Heat exchange – Casing or tank enclosed conduit assembly – With support in casing
Patent
1979-05-16
1983-02-01
Scott, Samuel
Heat exchange
Casing or tank enclosed conduit assembly
With support in casing
122510, 376405, F28F 918
Patent
active
043710352
ABSTRACT:
A supporting grid for tubes comprising a central reticular structure formed of main and secondary intersecting strips, an inner annular frame formed in the same material as the strips and so designed as to receive with a tight fit the ends of said strip therein, said inner frame being higher than the reticular structure so that upper and lower projecting portions are created together with cleaning ducts, and an external annular frame formed of a different material and consisting of an external box ring and of an external cover ring capable of receiving and containing therein said projecting portions of the inner frame, axially extending and inwardly facing dogs being provided at the inner portion of said external frame; the inner frame and the external frame being assembled so that at room temperature said dogs of the external frame fit tightly to the inner cylindrical surface of said projecting portions while play exists between the external cylindrical surface of the inner frame and the internal cylindrical surface of the external frame for free thermal expansion of the two materials.
REFERENCES:
patent: 4021204 (1977-05-01), Straffi
patent: 4213499 (1980-07-01), Straffi
Article entitled "Case Histories in Failure Analysis", first published in Praktische Metallographie", Number 14, 1977.
Scott Samuel
Streule, Jr. Theophil W.
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