CN212392044U - Offshore drilling platform top drive instrument control cable that moves about - Google Patents
Offshore drilling platform top drive instrument control cable that moves about Download PDFInfo
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- CN212392044U CN212392044U CN202021439801.5U CN202021439801U CN212392044U CN 212392044 U CN212392044 U CN 212392044U CN 202021439801 U CN202021439801 U CN 202021439801U CN 212392044 U CN212392044 U CN 212392044U
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Abstract
The utility model discloses an instrument control cable moves about is driven on offshore drilling platform top, include: the control cable is formed by twisting a plurality of control wires and is wrapped with a first wrapping layer, the control wires are formed by twisting a pair of control wire cores and are wrapped with a second wrapping layer, and a sub-shielding layer is wrapped outside the second wrapping layer; the power cables and the control cables are twisted into cable cores, the power cables are formed by twisting power wires, a third wrapping layer is wrapped on the power cables, the power wires are formed by twisting three power wire cores in pairs, and a fourth wrapping layer is wrapped on the power cables; the total wrapping tape layer is wrapped on a total shielding layer outside the cable core, and the total shielding layer is wrapped outside the total wrapping tape layer; the outer sheath layer is wrapped outside the total shielding layer. The utility model has compact structure, greatly improves the strength of the cable; the second band layer of control sinle silk is outward around the package and is divided the shielding layer, and the total band layer of cable core is outward around the package total shielding layer, and double-deck shielding effectively improves the shielding performance of cable.
Description
Technical Field
The utility model relates to a power cable technical field, concretely relates to offshore drilling platform top drive instrument control cable that moves about.
Background
With the vigorous development of oil in China, the number of oil platform cables required has also increased substantially. 10000 km of various cables are needed for building and maintaining offshore oil platforms in China in 2008, nearly 16000 km is achieved in 2009, and the estimated demand exceeds 25000 km in 2020 throughout the year. At present, the oil platform cable in China is basically made into a home, the annual capacity of domestic enterprises is about 8000-10000 km, and a large supply and demand gap exists in industrial production.
The ocean platform control cable needs strong high temperature resistance, corrosion resistance and flame retardance due to a specific operating environment, and is required to be ensured to be not broken or bulged under bending tests with minimum bending radius for at least 30W times; in addition, because of numerous operation platform devices, the operation platform device needs to have higher shielding performance, and the existing cable cannot meet the requirements.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an instrument control cable moves about is driven on offshore drilling platform top to solve above-mentioned problem.
In order to realize the purpose, the technical scheme of the utility model is that:
an offshore drilling platform top drive nomadic instrument control cable comprising:
the control cable is formed by twisting a plurality of control wires, a first wrapping layer is wrapped outside the plurality of control wires, the control wires are formed by twisting a pair of control wire cores, a second wrapping layer is wrapped outside the pair of control wire cores, a sub-shielding layer is wrapped outside the second wrapping layer, a drainage wire is arranged between the sub-shielding layer and the second wrapping layer, and each control wire core comprises a control conductor and a first insulating layer wrapped outside the control conductor;
the power cables and the control cables are twisted into cable cores, the power cables are formed by twisting a plurality of power wires, a third wrapping layer is wrapped on the outer sides of the plurality of power wires, the power wires are formed by twisting three power wire cores in pairs, a fourth wrapping layer is wrapped on the outer sides of the three power wire cores, and each power wire comprises a power conductor and a second insulating layer wrapped outside the power conductor;
a total tape layer wrapped outside the cable core
The total shielding layer is wrapped outside the total wrapping layer;
the outer sheath layer wraps the total shielding layer.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses the control cable and a plurality of power cables transposition formation cable core, the control cable is by a plurality of control lines transposition, and the duplex winding wraps the first band layer, and the control line is by a pair of control core pair twist formation, and the duplex winding wraps the second band layer and divides the shielding layer; the power cable is formed by twisting a plurality of power wires and is wound with a third wrapping layer, the power wires are formed by twisting three power wire cores in pairs and are wound with a fourth wrapping layer, and the power cable is special and compact in structure, so that the strength of the cable is greatly improved;
2. the utility model discloses the second band layer of control core divides the shielding layer around the package outward, and the total band layer of cable core winds the total shielding layer of package outward, and double-deck shielding effectively improves the shielding performance of cable.
On the basis of the above scheme, the utility model discloses can also do following improvement:
furthermore, the control conductor and the power conductor are stranded tinned annealed copper conductors, and fiber reinforcing wires are arranged in the centers of the control conductor and the power conductor.
By adopting the scheme, the strength of the cable is effectively improved, and the outer diameter of the cable is reduced.
Furthermore, the first insulating layer and the second insulating layer are both ethylene propylene rubber insulating layers, and the thickness of the first insulating layer and the thickness of the second insulating layer are 0.90 mm-1.10 mm.
By adopting the scheme, the tensile strength and the elongation at break of the ethylene propylene rubber insulating layer are high, and the tensile strength of the cable is improved; the thickness of the insulating layer is controlled to be 0.9-1.1mm, and the integral uniformity is ensured.
Furthermore, the stranding pitch of a pair of control wire cores of the control wire is smaller than 100mm, and the stranding pitches of adjacent control wires are different.
Further, the first wrapping band layer, the third wrapping band layer and the fourth wrapping band layer are double-layer polyester wrapping band layers, the second wrapping band layer is a double-layer composite non-woven fabric wrapping band layer, and the total wrapping band layer is a double-layer single-side gluing cotton tape.
Furthermore, the drainage wire is a tinned copper stranded wire.
Furthermore, the sub-shielding layer is an aluminum-plastic composite belt.
Furthermore, the total shielding layer is a tinned copper wire braided shielding layer.
Further, the outer sheath layer is a chlorinated polyethylene rubber sheath layer.
By adopting the scheme, the chlorinated polyethylene rubber sheath layer has excellent flame retardant property, high tensile strength and elongation at break, and improved tensile strength of the cable.
Further, the power cable comprises three power cables, and the power cables are formed by twisting four power wires; the control cable is formed by twisting four control wires.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a partially enlarged schematic view of a in fig. 1.
Shown in the figure:
1. a control cable;
2. a control line;
3. a first wrapping layer;
4. a control wire core;
5. a second band layer;
6. dividing a shielding layer;
7. a drainage wire;
8. a control conductor;
9. a first insulating layer;
10. a power cable;
11. a power line;
12. a third layer of tape;
13. a power wire core;
14. a fourth band layer;
15. a second insulating layer;
16. a total band layer;
17. a total shielding layer;
18. an outer jacket layer;
19. fiber reinforcement filaments;
20. a power conductor.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
As shown in fig. 1, the offshore drilling platform top drive floating instrument control cable provided by this embodiment includes a control cable, four power cables, a total tape layer, a total shielding layer, and an outer sheath layer.
The control cable 1 is formed by twisting four control wires 2, and a first wrapping layer 3 is wrapped on the outer sides of the four control wires 2.
The first belting layer 3 is a double-layer polyester belting layer with a thickness of 0.04 mm.
The control wire 2 is formed by twisting a pair of control wire cores 4, the twisting pitch of the pair of control wire cores 4 is smaller than 100mm, and the twisting pitches of the adjacent control wires 2 are different.
A pair of control sinle silk 4 is around being wrapped up in the second band layer 5, and second band layer 5 is double-deck compound non-woven fabrics band layer, and thickness is 0.14 mm.
The second wrapping band layer 5 is wrapped with a sub-shielding layer 6, and the sub-shielding layer 6 is an aluminum-plastic composite band with the thickness of 0.05 mm. And a drainage wire 7 is arranged between the sub-shielding layer 6 and the second belting layer 5, and the drainage wire 7 is a tinned copper stranded wire.
The control wire core 4 comprises a control conductor 8 and a first insulating layer 9 wrapped outside the control conductor 8; the control conductor 8 is a standard IEEE 1580 or IEC 60228 class 5 tinned annealed copper conductor, the stranding pitch ratio of the outermost layer is not more than 7.5 times, and the fiber reinforcing wire 19 is added in the middle, so that the tensile property of the cable is improved.
The first insulating layer 9 is an ethylene propylene rubber insulating layer, and the thickness is controlled to be 0.90 mm-1.10 mm. The tensile strength and the elongation at break of the ethylene propylene rubber insulating layer are high, and the tensile strength of the cable is improved; the thickness of the insulating layer is controlled to be 0.9-1.1mm, and the integral uniformity is ensured.
The four power cables 10 and the control cable 1 are twisted into a cable core, and the power cables 10 are formed by twisting four power wires 11.
A third wrapping tape layer 12 is wrapped on the outer side of the twisted four power wires 11, the third wrapping tape layer 12 is a double-layer polyester wrapping tape layer, and the thickness of the third wrapping tape layer is 0.04 mm.
The power line 11 is formed by twisting three power line cores 13 in pairs, the twisting pitch-diameter ratio is 12-14 times, and the twisting direction is the right direction. After the three power wire cores 13 are twisted, a fourth belting layer 14 is wrapped outside, the fourth belting layer 14 is a double-layer polyester belting layer, and the thickness of the fourth belting layer is 0.04 mm.
The power line 11 includes a power conductor 20 and a second insulating layer 15 wrapped around the power conductor 20.
The power conductor 20 is a standard IEEE 1580 or IEC 60228 class 5 tinned annealed copper conductor, the stranding pitch ratio of the outermost layer is not more than 7.5 times, and the fiber reinforcing wire 19 is added in the middle, so that the tensile property of the cable is improved.
The second insulating layer 15 is an ethylene propylene rubber insulating layer, and the thickness is controlled to be 0.90 mm-1.10 mm. The tensile strength and the elongation at break of the ethylene propylene rubber insulating layer are high, and the tensile strength of the cable is improved; the thickness of the insulating layer is controlled to be 0.9-1.1mm, and the integral uniformity is ensured.
The total belting layer 16 is wrapped outside the cable core, the total belting layer 16 is a double-layer single-side rubberized cotton tape, the rubberized side is in the inner side, and the thickness is 0.20 mm.
The total shielding layer 17 is wrapped outside the total wrapping layer 16; the total shielding layer 17 is a tinned copper wire braided shielding layer, tinned copper wires are adopted for braided shielding, the diameter of each single wire is 0.2mm, the braiding coverage rate is not less than 80%, a layer of composite non-woven fabric wrapping tape with the thickness of 0.14mm is lapped after braiding, and the lapping rate is 20% +/-5% of the bandwidth.
The outer sheath layer 18 wraps the total shielding layer 17, and the outer sheath layer 18 is a chlorinated polyethylene rubber sheath layer. The chlorinated polyethylene rubber sheath layer has excellent flame retardant property, high tensile strength and elongation at break, and high tensile strength of the cable.
In the embodiment, a control cable 1 and three power cables 10 are twisted to form a cable core, the control cable 1 is twisted by four control wires 2 and wound around a first wrapping layer 3, the control wires 2 are twisted by a pair of control wire cores 4 and wound around a second wrapping layer 5 and a sub-shielding layer 6; the power cable 10 is formed by twisting four power wires 11 and is wound with a third wrapping layer 12, the power wires 11 are formed by twisting three power wire cores 13 in pairs and are wound with a fourth wrapping layer 14, and the power cable is special and compact in structure, so that the strength of the cable is greatly improved;
the second band layer 5 of this embodiment control sinle silk 4 winds outward and wraps branch shielding layer 6, and the total band layer 16 of cable core winds outward and wraps total shielding layer 17, and double-deck shielding effectively improves the shielding performance of cable.
In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (10)
1. The utility model provides an offshore drilling platform top drive instrument control cable that moves about which characterized in that includes:
the control cable is formed by twisting a plurality of control wires, a first wrapping layer is wrapped outside the plurality of control wires, the control wires are formed by twisting a pair of control wire cores, a second wrapping layer is wrapped outside the pair of control wire cores, a sub-shielding layer is wrapped outside the second wrapping layer, a drainage wire is arranged between the sub-shielding layer and the second wrapping layer, and each control wire core comprises a control conductor and a first insulating layer wrapped outside the control conductor;
the power cables and the control cables are twisted into cable cores, the power cables are formed by twisting a plurality of power wires, a third wrapping layer is wrapped on the outer sides of the plurality of power wires, the power wires are formed by twisting three power wire cores in pairs, a fourth wrapping layer is wrapped on the outer sides of the three power wire cores, and each power wire comprises a power conductor and a second insulating layer wrapped outside the power conductor;
a total tape layer wrapped outside the cable core
The total shielding layer is wrapped outside the total wrapping layer;
the outer sheath layer wraps the total shielding layer.
2. The offshore drilling platform top drive nomadic instrument control cable of claim 1, wherein the control conductor and the power conductor are stranded tinned annealed copper conductors and fiber reinforcement wires are arranged in the centers of the control conductor and the power conductor.
3. The offshore drilling platform top drive nomadic instrument control cable of claim 1, wherein the first and second insulating layers are both ethylene propylene rubber insulating layers, and the thickness of the first and second insulating layers is 0.90mm to 1.10 mm.
4. The offshore drilling platform top drive nomadic instrument control cable of claim 1, wherein the lay pitch of a pair of the control wire cores of the control wire is less than 100mm and the lay pitches of adjacent control wires are different.
5. The offshore drilling platform top drive nomadic instrument control cable of claim 1, wherein the first, third and fourth band layers are double polyester band layers, the second band layer is a double-layer composite non-woven fabric band layer, and the total band layer is a double-layer single-sided rubberized cotton tape.
6. The offshore drilling platform top drive nomadic instrument control cable of claim 1, wherein the drain wire is a tinned copper stranded wire.
7. The offshore drilling platform top drive nomadic instrument control cable of claim 1, wherein the sub-shielding layer is an aluminum plastic composite tape.
8. The offshore drilling platform top drive nomadic instrument control cable of claim 1, wherein the total shielding layer is a tinned copper wire braided shielding layer.
9. The offshore drilling platform top drive nomadic instrument control cable of claim 1, wherein the outer jacket layer is a chlorinated polyethylene rubber jacket layer.
10. The offshore drilling platform top drive nomadic instrument control cable of any one of claims 1 to 9, comprising three power cables, wherein the power cables are formed by twisting four power wires; the control cable is formed by twisting four control wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021439801.5U CN212392044U (en) | 2020-07-20 | 2020-07-20 | Offshore drilling platform top drive instrument control cable that moves about |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021439801.5U CN212392044U (en) | 2020-07-20 | 2020-07-20 | Offshore drilling platform top drive instrument control cable that moves about |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212392044U true CN212392044U (en) | 2021-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021439801.5U Active CN212392044U (en) | 2020-07-20 | 2020-07-20 | Offshore drilling platform top drive instrument control cable that moves about |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212392044U (en) |
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- 2020-07-20 CN CN202021439801.5U patent/CN212392044U/en active Active
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