基于FLUENT的浮动环密封数值模拟分析  

Numerical simulation and analysis on sealing of floating ring based on FLUENT

作　　者：陈静媛[1] 

机构地区：[1]黑龙江科技学院机械工程学院,黑龙江哈尔滨150027

出　　处：《矿山机械》2013年第8期107-110,共4页Mining & Processing Equipment

摘　　要：利用FLUENT软件对浮动环密封进行模拟分析的结果表明,由于楔形效应,浮动环所受液体作用力不均匀且不对称,断面最大压力不在最小间隙处,而在液体流向最小间隙处的楔形区域。压力大的地方阻漏效果好,压力小的地方阻漏效果差;随着转速增加泄漏量减小,间隙内液体阻力增加;随密封环两侧压差增加,泄漏量增大;随偏心距增大,泄漏量增大,密封间隙内压力分布越不均匀。FLUENT was applied to simulate and analyze the sealing of the floating ring. The simulation results showed that： the liquid force acting on the floating ring was non-uniform and asymmetrical due to wedgy effects; the maximum sectional pressure lay in the wedgy area where liquid flowed towards the minimum clearance instead of the smallest clearance; the leaking resistance effects were better in which high pressure existed than in which low pressure existed; with the increase in rotary speed, the leakage amotmt decreased and liquid resistance within clearance increased; with the increase in differential pressure of both sealing sides as well as the increase in eccentricity, the leakage amount increased, and pressure distribution within sealing clearance was more non-uniform.

关 键 词：浮动环 密封 模拟 

分 类 号：TH136[机械工程—机械制造及自动化]