小型电磁插装阀流量-压差特性研究

Research on Small Solenoid Cartridge Valve Flow-presssure Characteristic

该小型电磁插装阀可作为换向阀的先导阀使用,其流量-压差特性直接影响主阀的换向性能。论文完成了插装阀的流道设计,对插装阀的流道压差进行了计算。因为小型电磁插装阀流道结构较复杂,流体多次拐弯,其流道沿程及局部压力损失计算是否可行,需通过仿真和试验进行验证,该文建立了插装阀流道的三维模型,在流体仿真软件Fluent中对其流量-压差特性进行了仿真分析,搭建了电磁插装阀流量-压差特性试验台,通过试验验证了计算和仿真分析在该类小型阀中只适用于流体流速较小的情况,对该类小型阀的设计有参考价值。

The small solenoid cartridge valve is used in driving hydraulic shift valve,the characteristic of flow-pressure directly affect shift valve‘s commutation performance.In this paper,the design of fluid channel is finished,the design calculation of cartridge valve pressure differentials is done.Due to the complicated structure of the small solenoid cartridge valve,it is necessary to verify the flow path and local pressure loss calculation through simulation and experiment,the three-dimensional model of cartridge valve fluid channel is established,The characteristic of flow-pressure is investigated using commercial software,Fluent,The test bench of solenoid cartridge valve is established,the flow-pressure characteristic is tested,the test shows that the calculation and simulation analysis are only applicable to low flow velocity in this kind of small valve.It provides a reference for the design of the small valve.