【作者】 薛婷； 王瑜； 张凯； 孔令镕； 张伟； 刘宝林；

【Author】 XUE Ting;WANG Yu;ZHANG Kai;KONG Lingrong;ZHANG Wei;LIU Baolin;School of Engineering and Technology,China University of Geosciences(Beijing);Key Laboratory of Deep GeoDrilling Technology,MNR;

【机构】 中国地质大学(北京)工程技术学院； 自然资源部深部地质钻探技术重点实验室；

【摘要】 非接触式端面密封运行稳定,端面之间无直接摩擦,能使密封寿命大大延长,作为各种旋转机械的轴端密封有着广泛的应用前景,对于深井、超深井钻探钻具的运行和钻井效率有着重要意义。非接触式端面密封以在端面进行构型设计的方式产生动压效应,提高密封的承载能力。本文阐述端面表面沟槽形状、端面变形、温粘效应和空化效应对端面密封的流体动压效应产生的影响,归纳总结流体动压效应理论、实验和应用的研究现状,并展望未来非接触式端面密封的发展方向。更多还原

【Abstract】 Non-contact face seal has a stable operation and no direct friction between the faces,which can greatly extend the seal life and has a wide application prospect as a shaft seal for various rotary machinery.Non-contact face seals are designed with a configuration on the face to produce a hydrodynamic pressure effect to improve the load carrying capacity of the seal.This paper describes the influence of groove shapes,face deformation,temperature-stick effect and cavitation effect on the hydrodynamic pressure effect of face seals,summarizes the current research status on the theory,experiment and application of hydodynamic pressure effect,and prospects the future development direction of non-contact face seals.更多还原