PTA装置尾透推力轴承温度高问题的分析及对策  

The problem of high temperature of thrust bearing in PTA plant analysis and countermeasures

作　　者：沈意凌 SHEN Yi-ling(Chemicai Plant of Yangz-Petrochemical Co.,Lt+.,Nanjing 210048,China)

机构地区：[1]扬子石油化工有限公司化工厂,江苏南京210048

出　　处：《聚酯工业》2020年第2期1-5,共5页Polyester Industry

摘　　要：主要从机组布置、运行维护、轴承结构以及润滑油品质等方面分析了2#PTA装置尾气透平大齿轮轴位推力轴承温度高的问题。通过对大齿轮轴主推力轴承结构进行优化,有效改善了推力面与推力轴承之间的单位油膜特性,大大提升了推力轴承运行的可靠性,从而解决了制约大型机组长周期安全稳定运行的问题。This paper mainly analyzes the high temperature of the thrust bearing in the shaft position of the big gear of the tail gas turbine of 2×PTA unit from the aspects of the unit layout,operation and maintenance,bearing structure and lubricating oil quality.By optimizing the structure of the main thrust bearing of the large gear shaft,the unit oil film characteristics between the thrust surface and the thrust bearing are effectively improved,and the reliability of the operation of the thrust bearing is greatly improved,so as to solve the problem of restricting the safe and stable operation of the large turbine in the long period.

关 键 词：PTA 尾气透平 推力轴承 温度 可靠性 油膜 

分 类 号：TQ245.12[化学工程—有机化工]