Combustion chamber of a gas turbine with pre-mixing and pre-evaporation elements
AssigneeBBC Brown, Boveri & Company, Limited
InventorsEduard Bruhwiler, Hans Koch
Life of this patent
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Abstract
A combustion chamber for a gas turbine which is equipped with a number of tubular-shaped elements, within which there occurs between the fuel and the compressed air a pre-mixing/pre-evaporation process. Each tubular element is closed at its end at the side of its combustion space by a flame baffle provided with one or a number of openings, so that the combustion first can occur downstream of the flame baffle, whereby there is appreciably reduced the emissivity of noxious substances from the combustion process.
Claims15
A combustion compartment for a gas turbine comprising:
- (a) a combustion compartment casing containing therein an air distributor chamber and a combustion chamber spatially separated from one another;
- (b) a number of substantially tubular-shaped elements arranged between the air distribution chamber and the combustion chamber;
- (c) nozzle means for infeeding a combustible medium to an end of said tubular-shaped elements located at the side of the air distributor chamber;
- (d) the admixing and pre-evaporation of said combustible medium occurring within said plurality of tubular-shaped elements;
- (e) each said tubular-shaped element having an end located at the side of the combustion chamber;
- (f) at least one flame baffle for closing the end of the tubular-shaped elements located at the side of the combustion chamber, said flame baffle being provided with openings;
- (g) at least one pilot element located between said tubular-shaped elements;
- and
- (h) said combustible medium comprises fuel oil which is infed by said nozzle means and which is premixed and pre-evaporated within said tubular-shaped elements and admixed with compressed air with a large excess-air coefficient.
A combustion compartment for a gas turbine comprising:
- (a) a combustion compartment casing containing therein an air distributor chamber and a combustion chamber spatially separated from one another;
- (b) a number of substantially tubular-shaped elements arranged between the air distribution chamber and the combustion chamber;
- (c) nozzle means for infeeding a combustible medium to an end of said tubular-shaped elements located at the side of the air distributor chamber;
- (d) the admixing of said combustible medium occurring within said plurality of tubular-shaped elements;
- (e) each said tubular-shaped element having an end located at the side of the combustion chamber;
- (f) at least one flame baffle for closing the end of the tubular-shaped elements located at the side of the combustion chamber, said flame baffle being provided with openings;
- (g) at least one pilot element located between said tubular-shaped elements;
- and
- (h) said combustible medium comprises a fuel gas which is infed by said nozzle means and which is admixed with compressed air within said tubular-shaped elements with a large excess-air coefficient.
Dependencies are inferred from the claim text.