Turbine casing having reinforcement elements in the containment area

Abstract

A turbine casing ( 100 ) for a gas turbine, having a casing section ( 5 a, 5 b, 5 c, 5 d, 5 e ), the casing section ( 5 a, 5 b, 5 c, 5 d, 5 e ) having a containment section ( 16 ) for containing blade fragments expelled radially outward. The casing section ( 5 a, 5 b, 5 c, 5 d, 5 e ) has a first reinforcing element ( 1 a , 1 b , 1 c , 1 d , 1 e ) which is joined in face-to-face contact with the radially inner and/or outer surface of the casing section ( 5 a, 5 b, 5 c, 5 d, 5 e ).

What is claimed is: 
     
         1 . A turbine casing for a gas turbine, the turbine casing comprising:
 a casing section having a containment section for containing blade fragments expelled radially outward, the casing section having a first reinforcing element, and wherein the first reinforcing element is joined in face-to-face contact with a radially inner or outer surface of the casing section.   
     
     
         2 . The turbine casing as recited in  claim 1  wherein a second reinforcing element is joined face-to-face with the first reinforcing element or face-to-face with the radially inner or outer surface of the casing section. 
     
     
         3 . The turbine casing as recited in  claim 2  wherein a third reinforcing element is joined face-to-face with the second reinforcing element. 
     
     
         4 . The turbine casing as recited in  claim 3  wherein the casing section has at least one further reinforcing element. 
     
     
         5 . The turbine casing as recited in  claim 1  wherein the casing section is a low pressure turbine casing section. 
     
     
         6 . The turbine casing as recited in  claim 1  wherein the first reinforcing element is configured annularly in the circumferential direction of the casing section. 
     
     
         7 . The turbine casing as recited in  claim 1  wherein the characteristic parameter AN 2  of the gas turbine has a value greater than 8000 (m/s) 2  with respect to a cross section in the flow direction of the casing section. 
     
     
         8 . The turbine casing as recited in  claim 1  wherein the first reinforcing element has a wound band or is made of a wound band. 
     
     
         9 . The turbine casing as recited in  claim 8  wherein the wound band is or has a metal band or a fabric band. 
     
     
         10 . The turbine casing as recited in  claim 1  wherein the first reinforcing element has one or more wire layers or is made of wire layers. 
     
     
         11 . The turbine casing as recited in  claim 1  wherein a second reinforcing element is arranged relative to the first reinforcing element such that the first and second reinforcing elements are stacked one on top of the other, or at least in partially overlapping relation to each other, in a radial direction. 
     
     
         12 . The turbine casing as recited in  claim 1  wherein a second reinforcing element is in contact with the first reinforcing element. 
     
     
         13 . The turbine casing as recited in  claim 1  wherein a second reinforcing element is fixed with respect to the first reinforcing element or with the casing section by interlocking fit. 
     
     
         14 . The turbine casing as recited in  claim 1  wherein the second reinforcing element is fixed with respect to the first reinforcing element or with the casing section by or tack welding. 
     
     
         15 . The turbine casing as recited in  claim 1  wherein one or more of additional gas turbine components are configured to be joinable with the turbine casing via the first reinforcing element.