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A submersible screw electric pump for wells

A technology of screw and electric pumps, applied in the direction of pumps, pump components, rotary piston pumps, etc., can solve the problems of poor heat dissipation, etc., and achieve the effect of avoiding normal operation, good corrosion resistance, easy to carry and install submersible pumps

Active Publication Date: 2018-05-08
TAIZHOU JIADI PUMP IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Specifically, the technical problem to be solved by the present invention is to provide a submersible screw electric pump for wells to solve many technical problems such as the poor heat dissipation performance of the current submersible screw electric pump.

Method used

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  • A submersible screw electric pump for wells
  • A submersible screw electric pump for wells
  • A submersible screw electric pump for wells

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. However, the uses and purposes of these exemplary embodiments are only used to illustrate the present invention, and do not constitute any form of limitation to the actual protection scope of the present invention, nor limit the protection scope of the present invention thereto.

[0032] Such as figure 1 and figure 2As shown together, the present invention provides a submersible screw electric pump for wells. The submersible screw electric pump for wells includes a machine barrel 6, which is an integral structure and integrally formed. It has high strength and good shape. One end of the machine barrel 6 is equipped with a first bearing seat 13, a sealing ring is arranged between the first bearing seat 13 and the machine barrel 6, and its sealing structure is a static seal. The second bearing seat 7, the first bearing seat 13 and the second bearing seat...

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Abstract

The invention discloses an electric submersible screw pump for a well, and belongs to the technical field of liquid pumps. The electric screw pump comprises a machine barrel of which one end is provided with a first bearing block, wherein a second bearing block opposite to the first bearing block is arranged in the machine barrel; a rotating shaft is rotatably mounted between the first bearing block and the second bearing block; a rotor winding is arranged on the rotating shaft; a stator winding corresponding to the rotor winding is arranged on the machine barrel; the other end of the machine barrel is provided with a bottom cover; an expansion sleeve which is bulged from the bottom cover to the second bearing block is arranged in the machine barrel; an expansion cavity is formed between the expansion sleeve and the bottom cover; a capacitor is arranged between the expansion sleeve and the second bearing block in the machine barrel; the end part of the expansion sleeve is propped to the end part of the capacitor; the machine barrel between the bottom cover and the first bearing block is filled with lubricating oil. The electric submersible screw pump for the well can solve a plurality of technical problems of an existing electric submersible screw pump, such as low heat dissipating performance; the electric submersible screw pump can be widely applied to the down-hole operation.

Description

technical field [0001] The invention relates to an electric pump, more particularly relates to a submersible screw electric pump for wells, belongs to the technical field of liquid pumps, and in particular relates to a submersible screw electric pump for wells. Background technique [0002] At present, the pump body and the motor in most of the existing submersible screw electric pumps are of split structure, the structure is not ideal, and the sealing effect is not good. In addition, since the wire is easy to age and break after being used for a long time, water is easy to enter the aging and broken part of the wire, which affects normal operation and reduces the service life. Moreover, most of the existing well pumps have poor corrosion resistance, which reduces the service life of the well pumps, increases the operating and operating costs, and virtually increases various maintenance costs. [0003] In order to solve the above-mentioned many existing technical defects, p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C2/107F04C11/00F04C15/00
CPCF04C2/107F04C11/008F04C15/0034F04C15/0088F04C15/0096F04C2210/1094
Inventor 陈贤元刘伟
Owner TAIZHOU JIADI PUMP IND CO LTD
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