The invention belongs to the technical field of hydrodynamic energy conservation, and discloses a marine energy-saving guide pipe which comprises a guide pipe body, a first guide vane, a second guide vane and a third guide vane, and the guide pipe body is in an arc shape with a downward notch and is fixed to a ship body above a propeller shaft in an offset mode. The guide pipe is arranged above the propeller shaft in an offset mode, so that the flow field of the upper portion of the disc face of the propeller can be accelerated, flowing of the whole disc face of the propeller tends to be uniform, exciting force of the propeller and vibration of the ship body are reduced more effectively, and therefore the vibration of the ship body is reduced more effectively, and the service life of the ship body is prolonged. By means of the left-right asymmetric guide vane installation mode, prerotation of inflow of the propeller is increased, rotation energy loss in wake flow is effectively reduced, and by means of the guide pipe arrangement mode, materials can be effectively saved, and the structural stability can be effectively improved.
本申请属于水动力节能技术领域,公开了一种船用节能导管,包括导管、第一导叶、第二导叶和第三导叶,所述导管为凹口朝下的圆弧状,并偏置固定在螺旋桨轴上方的船体上,所述第一导叶、第二导叶和第三导叶呈扇形分布并固定连接在导管的内侧与船体之间,本申请通过将导管偏置设置于桨轴上方,可加速螺旋桨盘面上部的流场,并使整个桨盘面的流动趋于均匀,更有效地减小桨的激振力和船体振动,左右不对称的导叶安装方式,增加了螺旋桨进流的预旋,有效减少尾流中的旋转能量损失,采用本申请的导管布置方式,能够有效节省材料,提高结构稳定性。
Marine energy-saving conduit
一种船用节能导管
2024-06-07
Patent
Electronic Resource
Chinese
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
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