COOLING METHOD AND DEVICE Russian patent published in 2017 - IPC F25B5/02 F25B1/10 

FIELD: refrigerating equipment.

SUBSTANCE: invention relates to same object (1) cooling device and method. Object is subjected to cooling by means of several arranged in parallel cooling and/or liquefaction (L/R) devices. In cooling and/or liquefaction (L/R) devices same working gas with low molecular weight is used, that is, having average total molecular weight of less than 10 g/mol, such as gaseous helium. Each cooling and/or liquefaction (L/R) device comprises working gas compression station (2) and refrigerating chamber (3). Refrigerating chamber (3) is intended for cooling of working gas at compression station (2) outlet to cryogenic temperature close to working gas liquefaction temperature. Working gas is cooled by means of each of corresponding refrigerating chambers (3), is input into heat exchange with object (1). One compression station (2) provides compression of working gas for each of corresponding individual refrigerating chambers (3). Compression station (2) comprises only compression machines (EC1, EC2, EC3) of screw machines type with forced lubrication and oil separation system (4, 14).

EFFECT: technical result is higher compactness and efficiency.

11 cl, 4 dwg