CN204680436U - A kind of ultralow-temperature cable - Google Patents
A kind of ultralow-temperature cable Download PDFInfo
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- CN204680436U CN204680436U CN201520273835.4U CN201520273835U CN204680436U CN 204680436 U CN204680436 U CN 204680436U CN 201520273835 U CN201520273835 U CN 201520273835U CN 204680436 U CN204680436 U CN 204680436U
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Abstract
The utility model discloses a kind of ultralow-temperature cable, it is characterized in that, comprise the restrictive coating of master core and parcel master core, described master core is 18, described master core comprises conductor and insulating barrier, described insulating barrier is the layer of polyurethane that the 0.2mm-0.5mm be extruded on conductor is thick, described wherein 6 master cores are evenly distributed on same circumferentially formation core internal layer, described core internal layer center is provided with strengthening core, described remaining 12 master cores are evenly distributed on another and circumferentially form core skin, heat-insulation layer is provided with between described core internal layer and core skin and between core skin and restrictive coating, described restrictive coating is the layer of polyurethane that 0.6mm-0.7mm is thick.Ultralow-temperature cable of the present utility model resists cold, tear-proof, and under low temperature, cable is soft, is convenient to install connect.
Description
Technical field
The utility model relates to field of cable technology, particularly relates to a kind of ultralow-temperature cable.
Background technology
Along with the development of China's modernization construction, the requirement of production process to industrial equipment is more and more higher, especially requires that equipment possesses higher precision.Equipment is in long-term use procedure, and heating problem is can hardly be avoided, and because generating heat, the phenomenon causing precision to reduce becomes increasingly conspicuous, and liquid nitrogen is as a kind of common cooling material, and the use of liquid nitrogen is more and more extensive.The temperature of liquid nitrogen is-196 DEG C, and this just requires that the cable that contacts with it also can regular supply electric energy and transmission of electric signals under the environment of-196 DEG C, ensures that liquid nitrogen is produced and use procedure is implemented.
At present, the temperature range that common cryocable bears is-40 DEG C--60 DEG C, under applying it to the condition of-196 DEG C, insulating barrier and restrictive coating hardening, become fragile even occur ftracture phenomenon, bring potential safety hazard.
Summary of the invention
In order to solve the problems of the prior art, the purpose of this utility model is to provide a kind of ultralow-temperature cable used in liquid nitrogen, and ultralow-temperature cable of the present utility model resists cold, tear-proof, and under low temperature, cable is soft, is convenient to install connect.
To achieve these goals, the technical solution adopted in the utility model: a kind of ultralow-temperature cable, it is characterized in that, comprise the restrictive coating of master core and parcel master core, described master core is 18, described master core comprises conductor and insulating barrier, described insulating barrier is the layer of polyurethane that the 0.2mm-0.5mm be extruded on conductor is thick, described wherein 6 master cores are evenly distributed on same circumferentially formation core internal layer, described circle center is provided with strengthening core, described remaining 12 master cores are evenly distributed on another and circumferentially form core skin, heat-insulation layer is provided with between described core internal layer and core skin and between core skin and restrictive coating, described restrictive coating is the layer of polyurethane that 0.6mm-0.7mm is thick.
Wherein, to be that copper free wire is stranded form described conductor.
Wherein, the temperature range that described insulating barrier bears is-200 DEG C-80 DEG C.
Wherein, described strengthening core is tension galvanized steel wire rope.
Wherein, the temperature range that described restrictive coating bears is-200 DEG C-80 DEG C.
Wherein, described heat-insulation layer is that knit nylon forms.
Compared with prior art, the beneficial effect that the utility model realizes: ultralow-temperature cable of the present utility model online in-core layer center arranges strengthening core, strengthening core is tension galvanized steel wire rope, and first the pulling force be applied on cable acts on strengthening core, adds the resistance to compression tensile property of cable; Ultralow-temperature cable of the present utility model online in-core layer and core are outer and core is outer and arrange heat-insulation layer between restrictive coating, and the heat that the conductor in master core is produced in galvanization can not distribute, and improve the cold tolerance of cable; The insulating barrier of the utility model ultralow-temperature cable and restrictive coating adopt low temperature resistant polyurethane material, under the condition of-200 DEG C, insulating barrier and restrictive coating still possess good flexibility, avoid cable in use to occur cracking, extend the useful life of cable.
Accompanying drawing explanation
The utility model is further described below in conjunction with the drawings and specific embodiments:
Fig. 1 is the structural representation of the utility model ultralow-temperature cable.
Embodiment
As shown in Figure 1, a kind of ultralow-temperature cable, it is characterized in that, comprise the restrictive coating 2 of master core 1 and parcel master core 1, described master core 1 is 18, described master core 1 comprises conductor 3 and insulating barrier 4, described insulating barrier 4 is for being extruded in the thick layer of polyurethane of 0.2mm-0.5mm on conductor 3, described wherein 6 master cores 1 are evenly distributed on same circumferentially formation core internal layer 5, described circle center is provided with strengthening core 7, described remaining 12 master cores 1 are evenly distributed on another and circumferentially form core skin 8, heat-insulation layer 6 is provided with between described core internal layer 5 and core skin 8 and between core outer 8 and restrictive coating 2, described restrictive coating 2 is the layer of polyurethane that 0.6mm-0.7mm is thick.
Wherein, described conductor 3 forms for copper free wire is stranded.
Wherein, the temperature range that described insulating barrier 4 bears is-200 DEG C-80 DEG C.
Wherein, described strengthening core 7 is tension galvanized steel wire rope.
Wherein, the temperature range that described restrictive coating 2 bears is-200 DEG C-80 DEG C.
Wherein, described heat-insulation layer 6 forms for knit nylon.
As shown in Figure 1, ultralow-temperature cable comprises the restrictive coating 2 of master core 1 and parcel master core 1, described master core 1 is 18, wherein 6 master cores 1 form core internal layer 5, 12 remaining master cores 1 form core skin 8, core internal layer 5 center is provided with strengthening core 7, larger active force can be born, improve the compression and tensile strength of cable, heat-insulation layer 6 is provided with between core internal layer 5 and core skin 8 and between core outer 8 and restrictive coating 2, heat-insulation layer 6 forms for knit nylon, not only possesses the effect of insulation, prevent the heat loss of the conductor 3 energising generation in master core 1 to external environment, also make the construction of cable compacter, improve the roundness of cable, prevent from producing because of space between master core 1 loosening, core is even caused to tear.
Ultralow-temperature cable of the present utility model online in-core layer center arranges strengthening core, and strengthening core is tension galvanized steel wire rope, and first the pulling force be applied on cable acts on strengthening core, adds the resistance to compression tensile property of cable; Ultralow-temperature cable of the present utility model online in-core layer and core are outer and core is outer and arrange heat-insulation layer between restrictive coating, and the heat that the conductor in master core is produced in galvanization can not distribute, and improve the cold tolerance of cable; Insulating barrier and restrictive coating are adopted low temperature resistant polyurethane material by ultralow-temperature cable of the present utility model, under the condition of-200 DEG C, still possess good flexibility, avoid cable in use to occur cracking, extend the useful life of cable.
Above-mentioned embodiment is exemplary, is to enable those skilled in the art understand this patent better, can not be interpreted as it is restriction this patent being comprised to scope; As long as according to this patent disclose any equivalent change done or the modification of spirit, all fall into the scope that this patent comprises.
Claims (6)
1. a ultralow-temperature cable, it is characterized in that, comprise the restrictive coating (2) of master core (1) and parcel master core (1), described master core (1) is 18, described master core (1) comprises conductor (3) and insulating barrier (4), described insulating barrier (4) is for being extruded in the thick layer of polyurethane of 0.2mm-0.5mm on conductor (3), described wherein 6 master cores (1) are evenly distributed on same circumferentially formation core internal layer (5), described core internal layer (5) center is provided with strengthening core (7), described remaining 12 master cores (1) are evenly distributed on another and circumferentially form core skin (8), heat-insulation layer (6) is provided with between described core internal layer (5) and core skin (8) and between core skin (8) and restrictive coating (2), described restrictive coating (2) is the thick layer of polyurethane of 0.6mm-0.7mm.
2. a kind of ultralow-temperature cable as claimed in claim 1, is characterized in that, described conductor (3) forms for copper free wire is stranded.
3. a kind of ultralow-temperature cable as claimed in claim 1, is characterized in that, the temperature range that described insulating barrier (4) bears is-200 DEG C-80 DEG C.
4. a kind of ultralow-temperature cable as claimed in claim 1, is characterized in that, described strengthening core (7) is tension galvanized steel wire rope.
5. a kind of ultralow-temperature cable as claimed in claim 1, is characterized in that, the temperature range that described restrictive coating (2) bears is-200 DEG C-80 DEG C.
6. a kind of ultralow-temperature cable as claimed in claim 1, is characterized in that, described heat-insulation layer (6) forms for knit nylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520273835.4U CN204680436U (en) | 2015-04-30 | 2015-04-30 | A kind of ultralow-temperature cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520273835.4U CN204680436U (en) | 2015-04-30 | 2015-04-30 | A kind of ultralow-temperature cable |
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| Publication Number | Publication Date |
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| CN204680436U true CN204680436U (en) | 2015-09-30 |
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| CN201520273835.4U Active CN204680436U (en) | 2015-04-30 | 2015-04-30 | A kind of ultralow-temperature cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108133771A (en) * | 2017-12-26 | 2018-06-08 | 无锡市明珠电缆有限公司 | A kind of high flexibility tension fire-retardant fireproof shields drag chain cable |
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2015
- 2015-04-30 CN CN201520273835.4U patent/CN204680436U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108133771A (en) * | 2017-12-26 | 2018-06-08 | 无锡市明珠电缆有限公司 | A kind of high flexibility tension fire-retardant fireproof shields drag chain cable |
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