本文關(guān)鍵詞：液膜密封潤滑狀態(tài)轉(zhuǎn)變及性能分析　出處：《潤滑與密封》2017年11期 　論文類型：期刊論文

  更多相關(guān)文章： 液膜密封 潤滑狀態(tài) 臨界轉(zhuǎn)速 參數(shù)優(yōu)化

【摘要】：以螺旋槽液膜密封為研究對(duì)象,求解考慮流量因子的平均雷諾方程,研究工況參數(shù)和結(jié)構(gòu)參數(shù)對(duì)密封端面潤滑狀態(tài)轉(zhuǎn)變規(guī)律的影響。結(jié)果表明:隨著轉(zhuǎn)速升高,液膜厚度與液膜承載系數(shù)逐漸增加,粗糙峰接觸力不斷減小至消失,實(shí)現(xiàn)摩擦副分離;低黏度介質(zhì)對(duì)臨界轉(zhuǎn)速的影響顯著;隨著壓差的增大,臨界轉(zhuǎn)速與閉合力均呈線性增大的趨勢(shì);臨界轉(zhuǎn)速隨槽深、螺旋角增大而增大,隨槽數(shù)、槽壩比增大而減小,結(jié)構(gòu)參數(shù)中槽深對(duì)其影響最為顯著,為提高潤滑狀態(tài)轉(zhuǎn)變能力,建議取槽深3~7μm,螺旋角14°~18°,槽數(shù)16~24,槽壩比2/3~5/6。
[Abstract]:The spiral groove seal as the research object, solving Reynolds equation considering the average flow factor, influence of operating parameters and structure parameters on the sealing face transition of lubrication condition. The results showed that: with the increase of speed, the film thickness and the film bearing coefficient increased, asperity contact force decreases to disappear, realize the friction separation; effect of low viscosity medium on critical speed significantly; with the pressure increasing, the critical speed and the closing force showed a linear increasing trend; critical speed increases with the groove depth, the helix angle increases with the number of slots and slot dam than decreases, affect the groove depth of the most significant structure parameters for to improve the lubrication state transformation ability, take 3~7 groove depth m, helix angle of 14 DEG ~18 DEG 16~24, groove number, slot dam 2/3~5/6.

【作者單位】： 中國石油大學(xué)(華東)化學(xué)工程學(xué)院;
【基金】：國家自然科學(xué)基金項(xiàng)目(51375497) 山東省自主創(chuàng)新及成果轉(zhuǎn)化專項(xiàng)(2014ZZCX10102-4)
【分類號(hào)】：TH117.2;TH136
【正文快照】： )j縥縥縥縥縥縥，

本文編號(hào)：1374515