Heat exchange – Casing or tank enclosed conduit assembly – Manifold formed by casing section and tube sheet of assembly
Patent
1986-04-18
1988-06-14
Lazarus, Ira S.
Heat exchange
Casing or tank enclosed conduit assembly
Manifold formed by casing section and tube sheet of assembly
165 72, F28F 906
Patent
active
047505540
ABSTRACT:
Internal tube sheet sealing apparatus assembly for tubular heat exchangers which operate with pressures of, e.g., greater than 1000 psi on both sides of the tube sheet and wherein the tube sheet itself is usually subject to a lower differential pressure, comprising tube sheet loading means including a plurality of shear means assemblies and bolts the can load the tube sheet joint independently of each other, said tube sheet loading means enabling (1) the tightness of the tube sheet joint and tube joints to be inspected during differential pressure hydrotesting of the shell side without the channel cover assembly mounted in place and (2) "in-service" re-loading of the tube sheet joint without removing the channel cover assembly.
REFERENCES:
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patent: 3526275 (1970-09-01), Vance et al.
patent: 4325428 (1982-04-01), Schuurman
patent: 4630673 (1986-12-01), Belleli
Brouwer Willem H.
Jansen Adrianus C. J.
Oeij Djin K.
Berneike Richard H.
Lazarus Ira S.
Lummus Crest Inc.
Neils Peggy
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