Heating cable
Technical field
The present invention relates to a kind of cable, specifically is the heating cable that needs such as a kind of road, pipeline, heating of tank body ice and breeding green that is applied to cold district, automobile engine, house are warming, heat.
Background technology
Along with people's lives improve day by day, the performance and the use of heating cable are had higher requirement, on particularly energy-conservation, safety, the environmental issue; In the heating cable in the past, adopt Nb-Al alloy to make conductor, polyvinyl chloride is made the heating cable of insulating barrier and jacket layer; Through use after a while, the heating cable that Nb-Al alloy is made conductor heats up slowly, needs the time longer; Power consumption increases, and safeguard protection and anti-aging degree are not high, have passed through nearly 1 year test afterwards; Invented now and adopted chromium, aluminium alloy or chromium, nickel alloy to make the heating cable of conductor, its heating is fast, heat is stable, has reached energy-saving and cost-reducing best level; Aspect security control, also be greatly improved in addition, we have done following improvement: insulating barrier adopts polyvinyl chloride or crosslinked polyethylene or fluoroplastics or silicon rubber, and jacket layer adopts polyvinyl chloride or fluoroplastics or silicon rubber, and insulating coefficient improves greatly; On product structure; Increase double earth wire or single ground wire simultaneously, increased copper, aluminium foil and wrapped shielding or structures such as copper mesh or half copper-clad band shielding entirely, installation and control, the earth leakage protective of heating cable; Safety assurance reliably is provided more, conclude weak point have following some:
1. safety guarantee: the earth leakage protective degree is not high;
2. installation and control is used: temperature control is complicated, installs inconvenient;
3. durable: insulation and outer jacket easy ageing, cause short circuit;
4. installing space: it is big to occupy the limit space, is unfavorable for that large tracts of land lays;
5. energy consumption: it is slow to heat up, and heat utilization ratio is not high.
Summary of the invention
In order to overcome the deficiency of prior art, the present invention provides a kind of earth leakage protective degree high, install and temperature control convenience, temperature stabilization, heating is fast, energy consumption is low, anti-aging, durable in use, be difficult for blowing, take up space less, the heating cable of casual choice of length.
In order to solve the problems of the technologies described above, technical scheme of the present invention is:
A kind of heating cable; Profile is slim long ribbon shape; It adopts ultra-thin chromium aluminium or chrome-nickel steel band to make heating conductor, and wherein: the chromium aluminium percentage by weight of Cr-Al alloy steel band is a chromium: the percentage by weight of aluminium=21: 6 or chrome-nickel steel band chromium nickel is a chromium: nickel=20: 35; The specification of heating conductor is: wide mm * thick mm=3mm~25mm * 0.025mm~0.6mm; At heating conductor outsourcing thickness is 0.3mm~0.5mm insulating barrier; Insulating barrier outsourcing screen; Screen outsourcing thickness is 0.3mm~0.5mm outer jacket; Insulating barrier and outer jacket are flame Retarding Polyvinyl Chloride Plastics or crosslinked polyethylene plastic or fluoroplastics or silicon rubber plastics; Between screen and the outer jacket ground wire is housed, polymeric barrier layer materials thickness is that the multiple film aluminum foil material of 0.02~0.05mm or the multiple film copper foil material of 0.01~0.05mm or specification are 0.1~0.12 braiding copper mesh, and ground wire adopts diameter 7/0.2mm copper stranded conductor; The heating cable gross thickness is 1.4mm~1.7mm.
Heating cable of the present invention has the product of 7 different structures, and division is following:
1. be a kind of heating cable with double earth wire, shielding, the cable profile is slim long band, the heating conductor outsourcing insulation; One side of insulating barrier is equipped with the disjunctor Ground wire with insulation ocver; Insulating barrier outsourcing screen, screen outsourcing outer jacket is equipped with ground wire between outer jacket and screen.
2. be a kind of heating cable of the two heating conductors with a ground wire, profile is slim long band, and two heating conductors respectively wrap insulating barrier, insulating barrier outward and close the multiple film aluminum foil shielded of bag outward, between insulating barrier and screen, ground wire are installed, at screen outsourcing outer jacket.
3. be a kind of heating cable with ground wire, profile is slim long band, the heating conductor outsourcing insulation, and insulating barrier outsourcing screen, screen outsourcing outer jacket is installed ground wire between screen and outer jacket.
4. be a kind of heating cable with the copper mesh shielding, profile is slim long band, heating conductor outsourcing insulation, the outer full copper-clad net woven shield of insulating barrier, copper mesh woven shield outsourcing outer jacket.
5. be the heating cable of the multiple film Copper Foil screen of a kind of band half bag, profile is slim long band, the heating conductor outsourcing insulation, and insulating barrier outsourcing outer jacket, the multiple film Copper Foil of one side dress between insulating barrier and outer jacket is made half screen.
6. be a kind of not with the heating cable of ground wire, profile is slim long band, heating conductor outsourcing insulation, insulating barrier outsourcing outer jacket.
7. be a kind of not with the heating cable of ground wire and shielding, product structure comprises: the heating conductor outsourcing insulation.
The advantage of the present invention and prior art comparison is:
1. safety guarantee aspect: adopt polyvinyl chloride or crosslinked polyethylene or fluoroplastics or silicon rubber to insulate, increase metallic shield and ground wire are made ground protection, and coefficient of safety improves greatly.
2. the durable aspect of performance: adopt chromium, aluminium or chromium, nickel alloy conductor, withstand voltage height, heating are fast, the material of insulation and outer jacket by use under the normal condition, ageing-resistant, leakproof equal and the building life-span is equal to.
3. installation and control aspect: choose length during operation, cold line, the good both positive and negative polarity of the same termination of hot line reduce the complexity that temperature control is installed, and install probe and temperature controller, i.e. the required temperature of scalable oneself can round-the-clock automatic constant-temperature, need not to worry.
4. installing space aspect: because be flat type heating cable, it can be adjacent to installed surface, and to occupy the limit space few; Can also large tracts of land lay etc.
5. energy efficient aspect: flat type heating cable heat transfer process face width; Add chromium, aluminium or chromium, nickel is heating conductor; Generate heat fast, withstand voltage height and temperature stabilization, temperature control is accurate, lacks energy consumption so can reduce time 50% joint when under equal conditions being heated to equal temperature than niobium aluminium heating cable.
Description of drawings
Fig. 1 is the structural representation of facing of a kind of heating cable with double earth wire, shielding of the present invention.
Fig. 2 is the side-looking structural representation of a kind of heating cable with double earth wire, shielding of the present invention.
Among the figure: ultra-thin Cr-Al alloy steel band conductor 1, insulating barrier 2, insulating barrier disjunctor ground wire 3, screen 4, ground wire 5, outer jacket 6.
Fig. 3 is the structural representation of facing of a kind of heating cable with a ground wire, two heating conductors of the present invention.
Fig. 4 is the side-looking structural representation of a kind of heating cable with a ground wire, two heating conductors of the present invention.
Among the figure: ultra-thin Cr-Al alloy steel band two-conductor 1, extruded insulation layer 2, ground wire 3, screen 4, outer jacket 5 respectively.
Fig. 5 is the structural representation of facing of a kind of heating cable with ground wire, shielding of the present invention.
Fig. 6 is the side-looking structural representation of a kind of heating cable with ground wire, shielding of the present invention.
Among the figure: ultra-thin Cr-Al alloy steel band conductor 1, insulating barrier 2, screen 3, outer jacket 4, ground wire 5.
Fig. 7 is the structural representation of facing of a kind of heating cable with copper mesh shielding of the present invention.
Fig. 8 is the side-looking structural representation of a kind of heating cable with copper mesh shielding of the present invention.
Among the figure: ultra-thin Cr-Al alloy steel band conductor 1, insulating barrier 2, braiding copper mesh screen 3, outer jacket 4.
Fig. 9 be the multiple film copper strips shielding of a kind of band of the present invention half bag heating cable face structural representation.
Figure 10 is the side-looking structural representation of the heating cable of the multiple film copper strips shielding of a kind of band half bag of the present invention.
Among the figure: ultra-thin Cr-Al alloy steel band conductor 1, insulating barrier 2, multiple film copper strips screen 3, outer jacket 4.
Figure 11 is that the present invention is a kind of not with the structural representation of facing of the heating cable of ground wire.
Figure 12 is that the present invention is a kind of not with the side-looking structural representation of the heating cable of ground wire.
Among the figure: ultra-thin Cr-Al alloy steel band conductor 1, insulating barrier 2, outer jacket 3.
Figure 13 is that the present invention is a kind of not with the structural representation of facing of the heating cable of ground wire and shielding.
Figure 14 is that the present invention is a kind of not with the side-looking structural representation of the heating cable of ground wire and shielding.
Among the figure: ultra-thin Cr-Al alloy steel band conductor 1, insulating barrier 2.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.But need to prove that embodiment does not constitute the restriction that the present invention is required protection range.
Embodiment 1
Like Fig. 1, shown in Figure 2, be a kind of heating cable with double earth wire, shielding.
With ground wire 5, outer jacket 6 between single ultra-thin chromium aluminium or chrome-nickel steel band conductor 1, inner insulating layer 2, insulating barrier disjunctor ground wire 3, shielding 4, screen and the outer jacket.
Contain chromium 21%, aluminium 6% with wide mm * thick mm=25 * 0.02 respectively or contain chromium 20%, nickeliferous 35% alloyed steel strip is made conductor 1; Adopting thickness is that flame Retarding Polyvinyl Chloride Plastics or crosslinked polyethylene plastic or fluoroplastics or the silicon rubber plastics of 0.3~0.5mm are made inner insulating layer 2; At the other disjunctor of insulating barrier diameter is installed and is made ground wire 3 for the 7/0.2mm copper stranded conductor; Adopting thickness is that multiple film aluminum foil material of 0.02~0.05mm or the multiple film Copper Foil of 0.01~0.05mm are made screen 4; Adopt diameter to make ground wire 5 for the 7/0.2mm copper stranded conductor, adopting thickness is that flame Retarding Polyvinyl Chloride Plastics or fluoroplastics or the silicon rubber plastics of 0.3~0.5mm are made outer jacket 6.
Making step is:
1) gluing.Silica gel is evenly coated on the metal steel band, and the about individual layer 0.03mm of gluing thickness requires smoothly even initial line not of gluing;
2) extruded insulation layer.Use plastic extruding machine, insulating material is extruded on the metal steel band at 1 place, the required thickness uniform outer surface is smooth, at the other dress of insulation disjunctor Ground wire with insulation ocver.
3) process detects.Detect with the spark machine overall process.
4) take-up, survey break-make.Detect resistance with the full section of resistance meter, judges qualified after, the commentaries on classics next procedure.
5) go up dish, powder coating, vertical bag screen.(also can between insulating barrier and screen, in vertical bag screen, ground wire be installed when needing)
6) squeeze outer jacket, dress ground wire.Use plastic extruding machine, sheath material is extruded on the screen, ground wire is installed simultaneously between screen and outer jacket, the required thickness uniform outer surface is smooth.
7) lettering.Use ink jet numbering machine on product, to edit by customer requirements.
8) take-up, detection, packing, warehouse-in.Wooden drum take-up also detects, and uses the malthoid packaged by plastic film, at last warehouse-in.
Produce qualified products by above-mentioned making step 1-8 point.
Embodiment 2
Like Fig. 3, shown in Figure 4, a kind of heating cable with a ground wire, two heating conductors.
With double ultra-thin chromium aluminium or chrome-nickel steel band conductor 1, insulating barrier 2, ground wire 3, multiple film Copper Foil shielding 4, outer jacket 5.
Respectively with 2 side by side of wide mm * thick mm=4 * 0.05; Contain chromium 21%, aluminium 6% or contain chromium 20%, nickeliferous 35% alloyed steel strip is made conductor 1; Adopting thickness is that flame Retarding Polyvinyl Chloride Plastics or crosslinked polyethylene plastic or fluoroplastics or the silicon rubber plastics of 0.3~0.5mm are made inner insulating layer 2; Make ground wire 3 at the other diameter of installing of insulating barrier for the 7/0.2mm copper stranded conductor; Adopting thickness is that multiple film aluminum foil material of 0.02~0.05mm or the multiple film Copper Foil of 0.01~0.05mm are made screen 4, and adopting thickness is that flame Retarding Polyvinyl Chloride Plastics or fluoroplastics or the silicon rubber plastics of 0.3~0.5mm are made outer jacket 5.
Making step is identical with the making step of embodiment 1.
Embodiment 3
Like Fig. 5, shown in Figure 6, a kind of heating cable with ground wire, shielding.
With ground wire 5 between single ultra-thin chromium aluminium or chrome-nickel steel band conductor 1, inner insulating layer 2, shielding 3, outer jacket 4, screen and the outer jacket.
Contain chromium 21%, aluminium 6% with wide mm * thick mm=10 * 0.05 respectively or contain chromium 20%, nickeliferous 35% alloyed steel strip is made conductor 1; Adopting thickness is that flame Retarding Polyvinyl Chloride Plastics or crosslinked polyethylene plastic or fluoroplastics or the silicon rubber plastics of 0.3~0.5mm are made inner insulating layer 2; Adopting thickness is that multiple film aluminum foil material of 0.02~0.05mm or the multiple film Copper Foil of 0.01~0.05mm are made screen 3; Adopting thickness is that flame Retarding Polyvinyl Chloride Plastics or fluoroplastics or the silicon rubber plastics of 0.3~0.5mm are made outer jacket 4, adopts diameter to make ground wire 5 for the 7/0.2mm copper stranded conductor.
Making step is identical with the making step of embodiment 1.
Embodiment 4
Like Fig. 7, shown in Figure 8, a kind of heating cable with the copper mesh shielding.
With single ultra-thin chromium aluminium or chrome-nickel steel band conductor 1, inner insulating layer 2, shielding 3, outer jacket 4.
Contain chromium 21%, aluminium 6% with wide mm * thick mm=8 * 0.05 respectively or contain chromium 20%, nickeliferous 35% alloyed steel strip is made conductor 1; Adopting thickness is that flame Retarding Polyvinyl Chloride Plastics or crosslinked polyethylene plastic or fluoroplastics or the silicon rubber plastics of 0.3~0.5mm are made inner insulating layer 2; Adopting diameter is that screen 3 is made in 0.1~0.12 copper wire mesh grid, and adopting thickness is that flame Retarding Polyvinyl Chloride Plastics or fluoroplastics or the silicon rubber plastics of 0.3~0.5mm are made outer jacket 4.
Making step is identical with the making step of embodiment 1.
Embodiment 5
Like Fig. 9, shown in Figure 10, the heating cable of the multiple film copper strips shielding of a kind of band half bag.
With single ultra-thin chromium aluminium or chrome-nickel steel band conductor 1, inner insulating layer 2, shielding 3, outer jacket 4.
Contain chromium 21%, aluminium 6% with wide mm * thick mm=8 * 0.05 respectively or contain chromium 20%, nickeliferous 35% alloyed steel strip is made conductor 1; Adopting thickness is that flame Retarding Polyvinyl Chloride Plastics or crosslinked polyethylene plastic or fluoroplastics or the silicon rubber plastics of 0.3~0.5mm are made inner insulating layer 2; Adopt the multiple film Copper Foil of 0.01~0.05mm to make screen 3, adopting thickness is that flame Retarding Polyvinyl Chloride Plastics or fluoroplastics or the silicon rubber plastics of 0.3~0.5mm are made outer jacket 4.
Making step is identical with the making step of embodiment 1.
Embodiment 6
Like Figure 11, shown in Figure 12, a kind of not with the heating cable of ground wire.
With single ultra-thin chromium aluminium or chrome-nickel steel band conductor 1, inner insulating layer 2, outer jacket 3.
Contain chromium 21%, aluminium 6% with wide mm * thick mm=8 * 0.05 respectively or contain chromium 20%, nickeliferous 35% alloyed steel strip is made conductor 1; Adopting thickness is that flame Retarding Polyvinyl Chloride Plastics or crosslinked polyethylene plastic or fluoroplastics or the silicon rubber plastics of 0.3~0.5mm are made inner insulating layer 2, and adopting thickness is that flame Retarding Polyvinyl Chloride Plastics or fluoroplastics or the silicon rubber plastics of 0.3~0.5mm are made outer jacket 3.
Making step is identical with the making step of embodiment 1.
Embodiment 7
Like Figure 13, shown in Figure 14, a kind of not with the heating cable of ground wire and shielding.
With single ultra-thin chromium aluminium or chrome-nickel steel band conductor 1, inner insulating layer 2.
Contain chromium 21%, aluminium 6% with wide mm * thick mm=8 * 0.05 respectively or contain chromium 20%, nickeliferous 35% alloyed steel strip is made conductor 1, adopting thickness is that flame Retarding Polyvinyl Chloride Plastics or fluoroplastics or the silicon rubber plastics of 0.3~0.5mm are made inner insulating layer 2.
Making step is:
1) with the making step 1 of embodiment 1) identical;
2) extruded insulation layer.Use plastic extruding machine, insulating material is extruded on the metal steel band at 1 place, the required thickness uniform outer surface is smooth.
3) with the making step 3 of embodiment 1) identical;
4) with the making step 4 of embodiment 1) identical;
5) with the making step 5 of embodiment 1) identical;
6) lettering.Use ink jet numbering machine on product, to edit by customer requirements.
7) take-up, detection, packing, warehouse-in.Wooden drum take-up also detects, and uses the malthoid packaged by plastic film, at last warehouse-in.
Produce qualified products by above-mentioned making step 1-7 point.