Combustion Chamber Housing and Gas Turbine Equipped Therewith

Abstract

Combustion chamber housing ( 10 ) and gas turbine ( 1 ) outfitted therewith. The combustion chamber housing has a flame tube ( 20 ) and a casing tube ( 30 ) which surrounds the flame tube and which has a plurality of openings ( 31 ) in its wall through which air outwardly streaming upon the casing tube can penetrate radially into an intermediate space ( 40 ) formed between the casing tube and flame tube. The invention ensures a more uniform distribution of the in-flowing air around the flame tube. This is achieved inter alia in that a plurality of guide ribs ( 50 ) are provided which are arranged in the intermediate space so as to be distributed around the circumference of the two tubes and which extend in each instance radially between the casing tube and flame tube and parallel to a longitudinal direction (LR) of the two tubes so that the intermediate space is divided by the guide ribs into a plurality of longitudinal channels ( 41 ).

1 - 10 . (canceled) 
     
     
         11 . A combustion chamber housing ( 10 ) of a gas turbine ( 1 ), the combustion chamber housing ( 10 ) comprising:
 a flame tube ( 20 );   a casing tube ( 30 ) surrounding the flame tube ( 20 ), the casing tube having a wall and a plurality of openings ( 31 ) in the wall through which air outwardly streaming upon the casing tube ( 30 ) can penetrate radially into an intermediate space ( 40 ) formed between the casing tube ( 30 ) and the flame tube ( 20 ); and   a plurality of flow guide ribs ( 50 ) arranged in the intermediate space ( 40 ) so as to be distributed around the circumference of the flame tube ( 20 ) and the casing tube ( 30 ), the plurality of flow guide ribs ( 50 ) arranged radially between the casing tube ( 30 ) and flame tube ( 20 ), and each of the plurality of flow guide ribs ( 50 ) extending parallel to a longitudinal direction (LR) of the casing tube ( 30 ) and flame tube ( 20 ), such that the plurality of flow guide ribs ( 50 ) are welded to the casing tube ( 30 ),   wherein a gap (S) is formed relative to the flame tube ( 20 ) at least in an idle condition of the gas turbine ( 1 ) so that the intermediate space ( 40 ) is divided by the flow guide ribs ( 50 ) into a plurality of longitudinal channels ( 41 ).   
     
     
         12 . The combustion chamber housing ( 10 ) according to  claim 11 , wherein the flow guide ribs ( 50 ) are strip-shaped. 
     
     
         13 . The combustion chamber housing ( 10 ) according to  claim 12 , wherein the flow guide ribs ( 50 ) have a thickness of 3 mm. 
     
     
         14 . The combustion chamber housing ( 10 ) according to  claim 11 , wherein the flow guide ribs ( 50 ) and the openings ( 31 ) formed in the wall of the casing tube ( 30 ) are arranged such that the flow guide ribs ( 50 ) do not close any of the openings ( 31 ). 
     
     
         15 . The combustion chamber housing ( 10 ) according to  claim 11 , wherein the plurality of flow guide ribs ( 50 ) consists of eight identical flow guide ribs ( 50 ). 
     
     
         16 . The combustion chamber housing ( 10 ) according to  claim 11 , wherein the flow guide ribs ( 50 ) are arranged at different circumferential angular distances from one another in the intermediate space ( 40 ). 
     
     
         17 . The combustion chamber housing ( 10 ) according to  claim 11 , wherein the flow guide ribs ( 50 ) have a first group of flow guide ribs ( 50 ) and a second group of flow guide ribs ( 50 ), wherein the first group of flow guide ribs ( 50 ) is arranged with respect to their mutual circumferential angular distance in a predetermined first arrangement pattern, and wherein the second group of flow guide ribs ( 50 ) is arranged with respect to their mutual circumferential angular distance in a second arrangement pattern which mirrors the first arrangement pattern in relation to an axis of symmetry (Y) of the flame tube ( 20 ). 
     
     
         18 . A gas turbine ( 1 ) with a combustion chamber housing ( 10 ) according to  claim 11 .