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7分钟前 武汉螺杆泵连轴杆信赖推荐 螺耐斯环保设备公司[螺耐斯10e361c]内容：2、挑选硬度较高的资料　　硬度作为资料变形才能的首要影响要素，弹性值越大，其对应的资料变形越简单。一般情况下，弹性模量与硬度在理论上不存在独立联系，可是，从试验数据中能够看出弹性模量会随着硬度的添加而添加，应将此考虑到其对螺杆泵密封功能发作的影响。如橡胶衬套触摸压力与内压力呈反比，前者越大，后者越小，但二者改变趋势具有一致性特色。另外，橡胶衬套硬度越大，触摸压力曲线方位也将逐步向上，相对应的密封功能也会有所改进。因而，应挑选硬度较大的橡胶制作螺杆泵定子，以此进步其密封功能。

1、井下螺杆泵的工况，即井筒流体进入敞开腔室的流量大小与敞开腔室的压差和流体粘度等因素有关。1. The working conditi of the downhole screw pump, that is, the flow of the wellbore fluid into the open chamber, is related to the pssure difference of the open chamber and the viscosity of the fluid.Ａ、压差对工况的影响The effect of A and pssure difference on the working condition如果忽略流体的蒸汽压力、井筒动液面和泵吸入口的摩阻损失，则打开一个敞开的腔室所建立的生产压差为0.1Mpa，只要在吸入口及腔室之间的压降小于形成一个腔室所建立的压差，井筒流体将全部充满腔室，则螺杆泵可以达到其理论摄排量。

Ｂ、流体粘度对工况的影响The effect of B and fluid viscosity on the working condition随着流体粘度的增加，由于产生较高的压降使泵的排量下降。As the viscosity of the fluid increases, the displacement of the pump decreases as a result of high pssure drop.Ｃ、泵磨损影响Effect of C and pump wear螺杆泵的工作转速通常为40至500r/min，为减少由于磨损而带来的维修工作量，应当随流体的磨蚀性增加而降低泵的转速。研究表明，泵的磨损与流体流速成正比，但是低的转速对井下泵的使用寿命又产生不利的影响。The working speed of the screw pump is usually 40 to 500r/min. In order to reduce the maintenance workload caused by wear, the speed of the pump should be reduced with the increase of the abrasive wear of the fluid. The study shows that the wear of the pump is proportional to the flow velocity of the fluid, but the low speed of the pump has a negative effect on the life of the downhole pump.