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石油矿场用泵中往复式密封一般多为自封式多皮碗(以后称密封圈)密封结构;如压裂泵柱塞密封、泥浆泵活塞杆密封等。这种密封结构因在使用巾密封圈逐渐发生变形和磨损,必须不断地补偿其压紧力,以保证密封装置能正常的工作。对于一般往复式密封结构大多采用卸下压盖,调节垫片数目或厚度,或直接用调节丝扣的方法来达到达一目的。这两种调节压紧力的方法都比较麻烦,又不易掌握。更重要的是调节得不及时或超调节,使得密封圈的
Reciprocating seals in the oil mine pump are mostly self-sealing multi-cup (hereinafter referred to as the seal ring) sealing structure; such as the plunger seal of the fracturing pump, the piston seal of the mud pump and the like. This seal structure due to the gradual deformation and wear in the use of towel ring, it must continue to compensate for the pressure to ensure that the seal can work properly. Most of the general reciprocating seal structure used to remove the gland, adjust the number or thickness of the gasket, or directly adjust the thread method to achieve one purpose. These two methods of adjusting the pressure are more troublesome, but not easy to grasp. More importantly, the adjustment is not timely or overshoot, making the ring