F02C3/30 ,  F01D5/14 ,  F02C3/34 ,  F02C6/00 ,  F02C6/08 ,  F02C6/18 ,  F02C3/06

CPC classification number: F02C3/30 ,  F01D5/141 ,  F02C3/06 ,  F02C3/34 ,  F02C6/003 ,  F02C6/08 ,  F02C6/18 ,  F02C7/04

Abstract: The invention relates to a method for operating a gas turbine, in which an oxygen-reduced gas and fresh air are delivered to a compressor of the gas turbine in a radially staged manner, the fresh air being delivered via an outer sector of the inlet cross section in relation to the axis of rotation of the compressor, and the oxygen-reduced gas being delivered via an inner sector of the inlet cross section in relation to the axis of rotation of the compressor.The invention relates, further, to a gas turbine power plant with a gas turbine having a compressor inlet which is followed by the flow duct of the compressor and which is divided into an inner sector and an outer sector, a feed for an oxygen-reduced gas being connected to the inner sector of the compressor inlet, and a fresh air feed being connected to the outer sector of the compressor inlet.

公开(公告)号：US20180119612A1

公开(公告)日：2018-05-03

申请号：US15858295

申请日：2017-12-29

Applicant: ANSALDO ENERGIA SWITZERLAND AG

Inventor： Jaan HELLAT ,  Eribert Benz ,  Frank Graf ,  Torsten Wind ,  Felix Guethe ,  Klaus Doebbeling

IPC: F02C3/30 ,  F02C3/06 ,  F02C7/04 ,  F01D5/14 ,  F02C6/08 ,  F02C6/00 ,  F02C3/34 ,  F02C6/18

CPC classification number: F02C3/30 ,  F01D5/141 ,  F02C3/06 ,  F02C3/34 ,  F02C6/003 ,  F02C6/08 ,  F02C6/18 ,  F02C7/04

Abstract: An exemplary gas turbine power plant includes a gas turbine with a compressor having a compressor inlet. A combustion chamber follows the compressor and a turbine follows the combustion chamber. A cross section of the compressor inlet includes an inner sector and an outer sector in relation to the axis of rotation of the compressor. A plurality of feed ducts introduces oxygen-reduced gas into the inner sector of the compressor inlet. The plurality of feed ducts is arranged in the compressor inlet so as to be distributed in a circumferential direction on a circle concentrically with respect to the axis of the gas turbine.

公开(公告)号：US11629609B2

公开(公告)日：2023-04-18

申请号：US15081101

申请日：2016-03-25

Applicant: ANSALDO ENERGIA SWITZERLAND AG

Inventor： Frank Graf ,  Hans-Christian Mathews ,  Urs Benz ,  Fabien Fleuriot

IPC: F01D11/00 ,  F01D25/24 ,  F01D9/04 ,  F01D9/00 ,  F16J15/00 ,  F02C7/28 ,  F01D9/02 ,  F01D25/12

Abstract: The invention concerns a gas turbine having a picture frame, a first vane, and a sealing arrangement to seal a gap between the picture frame and the first vane, the sealing arrangement including two seals arranged in series between the picture frame and the first vane. In exemplary embodiments, one of the seals is a honeycomb seal, a dogbone seal, a hula seal or a piston seal and the other seal is a honeycomb seal, a dogbone seal, a hula seal or a piston seal. A method of supplying cooling fluid to the gap between the picture frame and the first vane is also disclosed.

公开(公告)号：US10590790B2

公开(公告)日：2020-03-17

申请号：US15081196

申请日：2016-03-25

Applicant: ANSALDO ENERGIA SWITZERLAND AG

Inventor： Hans-Christian Mathews ,  Urs Benz ,  Frank Graf

IPC: F01D11/00 ,  F01D25/12 ,  F23R3/60 ,  F01D9/02 ,  F02C7/28 ,  F01D9/04 ,  F23R3/00 ,  F16J15/06

Abstract: The invention concerns a conical hula seal wherein an inner part of the conical hula seal is closer to a conical hula seal longitudinal axis than an outer part of the conical hula seal, and wherein the conical hula seal extends in a circumferential direction relative to the conical hula seal longitudinal axis. A gas turbine which includes the conical hula seal is also disclosed, along with a method of operating a gas turbine which includes a conical hula seal that seals a gap between a first vane and a picture frame, the method including purging the gap with a cooling fluid.