Intake arrangement in gas turbine power plant

Patent metadata

Field	Value
Publication number	US-9650956-B2
Application number	US-201414446652-A
Country	US
Kind code	B2
Filing date	Jul 30, 2014
Priority date	Aug 14, 2013
Publication date	May 16, 2017
Grant date	May 16, 2017

Abstract

An intake arrangement for a compressor in a gas turbine power plant includes at least a passageway having an elongated portion, and a circular portion at an end of the elongated portion. The circular portion may be arranged in proximity to the compressor at around a compressor inlet. The passageway may be divided at least circumferentially and radially across the entire elongated portion and at least partially across the circular portion to configure a plurality of flue gas and air inlet segments for respectively conveying flue gas and air streams therethrough. The flue and air gas streams from each of the respective plurality of flue gas and air inlet segments, converge to be blended into a target mass stream for being conveyed into the compressor.

First claim

What is claimed is:

1. An intake arrangement for a compressor in a gas turbine power plant, the intake arrangement, comprising:
a passageway having an elongated portion, and a circular portion at an end portion of the elongated portion, the circular portion being arranged in proximity to the compressor at a compressor inlet;
the passageway divided at least circumferentially and radially across the entire elongated portion and at least partially across the circular portion to configure,
a plurality of flue gas inlet segments, each adapted to convey a flue gas stream therethrough; and
a plurality of air inlet segments, each adapted to convey a fresh air stream therethrough,
wherein the flue gas stream and the fresh air stream from each of the respective plurality of flue gas and air inlet segments, converge at a region (P) around and after the circular portion, to be blended into a target mass stream for being conveyed into the compressor through the compressor inlet.

2. The intake arrangement as claimed in claim 1 , wherein the plurality of flue gas inlet segments and plurality of air inlet segments, are adapted to be partially configured across the circular portion such that the segments, in the circular portion extend up to a first portion, leaving a second portion.

3. The intake arrangement as claimed in claim 2 comprising:
a converging nozzle adapted to be disposed in coordination with the circular portion, more or less in the portion, wherein the converging nozzle converges towards the compressor inlet.

4. The intake arrangement as claimed in claim 2 , wherein the region (P) is an area extending from the second portion of the circular portion to up to the compressor inlet.

5. The intake arrangement as claimed in claim 1 , wherein the passageway is divided to configure alternating adjacent segments of one air inlet segment and one flue gas inlet segment to each other.

6. The intake arrangement as claimed in claim 1 , wherein each air inlet segment at an end portion of the elongated portion is adapted to be connected to a pipe to receive the fresh air.

7. The intake arrangement as claimed in claim 1 , wherein each flue gas inlet segment at an end portion of the elongated portion is adapted to be connected to a pipe to receive the flue gas.

8. The intake arrangement as claimed in claim 1 , comprising:
turbulator elements configured proximate to the circular portion to enhance the turbulence there across.

9. The intake arrangement as claimed in claim 1 , wherein the passageway is circumferentially divided into alternately arranged flue gas segments and air inlet segments.

10. The intake arrangement as claimed in claim 1 , wherein the passageway is radially divided into alternately arranged flue gas segments and air inlet segments.

Assignees

• Alstom Technology Ltd
• Ansaldo Energia Ip Uk Ltd

Inventors

• Benz Eribert
• Payne Robin

Classifications

• F02C7/08

  Heating air supply before combustion, e.g. by exhaust gases · CPC title

• F02C1/005

  being recirculated · CPC title

• B01F5/0082

  Operations & Transport · mapped topic

• B01F3/02

  Operations & Transport · mapped topic

• F05D2240/127

  Vortex generators, turbulators, or the like, for mixing · CPC title