CN210295953U - Flat submersible pump cable with temperature measurement and shielding functions - Google Patents
Flat submersible pump cable with temperature measurement and shielding functions Download PDFInfo
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- CN210295953U CN210295953U CN201921573270.6U CN201921573270U CN210295953U CN 210295953 U CN210295953 U CN 210295953U CN 201921573270 U CN201921573270 U CN 201921573270U CN 210295953 U CN210295953 U CN 210295953U
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Abstract
The utility model discloses a flat submersible pump cable with temperature measurement and shielding functions, which comprises a plurality of composite cable cores with the same structure and armor layers wrapped outside the plurality of composite cable cores; each composite cable core sequentially comprises a temperature measuring unit, a plurality of power supply units, an insulating layer, an oil prevention layer, a corrugated copper pipe and an isolating layer from inside to outside, wherein the plurality of power supply units surround the temperature measuring unit; the temperature measuring unit comprises a tinned corrugated copper pipe and a temperature measuring optical fiber arranged in the tinned corrugated copper pipe; the isolation layer is made of ethylene-tetrafluoroethylene copolymer (ETFE) through extrusion. The cable of the submersible pump can stabilize the electromagnetic balance inside the cable, accurately measure the temperature of the cable in real time and feed back the temperature to workers, and avoid faults.
Description
Technical Field
The utility model relates to a power cable technical field for the oil-submerged pump, concretely relates to is a flat oil-submerged pump cable with temperature measurement and shielding function.
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. Due to the limited narrow space of the oil well casing, the submersible pump cable is mainly flat. However, since the flat cable has an asymmetric structure, when power is transmitted, magnetic hysteresis loss is caused by electromagnetic induction generated by imbalance of a magnetic field, so that the cable generates heat and current transmission of the cable is affected. It is therefore desirable to monitor the operating temperature of the submersible pump cable to prevent catastrophic failure.
The invention discloses a temperature measurement monitoring type submersible pump cable with the publication number of CN104934121B, which comprises a pressure gauge cable core, a compensation cable core and a submersible pump cable core, wherein the material of nickel-cadmium and copper-nickel alloy wires is selected by a conductor of the compensation cable core according to the index number of a matched thermocouple, the temperature of a motor is accurately measured by a conductor in the compensation cable core, and a power supply can be timely cut off after the temperature rises so as to avoid the idling of the motor.
However, the temperature measurement monitoring type submersible pump cable controls the power supply work of the cable by measuring the temperature of the motor, and when the power supply cable core is overloaded, the submersible pump cable is difficult to monitor, so that the cable can damage the cable structure due to overload, and power supply faults are caused.
SUMMERY OF THE UTILITY MODEL
In order to overcome above-mentioned flat submersible pump cable and arouse hysteresis loss easily and be difficult to the technical defect of real-time accurate monitoring cable temperature, the utility model provides a flat submersible pump cable with temperature measurement and shielding function can stabilize the inside electromagnetic balance of cable to real-time accurate measurement cable temperature feedback avoids the emergence of trouble to the staff.
In order to solve the above problem, the utility model discloses realize according to following technical scheme:
the utility model relates to a flat submersible pump cable with temperature measurement and shielding functions, which comprises a plurality of composite cable cores with the same structure and armor layers wrapped outside the plurality of composite cable cores;
each composite cable core sequentially comprises a temperature measuring unit, a plurality of power supply units, an insulating layer, an oil prevention layer, a corrugated copper pipe and an isolating layer from inside to outside, wherein the plurality of power supply units surround the temperature measuring unit;
the temperature measuring unit comprises a tinned corrugated copper pipe and a temperature measuring optical fiber arranged in the tinned corrugated copper pipe;
the isolation layer is made of ethylene-tetrafluoroethylene copolymer (ETFE) through extrusion.
Furthermore, the tinned corrugated copper pipe is formed by embossing a copper strip after longitudinal welding through argon arc welding and then tinning through a tinning machine.
Furthermore, the corrugated copper pipe is formed by embossing a copper strip after longitudinal welding through argon arc welding.
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.
Furthermore, each power supply unit is formed by twisting tinned oxygen-free copper wires.
Furthermore, the armor layer is formed by interlocking Monel steel belts.
Further, the number of the composite cable cores is 3, and the 3 composite cable cores are horizontally arranged in the armor layer side by side and closely arranged.
Furthermore, PP ropes are filled between the 3 composite cable cores and the armor layer.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses an adopt wrinkle copper pipe parcel power supply unit, the electromagnetic wave that wrinkle copper pipe produced the power supply unit in each composite cable core cuts off separately, makes the electromagnetic wave of each composite cable core respectively not influence, cuts off with the outside electromagnetic wave of cable simultaneously, and then avoids the submersible pump cable to lead to the unbalanced production hysteresis loss of structure because of the flat, makes the submersible pump cable have stronger electromagnetic shield function.
2. The submersible pump cable in adopt a plurality of power supply unit to encircle on the temperature measurement unit, the temperature measurement unit is including temperature measurement optic fibre and tin-plated wrinkle copper pipe, this tin-plated wrinkle copper pipe's coefficient of heat conductivity is high, can transmit the temperature variation that the power supply unit of circular telegram arouses to temperature measurement optic fibre fast, make temperature measurement optic fibre accurately in real time to the temperature condition of ground staff feedback cable to the power supply operation of control submersible pump. In addition, the power supply unit and the temperature measuring optical fiber are isolated by the tinned corrugated copper pipe, so that the temperature measuring optical fiber can be prevented from being damaged due to twisting of the power supply unit, and the normal work of the temperature measuring optical fiber is ensured.
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 flat submersible pump cable with temperature measurement and shielding functions according to the present invention;
in the figure: 1-a temperature measuring unit; 11-tin-plated corrugated copper pipe; 12-temperature measuring optical fiber; 2-a power supply unit; 3-an insulating layer; 4-oil prevention layer; 5-corrugated copper pipe; 6-an isolating layer; 7-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, the utility model discloses a flat submersible pump cable preferred structure with temperature measurement and shielding function.
The cross section of the flat submersible pump cable with the temperature measuring and shielding functions is preferably flat, the submersible pump cable comprises a plurality of composite cable cores with the same structure and an armor layer 7 wrapping the outer portions of the composite cable cores, specifically, the number of the composite cable cores is preferably 3, the 3 composite cable cores are horizontally arranged in the armor layer 7 side by side and closely arranged, PP ropes are filled between the composite cable cores and the armor layer 7, the submersible pump cable is prevented from being extruded and deformed by external force, and the 3 composite cable cores are ensured to be horizontally arranged closely together.
Furthermore, each composite cable core is from inside to outside including a temperature measurement unit 1, a plurality of power supply unit 2, insulating layer 3, grease proofing layer 4, wrinkle copper pipe 5 and isolation layer 6 in proper order, wherein, a plurality of power supply unit 2 encircles 1 bunches of temperature measurement unit or twists a plurality of power supply unit 2 on 1 surface of temperature measurement unit, makes power supply unit 2 parcel temperature measurement unit 1.
The temperature measuring optical fiber 12 is preferably an optical fiber distributed temperature sensing technology, can continuously detect temperature information of dozens of kilometers of the cable, has low false alarm and missing report rate and is anti-electromagnetic interference, and can accurately detect the actual temperature of the cable of the submersible pump in the power transmission process in real time, thereby controlling the power supply of the cable to control the operation of the submersible pump.
Furthermore, each power supply unit 2 is formed by drawing an oxygen-free copper rod into an oxygen-free copper wire, and the oxygen-free copper wires are twisted after being tinned by a tinning machine. The power supply units 2 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 3 is formed by coating polyether-ether-ketone (PEEK) on the power supply unit 2 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 4 is formed by extruding ethylene-tetrafluoroethylene copolymer (ETFE) on the insulating layer 3 through an extrusion die of a high-temperature extruder, and then crosslinking the oil-proof layer 4 through electron beam irradiation crosslinking equipment to change the ethylene-tetrafluoroethylene copolymer (ETFE) into crosslinked ethylene-tetrafluoroethylene copolymer (XETFE). The ethylene-tetrafluoroethylene copolymer (ETFE) is crosslinked to improve the use temperature and the acid and alkali resistance, so that the high temperature resistance and the corrosion resistance of the oil-proof layer 4 are further improved, and the submersible pump cable is better applied to the oil well environment.
The corrugated copper pipe 5 wraps the oil-proof layer 4 and is formed by embossing a copper strip after argon arc welding longitudinal welding. The corrugated copper pipe 5 separates the electromagnetic waves generated by the power supply unit 2 in each composite cable core, so that the electromagnetic waves of each composite cable core are not influenced, and are separated from the electromagnetic waves outside the cable, thereby avoiding the hysteresis loss generated by the unbalanced structure of the submersible pump cable due to the flat shape, and ensuring that the submersible pump cable has stronger electromagnetic shielding function.
The isolation layer 6 is made of ethylene-tetrafluoroethylene copolymer (ETFE) which is extruded on the corrugated copper pipe 5 through a pipe extruding type mould by a high-temperature extruder, the ethylene-tetrafluoroethylene copolymer (ETFE) has excellent performances of ultralow temperature resistance and high temperature resistance, can not generate physical or chemical changes at the temperature of-65 ℃ to +150 ℃, has strong corrosion resistance, and can protect the corrugated copper pipe 5 from being damaged by corrosion and the normal work of the internal power supply unit 2 in the oil well environment of high-strength corrosion environment.
The armor layer 7 is formed by linkage armor of Monel steel belts, the overlapping rate of the steel belts is not less than 30%, the Monel steel belts have good sulfur corrosion resistance, and the composite cable cores in the submersible pump cables can be protected from corrosion.
Other structures of the flat submersible pump cable with temperature measurement and shielding functions described in this embodiment are referred to in the prior 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 (9)
1. A flat submersible pump cable with temperature measurement and shielding functions is characterized by comprising a plurality of composite cable cores with the same structure and an armor layer (7) wrapping the outer parts of the plurality of composite cable cores;
each composite cable core sequentially comprises a temperature measuring unit (1), a plurality of power supply units (2), an insulating layer (3), an oil-proof layer (4), a corrugated copper pipe (5) and an isolating layer (6) from inside to outside, wherein the temperature measuring unit (1) is surrounded by the plurality of power supply units (2);
the temperature measuring unit (1) comprises a tinned corrugated copper pipe (11) and a temperature measuring optical fiber (12) arranged in the tinned corrugated copper pipe (11);
the isolation layer (6) is made of ethylene-tetrafluoroethylene copolymer (ETFE) through extrusion.
2. The flat submersible pump cable with temperature measurement and shielding functions as claimed in claim 1, wherein: the tinned corrugated copper pipe (11) is formed by embossing a copper strip after longitudinal welding through argon arc welding and then tinning by using a tinning machine.
3. The flat submersible pump cable with temperature measurement and shielding functions as claimed in claim 1, wherein: the corrugated copper pipe (5) is formed by embossing a copper strip after longitudinal welding through argon arc welding.
4. The flat submersible pump cable with temperature measurement and shielding functions as claimed in claim 1, wherein: the oil-proof layer (4) is made of ethylene-tetrafluoroethylene copolymer (ETFE) through extrusion, and the oil-proof layer (4) is crosslinked through electron beam irradiation crosslinking equipment.
5. The flat submersible pump cable with temperature measurement and shielding functions as claimed in claim 1, wherein: the insulating layer (3) is made of polyether ether ketone (PEEK) through extrusion coating.
6. The flat submersible pump cable with temperature measurement and shielding functions as claimed in claim 1, wherein: each power supply unit (2) is formed by twisting tinned oxygen-free copper wires.
7. The flat submersible pump cable with temperature measurement and shielding functions as claimed in claim 1, wherein: the armor layer (7) is formed by Monel steel belt chain armor.
8. The flat submersible pump cable with temperature measurement and shielding functions as claimed in claim 1, wherein: the number of the composite cable cores is 3, and the 3 composite cable cores are horizontally arranged in the armor layer (7) side by side and closely arranged.
9. The flat submersible pump cable with temperature measurement and shielding functions of claim 8, characterized by: PP ropes are filled between the 3 composite cable cores and the armor layer (7).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920996910 | 2019-06-28 | ||
| CN2019209969108 | 2019-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210295953U true CN210295953U (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921573270.6U Active CN210295953U (en) | 2019-06-28 | 2019-09-20 | Flat submersible pump cable with temperature measurement and shielding functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210295953U (en) |
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2019
- 2019-09-20 CN CN201921573270.6U patent/CN210295953U/en active Active
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