Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
208 words
In a continuous-flow boiler having a two-section contruction with gas-tightly welded walls and having a structure forming a combustion-chamber nose disposed beneath a horizontal section connecting both sections of the two-section boiler and including combustion chamber walls formed of a helical winding made up of wound parallel tubes which terminate in transition headers located externally to the combustion chamber walls at a point of transition of the tubes into vertical-tube walls extending upwardly from the helical winding, the combustion-chamber nose having a forward edge and an upper nose incline extending for a given distance along the top of the helical winding toward a front wall of the combustion chamber walls, two of the transition headers being disposed respectively adjacent lateral walls of the combustion chamber and extending from the front wall and terminating at the forward edge of the combustion-chamber nose, the tubes of the helical winding, in the region of the nose, being bent upwardly unwelded, auxiliary headers being disposed in step-wise offset relationship to one another below the nose incline, and the upwardly bent tubes of the helical winding being connected to said auxiliary headers, the lateral walls of the combustion chamber above the nose incline being formed of tubes extending upwardly from said auxiliary headers.
Claim 2
Dependent Claim
208 words
In a continuous-flow boiler having a two-section contruction with gas-tightly welded walls and having a structure forming a combustion-chamber nose disposed beneath a horizontal section connecting both sections of the two-section boiler and including combustion chamber walls formed of a helical winding made up of wound parallel tubes which terminate in transition headers located externally to the combustion chamber walls at a point of transition of the tubes into vertical-tube walls extending upwardly from the helical winding, the combustion-chamber nose having a forward edge and an upper nose incline extending for a given distance along the top of the helical winding toward a front wall of the combustion chamber walls, two of the transition headers being disposed respectively adjacent lateral walls of the combustion chamber and extending from the front wall and terminating at the forward edge of the combustion-chamber nose, the tubes of the helical winding, in the region of the nose, being bent upwardly unwelded, auxiliary headers being disposed in step-wise offset relationship to one another below the nose incline, and the upwardly bent tubes of the helical winding being connected to said auxiliary headers, the lateral walls of the combustion chamber above the nose incline being formed of tubes extending upwardly from said auxiliary headers.
Claim 3
Dependent Claim
114 words
Structure according to claim 1 wherein the combustion chamber has a rear wall and one of the transition headers is disposed adjacent to the rear wall, and including mutually spaced-apart outlet tubes extending from said transition header adjacent the rear wall and through the horizontal section and serving as support elements for the rear wall, at least one further header disposed externally to and above the combustion chamber and being connected to said outlet tubes, and horizontally disposed connecting tubes connecting the transition header adjacent the rear wall to one of the transition headers that is located adjacent the front wall and to the transition headers adjacent the lateral walls of the combustion chamber.
Claim 4
Dependent Claim
94 words
Structure according to claim 2 including a horizontal header and intermediate section headers located between the two sections of the boiler, said intermediate section headers being located outside the combustion chamber and having tubes extending therefrom forming at least part of the lateral walls of the horizontal section, downcomers connecting said at least one further header above the combustion chamber to said horizontal header, and outlet tubes extending from said horizontal header and forming in part the tubes of the combustion chamber nose and in part extending and connected to said intermediate section headers.