The invention discloses a system and method for comprehensively utilizing BOG cold energy by an LNG ship. The system mainly comprises a BOG supply unit, a fresh water preparation unit, a defrosting unit, an air conditioner low-temperature fresh air supply unit, a fresh water collection unit and a cabin cooling unit. Cold energy contained in the BOG is fully utilized through the heat exchanger; low-temperature fresh air is supplied to an air conditioner; the temperature of a cabin is reduced; a heat source consumed in the BOG heating process is saved; meanwhile, energy required for fresh waterpreparation, air conditioner fresh air supply, marine engine room cooling and BOG heating by utilizing a ship heat source is also saved; the BOG cold energy comprehensive utilization efficiency of theLNG ship is improved, the economy of the ship is greatly improved, so that the system and method is reasonable, easy to implement and high in reliability and has very high practical application value.
本发明公开了一种LNG船舶对BOG冷能综合利用的系统及方法,该系统主要包括BOG供给单元、制备淡水单元、融霜单元、空调低温新风供给单元、淡水收集单元、机舱降温单元六个单元,通过换热器将BOG中所蕴含的冷能充分利用起来,用于制备淡水、供给空调低温新风和降低机舱的温度,既节约了BOG加热过程中消耗的热源,同时又节省了淡水制备、空调新风供给、船舶机舱降温以及利用船舶热源加热BOG所需的能量,提高了LNG船舶BOG冷能的能量综合利用效率,大大提高了船舶的经济性,且本发明方法合理,易于实现,且可靠性较高,具有很高的实际应用价值。
System and method for comprehensively utilizing BOG cold energy by LNG ship
一种LNG船舶对BOG冷能综合利用的系统及方法
2020-08-28
Patent
Electronic Resource
Chinese
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