西南石油大学学报(自然科学版) ›› 1999, Vol. 21 ›› Issue (1): 63-66.DOI: 10.3863/j.issn.1000-2634.1999.01.016

• 钻采工艺与设备 • Previous Articles     Next Articles

RESEARCH ON THE LUBRICATION MECHANISM OF PLUNGER-SEAL PAIR IN FRACTURING PUMP

Zhu Weibing Zhou Xirong
  

  1. Southwest Petroleum Inst
  • Received:1998-07-09 Revised:1900-01-01 Online:1999-02-20 Published:1999-02-20
  • Contact: Zhu Weibing

Abstract: Based on the theory of fluid hydraulic lubrication, the plunger-seal pair of fracturing pump in OPI-1800AWS is discussed in detail. The mechanism of film formation under forced lubrication conditions is studied, and the minimum film
thickness between the plunger and the seal is decided. During the out-let and in-let stroke, the conditions of fluid hydraulic lubrication is met, i.e., there is a parallel film between the plunger and the seal, so the friction is decreased and the lifetime of the plunger-seal pair extended. This suggests that forced
lubrication plays a key role in the operation of fracturing pumps.

Key words: fracturing pump, plunger, sealing, lubrication

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