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 vaporization unit provided in the heat medium circulation line and in which exhaust gas discharged from the engine of the ship supplied with low flash point liquefied gas as fuel and the working fluid exchange heat; an exhaust gas supply line for supplying exhaust gas to be heat-exchanged with the working fluid to the vaporization unit; a gas-liquid separator provided in the heat medium circulation line and receiving the heated working fluid from the vaporization unit 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; and 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. The vaporization unit includes a vaporizer and a superheater provided along the direction in which the working fluid transferred from the supply pump flows. The exhaust gas supply line sequentially passes through the superheater and the vaporizer. The working fluid that has exchanged heat with the exhaust gas in the vaporizer is introduced into the gas-liquid separator to separate gas-liquid, and the gaseous working fluid is further heated through the superheater and transferred to the expansion turbine. 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 저인화점 액화가스를 연료로 공급받는 상기 선박의 엔진에서 배출되는 배기가스와 상기 작동유체가 열교환되는 기화부; 상기 기화부로 상기 작동유체와 열교환될 배기가스를 공급하는 배기가스공급라인; 상기 열매체순환라인에 마련되며 상기 기화부에서 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; 및 상기 열매체순환라인에 마련되며 상기 응축열교환기에서 응축된 작동유체를 공급받아 가압하여 상기 기화기로 이송하는 공급펌프:를 포함하고, 상기 기화부는, 공급펌프에서 이송된 작동유체가 흐르는 방향을 따라 마련되는 기화기와 과열기를 포함하되, 상기 배기가스공급라인은 상기 과열기와 기화기를 순차 통과하고, 상기 기화기에서 상기 배기가스와 열교환된 작동유체는 상기 기액분리기로 도입되어 기액분리되고 기체 상태의 작동유체는 상기 과열기를 거쳐 추가 가열되어 상기 팽창터빈으로 이송되는 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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