The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 08, 2022

Filed:

Nov. 12, 2019
Applicant:

Daewoo Shipbuilding & Marine Engineering Co., Ltd., Gyeongsangnam-do, KR;

Inventors:

Hyun Jun Shin, Seoul, KR;

Dong Kyu Choi, Seongnam-si, KR;

Young Sik Moon, Gwangmyeong-si, KR;

Su Kyung An, Gwangmyeong-si, KR;

Joon Chae Lee, Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F17C 9/02 (2006.01); B63H 21/38 (2006.01); F02M 21/02 (2006.01); F25J 1/00 (2006.01); F25J 1/02 (2006.01); F17C 6/00 (2006.01); B63B 25/16 (2006.01); B63J 99/00 (2009.01);
U.S. Cl.
CPC ...
B63H 21/38 (2013.01); B63B 25/16 (2013.01); F02M 21/0287 (2013.01); F17C 6/00 (2013.01); F17C 9/02 (2013.01); F25J 1/004 (2013.01); F25J 1/0025 (2013.01); F25J 1/0037 (2013.01); F25J 1/0045 (2013.01); F25J 1/0202 (2013.01); F25J 1/023 (2013.01); F25J 1/0249 (2013.01); F25J 1/0277 (2013.01); F25J 1/0288 (2013.01); F25J 1/0294 (2013.01); B63J 2099/003 (2013.01); F02M 21/0215 (2013.01); F17C 2221/033 (2013.01); F17C 2223/0161 (2013.01); F17C 2223/033 (2013.01); F17C 2227/0185 (2013.01); F17C 2227/0339 (2013.01); F17C 2227/0358 (2013.01); F17C 2265/03 (2013.01); F17C 2265/037 (2013.01); F17C 2265/066 (2013.01); F17C 2270/0105 (2013.01); F25J 2290/72 (2013.01); Y02T 10/30 (2013.01);
Abstract

A system for reliquefying a boil off gas generated in a storage tank includes a first compressor compressing a partial amount (hereinafter, referred to as 'fluid a') of boil off gas discharged from the storage tank, a second compressor compressing another partial amount (hereinafter, referred to as 'fluid b') of boil off gas discharged from the storage tank, a second expanding unit expanding a partial amount (hereinafter, referred to as ‘fluid c’) of a flow formed as the fluid a and the fluid b join, a heat-exchanger cooling another partial amount (hereinafter, referred to as ‘fluid d’) of the flow formed as the fluid a and the fluid b join, and a first expanding unit expanding the fluid d cooled by the heat-exchanger, wherein the heat-exchanger heat-exchanges the fluid d with the fluid c as a coolant expanded by the second expanding unit to cool the fluid d.


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