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Abstract Aiming at complex situation of stress, deformation and vibration of valve plate and valve stem of DN 1500 triple eccentric metal hard seal butterfly valve under multi-physical field coupling, the valve’s fluid-structure interaction characteristics and resonance characteristics under different opening degrees were analyzed by combining ANSYS numerical simulation technique with the traditional empirical formula.The results showed that when the valve is at different opening degrees, flow condition inside the valve is different; the smaller the opening degree, the more disorder the flow condition; with increase in opening degree, the flow condition is relatively stable; when the valve is at 30% opening and 50% opening, valve plate and valve stem are easy to have resonance; when the valve is at 75% opening, stress and deformation of valve plate and valve stem are the maximum; the study results play an important role in operation and safety of large diameter triple eccentric metal hard seal butterfly valve, and also have a certain guiding significance for subsequent structure optimization and avoiding resonance.
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Received: 02 September 2020
Published: 15 May 2021
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[1]邵亚雄.三偏心金属密封蝶阀的力学特性分析及结构优化研究[D].成都: 西华大学, 2007.
[2]陈宇政.大口径蝶阀内部流场计算及其改进[J].同煤科技, 2013(4):1-3.
CHEN Yuzheng.Calculation and improvement of internal flow field of large diameter butterfly valve[J].Tongmei Science and Technology, 2013(4): 1-3.
[3]LISOWSKI E, FILO G.Analysis of a proportional control valve flow coefficient with the usage of a CFD method[J].Flow Measurement & Instrumentation, 2017, 53:269-278.
[4]王雯, 徐丽, 傅卫平,等.调节阀-管道-流体系统流固耦合动态特性研究[J].振动与冲击, 2014, 33(21):161-165.
WANG Wen,XU Li,FU Weiping,et al.Study on fluid structure coupling dynamic characteristics of control valve pipeline fluid system[J].Journal of Vibration and Shock, 2014, 33 (21): 161-165.
[5]孟思佳,寇子明.矿井排水用新型止回阀的流固耦合数值模拟研究[J].流体机械,2017,45(9):22-26.
MENG Sijia,KOU Ziming.Fluid solid coupling numerical simulation of a new type of check valve for mine drainage[J].Fluid Machinery, 2017,45(9): 22-26.
[6]赵永强,朱博文,刘智,等.三螺杆泵的流固耦合特性分析[J].液压与气动,2020(6):70-77.
ZHAO Yongqiang,ZHU Bowen,LIU Zhi,et al.Analysis of fluid structure coupling characteristics of three screw pump[J].Hydraulic and Pneumatic, 2020(6): 70-77.
[7]刘文彬.水管路系统阀门流固耦合振动噪声特性研究[D].哈尔滨:哈尔滨工程大学, 2011.
[8]王海民, 孔祥帅, 刘欢.三偏心蝶阀振动特性分析[J].振动与冲击, 2018, 37(5):202-206.
WANG Haimin,KONG Xiangshuai,LIU Huan.Vibration characteristics analysis of triple eccentric butterfly valve[J].Journal of Vibration and Shock, 2018, 37(5): 202-206.
[9]LI Shuxun,ZHU Lu,WANG Weibo,et al.Analysis of thermal-fluid-structure coupling and resonance forecast for link butterfly valve under small opening[J].Journal of Shanghai Jiaotong University(Science),2019,24(3):341-350.
[10]梁贺志.叶片尾部脱落旋涡频率的计算[J].水利电力机械,2007(12):61-63.
LIANG Hezhi.Calculation of vortex frequency of blade tail shedding[J].Water Conservancy and Electric Power Machinery, 2007(12): 61-63.
[11]闵强利.低雷诺数卡门涡街数值模拟[J].兵器装备工程学报, 2009, 30(11):81-83.
MIN Qiangli.Numerical simulation of low Reynolds number Karman vortex street[J].Journal of Ordnance Equipment Engineering, 2009, 30(11): 81-83. |
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