公开(公告)号：US20240344665A1

公开(公告)日：2024-10-17

申请号：US18700096

申请日：2021-12-27

申请人： HANWHA OCEAN CO., LTD.

发明人： Joon Chae LEE ,  Won Jae CHOI ,  Seung Chul LEE ,  Jin Ho CHOI ,  Hye Min JUNG ,  Zie Hyun KIM ,  Hyun Jun SHIN

IPC分类号： F17C9/02 ,  B63B17/00 ,  B63J2/12

CPC分类号： F17C9/02 ,  B63B17/0027 ,  B63J2/12 ,  B63J2002/125 ,  F17C2205/0352 ,  F17C2221/014 ,  F17C2221/033 ,  F17C2227/0157 ,  F17C2227/0341 ,  F17C2265/033 ,  F17C2270/0105

摘要： A refrigerant charging system includes: a reliquefaction system reliquefying boil-off gas generated in a liquefied gas storage tank by compressing the boil-off gas and subjecting the compressed boil-off gas to heat exchange with refrigerant supplied to a heat exchanger while circulating along a refrigerant circulation line; a buffer tank storing utility N2 to be supplied to the ship; a booster compressor receiving the utility N2 from the buffer tank, compressing the received N2, and supplying the compressed N2 to the refrigerant circulation line; and a first load-up line along which the N2 is supplied from the buffer tank to the refrigerant circulation line without passing through the booster compressor. Upon initial charging in a non-operation state of the reliquefaction system, the refrigerant circulation line is charged with refrigerant by supplying the N2 from by a pressure differential between the refrigerant circulation line and the buffer tank.