F - Mech Eng,Light,Heat,Weapons – 23 – L
Patent
F - Mech Eng,Light,Heat,Weapons
23
L
137/140, 158/8
F23L 17/00 (2006.01) F23G 7/08 (2006.01)
Patent
CA 1093935
ABSTRACT OF THE DISCLOSURE This invention is an improvement over the conventional molecular seal, used for the purpose of preventing the reverse flow of air into the top of a flare stack system upon cessation of flow of the lighter-than-air waste or dump combustible gases. A cylindrical chamber or housing surrounds vertical pipe sections which are parts of the flare stack system. The cylindrical housing is of significantly larger diameter than the flare stack and is closed at the top between the housing and the flare stack. A vertical pipe projects through and downwardly below the upper closure of the housing. Below the bottom of the vertical pipe inside of the housing, is a bulkhead containing a plurality of circular openings near its outer perimeter, into which a plurality of pipes have been welded, which extend upwardly in the annulus between the vertical pipe and the outer housing. These pipes terminate at a selected distance below the top closure of the housing. The bottom end of the housing is closed with a plate and an inlet pipe is welded in the center of the closure plate.
307555
Smart & Biggar
Zink (john) Company
LandOfFree
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