FIELD: pipelines.
SUBSTANCE: cryogenic pipeline system relates to devices for transportation of liquefied natural gas (hereinafter LNG) and is intended for LNG movement from manufacturer to vehicles, for example, to gas carriers and can be used in gas processing industry. System in an underground process tunnel comprises at least one cryogenic LNG pipeline and a group of process pipelines: at least one stripping gas pipeline, LNG circulation pipeline, LNG cooldown pipeline equipped with cryogenic thermal insulation, nitrogen and LNG mixture pipeline for discharge to the plug from the tunnel, nitrogen pipeline for the tunnel filling and high-purity nitrogen pipeline.
EFFECT: compact arrangement in tunnel of the whole system of the main cryogenic pipelines of LNG transfer with heat insulation, and also process pipelines with passage for personnel.
7 cl, 1 dwg
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