隔膜深度偏差对电磁阀的水力性能影响分析

Influence of Diaphragm Depth Deviation on Hydraulic Performance of Solenoid Valve

新疆水利水电科学研究院根据新疆高效节水灌溉的发展、自动化灌溉以及我国电磁阀的发展需要,研究开发了DN110大流量直流脉冲电磁阀。通过对9个不同电磁阀隔膜深度条件下的水力性能试验的数据分析,研究了电磁阀隔膜深度偏差对电磁阀的水力性能的影响。研究结果表明:隔膜深度偏差对60~100 m3/h设计流量条件下电磁阀的水力性能影响不大,对100~140 m3/h设计流量条件下电磁阀的水力性能有影响,但隔膜深度制造偏差对电磁阀的设计流量条件下的水头损失影响不大。隔膜深度对开启压力的影响不大,而主要影响开启压力大小的因素应是隔膜材料在加工过程中的配料与加工工艺。同时我单位开发的电磁阀的最小工作压力降低到0.012~0.054 MPa之间,降低了电磁阀的开启工作压力,有利于进一步推动低压节水灌溉技术的发展。

According to the development of efficient water-saving irrigation in Xinjiang,and the development of automatic irrigation and China＇s solenoid valve,Xinjiang Water Resources Research Institute independently developed DN110 large flow DC pulse solenoid valve. The purpose of the study is to study the influence of diaphragm depth deviation on hydraulic performance of solenoid valve to improve the hydraulic performance of the solenoid valve. The results show that when the design flow rate is 60 - 100 m3/h,the depth deviation of the diaphragm has little effect on the hydraulic performance of the solenoid valve; under the design flow rate of 100 - 140 m3/h,the deviation of the diaphragm depth has little effect on the head loss; the influence of the diaphragm depth on the opening pressure of the solenoid valve is little,and the main factors are the ingredients and processing technology of the diaphragm material during processing; at the same time,the minimum working pressure of the solenoid valve is reduced to 0.012 - 0.054 MPa,which reduces the working pressure of the solenoid valve and helps to further promote the development of low-pressure water-saving irrigation technology.