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 2 6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PHNi6 0A +15 %WC。现场使用证明 ,改进后的柱塞密封副使用效果很好。
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 improved. 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 techniques to strengthen the plunger surface are also laid down. The strengthening method on the surface of plunger is spray-welding technology. And the material used in the spray welding technology is PHNi60A +15% WC. The effect of the application of the improved plunger seal pair is better than before.
出处
《西南石油学院学报》
CSCD
2000年第3期88-90,共3页
Journal of Southwest Petroleum Institute
基金
中国石油天然气集团公司项目!研究成果的部分内容 (部 14 1)
关键词
压裂泵
柱塞
密封
磨损
密封副
油层压裂
fracturing pump, plunger, sealing, finite element method, wear , testing
