CN104582038A - Super-long voltage withstanding heating cable for oil well - Google Patents
Super-long voltage withstanding heating cable for oil well Download PDFInfo
- Publication number
- CN104582038A CN104582038A CN201310516878.6A CN201310516878A CN104582038A CN 104582038 A CN104582038 A CN 104582038A CN 201310516878 A CN201310516878 A CN 201310516878A CN 104582038 A CN104582038 A CN 104582038A
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- China
- Prior art keywords
- heat
- layer
- cable
- tracing pipe
- oil well
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- 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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Abstract
The invention discloses a super-long voltage withstanding heating cable for an oil well. The super-long voltage withstanding heating cable comprises an outer sheath, a cable core and a tracing pipe, wherein the cable core is arranged in the outer sheath, and comprises a conductor layer, an insulating layer and an inner sheath; the insulating layer coats the conductor layer; the inner sheath coats the insulating layer; the interior of the tracing pipe is coated with a filling layer; the outer wall of the tracing pipe and the outer wall of the inner sheath are connected through a heat conduction layer; the outer sheath coats a heat preservation layer; the heat preservation layer coats the inner sheath, the tracing pipe and the heat conduction layer. In the invention, not only can heat generated by the conductor layer be dissipated in time, so that heat accumulation to cause spontaneous combustion of the cable is avoided, but also dissipated heat is saved to preserve heat of a whole structure of the cable, so that the use performance of the cable at low temperature is ensured.
Description
Technical field
The present invention relates to field of cable technology, particularly relate to a kind of oil well overlength pressure resistant type heating cable.
Background technology
Cable is the carrier of electric power conveying, its use scenes is boundless, also makes in different application scenarioss also not identical to the requirement of cable performance, particularly under some such as low temperature environment, existing cable in use faces problems, such as to pull and in bending process, cable easily damages, and, in low temperature environment, cable jacket easily becomes broken, more fragile, urgently to be resolved hurrily.
Summary of the invention
For prior art Problems existing, the object of the invention is to propose a kind of oil well overlength pressure resistant type heating cable, possess higher flexibility and toughness, when using at low ambient temperatures, not fragile.
A kind of oil well overlength pressure resistant type heating cable, comprise oversheath, be placed in cable core in oversheath and heat tracing pipe, described cable core is made up of conductor layer and the insulating barrier of coating conductor layer and the inner sheath of coated insulation layer, coated packed layer in heat tracing pipe, be connected by heat-conducting layer between heat tracing pipe outer wall with inner sheath outer wall, the coated heat-insulation layer of oversheath, the coated inner sheath of heat-insulation layer, heat tracing pipe, heat-conducting layer.
Oversheath adopts polythene material to make.
Heat-insulation layer adopts polyurethane material to make.
Heat-conducting layer adopts heat conduction cement production systD.
The present invention in actual use, the heat that not only conductor layer produces can shed in time, accumulation of heat can not be made, cable is caused to occur spontaneous combustion, and the heat given out can be saved, for the insulation of whole cable structure, thus ensure the serviceability that cable uses at low ambient temperatures.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of oil well overlength pressure resistant type heating cable that the present invention proposes.
Embodiment
As shown in Figure 1, Fig. 1 is the structural representation of a kind of oil well overlength pressure resistant type heating cable that the present invention proposes.
With reference to Fig. 1, the present invention proposes a kind of oil well overlength pressure resistant type heating cable, comprise oversheath 1, be placed in cable core in oversheath 1 and heat tracing pipe 2, described cable core is made up of conductor layer 3 and the insulating barrier 4 of coating conductor layer 3 and the inner sheath 5 of coated insulation layer 4, coated packed layer 6 in heat tracing pipe 2, be connected by heat-conducting layer 7 between heat tracing pipe 2 outer wall with inner sheath 5 outer wall, the coated heat-insulation layer 8 of oversheath 1, the coated inner sheath 5 of heat-insulation layer 8, heat tracing pipe 2, heat-conducting layer 7.Oversheath 1 adopts polythene material to make.Heat-insulation layer 8 adopts polyurethane material to make.Heat-conducting layer 7 adopts heat conduction cement production systD.
In actual use, conductor layer 3 heating power, its heat reaches heat tracing pipe 2 via insulating barrier 4 and inner sheath 5 and heat-conducting layer 7, and reaches the whole construction of cable by heat tracing pipe 2.
The heat that not only conductor layer 5 produces can shed in time, can not accumulation of heat be made, cause cable to occur spontaneous combustion, and the heat given out can be saved, for the insulation of whole cable structure, thus ensure the serviceability that cable uses at low ambient temperatures.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (4)
1. an oil well overlength pressure resistant type heating cable, it is characterized in that, comprise oversheath (1), be placed in the cable core in oversheath (1) and heat tracing pipe (2), described cable core is made up of conductor layer (3) and the insulating barrier (4) of coating conductor layer (3) and the inner sheath (5) of coated insulation layer (4), coated packed layer (6) in heat tracing pipe (2), be connected by heat-conducting layer (7) between heat tracing pipe (2) outer wall with inner sheath (5) outer wall, oversheath (1) coated heat-insulation layer (8), heat-insulation layer (8) coated inner sheath (5), heat tracing pipe (2), heat-conducting layer (7).
2. oil well overlength pressure resistant type heating cable according to claim 1, is characterized in that, oversheath (1) adopts polythene material to make.
3. oil well overlength pressure resistant type heating cable according to claim 1, is characterized in that, heat-insulation layer (8) adopts polyurethane material to make.
4. oil well overlength pressure resistant type heating cable according to claim 1, is characterized in that, heat-conducting layer (7) adopts heat conduction cement production systD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310516878.6A CN104582038A (en) | 2013-10-26 | 2013-10-26 | Super-long voltage withstanding heating cable for oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310516878.6A CN104582038A (en) | 2013-10-26 | 2013-10-26 | Super-long voltage withstanding heating cable for oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104582038A true CN104582038A (en) | 2015-04-29 |
Family
ID=53096960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310516878.6A Pending CN104582038A (en) | 2013-10-26 | 2013-10-26 | Super-long voltage withstanding heating cable for oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104582038A (en) |
-
2013
- 2013-10-26 CN CN201310516878.6A patent/CN104582038A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |
|
| WD01 | Invention patent application deemed withdrawn after publication |