CN205645390U - Third generation is instrument cable for nuclear power station - Google Patents
Third generation is instrument cable for nuclear power station Download PDFInfo
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- CN205645390U CN205645390U CN201620253641.2U CN201620253641U CN205645390U CN 205645390 U CN205645390 U CN 205645390U CN 201620253641 U CN201620253641 U CN 201620253641U CN 205645390 U CN205645390 U CN 205645390U
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- instrument cable
- inner insulating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
Abstract
The utility model discloses a third generation is instrument cable for nuclear power station, including a plurality of insulation core, insulation core includes the conductor, the tin coating, crosslinked polyethylene the inner insulating layer, compound area subitem shielding layer is moulded to fire -retardant radiation cross -linking polyolefin external insulation layer and copper, the outside of conductor is provided with the tin coating, the outside of tin coating has set gradually crosslinked polyethylene the inner insulating layer, compound area subitem shielding layer is moulded to fire -retardant radiation cross -linking polyolefin external insulation layer and copper, a plurality of insulation core's the crowded package filling layer in the outside, the outside of filling layer has set gradually at a distance from the oxygen layer, weave total shielding layer of tinned copper wire and radiation cross -linking and do not have steamed low cigarette flame retardant polyolefin oversheath layer. The utility model discloses a third generation is instrument cable for nuclear power station installation is convenient, can endure to pull the harsh environment that design standard incident or super design standard incident lead to by third generation nuclear power to possess resistant high low temperature, heat -resisting ageing, resistant irradiation, resistant oil, acid and alkali -resistance, waterproof characteristic.
Description
Technical field
This utility model relates to a kind of generation Ⅲ nuclear power station instrument cable.
Background technology
" nuclear power Long-and Medium-term Development planning (2011 ~ the year two thousand twenty) " and " Nuclear Safety planning (2011 ~ the year two thousand twenty) " two parts of files that Executive Meeting of the State Council on October 24 in 2012 is approved are the Main Basiss that China's nuclear power is restarted.According to documentation requirements, according to " the highest safe new demand new nuclear power projects in the whole world ", say, that all new nuclear power projects must use Generation Ⅲ, and all second filial generation nuclear power projects of not building also must change third-generation technology into.It is reported, China will adjust nuclear power developing thinking, and on the premise of adhering to safety, nuclear power will be rapidly developed, and will reach 43,000,000 kilowatts to installation in 2015, and to the year two thousand twenty, be up to 90,000,000 kilowatts, and strive reaching 100,000,000 kilowatts.These nuclear power stations will use AP1000 technology comprehensively, and it has the power of higher nature and closes succinct design, has the construction cost that more reliable security performance is less.
For AP1000 technology, the supporting instrument cable in generation Ⅲ nuclear power station requires the service life possessing more than 60 years, and has cracking resistance, low cigarette, Halogen, radioprotective fire-retardant, resistance to, resistance to long term heat ageing, resistance to DBA(design basis accident) and the long-term submergence of DBA and high insulating property.
At present, nuclear power station instrument cable on market mainly applies to outside containment, also there is shell inner cable in research and development, but subject matter is that capability of resistance to radiation, service life, anti-cracking performance etc. do not reach requirement mostly, it is impossible to meet the harsh and unforgiving environments requirement of generation Ⅲ nuclear power station.
Accordingly, it would be desirable to a kind of new generation Ⅲ nuclear power station instrument cable is to solve the problems referred to above.
Utility model content
This utility model is for deficiency of the prior art, it is provided that the generation Ⅲ nuclear power station instrument cable of a kind of function admirable.
For solving above-mentioned technical problem, the technical scheme that generation Ⅲ nuclear power station of the present utility model instrument cable is used is:
A kind of generation Ⅲ nuclear power station instrument cable, including at least two strands of unit cores, described unit core be orderly arranged outside each packed layer, oxygen barrier layer, total screen layer and external sheath layer, described unit core includes two strands of mutual stranded heart yearns, lapping layer and sub-shield, described heart yearn be orderly arranged outside each described lapping layer and sub-shield, described heart yearn includes conductor, coating, inner insulating layer and external insulation layer, described conductor be orderly arranged outside each described coating, inner insulating layer and external insulation layer.
Further, described inner insulating layer and external insulation layer are respectively crosslinked polyethylene inner insulating layer and fire-retardant cross-linking radiation polyolefin external insulation layer, and described inner insulating layer and external insulation layer double-layer coextrusion are in the outside of described coating.The crosslinked polyethylene inner insulating layer of high electrical performance and fire-retardant cross-linking radiation polyolefin external insulation layer are set, use the composite insulation structure of double-layer coextrusion, it is achieved that high electrical performance, high flame resistance, the unification of high-mechanical property, meet design standard-required.
Further, described packed layer is squeezed between described unit core.Packed layer uses squash type to extrude structure, reduces and is filled the external diameter caused by strip and increase, and compact conformation, external diameter be little, lightweight, roundness high to make product have.
Further, described oxygen barrier layer is extruded in the outside of described packed layer.Extrude oxygen barrier layer, not only increase fire resistance, and combine together with packed layer, insulating barrier, improve the tensile strength properties of cable.
Further, described sub-shield and total screen layer are respectively aluminium-plastic tape sub-shield and tinned copper wire braided overall-shielding layer.Use aluminium-plastic tape separated-shielding and the total shielding construction of proof copper-wire braided, improve product interference free performance.
Further, described external sheath layer is irradiation crosslinking halogen-free low-smoke flame-proof polyolefin external sheath layer.External sheath layer uses irradiation crosslinking halogen-free low-smoke flame-proof polyolefin external sheath layer, uses step temperature to extrude technique, improves cable cracking resistance mechanical performance and meet low cigarette, Halogen, fire-retardant requirement.
Further, it is provided with glass layer between described total screen layer and external sheath layer.Glassfiber insulation is good, thermostability is strong, corrosion resistance is good, and mechanical strength is high, but shortcoming is that property is crisp, and wearability is poor, is disposed between outer jacket and sheath giving full play to its advantage, plays good protective action.
Beneficial effect: generation Ⅲ nuclear power station of the present utility model instrument cable mounting and installation is convenient, can tolerate and be pulled design basis event by generation Ⅲ nuclear power or harsh and unforgiving environments that super design reference event causes, and possess high-low temperature resistant, heat-proof aging, resistance to irradiation, oil resistant, acid and alkali-resistance, waterproof characteristic.
Accompanying drawing explanation
Fig. 1 is the structural representation of generation Ⅲ nuclear power station of the present utility model instrument cable.
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment, it is further elucidated with this utility model, it should be understood that these embodiments are merely to illustrate this utility model rather than limit scope of the present utility model, after having read this utility model, those skilled in the art all fall within the application claims limited range to the amendment of the various equivalent form of values of the present utility model.
As it is shown in figure 1, generation Ⅲ nuclear power station of the present utility model instrument cable, including at least two strands of unit cores 4, unit core 4 be orderly arranged outside each packed layer 5, oxygen barrier layer 6, total screen layer 7 and external sheath layer 8, oxygen barrier layer 6 is halogen-free flameproof fireproof oxygen-separation layer.Unit core 4 includes two strands of mutual stranded heart yearns 1, lapping layer 2 and sub-shield 3.Wherein, lapping layer 2 is polyester belt lapping layer.Heart yearn 1 be orderly arranged outside each lapping layer 2 and sub-shield 3, heart yearn 1 includes conductor 11, coating 12, inner insulating layer 13 and external insulation layer 14, conductor 11 be orderly arranged outside each coating 12, inner insulating layer 13 and external insulation layer 14.Wherein, coating 12 preferably tin coating.It is coated with coating for protection against corrosion outside conductor, is effectively increased electric conductivity and the antiseptic property of conductor.
Preferably, inner insulating layer 13 and external insulation layer 14 are respectively crosslinked polyethylene inner insulating layer and fire-retardant cross-linking radiation polyolefin external insulation layer, inner insulating layer 13 and external insulation layer 14 double-layer coextrusion in the outside of coating 12.The crosslinked polyethylene inner insulating layer of high electrical performance and fire-retardant cross-linking radiation polyolefin external insulation layer are set, use the composite insulation structure of double-layer coextrusion, it is achieved that high electrical performance, high flame resistance, the unification of high-mechanical property, meet design standard-required.
Wherein, packed layer 5 is squeezed between unit core 4.Packed layer 5 uses halogen-free flameproof resistance to exposed material seamless high pressure extrusion to fill.Packed layer uses squash type to extrude structure, reduces and is filled the external diameter caused by strip and increase, and compact conformation, external diameter be little, lightweight, roundness high to make product have.Oxygen barrier layer 6 is extruded in the outside of packed layer 5.Extrude oxygen barrier layer, not only increase fire resistance, and combine together with packed layer, insulating barrier, improve the tensile strength properties of cable.
Wherein, sub-shield 3 and total screen layer 7 are respectively aluminium-plastic tape sub-shield and tinned copper wire braided overall-shielding layer.Use aluminium-plastic tape separated-shielding and the total shielding construction of proof copper-wire braided, improve product interference free performance.
Wherein, external sheath layer 8 is irradiation crosslinking halogen-free low-smoke flame-proof polyolefin external sheath layer.External sheath layer uses irradiation crosslinking halogen-free low-smoke flame-proof polyolefin external sheath layer, uses step temperature to extrude technique, improves cable cracking resistance mechanical performance and meet low cigarette, Halogen, fire-retardant requirement.
Preferably, it is provided with glass layer between total screen layer 7 and external sheath layer 8.Glassfiber insulation is good, thermostability is strong, corrosion resistance is good, and mechanical strength is high, but shortcoming is that property is crisp, and wearability is poor, is disposed between outer jacket and sheath giving full play to its advantage, plays good protective action.
Generation Ⅲ nuclear power station of the present utility model instrument cable mounting and installation is convenient, can tolerate and be pulled design basis event by generation Ⅲ nuclear power or harsh and unforgiving environments that super design reference event causes, and possess high-low temperature resistant, heat-proof aging, resistance to irradiation, oil resistant, acid and alkali-resistance, waterproof characteristic.
Generation Ⅲ nuclear power station of the present utility model instrument cable, has oil resistant, the chemical part throttle characteristics of acid and alkali-resistance and low-smoke non-halogen flame-retardant, radiation hardness, anti-cracking performance；The construction of cable is soft, and bending radius is not less than 6 times of the outside diameter of cable；Cable stable performance under high temperature or low temperature environment, environmental resistance, resistance to LOCA function admirable.
Claims (7)
1. a generation Ⅲ nuclear power station instrument cable, it is characterized in that: include at least two bursts of unit cores (4), described unit core (4) be orderly arranged outside each packed layer (5), oxygen barrier layer (6), total screen layer (7) and external sheath layer (8), described unit core (4) includes two strands of mutual stranded heart yearns (1), lapping layer (2) and sub-shield (3), described heart yearn (1) be orderly arranged outside each described lapping layer (2) and sub-shield (3), described heart yearn (1) includes conductor (11), coating (12), inner insulating layer (13) and external insulation layer (14), described conductor (11) be orderly arranged outside each described coating (12), inner insulating layer (13) and external insulation layer (14).
2. generation Ⅲ nuclear power station as claimed in claim 1 instrument cable, it is characterized in that: described inner insulating layer (13) and external insulation layer (14) are respectively crosslinked polyethylene inner insulating layer and fire-retardant cross-linking radiation polyolefin external insulation layer, described inner insulating layer (13) and external insulation layer (14) the double-layer coextrusion outside in described coating (12).
3. generation Ⅲ nuclear power station as claimed in claim 1 instrument cable, it is characterised in that: described packed layer (5) is squeezed between described unit core (4).
4. generation Ⅲ nuclear power station as claimed in claim 1 instrument cable, it is characterised in that: described oxygen barrier layer (6) is extruded in the outside of described packed layer (5).
5. generation Ⅲ nuclear power station as claimed in claim 1 instrument cable, it is characterised in that: described sub-shield (3) and total screen layer (7) are respectively aluminium-plastic tape sub-shield and tinned copper wire braided overall-shielding layer.
6. generation Ⅲ nuclear power station as claimed in claim 1 instrument cable, it is characterised in that: described external sheath layer (8) is irradiation crosslinking halogen-free low-smoke flame-proof polyolefin external sheath layer.
7. generation Ⅲ nuclear power station as claimed in claim 1 instrument cable, it is characterised in that: it is provided with glass layer between described total screen layer (7) and external sheath layer (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620253641.2U CN205645390U (en) | 2016-03-30 | 2016-03-30 | Third generation is instrument cable for nuclear power station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620253641.2U CN205645390U (en) | 2016-03-30 | 2016-03-30 | Third generation is instrument cable for nuclear power station |
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| CN205645390U true CN205645390U (en) | 2016-10-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106920580A (en) * | 2017-05-04 | 2017-07-04 | 湖北宇洪光电实业有限公司 | A kind of data cable of communication equipment for being applied to 4G frequency ranges and preparation method thereof |
| CN107134303A (en) * | 2017-06-22 | 2017-09-05 | 安徽电缆股份有限公司 | Instrument cable for nuclear power station |
| CN113241222A (en) * | 2021-04-09 | 2021-08-10 | 扬州曙光电缆股份有限公司 | 1E-grade cable for harsh environment of third-generation and above nuclear power station |
-
2016
- 2016-03-30 CN CN201620253641.2U patent/CN205645390U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106920580A (en) * | 2017-05-04 | 2017-07-04 | 湖北宇洪光电实业有限公司 | A kind of data cable of communication equipment for being applied to 4G frequency ranges and preparation method thereof |
| CN107134303A (en) * | 2017-06-22 | 2017-09-05 | 安徽电缆股份有限公司 | Instrument cable for nuclear power station |
| CN113241222A (en) * | 2021-04-09 | 2021-08-10 | 扬州曙光电缆股份有限公司 | 1E-grade cable for harsh environment of third-generation and above nuclear power station |
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