Experimental research on sealing performance of liquid film seal with herringbone-grooved composite textures

被引:13
|
作者
Liu Fuyu [1 ]
Li Yongfan [1 ]
Yu Bo [2 ]
Hao Muming [1 ]
Sun Xinhui [1 ]
Li Zhentao [4 ]
Xu Lushuai [3 ]
机构
[1] China Univ Petr East China, Coll New Energy, Qingdao 266580, Peoples R China
[2] China Aerosp Sci & Technol Corp, Xian Aerosp Prop Inst, Xian 710100, Peoples R China
[3] Xi An Jiao Tong Univ, Key Lab, Educ Minist Modern Design & Rotor Bearing Syst, Xian 710049, Peoples R China
[4] Shandong Inst Petr & Chem Technol, Dept Mech & Control Engn, Dongying 257061, Shandong, Peoples R China
基金
国家重点研发计划; 中国国家自然科学基金;
关键词
Sealing performance; Liquid film seal; Herringbone grooves; Circular dimple textures; MECHANICAL FACE SEALS; VISCOSITY WEDGE; CAVITATION; REDUCTION; FRICTION; SURFACES; SHAPE;
D O I
10.1016/j.triboint.2022.108005
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Based on the mechanical seal experiments, sealing performances of the mechanical face seals with the herringbone-grooves (HG) only and with composite textures of herringbone grooves and circular dimple textures (HGC) were investigated respectively. The reserve suction effect of HG observed in the experiments provided the evidence for the main inducing mechanism of zero leakage in liquid film sealing. The cavitation region of HGC decreases with the rotating speed, and the HG has the reserve effect. The HGC has lower friction torque and larger film thickness compared to HG, indicating better friction performance. Because of the circular dimples, the temperature difference in sealing rings is reduced and the corresponding thermal performance of the mechanical seal has been improved.
引用
收藏
页数:12
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