METHOD OF CRYOGENIC GASES LIQUATION Russian patent published in 2009 - IPC F25J1/02 

FIELD: heating.

SUBSTANCE: invention relates to cryogenic engineering and particularly to cryogenic gases liquation and application methods. The cryogenic gas liquation method is comprised of the following processes: working gas liquation stage when working gas is compressed and cooled with coolant in heat exchanger during the heat-exchanging process, and throttled until liquid is produced; the next stage provides for using working gas when liquefied gas is evaporated and heated in heat exchanger during heat-exchanging with coolant and used in the consumer; the third stage is the cooling of coolant in heat exchanger during heat-exchange with the liquefied working gas. After that the cooled coolant is heated in heat exchanger during heat exchange with working gas. The liquefied working gas is then transported to the area of consumption, while coolant is transported to the area of working gas liquation. Liquid with melting point temperature exceeding working gas liquation temperature is used as coolant in the above mentioned processes. The coolant accumulator which is filled in with coolant before the liquefied working gas is heated is used as heat exchanger. The coolant is cooled until it becomes solid or overcooled. When working gas is liquefied, the coolant is heated to fluidity and utilised.

EFFECT: simplification and cheapening of any cryogenic gases liquation process.

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