FIELD: oil and gas industry.
SUBSTANCE: engine supply system based on gas formed during cryogenic liquid evaporation and repeated liquefaction of said gas includes a supply line for at least one engine. First compressor unit (3) is directly supplied with gas formed at evaporation of cryogenic liquid. Retraction into return line, on which cooling means (10) and first expansion means (30) are serially arranged. Cooling facilities include series-arranged second compressor unit (11, 12, 13) and heat exchanger (17), and also downstream of second compressor unit (11, 12, 13), retraction into circuit (18, 20, 21), including second expansion means (14). Circuit is repeatedly connected to the return line upstream of the second compressor unit (11, 12, 13) after passing through heat exchanger (17) in the direction opposite to the gas fraction direction not discharged through the circuit.
EFFECT: technical result is increased efficiency of liquefied gas storage.
16 cl, 5 dwg
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