Disclosed is a re-liquefaction system for a liquefied fuel propulsion vessel. According to an embodiment of the present invention, the re-liquefaction system includes: a fuel tank storing liquefied fuel; a buffer tank receiving and storing the liquefied fuel from the fuel tank; a first fuel supply line processing the liquefied fuel of the fuel tank to supply the same to a high pressure gas engine; a second fuel supply line compressing evaporated gas of the fuel tank through a compressor to supply the same to the high pressure gas engine; a re-liquefaction line enabling high pressure evaporated gas in a downstream part of the compressor to exchange heat with a first heat exchanger, installed in the second fuel supply line in an upstream part of the compressor, and a second heat exchanger, installed inside the buffer tank, and then to return to the fuel tank; and an expanding device installed in the re-liquefaction line to liquefy the evaporated gas passing through the second heat exchanger. Therefore, the present invention is capable of increasing the liquefaction efficiency of the evaporated gas generated in the fuel tank.
액화연료 추진선박의 재액화시스템을 개시한다. 본 발명의 실시 예에 따른 액화연료 추진선박의 재액화시스템은 액화연료가 저장되는 연료탱크; 연료탱크로부터 액화연료를 공급받아 저장하는 버퍼탱크; 연료탱크의 액화연료를 처리하여 고압가스엔진으로 공급하는 제1연료공급라인; 연료탱크의 증발가스를 압축기로 압축하여 고압가스엔진으로 공급하는 제2연료공급라인; 압축기 하류의 고압 증발가스가 압축기 상류의 제2연료공급라인에 설치된 제1열교환기 및 버퍼탱크 내부에 설치된 제2열교환기와 열교환 후 연료탱크로 복귀하도록 하는 재액화라인; 및 제2열교환기를 거친 증발가스의 액화를 위해 재액화라인에 설치된 팽창장치를 포함한다.
RELIQUEFACTION SYSTEM OF LIQUIFIED FUEL PROPULSION SHIP
액화연료 추진선박의 재액화시스템
2016-06-13
Patent
Electronic Resource
Korean
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF / F25J LIQUEFACTION, SOLIDIFICATION, OR SEPARATION OF GASES OR GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT , Verflüssigen, Verfestigen oder Trennen von Gasen oder Gasgemischen durch Druck- und Kältebehandlung / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / F17C Behälter zum Aufnehmen oder Speichern verdichteter, verflüssigter oder verfestigter Gase , VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES |
LNG LNG LIQUIFIED FUEL GAS PROPULSION SHIP AND FUEL SUPPLYING METHOD THEREOF
European Patent Office | 2018
|European Patent Office | 2019
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