CN105139929A - Mineral-insulated flexible fire-proof cable coated by high-strength non-magnetic corrugated stainless steel sheath - Google Patents
Mineral-insulated flexible fire-proof cable coated by high-strength non-magnetic corrugated stainless steel sheath Download PDFInfo
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- CN105139929A CN105139929A CN201510606128.7A CN201510606128A CN105139929A CN 105139929 A CN105139929 A CN 105139929A CN 201510606128 A CN201510606128 A CN 201510606128A CN 105139929 A CN105139929 A CN 105139929A
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Abstract
The invention discloses a mineral-insulated flexible fire-proof cable coated by a high-strength non-magnetic corrugated stainless steel sheath. The cable includes a wire which is arranged inside a cable-making lapping layer and is cladded with an insulation layer, inorganic heat-insulating fire-proof filling material which are filled between the insulation layer and the cable-making cladding layer, a stainless steel sheath which coats the outer circumferential surface of the cable-making cladding layer, and a fire-proof coating layer which is sprayed on the outer circumferential surface of the stainless steel sheath. The cable of the invention has the advantages of fire-proofness of mineral-insulated cables, simple production technology, flexibility in any-length section production, variable specifications, high strength and excellent flexibility, and convenient installation and laying.
Description
Technical field
The present invention relates to fireproof cable, especially relates to high-intensity non-magnetic ripple stainless steel sheath mineral insulating flexible fireproof cable.
Background technology
At present, the fireproof cable structure manufactured both at home and abroad mainly contains: 1, invent the MI type mineral insulated cable (i.e. the fire-resistant copper pipe wiring of BTT) the nineties in 19th century; 2, the coated fire-resisting cable of the wrapped insulating polymeric material of fireproof mica (NH type); 3, fire prevention aluminum pipe separation sleeve type fireproof cable (NG type).
For MI type mineral insulated cable, owing to adopting, copper sheath makes copper consumption increase, production cost increases; Moreover adopting drawing copper tubes technical matters complicated, equipment investment is large; Be difficult to realize major diameter in addition, large length section is produced, there is cable hard especially simultaneously, make laying installation, joint all cumbersome.
For the coated fire-resisting cable of the wrapped insulating polymeric material of fireproof mica (NH type), although manufacturing process is simple and cost is lower, but the security reliability under 750 DEG C of-800 DEG C of flames is stable not as good as MI type mineral insulated cable, electrical breakdown rate is very high, is therefore unsuitable for the place that safety requirements is higher.
For fire prevention aluminum pipe separation sleeve type fireproof cable (NG type), owing to adopting aluminium cover, the fusing point of aluminium only has 660 DEG C, so refractory temperature can not be too high, and suppleness is poor, installs inconvenient.
Summary of the invention
The object of the invention is to provide a kind of high-intensity non-magnetic ripple stainless steel sheath mineral insulating flexible fireproof cable.
For achieving the above object, the present invention takes following technical proposals:
High-intensity non-magnetic ripple stainless steel sheath mineral insulating flexible fireproof cable of the present invention, comprise and be arranged on the wire that stranding lapping layer is interior, be surrounded with insulating barrier, be filled in the inorganic thermal insulation fire-proof packing between described insulating barrier and stranding lapping layer, be coated on the stainless steel sheath of stranding lapping layer outer peripheral face, be sprayed on the fireproof paint layer of described stainless steel sheath outer peripheral face;
Described insulating barrier is 0.08 ~ 0.10mm alkali-free glass fibre band by thickness, and within it, outer surface thickness is 0.10 ~ 0.30mm mixing glue-line, and makes through 180 DEG C of 10 ~ 20min that are heating and curing;
The epoxy glue that described mixing glue-line uses, according to mass percent, be be equal to or greater than 500 object glass dust 5% ~ 15% by granularity, granularity is equal to or greater than the modifying epoxy resin by organosilicon tackifier of 320 object ceramic powders 15% ~ 25%, 5%, the porcelain SiClx glue of 65% ~ 70%, roll make through mixing;
Described inorganic thermal insulation fire-proof packing is made up of the glass fiber of filament diameter 2-30 micron;
Described stainless steel sheath is bellows structure.
During actual manufacture, the epoxy glue (according to mass percent) that mixing glue-line in fireproof cable of the present invention uses, can equal 500 object glass dust 5% by granularity, granularity equals the modifying epoxy resin by organosilicon tackifier of 320 object ceramic powders 25%, 5%, the porcelain SiClx glue of 65% rolls make through mixing; Inorganic thermal insulation fire-proof packing is made up of the glass fiber of filament diameter 2 microns; For the manufacture of single core fireproof cable insulating barrier.
During actual manufacture, the epoxy glue (according to weight percent meter) that mixing glue-line in fireproof cable of the present invention uses, also can equal 550 object glass dust 15% by granularity, granularity equals the modifying epoxy resin by organosilicon tackifier of 370 object ceramic powders 20%, 5%, the porcelain SiClx glue of 60%, roll through mixing and make; Inorganic thermal insulation fire-proof packing is made up of the glass fiber of filament diameter 18 microns; For the manufacture of control and signal fireproof cable insulating barrier.
During actual manufacture, the epoxy glue (according to weight percent meter) that mixing glue-line in fireproof cable of the present invention uses, also can equal 600 object glass dust 10% by granularity, granularity equals the modifying epoxy resin by organosilicon tackifier of 420 object ceramic powders 15%, 5%, the porcelain SiClx glue of 70%, roll through mixing and make; Inorganic thermal insulation fire-proof packing is made up of the glass fiber of filament diameter 30 microns; For the manufacture of multicore low pressure fire proof power cable core insulating barrier.
The invention has the advantages that the fire performance with mineral insulated cable, production technology is simple, and random length section is produced, multi-size, and has high strength and good pliability, and mounting and installation is convenient.Its beneficial effect is embodied in following several respects:
1, insulating barrier fusing point is 1375 DEG C, and heatproof up to 1020 DEG C, owing to not containing organic insulating polymeric material, thus can be got rid of the generation of carbon granules, improve resistance to electrical stability.Meet the simple fire resistance test (C class) of National Fire design specification standard, that is:, under applying rated voltage for fire 950 DEG C, 180min flame combustion sample, electrical current 3A fuse does not fuse; Water spray fire resistance test (W class), that is: for fire 650 DEG C, add Water spray 15min flame combustion sample and apply under rated voltage, electrical current 3A fuse does not fuse; Band impacts fire resistance test (Z class), that is:, under applying rated voltage for fire 950 DEG C, applying mechanical shock by fiery 15min flame combustion sample, electrical current 3A fuse does not fuse.
Need not poling separately when 2, laying, directly lay, and there is good fire prevention, waterproof, protecting against shock function.
3, there is protection against rodents, anti-ant, radiation proof function, cable good stability, long service life.
4, temperature resistant grade is high, and combined closure system is large, and anti-overload ability is strong, and fail safe is high.
5, good corrosion resistance, all has antisepsis to chemical substances such as general soda acids.
6, mechanical strength is high, and the sheath of corrugated stainless steel tubing structure has good mechanical and physical performance, even if the distortion that cable occurs to a certain degree still can normally work, and also can not damage its electrical property when being subject to violent mechanical damage; Meanwhile, nonmagnetic stainless steel sheath makes wire to produce vortex phenomenon, improves cable combined closure system.
Accompanying drawing explanation
Fig. 1 is the section structure schematic diagram of fireproof cable of the present invention.
Embodiment
As shown in Figure 1, high-intensity non-magnetic ripple stainless steel sheath mineral insulating flexible fireproof cable of the present invention, comprise and be arranged on three wires 3 that stranding lapping layer 1 is interior, be surrounded with insulating barrier 2, be filled in the inorganic thermal insulation fire-proof packing 4 between insulating barrier 2 and stranding lapping layer 1, be coated on the ripple stainless steel sheath 5 of stranding lapping layer 1 outer peripheral face and be sprayed on the fireproof paint layer 6 of ripple stainless steel sheath 5 outer peripheral face;
Insulating barrier 2 is 0.08 ~ 0.10mm alkali-free glass fibre band and the thickness being coated in inside and outside of alkali-free glass fibre band by thickness is that 0.10 ~ 0.30mm mixing glue-line is made through 180 DEG C of 10 ~ 20min that are heating and curing, the epoxy glue that uses of mixing glue-line by mass percentage, equals 500 object glass dust 5% by granularity, granularity equals the modifying epoxy resin by organosilicon tackifier of 320 object ceramic powders 25%, 5%, the porcelain SiClx glue of 65% rolls through mixing and make.Insulating barrier 2 is combined closely by mixing glue-line with wire 3, decreases the air gap between insulating barrier 2 and wire 3, improves the dielectric strength of finished cable, temperature resistant grade and mechanical strength.
Inorganic thermal insulation fire-proof packing 4 is made up of the glass fiber of filament diameter 2 microns, and insulating barrier can be protected not burnt, and plays fireproofing function again simultaneously;
Fireproof paint layer 6 can adopt far infrared curing technology, spraying and bellows shaping is integrally worked continuously, makes outer coat and metallic sheath strong bonded, does not melt, does not fire, form inflatable anti-flaming thermal-insulation fireprotection layer under flame.Ripple stainless steel sheath 5 can utilize PLC to control screw thread outsourcing, adopts ultrasonic detection technology, by stainless steel band welding, ripple shaping, presses and integrally carries out continuously, ensure that the sealing of welding.
Certainly, when reality manufactures, select in the scope that in the selection of mixing glue-line epoxy glue proportioning used, fire-proof packing, fireproof paint layer 6, the proportioning of coating can be announced in the present invention, also can reach its flameproof effect.
As: mixing glue-line the epoxy glue that uses by mass percentage, also can equal 550 object glass dust 15% by granularity, granularity equals the modifying epoxy resin by organosilicon tackifier of 370 object ceramic powders 20%, 5%, the porcelain SiClx glue of 60%, roll through mixing and make.Inorganic thermal insulation fire-proof packing 4 also can be made up of the glass fiber of filament diameter 18 microns.
Or: the epoxy glue that mixing glue-line uses by mass percentage, also can equal 600 object glass dust 10% by granularity, granularity equals the modifying epoxy resin by organosilicon tackifier of 420 object ceramic powders 15%, 5%, the porcelain SiClx glue of 70%, rolls make through mixing.Inorganic thermal insulation fire-proof packing 4 also can be made up of the glass fiber of filament diameter 30 microns.
Claims (4)
1. a high-intensity non-magnetic ripple stainless steel sheath mineral insulating flexible fireproof cable, comprise and be arranged on the wire that stranding lapping layer is interior, be surrounded with insulating barrier, be filled in the inorganic thermal insulation fire-proof packing between described insulating barrier and stranding lapping layer, be coated on the stainless steel sheath of stranding lapping layer outer peripheral face, be sprayed on the fireproof paint layer of described stainless steel sheath outer peripheral face; It is characterized in that:
Described insulating barrier is 0.08 ~ 0.10mm alkali-free glass fibre band by thickness, and within it, outer surface thickness is 0.10 ~ 0.30mm mixing glue-line, and makes through 180 DEG C of 10 ~ 20min that are heating and curing;
The epoxy glue that described mixing glue-line uses, according to mass percent, be be equal to or greater than 500 object glass dust 5% ~ 15% by granularity, granularity is equal to or greater than the modifying epoxy resin by organosilicon tackifier of 320 object ceramic powders 15% ~ 25%, 5%, the porcelain SiClx glue of 65% ~ 70%, roll make through mixing;
Described inorganic thermal insulation fire-proof packing is made up of the glass fiber of filament diameter 2-30 micron;
Described stainless steel sheath is bellows structure.
2. high-intensity non-magnetic ripple stainless steel sheath mineral insulating flexible fireproof cable according to claim 1, is characterized in that:
The epoxy glue that described mixing glue-line uses, according to mass percent, be equal 500 object glass dust 5% by granularity, granularity equals the modifying epoxy resin by organosilicon tackifier of 320 object ceramic powders 25%, 5%, the porcelain SiClx glue of 65%, roll through mixing and make;
Described inorganic thermal insulation fire-proof packing is made up of the glass fiber of filament diameter 2 microns.
3. high-intensity non-magnetic ripple stainless steel sheath mineral insulating flexible fireproof cable according to claim 1, is characterized in that:
The epoxy glue that described mixing glue-line uses, according to percentage by weight, equals 550 object glass dust 15% by granularity, granularity equals the modifying epoxy resin by organosilicon tackifier of 370 object ceramic powders 20%, 5%, the porcelain SiClx glue of 60%, rolls make through mixing;
Described inorganic thermal insulation fire-proof packing is made up of the glass fiber of filament diameter 18 microns.
4. high-intensity non-magnetic ripple stainless steel sheath mineral insulating flexible fireproof cable according to claim 1, is characterized in that:
The epoxy glue that described mixing glue-line uses, according to percentage by weight, equals 600 object glass dust 10% by granularity, granularity equals the modifying epoxy resin by organosilicon tackifier of 420 object ceramic powders 15%, 5%, the porcelain SiClx glue of 70%, rolls make through mixing;
Described inorganic thermal insulation fire-proof packing is made up of the glass fiber of filament diameter 30 microns.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510606128.7A CN105139929B (en) | 2015-09-22 | 2015-09-22 | Mineral-insulated flexible fire-proof cable coated by high-strength non-magnetic corrugated stainless steel sheath |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510606128.7A CN105139929B (en) | 2015-09-22 | 2015-09-22 | Mineral-insulated flexible fire-proof cable coated by high-strength non-magnetic corrugated stainless steel sheath |
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| CN105139929A true CN105139929A (en) | 2015-12-09 |
| CN105139929B CN105139929B (en) | 2017-01-25 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128608A (en) * | 2016-08-24 | 2016-11-16 | 宁波华众和创工业设计有限公司 | A kind of high-strength flexible fireproof cable and preparation method thereof |
| CN106653143A (en) * | 2016-12-26 | 2017-05-10 | 上海申通电缆厂有限公司 | Flexible insulation fireproof cable with metal sheath |
| EP3452842A4 (en) * | 2016-06-29 | 2020-05-27 | TAE Technologies, Inc. | Mineral insulated combined flux loop and b-dot wire |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1710670A (en) * | 2005-07-20 | 2005-12-21 | 江苏远东集团有限公司 | Fire-retardant electric wire |
| US20100266781A1 (en) * | 2009-04-16 | 2010-10-21 | Grzegorz Jan Kusinski | Structural Components for Oil, Gas, Exploration, Refining and Petrochemical Applications |
| CN101967335A (en) * | 2010-10-09 | 2011-02-09 | 青岛爱尔家佳新材料有限公司 | Breakdown-resistant insulating paint |
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2015
- 2015-09-22 CN CN201510606128.7A patent/CN105139929B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1710670A (en) * | 2005-07-20 | 2005-12-21 | 江苏远东集团有限公司 | Fire-retardant electric wire |
| US20100266781A1 (en) * | 2009-04-16 | 2010-10-21 | Grzegorz Jan Kusinski | Structural Components for Oil, Gas, Exploration, Refining and Petrochemical Applications |
| CN101967335A (en) * | 2010-10-09 | 2011-02-09 | 青岛爱尔家佳新材料有限公司 | Breakdown-resistant insulating paint |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3452842A4 (en) * | 2016-06-29 | 2020-05-27 | TAE Technologies, Inc. | Mineral insulated combined flux loop and b-dot wire |
| US10886031B2 (en) | 2016-06-29 | 2021-01-05 | Tae Technologies, Inc. | Mineral insulated combined flux loop and B-dot wire |
| AU2017290686B2 (en) * | 2016-06-29 | 2022-12-22 | Tae Technologies, Inc. | Mineral insulated combined flux loop and B-dot wire |
| CN106128608A (en) * | 2016-08-24 | 2016-11-16 | 宁波华众和创工业设计有限公司 | A kind of high-strength flexible fireproof cable and preparation method thereof |
| CN106653143A (en) * | 2016-12-26 | 2017-05-10 | 上海申通电缆厂有限公司 | Flexible insulation fireproof cable with metal sheath |
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| CN105139929B (en) | 2017-01-25 |
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