PCP pump working principle
PCP pump drainage system is mainly composed of the ground driving device, downhole PCP pump, anchor, frequency conversion control cabinet is composed of four parts. The whole work is by the motor through the driving device on the ground, underground oil pumping rod drives the rotor pump to complete.
Ground driving device: our company's ground driving device is the traditional dynamic sealing rod structure improvement for static sealing and installing spindle locking structure, greatly improving the sealing performance. The transmission mode is: big belt wheel motor drive gear shaft, the power of the motor through the gear shaft to the spindle. Sucker rod through the spindle hole and connected by the card in the upper end of the main axle flat square, drive rod, sucker rod and downhole PCP pump rotor connected, drive PCP pump works.
Downhole PCP pump consists of a rotor and a stator rotor section for single head screw is circular, the inner cavity of the stator is double headed screw; "S" in the cavity is formed between the stator and the rotor, because the rotor in continuous rotating cavity, "S" will continue to spiral, a new cavity formed by a spiral liquid below. At the upper end of the discharge, complete the lifting process. The machine is controlled by frequency conversion control cabinet and the PCP pump monitoring and protection.
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