干气密封槽型参数的优化及其数值模拟  

Parameters Optimization and Simulation of Grooves with Gas Sealing

作　　者：常小军[1] 胡伟[1] 丁雪兴[1] 黄义仿[2] 

机构地区：[1]兰州理工大学 [2]兰州石化职业技术学院

出　　处：《化工机械》2011年第4期453-456,共4页Chemical Engineering & Machinery

基　　金：甘肃省自然科学基金资助项目(3ZS061-A25-051);甘肃省教育技术基金资助项目(0915-01)

摘　　要：利用多目标优化方法,构建气膜刚度与泄漏量之比的协调函数,应用maple软件对该目标函数进行近似求解,获得最佳螺旋槽几何参数和密封性能参数。采用CFD软件数值模拟方法,建立流场的几何模型,根据所得进行内平衡计算和密封性能的校核。通过对一个串联式泵用干气密封系统的实例设计,证明可以用该方法进行干气密封系统的优化设计及数值模拟验证。Making use of the multi-objective optimization method, a coordination function of rigidity-to-spillage ratio was derived ; through solving the objective function with Maple program, the optimized geometric parameters were acquired; and basing on the CFD numerical simulation, the geometric model of the flow field was established to make balance calculation and check sealing performance. The gas seal system design for a cascade pump shows that this method can be taken for both optimal design and simulation verification of gas seal system.

关 键 词：干气密封 槽型参数 协调优化 数值模拟 

分 类 号：TQ051[化学工程]