A ship exhaust gas waste heat recovery system is disclosed. The ship exhaust gas waste heat recovery system of the present invention comprises: a heat medium circulation line provided on a ship and through which a working fluid circulates; a vaporizer provided in the heat medium circulation line and heating the working fluid through heat exchange with exhaust gas discharged from the engine of the ship; a gas-liquid separator provided in the heat medium circulation line and receiving the heated working fluid from the vaporizer to separate gas-liquid; an expansion turbine for receiving the gaseous working fluid separated from the gas-liquid separator and expanding the working fluid to produce axial power; a condensation heat exchanger for receiving the expanded and cooled working fluid that passes through the expansion turbine, cooling the working fluid, and changing the phase of the working fluid into liquid; a supply pump provided in the heat medium circulation line, receiving and pressurizing the working fluid condensed from the condensation heat exchanger, and transferring the working fluid to the vaporizer; and a first coolant supply line for supplying coolant for cooling the working fluid to the condensation heat exchanger. The engine is supplied with low flash point liquefied gas as fuel. In the condensation heat exchanger, three flows of heat exchange: the working fluid expanded and cooled in the expansion turbine, the working fluid pressurized by the supply pump, and the coolant of the first coolant supply line. Therefore, the energy efficiency of a ship can be improved.
선박의 배기가스 폐열회수시스템이 개시된다. 본 발명의 선박의 배기가스 폐열회수시스템은, 선박에 마련되며 작동유체가 순환하는 열매체순환라인; 상기 열매체순환라인에 마련되며 상기 작동유체가 상기 선박의 엔진에서 배출되는 배기가스와 열교환으로 가열되는 기화기; 상기 열매체순환라인에 마련되며 상기 기화기에서 가열된 작동유체를 공급받아 기액분리하는 기액분리기; 상기 기액분리기에서 분리된 기체 상태의 작동유체를 공급받아 팽창시키면서 축동력을 생산하는 팽창터빈; 상기 팽창터빈을 통과하여 팽창냉각된 작동유체를 공급받아 냉각하여 액체로 상변화시키는 응축열교환기; 상기 열매체순환라인에 마련되며 상기 응축열교환기에서 응축된 작동유체를 공급받아 가압하여 상기 기화기로 이송하는 공급펌프; 및 상기 응축열교환기에 상기 작동유체의 냉각을 위한 냉각수를 공급하는 제1 냉각수공급라인:을 포함하고, 상기 엔진은 저인화점 액화가스를 연료로 공급받고, 상기 응축열교환기에서는 상기 팽창터빈에서 팽창냉각된 작동유체, 상기 공급펌프에서 가압된 작동유체 및 상기 제1 냉각수공급라인의 냉각수의 세 흐름이 열교환되는 것을 특징으로 한다.
Exhaust Gas Heat Recovery System Of Ship
선박의 배기가스 폐열회수시스템
2023-07-04
Patent
Elektronische Ressource
Koreanisch
IPC: | B63J Hilfsanlagen auf Schiffen , AUXILIARIES ON VESSELS / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / F01K STEAM ENGINE PLANTS , Dampfkraftanlagen / F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL , Schalldämpfer oder Auspuffvorrichtungen für Gase von Kraft- und Arbeitsmaschinen oder von Kraftmaschinen allgemein / F02G HOT-GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS , mit Heißgas oder Verbrennungsgasen betriebene Kraftmaschinenanlagen, wobei die Kraftmaschinen mit Verdrängerwirkung arbeiten / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF |
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