CN112762023A

CN112762023A - Integrated one-way transmission oil-gas mixed transportation pump

Info

Publication number: CN112762023A
Application number: CN202110028511.4A
Authority: CN
Inventors: 杜媛英; 权辉; 任兴星; 钱晨
Original assignee: Lanzhou University of Technology
Current assignee: Lanzhou University of Technology
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-05-07

Abstract

The invention discloses an integrated unidirectional transmission oil-gas mixed transportation pump, which comprises a volute, impellers and guide vanes, wherein the guide vanes are positioned between the two impellers, a rotating shaft is arranged in each impeller, the rotating shaft is connected with the impellers through keys, two ends of the rotating shaft are connected with the volute through bearings, a driven gear is arranged in the middle of the rotating shaft, a motor is arranged in each guide vane, a transmission gear meshed with the driven gear is arranged at the output end of the motor, a penetrating pipe is arranged on each guide vane and penetrates through the guide vanes and the volute, the motor is arranged in the guide vanes between the two impellers, the integrated design of a pump body and the motor is realized, the distance from the motor to the tail end of the rotating shaft is shortened, the damage to a sealing bearing between the volute and the rotating shaft is reduced, the tail end of the rotating shaft rotates more stably, the noise of the mixed transportation pump during working is reduced, because the motor is arranged in the, the rotating shaft does not need to penetrate through the volute, so that the problem of sealing at the joint of the rotating shaft and the volute is avoided.

Description

Integrated one-way transmission oil-gas mixed transportation pump

Technical Field

The invention relates to an oil-gas mixed transportation pump, in particular to an integrated one-way transmission oil-gas mixed transportation pump.

Background

At present, in the existing oil-gas mixed transportation pump, a motor is arranged at one end of a pump body, so that a rotating shaft needs to penetrate through the whole pump body, and the farther the rotating shaft is away from the motor, the larger the swing amplitude of the rotating shaft is, and the radial imbalance of the tail end of the rotating shaft is caused; meanwhile, when the rotating shaft penetrates through the volute, the rotating shaft is connected with the volute through the sealing bearing, and the sealing effect of the sealing bearing is increasingly poor under the influence of radial unbalance of the rotating shaft, so that the leakage condition is easy to occur for a long time, the working performance of the pump is influenced, and the pump is seriously damaged; and the motor is all set up the one end at the pump body, still can lead to axial vibration and noise all big, defect such as operation unstability.

Disclosure of Invention

The technical task of the invention is to provide an integrated unidirectional transmission oil-gas mixture transfer pump aiming at the defects of the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: one-way driven oil-gas multiphase pump of integral type, including the volute, and be located two impellers and a stator in the volute, wherein the stator is located between two impellers be equipped with the pivot in the impeller, the pivot is passed through the key and is connected with the impeller, the both ends of pivot are passed through the bearing and are connected with the volute the pivot middle part is equipped with driven gear be equipped with the motor in the stator, the output of motor be equipped with driven gear meshing's drive gear be equipped with the poling on the stator, the poling runs through stator and volute.

Further improvement: the pivot is two sections, the motor is double-end motor, double-end motor is located between two sections pivots, double-end motor's both ends are passed through the flange and are directly connected with the pivot.

The invention has the advantages that: the motor is arranged in the guide vane between the two impellers, the integrated design of the pump body and the motor is realized, the distance from the motor to the tail end of the rotating shaft is shortened, the damage to the sealing bearing between the volute and the rotating shaft is reduced, the sealing effect of the sealing bearing is improved, meanwhile, the distance from the motor to the tail end of the rotating shaft is shortened, the tail end of the rotating shaft is enabled to rotate more stably, the noise of the mixed transportation pump during working is reduced, the motor is arranged in the guide vane, the two ends of the rotating shaft are connected with the volute, the rotating shaft does not need to penetrate through the volute, and therefore the sealing problem of the joint of the rotating shaft and the volute is avoided.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is a schematic structural view of the double-headed motor of the present invention.

Detailed Description

The invention is described in detail below with reference to the drawings.

As shown in fig. 1 and 2, the integrated unidirectional transmission oil-gas mixture transport pump includes a volute 1, two impellers 2 and a guide vane 3 located in the volute 1, wherein the guide vane 3 is located between the two impellers 2, a rotating shaft 4 is arranged in the impeller 2, the rotating shaft 4 is connected with the impeller 2 through a key 41, two ends of the rotating shaft 4 are connected with the volute 1 through a bearing, a driven gear 7 is arranged in the middle of the rotating shaft 4, a motor 5 is arranged in the guide vane 3, a transmission gear 6 meshed with the driven gear 7 is arranged at an output end of the motor 5, a through pipe 8 is arranged on the guide vane 3, and the through pipe 8 penetrates through the guide vane 3 and the volute 1; the wire of motor 5 can be followed and passed through in the poling 8, provides the power for motor 5, and the power that motor 5 produced at this moment drives pivot 4 and rotates after transmission of drive gear 6 and driven gear 7, and then drives impeller 2 and rotate.

When the rotating shaft 4 is provided with two sections, the motor is a double-end motor 51, the double-end motor 51 is positioned between the two sections of the rotating shaft 4, two ends of the double-end motor 51 are directly connected with the rotating shaft 4 through the flange 9, and therefore power generated by the double-end motor 51 is transmitted to the rotating shaft 4 to drive the impeller 2 to rotate.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. One-way driven oil-gas multiphase pump of integral type, including the volute, and be located two impellers and a stator in the volute, its characterized in that: the stator is located between two impellers be equipped with the pivot in the impeller, the pivot is passed through the key and is connected with the impeller, the both ends of pivot are passed through the bearing and are connected with the volute the pivot middle part is equipped with driven gear be equipped with the motor in the stator, the output of motor be equipped with driven gear meshing's drive gear be equipped with the poling on the stator, the poling runs through stator and volute.

2. The integrated unidirectional-transmission oil-gas mixture transfer pump as claimed in claim 1, characterized in that: the pivot is two sections, the motor is double-end motor, double-end motor is located between two sections pivots, double-end motor's both ends are passed through the flange and are directly connected with the pivot.