CN220155229U - Special cable structure - Google Patents
Special cable structure Download PDFInfo
- Publication number
- CN220155229U CN220155229U CN202321561445.8U CN202321561445U CN220155229U CN 220155229 U CN220155229 U CN 220155229U CN 202321561445 U CN202321561445 U CN 202321561445U CN 220155229 U CN220155229 U CN 220155229U
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- China
- Prior art keywords
- layer
- fixedly connected
- armor
- tensile
- fireproof
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- 239000003063 flame retardant Substances 0.000 claims abstract description 43
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229910052751 metal Inorganic materials 0.000 claims abstract description 21
- 239000002184 metal Substances 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims description 15
- 239000000395 magnesium oxide Substances 0.000 claims description 12
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 12
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims 4
- 238000002485 combustion reaction Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 8
- 229920001903 high density polyethylene Polymers 0.000 abstract description 7
- 239000004700 high-density polyethylene Substances 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000007779 soft material Substances 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000005855 radiation Effects 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
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model relates to the technical field of cables, in particular to a special cable structure, which comprises a cable body and a fireproof assembly; the fireproof assembly comprises an insulating layer, a tensile layer, a buffer layer, a flame retardant layer, an inner liner layer and an armor layer; the insulating layer plays an insulating role; the tensile layer is of a steel wire belt mesh structure and is used for improving the overall tensile performance; the buffer layer is made of soft materials and is used for relieving external impact; the flame-retardant layer is used for preventing combustion and improving fireproof performance; the inner liner is used for being matched with the mounting armor layer, the armor layer is used for providing metal protection, the structure inside the armor layer is prevented from being damaged during transportation or mounting, and the inner liner is matched with the buffer layer for use; the use of the high-density polyethylene jacket is canceled, the armor layer is adopted instead, the anti-corrosion effect is achieved, long-time combustion can not occur when an open fire is met, meanwhile, the flame-retardant layer is arranged in the whole, the fireproof effect is improved, and therefore the fireproof performance is better.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a special cable structure.
Background
The heating cable is electrified to generate heat, and is widely applied to occasions such as pipeline heat tracing, tank heat tracing, roof snow melting, ground radiation heating, road snow melting and deicing, step snow melting and deicing, buried pipeline heat tracing and the like.
The existing heating cable is generally composed of three parts, namely a heating conductor, a mineral insulating layer and a metal sheath from inside to outside, and a layer of high-density polyethylene jacket is sleeved on the metal sheath for corrosion protection.
However, the existing heating cable cannot be burned by open fire, and once the existing heating cable is burned by open fire, the high-density polyethylene jacket is easy to burn, so that the whole cable starts to burn, and the whole cable is easy to burn after long-time high-temperature burning.
Disclosure of Invention
The utility model aims to provide a special cable structure with better fireproof performance.
In order to achieve the above purpose, the present utility model provides a special cable structure, comprising a cable body and a fireproof assembly;
the fireproof assembly comprises an insulating layer, a tensile layer, a buffer layer, a flame retardant layer, an inner liner layer and an armor layer; the insulating layer is fixedly connected with the cable body and is positioned at one side of the cable body; the tensile layer is fixedly connected with the insulating layer and is positioned at one side of the insulating layer far away from the cable body; the buffer layer is fixedly connected with the tensile layer and is positioned at one side of the tensile layer far away from the insulating layer; the flame-retardant layer is fixedly connected with the buffer layer and is positioned at one side of the buffer layer away from the tensile layer; the inner liner layer is fixedly connected with the flame-retardant layer and is positioned at one side of the flame-retardant layer far away from the buffer layer; the armor with inner liner fixed connection, and be located the inner liner is kept away from fire-retardant layer one side.
Wherein the fire protection assembly further comprises a fire protection layer; the fire-proof layer with armor fixed connection is located the armor is kept away from inner liner one side.
Wherein the flame retardant layer comprises an inner flame retardant layer, an intermediate layer and an outer flame retardant layer; the inner resistance layer is fixedly connected with the buffer layer and is positioned at one side of the buffer layer away from the tensile layer; the middle layer is fixedly connected with the inner resistance layer and is positioned on one side of the inner resistance layer away from the buffer layer; the outer flame retardant layer is fixedly connected with the middle layer, fixedly connected with the inner liner layer and positioned between the middle layer and the inner liner layer.
The cable body comprises a metal sheath, a magnesium oxide layer and a plurality of heating conductors; the metal sheath is fixedly connected with the insulating layer and is positioned at one side of the insulating layer far away from the tensile layer; the magnesium oxide layer is fixedly connected with the metal sheath and is positioned at one side of the metal sheath far away from the insulating layer; the heating conductors are respectively arranged inside the magnesium oxide layer.
Wherein, the special cable structure also comprises a temperature sensing color-changing layer; the temperature sensing color-changing layer is fixedly connected with the fireproof layer and is positioned on one side, far away from the armor layer, of the fireproof layer.
According to the special cable structure, the insulating layer plays an insulating role and cuts the cable body from the outer part; the tensile layer is of a steel wire mesh structure and is used for improving the overall tensile performance; the buffer layer is made of soft materials and is used for relieving external impact and preventing the impact from directly acting on the cable body; the flame-retardant layer is used for preventing combustion and improving fireproof performance; the inner liner is used for being matched with the armor layer, the armor layer is used for providing metal protection, so that the structure inside the armor layer is prevented from being damaged during transportation or installation, and the inner liner is matched with the buffer layer for use; the use of the high-density polyethylene jacket is canceled, the armor layer is adopted instead, the anti-corrosion effect is achieved, long-time combustion can not occur when open fire is met, meanwhile, the flame-retardant layer is installed in the whole, the fireproof effect is improved, and therefore the anti-corrosion type fire-proof material has better fireproof performance.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is an overall cross-sectional view of a first embodiment of the present utility model.
Fig. 2 is an overall cross-sectional view of a second embodiment of the present utility model.
The cable comprises a cable body, a 102-fireproof component, a 103-insulating layer, a 104-tensile layer, a 105-buffer layer, a 106-flame retardant layer, a 107-inner lining layer, a 108-armor layer, a 109-fireproof layer, a 110-inner flame retardant layer, a 111-middle layer, a 112-outer flame retardant layer, a 113-metal sheath, a 114-magnesium oxide layer, a 115-heating conductor and a 201-thermochromic layer.
Detailed Description
The first embodiment of the utility model is as follows:
referring to fig. 1, fig. 1 is a cross-sectional view of a first embodiment of the present utility model.
The utility model provides a special cable structure which comprises: comprising a cable body 101 and a fire protection assembly 102; the fireproof assembly 102 comprises an insulating layer 103, a tensile layer 104, a buffer layer 105, a flame retardant layer 106, an inner lining 107, an armor layer 108 and a fireproof layer 109; the flame retardant layer 106 includes an inner flame retardant layer 110, an intermediate layer 111, and an outer flame retardant layer 112; the cable body 101 includes a metal jacket 113, a magnesium oxide layer 114, and a plurality of heat-generating conductors 115. The scheme can have better fireproof performance.
For the present embodiment, the cable body 101 is a heating cable not covered with a high-density polyethylene jacket in the prior art.
Wherein, the insulating layer 103 is fixedly connected with the cable body 101 and is positioned at one side of the cable body 101; the tensile layer 104 is fixedly connected with the insulating layer 103 and is positioned at one side of the insulating layer 103 far away from the cable body 101; the buffer layer 105 is fixedly connected with the tensile layer 104 and is positioned at one side of the tensile layer 104 away from the insulating layer 103; the flame retardant layer 106 is fixedly connected with the buffer layer 105 and is positioned on one side of the buffer layer 105 away from the tensile layer 104; the inner liner 107 is fixedly connected with the flame retardant layer 106, and is located at a side of the flame retardant layer 106 away from the buffer layer 105; the armor 108 is fixedly connected with the inner liner 107 and is positioned on one side of the inner liner 107 away from the flame retardant layer 106. The insulating layer 103 plays an insulating role to separate the cable body 101 from the outside; the tensile layer 104 is of a steel wire mesh structure and is used for improving the overall tensile performance; the buffer layer 105 is made of soft material, and is used for relieving external impact and preventing the impact from directly acting on the cable body 101; the flame retardant layer 106 is used for preventing combustion and improving fireproof performance; the lining layer 107 is used for installing the armor layer 108 in a matching way, the armor layer 108 is used for providing metal protection, avoiding the damage of the structure inside the armor layer 108 during transportation or installation, and is used together with the buffer layer 105; the use of the high-density polyethylene jacket is eliminated, the armor layer 108 is adopted instead, the anti-corrosion effect is achieved, long-time combustion can not occur when an open fire is met, meanwhile, the flame retardant layer 106 is installed in the whole, the fireproof effect is improved, and therefore the fireproof performance is better.
Next, the fireproof layer 109 is fixedly connected with the armor layer 108, and is located on a side of the armor layer 108 away from the inner liner 107. The fireproof layer 109 is made of mineral glass magnesium fireproof materials, so that the overall fireproof performance is further improved.
Meanwhile, the inner resistance layer 110 is fixedly connected with the buffer layer 105, and is located at a side of the buffer layer 105 away from the tensile layer 104; the intermediate layer 111 is fixedly connected to the inner combustion layer 110 and is located on the side of the inner combustion layer 110 remote from the buffer layer 105; the outer flame retardant layer 112 is fixedly connected with the middle layer 111, fixedly connected with the inner liner layer 107, and positioned between the middle layer 111 and the inner liner layer 107. The inner flame retardant layer 110 and the outer flame retardant layer 112 are both made of a material that is not easy to burn, such as mica tape, and the middle layer 111 sandwiched between the inner flame retardant layer 110 and the outer flame retardant layer 112 may be fireproof cotton, so that the three materials cooperate to improve fireproof performance.
In addition, the metal sheath 113 is fixedly connected with the insulating layer 103, and is located at one side of the insulating layer 103 away from the tensile layer 104; the magnesium oxide layer 114 is fixedly connected with the metal sheath 113, and is positioned at one side of the metal sheath 113 away from the insulating layer 103; the plurality of heat-generating conductors 115 are respectively disposed inside the magnesium oxide layer 114. The heating conductor 115 is electrified to generate heat, the magnesium oxide layer 114 is formed by extruding magnesium oxide powder into the metal sheath 113, and the metal sheath 113 is used for transferring heat.
In the special cable structure of the embodiment, the insulating layer 103 plays an insulating role to separate the cable body 101 from the outer part; the tensile layer 104 is of a steel wire mesh structure and is used for improving the overall tensile performance; the buffer layer 105 is made of soft material, and is used for relieving external impact and preventing the impact from directly acting on the cable body 101; the flame retardant layer 106 is used for preventing combustion and improving fireproof performance; the lining layer 107 is used for installing the armor layer 108 in a matching way, the armor layer 108 is used for providing metal protection, avoiding the damage of the structure inside the armor layer 108 during transportation or installation, and is used together with the buffer layer 105; the use of the high-density polyethylene jacket is canceled, the armor layer 108 is adopted instead, the anti-corrosion effect is achieved, long-time combustion can not occur when an open fire is met, and meanwhile, the flame retardant layer 106 and the fireproof layer 109 are integrally arranged, so that the fireproof effect is improved, and the fireproof performance is better.
The second embodiment of the utility model is as follows:
on the basis of the first embodiment, please refer to fig. 2, wherein fig. 2 is an overall cross-sectional view of a second embodiment of the present utility model.
The special cable structure provided by the utility model further comprises a thermochromic layer 201.
For this embodiment, the thermochromic layer 201 is fixedly connected to the fireproof layer 109, and is located on a side of the fireproof layer 109 away from the armor layer 108. The temperature sensing color-changing layer 201 can change color according to the overall temperature change of the cable, and when faults occur and the overall heating value of the cable is overlarge, the color of the temperature sensing color-changing layer 201 can change to remind workers.
According to the special cable structure, the temperature sensing color-changing layer 201 can change color according to the overall temperature change of the cable, and when faults occur and the overall heating value of the cable is overlarge, the color of the temperature sensing color-changing layer 201 can change to remind workers.
The foregoing disclosure is only illustrative of one or more preferred embodiments of the present utility model, and it is not intended to limit the scope of the claims hereof, as persons of ordinary skill in the art will understand that all or part of the processes for practicing the embodiments described herein may be practiced with equivalent variations in the claims, which are within the scope of the utility model.
Claims (5)
1. A special cable structure comprises a cable body and is characterized in that,
also includes a fire protection assembly;
the fireproof assembly comprises an insulating layer, a tensile layer, a buffer layer, a flame retardant layer, an inner liner layer and an armor layer;
the insulating layer is fixedly connected with the cable body and is positioned at one side of the cable body; the tensile layer is fixedly connected with the insulating layer and is positioned at one side of the insulating layer far away from the cable body; the buffer layer is fixedly connected with the tensile layer and is positioned at one side of the tensile layer far away from the insulating layer; the flame-retardant layer is fixedly connected with the buffer layer and is positioned at one side of the buffer layer away from the tensile layer; the inner liner layer is fixedly connected with the flame-retardant layer and is positioned at one side of the flame-retardant layer far away from the buffer layer; the armor with inner liner fixed connection, and be located the inner liner is kept away from fire-retardant layer one side.
2. A specialty cable construction according to claim 1, wherein,
the fire protection assembly further comprises a fire protection layer; the fire-proof layer with armor fixed connection is located the armor is kept away from inner liner one side.
3. A specialty cable construction according to claim 2, wherein,
the flame retardant layer comprises an inner flame retardant layer, an intermediate layer and an outer flame retardant layer; the inner resistance layer is fixedly connected with the buffer layer and is positioned at one side of the buffer layer away from the tensile layer; the middle layer is fixedly connected with the inner resistance layer and is positioned on one side of the inner resistance layer away from the buffer layer; the outer flame retardant layer is fixedly connected with the middle layer, fixedly connected with the inner liner layer and positioned between the middle layer and the inner liner layer.
4. A specialty cable construction according to claim 3, wherein,
the cable body comprises a metal sheath, a magnesium oxide layer and a plurality of heating conductors; the metal sheath is fixedly connected with the insulating layer and is positioned at one side of the insulating layer far away from the tensile layer; the magnesium oxide layer is fixedly connected with the metal sheath and is positioned at one side of the metal sheath far away from the insulating layer; the heating conductors are respectively arranged inside the magnesium oxide layer.
5. A specialty cable construction according to claim 4 wherein,
the special cable structure further comprises a temperature sensing color-changing layer; the temperature sensing color-changing layer is fixedly connected with the fireproof layer and is positioned on one side, far away from the armor layer, of the fireproof layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321561445.8U CN220155229U (en) | 2023-06-17 | 2023-06-17 | Special cable structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321561445.8U CN220155229U (en) | 2023-06-17 | 2023-06-17 | Special cable structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220155229U true CN220155229U (en) | 2023-12-08 |
Family
ID=89005861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321561445.8U Active CN220155229U (en) | 2023-06-17 | 2023-06-17 | Special cable structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220155229U (en) |
-
2023
- 2023-06-17 CN CN202321561445.8U patent/CN220155229U/en active Active
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