Device for thermal insulation of a prestressed concrete vessel w

Details Device for thermal insulation of a prestressed concrete vessel w Device for thermal insulation of a prestressed concrete vessel w

1976-06-14

1978-03-28

Engle, Samuel W.

176 52, 176 65, 176 87, G21C 900

Patent

active

040813223

ABSTRACT:
Two cylindrical shells having different diameters and covered with a metallic heat-insulation are disposed respectively within the lower and upper portions of a pressure vessel, the upper shell being closed by a lid. A chamber filled with fluid in liquid phase up to the liquid-vapor interface and with gas above said level is formed by the shells between the vaporizable fluid and the internal vessel wall, a cold liquid seal being formed by the overlapping portion of the shells. Radial expansion of the shells is permitted by supporting means at the level of at least three through-passages and is absorbed by leak-tight means placed opposite to the through-passages.

REFERENCES:
patent: 2991905 (1961-07-01), Monson et al.
patent: 3372092 (1968-03-01), Margen
patent: 3488067 (1970-01-01), Sommer
patent: 3497421 (1970-02-01), Thome
patent: 3818935 (1974-06-01), Karker et al.
patent: 3953289 (1976-04-01), Costes

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