CN210039736U - Fireproof cable for nuclear power station - Google Patents
Fireproof cable for nuclear power station Download PDFInfo
- Publication number
- CN210039736U CN210039736U CN201921304416.7U CN201921304416U CN210039736U CN 210039736 U CN210039736 U CN 210039736U CN 201921304416 U CN201921304416 U CN 201921304416U CN 210039736 U CN210039736 U CN 210039736U
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- CN
- China
- Prior art keywords
- layer
- cable
- nuclear power
- cable core
- conductor
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- 239000004020 conductor Substances 0.000 claims abstract description 28
- 239000011248 coating agent Substances 0.000 claims abstract description 14
- 238000000576 coating method Methods 0.000 claims abstract description 14
- 239000003063 flame retardant Substances 0.000 claims abstract description 10
- 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 9
- 230000002265 prevention Effects 0.000 claims abstract description 9
- 229920002379 silicone rubber Polymers 0.000 claims description 14
- 239000000919 ceramic Substances 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 11
- RJDOZRNNYVAULJ-UHFFFAOYSA-L [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] RJDOZRNNYVAULJ-UHFFFAOYSA-L 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 238000009954 braiding Methods 0.000 claims description 3
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 3
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 3
- 239000000347 magnesium hydroxide Substances 0.000 claims description 3
- 230000009970 fire resistant effect Effects 0.000 claims 5
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 48
- 230000032683 aging Effects 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000010292 electrical insulation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000011241 protective layer Substances 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 231100000956 nontoxicity Toxicity 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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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
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Insulated Conductors (AREA)
Abstract
The utility model discloses a nuclear power station cable of fire prevention belongs to the cable field, including protection skin and cable core, cable core is located the inside of protection skin, and cable core is provided with four, is provided with the flame retardant coating in the protection skin, is provided with the insulating layer in the flame retardant coating, is provided with the shielding layer in the insulating layer, is provided with filling layer one between shielding layer and the cable core, and cable core includes many conductors and protection inlayer, and many conductors are located the inside of protection inlayer, and the outside of conductor all overlaps and is equipped with the conductor cover, and the cross-sectional view of conductor cover is regular hexagon structure, is provided with filling layer two between protection inlayer and the conductor cover; the utility model relates to a novelty, great improvement the various performances of cable, the fire prevention fire resistance can be good, has prolonged the life of cable, is applied to the nuclear power station, has ensured nuclear power station safety and stability's operation.
Description
Technical Field
The utility model belongs to the technical field of the cable, concretely relates to nuclear power station cable of fire prevention.
Background
The electrical equipment cable for the nuclear power station is mainly distributed in a nuclear island and a conventional island and used for power transmission and control, instrument connection and the like. The types of cables required by the nuclear power station are basically the same as those of the thermal power station, but the cables of the nuclear power station have strict requirements on the technical performance of halogen free, low smoke, low toxicity and the like, so that at present, China can only produce the cables for the periphery of the nuclear island, and most of the cables for other applications depend on imports. The traditional cable for the nuclear power station is always an unsolvable problem for the fire prevention problem in the actual working environment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a nuclear power station cable of fire prevention to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a nuclear power station cable of fire prevention, is including protecting skin and cable core, cable core is located the outer inside of protection, and cable core is provided with four, is provided with the flame retardant coating in the protection skin, is provided with the insulating layer in the flame retardant coating, is provided with the shielding layer in the insulating layer, is provided with filling layer one between shielding layer and the cable core, and cable core is including many with conductor and protection inlayer, and many conductors are located the inside of protection inlayer, and the outside of conductor all overlaps and is equipped with the conductor cover, and the cross-sectional view of conductor cover is regular hexagon structure, is provided with filling layer two between protection inlayer and the conductor.
Preferably, the outer protective layer and the inner protective layer are ceramic silicon rubber wrapping tape layers made of ceramic silicon rubber wrapping tapes.
Preferably, the fireproof layer is a double-faced synthetic mica tape overlapping wrapping layer.
Preferably, the shielding layer is of a tinned copper wire braided structure, and the braiding density is not less than 90%.
Preferably, the surface of the protective outer layer is coated with an inorganic coating.
Preferably, the first filling layer and the second filling layer are magnesium hydroxide filling layers.
Compared with the prior art, the beneficial effects of the utility model are that:
this fire-proof nuclear power station cable has improved the fire prevention fire resistance characteristic, the fire-retardant characteristic of cable through setting up structures such as protection skin, flame retardant coating, insulating layer, shielding layer, protection inlayer, filling layer one, filling layer two and conductor cover, is applied to the nuclear power station, has ensured nuclear power station safety and stability's operation.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a front view of the present invention.
In the figure: 1. an outer protective layer; 2. a fire barrier layer; 3. a thermal insulation layer; 4. a shielding layer; 5. a protective inner layer; 6. filling a first layer; 7. a second filling layer; 8. a conductor sleeve; 9. a conductor.
Detailed Description
The present invention will be further described with reference to the following examples.
The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. The condition in the embodiment can be further adjusted according to concrete condition the utility model discloses a it is right under the design prerequisite the utility model discloses a simple improvement of method all belongs to the utility model discloses the scope of claiming.
Please refer to fig. 1-2, the utility model provides a nuclear power station cable of fire prevention, including protection outer 1 and cable core, cable core is located protection outer 1's inside, cable core is provided with four, be provided with flame retardant coating 2 in the protection outer 1, be provided with insulating layer 3 in the flame retardant coating 2, be provided with shielding layer 4 in the insulating layer 3, be provided with filling layer 6 between shielding layer 4 and the cable core, cable core includes many with conductor 9 and protection inlayer 5, many conductors 9 are located protection inlayer 5's inside, and conductor 9's outside all overlaps and is equipped with conductor cover 8, conductor cover 8's cross-sectional view is regular hexagon structure, be provided with filling layer two 7 between protection inlayer 5 and the conductor cover 8.
Specifically, the protective outer layer 1 and the protective inner layer 5 are ceramic silicon rubber wrapping tape layers made of ceramic silicon rubber wrapping tapes; the ceramic silicon rubber material has the basic characteristic of good elasticity of silicon rubber at normal temperature, has the advantages of no toxicity, no odor, high and low temperature resistance, ozone aging resistance, weather aging resistance, excellent electrical insulation performance and good processing performance of common high-temperature silicon rubber, and can keep the state of a flexible cable at about minus 40 ℃ to minus 200 ℃.
Specifically, the fireproof layer 2 is a double-sided synthetic mica tape overlapping wrapping layer; the material has excellent electrical insulation performance, excellent fireproof performance, high and low temperature resistance and good corrosion resistance and chemical performance.
Specifically, the shielding layer 4 is a tinned copper wire braided structure, and the braiding density is not less than 90%; the shielding layer 4 ensures the anti-interference performance of the product.
Specifically, an inorganic coating is coated on the surface of the protective outer layer 1; the inorganic coating improves the temperature resistance, wear resistance, oxidation resistance, corrosion resistance and other properties of the protective outer layer 1, thereby prolonging the service life.
Specifically, the first filling layer 6 and the second filling layer 7 are magnesium hydroxide filling layers.
The utility model discloses a theory of operation and use flow: the protective outer layer 1 is a ceramic silicon rubber wrapping tape layer made of a ceramic silicon rubber wrapping tape, and the ceramic silicon rubber material has the basic characteristic of good elasticity of silicon rubber at normal temperature, has the advantages of no toxicity, no odor, high and low temperature resistance, ozone aging resistance, weather aging resistance and excellent electrical insulation performance, also has good processing performance of common high-temperature silicon rubber, and can keep the state of a flexible cable at about minus 40 ℃ to minus 200 ℃. When the flame is invaded and the temperature reaches more than 300 ℃, the original soft state can be converted into a hard sponge ceramic body, and the fireproof layer 2 is a double-sided synthetic mica tape overlapping wrapping layer; the material has excellent electrical insulation performance, excellent fireproof performance, high and low temperature resistance and good corrosion resistance chemical performance, the shielding layer 4 ensures the anti-interference performance of the product, and the properties of temperature resistance, wear resistance, oxidation resistance, corrosion resistance and the like of the protective outer layer 1 are improved through the inorganic coating, so that the service life is prolonged, the stability is improved through the conductor sleeve 8 in a regular hexagon, the compression resistance of the cable is improved, and the service life is prolonged.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a nuclear power station cable of fire prevention, is including protecting skin (1) and cable core, its characterized in that: the cable core is located the inside of protection outer layer (1), the cable core is provided with four, be provided with flame retardant coating (2) in protection outer layer (1), be provided with insulating layer (3) in flame retardant coating (2), be provided with shielding layer (4) in insulating layer (3), be provided with between shielding layer (4) and the cable core filling layer (6), the cable core is including many with conductor (9) and protection inner layer (5), many conductor (9) are located the inside of protection inner layer (5), and the outside of conductor (9) all overlaps and is equipped with conductor cover (8), the cross-sectional view of conductor cover (8) is regular hexagon structure, be provided with filling layer two (7) between protection inner layer (5) and conductor cover (8).
2. A fire-resistant nuclear power plant cable as claimed in claim 1, wherein: the protective outer layer (1) and the protective inner layer (5) are ceramic silicon rubber wrapping tape layers made of ceramic silicon rubber wrapping tapes.
3. A fire-resistant nuclear power plant cable as claimed in claim 1, wherein: the fireproof layer (2) is a double-sided synthetic mica tape overlapping wrapping layer.
4. A fire-resistant nuclear power plant cable as claimed in claim 1, wherein: the shielding layer (4) is of a tinned copper wire braided structure, and the braiding density is not less than 90%.
5. A fire-resistant nuclear power plant cable as claimed in claim 1, wherein: and an inorganic coating is coated on the surface of the protective outer layer (1).
6. A fire-resistant nuclear power plant cable as claimed in claim 1, wherein: the first filling layer (6) and the second filling layer (7) are magnesium hydroxide filling layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921304416.7U CN210039736U (en) | 2019-08-12 | 2019-08-12 | Fireproof cable for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921304416.7U CN210039736U (en) | 2019-08-12 | 2019-08-12 | Fireproof cable for nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210039736U true CN210039736U (en) | 2020-02-07 |
Family
ID=69351171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921304416.7U Active CN210039736U (en) | 2019-08-12 | 2019-08-12 | Fireproof cable for nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210039736U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584126A (en) * | 2020-05-21 | 2020-08-25 | 哈尔滨交联电力电缆制造有限公司 | Crosslinked polyethylene insulated polyvinyl chloride sheath power cable |
-
2019
- 2019-08-12 CN CN201921304416.7U patent/CN210039736U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584126A (en) * | 2020-05-21 | 2020-08-25 | 哈尔滨交联电力电缆制造有限公司 | Crosslinked polyethylene insulated polyvinyl chloride sheath power cable |
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