CN201667726U - Single-core nichrome stranded wire PFA insulation sleeve and PVC strengthening sleeve electrical heating belt - Google Patents
Single-core nichrome stranded wire PFA insulation sleeve and PVC strengthening sleeve electrical heating belt Download PDFInfo
- Publication number
- CN201667726U CN201667726U CN2010201636967U CN201020163696U CN201667726U CN 201667726 U CN201667726 U CN 201667726U CN 2010201636967 U CN2010201636967 U CN 2010201636967U CN 201020163696 U CN201020163696 U CN 201020163696U CN 201667726 U CN201667726 U CN 201667726U
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- Prior art keywords
- sleeve
- stranded wire
- sheath
- electrical heating
- core
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- Expired - Fee Related
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- 229910001120 nichrome Inorganic materials 0.000 title claims abstract description 17
- 238000009413 insulation Methods 0.000 title claims abstract description 13
- 238000010438 heat treatment Methods 0.000 title abstract description 14
- 238000005728 strengthening Methods 0.000 title abstract 4
- 239000000463 material Substances 0.000 claims abstract description 7
- 229920001577 copolymer Polymers 0.000 claims abstract description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 5
- 230000004888 barrier function Effects 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000004321 preservation Methods 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000005413 snowmelt Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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- Surface Heating Bodies (AREA)
Abstract
The utility model relates to a single-core nichrome stranded wire PFA insulation sleeve and PVC strengthening sleeve electrical heating belt which is mainly used for heat preservation and heating of pipelines and containers in petrochemical industry, fire fighting, steel, electric power and the like. The electrical heating belt is formed by the sequentially composition of a core wire (1), a first insulating layer (2), a second insulating layer (3), an inner sleeve (4), a shielding layer (5), an outer sleeve (6) and a strengthening sleeve (7) from inside to outside; the single-core nichrome stranded wire is adopted as the core wire (1); the first insulating layer (2), the second insulating layer (3), the inner sleeve (4) and the outer sleeve (6) are made of tetrafluoroethylene-perfluor ether copolymer; and the strengthening sleeve (7) is made of PVC material. The electrical heating belt can be bent repeatedly in installation, thus greatly prolonging the service life.
Description
(1) technical field
The utility model relates to a kind of permanent power ribbon heater.Be mainly used in the insulation and the heating of pipelines such as petrochemical industry, fire-fighting, iron and steel, electric power, container.The ground that also is applicable to solar pipe, the civil buildings snow melt etc. of warming up.Belong to the electrothermal device technical field.
(2) background technology
Before the utility model was made, conventional permanent power ribbon heater was a kind of permanent power ribbon heater in parallel.Its structure as depicted in figs. 1 and 2.Its operation principle: power source bus is two parallel insulated copper wires, twines heating wire on the inner sheath insulating barrier, and heating wire is connected with power source bus at a certain distance, forms continuous parallel resistance.After the power source bus energising, each parallel resistance heating, thereby form a continuous heating tape.Its characteristics: the caloric value of ribbon heater unit length is constant, and the ribbon heater of use is long more, and the power of output is big more.The application scenario: permanent power ribbon heater in parallel generally is used for the tracing thermal-insulating of little pipeline or pipe network system short tube line.This perseverance power ribbon heater in parallel existing problems: permanent power ribbon heater in parallel is to be welded on copper busbar as heater by the thinner nichrome wire in line footpath because of product, should not repeat bending when install the ribbon heater, and useful life is short partially.
(3) summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, can repeat bending when providing a kind of ribbon heater to install, the single-core nichrome stranded wire PFA insulation that useful life is long and the permanent power series electrical of the sheath short distance torrid zone.
The purpose of this utility model is achieved in that a kind of single-core nichrome stranded wire PFA insulation and sheath and PVC reinforced sheath ribbon heater, it is characterized in that described ribbon heater from interior from outside successively by heart yearn, first insulating barrier, second insulating barrier, inner sheath, screen, oversheath and reinforced sheath totally seven layers be composited, described heart yearn adopts single-core nichrome stranded wire, first insulating barrier, second insulating barrier, inner sheath and jacket material adopt tetrafluoroethene-perfluor ether copolymer, and the reinforced sheath material adopts PVC.
Operation principle:
PFA insulation of the utility model single-core nichrome stranded wire and sheath and PVC reinforced sheath ribbon heater are a kind of electric-heating belts of being made heater (heart yearn), the insulation of PFA (tetrafluoroethene-perfluor ether copolymer) do and sheath by nichrome stranded wire, heart yearn two ends, ribbon heater are inserted power supply phase line and zero line respectively, form a single-phase heating circuit.Because the resistance of heart yearn unit length and the electric current that passes through are all constant, so whole ribbon heater generates heat evenly from beginning to end, power output is constant.
The beneficial effects of the utility model are:
Single-core nichrome stranded wire PFA insulation has power output and the temperature resistant grade identical with permanent power ribbon heater in parallel with sheath and PVC reinforced sheath ribbon heater, but, mode of heating generates heat because of being become by heart yearn by the electrothermal wire heating, avoided ribbon heater in parallel in the past owing to bend repeatedly and the aging fault that causes of pad, can repeat bending when install the ribbon heater, prolong useful life greatly.200 ℃ of the high-temperature resistants of PFA insulating barrier and sheath ribbon heater product, 120 ℃ of the high maintenance temperature of medium.
(4) description of drawings
Fig. 1 is permanent power ribbon heater in parallel Facad structure schematic diagram in the past.
Fig. 2 is the A-A cut-away view of Fig. 1.
Fig. 3 is the PFA insulation of the utility model single-core nichrome stranded wire and sheath and PVC reinforced sheath ribbon heater Facad structure schematic diagram.
Fig. 4 is the B-B cut-away view of Fig. 3.
Reference numeral among the figure:
(5) embodiment
Referring to Fig. 3～4, Fig. 3 is the PFA insulation of the utility model single-core nichrome stranded wire and sheath and PVC reinforced sheath ribbon heater Facad structure schematic diagram.Fig. 4 is the B-B cut-away view of Fig. 3.By Fig. 3 and Fig. 4 as can be seen, PFA insulation of the utility model single-core nichrome stranded wire and sheath and PVC reinforced sheath ribbon heater, from interior from outside successively by heart yearn 1, first insulating barrier 2, second insulating barrier 3, inner sheath 4, screen 5, oversheath 6 and reinforced sheath 7 totally seven layers be composited.Described heart yearn 1 adopts single-core nichrome stranded wire; First insulating barrier 2, second insulating barrier 3, inner sheath 4 and oversheath 6 materials adopt PFA (tetrafluoroethene-perfluor ether copolymer); Reinforced sheath 7 materials adopt PVC.
Claims (1)
1. single-core nichrome stranded wire PFA insulation and sheath and PVC reinforced sheath ribbon heater, it is characterized in that described ribbon heater from interior from outside successively by heart yearn (1), first insulating barrier (2), second insulating barrier (3), inner sheath (4), screen (5), oversheath (6) and reinforced sheath (7) totally seven layers be composited, described heart yearn (1) adopts single-core nichrome stranded wire, first insulating barrier (2), second insulating barrier (3), inner sheath (4) and oversheath (6) material adopt tetrafluoroethene-perfluor ether copolymer, and reinforced sheath (7) material adopts PVC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201636967U CN201667726U (en) | 2010-04-12 | 2010-04-12 | Single-core nichrome stranded wire PFA insulation sleeve and PVC strengthening sleeve electrical heating belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201636967U CN201667726U (en) | 2010-04-12 | 2010-04-12 | Single-core nichrome stranded wire PFA insulation sleeve and PVC strengthening sleeve electrical heating belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201667726U true CN201667726U (en) | 2010-12-08 |
Family
ID=43268688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201636967U Expired - Fee Related CN201667726U (en) | 2010-04-12 | 2010-04-12 | Single-core nichrome stranded wire PFA insulation sleeve and PVC strengthening sleeve electrical heating belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201667726U (en) |
-
2010
- 2010-04-12 CN CN2010201636967U patent/CN201667726U/en not_active Expired - Fee Related
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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: 20101208 Termination date: 20150412 |
|
| EXPY | Termination of patent right or utility model |