METHOD OF OPERATION OF GAS LIQUEFIER AND GAS LIQUEFIER FOR REALIZATION OF THIS METHOD Russian patent published in 2002 - IPC

FIELD: gas liquefying systems. SUBSTANCE: starting flow of compressed gas is divided into two parts: first part is passed through first vortex tube and its hot flow is fed after cooling to inlet of direct flow of recuperative heat exchanger; second part of flow is first cooled down and then it is fed to outlet of device. Hot flow of second vortex tube is fed to outlet of device and both cold flows of both vortex tubes are mixed with flows of recuperative heat exchanger. EFFECT: reduced working pressures in recuperative heat exchanger; thus reduced metal usage and cost of heat exchanger. 8 cl, 5 dwg