Device for closing and connecting to external conduits a reservoir of cryogenic fluid, and reservoir provided with such a device
AssigneeL'Air Liquide, Societe Anonyme a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorGuillaume Boucher
Life of this patent
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Abstract
The device comprises a monobloc subassembly (1) of cast stainless steel comprising a principal portion in the form of a disc (4) mounted on a collar (2) of the reservoir (3) and defining at least two channels (8, 9) for the passage of fluid, typically for filling, communication with the atmosphere, and withdrawal of liquid and gaseous phases reheated by atmospheric reheaters (23; 30) for the supply (31) of a controlled gaseous flow. Application particularly to cryogenic reservoirs for medical oxygen for oxygen therapy.
Claims12
Device for closing and for connecting to external conduits a reservoir (3) of cryogenic fluid, characterized in that it comprises a monobloc subassembly (1) of cast stainless steel defining at least two channels (8-11) for the passage of fluid.
Device according to one of the preceding claims, characterized in that it comprises a through passage (16) for mounting a crossing (17) or a level gauge (18).
Device according to one of the preceding claims, characterized in that the subassembly (1) is made by lost wax casting of an austenitic stainless steel comprising at least 16% chromium and at least 10% nickel having, in liquid phase, a quantity of ferrite greater than 2%, preferably not exceeding 6%.
Cryogenic reservoir provided with a device according to one of the preceding claims.
Dependencies are inferred from the claim text.