CN201821523U - Single-core constantan alloy strand silicon rubber insulation and sheath short-distance constant power electric heating tape - Google Patents
Single-core constantan alloy strand silicon rubber insulation and sheath short-distance constant power electric heating tape Download PDFInfo
- Publication number
- CN201821523U CN201821523U CN2010201673913U CN201020167391U CN201821523U CN 201821523 U CN201821523 U CN 201821523U CN 2010201673913 U CN2010201673913 U CN 2010201673913U CN 201020167391 U CN201020167391 U CN 201020167391U CN 201821523 U CN201821523 U CN 201821523U
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- Prior art keywords
- silicon rubber
- sheath
- electric heating
- heating tape
- ribbon heater
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- 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
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Abstract
The utility model relates to a single-core constantan alloy strand silicon rubber insulation and sheath short-distance constant power electric heating tape which is mainly used for the heat insulation and the heating of petrochemical engineering, fire control, iron and steel, power and other pipelines, and containers; the electric heating tape sequentially comprises a total of six layers, i.e. a core wire (1), a first insulation layer (2), a second insulation layer (3), an inner sheath (4), a shield layer (5) and an outer sheath (6) which are compounded together from inside to outside; the core wire (1) is made of a single-core constantan alloy strand; and the first insulation layer (2), the second insulation layer (3), the inner sheath (4) and the outer sheath (6) are made of silicon rubber. The electric heating tape can be repeatedly bent when being installed, 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 single core constantan twisted wire silicon rubber 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 constantan twisted wire silicon rubber 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 single core constantan twisted wire, and first insulating barrier, second insulating barrier, inner sheath and jacket material adopt silicon rubber.
Operation principle:
The permanent power of the utility model list core constantan twisted wire silicon rubber insulation and sheath short distance ribbon heater is a kind of electric-heating belt of being made heater (heart yearn), the insulation of silicon rubber 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:
Single core constantan twisted wire silicon rubber 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 silicone rubber insulation layer 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 utility model list core constantan twisted wire silicon rubber insulation 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 the utility model list core constantan twisted wire silicon rubber insulation 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, the permanent power of the utility model list core constantan twisted wire silicon rubber insulation and sheath short distance 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 single core constantan twisted wire; First insulating barrier 2, second insulating barrier 3, inner sheath 4 and oversheath 6 materials adopt silicon rubber.
Claims (1)
1. the permanent power of single core constantan twisted wire silicon rubber insulation and 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 single core constantan twisted wire, and first insulating barrier (2), second insulating barrier (3), inner sheath (4) and oversheath (6) material adopt silicon rubber.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010201673913U CN201821523U (en) | 2010-04-14 | 2010-04-14 | Single-core constantan alloy strand silicon rubber insulation and sheath short-distance constant power electric heating tape |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010201673913U CN201821523U (en) | 2010-04-14 | 2010-04-14 | Single-core constantan alloy strand silicon rubber insulation and sheath short-distance constant power electric heating tape |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201821523U true CN201821523U (en) | 2011-05-04 |
Family
ID=43919464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2010201673913U Expired - Fee Related CN201821523U (en) | 2010-04-14 | 2010-04-14 | Single-core constantan alloy strand silicon rubber insulation and sheath short-distance constant power electric heating tape |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN201821523U (en) |
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2010
- 2010-04-14 CN CN2010201673913U patent/CN201821523U/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 | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20140414 |