石油化工设计 ›› 2019, Vol. 36 ›› Issue (2): 10-14.doi: 10.3969/j.issn.1005-8168.2019.02.004

• 设备技术 • 上一篇    下一篇

某立式多级筒袋泵的轴向力问题及处理措施

李金波   

  1. 中国石化工程建设有限公司,北京 100101
  • 收稿日期:2018-05-28 接受日期:2018-12-19 出版日期:2019-05-30 发布日期:2019-05-30
  • 通讯作者: 李金波,lijinbo@sei.com.cn E-mail:lijinbo@sei.com.cn
  • 作者简介:李金波,男,2008年毕业于北京化工大学化工过程机械专业,硕士,高级工程师,主要从事动设备工程设计工作,已发表论文7篇。联系电话:010-84875140; E-mail: lijinbo@sei.com.cn

Axial Force Problems and Treatment Measures for Vertical Multistage Pumps

Li Jinbo   

  1. SINOPEC Engineering Incorporation, Beijing, 100101
  • Received:2018-05-28 Accepted:2018-12-19 Online:2019-05-30 Published:2019-05-30
  • Contact: Li Jinbo,lijinbo@sei.com.cn E-mail:lijinbo@sei.com.cn

摘要: 针对国内某化工装置内所使用的2台立式多级筒袋泵在开车过程中出现的轴向力问题进行了分析和计算,并提出了更改导轴承材质、叶轮密封环尺寸等改造措施,显著降低了轴向力,解决了因轴向力带来的振动、抱轴、机封泄漏等问题,并增设了温度、振动监控仪表。此外,介绍了离心泵常用的轴向力平衡措施的原理及特点,总结了轴向力问题的处理措施,可为同行业设计人员处理离心泵轴向力问题提供参考。

关键词: 立式多级泵 轴向力, 止推轴承, 应对措施

Abstract: In this paper, the axial force problems of 2 vertical multistage pumps used in a chemical plant in China are analyzed and calculated, and modification measures are put forward including replacing the material of guide bearing and changing the size of the seal ring of impeller. The axial force is greatly reduced, and the vibration, shaft seizing and mechanical seal leakage problems caused by the axial force are solved. Temperature and vibration monitoring instruments are also added. In addition, the principle and characteristics of axial force balancing measures commonly used for centrifugal pumps are introduced, and the treatment measures for axial force are summarized, providing reference for centrifugal pump designer, project engineers and operators to deal with the axial force of centrifugal pump.

Key words: vertical multistage pump, axial force, thrust bearing, countermeasure