PROBLEM TO BE SOLVED: To provide a liquefied gas carrying vessel capable of returning excess gas to a tank while suppressing consumption of motive energy in a compressor.SOLUTION: A liquefied gas carrying vessel 1 comprises: a tank 5 for storing a liquefied gas; a gas fuel engine 2 to which a boil-off gas generated by vaporization of the liquefied gas in the tank 5 is supplies as a fuel; a gas supply line 3 for supplying the boil-off gas from the tank 5 to the gas fuel engine 2; a gas compressor 4 disposed on the gas supply line 3 and pressure-feeding the boil-off gas to the gas fuel engine 2; a gas return line 6 for returning the excess gas which is not supplied from the gas supply line 3 to the engine 2 to the tank 5; and a gas return valve 71 for opening or closing the gas return line 6. The gas return line 6 is positioned in a central area of the tank 5 in a height direction and has an excess gas blowout port 67 for blowing out the excess gas into the tank 5.SELECTED DRAWING: Figure 1

    【課題】圧縮機の動力を抑えつつ余剰ガスをタンクに戻すことができる液化ガス運搬船を提供する。【解決手段】液化ガス運搬船1は、液化ガスを貯蔵するためのタンク5と、タンク5内で液化ガスが気化して発生したボイルオフガスが燃料として供給されるガス燃料機関2と、タンク5からガス燃料機関2にボイルオフガスを供給するためのガス供給ライン3と、ガス供給ライン3に配置され、ボイルオフガスをガス燃料機関2へ圧送するガス圧縮機4と、ガス供給ライン3からガス燃料機関2に供給されない余剰ガスをタンク5へ戻すためのガスリターンライン6と、ガスリターンライン6を開閉するガスリターン弁71とを備える。ガスリターンライン6は、タンク5の高さ方向の中央領域内に位置し、余剰ガスをタンク5に噴出する余剰ガス噴出口67を有する。【選択図】図1


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    Title :

    LIQUEFIED GAS CARRYING VESSEL


    Additional title:

    液化ガス運搬船


    Contributors:

    Publication date :

    2016-07-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / F17C Behälter zum Aufnehmen oder Speichern verdichteter, verflüssigter oder verfestigter Gase , VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES



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