氨泵机械密封液膜相态稳定性方法的研究与应用  

Study and Application of Methods of Fluid Film Phase State Stability of Mechanical Seal for Ammonia Pump

作　　者：李宝彦[1] 李淑华[1] 

机构地区：[1]大庆石油学院机械系,黑龙江省安达市151400

出　　处：《润滑与密封》2001年第2期55-55,57,共2页Lubrication Engineering

摘　　要：通过对在用氨泵的情况调查 ,应用相变理论对机械密封端面流体膜的合理性和稳定性进行了分析研究 ,确定出控制端面液膜压力和利用冲洗来控制液膜温度 ,从而保证液膜的稳定。该方法应用于大庆天然气公司的氨泵上 ,密封性能和使用寿命均得到了较大的提高 ,改善了工作环境 。By investigating service situation of ammonia pump, the analysis and study are made for the reasonableness and stability of fluid film in the end of mechanical seal by phase change theory, and the means of keeping fluid film stability are put forward with controlling fluid film pressure on end face and controlling the temperature by using flushing The means is applied ammonia pumps in Daqing Natural Gas Company The satisfied results are obtained in sealing performance and use life, the work environment becomes better, and the economic benefit is notable

关 键 词：机械密封 流体膜 相态 稳定性 冲洗 氨泵 制冷 

分 类 号：TB65[一般工业技术—制冷工程] TH136[机械工程—机械制造及自动化]