CN211208062U - Environment-friendly fireproof cable based on silicon rubber structure - Google Patents
Environment-friendly fireproof cable based on silicon rubber structure Download PDFInfo
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- CN211208062U CN211208062U CN201922309435.5U CN201922309435U CN211208062U CN 211208062 U CN211208062 U CN 211208062U CN 201922309435 U CN201922309435 U CN 201922309435U CN 211208062 U CN211208062 U CN 211208062U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses an environment-friendly fireproof cable based on a silicone rubber structure, which comprises a first heat-conducting threaded pipe, a shielding cable core, a binding layer, a second heat-conducting threaded pipe and a silicone rubber layer, wherein tensile fibers are arranged in a gap between the shielding cable core and the binding layer; the shielding cable core sequentially comprises a conducting wire, an inner insulating skin, a glass fiber layer, a copper mesh shielding layer and a thermoplastic polyolefin rubber layer from inside to outside, the conducting wire, the inner insulating skin, the glass fiber layer and the copper mesh shielding layer are arranged concentrically, and the conducting wire is positioned at the eccentric position of the thermoplastic polyolefin rubber layer; the binding layer is a woven net structure formed by densely binding composite pull ropes outside the thermoplastic polyolefin rubber layer. The utility model discloses an inside and outside heat conduction screwed pipe heat conduction adopts ceramic silicon rubber as the sheath to adopt eccentric settings's thermoplasticity polyolefin rubber layer, carry out the hot melt and bind and form unique binding layer structure, make the utility model discloses a cable is under the condition that receives high temperature or receive long-time naked light, still can keep preferred electric conductivity.
Description
Technical Field
The utility model relates to a special type cable technical field especially relates to an environment-friendly fireproof cable based on silicon rubber structure.
Background
The cable product specified by the national standard GA306.2-2001 is only suitable for common cables in general occasions, and the maximum operation temperature of a cable conductor does not exceed 90 ℃, so that the cable conductor is not suitable for being used in special occasions such as high-temperature environments. The common fire-resistant cable has complex production process, the product quality is not easy to ensure, and simultaneously, a large amount of polluted gas can be generated in the production process. When the electricity is unbalanced, the long-term overload of the cable can often cause the breakdown of the cable to cause fire and toxic gas, which not only causes people to suffocate and die and prevents firemen from rescuing, but also has great corrosion to modern electrical equipment, and the loss of secondary disasters caused by fire even exceeds the secondary fire caused by direct fire loss in places with more modern facilities.
Therefore, users pay attention to the safety performance and the environmental protection performance of the cable, the existing inorganic fireproof special cable is heavy in weight and poor in flexibility, and the common rubber sheath type cable structure always meets the scientific standard of the modern fireproof and flame-retardant cable at the cost of sheath sacrifice.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an environment-friendly fireproof cable based on a silicon rubber structure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an environment-friendly fireproof cable based on a silicone rubber structure comprises a first heat-conducting threaded pipe, shielding cable cores, binding layers, a second heat-conducting threaded pipe and a silicone rubber layer, wherein the first heat-conducting threaded pipe is located at the position of a circle center, the shielding cable cores are annularly distributed outside the first heat-conducting threaded pipe, the binding layers are bound on the shielding cable cores, the second heat-conducting threaded pipe is tightly sleeved outside the binding layers, the silicone rubber layer is extruded on the second heat-conducting threaded pipe, and tensile fibers are annularly distributed along the first heat-conducting threaded pipe in gaps among a plurality of shielding cable cores and the binding layers;
the single shielding cable core sequentially comprises a conducting wire, an inner insulating skin extruded outside the conducting wire, a glass fiber layer wound outside the inner insulating skin, a copper mesh shielding layer wound outside the glass fiber layer and a thermoplastic polyolefin rubber layer extruded outside the copper mesh shielding layer from inside to outside, the conducting wire, the inner insulating skin, the glass fiber layer and the copper mesh shielding layer are concentrically arranged, the conducting wire is positioned at the eccentric position of the thermoplastic polyolefin rubber layer, the thinnest part of the thermoplastic polyolefin rubber layer is in tangential contact with the outer wall of the first heat-conducting threaded pipe, and the thickest part of the thermoplastic polyolefin rubber layer is in tangential contact with the inner wall of the second heat-conducting threaded pipe;
the binding layer is a woven net structure formed by densely binding a composite pull rope formed by mixing, twisting and weaving glass fiber yarns and aramid fibers outside the thermoplastic polyolefin rubber layer, and after the binding is finished, partial melt of the thermoplastic polyolefin rubber layer is infiltrated into pores of fiber tissues in the woven net by baking at the high temperature of 300 ℃ to finally form a mixed structure of spiral fibers and thermoplastic polyolefin rubber melt;
the first heat conduction threaded pipe and the second heat conduction threaded pipe are spiral corrugated stainless steel threaded pipes.
Preferably, the thread pitch of the first heat-conducting threaded pipe and the second heat-conducting threaded pipe is substantially consistent with the spiral pitch of the stay cord bundle, and both ends of the first heat-conducting threaded pipe and the second heat-conducting threaded pipe are respectively subjected to end sealing treatment. The first heat conduction threaded pipe and the second heat conduction threaded pipe play a role in accelerating heat conduction, and the serious consequence that the electric conductivity is sharply reduced due to overhigh internal temperature of the cable core in the process of firing is avoided.
Preferably, heat conduction oil, liquid nitrogen or organic fluorine refrigerant is filled in the first heat conduction threaded pipe and the second heat conduction threaded pipe, heat conduction media are selected according to different use temperatures of the cable, for example, heat conduction oil is adopted at the temperature of below 200 ℃, organic fluorine refrigerant is adopted at the temperature of 200 ℃ and 600 ℃, and liquid nitrogen is adopted for cooling at the temperature of above 600 ℃.
Preferably, the outer surface of the silicone rubber layer is roasted by segmented flame to obtain a bamboo-shaped ceramic layer, the ceramic layer provides the functions of fire prevention, fire resistance and heat insulation, and the ceramic layer arranged in a segmented mode enables the whole cable to still have certain flexibility and flexibility, so that the cable is more convenient to install during wiring.
Preferably, the stretching resistance fibre specifically is that the cross-section is circular shape single core Kevlar fiber rope, and the stretching resistance fibre provides axial stretching resistance, makes the utility model discloses a cable is in installation, use and dismantlement in-process homoenergetic guarantee mechanical properties's stability.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model adopts a layer of silicon dioxide porcelainized layer generated after the fire-resistant silicon rubber is insulated and burned, which plays the role of insulation between wire cores, and simultaneously, the bamboo-shaped ceramic layer does not influence the bending performance of the cable; the second heat conduction threaded pipe plays double roles of heat conduction and shielding for the cable, and meanwhile, the bending performance of the cable is basically not influenced; the thermoplastic polyolefin rubber layer is bound and melted to form a mixed structure of the thread fiber and the thermoplastic melt, so that the double functions of insulation and protection are achieved, and the bending performance of the cable core is not influenced;
2. the utility model discloses a material is the environmental protection material for the cable chooseed for use, belongs to the environmental protection cable.
3. The shielding cable core of the utility model adopts the shielding insulation structure of the inner insulation cover, the glass fiber layer, the copper mesh shielding layer and the thermoplastic polyolefin rubber layer, and adopts unique eccentric setting to provide rubber allowance for the binding layer of the subsequent spiral fiber and thermoplastic melt mixed-woven structure, so that the radial compression of the shielding cable core is not affected by the pressure of the binding layer basically;
4. the utility model discloses a cable has high temperature resistant characteristic, allows certain cable overload capacity, has and blocks water, prevents anticorrosive, ultraviolet ray ageing resistance ability, safety in utilization performance height, has environmental protection, fire-resistant characteristic, accords with the direction of future cable development.
Drawings
Fig. 1 is a schematic structural view of an environment-friendly fireproof cable based on a silicone rubber structure provided by the utility model;
in the figure: the cable comprises a first heat conduction threaded pipe 1, a shielding cable core 2, a lead 201, an inner insulating skin 202, a glass fiber layer 203, a copper mesh shielding layer 204, a thermoplastic polyolefin rubber layer 205, a binding layer 3, a second heat conduction threaded pipe 4, a silicone rubber layer 5 and a tensile fiber 6.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1, an environment-friendly fireproof cable based on a silicone rubber structure comprises a first heat conduction threaded pipe 1 located at a circle center position, a shielding cable core 2 annularly distributed outside the first heat conduction threaded pipe 1, a binding layer 3 bound on the shielding cable core 2, a second heat conduction threaded pipe 4 tightly sleeved outside the binding layer 3, and a silicone rubber layer 5 extruded on the second heat conduction threaded pipe 4, wherein tensile fibers 6 annularly distributed along the first heat conduction threaded pipe 1 are arranged in gaps between a plurality of shielding cable cores 2 and the binding layer 3; the single shielding cable core 2 sequentially comprises a conducting wire 201, an inner insulating sheath 202 extruded outside the conducting wire 201, a glass fiber layer 203 wound outside the inner insulating sheath 202, a copper mesh shielding layer 204 wound outside the glass fiber layer 203 and a thermoplastic polyolefin rubber layer 205 extruded outside the copper mesh shielding layer 204 from inside to outside, the conducting wire 201, the inner insulating sheath 202, the glass fiber layer 203 and the copper mesh shielding layer 204 are concentrically arranged, the conducting wire 201 is positioned at the eccentric position of the thermoplastic polyolefin rubber layer 205, the thinnest part of the thermoplastic polyolefin rubber layer 205 is in tangential contact with the outer wall of the first heat-conducting threaded pipe 1, and the thickest part of the thermoplastic polyolefin rubber layer 205 is in tangential contact with the inner wall of the second heat-conducting threaded pipe 4; the binding layer 3 is a woven net structure formed by densely binding a composite pull rope formed by mixing and twisting glass fiber wires and aramid fibers outside the thermoplastic polyolefin rubber layer 205, and after the binding is finished, a part of melt of the thermoplastic polyolefin rubber layer 205 is infiltrated into pores of fiber tissues in the woven net by baking at a high temperature of 300 ℃ to finally form a mixed structure of spiral fibers and thermoplastic polyolefin rubber melt; the first heat-conducting threaded pipe 1 and the second heat-conducting threaded pipe 4 are specifically spiral corrugated stainless steel threaded pipes.
Referring to fig. 1, a thread pitch between the first heat-conducting threaded pipe 1 and the second heat-conducting threaded pipe 4 is substantially the same as a spiral pitch between the tie-ropes, and both ends of the first heat-conducting threaded pipe 1 and the second heat-conducting threaded pipe 4 are respectively subjected to end-capping. The first heat conduction threaded pipe 1 and the second heat conduction threaded pipe 4 play a role in accelerating heat conduction, and the serious result that the electric conductivity is sharply reduced due to overhigh internal temperature of the cable core in the process of firing is avoided.
Referring to fig. 1, heat conduction oil, liquid nitrogen or organic fluorine refrigerant is filled in the first heat conduction threaded pipe 1 and the second heat conduction threaded pipe 4, heat conduction media are selected according to different use temperatures of the cable, for example, heat conduction oil is adopted at a temperature below 200 ℃, organic fluorine refrigerant is adopted at a temperature of 200 ℃ and 600 ℃, and liquid nitrogen is adopted for cooling at a temperature above 600 ℃.
Referring to fig. 1, bamboo-joint-shaped ceramic layers are obtained by baking the outer surfaces of the silicon rubber layers 5 through segmented flames, the ceramic layers provide the functions of fire prevention, fire resistance and heat insulation, and the ceramic layers arranged in a segmented mode enable the whole cable to still have certain flexibility and flexibility, so that the cable is more convenient to install during wiring.
Referring to fig. 1, the stretch-proofing fibre 6 is the circular shape single core kevlar rope specifically, and stretch-proofing fibre 6 provides axial stretching resistance, makes the utility model discloses a stability of mechanical properties can be guaranteed to the cable in installation, use and dismantlement in-process homoenergetic.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. An environment-friendly fireproof cable based on a silicone rubber structure comprises a first heat-conducting threaded pipe (1) located at the position of a circle center, a shielding cable core (2) distributed outside the first heat-conducting threaded pipe (1) in an annular mode, a binding layer (3) bound to the shielding cable core (2), a second heat-conducting threaded pipe (4) tightly sleeved outside the binding layer (3) and a silicone rubber layer (5) extruded on the second heat-conducting threaded pipe (4), and is characterized in that tensile fibers (6) distributed along the first heat-conducting threaded pipe (1) in an annular mode are arranged in gaps between the shielding cable cores (2) and the binding layer (3);
the single shielding cable core (2) sequentially comprises a lead (201), an inner insulating skin (202) extruded outside the lead (201), a glass fiber layer (203) wound outside the inner insulating skin (202), a copper mesh shielding layer (204) wound outside the glass fiber layer (203) and a thermoplastic polyolefin rubber layer (205) extruded outside the copper mesh shielding layer (204) from inside to outside, the lead (201), the inner insulating skin (202), the glass fiber layer (203) and the copper mesh shielding layer (204) are concentrically arranged, the lead (201) is located at the eccentric position of the thermoplastic polyolefin rubber layer (205), the thinnest position of the thermoplastic polyolefin rubber layer (205) is in tangential contact with the outer wall of the first heat-conducting threaded pipe (1), and the thickest position of the thermoplastic polyolefin rubber layer (205) is in tangential contact with the inner wall of the second heat-conducting threaded pipe (4);
the binding layer (3) is a woven net structure formed by densely binding composite pull ropes outside the thermoplastic polyolefin rubber layer (205);
the first heat conduction threaded pipe (1) and the second heat conduction threaded pipe (4) are spiral corrugated stainless steel threaded pipes.
2. The environment-friendly fireproof cable based on the silicone rubber structure as claimed in claim 1, wherein the thread pitch of the first heat conduction threaded pipe (1) and the second heat conduction threaded pipe (4) is substantially the same as the spiral pitch of the stay cord bundle, and both ends of the first heat conduction threaded pipe (1) and the second heat conduction threaded pipe (4) are respectively subjected to end-capping treatment.
3. The environment-friendly fireproof cable based on the silicone rubber structure as claimed in claim 2, wherein the first heat conduction threaded pipe (1) and the second heat conduction threaded pipe (4) are filled with heat conduction oil, liquid nitrogen or organic fluorine refrigerant.
4. The environment-friendly fireproof cable based on the silicone rubber structure as claimed in claim 1, wherein the outer surface of the silicone rubber layer (5) is provided with a ceramic layer in a segmented bamboo joint shape.
5. The environment-friendly fireproof cable based on the silicone rubber structure as claimed in claim 1, wherein the tensile fiber (6) is a single-core Kevlar fiber rope with a circular cross-section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922309435.5U CN211208062U (en) | 2019-12-20 | 2019-12-20 | Environment-friendly fireproof cable based on silicon rubber structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922309435.5U CN211208062U (en) | 2019-12-20 | 2019-12-20 | Environment-friendly fireproof cable based on silicon rubber structure |
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| CN211208062U true CN211208062U (en) | 2020-08-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115171968A (en) * | 2022-08-08 | 2022-10-11 | 上海飞航电线电缆有限公司 | High-efficiency energy-saving medium-voltage fireproof cable |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115171968A (en) * | 2022-08-08 | 2022-10-11 | 上海飞航电线电缆有限公司 | High-efficiency energy-saving medium-voltage fireproof cable |
| CN115171968B (en) * | 2022-08-08 | 2023-08-08 | 上海飞航电线电缆有限公司 | High-efficiency energy-saving medium-voltage fireproof cable |
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