CN212010405U - Composite insulation environment-friendly submersible pump cable - Google Patents

Abstract

The utility model provides a composite insulation environment-friendly submersible pump cable, which comprises a main sheath, wherein a plurality of single conductors which are closely and axially arranged in parallel are arranged in the main sheath, and the outer wall of the main sheath is provided with an armor layer; the continuity of the cable production process can be realized, the operation and manufacturing modes are safe and simple, the damage probability to the insulation performance of the cable is reduced, the non-metal capacity is increased, and the lead-free environment-friendly effect is achieved.

Description

Composite insulation environment-friendly submersible pump cable

Technical Field

The utility model belongs to the technical field of the oil recovery technology, especially, relate to an environment-friendly submersible pump cable of compound insulation.

Background

The existing cable production technology of the submersible pump is completed by a plurality of procedures of mixing raw materials, continuous vulcanization, lead pressing, cabling, armoring and the like. The cable insulation is in direct contact with the lead sheath, and the cable insulation device has the characteristics of complex working procedures and extremely easy damage to the cable insulation caused by multi-procedure manufacturing. The sectional manufacturing process increases the manufacturing cost, cannot ensure the stability of the performance of the cable, and is easy to cause the insulation damage of the cable and the twist crack of the lead sheath particularly in the process of extruding the lead sheath in an insulation manner and cabling a wire core of the lead sheath. The performance stability of the cable cannot be maintained inertially, so that quality problems or accidents occur to the cable, and the occurrence part of the cable is difficult to judge. And thus, there is a need for improvement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compound insulation environment-friendly submersible pump cable to solve the technical problem that current cable exists.

In order to achieve the above object, the utility model discloses a concrete technical scheme of compound insulating environment-friendly submersible pump cable as follows:

the cable for composite insulating environment protecting oil-submerged pump includes one main sheath, several conductors in the main sheath and one armor layer on the outer wall of the main sheath.

In the composite insulating environment-friendly submersible pump cable, the total sheath is an extruded tube type integral coating structure, the extruded tube type integral coating structure is made of high molecular thermoplastic polymer (C-FEP), the thickness range of the extruded tube type integral coating structure is 0.5mm to 3.0mm, and the inner diameter range of the extruded tube type integral coating structure is 20mm to 30 mm; the conductor is made of copper material for electrician and is arranged in the main sheath in a plurality of single-piece type close parallel axial directions; the outer wall of the conductor is provided with a layer of high-temperature-resistant polyimide film, the outer wall of the high-temperature-resistant polyimide film is provided with a first insulating layer, and the outer wall of the first insulating layer is provided with a second insulating layer.

The composite insulating environment-friendly submersible pump cable is characterized in that the thickness of the high-temperature resistant polyimide film ranges from 0.1mm to 0.35 mm; the first insulating layer is a high-pressure rubber layer, the thickness of the first insulating layer ranges from 0.5mm to 3.0mm, and the first insulating layer is extruded and coated on the outer layer of the conductor by a continuous vulcanization extruder; the second insulating layer is made of high-molecular thermoplastic polymer (B-FEP), the thickness of the second insulating layer ranges from 0.25mm to 2.0mm, and the second insulating layer is continuously extruded and coated outside the first insulating layer by an extruding machine, so that the first insulating layer and the second insulating layer form a high-temperature-resistant insulating composite layer; the armor layer is a steel belt, and the thickness of the armor layer ranges from 0.25mm to 0.5 mm.

The utility model discloses a compound insulation environment-friendly submersible pump cable has following advantage: the influence of the lead protective layer on the cable and the environment is avoided. The weight of the cable is reduced, so that the cable is softer and is convenient to lay.

Drawings

Fig. 1 is the utility model discloses compound insulating environment-friendly submersible pump cable structure sketch map.

The notation in the figure is: 1 conductor, 2 high temperature resistant polyimide film, 3 first insulating layer, 4 second insulating layer, 5 total sheath, 6 armor.

Detailed Description

In order to better understand the purpose, structure and function of the present invention, the following description is made in detail with reference to the accompanying drawings.

As shown in fig. 1, the utility model discloses compound insulating environment-friendly submersible pump cable, it includes total sheath 5, is equipped with the conductor 1 that the inseparable parallel axial of several formula was arranged in this total sheath 5, and the 5 outer walls of total sheath are equipped with one deck armor 6.

As shown in fig. 1, the composite insulating environment-friendly submersible pump cable of the present invention has a total sheath 5 of extruded tube type integrally coated structure made of high molecular thermoplastic polymer (C-FEP), a thickness of 0.5mm to 3.0mm, and an inner diameter of 20mm to 30 mm; the conductor 1 is made of copper material for electrician, and a plurality of single conductors are arranged in the main sheath 5 in a close parallel axial manner; the outer wall of the conductor 1 is provided with a layer of high-temperature-resistant polyimide film 2, the outer wall of the high-temperature-resistant polyimide film 2 is provided with a first insulating layer 3, and the outer wall of the first insulating layer 3 is provided with a second insulating layer 4. The thickness range of the high-temperature resistant polyimide film 2 is 0.1mm to 0.35 mm; the first insulating layer 3 is a high-pressure rubber layer, the thickness of the first insulating layer ranges from 0.5mm to 3.0mm, and the first insulating layer is extruded and coated on the outer layer of the conductor by a continuous vulcanization extruder. The second insulating layer 4 is made of high molecular thermoplastic polymer (B-FEP), the thickness of the second insulating layer is 0.25mm to 2.0mm, and the second insulating layer 4 and the first insulating layer are continuously extruded and coated outside the first insulating layer by an extruding machine, so that the first insulating layer 3 and the second insulating layer 4 form a high-temperature resistant insulating composite layer; the armor layer is a steel belt, and the thickness of the armor layer ranges from 0.25mm to 0.5 mm.

The utility model discloses compound insulating environment-friendly submersible pump cable's application method is the same with current EPR insulating lead sheath armor submersible pump round cable, concrete application method: 1. the package can not be damaged during transportation, and the product can be prevented from falling, colliding and impacting. 2. The cable should avoid storage in an overheated, corrosive environment. 3. The cable can be used after the on-off is measured. 4. The lowest ambient temperature should be noted during cable laying installation (preheating of the cable is preferred below-15 ℃). 5. The long-term operating voltage of the cable cannot exceed the rated voltage. 6. The round cable oil gas is suitable for occasions with small gaps between oil pipes and casings. 7. The bending radius should be no less than 500mm when laying. 8. The wiring principle and the wiring method are the same as those of ethylene propylene rubber insulated lead sheath armored submersible pump round cables.

The utility model discloses compound insulating environment-friendly submersible pump round cable is applicable to the power transmission of the electronic oily (dive, latent bittern) pump unit of diving of rated voltage 3.6/6kv and below. The lower end of the cable is connected with the lead wire, and the upper end of the cable is connected with the ground control cabinet, so that the purpose of power and electric energy transmission is achieved.

The utility model discloses compound insulation environment-friendly submersible pump cable's design principle:

according to the use mode of the high-temperature (200 ℃) resistant lead sheath electric submersible pump round cable, the composite insulation environment-friendly electric submersible pump cable replaces a lead layer with high-molecular thermoplastic polymer (B-FEP), and a lead sheath pressing process is omitted under the same temperature resistant condition, so that the weight of the cable is reduced, the flexibility of the cable is enhanced, and the electric performance, the mechanical property and the overall dimension of the cable can completely meet the technical and use requirements of the lead sheath cable. And the influence of lead metal on the cable and the environment is reduced, and an environment-friendly and safe mode is realized. The process difficulty and the laying difficulty in the using process are reduced. The basic principle is that the new material is adopted to replace the traditional material, the manufacturing and the service performance of the high-temperature submersible pump round cable are met, and the purpose of environmental protection is achieved.

The utility model discloses compound insulation environment-friendly submersible pump cable's advantage: the continuity of the cable production process can be well solved. So as to reduce the damage probability to the insulating property of the cable and increase the non-metallic capacity to achieve the lead-free environment-friendly effect. The innovation point is that the metal lead sheath is replaced by thermoplastic organic material, a continuous extrusion mode is adopted, and the manufacturing temperature is lower than that of the lead layer (more than 300 ℃). The same material and process are adopted for the cable-formed total sheath, so that the purpose that the cable insulating layer is hardly damaged can be achieved. The technology can reduce the contact surface between metal and nonmetal in the cable and increase the capacity of nonmetal. Completely achieves lead-free environment protection, and makes the performance and the application range of the cable wider.

The utility model discloses compound insulation environment-friendly submersible pump cable's structural style has decided its technical scheme's succinct and maneuverability. The cable is structurally composed of a power conductor 1, a high-temperature (204 ℃) resistant polyimide film 2, a first insulating layer 3 of a high-pressure rubber skin, a second insulating layer 4 (the environmental temperature is 204 ℃) of a high-molecular thermoplastic polymer, a total sheath 5 made of the thermoplastic polymer and a steel tape armor layer 6. The first insulating layer 3 of its high-pressure rubber skin adopts high temperature high pressure steam vulcanization to extrude, and the second insulating layer 4 of high molecular thermoplastic polymer adopts low temperature to extrude fast, and the extrusion mode of second insulating layer 4 replaces the high temperature high pressure extrusion of current cable and presses the lead sheath, makes operation and manufacturing mode safe simple and easy more to the insulating effect to first insulating layer 3 plays increases the auxiliary action. The composite insulation environment-friendly type oil-submersible pump cable core is also manufactured by extruding the second insulation layer 4 into the main sheath 5 after cabling, so that the efficiency of cable production is improved, the flexibility of the cable production is increased, and the cable production is more convenient to lay and install.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims (2)

1. A composite insulation environment-friendly submersible pump cable is characterized by comprising a main sheath (5), wherein a plurality of single conductors (1) which are closely arranged in parallel and axially are arranged in the main sheath (5), and the outer wall of the main sheath (5) is provided with an armor layer (6);

the main sheath (5) is an extruded tube type integral cladding structure which is made of high molecular thermoplastic polymer, the thickness range of the extruded tube type integral cladding structure is 0.5mm to 3.0mm, and the inner diameter range of the extruded tube type integral cladding structure is 20mm to 30 mm;

the conductor (1) is made of copper material for electricians and is arranged in the main sheath (5) in a plurality of single-piece type close parallel axial directions; the outer wall of the conductor (1) is provided with a layer of high-temperature-resistant polyimide film (2), the outer wall of the high-temperature-resistant polyimide film (2) is provided with a first insulating layer (3), and the outer wall of the first insulating layer (3) is provided with a second insulating layer (4).

2. The composite insulated environment-friendly submersible pump cable according to claim 1, characterized in that the thickness of the high temperature resistant polyimide film (2) ranges from 0.1mm to 0.35 mm;

the first insulating layer (3) is a high-pressure rubber layer, the thickness of the first insulating layer ranges from 0.5mm to 3.0mm, and the first insulating layer is extruded and coated on the outer layer of the conductor by a continuous vulcanization extruder;

the second insulating layer (4) is a high-molecular thermoplastic polymer, the thickness range of the second insulating layer is 0.25 mm-2.0 mm, and the second insulating layer is continuously extruded and coated outside the first insulating layer by an extruder, so that the first insulating layer (3) and the second insulating layer (4) form a high-temperature-resistant insulating composite layer;

the armor layer (6) is a steel belt, and the thickness of the armor layer ranges from 0.25mm to 0.5 mm.

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