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Circular oil-submerged pump cable

A submersible pump, circular technology, applied in the field of circular submersible pump cables, can solve the problems of short service life, hysteresis loss, poor compactness, etc., and achieve the effects of small mutual interference, improved compactness, and compact structure.

Active Publication Date: 2014-07-23
ANHUI TIAN CHANG INSTR FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The general circular submersible pump cable has poor compact structure. During power transmission, the electromagnetic induction caused by the imbalance of the magnetic field will cause hysteresis loss, which will cause the cable to heat up and shorten the service life.

Method used

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  • Circular oil-submerged pump cable

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Embodiment Construction

[0017] like figure 1 as shown, figure 1 It is a structural schematic diagram of a circular submersible pump cable proposed by the present invention.

[0018] The cable proposed by the present invention may include two or more wires, and the cable in this embodiment exemplarily includes three wires.

[0019] refer to figure 1 , a circular submersible pump cable proposed by the present invention includes a cable core composed of an aluminum-plastic tube 1 and three wires 2 .

[0020] The aluminum-plastic pipe 1 has a circular cross section, with an aluminum foil layer in the middle and plastic layers on both sides. The wire 2 includes a conductor 21 located in the middle. The conductor 21 is twisted from a plurality of tinned oxygen-free copper wires. The conductor 21 is covered with an insulating layer 22 to ensure mutual insulation between the wires 2 and realize the power transmission function of the cable.

[0021] In the process of arranging the aluminum-plastic pipe an...

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Abstract

The invention discloses a circular oil-submerged pump cable which comprises a supporting core, a plurality of wires, a polytetrafluoroethylene wrapping layer, an oil-proof layer, a sheath layer and an armor layer. Each wire comprises a conductor located in the middle and an insulating layer wrapped on the conductor, and the cross section of each wire is in a sector shape. The wires surround the supporting core to be longitudinally arranged in parallel to from a cable core with the circular cross section. The inner arc of each wire tightly abuts against the periphery of the supporting core, and the side faces of every two adjacent wires abut against each other. The cable core is wrapped by the polytetrafluoroethylene wrapping layer. The polytetrafluoroethylene wrapping layer is wrapped by the oil-proof layer. The oil-proof layer is wrapped by the sheath layer. The sheath layer is wrapped by the armor layer. The circular oil-submerged pump cable is compact and stable in structure, resistant to high temperature, even in magnetic field distribution, excellent in oil-proof performance and capable of being used safely in the oil well environment for a long time.

Description

technical field [0001] The invention relates to the field of cables, in particular to a circular submersible pump cable. Background technique [0002] The submersible pump cable is used as the passage part of the electric submersible pump unit to transmit electric energy, and it has been working in the environment of high temperature, high pressure and corrosive gas for a long time. In order to make the electric pump unit run normally for a long time, the front cable matching the threshold is required to have high electrical performance: high temperature resistance, high pressure resistance and corrosion resistance. Therefore, compared with ordinary power cables, in addition to having the same insulation, the former cables also have the particularity of adapting to the downhole operation of oil wells, mainly in that the structure and insulating materials are different from general power cables. [0003] According to the shape, the submersible pump power cable can be divided...

Claims

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Application Information

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IPC IPC(8): H01B9/02H01B7/18H01B7/20H01B7/28H01B7/29H01B7/42
CPCY02A30/14
Inventor 魏金春彭群朱立春王冠云
Owner ANHUI TIAN CHANG INSTR FACTORY
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