一种滑阀式水力振荡器滑阀分析与优化

Analysis and Optimization of a Slide Valve Hydraulic Oscillator

该文针对滑阀式水力振荡器的滑阀结构进行研究,分别分析了最小过流面积、滑阀流道形状等方面对振荡器性能的影响。对现有滑阀组进行结构改进并通过对滑阀组进行CFD模拟分析,在满足要求的压降范围内,对滑阀组的阀口形状、流道口倾斜角度进行分析,确定滑阀运动规律及行程。该文认为,在标定的工作情况下,在阀口底部开5个直径为10 mm的小孔,侧壁流道口形状为圆槽形,流道开口倾斜角度为15°时,滑阀运动规律为正弦函数,行程为60 mm,产生的压降范围0.172-4.81 MPa,是较为理想的工作状态。

In this paper,the structure of the slide valve of the slide valve hydraulic oscillator is studied.It analyzes the effects of minimum flow area and slide valve channel shape on the performance of the oscillator.The structure of the existing slide valve group is improved,and through the CFD simulation analysis of the slide valve group,within the required pressure drop range,the valve port shape and channel port inclination angle of the slide valve group are analyzed to determine the motion law and stroke of the slide valve.The analysis shows that under the calibrated working condition,five small holes with a diameter of 10 mm are opened at the bottom of the valve port structure,the shape of the side wall channel port is circular groove,the inclination angle of the channel is 15°,and the valve port length is 40 mm,the motion law of the slide valve is sinusoidal function,the stroke is 60 mm,and the pressure drop range is 0.172~4.81 MPa,which is an ideal working state.