SYSTEM AND METHOD FOR STORAGE AND DELIVERY OF CRYOGENIC LIQUID AIR

摘要

One aspect of the disclosure provides a system for storing a cryogenic mixture of liquid air and providing a source of breathable air. In an embodiment, the system comprises an insulated storage vessel, a cryocooler, and a vaporizing unit. The insulated storage vessel contains a cryogenic mixture of liquid air comprising liquid nitrogen (LN2) and liquid oxygen (LO2) The cryocooler is mounted to an exterior of the storage vessel to condense liquid air that vaporizes within the storage vessel, thereby returning the vaporized liquid air to a liquid phase such that concentrations of the LN2 and LO2 in the cryogenic mixture remain approximately constant. The vaporizing unit is external of the storage vessel and is in fluid communication with an interior of the storage vessel. Liquid air from the interior of the storage vessel passes through, vaporizes, and exits the vaporizing unit as the breathable air.

主权项

1. A system for storing a cryogenic mixture of liquid air and providing a source of breathable air, comprising:
an insulted storage vessel containing a cryogenic mixture of liquid air comprising liquid nitrogen (LN2) and liquid oxygen (LO2); a cryocooler mounted to an exterior of said storage vessel to condense liquid air that vaporizes within said storage vessel thereby returning said vaporized liquid air to a liquid phase such that concentrations of said LN2 and LO2 in the cryogenic mixture remain approximately constant, said returning said vaporized liquid air to said liquid phase also reducing pressure in said storage vessel within a predetermined pressure range; and a vaporizing unit, external of said storage vessel in fluid communication with an interior of said storage vessel, and in which said liquid air from said interior of said storage vessel passes through, vaporizes, and exits said vaporizing unit as said breathable air.