倾斜椭圆微孔端面上游泵送气体密封流体动压特性
|
摘要
对倾斜椭圆微孔上游泵送气体密封的流体动压特性开展研究,对转速、密封压力、密封间隙等不同操作参数和方向因子、倾斜角、孔深以及面积比等微孔参数对密封端面动压开启力和泄漏量进行了数值分析.结果显示:倾斜椭圆微孔上游泵送气体密封可产生明显的流体动压效应,文中计算条件下动压效应使得开启力的增幅可达50%;高速条件下,倾斜椭圆微孔上游泵送气体密封可形成完全的反向泄漏.
Hydrodynamic effect of an upstream pumping gas seal texturing with orientation ellipse dimples is theoretically analyzed. A parametric investigation of the texturing parameters such as slender ratio, dimple inclination angle, dimple depth, and dimple area rate is presented for the presented gas seal under different operating parameters of rotation speed, seal pressure, and clearance. Results show that the inclined-ellipse-dimple gas upstream pumping face seals may present significant hydrodynamic effect, which lead to open force improved more than 50% greater in the analysis. A complete backward leakage may be achieved by the inclined-ellipse-dimple upstream pumping face seals in high speed cases.
Hydrodynamic effect of an upstream pumping gas seal texturing with orientation ellipse dimples is theoretically analyzed. A parametric investigation of the texturing parameters such as slender ratio, dimple inclination angle, dimple depth, and dimple area rate is presented for the presented gas seal under different operating parameters of rotation speed, seal pressure, and clearance. Results show that the inclined-ellipse-dimple gas upstream pumping face seals may present significant hydrodynamic effect, which lead to open force improved more than 50% greater in the analysis. A complete backward leakage may be achieved by the inclined-ellipse-dimple upstream pumping face seals in high speed cases.
引文
[1]Lebeck A O.Experiments and modeling of zero leakage backward pumping mechanical face seals[J].Tribology Transactions,2008,51(4):289-295.
[2]Chen H L,Xu C,Zuo M Z,et al.The thermal and mechanical deformation study of up-stream pumping mechanical seal[J].IOP Conference Series:Materials Science and Engineering,2015,72(4):1-10.
[3]Hao Muming,Hu Danmei,Guo Jie.An experimental study of the performance of the new type upstream pumping mechanical seal[J].Chemical Engineering&Machnery,2001,28(1):12-15(in Chinese)[郝木明,胡丹梅,郭洁.新型上游泵送机械密封的性能研究[J].化工机械,2001,28(1):12-15].
[4]Zhang Weizheng,Yu Zongyang,Ding Xuexing,et al.Approximate analytical calculation of liquid film flow field on upstream pumping mechanical seal[J].Chinese Journal of Applied Mechanics,2015,32(4):45-48(in Chinese)[张伟政,于宗洋,丁雪兴,等.上游泵送机械密封液膜流场近似解析计算[J].应用力学学报,2015,32(4):45-48].
[5]He Xia,Zhong Lin,Wang Guorong,et al.Tribological properties of fracturing seal with textured plunger[J].Tribology,2014,34(4):364-370(in Chinese)[何霞,钟林,王国荣,等.织构化柱塞对压裂泵密封副的摩擦学性能影响[J].摩擦学学报,2014,34(4):364-370].
[6]Bai Shaoxian,Peng Xudong,Meng Xiangkai.Stability of laser textured gas-lubricated non-contact mechanical seal[J].Tribology,2010,30(6):521-526(in Chinese)[白少先,彭旭东,孟祥铠.激光多孔端面气体非接触机械密封稳定性分析[J].摩擦学学报,2010,30(6):521-526].
[7]Song Pengyun,Chen Kuangmin,Dong Zongyu,et al.A theoretical analysis of spiral groove upstream pumping mechanical seal[J],Lubrication Engineering,1999,4:5-7(in Chinese)[宋鹏云,陈匡民,董宗玉,等.螺旋槽上游泵送机械密封性能的解析计算[J].润滑与密封,1999,4:5-7].
[8]Salant R F,Homiller S J.Stiffness and leakage in spiral groove upstream pumping mechanical seals[J].Tribology Transactions,1993,36(1):55-60.
[9]Ding Xuexing,Lu Junjie,Zhang Weizheng,et al.Comparison between two optimized groove configuration and their performance for upstream pumping mechanical seal[J].Journal of Lanzhou University of Technology,2015,41(6):74-78(in Chinese)[丁雪兴,陆俊杰,张伟政,等.上游泵送机械密封两种优化槽形及性能的对比[J].兰州理工大学学报,2015,41(6):74-78].
[10]Li Guiyong,Hao Muming,Yan Mingqiang,et al.Numerical computations of the seal performance of upstream pumping mechanical seals with spiral grooves[J].Lubrication Engineering,2012,33(2):354-361(in Chinese)[李贵勇,郝木明,闫明强,等.螺旋槽上游泵送机械密封密封特性数值计算[J].润滑与密封,2010,35(9):56-59].
[11]Song Pengyun.An analysis of factors affecting the characteristics of a upstream pumping mechanical seal[J].Lubrication Engineering,2000,3:50-55(in Chinese)[宋鹏云.螺旋槽上游泵送机械密封性能影响因素分析[J].润滑与密封,2000,3:50-55].
[12]Wang Q,Chen H L,Liu T.Research on performance of upstream pumping mechanical seal with different deep spiral groove[J].Earth and Environmental Science,2013,15:072019.
[13]Li Shuangxi,Zhang Shuqiang,Cai Jining,et al.Performance study of dynamic-hydrostatic hybrid gas seal[J].Tribology,2011,31(5):457-466(in Chinese)[李双喜,张树强,蔡纪宁,等.动静压混合式气体密封的特性分析[J].摩擦学学报,2011,31(5):457-466].
[14]Ma Chunhong,Bai Shaoxian,Peng Xudong,et al.Properties of high airflow lubrication in micro-clearance of spiral-groove face seals[J].Tribology,2015,35(6):699-706(in Chinese)[马春红,白少先,彭旭东,等.螺旋槽端面微间隙高速气流润滑密封特性[J].摩擦学学报,2015,35(6):699-706].
[15]Bai S X,Peng X D,Li Y F,et al.A hydrodynamic laser surfacetextured gas mechanical face seal[J].Tribology Letters,2010,38(2):187-194.
[16]Shi L P,Wang X Y,Su X,et al.Comparison of the load-carrying performance of mechanical gas seals textured with microgrooves and micro dimple s[J].Journal of Tribology-Transactions of the ASME,2016,138(2):021701.
[17]Li Yiefeng,Sheng Songen,Bai Shaoxian,et al.Experimental research of a hydrodynamic multi-pored face gas seal at zero pressure[J].Lubrication Engineering,2010,35(8):8-11(in Chinese)[李叶枫,盛颂恩,白少先,等.多孔端面气体密封无压开启特性的实验研究[J].润滑与密封,2010,35(8):8-11].
[18]Bai Linqing,Bai Shaoxian,Peng Xudong,et al.Hydrodynamic performance of inclination-dimpled face gas seal[J].Tribology,2011,31(2):97-103(in Chinese)[柏林清,白少先,彭旭东,等.倾斜微孔端面气体密封的动压特性研究[J].摩擦学学报,2011,31(2):97-103].
[2]Chen H L,Xu C,Zuo M Z,et al.The thermal and mechanical deformation study of up-stream pumping mechanical seal[J].IOP Conference Series:Materials Science and Engineering,2015,72(4):1-10.
[3]Hao Muming,Hu Danmei,Guo Jie.An experimental study of the performance of the new type upstream pumping mechanical seal[J].Chemical Engineering&Machnery,2001,28(1):12-15(in Chinese)[郝木明,胡丹梅,郭洁.新型上游泵送机械密封的性能研究[J].化工机械,2001,28(1):12-15].
[4]Zhang Weizheng,Yu Zongyang,Ding Xuexing,et al.Approximate analytical calculation of liquid film flow field on upstream pumping mechanical seal[J].Chinese Journal of Applied Mechanics,2015,32(4):45-48(in Chinese)[张伟政,于宗洋,丁雪兴,等.上游泵送机械密封液膜流场近似解析计算[J].应用力学学报,2015,32(4):45-48].
[5]He Xia,Zhong Lin,Wang Guorong,et al.Tribological properties of fracturing seal with textured plunger[J].Tribology,2014,34(4):364-370(in Chinese)[何霞,钟林,王国荣,等.织构化柱塞对压裂泵密封副的摩擦学性能影响[J].摩擦学学报,2014,34(4):364-370].
[6]Bai Shaoxian,Peng Xudong,Meng Xiangkai.Stability of laser textured gas-lubricated non-contact mechanical seal[J].Tribology,2010,30(6):521-526(in Chinese)[白少先,彭旭东,孟祥铠.激光多孔端面气体非接触机械密封稳定性分析[J].摩擦学学报,2010,30(6):521-526].
[7]Song Pengyun,Chen Kuangmin,Dong Zongyu,et al.A theoretical analysis of spiral groove upstream pumping mechanical seal[J],Lubrication Engineering,1999,4:5-7(in Chinese)[宋鹏云,陈匡民,董宗玉,等.螺旋槽上游泵送机械密封性能的解析计算[J].润滑与密封,1999,4:5-7].
[8]Salant R F,Homiller S J.Stiffness and leakage in spiral groove upstream pumping mechanical seals[J].Tribology Transactions,1993,36(1):55-60.
[9]Ding Xuexing,Lu Junjie,Zhang Weizheng,et al.Comparison between two optimized groove configuration and their performance for upstream pumping mechanical seal[J].Journal of Lanzhou University of Technology,2015,41(6):74-78(in Chinese)[丁雪兴,陆俊杰,张伟政,等.上游泵送机械密封两种优化槽形及性能的对比[J].兰州理工大学学报,2015,41(6):74-78].
[10]Li Guiyong,Hao Muming,Yan Mingqiang,et al.Numerical computations of the seal performance of upstream pumping mechanical seals with spiral grooves[J].Lubrication Engineering,2012,33(2):354-361(in Chinese)[李贵勇,郝木明,闫明强,等.螺旋槽上游泵送机械密封密封特性数值计算[J].润滑与密封,2010,35(9):56-59].
[11]Song Pengyun.An analysis of factors affecting the characteristics of a upstream pumping mechanical seal[J].Lubrication Engineering,2000,3:50-55(in Chinese)[宋鹏云.螺旋槽上游泵送机械密封性能影响因素分析[J].润滑与密封,2000,3:50-55].
[12]Wang Q,Chen H L,Liu T.Research on performance of upstream pumping mechanical seal with different deep spiral groove[J].Earth and Environmental Science,2013,15:072019.
[13]Li Shuangxi,Zhang Shuqiang,Cai Jining,et al.Performance study of dynamic-hydrostatic hybrid gas seal[J].Tribology,2011,31(5):457-466(in Chinese)[李双喜,张树强,蔡纪宁,等.动静压混合式气体密封的特性分析[J].摩擦学学报,2011,31(5):457-466].
[14]Ma Chunhong,Bai Shaoxian,Peng Xudong,et al.Properties of high airflow lubrication in micro-clearance of spiral-groove face seals[J].Tribology,2015,35(6):699-706(in Chinese)[马春红,白少先,彭旭东,等.螺旋槽端面微间隙高速气流润滑密封特性[J].摩擦学学报,2015,35(6):699-706].
[15]Bai S X,Peng X D,Li Y F,et al.A hydrodynamic laser surfacetextured gas mechanical face seal[J].Tribology Letters,2010,38(2):187-194.
[16]Shi L P,Wang X Y,Su X,et al.Comparison of the load-carrying performance of mechanical gas seals textured with microgrooves and micro dimple s[J].Journal of Tribology-Transactions of the ASME,2016,138(2):021701.
[17]Li Yiefeng,Sheng Songen,Bai Shaoxian,et al.Experimental research of a hydrodynamic multi-pored face gas seal at zero pressure[J].Lubrication Engineering,2010,35(8):8-11(in Chinese)[李叶枫,盛颂恩,白少先,等.多孔端面气体密封无压开启特性的实验研究[J].润滑与密封,2010,35(8):8-11].
[18]Bai Linqing,Bai Shaoxian,Peng Xudong,et al.Hydrodynamic performance of inclination-dimpled face gas seal[J].Tribology,2011,31(2):97-103(in Chinese)[柏林清,白少先,彭旭东,等.倾斜微孔端面气体密封的动压特性研究[J].摩擦学学报,2011,31(2):97-103].