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Title:
BOIL-OFF GAS RE-LIQUEFYING DEVICE AND METHOD FOR SHIP
Document Type and Number:
WIPO Patent Application WO/2017/171163
Kind Code:
A1
Abstract:
Disclosed is a re-liquefying device using a boil-off gas as a cooling fluid so as to re-liquefy the boil-off gas generated from a liquefied gas storage tank provided in a ship. A boil-off gas re-liquefying device for a ship, in a boil-off gas re-liquefying device provided in a ship for transporting a liquefied gas, comprises: a multi-stage compression unit comprising a plurality of compressors for compressing, in multiple stages, a boil-off gas generated from a liquefied gas storage tank; a heat exchange unit for cooling, by means of heat exchanging, the boil-off gas that has been compressed at the downstream of the multi-stage compression unit; and an expansion unit provided at the downstream of the heat exchange unit and for expanding at least one part of the boil-off gas that has passed through the multi-stage compression unit, wherein a part of the boil-off gas that has passed through the multi-stage compression unit and the heat exchange unit and was cooled can be supplied between compressors that differ from one another among the plurality of compressors.

Inventors:
SHIN HYUN JUN (KR)
MOON YOUNG SIK (KR)
CHOI DONG KYU (KR)
AN SU KYUNG (KR)
LEE SEUNG CHUL (KR)
Application Number:
PCT/KR2016/010998
Publication Date:
October 05, 2017
Filing Date:
September 30, 2016
Export Citation:
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Assignee:
DAEWOO SHIPBUILDING & MARINE (KR)
International Classes:
B63B25/16; F17C6/00; F17C9/02
Foreign References:
KR101459962B12014-11-07
KR101519541B12015-05-13
KR20150039427A2015-04-10
KR101334002B12013-11-27
KR101557571B12015-10-05
Attorney, Agent or Firm:
AIP PATENT & LAW FIRM (KR)
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