CN103857080B - A kind of anticorrosion explosion-proof automatic temperature-control electric heating belt - Google Patents
A kind of anticorrosion explosion-proof automatic temperature-control electric heating belt Download PDFInfo
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- CN103857080B CN103857080B CN201410061040.7A CN201410061040A CN103857080B CN 103857080 B CN103857080 B CN 103857080B CN 201410061040 A CN201410061040 A CN 201410061040A CN 103857080 B CN103857080 B CN 103857080B
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Abstract
The invention discloses a kind of anticorrosion explosion-proof automatic temperature-control electric heating belt, comprise ptc material core body; Two wires are established in described ptc material core body; The outside coated one-sided metallic plastics composite band of ptc material core body, establish drainage thread in one-sided metallic plastics composite band, the plastic layer of described one-sided metallic plastics composite band is towards interior, and metal level is outside; The outside coated insulation layer of metallo-plastic composite band; The outside coated woven shield of insulating barrier; The outside coated restrictive coating of woven shield, the outer rim of described restrictive coating is provided with the fold texture being beneficial to heat radiation.The anticorrosion explosion-proof automatic temperature-control electric heating belt that the present invention proposes, its structure is simple, capability of electromagnetic shielding good, use safety in high temperature environments.
Description
Technical field
The present invention relates to electric-heating belt technical field, particularly relate to a kind of anticorrosion explosion-proof automatic temperature-control electric heating belt.
Background technology
Anticorrosion explosion-proof automatic temperature-control electric heating belt has become electric-heating belt type the most general in the world today.They can be widely used in liquid object and carry with the anti-freezing and heat-insulating of tank body in the duct, maintain technological temperature, heating highway, ramp, crossing, eaves and floor etc.Anticorrosion explosion-proof automatic temperature-control electric heating belt is inner, and be dispersed with positive temperature coefficient (PTC) material of heat effect between two conductive cores, its outside is made up of macromolecule sheath, metallic shield net and macromolecule oversheath.When the power is turned on, inner ptc material expanded by heating, resistance becomes large, reduces heating power, temperature is reduced; When the temperature decreases, ptc material meets cold events, resistance decreasing, increases heating power, makes temperature increase, thus reaches the effect automatically regulating temperature.
Because electric-heating belt is certainly as energising cable, the electromagnetic field produced during work can interfere with the external world, and when there is strong interference source in the external world, the operational environment of himself will be affected, thus affects the normal work of electric-heating belt., work in high temperature environments for a long time meanwhile, also the anticorrosion explosion-proof performance of anticorrosion explosion-proof automatic temperature-control electric heating belt be there are certain requirements.
Summary of the invention
In order to solve the technical problem existed in background technology, the present invention proposes a kind of anticorrosion explosion-proof automatic temperature-control electric heating belt, its structure is simple, capability of electromagnetic shielding good, use safety in high temperature environments.
The anticorrosion explosion-proof automatic temperature-control electric heating belt of one that the present invention proposes, comprises ptc material core body; Two wires are established in described ptc material core body; The outside coated one-sided metallic plastics composite band of ptc material core body, establish drainage thread in one-sided metallic plastics composite band, the plastic layer of described one-sided metallic plastics composite band is towards interior, and metal level is outside; The outside coated insulation layer of metallo-plastic composite band; The outside coated woven shield of insulating barrier; The outside coated restrictive coating of woven shield, the outer rim of described restrictive coating is provided with the fold texture being beneficial to heat radiation.
Preferably, described woven shield adopts fine wire and aramid fiber braiding to form.
Preferably, the conductive plastics that described ptc material core body adopts carbon to add is made.
Preferably, described one-sided metallic plastics composite bed adopts the plastic-aluminum combined layer of one side or single-side copper-plastic composite bed.
Preferably, described drainage thread adopts tinned copper wire to make.
Preferably, described wire adopts the stranded formation of one or more tinned wird.
Preferably, described insulating barrier adopts crosslinked polyethylene to make.
Preferably, described restrictive coating adopts flame-proof polyethylene to make.
In the present invention, one-sided metallic plastics composite bed is set between ptc material core body and insulating barrier.In electric-heating belt work, during low temperature, the resistance of ptc material core body is low, and heating efficiency is high, and the metal level of one-sided metallic plastics composite bed enhances the heat-conducting effect of core body; During high temperature, the resistance of ptc material core body raises, and heating efficiency reduces, and the metal level of one-sided metallic plastics composite bed plays the effect of screen, prevents external electromagnetic interference.Meanwhile, in one-sided metallic plastics composite bed, establish drainage thread, electric-heating belt can be made to have combined shielding effect, and be conducive to carrying out grounding, ensure that the fail safe of electric-heating belt work.Further, woven shield strengthens electric-heating belt electromagnetism interference performance at work further.In addition, be provided with the fold texture being conducive to dispelling the heat in restrictive coating outer rim, improve the radiation efficiency of electric-heating belt, and be convenient to the fixing laying of electric-heating belt.
In preferred version of the present invention, ptc material core body adopts carbon to add conductive plastics and makes, and improves electric heating property and stability, and increases the service life.Woven shield adopts fine wire and aramid fiber braiding to form, and while guarantee shield effectiveness, neither affects the pliability of electric-heating belt, turn improves the mechanical performance of electric-heating belt; Flame-proof polyethylene oversheath ensure that cable anticorrosion explosion-proof performance in use.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of anticorrosion explosion-proof automatic temperature-control electric heating belt that the present invention proposes.
Embodiment
As shown in Figure 1, Fig. 1 is the structural representation of a kind of anticorrosion explosion-proof automatic temperature-control electric heating belt that the present invention proposes.
With reference to Fig. 1, the anticorrosion explosion-proof automatic temperature-control electric heating belt of one that the present invention proposes, inside comprises ptc material core body 2.
The conductive plastics that ptc material core body 2 adopts carbon to add is made, and establishes two wires 1 in ptc material core body 2, and each wire is formed by 7 tin-coated copper wire strandings.This ptc material core body 2 adopts carbon to add conductive plastics.
At the plastic-aluminum combined layer 3 of the outside coated one side of ptc material core body 2, the plastic layer of the plastic-aluminum combined layer of one side 3 is towards interior, and aluminium lamination is towards outward, and it is as the protective layer of core body, can be moistureproof and prevent the corrosion of external chemicals, does not affect the bendability of electric-heating belt simultaneously.In addition, in the plastic-aluminum combined layer 3 of one side, establish the drainage thread 4 adopting tinned copper wire to make.
At the outside coated crosslinked polyetylene insulated layer 5 of one side plastic-aluminum combined layer 3, ensure ptc material core body 2 External Insulation.At the woven shield 6 that the outside coated aramid fiber of crosslinked polyetylene insulated layer 5 and finer wire weave, it, while guarantee shield effectiveness, neither affects the pliability of electric-heating belt, turn improves the mechanical performance of electric-heating belt.At the restrictive coating 7 that the outside coated flame-proof polyethylene of screen 6 is made, and the outer rim of restrictive coating 7 is provided with the fold texture being beneficial to heat radiation, ensure moisture-proof anticorrosive and the fire resistance of electric-heating belt, improve the heat efficiency of electric-heating belt, and this fold grain surface is convenient to, and electric-heating belt is fixing to be laid.
Ptc material core body 2 has positive temperature coefficient property, in the work of electric-heating belt, when the power is turned on, electric-heating belt is when low temperature, and core material meets cold events, resistance decreasing, heating power increases, and makes temperature increase, now, the aluminium lamination of the plastic-aluminum combined layer 3 of one side enhances the heat-conducting effect of core body, make core body dispel the heat evenly; When high temperature, core material expanded by heating, resistance becomes large, and heating power reduces, and temperature is reduced, and now, the aluminium lamination of the plastic-aluminum combined layer 3 of one side plays the effect of screen, prevents external electromagnetic interference; Thus reach the effect automatically regulating temperature.In addition, in electric-heating belt work, the setting of drainage thread 4, can make electric-heating belt have combined shielding effect, and is conducive to carrying out grounding, ensures the fail safe of electric-heating belt work.Further, the braiding structure of woven shield 6 and the fold texture of restrictive coating 7 outer rim, make electric-heating belt radiating effect better, improve the heat efficiency further.In addition, the effectiveness of woven shield 6 is excellent, and on electromagnetic wave shielding, play complementation with the thin aluminium lamination of one side aluminium-plastic tape 3, the shield effectiveness of electric-heating belt is better.
Preferably, ptc material core body 2 comprises following component according to mass fraction: 100 parts of polyvinyl resins, 1-50 part EVA, 10-40 part carbon black, 12-20 part carbon fiber, 1-5 part silicon dioxide, 1-5 part magnesium hydroxide, 0.1-0.3 part antioxidant, 0.1-2 part silane couplers; Particularly, 100 parts of polyvinyl resins, 1-50 part EVA, 10-40 part carbon black, 12-20 part carbon fiber, 1-5 part silicon dioxide, 1-5 part magnesium hydroxide, 0.1-0.3 part styrenated phenol, 0.1-2 part coupling agent M320.In the ptc material core body 2 adopting this conductive plastics, carbon black and carbon fiber be filled in base polyethylene, in use can not produce micro-crack, so that the deterioration of electric heating property, thus improve electric heating property stability, and increase the service life.The interpolation of carbon fiber simultaneously enhances PTC conductive plastics conductivity at low temperatures.
According to the anticorrosion explosion-proof automatic temperature-control electric heating belt of the present embodiment, after testing, when at 10 DEG C, nominal power is 10-25W/m, most high maintenance temperature≤70 DEG C, the highest bearing temperature is 205 DEG C, maximum surface temperature≤80 DEG C, and minimum installation temperature is-40 DEG C; Electric pressure is 0.3-15kV; Wire allows maximum operating temperature to be 205 DEG C for a long time; The minimum median of insulation tensile strength is 16.0Mpa; Bending radius during 20 DEG C of room temperatures is 25.4mm, and bending radius during-30 DEG C of low temperature is 35.0mm; At cable length 100m, during ambient temperature 75 DEG C, shake examination 1 minute with 2500VDC megger, measured insulation resistance (between wire and shielding) minimum value is 120M Ω; Starting current at 10 DEG C is every meter of 0.4A.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (7)
1. an anticorrosion explosion-proof automatic temperature-control electric heating belt, is characterized in that, comprises ptc material core body (2); Two wires (1) are established in described ptc material core body; The outside coated one-sided metallic plastics composite band (3) of ptc material core body (2), drainage thread (4) is established in one-sided metallic plastics composite bed (3), drainage thread (4) is arranged in one-sided metallic plastics composite bed (3), the plastic layer of described one-sided metallic plastics composite bed (3) is towards interior, and metal level is outside; The outside coated insulation layer (5) of metallo-plastic composite bed (3); The outside coated woven shield (6) of insulating barrier (5); The outside coated restrictive coating (7) of woven shield (6), the outer rim of described restrictive coating (7) is provided with the fold texture being beneficial to heat radiation;
The conductive plastics that described ptc material core body (2) adopts carbon to add is made; Described ptc material core body (2) comprises following component according to mass fraction: 100 parts of polyvinyl resins, 1-50 part EVA, 10-40 part carbon black, 12-20 part carbon fiber, 1-5 part silicon dioxide, 1-5 part magnesium hydroxide, 0.1-0.3 part antioxidant, 0.1-2 part silane couplers.
2. anticorrosion explosion-proof automatic temperature-control electric heating belt according to claim 1, is characterized in that, described woven shield (6) adopts fine wire and aramid fiber braiding to form.
3. anticorrosion explosion-proof automatic temperature-control electric heating belt according to claim 1, is characterized in that, described one-sided metallic plastics composite bed adopts the plastic-aluminum combined layer of one side or single-side copper-plastic composite bed.
4. anticorrosion explosion-proof automatic temperature-control electric heating belt according to claim 1, is characterized in that, described drainage thread (4) adopts tinned copper wire to make.
5. anticorrosion explosion-proof automatic temperature-control electric heating belt according to claim 1, is characterized in that, described wire (1) adopts the stranded formation of one or more tinned wird.
6. anticorrosion explosion-proof automatic temperature-control electric heating belt according to claim 1, is characterized in that, described insulating barrier (5) adopts crosslinked polyethylene to make.
7. anticorrosion explosion-proof automatic temperature-control electric heating belt according to claim 1, is characterized in that, described restrictive coating (7) adopts flame-proof polyethylene to make.
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| CN201410061040.7A CN103857080B (en) | 2014-02-23 | 2014-02-23 | A kind of anticorrosion explosion-proof automatic temperature-control electric heating belt |
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| CN201410061040.7A CN103857080B (en) | 2014-02-23 | 2014-02-23 | A kind of anticorrosion explosion-proof automatic temperature-control electric heating belt |
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| CN103857080B true CN103857080B (en) | 2016-03-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110401993A (en) * | 2019-07-25 | 2019-11-01 | 扬州利家科技有限公司 | A kind of electric-heating belt effectivelying prevent drain conditions |
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| RU2589553C1 (en) | 2015-03-12 | 2016-07-10 | Михаил Леонидович Струпинский | Heating cable based on skin effect, heating device and method of heating |
| CN106060988A (en) * | 2016-07-14 | 2016-10-26 | 泰州瑞侃电热电器有限公司 | Electrical tracing band |
| CN106455157A (en) * | 2016-08-30 | 2017-02-22 | 江苏鹏申高温线缆有限公司 | Low-temperature automatic temperature control electric heating belt and production technology thereof |
| CN107478898A (en) * | 2017-08-28 | 2017-12-15 | 曹长庆 | A kind of explosion-proof electric tracing intelligent detecting instrument and its detection method |
| CN108024391A (en) * | 2017-12-29 | 2018-05-11 | 安徽省宁国市天成电机有限公司 | A kind of carbon fiber heating tube |
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| CN102300348A (en) * | 2011-07-21 | 2011-12-28 | 江苏鑫扬线缆有限公司 | Waterproof, anti-acid-mist, anticorrosion and chemicals-resistant self-temperature-limiting tracer heating cable |
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| CN101004958B (en) * | 2006-09-30 | 2010-09-08 | 华为技术有限公司 | Communication cable |
| CN102682900A (en) * | 2011-03-16 | 2012-09-19 | 扬州华城电缆有限公司 | High-shielding composite energy-saving anti-freezing signal transmission cable |
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| CN102300348A (en) * | 2011-07-21 | 2011-12-28 | 江苏鑫扬线缆有限公司 | Waterproof, anti-acid-mist, anticorrosion and chemicals-resistant self-temperature-limiting tracer heating cable |
| CN202488789U (en) * | 2012-02-02 | 2012-10-10 | 西安盖沃热能科技有限公司 | Self-limiting temperature heat belt for PTC (Positive Temperature Coefficient) polymer conductive composite |
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| CN110401993A (en) * | 2019-07-25 | 2019-11-01 | 扬州利家科技有限公司 | A kind of electric-heating belt effectivelying prevent drain conditions |
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