F - Mech Eng,Light,Heat,Weapons – 01 – N
Patent
F - Mech Eng,Light,Heat,Weapons
01
N
F01N 3/10 (2006.01) B01D 53/72 (2006.01) B01D 53/86 (2006.01) B01J 12/00 (2006.01) B09C 1/00 (2006.01) B09C 1/06 (2006.01) F01N 3/28 (2006.01) F23G 7/06 (2006.01) F23J 15/00 (2006.01) F28D 9/04 (2006.01) F28D 21/00 (2006.01) G05D 16/00 (2006.01) G05D 23/00 (2006.01)
Patent
CA 2146014
A catalytic oxidizer (10) having a combined central catalyst chamber (12) and a spiral heat exchanger (14) for treatment of air hydrocarbon vapor mixture including as outer shell (11) of circular cross section having a tangentially directed longitudinal inlet aperture (23), a parallel longitudinal exhaust aperture (25), a top closure plate (29) and having a catalyst chamber (12) centrally and coaxially positioned in the outer shell (11) including an inlet port and an outlet port, said catalyst chamber (12) including an inlet plenum (13), a catalyst care member (15) and an exhaust plenum (16), having perforated partitions (17, 19) for separating the catalyst core member (15) from the inlet plenum (13) and the outlet plenum (16), and coaxial spiral plate heat exchanger (14) surrounding the catalyst chamber (12) including a spiral inlet passage (36) formed by coiled plates (32, 33) connected at one end to the inlet aperture (23) and at the other end to the outlet associated with the inlet plenum (13) defining a first heat exchange region, the coiled plates (32, 33) being spaced apart to create an intermediate spiral heat exchange passage, said heat exchanger (14) being sealed at opposite ends defining a second heat exchange region; and including a bypass device (52) for detecting and venting excess pressure in the catalyst chamber (12); wherein inlet flow passes through the spiral inlet passage (36) inwardly and an opposed exhaust flow passes outwardly in the adjacent spiral exhaust passage (37), the exhaust, being heated by catalytic combustion in the core, heats the inlet flow.
Cleary James M.
Fetherstonhaugh & Co.
LandOfFree
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