METHOD AND APPARATUS FOR PREVENTING BOIL-OFF GAS IN A LIQUEFIED GAS CARRIER AND LIQUEFIED GAS CARRIER HAVING SAID APPARATUS FOR PREVENTING BOIL-OFF GAS

摘要

A method and an apparatus for preventing boil-off gas in a liquefied gas carrier and a liquefied gas carrier having the apparatus are provided to suppress the generation of evaporation gas in the storage tank of the liquefied gas carrier and prevent the waste of liquefied gas with cutting down on the cost according to the facility addition. A boil-off gas preventing apparatus, which is installed in a liquefied gas carrier including a storage tank(1) for storing the liquefied gas, comprises a cooling unit(11) cooling down the refrigerant, a refrigerant circulation line(L) for circulating the refrigerant cooled by the cooling unit through the inside and outside of the storage tank, and a circulation pump(12) for circulating the refrigerant cooled by the cooling unit through the refrigerant circulation line.