FIELD: complex for liquefaction of natural gas. SUBSTANCE: natural gas at increased pressure is fed from main gas line to vortex tube where it is divided into two flows: cold flow and hot flow. Cold flow in form of liquefied gas is drained to heat-insulated reservoir via main. Hot flow is preliminarily cooled in heat exchanger, throttled through valve and condensed in condenser of Stirling cryogenic machine. Liquid gas is drained to Dewar flask and is fed to reservoir by means of pump. Vapor of liquefied gas is throttled to condensing reservoir from gas-containing portion of reservoir via recondensation loop where it is condensed due to heat exchange and is returned to reservoir. EFFECT: enhanced efficiency; low cost; ecological safety; increased liquefaction coefficient. 1 dwg
