Premixing nozzle, combustor,and gas turbine

Details Premixing nozzle, combustor,and gas turbine Premixing nozzle, combustor,and gas turbine

F - Mech Eng,Light,Heat,Weapons

23

R

F23R 3/28 (2006.01) F23R 3/14 (2006.01) F23R 3/32 (2006.01) F23R 3/34 (2006.01)

Patent

CA 2453532

A premixing nozzle includes swirler blades for agitating combustion air inside a nozzle body. Each one end of the swirler blades is fitted to the nozzle body, and the other end is connected to a hub, respectively. The tip portion of a fuel nozzle shaft is conical, and a part of the tip portion is arrange inside the hub. A combustion gas flows into the hub from a space between the tip portion of the fuel nozzle shaft and the upstream end of the hub, passes through between the tip portion and the inner peripheral surface of the hub, and flows toward the downstream of the hub.

L'invention concerne une buse de prémélange (800) comprenant une aube de turbulence (300) placée dans un tube de buse (10) afin de remuer l'air de combustion. Ladite aube de turbulence (300) est fixée au niveau de l'une de ses extrémités au tube de buse (10) et connectée au niveau de l'autre extrémité à un moyeu (100). L'extrémité avant (200a) d'un arbre de buse (200) de combustible est conique et une partie de cette extrémité (200a) est disposée dans le moyeu (100). L'air de combustion s'écoule dans le moyeu (200) de l'extrémité avant (200a) de l'arbre de buse (200) de combustible vers l'extrémité amont (100b) du moyeu (100), et passe entre l'extrémité avant (200a) et la surface périphérique intérieure du moyeu (100) afin de s'écouler vers l'aval dudit moyeu.

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