CN219800531U - Fire-resistant high-temperature-resistant high-frequency coaxial cable - Google Patents
Fire-resistant high-temperature-resistant high-frequency coaxial cable Download PDFInfo
- Publication number
- CN219800531U CN219800531U CN202321186317.XU CN202321186317U CN219800531U CN 219800531 U CN219800531 U CN 219800531U CN 202321186317 U CN202321186317 U CN 202321186317U CN 219800531 U CN219800531 U CN 219800531U
- Authority
- CN
- China
- Prior art keywords
- layer
- resistant
- fire
- heat
- resistant layer
- 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.)
- Active
Links
- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 32
- 239000002131 composite material Substances 0.000 claims abstract description 35
- 239000004020 conductor Substances 0.000 claims abstract description 19
- 239000010410 layer Substances 0.000 claims description 112
- 229910052751 metal Inorganic materials 0.000 claims description 36
- 239000002184 metal Substances 0.000 claims description 36
- 239000011248 coating agent Substances 0.000 claims description 21
- 238000000576 coating method Methods 0.000 claims description 21
- 239000004065 semiconductor Substances 0.000 claims description 10
- 239000011241 protective layer Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000835 fiber Substances 0.000 abstract description 5
- 239000006260 foam Substances 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 238000005187 foaming Methods 0.000 abstract description 3
- 239000004698 Polyethylene Substances 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- -1 polyethylene Polymers 0.000 abstract description 2
- 229920000573 polyethylene Polymers 0.000 abstract description 2
- 230000004224 protection Effects 0.000 description 4
- 239000004809 Teflon Substances 0.000 description 3
- 229920006362 Teflon® Polymers 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009954 braiding Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006261 foam material Substances 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model provides a fire-resistant high-temperature-resistant high-frequency coaxial cable, which comprises a conductor assembly, wherein a composite shielding layer is arranged outside the conductor assembly, a composite fire-resistant layer is arranged outside the composite shielding layer, and the composite fire-resistant layer comprises a heat-resistant layer, a filling groove and a fire-resistant layer; filling grooves are uniformly formed in the inner side wall of the heat-resistant layer, and a fire-resistant layer is extruded on the outer side wall of the heat-resistant layer. Compared with the traditional polyethylene foaming material, the high temperature resistance of the heat-resistant layer is greatly improved, and the fine foam process can enable the heat-resistant layer to foam more densely and uniformly, the heat-resistant temperature of the heat-resistant layer is up to 250 ℃, the inner side wall of the heat-resistant layer is provided with the filling grooves, so that the inner side of the heat-resistant layer is in a zigzag design, the air filling is increased, the heat insulation effect is improved, the fireproof layer is woven by fireproof fibers, the fireproof temperature is up to more than 1000 ℃, the combustion of a high-frequency coaxial cable is avoided, and a fire source is effectively isolated.
Description
Technical Field
The utility model relates to a coaxial cable, in particular to a fireproof high-temperature-resistant high-frequency coaxial cable, and belongs to the technical field of coaxial cables.
Background
A cable is an electrical energy or signal transmission device, typically consisting of several wires or groups of wires. Coaxial cables are used for transmission of analog and digital signals, and are suitable for a wide variety of applications, the most important of which are cable television transmissions, long distance telephone transmissions, short distance connections between computer systems, and local area networks. Coaxial cable has evolved rapidly as a means of propagating television signals to thousands of households, namely cable television. A cable television system may carry tens or even hundreds of television channels, which may range up to tens of kilometers. Coaxial cables have long been an important component of long distance telephone networks.
In some special environments, such as steelmaking, boilers and other areas, due to extremely high ambient temperature, some even open fire occurs, and coaxial cables on the market cannot work in the environment for a long time, and some areas are routed by the way to prevent the environment from damaging the coaxial cables, so that the area is free from communication signals, and the operators in the area are inconvenient greatly.
Disclosure of Invention
In view of the foregoing, the present utility model provides a fire resistant high temperature and high frequency coaxial cable to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial choice.
The technical scheme of the embodiment of the utility model is realized as follows: the fireproof high-temperature-resistant high-frequency coaxial cable comprises a conductor assembly, wherein a composite shielding layer is arranged outside the conductor assembly, a composite fireproof layer is arranged outside the composite shielding layer, and the composite fireproof layer comprises a heat-resistant layer, a filling groove and a fireproof layer;
filling grooves are uniformly formed in the inner side wall of the heat-resistant layer, a fire-resistant layer is extruded on the outer side wall of the heat-resistant layer, and fireproof fibers are adopted for weaving the fire-resistant layer.
Further preferred is: the conductor assembly includes a conductor and an insulating layer;
and an insulating layer is extruded on the outer side wall of the conductor.
Further preferred is: the composite shielding layer comprises a first metal shielding layer, a second metal shielding layer and a semiconductor shielding layer;
the first metal shielding layer is wrapped on the outer side wall of the insulating layer.
Further preferred is: the outer side wall of the first metal shielding layer is wrapped with a second metal shielding layer, the first metal shielding layer is formed by weaving tinned copper wires, and the second metal shielding layer is an aluminum foil layer.
Further preferred is: and the outer side wall of the second metal shielding layer is wrapped with a semiconductor shielding layer.
Further preferred is: the heat-resistant layer is extruded on the outer side wall of the semiconductor shielding layer, and is made of teflon foam materials by adopting a fine cell process.
Further preferred is: the composite fire-resistant layer is provided with a composite protective layer outside, and the composite protective layer comprises a metal armor, a dampproof coating and a wear-resistant coating;
the outer side wall of the fire-resistant layer is wrapped with metal armors.
Further preferred is: the outer side wall of the metal armor is coated with a dampproof coating, and the outer side wall of the dampproof coating is coated with a wear-resistant coating.
By adopting the technical scheme, the embodiment of the utility model has the following advantages:
1. compared with the traditional polyethylene foaming material, the high temperature resistance of the heat-resistant layer is greatly improved, and the heat-resistant layer can be foamed more compactly and uniformly by a compact cell process, so that the heat-resistant temperature of the heat-resistant layer is up to 250 ℃.
2. According to the utility model, the inner side wall of the heat-resistant layer is provided with the filling grooves, so that the inner side of the heat-resistant layer is in a zigzag design, the air filling is increased, the heat insulation effect is improved, the fireproof layer is woven by fireproof fibers, the fireproof temperature is up to more than 1000 ℃, the high-frequency coaxial cable is prevented from being burnt, and the fire source is effectively insulated.
The foregoing summary is for the purpose of the specification only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present utility model will become apparent by reference to the drawings and the following detailed description.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of the present utility model;
FIG. 2 is a split block diagram of the present utility model;
fig. 3 is a cross-sectional structural view of the present utility model.
Reference numerals: 10. a conductor assembly; 11. a conductor; 12. an insulating layer; 20. a composite shielding layer; 21. a first metal shielding layer; 22. a second metal shielding layer; 23. a semiconductor shielding layer; 30. a composite refractory layer; 31. a heat-resistant layer; 32. filling the groove; 33. a refractory layer; 40. a composite protective layer; 41. metal armoring; 42. a moisture-resistant coating; 43. and (3) a wear-resistant coating.
Detailed Description
Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.
Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1-3, an embodiment of the present utility model provides a fire-resistant high-temperature-resistant high-frequency coaxial cable, which comprises a conductor assembly 10, wherein a composite shielding layer 20 is arranged outside the conductor assembly 10, a composite fire-resistant layer 30 is arranged outside the composite shielding layer 20, and the composite fire-resistant layer 30 comprises a heat-resistant layer 31, a filling groove 32 and a fire-resistant layer 33;
the inner side wall of the heat-resistant layer 31 is uniformly provided with filling grooves 32, the outer side wall of the heat-resistant layer 31 is extruded with a fire-resistant layer 33, the heat-resistant layer 31 is made of teflon foam material, and the fine foam process is adopted, so that the heat-resistant layer 31 can be foamed more densely and uniformly, has excellent heat resistance and low temperature resistance, can resist high temperature to 300 ℃ in a short time, can be used continuously at a temperature of generally 240 ℃ to 260 ℃, the heat-resistant composite shielding layer has remarkable heat stability, the inner side wall of the heat-resistant layer 31 is provided with the filling groove 32, the contact area with the composite shielding layer 20 is reduced by air filling, the heat insulation effect is improved, the fireproof layer 33 is woven by fireproof fibers, the heat-resistant composite shielding layer is soft, good in elasticity and high-temperature resistant, has infrared radiation absorption capacity, and has a fireproof temperature of more than 1000 ℃, so that high-frequency coaxial cable combustion is avoided, and a fire source is effectively isolated.
In this embodiment, specific: the conductor assembly 10 includes a conductor 11 and an insulating layer 12;
the outer side wall of the conductor 11 is extruded with an insulating layer 12, the insulating layer 12 is made of ethylene propylene rubber material, the long-term allowable working temperature is 90 ℃, and the allowable temperature of short-circuit thermal stability is 250 ℃.
In this embodiment, specific: the composite shielding layer 20 includes a first metal shielding layer 21, a second metal shielding layer 22, and a semiconductor shielding layer 23;
the first metal shielding layer 21 is wrapped on the outer side wall of the insulating layer 12, and the first metal shielding layer 21 is formed by braiding tinned copper wires, so that magnetic field radiation can be effectively prevented.
In this embodiment, specific: the lateral wall on first metal shielding layer 21 is around having second metal shielding layer 22, and second metal shielding layer 22 is the aluminium foil layer, can effectively prevent electromagnetic radiation, when the cable core takes place the damage, the electric current that leaks can flow into the ground net along first metal shielding layer 21, plays the effect of safety protection.
In this embodiment, specific: the outer side wall of the second metal shielding layer 22 is wrapped with the semiconductor shielding layer 23, and the semiconductor shielding layer 23 can effectively weaken the electric field intensity near burrs and reduce field emission, so that the characteristic of branch discharge resistance is improved.
In this embodiment, specific: the heat resistant layer 31 is extruded on the outer side wall of the semiconductive shield layer 23.
In this embodiment, specific: the composite fire-resistant layer 30 is provided with a composite protective layer 40 on the outside, and the composite protective layer 40 comprises a metal armor 41, a dampproof coating 42 and a wear-resistant coating 43;
the outer side wall of the fire-resistant layer 33 is wrapped with a metal armor 41, the metal armor 41 is formed by braiding galvanized steel wires, the tensile strength, the compressive strength and the like of the coaxial cable can be improved, mechanical protection is provided, and the service life of the coaxial cable is prolonged
In this embodiment, specific: the outer side wall of the metal armor 41 is coated with a dampproof coating 42, the outer side wall of the dampproof coating 42 is coated with a wear-resistant coating 43, the dampproof coating 42 is polyurethane waterproof coating, and has the advantages of high strength, good elasticity, strong adhesion, high temperature resistance, corrosion resistance and the like, and the wear-resistant coating 43 is nano ceramic polymer coating, and has the advantages of strong heat insulation, corrosion resistance, fire resistance, acid and alkali resistance, salt fog resistance, good water resistance, ultraviolet resistance, aging resistance, scouring resistance, antibacterial and mildew resistance and the like.
The utility model works when in work: when the coaxial cable is used, a worker detects whether the high-frequency coaxial cable is complete, after confirming that the coaxial cable is not damaged, the cable is installed at a designated position, the heat-resistant layer 31 is made of a teflon foaming material, a fine foam hole process is adopted, the heat-resistant layer 31 can foam more densely and uniformly, the coaxial cable has excellent heat resistance and low temperature resistance, the coaxial cable can resist high temperature to 300 ℃ in a short time and can be used continuously at 240-260 ℃, the coaxial cable has obvious heat stability, the filling groove 32 is formed in the inner side wall of the heat-resistant layer 31, air is used for filling, the contact area with the composite shielding layer 20 is reduced, the heat insulation effect is improved, the fireproof layer 33 is woven by fireproof fibers, the fireproof layer is soft, good in elasticity and high temperature resistance, has infrared radiation absorption capacity, the fireproof temperature is higher than 1000 ℃, the high-frequency coaxial cable is prevented from burning, a fire source is effectively isolated, and the coaxial cable can work for a long time in a high-temperature environment.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that various changes and substitutions are possible within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (8)
1. A fire resistant high temperature high frequency coaxial cable comprising a conductor assembly (10), characterized in that: the outside of the conductor assembly (10) is provided with a composite shielding layer (20), the outside of the composite shielding layer (20) is provided with a composite fire-resistant layer (30), and the composite fire-resistant layer (30) comprises a heat-resistant layer (31), a filling groove (32) and a fire-resistant layer (33);
filling grooves (32) are uniformly formed in the inner side wall of the heat-resistant layer (31), and a fire-resistant layer (33) is extruded on the outer side wall of the heat-resistant layer (31).
2. The fire resistant high temperature and high frequency coaxial cable according to claim 1, wherein: the conductor assembly (10) comprises a conductor (11) and an insulating layer (12);
an insulating layer (12) is extruded on the outer side wall of the conductor (11).
3. A fire resistant high temperature and high frequency coaxial cable according to claim 2, wherein: the composite shielding layer (20) comprises a first metal shielding layer (21), a second metal shielding layer (22) and a semiconductor shielding layer (23);
the first metal shielding layer (21) is wrapped on the outer side wall of the insulating layer (12).
4. A fire resistant high temperature and high frequency coaxial cable according to claim 3, wherein: the outer side wall of the first metal shielding layer (21) is wrapped with a second metal shielding layer (22).
5. The fire resistant high temperature and high frequency coaxial cable according to claim 4, wherein: the outer side wall of the second metal shielding layer (22) is wrapped with a semiconductor shielding layer (23).
6. The fire resistant high temperature and high frequency coaxial cable according to claim 5, wherein: the heat-resistant layer (31) is extruded on the outer side wall of the semiconductor shielding layer (23).
7. The fire resistant high temperature and high frequency coaxial cable according to claim 1, wherein: the outside of the composite refractory layer (30) is provided with a composite protective layer (40), and the composite protective layer (40) comprises a metal armor (41), a dampproof coating (42) and a wear-resistant coating (43);
the outer side wall of the fire-resistant layer (33) is wrapped with a metal armor (41).
8. The fire resistant high temperature and high frequency coaxial cable according to claim 7, wherein: the outer side wall of the metal armor (41) is coated with a moisture-proof coating (42), and the outer side wall of the moisture-proof coating (42) is coated with a wear-resistant coating (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321186317.XU CN219800531U (en) | 2023-05-17 | 2023-05-17 | Fire-resistant high-temperature-resistant high-frequency coaxial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321186317.XU CN219800531U (en) | 2023-05-17 | 2023-05-17 | Fire-resistant high-temperature-resistant high-frequency coaxial cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219800531U true CN219800531U (en) | 2023-10-03 |
Family
ID=88187707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321186317.XU Active CN219800531U (en) | 2023-05-17 | 2023-05-17 | Fire-resistant high-temperature-resistant high-frequency coaxial cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219800531U (en) |
-
2023
- 2023-05-17 CN CN202321186317.XU patent/CN219800531U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112102985B (en) | Data transmission cable for nuclear power station with high radiation resistance and long service life | |
| CN203826087U (en) | High-temperature-resistance 1E-type nuclear-power-station-used K3-grade cable | |
| CN202171970U (en) | Low-smoke halogen-free flame retardant fireproof cable used in urban railway system | |
| CN219800531U (en) | Fire-resistant high-temperature-resistant high-frequency coaxial cable | |
| CN209880229U (en) | Waterproof directly-buried photovoltaic cable | |
| CN117316514A (en) | Flat copper wire cable with multi-core shielding fireproof structure | |
| CN112435782A (en) | Polyvinyl chloride insulation nylon sheath cable | |
| CN209843308U (en) | Crosslinked polyethylene cable | |
| CN215680169U (en) | Explosion-proof cable | |
| CN212365549U (en) | Rectangular audio and video communication cable with anti-electromagnetic interference aramid fiber woven reinforcing layer | |
| CN208173261U (en) | Intelligent robot fiber reinforces fexible conductor graphite shielding layer and controls cable | |
| CN210640011U (en) | Flexible fireproof cable that feature of environmental protection is strong | |
| CN103400642A (en) | Medium-voltage flexible cable for high-current-carrying, distortion-resistant and weather-proof type wind turbine generator | |
| CN103714889A (en) | Novel multi-core high temperature resistant control cable | |
| CN215731028U (en) | High-temperature-resistant coaxial cable | |
| CN207517381U (en) | A kind of integrated form composite optical cable | |
| CN214796840U (en) | Anti-aging corrosion-resistant mineral insulated fireproof cable | |
| CN221040563U (en) | Soft water-cooling variable frequency cable | |
| CN211578412U (en) | Intelligent household rectangular wiring wire with double-layer insulation thin-wall sheath | |
| CN212724770U (en) | Rectangular towline control cable with anti-electromagnetic interference aramid fiber woven reinforcing layer | |
| CN2200223Y (en) | Fluorinated plastic insulation and sheath fire-proof control cable | |
| CN221427432U (en) | Ethylene-propylene rubber insulation halogen-free low-smoke low-toxicity flame-retardant medium-voltage cable for ship | |
| CN219716526U (en) | Direct current 1.5kV photovoltaic cable | |
| CN219105815U (en) | Low-smoke flame-retardant fire-resistant power cable | |
| CN216772896U (en) | Fire-resistant network cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |