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公开(公告)号：US20190112009A1
公开(公告)日：2019-04-18
申请号：US16090120
申请日：2016-10-21
发明人： Seung Chul LEE , Seon Jin KIM
摘要： A ship comprises: a liquefied gas storage tank; a multi-stage compressor for compressing a boil-off gas discharged from a storage tank and comprising a plurality of compression cylinders; a second heat exchanger for heat exchanging a fluid, which has been compressed by the multi-stage compressor, and thus cooling same; a first decompressing device for expanding a flow (“flow a1”) partially branched from the flow (“flow a”) that has been cooled by the second 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 same; and a second decompressing device for expanding “flow a2” which has been cooled by the third heat exchanger.
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公开(公告)号：US20220333555A1
公开(公告)日：2022-10-20
申请号：US17754366
申请日：2019-11-15
发明人： Seon Jin KIM , Seung Chul LEE , Hye Min JUNG , Jin Ho CHOI
摘要： Disclosed herein are a fuel supply system for ships and a fuel supply method using the same. The fuel supply method includes: 1) supplying an excess amount of liquefied gas as fuel to an incompressible fluid-fueled engine (E); 2) cooling unconsumed fuel discharged from the engine (E) through heat exchange with liquefied gas discharged from a storage tank (T); 3) returning the unconsumed fuel discharged from the engine (E) and having been cooled through heat exchange in step 2) to the storage tank (T); and 4) supplying the liquefied gas discharged from the storage tank (T) and having been used as refrigerant for heat exchange in step 2) to the engine (E). The fuel supply method can prevent cavitation in the engine (E) by supplying the excess amount of liquefied gas sufficient to accommodate variation in load of the engine (E) as fuel to the engine (E).
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公开(公告)号：US20190248450A1
公开(公告)日：2019-08-15
申请号：US16338451
申请日：2016-10-17
发明人： Seung Chul LEE , Seon Jin KIM , Dong Kyu CHOI
CPC分类号： B63B25/16 , F17C5/02 , F17C6/00 , F17C9/02 , F17C13/00 , F17C13/002 , F17C13/025 , F17C13/026 , F17C2227/0185 , F17C2250/0689 , F17C2265/033 , F17C2265/037 , F17C2265/038 , F17C2270/0105
摘要： An apparatus for reliquefaction of boil-off gas for a vessel, comprises: a compression unit for compressing the boil-off gas discharged from the storage tank; and a heat exchanger for heat-exchanging the compressed boil-off gas compressed by the compression unit with the boil-off gas discharged from the storage tank; a first expansion means for dividing the boil-off gas passing through the heat exchanger into at least two flows including a first flow and a second flow, and expanding the divided first flow; a first intercooler for cooling the second flow remaining after the division of the first flow by using the first flow expanded by the expansion means as a refrigerant; and a receiver for receiving a second flow having passed through the first intercooler, in which a downstream pressure of the compression unit is controlled by a flow discharged from the receiver.
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