BOIL OFF GAS RELIQUEFACTION SYSTEM (VARIANTS) Russian patent published in 2021 - IPC B63B25/16 B63H21/38 F17C6/00 F17C9/02 F17C13/00 

FIELD: marine transport.

SUBSTANCE: invention relates to marine transport and applies to a boil off gas (BOG) reliquefaction system on ships. Proposed is a BOG reliquefaction system. The BOG reliquefaction system is comprised of: a compressor for BOG compressing; a heat exchanger cooling the compressed BOG by heat exchange using non-compressed BOG as a cooling agent; pressure reducer located at the outlet of the heat exchanger and reducing the pressure of the fluid matter cooled by the heat exchanger; and a second oil filter located at the outlet of the pressure reducer; wherein the compressor is comprised of at list one oil lubricated cylinder and the second oil filter constitutes a cryogenic oil filter.

EFFECT: increased efficiency of a BOG reliquefaction system.

17 cl, 13 dwg