CN210296013U - Tensile flat submersible oil pump cable - Google Patents
Tensile flat submersible oil pump cable Download PDFInfo
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- CN210296013U CN210296013U CN201921573259.XU CN201921573259U CN210296013U CN 210296013 U CN210296013 U CN 210296013U CN 201921573259 U CN201921573259 U CN 201921573259U CN 210296013 U CN210296013 U CN 210296013U
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Abstract
The utility model discloses a tensile flat oil-submersible pump cable, which comprises a plurality of insulated cable cores with the same structure and an armor layer wrapped outside the insulated cable cores; each insulated cable core sequentially comprises a plurality of power supply units, an insulating layer, an oil-proof layer, a tensile layer and a wrapping layer from inside to outside, wherein the tensile layer is formed by twisting carbon fibers outside the oil-proof layer in a double-layer mode according to the pitch-diameter ratio of 10-13, and the twisting directions of the two layers are opposite; the wrapping tape layer is an ethylene-tetrafluoroethylene copolymer (ETFE) tape for wrapping and tightening. The stranded carbon fiber has very high tensile strength, can protect the power supply unit arranged in the tensile layer from being broken by external pulling force, is formed by carbonizing organic fiber at high temperature, has strong acid and alkali resistance, and can completely protect the internal insulating layer and the oil-proof layer from being damaged by corrosive gas. The belting layer has excellent performance of resisting ultralow temperature and high temperature, can not generate physical or chemical change at the temperature of between 65 ℃ below zero and 150 ℃, and improves the corrosion resistance of the cable.
Description
Technical Field
The utility model relates to a power cable technical field for the oil-submerged pump, concretely relates to is a tensile flat oil-submerged pump cable.
Background
The power cable of the submersible pump is a special cable matched with the submersible electric pump unit and is laid in an oil well, the lower end of the cable is connected with a leading cable, and the upper end of the cable is connected with a ground control cabinet. The oil well is in severe working conditions and is often in environments with strong corrosivity such as high temperature, high pressure, oil-containing gas and the like, so the requirements on the strength, the durability and the corrosion resistance of the submersible pump cable are particularly strong.
Because the length of the cable of the submersible pump is longer and bears a certain load, the cable is easy to break in use, and the problem is solved by forming a chain armor layer by using a steel belt at present. However, the armor layer is easily corroded by underground corrosive media, particularly hydrogen sulfide, and the strength of the submersible pump cable is reduced due to the damage of the armor layer, so that the submersible pump cable is easy to break.
SUMMERY OF THE UTILITY MODEL
In order to overcome above-mentioned present oil-submersible pump cable and receive the corruption easily, destroy the cable inner structure and reduced the technical defect of intensity, the utility model provides a flat oil-submersible pump cable of tensile, inside is equipped with the anticorrosive tensile layer, can improve oil-submersible pump cable's tensile strength greatly.
In order to solve the above problem, the utility model discloses realize according to following technical scheme:
the utility model relates to a tensile flat oil-submersible pump cable, which comprises a plurality of insulated cable cores with the same structure and an armor layer wrapped outside the insulated cable cores;
each insulated cable core sequentially comprises a plurality of power supply units, an insulating layer, an oil-proof layer, a tensile layer and a wrapping layer from inside to outside, wherein the tensile layer is formed by twisting carbon fibers outside the oil-proof layer in a double-layer mode according to the pitch-diameter ratio of 10-13, and the twisting directions of the two layers are opposite;
the wrapping tape layer is an ethylene-tetrafluoroethylene copolymer (ETFE) tape for wrapping and tightening.
Further, the oil-proof layer is made of ethylene-tetrafluoroethylene copolymer (ETFE) through extrusion, and the oil-proof layer is crosslinked through electron beam irradiation crosslinking equipment.
Further, the insulating layer is made of polyether ether ketone (PEEK) through extrusion coating.
Further, each power supply unit is a tinned anaerobic copper wire conductor, and the tinned anaerobic copper wire conductor is a solid conductor or a stranded conductor.
Furthermore, the armor layer is formed by interlocking Monel steel belts.
Further, the number of the insulated cable cores is 3, and the 3 insulated cable cores are horizontally arranged in the armor layer side by side and closely arranged in the armor layer.
Furthermore, PP ropes are filled between the 3 insulation cable cores and the armor layer.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the submersible pump cable in be provided with the tensile layer, this tensile layer adopts the double-deck transposition of carbon fiber in grease proofing layer outside, and the pitch ratio of transposition is 10 ~ 13, the carbon fiber closely arranges, and two-layer transposition opposite direction, its tensile strength are 3.5Gpa, are far above the tensile strength of steel band, can protect to set up and do not receive outside pulling power and break at the inside power supply unit of tensile layer, guarantee the normal work of submersible pump cable. In addition, carbon fiber adopts organic fiber high temperature carbonization to form, has high temperature resistance, and the chemical property of carbon back is very stable, has stronger acid and alkali-resistance ability, can completely protect inside insulating layer and grease proofing layer to receive corrosive gas's destruction, has guaranteed the insulating protection function of insulating layer and grease proofing layer.
2. An ethylene-tetrafluoroethylene copolymer (ETFE) belt is adopted to be wound and fastened on the tensile layer to form a belting layer, the belting layer has excellent performance of resisting ultralow temperature and high temperature, can not generate physical or chemical change at the temperature of-65 ℃ to +150 ℃, has strong corrosion resistance, and can protect the tensile layer from being corroded and damaged and the internal power supply unit from normally working in the oil well environment of a high-strength corrosive environment.
Drawings
The following detailed description of embodiments of the invention is provided with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of a tensile flat submersible pump cable according to the present invention;
in the figure: 1-insulating cable core; 11-a power supply unit; 12-an insulating layer; 13-oil-proof layer; 14-a tensile layer; 15-a belting layer; 2-armor layer.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
As shown in fig. 1, it is a preferable structure of the tensile flat cable for submersible pump according to the present invention.
The cross section of the tensile flat submersible pump cable is preferably flat, the submersible pump cable comprises a plurality of insulating cable cores 1 with the same structure and armor layers 2 wrapping the outside of the insulating cable cores 1, specifically, the number of the insulating cable cores 1 is preferably 3, the insulating cable cores 1 are horizontally arranged in the armor layers 2 in a side-by-side abutting mode, PP ropes are filled between the insulating cable cores 1 and the armor layers 2, the submersible pump cable is prevented from being extruded and deformed by external force, and the 3 insulating cable cores are ensured to be horizontally arranged in a side-by-side abutting mode.
Furthermore, each of the insulated cable cores 1 sequentially comprises a plurality of power supply units 11, an insulating layer 12, an oil-proof layer 13, a tensile layer 14 and a belting layer 15 from inside to outside. Each power supply unit 11 is an oxygen-free copper wire drawn by an oxygen-free copper rod, and a single oxygen-free copper wire can be used for forming a solid conductor or a plurality of oxygen-free copper wires can be used for twisting to form a twisted conductor. The power supply units 11 are twisted to form a power supply cable core to be used as a zero line or a fire line or a ground line of the submersible pump.
The insulating layer 12 is formed by coating polyether ether ketone (PEEK) on the power supply units 11 through an extrusion die of a high-temperature extruder, the polyether ether ketone (PEEK) has a high melting point (334 ℃) and a high glass transition temperature (143 ℃), the continuous use temperature can reach 260 ℃, and the submersible pump cable can be used in a high-temperature oil well environment.
The oil-proof layer 13 is formed by extruding ethylene-tetrafluoroethylene copolymer (ETFE) on the insulating layer 12 through an extrusion die of a high-temperature extruder, and then the oil-proof layer 13 is crosslinked through electron beam irradiation crosslinking equipment, so that the ethylene-tetrafluoroethylene copolymer (ETFE) is changed into crosslinked ethylene-tetrafluoroethylene copolymer (XETFE). The ethylene-tetrafluoroethylene copolymer (ETFE) is crosslinked to improve the use temperature and acid and alkali resistance, so that the high temperature resistance and the corrosion resistance of the oil-proof layer 13 are further improved, and the submersible pump cable is better applied to the oil well environment.
The tensile layer 14 is formed by twisting carbon fibers in a double-layer mode outside the oil-proof layer 13, the twisted pitch-diameter ratio is 10-13, the carbon fibers are closely arranged, the twisting directions of the two layers are opposite, the tensile strength of the carbon fibers is 3.5Gpa and far higher than that of a steel belt, the power supply unit 11 arranged inside the tensile layer 14 can be protected from being broken due to external pulling force, and normal work of the submersible pump cable is guaranteed. In addition, carbon fiber adopts organic fiber high temperature carbonization to form, has high temperature resistance, and the chemical property of carbon back is very stable, has stronger acid and alkali-resistance ability, can completely protect inside insulating layer 12 and grease proofing layer 13 and receive corrosive gas's destruction, has guaranteed insulating layer 12 and grease proofing layer 13's insulation protection function.
The belting layer 15 is formed by wrapping and tightening an ethylene-tetrafluoroethylene copolymer (ETFE) belt on the tensile layer 14, so that the structure of the tensile layer 14 is ensured to be unchanged. In addition, the ethylene-tetrafluoroethylene copolymer (ETFE) belt has excellent performance of resisting ultralow temperature and high temperature, can not generate physical or chemical change at-65 ℃ to +150 ℃, has strong corrosion resistance, and can protect the tensile layer 14 from corrosion damage and the normal work of the internal power supply unit 11 in the oil well environment of high-strength corrosion environment.
The armor layer 2 is formed by interlocking and armoring Monel steel belts, the overlapping rate of the steel belts is not less than 30%, the Monel steel belts have better sulfur corrosion resistance, and the insulating cable cores 1 in the submersible pump cables can be protected from being corroded.
Other configurations of a tensile flat submersible pump cable described in this embodiment are known in the art.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments do not depart from the technical solution of the present invention, and still fall within the scope of the technical solution of the present invention.
Claims (7)
1. A tensile flat submersible pump cable is characterized by comprising a plurality of insulating cable cores (1) with the same structure and armor layers (2) wrapped outside the insulating cable cores (1);
each insulating cable core (1) sequentially comprises a plurality of power supply units (11), an insulating layer (12), an oil-proof layer (13), a tensile layer (14) and a wrapping layer (15) from inside to outside, wherein the tensile layer (14) is formed by double-layer stranding of carbon fibers outside the oil-proof layer (13) according to the pitch-diameter ratio of 10-13, and the stranding directions of the two layers are opposite;
the wrapping layer (15) is an ethylene-tetrafluoroethylene copolymer (ETFE) tape for wrapping and tightening.
2. The tension-resistant flat submersible pump cable according to claim 1, characterized in that: the oil-proof layer (13) is made of ethylene-tetrafluoroethylene copolymer (ETFE) through extrusion, and the oil-proof layer (13) is crosslinked through electron beam irradiation crosslinking equipment.
3. The tension-resistant flat submersible pump cable according to claim 1, characterized in that: the insulating layer (12) is made of polyether ether ketone (PEEK) through extrusion coating.
4. The tension-resistant flat submersible pump cable according to claim 1, characterized in that: each power supply unit (11) is a tinned anaerobic copper wire conductor which is a solid conductor or a stranded conductor.
5. The tension-resistant flat submersible pump cable according to claim 1, characterized in that: the armor layer (2) is formed by Monel steel belt chain armor.
6. The tension-resistant flat submersible pump cable according to claim 1, characterized in that: the number of the insulated cable cores (1) is 3, and the 3 insulated cable cores (1) are horizontally arranged in the armor layer (2) side by side and are arranged in an abutting mode.
7. The tension-resistant flat submersible pump cable according to claim 6, characterized in that: PP ropes are filled between the 3 insulation cable cores (1) and the armor layer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921573259.XU CN210296013U (en) | 2019-06-28 | 2019-09-20 | Tensile flat submersible oil pump cable |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920996931X | 2019-06-28 | ||
| CN201920996931 | 2019-06-28 | ||
| CN201921573259.XU CN210296013U (en) | 2019-06-28 | 2019-09-20 | Tensile flat submersible oil pump cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210296013U true CN210296013U (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921573259.XU Active CN210296013U (en) | 2019-06-28 | 2019-09-20 | Tensile flat submersible oil pump cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210296013U (en) |
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2019
- 2019-09-20 CN CN201921573259.XU patent/CN210296013U/en active Active
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