充液阀气液两相流的流场仿真分析
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摘要
针对陶瓷砖压机上充液阀在快速下行过程中产生较大的振动,需要对其运行快速性和稳定性进行分析。分析充液阀进出口压差为0.2 MPa,气体体积率分别为10%和50%,及气体体积率为20%、压差为0.15 MPa时的流场分布,与理论计算值进行对比,验证所建立的三维流体模型的正确性。对优化后的充液阀结构进行流场分析,结果表明该结构能够为充液阀设计、结构优化提供一定的参考。
For prefill valve on the ceramic brick machine produce larger vibration in the process of rapid downward,its speediness and stability should be analyzed. The different flow fields with the 10% gas volume rate and the 50% gas volume rate under the0. 2 MPa pressure in prefill valve were analyzed,as well as the 20% gas volume rate under the 0. 15 MPa pressure. Then the flow fields were compared with the theoretical calculation to validate the correctness of the 3D fluid simulation model. It provides reference for the design and structure optimization of the prefill valve on the basis of the analysis to the flow field distribution of the optimized prefill valve.
For prefill valve on the ceramic brick machine produce larger vibration in the process of rapid downward,its speediness and stability should be analyzed. The different flow fields with the 10% gas volume rate and the 50% gas volume rate under the0. 2 MPa pressure in prefill valve were analyzed,as well as the 20% gas volume rate under the 0. 15 MPa pressure. Then the flow fields were compared with the theoretical calculation to validate the correctness of the 3D fluid simulation model. It provides reference for the design and structure optimization of the prefill valve on the basis of the analysis to the flow field distribution of the optimized prefill valve.
引文
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[2]XIAO T B,YUAN Z,TU Y L.Modeling and Simulation of YP3500 Hydraulic Ceramic Press[C]//Proceedings of the8th International Conference of Fluid Power Transmission and Control(ICFP).Hangzhou,2013:286-290.
[3]XIAO T B,JIANG X P,LING L.Modeling and Simulation of Hydraulic System of the Beam Part of the Tile Press Based on AMESim[C]//Proceedings of 2011 International Conference on Fluid Power and Mechatronics,2011:593-596.
[4]韦翠华.基于FLUENT的陶瓷砖压机的液压阀、充液阀和集成块的流场分析[D].广州:广东工业大学机电工程学院,2013:80.
[5]张柏清.力泰液压自动压砖机培训教材[M].佛山:力泰机械有限公司,2004.
[6]叶松君,周性聪,邓耀顺.基于能量法的充液阀冲击载荷的计算与分析[J].佛山陶瓷,2012(1):35-37.
[7]赵永杰,卢永锦.基于Fluent软件的大流量液压锥阀流场的数值模拟[J].机电设备,2011,28(1):5-8.ZHAO Y J,LU Y J.Numerical Simulation of the Flow Field in the Hydraulic Poppet Valve Based on the Fluent[J].Mechanical and Electrical Equipment,2011,28(1):5-8.
[8]张师帅.计算流体动力学及其应用——CFD软件的原理与应用[M].武汉:华中科技大学出版社,2011.