F - Mech Eng,Light,Heat,Weapons – 28 – D
Patent
F - Mech Eng,Light,Heat,Weapons
28
D
257/28
F28D 7/10 (2006.01)
Patent
CA 1291986
A B S T R A C T A heat exchanger closure connection comprises a tubular shell including an outwardly extending shell closure flange having a shell closure flange sealing surface. An inner tube is positioned within the shell and includes an outwardly extending tube closure flange. The tube closure flange includes a first sealing surface and an axially spaced apart second sealing surface. A locking flange is positioned about the tube closure flange between the first and second sealing surfaces of the tube closure flange. A first seal ring is positioned between the first seal surface of the tube closure flange and the shell closure flange sealing surface. Means are provided for transmitting axial forces on the locking flange towards the shell closure flange. Means are provided for urging the locking flange toward the shell closure flange, thereby to interconnect the tube closure flange and the shell closure flange and to urge the shell closure flange sealing surface and first sealing surface of the tube closure flange into sealing engagement with the first seal ring. A tube end extension tube extends axially from the inner tube and includes an outwardly extending tube end closure flange having a tube end closure flange sealing surface positioned adjacent the second sealing surface of the tube closure flange. A second seal ring positioned between the tube end closure flange sealing surface and the tube closure flange sealing surface, and means independent of the means for urging the locking flange toward said shell closure flange for urging the tube end closure flange toward the locking flange, thereby to interconnect the tube closure flange and tube end closure flange and to urge said second seal surface of the tube closure flange and the tube end closure sealing surface into sealing engagement with the second seal ring.
532734
Bas-Tex Corporation
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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