Novel high-temperature-resistant corrosion-resistant medium-voltage power cable

Abstract

The utility model discloses a novel high-temperature-resistant corrosion-resistant medium-voltage power cable, which comprises a nickel-plated copper conductor, a double-layer high-silica glass fiber yarn layer is arranged on the surface of the nickel-plated copper conductor, and a conductor shielding layer, a polytetrafluoroethylene insulating layer, an insulating shielding layer and a copper strip shielding layer are sequentially arranged outside the double-layer high-silica glass fiber yarn layer. And a flame-retardant alkali-free glass fiber rope filling layer is arranged outside the copper strip shielding layer. The novel high-temperature-resistant corrosion-resistant medium-voltage power cable provided by the utility model has high-temperature-resistant and corrosion-resistant effects by arranging the nickel-plated copper conductors, the high-temperature-resistant performance of the conductors is improved by arranging the double-layer high-silica glass fiber yarn layers, the tensile strength of the product is improved by arranging the steel wire armoring, and the novel high-temperature-resistant corrosion-resistant medium-voltage power cable has high-temperature-resistant performance. The cable provided by the utility model has the advantages of high temperature resistance, corrosion resistance, excellent tensile property, thermal aging property and the like, normal and stable work at rated high temperature, no influence on electric energy transmission performance, and long service life.

Description

TECHNICAL FIELD

[0001] The utility model relates to power cable technical field, concretely relates to a novel high temperature resistant corrosion resistant medium voltage power cable. BACKGROUND

[0002] Medium voltage power cable refers to the power cable of rated voltage between 1kV to 35kV, mainly used for power transmission and distribution under the medium voltage grade. Medium voltage cable plays an important role in connecting between the transformer substation and distribution network in power system, and undertakes the task of energy transmission and signal transmission.

[0003] With the development of petroleum, chemical industry, manufacturing industry and the change of ecological environment, the cable manufacturing industry has given birth to various cables. When the ordinary cable is vertically laid or dragged, the cathode zone, if the soil does not contain alkaline liquid, the cable will not have the danger of corrosion, but in the anode zone, corrosion will certainly occur. At the same time, high temperature is easy to produce insulation aging and burning phenomenon, and the use of cable loses performance and is damaged and cannot be used. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a novel high temperature resistant corrosion resistant medium voltage power cable to solve the above-mentioned deficiencies in the prior art.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: including nickel copper conductor, the double layer high silica glass fiber yarn layer is provided with the conductor shielding layer, the polytetrafluoroethylene insulating layer, the insulating shielding layer and the copper band shielding layer outside the double layer high silica glass fiber yarn layer surface in proper order, the flame-retardant alkali-free glass fiber rope filling layer is provided outside the copper band shielding layer.

[0006] As a further description of the above technical scheme:

[0007] The flame-retardant alkali-free glass fiber rope filling layer is provided with the double layer polytetrafluoroethylene fiber cloth outside.

[0008] As a further description of the above technical scheme:

[0009] The double layer polytetrafluoroethylene fiber cloth is provided with the ceramicized thermoplastic elastomer isolation sleeve outside.

[0010] As a further description of the above technical scheme:

[0011] The ceramicized thermoplastic elastomer isolation sleeve is provided with the steel wire armor.

[0012] As a further description of the above technical scheme:

[0013] The steel wire armor is externally provided with a first polytetrafluoroethylene fiber cloth, and the first polytetrafluoroethylene fiber cloth is externally provided with a polytetrafluoroethylene outer sheath.

[0014] As a further description of the above technical solutions:

[0015] Further comprising two cables, opposite sides of the two cables are respectively provided with a connector and a sleeve, the connector is externally fixedly connected with a sealing ring matched with the sleeve, a plurality of abutting rods are rotatably connected outside the connector, and the sleeve is fixedly connected with a limiting plate matched with each abutting rod.

[0016] As a further description of the above technical solutions:

[0017] One end of each of the abutting rods is fixedly connected with a torsion spring, and the other end of the torsion spring is fixedly connected with the connector.

[0018] In the above technical solutions, the novel high-temperature-resistant and corrosion-resistant medium-voltage power cable has the beneficial effects that:

[0019] The novel high-temperature-resistant and corrosion-resistant medium-voltage power cable has the beneficial effects that: the nickel-plated copper conductor has the effects of high-temperature resistance and corrosion resistance, the double-layer high-silica glass fiber yarn layer improves the high-temperature resistance of the conductor, the steel wire armor improves the tensile strength of the product, has high-temperature resistance, corrosion resistance, excellent tensile resistance, heat aging and other properties, can normally and stably work under a rated high temperature, the power transmission performance is not affected, and the cable has a long service life.

[0020] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, rather than limiting the present disclosure.

[0021] The present application provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art according to these drawings.

[0023] Figure 1 The structure schematic diagram of the cable provided by the present application is shown in the figure;

[0024] Figure 2 The structure schematic diagram of the cable provided by the present application is shown in the figure;

[0025] Figure 3The partial section structure schematic diagram of the cable connection part is provided for the embodiment of the utility model.

[0026] Figure 4 The partial section structure schematic diagram of the cable connection part is provided for the embodiment of the utility model. Figure 3 The enlarged structure schematic diagram of A shown.

[0027] Mark explanation:

[0028] 1, nickel-plated copper conductor; 2, double high silica glass fiber yarn layer; 3, conductor shielding layer; 4, polytetrafluoroethylene insulation layer; 5, insulation shielding layer; 6, copper band shielding layer; 7, flame-retardant alkali-free glass fiber rope layer; 8, double polytetrafluoroethylene fiber cloth; 9, ceramic thermoplastic elastomer isolation sleeve; 10, steel wire armor; 11, first polytetrafluoroethylene fiber cloth; 12, polytetrafluoroethylene outer sheath; 13, cable; 14, joint; 15, sleeve; 16, sealing ring; 17, abutting rod; 18, limiting plate; 19, torsion spring. Specific implementation

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the present disclosure clearer, the technical scheme of the embodiments of the present disclosure will be described clearly and completely below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present disclosure.

[0030] Please refer to Figures 1-4 The novel high-temperature-resistant and corrosion-resistant medium-voltage power cable provided by the embodiment has the effects of high-temperature resistance and corrosion resistance, the double high-silica glass fiber yarn layer 2 improves the high-temperature resistance of the conductor, has high-temperature resistance, corrosion resistance, excellent tensile resistance, heat aging resistance and other properties, can normally and stably work under the rated high temperature, the electric energy transmission performance is not affected, and the service life of the cable 13 is ensured to be long.

[0031] In the further provided embodiment of the utility model, the flame-retardant alkali-free glass fiber rope filling layer is provided with the double polytetrafluoroethylene fiber cloth 8 outside.

[0032] Further, the double polytetrafluoroethylene fiber cloth 8 is provided with the ceramic thermoplastic elastomer isolation sleeve 9 outside, and the high-temperature resistance effect is further improved.

[0033] Further, the ceramicized thermoplastic elastomer isolation sleeve 9 is provided with a steel wire armor 10, which improves the tensile strength of the product.

[0034] In the further provided embodiment, the steel wire armor 10 is externally provided with a first polytetrafluoroethylene fiber cloth 11, and the first polytetrafluoroethylene fiber cloth 11 is externally provided with a polytetrafluoroethylene outer sheath 12.

[0035] In the provided embodiment, the two cables 13 are provided with joints 14 and bushings 15 on opposite sides, respectively, the joints 14 are externally fixedly connected with sealing rings 16 matched with the bushings 15, the joints 14 are externally rotatably connected with a plurality of abutting rods 17, the bushings 15 are internally fixedly connected with limiting plates 18 matched with the abutting rods 17, the sealing rings 16 seal the connection between the joints 14 and the bushings 15, the joints 14 are inserted into the bushings 15, so that the torsion spring 19 is twisted to store force, when the joints 14 are completely inserted into the bushings 15, the abutting rods 17 move beyond the limiting plates 18, the abutting rods 17 are pushed to open and abut against the limiting plates 18 by the elastic force of the torsion spring 19, so as to lock the joints 14 in the bushings 15, thereby increasing the stability of the cable 13 connection.

[0036] Specifically, one end of each abutting rod 17 is fixedly connected with the torsion spring 19, and the other end of the torsion spring 19 is fixedly connected with the joint 14, so that the abutting rod 17 is opened and abuts against the limiting plate 18 by the torsion spring 19, thereby ensuring the stability of the joint 14 and the bushing 15 connection.

[0037] In the utility model, the nickel-plated copper conductor 1 uses GB / T 3956, has the effect of high temperature resistance and corrosion resistance, the surface of the nickel-plated copper conductor 1 is wrapped with double high-silicon glass fiber yarn layers 2, the high temperature resistance of the conductor is improved, the semi-conductive conductor shielding layer 3, the crosslinked polytetrafluoroethylene insulation layer 4 and the semi-conductive insulation shielding layer 5 are extruded and packed, the copper band shielding layer 6 is wrapped outside the wire core, the three-core cable 13 is filled with flame-retardant alkali-free glass fiber rope layers 7, after cabling, the double polytetrafluoroethylene fiber cloth 8 is wrapped, and the ceramicized thermoplastic elastomer isolation sleeve 9 is extruded and packed, the high temperature resistance effect is further improved, the galvanized steel wire armor 10 is used outside the isolation sleeve, the tensile strength of the product is improved, finally, the first polytetrafluoroethylene fiber cloth 11 is extruded and packed outside the steel wire armor 10, and finally, the ceramicized thermoplastic elastomer outer sheath is extruded and packed outside the first polytetrafluoroethylene fiber cloth 11.

[0038] The above has only described certain exemplary embodiments of the present application by way of illustration, and it is needless to say that the described embodiments can be modified in various ways without departing from the spirit and scope of the present application for those skilled in the art. Therefore, the above drawings and descriptions are illustrative in nature, and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A novel high-temperature and corrosion-resistant medium-voltage power cable, comprising a nickel-plated copper conductor (1), characterized in that: The surface of the nickel-plated copper conductor (1) is provided with a double layer of high-silica glass fiber yarn (2). The double layer of high-silica glass fiber yarn (2) is provided with a conductor shielding layer (3), a polytetrafluoroethylene insulation layer (4), an insulation shielding layer (5) and a copper strip shielding layer (6) in sequence. The copper strip shielding layer (6) is provided with a flame-retardant alkali-free glass fiber rope filling layer.

2. The novel high-temperature and corrosion-resistant medium-voltage power cable according to claim 1, characterized in that, The flame-retardant alkali-free glass fiber rope filling layer is covered with a double layer of polytetrafluoroethylene fiber cloth (8).

3. The novel high-temperature and corrosion-resistant medium-voltage power cable according to claim 2, characterized in that, The double-layer polytetrafluoroethylene fiber cloth (8) is provided with a ceramicized thermoplastic elastomer isolation sleeve (9).

4. A novel high-temperature and corrosion-resistant medium-voltage power cable according to claim 3, characterized in that, The ceramicized thermoplastic elastomer isolation sleeve (9) is provided with steel wire armor (10).

5. A novel high-temperature and corrosion-resistant medium-voltage power cable according to claim 4, characterized in that, The steel wire armor (10) is provided with a first polytetrafluoroethylene fiber cloth (11), and the first polytetrafluoroethylene fiber cloth (11) is provided with a polytetrafluoroethylene outer sheath (12).

6. A novel high-temperature and corrosion-resistant medium-voltage power cable according to claim 1, characterized in that, It also includes two cables (13), with a connector (14) and a sleeve (15) respectively provided on the opposite side of the two cables (13). A sealing ring (16) adapted to the sleeve (15) is fixedly connected to the outside of the connector (14). Multiple abutment rods (17) are rotatably connected to the outside of the connector (14). A limiting plate (18) adapted to each abutment rod (17) is fixedly connected inside the sleeve (15).

7. A novel high-temperature and corrosion-resistant medium-voltage power cable according to claim 6, characterized in that, Each of the abutment rods (17) has one end of a torsion spring (19) fixedly connected to it, and the other end of the torsion spring (19) is fixedly connected to the connector (14).

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