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US 4,537,156 AGranted
Heat exchanger having a vertical gas flue
AssigneeSulzer Brothers Limited
InventorKarl Rees
Life of this patent
Estimating the term…
Abstract
The heat exchanger is constructed with a vertical gas flue and a hopper at the bottom end of the flue. The gas flue is shaped to have more than four sides. The hopper walls meet the wall-forming tubes of the gas flue around a boundary edge which extends over the entire periphery of the gas flue. All of the wall-forming tubes of the gas flue are bent at the boundary edge while the tubes in the walls of the hopper extend in parallel relationship to one another.
Claims11
A heat exchanger comprising
- a vertical gas flue having a plurality of vertically disposed sides defining at least a pentagonal cross-section, each said side including a plurality of interconnected medium-carrying wall-forming tubes extending longitudinally of said sides;
- a hopper below said gas flue having walls defining an outlet opening at a lower end, each said wall including a plurality of parallel interconnected medium-carrying wall-forming tubes;
- and
- each said tube of said hopper being connected to a respective tube of said gas flue along a boundary edge extending over the entire periphery of said gas flue with each tube of said gas flue being bent at said boundary edge.
1 more element
A heat exchanger comprising
- a vertical gas flue having a plurality of vertically disposed sides defining at least a pentagonal cross-section, each said side including a plurality of vertical interconnected medium-carrying tubes, and
- a hopper below and connected to said flue along a peripheral boundary edge, said hopper including a plurality of walls defining an oblong-shaped hopper outlet opening at a lower end, each said wall including a plurality of parallel interconnected medium-carrying tubes, each said hopper tube being connected to a respective flue tube to convey medium therebetween.
A heat exchanger comprising
- a vertical gas flue having a plurality of vertically disposed sides defining a hexagonal cross-section, each said side including a plurality of vertical interconnected medium-carrying tubes;
- a hopper connected to said flue and including a plurality of walls defining hexagonal frusto-pyramid shape with a hexagonal outlet opening at a lower end, each said wall including a plurality of parallel interconnected medium-carrying tubes;
- a plurality of intermediate headers, each said header being connected to said tubes of a respective side of said flue, and said tubes of a respective wall of said hopper, and
- a plurality of hopper headers, each said hopper header being connected to said tubes of two adjoining hopper walls adjacent an edge therebetween.
1 more element
Dependencies are inferred from the claim text.