Heat exchange – Casing or tank enclosed conduit assembly – Manifold formed by casing section and tube sheet of assembly
Patent
1975-08-07
1977-11-15
Husar, C. J.
Heat exchange
Casing or tank enclosed conduit assembly
Manifold formed by casing section and tube sheet of assembly
165162, 122510, F28D 710, F20F 922, F28F 500
Patent
active
040581616
ABSTRACT:
A heat exchanger comprising an outer heavy structure in the form of an outer cylindrical shell fixed at its upper end to an annular intake head and an annular outlet head for one of the fluids, of which the outer bases are perforated, and an inner lightweight structure subsequently mounted in the heavy structure and formed by an annular nest of tubes inserted and welded at their ends into the perforations in said bases and arranged in the form of concentric layers forming a large central passage which is accessible for installation of the tubes, beginning with the peripheral layer adjacent the outer shell, the concentric layers of tubes being held in several transverse planes by discs formed by concentric rows of rings arranged between these layers and joined together by connecting elements, a wide central shaft subsequently being fixed for internally defining the annular exchange chamber, wherein the discs by which the tubes are held in position and which are formed by the concentric rings are in some cases, free to rotate about the axis of the apparatus under the effect of the flexural deformation of the tubes attributable to their expansion and in other cases, are fixed and joined to the outer shell and, optionally, to the central shaft which internally closes the annular exchange chamber occupied by the nest of tubes.
REFERENCES:
patent: 1992504 (1935-02-01), Penniman
patent: 3147743 (1964-09-01), Romano
patent: 3212570 (1965-10-01), Holman
patent: 3336974 (1967-08-01), Bernstein et al.
patent: 3626481 (1971-12-01), Taylor
patent: 3782455 (1974-01-01), Wolowodiuk
patent: 3916990 (1975-11-01), Ruhe et al.
Adams Bruce L.
Burns Robert E.
Husar C. J.
Lobato Emmanuel J.
Streule, Jr. Theophil W.
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