The present invention relates to a ship to which an air lubrication system is applied, and which stores liquefied gas cargo inside a plurality of cargo tanks disposed in the longitudinal direction of a hull, and produces air bubbles on the surface of the bottom area of the hull to reduce frictional resistance of the hull. To this end, the ship of the present invention may comprise: a compressed air spray line which connects an ALS compression unit installed at the inner space of the bow of the hull to a plurality of nozzles formed on the surface of the bottom area of the hull, in order to spray compressed air to the surface of the bottom area of the hull; an ALS air chamber which is installed on the compressed air spray line to store compressed air; a nitrogen booster unit which is installed in an electric motor room disposed at the upper portion of a cargo tank of the stern among the plurality of cargo tanks, and generates nitrogen gas pressurized for a leakage test of various pipes disposed at the hull; and a second compressed air supply line which connects the nitrogen booster unit to the ALS air chamber to supply the compressed air generated in the nitrogen booster unit to the ALS air chamber for supplying the same. Therefore, electricity consumption may be minimized.
본 발명은 선체의 길이방향을 따라 복수개가 마련된 카고 탱크 내부에 액화가스 화물을 저장하며, 상기 선체의 선저부 표면에 에어 버블(Air bubble)을 형성하여 선체의 마찰 저항을 감소시키기 위한 공기 윤활 시스템이 적용된 선박에 관한 것으로서, 상기 선체의 선수측 내부공간에 설치되는 ALS 압축부와 상기 선체의 선저부 표면에 형성된 복수개의 노즐을 연결하여 상기 선체의 선저부 표면에 압축공기(Compressed air)를 분사하기 위한 압축공기 분사라인; 상기 압축공기 분사라인 상에 설치되어 압축공기를 저장하는 ALS 공기챔버; 상기 복수의 카고 탱크 중 선미측 카고 탱크의 상부에 마련된 전기 모터 룸 내부에 설치되며, 상기 선체에 마련된 각종 배관의 누설 테스트(Leakage test)를 위한 가압된 질소가스를 생성하는 질소 부스터 유닛(N2 booster unit); 및 상기 질소 부스터 유닛과 상기 ALS 공기챔버를 연결하여 상기 질소 부스터 유닛에서 생성된 압축공기를 공급하는 상기 ALS 공기챔버로 공급하는 제2 압축공기 공급라인을 포함한다.
SHIP APPLIED WITH AIR LUBIRCATION SYSTEM AND SUPPLY METHOD FOR COMPRESSED AIR THEREOF
공기 윤활 시스템이 적용된 선박 및 상기 선박의 압축 공기 공급방법
30.05.2022
Patent
Elektronische Ressource
Koreanisch
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / A62C FIRE-FIGHTING , Feuerbekämpfung / B01F MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING , Mischen, z.B. Lösen, Emulgieren, Dispergieren / F04B Verdrängerkraft- und Verdrängerarbeitsmaschinen für Flüssigkeiten , POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS / F04F PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED , Pumpen von Arbeitsfluiden durch unmittelbare Berührung mit einem anderen Arbeitsfluid oder durch Ausnutzung der Trägheit des zu pumpenden Arbeitsfluids |
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