CN203480909U - Movable self-supporting high-flame retardant metal sheathed monitor-type flexible cable for coal mine - Google Patents
Movable self-supporting high-flame retardant metal sheathed monitor-type flexible cable for coal mine Download PDFInfo
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- CN203480909U CN203480909U CN201320585290.1U CN201320585290U CN203480909U CN 203480909 U CN203480909 U CN 203480909U CN 201320585290 U CN201320585290 U CN 201320585290U CN 203480909 U CN203480909 U CN 203480909U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The utility model relates to a movable self-supporting high-flame retardant metal sheathed monitor-type flexible cable for coal mine. The flexible cable provided by the utility model comprises at least a wire core. The structure of the single wire core comprises power wire core conductors. Each power wire core conductor is successively coated with a conductor shielding layer, an insulating layer and a composite shielding layer. A plurality of wire cores are stranded to form a cable core, in the middle of which a combined bearing core is placed. The cable core is also provided with a filling material which is successively coated with a first oxygen-barrier layer, an inner sheath, a composite frame-retardant layer, a second oxygen-barrier layer and an outer sheath. Monitoring cores are arranged at intervals between the first oxygen-barrier layer and the inner sheath. The flexible cable provided by the utility model has advantages of excellent high flame resistance and nondestructive signal transmission, and has cable self-supporting performance. According to the flexible cable, laying space for connection is minimized, and application range is expanded.
Description
Technical field
The utility model relates to cable technology field, especially a kind of coal mine moving self-supporting formula high flame retardant metal shielded flexible cable for monitoring.
Background technology
Colliery shielding monitoring-type flexible cable is as one of important electric auxiliary products under coal mine, its environment for use is harsh, security requirement is strict, is that performance level requires the electric wire kind high, manufacturing technology difficulty is larger, if long-term work temperature requirement is 90 ℃; Single vertical after flame time <60s and load burning after flame time <240 S; The requirements such as sheath oxygen index >38.Owing in use existing and hanging the non-destructive requirement of laying with communication data signal, thereby coal mine moving metallic shield monitors that flexible cable not only will meet self fire-retardant, fire protection requirement, also will possess self-supporting principal characteristic.Shielding monitoring-type flexible cable in colliery of the prior art cannot meet above-mentioned requirements, and its dependability is poor, and the life-span is short.
Utility model content
The applicant is for the shortcoming in above-mentioned existing production technology, a kind of coal mine moving self-supporting formula high flame retardant metal shielded flexible cable for monitoring rational in infrastructure is provided, thereby make it have good high flame retardant and the transmission of non-destructive signal, possess cable self-supporting performance, reduce laying space requirement and expanding the scope of application of connecting.
The technical scheme that the utility model adopts is as follows:
A kind of coal mine moving self-supporting formula high flame retardant metal shielded flexible cable for monitoring, comprise at least one core, the structure of single core is: comprise power line core conductor, the periphery of described power line core conductor is enclosed with conductor shield, insulating barrier, composite shielding layer successively; The many stranded formation cable cores of core, be positioned at cable core middle part and be placed with combination load-bearing core, on described cable core, be also provided with inserts, the peripheral order of described inserts is enclosed with the first oxygen barrier layer, inner sheath, composite flame-proof layer, the second oxygen barrier layer and oversheath, is arranged at intervals with supervision core between the first oxygen barrier layer and inner sheath.
Further improvement as technique scheme:
Described power line core conductor adopts the bunch of tin-coated copper monofilament formation according to the regular stranded formation of left-hand;
The regular stranded formation of the two-layer employing tinned copper wire of described power line core conductor outermost left-hand, the bunch that all the other each layer of employing tinned copper wires form is according to the regular stranded formation of left-hand;
The formation of described supervision core is respectively interior vitreous fibre conductor, PVC sleeve pipe, the semi-conductive layer of outwards comprising successively; With the stranded formation of cable core concentric type;
Described combination load-bearing core passes through three steel wires through stranded formation;
The internal layer of described composite shielding layer is wrapped by semi-conductive layer, and the skin of composite shielding layer is wrapped by proof copper-wire braided;
Described inserts is low-smoke non-halogen flame-retardant polyethylene;
Described inner sheath adopts heat-resistant silicon rubber;
The internal layer of described composite flame-proof layer is the wrapped formation of glass fibre belt, and the skin of composite flame-proof layer is the wrapped formation of magnesium hydroxide fabric strip;
Described oversheath is that high flame retardant material forms.
The beneficial effects of the utility model are as follows:
(1) the utility model is rational in infrastructure, easy to make, and cost is low, and dependability is good.
(2) supervision core described in the utility model adopts glass material fiber to do conductor, and glass material fiber conductor has transmitting optical signal and the little feature of loss, is convenient to ground monitoring, can directly transmit real-time pictures.
(3) it is stranded that combination load-bearing core described in the utility model adopts three steel wire left-hands, makes cable bear own wt and meet suspension type and lay and expand the scope of application.
(4) composite shielding layer described in the utility model is that the wrapped and proof copper-wire braided of semi-conductive tape forms, and shielding properties is good, and electric energy loss is low.
(5) insulating barrier described in the utility model is heat-resistant silicon rubber, and the company's of employing sulphuring treatment after insulating barrier extrudes moulding.Heat-resistant silicon rubber has excellent electrical insulation capability, heat resistance and fire resistance, can be that the normal working temperature of cable core conductor rises to 190 ℃.
(6) inserts described in the utility model is low-smoke non-halogen flame-retardant polyethylene, this material low smoke and zero halogen, and fire resistance is excellent, has good oil resistance and flexibility.
(7) oxygen barrier layer described in the utility model is cross-linking low smoke halogen-free flame retardant polyethylene, this material low smoke and zero halogen, and excellent in flame retardance, oil resistance and flexibility are good.
(8) composite flame-proof layer described in the utility model is that glass fibre belt and magnesium hydroxide fabric strip are compound, and glass fibre belt pulling force extra-heavy is easy to wrappedly, and magnesium hydroxide fabric strip has excellent fire resistance, greatly improves flexibility and the anti-flammability of cable after the two is compound.
(9) oversheath described in the utility model is high flame retardant rubber; the oxygen index of high flame retardant rubber is 46; impart tear reaches 12N/mm; 5.0N/mm much larger than standard; under loading condition, after flame time is 1～2 second; 0.2 meter of bunchy burning carbonate length; insulation resistance 550M Ω .km(20 ℃); both there is the performances such as extraordinary fireproof, fire-retardant, low cigarette, Halogen, short after flame time, insulation property; in down-hole breaking out of fire situation, guarantee that circuit is unimpeded; can play effective protective effect, control to personnel escape or system and gain time.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein: 1, power line core conductor; 2, conductor shield; 3, insulating barrier; 4, composite shielding layer; 5, inserts; 6, monitor core; 7, inner sheath; 8, composite flame-proof layer; 9, the first oxygen barrier layer; 10, oversheath; 11, combination load-bearing core; 12, the second oxygen barrier layer.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
As shown in Figure 1, the coal mine moving self-supporting formula high flame retardant metal shielded flexible cable for monitoring of the present embodiment, comprise at least one core, the structure of single core is: comprise power line core conductor 1, the periphery of power line core conductor 1 is enclosed with conductor shield 2, insulating barrier 3, composite shielding layer 4 successively; The many stranded formation cable cores of core, be positioned at cable core middle part and be placed with combination load-bearing core 11, on cable core, be also provided with inserts 5, the peripheral order of inserts 5 is enclosed with the first oxygen barrier layer 9, inner sheath 7, composite flame-proof layer 8, the second oxygen barrier layer 12 and oversheath 10, is arranged at intervals with three and monitors core 6 between the first oxygen barrier layer 9 and inner sheath 7.
Power line core conductor 1 adopts the bunch of tin-coated copper monofilament formation according to the regular stranded formation of left-hand.
The regular stranded formation of power line core conductor 1 outermost two-layer employing tinned copper wire left-hand, the bunch that all the other each layer of employing tinned copper wires form is according to the regular stranded formation of left-hand.
Left-hand is regular when stranded, and each layer of stranded lay ratio adds 3 rule according to 10 by skin to internal layer respectively successively.
The formation that monitors core 6 is respectively interior vitreous fibre conductor, PVC sleeve pipe, the semi-conductive layer of outwards comprising successively; With the stranded formation of cable core concentric type.
Combination load-bearing core 11 passes through three steel wires through stranded formation.Lay ratio is 40 rule, and wrapped semi-conductive tape; Be placed in cable core central authorities, be twisted into it cable core;
The internal layer of composite shielding layer 4 is wrapped by semi-conductive layer, and the skin of composite shielding layer 4 is wrapped by proof copper-wire braided.It adopts the bunch of tin-coated copper monofilament formation according to the regular stranded formation of left-hand, and wrapped semi-conductive tape; With the stranded formation of cable core concentric type;
The internal layer of composite flame-proof layer 8 is the wrapped formation of glass fibre belt, and the skin of composite flame-proof layer 8 is the wrapped formation of magnesium hydroxide fabric strip.
Oversheath 10 is high flame retardant material formation.By high flame retardant rubber, extrude moulding, then through vulcanizing treatment.
The first oxygen barrier layer 9 and the second oxygen barrier layer 12 are cross-linking low-smoke halogen-free polyethylene material,
Above-mentioned each structure sheaf all adopts common process to make, and comprises described silicon rubber and sulfuration process and the poly crosslinking process of high flame retardant rubber.Above-mentioned each material all adopts marketable material.
Power line core conductor 1 adopts the bunch of tin-coated copper monofilament formation according to the regular stranded formation of left-hand; The bundle strand equipment of bunch and the multiple strand equipment of cable are conventional equipment.
Monitor that core 6 adopts conventional fiber optic cables production technology, and on PVC sleeve pipe wrapped semi-conductive tape.
More than describing is to explanation of the present utility model, is not the restriction to utility model, and the utility model limited range, referring to claim, within protection range of the present utility model, can be done any type of modification.
Claims (10)
1. a coal mine moving self-supporting formula high flame retardant metal shielded flexible cable for monitoring, it is characterized in that: comprise at least one core, the structure of single core is: comprise power line core conductor (1), the periphery of described power line core conductor (1) is enclosed with conductor shield (2), insulating barrier (3), composite shielding layer (4) successively; The many stranded formation cable cores of core, be positioned at cable core middle part and be placed with combination load-bearing core (11), on described cable core, be also provided with inserts (5), the peripheral order of described inserts (5) is enclosed with the first oxygen barrier layer (9), inner sheath (7), composite flame-proof layer (8), the second oxygen barrier layer (12) and oversheath (10), is positioned between the first oxygen barrier layer (9) and inner sheath (7) and is arranged at intervals with and monitors core (6).
2. coal mine moving self-supporting formula high flame retardant metal shielded flexible cable for monitoring as claimed in claim 1, is characterized in that: described power line core conductor (1) adopts the bunch of tin-coated copper monofilament formation according to the regular stranded formation of left-hand.
3. coal mine moving self-supporting formula high flame retardant metal shielded flexible cable for monitoring as claimed in claim 1, it is characterized in that: the regular stranded formation of the two-layer employing tinned copper wire of described power line core conductor (1) outermost left-hand, the bunch that all the other each layer of employing tinned copper wires form is according to the regular stranded formation of left-hand.
4. coal mine moving self-supporting formula high flame retardant metal shielded flexible cable for monitoring as claimed in claim 1, is characterized in that: the formation of described supervision core (6) is respectively interior vitreous fibre conductor, PVC sleeve pipe, the semi-conductive layer of outwards comprising successively; With the stranded formation of cable core concentric type.
5. coal mine moving self-supporting formula high flame retardant metal shielded flexible cable for monitoring as claimed in claim 1, is characterized in that: described combination load-bearing core (11) passes through three steel wires through stranded formation.
6. coal mine moving self-supporting formula high flame retardant metal shielded flexible cable for monitoring as claimed in claim 1, is characterized in that: the internal layer of described composite shielding layer (4) is wrapped by semi-conductive layer, and the skin of composite shielding layer (4) is wrapped by proof copper-wire braided.
7. coal mine moving self-supporting formula high flame retardant metal shielded flexible cable for monitoring as claimed in claim 1, is characterized in that: described inserts (5) is low-smoke non-halogen flame-retardant polyethylene.
8. coal mine moving self-supporting formula high flame retardant metal shielded flexible cable for monitoring as claimed in claim 1, is characterized in that: described inner sheath (7) adopts heat-resistant silicon rubber.
9. coal mine moving self-supporting formula high flame retardant metal shielded flexible cable for monitoring as claimed in claim 1, it is characterized in that: the internal layer of described composite flame-proof layer (8) is the wrapped formation of glass fibre belt, the skin of composite flame-proof layer (8) is the wrapped formation of magnesium hydroxide fabric strip.
10. coal mine moving self-supporting formula high flame retardant metal shielded flexible cable for monitoring as claimed in claim 1, is characterized in that: described oversheath (10) is high flame retardant material formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320585290.1U CN203480909U (en) | 2013-09-23 | 2013-09-23 | Movable self-supporting high-flame retardant metal sheathed monitor-type flexible cable for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320585290.1U CN203480909U (en) | 2013-09-23 | 2013-09-23 | Movable self-supporting high-flame retardant metal sheathed monitor-type flexible cable for coal mine |
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| Publication Number | Publication Date |
|---|---|
| CN203480909U true CN203480909U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320585290.1U Expired - Fee Related CN203480909U (en) | 2013-09-23 | 2013-09-23 | Movable self-supporting high-flame retardant metal sheathed monitor-type flexible cable for coal mine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474159A (en) * | 2013-09-23 | 2013-12-25 | 铜陵中冠电缆有限公司 | Movable self-bearing high-flame retardance metallic shield monitoring flexible cable for coal mine |
-
2013
- 2013-09-23 CN CN201320585290.1U patent/CN203480909U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474159A (en) * | 2013-09-23 | 2013-12-25 | 铜陵中冠电缆有限公司 | Movable self-bearing high-flame retardance metallic shield monitoring flexible cable for coal mine |
| CN103474159B (en) * | 2013-09-23 | 2016-09-14 | 中冠新材料科技有限公司 | Movable self-bearing high-flame retardance metallic shield monitoring flexible cable for coal mine |
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| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 244000 Anhui Province, Tongling City Development Zone Lake Road No. 1151 Patentee after: The crown of the new Mstar Technology Ltd Address before: 244000 Anhui Province, Tongling City Development Zone Lake Road No. 1151 Patentee before: Tongling Zhongguan Cable Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20180923 |
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| CF01 | Termination of patent right due to non-payment of annual fee |