Fireproof cable sheath cooling device

Abstract

The invention discloses a fireproof cable sheath cooling device, and particularly relates to the technical field of cable processing, the device comprises a cooling machine and a cable, one end of the cooling machine is provided with a cooling mechanism used for metal cooling of a cable surface sheath, and the other end of the cooling machine is provided with a cooling mechanism used for metal cooling of the cable surface sheath. The cooling machine is internally provided with an air cooling mechanism used for carrying out air cooling on a cable surface coating, through the cooling mechanism and the air cooling mechanism, the metal roller is in large-area close contact with the cable, and through solid heat conduction, heat can be directly and rapidly transferred to internal cooling liquid from an outer sheath, so that the heat of the cable surface coating can be rapidly taken away, and the service life of the cable is prolonged. The dry cooler is used for preparing low-temperature air, the low-temperature air is fed into the first connecting pipe through the second connecting pipe and sprayed out through the horn mouth, uniform convective heat exchange can be conducted on the whole surface of the cable through air cooling, hot spots are eliminated, the temperature of the cross section is uniform, and the cable surface covering sleeve is cooled through solid heat conduction and air cooling.

Description

Technical Field

[0001] This application relates to the field of cable processing technology, and more specifically, to a cooling device for fireproof cable sheathing. Background Technology

[0002] In the production and manufacturing of fire-resistant cables, the traditional production process typically uses multi-stage independent water circulation cooling tanks for segmented water cooling in order to control the cooling rate, followed by natural cooling. While this method can prevent the sheath from wrinkling, shrinking and cracking to a certain extent under normal conditions, its inherent technical defects are further amplified under extreme conditions.

[0003] Due to the preciousness of water resources in high-altitude and cold regions and the extremely high cost of maintaining liquid water, traditional multi-stage long water tanks not only consume a huge amount of water, but their independent circulation system also consumes a large amount of heat energy to maintain the water temperature in the frigid conditions (especially the temperature of the first cooling water needs to be precisely controlled), resulting in extremely low energy efficiency and unbearable operating costs. Furthermore, during natural cooling of the cable, the high-temperature sheath will be exposed to the air for a long time. In high-altitude areas, the air is thin but the ultraviolet radiation is extremely strong, which will accelerate the photo-oxidation of the polymer material on the surface of the sheath under high temperature conditions, increasing its surface viscosity and making it easier to adsorb floating sand, salt and alkali particles or industrial dust in the air, causing surface pollution and potential reduction in insulation performance.

[0004] Therefore, a fireproof cable sheathing cooling device is proposed to address the above problems. Summary of the Invention

[0005] The purpose of this application is to provide a fireproof cable sheath cooling device.

[0006] The fire-resistant cable sheathing cooling device provided in this application adopts the following technical solution: A fireproof cable sheath cooling device includes a cooling machine and a cable. One end of the cooling machine is provided with a cooling mechanism for cooling the metal surface of the cable sheath. Inside the cooling machine, there is an air-cooling mechanism for air-cooling the cable surface sheath. Inside the cooling machine, there is a spraying mechanism for applying a protective coating to the cable surface sheath. One end of the cooling machine is provided with a curing mechanism for curing the coating. One end of the cooling machine is also provided with a conveying mechanism for conveying the cable.

[0007] Preferably, the cooling mechanism includes a fixed frame, a first drive motor, a first metal roller, a second metal roller, a connecting plate, a third metal roller, and a U-shaped groove. One end of the cooling machine is fixedly connected to the fixed frame, the first drive motor is fixedly connected inside the fixed frame, one end of the first drive motor is fixedly connected to the first metal roller, one end of the first metal roller is rotatably connected to the fixed frame, and multiple sets of second metal rollers are rotatably connected inside the fixed frame.

[0008] Preferably, the surface of the fixing frame is fixedly connected to multiple sets of connecting plates, and the bottom of each set of connecting plates is rotatably connected to two sets of third metal rollers. One end of each set of third metal rollers is rotatably connected to a cooler, and the surfaces of the first metal roller, the second metal roller, and the third metal roller are provided with U-shaped grooves.

[0009] Preferably, the inner wall of the U-shaped groove is coated with a low surface energy and high temperature resistant anti-stick coating, and the interior of the first metal roller, the second metal roller and the third metal roller are provided with cavities for the flow of coolant.

[0010] Preferably, the air-cooling mechanism includes an air-cooling chamber, fixed rods, a first connecting pipe, a flared mouth, a second connecting pipe, a fixed block, and an exhaust fan. The surface of the cooler is provided with an air-cooling chamber. Multiple sets of fixed rods are fixedly connected inside the air-cooling chamber. One end of each set of fixed rods is fixedly connected to a first connecting pipe. One end of each set of first connecting pipes is fixedly provided with a flared mouth. The other end of each set of first connecting pipes is fixedly connected to a second connecting pipe.

[0011] Preferably, a fixed block is fixedly connected to one side of the cooler, and an exhaust fan is fixedly connected inside the fixed block. The exhaust fan cooperates with the air-cooled chamber. A dry cooler is provided at one end of the second connecting pipe. Two sets of conveying rollers are rotatably connected inside the air-cooled chamber. One end of the conveying rollers is driven by a motor.

[0012] Preferably, the spraying mechanism includes a spraying chamber, connecting rods, nozzles, a fixed pipe, and a material tank. The surface of the cooler is provided with a spraying chamber. Two sets of connecting rods are fixedly connected inside the spraying chamber. One end of each set of connecting rods is fixedly connected to a nozzle. One end of the nozzle is fixedly connected to a fixed pipe. One end of the fixed pipe is fixedly connected to a material tank. The inside of the material tank is provided with an anti-UV fluorocarbon coating.

[0013] Preferably, the curing mechanism includes a fixed box, a connecting groove, a connecting block, bolt holes, bolts, a handle, and a curing lamp. The fixed box is fixedly connected to one end surface of the cooling machine. The surface of the fixed box is provided with a connecting groove. The inner wall of the connecting groove is slidably connected to a connecting block. The surface of the connecting block is provided with multiple sets of bolt holes.

[0014] Preferably, the inner wall of the bolt hole is threaded with a bolt, one end of the bolt is engaged with the fixing box, one end of the connecting block is fixedly connected with a handle, and the bottom of the connecting block is provided with multiple sets of curing lamps.

[0015] Preferably, the conveying mechanism includes a support frame, a second drive motor, a first conveying roller, and a second conveying roller. The support frame is provided on one end surface of the cooler. The second drive motor is fixedly connected inside the support frame. The first conveying roller is fixedly connected to one end of the second drive motor. The support frame is rotatably connected to one end of the first conveying roller. The second conveying roller is rotatably connected inside the support frame. The first and second conveying rollers cooperate with the cable.

[0016] The technical effects and advantages of this application are as follows: Compared with existing technologies, this fireproof cable sheath cooling device, through a cooling mechanism and an air-cooling mechanism, ensures that when the cable passes through the first, second, and third metal rollers, the metal rollers are in close contact with the cable over a large area. Through solid heat conduction, heat can be directly and quickly transferred from the outer sheath to the internal coolant, so as to quickly remove the heat from the cable surface sheath. Low-temperature air is prepared using a dry cooler and sent into the first connecting pipe through the second connecting pipe and sprayed out through the flared nozzle. Through air cooling, uniform convective heat transfer can be carried out on the entire surface of the cable, eliminating "hot spots" and achieving uniform cross-sectional temperature. This allows the cable surface sheath to be cooled through solid heat conduction and air cooling, so that the cable does not need to be exposed to the air for a long time for natural cooling or segmented water cooling during sheath cooling. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the cooling mechanism of this application; Figure 3 This is a schematic diagram of the mating structure of the first metal roller and the second metal roller in this application; Figure 4 This is a schematic diagram of the air-cooling mechanism of this application; Figure 5 This is a schematic diagram of the structure of the cooler and the air-cooled chamber in this application. Figure 6 This is a schematic diagram of the spraying mechanism of this application; Figure 7 This is a schematic diagram of the connection block and curing lamp in this application. Figure 8 This is a schematic diagram of the curing mechanism of this application; Figure 9 This is a schematic diagram of the transmission mechanism of this application.

[0018] The attached figures are labeled as follows: 1. Cooler; 2. Cooling mechanism; 201. Fixing frame; 202. First drive motor; 203. First metal roller; 204. Second metal roller; 205. Connecting plate; 206. Third metal roller; 207. U-shaped groove; 3. Cable; 4. Air-cooling mechanism; 401. Air-cooling chamber; 402. Fixing rod; 403. First connecting pipe; 404. Trumpet mouth; 405. Second connecting pipe; 406. Fixing block; 407. Exhaust fan; 5. 6. Conveying roller; 7. Spraying mechanism; 8. Spraying chamber; 9. Connecting rod; 10. Nozzle; 11. Fixing pipe; 12. Material bucket; 13. Curing mechanism; 14. Fixing box; 15. Connecting groove; 16. Connecting block; 17. Bolt hole; 18. Bolt; 19. Handle; 10. Curing lamp; 20. Conveying mechanism; 21. Support frame; 22. Second drive motor; 23. First conveying roller; 24. Second conveying roller. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] like Figures 1 to 9 The fireproof cable sheath cooling device shown includes a cooling machine 1 and a cable 3. One end of the cooling machine 1 is equipped with a cooling mechanism 2 for metal cooling of the cable 3 surface sheath, which is used for preliminary cooling of the cable 3 surface sheath. Inside the cooling machine 1 is an air cooling mechanism 4 for air cooling of the cable 3 surface sheath, which is used for deep cooling of the cable 3 surface sheath. Inside the cooling machine 1 is a spraying mechanism 6 for applying a protective coating to the cable 3 surface sheath, which can add a layer of protection to the cable 3 surface sheath to resist high altitude strong ultraviolet rays, wind and sand erosion, salt spray and extreme temperature cycles. One end of the cooling machine 1 is equipped with a curing mechanism 7 for curing the coating. One end of the cooling machine 1 is equipped with a conveying mechanism 8 for conveying the cable 3 out, which is used to convey the processed cable 3 out.

[0021] In a preferred embodiment, the cooling mechanism 2 includes a fixed frame 201, a first drive motor 202, a first metal roller 203, a second metal roller 204, a connecting plate 205, a third metal roller 206, and a U-shaped groove 207. The fixed frame 201 is fixedly connected to one end of the cooling machine 1. The first drive motor 202 is fixedly connected inside the fixed frame 201. The first metal roller 203 is fixedly connected to one end of the first drive motor 202. The fixed frame 201 is rotatably connected to one end of the first metal roller 203. Multiple sets of second metal rollers 204 are rotatably connected inside the fixed frame 201. Starting the first drive motor 202 can drive the first metal roller 203 to rotate.

[0022] In a preferred embodiment, multiple sets of connecting plates 205 are fixedly connected to the surface of the fixing frame 201. Two sets of third metal rollers 206 are rotatably connected to the bottom of each set of connecting plates 205. A cooling machine 1 is rotatably connected to one end of each set of third metal rollers 206. U-shaped grooves 207 are opened on the surfaces of the first metal roller 203, the second metal roller 204 and the third metal roller 206. A large arc transition is adopted to match the outer wall of the cable 3 surface sheath, so as to avoid the formation of a "knife edge" effect. The cable 3 surface sheath deforms during cooling.

[0023] In a preferred embodiment, the inner wall of the U-shaped groove 207 is coated with a low surface energy and high temperature resistant anti-stick coating to reduce adhesive friction. The first metal roller 203, the second metal roller 204 and the third metal roller 206 are provided with cavities for the flow of coolant. When the cable 3 passes through the first metal roller 203, the second metal roller 204 and the third metal roller 206, the metal rollers are in close contact with the cable 3 over a large area. Through solid heat conduction, heat can be directly and quickly transferred from the outer sheath to the internal coolant so as to quickly remove the heat from the surface sheath of the cable 3.

[0024] In a preferred embodiment, the air-cooling mechanism 4 includes an air-cooling chamber 401, a fixing rod 402, a first connecting pipe 403, a flared mouth 404, a second connecting pipe 405, a fixing block 406, and an exhaust fan 407. The surface of the cooler 1 is provided with an air-cooling chamber 401. Multiple sets of fixing rods 402 are fixedly connected inside the air-cooling chamber 401. One end of each set of fixing rods 402 is fixedly connected to a first connecting pipe 403. One end of each set of first connecting pipes 403 is fixedly provided with a flared mouth 404. The other end of each set of first connecting pipes 403 is fixedly connected to a second connecting pipe 405.

[0025] In a preferred embodiment, a fixing block 406 is fixedly connected to one side of the cooling machine 1. An exhaust fan 407 is fixedly connected inside the fixing block 406. The exhaust fan 407 cooperates with the air-cooled chamber 401 to extract the used low-temperature air inside the air-cooled chamber 401 so that new low-temperature air can enter. A dry cooler is provided at one end of the second connecting pipe 405. Since the device is set in a cold region, the ambient air itself is a high-quality free cold source. Low-temperature air is prepared by using the dry cooler and sent into the first connecting pipe 403 through the second connecting pipe 405 and sprayed out through the flare 404. Through air cooling, the entire surface of the cable 3 can be uniformly convectively heated, eliminating "hot spots" and achieving uniform cross-sectional temperature, so as to complete the cooling of the cable 3 surface sheath. Two sets of conveying rollers 5 are rotatably connected inside the air-cooled chamber 401. One end of the conveying rollers 5 is driven by a motor. The motor drives the conveying rollers 5 so as to convey the cooled cable 3 to the spraying chamber 601.

[0026] In a preferred embodiment, the spraying mechanism 6 includes a spraying chamber 601, connecting rods 602, nozzles 603, fixing pipes 604, and a material tank 605. The surface of the cooler 1 is provided with a spraying chamber 601. Two sets of connecting rods 602 are fixedly connected inside the spraying chamber 601. One end of each set of connecting rods 602 is fixedly connected to a nozzle 603. One end of the nozzle 603 is fixedly connected to a fixing pipe 604. One end of the fixing pipe 604 is fixedly connected to a material tank 605. The inside of the material tank 605 is provided with an anti-UV fluorocarbon coating. When the cooled cable 3 is conveyed to the spraying chamber 601, the anti-UV fluorocarbon coating in the material tank 605 is evenly sprayed onto the surface sheath of the cable 3 through the nozzles 603 and the fixing pipes 604, so that the surface sheath of the cable 3 can be protected by an additional layer of protection to resist high-altitude strong ultraviolet rays, wind and sand erosion, salt spray and extreme temperature cycles.

[0027] In a preferred embodiment, the curing mechanism 7 includes a fixed box 701, a connecting groove 702, a connecting block 703, bolt holes 704, bolts 705, a handle 706, and a curing lamp 707. The fixed box 701 is fixedly connected to one end surface of the cooling machine 1. The surface of the fixed box 701 is provided with a connecting groove 702. The inner wall of the connecting groove 702 is slidably connected to the connecting block 703. The surface of the connecting block 703 is provided with multiple sets of bolt holes 704.

[0028] In a preferred embodiment, a bolt 705 is threaded onto the inner wall of the bolt hole 704. One end of the bolt 705 mates with the fixing box 701. A handle 706 is fixedly connected to one end of the connecting block 703. Multiple sets of curing lamps 707 are provided at the bottom of the connecting block 703. The connecting block 703 is inserted into the connecting groove 702 through the handle 706. The bolt 705 is turned, and the bolt 705 passes through the bolt hole 704 and is threaded onto the fixing box 701, so that the connecting block 703 can be fixed on the fixing box 701. After the cable 3 is sprayed, it will be sent into the fixing box 701 so that it can be cured by irradiation with the curing lamps 707.

[0029] In a preferred embodiment, the conveying mechanism 8 includes a support frame 801, a second drive motor 802, a first conveying roller 803, and a second conveying roller 804. The support frame 801 is provided on one end surface of the cooling machine 1. The second drive motor 802 is fixedly connected inside the support frame 801. The first conveying roller 803 is fixedly connected to one end of the second drive motor 802. The support frame 801 is rotatably connected to one end of the first conveying roller 803. The second conveying roller 804 is rotatably connected inside the support frame 801. The first conveying roller 803 and the second conveying roller 804 cooperate with the cable 3. After the cable 3 has been cooled and coated, the second drive motor 802 is started to drive the first conveying roller 803 to rotate. The processed cable 3 can be conveyed out through the first conveying roller 803 and the second conveying roller 804 for subsequent use.

[0030] The working process of this application is as follows: The first drive motor 202 is started to drive the first metal roller 203 to rotate. The first metal roller 203 and the second metal roller 204 drive the cable 3 forward. When the cable 3 passes through the first metal roller 203, the second metal roller 204, and the third metal roller 206, the metal rollers make large-area close contact with the cable 3. Through solid-state heat conduction, heat can be directly and quickly transferred from the outer sheath to the internal coolant, so as to quickly remove the heat from the surface covering of the cable 3. The initially cooled cable 3 is then sent into the air-cooled chamber 401. Since the device is located in a high-altitude and cold region, the ambient air itself is a high-quality free cold source. Low-temperature air is prepared using a dry cooler and sent into the first connecting pipe 403 through the second connecting pipe 405 and sprayed out through the flare nozzle 404. Through air cooling, the entire surface of the cable 3 can be uniformly cooled. The heat exchange process eliminates "hot spots" and achieves uniform cross-sectional temperature, allowing for the cooling of the cable 3's surface sheath. The cooled cable 3 is then conveyed to the spraying chamber 601 via a motor-driven conveyor roller 5. Through the nozzle 603 and fixed pipe 604, an anti-ultraviolet (UV) fluorocarbon coating from the material tank 605 is evenly sprayed onto the cable 3's surface sheath, adding a layer of protection against high-altitude UV radiation, wind and sand erosion, salt spray, and extreme temperature cycles. After spraying, the cable 3 is placed in a fixed box 701 for curing by a curing lamp 707. Once the cable 3 has cooled and been coated, the second drive motor 802 is activated to rotate the first conveyor roller 803. The processed cable 3 is then conveyed out via the first and second conveyor rollers 803 and 804 for subsequent use.

Claims

1. A fireproof cable sheathing cooling device, comprising a cooler (1) and a cable (3), characterized in that: One end of the cooler (1) is provided with a cooling mechanism (2) for cooling the surface sheath of the cable (3). The cooling mechanism (2) includes a fixed frame (201), a first drive motor (202), a first metal roller (203), a second metal roller (204), a connecting plate (205), a third metal roller (206), and a U-shaped groove (207). The interior of the cooler (1) is provided with an air-cooling mechanism (4) for air-cooling the surface sheath of the cable (3). The cooling machine (1) includes an air-cooled chamber (401), a fixing rod (402), a first connecting pipe (403), a flared mouth (404), a second connecting pipe (405), a fixing block (406), and an exhaust fan (407). The interior of the cooling machine (1) is equipped with a spraying mechanism (6) for applying a protective coating to the surface of the cable (3). One end of the cooling machine (1) is equipped with a curing mechanism (7) for curing the coating. One end of the cooling machine (1) is equipped with a conveying mechanism (8) for conveying the cable (3) out.

2. The fireproof cable sheathing cooling device according to claim 1, characterized in that: One end of the cooler (1) is fixedly connected to a fixed frame (201), and a first drive motor (202) is fixedly connected inside the fixed frame (201). One end of the first drive motor (202) is fixedly connected to a first metal roller (203), and one end of the first metal roller (203) is rotatably connected to the fixed frame (201). Multiple sets of second metal rollers (204) are rotatably connected inside the fixed frame (201).

3. The fireproof cable sheathing cooling device according to claim 2, characterized in that: The surface of the fixed frame (201) is fixedly connected to multiple sets of connecting plates (205). The bottom of each set of connecting plates (205) is rotatably connected to two sets of third metal rollers (206). One end of each set of third metal rollers (206) is rotatably connected to a cooler (1). The surfaces of the first metal roller (203), the second metal roller (204) and the third metal roller (206) are provided with U-shaped grooves (207).

4. The fireproof cable sheathing cooling device according to claim 3, characterized in that: The inner wall of the U-shaped groove (207) is coated with a low surface energy and high temperature resistant anti-stick coating, and the interior of the first metal roller (203), the second metal roller (204) and the third metal roller (206) is provided with a cavity for the flow of coolant.

5. The fireproof cable sheathing cooling device according to claim 1, characterized in that: The surface of the cooler (1) is provided with an air-cooled chamber (401). Multiple sets of fixed rods (402) are fixedly connected inside the air-cooled chamber (401). One end of each set of fixed rods (402) is fixedly connected to a first connecting pipe (403). One end of each set of first connecting pipes (403) is fixedly provided with a flared mouth (404). The other end of each set of first connecting pipes (403) is fixedly connected to a second connecting pipe (405).

6. The fireproof cable sheathing cooling device according to claim 5, characterized in that: A fixed block (406) is fixedly connected to one side of the cooler (1), and an exhaust fan (407) is fixedly connected inside the fixed block (406). The exhaust fan (407) cooperates with the air-cooled chamber (401). A dry cooler is provided at one end of the second connecting pipe (405). Two sets of conveying rollers (5) are rotatably connected inside the air-cooled chamber (401). One end of the conveying rollers (5) is driven by a motor.

7. The fireproof cable sheathing cooling device according to claim 1, characterized in that: The spraying mechanism (6) includes a spraying chamber (601), a connecting rod (602), a nozzle (603), a fixed pipe (604), and a material tank (605). The surface of the cooler (1) is provided with a spraying chamber (601). Two sets of connecting rods (602) are fixedly connected inside the spraying chamber (601). A nozzle (603) is fixedly connected to one end of each of the two sets of connecting rods (602). A fixed pipe (604) is fixedly connected to one end of the nozzle (603). A material tank (605) is fixedly connected to one end of the fixed pipe (604).

8. The fireproof cable sheathing cooling device according to claim 1, characterized in that: The curing mechanism (7) includes a fixed box (701), a connecting groove (702), a connecting block (703), bolt holes (704), bolts (705), a handle (706), and a curing lamp (707). The fixed box (701) is fixedly connected to one end surface of the cooling machine (1). The surface of the fixed box (701) is provided with a connecting groove (702). The inner wall of the connecting groove (702) is slidably connected with a connecting block (703). The surface of the connecting block (703) is provided with multiple sets of bolt holes (704).

9. A fireproof cable sheathing cooling device according to claim 8, characterized in that: The inner wall of the bolt hole (704) is threaded with a bolt (705), one end of the bolt (705) is engaged with the fixed box (701), one end of the connecting block (703) is fixedly connected with a handle (706), and the bottom of the connecting block (703) is provided with multiple sets of curing lamps (707).

10. A fireproof cable sheathing cooling device according to claim 1, characterized in that: The conveying mechanism (8) includes a support frame (801), a second drive motor (802), a first conveying roller (803), and a second conveying roller (804). The support frame (801) is provided on one end surface of the cooler (1). The second drive motor (802) is fixedly connected inside the support frame (801). The first conveying roller (803) is fixedly connected to one end of the second drive motor (802). The support frame (801) is rotatably connected to one end of the first conveying roller (803). The second conveying roller (804) is rotatably connected inside the support frame (801). The first conveying roller (803) and the second conveying roller (804) cooperate with the cable (3).

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