Flame-retardant polyethylene sheath water-blocking power cable

Abstract

The utility model relates to the technical field of power cables, and discloses a flame-retardant polyethylene sheath water-blocking power cable, which comprises a split copper conductor, a semi-conductive Tetoron belt, a conductor shielding layer, an XLPE insulating layer, an insulating shielding layer, a semi-conductive water-blocking buffer belt, a corrugated aluminum sheath asphalt layer and a polyethylene graphite outer sheath, the semi-conductive Tetoron belt is fixedly arranged at the outer end of the segmented copper conductor, the conductor shielding layer is fixedly arranged at the outer end of the semi-conductive Tetoron belt, the XLPE insulating layer is fixedly arranged at the outer end of the conductor shielding layer, the insulating shielding layer is fixedly arranged at the outer end of the XLPE insulating layer, and the insulating shielding layer is fixedly arranged at the outer end of the XLPE insulating layer. And the semi-conductive water-blocking buffer strip is fixedly arranged at the outer end of the insulation shielding layer. According to the water-blocking power cable with the flame-retardant polyethylene sheath, the semi-conductive water-blocking buffer strip and the polyethylene graphite outer sheath are arranged, so that the waterproof and flame-retardant capabilities of the water-blocking power cable are improved, and the water-blocking performance and the flame-retardant performance of the cable can be effectively enhanced in the actual use process.

Description

Technical Field

[0001] The utility model relates to the technical field of power cables, in particular to a flame-retardant polyethylene sheath water-blocking power cable. Background Technique

[0002] Power cables are wire products used to transmit electrical energy, information, and realize the conversion of electromagnetic energy. However, due to the poor waterproof performance and flame retardancy of existing power cables, the service life is affected. Therefore, in order to improve the service life of the cables, a flame-retardant polyethylene sheath water-blocking power cable is needed.

[0003] When producing a flame-retardant polyethylene sheath water-blocking power cable, it needs to be processed through multiple processes. During processing, the production equipment of the flame-retardant polyethylene sheath water-blocking power cable is required to perform cutting operations on it. Content of the Utility Model

[0004] Technical problems to be solved: The purpose of the utility model is to provide a flame-retardant polyethylene sheath water-blocking power cable to solve the problems of poor waterproof performance and flame retardancy of power cables mentioned in the above background technique.

[0005] Technical solution: To achieve the above purpose, the utility model provides the following technical solution: A flame-retardant polyethylene sheath water-blocking power cable, including a segmented copper conductor, a semi-conductive Teflon tape, a conductor shielding layer, an XLPE insulation layer, an insulation shielding layer, a semi-conductive water-blocking buffer tape, a corrugated aluminum sheath asphalt layer, and a polyethylene graphite outer sheath. The semi-conductive Teflon tape is fixedly arranged at the outer end of the segmented copper conductor, the conductor shielding layer is fixedly arranged at the outer end of the semi-conductive Teflon tape, the XLPE insulation layer is fixedly arranged at the outer end of the conductor shielding layer, the insulation shielding layer is fixedly arranged at the outer end of the XLPE insulation layer, the semi-conductive water-blocking buffer tape is fixedly arranged at the outer end of the insulation shielding layer, the corrugated aluminum sheath asphalt layer is fixedly arranged at the outer end of the semi-conductive water-blocking buffer tape, and the polyethylene graphite outer sheath is fixedly arranged at the outer end of the corrugated aluminum sheath asphalt layer. By setting the semi-conductive water-blocking buffer tape, the water-blocking performance of the cable is enhanced. By setting the polyethylene graphite outer sheath, the flame retardancy of the cable is improved.

[0006] Preferably, the equipment body, the first support frame, the installation groove, the servo motor, the rotating shaft, the protective block, the bidirectional threaded rod, the installation block, the positioning nut, the support rod, the fixing plate, the load-bearing base, the support feet, the second support frame, the electric push rod, the push rod, the cutting knife, and the cutting groove. The first support frame is fixedly installed at the upper end of the equipment body, and the installation groove is fixedly arranged at the lower end of the first support frame. By setting the installation groove, the positioning nut can be conveniently limited.

[0007] Preferably, the servo motor is fixedly installed at the right end of the inner end of the installation groove, the rotating shaft is fixedly installed at the driving end of the left end of the servo motor, and the protective block is fixedly installed at the left end of the rotating shaft. By installing the servo motor and the rotating shaft, it is convenient to drive the bidirectional threaded rod to rotate.

[0008] Preferably, the bidirectional threaded rod is fixedly installed at the left end of the protective block, the installation block is fixedly installed at the left end of the inner end of the installation groove, and the left end of the bidirectional threaded rod is rotatably connected to the installation block. By installing the bidirectional threaded rod, it is convenient to drive the positioning nut to move in position.

[0009] Preferably, the positioning nuts are threadedly connected to the left and right ends of the outer end of the bidirectional threaded rod, the support rods are fixedly installed at the upper ends of the positioning nuts, and the fixing plates are fixedly installed at the left and right ends of the inner ends of the support rods. By installing the positioning nuts, it is convenient to drive the fixing plates to clamp and fix the cable.

[0010] Preferably, the load-bearing base is fixedly installed at the lower end of the equipment body, the support feet are fixedly installed at the lower end of the load-bearing base, and the second support frame is fixedly installed at the upper end of the equipment body. By installing the support feet, it is convenient to stably place the equipment.

[0011] Preferably, the electric push rod is fixedly installed at the lower end of the second support frame, the push rod is fixedly installed at the driving end of the lower end of the electric push rod, the cutting knife is fixedly installed at the lower end of the push rod, and the cutting groove is fixedly arranged at the upper end of the equipment body. By installing the electric push rod and the push rod, it is convenient to adjust the use height of the cutting knife and facilitate the cutting production operation of the cable.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] 1. For this flame-retardant polyethylene sheath water-blocking power cable, through the setting of the semiconductor resistive water-blocking buffer tape and the polyethylene graphite outer sheath, the waterproof and flame-retardant capabilities of the present utility model are improved. During actual use, the water-blocking performance of the cable can be effectively enhanced, as well as the flame-retardant performance;

[0014] 2. For the production equipment of this flame-retardant polyethylene sheath water-blocking power cable, through the installation of the servo motor and the rotating shaft, the fixing ability of the present utility model is improved. During actual use, the cable body can be conveniently fixed and placed, facilitating the cutting operation of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the production equipment of the present utility model;

[0016] Figure 2Schematic diagram of the cable cross-sectional structure of the present utility model;

[0017] Figure 3 Schematic diagram of the partial structure of the production equipment of the present utility model Figure 1 ;

[0018] Figure 4 Schematic diagram of the partial structure of the production equipment of the present utility model Figure 2 .

[0019] In the figure: 101, split copper conductor; 102, semi-conductive Teflon tape; 103, conductor shielding layer; 104, XLPE insulation layer; 105, insulation shielding layer; 106, semi-conductive water-resistant buffer tape; 107, corrugated aluminum sheath asphalt layer; 108, polyethylene graphite outer sheath; 201, equipment body; 202, first support frame; 203, installation groove; 204, servo motor; 205, rotating shaft; 206, protective block; 207, bidirectional threaded rod; 208, installation block; 209, positioning nut; 210, support rod; 211, fixing plate; 212, load-bearing base; 213, support foot; 214, second support frame; 215, electric push rod; 216, push rod; 217, cutting knife; 218, cutting groove. Specific implementation manner

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1 - 4, the present utility model provides a technical solution: a flame-retardant polyethylene sheathed water-blocking power cable, which includes a segmented copper conductor 101, a semi-conductive Teflon tape 102, a conductor shielding layer 103, an XLPE insulation layer 104, an insulation shielding layer 105, a semi-conductive water-blocking buffer tape 106, a corrugated aluminum sheath asphalt layer 107, and a polyethylene graphite outer sheath 108. The semi-conductive Teflon tape 102 is fixedly arranged at the outer end of the segmented copper conductor 101, the conductor shielding layer 103 is fixedly arranged at the outer end of the semi-conductive Teflon tape 102, the XLPE insulation layer 104 is fixedly arranged at the outer end of the conductor shielding layer 103, the insulation shielding layer 105 is fixedly arranged at the outer end of the XLPE insulation layer 104, the semi-conductive water-blocking buffer tape 106 is fixedly arranged at the outer end of the insulation shielding layer 105, the corrugated aluminum sheath asphalt layer 107 is fixedly arranged at the outer end of the semi-conductive water-blocking buffer tape 106, and the polyethylene graphite outer sheath 108 is fixedly arranged at the outer end of the corrugated aluminum sheath asphalt layer 107. By providing the semi-conductive water-blocking buffer tape 106, the water-blocking performance of the cable is improved. By providing the polyethylene graphite outer sheath 108, the flame-retardant protection performance of the cable is improved.

[0022] Production equipment for a flame-retardant polyethylene sheathed water-blocking power cable, including the equipment body 201, the first support frame 202, the installation groove 203, the servo motor 204, the rotating shaft 205, the protective block 206, the bidirectional threaded rod 207, the installation block 208, the positioning nut 209, the support rod 210, the fixing plate 211, the load-bearing base 212, the support feet 213, the second support frame 214, the electric push rod 215, the push rod 216, the cutting knife 217 and the cutting groove 218. The first support frame 202 is fixedly installed at the upper end of the equipment body 201, the installation groove 203 is fixedly arranged at the lower end of the first support frame 202, the servo motor 204 is fixedly installed at the right end of the inner end of the installation groove 203, the rotating shaft 205 is fixedly installed at the transmission end of the left end of the servo motor 204, the protective block 206 is fixedly installed at the left end of the rotating shaft 205, the bidirectional threaded rod 207 is fixedly installed at the left end of the protective block 206, the installation block 208 is fixedly installed at the left end of the inner end of the installation groove 203, the left end of the bidirectional threaded rod 207 is rotatably connected to the installation block 208, the positioning nuts 209 are threadedly connected to the left and right ends of the outer end of the bidirectional threaded rod 207, the support rods 210 are fixedly installed at the upper ends of the positioning nuts 209, the fixing plates 211 are fixedly installed at the left and right ends of the inner ends of the support rods 210, the load-bearing base 212 is fixedly installed at the lower end of the equipment body 201, the support feet 213 are fixedly installed at the lower end of the load-bearing base 212, the second support frame 214 is fixedly installed at the upper end of the equipment body 201, the electric push rod 215 is fixedly installed at the lower end of the second support frame 214, the push rod 216 is fixedly installed at the transmission end of the lower end of the electric push rod 215, the cutting knife 217 is fixedly installed at the lower end of the push rod 216, the cutting groove 218 is fixedly arranged at the upper end of the equipment body 201. Start the servo motor 204 to rotate the rotating shaft 205, so that the rotating shaft 205 drives the bidirectional threaded rod 207 to rotate, so that the positioning nuts 209 move towards each other on the bidirectional threaded rod 207, driving the fixing plate 211 to move. Start the electric push rod 215 to adjust the height of the push rod 216, so that it pushes the cutting knife 217 to cut the cable.

[0023] Working principle: By setting the semiconductor resistive water buffer belt 106, the water-blocking performance of the cable is improved. By setting the polyethylene graphite outer sheath 108, the flame-retardant protection performance of the cable is improved. When the cable needs to be produced and cut, first, the production equipment of the flame-retardant polyethylene sheath water-blocking power cable is stably placed at the position where it is needed through the support feet 213. The cable is placed on the equipment body 201. The servo motor 204 is started to rotate the rotating shaft 205, so that the rotating shaft 205 drives the bidirectional threaded rod 207 to rotate, and the positioning nut 209 moves oppositely on the bidirectional threaded rod 207, driving the fixing plate 211 to clamp and fix the cable. The electric push rod 215 is started to adjust the height of the push rod 216, so that it pushes the cutting knife 217 down to perform the cutting production operation on the cable.

[0024] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than a limitation on the protection scope of the present invention. Any simple modification or equivalent replacement made by those of ordinary skill in the art to the technical solution of the present invention does not depart from the essence and scope of the technical solution of the present invention.

Claims

1. Flame-retardant polyethylene sheathed water-blocking power cable, characterized by: The invention comprises a split copper conductor (101), a semi-conductive terephthalate belt (102), a conductor shielding layer (103), an XLPE insulating layer (104), an insulating shielding layer (105), a semi-conductive water-resistant buffer belt (106), a corrugated aluminum sheath asphalt layer (107) and a polyethylene graphite outer sheath (108), wherein the semi-conductive terephthalate belt (102) is fixedly arranged at the outer end of the split copper conductor (101), the conductor shielding layer (103) is fixedly arranged at the outer end of the semi-conductive terephthalate belt (102), and the The XLPE insulating layer (104) is fixedly arranged on the outer end of the conductor shielding layer (103), the insulating shielding layer (105) is fixedly arranged on the outer end of the XLPE insulating layer (104), the semiconducting water-repellent buffer zone (106) is fixedly arranged on the outer end of the insulating shielding layer (105), the corrugated aluminum sheath asphalt layer (107) is fixedly arranged on the outer end of the semiconducting water-repellent buffer zone (106), and the polyethylene graphite outer sheath (108) is fixedly arranged on the outer end of the corrugated aluminum sheath asphalt layer (107).

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