Disclosed is a ship having a liquefied gas storage tank. The ship comprises: a multi-stage compressor for compressing a boil-off gas discharged from a storage tank and comprising a plurality of compression cylinders; a second heat exchanger for heat exchanging a fluid, which has been compressed by means of the multi-stage compressor, and thus cooling same; a first decompressing device for expanding a flow (hereafter referred to as "flow a1") partially branched from the flow (hereafter referred to as "flow a") that has been cooled by means of the second heat exchanger; a third heat exchanger for heat exchanging, by means of "flow a1" which has been expanded by means of the first decompressing device as a refrigerant, the remaining flow (hereafter referred to as "flow a2") of "flow a" after excluding "flow a1" that has been branched and thus cooling same; and a second decompressing device for expanding "flow a2" which has been cooled by means of the third heat exchanger, wherein the second heat exchanger cools the fluid, which has been compressed by means of the multi-stage compressor, by means of "flow a2", as a refrigerant, which has been expanded by means of the second decompressing device.
SHIP
SCHIFF
NAVIRE
2022-07-06
Patent
Elektronische Ressource
Englisch
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