CN113903515B - Nuclear-grade cable wrapping shell resistant to ultraviolet irradiation - Google Patents
Nuclear-grade cable wrapping shell resistant to ultraviolet irradiation Download PDFInfo
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- CN113903515B CN113903515B CN202110982341.3A CN202110982341A CN113903515B CN 113903515 B CN113903515 B CN 113903515B CN 202110982341 A CN202110982341 A CN 202110982341A CN 113903515 B CN113903515 B CN 113903515B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/285—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable
- H01B7/288—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable using hygroscopic material or material swelling in the presence of liquid
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
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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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Abstract
The application relates to the technical field of nuclear-grade cables, in particular to a nuclear-grade cable wrapping shell resistant to ultraviolet irradiation, which comprises a cable body, wherein a protecting shell which plays a role in protecting the cable body is sleeved outside the cable body; the protective shell comprises a wear-resistant layer positioned on the outermost layer; the wear-resistant layer plays a role in protecting the outer surface of the protective shell in the cable laying process, so that the wear resistance of the protective shell is improved, and the wear in the laying process is reduced; and the anti-ultraviolet layer is positioned at the inner side of the wear-resistant layer, can isolate external ultraviolet rays, improves the anti-ultraviolet performance of the cable, reduces the aging rate of the cable sheath and prolongs the service life. The application achieves the purposes of improving the protection effect on the nuclear-grade cable and prolonging the service life, and can play an omnibearing protection role on the nuclear-grade cable in the laying and using processes, thereby avoiding the phenomena of abrasion and aging of the cable.
Description
Technical Field
The application relates to the technical field of nuclear-grade cables, in particular to a nuclear-grade cable wrapping shell resistant to ultraviolet irradiation.
Background
The nuclear-grade cable is mainly used in places such as nuclear power plants, so that strict standard requirements are provided for the quality of the cable, at present, in the laying process of the nuclear-grade cable, the relative friction phenomenon between the surface of the cable and a carrier can occur, so that the outer sheath of the cable is damaged under the action of friction force, the cable is damaged easily for a long time due to the fact that the cable lacks corresponding protection measures at the parts with serious abrasion, the standard requirements are difficult to meet for the protection of ultraviolet irradiation, the aging phenomenon of the cable is aggravated, and the service life of the cable is greatly shortened.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the application provides the ultraviolet irradiation resistant core-level cable wrapping shell, which achieves the purposes of improving the protection effect on the core-level cable and prolonging the service life, can play an omnibearing protection effect on the core-level cable in the laying and using processes, and avoids the phenomena of abrasion and aging of the cable.
(II) technical scheme
In order to solve the technical problems, the application provides the following technical scheme: the nuclear-grade cable wrapping shell resistant to ultraviolet irradiation comprises a cable body, wherein a protecting shell which plays a role in protecting the cable body is sleeved outside the cable body;
the protective shell comprises a wear-resistant layer positioned on the outermost layer;
the wear-resistant layer plays a role in protecting the outer surface of the protective shell in the cable laying process, so that the wear resistance of the protective shell is improved, and the wear in the laying process is reduced;
the anti-ultraviolet layer is positioned on the inner side of the wear-resistant layer, can isolate external ultraviolet rays, improves the anti-ultraviolet performance of the cable, reduces the aging rate of the cable sheath, and prolongs the service life;
the outer sheath is made of flame-retardant polyethylene material and can be flame-retardant in a high-temperature environment;
the reinforcing layer plays a role in improving the physical properties of the protective shell, can enable the protective shell to have stronger extensibility and bending performance, and can be bent according to the laying path of the cable body;
the inner protective layer is made of polyvinyl chloride material and plays a role in flame retardance and insulation;
the reinforced layer comprises a base layer, an inner cavity is formed in the base layer, a reinforced piece is sleeved in the inner cavity, and the reinforced piece is circular, flat elliptic or isosceles trapezoid in section.
Further, the base layer is made of silane crosslinked polyolefin material, the base layer forms a double-layer morphological structure through the inner cavity, the shape of the reinforcing piece is a spiral shape of a wrapping type, and the reinforcing piece is made of steel.
Further, the wear-resistant layer consists of a transition base layer and a wear-resistant surface layer, wherein the transition base layer is nested on the outer surface of the outer sheath, the transition base layer is a pure titanium or pure chromium layer, and the average layer thickness is less than 1.5 mu m;
the wear-resistant surface layer is a titanium nitride film when being relative to a pure titanium transition base layer, is a chromium nitride film when being relative to a pure chromium transition base layer, the average layer thickness is more than 0.5 mu m, the Rz surface roughness is less than 1.2 mu m, and the Vickers hardness is HV more than 1300Kgf/mm 2 。
Further, the ultraviolet-proof layer is formed by uniformly coating an ultraviolet-proof coating on the outer surface of the outer sheath, wherein the ultraviolet-proof coating is formed by mixing ultraviolet-proof nano slurry (10-80 wt%) and a film-forming substance (20-80 wt%) together, and the film-forming substance is polyacrylic resin, organic silicon resin, inorganic silicate and aqueous dispersion or emulsion.
Further, a moisture-proof layer is arranged on the inner side wall of the inner protective layer, the moisture-proof layer comprises a water-blocking tape arranged on the inner side wall of the inner protective layer, a cylindrical oil film is sleeved in the water-blocking tape, and water-absorbing resin is filled between the water-blocking tape and the oil film.
Further, be equipped with the heat dissipation layer that provides the radiating effect to the cable body on the interior sheath, the heat dissipation layer is including inlaying the ceramic skin of establishing on the interior sheath, is equipped with the graphite flake on the outer inside wall of ceramic, is equipped with the copper foil on the inside wall of graphite flake.
Further, the inner side wall of the outer sheath is provided with a corrosion resistant layer for improving the weather resistance of the protective shell, the corrosion resistant layer comprises a vulcanized silicone rubber matrix, the outer surface of the vulcanized silicone rubber matrix is coated with a chromium-containing coating, the inner side wall of the vulcanized silicone rubber matrix is provided with a protective layer, and the protective layer is made of poly perfluoroethylene propylene.
The inner side wall of the inner protective layer is provided with a limiting part for improving the friction force between the cable body and the protective shell, and the limiting part is of a tooth-shaped bulge or dot bulge structure.
Further, the inside cover of protecting crust is equipped with the solidification spare, and the cable body alternates in the inside of solidification spare, and the material of solidification spare is aluminium or copper.
Further, the solidification piece includes the shell with the overlap joint of protecting crust inside wall, and the inside cover of shell is equipped with the inner shell, and inner shell and shell are connected and integrated into one piece setting through the connection wing, have offered a plurality of equidistance and have distributed louvres on the shell.
(III) beneficial effects
The application provides a nuclear-grade cable wrapping shell resistant to ultraviolet irradiation, which has the following beneficial effects:
1. the application achieves the purposes of improving the protection effect on the nuclear-grade cable and prolonging the service life, and can play an omnibearing protection role on the nuclear-grade cable in the laying and using processes, thereby avoiding the phenomena of abrasion and aging of the cable.
2. According to the cable, the physical performance of the protective shell can be improved through the arrangement of the reinforcing layer, the protective shell can have strong extensibility and bending performance, the protective shell can be bent according to the laying path of the cable body, the protective shell has excellent flexibility, and meanwhile, the shearing resistance of the protective shell can be improved in the pulling laying process, and the strength is improved.
3. Due to the arrangement of the moisture-proof layer, the high-performance moisture-proof function of the protective shell can be given by adopting the water-blocking tape and the water-absorbing resin, so that external moisture can be automatically subjected to moisture-proof treatment after entering the protective shell, the moisture in a humid environment is adsorbed, the influence of the humid environment on the cable is avoided, and the protection effect on the cable is improved.
4. According to the application, the heat dissipation layer is arranged, the ceramic outer layer is adopted as a base, the graphite sheet and the copper foil are matched to be in contact with the outer surface of the cable, the heat generated by the cable can be rapidly conducted to the heat dissipation layer, and the heat can be rapidly dissipated by utilizing the high heat dissipation performance of the ceramic, the graphite sheet and the copper foil, so that the heat dissipation performance of the cable is improved.
5. The application can improve the weather resistance of the protective shell by adopting the vulcanized silicone rubber substrate, so that the protective shell can protect cables inside the protective shell, si-O-Si bonds in the silicone rubber are very stable to oxygen, ozone, ultraviolet rays and the like, and the protective shell has excellent weather resistance, excellent insulating property, corona resistance and arc resistance under the condition of no addition of any additive.
6. According to the application, due to the arrangement of the curing part, the curing part is additionally arranged in the protective shell, the cable is inserted in the curing part, and the outer shell and the inner shell are integrally formed by connecting the connecting wings, so that a hollow supporting structure body can be formed in the protective shell, the mechanical strength of the protective shell is improved, the compression resistance is improved, the heat dissipation performance of the cable body is improved by matching with the heat dissipation holes on the outer shell, the heat dissipation efficiency can be further accelerated, and the heat dissipation effect of the cable is ensured.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic axial view of the present application;
FIG. 2 is a schematic cross-sectional view of a protective shell according to the present application;
FIG. 3 is a schematic cross-sectional view of a reinforcement layer of the present application;
FIG. 4 is a schematic structural diagram of a second embodiment of the present application;
FIG. 5 is a schematic diagram of a third embodiment of the present application;
FIG. 6 is a schematic diagram of a fourth embodiment of the present application;
FIG. 7 is a schematic diagram of a fifth embodiment of the present application;
FIG. 8 is a schematic diagram of a sixth embodiment of the present application;
FIG. 9 is a schematic diagram of a seventh embodiment of the present application;
FIG. 10 is a schematic diagram of an eighth embodiment of the present application;
fig. 11 is a schematic structural diagram of an eighth embodiment of the present application.
In the figure: 1. a protective shell; 11. a wear-resistant layer; 12. an ultraviolet-resistant layer; 13. an outer sheath; 14. a reinforcing layer; 141. a base layer; 142. an inner cavity; 143. a reinforcing member; 15. an inner protective layer; 16. a moisture barrier; 161. a water blocking tape; 162. a water-absorbent resin; 163. an oil film; 17. a heat dissipation layer; 171. a ceramic outer layer; 172. a graphite sheet; 173. copper foil; 18. a corrosion resistant layer; 181. a chromium-containing coating; 182. a vulcanized silicone rubber matrix; 183. a protective layer; 19. a limit part; 2. a cable body; 3. a cured member; 31. a housing; 32. an inner case; 33. a connecting wing; 34. and the heat dissipation holes.
Detailed Description
The following detailed description of embodiments of the present application will be given with reference to the accompanying drawings and examples, by which the implementation process of how the present application can be applied to solve the technical problems and achieve the technical effects can be fully understood and implemented.
Example 1
Fig. 1-3 illustrate one embodiment of the present application: the nuclear-grade cable wrapping shell resistant to ultraviolet irradiation comprises a cable body 2, wherein a protecting shell 1 which plays a role in protecting the cable body 2 is sleeved outside the cable body;
the protective shell 1 comprises a wear-resistant layer 11 at its outermost layer;
the wear-resistant layer 11 plays a role in protecting the outer surface of the protective shell 1 in the cable laying process, so that the wear resistance of the protective shell 1 is improved, and the wear in the laying process is reduced;
an anti-ultraviolet layer 12, wherein the anti-ultraviolet layer 12 is positioned at the inner side of the wear-resistant layer 11, the anti-ultraviolet layer 12 can isolate external ultraviolet rays, the anti-ultraviolet performance of the cable is improved, the aging rate of the cable sheath is reduced, and the service life is prolonged;
the outer sheath 13 is made of flame-retardant polyethylene material, and the outer sheath 13 can be flame-retardant in a high-temperature environment;
the reinforcing layer 14, the reinforcing layer 14 plays a role in improving the physical properties of the protective shell 1, the reinforcing layer 14 can enable the protective shell 1 to have stronger extensibility and bending performance, and bending can be performed according to the laying path of the cable body 2;
the inner protective layer 15 is made of polyvinyl chloride material, and plays a role in flame retardance and insulation;
the strengthening layer 14 includes the basic unit 141, the inner chamber 142 has been seted up on the basic unit 141, the inside cover of inner chamber 142 is equipped with the reinforcement piece 143, the basic unit 141 is made by silane crosslinked polyolefin material, the basic unit 141 forms bilayer morphological structure through the inner chamber 142, the shape of reinforcement piece 143 is the spiral of lapping, the material of reinforcement piece 143 is steel, the physical properties of protecting crust 1 can be improved through the setting of strengthening layer 14, can make protecting crust 1 have stronger extensibility and flexible performance, can buckle according to the laying route of cable body, make protecting crust 1 possess excellent pliability, simultaneously can improve self shear resistance in the in-process of tractive laying, improve intensity.
The cross-sectional shape of the reinforcement 143 is isosceles trapezoid, the cross-section of the isosceles trapezoid is improved in compressive strength, bending strength and recovery performance, and meanwhile, the reinforcement 143 can be suitable for the use requirements of cables with various specifications, and has strong extensibility, bending performance and excellent flexibility.
The wear-resistant layer 11 consists of a transition base layer and a wear-resistant surface layer, wherein the transition base layer is nested on the outer surface of the outer sheath 13, the transition base layer is a pure titanium or pure chromium layer, and the average layer thickness is less than 1.5 mu m;
the wear-resistant surface layer is a titanium nitride film when being relative to a pure titanium transition base layer, is a chromium nitride film when being relative to a pure chromium transition base layer, the average layer thickness is more than 0.5 mu m, the Rz surface roughness is less than 1.2 mu m, and the Vickers hardness is HV more than 1300Kgf/mm 2 。
The ultraviolet-proof layer 12 is an ultraviolet-proof coating uniformly coated on the outer surface of the outer sheath 13, wherein the ultraviolet-proof coating is formed by mixing ultraviolet-proof nano slurry (10-80 wt%) and a film-forming substance (20-80 wt%) together, and the film-forming substance is polyacrylic resin, organic silicon resin, inorganic silicate and aqueous dispersion or emulsion.
According to the embodiment, the protection shell 1 is sleeved outside the nuclear-grade cable to play a role in protecting, the nuclear-grade cable can be protected in an omnibearing manner in the process of cable laying, the service life of the nuclear-grade cable is prolonged, the wear resistance of the protection shell 1 is improved through the wear-resisting layer 11, the wear in the laying and dragging process is reduced, the ultraviolet radiation of the external environment can be blocked by the ultraviolet-resisting layer 12, the aging rate of the cable is reduced, the purposes of improving the protection effect on the nuclear-grade cable and prolonging the service life are achieved, the omnibearing protection effect on the nuclear-grade cable in the laying and using processes is achieved, and the phenomena of wear and aging of the cable are avoided.
Example two
Fig. 4 is an embodiment of the present application: the reinforced layer 14 comprises a base layer 141, an inner cavity 142 is formed in the base layer 141, a reinforced piece 143 is sleeved in the inner cavity 142, the base layer 141 is made of silane crosslinked polyolefin materials, the base layer 141 forms a double-layer morphological structure through the inner cavity 142, the reinforced piece 143 is in a spiral shape of a wrapping type, the reinforced piece 143 is made of steel, and the cross section of the reinforced piece 143 is circular.
In this embodiment, the cross-sectional shape of the reinforcing member 143 is circular, so that the stability of the reinforcing member 143 in the inner cavity 142 can be improved, and the round shape of the reinforcing member can avoid damaging the base layer 141 and ensure the basic performance of the reinforcing layer 14.
Example III
Fig. 5 is an embodiment of the present application: the reinforced layer 14 comprises a base layer 141, an inner cavity 142 is formed in the base layer 141, a reinforced piece 143 is sleeved in the inner cavity 142, the base layer 141 is made of silane crosslinked polyolefin material, the base layer 141 forms a double-layer morphological structure through the inner cavity 142, the reinforced piece 143 is in a spiral shape of a wrapping type, the reinforced piece 143 is made of steel, and the cross section of the reinforced piece 143 is in a flat elliptic shape.
In this embodiment, the cross-sectional shape of the reinforcing member 143 is set to be a flat oval shape, so that the deformation strength of the reinforcing member 143 can be improved, various physical properties of the reinforcing member 143 are improved, the reinforcing member has excellent properties compared with a round cross-section reinforcing member, and the shearing resistance of the reinforcing member can be improved and the strength can be improved in the pulling and laying process.
Example IV
Fig. 6 is an embodiment of the present application: the inner side wall of the inner protective layer 15 is provided with a moisture-proof layer 16, the moisture-proof layer 16 comprises a water-blocking tape 161 positioned on the inner side wall of the inner protective layer 15, a cylindrical oil film 163 is sleeved inside the water-blocking tape 161, and a water-absorbing resin 162 is filled between the water-blocking tape 161 and the oil film 163.
The cooperation of this embodiment through adopting water blocking strip 161 and water absorbent resin 162 is used, can give the dampproofing function of protecting crust 1 high performance, makes external moisture carry out dampproofing processing by oneself after getting into protecting crust 1, adsorbs the steam of humid environment, avoids humid environment to cause the influence to the cable to improve the guard action to the cable.
Example five
Fig. 7 is an embodiment of the present application: the inner protective layer 15 is provided with a heat dissipation layer 17 for providing a heat dissipation effect for the cable body 2, the heat dissipation layer 17 comprises a ceramic outer layer 171 embedded on the inner protective layer 15, the inner side wall of the ceramic outer layer 171 is provided with a graphite sheet 172, and the inner side wall of the graphite sheet 172 is provided with a copper foil 173.
According to the embodiment, the ceramic outer layer 171 is adopted as a base, the graphite sheet 172 and the copper foil 173 are matched to be in contact with the outer surface of the cable, heat generated by the cable can be quickly conducted onto the heat dissipation layer 17, and the heat can be quickly dissipated by utilizing the high heat dissipation performance of the ceramic, the graphite sheet and the copper foil, so that the heat dissipation performance of the cable is improved.
Example six
Fig. 8 is an embodiment of the present application: the inner side wall of the outer sheath 13 is provided with a corrosion resistant layer 18 for improving the weather resistance of the protective shell 1, the corrosion resistant layer 18 comprises a vulcanized silicone rubber matrix 182, the outer surface of the vulcanized silicone rubber matrix 182 is coated with a chromium-containing coating 181, the inner side wall of the vulcanized silicone rubber matrix 182 is provided with a protective layer 183, and the protective layer 183 is made of poly perfluoroethylene propylene.
The weather resistance of the protective shell 1 can be improved by adopting the vulcanized silicone rubber substrate 182, so that the protective shell 1 can provide protection for cables in the protective shell, si-O-Si bonds in the silicone rubber are very stable to oxygen, ozone, ultraviolet rays and the like, and the protective shell has excellent weather resistance, excellent insulating property, corona resistance and arc resistance under the condition of no addition of any additive.
Example seven
Fig. 9 is an embodiment of the present application: the inside wall of the inner protective layer 15 is provided with a limiting part 19 for improving the friction force between the cable body 2 and the protective shell 1, and the limiting part 19 is of a tooth-shaped bulge or dot bulge structure.
In this embodiment, the friction between the protective shell 1 and the cable body 2 can be increased by adding the limiting portion 19, so that the protective shell 1 can be guaranteed to be in a consistent state with the cable body 2 in the laying process, and the occurrence of the phenomenon that the two are separated relatively is avoided.
Example eight
Fig. 10-11 illustrate one embodiment of the present application: the inside cover of protecting crust 1 is equipped with solidification spare 3, and cable body 2 alternates in solidification spare 3 inside, and solidification spare 3 material is aluminium or copper, solidification spare 3 include with the outer shell 31 of protecting crust 1 inside wall overlap joint, the inside cover of outer shell 31 is equipped with inner shell 32, and inner shell 32 and outer shell 31 are connected and integrated into one piece setting through connecting wing 33, have seted up a plurality of equidistance distribution's louvres 34 on the outer shell 31.
According to the embodiment, the curing part 3 is additionally arranged in the protective shell 1, the cable is inserted in the curing part 3, the outer shell 31 and the inner shell 32 are integrally formed by connecting the connecting wings 33, a hollow supporting structure body can be formed in the protective shell 1, the mechanical strength of the protective shell 1 is improved, the compression resistance is improved, the heat dissipation performance of the cable body 2 is improved by being matched with the heat dissipation holes 34 in the outer shell 31, the heat dissipation efficiency can be further accelerated, and the heat dissipation effect of the cable is ensured.
The application achieves the purposes of improving the protection effect on the nuclear-grade cable and prolonging the service life, and can play an omnibearing protection role on the nuclear-grade cable in the laying and using processes, thereby avoiding the phenomena of abrasion and aging of the cable.
According to the cable, the physical performance of the protective shell can be improved through the arrangement of the reinforcing layer, the protective shell can have strong extensibility and bending performance, the protective shell can be bent according to the laying path of the cable body, the protective shell has excellent flexibility, and meanwhile, the shearing resistance of the protective shell can be improved in the pulling laying process, and the strength is improved.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a nuclear level cable of resistant ultraviolet irradiation wraps up shell, includes cable body (2), its characterized in that: the cable is characterized in that a protective shell (1) which plays a role in protecting the cable body (2) is sleeved outside the cable body;
the protective shell (1) comprises a wear-resistant layer (11) positioned on the outermost layer;
the wear-resistant layer (11) plays a role in protecting the outer surface of the protective shell (1) in the cable laying process, so that the wear resistance of the protective shell (1) is improved, and the wear in the laying process is reduced;
the anti-ultraviolet layer (12), the said anti-ultraviolet layer (12) locates at inboard of the wear-resisting layer (11), the anti-ultraviolet layer (12) can isolate the external ultraviolet light, improve the anti-ultraviolet performance to the cable, reduce the ageing rate of the cable sheath, lengthen life;
the outer sheath (13) is made of flame-retardant polyethylene material, and can be flame-retardant in a high-temperature environment;
the reinforcing layer (14), the said reinforcing layer (14) plays a role of improving the physical property of the protective shell (1), the reinforcing layer 14 can make the protective shell (1) have stronger extensibility and flexible performance, can buckle according to the laying route of the cable body (2);
the inner protective layer (15) is made of polyvinyl chloride material, and has flame-retardant and insulating effects;
the reinforced layer (14) comprises a base layer (141), an inner cavity (142) is formed in the base layer (141), a reinforced piece (143) is sleeved in the inner cavity (142), and the cross section of the reinforced piece (143) is circular, flat elliptic or isosceles trapezoid;
the base layer (141) is made of silane crosslinked polyolefin material, the base layer (141) forms a double-layer morphological structure through the inner cavity (142), the shape of the reinforcing piece (143) is a spiral shape of a wrapping type, and the reinforcing piece (143) is made of steel.
2. The ultraviolet radiation resistant core cable jacket according to claim 1, wherein: the wear-resistant layer (11) consists of a transition base layer and a wear-resistant surface layer, the transition base layer is nested on the outer surface of the outer sheath (13), wherein the transition base layer is a pure titanium or pure chromium layer, and the average layer thickness is less than 1.5 mu m;
the wear-resistant surface layer is a titanium nitride film when being relative to a pure titanium transition base layer, and is a nitride film when being relative to a pure chromium transition base layerThe average layer thickness of the chromium film is more than 0.5 mu m, the Rz surface roughness is less than 1.2 mu m, and the Vickers hardness is HV more than 1300Kgf/mm 2 。
3. The ultraviolet radiation resistant core cable jacket according to claim 1, wherein: the ultraviolet-proof layer (12) is formed by uniformly coating an ultraviolet-proof coating on the outer surface of the outer sheath (13), wherein the ultraviolet-proof coating is formed by mixing ultraviolet-proof nano slurry (10-80 wt%) and a film-forming substance (20-80 wt%) together, and the film-forming substance is polyacrylic resin, organic silicon resin, inorganic silicate and aqueous dispersion or emulsion.
4. The ultraviolet radiation resistant core cable jacket according to claim 1, wherein: the inner side wall of the inner protective layer (15) is provided with a moisture-proof layer (16), the moisture-proof layer (16) comprises a water-blocking tape (161) positioned on the inner side wall of the inner protective layer (15), a cylindrical oil film (163) is sleeved inside the water-blocking tape (161), and water-absorbing resin (162) is filled between the water-blocking tape (161) and the oil film (163).
5. The ultraviolet radiation resistant core cable jacket according to claim 1, wherein: be equipped with on interior sheath (15) and provide heat dissipation layer (17) of radiating effect to cable body (2), heat dissipation layer (17) are including inlaying ceramic skin (171) of establishing on interior sheath (15), are equipped with graphite flake (172) on the inside wall of ceramic skin (171), are equipped with copper foil (173) on the inside wall of graphite flake (172).
6. The ultraviolet radiation resistant core cable jacket according to claim 1, wherein: the inner side wall of the outer sheath (13) is provided with a corrosion resistant layer (18) for improving the weather resistance of the protective shell (1), the corrosion resistant layer (18) comprises a vulcanized silicone rubber matrix (182), the outer surface of the vulcanized silicone rubber matrix (182) is coated with a chromium-containing element coating (181), the inner side wall of the vulcanized silicone rubber matrix (182) is provided with a protective layer (183), and the protective layer (183) is made of poly perfluoroethylene propylene.
7. The ultraviolet radiation resistant core cable jacket according to claim 1, wherein: the inner side wall of the inner protective layer (15) is provided with a limiting part (19) for improving the friction force between the cable body (2) and the protective shell (1), and the limiting part (19) is of a tooth-shaped bulge or dot bulge structure.
8. The ultraviolet radiation resistant core cable jacket according to claim 1, wherein: the inside cover of protecting crust (1) is equipped with solidification spare (3), and cable body (2) alternate in solidification spare (3) inside, and solidification spare (3) material is aluminium or copper.
9. The ultraviolet radiation resistant core cable jacket according to claim 8, wherein: the solidification piece (3) comprises an outer shell (31) which is lapped with the inner side wall of the protective shell (1), an inner shell (32) is sleeved in the outer shell (31), the inner shell (32) and the outer shell (31) are connected through connecting wings (33) and are integrally formed, and a plurality of heat dissipation holes (34) which are distributed at equal intervals are formed in the outer shell (31).
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| CN202110982341.3A CN113903515B (en) | 2021-08-25 | 2021-08-25 | Nuclear-grade cable wrapping shell resistant to ultraviolet irradiation |
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| CN202110982341.3A CN113903515B (en) | 2021-08-25 | 2021-08-25 | Nuclear-grade cable wrapping shell resistant to ultraviolet irradiation |
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| CN113903515B true CN113903515B (en) | 2023-09-19 |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101092959A (en) * | 2007-07-13 | 2007-12-26 | 东北大学 | Parts of refrigeration compressor with antiwear coating, and method for manufacturing antiwear coating layer |
| CN101899249A (en) * | 2009-05-25 | 2010-12-01 | 上海复甲新型材料科技有限公司 | Transparent thermal insulation anti-ultraviolet coating and preparation method thereof |
| JP2015171176A (en) * | 2014-03-05 | 2015-09-28 | 日立Ｇｅニュークリア・エナジー株式会社 | Fire resistant structure of cable in nuclear power plant |
| CN208298600U (en) * | 2018-06-29 | 2018-12-28 | 沈阳天荣电缆材料有限公司 | Cable anticorrosion semi-conductive buffer water-blocking band |
| CN209912597U (en) * | 2019-06-06 | 2020-01-07 | 江苏上上电缆集团有限公司 | Ultraviolet irradiation resistant nuclear-grade lighting cable |
| CN209929933U (en) * | 2019-07-08 | 2020-01-10 | 国网江苏省电力有限公司金湖县供电分公司 | NPP cable protection pipe |
| CN210053181U (en) * | 2019-06-19 | 2020-02-11 | 河南金诚晟电力通讯有限公司 | Reinforced cable protection sleeve |
| CN210325277U (en) * | 2019-08-29 | 2020-04-14 | 无锡市天成线缆有限公司 | Offshore power cable |
| CN211045124U (en) * | 2019-11-26 | 2020-07-17 | 金湖博通科技有限公司 | Halogen-free power cable |
| CN213959632U (en) * | 2020-12-24 | 2021-08-13 | 保定盛迈迪管道制造有限公司 | MPP electric power pipe that heat dissipation is good |
| CN213988396U (en) * | 2021-01-18 | 2021-08-17 | 中山市合佳电业制品有限公司 | Electric wire with low electric energy consumption |
-
2021
- 2021-08-25 CN CN202110982341.3A patent/CN113903515B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101092959A (en) * | 2007-07-13 | 2007-12-26 | 东北大学 | Parts of refrigeration compressor with antiwear coating, and method for manufacturing antiwear coating layer |
| CN101899249A (en) * | 2009-05-25 | 2010-12-01 | 上海复甲新型材料科技有限公司 | Transparent thermal insulation anti-ultraviolet coating and preparation method thereof |
| JP2015171176A (en) * | 2014-03-05 | 2015-09-28 | 日立Ｇｅニュークリア・エナジー株式会社 | Fire resistant structure of cable in nuclear power plant |
| CN208298600U (en) * | 2018-06-29 | 2018-12-28 | 沈阳天荣电缆材料有限公司 | Cable anticorrosion semi-conductive buffer water-blocking band |
| CN209912597U (en) * | 2019-06-06 | 2020-01-07 | 江苏上上电缆集团有限公司 | Ultraviolet irradiation resistant nuclear-grade lighting cable |
| CN210053181U (en) * | 2019-06-19 | 2020-02-11 | 河南金诚晟电力通讯有限公司 | Reinforced cable protection sleeve |
| CN209929933U (en) * | 2019-07-08 | 2020-01-10 | 国网江苏省电力有限公司金湖县供电分公司 | NPP cable protection pipe |
| CN210325277U (en) * | 2019-08-29 | 2020-04-14 | 无锡市天成线缆有限公司 | Offshore power cable |
| CN211045124U (en) * | 2019-11-26 | 2020-07-17 | 金湖博通科技有限公司 | Halogen-free power cable |
| CN213959632U (en) * | 2020-12-24 | 2021-08-13 | 保定盛迈迪管道制造有限公司 | MPP electric power pipe that heat dissipation is good |
| CN213988396U (en) * | 2021-01-18 | 2021-08-17 | 中山市合佳电业制品有限公司 | Electric wire with low electric energy consumption |
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|---|---|
| CN113903515A (en) | 2022-01-07 |
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