复合织构化压裂泵柱塞密封副动压润滑性能仿真研究
|
摘要
为改善压裂泵柱塞密封副的摩擦磨损性能,在压裂泵柱塞密封副表面建立不同的复合表面织构(不同复合织构类型、不同分布方式、不同截面形状等),并在结合柱塞密封副几何结构特征、压力边界条件及雷诺方程的基础上,建立织构化柱塞密封副动压润滑理论模型,采用有限差分对雷诺方程进行求解,仿真分析复合织构对柱塞密封副动压润滑性能的影响规律。数值仿真研究结果表明:复合织构对动压润滑性能的影响与外织构深度有密切关系;内织构为凹坑或凸起,以及内织构为不同截面形状的复合织构,主要是通过影响织构平均深度与摩擦副间隙的大小关系,而对复合织构的动压润滑性能造成不同的影响规律;内织构分布于外织构右侧(润滑介质入口一侧)对复合织构动压润滑性能的提升最大。
The friction and wear properties of fracturing pump plunger seal are the main factors that affect its working performance and service life,and biomimetic texture has been proven to improve textured surface lubrication and tribological properties. In order to improve the friction and wear properties of the fracturing pump plunger seal pair,different composite surface textures( different composite texture types,different distribution patterns,different cross-sectional shapes)were established on the surface of the fracturing pump plunger seal. On the basis of the geometrical structure characteristics,pressure boundary conditions and Reynolds equation,the theoretical model of the hydrodynamic lubrication of textured fracturing pumper plunger seal was established,the influence of compound texture on the hydrodynamic lubrication performance of plunger seal was analyzed. Numerical simulation results show that compared with single texture,the further influence of compound texture on hydrodynamic lubrication is closely related to the external texture depth. For the compound textures that the inner texture is pit or bump and the cross-section has different shape,they mainly affects the relationship between the average texture depth and the clearance of the friction pair,thus resulting in different effects of hydrodynamic lubrication performance. When the inner texture is distributed on the right side of the external texture( the inlet side of the lubrication media),the hydrodynamic lubrication performance of compound texture is greatly improved.
The friction and wear properties of fracturing pump plunger seal are the main factors that affect its working performance and service life,and biomimetic texture has been proven to improve textured surface lubrication and tribological properties. In order to improve the friction and wear properties of the fracturing pump plunger seal pair,different composite surface textures( different composite texture types,different distribution patterns,different cross-sectional shapes)were established on the surface of the fracturing pump plunger seal. On the basis of the geometrical structure characteristics,pressure boundary conditions and Reynolds equation,the theoretical model of the hydrodynamic lubrication of textured fracturing pumper plunger seal was established,the influence of compound texture on the hydrodynamic lubrication performance of plunger seal was analyzed. Numerical simulation results show that compared with single texture,the further influence of compound texture on hydrodynamic lubrication is closely related to the external texture depth. For the compound textures that the inner texture is pit or bump and the cross-section has different shape,they mainly affects the relationship between the average texture depth and the clearance of the friction pair,thus resulting in different effects of hydrodynamic lubrication performance. When the inner texture is distributed on the right side of the external texture( the inlet side of the lubrication media),the hydrodynamic lubrication performance of compound texture is greatly improved.
引文
[1]BRIZMER V,KLIGERMAN Y,ETSION I.A laser surface textured parallel thrust bearing[J].Tribology Transactions,2003,46(3):397-403.
[2]VILHENA L M,SEDLA CˇEK M,PODGORNIK B,et al.Surface texturing by pulsed Nd:YAG laser[J].Tribology International,2009,42(10):1496-1504.
[3]GU C,MENG X,XIE Y,et al.Effects of surface texturing on ring/liner friction under starved lubrication[J].Tribology International,2016,94:591-605.
[4]SHEN C,KHONSARI M M.Texture shape optimization for seallike parallel surfaces:Theory and experiment[J].Tribology Transactions,2016,59(4):698-706.
[5]PETTERSSON U,JACOBSON S.Textured surfaces in sliding boundary lubricated contacts-mechanisms,possibilities and limitations[J].Tribology-Materials,Surfaces&Interfaces,2007,1(4):181-189.
[6]KIM B,CHAE Y H,CHOI H S.Effects of surface texturing on the frictional behavior of cast iron surfaces[J].Tribology International,2014,70:128-135.
[7]SHEN X H,TAO G C.Tribological behaviors of two micro textured surfaces generated by vibrating milling under boundary lubricated sliding[J].The International Journal of Advanced Manufacturing Technology,2015,79(9/10/11/12):1995-2002.
[8]TANG W,ZHOU Y,ZHU H,et al.The effect of surface texturing on reducing the friction and wear of steel under lubricated sliding contact[J].Applied Surface Science,2013,273:199-204.
[9]BRAUN D,GREINER C,SCHNEIDER J,et al.Efficiency of laser surface texturing in the reduction of friction under mixed lubrication[J].Tribology International,2014,77:142-147.
[10]YU H,WANG X,ZHOU F.Geometric shape effects of surface texture on the generation of hydrodynamic pressure between conformal contacting surfaces[J].Tribology Letters,2010,37(2):123-130.
[11]YU H,HUANG W,WANG X.Dimple patterns design for different circumstances[J].Lubrication Science,2013,25(2):67-78.
[12]BAI S X,PENG X D,LI J Y,et al.Experimental study on hydrodynamic effect of orientation micro-pored surfaces[J].Science China Technological Sciences,2011,54(3):659-662.
[13]GADESCHI G B,BACKHAUS K,KNOLL G.Numerical analysis of laser-textured piston-rings in the hydrodynamic lubrication regime[J].Journal of Tribology,2012,134(4):041702.1-8.
[14]SHI L,WANG X,SU X,et al.Comparison of the load-carrying performance of mechanical gas seals textured with microgrooves and microdimples[J].Journal of Tribology,2016,138(2):021701.1-7.
[15]MENG F M,ZHANG L,LIU Y,et al.Effect of compound dimple on tribological performances of journal bearing[J].Tribology International,2015,91:99-110.
[16]REYNOLDS O.On the theory of lubrication and its application to Mr.Beauchamp tower’s experiments,including an experimental determination of the viscosity of olive oil[J].Proceedings of the Royal Society of London,1886,40(242/243/244/245):191-203.
[17]朱维兵,秦小屿,毛国平.压裂泵柱塞密封副润滑机理分析[J].西华大学学报(自然科学版),2002,21(2):7-9.ZHU W B,QIN X Y,MAO G P.Lubrication mechanism analysis of plunger-seal pair in fracturing pump[J].Journal of Xihua University(Natural Science Edition),2002,21(2):7-9.
[18]HE X,LIAO W,WANG G,et al.Impact Evaluation Approach of a Texture Cross Section Shape on Hydrodynamic Lubrication Performance[C]//Proceedings of International Conference on Mechanical Design.Singapore:Springer,2017:1593-1611.
[2]VILHENA L M,SEDLA CˇEK M,PODGORNIK B,et al.Surface texturing by pulsed Nd:YAG laser[J].Tribology International,2009,42(10):1496-1504.
[3]GU C,MENG X,XIE Y,et al.Effects of surface texturing on ring/liner friction under starved lubrication[J].Tribology International,2016,94:591-605.
[4]SHEN C,KHONSARI M M.Texture shape optimization for seallike parallel surfaces:Theory and experiment[J].Tribology Transactions,2016,59(4):698-706.
[5]PETTERSSON U,JACOBSON S.Textured surfaces in sliding boundary lubricated contacts-mechanisms,possibilities and limitations[J].Tribology-Materials,Surfaces&Interfaces,2007,1(4):181-189.
[6]KIM B,CHAE Y H,CHOI H S.Effects of surface texturing on the frictional behavior of cast iron surfaces[J].Tribology International,2014,70:128-135.
[7]SHEN X H,TAO G C.Tribological behaviors of two micro textured surfaces generated by vibrating milling under boundary lubricated sliding[J].The International Journal of Advanced Manufacturing Technology,2015,79(9/10/11/12):1995-2002.
[8]TANG W,ZHOU Y,ZHU H,et al.The effect of surface texturing on reducing the friction and wear of steel under lubricated sliding contact[J].Applied Surface Science,2013,273:199-204.
[9]BRAUN D,GREINER C,SCHNEIDER J,et al.Efficiency of laser surface texturing in the reduction of friction under mixed lubrication[J].Tribology International,2014,77:142-147.
[10]YU H,WANG X,ZHOU F.Geometric shape effects of surface texture on the generation of hydrodynamic pressure between conformal contacting surfaces[J].Tribology Letters,2010,37(2):123-130.
[11]YU H,HUANG W,WANG X.Dimple patterns design for different circumstances[J].Lubrication Science,2013,25(2):67-78.
[12]BAI S X,PENG X D,LI J Y,et al.Experimental study on hydrodynamic effect of orientation micro-pored surfaces[J].Science China Technological Sciences,2011,54(3):659-662.
[13]GADESCHI G B,BACKHAUS K,KNOLL G.Numerical analysis of laser-textured piston-rings in the hydrodynamic lubrication regime[J].Journal of Tribology,2012,134(4):041702.1-8.
[14]SHI L,WANG X,SU X,et al.Comparison of the load-carrying performance of mechanical gas seals textured with microgrooves and microdimples[J].Journal of Tribology,2016,138(2):021701.1-7.
[15]MENG F M,ZHANG L,LIU Y,et al.Effect of compound dimple on tribological performances of journal bearing[J].Tribology International,2015,91:99-110.
[16]REYNOLDS O.On the theory of lubrication and its application to Mr.Beauchamp tower’s experiments,including an experimental determination of the viscosity of olive oil[J].Proceedings of the Royal Society of London,1886,40(242/243/244/245):191-203.
[17]朱维兵,秦小屿,毛国平.压裂泵柱塞密封副润滑机理分析[J].西华大学学报(自然科学版),2002,21(2):7-9.ZHU W B,QIN X Y,MAO G P.Lubrication mechanism analysis of plunger-seal pair in fracturing pump[J].Journal of Xihua University(Natural Science Edition),2002,21(2):7-9.
[18]HE X,LIAO W,WANG G,et al.Impact Evaluation Approach of a Texture Cross Section Shape on Hydrodynamic Lubrication Performance[C]//Proceedings of International Conference on Mechanical Design.Singapore:Springer,2017:1593-1611.