The invention discloses an energy-saving device in front of a propeller and a ship comprising the energy-saving device in front of the propeller, the energy-saving device in front of the propeller is arranged between the tail of a ship body and a propeller, the energy-saving device in front of the propeller comprises a flow guide blade and a flying wing, the flow guide blade comprises a guide pipe and a flow guide wing which are connected, and the flow guide blade is connected with the tail of the ship body; the guide pipe extends in the length direction of the ship body, the axial section of the guide pipe is in an arc shape, and the central axis of the guide pipe is between the guide pipe and the central axis of the propeller. The flow guide wings and the flying wings extend in the radial direction of the propeller and are arranged at intervals; the flying wings are arranged on the two sides of the flow guide blades and connected with the tail of the ship body. And the projections of the flying wings and the guide vanes are not overlapped in the length direction. The flying wings are arranged on the two sides of the flow guide blades, the projections of the flying wings and the flow guide blades in the length direction of the ship body do not coincide, gaps exist between the flying wings and the flow guide blades, resistance generated by liquid to the ship during advancing can be reduced, the independently-arranged flying wings can be adjusted to the optimal setting angle, and the propelling efficiency of the propeller is improved.
本发明公开了一种桨前节能装置及包含其的船舶,该桨前节能装置设置在船体尾部和螺旋桨之间,桨前节能装置包括导流叶和飞翼,导流叶包括相连接的导管和导流翼,导流叶与船体尾部连接;导管沿船体的长度方向延伸,且导管的轴向截面形状为弧形,导管的中心轴线在导管和螺旋桨的中轴线之间;导流翼和飞翼沿螺旋桨的径向延伸,导流翼和飞翼间隔设置;飞翼设置于导流叶的两侧,飞翼与船体尾部连接;在长度方向上飞翼与导流叶的投影不重合。通过将飞翼设置在导流叶的两侧,在船体长度方向上飞翼与导流叶的投影不重合,飞翼与导流叶之间存在间隙,能够减小液体对船行进时产生的阻力,且独立设置的飞翼能够调整到最佳的设置角度,提高螺旋桨的推进效率。
Energy-saving device in front of propeller and ship comprising same
桨前节能装置及包含其的船舶
2024-06-28
Patent
Electronic Resource
Chinese
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
Energy-saving appendage structure in front of ship propeller
European Patent Office | 2020
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