Abstract：To grasp characteristics of heat transfer and deformation of the main seal in a double mechanical seal in a medium with moderate temperature and high viscosity, and to understand influences caused by the pressure and temperature of flushing liquid, as well as to provide a reference for the sealing performance improvement and an efficient control on flushing liquid, an AR201 double mechanical seal for emulsion equipment is taken as the study object, then a heat transfer computational model is established, finally, the temperature field is analyzed based on finite element method, and the temperature and deformation of the sealing rings are studied when the pressure and temperature of flushing liquid varing. The results indicate that the highest temperature is near the outside of contact face of two rings, the temperature inside the stationary ring is significantly lower than outside the ring because of the cooling effect of flushing liquid, the temperature in the rotational ring reduces gradually from the contact face along the axial direction. The highest temperature and the maximum thermal deformation rise with increasing pressure and temperature. The maximum deformation and its magnitude caused from the change in flushing liquid operating parameters are closely related to the material of the rings. Properly choosing operating pressure and temperature for a flushing liquid can be a measure to effectively improve the sealing performance. As AR201 mechanical seals, the flushing liquid with a pressure in 0.8-0.85 MPa and a lower temperature can help reduce wear on the two end faces more favourably.
陈汇龙, 邹强, 赵斌娟, 付杰, 刘金凤. 中温高黏度介质双端面主密封热力特性分析[J]. 排灌机械工程学报, 2016, 34(11): 967-973.
CHEN Huilong, ZOU Qiang, ZHAO Binjuan, FU Jie, LIU Jinfeng. Analysis of temperature and thermal deformation of main seal in double mechanical seal in medium with moderate temperature and high viscosity. Journal of Drainage and Irrigation Machinery Engin, 2016, 34(11): 967-973.
[1]LUAN Z, KHONSARI M M. Heat transfer correlations for laminar flows within a mechanical seal chamber[J]. Tribology international, 2009, 42(5):770-778.[2]LUAN Z, KHONSARI M M. Analysis of conjugate heat transfer and turbulent flow in mechanical seals[J]. Tribology international, 2009, 42(5):762-769.[3]BLASIAK S, PAWINSKA A. Direct and inverse heat transfer in non-contacting face seals[J]. International journal of heat & mass transfer, 2015, 90:710-718.[4]BLASIAK S. An analytical approach to heat transfer and thermal distortions in non-contacting face seals[J]. International journal of heat & mass transfer, 2015, 81:90-102.[5]NOËL B, ALEXANDRU A. A simple approach to the thermo-elasto-hydrodynamic behavior of mechanical face seals[J]. Tribology transactions, 2009, 52(2):243-255.[6]周剑锋,顾伯勤. 机械密封环的传热特性分析[J]. 机械工程学报,2006,42(9):201-206. ZHOU Jianfeng, GU Boqin. Heat-transfer character analysis of rings of mechanical seal[J]. Journal of mechanical engineering, 2006,42(9):201-206.(in Chinese)[7]彭旭东,刘鑫,孟祥铠,等.核主泵用双锥度端面流体静压机械密封热弹流效应研究[J]. 摩擦学学报,2012,32(3):244-250. PENG Xudong,LIU Xin,MENG Xiangkai,et al.Thermo-elasto-hydrostatic effect analysis of a double tapered hydrostatic mechanical seal in reactor coolant pumps [J].Tribology, 2012, 32(3):244-250.(in Chinese)[8]CHEN H L, XU C, ZUO M Z, et al. The thermal and mechanical deformation study of up-stream pumping mechanical seal[J]. Materials science and engineering,2015,72(4):1-10.[9]ZHU W B, WANG H S, DONG L. Influencing factors of thermal deformation on hydrostatic pressure mechanical seal and optimization of rotating and stationary rings[J]. Telkomnika Indonesian journal of electrical engineering, 2013, 11(2):896-905.[10]CHEN Z, LIU T, LI J. The effect of the O-ring on the end face deformation of mechanical seals based on numerical simulation[J]. Tribology international, 2016, 97:278-287.[11]陈汇龙,刘彤,林清龙,等.基于ANSYS接触式机械密封热力耦合的研究[J].流体机械, 2012, 40(7):29-32. CHEN Huilong,LIU Tong,LIN Qinglong,et al. Coupling analysis of thermal stress on contacting mechanical seals based on ANSYS[J]. Journal of fluid machinery, 2012, 40(7): 29-32.(in Chinese)[12]郝木明.机械密封技术及应用[M].北京:中国石化出版社,2014:21-22.[13]王勖成.有限单元法[M].北京:清华大学出版社,2003.[14]MUSHAK P. Experimental and computational investigation of flow and thermal behavior of a mechanical seal[J]. Tribology transactions, 1999, 42(4):731-738.[15]王志豪,索双富,黄伟峰,等. 机械密封对流传热系数数值研究[J]. 润滑与密封,2011,36(6):29-33. WANG Zhihao,SUO Shuangfu,HUANG Weifeng,et al.Numerical analysis of heat transfer coefficient in mechanical face seals[J]. Lubrication engineering, 2011,36(6):29-33.(in Chinese)[16]刘在旭. 乳液输送设备机械密封失效分析及改进研究[D].镇江:江苏大学,2014.
