CN203801088U - Intelligent fireproof heating cable - Google Patents
Intelligent fireproof heating cable Download PDFInfo
- Publication number
- CN203801088U CN203801088U CN201320674428.5U CN201320674428U CN203801088U CN 203801088 U CN203801088 U CN 203801088U CN 201320674428 U CN201320674428 U CN 201320674428U CN 203801088 U CN203801088 U CN 203801088U
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- China
- Prior art keywords
- layer
- cable
- cable core
- outside
- insulating 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.)
- Expired - Fee Related
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 20
- 239000000919 ceramic Substances 0.000 claims abstract description 10
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 26
- 229910052802 copper Inorganic materials 0.000 claims description 23
- 239000010949 copper Substances 0.000 claims description 23
- 239000011248 coating agent Substances 0.000 claims description 17
- 238000000576 coating method Methods 0.000 claims description 17
- 230000004888 barrier function Effects 0.000 claims description 16
- 229910052736 halogen Inorganic materials 0.000 claims description 15
- 150000002367 halogens Chemical class 0.000 claims description 15
- 239000000779 smoke Substances 0.000 claims description 15
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 9
- 239000004917 carbon fiber Substances 0.000 claims description 9
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 9
- 239000011707 mineral Substances 0.000 claims description 9
- 238000004079 fireproofing Methods 0.000 claims description 7
- 238000009422 external insulation Methods 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 3
- 239000002322 conducting polymer Substances 0.000 claims description 3
- 229920001940 conductive polymer Polymers 0.000 claims description 3
- 239000002245 particle Substances 0.000 abstract description 11
- 239000004945 silicone rubber Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 57
- 230000000694 effects Effects 0.000 description 13
- 238000009413 insulation Methods 0.000 description 12
- 229920000642 polymer Polymers 0.000 description 8
- 230000007613 environmental effect Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000005672 electromagnetic field Effects 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000000805 composite resin Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 229920000592 inorganic polymer Polymers 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 229920000620 organic polymer Polymers 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model relates to the technical field of power electronics and specifically to a heating cable. The intelligent fireproof heating cable comprising a cable wire core wrapped in an insulating layer. The insulating layer is successively wrapped in a shielding layer and a sheath layer from inside to outside and is composed of an inner insulating layer produced by mixing high-molecular material and conductive particles and an outer insulating layer produced by ceramic silicone rubber. By means of the above technical scheme, the intelligent fireproof heating cable not only has an environmentally-friendly characteristic, but also may control the heating temperature range of the cable. Double insulating layer structures greatly improve product use safety.
Description
Technical field
The utility model relates to electric and electronic technical field, is specifically related to a kind of heating cable.
Background technology
Heating cable is taking electric power as the energy, utilizes alloy resistance wire to carry out heating power, reaches a kind of construction of cable of heating or heat insulation effect.Heating cable inner core is made up of cold line hot line, and outside is made up of insulating barrier, ground connection, screen and oversheath.After energising, hot line heating, and move in the temperature range of 40 DEG C～60 DEG C, be embedded in the heating cable in packed layer, heat energy is passed to heated body by heat conducting mode and the far-infrared thermal radiation mode of the 8um～13um sending.
Due to the internal core that thermal source is cable, its actual operation logic is the thermal losses of cable in electric power transfer process.And the insulating barrier of traditional heating cable is playing the heat transference efficiency that can reduce heating cable of insulating effect, affect the normal work of heating cable.
Utility model content
The purpose of this utility model is, a kind of intelligent fire-proofing heating cable is provided, and solves above technical problem.
The technical problem that the utility model solves can realize by the following technical solutions:
Intelligent fire-proofing heating cable, comprise cable core, be wrapped with an insulating barrier at described cable core, the outside of described insulating barrier is provided with screen and restrictive coating from inside to outside successively, it is characterized in that, described insulating barrier comprises inner insulating layer, the external insulation layer that adopts ceramic silicon rubber to make that an employing conducting polymer composite is made, and described conducting polymer composite is the mixture of macromolecular material and conductive particle.
The utility model, by double insulating layer structure is set, has increased the safety in utilization of product, and wherein inner insulating layer is made up of macromolecular material hybrid conductive particle, has low temperature conducting, the performance of high-temperature insulation.When inner insulating layer is during in low temperature, the conducting particles of polymer scale intergranular forms conductive network, is conducting state, make inner insulating layer conduction, be equivalent to increase the wire diameter of cable core, be convenient to produce more heats, reduced or remitted the effect of traditional insulating barrier, heat is able to outwards transmit rapidly simultaneously; In the time that electric current increases gradually, the temperature of inner insulating layer also increases, and polymer volume expands, in the time that inner insulating layer reaches temperature and bears the limit, polymer all transfers noncrystalline state to by crystalline state, the network that links of conducting particles is ruptured, thereby make inner insulating layer insulation, the inner insulating layer after insulation plays the effect of traditional insulating barrier, be equivalent to reduce the wire diameter of cable core, increased the obstruction of hot transmission, reduced heat transference efficiency, now therefore and gradually cable temperature will reduce; When temperature continues reduce and no longer include after large electric current, after waiting for a period of time, polymer recovers crystalline state, conducting particles has wherein built again conductive network, make inner insulating layer conducting again, continue to improve heat transference efficiency, go round and begin again, to reach the effect of the heating-up temperature scope of automatic control heating cable, prevent from burning cable after overtemperature, cause that the situations such as fire occur.External insulation layer adopts ceramic silicon rubber to make; ceramic silicon rubber is a kind of between organic and inorganic polymer; have the high thermal conduction characteristic of ceramic high-melting-point and silicon rubber concurrently; existing certain pliability; there is again higher intensity; high temperature resistant aging with soda acid; it is a kind of insulating material of excellence; can effectively protect cable core; owing to thering is high thermal conduction characteristic and insulation characterisitic; make it the in the situation that of inner insulating layer conducting, can either keep insulation effect, can not cause too large obstruction to heat transmission again.
The cable core that described cable core adopts carbon fiber exothermic part to make.The utility model, by the metallic conductor of traditional cable core is replaced to carbon fiber, has improved the pliability of product.Carbon fiber is a kind of material of mechanical property excellence, proportion is less than 1/4 of steel, the tensile strength of carbon fiber resin composite material is generally all more than 3500Mpa, 7～9 times of steel, its axial strength and modulus are high, density is low, good without superhigh temperature resistant under creep, non-oxidizing atmosphere, fatigue durability, thermal coefficient of expansion is little and have an anisotropy.Due to the characteristic of carbon fibre material, make, as guaranteeing on the basis of cable core function after cable core, to make the overall weight of cable product less, but keep conduction and thermal conduction characteristic, increase again mechanical strength.
The shielding layer of copper wires that described screen adopts copper wire to make.When passing in cable core after electric current, because electromagnetic induction can form magnetic field around cable, will impact health and other electrical equipment if electromagnetic field exceedes 100 micro-teslas, by shielding layer of copper wires is set, electromagnetic field is limited in core, make it to be diffused into outside; Meanwhile, screen made of copper is also conducive to increase mechanical strength and the tensile strength of whole cable, extends its useful life.
Between described screen and described restrictive coating, be provided with a lapping layer, described lapping layer adopts mineral matter band lapping layer.The utility model, by mineral matter band lapping layer is set, has strengthened the high temperature resistant and fire protecting performance of product, because the mineral matter inorganic material organic material of comparing is more slim and graceful, has saved material and has also alleviated product weight, is convenient to transport; Mineral matter major part has higher melt, also has good flexibility simultaneously, even if while burning under excessive temperature, does not also substantially have the phenomenon of volatilization harmful substance, is the insulating material of safety and environmental protection.
The copper sheath layer that described restrictive coating is made of copper.The utility model adopts copper as restrictive coating material, make the heat-conductive characteristic of cable better, and copper does not possess combustion characteristics, therefore can effectively avoid discharging in traditional restrictive coating material combustion and burning the problem of harmful substance.
Described copper sheath layer is also provided with the low smoke and zero halogen sheath that a use low smoke and zero halogen material is made outward, and in Product transport process, low smoke and zero halogen sheath can effectively protect copper sheath layer injury-free; In the time of burning, low smoke and zero halogen sheath can not produce toxic gas, has safety and the effect of environmental protection.
Described cable core is at least provided with two, the outside of arbitrary described cable core be respectively equipped with one described in insulating barrier, at least two described cable cores are after pencil arrangement, closely wrap up from inside to outside described screen and described lapping layer in outside, described lapping layer is provided with described restrictive coating and described low smoke and zero halogen sheath outward successively;
In gap after at least two described cable cores are arranged and between described screen, be provided with inserts, so that the inner interlayer structure of reinforcement electric cable.
In the time that cable core is provided with two, the cross section of two described cable cores is word order, outside at two described cable cores after arrangement is closely wrapped up described screen and described lapping layer from inside to outside, be provided with successively described restrictive coating and described low smoke and zero halogen sheath outward at described lapping layer, between described restrictive coating and described lapping layer, be provided with described inserts, after whole cable molding, keep circular cross-section to make.
Beneficial effect: owing to adopting technique scheme, the utility model not only has environmental protection characteristic, heating temp scope that can also control cables, double hyer insulation layer structure improved the safety in utilization of product greatly.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is another kind of structural representation of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with further elaboration the utility model of concrete diagram.
With reference to Fig. 1; intelligent fire-proofing heating cable; comprise the cable core 1 that carbon fiber exothermic part is made; outside cable core 1, be provided with successively from inside to outside insulating barrier, screen 4, lapping layer 5, copper sheath layer 6 and low smoke and zero halogen sheath 7, wherein insulating barrier comprises the inner insulating layer 2 that adopts macromolecular material and conductive particle to be mixed and the external insulation layer 3 that adopts ceramic silicon rubber to make.
The utility model, by double insulating layer structure is set, has increased the safety in utilization of product, and wherein inner insulating layer is made up of macromolecular material hybrid conductive particle, has low temperature conducting, the performance of high-temperature insulation.When inner insulating layer is during in low temperature, the conducting particles of polymer scale intergranular forms conductive network, is conducting state, make inner insulating layer conduction, be equivalent to increase the wire diameter of cable core, be convenient to produce more heats, reduced or remitted the effect of traditional insulating barrier, heat is able to outwards transmit rapidly simultaneously; In the time that electric current increases gradually, the temperature of inner insulating layer also increases, and polymer volume expands, in the time that inner insulating layer reaches temperature and bears the limit, polymer all transfers noncrystalline state to by crystalline state, the network that links of conducting particles is ruptured, thereby make inner insulating layer insulation, the inner insulating layer after insulation plays the effect of traditional insulating barrier, be equivalent to reduce the wire diameter of cable core, increased the obstruction of hot transmission, reduced heat transference efficiency, now therefore and gradually cable temperature will reduce; When temperature continues reduce and no longer include after large electric current, after waiting for a period of time, polymer recovers crystalline state, conducting particles has wherein built again conductive network, make inner insulating layer conducting again, continue to improve heat transference efficiency, go round and begin again, to reach the effect of the heating-up temperature scope of automatic control heating cable, prevent that superhigh temperature from burning cable, cause that the situations such as fire occur.External insulation layer adopts ceramic silicon rubber to make; ceramic silicon rubber is a kind of between organic and inorganic polymer; have the high thermal conduction characteristic of ceramic high-melting-point and silicon rubber concurrently; existing certain pliability; there is again higher intensity; high temperature resistant aging with soda acid; it is a kind of insulating material of excellence; can effectively protect cable core; owing to thering is high thermal conduction characteristic and insulation characterisitic; make it the in the situation that of inner insulating layer conducting, can either keep insulation effect, can not cause too large obstruction to heat transmission again.
The utility model, by the metallic conductor of traditional cable core is replaced to carbon fiber, has improved the pliability of product.Carbon fiber is a kind of material of mechanical property excellence, proportion is less than 1/4 of steel, the tensile strength of carbon fiber resin composite material is generally all more than 3500Mpa, 7～9 times of steel, its axial strength and modulus are high, density is low, good without superhigh temperature resistant under creep, non-oxidizing atmosphere, fatigue durability, thermal coefficient of expansion is little and have an anisotropy.Due to the characteristic of carbon fibre material, make, as guaranteeing on the basis of cable core function after cable core, to make the overall weight of cable product less, but keep conduction and thermal conduction characteristic, increase again mechanical strength.
The shielding layer of copper wires that screen 4 adopts copper wire to make.When passing in cable core after electric current, because electromagnetic induction can form magnetic field around cable, will impact health and other electrical equipment if electromagnetic field exceedes 100 micro-teslas, by shielding layer of copper wires is set, electromagnetic field is limited in core, make it to be diffused into outside; Meanwhile, screen made of copper is also conducive to increase mechanical strength and the tensile strength of whole cable, extends its useful life.
Lapping layer 5 adopts mineral matter band lapping layer.The utility model, by mineral matter band lapping layer is set, has strengthened the high temperature resistant and fire protecting performance of product, because the mineral matter inorganic material organic material of comparing is more slim and graceful, has saved material and has also alleviated product weight, is convenient to transport; Mineral matter major part has higher melt, also has good flexibility simultaneously, even if while burning under excessive temperature, does not also substantially have the phenomenon of volatilization harmful substance, is the insulating material of safety and environmental protection.
The copper sheath layer that restrictive coating 6 is made of copper.The utility model adopts copper as restrictive coating material, make the heat-conductive characteristic of cable better, and copper does not possess combustion characteristics, therefore can effectively avoid discharging in traditional restrictive coating material combustion and burning the problem of harmful substance.Copper sheath layer is also provided with the low smoke and zero halogen sheath 7 that a use low smoke and zero halogen material is made outward, and in Product transport process, low smoke and zero halogen sheath 7 can effectively protect copper sheath layer injury-free; In the time of burning, low smoke and zero halogen sheath 7 can not produce toxic gas, has safety and the effect of environmental protection.
With reference to Fig. 2, cable core 1 is provided with two, two cable core 1 outsides are wrapped up respectively inner insulating layer 2 and external insulation layer 3 from inside to outside, the cross section of two cable cores 1 is word order, entirety at two cable cores 1 after arrangement is closely wrapped up screen 4 and lapping layer 5 from inside to outside in outside, outside lapping layer 5, be provided with successively restrictive coating 6 and low smoke and zero halogen sheath 7, between restrictive coating 6 and lapping layer 5, be provided with inserts, after whole cable molding, keep circular cross-section to make.
More than show and described general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. intelligent fire-proofing heating cable, comprise cable core, be wrapped with an insulating barrier at described cable core, the outside of described insulating barrier is provided with screen and restrictive coating from inside to outside successively, it is characterized in that, described insulating barrier comprises the inner insulating layer that an employing conducting polymer composite is made, one external insulation layer that adopts ceramic silicon rubber to make, the cable core that described cable core adopts carbon fiber exothermic part to make, the shielding layer of copper wires that described screen adopts copper wire to make, between described screen and described restrictive coating, be provided with a lapping layer, described lapping layer adopts mineral matter band lapping layer, the copper sheath layer that described restrictive coating is made of copper.
2. intelligent fire-proofing heating cable according to claim 1, is characterized in that, described copper sheath layer is also provided with the low smoke and zero halogen sheath that a use low smoke and zero halogen material is made outward.
3. intelligent fire-proofing heating cable according to claim 2, it is characterized in that, described cable core is at least provided with two, the outside of arbitrary described cable core be respectively equipped with one described in insulating barrier, at least two described cable cores are after pencil arrangement, closely wrap up from inside to outside described screen and described lapping layer in outside, described lapping layer is provided with described restrictive coating and described low smoke and zero halogen sheath outward successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320674428.5U CN203801088U (en) | 2013-10-29 | 2013-10-29 | Intelligent fireproof heating cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320674428.5U CN203801088U (en) | 2013-10-29 | 2013-10-29 | Intelligent fireproof heating cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203801088U true CN203801088U (en) | 2014-08-27 |
Family
ID=51383271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320674428.5U Expired - Fee Related CN203801088U (en) | 2013-10-29 | 2013-10-29 | Intelligent fireproof heating cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203801088U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106559927A (en) * | 2016-11-24 | 2017-04-05 | 无锡大洋高科热能装备有限公司 | A kind of ribbon heater |
| CN108419314A (en) * | 2018-04-11 | 2018-08-17 | 沈阳瑞华特种电缆有限公司 | A kind of cable |
| US11956865B2 (en) | 2017-02-01 | 2024-04-09 | Nvent Services Gmbh | Low smoke, zero halogen self-regulating heating cable |
-
2013
- 2013-10-29 CN CN201320674428.5U patent/CN203801088U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106559927A (en) * | 2016-11-24 | 2017-04-05 | 无锡大洋高科热能装备有限公司 | A kind of ribbon heater |
| US11956865B2 (en) | 2017-02-01 | 2024-04-09 | Nvent Services Gmbh | Low smoke, zero halogen self-regulating heating cable |
| CN108419314A (en) * | 2018-04-11 | 2018-08-17 | 沈阳瑞华特种电缆有限公司 | A kind of cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 |