摘要
本文在分析背叶片密封封液能力的基础上，针对目前在确定反压系数Ｋ值时存在的问题，探讨了密封腔内液体运动速度的实际分布规律，建立了实用性较好的Ｋ值理论解析式。并通过优化，确定背叶片密封的最佳结构参数，以适应工程设计的需要。
In this paper, On the basis of analyzing Sealing Capebility for back-blade Seal, practical dis-tributing regulation of liquid moving velocity in Sealing chamber are discussed, and better practicality theoretical formula on countemressure coefficent K are buil,point to occurred problems during determining counterpressure cofficent K. By optimizing,optimum construc- ion parameters of back-blade seal are determined,To meet the needs of engineering design.
基金
河南省自然科学基金
关键词
背叶片密封
封液能力
优化设计
密封
Back-blade seal, Sealing Capability,Optimizing desinn.
