The invention provides a propeller front energy-saving device which is mounted on a tail shaft pipe on one side, close to a bow, of a propeller, the propeller front energy-saving device comprises a plurality of guide vanes arranged in bilateral symmetry in the width direction of a ship, and the guide vanes are radially welded on the tail shaft pipe. The front sides, close to the bow, of the roots of the guide vanes are fixedly welded to the tail shaft pipe, the rear sides of the roots of the guide vanes extend towards the rear portion of the stern and are not connected with the tail shaft pipe, and the heads or the middles of the guide vanes are connected through annular or semi-arc guide pipes. According to the invention, the rear sides of the root parts of the guide vanes are not connected with a ship body, so that a part for generating resistance is eliminated, and only an upper vane area for generating energy is reserved, so that the energy-saving effect is improved.
本发明提供了一种螺旋桨前置节能装置,所述螺旋桨前置节能装置安装于螺旋桨靠近船首一侧的尾轴管上,所述螺旋桨前置节能装置包含有在船宽方向上左右对称布置的若干导叶,所述导叶径向焊接在尾轴管上,各所述导叶根部靠近船首的前侧与尾轴管焊接固定,且各所述导叶根部后侧向船尾后方延伸不与尾轴管相连,各所述导叶的头部之间或中部之间通过环形或者半弧形的导管相连。本发明中,导叶根部的后侧不与船体相连,这样就消除了产生阻力的部分,而仅保留了产生节能的上部叶片区域,从而提高了节能效果。
Propeller front-mounted energy-saving device
一种螺旋桨前置节能装置
2022-01-28
Patent
Electronic Resource
Chinese
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
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