PROBLEM TO BE SOLVED: To suppress the size increase of an exhaust gas treatment apparatus and cost increase by making effective use of treatment water in the exhaust gas treatment apparatus, a ship, and a water supply method.SOLUTION: An exhaust gas treatment apparatus comprises: an exhaust gas recirculation line G4 compressing part of exhaust gas discharged from a marine diesel engine 11 by a supercharger 21 and recirculating the compressed exhaust gas to the marine diesel engine 11 as combustion air; a scrubber 42 removing harmful substances from the exhaust gas by jetting water to the exhaust gas flowing in the exhaust gas recirculation line G4; an air cooler 52 mixing the air with the recirculation gas after the scrubber 42 removes the harmful substances from the recirculation gas and cooling a combustion gas mixture compressed by a compressor 22; and a drain water supply line W4 supplying drain water generated by cooling the exhaust gas by the air cooler 52 to the scrubber 42.

    【課題】排ガス処理装置、船舶、水供給方法において、処理水を有効利用することで装置の大型化及び高コスト化を抑制可能とする。【解決手段】舶用ディーゼルエンジン11から排出された排ガスの一部を過給機21により圧縮して燃焼用空気として舶用ディーゼルエンジン11に再循環する排ガス再循環ラインG4と、排ガス再循環ラインG4を流れる排ガスに対して水を噴射することで有害物質を除去するスクラバ42と、スクラバ42により有害物質が除去された後に空気と再循環ガスを混合し、コンプレッサ22により圧縮された燃焼用混合ガスを冷却するエアクーラ52と、エアクーラ52により排ガスを冷却することで発生したドレン水をスクラバ42に供給するドレン水供給ラインW4を設ける。【選択図】図1


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    Title :

    EXHAUST GAS TREATMENT APPARATUS, SHIP, AND WATER SUPPLY METHOD


    Additional title:

    排ガス処理装置、船舶、水供給方法


    Contributors:

    Publication date :

    2015-07-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    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 / B01D SEPARATION , Trennen / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / 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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