CN207233424U - Coal mine flame-retardant cable - Google Patents
Coal mine flame-retardant cable Download PDFInfo
- Publication number
- CN207233424U CN207233424U CN201721272149.0U CN201721272149U CN207233424U CN 207233424 U CN207233424 U CN 207233424U CN 201721272149 U CN201721272149 U CN 201721272149U CN 207233424 U CN207233424 U CN 207233424U
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- CN
- China
- Prior art keywords
- layer
- retardant
- coal mine
- fire
- flame
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a kind of coal mine flame-retardant cable, including some cored wires and cored wire is wrapped in interior insulation sheath, and cored wire includes conductor and the refractory insulating layer being wrapped in outside conductor；Insulation sheath includes fire-resistant wrapping tape layer, fire-retardant inner restrictive coating, double-tape armor layer, halogen-free flameproof flexible sheath layer and the anti-aging protective layer wrapped up layer by layer successively from the inside to the outside；Flame retardant filler strip is filled between fire-resistant wrapping tape layer and refractory insulating layer.Coal mine flame-retardant cable described in the utility model, intensity is higher, anti-aging, flame-retardant and insulate, and adapts to job requirement stringent in colliery.
Description
Technical field
The utility model belongs to field of cables, more particularly, to a kind of coal mine flame-retardant cable.
Background technology
Cable is typically by several or the cable of similar rope that several groups of conducting wires (every group at least two) are twisted, every group
Mutually insulated between conducting wire, and be often twisted into around a center, whole outside is surrounded by the coating of high-insulation.Cable has
Interior energization, electric power or information, are transferred to the conducting wire at another place by the feature of external insulation at one.It is general for the cable in colliery
It is required that all relatively stringenter, the environment in colliery is poor, moist, and temperature height etc., existing intensity is relatively low, it is impossible to external force mechanical force
It is fixed, carrying external mechanical force is weak, and service life is short.
The content of the invention
In view of this, the utility model is directed to a kind of coal mine flame-retardant cable, to adapt to work stringent in colliery
It is required that.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：
A kind of coal mine flame-retardant cable, including some cored wires and cored wire is wrapped in interior insulation sheath, cored wire bag
Include conductor and the refractory insulating layer being wrapped in outside conductor；Insulation sheath includes the fire-resistant wrapping tape wrapped up layer by layer successively from the inside to the outside
Layer, fire-retardant inner restrictive coating, double-tape armor layer, halogen-free flameproof flexible sheath layer and anti-aging protective layer；Fire-resistant wrapping tape layer with it is resistance to
Flame retardant filler strip is filled between fiery insulating layer.
Further, the refractory insulating layer is mica powder layer.
Further, the flame retardant filler strip is molded by polyvinyl chloride.
Further, the fire-resistant wrapping tape layer is formed by mica tape along helical wound.
Further, the fire-retardant inner restrictive coating is alkali-free glass fibre layer.
Further, the halogen-free flameproof flexible sheath layer is molded by Radiation Crosslinked Polyethylene.
Further, the anti-aging protective layer forms for the coating of cable pitch.
Relative to the prior art, coal mine flame-retardant cable described in the utility model has the advantage that：
(1) coal mine flame-retardant cable described in the utility model, refractory insulating layer are wrapped in outside conductor, are especially connected in cable
Place is met, because of the breakage of insulation sheath, refractory insulating layer plays the two-layer effect of fire resisting and insulation；Flame retardant filler strip filling insulation is outer
Intracutaneous gap, is relatively fixed cored wire, prevents cored wire from mutually wearing, and colleague's flame retardant filler strip plays flame retardant effect, prevents fire
Calamity is spread from cable connection along cable；Fire-resistant wrapping tape layer, improves the corrosion-resistant of inside, and carrying mechanical force is strong, while further
Improve the fire resistance of cable；Fire-retardant inner restrictive coating protection is internal not to be damaged by double-tape armor layer；And double-tape armor layer is protected
Internal structure, improves cable intensity so as to not damaged by external force；And halogen-free flameproof flexible sheath layer cable is tentatively insulated,
Every wet and fire-retardant, smog is small caused by burning, easy to fire fighter's rescue and relief work.
Brief description of the drawings
The attached drawing for forming the part of the utility model is used to provide a further understanding of the present invention, this practicality is new
The schematic description and description of type is used to explain the utility model, does not form the improper restriction to the utility model.
In attached drawing：
Fig. 1 is the coal mine flame-retardant cable profile described in the utility model embodiment.
Description of reference numerals：
1st, cored wire；11st, conductor；12nd, refractory insulating layer；2nd, insulation sheath；21st, fire-resistant wrapping tape layer；22nd, fire-retardant inner sheath
Layer；23rd, double-tape armor layer；24th, halogen-free flameproof flexible sheath layer；25th, anti-aging protective layer；3rd, flame retardant filler strip.
Embodiment
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the utility model can
To be mutually combined.
In the description of the utility model, it is to be understood that term " orientation of instruction such as " center ", " interior ", " outer " or
Position relationship is based on orientation shown in the drawings or position relationship, is for only for ease of description the utility model and simplifies description,
Rather than instruction or imply signified device or element must have specific orientation, with specific azimuth configuration and operation, because
This is it is not intended that limitation to the utility model.In the description of the utility model, unless otherwise indicated, the implication of " multiple "
It is two or more.
, it is necessary to illustrate in the description of the utility model, unless otherwise clearly defined and limited, term " connection "
It should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can be that machinery connects
Connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary.For the common of this area
For technical staff, concrete meaning of the above-mentioned term in the utility model can be understood by concrete condition.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of coal mine flame-retardant cable, as shown in Figure 1, being wrapped in including three cored wires 1 and by cored wire 1 outside interior insulation
Skin 2, cored wire 1 include conductor 11 and the refractory insulating layer 12 being wrapped in outside conductor 11；Insulation sheath 2 includes successively from the inside to the outside
The fire-resistant wrapping tape layer 21 that wraps up layer by layer, fire-retardant inner restrictive coating 22, double-tape armor layer 23, halogen-free flameproof flexible sheath layer 24 and anti-
Aging protective layer 25；Flame retardant filler strip 3 is filled between fire-resistant wrapping tape layer 21 and refractory insulating layer 12.
Wherein refractory insulating layer 12 is mica powder layer, and fire-resistant wrapping tape layer 21 is formed by mica tape along helical wound.Powder cloud
Female and mica tape has excellent resistance to elevated temperatures and flame resistance energy.Mica paper tape has good flexibility under normal conditions,
The volatilization of harmful vapors is substantially not present when meeting naked light and burning, so the product is not only effective and very safe for cable.
Wherein flame retardant filler strip 3 is molded by polyvinyl chloride, and halogen-free flameproof flexible sheath layer 24 is by the poly- second of cross-linking radiation
Alkene is molded.Polyvinyl chloride and Radiation Crosslinked Polyethylene are respectively provided with preferable fireproofing and heat resistant, weatherability, stability and insulation
Property, and due to being halogen-free, when burning, produces less smog, and the toxic gas of generation is also few, beneficial to expansion fire fighting and rescue work
Make.
Wherein, fire-retardant inner restrictive coating 22 is alkali-free glass fibre layer.Alkali-free glass fibre layer, has chemical stability, electricity
Insulation performance, intensity, as reinforcing material, strengthen the intensity of cable.
Wherein anti-aging protective layer 25 forms for the coating of cable pitch, and the anti-corrosion as halogen-free flameproof flexible sheath layer 24 applies
Material, prevents from making 24 aging of halogen-free flameproof flexible sheath layer, extends the service life.
Because this product is made of fire resistant flame retardant material, and has higher intensity, even if accident occurs for colliery, still
There is probability to ensure the unimpeded of cable.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on, should be included in the utility model
Protection domain within.
Claims (7)
1. a kind of coal mine flame-retardant cable, including some cored wires (1) and cored wire (1) is wrapped in interior insulation sheath (2),
It is characterized in that：Cored wire (1) includes conductor (11) and is wrapped in the refractory insulating layer (12) of conductor (11) outside；Insulation sheath
(2) fire-resistant wrapping tape layer (21), fire-retardant inner restrictive coating (22), the double-tape armor layer wrapped up layer by layer is included successively from the inside to the outside
(23), halogen-free flameproof flexible sheath layer (24) and anti-aging protective layer (25)；Fire-resistant wrapping tape layer (21) and refractory insulating layer (12)
Between be filled with flame retardant filler strip (3).
2. coal mine flame-retardant cable according to claim 1, it is characterised in that：Refractory insulating layer (12) is mica powder layer.
3. coal mine flame-retardant cable according to claim 1, it is characterised in that：Flame retardant filler strip (3) is noted by polyvinyl chloride
Modeling forms.
4. coal mine flame-retardant cable according to claim 1, it is characterised in that：Fire-resistant wrapping tape layer (21) is by mica tape along spiral shell
Spin line is entwined.
5. coal mine flame-retardant cable according to claim 1, it is characterised in that：Fire-retardant inner restrictive coating (22) is alkali-free glass
Fibrous layer.
6. coal mine flame-retardant cable according to claim 1, it is characterised in that：Halogen-free flameproof flexible sheath layer (24) is by spoke
It is molded according to crosslinked polyethylene.
7. coal mine flame-retardant cable according to claim 1, it is characterised in that：Anti-aging protective layer (25) is cable pitch
Coating forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721272149.0U CN207233424U (en) | 2017-09-29 | 2017-09-29 | Coal mine flame-retardant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721272149.0U CN207233424U (en) | 2017-09-29 | 2017-09-29 | Coal mine flame-retardant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207233424U true CN207233424U (en) | 2018-04-13 |
Family
ID=61849918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721272149.0U Expired - Fee Related CN207233424U (en) | 2017-09-29 | 2017-09-29 | Coal mine flame-retardant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207233424U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109087744A (en) * | 2018-08-31 | 2018-12-25 | 四川力卓汇恒科技服务有限公司 | A kind of fireproof cable |
-
2017
- 2017-09-29 CN CN201721272149.0U patent/CN207233424U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109087744A (en) * | 2018-08-31 | 2018-12-25 | 四川力卓汇恒科技服务有限公司 | A kind of fireproof cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180413 Termination date: 20200929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |