CN201708963U - Twin-core constantan alloy stranded wire PFA insulated sheath and PVC reinforced sheath ribbon heater - Google Patents
Twin-core constantan alloy stranded wire PFA insulated sheath and PVC reinforced sheath ribbon heater Download PDFInfo
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- CN201708963U CN201708963U CN2010201731302U CN201020173130U CN201708963U CN 201708963 U CN201708963 U CN 201708963U CN 2010201731302 U CN2010201731302 U CN 2010201731302U CN 201020173130 U CN201020173130 U CN 201020173130U CN 201708963 U CN201708963 U CN 201708963U
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Abstract
The utility model relates to a twin-core constantan alloy stranded wire PFA insulated sheath and PVC reinforced sheath ribbon heater which is mainly used for heat preservation and heating of pipes and containers in petrochemical industry, firefighting, steel industry, power industry and the like. The ribbon heater sequentially consists of a core wire (1), a first insulating layer (2), a second insulating layer (3), an inner sheath (4), a shielding layer (5), an outer sheath (6) and a reinforcing sheath (7) in a compositing way from the inside to the outside, wherein the core wire (1) is made of a dual-core constantan alloy stranded wire, the first insulating layer (2), the second insulating layer (3), the inner sheath (4) and the outer sheath (6) are made of tetrafluoroethylene perfluoroether copolymers, and the reinforcing sheath (7) is made of PVC. The utility model has the advantages that the ribbon heater can be repetitively folded during installation and the service life is greatly prolonged.
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 twin-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 purpose of this utility model is achieved in that the PFA insulation of a kind of twin-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 twin-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:
Twisted wire PFA insulation of the utility model twin-core constantan 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 beneficial effects of the utility model are:
Twin-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 twisted wire PFA insulation of the utility model twin-core constantan 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 twisted wire PFA insulation of the utility model twin-core constantan 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, twisted wire PFA insulation of the utility model twin-core constantan 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 twin-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. twin-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 twin-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 |
---|---|---|---|
CN2010201731302U CN201708963U (en) | 2010-04-21 | 2010-04-21 | Twin-core constantan alloy stranded wire PFA insulated sheath and PVC reinforced sheath ribbon heater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN2010201731302U CN201708963U (en) | 2010-04-21 | 2010-04-21 | Twin-core constantan alloy stranded wire PFA insulated sheath and PVC reinforced sheath ribbon heater |
Publications (1)
Publication Number | Publication Date |
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CN201708963U true CN201708963U (en) | 2011-01-12 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN2010201731302U Expired - Fee Related CN201708963U (en) | 2010-04-21 | 2010-04-21 | Twin-core constantan alloy stranded wire PFA insulated sheath and PVC reinforced sheath ribbon heater |
Country Status (1)
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CN (1) | CN201708963U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101998707A (en) * | 2010-04-21 | 2011-03-30 | 江阴市华能电热器材有限公司 | Double-core constantan alloy stranded wire poly fluoro alkoxy (PFA) insulated sheath and poly vinyl chloride (PVC) strengthening sheath electric heating belt |
-
2010
- 2010-04-21 CN CN2010201731302U patent/CN201708963U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101998707A (en) * | 2010-04-21 | 2011-03-30 | 江阴市华能电热器材有限公司 | Double-core constantan alloy stranded wire poly fluoro alkoxy (PFA) insulated sheath and poly vinyl chloride (PVC) strengthening sheath electric heating belt |
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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: 20110112 Termination date: 20140421 |