摘要
基于变工况条件下机械密封端面运动的实验，运用流体膜相变理论，讨论了机械密封在变工况条件下相变半径的变化，提出了解决因相变半径的突变带来的机械密封不稳定的方法，依据变工况汽液两相密封理论，设计了抗变机械密封并成功地应用于１００ＹⅡ－１２０泵上。
Onthebasisoftheexperimentonmechnicalsealendfacemovementundervariableworkingcondition,bytheuseoffluidmembrancephasetransitiontheory,thechangeofphasetransitionradiusofmechanicalsealundervariableworkingconditionisdiscussed.Themethodforresolvingmechanicalsealunstabilitycausedbysuddenchangeofphasetransitionradiusisproposed.Onthebasisofvaporliquidtwophasesealtheoryundervariableworkingcondition,thefluctuationreisistantmechanicalsealisdesignedandempolyedin100Y120pumpsuccessfully.
出处
《石油化工设备技术》
CAS
1999年第3期30-32,共3页
Petrochemical Equipment Technology
关键词
机械密封
端面膜压
汽液两相
炼油厂
泵
Mechanicalseal,Endfacemembrancepressure,Vaporliquidtwophase,Variableworkingcondition
