CN204270716U - Continuous steel pipe sheath is with core down-hole single phase power supply cable - Google Patents
Continuous steel pipe sheath is with core down-hole single phase power supply cable Download PDFInfo
- Publication number
- CN204270716U CN204270716U CN201420744601.9U CN201420744601U CN204270716U CN 204270716 U CN204270716 U CN 204270716U CN 201420744601 U CN201420744601 U CN 201420744601U CN 204270716 U CN204270716 U CN 204270716U
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- CN
- China
- Prior art keywords
- steel pipe
- pipe sheath
- power supply
- single phase
- phase power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
Continuous steel pipe sheath relates to a kind of improvement of the single phase power supply construction of cable with core down-hole single phase power supply cable.The utility model provides a kind of sectional area little, and the continuous steel pipe sheath of long service life is with core down-hole single phase power supply cable.The utility model comprises strand type inner wire, it is characterized in that: be disposed with interior fire-retardant strap, inner insulating layer, wrapped type outer conductor, outer fire-retardant strap and outer insulation jacket composite bed outside strand type inner wire, outer insulation jacket composite bed is outside equipped with sealed steel pipe sheath.
Description
Technical field
The utility model relates to a kind of improvement of the single phase power supply construction of cable.
Background technology
The service cable of oil well power consumption equipment is due to its special environmental condition, and cause it to face oil well depth long (generally at 1000 ~ 1200 meters), downhole temperature is high, and borehole pressure is large, and the problem such as greasy dirt, corrosive liquids, gas.
The service cable of existing electric equipment under ground is that employing two conductive cores arranged side by side is wound around mutually, and in the structure of its outside rubber-coated sheath, the sectional area of this cable is large, is unfavorable for going into the well and promoting of cable.Meanwhile, down-hole pressure is large, and the erosion of adjoint corrosive liquids and gas, cause cable sharply to reduce useful life, usually only can use within 1-2 month, just need to change; And due to the sectional area of existing electric equipment under ground service cable large, length is large; Causing it when adopting sheath of better tightness, production cost and significantly promoting from weight average, also cannot bear with the lifting means that cable is supporting; Therefore, the service cable of electric equipment under ground improves useful life, is a difficult problem in this area always.
Summary of the invention
The utility model is exactly for the problems referred to above, provides a kind of sectional area little, and the continuous steel pipe sheath of long service life is with core down-hole single phase power supply cable.
For realizing above-mentioned purpose of the present utility model, the utility model adopts following technical scheme, the utility model comprises strand type inner wire, it is characterized in that: be disposed with interior fire-retardant strap, inner insulating layer, wrapped type outer conductor, outer fire-retardant strap and outer insulation jacket composite bed outside strand type inner wire, outer insulation jacket composite bed is outside equipped with sealed steel pipe sheath.
As a kind of preferred version of the present utility model, spiral winding Baogang net adhesive linkage is set between described outer insulation jacket composite bed and sealed steel pipe sheath.
The beneficial effects of the utility model: 1, wrapped type outer conductor of the present utility model is centered around outside strand type inner wire; Therefore, wrapped type outer conductor and strand type inner wire are concentric structure, and external diameter of the present utility model is significantly reduced.
2, after the utility model external diameter reduces, sealed steel pipe sheath can be set at outermost layer of the present utility model; Make the utility model while raising sealing, also can not increase substantially weight and cost.
3, after the utility model adopts sealed steel pipe sheath, its useful life can be promoted to more than 2 years.
4, the utility model arranges spiral winding Baogang net adhesive linkage between outer insulation jacket composite bed and sealed steel pipe sheath, can improve the adhesive force between cable and sealed steel pipe sheath, increases intensity of the present utility model.
5, the utility model is by arranging interior fire-retardant strap and outer fire-retardant strap, has good flameproof effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1 be sealed steel pipe sheath, 2 be spiral winding Baogang net adhesive linkage in accompanying drawing, 3 be outer insulation jacket composite bed, 4 be outer fire-retardant strap, 5 be wrapped type outer conductor, 6 be inner insulating layer, 7 be interior fire-retardant strap, 8 for strand type inner wire.
Embodiment
The utility model comprises strand type inner wire 8, it is characterized in that: be disposed with interior fire-retardant strap 7, inner insulating layer 6, wrapped type outer conductor 5, outer fire-retardant strap 4 and outer insulation jacket composite bed 3 outside strand type inner wire 8, outer insulation jacket composite bed 3 is outside equipped with sealed steel pipe sheath 1.
As a kind of preferred version of the present utility model, spiral winding Baogang net adhesive linkage 2 is set between described outer insulation jacket composite bed 3 and sealed steel pipe sheath 1.
Described spiral winding Baogang net adhesive linkage 2 is by being spirally wound on outside outer insulation jacket composite bed 3 by steel wire, the mode of then carrying out gluing on steel wire surface is made.
Be understandable that, above about specific descriptions of the present utility model, the technical scheme described by the utility model embodiment is only not limited to for illustration of the utility model, those of ordinary skill in the art is to be understood that, still can modify to the utility model or equivalent replacement, to reach identical technique effect; Needs are used, all within protection range of the present utility model as long as meet.
Claims (2)
1. continuous steel pipe sheath is with core down-hole single phase power supply cable, comprise strand type inner wire (8), it is characterized in that: be disposed with interior fire-retardant strap (7), inner insulating layer (6), wrapped type outer conductor (5), outer fire-retardant strap (4) and outer insulation jacket composite bed (3) outside strand type inner wire (8), outer insulation jacket composite bed (3) is outside equipped with sealed steel pipe sheath (1).
2. continuous steel pipe sheath according to claim 1 is with core down-hole single phase power supply cable, it is characterized in that: arrange spiral winding Baogang net adhesive linkage (2) between described outer insulation jacket composite bed (3) and sealed steel pipe sheath (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420744601.9U CN204270716U (en) | 2014-12-03 | 2014-12-03 | Continuous steel pipe sheath is with core down-hole single phase power supply cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420744601.9U CN204270716U (en) | 2014-12-03 | 2014-12-03 | Continuous steel pipe sheath is with core down-hole single phase power supply cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204270716U true CN204270716U (en) | 2015-04-15 |
Family
ID=52805570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420744601.9U Active CN204270716U (en) | 2014-12-03 | 2014-12-03 | Continuous steel pipe sheath is with core down-hole single phase power supply cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204270716U (en) |
-
2014
- 2014-12-03 CN CN201420744601.9U patent/CN204270716U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |