湖北螺杆泵机械密封服务为先「螺耐斯」[螺耐斯10e361c]内容:1、自吸能力: 转子泵:在转速大于200rpm的时候可以产生很好的自吸能力,允许短时间的干转。 单螺杆泵:很好的自吸能力,但是要避免泵干运转,不能超过30秒。 2、压力范围: 转子泵:0-12bar。 单螺杆泵:多级泵可达48bar。 3、占地面积: 转子泵:由于设计紧凑,所要的占地面积较小,并且检修转子泵时不需要额外的场地,口径还可以按客户要求调整。 单螺杆泵:根据级数不同,大小也不同,但是由于螺杆很长,维修时需要很大的空间,而且每一型号的泵法兰口径只有一种。
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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.
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以上信息由专业从事螺杆泵机械密封的螺耐斯于2024/8/11 10:04:55发布
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