CN111210934B - Tensile type fireproof flame-retardant cable - Google Patents
Tensile type fireproof flame-retardant cable Download PDFInfo
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- CN111210934B CN111210934B CN202010072942.6A CN202010072942A CN111210934B CN 111210934 B CN111210934 B CN 111210934B CN 202010072942 A CN202010072942 A CN 202010072942A CN 111210934 B CN111210934 B CN 111210934B
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- fireproof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/184—Sheaths comprising grooves, ribs or other projections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/24—Devices affording localised protection against mechanical force or pressure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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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
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The invention relates to the field of cables, and discloses a tensile fireproof flame-retardant cable which comprises a wire core (1), a protective sleeve (2) sleeved outside the wire core (1), a reinforcing layer (4), a fireproof layer (5) and a waterproof layer (6) wrapped outside the wire core (1), and an installation framework (3) arranged in the protective sleeve (2), wherein the installation framework (3) comprises a central rod (31) and a rubber soft sleeve (32), and the wire core (1) is installed outside the rubber soft sleeve (32). According to the invention, the aramid fiber filaments are adopted to increase the flexibility of the cable, so that the cable is not easy to crack, the use safety is ensured, the fireproof performance of the cable is improved through two fireproof layers, and the inorganic silicate fireproof coating can effectively isolate the heat conduction effect between a heat source and each cable layer, improve the good fireproof and flame-retardant effects, realize the fireproof function of the cable and prolong the service life of the cable.
Description
Technical Field
The invention relates to the field of cables, in particular to a tensile fireproof flame-retardant cable.
Background
When the electric wire and cable quantity increases fast, some service problems have also appeared, for example the scene such as naval vessel, oil production platform, petrochemical industry enterprise, large-scale power station has proposed higher requirement to the pliability and the fire prevention fire resistance of cable, and current cable can not effectual fire prevention fire-retardant in the application, and it is pulled apart easily under adverse circumstances, leads to inside electric wire to expose, is unfavorable for the safety and stability work of cable.
With the rise of urban construction, cables are more and more widely used, the cables which need to be used at present need to have a series of excellent performances such as high strength, tensile strength, wear resistance, torsion resistance, bending resistance, oil resistance, ultraviolet resistance, acid and alkali resistance, corrosion resistance, water resistance, difficult core wire breakage, no sheath cracking and the like, the cables which can meet the performances are high in price in the market at present and difficult to meet all requirements, and the production of the cables meeting the requirements by common materials is a key point provided by the requirements at this time.
At present, a tensile type cable, the utility model patent of patent No. 201420493629.X separates each cable core conductor and places, avoids the electromagnetic mutual interference between each cable core conductor, has guaranteed the transmission reliability, can increase the tensile ability of this device through the tensile copper wire simultaneously, avoids the cable to be broken at the in-process of laying, and it is troublesome to reduce unnecessary, and the structure of this device is comparatively simple, and it is comparatively convenient to make, is fit for using widely. The problems of insufficient tensile strength and electromagnetic mutual interference are solved, but the defect of insufficient tensile strength is also existed.
Disclosure of Invention
Aiming at the defect of insufficient tensile capability in the prior art, the invention provides the tensile type fireproof flame-retardant cable.
In order to solve the technical problem, the invention is solved by the following technical scheme:
tensile type fire prevention flame retarded cable, including the sinle silk, still establish the protective sheath outside the sinle silk including the cover, the outer parcel of sinle silk has the back up coat, flame retardant coating and waterproof layer, still including setting up the installation skeleton in the protective sheath, the installation skeleton includes well core rod and cover and establishes the rubber flexible sleeve outside well core rod, install a plurality of swivel becket on well core rod, pass through spring coupling between swivel becket and the rubber flexible sleeve, the sinle silk is installed outside the rubber flexible sleeve, the rubber flexible sleeve outwards struts and compresses tightly the sinle silk on the inner wall of protective sheath through the effort of spring.
Preferably, the central rod is a rubber rod, a plurality of annular grooves are formed in the outer surface of the central rod, and a convex ring matched with the annular grooves is arranged on the inner wall of the rotating ring.
Preferably, the thickness of the rubber soft sleeve is 0.2-0.4 mm, the outer surface of the rubber soft sleeve is provided with a plurality of spirally arranged arc-shaped grooves, and the arc-shaped grooves are matched with the outer surface of the wire core.
Preferably, the springs comprise a plurality of supporting springs and matching springs, the inner ends of the matching springs are fixedly arranged on the rotating ring, the outer ends of the matching springs are provided with arc-shaped plates which are sunken towards the inner ends of the matching springs, the arc-shaped plates are attached to the rubber soft sleeves, the rubber soft sleeves form arc-shaped surfaces matched with the wire cores, and the supporting springs are arranged between every two adjacent matching springs.
Preferably, the fireproof layer has two layers, the fireproof layer comprises a first fireproof layer and a second fireproof layer, the waterproof layer is located between the first fireproof layer and the second fireproof layer, the first fireproof layer, the waterproof layer and the second fireproof layer are sequentially sleeved on the wire core from inside to outside, the inner wall of the first fireproof layer is provided with an inorganic silicate fireproof coating layer, and the inner wall of the second fireproof layer is provided with a fireproof composite material layer.
Preferably, the fire-resistant composite layer comprises polycarbonate, sulfonate fire retardant, talc, glass fiber, heat-conducting filler, polytetrafluoroethylene, and volcanic ash.
Preferably, still include the back up coat, the back up coat parcel is outside the second fire prevention layer, and the back up coat includes first back up coat and second back up coat, is equipped with the hole on the first back up coat, is equipped with on the second back up coat with hole complex arch.
Due to the adoption of the technical scheme, the invention has the remarkable technical effects that: this scheme adopts aramid fiber silk to increase the pliability of cable, make the cable be difficult to be pulled and split, guarantee the security of using, the fire behavior of this cable has been improved through two-layer flame retardant coating, and inorganic silicate fire protection coating, can effectively completely cut off the heat conduction effect between heat source and each cable layer, improve good fire prevention and flame retardant efficiency, realize the fire prevention function of cable, the life of extension cable, it has heat conduction filler to fill in the fire prevention combined material, the fire behavior of cable has further been improved.
In addition, through the effect of installation skeleton, play the effect of supporting the location to the line core, when can guaranteeing the outside and drag, inside cable still can normally work.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a partial method diagram of fig. 1.
Fig. 3 is a schematic view of the structure of the center rod and the rotating ring of fig. 1.
The names of the parts indicated by the numerical references in the drawings are as follows: 1-sinle silk, 2-protective sheath, 3-installation skeleton, 4-back up coat, 5-flame retardant coating, 6-waterproof layer, 31-central pole, 32-rubber soft cover, 33-rotating ring, 34-spring, 311-annular groove, 321-arc recess, 331-bulge loop, 341-supporting spring, 342-cooperation spring, 3421-arc board, 41-first back up coat, 42-second back up coat, 51-first flame retardant coating, 52-second flame retardant coating.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
Tensile type fire prevention flame retarded cable, as shown in the figure, including sinle silk 1, still establish protective sheath 2 outside sinle silk 1 including the cover, the outer parcel of sinle silk 1 has back up coat 4, flame retardant coating 5 and waterproof layer 6, still including setting up the installation skeleton 3 in protective sheath 2, installation skeleton 3 includes that well core rod 31 and cover establish the rubber soft cover 32 outside well core rod 31, install a plurality of swivel rings 33 on the well core rod 31, connect through spring 34 between swivel ring 33 and the rubber soft cover 32, sinle silk 1 is installed outside rubber soft cover 32, rubber soft cover 32 outwards struts and compresses tightly sinle silk 1 on the inner wall of protective sheath 2 through spring 34's effort.
The central rod 31 is a rubber rod, the central rod 31 can be bent along with the wire core, the outer surface of the central rod 31 is provided with a plurality of annular grooves 311, and the inner wall of the rotating ring 33 is provided with a convex ring 331 matched with the annular grooves 311.
The thickness of the rubber soft sleeve 32 is 0.25mm, the outer surface of the rubber soft sleeve 32 is provided with a plurality of spirally arranged arc-shaped grooves 321, and the arc-shaped grooves 321 are matched with the outer surface of the wire core 1.
The spiral design of arc recess 321 can effectively make sinle silk 1 at the inside spiral distribution of protective sheath 1 for protective sheath 2 is when receiving external force to pull, and inside sinle silk 1 has certain extension range, prevents that sinle silk 1 from being directly pulled and the phenomenon of breaking off.
The arc-shaped groove 321 can be used for simultaneously placing a plurality of wire cores 1, and the wire cores are arranged according to a spiral track and are not easy to contact and knot.
The springs 34 are multiple, each spring 34 comprises a supporting spring 341 and a matching spring 342, the inner end of each matching spring 342 is fixedly arranged on the rotating ring 33, the outer end of each matching spring 342 is provided with an arc-shaped plate 3421 which is concave towards the inner end of each matching spring 342, each arc-shaped plate 3421 is attached to the rubber soft sleeve 32 to enable the rubber soft sleeve 32 to form an arc-shaped surface matched with the wire core 1, and each supporting spring 341 is arranged between every two adjacent matching springs 342.
When using, pass sinle silk 1 in protective sheath 2 earlier, protective sheath 2 is a hollow and both ends open-ended cylinder, the axis of well core rod 31 coincides with protective sheath 2's axis, swivel becket 33 on the well core rod 31 can rotate around well core rod 31, rubber soft cover 32 passes through spring 34 and is connected with swivel becket 33, when sinle silk 1 is installed in protective sheath 2, rubber soft cover 32 and sinle silk 1 contact compress tightly inside protective sheath 2, prevent that many sinle silks 1 from entangling in protective sheath 2 and knoing together, the effect of erection skeleton 3 can help fixing a position sinle silk 1 in protective sheath 2.
The rubber soft sleeve 32 has a small thickness and a certain elasticity, so that the arc-shaped plate 3421 at the outer end of the matching spring 342 can press on the rubber soft sleeve 32 and make the rubber soft sleeve 32 form a radian matched with the wire cores 1, thereby effectively preventing the position of the wire cores 1 from deviating, and the supporting spring 341 can push the rubber soft sleeve 32 to extend out and make the extending part be located between two wire cores 1, thereby preventing the wire cores 1 from directly contacting. The number of the rotating rings 33 is multiple, each rotating ring 33 is provided with at least two supporting springs 341 and at least two matching springs 342, and the number of the supporting springs 341 and the number of the matching springs 342 on the same rotating ring 33 are the same.
Example 2
The same as in example 1 except that the rubber boot 32 was 0.37mm thick.
Example 3
The same as in example 1 except that the rubber boot 32 was 0.3mm thick.
Example 4
The fireproof layer 5 is the same as the fireproof layer 5 in embodiment 1, and the fireproof layer 5 comprises a first fireproof layer 51 and a second fireproof layer 52, the waterproof layer 6 is located between the first fireproof layer 51 and the second fireproof layer 52, the first fireproof layer 51, the waterproof layer 6 and the second fireproof layer 52 are sequentially sleeved on the wire core 1 from inside to outside, the inner wall of the first fireproof layer 51 is provided with an inorganic silicate fireproof coating layer, and the inner wall of the second fireproof layer 52 is provided with a fireproof composite material layer.
The fireproof composite material layer comprises polycarbonate, sulfonate flame retardant, talc, glass fiber, heat-conducting filler, polytetrafluoroethylene and volcanic ash.
Example 5
The same as embodiment 1, except that the reinforcing layer 4 is included, the reinforcing layer 4 is wrapped outside the second fireproof layer 52, the reinforcing layer 4 includes a first reinforcing layer 41 and a second reinforcing layer 42, a hole is formed in the first reinforcing layer 41, and a protrusion matched with the hole is formed in the second reinforcing layer 42.
The first reinforcing layer 41 and the second reinforcing layer 42 are fitted by the cooperation of the holes and the protrusions.
In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.
Claims (5)
1. Tensile type fire prevention flame retarded cable, including sinle silk (1), still establish protective sheath (2) outside sinle silk (1), its characterized in that including the cover: the outside of the wire core (1) is wrapped with a reinforcing layer (4), the fireproof layer (5) and the waterproof layer (6) further comprise an installation framework (3) arranged in the protective sleeve (2), the installation framework (3) comprises a central rod (31) and a rubber soft sleeve (32) sleeved outside the central rod (31), a plurality of rotating rings (33) are installed on the central rod (31), the rotating rings (33) are connected with the rubber soft sleeve (32) through springs (34), the wire cores (1) are installed outside the rubber soft sleeve (32), the thickness of the rubber soft sleeve (32) is 0.2-0.4 mm, arc-shaped grooves (321) which are spirally arranged are formed in the outer surface of the rubber soft sleeve (32), the arc-shaped grooves (321) are multiple in number, the arc-shaped grooves (321) are matched with the outer surface of the wire cores (1), and the rubber soft sleeve (32) is outwards stretched through the acting force of the springs (34) and tightly presses the wire cores (1) on the inner wall of the protective sleeve (2); the central rod (31) is a rubber rod, a plurality of annular grooves (311) are formed in the outer surface of the central rod (31), and a convex ring (331) matched with the annular grooves (311) is arranged on the inner wall of the rotating ring (33).
2. The tensile-type fireproof flame-retardant cable according to claim 1, wherein: the springs (34) are multiple, each spring (34) comprises a supporting spring (341) and a matching spring (342), the inner end of each matching spring (342) is fixedly arranged on the rotating ring (33), an arc-shaped plate (3421) which is sunken towards the inner end of each matching spring (342) is arranged at the outer end of each matching spring (342), the arc-shaped plates (3421) are attached to the rubber soft sleeves (32) to enable the rubber soft sleeves (32) to form arc-shaped surfaces matched with the wire cores (1), and the supporting springs (341) are arranged between every two adjacent matching springs (342).
3. The tensile-type fireproof flame-retardant cable according to claim 1, wherein: the fireproof layer (5) is two-layer, the fireproof layer (5) comprises a first fireproof layer (51) and a second fireproof layer (52), the waterproof layer (6) is located between the first fireproof layer (51) and the second fireproof layer (52), the first fireproof layer (51), the waterproof layer (6) and the second fireproof layer (52) are sequentially sleeved on the wire core (1) from inside to outside, an inorganic silicate fireproof coating layer is arranged on the inner wall of the first fireproof layer (51), and a fireproof composite material layer is arranged on the inner wall of the second fireproof layer (52).
4. The tensile-type fireproof flame-retardant cable according to claim 3, wherein: the fireproof composite material layer comprises polycarbonate, sulfonate flame retardant, talc, glass fiber, heat-conducting filler, polytetrafluoroethylene and volcanic ash.
5. The tensile-type fireproof flame-retardant cable according to claim 3, wherein: still include back up coat (4), back up coat (4) parcel is outside second flame retardant coating (52), and back up coat (4) include first back up coat (41) and second back up coat (42), are equipped with hole (411) on first back up coat (41), are equipped with on second back up coat (42) with hole (411) complex protruding (421).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010072942.6A CN111210934B (en) | 2020-01-22 | 2020-01-22 | Tensile type fireproof flame-retardant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010072942.6A CN111210934B (en) | 2020-01-22 | 2020-01-22 | Tensile type fireproof flame-retardant cable |
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| Publication Number | Publication Date |
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| CN111210934A CN111210934A (en) | 2020-05-29 |
| CN111210934B true CN111210934B (en) | 2021-06-25 |
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| CN202010072942.6A Active CN111210934B (en) | 2020-01-22 | 2020-01-22 | Tensile type fireproof flame-retardant cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111933332A (en) * | 2020-07-07 | 2020-11-13 | 中筑科技股份有限公司 | Interference-preventing high-strength cable for central air conditioner |
| CN113035418B (en) * | 2021-03-10 | 2023-03-24 | 上海祥龙电缆制造有限公司 | High antitorque industry flexible cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH01321605A (en) * | 1988-06-23 | 1989-12-27 | Furukawa Electric Co Ltd:The | Manufacture of oxide ceramic superconductor coil |
| CN109036668A (en) * | 2018-08-04 | 2018-12-18 | 安徽华能电缆集团有限公司 | A kind of tension power cable |
| CN109148018A (en) * | 2018-08-30 | 2019-01-04 | 安徽南洋新材料科技股份有限公司 | A kind of tensile type aluminium alloy power cable |
| CN109360685A (en) * | 2018-11-29 | 2019-02-19 | 广州番禺电缆集团有限公司 | A kind of tensile type fire-proof and water-proof flame retardant cable |
| CN211828180U (en) * | 2020-01-22 | 2020-10-30 | 浙江元通线缆制造有限公司 | Tensile type fireproof flame-retardant cable |
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