The invention belongs to the technical field of ships, and particularly relates to a front energy-saving device. The front guide pipe is installed on a tail shaft, the front portion of the propeller is conical, and the guide blades are arranged on the inner ring of the front guide pipe at intervals. The outer side end face and the inner side end face of each guide vane are fixed to the inner pipe circumferential face of the front guide pipe and the outer circumferential face of the tail shaft respectively. A ship body tail casting is formed between the lower bottom wall of the tail of the ship body and the tail shaft, the front guide pipe is located in the ship body tail casting, the cross section of the front guide pipe is annular, and the center line of the front guide pipe is located between the second guide blade and the third guide blade. The front energy-saving device further comprises a connecting toggle plate, the front end of the connecting toggle plate is fixedly connected with the lower bottom wall of the tail of the ship body, and the rear end of the connecting toggle plate is fixedly connected with the peripheral wall of the rear end of the front guide pipe. The shape of the connecting toggle plate is designed according to the standard requirement that the yield strength of the front energy-saving device meets the standard requirement, the excitation frequency of the propeller and the inherent frequency of the front energy-saving device. The energy-saving effect and the inherent frequency of the front energy-saving device are improved.

    本发明属于船舶技术领域,具体涉及一种前置节能装置。其包括安装于尾轴、螺旋桨近前方锥状的前置导管,以及前置导管内圈间隔布置的导叶;每一导叶的外侧和内侧端面分别固定于前置导管的内管圆周面和尾轴的外周面;船体尾部的下底壁与尾轴之间形成有船体尾铸,前置导管位于船体尾铸内,前置导管的横截面为环状,前置导管的中心线位于第二导叶片和第三导叶片之间;前置节能装置还包括连接肘板,连接肘板的前端与船体尾部的下底壁固定连接,后端与前置导管的后端外周壁固定连接;根据前置节能装置的屈服强度满足规范要求、螺旋桨的激振频率和前置节能装置的固有频率,对连接肘板形状进行设计。本发明提高前置节能装置的节能效果和固有频率。


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    Titel :

    Front energy-saving device


    Weitere Titelangaben:

    一种前置节能装置


    Beteiligte:
    DONG XUJING (Autor:in) / YANG LIN (Autor:in) / HU XIANWEI (Autor:in) / XIA XUANJING (Autor:in) / TIAN JIANG (Autor:in) / LEI XUEHUA (Autor:in)

    Erscheinungsdatum :

    2022-09-20


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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