CN220155215U - Continuous filling type rigid fireproof cable - Google Patents
Continuous filling type rigid fireproof cable Download PDFInfo
- Publication number
- CN220155215U CN220155215U CN202321701183.0U CN202321701183U CN220155215U CN 220155215 U CN220155215 U CN 220155215U CN 202321701183 U CN202321701183 U CN 202321701183U CN 220155215 U CN220155215 U CN 220155215U
- Authority
- CN
- China
- Prior art keywords
- layer
- fireproof
- cable
- conductor
- insulating
- 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.)
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Links
- 239000010410 layer Substances 0.000 claims abstract description 50
- 239000004020 conductor Substances 0.000 claims abstract description 38
- 239000011241 protective layer Substances 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 20
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 7
- 239000004033 plastic Substances 0.000 claims abstract description 7
- 229920003023 plastic Polymers 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 5
- 239000003973 paint Substances 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000002657 fibrous material Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 230000009970 fire resistant effect Effects 0.000 description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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 discloses a continuous filling type rigid fireproof cable, which comprises a cable conductor, wherein the cable conductor consists of a plurality of inner cores, and each inner core consists of a central conductor and an insulating sheath coated outside the central conductor; the insulating layer is sleeved outside the cable conductor and is made of insulating rubber materials; the supporting pieces are arranged in a C shape and uniformly sleeved on the cable conductor, the supporting pieces are made of elastic plastic materials, and the directions of the supporting pieces are opposite to each other. The filling layer is filled in the insulating layer and wraps the cable conductor, and the filling layer is made of magnesia powder material; the protective layer is made of steel strip materials and is wrapped outside the insulating layer; the fireproof heat-insulating layer is wrapped outside the protective layer; and the outer protective layer is wrapped outside the fireproof heat insulation layer. The cable inner conductor can be stably arranged in the insulating outer sheath through the supporting mechanism, the whole protection performance is high, and meanwhile bending is not affected.
Description
Technical Field
The utility model relates to the technical field related to fireproof cables, in particular to a continuous filling type rigid fireproof cable.
Background
The mineral insulated fireproof cable (BTTZ) is a fireproof cable with a seamless copper pipe sheath on the outer layer and magnesium oxide crystal powder filled in the middle as an insulating material, and the conductor is generally formed by single-strand or multi-strand copper bars. In the prior art, the equipment for producing the cable is generally characterized in that a seamless copper pipe with a certain size is sleeved on a conductor, then magnesium oxide crystals are filled around the conductor, and the produced cable is poor in flexibility due to the fact that a seamless copper pipe serving as a raw material cannot be bent, so that the applicability is poor, the protection performance of a copper pipe sheath is not high, and the whole protection resistance of the cable cannot reach higher standards.
Disclosure of Invention
In view of the drawbacks and deficiencies of the prior art, according to a first aspect of the present utility model, a continuous-filled rigid fire-resistant cable is presented, comprising: the cable conductor consists of a plurality of inner cores, wherein each inner core consists of a central conductor and an insulating sheath coated outside the central conductor;
the insulating layer is sleeved outside the cable conductor and is made of insulating rubber materials;
the support members are arranged in a C shape and uniformly sleeved on the cable conductors, the support members are made of elastic plastic materials, and the directions of the support members are opposite to each other.
The filling layer is filled in the insulating layer and wraps the cable conductor, and the filling layer is made of magnesia powder material;
the protective layer is made of steel belt materials and wraps the insulating layer;
the fireproof heat insulation layer is wrapped outside the protective layer;
and the outer protective layer is made of modified plastic materials and is wrapped outside the fireproof heat-insulating layer.
Preferably, the support is of resilient plastics material.
Preferably, the fireproof heat-insulating layer is formed by inorganic fireproof paint.
Preferably, the outer protective layer incorporates a fire resistant fibrous material.
Preferably, the protective layer is formed by adopting a spiral wrapping mode.
Preferably, a corrosion-resistant paint layer is coated between the fireproof heat-insulating layer and the protective layer.
Compared with the prior art, the continuous filling type rigid fireproof cable provided by the utility model has the advantages that the steel belt is wrapped outside the insulating layer to replace the effect of a seamless copper pipe, the cable conductor is placed inside and then filled with magnesia material, and finally, two layers of additional protective layers are wrapped outside the protective layer formed by the steel belt to finish the manufacture of the cable.
From this, whole cable is convenient to carry out continuous filling production, and in addition for current rigidity fireproof cable, when keeping higher guard action, also can increase the limit of bending, the suitability when increasing the use, and the additional inoxidizing coating that sets up can further increase whole cable's performance, adapts to different circumstances.
Drawings
Fig. 1 is a schematic structural view of a continuous-filling rigid fireproof cable according to the utility model.
The meaning of the individual reference numerals in the figures is as follows:
1 cable conductor, 2 insulating layer, 3 filling layer, 4 inoxidizing coating, 5 fire prevention insulating layer, 6 outer protective layer, 7 support piece.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
The continuous-filling rigid fireproof cable shown with reference to fig. 1 comprises a plurality of cable conductors 1 for electric power conduction, in particular 5 types of tinned copper conductors, so as to achieve good conduction effect.
The cable conductor 1 consists of a plurality of inner cores, wherein each inner core consists of a central conductor and an insulating sheath (such as a PVC polyethylene insulating layer or XLPE) coated outside the central conductor.
The insulating layer 2 is extruded on the outside of the cable conductor 1, and an insulating rubber material can be used.
Corresponding to the effect of a seamless copper pipe in the existing rigid fireproof cable, the continuous filling type rigid fireproof cable is provided with the protective layer 4, the protective layer 4 is made of steel belt materials and is wrapped outside the insulating layer 2, the protective layer 4 is formed in a spiral wrapping mode, in the production process of the cable, the insulating layer 2 is sleeved on the cable conductor 1, then the rigid layer is formed by spiral wrapping of the steel belt, in the continuous wrapping process, filling operation is performed on the well-formed position of wrapping to form the filling layer 3, the filling layer 3 is filled in the insulating layer 2 and wraps the cable conductor 1, and the filling layer 3 is made of magnesium oxide powder materials, so that the effects of plasticity and fireproof effect increase are achieved.
In the process, the cable conductor 1 needs to be ensured not to be scattered in the whole filling and preparation process, and the utility model is provided with the plurality of supporting pieces 7, the supporting pieces 7 are arranged in a C shape and are uniformly sleeved on the cable conductor 1, the plurality of supporting pieces 7 face opposite to each other, the supporting pieces 7 are made of elastic plastic materials, and the cable conductor 1 can be limited and fixed through the plurality of supporting pieces 7 before the cable conductor 1 is sleeved into the insulating layer 2.
Referring to fig. 1, the fireproof heat-insulating layer 5 is wrapped outside the protective layer 4, and the fireproof heat-insulating layer 5 is formed by filling fireproof paint.
The outer protective layer 6 is wrapped outside the fireproof heat insulation layer 5.
As an alternative example, the outer protective layer 6 is made of a modified plastic material, for example, a fire-resistant fiber material is incorporated into the outer protective layer 6. In particular, a corrosion-resistant paint layer 8 can be coated between the fireproof heat-insulating layer 5 and the protective layer 4 to increase the waterproof and corrosion-resistant effects.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. A continuous filling rigid fireproof cable, comprising
The cable conductor (1), the cable conductor (1) is composed of a plurality of inner cores, the inner cores are composed of a central conductor and insulating skins coated outside the central conductor;
an insulating layer (2), wherein the insulating layer (2) is made of insulating rubber material and is arranged outside the cable conductor (1);
the support pieces (7) are arranged in a C shape and uniformly sleeved on the cable conductor (1), and the support pieces (7) face opposite to each other;
the filling layer (3) is filled in the insulating layer (2) and wraps the cable conductor (1), and the filling layer (3) is made of magnesia powder material;
the protective layer (4) is made of steel strip materials and is wrapped outside the insulating layer (2);
the fireproof heat insulation layer (5), wherein the fireproof heat insulation layer (5) is wrapped outside the protective layer (4);
and the outer protective layer (6), and the outer protective layer (6) is wrapped outside the fireproof heat insulation layer (5).
2. Continuous-fill rigid fireproof cable according to claim 1, characterized in that the support (7) is made of a resilient plastic material.
3. Continuous-fill rigid fireproof cable according to claim 1, characterized in that the fireproof insulation layer (5) is formed of an inorganic fireproof coating.
4. Continuous-fill rigid fireproof cable according to claim 1, characterized in that the outer protective layer (6) is incorporated with a fireproof fibrous material.
5. Continuous-fill rigid fireproof cable according to claim 1, characterized in that the protective layer (4) is formed by means of a spiral wrap.
6. Continuous-fill rigid fireproof cable according to claim 1, characterized in that a corrosion-resistant paint layer (8) is applied between the fireproof insulation layer (5) and the protective layer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321701183.0U CN220155215U (en) | 2023-06-30 | 2023-06-30 | Continuous filling type rigid fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321701183.0U CN220155215U (en) | 2023-06-30 | 2023-06-30 | Continuous filling type rigid fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220155215U true CN220155215U (en) | 2023-12-08 |
Family
ID=89018122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321701183.0U Active CN220155215U (en) | 2023-06-30 | 2023-06-30 | Continuous filling type rigid fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220155215U (en) |
-
2023
- 2023-06-30 CN CN202321701183.0U patent/CN220155215U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |