CN114709023A - Insulating flame-retardant anti-interference control cable - Google Patents
Insulating flame-retardant anti-interference control cable Download PDFInfo
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- CN114709023A CN114709023A CN202210415602.8A CN202210415602A CN114709023A CN 114709023 A CN114709023 A CN 114709023A CN 202210415602 A CN202210415602 A CN 202210415602A CN 114709023 A CN114709023 A CN 114709023A
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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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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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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
- 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
- H01B7/17—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
- H01B7/1805—Protections not provided for in groups H01B7/182 - H01B7/26
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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
- H01B7/184—Sheaths comprising grooves, ribs or other projections
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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
- H01B7/189—Radial force absorbing layers providing a cushioning effect
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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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- 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 invention discloses an insulating flame-retardant anti-interference control cable, which relates to the technical field of control cables and comprises a cable main body, wherein a built-in flame-retardant device is arranged inside the cable main body, the upper surface of the built-in flame-retardant device is fixedly connected with a cutting-proof layer, the bottom surface of the built-in flame-retardant device is fixedly connected with an insulating layer, and an elastic supporting component is arranged inside the cable main body. According to the invention, the powder extinguishing agent is extruded by the expansion pressure outside the built-in flame-retardant device, then the prickle tip penetrates into the lower bearing plate, the inert compressed gas at the bottom side of the lower bearing plate rapidly expands to push the elastic bearing plate to move upwards to extrude the bearing container to contract inwards, so that the flame-retardant particles can be sprayed out through the rupture groove to perform flame retardance, the powder extinguishing agent is responsible for the next step of fire extinguishing, the inert compressed gas reduces the oxygen content and accelerates the fire extinguishing efficiency, and the material distribution at the left side of the flame-retardant particles is just opposite to that at the right side of the flame-retardant particles, so that the combustion phenomenon generated inside the cable main body can be coped with.
Description
Technical Field
The invention relates to the technical field of control cables, in particular to an insulating flame-retardant anti-interference control cable.
Background
The control cable is a polyvinyl chloride insulation and polyvinyl chloride sheath control cable suitable for industrial and mining enterprises, energy traffic departments, control and protection circuits with alternating current rated voltage below 450/750 volts, and the like, the power cable is used for transmitting and distributing high-power electric energy in a main line of a power system, and the control cable directly transmits the electric energy to power supply connecting circuits of various electric equipment appliances from a power distribution point of the power system. However, the existing control cable has certain problems in use.
The following problems exist in the prior art:
when the existing control cable is used, most of the control cable is passively flame-retardant through the flame-retardant layer, so that the flame-retardant effect is poor.
Disclosure of Invention
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides an insulating fire-retardant anti-interference control cable, includes the cable main part, the inside of cable main part is provided with built-in fire-retardant device, the upper surface fixedly connected with anti-cutting layer of built-in fire-retardant device, the bottom surface fixedly connected with insulating layer of built-in fire-retardant device, the inside of cable main part is provided with elasticity supporting component.
The inner wall fixedly connected with annular supporting plate of insulating layer, the inner wall fixedly connected with triangular supports frame of annular supporting plate, the inner wall fixedly connected with of triangular supports frame strengthens the strip.
The fire-retardant device is characterized in that a bearing container is fixedly connected to the top of the inner wall of the built-in fire-retardant device, a dry powder extinguishing agent is arranged on the right side of the bearing container, inert compressed gas is arranged below the dry powder extinguishing agent, an elastic bearing plate is movably connected to the bottom surface of the dry powder extinguishing agent, a puncture tip is fixedly connected to the bottom surface of the elastic bearing plate, and a reaction through groove is formed in one side of the bottom end of the puncture tip.
By adopting the technical scheme, the outer part of the built-in flame retardant device in the scheme is extruded with the dry powder extinguishing agent by expansion pressure, then the elastic bearing plate is extruded to move downwards to push the thorn tips to pierce into the lower bearing plate, part of gas of the inert compressed gas at the bottom side of the lower bearing plate rapidly penetrates into the gap between the elastic bearing plate and the lower bearing plate through the reaction through groove, the elastic bearing plate is rapidly expanded to move upwards to extrude the bearing container to shrink inwards, so that the flame retardant particles can be sprayed out through the rupture groove to realize flame retardance, when the combustion is too violent, the outer wall rupture dry powder extinguishing agent of the built-in flame retardant device is responsible for the next step of fire extinguishing work, the inert compressed gas rapidly occupies the space gap generated by the rupture of the cable main body, the oxygen content is reduced, the fire extinguishing efficiency is accelerated, the distribution of the dry powder extinguishing agent and the inert compressed gas on the left side of the flame retardant particles is just opposite to the distribution on the right side of the dry powder extinguishing agent and the inert compressed gas, and the distribution directions of the pricks are also opposite, so that the burning phenomenon generated in the cable main body can be dealt with.
The technical scheme of the invention is further improved as follows: the bottom fixedly connected with of triangular supports the arc board, it keeps away from to support the arc board one side fixedly connected with adhesive of triangular supports frame, the bottom swing joint of thorn point has down the loading board, the bottom surface of loading board down with inert compressed gas's last fixed surface is connected, the both sides of thorn point are provided with spacing spring, spacing spring's top with the bottom surface fixed connection of elasticity loading board.
By adopting the technical scheme, the limiting springs arranged on the two sides of the puncture tip in the scheme effectively avoid the phenomenon that the puncture tip punctures the lower bearing plate by mistake when the cable main body is under normal pressure.
The technical scheme of the invention is further improved as follows: and flame-retardant particles are arranged on one side of the bearing container, which is far away from the dry powder fire extinguishing agent, and a cracking groove is formed in the upper surface of the built-in flame-retardant device.
By adopting the technical scheme, the cracking groove in the scheme is convenient for the flame-retardant particles to be sprayed out.
The technical scheme of the invention is further improved as follows: the inner wall of the elastic supporting assembly is fixedly connected with a radiation spring rod, one side of the bottom end of the radiation spring rod is fixedly connected with a limiting strip, and the outer wall of the radiation spring rod is provided with a filling material.
By adopting the technical scheme, the projectile releasing spring rods are distributed in a radial mode, so that the deformation impact of the outer wall of the elastic supporting component in a bearing mode can be dispersed, and the phenomenon that the elastic supporting component is too much in local stress and exceeds the bearing range of the outer wall of the elastic supporting component to cause elastic fatigue and cannot buffer the next time is avoided.
The technical scheme of the invention is further improved as follows: and a bearing spring is arranged on one side of the built-in flame retardant device, the bottom end of the bearing spring is fixedly connected with the inner wall of the cutting-proof layer, and the bottom end of the bearing spring is fixedly connected with the outer wall of the insulating layer.
The technical scheme of the invention is further improved as follows: the elastic supporting assembly is characterized in that an elastic protection ring is fixedly connected to the outer wall of the right side of the elastic supporting assembly, a shielding layer is fixedly connected to the inner wall of the elastic protection ring, and a cable core is fixedly connected to the inner wall of the shielding layer.
The technical scheme of the invention is further improved as follows: the outer wall fixedly connected with waterproof layer on anti-cutting layer, the outer wall fixedly connected with of waterproof layer consolidates the inoxidizing coating.
Adopt above-mentioned technical scheme, under the outer condition that appears corroding the damage of the protection skin of the cable main part in this scheme, the waterproof layer that the inside of cable main part set up effectively avoids its outside water to get into its inner space along damaged department.
The technical scheme of the invention is further improved as follows: the inside fixedly connected with anti-cutting reinforcing strip on anti-cutting layer.
By adopting the technical scheme, the cutting-proof layer sleeved on the inner wall of the waterproof layer in the scheme enhances the structural strength of the cable main body, and reduces the damage influence on the cable main body caused by external uncertain factors in the use process.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:
1. the invention provides an insulating flame-retardant anti-interference control cable, which extrudes a dry powder extinguishing agent by the external expansion pressure of a built-in flame-retardant device, then extrudes an elastic bearing plate to move downwards to push a puncture tip to puncture into a lower bearing plate, part of gas of inert compressed gas at the bottom side of the lower bearing plate rapidly diffuses into a gap between the elastic bearing plate and the lower bearing plate through a reaction through groove, rapidly expands to push the elastic bearing plate to move upwards to extrude a bearing container to contract inwards, so that flame-retardant particles can be sprayed out through a cracking groove to realize flame retardance, when the combustion is too violent, the dry powder extinguishing agent with cracked outer wall of the built-in flame-retardant device is responsible for the next fire extinguishing work, the inert compressed gas rapidly occupies a space gap generated by the cracking of a cable main body, the oxygen content is reduced, the fire extinguishing efficiency is accelerated, the distribution of the dry powder extinguishing agent at the left side of the flame-retardant particles and the inert compressed gas is just opposite to the right side of the flame-retardant particles, simultaneously, the distribution directions of the prickling points are also opposite, so that the combustion phenomenon generated in the cable main body can be coped with, and the problem that most of the existing control cables are passively flame-retardant through a flame-retardant layer to cause poor flame-retardant effect is solved.
2. The invention provides an insulating flame-retardant anti-interference control cable, wherein under the condition that a protective outer layer of a cable main body is corroded and damaged, a waterproof layer arranged inside the cable main body effectively prevents water outside the cable main body from entering an inner space of the cable main body along the damaged part, a cutting-proof layer sleeved on the inner wall of the waterproof layer enhances the structural strength of the cable main body, the damage influence of external uncertain factors on the cable main body in the using process is reduced, and the integral protective strength of the cable main body is further improved through a cutting-proof reinforcing strip arranged on the cutting-proof layer, so that the cutting-proof layer and the reinforcing protective layer become a first protective layer of a cable core.
3. The invention provides an insulating flame-retardant anti-interference control cable, wherein when heavy mobile equipment works, a cable main body is extruded, when the cable main body is extruded, the top end of an arc-shaped bearing spring is inwards compressed under external force, and a radiation spring rod in an elastic supporting component is also extruded at the moment, so that the bearing spring and the elastic supporting component are deformed to generate reaction force to counteract impact, the bearing spring and the elastic supporting component become a second protective layer of a cable core, and the radiation spring rods arranged in the elastic supporting component are distributed in a radiation manner, so that the deformation impact borne by the outer wall of the elastic supporting component is dispersed, and the phenomenon that the local stress is too much and exceeds the bearing range of the outer wall of the elastic supporting component, so that the elastic fatigue of the elastic supporting component cannot be buffered next time is avoided.
4. The invention provides an insulating flame-retardant anti-interference control cable, which is characterized in that an annular support plate, a triangular support frame, a reinforcing strip and a support arc plate are arranged on the inner wall of an insulating layer and are matched with each other, so that the protection capability of a cable core is further improved, the requirements on the axial tensile capability and the radial impact resistance and bending capability of the cable core are improved, the service life of a cable main body is prolonged, and further, the insulating layer has an insulating protection effect.
Drawings
FIG. 1 is a schematic structural view of a cable body according to the present invention;
FIG. 2 is a schematic cross-sectional view of a cable body according to the present invention;
FIG. 3 is a schematic view of the elastic support assembly of the present invention;
FIG. 4 is an enlarged view of the structure at A of the present invention;
FIG. 5 is a schematic structural view of a built-in flame retardant device of the present invention;
FIG. 6 is an enlarged view of the structure at B of the present invention;
FIG. 7 is a schematic view of a partial structure of the anti-cutting layer of the present invention.
In the figure: 1. a cable body; 2. a flame retardant device is arranged inside; 3. a load bearing spring; 4. an elastic support member; 5. a cable core; 6. reinforcing the protective layer; 7. a waterproof layer; 8. a cut-resistant layer; 9. an insulating layer; 10. an elastic protection ring; 11. a shielding layer; 12. an annular support plate; 13. a triangular support frame; 14. a reinforcing strip; 15. supporting the arc plate; 16. a binder; 17. anti-cutting reinforcing strips; 21. a dry powder extinguishing agent; 22. an inert compressed gas; 23. flame retardant particles; 24. a carrying container; 25. an elastic bearing plate; 26. a lower bearing plate; 27. pricking; 28. a reaction through groove; 29. a limiting spring; 41. a filler; 42. a radiation spring rod; 43. and (5) a limiting strip.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
example 1
As shown in fig. 1-7, the present invention provides an insulating flame-retardant anti-interference control cable, which comprises a cable main body 1, a built-in flame-retardant device 2 is arranged inside the cable main body 1, an anti-cutting layer 8 is fixedly connected to the upper surface of the built-in flame-retardant device 2, an insulating layer 9 is fixedly connected to the bottom surface of the built-in flame-retardant device 2, the insulating layer 9 plays an insulating protection role, an elastic support component 4 is arranged inside the cable main body 1, the cable main body 1 is extruded, the top end of an arc-shaped bearing spring 3 is compressed inwards under an external force, at this time, a radiation spring rod 42 inside the elastic support component 4 is also extruded, so that the bearing spring 3 and the elastic support component 4 are structurally deformed to generate a reaction force to offset impact, the bearing spring 3 and the elastic support component 4 become a second protective layer of a cable core 5, an annular support plate 12 is fixedly connected to the inner wall of the insulating layer 9, the inner wall fixedly connected with triangular supports frame 13 of annular support board 12, the inner wall fixedly connected with of triangular supports frame 13 strengthens strip 14, and annular support board 12, triangular supports frame 13, the strip 14 and the support arc board 15 through the installation of insulating layer 9 inner wall cooperate each other for four, have further improved the protective capacities to cable core 5, have improved 5 axial tensile capacity of cable core and have radially resisted impact, the needs of the ability of buckling.
The top of the inner wall of the built-in flame retardant device 2 is fixedly connected with a bearing container 24, the right side of the bearing container 24 is provided with a dry powder extinguishing agent 21, when the external part of the cable main body 1 burns, the external part of the built-in flame retardant device 2 is pressed by expansion pressure to extrude the dry powder extinguishing agent 21, an inert compressed gas 22 is arranged below the dry powder extinguishing agent 21, the bottom surface of the dry powder extinguishing agent 21 is movably connected with an elastic bearing plate 25, the bottom surface of the elastic bearing plate 25 is fixedly connected with a puncture tip 27, the dry powder extinguishing agent 21 is pressed to extrude the elastic bearing plate 25 to move downwards to push the puncture tip 27 to pierce into a lower bearing plate 26, one side of the bottom end of the puncture tip 27 is provided with a reaction through groove 28, a part of the inert compressed gas 22 at the bottom side of the lower bearing plate 26 rapidly diffuses between a gap between the elastic bearing plate 25 and the lower bearing plate 26 through the reaction through groove 28, and rapidly expands to push the elastic bearing plate 25 to move upwards to extrude the bearing container 24 to contract inwards after the pressure is reduced, make fire-retardant granule 23 can carry out fire-retardant through breaking the groove blowout, when the burning is too violent, the outer wall of built-in flame retardant device 2 breaks dry powder extinguishing agent 21 and then is responsible for the work of putting out a fire next step, inert compressed gas 22 then occupies rapidly within the space clearance that cable main part 1 broke and produces, reduce oxygen and account for than, accelerate fire extinguishing efficiency, fire-retardant granule 23 left side dry powder extinguishing agent 21 and inert compressed gas 22's distribution is just opposite rather than its right side, prick the distribution orientation of point 27 also same opposite simultaneously, thereby can deal with the burning phenomenon of the inside emergence of cable main part 1.
The bottom fixedly connected with of triangular supports frame 13 supports arc board 15, support one side fixedly connected with adhesive 16 that triangular supports frame 13 was kept away from to arc board 15, the bottom swing joint of thorn point 27 has lower bearing board 26, the bottom surface of lower bearing board 26 is connected with inert compressed gas 22's last fixed surface, the both sides of thorn point 27 are provided with spacing spring 29, the spacing spring 29 of thorn point 27 both sides installation, when effectively avoiding cable subject 1 normal pressure that receives, the phenomenon that thorn point 27 stings lower bearing board 26 by mistake takes place, spacing spring 29's top and the bottom surface fixed connection of elasticity bearing board 25.
Example 2
As shown in fig. 1 to 7, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the side of the carrying container 24 away from the dry powder extinguishing agent 21 is provided with the flame retardant particles 23, the upper surface of the built-in flame retardant device 2 is provided with a rupture groove, the inner wall of the elastic supporting component 4 is fixedly connected with a radiation spring rod 42, one side of the bottom end of the radiation spring rod 42 is fixedly connected with a limit strip 43, the radiation spring rods 42 arranged inside the elastic supporting component 4 are distributed in a radiation manner, the outer wall of the elastic supporting component 4 is subjected to deformation impact to be dispersed, the phenomenon that local stress is too much and exceeds the bearing range of the outer wall of the elastic supporting component 4 to cause elastic fatigue of the elastic supporting component 4 and cannot buffer next time is avoided, the outer wall of the radiation spring rod 42 is provided with the filling material 41, one side of the built-in flame retardant device 2 is provided with the bearing spring 3, the bottom end of the bearing spring 3 is fixedly connected with the inner wall of the anti-cutting layer 8, and the bottom end of the bearing spring 3 is fixedly connected with the outer wall of the insulating layer 9.
The right side outer wall fixed connection elasticity of elasticity supporting component 4 protects circle 10, the inner wall fixedly connected with shielding layer 11 of elasticity protection circle 10, the inner wall fixedly connected with cable core 5 of shielding layer 11, the outer wall fixedly connected with waterproof layer 7 of anti-cutting layer 8, the outer wall fixedly connected with reinforcement inoxidizing coating 6 of waterproof layer 7, the inside fixedly connected with anti-cutting of anti-cutting layer 8 adds the strip 17.
The working principle of the insulated flame-retardant anti-interference control cable is described in detail below
As shown in fig. 1-7, under the condition that the protection skin of the cable main body 1 is corroded and damaged, the waterproof layer 7 arranged inside the cable main body 1 effectively prevents water outside the waterproof layer from entering the inner space of the cable main body 1 along the damaged part, the cutting-proof layer 8 sleeved on the inner wall of the waterproof layer 7 enhances the structural strength of the cable main body 1, the damage influence of external uncertain factors on the cable main body 1 in the using process is reduced, and the cutting-proof reinforcing strip 17 installed on the cutting-proof layer 8 further enhances the overall protection strength of the cable main body 1, so that the cutting-proof layer 8 and the reinforcing protection layer 6 become the first protection layer of the cable core 5.
When heavy mobile device is in operation, cable body 1 can receive the extrusion, the top of arc bearing spring 3 is the internal compression under external force, the radial spring pole 42 in elasticity supporting component 4 receives the extrusion equally this moment, make bearing spring 3 and elasticity supporting component 4 two structures take place to deform, produce the reaction force, offset the impact, make bearing spring 3 and elasticity supporting component 4 become the second floor protective layer of cable core 5, and the radial spring pole 42 of 4 internally mounted of elasticity supporting component becomes the radiation and distributes, make 4 outer walls of elasticity supporting component accept ground deformation impact and can disperse, avoid local atress too much, surpass 4 outer walls of elasticity supporting component and bear the scope, lead to 4 elastic fatigue of elasticity supporting component and can't carry out next buffering.
Through annular support plate 12, triangular supports 13, reinforcing bar 14 and the support arc board 15 of the installation of insulating layer 9 inner wall, four mutually support, further improved the protective capacities to cable core 5, improved 5 axial tensile ability of cable core and radially resisted impact, the needs of the ability of buckling to increase cable main body 1's life, further, insulating layer 9 plays the effect of insulation protection.
When the external of the cable body 1 is burnt, the external of the built-in flame retardant device 2 is pressed by expansion pressure to extrude the dry powder extinguishing agent 21, the dry powder extinguishing agent 21 is pressed to extrude the elastic bearing plate 25 to move downwards to push the puncture tip 27 to pierce into the lower bearing plate 26, at this time, a part of gas of the inert compressed gas 22 at the bottom side of the lower bearing plate 26 rapidly penetrates between the gap between the elastic bearing plate 25 and the lower bearing plate 26 through the reaction through groove 28, the inert compressed gas 22 rapidly expands after the pressure is reduced to push the elastic bearing plate 25 to move upwards to extrude the bearing container 24 to contract inwards, so that the flame retardant particles 23 can be sprayed out through the rupture groove to retard flame, when the burning is too violent, the dry powder extinguishing agent 21 with the outer wall rupture of the built-in flame retardant device 2 is responsible for next step of fire extinguishing, the inert compressed gas 22 rapidly occupies the space gap generated by the rupture of the cable body 1 to reduce the oxygen ratio, the extinguishing efficiency is improved, the distribution of the dry powder extinguishing agent 21 and the inert compressed gas 22 on the left side of the flame retardant particles 23 is just opposite to that on the right side, and the distribution direction of the puncture tips 27 is also opposite, so that the combustion phenomenon generated inside the cable body 1 can be dealt with.
The limiting springs 29 arranged at the two sides of the puncturing tip 27 effectively avoid the phenomenon that the puncturing tip 27 punctures the bearing plate 26 by mistake when the cable body 1 is under normal pressure.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the invention without departing from the spirit of the inventive concept.
Claims (8)
1. The utility model provides an insulating fire-retardant anti-interference control cable, includes cable main part (1), its characterized in that: a built-in flame retardant device (2) is arranged inside the cable main body (1), the upper surface of the built-in flame retardant device (2) is fixedly connected with a cutting-resistant layer (8), the bottom surface of the built-in flame retardant device (2) is fixedly connected with an insulating layer (9), and an elastic supporting component (4) is arranged inside the cable main body (1);
an annular supporting plate (12) is fixedly connected to the inner wall of the insulating layer (9), a triangular supporting frame (13) is fixedly connected to the inner wall of the annular supporting plate (12), and a reinforcing strip (14) is fixedly connected to the inner wall of the triangular supporting frame (13);
the fire-extinguishing dry powder fire-extinguishing device is characterized in that a bearing container (24) is fixedly connected to the top of the inner wall of the built-in fire-retarding device (2), a dry powder fire-extinguishing agent (21) is arranged on the right side of the bearing container (24), an inert compressed gas (22) is arranged below the dry powder fire-extinguishing agent (21), the bottom surface of the dry powder fire-extinguishing agent (21) is movably connected with an elastic bearing plate (25), a puncture tip (27) is fixedly connected to the bottom surface of the elastic bearing plate (25), and a reaction through groove (28) is formed in one side of the bottom end of the puncture tip (27).
2. The insulated flame-retardant anti-interference control cable according to claim 1, characterized in that: the bottom fixedly connected with of triangular supports frame (13) supports arc board (15), it keeps away from to support arc board (15) one side fixedly connected with adhesive (16) of triangular supports frame (13), the bottom swing joint of thorn point (27) has lower loading board (26), the bottom surface of lower loading board (26) with the last fixed surface of inert compressed gas (22) is connected, the both sides of thorn point (27) are provided with spacing spring (29), the top of spacing spring (29) with the bottom surface fixed connection of elasticity loading board (25).
3. The insulated flame-retardant anti-interference control cable according to claim 1, characterized in that: flame-retardant particles (23) are arranged on one side, away from the dry powder extinguishing agent (21), of the bearing container (24), and a cracking groove is formed in the upper surface of the built-in flame-retardant device (2).
4. The insulated flame-retardant anti-interference control cable according to claim 1, characterized in that: the inner wall of the elastic supporting component (4) is fixedly connected with a radiation spring rod (42), one side of the bottom end of the radiation spring rod (42) is fixedly connected with a limiting strip (43), and the outer wall of the radiation spring rod (42) is provided with a filling material (41).
5. The insulated flame-retardant anti-interference control cable according to claim 1, wherein: a bearing spring (3) is arranged on one side of the built-in flame retardant device (2), the bottom end of the bearing spring (3) is fixedly connected with the inner wall of the cutting-proof layer (8), and the bottom end of the bearing spring (3) is fixedly connected with the outer wall of the insulating layer (9).
6. The insulated flame-retardant anti-interference control cable according to claim 1, wherein: the right side outer wall fixedly connected with elasticity guard ring (10) of elasticity supporting component (4), the inner wall fixedly connected with shielding layer (11) of elasticity guard ring (10), the inner wall fixedly connected with cable core (5) of shielding layer (11).
7. The insulated flame-retardant anti-interference control cable according to claim 1, wherein: the outer wall fixedly connected with waterproof layer (7) of anti-cutting layer (8), the outer wall fixedly connected with reinforcement inoxidizing coating (6) of waterproof layer (7).
8. The insulated flame-retardant anti-interference control cable according to claim 1, characterized in that: the cutting-proof layer (8) is fixedly connected with a cutting-proof reinforcing strip (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210415602.8A CN114709023A (en) | 2022-04-19 | 2022-04-19 | Insulating flame-retardant anti-interference control cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210415602.8A CN114709023A (en) | 2022-04-19 | 2022-04-19 | Insulating flame-retardant anti-interference control cable |
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| Publication Number | Publication Date |
|---|---|
| CN114709023A true CN114709023A (en) | 2022-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210415602.8A Pending CN114709023A (en) | 2022-04-19 | 2022-04-19 | Insulating flame-retardant anti-interference control cable |
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| CN (1) | CN114709023A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115862938A (en) * | 2023-01-10 | 2023-03-28 | 人民电缆集团有限公司 | Radiation-proof power cable for nuclear power station |
-
2022
- 2022-04-19 CN CN202210415602.8A patent/CN114709023A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115862938A (en) * | 2023-01-10 | 2023-03-28 | 人民电缆集团有限公司 | Radiation-proof power cable for nuclear power station |
| CN115862938B (en) * | 2023-01-10 | 2023-07-14 | 人民电缆集团有限公司 | Anti-radiation power cable for nuclear power station |
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