F - Mech Eng,Light,Heat,Weapons – 23 – D
Patent
F - Mech Eng,Light,Heat,Weapons
23
D
257/26
F23D 11/44 (2006.01) F24H 1/00 (2006.01)
Patent
CA 1159048
Abstract of the Disclosure The invention provides a protective casing for a cube- shaped modular ceramic heat exchanger core, in which the core can easily be installed without danger of leakage between the fluid paths of the core, either while the device is new as its temperature changes, and subsequently as it is in use subjected to drastically altering operating temperature. Moreover, the core can easily be replaced by a core of different heat transfer ability without diminishing the ability to prevent such leakage. To this end the core rests in the casing with the edges of one face engaged with a suitable ceramic fibre composition gasket; the opposite face of the same flow path as engaged by another such gasket and the gasket is in turn engaged by a gasket compression member. The compression member is urged into this engagement by strong springs which thereby hold the gasket in the necessary sealing engagement. Preferably the body of the protective casing is of refractory material, and may be enclosed by a supplementary outer metal casing. The exchanger may be used as a heat reclaimer receiving through one path the outlet flue gas of a high temperature furnace, and through the other path the combustion air for the furnace hot air burner. Preferably the gasket compression member is located at the inlet for the combustion air, which is the coolest location. The invention also permits the production of an integral burner/ recuperator assembly without the need for heavily insulated connections as in the prior art.
406069
Brune Heinz
Hirons & Rogers
LandOfFree
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