F - Mech Eng,Light,Heat,Weapons – 28 – B
Patent
F - Mech Eng,Light,Heat,Weapons
28
B
122/140, 137/9
F28B 9/10 (2006.01)
Patent
CA 1191421
Abstract of the Disclosure A vent condenser that includes an inner tube, an outer shell mounted on and surrounding the inner tube, a middle shell having an annular body and a closed upper end mounted with the body thereof radially spaced between the inner tube and the outer shell, and a helical heat exchange tube mounted in the space between the inner tube and the middle shell in engagement with the body of the middle shell and with the inner tube. A helical channel is formed between the middle shell, the inner tube, and spaced convolutions of the helical tube. Cooling fluid is directed along the helical tube. Discharge from the deaerator vent passes up the inner tube to return along the helical channel to be cooled in indirect heat exchange relation with the cooling fluid in the helical tube to condense water therefrom and to separate the water from noncondensable gases. The noncondensable gases are directed through the space between the middle shell and the outer shell to reheat the noncondensable gases to a sufficient temperature that no substantial plume is formed when the noncondensable gases are discharged through the discharge fitting. - - - - - - - - - - This invention relates to a condenser for condensing vapor from a mixture of condensable and noncondensable gases. An object of this invention is to provide a simple condenser and heat exchanger structure that includes a minimum of parts which require fabrication. A further object of this invention is to provide a vent condenser for boiler deaerator vent for recovering heat ordinarily lost to the atmosphere by condensing steam present in the mixture of water vapor and noncondensable gases which issue from the boiler deaerator vent. A further object of this invention is to provide such a device in which both a coolant liquid and the vapor mixture follow elongated paths. A further object of this invention is to provide a condenser and heat exchanger structure of this type which not only condenses vapor from a deaerator vent stream but also reheats the noncondensable gases passing through a final passage - 1 -
454804
Gowling Lafleur Henderson Llp
Knox Arthur C. Jr.
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