CN101959336A - Fluorinated ethylene propylene (FEP) insulating and jacketing short-distance constant-power electric heat tape with dual-core constantan alloy twisted wire - Google Patents
Fluorinated ethylene propylene (FEP) insulating and jacketing short-distance constant-power electric heat tape with dual-core constantan alloy twisted wire Download PDFInfo
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- CN101959336A CN101959336A CN 201010158803 CN201010158803A CN101959336A CN 101959336 A CN101959336 A CN 101959336A CN 201010158803 CN201010158803 CN 201010158803 CN 201010158803 A CN201010158803 A CN 201010158803A CN 101959336 A CN101959336 A CN 101959336A
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- twisted wire
- electric heat
- fep
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Abstract
The invention relates to an FEP insulating and jacketing short-distance constant-power electric heat tape with a dual-core constantan alloy twisted wire, which is mainly used for the thermal insulation and heating of tubes and containers in fields of petrochemical industry, fire control, electricity and the like. The electric heat tape is formed by combining a core wire (1), a first insulation layer (2), a second insulation layer (3), an inner jacket (4), a shielding layer (5) and an outer jacket (6) in turn from the inside to the outside, wherein the core wire (1) adopts the dual-core constantan alloy twisted wire; and the first insulation layer (2), the second insulation layer (3), the inner jacket (4) and the outer jacket (6) are made from fluorinated ethylene propylene. The electric heat tape of the invention can be repeatedly bent in installation, so that the service life is greatly prolonged.
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 twin-core constantan twisted wire FEP 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: a kind of twin-core constantan twisted wire FEP insulation and the permanent power of sheath short distance 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 and oversheath totally six layers be composited, described heart yearn adopts twin-core constantan twisted wire, and first insulating barrier, second insulating barrier, inner sheath and jacket material adopt perfluoroethylene-propylene.
Operation principle:
Twin-core constantan twisted wire FEP insulation of the present invention and the permanent power of sheath short distance ribbon heater are a kind of electric-heating belts of being made heater (heart yearn), the insulation of FEP (perfluoroethylene-propylene) 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:
Twin-core constantan twisted wire FEP insulation has power output and the temperature resistant grade identical with permanent power ribbon heater in parallel with the permanent power of sheath short distance 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 FEP 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 twin-core constantan twisted wire FEP insulation of the present invention and the permanent power of sheath short distance 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 twin-core constantan twisted wire FEP insulation of the present invention and the permanent power of sheath short distance 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, twin-core constantan twisted wire FEP of the present invention insulation and the permanent power of sheath short distance ribbon heater, from interior outside oneself successively by heart yearn 1, first insulating barrier 2, second insulating barrier 3, inner sheath 4, screen 5 and oversheath 6 totally six layers be composited.Described heart yearn 1 adopts twin-core constantan twisted wire; First insulating barrier 2, second insulating barrier 3, inner sheath 4 and oversheath 6 materials adopt FEP (perfluoroethylene-propylene).
Claims (1)
1. a twin-core constantan twisted wire FEP insulate and the permanent power of sheath short distance 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) and oversheath (6) totally six layers be composited, described heart yearn (1) adopts twin-core constantan twisted wire, and first insulating barrier (2), second insulating barrier (3), inner sheath (4) and oversheath (6) material adopt perfluoroethylene-propylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010158803 CN101959336A (en) | 2010-04-21 | 2010-04-21 | Fluorinated ethylene propylene (FEP) insulating and jacketing short-distance constant-power electric heat tape with dual-core constantan alloy twisted wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010158803 CN101959336A (en) | 2010-04-21 | 2010-04-21 | Fluorinated ethylene propylene (FEP) insulating and jacketing short-distance constant-power electric heat tape with dual-core constantan alloy twisted wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101959336A true CN101959336A (en) | 2011-01-26 |
Family
ID=43486333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010158803 Pending CN101959336A (en) | 2010-04-21 | 2010-04-21 | Fluorinated ethylene propylene (FEP) insulating and jacketing short-distance constant-power electric heat tape with dual-core constantan alloy twisted wire |
Country Status (1)
| Country | Link |
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| CN (1) | CN101959336A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102395228A (en) * | 2011-12-01 | 2012-03-28 | 大庆航天三沃新技术产业有限责任公司 | Optical fiber electric heat tape |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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
- 2010-04-21 CN CN 201010158803 patent/CN101959336A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
|---|---|---|---|---|
| CN102395228A (en) * | 2011-12-01 | 2012-03-28 | 大庆航天三沃新技术产业有限责任公司 | Optical fiber electric heat tape |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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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 |