The invention provides an energy-saving structure in front of a propeller and a pre-whirling energy-saving device in front of the propeller, and relates to the technical field of ship energy conservation. The device comprises a guide vane and a bent part. One end of the guide vane is connected with the ship body, the bent part is arranged at the root of the guide vane and connected with the guide vane, and the bent part and the guide vane form a flow guide face capable of guiding flow to the top end of the guide vane. The bent part is arranged at the root of the guide vane, the surface of the bending part is bent to be matched with the surface of the guide vane to form the flow guide surface, liquid at the root of the guide vane is guided to the top end of the guide vane, a wake field at the tail of a ship is fully utilized, the energy-saving effect is improved, and the problems that in the prior art, a guide vane cannot fully utilize the wake field characteristics of the tail of the ship, and the energy-saving effect is poor are solved.

    本发明提供了一种桨前节能结构及桨前预旋节能装置,涉及船舶节能技术领域,包括:导叶和折弯部;导叶的一端与船体连接,折弯部设置于导叶的根部,且折弯部与导叶连接,折弯部与导叶形成能够向导叶的顶端引流的导流面。通过在导叶的根部设置折弯部,折弯部的表面弯曲与导叶的表面相配合形成导流面,将导叶根部的液体引流到导叶顶端,充分利用船舶尾部的伴流场,提高节能效果,缓解了现有技术中存在的导叶无法充分利用船舶尾部伴流场特征,节能效果较差的技术问题。


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    Title :

    Energy-saving structure in front of propeller and pre-whirling energy-saving device in front of propeller


    Additional title:

    桨前节能结构及桨前预旋节能装置


    Contributors:
    LI YONGYUE (author) / HUANG SHAOFENG (author) / SUN HAISU (author) / ZOU KANG (author) / LIU YANGHAO (author)

    Publication date :

    2022-02-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



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