| 摘要 |
<p>A liquefied gas treatment system according to an embodiment of the present invention comprises: an evaporation gas line connected to a liquefied gas storage tank; an evaporation gas compressor arranged on the evaporation gas line, and compressing evaporation gas generated in the liquefied gas storage tank; a condenser arranged on the evaporation gas line, and allowing the compressed evaporation gas and a refrigerant to exchange heat with each other; a refrigerant line arranged to circulate the refrigerant through the condenser; a second branch line branched off from the refrigerant line, and joined to the refrigerant line again; a refrigerant compressor arranged on the refrigerant line, and compressing the refrigerant in multiple stages; an evaporation gas decompressor arranged on the evaporation gas line, and decompressing the evaporation gas which exchanged the heat with the refrigerant in the condenser; a gas-liquid separator arranged on the evaporation gas line, positioned on the down stream of the evaporation gas decompressor, and separating a flash gas from the evaporation gas which was decompressed by the evaporation gas decompressor; a gas collection line connected from the gas-liquid separator to the upper stream of the evaporation gas compressor, and supplying the flash gas to the evaporation gas compressor; and an evaporation gas/refrigerant heat exchanger arranged on the gas collection line, passed by the second branch line, and allowing the evaporation gas supplied from the gas-liquid separator and the refrigerant flowing through the condenser to exchange heat with each other. When the evaporation gas supplied to be compressed by the evaporation gas compressor, the liquefied gas treatment system is capable of reducing the volume of the refrigerant by cooling the refrigerant, which flows through the refrigerant line, using the flash gas separated from the evaporation gas, thereby improving the efficiency of the refrigerant compressor.</p> |
