CN111048246A - Mining fireproof insulated cable - Google Patents
Mining fireproof insulated cable Download PDFInfo
- Publication number
- CN111048246A CN111048246A CN201911220361.6A CN201911220361A CN111048246A CN 111048246 A CN111048246 A CN 111048246A CN 201911220361 A CN201911220361 A CN 201911220361A CN 111048246 A CN111048246 A CN 111048246A
- Authority
- CN
- China
- Prior art keywords
- fire
- cable
- fireproof
- retardant
- mining
- 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.)
- Pending
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Classifications
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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
- H01B7/02—Disposition of insulation
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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
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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
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention relates to a mine fireproof insulated cable which comprises a conducting wire, an insulating layer, a shielding layer, a high-temperature-resistant flame-retardant sleeve, a flexible metal protective layer and a wear-resistant outer sleeve, wherein the insulating layer, the shielding layer, the high-temperature-resistant flame-retardant sleeve, the flexible metal protective layer and the wear-resistant outer sleeve are sequentially coated outside the conducting wire from inside to outside, a heat insulation cavity is arranged inside the high-temperature-resistant flame-retardant sleeve, and fireproof strips which expand under high temperature to form a heat insulation. Compared with the prior art, the cable has the advantages that the heat insulation cavity and the fire-proof strip arranged in the heat insulation cavity are utilized, the heat insulation, smoke insulation and fire retardant barrier is formed by the thermal expansion of the fire-proof strip, so that the fire-proof effect is achieved, the problem that the cable is short-circuited or even damaged due to the fact that a conducting wire and an insulating layer in the cable are damaged by heat is solved, the service life of the cable is greatly prolonged, and the application range of the cable is greatly widened.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a mining fireproof insulated cable.
Background
The mining cable generally refers to a wire and cable product for equipment used in the coal mining industry and underground equipment, and comprises a cable for communication, illumination and signal equipment on a coal mining machine and a conveyor, an electric drill cable, a cap lamp wire, a power supply cable for an underground mobile substation and the like. Because the environment under the mine is very severe, gas and coal dust exist, and fire and explosion are very easy to cause. Therefore, the mining cables are all fireproof flame-retardant cables. The isolation layer in the existing mining fireproof insulated cable often adopts the material with lower heating temperature, and can not form isolation, so that the insulation material is damaged by heating, the cable is short-circuited, and even the cable is damaged.
Disclosure of Invention
In order to solve the technical problem, the invention provides a mining fireproof insulated cable.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
the utility model provides a mining fire prevention insulated cable, includes the wire, by interior and outer cladding in proper order at outside insulating layer, shielding layer, the fire-retardant cover of high temperature resistant, flexible metal protective layer, wear-resisting overcoat of wire, the inside of the fire-retardant cover of high temperature resistant is equipped with thermal-insulated chamber, thermal-insulated intracavity equipartition has the fire prevention strip that receives the high temperature inflation formation thermal-insulated back-fire relief barrier in order to play the fire prevention effect.
Furthermore, elastic high-temperature-resistant support frames for separating adjacent fire-proof strips are uniformly distributed in the high-temperature-resistant flame-retardant sleeve.
Further, the fire prevention strip is fixed on the inside wall of high temperature resistant fire-retardant cover.
Furthermore, an outer surface layer is arranged on the fireproof strip and is formed by weaving glass fiber cloth.
Furthermore, the interior of the fire-proof strip is provided with a filler, and the filler is an intumescent flame retardant.
The invention has the beneficial effects that:
compared with the prior art, the cable has the advantages that the heat insulation cavity and the fire-proof strip arranged in the heat insulation cavity are utilized, the heat insulation, smoke insulation and fire retardant barrier is formed by the thermal expansion of the fire-proof strip, so that the fire-proof effect is achieved, the problem that the cable is short-circuited or even damaged due to the fact that a conducting wire and an insulating layer in the cable are damaged by heat is solved, the service life of the cable is greatly prolonged, and the application range of the cable is greatly widened.
Drawings
The invention is further illustrated with reference to the following figures and examples:
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further explained in the following with the accompanying drawings and the embodiments.
As shown in fig. 1, a mining fireproof insulated cable comprises a conductor 1, an insulating layer 2, a shielding layer 3, a high-temperature resistant flame-retardant sleeve 6, a flexible metal protective layer 4 and a wear-resistant outer sleeve 5, wherein the insulating layer 2, the shielding layer 3, the high-temperature resistant flame-retardant sleeve 6, the flexible metal protective layer 4 and the wear-resistant outer sleeve 5 are sequentially coated outside the conductor 1 from inside to; wherein the insulating layer 2 is a polyethylene insulating layer having excellent electrical insulating properties; the shielding layer 3 is formed by weaving tinned copper wires; the flexible metal protective layer 4 is a flexible soft copper alloy strip which is wound on the high-temperature-resistant flame-retardant sleeve 6 in a tight overlapping mode, and the wear-resistant outer sleeve 5 is beneficial to dragging of the cable under a mine.
The inside of high temperature resistant fire-retardant cover 6 is equipped with thermal-insulated chamber 6a, the equipartition has four fire prevention strips 7 and with four elasticity high temperature resistant support frames 8 that adjacent fire prevention strip 7 separates in the thermal-insulated chamber 6a, elasticity high temperature resistant support frame 8 is used for providing certain holding power, struts the thermal-insulated chamber 6a of high temperature resistant fire-retardant cover 6 inside, reserves out sufficient space for fire prevention strip 7. The high-temperature-resistant flame-retardant sleeve 6 and the elastic high-temperature-resistant support frame 8 are manufactured through an integrated injection molding process.
The fire prevention strip 7 is fixed on the inside relative inside wall of high temperature fire-retardant cover 6 through the adhesion of heat-resistant glue, prevents that fire prevention strip 7 from rocking in thermal-insulated chamber 6a, influences cable performance and use. The outer surface layer of the fireproof strip 7 is woven by glass fiber cloth, a filler 9 is arranged in the fireproof strip, and the filler 9 is an intumescent flame retardant. When the temperature in the heat insulation cavity 6a is too high, the expandable flame retardant in the fireproof strip 7 can be heated, foamed and expanded, the heat insulation cavity 6a is filled to form a honeycomb fire retardant barrier with certain thickness and strength, oxygen is prevented from entering a combustion area, heat is absorbed in the expansion carbonization process, and non-combustible gas is released, so that the purposes of fire retardant, heat insulation and smoke insulation are achieved, further the wire 1 and the insulating layer 2 inside the cable are prevented from being damaged, the cable is ensured not to be damaged, and the service life of the cable is prolonged.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a mining fire prevention insulated cable, includes wire (1), by interior and outer cladding in proper order insulating layer (2), shielding layer (3), high temperature resistant fire-retardant cover (6), flexible metal protection layer (4), wear-resisting overcoat (5) outside wire (1), its characterized in that: the inside of high temperature resistant fire-retardant cover (6) is equipped with thermal-insulated chamber (6a), the equipartition has fire prevention strip (7) that receive the high temperature inflation to form thermal-insulated back-fire relief barrier in order to play the fire prevention effect in thermal-insulated chamber (6 a).
2. The mining fireproof insulated cable according to claim 1, characterized in that: elastic high-temperature-resistant support frames (8) for separating adjacent fire-proof strips (7) are uniformly distributed in the high-temperature-resistant flame-retardant sleeve (6).
3. The mining fireproof insulated cable according to claim 1, characterized in that: the fireproof strip (7) is fixed on the inner side wall of the high-temperature resistant and flame retardant sleeve (6).
4. The mining fireproof insulated cable according to claim 1, characterized in that: the fireproof strip (7) is provided with an outer surface layer, and the outer surface layer is formed by weaving glass fiber cloth.
5. The mining fireproof insulated cable according to claim 1, characterized in that: and a filler (9) is arranged in the fireproof strip (7), and the filler (9) is an intumescent flame retardant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911220361.6A CN111048246A (en) | 2019-12-03 | 2019-12-03 | Mining fireproof insulated cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911220361.6A CN111048246A (en) | 2019-12-03 | 2019-12-03 | Mining fireproof insulated cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111048246A true CN111048246A (en) | 2020-04-21 |
Family
ID=70234323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911220361.6A Pending CN111048246A (en) | 2019-12-03 | 2019-12-03 | Mining fireproof insulated cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111048246A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112736798A (en) * | 2020-12-30 | 2021-04-30 | 金太阳电缆有限公司 | Anti-aging flame-retardant safe insulated wire |
| CN113085291A (en) * | 2021-05-06 | 2021-07-09 | 广州缆索新材料科技有限公司 | Bridge cable pole flame-retardant heat-insulation fireproof system |
| CN114094382A (en) * | 2021-11-20 | 2022-02-25 | 台州市中能摩托车有限公司 | Circuit ventilation waterproof high-temperature-resistant structure |
| CN114594556A (en) * | 2022-01-14 | 2022-06-07 | 杭州富通通信技术股份有限公司 | Flame-retardant optical cable |
| CN117569376A (en) * | 2024-01-15 | 2024-02-20 | 广东省公路建设有限公司湾区特大桥养护技术中心 | Flexible heat insulation sleeve for embedded part of steel shell immersed tube tunnel and manufacturing method of flexible heat insulation sleeve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205984354U (en) * | 2016-07-15 | 2017-02-22 | 天津市元九科技有限责任公司 | Under -ground cable |
| CN208256336U (en) * | 2018-04-16 | 2018-12-18 | 江苏昌德嘉电缆有限公司 | A kind of I.S.computer control cable |
| CN209168801U (en) * | 2019-02-13 | 2019-07-26 | 河南沈缆电缆有限责任公司 | A kind of mining fireproof cable |
| CN209266081U (en) * | 2018-12-03 | 2019-08-16 | 江苏恒辉电气有限公司 | A kind of marine worker equipment intrinsic safety type control cable |
-
2019
- 2019-12-03 CN CN201911220361.6A patent/CN111048246A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205984354U (en) * | 2016-07-15 | 2017-02-22 | 天津市元九科技有限责任公司 | Under -ground cable |
| CN208256336U (en) * | 2018-04-16 | 2018-12-18 | 江苏昌德嘉电缆有限公司 | A kind of I.S.computer control cable |
| CN209266081U (en) * | 2018-12-03 | 2019-08-16 | 江苏恒辉电气有限公司 | A kind of marine worker equipment intrinsic safety type control cable |
| CN209168801U (en) * | 2019-02-13 | 2019-07-26 | 河南沈缆电缆有限责任公司 | A kind of mining fireproof cable |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112736798A (en) * | 2020-12-30 | 2021-04-30 | 金太阳电缆有限公司 | Anti-aging flame-retardant safe insulated wire |
| CN113085291A (en) * | 2021-05-06 | 2021-07-09 | 广州缆索新材料科技有限公司 | Bridge cable pole flame-retardant heat-insulation fireproof system |
| CN114094382A (en) * | 2021-11-20 | 2022-02-25 | 台州市中能摩托车有限公司 | Circuit ventilation waterproof high-temperature-resistant structure |
| CN114094382B (en) * | 2021-11-20 | 2024-03-15 | 台州市中能摩托车有限公司 | Waterproof high temperature resistant structure of circuit ventilation |
| CN114594556A (en) * | 2022-01-14 | 2022-06-07 | 杭州富通通信技术股份有限公司 | Flame-retardant optical cable |
| CN117569376A (en) * | 2024-01-15 | 2024-02-20 | 广东省公路建设有限公司湾区特大桥养护技术中心 | Flexible heat insulation sleeve for embedded part of steel shell immersed tube tunnel and manufacturing method of flexible heat insulation sleeve |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200421 |