CN102467993A - Overlong power cable for three-phase magnesium oxide metal sheath - Google Patents
Overlong power cable for three-phase magnesium oxide metal sheath Download PDFInfo
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- CN102467993A CN102467993A CN2010105331322A CN201010533132A CN102467993A CN 102467993 A CN102467993 A CN 102467993A CN 2010105331322 A CN2010105331322 A CN 2010105331322A CN 201010533132 A CN201010533132 A CN 201010533132A CN 102467993 A CN102467993 A CN 102467993A
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Abstract
The invention relates to the field of a special cable, in particular to an overlong power cable for a three-phase magnesium oxide metal sheath. The overlong power cable for the three-phase magnesium oxide metal sheath comprises a metal conductor, magnesium oxide and a metal sheath and is suitable for the overlong and narrow special environments of high temperature, high pressure, corrosion and explosion prevention, freezing, condensation, water and fire prevention and smashing and drawing resistance. The overlong power cable for the three-phase magnesium oxide metal sheath can be widely applied to magnesium oxide cable production manufacturers to manufacture, and a using and manufacturing blank of cables for Chinese special environments and special overlong purposes can be filled up.
Description
Technical field
The present invention relates to magnesia special cable field, be specially a kind of three-phase oxidation magnesium metallic sheath overlength power cable.
Background technology
At present, the three-phase oxidation magnesium metallic sheath power cable that generally uses, its conductor area surpasses 3 * 10mm
2Hundred meters of cable length less thaies, complex manufacturing technology, production line is long above hundred meters; It is big to take the factory area; Material, man-hour, waste was serious, and cost is higher, the production cycle is longer, overlength install connect lay numerous and diverse, accessory is more; Its production technology is: be inserted in the magnesia core by the good metallic conductor bar of calculating and penetrate in the heavy caliber metal tube again, process through bench tens of a bundle drawing repeatedly, annealing, moulding crops.Can't be at moisture-proof anticorrosive, explosion-proofly anti-pound, HTHP, high humidity are high and cold, overlength is laid long-term use in the impact endurance test shock, the simultaneous adverse circumstances of tension waterproof.
The inventor is inspired according to the welded pipe technological principle, in process application, has obtained brand-new breakthrough, successfully develops three-phase oxidation magnesium metallic sheath overlength power cable.
Summary of the invention
The object of the present invention is to provide a kind of three-phase oxidation magnesium metallic sheath overlength power cable; Solve domestic can't be high and cold at anticorrosion explosion-proof, HTHP, high humidity, in the impact endurance test shock, the simultaneous adverse circumstances of tension waterproof; Overlength is laid long-term use problem, and its operating ambient temperature can reach below 500 degrees centigrade.
Technical scheme of the present invention is:
Three-phase oxidation magnesium metallic sheath overlength power cable is that, high-frequency welding rolling through tubulation by the alloy tape forms tubular sheath, in this simultaneous oxidation magnesium moulding mixture through special equipment filling and fixing metal lead, through in the process of tubulation; Lead is brought in the middle of the sheath by well-balanced extruding; The rolling shape operation that contracts in several roads of online process makes the magnesia densification between conductor and sheath simultaneously, processes qualified overlength cable; Can process the indefinite length cable according to customer requirements.
The invention has the beneficial effects as follows:
1, cable security is reliable.Lay, do not have that pipe fitting joint, anticorrosion explosion-proof, HTHP, high humidity are high and cold, impact endurance test shock, tension waterproof, especially wear that the small-bore pipe overlength is laid, wireline environment is abominable according to different severe environments, overlength; Need not external force introduce the purpose of bringing into, can directly insert, go directly; Collect conveniently; Time saving and energy saving, province's expense.This cable is applicable to using safely in the unconformable adverse circumstances of other cables.
2, cable life is high.Because the cable cover(ing) main part adopts is that intensity is higher, physicochemical property preferably alloy material process, its superiority comes into plain view.
3, cable is easy to processing and manufacturing.Compare with the similar cable of domestic production, cable material, manufacturing and cost of labor obviously reduce, and the construction of cable is simple, material is general, be easy to processing and manufacturing.
4, the operability of cables manufacturing.Cable is a machining, and streamline production alleviates manual labor, ensures the quality of products safety, reliable, convenient; And some similar cables of domestic production do not have overlength property, operate more loaded down with trivial details.
5, the special result of use of cable.Because the overlength performance of cable can reach desirable result of use in special environment for use.Can be widely used in that building, bridge, chemical industry, oil exploitation, coalfield inferior make directly air to open is adopted, clob system air to open is adopted, ultra dark oil well heating system air to open is adopted, and field such as military naval vessel, significant meaning is arranged.
6, cable economy.The present invention compares with the magnesia cable that to have a cost low; Also practice thrift 2/3 in material savings 1/3, man-hour, produce area only take the production of original magnesia cable 1/3, equipment cost is low, use and install that laid down cost is merely 1/2, installing space takies and is merely 1/3; Especially in the narrow and small caliber of overlength, use in high and cold, the impact endurance test shock of anticorrosion explosion-proof, HTHP, high humidity, the simultaneous adverse circumstances of tension waterproof and install, all do not have comparativity with any cable.
The present invention can be widely used in the manufacturing of magnesia cable.
In a word; The present invention has filled up the blank that domestic special purpose cable is produced; Can be high and cold at anticorrosion explosion-proof, HTHP, high humidity, overlength is laid long-term use in the impact endurance test shock, the simultaneous adverse circumstances of tension waterproof; Remarkable advantages is arranged, in the middle of fields such as from now on national defence, chemical industry, oil, coal, skyscraper, large bridge, nuclear power, subway, have splendid market prospects.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure, 1 metallic conductor, 2 magnesia, 3 metallic sheaths
Embodiment
As shown in Figure 1, the magnesia metallic sheath overlength construction of cable of the present invention, this cable by, 1, metallic conductor 2, magnesia 3, metallic sheath belong to and forming, its concrete structure is following:
Cable is provided with metallic conductor, magnesia, metallic sheath.Metallic conductor is a sub-thread overlength copper conductor metal material; Magnesia has superpower thermal endurance, insulating properties, stability; Metallic sheath is high temperature resistant, high pressure, high humidity, corrosion-resistant, fire prevention, explosion-proof, anti-fracture alloy material;, high-frequency welding rolling through tubulation by the alloy tape forms tubular sheath; Through special equipment filling and fixing metal lead, through in the process of tubulation, lead is brought into by well-balanced extruding in the middle of the sheath, simultaneously the rolling shape operation that contracts in several roads of online process in this simultaneous oxidation magnesium moulding mixture; Make the magnesia densification between conductor and sheath; Process qualified overlength cable, can process the indefinite length cable according to customer requirements.
Embodiment 1
Select 1500 meters of metallic conductors;, high-frequency welding rolling through tubulation by the alloy tape forms tubular sheath; In this simultaneous oxidation magnesium moulding mixture through the special equipment filling and fixedly the three-phase plain conductor, through in the process of tubulation, lead is brought into by well-balanced extruding in the middle of the sheath, the rolling shape operation that contracts in while several roads of online process; Make the magnesia densification between conductor and sheath, process qualified overlength cable.
Select 2000 meters of metallic conductors;, high-frequency welding rolling through tubulation by the alloy tape forms tubular sheath; In this simultaneous oxidation magnesium moulding mixture through the special equipment filling and fixedly the three-phase plain conductor, through in the process of tubulation, lead is brought into by well-balanced extruding in the middle of the sheath, the rolling shape operation that contracts in while several roads of online process; Make the magnesia densification between conductor and sheath, process qualified overlength cable.
Claims (5)
1. three-phase oxidation magnesium metallic sheath overlength cable, it is characterized in that: this cable is bonded with each other by metallic conductor (1), magnesia (2), metallic sheath (3) and processes magnesia metallic sheath overlength cable.
2. according to the described three-phase oxidation magnesium of claim 1 metallic sheath overlength cable, it is characterized in that: metallic conductor (1) is a sub-thread overlength copper conductor metal material.
3. according to the described magnesia metallic sheath of claim 1 overlength cable, it is characterized in that: magnesia (2) has superpower thermal endurance, insulating properties, stability.
4. described according to claim three-phase oxidation magnesium metallic sheath overlength cable according to claim 1, it is characterized in that: metallic sheath (3) is high temperature resistant, high pressure, high humidity, corrosion-resistant, fire prevention, explosion-proof, anti-fracture alloy material.
5. described according to claim three-phase oxidation magnesium metallic sheath overlength cable according to claim 1-4; It is characterized in that:, high-frequency welding rolling through tubulation by the alloy tape forms tubular sheath; Through special equipment filling and fixing metal lead, through in the process of tubulation, lead is brought into by well-balanced extruding in the middle of the sheath, simultaneously the rolling shape operation that contracts in several roads of online process in this simultaneous oxidation magnesium moulding mixture; Make the magnesia densification between conductor and sheath; Process qualified overlength cable, can process the indefinite length cable as requested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105331322A CN102467993A (en) | 2010-11-05 | 2010-11-05 | Overlong power cable for three-phase magnesium oxide metal sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105331322A CN102467993A (en) | 2010-11-05 | 2010-11-05 | Overlong power cable for three-phase magnesium oxide metal sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102467993A true CN102467993A (en) | 2012-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105331322A Pending CN102467993A (en) | 2010-11-05 | 2010-11-05 | Overlong power cable for three-phase magnesium oxide metal sheath |
Country Status (1)
| Country | Link |
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| CN (1) | CN102467993A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85109703A (en) * | 1985-12-09 | 1987-06-24 | 国际壳牌研究有限公司 | Long underground interval heating means of distance of high temperature and device |
| CN1110862A (en) * | 1995-02-07 | 1995-10-25 | 赵放 | PTC flexible metal heating cable |
| CN1168557A (en) * | 1995-10-18 | 1997-12-24 | 孔庆华 | Combined conveying system |
| CN2362253Y (en) * | 1999-03-23 | 2000-02-02 | 武志远 | Mineral insulated heating cable |
| CN201057675Y (en) * | 2007-01-29 | 2008-05-07 | 赵放 | Compound core MI heating cable |
| CN101527405A (en) * | 2008-03-04 | 2009-09-09 | 上海电缆研究所 | Cold end connecting device for heating cable and connecting method thereof |
| CN201608922U (en) * | 2010-01-27 | 2010-10-13 | 无锡赛丰仪表有限公司 | Armoured heating cable |
-
2010
- 2010-11-05 CN CN2010105331322A patent/CN102467993A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85109703A (en) * | 1985-12-09 | 1987-06-24 | 国际壳牌研究有限公司 | Long underground interval heating means of distance of high temperature and device |
| CN1110862A (en) * | 1995-02-07 | 1995-10-25 | 赵放 | PTC flexible metal heating cable |
| CN1168557A (en) * | 1995-10-18 | 1997-12-24 | 孔庆华 | Combined conveying system |
| CN2362253Y (en) * | 1999-03-23 | 2000-02-02 | 武志远 | Mineral insulated heating cable |
| CN201057675Y (en) * | 2007-01-29 | 2008-05-07 | 赵放 | Compound core MI heating cable |
| CN101527405A (en) * | 2008-03-04 | 2009-09-09 | 上海电缆研究所 | Cold end connecting device for heating cable and connecting method thereof |
| CN201608922U (en) * | 2010-01-27 | 2010-10-13 | 无锡赛丰仪表有限公司 | Armoured heating cable |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120523 |