Dual purpose closure for heat exchangers

Details Dual purpose closure for heat exchangers Dual purpose closure for heat exchangers

1983-11-14

1986-02-18

Davis, Jr., Albert W.

Heat exchange

Casing or tank enclosed conduit assembly

Manifold formed by casing section and tube sheet of assembly

2851331, 285368, 2851371, 165143, F28F 926

Patent

active

045707014

ABSTRACT:
Closures for double pipe and hairpin-type heat exchangers that permits opening the tube side of the closure without losing the shell side fluids or seal. A flanged split thrust ring is positioned between the shell side flange and the tube side flange and integrally connected with the tube sheet. Each connection bolt through the flange has a shoulder or threads interconnecting with the thrust ring for applying a force to maintain the seal between the shell side flange and the tube sheet.

REFERENCES:
patent: 1834968 (1931-12-01), Rector
patent: 2449052 (1948-09-01), Brown, Jr.
patent: 2520755 (1950-08-01), Brown, Jr.
patent: 3018090 (1962-01-01), Kaase et al.
patent: 3079992 (1963-03-01), Otten et al.
patent: 3155404 (1964-11-01), Brown et al.
patent: 3249153 (1966-05-01), Holland
patent: 3377087 (1968-04-01), Samerdyke et al.
patent: 3424480 (1969-01-01), Holland
patent: 3526275 (1970-09-01), Vance et al.
patent: 3593782 (1971-07-01), Draves
R. W. Holland Company, Inc., brochure dated 7/30/79 (pp. 1, 2, 11 and inside back page).
Thermal Fin Tube International Brochure, Form E78-M1U/M1S, no date.

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