Flow force research and structure improvement of cartridge valve core based on CFD method

被引:13
|
作者
Liu, Jilu [1 ]
Li, Ruichuan [1 ]
Ding, Xinkai [1 ]
Liu, Qi [1 ]
机构
[1] Qilu Univ Technol, Shandong Acad Sci, Sch Mech Engn, Jinan 250000, Peoples R China
关键词
Flow force compensation; CFD simulation; Compensation characteristics; Momentum theorem;
D O I
10.1016/j.heliyon.2022.e11700
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The hydraulic force has a great negative effect on the cartridge poppet valve system. Based on the law of mo-mentum, the calculation formula of flow force of outflow poppet valve is modified, and a new valve core structure is designed. The compensation effect of the improved main valve core structure on the hydraulic force is dis-cussed; secondly, CFD simulation is carried out to obtain the influence rules of these parameters on hydrodynamic forces. According to the analysis, the influence of main valve core arc structure on hydrodynamic force compensation under different opening degrees is also studied; then the optimal parameters of the arc structure are obtained through analysis. AMEsim system simulation model and test-bed are built to verify the hydrodynamic formula and simulation results. The experimental results verify that the new valve core structure has a good hydrodynamic compensation effect.
引用
收藏
页数:13
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