Study On Friction Property Of Hydrodynamic Mechanical Seals

With the rapid development of modern industry, mechanical seals are paid more and more attention by people and have became one of the important research subjects today. As to some high parameter operating modes in actual production, the traditional mechanical seals'life-span is relatively short for that they are worn and torn seriously under the high duty, while hydrodynamic mechanical seals can guarantee that the equipments operate in succession for a long time. So to speak, it is a kind of extremely effective measure to adopt hydrodynamic mechanical seals as the high duty seals. But according to document and relevant articles published, there is no perfect theory system in the research on friction property of hydrodynamic mechanical seals and lacks the relevant experiments to prove and supplement the existing theory so far.The function mechanism of hydrodynamic mechanical seals is complicated, so this literary adopts a research method which combines theory analysis and experiment research together. According to the theoretical analysis methods of hot elastohydrodynamic mechanical seals, building up geometry model of the hydrodynamic mechanical seals, using the mechanical seal's structure parameters and the corresponding work condition parameters, this literary carries on theory calculation to the hydrodynamic mechanical seals to get the theoretical data about main parameters of the hydrodynamic mechanical seals'friction property. Then, through building up the hydrodynamic mechanical seals'friction property test-bed, carrying on a great deal of experiments, this literary gets the corresponding actually measure data under the same condition with the theory calculation by data-processing of the experimental data. After that, by carrying on comparative analysis with the theoretical data and the actually measure data, drawing curves of the hydrodynamic mechanical seals'friction property, this literary proves the superiority of hydrodynamic mechanical seals under the high duty.This literary puts great emphasis on the study of the hydrodynamic mechanical seals'friction property, by theory analysis to determine the theory calculate method of relevant parameters and carry on theory calculate about them, by building up friction property test-bed and carrying on lots of experiments to get important curves, by the comparative analysis of experimental data and theory calculation to get the final conclusion.