新型机械密封实验装置研发

发布时间：2018-03-07 16:15

本文选题：机械密封实验装置　切入点：设计研发　出处：《中国石油大学》2011年硕士论文　论文类型：学位论文

【摘要】：机械密封实验装置主要用于对机械密封以及其他种类的旋转式动密封进行性能实验、密封产品考核实验和模拟现场工况的密封性能实验。本文是针对机械密封实验装置研发项目进行的研究。研发项目要求具有较高的实验转速,结构简单,能够进行新型非接触式机械密封与普通机械密封的液体密封性能实验。本文应用3D设计软件Solidworks进行实验装置设计,比较详细地进行了各个组件的设计和选型,得到了符合研发项目要求的设计结果。除了整机的研发,还对一些重要部件进行了研究。传动轴作为一个重要零件,影响着实验装置的测试精度。对传动轴的设计采用了两种方法:首先是公式计算法,根据强度理论计算出了最小轴径;然后运用软件Simulation进行有限元分析,找到了在实验过程中受力状态下的变形参数,进行了优化设计和验证。针对非接触式机械密封的特点,进行了实验设计。与普通机械密封不同,非接触式机械密封的端面参数决定了密封性能。因此,在实验设计之前,进行了非接触式机械密封参数计算,并采用Flow Simulation进行了两种非接触式液膜机械密封的端面流场分析。详细介绍了分析过程,找到了端面流场的压力、温度等参数的分布规律,对双列交叉动压槽非接触式液膜机械密封的优点进行了验证。根据分析结果,设计了对比实验。
[Abstract]:The mechanical seal experimental device is mainly used to test the performance of mechanical seal and other kinds of rotary dynamic seal. This paper is aimed at the research and development project of mechanical seal experimental device. The research and development project requires high experimental speed and simple structure. It can be used to test the liquid seal performance of new non-contact mechanical seal and general mechanical seal. In this paper, the 3D design software Solidworks is used to design the experimental device. The design and selection of each component are carried out in detail, and the design results that meet the requirements of the R & D project are obtained. Some important parts are also studied. As an important part, the transmission shaft affects the testing accuracy of the experimental device. Two methods are used for the design of the drive shaft: first, the formula calculation method is used. The minimum axis diameter is calculated according to the strength theory, and then the finite element analysis is carried out by using the software Simulation, and the deformation parameters under the stress state during the experiment are found, and the optimum design and verification are carried out. According to the characteristics of non-contact mechanical seal, the experimental design is carried out. Different from ordinary mechanical seal, the end surface parameters of non-contact mechanical seal determine the sealing performance. Therefore, before the experimental design, The parameters of non-contact mechanical seal are calculated, and the flow field on the end surface of two kinds of non-contact hydraulic film mechanical seal is analyzed by Flow Simulation. The analysis process is introduced in detail, and the distribution law of the pressure and temperature of the end surface flow field is found. The advantages of non-contact hydraulic film mechanical seal with double-row cross dynamic pressure groove are verified. According to the analysis results, a comparative experiment is designed.
【学位授予单位】：中国石油大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH136

【引证文献】