CN211265110U

CN211265110U - Superconducting cable with long service life

Info

Publication number: CN211265110U
Application number: CN201921427993.5U
Authority: CN
Inventors: 田波
Original assignee: 田波
Current assignee: Heilongjiang Huafeng Huilong cable (Group) Co.,Ltd.
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-08-14
Anticipated expiration: 2029-08-30

Abstract

The utility model discloses a long service life's superconducting cable, the cable comprises a cable body, the surface coating of cable body has the oversheath, the oversheath includes insulating layer, water blocking layer and low smoke halogen-free layer, the inboard parcel of insulating layer has the water blocking layer, the inboard parcel of water blocking layer has low smoke halogen-free layer. The utility model discloses an increase the insulating layer in the inside of outer sheath and can play insulating effect, prevent that the damaged electric leakage phenomenon of appearance of cable when using, and water blocking layer and low smoke and zero halogen layer can prevent inside infiltration, effectually prevent to take place to cut off the power supply or electric leakage, the cable can not produce the burning when the conflagration breaing out, low smoke and zero halogen material can prevent that the cable from producing toxic gas simultaneously, effectual increase rescue efficiency, can increase the holistic intensity of cable through the glass fiber layer, guarantee that the cable can not break in the distortion when using, and the inner sheath can effectively protect the cable core, guarantee power transmission's stability.

Description

Superconducting cable with long service life

Technical Field

The utility model relates to the technical field of cables, specifically a long service life's superconducting cable.

Background

The cable is characterized in that the cable is laid and erected underground, and has higher requirements on the fireproof and waterproof capabilities, the cable can emit heat in the using process, the outer layer is easy to age and crack due to poor heat dissipation capability, and the like, so that a fire disaster occurs, the service life is influenced, and the transmission efficiency of electric power is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a long service life's superconducting cable possesses the advantage that fire prevention and waterproof performance are good, has solved the cable and can send the heat in the use, and the heat ability of dispelling is poor easily leads to outer ageing fracture etc. and the conflagration breaks out, influences life's problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a long service life's superconducting cable, includes the cable body, the surface coating of cable body has the oversheath, the oversheath includes insulating layer, water-blocking layer and low smoke halogen-free layer, the inboard parcel of insulating layer has the water-blocking layer, the inboard parcel of water-blocking layer has low smoke halogen-free layer, the inside parcel of oversheath has the glass fiber layer, the inboard parcel on glass fiber layer has the inner sheath, the inside parcel of inner sheath has the cable core, the quantity of cable core is five strands, and five strand cable core intertwines together.

Preferably, the outer sheath is made of low-smoke halogen-free polyethylene material, and the inner sheath is made of synthetic mica.

Preferably, the inner sheath includes around covering and flame retardant fiber layer, the inside parcel of covering has the flame retardant fiber layer, evenly distributed has fire-retardant filler around between covering and the flame retardant fiber layer, and the surface bonding of fire-retardant filler and flame retardant fiber layer.

Preferably, the surface of the waterproof layer is provided with a waterproof belt, and the waterproof belt is formed by mutually twisting a plurality of strands of waterproof belts and is uniformly wound and wrapped on the surface of the waterproof layer.

Preferably, the surface of the cable body is provided with a rubber material protective layer, and the protective layer is made of an insulating material.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses an increase the insulating layer in the inside of outer sheath and can play insulating effect, prevent that the cable damage from appearing electric leakage phenomenon when using, and water-blocking layer and low smoke and zero halogen layer can prevent inside infiltration, effectually prevent to take place outage or electric leakage, the cable can not produce the burning when the conflagration breaing out, low smoke and zero halogen material can prevent that the cable from producing toxic gas simultaneously, effectual increase rescue efficiency, can increase the holistic intensity of cable through the glass fiber layer, guarantee that the cable distortion can not break when using, and the inner sheath can effectively protect the cable core, guarantee power transmission's stability, it can send the heat to have solved the cable simultaneously in the use, the poor outer ageing fracture that leads to of heat dissipation ability, the conflagration breaks out, influence life's problem.

2. The utility model discloses a to the inside of sheath including covering and flame retardant fiber layer setting, can strengthen the guard action to the cable core, effectually completely cut off external fire source, and the cable core is formed by stranded copper wire transposition, has lower resistivity, and electric conductive property is better, effectively improves the fire behavior and the security performance of cable.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a sectional view of the inner structure of the outer sheath of the present invention;

fig. 3 is the inner sheath inner structure cross-sectional view of the utility model.

In the figure: 1. a cable body; 2. an outer sheath; 21. an insulating layer; 22. a water resistant layer; 23. a low smoke halogen-free layer; 3. a glass fiber layer; 4. an inner sheath; 41. wrapping a covering; 42. a flame-retardant fiber layer; 5. a cable core; 6. a flame retardant filler.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description herein, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings to facilitate the description of the patent and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting of the patent. In the description of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-3, a superconducting cable with a long service life includes a cable body 1, a rubber material protection layer is disposed on the surface of the cable body 1, and the protection layer is made of an insulating material, an outer sheath 2 is wrapped on the surface of the cable body 1, the outer sheath 2 includes an insulating layer 21, a water blocking layer 22 and a low smoke halogen-free layer 23, the inner side of the insulating layer 21 is wrapped with the water blocking layer 22, the inner side of the water blocking layer 22 is wrapped with the low smoke halogen-free layer 23, the outer sheath 2 is made of a low smoke halogen-free polyethylene material, the inner sheath 4 is made of synthetic mica, the outer sheath 2 is wrapped with a glass fiber layer 3, the surface of the water blocking layer 22 is provided with a waterproof tape, and a plurality of waterproof tapes are twisted with each other and are uniformly wrapped on the surface of the water blocking layer 22, the inner side of the glass fiber layer 3 is wrapped with an inner sheath 4, the flame-retardant fiber layer 42 is wrapped inside the wrapping layer 41, the flame-retardant filler 6 is uniformly distributed between the wrapping layer 41 and the flame-retardant fiber layer 42, the surface of the flame-retardant filler 6 is bonded with the surface of the flame-retardant fiber layer 42, the wrapping layer 41 and the flame-retardant fiber layer 42 are arranged inside the inner sheath 4, the protection effect on the cable core 5 can be enhanced, the external fire source is effectively isolated, the cable core 5 is formed by stranding a plurality of copper wires, the electrical resistivity is lower, the electrical conductivity is better, the fire resistance and the safety performance of a cable are effectively improved, the cable core 5 is wrapped inside the inner sheath 4, the number of the cable cores 5 is five, the five cable cores 5 are mutually wound together, the insulating layer 21 is additionally arranged inside the outer sheath 2, the electric leakage phenomenon caused by the damage of the cable in use can be prevented, and the water blocking layer 22 and the low-smoke halogen-free layer 23 can prevent the internal water seepage, effectual outage or electric leakage of preventing from taking place, the cable can not produce the burning when the conflagration breaing out, low smoke and zero halogen material can prevent that the cable from producing toxic gas simultaneously, effectual increase rescue efficiency, can increase the holistic intensity of cable through glass fiber layer 3, guarantee that the cable can not break in the distortion when using, and inner sheath 4 can effectively protect cable core 5, guarantee power transmission's stability, the cable can send out the heat in the use simultaneously, the heat ability of dispelling is poor easily leads to outer ageing fracture etc. the conflagration takes place, influence life's problem.

The standard parts used in this document are commercially available, all the components in this document are customized according to the description of the specification and the drawings, and the connection relationship and specific structure between the layers in this document are all performed by the prior art, such as by mechanical methods, by adhesives, by various welding methods such as thermal welding, ultrasonic welding, flux, welding, and fusion crimping, and no specific description is made here.

During the use, can play insulating role through increasing insulating layer 21 in the inside of outer sheath 2, prevent that the cable damage from appearing electric leakage phenomenon when using, and water blocking layer 22 and low smoke no halogen layer 23 can prevent inside infiltration, the effectual outage or electric leakage that takes place that prevents, the cable can not produce the burning when the conflagration breaing out, low smoke and zero halogen material can prevent that the cable from producing toxic gas simultaneously, effectual increase rescue efficiency, can increase the holistic intensity of cable through glass fiber layer 3, guarantee that the cable can not take place the fracture in the distortion when using, and inner sheath 4 can effectively protect cable core 5, guarantee power transmission's stability, and cable core 5 is formed by stranded copper wire transposition, lower resistivity has, the electric conductive property is better, effectively improve the fire proofness and the security performance of cable.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A superconducting cable having a long service life, comprising a cable body (1), characterized in that: the surface coating of cable body (1) has oversheath (2), oversheath (2) include insulating layer (21), water-blocking layer (22) and low smoke halogen-free layer (23), the inboard parcel of insulating layer (21) has water-blocking layer (22), the inboard parcel of water-blocking layer (22) has low smoke halogen-free layer (23), the inside parcel of oversheath (2) has glass fiber layer (3), the inboard parcel of glass fiber layer (3) has inner sheath (4), the inside parcel of inner sheath (4) has cable core (5), the quantity of cable core (5) is five strands, and five strands of cable core (5) intertwine together.

2. A superconducting cable having a long service life according to claim 1, wherein: the outer sheath (2) is made of low-smoke halogen-free polyethylene material, and the inner sheath (4) is made of synthetic mica.

3. A superconducting cable having a long service life according to claim 1, wherein: the inner sheath (4) is including wrapping up covering (41) and flame retardant fiber layer (42), the inside parcel of wrapping up covering (41) has flame retardant fiber layer (42), evenly distributed has flame retardant filler (6) between wrapping up covering (41) and flame retardant fiber layer (42), and flame retardant filler (6) and the surface bonding of flame retardant fiber layer (42).

4. A superconducting cable having a long service life according to claim 1, wherein: waterproof belts are arranged on the surface of the waterproof layer (22), and the waterproof belts are formed by twisting multiple strands of waterproof belts and are uniformly wound and wrapped on the surface of the waterproof layer (22).

5. A superconducting cable having a long service life according to claim 1, wherein: the cable is characterized in that a rubber material protective layer is arranged on the surface of the cable body (1), and the protective layer is made of an insulating material.