CN101959332A - Single-core constantan alloy stranded wire PFA (Perfluoroethylene-Perfluoroether Copolymer) insulating jacket and PVC (Polyvinyl Chloride) reinforced jacket electric heating tape - Google Patents
Single-core constantan alloy stranded wire PFA (Perfluoroethylene-Perfluoroether Copolymer) insulating jacket and PVC (Polyvinyl Chloride) reinforced jacket electric heating tape Download PDFInfo
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- CN101959332A CN101959332A CN 201010153178 CN201010153178A CN101959332A CN 101959332 A CN101959332 A CN 101959332A CN 201010153178 CN201010153178 CN 201010153178 CN 201010153178 A CN201010153178 A CN 201010153178A CN 101959332 A CN101959332 A CN 101959332A
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Abstract
The invention relates to a single-core constantan alloy stranded wire PFA (Perfluoroethylene-Perfluoroether Copolymer) insulating jacket and a PVC (Polyvinyl Chloride) reinforced jacket electric heating tape, which are mainly used for the heat insulating and the heating of pipelines and containers in the fields of petrochemical industry, fire fighting, steel, electric power, and the like. The electric heating tape sequentially comprises a core wire (1), a first insulating layer (2), a second insulating layer (3), an inner jacket (4), a shielding layer (5), an outer jacket (6) and a reinforced jacket (7) which are compounded from inside to outside, wherein the core wire (1) is made of a single-core constantan alloy stranded wire; the first insulating layer (2), the second insulating layer (3), the inner jacket (4) and the outer jacket (6) are made of a PFA; and the reinforced jacket (7) is made of PVC. The electric heating tape can be repeatedly bent, thereby greatly prolonging the service life.
Description
(1) technical field
The present invention 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 present invention 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 objective of the invention is to overcome above-mentioned deficiency, can repeat bending when providing a kind of ribbon heater to install, the single core constantan twisted wire PFA insulation that useful life is long and the permanent power series electrical of the sheath short distance torrid zone.
The object of the present invention is achieved like this: PFA insulation of a kind of single core constantan twisted wire 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 constantan twisted 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:
Single core constantan twisted wire PFA insulation of the present invention 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 the constantan twisted 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 invention has the beneficial effects as follows:
Single core constantan twisted 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 single core constantan twisted wire PFA insulation of the present invention 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 single core constantan twisted wire PFA insulation of the present invention 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, the single core constantan twisted wire PFA insulation of the present invention 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 constantan twisted 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 constantan twisted 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 constantan twisted 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 |
|---|---|---|---|
| CN 201010153178 CN101959332A (en) | 2010-04-14 | 2010-04-14 | Single-core constantan alloy stranded wire PFA (Perfluoroethylene-Perfluoroether Copolymer) insulating jacket and PVC (Polyvinyl Chloride) reinforced jacket electric heating tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010153178 CN101959332A (en) | 2010-04-14 | 2010-04-14 | Single-core constantan alloy stranded wire PFA (Perfluoroethylene-Perfluoroether Copolymer) insulating jacket and PVC (Polyvinyl Chloride) reinforced jacket electric heating tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101959332A true CN101959332A (en) | 2011-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010153178 Pending CN101959332A (en) | 2010-04-14 | 2010-04-14 | Single-core constantan alloy stranded wire PFA (Perfluoroethylene-Perfluoroether Copolymer) insulating jacket and PVC (Polyvinyl Chloride) reinforced jacket electric heating tape |
Country Status (1)
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| CN (1) | CN101959332A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114360790A (en) * | 2021-12-23 | 2022-04-15 | 扬州利家科技有限公司 | Explosion-proof corrosion-resistant type series electric tracing band |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2089682U (en) * | 1991-03-05 | 1991-11-27 | 无锡市纺织产品品种研究所 | Special thin fasciated yarn spinning electric heating wire |
| CN2183128Y (en) * | 1993-10-09 | 1994-11-23 | 王玉基 | Screened heating-wire electric-warming blanket |
| CN2341339Y (en) * | 1997-12-09 | 1999-09-29 | 程崇钧 | Automatic temperature controlling electric heating wire |
| CN1472989A (en) * | 2002-07-31 | 2004-02-04 | 张志洪 | Fluroplastic alloy heating cable |
| CN1494357A (en) * | 2002-10-29 | 2004-05-05 | 张志洪 | Glass fiber mica alloy heat generating wire cable |
-
2010
- 2010-04-14 CN CN 201010153178 patent/CN101959332A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2089682U (en) * | 1991-03-05 | 1991-11-27 | 无锡市纺织产品品种研究所 | Special thin fasciated yarn spinning electric heating wire |
| CN2183128Y (en) * | 1993-10-09 | 1994-11-23 | 王玉基 | Screened heating-wire electric-warming blanket |
| CN2341339Y (en) * | 1997-12-09 | 1999-09-29 | 程崇钧 | Automatic temperature controlling electric heating wire |
| CN1472989A (en) * | 2002-07-31 | 2004-02-04 | 张志洪 | Fluroplastic alloy heating cable |
| CN1494357A (en) * | 2002-10-29 | 2004-05-05 | 张志洪 | Glass fiber mica alloy heat generating wire cable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114360790A (en) * | 2021-12-23 | 2022-04-15 | 扬州利家科技有限公司 | Explosion-proof corrosion-resistant type series electric tracing band |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110126 |