Crude Oil Lifting System and Method Utilizing Vane Pump for Conveying Fluid

摘要

A crude oil lifting system and a method utilizing a vane pump for conveying a fluid. The crude oil lifting system comprises: an oil pipe and an oil pump connected to the oil pipe. The oil pump is the vane pump. The vane pump is provided with a cylindrical stator. The stator has arranged therein a drive shaft and a rator sleeved onto the drive shaft. The drive shaft is arranged within the stator along the direction parallel to the length of the stator. An intake plate is arranged at the lower end of the stator. A discharge plate is arranged at the upper end of the stator. The intake plate, the discharge plate, and the stator form a cylindrical cavity. The rotor is arranged between the intake plate and the discharge plate. An intake opening for taking in the crude oil is arranged on the intake plate. A discharge opening for discharging the crude oil is arranged on the discharge plate. The method utilizing the vane pump for conveying the fluid performs lifting by taking in and discharging the fluid in the directions of the ends of the stator.

主权项

1. A crude oil lifting system, characterized in that it comprises a oil pipe and a oil well pump connected to the oil pipe, said oil well pump is a vane pump, said vane pump comprises a plurality of tube shaped stators successively engaged with one another from bottom to top according to a direction from head to tail, a driving shaft provided through the plurality of stators parallel to the length direction of the plurality of stators, at the lower end of each said stator is provided with a suction disc, and at the upper end of each stator is provided with a discharging disc, each said stator forms a tube shaped inner chamber with adjacent suction disc and discharging disc, in each inner chamber is provided with a rotor encasing said driving shaft, said rotor is located between said suction disc and said discharging disc, on said suction disc is arranged a suction inlet for sucking crude oil, and on said discharging disc is arranged a discharging outlet for discharging crude oil, wherein between the two adjacent stators, the discharging disc for a lower stator simultaneously acts as the suction disc for the upper stator, and the discharging outlet for the lower stator simultaneously acts as the suction inlet for the upper stator, said vane pump has a channel for conveying fluid from bottom to top, and the channel for conveying fluid is located in the inner chamber of each said tube shaped stator.