SHIP Russian patent published in 2019 - IPC B63B25/16 F25J1/00 F17C9/02 F17C6/00 B63H21/38 F02M21/02 

FIELD: shipbuilding.

SUBSTANCE: invention relates to shipbuilding, particularly, to vessels with gas fuel engines. Proposed vessel comprises tank for storage of liquefied gas, system and method of processing stripping gas. In particular, most or all of the remaining stripping gas can be repeatedly liquefied without using a cooling cycle, and using a separate coolant, thereby increasing cost-effectiveness. It is possible to flexibly control flow rate of coolant flow and supply of heat released during cooling in compliance with output quantity of stripping gas, load on engine depending on working speed of ship. In particular, the heat exchanger of the coolant can use not only the stripping gas compressed by the additional compressor, but also the stripping gas compressed by the compressor, as coolant for increasing flow rate of stripping gas used as coolant in heat exchanger of coolant, even more improving efficiency of repeated liquefaction and quantity of repeatedly liquefied stripping gas. Pressure of stripping gas subject to re-liquefaction process can be increased due to booster compressor, additionally increasing efficiency of repeated liquefaction and quantity of repeatedly liquefied stripping gas.

EFFECT: invention makes it possible to increase efficiency of repeated liquefaction and quantity of repeatedly liquefied stripping gas, since the stripping gas is decompressed after the process of additional cooling with the help of a heat exchanger of cooling agent.

19 cl, 10 dwg