CN201754630U - Environmental-protecting temperature self-limiting electric tracing band - Google Patents
Environmental-protecting temperature self-limiting electric tracing band Download PDFInfo
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- CN201754630U CN201754630U CN2010205044643U CN201020504464U CN201754630U CN 201754630 U CN201754630 U CN 201754630U CN 2010205044643 U CN2010205044643 U CN 2010205044643U CN 201020504464 U CN201020504464 U CN 201020504464U CN 201754630 U CN201754630 U CN 201754630U
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- tracing band
- electric tracing
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Abstract
The utility model discloses a environmental-protecting type temperature self-limiting electric tracing band, comprising two conductor wires, wherein heating material is edtrudingly wrapped out of the two conductor wires, an internal insulation protection layer, an aluminum-magnesium alloy braided shield layer and an external insulation sheath are coated out of the heating material in sequence. The electric tracing band of the utility model has the advantages of simple structure, convenient manufacture, good cable strength and environmental protection.
Description
Technical field:
The utility model relates to the accompanying-heat cable field, relates in particular to a kind of environmental protection temperature selflimiting electric tracing band.
Background technology:
Electric-heating belt is a kind of novel high-tech product, and it is since last century, entered application the seventies, and the self-limited type 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, keep technological temperature, heating highway, ramp, crossing, eaves and floor etc.The PTC macromolecular material that is distributing and playing heat effect between the self-limited type electric tracing inside, two conductive cores, its outside is made of macromolecule sheath, metallic shield net and macromolecule oversheath.When power connection, inner PTC macromolecular material expanded by heating, resistance become big, reduce heating power, and temperature is reduced; When temperature reduced, ptc material was met cold contraction, and resistance decreasing increases heating power, and temperature is risen, thereby reached the effect of automatic adjusting temperature.
Along with the raising of the mankind, there are not which as the modern times, to have so many people to recognize the importance of protection environment to environmental consciousness in epoch.And the number of concern for the environment and their degree of concern are also in continuous rising.Here it is, and present most of industries and industrial enterprise begin to consider to adopt new material, new technology, so that the harmonious more basic reason of their product and environment.At present, temperature selflimiting electric tracing band has multiple model and specification, and structure also has nothing in common with each other.But its basic structure still is the same, and it mainly is made up of two parallel plain conductors, extrusion molding semiconductive heater and the protective layer between two leads.Wherein the resistivity of the heater of most critical is to have positive temperature coefficient, i.e. " PTC " material, and parallel with one another, be called high molecule electric resistance rate PTC material, be a kind of composite polymer functional material.Its general employing polyolefin is a base-material, and carbon black is an electric conducting material, adds the formulated composite materials of additive such as antioxidant, sensitizer.Insulating barrier can be used macromolecular materials such as PVC, PE, PF, has insulating effect.Outermost restrictive coating is also made by macromolecular material, requiring fire-retardant occasion, need use flame retarded polymeric material.At present, temperature selflimiting electric tracing band many with polyvinyl chloride or other Halogen materials as its insulation and restrictive coating.Under the situation of breaking out of fire, these materials can discharge the dense smoke that contains hydrogen halide in a large number when burning, make the people can not find escape route, cause injures and deaths to such an extent as to suffocate.Simultaneously, hydrogen halide also can cause damage to peripheral facilities, Here it is we said " secondary disaster ".In addition, owing to reasons such as auxiliary agents, these materials also often contain heavy metal and poisonous and harmful goods and materials such as the harmful lead of human body and environment, chromium, bromides, also can bring injury dangerous to human and environment under normal operating position.Based on this background, people are more and more urgent to the requirement of environment-friendly type temperature selflimiting electric tracing band.
The environment-friendly type temperature selflimiting electric tracing band must satisfy following some: 1. do not adopt the material that contains the material that increases burden to environment; 2. use the material of reproducible utilization, at the concrete reason of present electric-heating belt industry generation environmental problem, the environment-friendly type temperature selflimiting electric tracing band should have following feature: do not contain halogen, do not produce poisonous and corrosive gas; Do not contain heavy metals such as lead, chromium, not contaminated soil and water source; The flame retardant type electric-heating belt does not reduce flame retardant rating, but when burning the amount of being fuming few; Behind the electric-heating belt end of life, its discarded object can regeneration, and environment is not worked the mischief equally in this process.We have carried out broad research for this reason, study from many-sides such as raw material, prescription, technologies, produce the environment-friendly type temperature selflimiting electric tracing band.
The utility model content:
The purpose of this invention is to provide a kind of environment-friendly type temperature selflimiting electric tracing band, with solving the not environmental issue of existing electric-heating belt in production and use.
The technical solution adopted in the utility model is as follows:
A kind of environmental protection temperature selflimiting electric tracing band comprises two leads, it is characterized in that: extrude exothermic material in the middle of described two lead outer wrapping, the centre extrudes exothermic material wrap insulate sheath successively outward, almag woven shield, insulation oversheath.
Described environmental protection temperature selflimiting electric tracing band is characterized in that: described insulation sheath, insulation oversheath are the irradiated crosslinking low-smoke and halogen-free flame retardant polyethylene.
Described environmental protection temperature selflimiting electric tracing band is characterized in that: described lead is zinc-plated round copper electric lead.
Compare with existing electric-heating belt, the utility model initiative is to use the flame-proof polyethylene environment-friendly materials of low smoke and zero halogen, nontoxic, heavy metal free on insulation sheath and oversheath; Cross-linking radiation is to improve at the flame-proof polyethylene resin, makes it reach better cross-linking effect.Owing to also there is not at present perfect electric-heating belt environmental-protecting performance evaluation criterion,, and, formulated the evaluation criterion that a cover reasonably gears to actual circumstances according to the actual conditions of the utility model product with reference to domestic part cable standard and foreign standard.Testing result is as follows:
1. low-smoke: general electric-heating belt during burning can produce a large amount of dense smoke, and the be fuming amount of this environment-friendly type electric-heating belt can be with burning the time is reduced to a minimum.Measure by GB/T17651 " smoke density that cable or optical cable burn is under given conditions measured ", its light transmittance is greater than 80%, far above the standard-required that is not less than 60%.
2. toxic gas such as non-corrosiveness halogen gas is overflowed: general electric-heating belt produces at a large amount of poisonous hydrogen halides of the simultaneous of being fuming during burning, and the environment-friendly type electric-heating belt does not produce any toxic gas, because its halogen composition.By NES713 " mensuration of sample material combustion product poison exponent ", its poison exponent is less than 5.
3. non-corrosiveness gas produces: general electric-heating belt can produce a large amount of corrosive gass such as hydrogen halides when burning, and environment-friendly type electric-heating belt non-corrosiveness gas produces, by GB/T17650 " discharging the test method of gas when taking from the material combustion of cable or optical cable ", the fire proofing corrosivity index p H value of measuring its combustion product is not less than 4.3, conductivity is not more than 10 μ m/mm, and provable non-corrosiveness material produces.
4. heavy metal and poisonous and harmful substance content all are lower than the requirement of ROHS instruction.Wherein: chromium content is 80-85ppm; It is 800-850ppm that mercury, lead, 6 valency chromium, stupid, the poly-bromine of poly-bromine connection join stupid ether content.ROHS instruction is not more than 100 and 1000ppm respectively.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Embodiment:
A kind of environment-friendly type temperature selflimiting electric tracing band, comprise two zinc-plated round copper electric leads 1, two zinc-plated round copper electric lead 1 outer exothermic materials 2 that extrude, extrude the exothermic material 2 outer irradiated crosslinking low-smoke and halogen-free flame retardant polyethylene insulation sheaths 3, almag woven shield 4, irradiated crosslinking low-smoke and halogen-free flame retardant polyethylene insulation oversheath 5 of wrapping up successively.
Claims (3)
1. an environmental protection temperature selflimiting electric tracing band comprises two leads, it is characterized in that: extrude exothermic material in the middle of described two lead outer wrapping, the centre extrudes exothermic material wrap insulate sheath successively outward, almag woven shield, insulation oversheath.
2. environmental protection temperature selflimiting electric tracing band according to claim 1 is characterized in that: described insulation sheath, insulation oversheath are the irradiated crosslinking low-smoke and halogen-free flame retardant polyethylene.
3. environmental protection temperature selflimiting electric tracing band according to claim 1 is characterized in that: described lead is zinc-plated round copper electric lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205044643U CN201754630U (en) | 2010-08-18 | 2010-08-18 | Environmental-protecting temperature self-limiting electric tracing band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205044643U CN201754630U (en) | 2010-08-18 | 2010-08-18 | Environmental-protecting temperature self-limiting electric tracing band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201754630U true CN201754630U (en) | 2011-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205044643U Expired - Fee Related CN201754630U (en) | 2010-08-18 | 2010-08-18 | Environmental-protecting temperature self-limiting electric tracing band |
Country Status (1)
| Country | Link |
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| CN (1) | CN201754630U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103634956A (en) * | 2013-09-05 | 2014-03-12 | 史大涌 | Built-in heat tracing pipe |
| CN106332334A (en) * | 2016-09-08 | 2017-01-11 | 芜湖市旭辉电工新材料有限责任公司 | Self-regulating electric tracing band specially for fire fighting |
| RU2684408C1 (en) * | 2017-05-31 | 2019-04-09 | Тайчжоу Руикан Электрик Апплиансе Со.,Лтд. | Parallel carbon fiber electric heating tape |
| US10966290B2 (en) | 2017-02-01 | 2021-03-30 | Nvent Services Gmbh | Low smoke, zero halogen self-regulating heating cable |
-
2010
- 2010-08-18 CN CN2010205044643U patent/CN201754630U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103634956A (en) * | 2013-09-05 | 2014-03-12 | 史大涌 | Built-in heat tracing pipe |
| CN106332334A (en) * | 2016-09-08 | 2017-01-11 | 芜湖市旭辉电工新材料有限责任公司 | Self-regulating electric tracing band specially for fire fighting |
| US10966290B2 (en) | 2017-02-01 | 2021-03-30 | Nvent Services Gmbh | Low smoke, zero halogen self-regulating heating cable |
| US11871486B2 (en) | 2017-02-01 | 2024-01-09 | Nvent Services Gmbh | Low smoke, zero halogen self-regulating heating cable |
| US11956865B2 (en) | 2017-02-01 | 2024-04-09 | Nvent Services Gmbh | Low smoke, zero halogen self-regulating heating cable |
| RU2684408C1 (en) * | 2017-05-31 | 2019-04-09 | Тайчжоу Руикан Электрик Апплиансе Со.,Лтд. | Parallel carbon fiber electric heating tape |
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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 |
Granted publication date: 20110302 Termination date: 20150818 |
|
| EXPY | Termination of patent right or utility model |