선박

• Main Authors: TAKEDA HIROYUKI, TAKAGI TOSHIHIRO, HAGIWARA KAZUYA, NARISHIMA NAOKI, ABE TAKASHI, SHISAWA YUKI, NOZAKI TAKUMI, INDO NAOKO
• Format: Patent
• Language: Korean
• Published: 13.05.2020
• Subjects: BLASTING; EQUIPMENT FOR SHIPPING; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED,LIQUEFIED, OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; HEATING; LIGHTING; MARINE PROPULSION OR STEERING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; RELATED EQUIPMENT; SHIPS OR OTHER WATERBORNE VESSELS; STORING OF DISTRIBUTING GASES OR LIQUIDS; TRANSPORTING; VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED ORSOLIDIFIED GASES; WEAPONS

선박은, LPG를 저장하는 연료 탱크와, LPG를 연료로 하는 추진용 엔진과, 연료 탱크로부터 엔진에 LPG를 공급하는 연료 공급 라인과, 연료 공급 라인에 설치된 펌프와, 엔진으로부터 연료 탱크로 사용되지 않는 LPG를 회수하는 연료 회수 라인과, 연료 회수 라인에 설치된 압력 조절 밸브와, 펌프 및 압력 조절 밸브를 제어하는 제어 장치와, 엔진에 공급되는 LPG의 압력을 검출하는 압력계를 구비하고, 제어 장치에는, 압력 조절 밸브의 목표 개도와 엔진의 연료 소비량의 관계가 미리 저장되어 있고, 제어 장치는 압력계에서 검출되는 압력이 설정값이 되도록 압력 조절 밸브를 제어함과 동시에, 압력 조절 밸브의 개도가 엔진의 실제의 연료 소비량에 대응하는 목표 개도가 되도록 펌프를 제어한다. A ship that comprises: a fuel tank that stores LPG; a propulsion engine that uses the LPG as fuel; a fuel supply line that supplies LPG from the fuel tank to the engine; a pump that is provided to the fuel supply line; a fuel recovery line that recovers unused LPG from the engine to the fuel tank; a pressure regulation valve that is provided to the fuel recovery line; a control device that controls the pump and the pressure regulation valve; and a manometer that detects the pressure of the LPG supplied to the engine. The relationship between a target opening angle for the pressure regulation valve and the fuel consumption of the engine is prestored at the control device. The control device controls the pressure regulation valve such that the pressure detected by the manometer is at a set value and controls the pump such that the opening angle of the pressure regulation valve is the target opening angle, which corresponds to the actual fuel consumption of the engine.