CN209000621U - A kind of high fire-retardance fire resistant flexible coaxial high pressure electrostatic direct current cables - Google Patents
A kind of high fire-retardance fire resistant flexible coaxial high pressure electrostatic direct current cables Download PDFInfo
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- CN209000621U CN209000621U CN201821595374.2U CN201821595374U CN209000621U CN 209000621 U CN209000621 U CN 209000621U CN 201821595374 U CN201821595374 U CN 201821595374U CN 209000621 U CN209000621 U CN 209000621U
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Abstract
The utility model discloses a kind of high fire-retardance fire resistant flexible coaxial high pressure electrostatic direct current cables, it include cable core, the cable core is externally provided with insulating layer, the insulating layer is externally provided with armor, glass fiber is filled between the armor and insulating layer, the armor is externally provided with interior flame-retardant layer, the interior flame-retardant layer is externally provided with outer fire resistant layer, fire retardant cushion fin is distributed with respectively on the excircle side wall of the interior flame-retardant layer and on the inner circumferential side wall of outer fire resistant layer, the fire retardant cushion fin is symmetrically distributed in its outer surface and two-by-two in splayed structure, the outer fire resistant layer is externally provided with inorganic non-metallic buffer layer, the inorganic non-metallic buffer layer is externally provided with oxygen barrier layer, the oxygen barrier layer is externally provided with shielded layer, the shielded layer is externally provided with restrictive coating.The structure design of the utility model is reasonable, has and stops efficiency very well, while also having shield effectiveness, and coating is non-ignitable or fire retardant, and whole stability is good, its service life can be improved.
Description
Technical field:
The utility model relates to construction of cable fields, relate generally to a kind of high fire-retardance fire resistant flexible coaxial high pressure electrostatic direct current
Cable.
Background technique:
High voltage direct current cable uses composite material, is made of the silver-plated copper core flexible cord of multiply, with corrosion-resistant, acid and alkali-resistance, absolutely
The features such as edge performance is good, high pressure resistant, its stability of existing high voltage direct current cable and fire resistance are poor, simply by simple resistance
Fire layer and wrapping layer and the design of the structure of fastened layer, fire resistance can be wrapped with using time side to elapse degradation
Although the stability of layer can reach basic requirement, it is flexible poor, to keep the warping resistance performance of cable poor, to influence
Its service life, it is therefore desirable to make improvements, be broadly divided into two aspects, on the one hand increase flame-retardant layer, on the other hand increase
Oxygen barrier property.
Utility model content:
The utility model aim is exactly in order to make up the defect of prior art, it is coaxially high to provide a kind of high fire-retardance fire resistant flexible
Electrostatic direct current cables is pressed, it can be with using time side passage degradation, flexible poor, anti-folding in order to solve the fire resistance of cable
The problems such as curved performance is poor.
The utility model is achieved through the following technical solutions:
A kind of high fire-retardance fire resistant flexible coaxial high pressure electrostatic direct current cables, includes cable core, it is characterised in that: the cable core
It is externally provided with insulating layer, the insulating layer is externally provided with armor, and glass fiber, institute are filled between the armor and insulating layer
It states armor and is externally provided with interior flame-retardant layer, the interior flame-retardant layer is externally provided with outer fire resistant layer, on the excircle side wall of the interior flame-retardant layer
And fire retardant cushion fin is distributed on the inner circumferential side wall of outer fire resistant layer respectively, the fire retardant cushion fin is symmetrical two-by-two
It in its outer surface and is in splayed structure, the outer fire resistant layer is externally provided with inorganic non-metallic buffer layer, and the inorganic non-metallic is slow
It rushes layer and is externally provided with oxygen barrier layer, the oxygen barrier layer is externally provided with shielded layer, and the shielded layer is externally provided with restrictive coating.
Protrusion is distributed on the outer circumference surface of the insulating layer.
The interior flame-retardant layer and outer fire resistant layer is all made of low smoke, zero halogen polyolefin.
The inorganic non-metallic buffer layer material is mica or ceramic strap, and semiconducting coating is smeared in outer surface, with
Outer fire resistant layer and oxygen barrier layer are in close contact.
The material material of the oxygen barrier layer is the polyphosphazene polymer alkene of semiconductive, high fire-retardance, with inorganic non-metallic fire resisting
Layer and shielded layer are in close contact.
Its principle is: being insulated, it is fixed by armor, between device to its inner conductor by insulating layer
Filled glass fiber silk makes it have preferable softness, by the structure of interior flame-retardant layer and outer fire resistant layer, can increase its resistance
Performance is fired, especially by the corresponding fire retardant cushion fin structure fastened of the two, reaches both reductions contact area, increases simultaneously
Increase the requirement of flame retardant property on the basis of fire-retardant space thickness, rationally, the corresponding stability that fastens is good, by inorganic for design
Nonmetallic buffer layer further stops efficiency, plays certain shield effectiveness, and coating is non-ignitable or fire retardant, or heated carbonization is formed
Carburization zone with thermal insulation is covered on the surface of coated substrate, stops the infiltration of heat and oxygen, reaches flame retardant effect, leads to
The design for crossing oxygen barrier layer plays starvation efficiency, and when burning, coating generates non-flammable compressive gas can oxygen in diluent air
Content makes burning surface oxygen reduce or completely cut off, stops burning, carry out shielding guarantor to overall structure by shielded layer and restrictive coating
Shield, it is above-mentioned that not only there is good oxygen barrier, flame retardant effect, and also whole stability is good, its service life can be improved.
The utility model has the advantages that:
The structure design of the utility model is reasonable, passes through interior flame-retardant layer, outer fire resistant layer, fire retardant cushion fin, inorganic non-metallic
The structure of buffer layer and oxygen barrier layer not only has and stops efficiency very well, while also having shield effectiveness, and coating is non-ignitable or difficult
Combustion, or heated carbonization form the carburization zone with thermal insulation, are covered on the surface of coated substrate, stop the infiltration of heat and oxygen
Thoroughly, reach flame retardant effect, and whole stability is good, its service life can be improved.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment:
Referring to attached drawing.
A kind of high fire-retardance fire resistant flexible coaxial high pressure electrostatic direct current cables, includes cable core 1, and cable core 1 is externally provided with insulating layer
2, the insulating layer 2 is externally provided with armor 3, and glass fiber 4, the armouring are filled between the armor 3 and insulating layer 2
Layer 3 is externally provided with interior flame-retardant layer 5, and the interior flame-retardant layer 5 is externally provided with outer fire resistant layer 6, on the excircle side wall of the interior flame-retardant layer 5 with
And fire retardant cushion fin 7 is distributed on the inner circumferential side wall of outer fire resistant layer 6 respectively, symmetrical point two-by-two of the fire retardant cushion fin 7
Cloth is in its outer surface and is in splayed structure, and the outer fire resistant layer 6 is externally provided with inorganic non-metallic buffer layer 8, the inorganic non-gold
Belong to buffer layer 8 and be externally provided with oxygen barrier layer 9, the oxygen barrier layer 9 is externally provided with shielded layer 10, and the shielded layer 10 is externally provided with restrictive coating 11.
Protrusion 12 is distributed on the outer circumference surface of the insulating layer 2.
The interior flame-retardant layer 5 and outer fire resistant layer 6 is all made of low smoke, zero halogen polyolefin.
8 material of inorganic non-metallic buffer layer is mica or ceramic strap, and semiconducting coating is smeared in outer surface, with
Outer fire resistant layer and oxygen barrier layer are in close contact.
The material material of the oxygen barrier layer 9 is the polyphosphazene polymer alkene of semiconductive, high fire-retardance, with inorganic non-metallic fire resisting
Layer 8 and shielded layer 10 are in close contact.
Claims (5)
1. a kind of high fire-retardance fire resistant flexible coaxial high pressure electrostatic direct current cables, includes cable core, it is characterised in that: outside the cable core
Equipped with insulating layer, the insulating layer is externally provided with armor, and glass fiber is filled between the armor and insulating layer, described
Armor is externally provided with interior flame-retardant layer, and the interior flame-retardant layer is externally provided with outer fire resistant layer, on the excircle side wall of the interior flame-retardant layer with
And fire retardant cushion fin is distributed on the inner circumferential side wall of outer fire resistant layer respectively, the fire retardant cushion fin is symmetrically distributed in two-by-two
Its outer surface and be in splayed structure, the outer fire resistant layer is externally provided with inorganic non-metallic buffer layer, the inorganic non-metallic buffering
Layer is externally provided with oxygen barrier layer, and the oxygen barrier layer is externally provided with shielded layer, and the shielded layer is externally provided with restrictive coating.
2. high fire-retardance fire resistant flexible coaxial high pressure electrostatic direct current cables according to claim 1, it is characterised in that: described
Protrusion is distributed on the outer circumference surface of insulating layer.
3. high fire-retardance fire resistant flexible coaxial high pressure electrostatic direct current cables according to claim 1, it is characterised in that: described
Interior flame-retardant layer and outer fire resistant layer are all made of low smoke, zero halogen polyolefin.
4. high fire-retardance fire resistant flexible coaxial high pressure electrostatic direct current cables according to claim 1, it is characterised in that: described
Inorganic non-metallic buffer layer material is mica or ceramic strap, and semiconducting coating is smeared in outer surface, with outer fire resistant layer and oxygen barrier
Layer is in close contact.
5. high fire-retardance fire resistant flexible coaxial high pressure electrostatic direct current cables according to claim 1, it is characterised in that: described
The material material of oxygen barrier layer is the polyphosphazene polymer alkene of semiconductive, high fire-retardance, close with inorganic non-metallic flame retardant coating and shielded layer
Contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821595374.2U CN209000621U (en) | 2018-09-29 | 2018-09-29 | A kind of high fire-retardance fire resistant flexible coaxial high pressure electrostatic direct current cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821595374.2U CN209000621U (en) | 2018-09-29 | 2018-09-29 | A kind of high fire-retardance fire resistant flexible coaxial high pressure electrostatic direct current cables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209000621U true CN209000621U (en) | 2019-06-18 |
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ID=66802499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821595374.2U Active CN209000621U (en) | 2018-09-29 | 2018-09-29 | A kind of high fire-retardance fire resistant flexible coaxial high pressure electrostatic direct current cables |
Country Status (1)
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| CN (1) | CN209000621U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112927851A (en) * | 2021-01-25 | 2021-06-08 | 郭智昊 | Copper-clad aluminum conductor crosslinked polyethylene insulated power cable |
-
2018
- 2018-09-29 CN CN201821595374.2U patent/CN209000621U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112927851A (en) * | 2021-01-25 | 2021-06-08 | 郭智昊 | Copper-clad aluminum conductor crosslinked polyethylene insulated power cable |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 239300 Anhui city of Chuzhou province Tianchang Industrial Park Jiajia Industrial Park Patentee after: Jiajia Technology Group Co., Ltd Address before: 239300 Anhui city of Chuzhou province Tianchang Industrial Park Jiajia Industrial Park Patentee before: JAJA TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |