F - Mech Eng,Light,Heat,Weapons – 22 – B
Patent
F - Mech Eng,Light,Heat,Weapons
22
B
122/94
F22B 37/20 (2006.01) F22B 37/14 (2006.01)
Patent
CA 1247949
ABSTRACT OF THE DISCLOSURE The invention relates to a vertical gas flue for a heat exchanger of the type having a hopper at the bottom end. The gas flue is defined by interconnected medium-carrying wall-forming gas flue tubes extending substantially longitudinally of the flue. The hopper is also defined by interconnected medium-carrying and wall-forming hopper tubes. The inclined hopper walls meet wall-forming tubes of the gas flue along a boundary edge near the top of the walls. The tubes of the hopper walls are connected with gas flue tubes on the medium side. In accordance with the invention, the gas flue has at least a pentagonal or cylindrical cross-section, the boundary edge extending over the entire periphery of the gas flue. All the wall-forming tubes of the gas flue are bent at the boundary edge, such that they are directed outwardly from the gas flue wall, in the case of at least some of the tubes. The tubes run parallel with each other within the hopper wall. The advance in the art is that the invention allows application of the gas flue of the type mentioned above in a simple and inexpensive manner.
458157
Gowling Lafleur Henderson Llp
Sulzer Brothers Limited
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