Combustor liner

Abstract

The invention is a combustor liner ( 12 ) of a dual wall cooling structure including an inner wall section ( 30 ) configured to surround a combustion region ( 13 ) and in which a plurality of effusion cooling holes ( 31 ) are formed, and an outer wall section ( 20 ) formed to be spaced apart from the inner wall section ( 30 ) and in which a plurality of impingement cooling holes ( 21 ) are formed, wherein the inner wall section ( 30 ) is constituted by a plurality of plate-shaped members ( 40 ), and a support guide member ( 50 ) is provided which is configured to guide the plurality of plate-shaped members ( 40 ) to enable free insertion and extraction and support the plurality of plate-shaped members ( 40 ) at intervals such that deformation by thermal expansion is able to be absorbed.

1 . A combustor liner of a dual wall cooling structure comprising:
 an inner wall section configured to surround a combustion region and in which a plurality of effusion cooling holes are formed; and   an outer wall section formed to be spaced apart from the inner wall section and in which a plurality of impingement cooling holes are formed,   wherein the inner wall section is constituted by a plurality of plate-shaped members, and   a support guide member is provided which is configured to guide the plurality of plate-shaped members to enable free insertion and extraction, and support the plurality of plate-shaped members at intervals such that deformation by thermal expansion is able to be absorbed.   
     
     
         2 . The combustor liner according to  claim 1 , wherein the support guide member has a rail member configured to guide both sides of the plate-shaped member. 
     
     
         3 . The combustor liner according to  claim 1 , having a positioning member configured to position the plate-shaped member supported by the support guide member with respect to the outer wall section. 
     
     
         4 . The combustor liner according to  claim 3 , wherein the positioning member has a movable member configured to hold a distance between the plate-shaped member and the outer wall section and movable with respect to the outer wall section in a thermal expansion direction of the plate-shaped member. 
     
     
         5 . The combustor liner according to  claim 4 , wherein the positioning member includes:
 the movable member; and   a fixing member configured to hold a distance between the plate-shaped member and the outer wall section and fixed with respect to the outer wall section.   
     
     
         6 . The combustor liner according to  claim 5 , wherein the fixing member is disposed at a central position of the plate-shaped member, and
 the movable members are disposed around the central position of the plate-shaped member.   
     
     
         7 . The combustor liner according to  claim 1 , wherein a plurality of fuel supply nozzles configured to supply fuel to the combustion region have an annular shape disposed in a circumferential direction at intervals, and
 the plurality of plate-shaped members supported by the support guide member are disposed at positions corresponding to the plurality of fuel supply nozzles disposed in the circumferential direction.   
     
     
         8 . The combustor liner according to  claim 1 , wherein a plurality of heat radiation pins protruding toward the outer wall section are formed at the plate-shaped member.