西南石油大学学报(自然科学版) ›› 2000, Vol. 22 ›› Issue (3): 88-90.DOI: 10.3863/j.issn.1000-2634.2000.03.024

• 油气地面工程 • 上一篇    下一篇

压裂泵柱塞密封副研究

黄志强1 周锡容1 杨启明1 蒲洪春2
  

  1. (1.西南石油学院机械系,四川南充637001; 2.胜利油田河口采油机修厂)
  • 收稿日期:2000-01-21 修回日期:1900-01-01 出版日期:2000-08-20 发布日期:2000-08-20
  • 通讯作者: 黄志强

STUDY OF PLUNGER SEAL PAIR IN FRACTURING PUMP

Huang Zhi-qiang1 ZhouXi-rong1 Yang Qi-ming1 et al 

  

  1. ( Southwest Petroleum Inst.)
  • Received:2000-01-21 Revised:1900-01-01 Online:2000-08-20 Published:2000-08-20
  • Contact: Huang Zhi-qiang

摘要: 对压裂泵柱塞密封副失效原因进行了分析研究;利用有限元法对密封圈进行了计算分析。在此基础上,对密封圈的材料和结构进行了改进设计。采用26型氟橡胶和填充聚四氟乙烯两种材料制造密封圈,并且交互排列组合在一起使用;密封圈唇部夹角为90°增至114°;通过磨损试验,对柱塞表面强化材料进行了筛选,制订了相应的强化工艺。柱塞表面强化方法为喷焊处理,喷焊材料为PHNi60A+15%WC。现场使用证明,改进后的柱塞密封副使用效果很好。

关键词: 压裂泵, 柱塞, 密封, 有限元法, 磨损, 试验

Abstract: On the basis of the analysis of the failure cause of plunger-seal pair in fracturing pump and the FEM analysis of the seal ring, the material and structure of seal ring are further im-proved. The sealing rings made of PTFE and 26-Fluor rubber and used by installing alternately with its lip angle from 900 to 1140. In addition, the strengthening material on the surface of
plunger was selected by wear test. And the corresponding tech-niques to strengthen the plunger surface are also laid down. The strengthening method on the surface of plunger is spray-weld-ing technology. And the material used in the spray welding technology is PHNi60A +15% WC. The effect of the applica-tion of the improved plunger seal pair is better than before.

Key words: fracturing pump, plunger, sealing, finite ele-ment method, wear, testing

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