CN103857080A - Anti-corrosion and anti-explosion self-temperature-control electric tracing band - Google Patents
Anti-corrosion and anti-explosion self-temperature-control electric tracing band Download PDFInfo
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- CN103857080A CN103857080A CN201410061040.7A CN201410061040A CN103857080A CN 103857080 A CN103857080 A CN 103857080A CN 201410061040 A CN201410061040 A CN 201410061040A CN 103857080 A CN103857080 A CN 103857080A
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Abstract
The invention discloses an anti-corrosion and anti-explosion self-temperature-control electric tracing band. The anti-corrosion and anti-explosion self-temperature-control electric tracing band comprises a PTC material core which is internally provided with two wires, the PTC material core is wrapped by a single-face metal and plastic composite belt which is internally provided with a drainage wire, the plastic layer of the single-face metal and plastic composite belt faces inwards, and the metal layer of the single-face metal and plastic composite belt faces outwards. The metal and plastic composite belt is wrapped by an insulating layer, the insulating layer is wrapped by a braided shield layer, the braided shield layer is wrapped by a restrictive coating, and the periphery of the restrictive coating is provided with a plicated texture. The anti-corrosion and anti-explosion self-temperature-control electric tracing band is simple in structure and good in electromagnetic shielding performance and can be used safely under the high-temperature environment.
Description
Technical field
The present invention relates to electric-heating belt technical field, relate in particular 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 that liquid object is carried in pipeline and the anti-freezing and heat-insulating of tank body, maintain technological temperature, heating highway, ramp, crossing, eaves and floor etc.Anticorrosion explosion-proof automatic temperature-control electric heating belt inside, is distributing between two conductive cores and is playing positive temperature coefficient (PTC) material of heat effect, and its outside is made up of macromolecule sheath, metallic shield net and macromolecule oversheath.In the time of power connection, inner ptc material expanded by heating, it is large that resistance becomes, and reduces heating power, and temperature is reduced; In the time that temperature reduces, ptc material is met cold contraction, and resistance decreasing increases heating power, makes temperature rise, thereby reaches the effect of automatic adjusting temperature.
Because electric-heating belt is certainly as energising cable, the electromagnetic field producing when work can interfere with the external world, and in the time that there is strong interference source in the external world, the operational environment of himself will be affected, thereby affects the normal work of electric-heating belt., under hot environment, work 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 existing in background technology, the present invention proposes a kind of anticorrosion explosion-proof automatic temperature-control electric heating belt, it is simple in structure, capability of electromagnetic shielding good, under hot environment, use safety.
The anticorrosion explosion-proof automatic temperature-control electric heating belt of one that the present invention proposes, comprises ptc material core body; In described ptc material core body, establish two wires; The outside coated one side metallo-plastic composite band of ptc material core body, establishes drainage thread in one side metallo-plastic composite band, and the plastic layer of described one side metallo-plastic 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 that is 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 side metallo-plastic 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 side metallo-plastic composite bed is set between ptc material core body and insulating barrier.In electric-heating belt work, when low temperature, the resistance of ptc material core body is low, and heating efficiency is high, and the metal level of one side metallo-plastic composite bed has strengthened the heat-conducting effect of core body; When high temperature, the resistance of ptc material core body raises, and heating efficiency reduces, and the metal level of one side metallo-plastic composite bed plays the effect of screen, prevents external electromagnetic interference.Meanwhile, in one side metallo-plastic composite bed, establish drainage thread, can make electric-heating belt there is combined shielding effect, and be conducive to carry out grounding, ensured the fail safe of electric-heating belt work.And woven shield further strengthens electric-heating belt anti-electromagnetic interference performance at work.In addition, be provided with the fold texture that is conducive to heat radiation in restrictive coating outer rim, improved 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 has improved electric heating property and stability, and has increased the service life.Woven shield adopts fine wire and aramid fiber braiding to form, and in ensureing shield effectiveness, neither affects the pliability of electric-heating belt, has improved again the mechanical performance of electric-heating belt; Flame-proof polyethylene oversheath has ensured cable anticorrosion explosion-proof performance in use.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of anticorrosion explosion-proof automatic temperature-control electric heating belt of proposing of the present invention.
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 of proposing of the present invention.
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 3 of one side is towards interior, aluminium lamination towards outside, it is as the protective layer of core body, can be moistureproof and prevent the corrosion of outside chemical product, do 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 that adopts tinned copper wire to make.
At the outside coated crosslinked polyetylene insulated layer 5 of the plastic-aluminum combined layer 3 of one side, ensure ptc material core body 2 External Insulations.Weave at the outside coated aramid fiber of crosslinked polyetylene insulated layer 5 and finer wire the woven shield 6 forming, it neither affects the pliability of electric-heating belt in ensureing shield effectiveness, has improved again the mechanical performance of electric-heating belt.The restrictive coating 7 of making at the outside coated flame-proof polyethylene of screen 6, and the outer rim of restrictive coating 7 is provided with the fold texture that is beneficial to heat radiation, ensure moisture-proof anticorrosive and the fire resistance of electric-heating belt, improved 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, in the time of power connection, electric-heating belt is in the time of low temperature, and core material is met cold contraction, resistance decreasing, heating power increases, and makes temperature rise, now, the aluminium lamination of the plastic-aluminum combined layer 3 of one side has strengthened the heat-conducting effect of core body, makes core body heat radiation more even; In the time of high temperature, core material expanded by heating, it is large that resistance becomes, 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; Thereby reach the effect of automatic adjusting 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 carry out grounding, ensures the fail safe of electric-heating belt work.And the fold texture of the braiding structure of woven shield 6 and restrictive coating 7 outer rims, makes electric-heating belt radiating effect better, further improves the heat efficiency.In addition, the effectiveness excellence of woven shield 6 plays complementation with the thin aluminium lamination of one side aluminium-plastic tape 3 on electromagnetic wave shielding, and 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 coupler; 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 of this conductive plastics of employing, being filled in polyethylene matrix of carbon black and carbon fiber, can in use not produce micro-crack, so that the deterioration of electric heating property, thereby has improved electric heating property stability, and increases the service life.The interpolation of carbon fiber has simultaneously strengthened 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, the in the situation that at 10 DEG C, nominal power being 10-25W/m, high maintenance temperature≤70 DEG C, the highest bearing temperature is 205 DEG C, maximum surface temperature≤80 DEG C, minimum installation temperature is-40 DEG C; Electric pressure is 0.3-15kV; It is 205 DEG C that wire allows maximum operating temperature for a long time; The minimum median of insulation tensile strength is 16.0Mpa; Bending radius when 20 DEG C of room temperatures is 25.4mm, and bending radius when-30 DEG C of low temperature is 35.0mm; At cable length 100m, when 75 DEG C of ambient temperatures, shake examination 1 minute with 2500VDC megger, measured insulation resistance (wire with shield between) minimum value is 120M Ω; Starting current at 10 DEG C is every meter of 0.4A.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.
Claims (8)
1. an anticorrosion explosion-proof automatic temperature-control electric heating belt, is characterized in that, comprises ptc material core body (2); In described ptc material core body, establish two wires (1); The outside coated one side metallo-plastic composite band (3) of ptc material core body (2), establishes drainage thread (4) in one side metallo-plastic composite bed (3), the plastic layer of described one side metallo-plastic composite bed (3) is towards interior, and metal level is outside; The outside coated insulation layer of metallo-plastic composite bed (3) (5); 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 that is beneficial to heat radiation.
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, the conductive plastics that described ptc material core body (2) adopts carbon to add is made.
4. anticorrosion explosion-proof automatic temperature-control electric heating belt according to claim 1, is characterized in that, described one side metallo-plastic composite bed adopts the plastic-aluminum combined layer of one side or single-side copper-plastic composite bed.
5. 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.
6. 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.
7. 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.
8. 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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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Families Citing this family (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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| 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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2014
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| CN101004958A (en) * | 2006-09-30 | 2007-07-25 | 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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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2589553C1 (en) * | 2015-03-12 | 2016-07-10 | Михаил Леонидович Струпинский | Heating cable based on skin effect, heating device and method of heating |
| US10952286B2 (en) | 2015-03-12 | 2021-03-16 | Mikhail Leonidovich Strupinskiy | Skin-effect based heating cable, heating unit and method |
| 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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| CN103857080B (en) | 2016-03-02 |
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