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Title:
BOIL-OFF GAS RELIQUEFACTION SYSTEM, METHOD FOR DISCHARGING LUBRICATING OIL IN BOIL-OFF GAS RELIQUEFACTION SYSTEM, AND ENGINE FUEL SUPPLY METHOD
Document Type and Number:
WIPO Patent Application WO/2019/027063
Kind Code:
A1
Abstract:
A boil-off gas reliquefaction system is disclosed. The boil-off gas reliquefaction system comprises: a compressor for compressing boil-off gas; a heat exchanger for subjecting the boil-off gas compressed by the compressor to heat exchange, and thus cooling same, by using the boil-off gas before being compressed by the compressor as a refrigerant; a bypass line for enabling the boil-off gas to bypass the heat exchanger and be supplied to the compressor; a second valve for controlling fluid flow and opening/closing, which is installed on a second supply line for transferring, to the compressor, the boil-off gas used as a refrigerant in the heat exchanger; and a decompressing device installed at the rear end of the heat exchanger, and decompressing the fluid cooled by the heat exchanger, wherein the compressor comprises at least one oil-lubricated cylinder, and the bypass line converges into the second supply line at the rear end of the second valve.

Inventors:
LEE JOON CHAE (KR)
CHOI DONG KYU (KR)
PARK CHEONG GI (KR)
KIM DONG CHAN (KR)
CHOI WON JAE (KR)
LEE CHANG WOO (KR)
SHIN HYUN JUN (KR)
Application Number:
KR2017/008365
Publication Date:
February 07, 2019
Filing Date:
August 03, 2017
Export Citation:
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Assignee:
DAEWOO SHIPBUILDING & MARINE (KR)
International Classes:
B63B25/16; B63H21/38; F17C6/00; F17C9/02; F17C13/00
Foreign References:
KR20150115126A2015-10-14
KR20150062826A2015-06-08
KR20160013439A2016-02-04
KR20160044099A2016-04-25
JPH09157667A1997-06-17
Attorney, Agent or Firm:
AIP PATENT & LAW FIRM (KR)
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