The invention discloses an axial-flow type water-jet propulsion pump which comprises a pipeline, an impeller, a transmission shaft and a guide vane, and the pipeline is provided with a water inlet and a water outlet; the impeller is arranged in the pipeline and comprises a plurality of impeller blades, and the sides, facing the water inlet or the water outlet, of the impeller blades form a zigzag structure; the end, away from the impeller, of the transmission shaft penetrates through the pipeline and is used for being connected with an external power device to drive the impeller to rotate. The guide vane is arranged in the pipeline and located between the impeller and the water outlet, the guide vane is provided with a plurality of guide vane blades, and the guide vane blades are fixedly connected with the pipeline. Compared with the prior art, the axial-flow type water-jet propulsion pump provided by the invention has the advantages that the guide vane blades are designed in a sawtooth shape, the vortex falling process at the sawtooth-shaped structure can be changed, and the flowing state of fluid in a flow channel is improved, so that the flow noise caused by vortex falling is inhibited, and the good noise reduction effect of the water-jet propulsion pump is achieved.
本发明公开了一种轴流式喷水推进泵,包括:管道、叶轮、传动轴以及导叶,管道具有进水口和出水口;叶轮布置于管道内,叶轮包括多个叶轮叶片,叶轮叶片朝向进水口或者朝向出水口的一侧形成锯齿形结构;传动轴与叶轮固定连接,传动轴远离叶轮的一端穿过管道,用于与外部动力装置连接以带动叶轮旋转;导叶布置于管道内并且位于叶轮与出水口之间,导叶具有多个导叶叶片,导叶叶片与管道固定连接。与现有技术相比,本发明提供的轴流式喷水推进泵对导叶叶片进行锯齿形设计,可以改变锯齿形结构处的涡旋脱落过程,改善流道内流体的流动状态,从而抑制涡旋脱落引起的流噪声,从而达到较好的喷水推进泵降噪效果。
Axial flow type water jet propulsion pump
一种轴流式喷水推进泵
2025-01-28
Patent
Electronic Resource
Chinese
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
Water jet propulsion pump test bench capable of adjusting flow velocity of pump inlet
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