US 9,810,434 B2
Transition duct system with arcuate ceramic liner for delivering hot-temperature gases in a combustion turbine engine
David J. Wiebe, Orlando, FL (US)
Assigned to SIEMENS ENERGY, INC., Orlando, FL (US)
Filed by Siemens Energy, Inc., Orlando, FL (US)
Filed on Jan. 21, 2016, as Appl. No. 15/2,437.
Prior Publication US 2017/0211811 A1, Jul. 27, 2017
Int. Cl. F23R 3/00 (2006.01); F23R 3/46 (2006.01); F23R 3/50 (2006.01); F01D 9/02 (2006.01); F23R 3/42 (2006.01)
CPC F23R 3/425 (2013.01) [F01D 9/023 (2013.01); F23R 3/002 (2013.01); F23R 3/005 (2013.01); F23R 3/007 (2013.01); F05D 2260/232 (2013.01); F05D 2300/20 (2013.01); F05D 2300/6033 (2013.01); F23R 3/46 (2013.01); F23R 3/50 (2013.01); F23R 2900/03044 (2013.01)] 14 Claims
OG exemplary drawing
 
1. Apparatus for delivering hot-temperature gasses from a plurality of combustors in a combustion turbine engine to a first row of turbine blades in the combustion turbine engine, the apparatus comprising:
an exit piece for each one of the plurality of combustors, wherein the exit piece comprises an arcuate connection segment defining an arcuate flow path, wherein the arcuate connection segment forms an open perimeter, wherein the exit piece connects to an adjacent exit piece at the arcuate connection segment of the adjacent exit piece, and the connection of the exit piece and the adjacent exit piece defines a portion of an annular chamber, the annular chamber arranged to extend circumferentially and oriented concentric to a longitudinal axis of the combustion turbine engine, for delivering the hot-temperature gasses to the first row of blades, the exit piece comprising:
a metal outer shell and an arcuate ceramic liner inwardly disposed onto the metal outer shell along the arcuate connection segment of the exit piece, wherein the arcuate ceramic liner forms an open liner perimeter in correspondence with the open perimeter of the arcuate connection segment of the exit piece;
retainer structures disposed in the arcuate connecting segment of the exit piece to retain respective edges of the open liner perimeter in the arcuate connecting segment of the exit piece, wherein the retainer structures are disposed at the respective edges of the open perimeter of the arcuate connection segment of the exit piece, wherein the retainer structure comprises a body comprising a first flange and a second flange interconnected by a web, the body circumferentially extending in the arcuate connection segment of the exit piece, wherein the first flange and the second flange interconnected by the web define a groove configured to receive a corresponding ceramic liner protrusion at the respective edge of the open liner perimeter in the arcuate connection segment of the exit piece, the ceramic liner protrusion constituting a free end of the arcuate ceramic liner;
wherein the exit piece further comprises a straight path segment defining a straight flow path for passing hot-temperature gasses from a respective combustor of the plurality of combustors,
a straight ceramic liner inwardly disposed onto the metal outer shell along the straight path segment of the exit piece, wherein the straight ceramic liner forms a closed liner perimeter and an open liner perimeter respectively in correspondence with the closed perimeter and the open perimeter of the straight path segment of the exit piece,
wherein the straight path segment forms a closed perimeter starting at an inlet end of the straight path segment, wherein the closed perimeter of the straight path segment of the exit piece changes to an open perimeter that is in fluid communication with the portion of the annular chamber along a common plane between a convergence flow junction (CFJ) and an outlet end of the straight path segment,
wherein the arcuate flow path and the straight flow path constitute individual flow paths that mutually converge at the convergence flow junction.