两种螺旋角干气密封环端面摩擦特性试验研究

发布时间：2018-03-04 18:03

本文选题：干气密封　切入点：螺旋槽　出处：《摩擦学学报》2017年03期 　论文类型：期刊论文

【摘要】：干气密封环端面的接触摩擦不容忽视,在槽型设计与优化时也应该考虑端面的摩擦特性.利用端面摩擦磨损试验机,分别对16°和18°两种螺旋角的螺旋槽干气密封环进行测试,通过对比分析磨损量、摩擦温度、摩擦系数以及表面粗糙度来讨论密封环的摩擦特性和两种螺旋角对端面摩擦性能的影响.结果表明:18°螺旋角试验的磨损量、摩擦温升和摩擦系数均稍大于16°螺旋角试验,说明18°螺旋角试件的磨损比16°螺旋角的更加剧烈;石墨环被螺旋槽覆盖的外圈粗糙度的变化有较大的差异,内圈粗糙度变化相似,说明槽型参数的改变对石墨环磨损的影响主要体现在外圈.试验结果为今后端面摩擦学性能的研究及槽型优化提供了依据.
[Abstract]:The contact friction of the end surface of the dry gas seal ring can not be ignored, and the friction characteristics of the end face should also be taken into account in the design and optimization of the groove. The spiral groove dry gas seal ring with 16 掳and 18 掳spiral angles is tested by using the end face friction and wear tester, respectively. The friction characteristics of the seal ring and the effect of two helical angles on the friction performance of the end face are discussed by comparing and analyzing the wear quantity, friction temperature, friction coefficient and surface roughness of the seal ring. The friction temperature rise and friction coefficient are slightly larger than 16 掳helical angle test, which shows that the wear of 18 掳helical angle specimen is more severe than that of 16 掳helical angle, and the variation of outer ring roughness of graphite ring covered by spiral groove is quite different, and the change of inner ring roughness is similar. It is shown that the influence of the change of groove parameters on the wear of graphite ring is mainly reflected in the outer ring. The experimental results provide a basis for the study of tribological properties of the end face and the optimization of the groove shape in the future.
【作者单位】：兰州理工大学石油化工学院;南京科技职业学院江苏省流体密封与测控工程技术研究开发中心;
【分类号】：TH117.1;TH136

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