The invention relates to an integrated efficient energy-saving propelling system and propelling method for a large bulk cargo ship. The received power of the ship is reduced to different degrees based on the configuration and design of a ship body molded line, a propeller and a hydrodynamic energy-saving device obtained according to the integration concept. The contributions of ship body linear design to received power mainly include reduction of ship body resistance and generation of a high-quality wake flow field, the optimized low-resistance linear design can reduce thrust needed during propeller design, and the high-quality wake flow field can enable the design result of the propeller and the hydrodynamic energy-saving device to obtain higher efficiency. According to the design of the hydrodynamic energy-saving device, a tail flow field can be effectively improved, the preposed prewhirl guide wheel can generate prewhirl to improve the propelling efficiency of the propeller, the vortex eliminating fins can eliminate the energy loss of the hub vortex of the propeller, and compared with a bulk cargo ship adopting a single energy-saving technology, the received power can be reduced by more than 5%.

    本发明涉及一种大型散货船一体化高效节能推进系统及推进方法,基于一体化理念得到的船体型线、螺旋桨和水动力节能装置的构型和设计从不同程度上降低了船舶收到功率。船体线型设计对收到功率的贡献主要包括降低船体阻力和产生高质量伴流场,优化的低阻线型可以降低螺旋桨设计时的所需推力,而高质量的伴流场可以使得螺旋桨和水动力节能装置设计结果取得更高的效率。水动力节能装置设计能够对尾部流场进行有效改进,前置预旋导轮能够产生有利预旋以提高螺旋桨推进效率,消涡鳍能够消除螺旋桨毂涡的能量损失,相比于之前采用单项节能技术的散货船相比,收到功率可降低5%以上。


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    Title :

    Integrated efficient energy-saving propelling system and propelling method for large-scale bulk cargo ship


    Additional title:

    大型散货船一体化高效节能推进系统及推进方法


    Contributors:
    WANG SHAN (author) / FENG JUN (author) / WANG YANXIA (author) / WEI JINFANG (author) / CHEN JINGPU (author) / HAN YONGBO (author)

    Publication date :

    2023-10-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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