FUEL PROVIDING SYSTEM OF SHIP

• Main Authors: BYUNG YOON CHOI, SIJIN RYU, JUNWOO JEON, HOKI LEE
• Format: Patent
• Language: English; Korean
• Published: 25.10.2022
• Subjects: BLASTING; COMBUSTION ENGINES; EQUIPMENT FOR SHIPPING; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED,LIQUEFIED, OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MARINE PROPULSION OR STEERING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; RELATED EQUIPMENT; SHIPS OR OTHER WATERBORNE VESSELS; STORING OF DISTRIBUTING GASES OR LIQUIDS; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; TRANSPORTING; VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED ORSOLIDIFIED GASES; WEAPONS

Disclosed is a fuel supply system for a ship. According to an embodiment of the present invention, the fuel supply system for a ship comprises: a low-pressure compression unit for compressing boil-off gas, supplied from a storage tank, to meet the fuel supply conditions of a first consumer requiring a low-pressure fuel; a heat exchange unit for liquefying an amount of fluid, exceeding the fuel supply amount of the first consumer, of the compressed boil-off gas; an expander for expanding the liquefied fluid that has passed through the heat exchange unit; a first gas-liquid separator for separating gas and liquid from the expanded fluid; a boil-off gas supply line for connecting the storage tank, the low-pressure compression unit, the heat exchange unit, the expander, and the first gas-liquid separator, supplying gas components, separated by the first gas-liquid separator, to a front end of the low-pressure compression unit through the heat exchange unit, and precooling the boil-off gas compressed by the gas components; and a liquefied gas supply line for supplying at least a portion of the liquefied gas, supplied from the storage tank, to the heat exchange unit to liquefy the pre-cooled fluid. Therefore, the fuel supply system for a ship can compress the boil-off gas, generated inside the storage tank, at a low pressure and supply the same to the low-pressure consumer, thereby increasing operational efficiency. 선박의 연료공급시스템이 개시된다. 본 발명의 실시 예에 의한 선박의 연료공급시스템은 저장탱크로부터 공급받은 증발가스를 저압 연료를 필요로 하는 제1수요처의 연료공급조건에 맞게 압축시키는 저압압축부; 압축된 증발가스 중 제1수요처의 연료공급량을 초과한 유량을 액화시키는 열교환부; 열교환부를 통과한 액화된 유체를 팽창시키는 팽창기; 팽창된 유체를 기액 분리시키는 제1기액분리기; 저장탱크, 저압압축부, 열교환부, 팽창기, 제1기액분리기를 연결하며, 제1기액분리기에 의해 분리된 기체성분을 열교환부를 거쳐 저압압축부 의 전단으로 공급하여, 기체성분에 의해 압축된 증발가스가 예냉되도록 하는 증발가스공급라인; 및 저장탱크로부터 공급된 액화가스 중 적어도 일부를 열교환부로 공급하여, 예냉된 유체를 액화시키는 액화가스공급라인;을 포함한다.