High pressure cryogenic fluid delivery system

F - Mech Eng,Light,Heat,Weapons – 17 – C

Patent

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Details

F17C 7/04 (2006.01) F17C 9/02 (2006.01)

Patent

CA 2250651

A system delivers cryogenic gas at a high pressure from a supply of cryogenic liquid maintained at a low pressure in a bulk tank. The bulk tank supplies liquid to at least one transfer tank. The transfer tank is pressurized by connecting it to a pressure building tank containing gas at a high pressure. A heat exchanger is connected in circuit between the transfer tank and the pressure building tank. The transfer tank provides liquid at a high pressure to the heat exchanger so that a vapor is produced. This vapor is fed to the pressure building tank so that the high pressure therein is maintained. The transfer tank provides a high pressure flow of liquid to a vaporizer and a high pressure gas storage tank so that high pressure cryogenic gas may be produced and stored.

La présente invention a pour objet un système assurant l'alimentation haute pression de gaz cryogénique en provenance d'une cuve réfrigérante dans laquelle le liquide cryogénique est conservé à basse pression. La cuve réfrigérante alimente de liquide au moins une cuve de transfert. La cuve de transfert est pressurisée par raccordement à un réservoir de mise sous pression contenant un gaz sous haute pression. Un échangeur de chaleur est raccordé en circuit entre la cuve de transfert et le réservoir de mise sous pression. La cuve de transfert alimente l'échangeur de chaleur de liquide sous haute pression aux fins de production de vapeur. Cette vapeur est acheminée vers le réservoir de mise sous pression afin de maintenir un haut niveau de pression à l'intérieur de celui-ci. La cuve de transfert assurer une circulation de liquide sous haute pression vers un vaporisateur et un réservoir de stockage de gaz sous haute pression, pour la production et le stockage de gaz cryogénique sous haute pression.

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