CN203896346U - Temperature-controlled heating cable - Google Patents
Temperature-controlled heating cable Download PDFInfo
- Publication number
- CN203896346U CN203896346U CN201420288476.5U CN201420288476U CN203896346U CN 203896346 U CN203896346 U CN 203896346U CN 201420288476 U CN201420288476 U CN 201420288476U CN 203896346 U CN203896346 U CN 203896346U
- Authority
- CN
- China
- Prior art keywords
- heating cable
- layer
- temperature
- sheath
- cable
- 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
Links
- 238000010438 heat treatment Methods 0.000 title abstract description 8
- 239000004033 plastic Substances 0.000 claims abstract description 11
- 229920003023 plastic Polymers 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000000903 blocking effect Effects 0.000 claims abstract description 8
- 229920006267 polyester film Polymers 0.000 claims abstract description 8
- 238000005485 electric heating Methods 0.000 claims description 9
- 230000004888 barrier function Effects 0.000 claims description 4
- 229920006231 aramid fiber Polymers 0.000 claims description 3
- 239000004020 conductor Substances 0.000 abstract 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 241000505673 Scintilla Species 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 230000002528 anti-freeze Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model relates to a temperature-controlled heating cable. The utility model aims to provide the cable which has good waterproof performance and has an advantage of simple structure. The technical solution is characterized in that: the temperature-controlled heating cable comprises two parallel conductors, a conducive plastic layer, an insulating layer, a shielding layer and a sheath, wherein the conductive plastic layer, the insulating layer, the shielding layer and the sheath are successively coated outside the conductors from inside to outside; a water blocking layer is configured between the shielding layer and the sheath; and a polyester film coats the external surface of the shielding layer.
Description
Technical field
The utility model relates to a kind of heating element, specifically can control the accompanying-heat cable of temperature.
Background technology
Electric tracing product (electric tracing cable) came out since the more than ten years, the tracing thermal-insulating, antifreeze and anti-condensation that has been widely used in pipeline, the pump housing, valve, groove pond and the tank body volume of the industries such as oil, chemical industry, electric power, medicine, machinery, food, boats and ships is that liquid-transport pipe-line, liquid storage medium tank body maintain most advanced, the effective method of technological temperature.Temp control electric heating cable consists of conductive plastics and 2 wires that are parallel to each other and insulating barrier, metallic shield net, anticorrosion overcoat conventionally; Wherein by plastics, adding the conductive plastics that processes of conduction carbon granules is heating core.Its working mechanism is: when accompanying-heat cable environment temperature is lower, conductive plastics produces scintilla and shrinks, and carbon granules is connected to form circuit passes through electric current, and accompanying-heat cable just starts heating; And temperature is when higher, conductive plastics produces scintilla and expands, and carbon granules separates gradually, causes circuit to interrupt, and resistance rises, and companion's hot line reduces power stage automatically, and caloric value just reduces.When environment temperature turns cold, plastics return to again scintilla contraction state, the corresponding formation circuit that couples together of carbon granules, and companion's hot line heating power is automatic-ascending again.Because whole temperature controlled processes has been regulated automatically by material itself, its control temperature can be not too high can be not too low yet.Therefore the superperformance that electric tracing has is that other tracing systems are incomparable; Its market prospects are wide.
But current electric tracing cable is gone back Shortcomings in water resistance, make its range of application still be subject to certain limitation.
Utility model content
The purpose of this utility model is the deficiency overcoming in above-mentioned background technology, and a kind of improvement of temp control electric heating cable is provided, and this cable should have good water resistance, and has feature simple in structure.
The technical solution of the utility model is: temp control electric heating cable, comprises 2 wires that are parallel to each other and the conductive plastics layer, insulating barrier, screen and the sheath that are coated on successively from inside to outside wire outside; It is characterized in that: between described screen and sheath, also configure a water blocking layer, screen outer surface is a coated polyester film also.
Described polyester film thickness is 0.01-0.03mm.
Described water blocking layer is aramid fiber belt.
Described wire is 7 stranded cores.
The beneficial effects of the utility model are:
The utility model has increased water blocking layer and polyester film on the basis of existing structure, thereby has significantly strengthened the water resistance of cable, makes product under hygrothermal environment, still have good protection against the tide and insulation property, and range of application is significantly expanded; Add and adopt stranded core, the mechanical strength of cable improves and softness is more excellent, also has long service life, feature simple in structure.
Accompanying drawing explanation
Fig. 1 is cross-sectional structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with Figure of description, the utility model is described in further detail, but the utility model is not limited to following examples.
In temp control electric heating cable as shown in Figure 1,2 wires that are parallel to each other 1 adopt respectively 7 stranded cores (to recommend 7 Х 1.5mm
2), wire outside is being coated conductive plastics layer 5 (PTC layer), insulating barrier 2 (being generally PE or polyolefin), screen 3 (being generally wire sheathing) and sheath 6 (being generally PE or polyolefin) from inside to outside successively; The roughly the same existing accompanying-heat cable of above structure.
The utility model has configured a water blocking layer 4 between described screen and sheath, and is also coated a polyester film (omit and do not show in figure) at screen outer surface.
Described polyester film thickness is recommended as 0.01-0.03mm, also can determine separately as required.
Described water blocking layer is aramid fiber belt.
The equal buyable of the above all material obtains.
The key technical indexes of the present utility model:
1) temperature range: 130 ± 5 ℃ of maximum operating temperatures, 100 ℃ of the highest Exposure Temperature;
2) construction temperature: minimum-40 ℃;
3) thermal stability: circulate back and forth between 10 ℃ to 149 ℃ after 300 times again, electric cable heating amount maintains more than 90%;
4) bending radius: be 25.4 ㎜ in the time of 20 ℃;
-30 ℃ of formulas are 35 ㎜;
5, insulation resistance: cable length 100 ㎜, during 75 ℃, constant temperature waters, test insulation resistance minimum value 20M Ω.
Claims (4)
1. temp control electric heating cable, the conductive plastics layer (5), insulating barrier (2), screen (3) and the sheath (6) that comprise 2 wires that are parallel to each other (1) and be coated on successively from inside to outside wire outside; It is characterized in that: between described screen and sheath, also configure a water blocking layer () 4), screen outer surface is a coated polyester film also.
2. temp control electric heating cable according to claim 1, is characterized in that: described polyester film thickness is 0.01-0.03mm.
3. temp control electric heating cable according to claim 2, is characterized in that: described water blocking layer is aramid fiber belt.
4. according to the temp control electric heating cable described in claim 2 or 3, it is characterized in that: described wire is 7 stranded cores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420288476.5U CN203896346U (en) | 2014-05-30 | 2014-05-30 | Temperature-controlled heating cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420288476.5U CN203896346U (en) | 2014-05-30 | 2014-05-30 | Temperature-controlled heating cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203896346U true CN203896346U (en) | 2014-10-22 |
Family
ID=51722698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420288476.5U Expired - Fee Related CN203896346U (en) | 2014-05-30 | 2014-05-30 | Temperature-controlled heating cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203896346U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
-
2014
- 2014-05-30 CN CN201420288476.5U patent/CN203896346U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 | ||
| 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: 20141022 |