CN1272984C - Glass fiber mica alloy heat generating wire cable - Google Patents
Glass fiber mica alloy heat generating wire cable Download PDFInfo
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- CN1272984C CN1272984C CN 02137670 CN02137670A CN1272984C CN 1272984 C CN1272984 C CN 1272984C CN 02137670 CN02137670 CN 02137670 CN 02137670 A CN02137670 A CN 02137670A CN 1272984 C CN1272984 C CN 1272984C
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Abstract
The present invention relates to a fiberglass mica alloy heating wire cable. The present invention at least comprises a heating wire, an insulation layer and a shielding layer, wherein the heating wire is coated by the insulation layer, and the shielding layer is sheathed on the outside of the insulation layer. The present invention is characterized in that the heating wire is composed of a metal conductor wire, and the metal conductor wire is connected with a power cord; the insulation layer is composed of an inner insulation layer and an outer insulation layer, the inner insulation layer is coated on the outside of the heating wire, the outer insulation layer is coated on the outside of the shielding layer, the inner insulation layer comprises three layers of a fiberglass braid layer as the first layer, a mica band braid layer as the second layer and a fiberglass braid layer as the third layer, and the outer insulation layer is made of a fiberglass braid layer or polytetrafluoroethene, neoflon and fluorine rubber; the heating wire adopts other alloy resistance wires, such as a constantan wire, a manganin wire, a Cr20Ni80 wire, etc. as the metal conductor wire, the heating wire also comprises non-heating conductor wires which are fixed to both ends of the heating wire, one end of each non-heating conductor wire is connected with the heating wire through a welding spot, and the other end of each non-heating conductor wire is connected with the power cord.
Description
Technical field
The present invention relates to a kind of electric heating device, relate in particular to and a kind ofly carry out the used glass fiber mica alloy heat generating wire cable of electric heating applicable to all trades and professions.
Background technology
In the prior art electric heater, the employing metal electric heating tube is more, general wires such as metal electric heating tube employing siderochrome aluminium high resistance are done heater element, and do the insulation material with magnesia powder, and use iron, copper, stainless steel, Titaniums etc. are made outer tube, therefore metal electric heating tube is a kind of rigid electric heating device, it has higher heating-up temperature, typical temperature can arrive 800 ℃～1000 ℃, so metal electric heating tube has the strong and weak characteristics of low-temperature space heating advantage of high-temperature region heating advantage, and (calorific intensity can reach 1～3KW/M) to have higher calorific intensity, therefore the unit volume heating power is big, and it is less that volume can be done.Therefore, be best suited for the high-temperature region heating.
Though metal electric heating tube has the high characteristics of calorific intensity,, the shortcoming of Cun Zaiing is in actual use:
1. belong to rigid electric heating device owing to this metal of prior art electric heating tube, not only its min. turning radius is big, just can not change shape again after the formed product, and metal processing is difficult, is not suitable for the long-distance pipe heating.
Since this metal of prior art electric heating tube owing to be subjected to heating wire poling and magnesia powder to fill out the influence of pipe, its length is difficult to do length, and is just very difficult greater than 4 meters length, therefore is not suitable for the large tracts of land heating.
3. because the structural limitations of this metal of prior art electric heating tube, electric heating tube internal heat generation silk is big with the temperature difference of the outer heating object of pipe, and the heating wire heating-up temperature can reach 800 ℃～1000 ℃, ≯ 500 ℃ middle low-temperature space heating occasion, it is big to add thermal inertia, so the temperature control characteristic is poor.
4. because the heating wire of this metal of prior art electric heating tube is subjected to the concentricity on the different cross section when being subjected to poling, and the concentricity during bend pipe, oxidated magnesium powder fill out pipe, being shaped adds density on the different cross section in man-hour, be subjected to the influence of the manual processing factors of staff, quality is not easy to stablize, temperature conduction in pipe is difficult for evenly, the metallic resistance filament length phase is operated in the easy oxidation etc. of working of high-temperature region more than 800 ℃, make it to cause that electric heating tube blows easily or punctures, and being not suitable for, so poor safety performance in inflammable and explosive occasion work.
5. because this metal of prior art electric heating tube adopts metal tube to do shell, and not acidproof alkali lye of metal material and chemical solvent corrosion, even adopt the titanium electric heating tube, corrosion-resistant also have a limitation, and useful life is short.
In order to overcome the defective that above-mentioned prior art exists, number of patent application 95119695.2 and number of patent application 02136312.9 disclose a kind of alloy PTC parallel type electric heating strip and a kind of Fluroplastic alloy heating cable.
See also Fig. 1 to shown in Figure 4, this is that number of patent application 95119695.2 is entitled as the structural representation and the electrical schematic diagram of " alloy PTC parallel type electric heating strip ".Described parallel type electric heating strip is made up of the transmission pressure 1 that is arranged parallel to each other, transmission pressure insulating barrier 2, casing play 3, PTC alloy heat generating line 4, solder joint 5, glass layer 6, insulating barrier 7, wire sheathing 8 and anticorrosive coat 9 etc., its principal character is, PTC alloy heat generating line 4 spiral wounds alternately circulate on the partial cut-out of the alternate location successively of reverse certain distance along length and transmission pressure 1 welding conducting by casing play 3 and transmission pressure insulating barrier 2 between casing play 3 and glass layer 6.From Fig. 2 and Fig. 4 as seen, heating line 4 is to be welded on the transmission pressure 1 by one section one section ground to form the ribbon heater, therefore makes very trouble.
See also shown in Figure 5ly, this is that patent No. application 02136312.9 is entitled as the structural representation of " Fluroplastic alloy heating cable ".(10) be that alloy heat generating silk (20) is the fluoroplastics inner insulating layer for fluoroplastic insulation layer (21), (22) be the fluoroplastics external insulation layer, (30) be the metal screen layer of zinc-plated or silver-gilt copper wire, so it is very convenient because of producing by the cable equipment automated production, quality is more reliable, but prior prehensile with electric wire.Belong to a kind of soft heating element.Go out an arteries and veins together in the present invention.
Though alloy PCT ribbon heater in parallel and Fluroplastic alloy heating cable and total many identical advantages of the present invention and characteristics separately can only use at ≯ 200 ℃ low-temperature space, and the advantage of maximum of the present invention can be used at ≯ 500 ℃ middle low-temperature space.
Summary of the invention
The object of the present invention is to provide a kind of glass fiber mica alloy heat generating wire cable, it can make heater wire do the length of km level, and can realize the production of industrial automation, convenient for production, reliable in quality, long service life, it is used to be fit to all trades and professions.
The object of the present invention is achieved like this:
A kind of glass fiber mica alloy heat generating wire cable, this heat generating wire cable comprises at least: a heating line, be coated on the outer insulating barrier of heating line, be set in the outer screen of insulating barrier; Be characterized in:
Described heating line is made up of plain conductor, and this plain conductor also is connected with power line;
Described insulating barrier is formed by being coated on the outer inner insulating layer of heating line and being coated on the outer external insulation layer of screen.
Described inner insulating layer is made by mica tape braid, triplex glass fibrage layer by the fiberglass braided layer of ground floor, the second layer by dividing three layers.
Described external insulation layer by fiberglass braided layer make, polytetrafluoroethylene, perfluoroethylene-propylene or fluorubber make.
In above-mentioned glass fiber mica alloy heat generating wire cable, wherein said heating line also comprises, is fixedly installed on the not heating-wire at heating-wire two ends, this not an end of heating-wire be connected with heating-wire by pad, the other end is connected with power line.
In above-mentioned glass fiber mica alloy heat generating wire cable, wherein said heating line adopts constantan wire, manganese-copper filament, Cr
20Ni
80Silk is done plain conductor.
In above-mentioned glass fiber mica alloy heat generating wire cable, wherein said insulating barrier adopts following material, glass fibers braid, mica tape braid, polytetrafluoroethylene, perfluoroethylene-propylene, fluorubber.
In above-mentioned glass fiber mica alloy heat generating wire cable, wherein, described screen is metal screen layer or is metal screen layer by the silver-gilt copper wire braid by metal copper wire braid.
In above-mentioned glass fiber mica alloy heat generating wire cable, wherein said heat generating wire cable comprises, three heating lines are coated on three outer inner insulating layers of heating line respectively, three heating lines behind the coating inner insulating layer are wrapped up in the screen that is combined in wherein, be arranged on the outer external insulation layer of screen.
Glass fiber mica alloy heat generating wire cable of the present invention owing to adopted technique scheme, makes it compared with prior art, has following tangible advantage and good effect:
1. glass fiber mica alloy heat generating wire cable of the present invention is owing to adopt the precious metal alloys of high resistance to do heating conductor, resistant to elevated temperatures glass fiber mica is made dielectric, adopt metal copper wire or silver-gilt copper wire woven shield, therefore in the occasion of electric heating temperature ≯ 500 ℃, can give full play to the advantage of the middle low-temperature heat of glass fiber mica alloy heat generating wire cable.
2. but glass fiber mica alloy heat generating wire cable of the present invention is owing to make full use of the heat generation characteristic and the prehensile characteristics of electric wire, can conveniently form heating next to the shin, and can accomplish the length of several kms, making it provides effective condition for long apart from the large tracts of land heating, is outstanding soft electrical heating elements therefore.
3. glass fiber mica alloy heat generating wire cable of the present invention is because heat generating wire cable heating Homogeneouslly-radiating is effective, temperature is even, and have less thermal inertia and good heating control characteristic, therefore can be applied in the place that control precision has relatively high expectations and heat and preservation and controlling.
4. glass fiber mica alloy heat generating wire cable of the present invention is owing to adopt multilayer insulation and shielding action, can effectively prevent battery pollution, effectively prevent electric leakage, effectively prevent short circuit, effective electromagnetic shielding action and electric insulating state, forming well anti-electric wall notion, is a kind of novel electrical heating elements of safety of green.
5. the external insulation layer of glass line mica alloy heat generating wire cable of the present invention is used one of following material instead by glass fibre: polytetrafluoroethylene, perfluoroethylene-propylene, fluorubber are done external insulation layer, the glass fiber mica alloy heat generating wire cable of this moment has had the characteristic and the advantage of Fluroplastic alloy heating cable, and particularly the present invention has more remarkable advantages and more practical in 150 ℃～200 ℃ heated perimeter.Thereby can be applicable to various acid ﹠ alkali liquids, chemical reagent, natural gas, various oil plants, combustible and explosive articles such as paint, poisonous and hazardous dangerous material carry out direct or indirect heating and insulation.
Description of drawings
By the description of following some embodiment to glass fiber mica alloy heat generating wire cable of the present invention, can further understand purpose of the present invention, specific structural features and advantage in conjunction with its accompanying drawing.Wherein, accompanying drawing is:
Fig. 1 is the structural representation of prior art alloy PCT parallel single-phase formula ribbon heater;
Fig. 2 is the electrical schematic diagram of Fig. 1 single-phase alloy PCT parallel type electric heating strip;
Fig. 3 is the structural representation of prior art triple-phase alloys PCT parallel type electric heating strip;
Fig. 4 is the electrical schematic diagram of Fig. 3 triple-phase alloys PCT parallel type electric heating strip;
Fig. 5 is single-phase Fluroplastic alloy heating electric wire cutaway view;
Fig. 6 is a three-phase Fluroplastic alloy heating cable cutaway view;
Fig. 7 is the structural representation of single-phase glass fiber mica alloy heat generating electric wire among glass fiber mica alloy heat generating wire cable first embodiment of the present invention;
Fig. 8 is glass fiber mica alloy heat generating wire cable second embodiment of the present invention, the structural representation of three-phase glass fiber mica alloy heat generating cable;
Fig. 9 is the heating end of glass fiber mica alloy heat generating wire cable of the present invention and the welding schematic diagram of the end that do not generate heat;
Embodiment
See also shown in Figure 7ly, glass fiber mica alloy heat generating wire cable of the present invention comprises at least, one heating line (10), outside heating line (10), coat inner insulating layer (20), be set in the outer screen (30) of inner insulating layer (20), and be set in outer external insulation layer (20) composition of screen.
Described heating line (10) is made up of plain conductor (11), and is connected with power line; Plain conductor (11) as heating conductor should adopt the material with resistance value good stability, owing to constantan wire plain conductor, manganese-copper filament plain conductor, Cr
20Ni
80The silk plain conductor not only has good stable resistance value, and have good oxidization resistance and good solderability, so machining property is good, for this reason, that adopt as the plain conductor (11) of heating conductor in the present invention, is constantan wire plain conductor, manganese-copper filament plain conductor, Cr
20Ni
80The silk plain conductor.
Described insulating barrier (20) comprises inner insulating layer (21,22,23) and is coated on the outer external insulation layer (24) of screen, in the present invention, interior external insulation layer (21) and (23) are made by fiberglass braided layer, inner insulating layer (22) is made by the mica tape braid, when external insulation layer (24) is made by fiberglass braided layer, glass fiber mica alloy heat generating wire cable of the present invention can use in ≯ 500 ℃ middle low-temperature space scope, when external insulation layer (24) adopt one of following material polytetrafluoroethylene, perfluoroethylene-propylene, when fluorubber is made; Glass fiber mica alloy heat generating wire cable of the present invention can use in ≯ 200 ℃ low-temperature space scope, and above insulating material all is an ideal material of doing insulating barrier.
Described screen (30) is metal screen layer by the braiding of metal copper wire, also can be metal screen layer by the silver-gilt copper wire braiding; Metal screen layer can prevent electromagnetic pollution, can be used as equal thermosphere and heat-conducting layer, and can effectively prevent short circuit and creepage protection function, and the compound use of insulating barrier and screen has formed good anti-electric wall function.
It please is the structural representation of glass fiber mica alloy heat generating wire cable first embodiment of the present invention in conjunction with Fig. 7.In the present embodiment, described heat generating wire cable comprises, a heating line (10), the inner insulating layer (21,22,23) that outside heating line (10), coats, be set in the outer screen (30) of inner insulating layer and be set in the outer external insulation layer (24) of screen, the heating electric wire of present embodiment can be used for the blow-up DC power supply.
It please is the structural representation of glass fiber mica alloy heat generating wire cable second embodiment of the present invention in conjunction with Fig. 8.In the present embodiment, described heat generating wire cable comprises, three heating lines (10), outside three heating lines (10), inner insulating layer (21,22,23) and screen (30) are set respectively, outside coating three heating lines of inner insulating layer (21,22,23) and screen (30), external insulation layer (24) are set.The heating cable of present embodiment can be useful for three-phase alternating-current supply or DC power supply.
Fig. 9 is glass fiber mica alloy heat generating wire cable plain conductor of the present invention (11) and the structural representation that uses of heating-wire (12) not.When glass fiber mica alloy heat generating wire cable of the present invention uses in liquid, for improving heating efficiency, strengthen every meter calorific intensity, can be divided into heating section and the not design of the section of heating, in the present invention, the method that adopts is, heating line (10) is made up of plain conductor (11) and the not heating-wire (12) that is arranged on plain conductor (11) two ends, this is heating-wire (12) employing metal copper wire or silver-gilt copper wire not, an end of heating-wire (12) is not connected with plain conductor (11) by pad (13), the other end is connected with power line, promptly forms the section of not generating heat by heating-wire (12) not, forms the heating section by plain conductor (11); When reality was used, the usefulness not section of heating played the connection lead effect that the heating section in the connection liquid arrives power supply, the section of heating all is immersed in the liquid, thereby improves calorific intensity, makes heating efficiency reach 100%.When making, heating-wire (12) does not adopt and carries out welding manner with plain conductor (11) and be connected, and directly welds as available high-melting-point terne metal, also available butt-welding machine direct spot welding, carrying out cable processing, make it not only to link together, and become smooth one then.
From the above, the characteristics of glass fiber mica alloy heat generating wire cable of the present invention are:
1. but glass fiber mica alloy heat generating wire cable of the present invention has prehensile, can be wrapped on the object of various flat boards, pipeline, container box and different form easily, form heating next to the shin, and can accomplish the length of km, can form the large-area heating of long distance, be outstanding soft heating element therefore.
2. what every meter of glass fiber mica alloy heat generating wire cable of the present invention calorific intensity can be done is very wide, can reach ≯ 100 watts/M, and heating power can reach ≯ 100 kilowatts, for large tracts of land on a large scale in the low-temperature space electric heating created good condition.
3. the maximum operating temperature of glass fiber mica alloy heat generating wire cable of the present invention ≯ 500 ℃, the heating good evenness, can not produce naked light, and insulating material has flame-retarding characteristic, and owing to have short circuit and creepage protection function, therefore function of shielding with anti-electromagnetic pollution has anti-electric wall function, so be the heating element of a safety in the heating of inflammable and explosive substances and insulation; Therefore be the heating element of a long service life.
4. when glass fiber mica alloy heat generating wire cable of the present invention uses in liquid, as long as changing its external insulation layer (24) into one of following material polytetrafluoroethylene, perfluoroethylene-propylene, fluorubber makes insulating barrier and both can, its not design of the section of heating in liquid and in the air, improved heating efficiency, strengthened every meter calorific intensity, therefore had comprehensive corrosion proof function, can in the field of the heating of various acid ﹠ alkali liquids, various oil plant, chemical reagent, chemical solvent, poisonous and hazardous liquid and insulation, use.
In sum, but glass fiber mica alloy heat generating wire cable of the present invention makes full use of the heat generation characteristic and the prehensile characteristics of electric wire, processing method by the processing electric wire, produce single-phase or the three-phase glass fiber mica alloy heat generating wire cable by sophisticated equipment, can be in field extensive uses such as national defence, scientific research, industry, agriculturals, promptly can be applicable to the field that metal electric heating tube is used, can also be applied to the field that metal electric heating tube can not relate to, therefore very practical.
Claims (6)
1. glass fiber mica alloy heat generating wire cable, this heat generating wire cable comprises at least: a heating line (10), be coated on the outer insulating barrier (20) of heating line (10), be set in the outer screen (30) of insulating barrier (20), it is characterized in that:
Described heating line (10) is made up of plain conductor (11), and this plain conductor (11) also is connected with power line;
Described insulating barrier (20) is formed by being coated on the outer inner insulating layer (21,22,23) of heating line (10) and being coated on the outer external insulation layer (24) of screen (30);
Described inner insulating layer divides three layers, by the fiberglass braided layer of ground floor; Second layer mica tape braid; Triplex glass fibrage layer is made;
Described external insulation layer is made by fiberglass braided layer, polytetrafluoroethylene, perfluoroethylene-propylene or fluorubber.
2. glass fiber mica alloy heat generating wire cable as claimed in claim 1, it is characterized in that: described heating line (10) also comprises, be fixedly installed on the not heating-wire (12) at plain conductor (11) two ends, this not an end of heating-wire (12) be connected with plain conductor (11) by pad (13), the other end is connected with power line.
3. glass fiber mica alloy heat generating wire cable as claimed in claim 1 is characterized in that: described heating line (10) adopts constantan wire, manganese-copper filament or Cr
20Ni
80Silk is done plain conductor (11).
4. glass fiber mica alloy heat generating wire cable as claimed in claim 1 is characterized in that: described insulating barrier (20) adopts one of following material, fiberglass braided layer, mica tape braid, polytetrafluoroethylene, perfluoroethylene-propylene, fluorubber.
5. glass fiber mica alloy heat generating wire cable as claimed in claim 1 is characterized in that: described screen (30) adopts one of following material, copper wire braid, silver-gilt copper wire braid.
6. glass fiber mica alloy heat generating wire cable as claimed in claim 1, it is characterized in that: described heat generating wire cable comprises, three heating lines (10), be coated on three heating lines (10) outer inner insulating layer (21,22,23) and screens (30) respectively, three lines (10) that generate heat that will coat behind inner insulating layer (21,22,23) and the screen (30) are wrapped up in the external insulation layer (24) that is combined in wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02137670 CN1272984C (en) | 2002-10-29 | 2002-10-29 | Glass fiber mica alloy heat generating wire cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02137670 CN1272984C (en) | 2002-10-29 | 2002-10-29 | Glass fiber mica alloy heat generating wire cable |
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|---|---|
| CN1494357A CN1494357A (en) | 2004-05-05 |
| CN1272984C true CN1272984C (en) | 2006-08-30 |
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|---|---|---|---|
| CN 02137670 Expired - Fee Related CN1272984C (en) | 2002-10-29 | 2002-10-29 | Glass fiber mica alloy heat generating wire cable |
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| CN (1) | CN1272984C (en) |
Cited By (3)
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| CN100498074C (en) * | 2007-07-28 | 2009-06-10 | 江苏耐安特种电缆有限公司 | High voltage ignition wire and method of manufacture |
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| Publication number | Publication date |
|---|---|
| CN1494357A (en) | 2004-05-05 |
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