往复柱塞泵盘根密封压缩量的实验研究
Experimental Study on Compression of Gland Packing Sealing in Reciprocating Plunger Pump

往复柱塞泵高压液力端密封性能直接影响其工作效率和使用寿命。本文通过实验方式研究往复泵填料密封中盘根压缩量与密封效果及使用寿命的关系。实验结果显示，5%盘根压缩量的填料密封每小时泄漏12 ml，盘根与柱塞间平均摩擦力约为69.9 N。这种盘根压缩量既实现了良好的液力密封效果，又保持了较小的盘根损耗，可平衡密封效果与使用寿命，利用该结论可对往复泵填料密封的设计和装配进行指导。通过处理寿命实验中的实验数据得到拟合函数关系，可对后同类型实验中盘根密封泄漏量和盘根与柱塞之间的摩擦力进行定量预估计算。
The high-pressure hydraulic end sealing performance of a reciprocating plunger pump directly affects its operational efficiency and lifespan. This study investigates the relationship between the compression volume of the packing seal in reciprocating pumps and its sealing effectiveness and lifespan through experimental methods. Experimental results indicate that a packing seal with a 5% compression volume leaks 12 ml per hour, with an average friction force between the packing and plunger of approximately 69.9 N. This compression volume achieves a balance between effective hydraulic sealing and minimal packing wear, providing guidance for the design and assembly of packing seals in reciprocating pumps. By analyzing experimental data from lifespan tests, a fitted functional relationship is obtained, enabling quantitative estimation of packing seal leakage and friction force between the packing and plunger in similar experiments in the future.