多相混输泵用超高压机械密封性能研究  

Research on the performance of ultra-high pressure mechanical seals for multiphase mixing pumps

作　　者：任宝杰 郝木明[2] 沈宗沼[3] 赵伟龙 郭崇斌 Ren Baojie;Hao Muming;Shen Zongzhao;Zhao Weilong;Guo Chongbin(Dongying Hiscien Sealing Technology Co.,Ltd.,Dongying,Shandong 257000;Sealing Technology Research Institute,China University of Petroleum(East China),Qingdao,Shandong 266580;Hefei General Machinery Research Institute Co.,Ltd.,Hefei,Anhui 230031)

机构地区：[1]东营海森密封技术有限责任公司,山东省东营市257000 [2]中国石油大学(华东)密封技术研究所,山东省青岛市266580 [3]合肥通用机械研究院有限公司,安徽省合肥市230031

出　　处：《炼油技术与工程》2024年第5期33-36,48,共5页Petroleum Refinery Engineering

基　　金：国家重点研发计划项目“混相介质机械密封关键技术研究与产品示范应用”(2020YFB2010002)。

摘　　要：针对超高压混输泵机械密封易磨损失效的问题,介绍了端面槽加工和涂层应用两种策略,用热流固耦合分析方法,分析了浅槽微接触式机械密封在实际应用中的温度分布和端面变形情况,阐述了表面涂层技术的应用,进行了一系列机械密封性能的试验研究。研究结果不仅证实了这些技术在提高机械密封寿命和可靠性方面的有效性,还证实了端面开槽和涂层技术在降低摩擦、改善耐磨性能方面的显著效果。为超高压混输泵机械密封系统的设计和优化提供了重要的理论依据及实践指导。Aiming at the problem of easy wear and failure of mechanical seals in ultrahigh pressure mixed transport pumps,two strategies of end face groove processing and coating application were introduced.Through the heat-fluid-solid coupling analysis method,the temperature distribution and end face deformation of shallow groove micro contact mechanical seals in practical applications were analyzed.The application of surface coating technology was explained,and a series of experimental studies on mechanical seal performance were conducted.These studies revealed the significant effects of end face groove and coating technology in reducing friction and improving wear resistance.The results not only confirm the effectiveness of these technologies in improving the life and reliability of mechanical seals,but also provide an important theoretical basis and practical guidance for the design and optimization of the mechanical sealing system of ultrahigh pressure mixing pumps.

关 键 词：多相混输泵 超高压 机械密封 浅槽微接触 温度场 变形计算 表面涂层 摩擦扭矩 

分 类 号：TH136[机械工程—机械制造及自动化]