The invention relates to a water jet propulsion pump device water inlet runner water flow vortex eliminating device and a vortex eliminating method thereof. A pressure pulsation sensor used for measuring the pressure of water flow of a water inlet runner on the wall surface of the water inlet runner is arranged on the upper wall surface of the water inlet runner; a plurality of flow guide grooves are formed in the water inlet flow channel from an inlet of the water inlet flow channel to the lower end of the pump shaft, and hydraulic lifting flow guide grid bars are arranged in the flow guide grooves in a penetrating mode and can move along the flow guide grooves; the flow guide grid bars are arranged on the outer wall face of the water inlet flow channel and further provided with hydraulic lifts. According to the water-jet propulsion pump, the flow guide grooves can prevent boundary layer separation of water flow on the inclined wall face of the water inlet runner, and when the flow of an inlet of the water-jet propulsion pump is reduced and large-range vortexes are prone to occurring, the hydraulic lifting type flow guide grid bars can improve a flow field structure and scatter backflow vortexes according to whether the vortexes form a targeted mode or not; and therefore, the formation of the vortex is inhibited, and the flow state of the water inlet runner can be efficiently improved.
本发明涉及一种喷水推进泵装置进水流道水流消涡装置及其消涡方法,在进水流道上壁面处设置用于测量进水流道水流对于进水流道壁面压力的压力脉动传感器;沿进水流道入口至泵轴下端处的进水流道上设有若干导流槽,导流槽内穿有液压式可升降导流栅条,导流栅条可沿导流槽移动;所述导流栅条布置在进水流道外壁面处,还设有液压升降机;通过本发明,导流槽可以预防水流在进水流道斜壁面发生边界层分离,当喷水推进泵进口流量减小,易发生大范围漩涡时,其液压式可升降式导流栅条可以根据漩涡是否形成针对性的改善流场结构,打散回流旋涡,阻止进水流道内部旋涡形成,从而抑制旋涡的形成,能够高效的改善进水流道流态。
Water flow vortex eliminating device and vortex eliminating method for water inlet runner of water-jet propulsion pump device
一种喷水推进泵装置进水流道水流消涡装置及其消涡方法
2023-06-23
Patent
Elektronische Ressource
Chinesisch
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