Device for thermal insulation of a prestressed concrete vessel which affords resistance to the pressure of a vaporizable fluid contained in said vessel
Patent
·
OSTI ID:6874176
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.
- Assignee:
- Commissariat a l'Energie Atomique
- Patent Number(s):
- US 4081322
- OSTI ID:
- 6874176
- Resource Relation:
- Patent Priority Date: Priority date 19 Jun 1975, France
- Country of Publication:
- United States
- Language:
- English
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