F - Mech Eng,Light,Heat,Weapons – 23 – R
Patent
F - Mech Eng,Light,Heat,Weapons
23
R
F23R 3/14 (2006.01) F23D 14/82 (2006.01) F23R 3/18 (2006.01) F23R 3/28 (2006.01) F23R 3/40 (2006.01)
Patent
CA 2375183
A structure is disclosed that will quench a flame front during a flashback event in a gas turbine while simultaneously providing a mixing function during normal operations. The device disclosed consists of two monoliths one upstream of the other. In the basis embodiment of the invention the downstream monolith (20) acts as a mixer while the combination of the upstream monolith (10) and the downstream monolith act as the flashback arrestor. Other embodiments of the device also allow the downstream monolith to be a flameholder. The upstream monolith (10) and the downstream monolith (20) have a plurality of channels (21, 23) defined by walls (41, 42) and are separately by a gap (16, 17). The downstream monolith (20) includes at least one channel (21) which has a spatial orientation whereby a swirl (135) is imparted to a fluid traversing there through.
L'invention concerne une structure permettant d'éteindre un front de flamme en cas de retour de flamme dans une turbine à gaz tout en assurant simultanément une fonction de mélange en cas de fonctionnement normal. Ce dispositif est constitué de deux blocs, dont l'un est disposé en amont par rapport à l'autre. Selon le mode de réalisation de base de l'invention, le bloc aval (20) fait office de mélangeur, tandis que la combinaison bloc amont (10) bloc aval sert de dispositif anti-retour de flamme. D'autres modes de réalisation du dispositif permettent également au bloc aval d'être un stabilisateur de flamme. Le bloc amont (10) et le bloc aval (20) comportent une pluralité de canaux (21, 23) définis par les parois (41, 42) et séparés par un espace (16, 17). Le bloc aval (20) comporte au moins un canal (21) qui, de par son orientation spatiale, permet d'imprimer un mouvement de tourbillon (135) à un fluide traversant ledit canal.
Berry Jonathan Dwight
Kraemer Gilbert O.
Precision Combustion Inc.
Sim & Mcburney
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