F - Mech Eng,Light,Heat,Weapons – 24 – C
Patent
F - Mech Eng,Light,Heat,Weapons
24
C
126/92
F24C 15/36 (2006.01) C10B 27/06 (2006.01)
Patent
CA 1178146
ABSTRACT OF THE DISCLOSURE The present invention deals with heat shields for use in connection with hot pipes and, in particular, for use with coke oven ascension pipes. A device for providing enhanced heat shielding on an inward side of a heated vertical pipe projecting from a pipe supporting structure compris- ing: (a) a generally cylindrical lower wall section spaced from and peripherally enclosing the pipe in generally concentric arrangement so as to form a peripheral lower vertical air space between itself and the pipe; (b) means for remotely mounting said lower wall section above the pipe supporting structure as to establish lower fluid communication between said lower vertical air space and ambient air; (c) an arcuate upper wall section aligned with and connected end to end to the cylindrical lower wall section and inwardly displaced from the pipe so as to form an upper vertical air space vertically contiguous with said lower vertical air space; (d) a lower interior vertical wall section inwardly displaced from the pipe below said arcuate upper wall section so as to partition said peripheral lower vertical air space into a warmer air flow channel peripherally adjacent to the pipe and a cooler air flow channel remote from the pipe; and (e) closure means for outwardly blocking the warmer air flow channel, such that ambient air is drawn upwardly first through said lower vertical air space then through said upper vertical air space and is then upwardly discharged so as to continuously dissipate pipe heat.
409452
Hetrick Earl C.
Winter Donald T.
Borden Ladner Gervais Llp
Koppers Company Inc.
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