湖北螺杆泵传动轴询价咨询「螺耐斯」 [螺耐斯)10e361c]"内容: 4、输送方向: 转子泵:输送方向可逆,泵为完全对称的结构。 单螺杆泵:不可以逆转,在反向输送的时候密封处于受压状态。 5、干转: 转子泵:对干转低灵敏度,较长时间的空转泵体的温度也不会上升很高,机械密封在润滑油的浸泡中运行。 单螺杆泵:转子和定子之间有过盈配合,干转时泵体温度急剧升高,轴封没有润滑油润滑,会有过热的危险。 6、检修: 转子泵:很容易,无须拆卸管道,很少的工具,很小的空间,很小的人力。 单螺杆泵:不易,每次维护都需要拆开并移走管道,万向节,定子,转子等部分都要工具才能拆开,维修工作需要较大的空间才能完成,2个人以上才能完成维护工作。
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If you ignore the steam pressure, fluid dynamic friction loss and wellbore liquid pump suction, open an open chamber the maximum production pressure difference is 0.1Mpa, as long as the pressure drop between the inlet and the chamber to form a chamber is less than the pressure difference, the wellbore fluid will be filled with the chamber, then screw pump can achieve the displacement perturbation theory.当流体压力降到蒸汽压力以下,则出现气蚀现象。如果一部分敞开的腔室被流体的蒸汽所充满,当腔室封闭、转子施加正压力后,蒸汽则凝析,会使泵出现脉动和噪音。因此,为使泵能达到其理论排量和正常运转,要求流体压力大于其蒸汽压力,并且吸入压降小于
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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 pressure 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.
![](https://img3.dns4.cn/pic/289285/p14/20200518140908_9181_zs_sy.jpg)
以上信息由专业从事螺杆泵传动轴的螺耐斯于2024/6/28 8:33:15发布
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