CN114388189A - Composite cable with good flame-retardant effect - Google Patents
Composite cable with good flame-retardant effect Download PDFInfo
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- CN114388189A CN114388189A CN202210042386.7A CN202210042386A CN114388189A CN 114388189 A CN114388189 A CN 114388189A CN 202210042386 A CN202210042386 A CN 202210042386A CN 114388189 A CN114388189 A CN 114388189A
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 19
- 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 title claims abstract description 16
- 239000002131 composite material Substances 0.000 title claims abstract description 14
- 230000000694 effects Effects 0.000 title claims abstract description 14
- 239000004020 conductor Substances 0.000 claims abstract description 22
- 239000010410 layer Substances 0.000 claims description 45
- 239000011241 protective layer Substances 0.000 claims description 31
- 239000000945 filler Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 11
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 7
- 239000004800 polyvinyl chloride Substances 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 5
- 230000009970 fire resistant effect Effects 0.000 claims description 5
- 239000004745 nonwoven fabric Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 8
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 230000002269 spontaneous effect Effects 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- 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
-
- 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
-
- 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
-
- 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
- H01B7/189—Radial force absorbing layers providing a cushioning effect
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a composite cable with good flame retardant effect, which comprises a plurality of cable cores which are uniformly distributed, wherein a conductor core is arranged in the center of each cable core, a conductor shielding layer is arranged on the periphery of each conductor core, an insulating layer is arranged on the periphery of each conductor shielding layer, an insulating shielding layer is arranged on the periphery of each insulating layer, and a metal shielding layer is arranged on the periphery of each insulating shielding layer, wherein the composite cable with good flame retardant effect also comprises: the fixed core structure is arranged outside the cable cores and used for positioning the cable cores, and the fixed core structure comprises fixed core clamping petals movably sleeved on the outer surface of each cable core. The composite cable with good flame-retardant effect can uniformly disperse the inner conductor bodies of the cable, effectively reduce the mutual influence among the conductor bodies, greatly increase the impact resistance of the cable by adopting some elastic structures, effectively avoid the conditions of spontaneous combustion of the cable and external fire-receiving combustion by adopting a double-layer fire-retardant structure, and ensure the use safety.
Description
Technical Field
The invention relates to the technical field of cable application, in particular to a composite cable with a good flame retardant effect.
Background
The power cable is a cable product used for transmitting and distributing high-power electric energy in a main line of a power system, is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and underwater power transmission lines crossing the river and the sea, and is composed of four parts, namely a wire core, an insulating layer, a shielding layer and a protective layer, the proportion of the cable in the power line is gradually increased, and the power cable is a cable product used for transmitting and distributing high-power electric energy in the main line of the power system and comprises various voltage grades of 1-500KV and above and various insulated power cables. The fire resistance of current cable is not enough, can cause cable burning accident often, can cause the very big economic loss of electric power industry, and the cable is buried on ground simultaneously, and the cable outside can receive the extrusion stress of soil unavoidably, and current cable compressive capacity is also not enough, appears cable extrusion impaired condition easily, influences the normal use of cable.
Disclosure of Invention
In order to solve the problems in the background art, the invention aims to provide a composite cable with good flame retardant effect.
In order to achieve the purpose, the invention provides the following technical scheme: including a plurality of evenly distributed's cable core, cable core center sets up the conductor core, and conductor core periphery sets up the conductor shielding layer, and conductor shielding layer periphery sets up the insulating layer, and the insulating layer periphery sets up the insulation shielding layer, and the insulation shielding layer periphery sets up the metallic shield layer, the compound cable that flame retardant efficiency is good still includes:
the core fixing structure is arranged outside the cable cores and used for positioning each cable core, the core fixing structure comprises a core fixing clamping flap movably sleeved on the outer surface of each cable core, the core fixing clamping flap is a section of circular arc and a two-section symmetrically-distributed involution arm splicing structure, involution arms adjacent to the core fixing clamping flap are jointed, the core fixing clamping flaps are spliced into a whole circular structure, an inner protective layer is arranged on the periphery of the core fixing structure, an armor layer is arranged on the periphery of the inner protective layer, and an outer protective layer is arranged on the periphery of the armor layer; and
the fire-resistant structure is arranged on the periphery of each group of cable cores and on the periphery of the buffer structure and used for conducting internal and external flame retardance on the cable, and the fire-resistant structure comprises a fireproof filler filled in the fixed core structure and a fireproof coating arranged on the periphery of the outer protective layer.
Preferably, the inner sides of the circular arc and the two groups of involutory arms are fixedly provided with elastic arc supports at the positions contacting the cable core.
Preferably, the inner wall of the outer protective layer is fixedly connected with a plurality of elastic arc strips which are uniformly distributed.
Preferably, the armor layer is made of an aluminum mesh material, the fireproof filler is calcium carbonate powder, the outer protective layer is made of polyvinyl chloride, and the inner protective layer is made of non-woven fabric.
Preferably, the distribution center of the cable cores is provided with a reinforced elastic core.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the core fixing structure is arranged, so that the stable fixation of the cable cores can be realized, the cable cores can be dispersed, the influence among the cable cores is reduced, the cable is convenient and quick to combine, the fireproof structure is arranged, the heating and burning inside the cable can be blocked by using the fireproof filler, and the heat resistance outside the cable is increased by using the fireproof coating.
2. According to the invention, by arranging the elastic arc support, a buffer space can be provided for the cable cores, and the mutual compression of the cable cores when the cable is stressed is avoided. According to the invention, by arranging the elastic arc strip, the elastic deformation capacity of the outer protective layer can be increased, the impact resistance of the outer protective layer is increased, and the cable is effectively protected. The cable is provided with the armor layer made of the aluminum net material, so that the flexibility is proper, even if the cable is bent, the armor layer can be effectively supported, the core body of the internal cable is prevented from being extruded and damaged, the fireproof filler made of the calcium carbonate powder is arranged, the combustion spread in the cable can be effectively prevented, the outer protective layer made of the polyvinyl chloride material is arranged, the external heat-resisting capacity of the cable is effectively improved by utilizing the characteristic of the polyvinyl chloride, the generation of combustion accidents is reduced, meanwhile, the plasticity is strong, the cable is suitable for bending of the cable, and the inner protective layer made of the non-woven fabric material is arranged, so that the fixed core clamping flap assembly can be tightened. According to the invention, the reinforced elastic core is arranged, so that the flexible supporting effect on the cable can be achieved, and the cable is prevented from being broken.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of a cable core according to the present invention;
FIG. 3 is a schematic structural diagram of an outer jacket according to the present invention;
fig. 4 is a schematic structural view of a fixed core clip flap of the present invention.
In the figure: 1. involution arms; 2. fixing a core and clamping a valve; 3. an elastic arc support; 4. a fire-resistant filler; 5. an inner protective layer; 6. an armor layer; 7. an outer jacket; 8. a fire-retardant coating; 9. an elastic arc strip; 10. a cable core; 101. a metal shielding layer; 102. an insulating shield layer; 103. an insulating layer; 104. a conductor shield layer; 105. a conductor core; 11. the elastic core is reinforced.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 4, the embodiment of the present invention includes a plurality of cable cores 10 uniformly distributed, a conductor core 105 is disposed in the center of the cable core 10, a conductor shielding layer 104 is disposed on the periphery of the conductor core 105, an insulating layer 103 is disposed on the periphery of the conductor shielding layer 104, an insulating shielding layer 102 is disposed on the periphery of the insulating layer 103, and a metal shielding layer 101 is disposed on the periphery of the insulating shielding layer 102, where the composite cable with a good flame retardant effect further includes:
the core fixing structure is arranged outside the cable cores 10 and used for positioning the cable cores 10, the core fixing structure comprises core fixing clamping flaps 2 movably sleeved on the outer surface of each group of cable cores 10, each core fixing clamping flap 2 is a splicing structure of a section of circular arc and two sections of symmetrically distributed folding arms 1, the folding arms 1 adjacent to the core fixing clamping flaps 2 are attached, the core fixing clamping flaps 2 are spliced into a whole circular structure, an inner protection layer 5 is arranged on the periphery of the core fixing structure, an armor layer 6 is arranged on the periphery of the inner protection layer 5, and an outer protection layer 7 is arranged on the periphery of the armor layer 6; and
the fire-resistant structure is arranged on the periphery of each group of cable core bodies 10 and the periphery of the buffer structure and used for conducting internal and external flame retardance on the cable, and comprises fireproof fillers 4 filled in the fixed core structure and a fireproof coating 8 arranged on the periphery of the outer protective layer 7.
As a technical optimization scheme of the invention, the cable core bodies 10 can be stably fixed by arranging the core fixing structure, the cable core bodies 10 can be dispersed, the influence among the cable core bodies 10 is reduced, the cable is convenient and quick to combine, the fireproof structure is arranged, the heating and burning inside the cable can be blocked by using the fireproof filler 4, and the heat resistance outside the cable is improved by using the fireproof coating 8.
Referring to fig. 1 and 3, the arc and the inner sides of the two sets of involution arms 1 contact the cable core 10 and are fixedly provided with elastic arc supports 3.
As a technical optimization scheme of the invention, the elastic arc support 3 is arranged, so that a buffer space can be provided for the cable core bodies 10, and the cable core bodies 10 are prevented from mutually pressing when a cable is stressed.
Referring to fig. 1 and 4, the inner wall of the outer sheath 7 is fixedly connected with a plurality of elastic arc strips 9 which are uniformly arranged.
As a technical optimization scheme of the invention, the elastic arc strip 9 is arranged, so that the elastic deformation capacity of the outer protective layer 7 can be increased, the impact resistance of the outer protective layer 7 is increased, and the cable is effectively protected.
Armor 6 is the aluminium mesh material, and fire prevention filler 4 is calcium carbonate powder, and outer jacket 9 is the polyvinyl chloride material, and inner sheath 5 is the non-woven fabrics material.
As a technical optimization scheme of the invention, the armor layer 6 made of the aluminum net material is arranged, the flexibility is proper, even if the cable is bent, the armor layer 6 can effectively support and prevent the inner cable core 10 from being extruded and damaged, the fireproof filler 4 made of the calcium carbonate powder is arranged, the combustion spread in the cable can be effectively prevented, the outer protective layer 7 made of the polyvinyl chloride material is arranged, the outer heat-resisting capacity of the cable is effectively improved by utilizing the characteristics of the polyvinyl chloride, the generation of combustion accidents is reduced, meanwhile, the plasticity is strong, the cable is suitable for bending, the inner protective layer 5 made of the non-woven fabric material is arranged, and the assembly of the fixed core clamping flaps 2 can be tightened.
Referring to fig. 1, the distribution center of a plurality of cable cores 10 is provided with a reinforced elastic core 11.
As a technical optimization scheme of the invention, the flexible supporting effect on the cable can be achieved by arranging the reinforced elastic core 11, and the cable is prevented from being broken.
In the cable assembling stage, firstly, a fixed core clamping flap 2 is sleeved on the periphery of a cable core body 10, then all the fixed core clamping flaps 2 with the cable core body 10 are spliced into a whole circle, a reinforced elastic core 11 is arranged in the center of the whole circle, fireproof fillers 4 are filled in gaps between the cable core body 10 and the fixed core clamping flaps 2, then the fixed core clamping flaps 2 are tightened through an inner protective layer 5, an armor layer 6 is sleeved on the periphery of the inner protective layer 5, then an outer protective layer 7 is sleeved, and a fireproof coating 8 is sprayed on the periphery of the outer protective layer 7, so that when the cable is used, an elastic arc strip 9 of the outer protective layer 7 can adapt to the stress deformation of the outer protective layer 7, the elastic arc support 3 of the fixed core clamping flap 2 can buffer the stress of the cable core body 10, and the fireproof coating 8 and the fireproof fillers 4 can retard the flame of the cable, and the using process of the cable is completed.
The composite cable with good flame retardant effect can uniformly disperse the inner conductor bodies of the cable, effectively reduce the mutual influence among the conductor bodies, greatly increase the impact resistance of the cable by adopting some elastic structures, effectively avoid the conditions of spontaneous combustion and external fire-receiving combustion of the cable by adopting a double-layer fire retardant structure, ensure the use safety and have a utilizable value in the technical field of cable application.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a compound cable that flame retardant efficiency is good, includes a plurality of evenly distributed's cable core (10), cable core (10) center sets up conductor core (105), and conductor core (105) periphery sets up conductor shielding layer (104), and conductor shielding layer (104) periphery sets up insulating layer (103), and insulating layer (103) periphery sets up insulating shielding layer (102), and insulating shielding layer (102) periphery sets up metallic shield layer (101), its characterized in that: the composite cable with good flame retardant effect further comprises:
the fixed core structure is arranged outside the cable cores (10) and used for positioning the cable cores (10), the fixed core structure comprises fixed core clamping flaps (2) movably sleeved on the outer surface of each group of cable cores (10), each fixed core clamping flap (2) is a splicing structure of a section of circular arc and two sections of symmetrically distributed splicing arms (1), the splicing arms (1) adjacent to the fixed core clamping flaps (2) are jointed, the fixed core clamping flaps (2) are spliced into a whole circle structure, an inner protective layer (5) is arranged on the periphery of the fixed core structure, an armor layer (6) is arranged on the periphery of the inner protective layer (5), and an outer protective layer (7) is arranged on the periphery of the armor layer (6); and
the fire-resistant structure is arranged on the periphery of each group of cable cores (10) and on the periphery of the buffer structure and used for conducting internal and external flame retardance on the cable, and comprises a fireproof filler (4) filled in the fixed core structure and a fireproof coating (8) arranged on the periphery of an outer protective layer (7).
2. The composite cable with good flame retardant effect as claimed in claim 1, wherein: and the inner sides of the circular arcs and the two groups of involutory arms (1) are fixedly provided with elastic arc supports (3) in contact with the cable core (10).
3. The composite cable with good flame retardant effect according to claim 1 or 2, characterized in that: the inner wall of the outer protective layer (7) is fixedly connected with a plurality of elastic arc strips (9) which are uniformly distributed.
4. The composite cable with good flame retardant effect according to claim 3, characterized in that: the armor layer (6) is made of an aluminum net material, the fireproof filler (4) is calcium carbonate powder, the outer protective layer (7) is made of polyvinyl chloride, and the inner protective layer (5) is made of non-woven fabric.
5. The composite cable with good flame retardant effect as claimed in claim 4, wherein: and a reinforced elastic core (11) is arranged at the distribution center of the cable cores (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210042386.7A CN114388189A (en) | 2022-01-14 | 2022-01-14 | Composite cable with good flame-retardant effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210042386.7A CN114388189A (en) | 2022-01-14 | 2022-01-14 | Composite cable with good flame-retardant effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114388189A true CN114388189A (en) | 2022-04-22 |
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ID=81202601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210042386.7A Pending CN114388189A (en) | 2022-01-14 | 2022-01-14 | Composite cable with good flame-retardant effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114388189A (en) |
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| CN212782842U (en) * | 2020-08-03 | 2021-03-23 | 浙江万马股份有限公司 | High flame-retardant fire-resistant power cable |
| CN112466528A (en) * | 2020-11-20 | 2021-03-09 | 常熟闪通电力科技有限公司 | Cable, photoelectric composite cable and optical cable convenient to easily radiate heat |
| CN214505081U (en) * | 2021-03-01 | 2021-10-26 | 浙江万马股份有限公司 | Fire-resistant fireproof three-core power cable |
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