GAS LIQUEFACTION UNIT Russian patent published in 2018 - IPC F25J1/00 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the equipment for the production of liquefied gas. In the gas liquefaction plant, the pipe rack section (100), on which the air-cooled heat exchange system (101) is located, is rectangular in plan view. First compressor (4), the heat exchange region (3) of the pre-cooling, the auxiliary heat exchange portion (8) and the fourth compressor (9) are arranged in this order along one long side of the pipe rack section (100). Second compressor (6), the main heat exchange portion (5) and the third compressor (7) are arranged in this order along the other long side of the pipe rack section (100). Pipe, through which the raw gas that is cooled in the pre-cooling heat exchange section (4) is transferred, is connected to the main heat exchange portion (5) through the pipe rack portion (100). Pipe carrying the main coolant, which is compressed in the second and third compressors (6, 7), is connected to the auxiliary heat exchange portion (8) through the pipe rack section (100).

EFFECT: simplified arrangement of the pipe system and minimization of the space for the installation of the liquefaction plant.

7 cl, 4 dwg