立式泥浆泵组合密封的设计

泥浆泵采用的动密封通常是单纯性填料密封或机械密封，由于泥浆内含有固体微粒，使动密封极易被磨损丧失密封性能，缩短了泥浆泵的使用寿命。针对这一问题，提出了立式泥浆泵组合密封形式，阐述了密封环密封、副叶轮密封、螺旋密封三种密封的组合方式、密封原理及尺寸设计等；与采用传统密封的泥浆泵进行比较试验，结果表明：采用组合密封的泥浆泵耐磨寿命大大提高。

Design on the Combination Sealing of Vertical-type Mud Pump

Puts forward the vertical-type mud pump sealing compbination. The three sets of seal combinationincluding ring seal, vane seal and spiral seal are discussed on their principles and design, etc. Compared withthe tranditional mud pump seal. The test result shows that the above combination seals can improve the resistancelife for mud pump greatly.