CN208315275U - A kind of low frequency radiation protection used in nuclear power station information transmission cable - Google Patents
A kind of low frequency radiation protection used in nuclear power station information transmission cable Download PDFInfo
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- CN208315275U CN208315275U CN201721896083.2U CN201721896083U CN208315275U CN 208315275 U CN208315275 U CN 208315275U CN 201721896083 U CN201721896083 U CN 201721896083U CN 208315275 U CN208315275 U CN 208315275U
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- layer
- nuclear power
- information transmission
- low frequency
- power station
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- 230000005855 radiation Effects 0.000 title claims abstract description 33
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- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 claims abstract description 5
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- 239000010949 copper Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 6
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000012212 insulator Substances 0.000 claims description 2
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model creation provides a kind of low frequency radiation protection used in nuclear power station information transmission cable and is successively arranged inner cushion layer, shielded layer, sheath, armor and outer jacket from the inside to the outside on the outside of wrapping layer including the cable core being coated on inside wrapping layer；The twining package tape includes the polyester layer set gradually from inside to outside and Kapton；The cable core includes several conductor assemblies, and each conductor assembly includes several conductors equipped with insulating layer.The utility model, which creates the cable product provided, has the characteristics such as good radiation hardness, wear-resistant, fire-retardant, low decaying, tension, resistance to compression, and radiation hardness ability is very strong, can use safely in the nuclear power plant environment of height radiation, while service life is also very long.
Description
Technical field
The invention belongs to optical cable production technical field, passes more particularly, to a kind of low frequency radiation protection used in nuclear power station information
Transmission cable.
Background technique
Currently, tending in the world from lkV low-voltage cable, 6-35kV mesolow cable to 110kV high-tension cable with friendship
Join polyethylene (XLPE) insulated cable.Wherein XLPE production technology mainly divides 3 major class: crosslinking with radiation mainly produces electrical equipment use
Cable；Crosslinked with silicane uses silane as crosslinking agent, is crosslinked PE under the action of catalyst；Chemical crosslinking is with low density polyethylene (LDPE)
It (LDPE) is base-material, organic peroxide is crosslinking agent, is suitable for the cable that the conditions such as high temperature, high pressure, high frequency use, and can be manufactured
6-35kV, 35110kV medium and high voltage cable, Aviation cable control cable, and production technology is mainly invented and pushed away by GE company of the U.S.
Wide application.
In the early 1980s, external just had developed low-smoke halogen-free inflaming-retarding cable, to the later period eighties, develop
Second generation wire and cable halogen-free flame-retardant cable.Compared with first generation product, second generation halogen-free flame-retardant cable is in addition in anti-flammability
Energy, toxicity, corrosive nature, mechanical property, improves to some extent on electrical property outer at smokiness, and high speed extrusion performance is a big feature.
It is Japanese annual to promulgate more than 50 parts patent related with halogen-free flame-retardant cable, these inventions are most belong to Hitachi Cable Ltd.,
Japanese Union Carbide Corporation and Teng Cang, Sumitomo isoelectric line company.They attempt to solve halogen-free flameproof electricity with different methods
The main problem of cable can overcome the contradiction of flame retardant property and other performances and carry out overall balance to various performances.
Japan Atomic energy research facilities develop it is a kind of can with superhigh temperature that nuclear fusion reaction in resistance to nuclear reactor generates and
The cables of nuclear power of intense radiation, this cable can be more than 1000 DEG C in temperature, radiate under the mal-condition that dose rate is more than 100MG
It works normally, it is formed by one layer insulating of cladding outside conductor, and insulating layer is mainly by the oxygen containing 0.1%-2.0%
The fabric of compound Si-N-O is formed, and sieve is one layer and is formed by the inorganic insulating material that ceramic performed polymer polymer treatment is crossed
's.
And the scientific and technological development direction in Russia inner cable engineering is dependent on and examines whether have innovation.These
Research method includes the development and tissue production, the research of resistance to combustion cable of the cross-linked polyethylene insulated cable of high voltage appearance, especially
Focus on the development of the fiber optic cables industry of broadband access system.
According to the planning of national departments concerned, the war of 40,000,000 KW will be realized to the nuclear power operation installed capacity of the year two thousand twenty China
Slightly target, it means that Nuclear Energy in China is " heating ".And cables of nuclear power is an important electric component of nuclear power station,
The condition of its field of employment is harsher, and the requirement of secure context is high, not only to have the general characteristic of common cable, also to have
It is specific environment resistant, such as radiation resistance, resistance to LOCA (loss of-coolant accident (LOCA)) be fire-retardant.
Since the growth requirement of the cables of nuclear power in China and technical support disconnect, in face of external technology blockage and to state
The outer serious dependence of cables of nuclear power, these import cable products are expensive, consume a large amount of foreign exchanges, so exploitation nuclear power station
It is an arduousness and urgent task with cable.
Summary of the invention
In view of this, the invention is intended to overcome above-mentioned defect existing in the prior art, a kind of anti-spoke of low frequency is proposed
Penetrate used in nuclear power station information transmission cable.
In order to achieve the above objectives, the technical solution of the invention is achieved in that
A kind of low frequency radiation protection used in nuclear power station information transmission cable, including the cable core being coated on inside wrapping layer, wrapped
Layer outside is successively arranged inner cushion layer, shielded layer, sheath, armor and outer jacket from the inside to the outside；The twining package tape include from
It is interior to the polyester layer set gradually outside and Kapton；The cable core includes several conductor assemblies, each conductor group
Part includes several conductors equipped with insulating layer.
Further, the conductor uses pure cu conductor or silver-plated copper conductor.
Further, each conductor assembly includes two mutually twisted conductors, this two conductor passes through difference on the outside of the two
The insulator separation of setting.
Further, the insulating layer uses Radiation Crosslinked Polyethylene.
Further, the shielded layer uses plastic-aluminum combined belt or copper strip layer.
Further, the armor uses steel-tape armouring layer.
Compared with the existing technology, the invention has the advantage that
The cable product that the invention provides has good radiation hardness, wear-resistant, fire-retardant, low decaying, tension, resistance to compression
Etc. characteristics, radiation hardness ability is very strong, can use safely in the nuclear power plant environment of height radiation, while service life is also very
It is long.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide to further understand the invention, present invention wound
The illustrative embodiments and their description made are used to explain the present invention creation, do not constitute the improper restriction to the invention.?
In attached drawing:
Fig. 1 is the structural schematic diagram of the invention.
Description of symbols:
1- wrapping layer；2- cable core；3- inner cushion layer；4- shielded layer；5- armor；6- outer jacket；7- conductor；8- insulating layer；
9- sheath.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the invention can
To be combined with each other.
In the description of the invention, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description the invention and simplifies description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For the limitation to the invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more of the features.In the description of the invention, unless separately
It is described, the meaning of " plurality " is two or more.
In the description of the invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments creates.
A kind of low frequency radiation protection used in nuclear power station information transmission cable, as shown in Figure 1, being coated on inside wrapping layer 1
Cable core 2 is successively arranged inner cushion layer 3, shielded layer 4, sheath 9, armor 5 and outer jacket in 1 outside of wrapping layer from the inside to the outside
6；The twining package tape includes the polyester layer set gradually from inside to outside, Kapton；The cable core 2 includes several conductors
Component, each conductor assembly include several conductors 7 equipped with insulating layer 8.
It should be pointed out that twining package tape is radiation hardness band, when use, can play moisture-proof role, optional real at one
It applies in example, irradiation semiconductive belt can also be coated on the outside of Kapton.So that cable is in fire-retardant, ageing-resistant and resistance to purple
Outside line and other irradiation behaviours greatly improve, to improve the security performance of cable, extend the service life of cable, avoid pair
The damage of cable.
When by external impacts (or extruding), outer jacket forms first of measuring body barrier, effectively carries, meanwhile, with
Sheath and inner cushion layer play the role of buffering jointly, since shielded layer is arranged between protective layer and inner cushion layer, shielded layer
Almost without directly it is loaded, therefore, be pressurized when, not vulnerable, therefore, the pressure resistance of this cable and shock resistance are very good,
The reliability used has been effectively ensured.
Above-mentioned conductor 7 uses pure cu conductor or silver-plated copper conductor, guarantees high-purity, the high conductivity of transmission medium.Wherein,
Each conductor assembly includes two mutually twisted conductors 7, this two conductor by respectively arranged insulating layer on the outside of the two every
From, stable structure, durability is good.
Above-mentioned insulating layer 8 uses Radiation Crosslinked Polyethylene, is added with ultrahigh molecular weight (UHMW) polyethylene, radiation hardness in constituent material
Auxiliary agent, antioxidant, compatilizer, fire retardant, cross-linking aid and lubricant etc..
Above-mentioned shielded layer 4 uses aluminium-plastic tape shielded layer or copper strip shielding layer.Inner cushion layer is cross-linking radiation polyolefin, interior
Sheath is cross-linking radiation polyolefin, and oversheath is cross-linking radiation polyolefin, improves shock resistance, the pressure resistance performance of cable, also,
With good radiation protection ability.
In an alternative embodiment, gasket for packing can be set between shielded layer and sheath, it is effective to improve electricity
The pressure resistance of cable, tensile property.Above-mentioned armor 5 uses steel-tape armouring layer, and inner conductor is effectively protected, further functions as shielding
With the effect of protection cable, the service life of cable is provided.
The cable product that the invention provides has good radiation hardness, wear-resistant, fire-retardant, low decaying, tension, resistance to compression
Etc. characteristics, radiation hardness ability is very strong, can use safely in the nuclear power plant environment of height radiation, while service life is also very
It is long.
The foregoing is merely the preferred embodiments of the invention, are not intended to limit the invention creation, all at this
Within the spirit and principle of innovation and creation, any modification, equivalent replacement, improvement and so on should be included in the invention
Protection scope within.
Claims (6)
1. a kind of low frequency radiation protection used in nuclear power station information transmission cable, it is characterised in that: including the cable being coated on inside wrapping layer
Core is successively arranged inner cushion layer, shielded layer, sheath, armor and outer jacket from the inside to the outside on the outside of wrapping layer；It is described wrapped
Layer includes the polyester layer set gradually from inside to outside, Kapton；The cable core includes several conductor assemblies, each to lead
Body component includes several conductors equipped with insulating layer.
2. a kind of low frequency radiation protection used in nuclear power station information transmission cable according to claim 1, it is characterised in that: described to lead
Body uses pure cu conductor or silver-plated copper conductor.
3. a kind of low frequency radiation protection used in nuclear power station information transmission cable according to claim 1, it is characterised in that: each to lead
Body component includes two mutually twisted conductors, this two conductor passes through respectively arranged insulator separation on the outside of the two.
4. a kind of low frequency radiation protection used in nuclear power station information transmission cable according to claim 1, it is characterised in that: described exhausted
Edge layer uses Radiation Crosslinked Polyethylene.
5. a kind of low frequency radiation protection used in nuclear power station information transmission cable according to claim 1, it is characterised in that: the screen
Layer is covered using plastic-aluminum combined belt or copper strip layer.
6. a kind of low frequency radiation protection used in nuclear power station information transmission cable according to claim 1, it is characterised in that: the armour
It fills layer and uses steel-tape armouring layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721896083.2U CN208315275U (en) | 2017-12-29 | 2017-12-29 | A kind of low frequency radiation protection used in nuclear power station information transmission cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721896083.2U CN208315275U (en) | 2017-12-29 | 2017-12-29 | A kind of low frequency radiation protection used in nuclear power station information transmission cable |
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| Publication Number | Publication Date |
|---|---|
| CN208315275U true CN208315275U (en) | 2019-01-01 |
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| CN201721896083.2U Expired - Fee Related CN208315275U (en) | 2017-12-29 | 2017-12-29 | A kind of low frequency radiation protection used in nuclear power station information transmission cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108133786A (en) * | 2017-12-29 | 2018-06-08 | 通鼎互联信息股份有限公司 | A kind of low frequency radiation protection used in nuclear power station information transmission cable |
-
2017
- 2017-12-29 CN CN201721896083.2U patent/CN208315275U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108133786A (en) * | 2017-12-29 | 2018-06-08 | 通鼎互联信息股份有限公司 | A kind of low frequency radiation protection used in nuclear power station information transmission cable |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190101 |
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| CF01 | Termination of patent right due to non-payment of annual fee |