CN209993359U - Combined flexible cable for underground movable transformer - Google Patents
Combined flexible cable for underground movable transformer Download PDFInfo
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- CN209993359U CN209993359U CN201920816005.XU CN201920816005U CN209993359U CN 209993359 U CN209993359 U CN 209993359U CN 201920816005 U CN201920816005 U CN 201920816005U CN 209993359 U CN209993359 U CN 209993359U
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Abstract
The utility model discloses a combination formula flexible cable for mobile transformer in pit, including cable core, insulating layer, steel wire armor, copper pipe and restrictive coating, the cable core comprises power sinle silk, monitoring sinle silk, earth core and tensile rope, and power sinle silk comprises power transmission conductor, power transmission is insulating, power transmission shields and power transmission rubber sleeve, and monitoring sinle silk comprises signal transmission conductor, signal transmission is insulating, pair twist around the band, signal transmission shields and transmission rubber sleeve, and the steel wire armor comprises intermediate layer silicone rubber sleeve and steel wire, and the copper pipe outer wall establishes spiral antiskid groove; the power transmission shield and the signal transmission shield are in particular conductive cloths. The utility model combines the unpowered wire core, the monitoring wire core and the ground wire core into the cable core, thereby saving the laying cost and avoiding the cable winding; the steel wire armor layer and the copper pipe are used as an armor structure, a tensile structure and a shielding structure of the cable, so that the service life of the underground cable is guaranteed.
Description
Technical Field
The utility model relates to a mining cable technical field especially relates to a combination formula flexible cable for removing transformer in pit.
Background
The rated voltage of underground coal mine mobile transformers and similar equipment is generally 3.6/6kV, the cables also need power cables corresponding to the voltage, and meanwhile, computer cables or communication cables for data signal transmission are needed.
In addition, during downhole operation, the cable needs to be moved frequently, and if an independent and separate power cable and a communication cable are used, each cable is easy to wind during dragging, and a cable joint or a cable terminal is easy to contact badly due to overlarge torque, so that hidden danger is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcomings existing in the prior art, and provides a combined flexible cable for an underground movable transformer.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the combined flexible cable for the underground movable transformer comprises a cable core, an insulating layer wrapped outside the cable core, a steel wire armor layer wrapped outside the insulating layer, a copper pipe arranged outside the steel wire armor layer and a sheath layer wrapped outside the copper pipe, wherein the cable core consists of three groups of power wire cores, three groups of monitoring wire cores, a ground wire core and a plurality of tensile ropes;
the power wire core consists of a power transmission conductor, a power transmission insulator, a power transmission shield and a power transmission rubber sleeve, wherein the power transmission conductor is formed by twisting a plurality of strands of tinned copper wires, and the power transmission shield is positioned between the power transmission insulator and the power transmission rubber sleeve;
the monitoring wire core consists of a signal transmission conductor, a signal transmission insulator, a pair-twisting wrapping tape, a signal transmission shield and a transmission rubber sleeve, wherein the signal transmission conductor is a single-core copper conductor wrapped with the signal transmission insulator, the pair-twisting wrapping tape is wrapped outside the two signal transmission conductors, and the signal transmission shield is positioned between the signal transmission insulator and the signal transmission rubber sleeve.
Preferably, the insulating layer is in particular a fluoroplastic, a silicone rubber or a crosslinked polyethylene.
Preferably, the steel wire armor layer consists of an interlayer silicon rubber sleeve and a circle of steel wires arranged in the interlayer silicon rubber sleeve.
Preferably, the inner pipe wall of the copper pipe is a smooth surface, and the outer pipe wall of the copper pipe is provided with a spiral anti-slip groove.
Preferably, the jacket layer is in particular a polyvinyl chloride rubber, a nitrile rubber or a silicone rubber.
The utility model discloses in, power transmission shielding and signal transmission shielding are electrically conductive cloth material, and electrically conductive cloth specifically is the fibre cloth that the flooding has nanometer conductive liquid to the production technology of electrically conductive cloth has been provided, including following step:
1) preparation of ATO nanoparticles: SnCl with the mole percentage of 85-95 percent4·5H2O, adding into ethanol containing acetylacetone 5-15% (concentration ratio), and adding SbCl 5-15 mol%3Stirring to obtain a clear solution, slowly dropwise adding pure water, stirring and refluxing for 3h at 80 ℃ to obtain sol, aging for 24-48h, and calcining at 800-1200 ℃ to obtain ATO nano-particle powder;
2) preparing a nano conductive liquid: grinding and dissolving ATO nano-particle powder into pure water, stirring at a high speed, adding graphene oxide with a molar ratio of 100: 10: adding sodium octadecyl sulfate with the same weight as the ATO nano-particle powder into the aqueous solution of sulfuric acid, and stirring at high speed of 12000r/min for 30min to obtain nano conductive liquid;
3) preparing conductive cloth: and (3) drying the fiber cloth, soaking the fiber cloth in the nano conductive liquid for 1min, adding water to wash the surface of the fiber cloth, drying the fiber cloth, and repeating the operation for 2-4 times to obtain the finished conductive cloth.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the interference killing feature is especially important to cable in the pit, and whether signal stability in the pit often concerns the personal safety of workman in the pit, so the utility model provides a steel wire armor and copper pipe are regarded as armor structure, tensile structure and the shielding structure of cable with the two simultaneously, have great practical application and worth.
2. The utility model discloses a cable core comprises three power sinle silks of group, three group's supervision sinle silks, a ground core and a plurality of tensile rope, and the tensile rope provides sufficient inside tensile property, and power sinle silk, supervision sinle silk and ground core all are equipped with the shielding layer to in assembling a cable core with different rated voltage's sinle silk, save the cost of laying of cable in the pit, the winding when avoiding the cable to drag.
3. The power transmission shield and the signal transmission shield are made of conductive cloth, the conductive cloth is specifically fiber cloth impregnated with nanometer conductive liquid, the surface and the inside of the conductive cloth are all conductive, the defect that the conductive cloth loses conductive shielding property after being worn in a coating film in the prior art is overcome, and the conductive cloth has great practical value and popularization value.
Drawings
Fig. 1 is a schematic structural diagram of a combined flexible cable for an underground mobile transformer according to the present invention;
fig. 2 is a schematic diagram of an internal structure of a power core of a combined flexible cable for an underground mobile transformer according to the present invention;
fig. 3 is a schematic diagram of an internal structure of a monitoring core of a combined flexible cable for a downhole mobile transformer according to the present invention;
fig. 4 is a three-dimensional structure diagram of the copper tube of the combined flexible cable for the underground movable transformer of the utility model.
In the figure: insulating layer 1, steel wire armor 2, intermediate layer silicone rubber cover 201, steel wire 202, copper pipe 3, spiral antiskid groove 301, restrictive coating 4, power sinle silk 5, power transmission conductor 501, power transmission is insulating 502, power transmission shielding 503, power transmission rubber sleeve 504, monitor sinle silk 6, signal transmission conductor 601, signal transmission is insulating 602, pair twist is around band 603, signal transmission shielding 604, transmission rubber sleeve 605, earth core 7, stretch-proofing rope 8.
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. 1-4, a combined flexible cable for an underground movable transformer comprises a cable core, an insulating layer 1 wrapped outside the cable core, a steel wire armor layer 2 wrapped outside the insulating layer 1, a copper pipe 3 arranged outside the steel wire armor layer 2 and a sheath layer 4 wrapped outside the copper pipe 3, wherein the cable core is composed of three groups of power wire cores 5, three groups of monitoring wire cores 6, a ground wire core 7 and a plurality of tensile ropes 8, the ground wire core 7 is formed by wrapping a single-core copper conductor with a rubber skin, the ground wire core 7 is positioned at the center of the cable core, the power wire cores 5 and the monitoring wire cores 6 are alternately distributed outside the ground wire core 7, and the tensile ropes 8 are distributed in gaps among the wire cores; the power wire core 5 consists of a power transmission conductor 501, a power transmission insulator 502, a power transmission shield 503 and a power transmission rubber sleeve 504, wherein the power transmission conductor 501 is formed by twisting a plurality of strands of tinned copper wires, and the power transmission shield 503 is positioned between the power transmission insulator 502 and the power transmission rubber sleeve 504; the monitoring wire core 6 is composed of a signal transmission conductor 601, a signal transmission insulation 602, a pair twisting wrapping tape 603, a signal transmission shield 604 and a transmission rubber sleeve 605, wherein the signal transmission conductor 601 is a single-core copper conductor wrapped with the signal transmission insulation 602, the pair twisting wrapping tape 603 is wrapped outside the two signal transmission conductors 601, and the signal transmission shield 604 is positioned between the signal transmission insulation 602 and the signal transmission rubber sleeve 605.
Referring to fig. 1, the insulating layer 1 is specifically fluoroplastic, silicone rubber or crosslinked polyethylene, and has good heat resistance, and the insulating layer 1 does not crack when the temperature of the cable core rises, so that electric leakage is avoided, and the cable core insulating layer is suitable for a cable core insulating layer of a downhole cable.
Referring to fig. 1, the steel wire armor layer 2 is composed of an interlayer silicone rubber sleeve 201 and a circle of steel wires 202 arranged in the interlayer silicone rubber sleeve 201, and the interlayer silicone rubber sleeve 201 is used for sleeving the circle of steel wires 202, so that the tensile property and the impact resistance of the cable are greatly improved, and the steel wire armor layer is particularly suitable for a support structure of an underground cable.
Referring to fig. 1, the inner pipe wall of the copper pipe 3 is a smooth surface, the outer pipe wall of the copper pipe 3 is provided with a spiral anti-slip groove 301, the copper pipe 3 is wrapped outside the interlayer silicone rubber sleeve 201 to serve as an armor structure of the cable, and meanwhile, the steel wire 202 and the copper pipe 3 can be grounded and can also serve as a shielding structure, so that the anti-interference capability of the cable core is improved; the interference killing feature is especially important to cable in the pit, and whether signal stability in the pit often concerns workman's in the pit personal safety, so the utility model provides a steel wire armor 2 and copper pipe 3 are regarded as armor structure, tensile structure and the shielding structure of cable with the two simultaneously, have great practical application and worth.
Referring to fig. 1, the sheath layer 4 is specifically made of polyvinyl chloride rubber, nitrile rubber or silicone rubber, and has the advantages of low cost, good flexibility and convenience for dragging underground cables.
The utility model discloses in, power transmission shielding 503 and signal transmission shielding 604 are electrically conductive cloth material, and electrically conductive cloth specifically is the fibre cloth that has the electrically conductive liquid of nanometer of flooding.
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 (6)
1. The combined flexible cable for the underground movable transformer comprises a cable core, an insulating layer (1) wrapped outside the cable core, a steel wire armor layer (2) wrapped outside the insulating layer (1), a copper pipe (3) arranged outside the steel wire armor layer (2) and a sheath layer (4) wrapped outside the copper pipe (3), and is characterized in that the cable core consists of three groups of power wire cores (5), three groups of monitoring wire cores (6), a ground wire core (7) and a plurality of tensile ropes (8), wherein the ground wire core (7) is formed by wrapping a single-core copper conductor with rubber, the ground wire core (7) is located at the center of the cable core, the power wire cores (5) and the monitoring wire cores (6) are alternately distributed outside the ground wire cores (7), and the tensile ropes (8) are distributed in gaps among the wire cores;
the power wire core (5) is composed of a power transmission conductor (501), a power transmission insulator (502), a power transmission shield (503) and a power transmission rubber sleeve (504), the power transmission conductor (501) is formed by stranding a plurality of strands of tinned copper wires, and the power transmission shield (503) is positioned between the power transmission insulator (502) and the power transmission rubber sleeve (504);
the monitoring wire core (6) is composed of a signal transmission conductor (601), a signal transmission insulator (602), a pair twisting wrapping tape (603), a signal transmission shield (604) and a transmission rubber sleeve (605), the signal transmission conductor (601) is a single-core copper conductor wrapped with the signal transmission insulator (602), the pair twisting wrapping tape (603) is wrapped outside the two signal transmission conductors (601), and the signal transmission shield (604) is located between the signal transmission insulator (602) and the signal transmission rubber sleeve (605).
2. Combined flexible cable for a downhole mobile transformer according to claim 1, characterized in that the insulating layer (1) is in particular fluoroplastic, silicone rubber or cross-linked polyethylene.
3. The modular flexible cable for a downhole mobile transformer according to claim 2, characterized in that the steel wire armor layer (2) is composed of a sandwich silicone rubber sheath (201) and a ring of steel wires (202) arranged in the sandwich silicone rubber sheath (201).
4. The combined flexible cable for the downhole mobile transformer according to claim 3, wherein the inner wall of the copper pipe (3) is smooth and the outer wall of the copper pipe (3) is provided with a spiral anti-slip groove (301).
5. Combined flexible cable for a downhole mobile transformer according to claim 4, characterized in that the sheath layer (4) is in particular a polyvinyl chloride rubber, a nitrile rubber or a silicone rubber.
6. The modular flexible cable for a downhole mobile transformer according to any of claims 1-5, wherein the power transmission shield (503) and the signal transmission shield (604) are both made of conductive cloth, in particular fiber cloth impregnated with nano conductive liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920816005.XU CN209993359U (en) | 2019-06-01 | 2019-06-01 | Combined flexible cable for underground movable transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920816005.XU CN209993359U (en) | 2019-06-01 | 2019-06-01 | Combined flexible cable for underground movable transformer |
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| Publication Number | Publication Date |
|---|---|
| CN209993359U true CN209993359U (en) | 2020-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920816005.XU Active CN209993359U (en) | 2019-06-01 | 2019-06-01 | Combined flexible cable for underground movable transformer |
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| CN (1) | CN209993359U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110085353A (en) * | 2019-06-01 | 2019-08-02 | 安徽渡江电缆集团有限公司 | Combined type flexible cable for underground moving transformer |
| CN114002795A (en) * | 2021-12-03 | 2022-02-01 | 安徽光纤光缆传输技术研究所(中国电子科技集团公司第八研究所) | Flexible metal armored field operation optical cable |
-
2019
- 2019-06-01 CN CN201920816005.XU patent/CN209993359U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110085353A (en) * | 2019-06-01 | 2019-08-02 | 安徽渡江电缆集团有限公司 | Combined type flexible cable for underground moving transformer |
| CN110085353B (en) * | 2019-06-01 | 2024-02-06 | 安徽渡江电缆集团有限公司 | Combined flexible cable for underground movable transformer |
| CN114002795A (en) * | 2021-12-03 | 2022-02-01 | 安徽光纤光缆传输技术研究所(中国电子科技集团公司第八研究所) | Flexible metal armored field operation optical cable |
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