Unlock instant, AI-driven research and patent intelligence for your innovation.

Production process of communication cables for nuclear power plants

A communication cable and production process technology, applied in the field of communication cable production technology for nuclear power plants, can solve the problems of strength, flame retardancy, high temperature resistance and oxidation resistance that cannot meet the requirements of the society, and achieve performance improvement, widen application fields, and improve resistance. The effect of temperature level

Active Publication Date: 2021-07-16
CHANGZHOU BAYI CABLE +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, polyethylene as a cable insulation material cannot meet the requirements of the society in terms of strength, flame retardancy, high temperature resistance and oxidation resistance, and further research and development are needed

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Production process of communication cables for nuclear power plants
  • Production process of communication cables for nuclear power plants
  • Production process of communication cables for nuclear power plants

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as figure 1 Shown, the nuclear power plant communication cable production process of the present invention comprises the following steps:

[0044] S1, a number of discrete conductors are aggregated through the branching polymerization mechanism A to form the unit B to be stranded, and the units to be stranded are arranged in the following manner: the first conductor layer formed by the first conductor; A second conductor layer formed by second conductors, the second conductors surround the first conductors, and the first conductor layer extends along the center direction of the second conductor layer;

[0045] In this embodiment, a third conductor and a fourth conductor layer are also included, the third conductor layer is formed by a plurality of third conductors located on the second circumference, and the fourth conductor layer is formed by a plurality of fourth conductors located on the third circumference. Conductors are formed, the third conductor layer surr...

Embodiment 2

[0108] The insulating material adopts cross-linked polyethylene, and the cross-linked polyethylene includes: a polymer base material, a composite antioxidant, an anti-radiation agent, and a cross-linking sensitizer, and the parts by weight are:

[0109] Polymer substrate: 98 parts;

[0110] Composite antioxidant: 3 parts;

[0111] Anti-radiation agent: 4 parts;

[0112] Cross-linking sensitizer: 1.2 parts.

[0113] Described polymer substrate comprises: low-density polyethylene, ultra-low-density polyethylene, ethylene-octene copolymer, and parts by weight are:

[0114] Low-density polyethylene: 55 parts;

[0115] Ultra-low density polyethylene: 18 parts;

[0116] Ethylene-octene copolymer: 17 parts.

[0117] The ultra-low density polyethylene is Dow Chemical's VLDPE-DFDB-6005NT (cable material grade).

[0118] Described composite antioxidant comprises main antioxidant, auxiliary antioxidant and ultraviolet absorber, and the parts by weight are:

[0119] Main antioxidan...

Embodiment 3

[0125] The insulating material adopts cross-linked polyethylene, and the cross-linked polyethylene includes: a polymer base material, a composite antioxidant, an anti-radiation agent, and a cross-linking sensitizer, and the parts by weight are:

[0126] Polymer substrate: 100 parts;

[0127] Composite antioxidant: 3.5 parts;

[0128] Anti-radiation agent: 5 parts;

[0129] Cross-linking sensitizer: 1.5 parts.

[0130] Described polymer substrate comprises: low-density polyethylene, ultra-low-density polyethylene, ethylene-octene copolymer, and parts by weight are:

[0131] Low-density polyethylene: 60 parts;

[0132] Ultra-low density polyethylene: 20 parts;

[0133] Ethylene-octene copolymer: 22 parts.

[0134] The ultra-low density polyethylene is Dow Chemical's VLDPE-DFDB-6005NT (cable material grade).

[0135] Described composite antioxidant comprises main antioxidant, auxiliary antioxidant and ultraviolet absorber, and the parts by weight are:

[0136] Main antioxi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thermal resistanceaaaaaaaaaa
thicknessaaaaaaaaaa
lengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a production process of a communication cable for a nuclear power plant, which comprises the following steps: a plurality of discrete conductors pass through a branching polymerization mechanism to form a unit to be twisted, and the unit to be twisted is sent to the twisting mechanism for twisting to obtain a twisted cable. combined unit; the insulating material adopts cross-linked polyethylene, and cross-linked polyethylene includes: polymer base material, composite antioxidant, anti-radiation agent, and cross-linking sensitizer, and the parts by weight are: polymer base material: 95-105 parts; composite antioxidant: 2-4 parts; anti-radiation agent: 3-6 parts; cross-linking sensitizer: 1-2 parts; obtained by stranding multiple insulated wire cores with a cable forming machine A cable core; a plurality of cable cores are assembled and wrapped with a binding layer; the cable core formed with the binding layer passes through the second extruder of the second extruder under the traction of the second traction mechanism. The communication cable produced by the invention can be used in an environment higher than 90°C.

Description

technical field [0001] The invention relates to the technical field of cable manufacturing, in particular to a production process of communication cables for nuclear power plants. Background technique [0002] Communication cables generally consist of a plurality of mutually insulated wires or conductors to form a cable core, and a communication line with a sealed sheath on the outside. There are various laying methods such as overhead, direct burial, pipeline and underwater. According to the structure, it is divided into symmetrical, coaxial and integrated cables; according to the function, it is divided into field and permanent cables (underground and submarine cables). The communication cable has a wide transmission frequency band, a large communication capacity, and is less affected by external interference, but it is not easy to overhaul, and can transmit telephones, telegrams, data and images, etc. [0003] Communication cables for nuclear power plants have a cylindr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/02H01B13/14H01B13/24H01B3/44H01B7/02H01B7/18H01B7/28H01B7/29
CPCH01B3/44H01B7/0216H01B7/18H01B7/2806H01B7/29H01B13/02H01B13/141H01B13/148H01B13/24
Inventor 张立刚顾申杰朱洁樊亮陆佩芳刘成伟夏同方景弋卢燕芸王思聪郭文涛包敏葛成龙于志鹏苑春慧朱苏毓刘刚陈杰王将朱峰蒲守林洪启付鲍蕾蕾史佳麟
Owner CHANGZHOU BAYI CABLE