Double walled smokestack apparatus

Details Double walled smokestack apparatus Double walled smokestack apparatus

E - Fixed Constructions

04

H

20/103

E04H 12/28 (2006.01) F23J 13/02 (2006.01)

Patent

CA 1073631

DOUBLE WALLED SMOKESTACK APPARATUS Abstract of the Disclosure Double walled smokestack apparatus is provided in accordance with the teachings of the instant invention having sub- stantially independent, load bearing inner and outer portions which are concentrically disposed to form a thermally insulating air space therebetween. This is achieved according to an exemplary embodi- ment by providing breeching and top cap arrangements intermediate the inner and outer portions which are configured in such manner to accommodate differential thermal expansion between the inner and outer portions without an attendant coupling of load. In addition, the inner and outer portions are fixedly interconnected proximate a mount- ing pad location where the moment of force of the inner shell is sub- stantially zero. -i-

295709

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