CN214753107U - 80-year-life cable for nuclear power station - Google Patents
80-year-life cable for nuclear power station Download PDFInfo
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- CN214753107U CN214753107U CN202121008785.9U CN202121008785U CN214753107U CN 214753107 U CN214753107 U CN 214753107U CN 202121008785 U CN202121008785 U CN 202121008785U CN 214753107 U CN214753107 U CN 214753107U
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- nuclear power
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- 239000003063 flame retardant Substances 0.000 claims abstract description 28
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000004020 conductor Substances 0.000 claims abstract description 19
- 238000009413 insulation Methods 0.000 claims abstract description 13
- 239000010410 layer Substances 0.000 claims description 82
- 239000012792 core layer Substances 0.000 claims description 23
- 229920000098 polyolefin Polymers 0.000 claims description 11
- 238000004132 cross linking Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 239000012774 insulation material Substances 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 claims description 2
- 230000005855 radiation Effects 0.000 claims 3
- 239000000945 filler Substances 0.000 claims 2
- 238000012856 packing Methods 0.000 abstract description 4
- 208000002925 dental caries Diseases 0.000 abstract 1
- 238000005246 galvanizing Methods 0.000 abstract 1
- 238000013461 design Methods 0.000 description 6
- 239000011810 insulating material Substances 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of cables, and a nuclear power station 80 years life cable is disclosed, including cable body and sandwich layer, the sandwich layer is fixed to be set up in the middle part of cable body, the fixed a plurality of electric conductors that are provided with in inside of sandwich layer, it is a plurality of the surface of electric conductor is the fixed galvanizing coat that is provided with all, the fixed shielding layer that is provided with in the outside of sandwich layer, the fixed double-layer insulation layer that is provided with in the outside of shielding layer, a plurality of cavitys have been seted up at the double-layer insulation layer middle part, and is a plurality of the inside of cavity is all filled and is provided with fire-retardant packing, the fixed insulating layer that is provided with in the outside of double-layer insulation layer, the fixed armor that is provided with in the outside of armor, the inside of sandwich layer is provided with stop gear. The utility model discloses the external diameter is little, light in weight, and has good insulating flame retardant property, long service life.
Description
Technical Field
The utility model relates to the technical field of cables, especially, relate to nuclear power station 80 year life cable.
Background
The nuclear power generation becomes an important approach for solving energy problems in all countries in the world, is an important part of the energy strategy in China, and the active development of nuclear power cables is one of important components for realizing the localization of nuclear power equipment.
The traditional cable for the nuclear power station mainly adopts a scheme of rubber insulation and rubber sheath, has large outer diameter, large weight, poor processing performance, high cost and poor insulating and flame-retardant performance, is unfavorable for the design of the whole nuclear power station, and is difficult to meet the long-life use requirement of the nuclear power station.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problems of large outer diameter, heavy weight, poor processing performance, high cost, poor insulating and flame-retardant performance and short service life of the cable for the nuclear power station in the prior art, and providing the cable with 80 years service life for the nuclear power station.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the cable with the service life of 80 years in the nuclear power station comprises a cable body and a core layer, wherein the core layer is fixedly arranged in the middle of the cable body, a plurality of electric conductors are fixedly arranged in the core layer, a galvanized layer is fixedly arranged on the surface of each electric conductor, a shielding layer is fixedly arranged on the outer side of the core layer, a double-layer insulating layer is fixedly arranged on the outer side of each shielding layer, a plurality of cavities are formed in the middle of the double-layer insulating layer, a flame-retardant filling layer is filled in each cavity, a heat insulation layer is fixedly arranged on the outer side of each double-layer insulating layer, an armor layer is fixedly arranged on the outer side of each heat insulation layer, an outer sheath is fixedly arranged on the outer side of each armor layer, and a limiting mechanism is arranged in each core layer.
Preferably, the limiting mechanism comprises a plurality of limiting strips, the limiting strips are fixedly arranged on the inner side wall of the core layer, and the two sides of the core layer are respectively abutted to the corresponding electric conductors.
Preferably, the surfaces of the core layer, the shielding layer, the double-layer insulating layer, the heat insulation layer, the armor layer and the outer sheath are all fixedly provided with color bands, and the end parts of the plurality of color bands are all provided with labels.
Preferably, the inner layer of the double-layer insulating layer is extruded by using a high-electrical-property irradiation crosslinking polyolefin insulating material, and the outer layer of the double-layer insulating layer is extruded by using an irradiation flame-retardant crosslinking polyolefin insulating material.
Preferably, the outer sheath is made of irradiation crosslinking halogen-free flame retardant sheath material.
Preferably, the shielding layer is formed by weaving tinned copper wires.
Preferably, the flame-retardant filling adopts a non-hygroscopic halogen-free flame-retardant material.
Preferably, the conductor is a stranded class 2 copper conductor.
Compared with the prior art, the utility model provides a nuclear power station 80 years life-span cable possesses following beneficial effect:
1. the cable with the service life of 80 years in the nuclear power station adopts a double-layer insulation design, the inner layer is extruded by adopting a high-electrical-property irradiation crosslinking polyolefin insulation material, the outer layer is extruded by adopting an irradiation flame-retardant crosslinking polyolefin insulation material, double-layer insulation requirements are simultaneously co-extruded on double-layer equipment, and the electrical property and the flame-retardant property of the cable can meet the design requirements.
2. This 80 year life-span cables of nuclear power station adopts extrusion formula crowded package structure through the cable packing, reduces the external diameter increase because of strip packing causes, improves the cable roundness degree, prevents effectively that the cable from taking place the displacement and influencing product property ability at insulating sinle silk under high temperature high pressure environment.
The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses the external diameter is little, light in weight, and has good insulating flame retardant property, long service life.
Drawings
Fig. 1 is a schematic structural diagram of a cable with a 80-year life for a nuclear power station according to the present invention;
fig. 2 is a schematic sectional end view of fig. 1.
In the figure: the cable comprises a cable body 1, a core layer 2, a shielding layer 3, a double-layer insulating layer 4, a heat insulating layer 5, an armor layer 6, an outer sheath 7, an ink ribbon 8, a number 9, a cavity 10, flame-retardant filling 11, a limiting strip 12, a conductor 13 and a zinc coating 14.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-2, a cable with a service life of 80 years for a nuclear power station comprises a cable body 1 and a core layer 2, the core layer 2 is fixedly arranged in the middle of the cable body 1, a plurality of electric conductors 13 are fixedly arranged in the core layer 2, a galvanized layer 14 is fixedly arranged on the surfaces of the electric conductors 13, a shielding layer 3 is fixedly arranged on the outer side of the core layer 2, a double-layer insulating layer 4 is fixedly arranged on the outer side of the shielding layer 3, a plurality of cavities 10 are formed in the middle of the double-layer insulating layer 4, flame-retardant filling 11 is filled in the cavities 10, a heat insulating layer 5 is fixedly arranged on the outer side of the double-layer insulating layer 4, an armor layer 6 is fixedly arranged on the outer side of the armor layer 6, and a limiting mechanism is arranged in the core layer 2.
Stop gear includes a plurality of spacing 12, and a plurality of spacing 12 are all fixed to be set up in the inside wall of sandwich layer 2, and the both sides of a plurality of sandwich layers 2 all offset the setting with the electric conductor 13 that corresponds, prevent that conductor 13 from taking place off-centre.
The surfaces of the wire core layer 2, the shielding layer 3, the double-layer insulating layer 4, the heat insulation layer 5, the armor layer 6 and the outer sheath 7 are all fixedly provided with color bands 8, and the end parts of the color bands 8 are all provided with marks 9, so that the color bands can be conveniently and quickly identified.
The inner layer of the double-layer insulating layer 4 is extruded by adopting a high-electrical-property irradiation crosslinking polyolefin insulating material, and the outer layer is extruded by adopting an irradiation flame-retardant crosslinking polyolefin insulating material, so that the electrical property and the flame retardant property of the cable can meet the design requirements.
The outer sheath 7 is made of irradiation cross-linking halogen-free flame-retardant sheath material.
The shielding layer 3 is formed by weaving tinned copper wires, and the shielding coverage rate is more than 85%.
The flame-retardant filling 11 is made of non-hygroscopic halogen-free flame-retardant material.
The conductor 13 is a stranded type 2 copper conductor.
The utility model discloses in, during the use, because nuclear power station 80 years life-span cable requires to have high electrical property and high flame retardant ability and low tension cable requires the insulated wire core to pass through single vertical burning test, adopt irradiation cross-linked polyolefin material to increase the flame retardant property and will certainly decline to the insulating properties's that leads to the fact, in order to guarantee the design requirement of cable, adopt double-deck insulation design-the inlayer adopts high electrical property irradiation cross-linked polyolefin insulating material to extrude, the skin adopts irradiation flame retardant cross-linked polyolefin insulating material to crowd the package, double-deck insulation requirement is crowded simultaneously on double-deck equipment altogether, guarantee that cable electrical property and flame retardant property satisfy the design requirement, cable filling adopts extrusion formula crowded package structure, reduce the external diameter increase that causes because of strip packing, improve cable roundness, prevent effectively that cable from insulating core under high temperature high pressure environment from taking place the displacement and influencing product performance, guarantee cable structure compactness, low tension cable requires, Small outer diameter, light weight and the like.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
1. The cable with the service life of 80 years for the nuclear power station comprises a cable body (1) and a core layer (2), and is characterized in that the core layer (2) is fixedly arranged in the middle of the cable body (1), a plurality of electric conductors (13) are fixedly arranged in the core layer (2), a zinc coating (14) is fixedly arranged on the surfaces of the electric conductors (13), a shielding layer (3) is fixedly arranged on the outer side of the core layer (2), a double-layer insulating layer (4) is fixedly arranged on the outer side of the shielding layer (3), a plurality of cavities (10) are formed in the middle of the double-layer insulating layer (4), flame-retardant fillers (11) are filled in the cavities (10), a heat insulating layer (5) is fixedly arranged on the outer side of the double-layer insulating layer (4), an armor layer (6) is fixedly arranged on the outer side of the armor layer (6), and an outer sheath (7) is fixedly arranged on the outer side of the armor layer (6), and a limiting mechanism is arranged in the wire core layer (2).
2. The cable with the service life of 80 years in the nuclear power station as claimed in claim 1, wherein the limiting mechanism comprises a plurality of limiting strips (12), the limiting strips (12) are all fixedly arranged on the inner side wall of the core layer (2), and two sides of the core layer (2) are all arranged in a manner of abutting against the corresponding conductors (13).
3. The cable with the 80-year service life in the nuclear power station as claimed in claim 1, wherein color ribbons (8) are fixedly arranged on the surfaces of the core layer (2), the shielding layer (3), the double-layer insulating layer (4), the heat insulating layer (5), the armor layer (6) and the outer sheath (7), and the end parts of the plurality of color ribbons (8) are provided with labels (9).
4. The cable for the 80-year life of the nuclear power plant as claimed in claim 1, wherein the inner layer of the double-layer insulation layer (4) is extruded by a high-electrical-property radiation cross-linked polyolefin insulation material and the outer layer is extruded by a radiation flame-retardant cross-linked polyolefin insulation material.
5. The cable with the 80-year life span in the nuclear power station as claimed in claim 1, wherein the outer sheath (7) is made of radiation cross-linking halogen-free flame-retardant sheath material.
6. The nuclear power plant 80 year life cable of claim 1, wherein the shielding layer (3) is braided with tinned copper wire.
7. The nuclear power plant 80 year life cable of claim 1 wherein the flame retardant filler (11) is a non-hygroscopic halogen free flame retardant material.
8. The nuclear power plant 80 year life cable of claim 1 wherein the electrical conductor (13) is a stranded class 2 copper conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121008785.9U CN214753107U (en) | 2021-05-12 | 2021-05-12 | 80-year-life cable for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121008785.9U CN214753107U (en) | 2021-05-12 | 2021-05-12 | 80-year-life cable for nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214753107U true CN214753107U (en) | 2021-11-16 |
Family
ID=78620992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121008785.9U Active CN214753107U (en) | 2021-05-12 | 2021-05-12 | 80-year-life cable for nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214753107U (en) |
-
2021
- 2021-05-12 CN CN202121008785.9U patent/CN214753107U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240318 Address after: 239300 No.1 ansao Avenue, Tianchang City, Chuzhou City, Anhui Province Patentee after: ANHUI CABLE Co.,Ltd. Country or region after: China Patentee after: FAR EAST CABLE Co.,Ltd. Address before: 239300 No.1 anshao Avenue, Tianchang City, Chuzhou City, Anhui Province Patentee before: ANHUI CABLE Co.,Ltd. Country or region before: China |
|
| TR01 | Transfer of patent right |