电潜螺杆泵间隙值的优化设计研究与应用

Research and Application of Optimal Design of Clearance Value of Electric Submersible Screw Pump

电潜螺杆泵经常在高速旋转的状态下工作,存在泵转速高、温度高、橡胶变形量大等特点,若遇到突然停机情况,其在高温状态下橡胶无法收缩,可能导致泵抱死、电极烧等严重事故。在起泵初期、泵停机再启动时由于上述原因也经常会出现起泵困难等情况,使泵无法正常工作。因此,本文针对电潜螺杆泵的泵间隙值进行研究,对过盈量和初始过盈量进行计算试验,改进优化电潜螺杆泵的间隙值,有效提高了电潜螺杆泵的工作效率和使用寿命,达到了油田生产提质增效的目的,对无杆泵市场开发有着十分重要的现场实践指导意义。

Electric submersible screw pumps often work under high-speed rotation. They have the characteristics of high pump speed, high temperature, and large rubber deformation. If they encounter a sudden shutdown, the rubber cannot shrink under high temperature conditions, which may cause the pump to serious accidents, such as pump locking, electrode burnt. In the initial stage of starting the pump, when the pump is stopped and then started again due to the above reasons, it is often difficult to start the pump, which makes the pump unable to work normally. Therefore, this paper studies the pump clearance value of the electric submersible screw pump, calculates the interference and the initial interference, improves and optimizes the clearance value of the electric submersible screw pump, and effectively improves the working efficiency and service life of the electric submersible screw pump, and reaches the goal of improving the quality and efficiency of oilfield production, and has very important field practical guiding significance for the development of the rodless pump market.