A TREATMENT SYSTEM OF LIQUEFIED GAS

摘要

A liquefied gas treatment system according to an embodiment of the present invention includes: an evaporation gas compressor which compresses an evaporation gas supplied from a liquefied gas storage tank; an evaporation gas liquefier which liquefies at least a part of the evaporation gas compressed in the evaporation gas compressor by expanding or depressurizing the evaporation gas; a vapor-liquid separator which separates a liquid and a vapor gas from the evaporation gas passing the evaporation gas liquefier; a first heat exchanger which exchanges heat between the evaporation gas compressed in the evaporation gas compressor and the vapor gas supplied from the vapor-liquid separator; and a second heat exchanger which exchanges heat between the evaporation gas compressed in the evaporation gas compressor and the evaporation gas supplied from the liquefied gas storage tank. The liquefied gas treatment system according to the present invention has the effect of maximizing liquefaction rate of the evaporation gas liquefier, by cooling the compressed evaporation gas additionally, by exchanging heat of the compressed evaporation gas with the evaporation gas first and then exchanging heat of the compressed evaporation gas with a fresh gas secondly, and has the effect of improving energy efficiency of the system. Also, the liquefied gas treatment system according to the present invention has the effect of maximizing efficiency of the evaporation gas compressor and has the effect of driving efficiency of the system, by cooling the evaporation gas flowed into the evaporation gas compressor additionally, by additionally exchanging heat of the evaporation gas heat-exchanged with the compressed evaporation gas with the fresh gas secondly, after exchanging heat of the compressed evaporation gas with the evaporation gas first and then exchanging heat of the compressed evaporation gas with the fresh gas secondly.