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1. WO2018144008 - COMBUSTOR WITH THREE-DIMENSIONAL LATTICE PREMIXER

Publication Number WO/2018/144008
Publication Date 09.08.2018
International Application No. PCT/US2017/016420
International Filing Date 03.02.2017
IPC
F23R 3/00 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
RGENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
3Continuous combustion chambers using liquid or gaseous fuel
CPC
F23R 2900/03044
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
RGENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
2900Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
03044Impingement cooled combustion chamber walls or subassemblies
F23R 2900/03342
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
RGENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
2900Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
03342Arrangement of silo-type combustion chambers
F23R 2900/03343
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
RGENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
2900Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
03343Pilot burners operating in premixed mode
F23R 3/002
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
RGENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
3Continuous combustion chambers using liquid or gaseous fuel
002Wall structures
F23R 3/005
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
RGENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
3Continuous combustion chambers using liquid or gaseous fuel
005Combined with pressure or heat exchangers
Applicants
  • SIEMENS AKTIENGESELLSCHAFT [DE]/[DE]
Inventors
  • BOURQUE, Gilles
Agents
  • SARTOR, William David
Priority Data
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) COMBUSTOR WITH THREE-DIMENSIONAL LATTICE PREMIXER
(FR) CHAMBRE DE COMBUSTION AVEC PRÉ-MÉLANGEUR EN TREILLIS TRIDIMENSIONNEL
Abstract
(EN) A combustor for a combustion turbine engine incorporates a fuel and air premixer, embodiments of which locally vary structure of one or more of air ducts, fuel delivery passages, fuel and air mixing ducts, and/or fuel and air discharge ducts, in order to normalize fuel-air ratio at any location about the premixer's three-dimensional volume, or in the combustion chamber, during steady-state operating conditions, and/or in order to stabilize fluctuations in compressed air supply to the premixer, and/or in order to stabilize fluctuations in combustion gas back pressure upstream into the premixer, or within the combustion chamber. The premixer is a monolithic, three-dimensional lattice structure of selectively oriented, asymmetrical- and serpentine-shaped metallic webs. The web structure defines locally varying passages, which form: the aforementioned air ducts and passages. In some embodiments, the premixer, or a casting mold for the premixer is formed by additive manufacture.
(FR) Chambre de combustion pour un moteur à turbine à combustion comprenant un pré-mélangeur de carburant et d'air, dont les modes de réalisation font varier localement la structure d'un ou de plusieurs de conduits d'air, de passages de distribution de carburant, de conduits de mélange de carburant et d'air, et/ou de conduits d'évacuation de carburant et d'air, afin de normaliser le rapport air-air à n'importe quel emplacement autour du volume tridimensionnel du pré-mélangeur, ou dans la chambre de combustion, pendant des conditions de fonctionnement à régime permanent, et/ou afin de stabiliser les fluctuations de l'alimentation en air comprimé vers le pré-mélangeur, et/ou afin de stabiliser les fluctuations de la contre-pression de gaz de combustion en amont dans le pré-mélangeur, ou dans la chambre de combustion. Le pré-mélangeur est une structure en treillis tridimensionnel monolithique de bandes métalliques orientées de manière sélective, asymétriques et en forme de serpentin. La structure de bande délimite des passages localement variables, qui forment : les passages et conduits d'air précités. Selon certains modes de réalisation, le pré-mélangeur, ou un moule de coulée pour le pré-mélangeur, est formé par fabrication additive.
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