Bent-out wall in the region of a substantially rectangular burner opening

Abstract

Bent-out wall in the region of a substantially rectangular burner opening ( 2 ), wherein the bent-out wall ( 1 ) is formed by tube walls ( 3 ) and the tube walls ( 3 ) consist of tube-fin-tube combinations welded in a gastight manner and the tubes ( 5 ) thereof are flowed through by a cooling medium, wherein at least part of the bent-out wall ( 1 ) along the two longitudinal sides ( 7 ) of the rectangular burner opening ( 2 ) is formed by means of prefabricated tube wall segments ( 4 ) and wherein the prefabricated tube wall segments ( 4 ) are machine-welded in the planar state at the workshop and are subsequently bent at the workshop to a wall bending radius (R) of 70-140 mm and a wall bending angle (W) of 110°-150°.

1 . A bent-out wall in the region of a substantially rectangular burner opening, wherein the bent-out wall is formed by tube walls and the tube walls consist of tube-fin-tube combinations welded in a gastight manner and a cooling medium flows through the tubes thereof,
 wherein at least part of the bent-out wall is formed along the two longitudinal sides of the rectangular burner opening by means of prefabricated tube wall segments, and wherein the prefabricated tube wall segments are machine-welded in a planar state and subsequently bent to a wall bending radius (R) of 70 to 140 mm and a wall bending angle (W) of 110° to 150°.   
     
     
         2 . The bent-out wall in  claim 1 , Wherein the wall bending radius (R) is 100 mm. 
     
     
         3 . The bent-out wall in  claim 1 , Wherein the wall bending angle (W) is 135°. 
     
     
         4 . The bent-out wall in  claim 1 , Wherein the tube wall segments have a width of 500 to 1200 mm. 
     
     
         5 . The bent-out wall in  claim 1 , Wherein the tube walls comprise a diameter between 31.8 mm and 38 mm and a thickness between 4 mm and 7.1 mm. 
     
     
         6 . The bent-out wall in  claim 1 , wherein the fin comprises a width between 10 mm and 25 mm.