钻井泥浆泵在高压情况下输送泥浆,且泥浆粘度高、含砂量高,有时还具有腐蚀性,其工作条件极为恶劣。因此,泵的活塞与缸套、阀体与阀座、拉杆与盘根这三对作相对运动的密封件很容易损坏。这三对密封件就是人们通常所说的泥浆泵易损件。在一般情况下,易损件的寿命反映泥浆泵的工作质量。实践证明,泥浆泵的工作质最直接影响钻井的速度、质量 Drilling mud pumps deliver mud under high-pressure conditions and have high mud viscosity, high sand content, and sometimes corrosive conditions, which make them extremely harsh. Therefore, the pump piston and cylinder liner, valve body and seat, rod and packing these three pairs of relative movement of the seal is very easy to damage. These three pairs of seals are commonly known as mud pump wearing parts. Under normal circumstances, the life of wearing parts reflect the quality of mud pump work. Practice has proved that the quality of the mud pump work most directly affect the drilling speed, quality