基于浸入实体法的氮气式水击泄压阀动态仿真
|
摘要
以氮气式水击泄压阀阀内流道流场为研究对象,运用浸入实体法模拟氮气式水击泄压阀启闭过程,建立流体域及浸入实体域三维几何模型,结合阀芯运动轨迹,建立阀芯动力学方程,针对阀芯锥面不等面积的特殊设计,分析了泄压阀在水击脉动压力作用下启闭过程中阀芯各个端面上的受力状态,同时对比分析了泄压阀在不同入口恒压和水击脉动压力作用下阀芯各个端面受力及泄放量大小的影响规律。结果表明,阀芯在启闭过程中是一个震荡过程,存在一定的不平衡受力,阀芯各端面受力不均匀,且都发生方向相反、不同幅度的震荡,阀芯圆柱面受力可忽略。
Taking the flow field of Nitrogen-type surge relief valve for research subjects,immersed solid method was used to simulate the opening and closing process of nitrogen-type surge relief valve,the 3D models of fluid domain and immersed solid domain were established,the kinetic equation of valve core were established by using the valve core trajectory,Aiming at the special design for the unequal area of valve cone,the forced state of respective end face in the opening and closing process of relief valve under the effect of surge fluctuations pressure were contrasted,and the influence law of the force of valve core respective end surface and the capacity of discharge in different constant pressure and the effect of surge fluctuations pressure of relief valve inlet was analyzed.The results showed that the movement of valve core in the opening and closing process was a concussion process,unbalanced force was existing,the force of valve core respective end face was uneven,and the concussion of all of them were in the opposite directions and different amplitude,the force of valve core cylindrical surface can be ignored.
Taking the flow field of Nitrogen-type surge relief valve for research subjects,immersed solid method was used to simulate the opening and closing process of nitrogen-type surge relief valve,the 3D models of fluid domain and immersed solid domain were established,the kinetic equation of valve core were established by using the valve core trajectory,Aiming at the special design for the unequal area of valve cone,the forced state of respective end face in the opening and closing process of relief valve under the effect of surge fluctuations pressure were contrasted,and the influence law of the force of valve core respective end surface and the capacity of discharge in different constant pressure and the effect of surge fluctuations pressure of relief valve inlet was analyzed.The results showed that the movement of valve core in the opening and closing process was a concussion process,unbalanced force was existing,the force of valve core respective end face was uneven,and the concussion of all of them were in the opposite directions and different amplitude,the force of valve core cylindrical surface can be ignored.
引文
[1]周耀辉.DANIEL氮气式水击泄压阀的安装和功能维护[J].油气储运,2011,30(3):227-230ZHOU Yaohui,The Installation and Maintenance of DANIEL Nitrogen Water Hammer Relief Valve[J].Oil and Gas Storage and Transportation,2011,30(3):227-230
[2]Aldeeb A A,Ron D,Scott A.The Dynamic Response of Pressure Relief Valves in Vapor or Gas Service[J].Journal of Loss Prevention in the Process Industries,2014,31(6):127-132
[3]Srikanth C,Bhasher C.Flow Analysis in Valve With Moving Grids Through CFD Techniques[J].Advances in Engineering Sofware,2009,40(3):193-201
[4]Song X G,Wang L,Park Y C.Transient Analysis of a Spring-Loaded Pressure Safety Valve Using Computational Fluid Dynamics CFD[J].Journal of Pressure Vessel Technology,2010,132(5):1-5
[5]王安麟,吴小锋,周成林,等.基于CFD的液压滑阀多学科优化设计[J].上海交通大学学报,2010,55(12):1761-1772WANG Anlin,WU Xiaofen,ZHOU Chenglin,et al.Multidisciplinary Optimization of a Hydraulic Slide Valve Based on CFD[J].Journal of Shanghai Jiaotong University,2010,55(12):1767-1772
[6]Song X G,Jung J H,Lee S H,et al.2-D Dynamic Analysis of a Pressure Relief Valve by CFD[C]//Proceedings of the 9th WSEAS Int.Conference on Applied Computer and Applied Computational Science,2010:136-140
[7]Song X G,Park Y C,Park J H.Blowdown Prediction of a Conventional Pressure Relief Valve With a Simplified Dynamic Model[J].Mathematical and Computer Modelling,2013,57(1/2):279-288
[8]李树勋,胡建华,李连翠,等.先导式疏水阀阀芯组件动力特性分析[J].江苏大学学报(自然科学版),2013,34(6):643-649LI Shuxun,HU Jianhua,LI Liancui,et al.Dynamic Characteristic Analysis of a Pilot-Operated Steam Trap Valve Plug Components[J].Journal of Jiangsu University:Natural Science Edition,2013,34(6):643-649
[10]Giuseppe Quaglia,Massimo Sorli.Air Suspension Dimensionless Analysis and Design Procedure[J].Vehicle System Dynamics,2001,35(6):443-475
[11]袁士豪,殷晨波,刘世豪.基于AMESim的平衡阀动态性能分析[J].农业机械学报,2013,44(8):273-280YUAN Shihao,YIN Chenbo,LIU Shihao.Working Properties of Counterbalance Valve Based on AMESim Code[J].Journal of Agricultural Machinery,2013,44(8):273-280
[12]宋志伟,崔宝玲,尚照辉,等.截止阀启闭过程内部瞬态流动特性[J].工程热物理学报,2012,33(6):957-960SONG Zhiwei,CUI Baoling,SHANG Zhaohui,et al.Transient Flow Characteristic of Cut-off Valve in Opening-closing Process[J].Journal of Engineering Thermophysics,2012,33(6):957-960
[13]郭昌盛.基于动网格的调压阀流场模拟及阀芯运动分析[D].重庆:重庆大学,2013.GUO Changshen.Moving Mesh Based Flow Field Simulation of Pressure Regutaling Valve and Spool[D].Chongqing:Chongqing University,2013
[14]胡坤,李振北.ANSYS ICEM CFD工程实例详解[M].北京:人民邮电出版社,2014HU Kun,LI Zhengbei.ANSYS ICEM CFD Detailed engineering examples[M].Beijing:Post&Telecom Press,2014
[2]Aldeeb A A,Ron D,Scott A.The Dynamic Response of Pressure Relief Valves in Vapor or Gas Service[J].Journal of Loss Prevention in the Process Industries,2014,31(6):127-132
[3]Srikanth C,Bhasher C.Flow Analysis in Valve With Moving Grids Through CFD Techniques[J].Advances in Engineering Sofware,2009,40(3):193-201
[4]Song X G,Wang L,Park Y C.Transient Analysis of a Spring-Loaded Pressure Safety Valve Using Computational Fluid Dynamics CFD[J].Journal of Pressure Vessel Technology,2010,132(5):1-5
[5]王安麟,吴小锋,周成林,等.基于CFD的液压滑阀多学科优化设计[J].上海交通大学学报,2010,55(12):1761-1772WANG Anlin,WU Xiaofen,ZHOU Chenglin,et al.Multidisciplinary Optimization of a Hydraulic Slide Valve Based on CFD[J].Journal of Shanghai Jiaotong University,2010,55(12):1767-1772
[6]Song X G,Jung J H,Lee S H,et al.2-D Dynamic Analysis of a Pressure Relief Valve by CFD[C]//Proceedings of the 9th WSEAS Int.Conference on Applied Computer and Applied Computational Science,2010:136-140
[7]Song X G,Park Y C,Park J H.Blowdown Prediction of a Conventional Pressure Relief Valve With a Simplified Dynamic Model[J].Mathematical and Computer Modelling,2013,57(1/2):279-288
[8]李树勋,胡建华,李连翠,等.先导式疏水阀阀芯组件动力特性分析[J].江苏大学学报(自然科学版),2013,34(6):643-649LI Shuxun,HU Jianhua,LI Liancui,et al.Dynamic Characteristic Analysis of a Pilot-Operated Steam Trap Valve Plug Components[J].Journal of Jiangsu University:Natural Science Edition,2013,34(6):643-649
[10]Giuseppe Quaglia,Massimo Sorli.Air Suspension Dimensionless Analysis and Design Procedure[J].Vehicle System Dynamics,2001,35(6):443-475
[11]袁士豪,殷晨波,刘世豪.基于AMESim的平衡阀动态性能分析[J].农业机械学报,2013,44(8):273-280YUAN Shihao,YIN Chenbo,LIU Shihao.Working Properties of Counterbalance Valve Based on AMESim Code[J].Journal of Agricultural Machinery,2013,44(8):273-280
[12]宋志伟,崔宝玲,尚照辉,等.截止阀启闭过程内部瞬态流动特性[J].工程热物理学报,2012,33(6):957-960SONG Zhiwei,CUI Baoling,SHANG Zhaohui,et al.Transient Flow Characteristic of Cut-off Valve in Opening-closing Process[J].Journal of Engineering Thermophysics,2012,33(6):957-960
[13]郭昌盛.基于动网格的调压阀流场模拟及阀芯运动分析[D].重庆:重庆大学,2013.GUO Changshen.Moving Mesh Based Flow Field Simulation of Pressure Regutaling Valve and Spool[D].Chongqing:Chongqing University,2013
[14]胡坤,李振北.ANSYS ICEM CFD工程实例详解[M].北京:人民邮电出版社,2014HU Kun,LI Zhengbei.ANSYS ICEM CFD Detailed engineering examples[M].Beijing:Post&Telecom Press,2014