Storage pressure and heat management system for bulk transfers of cryogenic liquids

A system for conditioning cryogenic liquid comprising:

• a) a replenishing tank containing a supply of cryogenic liquid;
• b) a bulk storage tank;
• c) means for transferring the cryogenic liquid from the replenishing tank to the bulk storage tank;
• d) means for heating cryogenic liquid in circuit between the replenishing tank and the bulk storage tank;
• e) means for selectively directing a portion of the cryogenic liquid from the replenishing tank to the means for heating;
• f) means for mixing the heated cryogen with a remaining portion of the cryogenic liquid as it is transferred from the replenishing tank to the bulk storage tank;
• and
• g) means for detecting pressures within said bulk storage tank in communication with the means for selectively directing and adjusting the means for selectively directing based upon the pressures detected within the bulk storage tank so that the bulk storage tank is ultimately filled with saturated cryogenic liquid at a predetermined pressure.

A method for conditioning cryogenic liquid and simultaneously transferring it from a replenishing tank to a bulk storage tank comprising the steps of:

• a) pumping the cryogenic liquid so that a stream of cryogenic liquid flowing from the replenishing tank to the bulk storage tank occurs;
• b) detecting a pressure within the bulk storage tank and communicating the pressure detected to a flow control valve;
• c) selectively heating a portion of the stream of cryogenic liquid based upon the pressure detected within the bulk storage tank so that heated cryogen is produced;
• and
• d) mixing the heated cryogen with a remaining portion of the stream so that a heated cryogenic liquid stream flows into the bulk storage tank thus increasing the pressure therein.