An Improved Design of Spiral Groove Mechanical Seal

作     者：周剑锋 顾伯勤 陈晔 ZHOU Jianfeng;GU Boqin;CHEN Ye

作者机构：Fluid Sealing and Control Laboratory College of Mechanical and Power Engineering Nanjing University of Tech-nology Nanjing 210009 China 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2007年第15卷第4期

页      码：499-506页

摘      要：The coupling effect among the flow of fluid film, the frictional heat of fluid film and the thermal deformation of sealing rings is inherent in mechanical seals. The frictional heat transfer analysis was carded out to optimize the geometrical parameters of the sealing rings, such as the length, the inner radius and the outer radius. The geometrical parameters of spiral grooves, such as the spiral angle, the end radius, the groove depth, the ratio of the groove width to the weir width and the number of the grooves, were optimized by regarding the maximum bearing force of fluid film as the optimization objective with the coupling effect considered. The depth of spiral groove was designed to gradually increase from the end radius of spiral groove to the outer radius of end face in order to decrease the weakening effect of thermal deformation on the hydrodynamic effect of spiral grooves. The end faces of sealing rings were machined to form a divergent gap at inner radius, and a parallel gap will form to reduce the leakage rate when the thermal deformation takes place. The improved spiral groove mechanical seal possesses good heat transfer performance and sealing ability.

主 题 词：spiral groove mechanical seal heat transfer optimum design bearing force leakage rate 

学科分类：0710[理学-生物科学类] 0830[工学-生物工程类] 081704[081704] 0817[工学-轻工类] 08[工学] 081701[081701] 0703[理学-化学类] 

核心收录：

D　O　I：10.1016/S1004-9541(07)60115-3

馆 藏 号：203624834...