CN202696930U - Low-temperature, tensile-type and self-regulating heating cable - Google Patents
Low-temperature, tensile-type and self-regulating heating cable Download PDFInfo
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- CN202696930U CN202696930U CN 201220219099 CN201220219099U CN202696930U CN 202696930 U CN202696930 U CN 202696930U CN 201220219099 CN201220219099 CN 201220219099 CN 201220219099 U CN201220219099 U CN 201220219099U CN 202696930 U CN202696930 U CN 202696930U
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Abstract
The utility model discloses a low-temperature, tensile type and self-regulating heating cable. The cable includes two power buses arranged in parallel, wherein each power bus is formed by mutually twisting a plurality of silver-plated copper wires to form a beam, and the diameter of each silver-plated copper wire is not more than 0.25 mm; the two power buses is wholly wrapped by a conductive layer formed by extruding conductive plastic; the conductive layer is sequentially wrapped with an insulating layer and a shielding layer; the shielding layer is formed by weaving tinned flat copper wires; the coverage rate of the shielding layer to the insulating layer is not less than 85 percent; a sheathing layer is wrapped outside the shielding layer; and two opposed galvanized tensile belts are arranged in the sheathing layer, as the two ends of each galvanized tensile belt are bent, and the galvanized tensile belts are arcuate. The cable provided by the utility model has a good conductive effect and a shielding performance, as two opposite galvanized tensile belts are placed inside the sheathing layer of the cable, the tensile strength of the cable is improved, the structure is also more compact at the same time, and accordingly, the cable power buses can be well protected.
Description
Technical field:
The utility model relates to the heating cable field, relates in particular to a kind of low temperature tensile type self controlled heating cable.
Background technology:
Self controlled heating cable is widely used in the tracing thermal-insulating, anti-freezing, antifreeze etc. of pipeline, the storage tank of the industrial enterprises such as oil, chemical industry, iron and steel, electric power; This cable is suitable for the pipeline tracing with general area, hazardous area and corrosion region.
Self controlled heating cable is again automatic temperature-controlled heat tracing cable, makes heater with a kind of conducting polymer composite, and its heating power can automatically be adjusted, control self each point temperature and keep constant temperature.Specifically: self controlled heating cable is to be power source bus by two parallel copper stranded conductors, and the centre evenly is crowded with conducting polymer composite and is the heating core material.When the bus plugged, the electric current cross-current is crossed the heating core material between two buses, and core material is heated up, and its resistance thereupon automatic torque-increasing adds.When the core material temperature was raised to certain value, resistance was greatly to the degree of almost blocking electric current, and the core material temperature no longer rises.Meanwhile, core material conducts heat to being heated system by sheath, drop in temperature, and when drop in temperature arrived certain value, resistance reduced gradually, and the core material heating temp rises.So move in circles, just can keep being heated the system steady temperature.
Temperature during self controlled heating cable energy volitional check heating, and can be with the automatic regulation output power of the variations in temperature that is heated system, therefore it has changed when using traditional permanent power heater and need be heated the heating means that system is deacclimatized heater, accomplish to allow heater deacclimatize the system of being heated, allow repeatedly juxtaposition to use the phenomenon that heat spot can not occur and burn.
The structure defective tightness of original heating cable, the mechanical performances such as stretch-proof are comparatively weak, thereby practical application effect is relatively poor.
The utility model content:
The purpose of this utility model provides a kind of low temperature tensile type self controlled heating cable, has solved effectively that the construction of cable is not compact, the poor problem that affects practical effect of stretch-proof performance.
The technical solution of the utility model is as follows:
Low temperature tensile type self controlled heating cable, comprise two power source buss that are arranged in parallel, it is characterized in that: described two power source buss consist of by the mutual stranded bunchy of several silver-gilt copper wires, filament diameter is not more than 0.25mm, described two power source buss outside integral body is enclosed with the conductive layer that conductive plastics extrudes formation, the conductive layer outside is enclosed with insulating barrier successively, screen, screen adopts zinc-plated flat copper silk braiding to consist of, screen is not less than 85% to the coverage rate of insulating barrier, the screen outside is enclosed with restrictive coating, be provided with two relative zinc-plated tension bands in the restrictive coating, zinc-plated tension band bending two ends is curved.
Described low temperature tensile type self controlled heating cable is characterized in that: described insulating barrier adopts the fluoroplastics extrusion moulding.
The utility model has the advantages that:
The utlity model has good conductive effect and shielding properties, place two relative zinc-plated tension bands in the restrictive coating of cable, structure is also comparatively compact when having improved the tensile strength of cable, can well protect the cable power source bus.
Description of drawings:
Fig. 1 is structural representation of the present utility model.
Embodiment:
Referring to Fig. 1:
Low temperature tensile type self controlled heating cable, comprise two power source buss 1 that are arranged in parallel, two power source buss 1 consist of by the mutual stranded bunchy of several silver-gilt copper wires, filament diameter is not more than 0.25mm, two power source bus 1 outside integral body are enclosed with the conductive layer 2 that conductive plastics extrudes formation, conductive layer 2 outsides are enclosed with insulating barrier 3 successively, screen 4, screen 4 adopts zinc-plated flat copper silk braiding to consist of, the coverage rate of 4 pairs of insulating barriers of screen is not less than 85%, screen 4 outsides are enclosed with restrictive coating 5, be provided with two relative zinc-plated tension bands 6 in the restrictive coating 5, zinc-plated tension band 6 bending two ends are curved.
Claims (2)
1. low temperature tensile type self controlled heating cable, comprise two power source buss that are arranged in parallel, it is characterized in that: described two power source buss consist of by the mutual stranded bunchy of several silver-gilt copper wires, filament diameter is not more than 0.25mm, described two power source buss outside integral body is enclosed with the conductive layer that conductive plastics extrudes formation, the conductive layer outside is enclosed with insulating barrier successively, screen, screen adopts zinc-plated flat copper silk braiding to consist of, screen is not less than 85% to the coverage rate of insulating barrier, the screen outside is enclosed with restrictive coating, be provided with two relative zinc-plated tension bands in the restrictive coating, zinc-plated tension band bending two ends is curved.
2. low temperature according to claim 1 tensile type self controlled heating cable is characterized in that: described insulating barrier employing fluoroplastics extrusion moulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220219099 CN202696930U (en) | 2012-05-16 | 2012-05-16 | Low-temperature, tensile-type and self-regulating heating cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220219099 CN202696930U (en) | 2012-05-16 | 2012-05-16 | Low-temperature, tensile-type and self-regulating heating cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202696930U true CN202696930U (en) | 2013-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220219099 Expired - Fee Related CN202696930U (en) | 2012-05-16 | 2012-05-16 | Low-temperature, tensile-type and self-regulating heating cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202696930U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107613593A (en) * | 2017-10-31 | 2018-01-19 | 山东华宁电伴热科技有限公司 | A kind of self temperature control heating tape |
-
2012
- 2012-05-16 CN CN 201220219099 patent/CN202696930U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107613593A (en) * | 2017-10-31 | 2018-01-19 | 山东华宁电伴热科技有限公司 | A kind of self temperature control heating tape |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20130516 |