CN217822146U

CN217822146U - Nuclear power station cable with high radiation resistance

Info

Publication number: CN217822146U
Application number: CN202221737298.0U
Authority: CN
Inventors: 许德俊; 许德晨
Original assignee: Jing Feng Group Co ltd
Current assignee: Jing Feng Group Co ltd
Priority date: 2022-07-07
Filing date: 2022-07-07
Publication date: 2022-11-15
Anticipated expiration: 2032-07-07

Abstract

The utility model discloses a nuclear power station cable that radiation resistance can be strong relates to the cable field. The method comprises the following steps: the cable comprises a cable core and a protective outer layer for protecting the cable core; the cable core comprises a power connection lead and a plurality of communication leads; the protective outer layer comprises a rubber outer layer, an oxygen isolation layer, a shielding layer, a reinforcing support frame and a heat insulation layer, and filling cotton is arranged between the inner wall of the heat insulation layer and the cable core; the reinforcing support frame comprises four reinforcing strips, and a plurality of connecting rings are arranged between the sides of the reinforcing strips in a surrounding and penetrating manner. The utility model discloses a, replace current armor through the design to strengthening the support frame, utilize four to strengthen the connection structure between strip and a plurality of go-between to ensure support body structure's stability, form some cavitys in cable inside through connected mode between them again simultaneously, so both saved the material of inside armor preparation, utilize the cavity to form heat dissipation space simultaneously for whole cable uses more stability.

Description

Nuclear power station cable with high radiation resistance

Technical Field

The utility model relates to the technical field of cables, specifically be a nuclear power station cable that radiation resistance can be strong.

Background

In the communication transmission process of the nuclear power station, an indispensable connecting piece is a cable, and the cable used by the nuclear power station needs to have extremely strong radiation resistance.

The existing nuclear power station cable is subjected to radiation protection outside the cable core through the outer protection layer, the armor layer arranged between the outer protection layer and the cable core is used for protecting the main structure of the cable core, and the armor layer is designed into an integral coating type, so that production materials are increased, and meanwhile, the heat dissipation capacity of the cable which is too tightly influenced inside the cable is also realized.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model discloses a nuclear power station cable that radiation resistance can be strong to solve the problem that proposes in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a nuclear power station cable with strong radiation resistance performance comprises: the cable comprises a cable core and a protective outer layer for protecting the cable core;

the cable core comprises a power connection lead and a plurality of communication leads;

the protective outer layer comprises a rubber outer layer, an oxygen isolation layer, a shielding layer, a reinforcing support frame and a heat insulation layer, and filling cotton is arranged between the inner wall of the heat insulation layer and the cable core;

the reinforcing support frame comprises four reinforcing strips, and a plurality of connecting rings are arranged between the sides of the reinforcing strips in a surrounding and penetrating manner.

Preferably, the outer layer of rubber is sleeved on the outer wall of the oxygen isolation layer, the outer wall of the shielding layer is sleeved with the oxygen isolation layer, the outer walls of the four reinforcing strips are sleeved with the shielding layer, and the heat insulation layer is sleeved in the surrounding space of the inner walls of the four reinforcing strips.

Preferably, the middle parts of the sides of the four reinforcing strips are provided with a plurality of connecting through grooves, and the connecting rings are arranged in the connecting through grooves in an inserting manner.

Preferably, the front and the back of the inner wall of the plurality of connecting through grooves are provided with blocking grooves, the inner wall and the outer wall of the connecting ring are fixedly connected with blocking blocks, and the eight blocking blocks are respectively inserted into the eight blocking grooves.

Preferably, the oxygen isolation layer is made of halogen-free flame-retardant elastic filler material with oxygen index not less than%.

Preferably, the shielding layer is made of an aluminum-plastic composite tape material.

Preferably, the middle part on oxygen layer is seted up a plurality of logical grooves of placing, and is a plurality of it all alternates and is provided with the numb lines to place logical inslot.

The utility model discloses a nuclear power station cable that radiation resistance can be strong, its beneficial effect who possesses as follows:

the utility model discloses a, replace current armor through the design to strengthening the support frame, utilize four to strengthen the connection structure between strip and a plurality of go-between to ensure support body structure's stability, form some cavitys in cable inside through connected mode between them again simultaneously, so both saved the material of inside armor preparation, utilize the cavity to form heat dissipation space simultaneously for whole cable uses more stability.

Drawings

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

fig. 2 is a top view of the reinforcing brace of the present invention;

fig. 3 is a schematic structural view of the reinforcing bracket of the present invention.

In the figure: 1. an outer rubber layer; 2. an oxygen barrier layer; 201. hemp thread; 3. a shielding layer; 4. a reinforcing strip; 401. a connecting ring; 402. a blocking block; 5. a thermal insulation layer; 6. filling cotton; 7. connecting a power lead; 8. a communication conductor.

Detailed Description

The embodiment of the utility model discloses nuclear power station cable that radiation resistance can be strong, as shown in fig. 1-3, include: the cable comprises a cable core and a protective outer layer for protecting the cable core;

the cable core comprises a power connection lead 7 and a plurality of communication leads 8;

connect the inside copper line that is of electric wire 7, there are many copper lines in communication wire 8, and connect the diameter of electric wire 7 copper line to be two-point fivefold of communication wire 8 copper line diameter, connect the outer wall that electric wire 7 and a plurality of communication wire 8 all to coat the rubber layer, connect electric wire 7 to set up in the positive center of whole cable, can make cable core intensity higher through the design of thicker single copper line.

The protective outer layer comprises a rubber outer layer 1, an oxygen isolation layer 2, a shielding layer 3, a reinforcing support frame and a heat insulation layer 5, and filling cotton 6 is arranged between the inner wall of the heat insulation layer 5 and the cable core;

the outer 1 cover of rubber is established at the outer wall that separates oxygen layer 2, separates the outer wall that the oxygen layer 2 cover was established at shielding layer 3, and the outer wall of four enhancement strips 4 is established to shielding layer 3 cover, and insulating layer 5 cup joints in the enclosure space of four enhancement strip 4 inner walls.

The outer 1 adoption insulating rubber processing of rubber forms, can accomplish the external insulation protection of whole cable like this well, and the outer 1 thickness of rubber sets up to two millimeters, has fine wear resistance.

The shielding layer 3 is made of an aluminum-plastic composite belt material, the aluminum-plastic composite belt is an ELE type aluminum-plastic composite belt, ethylene-methacrylic acid copolymer (EMAA) resin is coated on the surfaces of an aluminum-based belt A and an aluminum-based belt B to achieve a certain degree of bonding, the color is natural color or blue, and the shielding layer 3 can be woven by tinned copper wires;

the oxygen isolation layer 2 is made of halogen-free flame-retardant elastic filler material with oxygen index not less than 40%;

separate the middle part on oxygen layer 2 and seted up a plurality of logical grooves of placing, a plurality of places all to alternate in logical inslot and be provided with numb lines 201, can fine promote the intensity of the outer inoxidizing coating of cable through numb lines 201, make it can strengthen certain tensile resistance.

The reinforcing support frame comprises four reinforcing strips 4, and a plurality of connecting rings 401 are arranged between the sides of the four reinforcing strips 4 in a surrounding and penetrating manner;

the reinforcing strips 4 and the connecting ring 401 are both made of cross-linked polyethylene materials, have good flexibility and good thermal conductivity, and complete heat dissipation of the cable core.

The middle parts of the sides of the four reinforcing strips 4 are provided with a plurality of connecting through grooves, and the connecting rings 401 are arranged in the connecting through grooves in an inserting manner;

the front and the back of the inner wall of the through grooves are provided with blocking grooves, the inner wall and the outer wall of the connecting ring 401 are fixedly connected with blocking blocks 402, and the eight blocking blocks 402 are arranged in the eight blocking grooves in a penetrating mode respectively.

The working principle is as follows: refer to fig. 1-3;

when the cable is cut off, the four reinforcing strips 4 of the reinforcing support frame keep stable in position under the connection of the connecting ring 401, and meanwhile, under the limitation of the blocking block 402 and the inner wall of the blocking groove, the cutting-off pulling operation of the cable cannot cause the damage of the reinforcing support frame structure, so that the structure of the whole reinforcing support frame can be more stable.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A nuclear power station cable with strong radiation resistance is characterized by comprising: the cable comprises a cable core and a protective outer layer for protecting the cable core;

the cable core comprises a power connection lead (7) and a plurality of communication leads (8);

the protective outer layer comprises a rubber outer layer (1), an oxygen isolation layer (2), a shielding layer (3), a reinforcing support frame and a heat insulation layer (5), and filling cotton (6) is arranged between the inner wall of the heat insulation layer (5) and the cable core;

the reinforcing support frame comprises four reinforcing strips (4), and a plurality of connecting rings (401) are arranged between the sides of the reinforcing strips (4) in a surrounding and penetrating mode.

2. The cable for a nuclear power plant with strong radiation resistance as recited in claim 1, wherein: the outer layer (1) of rubber is sleeved on the outer wall of the oxygen separation layer (2), the outer wall of the shielding layer (3) is sleeved on the oxygen separation layer (2), the outer walls of the four reinforcing strips (4) are sleeved on the shielding layer (3), and the heat insulation layer (5) is sleeved in the surrounding space of the inner walls of the four reinforcing strips (4).

3. The cable for a nuclear power plant with strong radiation resistance as recited in claim 1, wherein: four a plurality of logical grooves of connecting have all been seted up in the middle part of strengthening strip (4) avris, go-between (401) alternate the setting and are being connected logical inslot.

4. The cable for a nuclear power plant with strong radiation resistance as recited in claim 3, wherein: blocking grooves are formed in the front and the back of the inner wall of each connecting through groove, blocking blocks (402) are fixedly connected to the inner wall and the outer wall of each connecting ring (401), and the eight blocking blocks (402) are respectively inserted into the eight blocking grooves.

5. The cable for a nuclear power plant with strong radiation resistance as recited in claim 1, wherein: the oxygen isolation layer (2) is made of halogen-free flame-retardant elastic filler material with oxygen index not less than 40%.

6. The cable for a nuclear power plant with strong radiation resistance as recited in claim 1, wherein: the shielding layer (3) is made of an aluminum-plastic composite belt material.

7. The cable for a nuclear power plant with strong radiation resistance as recited in claim 5, wherein: separate the middle part on oxygen layer (2) and seted up a plurality ofly and place logical groove, it is a plurality of place logical inslot all alternates and be provided with numb lines (201).