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US 4,123,995 AGranted
Hot water or steam boiler
AssigneeOsby, Varme AB
InventorFinn U. Ek
Life of this patent
Estimating the term…
Abstract
Hot water or steam boiler comprising a furnace section and a convection section in which the furnace section is limited by a wall section formed of liquid or steam tubes placed side by side, while the convection section has a number of liquid or steam chambers communicating with said liquid or steam tubes, through the which chambers there run flue gas tubes communicating with said furnace section through flue gas chambers and sealed off from the fluid or steam chamber.
Claims8
A boiler for steam or hot water comprising:
- a furnace section having a chamber defined substantially in its entirety by top, bottom and sidewalls formed of closely arranged horizontally and vertically extending liquid or steam tubes respectively, said tubes thus being exposed to combustion radiation and flue gases within said chamber;
- a convection section positioned horizontally of said furnace section including at least one chamber for liquid or steam;
- connecting means for oeratively connecting said furnace and convection sections to permit the flow of liquid or steam between said tubes and said chamber;
- means for conducting flue gases from said furnace chamber to said convection section;
- and a plurality of flue gas tubes within said convection section arranged therewithin to conduct flue gases from said furnace chamber in a substantially U-shaped path through the liquid or steam chamber for heat exchange with the liquid or steam therewithin.
2 more elements
Dependencies are inferred from the claim text.