流体机械2017，Vol.45Issue(7)：17-21,87,6.DOI:10.3969/j.issn.1005-0329.2017.07.004
基于流固耦合的接触式机械密封端面泄漏率的研究
Study on the Fluid-solid Coupled of the Leakage Rate of Seal Face for Contacting Mechanical Seal
摘要
Abstract
As a result of not considering the influence of seal face deformation,large error will appear while the leakage rate of contacting mechanical seal is calculated by empirical formula.The influence of deformation of seal face was taken in account of and the fluid-solid coupling method was adopted to calculate the leakage rate of seal face by using ANSYS and MATLAB software. The influencing factors of the leakage rateQ of seal face were studied,including pressure of sealed media pi,pressure-difference of seal face Δp,spring pressure psp and comprehensive roughness of seal faceσ.Based on experiment,the accuracy of numerical solution was verified under the different sealing medium pressure.The results showed that the errors between numerical solutions and experimental values were smaller than empirical formula solution and experimental values.The leakage rate accelerates with the increase of comprehensive roughness and pressure-difference of seal face,increases with the increase of sealed media and decelerates increasing with the increase of spring pressure.The leakage rate of seal face with numerical method was applied and the influencing factors was analysed,expecting to provide certain guiding significance for competing the theory study of failure analysis on contacting mechanical seal.关键词
流固耦合/接触式机械密封/泄漏率/密封端面变形Key words
fluid-solid coupled/contacting mechanical seal/leakage rate/seal face deformation分类
机械制造引用本文复制引用
张鹏,李双喜,王梁,蔡纪宁..基于流固耦合的接触式机械密封端面泄漏率的研究[J].流体机械,2017,45(7):17-21,87,6.基金项目
国家重点基础研究发展计划(973)项目(2012CB026000) （973）
