Fireproof alarm wire with optimized process

Abstract

The invention relates to the technical field of cables, and discloses a fireproof alarm line with an optimized process, which comprises three groups of conductors which are annularly distributed and formed by concentrically twisting five types of oxygen-free copper flexible conductor wires or six types of oxygen-free copper flexible conductor wires and additionally arranging bulletproof wires on the peripheries of copper wires, and a mica tape is arranged on the outer wall of each group of conductor; the outer wall of each mica tape is provided with flame-retardant polyester yarns which are bundled in a crossed manner; through the arrangement of the conductors, the mica tapes, the flame-retardant polyester yarns, the flame-retardant ceramic silica gel, the fireproof aluminum foil wrapping, the low-smoke halogen-free flame-retardant polyolefin oxygen insulation sheath, the flame-retardant asbestos rope, the modified polyurethane coating and the ground wire, the whole finished product is more resistant to bending, the condition that the conductors are broken is not easy to occur, the flame-retardant and fire-resistant performance of the product is enhanced, and the service life of the product is prolonged. The overall adding process can greatly improve the production efficiency, effectively solves the defect of long production period at present, and is more beneficial to winding and forming processing.

Description

Technical Field

[0001] The invention relates to the technical field of cables, in particular to a fire alarm line with optimized process. Background Art

[0002] Fire alarm cable is a cable specially used in automatic fire alarm systems. It has flame retardant, fire-resistant or flame-retardant properties. It is mainly used in fire alarm systems, factories or warehouses with flammable materials, and large mechanical equipment that requires long-term power supply.

[0003] Traditional fire alarm cables use Class I annealed copper conductors or Class II annealed copper conductors. This type of product is not resistant to bending and is prone to conductor breakage during use. At the same time, since this type of conductor is generally wrapped with a double layer of mica tape and then extruded with ceramic silicone insulation, this structure has a complex manufacturing process and low production capacity, which is not conducive to product molding and processing.

[0004] To this end, the present invention provides a fire alarm line with optimized process. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The present invention provides a process-optimized fire alarm line, comprising three groups of conductors which are arranged in a ring-shaped distribution and are made of concentric twisted Category V oxygen-free copper soft conductor wires or Category VI oxygen-free copper soft conductor wires and bulletproof wires are added around the copper wires, the outer wall of each group of the conductors is provided with a mica tape, the outer wall of each mica tape is provided with a cross-bundled flame-retardant polyester yarn, the outer wall of each flame-retardant polyester yarn is provided with a flame-retardant ceramic silica gel, the outer walls of the three flame-retardant ceramic silica gels are jointly provided with a fire-proof aluminum foil wrap, the outer side of the fire-proof aluminum foil wrap is provided with a low-smoke halogen-free flame-retardant polyolefin oxygen-isolating sheath, and the fire-proof aluminum foil wrap is connected to the low-smoke halogen-free flame-retardant polyolefin oxygen-isolating sheath. Flame-retardant asbestos rope is filled between the low-smoke halogen-free flame-retardant polyolefin oxygen-isolating sheaths, the outer wall of the low-smoke halogen-free flame-retardant polyolefin oxygen-isolating sheath is sprayed with a modified polyurethane coating, and a ground wire is arranged inside the fire-proof aluminum foil wrapping; by arranging conductors, mica tapes, flame-retardant polyester yarns, flame-retardant ceramic silicone, fire-retardant aluminum foil wrapping, low-smoke halogen-free flame-retardant polyolefin oxygen-isolating sheaths, flame-retardant asbestos ropes, modified polyurethane coatings and ground wires, the finished product as a whole is not prone to conductor breakage, and the flame-retardant and fire-resistant properties of the product are enhanced. The overall installation process can greatly improve production efficiency, effectively solve the current disadvantage of long production cycle, and is more conducive to winding and molding processing.

[0007] Preferably, a collar is provided on the outside of the conductor, and three groups of protective components capable of elastically supporting the conductor are equidistantly provided on the collar in the circumferential direction, and a thermal drive component for driving the protective component to move is provided on the collar; multiple groups of flexible steel plates can form a physical barrier to a certain extent, blocking the flame from continuing to spread along the cable sheath, which helps to maintain the normal function of the cable in the early stage of a fire, so that it can more accurately transmit the fire alarm signal to the monitoring system, buy more time for subsequent fire fighting and personnel evacuation, and further enhance the overall fireproof performance of the cable; in a high temperature fire environment, after multiple groups of flexible steel plates are ejected, an additional protective layer can be formed outside the cable sheath, It shares part of the heat and reduces the degree of direct heating of the outer skin, thereby protecting the internal structure of the cable and ensuring that the overall electrical performance of the cable is maintained for a certain period of time. At the same time, the pop-up flexible steel plate can provide a certain buffering protection for the cable, avoiding the breakage of the internal core wire of the cable or other damage caused by external force impact. The pop-up flexible steel plate causes a significant change in the appearance of the cable. For personnel conducting rescue and evacuation work at the fire scene, this is an intuitive warning, reminding them that there are cables here and there may be dangerous situations such as electrical faults, prompting them to maintain a certain safe distance and avoid secondary accidents such as electric shock caused by touching damaged cables.

[0008] Preferably, the protection assembly includes a fixing groove, a disc, a flexible steel plate, a spring and a limit plate; The ring is provided with three fixed grooves equidistantly in the circumferential direction, each of the fixed grooves is rotatably connected with a disc, five flexible steel plates are arranged on the top of the disc in sequence from top to bottom, the five flexible steel plates are rotatably connected through a rotating shaft, two springs are connected between any two adjacent flexible steel plates, the inner wall of each fixed groove is connected to a limiting plate, the flexible steel plate at the bottom is connected to the surface of the disc, and the top of the flexible steel plate at the top is attached to the bottom of the limiting plate.

[0009] Preferably, the thermosensitive drive assembly comprises a vertical rod, a gear, a rack plate, a sealing plate, a sleeve and carbon dioxide gas; One end of each disc away from the flexible steel plate is connected to a vertical rod, each of the vertical rods is rotatably connected to the inner wall of the fixed groove, the outer wall of each vertical rod is sleeved with a gear, the outer wall of each gear is meshed with a rack plate, each end of the rack plate away from the gear is connected to a sealing plate, the outer wall of each sealing plate is slidably connected to a sleeve, each sleeve is connected to the outer wall of the ring, and the interior of the sleeve is filled with carbon dioxide gas.

[0010] Preferably, each of the fixed grooves is provided with a slide groove, each of the slide grooves is slidably connected with a slider, and each slider is connected to the outer wall of the rack plate; when the sealing plate drives the rack plate to move inside the ring, the rack plate drives the slider to slide inside the slide groove, which can keep the rack plate stable during movement and keep the meshing between the rack plate and the gear stable.

[0011] Preferably, each of the flexible steel plates at the upper end is provided with a fire extinguishing assembly, each of the limit plates is connected to a blade, and each of the blades is inserted into the fire extinguishing assembly; the flexible steel plate is rotated and popped out, so that the blade moves inside the fire extinguishing assembly, and then the fire extinguishing assembly is synchronously popped out to perform the fire extinguishing operation.

[0012] Preferably, the fire extinguishing assembly comprises a placement tank and a powdered fire extinguishing agent; Each of the flexible steel plates at the upper end is provided with a placement groove, and each of the placement grooves is filled with powder fire extinguishing agent.

[0013] Preferably, each of the flexible steel plates at the upper end is provided with a tearable thin cloth on its surface, and each of the tearable thin cloths is provided with a preset tear line that cooperates with the sliding of the blade; in the early stage of a fire, the powder fire extinguishing agent placed inside the groove can quickly extinguish the initial small flames, and the powder fire extinguishing agent can not only extinguish the flame, but also form a covering layer on the surface of the burning object to isolate the air, and prevent the burning object from re-burning due to residual heat or re-contact with oxygen after the fire seems to be extinguished, thereby reducing the risk of re-ignition, and at the same time, the powder fire extinguishing agent will absorb part of the heat after being spilled, thereby reducing the temperature environment around the cable, reducing the melting of the cable sheath due to heat, and thus extending the service life of the cable.

[0014] The beneficial effects of the present invention are as follows: the process-optimized fire alarm line described in the present invention is provided with a conductor, a mica tape, a flame-retardant polyester yarn, a flame-retardant ceramic silica gel, a fire-proof aluminum foil wrapping, a low-smoke halogen-free flame-retardant polyolefin oxygen-isolating sheath, a flame-retardant asbestos rope, a modified polyurethane coating and a ground wire, so that the finished product is overall softer, more resistant to bending, and less likely to have a conductor breakage, thereby enhancing the flame retardant and fire-resistant performance of the product. The overall installation process can greatly improve the production efficiency, effectively solve the current drawback of a long production cycle, and at the same time reduce the problem of scratches on the appearance of the finished product during the processing process, which is more conducive to winding and molding processing; After the flexible steel plate is heated, it pops out from the inside of the ring under the drive of the thermal drive component. When the flexible steel plate pops out, it automatically sprays out powder fire extinguishing agent. The powder fire extinguishing agent is combined with the physical barrier formed by the flexible steel plate, and the chemical fire extinguishing effect of the powder fire extinguishing agent forms a synergistic effect. The flexible steel plate blocks the circulation of flames and air, and the powder fire extinguishing agent extinguishes the flame and suppresses the re-ignition. The two work together to provide more comprehensive and more effective fire protection measures for the cable and the surrounding environment, making the entire fire protection system more complete and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a stereogram of an embodiment of the present invention; Figure 2 It is a partial schematic diagram of the three-dimensional structure cross section of the conductor in the present invention; Figure 3 It is a partial schematic diagram of the three-dimensional structure section of the sleeve of the present invention; Figure 4 It is a partial schematic diagram of the three-dimensional structure section of the sleeve of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the disc, flexible steel plate, spring, rack plate, sealing plate, slider and fire extinguishing assembly of the present invention; Figure 6 It is a partial schematic diagram of the three-dimensional structure section of the sleeve of the present invention; Figure 7 It is a schematic diagram of the active state of the flexible steel plate of the present invention; Figure 8 It is a partial cross-sectional view of the three-dimensional structure of the flexible steel plate of the present invention; Fig. 9 yes Figure 3 A partial enlarged schematic diagram of part A.

[0016] Description of reference numerals: 1. Conductor; 101. Mica tape; 102. Flame-retardant polyester yarn; 103. Flame-retardant ceramic silicone; 104. Fire-proof aluminum foil wrapping; 105. Low-smoke halogen-free flame-retardant polyolefin oxygen-isolating sheath; 106. Flame-retardant asbestos rope; 107. Modified polyurethane coating; 108. Ground wire; 2. Ring; 3. Protective assembly; 301. Fixing groove; 302. Disc; 303. Flexible steel plate; 304. Spring; 305. Limiting plate; 4. Thermosensitive drive assembly; 401. upright pole; 402. gear; 403. rack plate; 404. sealing plate; 405. sleeve; 406. carbon dioxide gas; 407. slideway; 408. slider; 5. Fire extinguishing assembly; 501. Placement slot; 502. Powdered fire extinguishing agent; 503. Tearable thin cloth; 504. Preset tear line; 6. Blade. DETAILED DESCRIPTION

[0017] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0018] Embodiment 1 like Figures 1 to 8 Please refer to Figure 2 A process-optimized fire alarm line according to an embodiment of the present invention comprises three groups of conductors 1 arranged in a ring-shaped distribution, which are made of concentric twisted Category V oxygen-free copper soft conductor wires or Category VI oxygen-free copper soft conductor wires and additionally provided with bulletproof wires around the copper wires. The outer wall of each group of conductors 1 is provided with a mica tape 101, and the outer wall of each mica tape 101 is provided with a cross-bundled flame-retardant polyester wire 102, and the outer wall of each flame-retardant polyester wire 102 is provided with a flame-retardant ceramic silica gel 103. The three flame-retardant The outer wall of the ceramic silicone 103 is jointly provided with a fireproof aluminum foil wrap 104, and a low-smoke halogen-free flame-retardant polyolefin oxygen-isolating sheath 105 is installed on the outside of the fireproof aluminum foil wrap 104, and a flame-retardant asbestos rope 106 is filled between the fireproof aluminum foil wrap 104 and the low-smoke halogen-free flame-retardant polyolefin oxygen-isolating sheath 105, and the outer wall of the low-smoke halogen-free flame-retardant polyolefin oxygen-isolating sheath 105 is sprayed with a modified polyurethane coating 107, and a ground wire 108 is arranged inside the fireproof aluminum foil wrap 104.

[0019] Conductor 1 is made of Category 5 oxygen-free copper soft conductor wire or Category 6 oxygen-free copper soft conductor wire, coaxially twisted copper wire with bulletproof wire added around it to increase the tensile strength and bending radius of the product, and enhance the product's shockproof, tensile and bending resistance. The outside of the mica tape 101 is cross-bound with a flame-retardant polyester wire 102 in a mesh, and the mica tape 101 is shaped in time to prevent the mica tape 101 from cracking or overlapping, thereby ensuring the fireproof effect of the mica tape 101. Then, the outer layer is extruded with flame-retardant ceramic silicone 103 to reinforce the shaping and crusting of the mica tape 101, thereby stabilizing the fire-resistant effect of the mica tape 101. The double-layer flame-retardant polyester wire 102 is bound and the double-layer flame-retardant ceramic silicone 103 is insulated and crusted, adding four layers of protection to the mica tape 101, effectively improving the flame-retardant and fire-resistant performance of the product. The cable is filled with flame-retardant asbestos rope 106, which effectively alleviates the risk of falling objects from the cable during a fire. The impact damage to the mica tape 101 prolongs the cable circuit integrity performance and enhances the flame retardant and fire resistant performance of the product. The cable adopts a low-smoke halogen-free flame retardant polyolefin oxygen-isolating sheath 105. When the cable burns at the fire scene, it releases very little halogen-free acid gas, toxic and corrosive gas, and produces very low smoke concentration, with good flame retardant effect. In the event of a fire, it can effectively provide people with good escape conditions. When the external processing procedure of the cable sheath is completed, the wear-resistant, oil-resistant, acid-resistant, alkali-resistant, high-temperature-resistant and corrosion-resistant modified polyurethane coating 107 is added and completed simultaneously with the sheath layer, which solves the problem of scratches during the product processing process. Under the action of the ground wire 108, a safe conductive path can be provided for the cable leakage current, so that the leakage current can be promptly introduced into the earth, rather than through the human body or other potentially dangerous pathways, greatly reducing the risk of electric shock casualties.

[0020] Embodiment 2 like Figures 1 to 8 As shown, compared with Example 1, another implementation of the present invention is: a ring 2 is arranged on the outside of the conductor 1, three groups of protective components 3 that can elastically support the conductor 1 are equidistantly arranged on the ring 2 in the circumferential direction, and a thermistor driving component 4 that drives the protective component 3 to move is arranged on the ring 2.

[0021] Please refer to Figure 3 , Figure 4 , Figure 5 , the thermal drive assembly 4 includes a vertical rod 401, a gear 402, a rack plate 403, a sealing plate 404, a sleeve 405 and a carbon dioxide gas 406; One end of each disc 302 away from the flexible steel plate 303 is connected to a vertical rod 401, each vertical rod 401 is rotatably connected to the inner wall of the fixed groove 301, the outer wall of each vertical rod 401 is sleeved with a gear 402, the outer wall of each gear 402 is meshed with a rack plate 403, and the end of each rack plate 403 away from the gear 402 is connected to a sealing plate 404, and the outer wall of each sealing plate 404 is slidably connected to a sleeve 405, and each sleeve 405 is connected to the outer wall of the collar 2. The interior of the cylinder 405 is filled with carbon dioxide gas 406; when the sleeve 405 is heated by fire, the carbon dioxide gas 406 will expand due to the heat. After the expansion, the carbon dioxide gas 406 will push the sealing plate 404 to move inside the sleeve 405, so that the sealing plate 404 drives the rack plate 403 to move inside the ring 2. When the rack plate 403 moves, the gear 402 connected to the vertical rod 401 rotates inside the fixed groove 301, so that the disk 302 at the top of the vertical rod 401 rotates ninety degrees.

[0022] The components in the thermistor drive assembly 4 are all made of copper alloy. When the outside temperature rises to about 100 degrees, the molecular movement of the carbon dioxide gas 406 will be significantly accelerated, increasing its fluidity. The carbon dioxide gas 406 drives the sealing plate 404 to move inside the sleeve 405, which can make the disk 302 at the top of the vertical rod 401 rotate ninety degrees.

[0023] Please refer to Figure 6 A slide groove 407 is provided inside each fixed groove 301, and a slider 408 is slidably connected inside each slide groove 407, and each slider 408 is connected to the outer wall of the rack plate 403; when the sealing plate 404 drives the rack plate 403 to move inside the ring 2, the rack plate 403 drives the slider 408 to slide inside the slide groove 407, which can keep the rack plate 403 stable during movement and keep the meshing between the rack plate 403 and the gear 402 stable.

[0024] Please refer to Figure 3 , Figure 5 , Figure 7 , the protection component 3 includes a fixing groove 301, a disc 302, a flexible steel plate 303, a spring 304 and a limit plate 305; Three fixed grooves 301 are equidistantly provided on the circumferential surface of the collar 2, each fixed groove 301 is rotatably connected with a disc 302, five flexible steel plates 303 are arranged on the top of the disc 302 from top to bottom, the five flexible steel plates 303 are rotatably connected through a rotating shaft, two springs 304 are connected between two adjacent flexible steel plates 303, and the inner wall of each fixed groove 301 is connected to a limiting plate 305, the flexible steel plate 303 at the bottom is connected to the surface of the disc 302, and the top of the flexible steel plate 303 at the top is attached to the bottom of the limiting plate 305; the disc 302 drives multiple flexible steel plates 303 The cable is rotated synchronously by ninety degrees inside the fixing groove 301, so that the bottom end of the limit plate 305 no longer fits the surface of the top flexible steel plate 303. Under the action of multiple springs 304, multiple flexible steel plates 303 can be ejected from the fixing groove 301. The ejected flexible steel plates 303 significantly change the appearance of the cable. For personnel performing rescue and evacuation work at the fire scene, this is an intuitive warning, reminding them that there are cables here and there may be dangerous situations such as electrical faults, prompting them to maintain a certain safe distance to avoid secondary accidents such as electric shock caused by touching damaged cables.

[0025] Embodiment 3 like Figures 8 to 9 As shown in Comparative Example 1, another embodiment of the present invention is: Please refer to Figure 3 , Figure 5 , Figure 6 , Figure 8Each flexible steel plate 303 at the upper end is provided with a fire extinguishing assembly 5, each limiting plate 305 is connected with a blade 6, and each blade 6 is inserted into the fire extinguishing assembly 5. The fire extinguishing assembly 5 includes a placement groove 501 and a powder fire extinguishing agent 502; each flexible steel plate 303 at the upper end is provided with a placement groove 501, and each placement groove 501 is filled with a powder fire extinguishing agent 502. The surface of each flexible steel plate 303 at the upper end is provided with a tearable thin cloth 503, and each tearable thin cloth 503 is provided with a preset tearing line 504 cooperating with the sliding of the blade 6; when the disc 302 drives the multiple flexible steel plates 303 to rotate synchronously by 90 degrees inside the fixed groove 301, the flexible steel plate 303 at the top will rotate along the blade 6 at the bottom of the limit plate 305, so that the blade 6 will move along the preset tearing line 504, thereby cutting the tearable thin cloth 503, and when the flexible steel plate 303 is ejected, the placement groove 50 1 The powder fire extinguishing agent 502 inside will be scattered when ejected. In the early stage of a fire, it can quickly extinguish the initial small flames. The powder fire extinguishing agent 502 can not only extinguish the flame, but also form a covering layer on the surface of the burning object to isolate the air and prevent the burning object from re-burning due to residual heat or re-contact with oxygen after the fire seems to be extinguished, thereby reducing the risk of re-ignition. At the same time, the powder fire extinguishing agent 502 will absorb part of the heat after being sprinkled, thereby reducing the temperature environment around the cable, reducing the melting of the cable sheath due to heat, and thus extending the service life of the cable.

[0026] Working principle: Conductor 1 is made of Category 5 oxygen-free copper soft conductor wire or Category 6 oxygen-free copper soft conductor wire concentrically twisted copper wire with bulletproof wire around it to increase the tensile strength and bending radius of the product, and enhance the product's shockproof, tensile and bending resistance. The outside of the mica tape 101 is cross-bound by a flame-retardant polyester wire 102 mesh to shape the mica tape 101 in time to prevent the mica tape 101 from cracking or overlapping, thereby ensuring the fireproof effect of the mica tape 101. Then, the flame-retardant ceramic silicone 103 is extruded on the outer layer to reinforce the shaping and crusting of the mica tape 101, thereby stabilizing the fire-resistant effect of the mica tape 101. The double-layer flame-retardant polyester wire 102 is bound and the double-layer flame-retardant ceramic silicone 103 insulation crust is solidified, adding four layers of protection to the mica tape 101, effectively improving the product's flame-retardant and fire-resistant properties. The cable is filled with flame-retardant asbestos rope 106, which effectively alleviates the cable during a fire. The impact damage of falling objects on the mica tape 101 prolongs the integrity of the cable circuit and enhances the flame retardant and fire resistant performance of the product. The cable adopts a low-smoke halogen-free flame-retardant polyolefin oxygen-isolating sheath 105. When the cable burns at the fire scene, the halogen-free acid gas, toxic and corrosive gas content released are very small, the smoke concentration generated is extremely low, and the flame retardant effect is good. In the event of a fire, it can effectively provide people with good escape conditions. When the external processing procedure of the cable sheath is completed, the wear-resistant, oil-resistant, acid-resistant, alkali-resistant, high-temperature-resistant and anti-corrosion modified polyurethane coating 107 is added and completed simultaneously with the sheath layer, which solves the problem of scratches during the product processing process. Under the action of the ground wire 108, a safe conductive path can be provided for the cable leakage current, so that the leakage current can be timely introduced into the earth, rather than through the human body or other potentially dangerous paths, greatly reducing the risk of electric shock casualties; When the sleeve 405 is heated up by fire, the carbon dioxide gas 406 will expand due to the heat. After the expansion, the carbon dioxide gas 406 will push the sealing plate 404 to move inside the sleeve 405, so that the sealing plate 404 drives the rack plate 403 to move inside the ring 2, and the rack plate 403 drives the slider 408 to slide inside the slide groove 407. When the rack plate 403 moves, the driving gear 402 connected to the vertical rod 401 rotates inside the fixed groove 301, so that the disk 302 at the top of the vertical rod 401 rotates ninety degrees, and the disk 302 drives multiple flexible steel plates 303 to rotate ninety degrees synchronously inside the fixed groove 301, so that the bottom end of the limit plate 305 no longer fits the surface of the top flexible steel plate 303. Under the action of multiple springs 304, the multiple flexible steel plates 303 can be ejected from the fixed groove 301, and inside each group of protective components 3 After all the flexible steel plates 303 are ejected, the popped-out flexible steel plates 303 cause a significant change in the appearance of the cable. This is an intuitive warning for personnel who are performing rescue and evacuation work at the fire scene, reminding them that there are cables here and there may be dangerous situations such as electrical faults, prompting them to maintain a certain safe distance to avoid secondary accidents such as electric shock caused by touching damaged cables. In the high temperature environment of the fire, after multiple sets of flexible steel plates 303 are ejected, an additional protective layer can be formed outside the cable sheath to share part of the heat and reduce the degree of direct heating of the sheath, thereby protecting the internal structure of the cable and ensuring that the overall electrical performance of the cable is maintained for a certain period of time. At the same time, the popped-out flexible steel plates 303 can play a certain buffering and protective role on the cable to avoid the breakage or other damage to the internal core wire of the cable caused by external force impact; When the disc 302 drives the multiple flexible steel plates 303 to rotate synchronously by ninety degrees inside the fixed groove 301, the flexible steel plate 303 at the top will rotate along the blade 6 at the bottom of the limiting plate 305, so that the blade 6 will move along the preset tear line 504, thereby cutting the tearable thin cloth 503. When the flexible steel plate 303 is ejected, the powder fire extinguishing agent 502 inside the placement groove 501 will be spilled during the ejection. In the early stage of a fire, the initial small flames can be quickly extinguished. The powder fire extinguishing agent 502 can not only extinguish the flame, but also form a covering layer on the surface of the burning object to isolate the air, thereby preventing the burning object from re-burning due to residual heat or re-contact with oxygen after the fire seems to be extinguished, thereby reducing the risk of re-ignition. At the same time, the powder fire extinguishing agent 502 will absorb part of the heat after being spilled, thereby reducing the temperature environment around the cable, reducing the melting of the cable sheath due to heat, and thus extending the service life of the cable.

[0027] An example of the present specific implementation mode is described above, but the present embodiment is not limited to the above-mentioned specific implementation mode, which is merely illustrative and not restrictive. A person skilled in the art may make many forms inspired by the present embodiment, all of which are protected by the present embodiment.

Claims

1. A process-optimized fire alarm line, characterized in that: The invention comprises three groups of conductors (1) arranged in an annular distribution, which are made of concentric twisted Category V oxygen-free copper soft conductor wires or Category VI oxygen-free copper soft conductor wires and bulletproof wires are added around the copper wires, the outer wall of each group of the conductors (1) is provided with a mica tape (101), the outer wall of each mica tape (101) is provided with cross-bound flame-retardant polyester wires (102), the outer wall of each flame-retardant polyester wire (102) is provided with flame-retardant ceramic silica gel (103), and the outer walls of the three flame-retardant ceramic silica gels (103) are connected to each other. A fireproof aluminum foil wrap (104) is provided, a low-smoke halogen-free flame-retardant polyolefin oxygen-isolating sheath (105) is installed on the outside of the fireproof aluminum foil wrap (104), and a flame-retardant asbestos rope (106) is filled between the fireproof aluminum foil wrap (104) and the low-smoke halogen-free flame-retardant polyolefin oxygen-isolating sheath (105), a modified polyurethane coating (107) is sprayed on the outer wall of the low-smoke halogen-free flame-retardant polyolefin oxygen-isolating sheath (105), and a ground wire (108) is provided inside the fireproof aluminum foil wrap (104).

2. The process-optimized fire alarm line according to claim 1, characterized in that: A collar (2) is disposed outside the conductor (1), three groups of protective components (3) capable of elastically supporting the conductor (1) are equidistantly disposed circumferentially on the collar (2), and a thermally sensitive driving component (4) for driving the protective component (3) to move is disposed on the collar (2).

3. The process-optimized fire alarm line according to claim 2, characterized in that: The protection component (3) comprises a fixing groove (301), a disc (302), a flexible steel plate (303), a spring (304) and a limit plate (305); The collar (2) is provided with three fixed grooves (301) equidistantly in the circumferential direction, each of the fixed grooves (301) is rotatably connected to a disk (302), five flexible steel plates (303) are arranged on the top of the disk (302) in order from top to bottom, the five flexible steel plates (303) are rotatably connected to each other via a rotating shaft, two springs (304) are connected between two adjacent flexible steel plates (303), the inner wall of each fixed groove (301) is connected to a limiting plate (305), the flexible steel plate (303) at the bottom is connected to the surface of the disk (302), and the top of the flexible steel plate (303) at the top is attached to the bottom of the limiting plate (305).

4. The process-optimized fire alarm line according to claim 3, characterized in that: The thermosensitive driving assembly (4) comprises a vertical rod (401), a gear (402), a rack plate (403), a sealing plate (404), a sleeve (405) and carbon dioxide gas (406); One end of each of the disks (302) away from the flexible steel plate (303) is connected to a vertical rod (401), each of the vertical rods (401) is rotatably connected to the inner wall of the fixing groove (301), the outer wall of each of the vertical rods (401) is sleeved with a gear (402), the outer wall of each of the gears (402) is meshed with a rack plate (403), one end of each of the rack plates (403) away from the gear (402) is connected to a sealing plate (404), the outer wall of each of the sealing plates (404) is slidably connected to a sleeve (405), each of the sleeves (405) is connected to the outer wall of the collar (2), and the interior of the sleeve (405) is filled with carbon dioxide gas (406).

5. The process-optimized fire alarm line according to claim 4, characterized in that: Each of the fixed grooves (301) is provided with a sliding groove (407), each of the sliding grooves (407) is slidably connected to a sliding block (408), and each of the sliding blocks (408) is connected to the outer wall of the rack plate (403).

6. The process-optimized fire alarm line according to claim 3, characterized in that: Each of the flexible steel plates (303) at the upper end is provided with a fire extinguishing assembly (5), each of the limiting plates (305) is connected to a blade (6), and each of the blades (6) is inserted into the fire extinguishing assembly (5).

7. The process-optimized fire alarm line according to claim 6, characterized in that: The fire extinguishing assembly (5) comprises a placement groove (501) and a powdered fire extinguishing agent (502); Each of the flexible steel plates (303) at the upper end is provided with a placement groove (501) therein, and each of the placement grooves (501) is filled with a powdered fire extinguishing agent (502).

8. The process-optimized fire alarm line according to claim 7, characterized in that: The surface of each of the flexible steel plates (303) at the upper end is provided with a tearable thin cloth (503), and each of the tearable thin cloths (503) is provided with a preset tear line (504) that cooperates with the sliding of the blade (6).

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