Combustion chamber of a gas turbine

Abstract

A combustion chamber of a gas turbine, with at least one shingle that including a plate-shaped shingle body that has a circumferential shingle edge which is raised from the side that is facing away from the combustion chamber interior space, and which abuts against a combustion chamber wall in the mounted state of the shingle, wherein the shingle body is provided with an arrangement of effusion cooling holes, and the combustion chamber wall is provided with an arrangement of impingement cooling holes in the area of the shingle, wherein the arrangement of impingement cooling holes has a lateral distance to the shingle edge that is between 1.5 and 2 times the distance of the surface of the combustion chamber wall to the surface of the shingle body, and that the distance of the arrangement of impingement cooling holes is between 1.1 and 3 times the lateral distance in the corner areas of the shingle.

1 . A chamber of a gas turbine, with at least one shingle that comprises a plate-shaped shingle body having a circumferential shingle edge which is raised from the side that is facing away from the combustion chamber interior space, and which abuts against a combustion chamber wall in the mounted state of the shingle, wherein the shingle body is provided with an arrangement of effusion cooling holes, and the combustion chamber wall is provided with an arrangement of impingement cooling holes in the area of the shingle, wherein the arrangement of impingement cooling holes has a lateral distance to the shingle edge which is between 1.5 and 2 times the distance of the surface of the combustion chamber wall to the surface of the shingle body, and in that the distance of the arrangement of impingement cooling holes is between 1.1 and 3 of the lateral distance in the corner areas of the shingle. 
     
     
         2 . The combustion chamber according to  claim 1 , wherein the distance in the corner areas is between 1.5 and 2.5 of the distance. 
     
     
         3 . The combustion chamber according to  claim 1 , wherein the corner area of the arrangement of impingement cooling holes is embodied in a linear manner. 
     
     
         4 . The combustion chamber according to  claim 1 , wherein the corner area of the arrangement of impingement cooling holes is embodied in a rounded-off manner. 
     
     
         5 . The combustion chamber according to  claim 1 , wherein the arrangement of effusion cooling holes comprises the entire shingle body. 
     
     
         6 . The combustion chamber according to  claim 5 , wherein effusion cooling holes are arranged inside the distance (A). 
     
     
         7 . The combustion chamber according to  claim 5 , wherein the ratio of the number of impingement cooling holes to the number of effusion cooling holes is 1:1 to 1:3. 
     
     
         8 . The combustion chamber according to  claim 7 , wherein respectively at least one row of effusion cooling holes is arranged inside the distance, wherein the number of rows of effusion cooling holes inside the distance corresponds to the ratio of the number of impingement cooling holes to the number of effusion cooling holes.