机械密封在扬子石化离心泵中的应用

Application of mechanical seal to Yangzi petrochemical centrifugal pump

分析了扬子石化各装置离心泵所用机械密封结构型式和特点。针对在实际使用过程中出现的机械密封失效实况,提出了改进机械密封的结构、选择可靠的密封材料、优化辅助密封系统的运行等措施,以延长机械密封的使用寿命,提高机械密封的密封性能,减少泄漏,提高石化装置的经济效益。

The mechanical seal structure type and charcteristics of centrifugal pump in Yangzi Petrochemical Company was analysed. According to the mechanical seal failure appewaed in practical application, through the means such as improving mechanical seal structure, selection reliable seal material, optimization auxiliary seal system operation, the life time of mechanical seal was prolonged, the mechanical seal performance was increased, the leakage was reduced, the economic benefit of petrochemical plant was increased.