公开了一种用于液货货物的再液化系统和方法。 携带液体货物的船舶的再液化系统包括：从储存液体货物的储存罐产生的重新液化部分压缩，冷却和再液化蒸发气体，以将气体储存在 储存罐; 循环制冷剂的制冷剂循环部分，其中热量与再液化部分交换，以冷却压缩的蒸发气体; 以及安装在制冷剂循环部的上游侧的节能器，以冷却压缩的蒸发气体。 节能器在蒸发气体和存储在储罐中的液体货物之间交换热量，作为供应给船舶发动机的燃料。 因此，本发明能够为容器节省必要的能量。

The re-liquefaction system and method of the liquid cargo carriers is disclosed. Re-liquefaction system of the liquid cargo carriers of the present invention, in the re-liquefaction system of vessels carrying liquid cargo, cooling by compressing the boil-off gas (Boil-Off Gas) with the storage tank is the liquid cargo stored and re-liquefied jaeaek conversion unit to store in the storage tank; Refrigerant circulation unit for a heat exchange with the refrigerant cycle to cool the compressed packer jaeaek the vaporized gas; And further comprising an economizer to cool the boil-off gas compressed provided upstream the refrigerant circulation portion, a In the economizer as a fuel (fuel) to be supplied to the to the marine engine of liquid cargo stored in the storage tank exchanges heat with the boil-off gas and the features.