Multi-functional mixed transportation pump

Abstract

The invention relates to the technical field of petroleum mechanical equipment, and particularly discloses a multi-functional mixed transportation pump. The multi-functional mixed transportation pumpis characterized in that the multi-functional mixed transportation pump includes a pump cylinder, a pump shaft, a sucking head and a discharging head, wherein the lower end of the pump cylinder is connected with the sucking head, the upper end of the pump cylinder is connected with the discharging head, a pump cylinder cavity is internally and sequentially provided with a guide wheel and an impeller from the top to the bottom, the lower end surface of the guide wheel is attached to the lower end surface of the impeller, shaft holes matched with the pump shaft are correspondingly formed in thesucking head, the discharging head, the impeller and the guide wheel, the pump shaft penetrates in the pump cylinder cavity along the axial line of the pump cylinder, and penetrates through the shaftholes of the sucking head, the guide wheel, the impeller and the discharging head, the pump shaft is fixedly connected with the impeller, and moving gaps are correspondingly reserved between the shaftholes of the sucking head, the guide wheel and the discharging head and the shaft. The multi-functional mixed transportation pump has the function of multiphase flow or mixed transportation of high viscosity liquid, liquid mediums with high viscosity, high temperature, high solid content or rich in gas can be better transported, phenomena of blocking, cavitation erosion and gas locking are eliminated to maximum extent, and the multi-functional mixed transportation pump has the characteristics that operational adaptation is high, reliability is high, the pump efficiency is high, and energy saving is achieved.

Description

technical field [0001] The invention relates to the technical field of petroleum machinery equipment, in particular to a multifunctional mixed transportation pump. Background technique [0002] At present, crude oil transportation uses submersible pump as the power mechanism. The existing submersible pump is a multi-stage centrifugal pump structure, which is mainly composed of impeller, guide casing, pump shaft, pump casing and upper and lower joints, etc., which has made contributions to mixed oil production. , but it also has the following shortcomings or deficiencies: [0003] ①When the multi-phase liquid to be transported contains a large proportion of gas, it is easy to cause air lock, so that the pump cannot work; [0004] ② When transporting high-viscosity media or media containing solid particles, the pump efficiency is low, and even affected by high viscosity, the pump cannot work effectively; [0005] ③ It is not suitable for harsh working conditions, and the per...

AI Technical Summary

Problems solved by technology

[0003] ①When the multi-phase liquid to be transported contains a large proportion of gas, it is easy to cause air lock, so that the pump cannot work;

[0004] ② When transporting high-viscosity media or media containing solid particles, the pump efficiency is low, and even affected by high viscosity, the pump cannot work effectively;

[0005] ③ It is not suitable for harsh working conditions, and the performance of the pump is seriously reduced when the medium contains gas, solid particles, high viscosity, etc.;

[0006] ④ High requirements on the state of the medium, poor adaptability to the medium with different proportions of multiphase fluid

[0015] Moreover, the artificially lifted fluid often has high viscosity or multiphase flow in nature, so the existing submersible pumps have the problems of low working efficiency and poor power output stability under the above working conditions, which are difficult to solve

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