CN104168675A - Ultralong heating cable - Google Patents
Ultralong heating cable Download PDFInfo
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- CN104168675A CN104168675A CN201410356515.5A CN201410356515A CN104168675A CN 104168675 A CN104168675 A CN 104168675A CN 201410356515 A CN201410356515 A CN 201410356515A CN 104168675 A CN104168675 A CN 104168675A
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- carbon fiber
- heating body
- fiber heating
- cable
- electric conductor
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Abstract
Disclosed is an ultralong heating cable which includes two or three conductors arranged in parallel. Each conductor is wrapped externally with an insulating layer. All insulating layers are externally wrapped with a liner layer. The liner layer is wrapped externally with a sheath layer. A part between the insulating layers and the liner layer is filled with a carbon fiber heating body. Special points of the ultralong heating cable are as follows: the carbon fiber heating body adopts a carbon fiber rope which is formed through twisting and adhesion of a plurality of carbon fibers which undergo high-temperature sintering and the carbon fiber heating body is of a multisection structure. When the number of the conductors is two, a start point and an end point of each section of carbon fiber heating body are connected with the two conductors in alternation sequentially so that fold-line parallel connection is formed, or when the number of the conductors is three, a start point, a middle point and an end point of each section of carbon fiber heating body are connected with the three conductors in alternation sequentially so that fold-line parallel connection is formed, and each section of carbon fiber heating body forms a circuit with a corresponding conductor. The heating cable is long in length, energy saving, long in service life, high in tensile strength, low in product cost and wide in application range.
Description
Technical field
The present invention relates to a kind of overlength heating cable.
Background technology
Existing booth heat cable adopt wire as calandria and and conductor between adopt parallel connection method, its defect is: 1, parallel connection method length is too short, only has about 6-10 rice to be unfavorable for that booth normally uses.Lay complicated inconvenience, field management is inconvenient, inapplicable large area booth uses.What 2, electric cable heating material adopted is wire, and electric energy is converted to the efficiency of heat energy and only has 70% left and right, and consuming electric power is too large, and booth production cost is increased, and economic benefit is low.3, cable is short useful life, be mainly heating of metal silk oxidizable, blow.4, metallic cable complex manufacturing, product price is higher.
Summary of the invention
The technical problem to be solved in the present invention is to provide that a kind of length is long, energy-conservation, long service life, tensile strength is high, product cost is low, the overlength heating cable of applied range.
A kind of overlength heating cable the present invention relates to, it has two or three electric conductors that are arranged in juxtaposition, each electric conductor is wrapped with insulating barrier, all insulating barriers are wrapped with inner covering, inner covering outer wrapping restrictive coating, filling carbon fiber calandria between described insulating barrier and inner covering, its special character is: it is multi-segment structure that described carbon fiber heating body adopts and the bond together carbon fiber rope and the described carbon fiber heating body that form stranded by many carbon fibers through high temperature sinterings, in the time that electric conductor is two, the starting point of every section of carbon fiber heating body and terminal are alternately connected to form broken-line type with two electric conductors successively and connect or the starting point of every section of carbon fiber heating body in the time that electric conductor is three, mid point and terminal are alternately connected to form broken-line type and connect with three electric conductors successively, every section of carbon fiber heating body forms loop with corresponding electric conductor.
Individual carbon fibers sintering temperature is 800-850 DEG C, and the time is 40-60s.
Beneficial effect of the present invention:
1, overlength
Between this electric cable heating body and electric conductor, be broken line parallel connection method, be designed to yi word pattern heating cable, its effective length can reach 200-1000 rice, lays convenience, practicality.
2, energy-conservation
Adopting through the carbon fiber the carbon fiber rope stranded and formation that bonds together of high temperature sintering is calandria, can obtain stable electrical resistance, and electric conversion efficiency, up to 98%, uses and is not oxidized under the condition of high temperature, and the load of the electric current of its unit are does not change.Heat conduction velocity is directly proportional to heater surface area in addition, and the single diameter of carbon fiber stranded and that bond together only has 0.02mm, and the cooling surface area of carbon fiber heating body is big is that alloy electric heating element cannot be comparable.Therefore, carbon fiber heating cable can be realized energy-conservation reaching more than 30% compared with traditional alloy electric heating element.
3, high, the long service life of cable tensile strength
The single heater wire of the traditional heating cable length that uses in parallel is shorter, less demanding to cable tensile strength.And this overlength carbon fiber cable is had relatively high expectations to cable tensile strength.Carbon fiber characteristic of self in the time of cold conditions just has tensile strength high (being 10 times of left and right of steel tensile strength), light specific gravity, non-oxidation, anticorrosive, high-modulus, high temperature resistant (more than 1000 DEG C), antifatigue, creep resistant, feature that cost is low, can reduce costs 20% left and right, long service life, can meet the requirement of this cable tensile strength completely.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention 1;
Fig. 2 is calandria and the electric conductor longitudinal connection structure schematic diagram of the embodiment of the present invention 1;
Fig. 3 is the cross-sectional schematic diagram in end points D place in Fig. 1;
Fig. 4 is the cross-sectional schematic diagram in end points E place in Fig. 1;
Fig. 5 is the structural representation of the embodiment of the present invention 2;
Fig. 6 is calandria and the electric conductor longitudinal connection structure schematic diagram of the embodiment of the present invention 2;
Fig. 7 is calandria and the electric conductor transverse connection structure schematic diagram of the embodiment of the present invention 2;
Fig. 8 is the cross-sectional schematic diagram in end points F place of Fig. 6;
Fig. 9 is the cross-sectional schematic diagram in end points G place of Fig. 6;
Figure 10 is the cross-sectional schematic diagram in end points H place of Fig. 6.
Embodiment
Embodiment 1
As Fig. 1-Fig. 2 shows, the overlength heating cable the present invention relates to, comprises two electric conductors that are arranged in juxtaposition 1, is respectively electric conductor A, electric conductor B.Each electric conductor 1 is wrapped with 2, two insulating barriers of insulating barrier, 2 outer wrapping polyester film inner coverings 4, inner covering 4 outer wrapping restrictive coatings 5; Filling carbon fiber calandria 3 between insulating barrier 2 and inner covering 4, it is multi-segment structure that described carbon fiber heating body 3 adopts by many stranded and carbon fiber rope and the carbon fiber heating body 3 forming that bond together of the carbon fiber through high temperature sinterings, wherein individual carbon fibers sintering temperature is 800-850 DEG C, time is 40-60s, the starting point of every section of carbon fiber heating body and terminal are alternately connected to form broken-line type and connect with electric conductor A, electric conductor B successively, and every section of carbon fiber heating body forms loop with electric conductor A, electric conductor B respectively.As shown in Figure 3, the end points D that every section of carbon fiber heating body 3 is connected with electric conductor A is positioned at the insulating barrier 2 of parcel electric conductor A.As shown in Figure 3, the end points E that every section of carbon fiber heating body 3 is connected with electric conductor B is positioned at the insulating barrier 2 of parcel electric conductor B.
The technological process of production is as follows:
1, conductor draws
According to cable serviceability temperature, length, power determination cross section.
3, insulating barrier
Determine insulation thickness according to magnitude of voltage.Simultaneously online spark bulge test.Press the electric pressure of cable, determine test voltage value, test rate will reach 100%.
4, stranding, broken-line type connect
4,1 electric leakage punching
Determine punching size according to the heating power of cable, cable length.
4,2 carbon fiber sintering
Determine carbon fiber specification, number of share of stock, resistance according to the heating power of cable, cable length.Carry out sintering by technological parameter, guarantee that resistance is stable.Individual carbon fibers sintering temperature is 800-850 DEG C, and the time is 40-60s, and the present embodiment is 820 DEG C, and the time is 45S.
4,3 by process parameter value, carries out contact and presses aluminum alloy strip, cable is carried out to resistance detection simultaneously, guarantees to reach parameter value; Wrapping lining-layer.
5, restrictive coating is extruded
Determine jacket thickness according to the outside diameter of cable.
This cable is in single-phase 220V power voltage supply mode, and two electric conductors are for logical electric conductor, taking high-strength carbon fiber rope as heater.In cable, carbon fiber heating body and two electric conductors form loop through broken-line type and after connecing, and after energising, carbon fiber heating body produces heat.
This cable has the characteristic that thermal conversion efficiency is high, and compared with present normal cable, it has the features such as energy-conservation, lightweight, overlength, the life-span is long, non-maintaining, resistance to tension strong, homogeneous heating programming rate is fast.
Embodiment 2
As shown in Figure 5-Figure 7, the present invention includes three electric conductors that are arranged in juxtaposition 1, be respectively electric conductor A, electric conductor B and electric conductor C, corresponding A, B, C three-phase.Each electric conductor 1 is wrapped with 2, three insulating barriers of insulating barrier, 2 outer wrapping polyester film inner coverings 4, inner covering 4 outer wrapping restrictive coatings 5; Filling carbon fiber calandria 3 between insulating barrier 2 and inner covering 4, described carbon fiber heating body 3 adopts the stranded and carbon fiber rope that forms and be multi-segment structure of bonding together of by the many carbon fiber through high temperature sinterings, wherein individual carbon fibers sintering temperature is 800-850 DEG C, time is 40-60s, and starting point, mid point and the terminal of every section of carbon fiber heating body is alternately connected to form broken-line type with electric conductor A, electric conductor B and electric conductor C successively and connects and form loop.As shown in Figure 8, the end points F that every section of carbon fiber heating body 3 is connected with electric conductor A is positioned at the insulating barrier 2 of parcel electric conductor A.As shown in Figure 9, the end points G that every section of carbon fiber heating body is connected with electric conductor B is positioned at the insulating barrier 2 of parcel electric conductor V.As shown in figure 10, the end points H being connected with electric conductor C in every section of carbon fiber heating body is positioned at the insulating barrier 2 of parcel electric conductor C.
The technological process of production is as follows:
1, conductor draws
According to cable serviceability temperature, length, power determination cross section.
3, insulating barrier
Determine insulation thickness according to magnitude of voltage.Simultaneously online spark bulge test.Press the electric pressure of cable, determine test voltage value, test rate will reach 100%.
4, stranding, broken-line type connect
4,1 electric leakage punching
Determine punching size according to the heating power of cable, cable length.
4,2 carbon fiber sintering
Determine carbon fiber specification, number of share of stock, resistance according to the heating power of cable, cable length.Carry out sintering by technological parameter, guarantee that resistance is stable.Individual carbon fibers sintering temperature is 800-850 DEG C, and the time is 40-60s, and the present embodiment is 830 DEG C, and the time is 55S.
4,3 by process parameter value, carries out contact and presses aluminum alloy strip, cable is carried out to resistance detection simultaneously, guarantees to reach parameter value; Wrapping lining-layer.
5, restrictive coating is extruded
Determine jacket thickness according to the outside diameter of cable.
Claims (2)
1. an overlength heating cable, it has two or three electric conductors that are arranged in juxtaposition, each electric conductor is wrapped with insulating barrier, all insulating barriers are wrapped with inner covering, inner covering outer wrapping restrictive coating, filling carbon fiber calandria between described insulating barrier and inner covering, it is characterized in that: it is multi-segment structure that described carbon fiber heating body adopts and the bond together carbon fiber rope and the described carbon fiber heating body that form stranded by many individual carbon fibers through high temperature sinterings, in the time that electric conductor is two, the starting point of every section of carbon fiber heating body and terminal are alternately connected to form broken-line type with two electric conductors successively and connect or the starting point of every section of carbon fiber heating body in the time that electric conductor is three, mid point and terminal are alternately connected to form broken-line type and connect with three electric conductors successively, every section of carbon fiber heating body forms loop with corresponding electric conductor.
2. overlength heating cable according to claim 1, is characterized in that: individual carbon fibers sintering temperature is 800-850 DEG C, and the time is 40-60s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410356515.5A CN104168675A (en) | 2014-07-25 | 2014-07-25 | Ultralong heating cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410356515.5A CN104168675A (en) | 2014-07-25 | 2014-07-25 | Ultralong heating cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104168675A true CN104168675A (en) | 2014-11-26 |
Family
ID=51912252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410356515.5A Pending CN104168675A (en) | 2014-07-25 | 2014-07-25 | Ultralong heating cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN104168675A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104837228A (en) * | 2015-05-19 | 2015-08-12 | 李飞 | Super long carbon fiber heating cable |
| CN105139960A (en) * | 2015-03-28 | 2015-12-09 | 安徽瑞昊缆业有限公司 | Industrial corrosion-proof crosslinked polyethylene cable |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1130856A (en) * | 1995-12-17 | 1996-09-11 | 赵放 | Alloy PTC parallel type electric heating strip |
| JPH10340778A (en) * | 1997-06-05 | 1998-12-22 | Totoku Electric Co Ltd | Heater wire |
| CN201393312Y (en) * | 2009-03-30 | 2010-01-27 | 孙凤霞 | Active integrated carbon fiber electric heating belt |
| CN101702844A (en) * | 2009-11-13 | 2010-05-05 | 程显军 | Carbon fiber cable for oil tanks, oil pipes in oil wells and oil transmission pipelines |
| CN201466230U (en) * | 2009-07-06 | 2010-05-12 | 武汉科兹热能技术有限公司 | Joint for connecting carbon fiber with metal conducting wire |
| CN201616921U (en) * | 2010-02-03 | 2010-10-27 | 陈聪荣 | Double-conductive far infrared heating cable |
-
2014
- 2014-07-25 CN CN201410356515.5A patent/CN104168675A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1130856A (en) * | 1995-12-17 | 1996-09-11 | 赵放 | Alloy PTC parallel type electric heating strip |
| JPH10340778A (en) * | 1997-06-05 | 1998-12-22 | Totoku Electric Co Ltd | Heater wire |
| CN201393312Y (en) * | 2009-03-30 | 2010-01-27 | 孙凤霞 | Active integrated carbon fiber electric heating belt |
| CN201466230U (en) * | 2009-07-06 | 2010-05-12 | 武汉科兹热能技术有限公司 | Joint for connecting carbon fiber with metal conducting wire |
| CN101702844A (en) * | 2009-11-13 | 2010-05-05 | 程显军 | Carbon fiber cable for oil tanks, oil pipes in oil wells and oil transmission pipelines |
| CN201616921U (en) * | 2010-02-03 | 2010-10-27 | 陈聪荣 | Double-conductive far infrared heating cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105139960A (en) * | 2015-03-28 | 2015-12-09 | 安徽瑞昊缆业有限公司 | Industrial corrosion-proof crosslinked polyethylene cable |
| CN104837228A (en) * | 2015-05-19 | 2015-08-12 | 李飞 | Super long carbon fiber heating cable |
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Application publication date: 20141126 |
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| RJ01 | Rejection of invention patent application after publication |