公开(公告)号：US11136104B2

公开(公告)日：2021-10-05

申请号：US16090077

申请日：2016-10-21

Applicant: DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD.

Inventor： Seung Chul Lee ,  Yoon Kee Kim

IPC: B63J2/14 ,  B63B25/16 ,  F17C6/00 ,  F17C9/04 ,  F17C9/02 ,  F02M21/02

Abstract: A ship comprises: a tank; a multistage compressor for compressing a boil-off gas discharged from a storage tank and comprising a plurality of compression cylinders; a first heat exchanger for heat exchanging a fluid, which has been compressed by the multistage compressor, with the boil-off gas discharged from the storage tank and thus cooling the same; a first decompressing device for expanding a flow (“flow a1”) partially branched from the flow (“flow a”) that has been cooled by the first heat exchanger; a third heat exchanger for heat exchanging, by “flow a1” which has been expanded by the first decompressing device as a refrigerant, the remaining flow (“flow a2”) of “flow a” after excluding “flow a1” that has been branched and thus cooling the same; and a second decompressing device for expanding “flow a2” which has been cooled by the third heat exchanger.