Double-walled tank for low-temperature liquids
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United States of America Patent
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-
Jan 4, 1983
Grant Date -
N/A
app pub date -
Sep 5, 1980
filing date -
Sep 8, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a double-walled tank for low-temperature liquids, such as a liquid gas, an inner tank forms a primary safety casing while an outer tank, enclosing the inner tank, forms a secondary safety casing. The inner tank includes a base and an upwardly extending side wall with at least the base being formed of metal. Preferably, the outer tank is formed of reinforced concrete. A thermal insulation layer is located between the two tanks, a ring of reinforced concrete encircles the junction of the side wall and base of the inner tank. The ring is L-shaped and in radial section has an upwardly extending leg in contact with the outside surface of the side wall and a generally horizontal leg in contact with the radially outer part of the lower surface of the base.
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