초록 ▼

There is disclosed a self-pressurizing container for liquid helium which comprises an inner and outer vessel with an insulating space between. A heating element is disposed within an insulating barrier tube which extends between the liquid and vapor phases of the helium. The barrier tube insures tha

There is disclosed a self-pressurizing container for liquid helium which comprises an inner and outer vessel with an insulating space between. A heating element is disposed within an insulating barrier tube which extends between the liquid and vapor phases of the helium. The barrier tube insures that the liquid helium is heated and vaporized in the barrier tube without substantially heating the bulk of the liquid helium. The heating element in the preferred embodiment includes a vapor heat exchanger.

대표청구항 ▼

A self-pressurizing container for a cryogenic fluid existing as a liquid with its vapor phase disposed above the liquid, the container comprising: (a) an outer vessel; (b) an inner vessel for containing the cryogenic fluid; (c) an insulating space between the vessels; (d) a sealable access port conn

A self-pressurizing container for a cryogenic fluid existing as a liquid with its vapor phase disposed above the liquid, the container comprising: (a) an outer vessel; (b) an inner vessel for containing the cryogenic fluid; (c) an insulating space between the vessels; (d) a sealable access port connected to the inner vessel to provide sealed access from outside the outer vessel to inside of the inner vessel; (e) a transfer tube extending from outside the outer vessel through the access port into the cryogenic liquid; (f) open-ended barrier tube means extending between the cryogenic liquid and its vapor phase for conducting vapor formed from the liquid within the barrier tube to the vapor phase above the liquid in the inner vessel to pressurize the inner vessel and for insulating the liquid inside the barrier tube means from that liquid outside the barrier tube means; (g) heating means for heating the liquid inside the barrier tube means to vaporize the liquid inside the barrier tube means without substantially heating the liquid outside the barrier tube means.