CN212570485U - Photoelectric hybrid cable with high tensile resistance and capability of monitoring water seepage - Google Patents
Photoelectric hybrid cable with high tensile resistance and capability of monitoring water seepage Download PDFInfo
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- CN212570485U CN212570485U CN202022195227.XU CN202022195227U CN212570485U CN 212570485 U CN212570485 U CN 212570485U CN 202022195227 U CN202022195227 U CN 202022195227U CN 212570485 U CN212570485 U CN 212570485U
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Abstract
The utility model discloses a photoelectric hybrid cable with high tensile resistance and capability of monitoring water seepage, which comprises an outer sheath, a water-absorbing resin layer, a wrapping layer and a cable core, wherein the outer sheath, the water-absorbing resin layer, the wrapping layer and the cable core are arranged from outside to inside; the central position of the cable core is provided with a central reinforcing part which is a resin glass fiber mixed reinforcing part, and the cable core also comprises a filling rope and a plurality of optical fiber cables which are arranged around the central reinforcing part; the wrapping layer is formed by wrapping a resin glass fiber mixed tape on the cable core; the water-absorbent resin layer is wrapped on the wrapping layer, and a sensing optical fiber is arranged in the water-absorbent resin layer; the outer sheath wraps the water-absorbent resin layer, and a plurality of copper wires are arranged inside the outer sheath. The photoelectric mixed cable not only has better tensile resistance and lateral pressure resistance, but also can monitor water seepage, send out a water seepage alarm signal and realize double transmission of optical signals and electric signals.
Description
Technical Field
The utility model belongs to the technical field of communication, concretely relates to mixed cable of photoelectricity with high tensile strength and infiltration can be monitored.
Background
In the prior art, when an optical cable is laid, the optical cable needs to be stretched and the like, so that the optical cable is required to have better stretching performance. The existing optical cable product can provide stretching force and is provided with a central reinforcement (a metal reinforcement and a nonmetal reinforcement), glass fiber yarns, aramid yarns and the like; wherein the central stiffener may provide the primary source of tensile force. When a single central reinforcing member cannot meet the tensile force, a plurality of layers of reinforcing members are required to be combined to achieve the required tensile force; however, this method of providing multiple layers of strength members not only increases the cost, but also results in increased cable volume and weight, which in the case of aerial cables increases the risk of long-term stretching and damage.
In addition, for the optical cable that lays, if the infiltration accident appears, under the condition that the staff can't monitor, then influence optical fiber transmission performance easily, lead to unable normal work.
Furthermore, the existing optical cable can only transmit optical signals, but cannot transmit electric signals, and cannot meet the use requirements.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, an object of the utility model is to provide a mixed cable of photoelectricity with high tensile resistance and infiltration of can monitoring not only has better tensile resistance and anti side pressure ability, can monitor the infiltration moreover to send out infiltration alarm signal, can realize the dual transmission of light signal and signal of telecommunication again simultaneously.
For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
a photoelectric hybrid cable with high tensile resistance and capability of monitoring water seepage comprises an outer sheath, a water-absorbing resin layer, a wrapping layer and a cable core, wherein the outer sheath, the water-absorbing resin layer, the wrapping layer and the cable core are arranged from outside to inside; the central position of the cable core is provided with a central reinforcing part, the central reinforcing part is made of a thermoplastic resin and glass fiber mixed material, and the cable core further comprises a filling rope and a plurality of optical fiber cables, wherein the filling rope and the optical fiber cables are arranged around the central reinforcing part; the wrapping layer is formed by wrapping a resin glass fiber mixed tape on the cable core; the water-absorbent resin layer is wrapped on the wrapping layer, and a sensing optical fiber is arranged in the water-absorbent resin layer; the outer sheath wraps the water-absorbent resin layer, and a plurality of copper wires are arranged inside the outer sheath.
Furthermore, the optical fiber cable of the cable core consists of a loose tube, a plurality of optical fiber inner cores and fiber paste filled between the optical fiber inner cores and the loose tube.
Further, the cable core is filled with filling ointment.
Further, the copper conductor is coated with ceramic high-temperature insulating paint.
Furthermore, the ceramic high-temperature insulating paint is prepared from inorganic-organic grafting modified resin, nano-mica and silicon nitride.
Furthermore, the central reinforcing member is formed by stranding a plurality of reinforcing member single ropes made of a thermoplastic resin and glass fiber mixed material.
Furthermore, the sensing optical fiber is arranged in the water-absorbent resin layer in a spiral forward mode.
The utility model has the advantages that:
(1) the central reinforcing part in the utility model is made of the mixed material of thermoplastic resin and glass fiber and is formed by twisting a plurality of reinforcing parts by single ropes; the central reinforcing piece replaces the traditional reinforcing piece, so that the whole photoelectric hybrid cable has lighter weight, and has stronger tensile resistance compared with the traditional metal reinforcing piece, and the tensile resistance can reach 3000N/mm2Therefore, the optical fiber attenuation performance can be prevented from being influenced by the stress damage of the optical fiber in the construction process; in addition, the cable core is wrapped outward and is wrapped the fine mixed area of resin glass, compares in wrapping traditional steel aluminium strip, can further strengthen the tensile ability of mixed cable of photoelectricity, also makes it possess stronger anti side pressure ability.
(2) The photoelectric mixed cable is internally provided with a water-absorbing resin layer; the super absorbent resin in the water absorbent resin layer is a functional polymer material with a large number of hydrophilic groups, has a high water absorption function of absorbing water which is hundreds to thousands times heavier than the self weight, has excellent water retention performance, and is difficult to separate water even if being pressurized once the water is expanded into hydrogel after absorbing water; when the laid optical cable has water seepage accidents, the water-absorbing resin layer plays a role in absorbing water, so that the transmission performance of the optical fiber is prevented from being influenced;
(3) the photoelectric hybrid cable of the utility model adds the sensing optical fiber in the middle of the water-absorbent resin layer for monitoring the moisture, humidity and the like in the water-absorbent resin; the sensing optical fibers are arranged in the water-absorbing resin in a spiral forward mode, so that the monitoring can be carried out in place when water seepage occurs on each cable surface. When the moisture in the water absorption resin layer changes, the sensing optical fiber outputs a signal, the connector arranged at the terminal receives the signal and transmits an alarm signal to a command center, so that personnel can be arranged to overhaul and maintain an alarm point, and the optical cable is prevented from further water seepage;
(4) the outer sheath is provided with a copper wire, so that the photoelectric mixed cable can transmit electric signals, and the inner cable core can enable the photoelectric mixed cable to realize the function of transmitting optical signals; in addition, the surface of the copper wire in the outer sheath is coated with ceramic high-temperature insulating paint, so that the high-temperature resistance of the copper wire is improved, and the copper wire can bear the high temperature of 1700 ℃. Moreover, the ceramic high-temperature insulating paint has good adhesive force, can prevent insulating shielding current from passing at high temperature and prevent corona discharge; and the insulating paint coating is compact, the resistivity is high, the dielectric constant is good, the electronic seepage and the tunnel effect cannot be generated, meanwhile, the hardness is high, the wear resistance is good, and the service life of the copper wire is prolonged. Moreover, the copper wire can supply power for relevant modulation and demodulation equipment of the sensing optical fiber, external wiring power supply is not needed, and the use is convenient.
Drawings
Fig. 1 is a schematic structural view of a photoelectric hybrid cable with high tensile strength and capable of monitoring water seepage of the present invention.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
As shown in fig. 1, a preferred embodiment of an optical-electrical hybrid cable with high tensile strength and capability of monitoring water seepage comprises an outer sheath 1, a water-absorbent resin layer 2, a wrapping layer 3 and a cable core which are arranged from outside to inside; the central position of the cable core is provided with a central reinforcing part 4, the central reinforcing part 4 is made of a thermoplastic resin and glass fiber mixed material, and the cable core further comprises a filling rope 5 and a plurality of optical fiber cables 6, wherein the filling rope 5 and the optical fiber cables 6 are arranged around the central reinforcing part 4; in this embodiment, the number of the optical fiber cables 6 is 4, and the number of the filling ropes 5 is 2; the wrapping layer 3 is formed by wrapping a resin glass fiber mixed tape on the cable core; the water-absorbent resin layer 2 is wrapped on the wrapping layer 3, and a sensing optical fiber 7 is arranged in the water-absorbent resin layer 2; the outer sheath 1 is wrapped outside the water-absorbent resin layer 2, and a plurality of copper wires 8 are arranged inside the outer sheath 1; in this embodiment, the number of copper wires is 4.
Specifically, the optical fiber cable 6 of the cable core is composed of a loose tube 61, a plurality of optical fiber cores 62 and a fiber paste 63 filled between the optical fiber cores 62 and the loose tube 61. In this embodiment, the number of optical fiber cores in each optical fiber cable is 4. In addition, filling ointment 9 is filled among a plurality of optical fiber cables of the cable core, between the optical fiber cables and the filling ropes, and between the optical fiber cables, the filling ropes and the middle reinforcing members.
Furthermore, the copper wire 8 is coated with ceramic high-temperature insulating paint; the high-temperature insulating ceramic paint is prepared by using inorganic-organic grafting modified resin as a film forming substance and adding flaky nano mica and silicon nitride as fillers.
In order to further enhance the tensile strength and the lateral pressure resistance of the entire hybrid optical/electrical cable, the central reinforcing member 4 is formed by twisting a plurality of reinforcing member strands made of a hybrid material of thermoplastic resin and glass fiber.
Furthermore, the sensing optical fiber 7 is arranged in the water absorbent resin layer 2 in a spiral forward mode, so that the monitoring can be carried out in place when water seepage exists on each cable surface.
The central reinforcement 4 in the photoelectric hybrid cable is made of thermoplastic resin and glass fiber mixed materials and is formed by stranding a plurality of reinforcement single ropes; such a central stiffener can be used instead of a central stiffenerThe conventional reinforcing piece is replaced, so that the whole photoelectric hybrid cable has lighter weight, and has stronger tensile resistance compared with the conventional metal reinforcing piece, and the tensile resistance can reach 3000N/mm2Therefore, the optical fiber attenuation performance can be prevented from being influenced by the stress damage of the optical fiber in the construction process; in addition, the cable core is wrapped outward and is wrapped the fine mixed area of resin glass, compares in wrapping traditional steel aluminium strip, can further strengthen the tensile ability of mixed cable of photoelectricity, also makes it possess stronger anti side pressure ability.
The periphery of a cable core of the photoelectric mixed cable is wrapped with a water-absorbent resin layer 2; the super absorbent resin in the water absorbent resin layer is a functional polymer material with a large number of hydrophilic groups, has a high water absorption function of absorbing water which is hundreds to thousands times heavier than the self weight, has excellent water retention performance, and is difficult to separate water even if being pressurized once the water is expanded into hydrogel after absorbing water; when the laid optical cable has water seepage accidents, the water-absorbing resin layer plays a role in absorbing water, so that the transmission performance of the optical fiber is prevented from being influenced;
the photoelectric mixed cable is additionally provided with a sensing optical fiber 7 in the middle of the water-absorbent resin layer 2, and is used for monitoring moisture, humidity and the like in the water-absorbent resin; the sensing optical fibers are arranged in the water-absorbing resin in a spiral forward mode, so that the monitoring can be carried out in place when water seepage occurs on each cable surface. When the moisture in the water absorption resin layer changes, the sensing optical fiber outputs a signal, the connector arranged at the terminal receives the signal and transmits an alarm signal to a command center, so that personnel can be arranged to overhaul and maintain an alarm point, and the optical cable is prevented from further water seepage;
the outer sheath 1 of the photoelectric hybrid cable is provided with a copper wire 8, so that the photoelectric hybrid cable can transmit electric signals, and the internal cable core can enable the photoelectric hybrid cable to realize the function of transmitting optical signals; in addition, the surface of the copper wire in the outer sheath is coated with ceramic high-temperature insulating paint, so that the high-temperature resistance of the copper wire is improved, and the copper wire can bear the high temperature of 1700 ℃. The ceramic high-temperature insulating paint has good adhesive force, can prevent insulating shielding current from passing at high temperature, and prevents corona discharge; and the insulating paint coating is compact, the resistivity is high, the dielectric constant is good, the electronic seepage and the tunnel effect cannot be generated, meanwhile, the hardness is high, the wear resistance is good, and the service life of the copper wire is prolonged. Moreover, the copper wire can supply power for relevant modulation and demodulation equipment of the sensing optical fiber, external wiring power supply is not needed, and the use is convenient.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (7)
1. The utility model provides a but mixed cable of photoelectricity with high tensile resistance and control infiltration which characterized in that: the cable comprises an outer sheath, a water-absorbent resin layer, a wrapping layer and a cable core which are arranged from outside to inside; the central position of the cable core is provided with a central reinforcing part which is a resin glass fiber mixed reinforcing part, and the cable core also comprises a filling rope and a plurality of optical fiber cables which are arranged around the central reinforcing part; the wrapping layer is formed by wrapping a resin glass fiber mixed tape on the cable core; the water-absorbent resin layer is wrapped on the wrapping layer, and a sensing optical fiber is arranged in the water-absorbent resin layer; the outer sheath wraps the water-absorbent resin layer, and a plurality of copper wires are arranged inside the outer sheath.
2. The hybrid fiber optic cable with high tensile strength and water seepage monitoring function as claimed in claim 1, wherein: the optical fiber cable of the cable core consists of a loose tube, a plurality of optical fiber inner cores and fiber paste filled between the optical fiber inner cores and the loose tube.
3. The hybrid fiber optic cable with high tensile strength and water seepage monitoring function as claimed in claim 1, wherein: the cable core is filled with filling ointment.
4. The hybrid fiber optic cable with high tensile strength and water seepage monitoring function as claimed in claim 1, wherein: and the copper conductor is coated with ceramic high-temperature insulating paint.
5. The hybrid fiber optic cable with high tensile strength and water seepage monitoring function according to claim 4, wherein: the ceramic high-temperature insulating paint is prepared from inorganic-organic grafting modified resin, nano-grade mica and silicon nitride.
6. The hybrid fiber optic cable with high tensile strength and water seepage monitoring function as claimed in claim 1, wherein: the central reinforcing member is formed by stranding a plurality of reinforcing member single ropes made of a thermoplastic resin and glass fiber mixed material.
7. The hybrid fiber optic cable with high tensile strength and water seepage monitoring function as claimed in claim 1, wherein: the sensing optical fiber is arranged in the water absorption resin layer in a spiral forward mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022195227.XU CN212570485U (en) | 2020-09-30 | 2020-09-30 | Photoelectric hybrid cable with high tensile resistance and capability of monitoring water seepage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022195227.XU CN212570485U (en) | 2020-09-30 | 2020-09-30 | Photoelectric hybrid cable with high tensile resistance and capability of monitoring water seepage |
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| Publication Number | Publication Date |
|---|---|
| CN212570485U true CN212570485U (en) | 2021-02-19 |
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| CN202022195227.XU Active CN212570485U (en) | 2020-09-30 | 2020-09-30 | Photoelectric hybrid cable with high tensile resistance and capability of monitoring water seepage |
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| CN (1) | CN212570485U (en) |
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- 2020-09-30 CN CN202022195227.XU patent/CN212570485U/en active Active
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