F - Mech Eng,Light,Heat,Weapons – 28 – F
Patent
F - Mech Eng,Light,Heat,Weapons
28
F
26/145, 257/15,
F28F 7/00 (2006.01)
Patent
CA 1148931
A seal construction in a heat exchanger having a shell and a tube bundle with a baffle including a tube for being inflated by a foamed elastomeric material; a channel on the edge of the baffle for supporting the tube which is in a collapsed condition in the channel during insertion of the baffle into the shell, foamed elastomeric material in the tube for maintaining the tube inflated to provide a seal btween the baffle and the shell, and a handhole in the shell for providing access to the tube for inserting the foamed elastomeric material to inflate the tube. A method of installing a seal between the baffle of a tube bundle and shell of a heat exchanger including the steps of providing a support on the baffle, placing a collapsed tube on the support, positioning the tube bundle in an installed position within the shell while the tube is collapsed, inflating the tube with a liquid which is curable to a solid so that the tube expands to engage the shell, to thereby provide a seal between the baffle and the shell, and providing a handhole in the shell proximate the installed position of the baffle to provide access to the tube during inflation thereof.
377746
Bos-Hatten Incorporated
Smart & Biggar
LandOfFree
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