A production process for flame-retardant and fire-resistant power cable and its steam cross-linking room

Abstract

The present invention discloses a production process of flame-retardant and fire-resistant power cable and a steam cross-linking room thereof, comprising a base and a cross-linking room body, the upper side wall of the base is slidably connected with a moving block, the upper side wall of the base is provided with a guide groove matching the moving block, the left inner wall of the guide groove is fixedly connected with a motor 1, the driving end of the motor 1 is fixedly connected with a threaded rod, and the moving block is threadedly connected to the outer wall of the threaded rod. The present invention enables the cable to be rolled up and transported in time through the cooperation of the moving block, the screw rod, the clamping mechanism and the motor 2, thereby improving the production efficiency, and the use of multiple nozzles enables the steam to be evenly distributed in the cross-linking room body, and the coordinated use of the temperature detector and the pressure detector can well control the temperature and pressure in the cross-linking room body, thereby ensuring the quality of cable processing.

Description

Technical Field

[0001] The invention relates to the technical field of cable production, and in particular to a production process for a flame-retardant and fire-resistant power cable and a steam cross-linking room thereof. Background Art

[0002] With the development of the economy and society, the use of cables and wires has increased year by year. Cables and wires refer to materials used for power, electrical and related transmission purposes. Cables and wires are wire products used to transmit electrical (magnetic) energy, information and realize electromagnetic energy conversion. They have been widely used in various fields and are an indispensable and important transmission medium for industry and civil use. As the main carrier of power transmission, cables and wires are widely used in electrical equipment, lighting lines, household appliances, etc. The quality of cables and wires directly affects the quality of the project and the safety of life and property of consumers. They mainly include overhead bare wires and power cables used in power systems, telephone cables, TV cables, electronic cables, optical fiber cables, etc. used in information transmission systems, and data cables and instrument cables used in mechanical instrument systems. For cable manufacturers, as the application scenarios of wires and cables gradually increase, the requirements for the performance of wires and cables are also getting higher and higher. Due to the advantages of good heat resistance, high strength, and good creep resistance, silane cross-linked cables are widely used in the insulation layer of power cables. After the silane cross-linking material is extruded from the extruder, the molecular structure is still a linear structure. The commonly used cross-linking method is to boil the cross-linked wire core in 100°C water for more than 24 hours to form a three-dimensional mesh wire structure to achieve the purpose of cross-linking. However, this method takes a long time, has low production capacity, large energy waste, and the insulation core is easy to get water in, resulting in the finished product high-voltage test not meeting the standards, and the insulation layer is broken down. Steam cross-linking steam room is a high-efficiency and high-safety equipment, which is widely used by cable manufacturers.

[0003] The existing cable production process lacks devices for timely winding and transporting cables, which affects production efficiency. The existing steam cross-linking steam room has the problem of time-consuming and labor-intensive manual loading. During the cross-linking process of the entire cable reel, the water vapor is unevenly distributed, resulting in uneven heating of the cable, which makes the wire core prone to uneven heating. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the background technology and to propose a production process for flame retardant and fire resistant power cables and a steam cross-linking room thereof.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A production process for flame-retardant and fire-resistant power cable and a steam cross-linking room thereof, comprising a base and a cross-linking room body, the upper side wall of the base being slidably connected with a moving block, the upper side wall of the base being provided with a guide groove matching the moving block, the left inner wall of the guide groove being fixedly connected with a motor 1, the driving end of the motor 1 being fixedly connected with a threaded rod, the moving block being threadedly connected to the outer wall of the threaded rod, the front side wall of the moving block being provided with a clamping mechanism, the upper side wall of the moving block being provided with a mounting plate, the upper side wall of the mounting plate being symmetrically fixedly connected with a vertical plate, the rear side wall of the vertical plate located at the rear side being fixedly connected with a motor 2, the driving end of the motor 2 being fixedly connected with a rotating shaft rotatably connected with the front vertical plate, the outer wall fixed sleeve of the rotating shaft being provided with a winding roller, the outer wall of the winding roller being wound with a cable, the cross-linking room The main body is arranged on the upper side wall of the base, a door body is installed on the left side wall of the cross-linking room main body, a steam generator located on the right side of the cross-linking room main body is fixedly connected to the upper side wall of the base, a pipe 1 is fixedly connected to the output end of the steam generator, an arc-shaped pipe is fixedly connected to the end of the pipe 1, a pipe 2 extending to the inside of the cross-linking room main body is fixedly connected to the end of the arc-shaped pipe, a support plate sleeved on the outer wall of the pipe 2 is symmetrically fixedly connected to the inner top wall of the cross-linking room main body, a plurality of nozzles are installed on the outer wall of the pipe 2 located inside the cross-linking room main body, a temperature detector extending to the inside of the cross-linking room main body is fixedly connected to the upper top wall of the cross-linking room main body, a pressure detector extending to the inside of the cross-linking room main body is fixedly connected to the upper top wall of the cross-linking room main body, and a distribution box is fixedly connected to the upper side wall at the right end of the base.

[0007] Preferably, the clamping mechanism includes a fixed plate symmetrically fixedly connected to the front side wall of the moving block, the two fixed plates are connected to a screw rod for common rotation, the outer wall of the screw rod is symmetrically threadedly connected to the moving plate, the top ends of the two moving plates are fixedly connected to a clamping plate, the threads on the outer walls at both ends of the screw rod are arranged in opposite directions, the outer walls of the moving plates on the same side are fixedly sleeved with a sliding sleeve slidably connected to the front side wall of the moving block, the front side wall of the moving block is symmetrically provided with sliding grooves matching the two sliding sleeves, the left end of the screw rod is fixedly connected to a knob, and a locking mechanism is arranged on the upper side wall of the left end of the moving block.

[0008] Preferably, the locking mechanism includes a bracket fixedly connected to the upper side wall of the moving block and arranged in an L shape, the upper side wall of the bracket is slidably inserted with a push rod that contacts the outer wall of the knob, the top of the push rod is fixedly connected with a baffle plate, and a spring slidably mounted on the outer wall of the push rod is fixedly connected between the baffle plate and the bracket.

[0009] Preferably, a plurality of locking holes matching the stop rod are evenly arranged on the arc outer wall of the knob.

[0010] Preferably, the cable consists of three conductors, and the three conductors are wrapped in sequence with an inorganic composite insulation layer, an inorganic heat-insulating fireproof filler, a heat-insulating layer, a waterproof layer and an inorganic fireproof sheath.

[0011] Preferably, the distribution box, motor one, motor two, steam generator, temperature detector and pressure detector are all electrically connected.

[0012] Preferably, the right outer wall of the cross-linking room body is fixedly connected with a horizontal plate located below the arc-shaped tube, the upper side wall of the horizontal plate is fixedly connected with a collection box connected with the arc-shaped tube, the inner wall of the arc-shaped tube is provided with a water-absorbing material, and the collection box is made of transparent glass;

[0013] Preferably, the inner wall of the cross-linked room body is provided with a heat-insulating layer.

[0014] A production process for a flame retardant and fire resistant power cable comprises the following steps:

[0015] S1: First, when the cable is produced, it is composed of three basic conductors, and then the outer wall is wrapped with an inorganic composite insulation layer, an inorganic heat-insulating fireproof filler, a heat-insulating layer, a waterproof layer and an inorganic fireproof sleeve in sequence. After the production is completed, one end of the cable is wound on the outer wall of the winding roller, and then the motor 2 is started. The driving end of the motor 2 drives the rotating shaft and the winding roller to rotate, thereby completing the winding of the cable, so that the cable is wound together neatly and in time, so as to facilitate the subsequent processing of the cable;

[0016] S2: Secondly, the knob is rotated clockwise to drive the threaded rod to rotate clockwise, thereby driving the movable plate and the clamping plate to move in the direction close to the mounting plate, thereby completing the fixation of the mounting plate and the cable. The setting of the locking mechanism enables the lever to control the rotation state of the knob to ensure the stability of the mounting plate and the cable. Then, the motor 1 is started, and the driving end of the motor 1 drives the movable block and the cable to move into the interior of the cross-linking room body, thereby realizing the handling of the cable, avoiding the large amount of labor in manual handling, which affects the work efficiency, and improves the convenience and stability of cable handling;

[0017] S3: Finally, after the cable is transported into the cross-linking room, start the steam generator to transport steam into the cross-linking room through pipes 1 and 2 to complete the heating of the cable and cause cross-linking inside it. The coordinated use of temperature detectors and pressure detectors can well control the temperature and pressure inside the cross-linking room, thereby ensuring the quality of cable processing.

[0018] Compared with the existing technology, the production process of the flame retardant and fire resistant power cable and the steam cross-linking room thereof have the following advantages:

[0019] Motor 2, a rotating shaft, a winding roller and a cable are set. When the cable is produced, it is composed of three basic wires, and then the outer wall is wrapped with an inorganic composite insulation layer, an inorganic heat-insulating fireproof filler, a heat-insulating layer, a waterproof layer and an inorganic fireproof sleeve in sequence. After the production is completed, one end of the cable is wound on the outer wall of the winding roller, and then motor 2 is started. The driving end of motor 2 drives the rotating shaft and the winding roller to rotate, thereby completing the winding of the cable, so that the cable is wound together neatly and in time, so as to facilitate the subsequent processing of the cable;

[0020] A motor 1, a threaded rod, a moving block, a clamping mechanism and a locking mechanism are provided. The knob is turned clockwise to drive the threaded rod to rotate clockwise, thereby driving the moving plate and the clamping plate to move in the direction close to the mounting plate, thereby completing the fixation of the mounting plate and the cable. The locking mechanism is provided so that the lever can control the rotation state of the knob to ensure the stability of the mounting plate and the cable. Then the motor 1 is started, and the driving end of the motor 1 drives the moving block and the cable to move into the interior of the cross-linking room body, thereby realizing the handling of the cable, avoiding the large amount of labor in manual handling and affecting the work efficiency, and improving the convenience and stability of cable handling;

[0021] A cross-linking room body, a steam generator, a pipe 1, a pipe 2, a pressure detector and a temperature detector are set. After the cable is transported into the cross-linking room body, the steam generator is started to transport steam into the cross-linking room body through pipes 1 and 2 to complete the heating of the cable and cross-linking inside the cable. The temperature detector and the pressure detector are used in combination to well control the temperature and pressure inside the cross-linking room body, thereby ensuring the quality of cable processing;

[0022] In summary, the present invention enables the cable to be rolled up and transported in time through the cooperation of the moving block, the screw rod, the clamping mechanism and the motor 2, thereby improving the production efficiency. The use of multiple nozzles enables the steam to be evenly distributed in the cross-linking chamber body. The coordinated use of the temperature detector and the pressure detector can well control the temperature and pressure in the cross-linking chamber body, thereby ensuring the quality of cable processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of a production process for a flame-retardant and fire-resistant power cable and a steam cross-linking room thereof proposed by the present invention;

[0024] Figure 2 A production process of a flame-retardant and fire-resistant power cable proposed by the present invention and a side view of the installation plate, the vertical plate, the second motor and the cable in the steam cross-linking room;

[0025] Figure 3 for Figure 1 The enlarged view of point A in the middle;

[0026] Figure 4 A production process of a flame-retardant and fire-resistant power cable proposed by the present invention and a cross-sectional view of the cable in a steam cross-linking room;

[0027] Figure 5 A production process of a flame-retardant and fire-resistant power cable proposed by the present invention and a top view of the connection between the base, guide groove, motor 1 and threaded rod in a steam cross-linking room;

[0028] Figure 6 A three-dimensional diagram of the production process of a flame-retardant and fire-resistant power cable and the connection between the knob and the lock hole in the steam cross-linking room proposed by the present invention;

[0029] Figure 7 The invention discloses a production process of a flame-retardant and fire-resistant power cable and a cross-sectional view of a cross-linking chamber body in the steam cross-linking chamber.

[0030] In the figure: 1 base, 2 moving block, 3 guide groove, 4 motor 1, 5 threaded rod, 6 fixed plate, 7 screw rod, 8 moving plate, 9 splint, 10 sliding sleeve, 11 sliding groove 1, 12 knob, 13 keyhole, 14 bracket, 15 push rod, 16 baffle, 17 spring, 18 mounting plate, 19 vertical plate, 20 motor 2, 21 rotating shaft, 22 cable, 23 inorganic composite insulation layer, 24 inorganic heat insulation and fireproof filler, 25 insulation layer, 26 waterproof layer, 27 inorganic fireproof sleeve, 28 cross-linking room body, 29 door body, 30 steam generator, 31 pipeline 1, 32 arc pipe, 33 pipeline 2, 34 support plate, 35 nozzle, 36 temperature detector, 37 pressure detector, 38 horizontal plate, 39 collection box, 40 distribution box. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] Reference Figure 1-7, a production process of flame-retardant and fire-resistant power cable and its steam cross-linking room, including a base 1 and a cross-linking room body 28, a moving block 2 is slidably connected to the upper side wall of the base 1, a guide groove 3 matching the moving block 2 is opened on the upper side wall of the base 1, a motor 4 is fixedly connected to the left inner wall of the guide groove 3, a threaded rod 5 is fixedly connected to the driving end of the motor 4, the moving block 2 is threadedly connected to the outer wall of the threaded rod 5, a clamping mechanism is arranged on the front side wall of the moving block 2, the clamping mechanism includes a fixed plate 6 symmetrically fixedly connected to the front side wall of the moving block 2, two fixed plates 6 are connected to a screw rod 7 for rotation together, a moving plate 8 is symmetrically threadedly connected to the outer wall of the screw rod 7, the tops of the two moving plates 8 are fixedly connected to clamping plates 9, the threads on the outer walls at both ends of the screw rod 7 are arranged in opposite directions, and the outer walls of the moving plates 8 on the same side are fixedly sleeved with a sliding sleeve 10 slidably connected to the front side wall of the moving block 2;

[0033] The front side wall of the moving block 2 is symmetrically provided with a slide groove 11 matching the two sliding sleeves 10, the left end of the screw rod 7 is fixedly connected with a knob 12, and a locking mechanism is arranged on the upper side wall of the left end of the moving block 2. The locking mechanism includes a bracket 14 fixedly connected to the upper side wall of the moving block 2 and arranged in an L shape. The upper side wall of the bracket 14 is slidably inserted with a push rod 15 that contacts the outer wall of the knob 12, and the top of the push rod 15 is fixedly connected with a baffle 16. A spring 17 slidingly sleeved on the outer wall of the push rod 15 is fixedly connected between the baffle 16 and the bracket 14. A plurality of lock holes 13 matching the push rod 15 are evenly arranged on the arc outer wall of the knob 12. A mounting plate 18 is provided on the upper side wall of the moving block 2, and a vertical plate 19 is symmetrically fixedly connected to the upper side wall of the mounting plate 18. A motor 20 is fixedly connected to the rear side wall of the vertical plate 19 located at the rear side, and a driving end of the motor 20 is fixedly connected with a rotating shaft 21 rotatably connected to the front vertical plate 19.

[0034] The outer wall of the rotating shaft 21 is fixedly sleeved with a winding roller, and the outer wall of the winding roller is wound with a cable 22, and the cable 22 is composed of three wires, and the outside of the three wires is wrapped with an inorganic composite insulation layer 23, an inorganic heat-insulating fireproof filler 24, a heat-insulating layer 25, a waterproof layer 26 and an inorganic fireproof sleeve 27 in sequence, a cross-linking room body 28 is arranged on the upper side wall of the base 1, and the inner wall of the cross-linking room body 28 is provided with a thermal insulation layer, and a door body 29 is installed on the left side wall of the cross-linking room body 28, and the upper side wall of the base 1 is fixedly connected with a steam generator 30 located on the right side of the cross-linking room body 28, and the output end of the steam generator 30 is fixedly connected with a pipe 31, and the end of the pipe 31 is fixedly connected with an arc tube 32, and the right outer wall of the cross-linking room body 28 is fixedly connected with a horizontal plate 38 located below the arc tube 32, and the upper side wall of the horizontal plate 38 is fixedly connected with a collecting box 39 connected to the arc tube 32, and the inner wall of the arc tube 32 is provided with a water-absorbing material;

[0035] The collecting box 39 is made of transparent glass. The collection box 39, the water-absorbing material and the arc tube 32 are used together to improve the dryness of the steam. The end of the arc tube 32 is fixedly connected with a second pipe 33 extending to the inside of the cross-linking room body 28. The inner top wall of the cross-linking room body 28 is symmetrically fixedly connected with a support plate 34 sleeved on the outer wall of the second pipe 33. A plurality of nozzles 35 are installed on the outer wall of the second pipe 33 located inside the cross-linking room body 28. The upper top wall of the cross-linking room body 28 is fixedly connected with a temperature detector 36 extending to the inside of the cross-linking room body 28. The upper top wall of the cross-linking room body 28 is fixedly connected with a pressure detector 37 extending to the inside of the cross-linking room body 28. The upper side wall of the right end of the base 1 is fixedly connected with a distribution box 40.

[0036] The distribution box 40, the motor 1 4, the motor 20, the steam generator 30, the temperature detector 36 and the pressure detector 37 are all electrically connected. When the cable 22 is produced, it is composed of three basic wires, and then the inorganic composite insulation layer 23, the inorganic heat insulation and fireproof filler 24, the heat insulation layer 25, the waterproof layer 26 and the inorganic fireproof sleeve 27 are wrapped in sequence on its outer wall. After the production is completed, one end of the cable 22 is wound on the outer wall of the winding roller, and then the motor 20 is started. The driving end of the motor 20 drives the rotating shaft 21 and the winding roller to rotate, thereby completing the winding of the cable 22, so that the cable 22 is timely The cable 22 is neatly rolled together, so as to facilitate the subsequent processing of the cable 22. When the cable 22 is produced, it is composed of three basic wires, and then the inorganic composite insulation layer 23, the inorganic heat insulation and fireproof filler 24, the heat insulation layer 25, the waterproof layer 26 and the inorganic fireproof sleeve 27 are wrapped in sequence on the outer wall. After the production is completed, one end of the cable 22 is wound on the outer wall of the winding roller, and then the motor 20 is started. The driving end of the motor 20 drives the rotating shaft 21 and the winding roller to rotate, thereby completing the winding of the cable 22, so that the cable 22 is neatly rolled together in time, so as to facilitate the subsequent processing of the cable 22;

[0037] After the cable 22 is transported into the cross-linking room body 28, the steam generator 30 is started to transport steam through the pipe 1 31 and the pipe 2 33 into the cross-linking room body 28, thereby heating the cable 22 and causing cross-linking inside the cable 22. The temperature detector 36 and the pressure detector 37 are used in combination to control the temperature and pressure inside the cross-linking room body 28, thereby ensuring the processing quality of the cable 22.

[0038] A production process for a flame retardant and fire resistant power cable comprises the following steps:

[0039] S1: First, when the cable 22 is produced, it is composed of three basic conductors, and then the outer wall is wrapped with an inorganic composite insulation layer 23, an inorganic heat-insulating fireproof filler 24, a heat-insulating layer 25, a waterproof layer 26 and an inorganic fireproof sleeve 27 in sequence. After the production is completed, one end of the cable 22 is wound on the outer wall of the winding roller, and then the motor 20 is started. The driving end of the motor 20 drives the rotating shaft 21 and the winding roller to rotate, thereby completing the winding of the cable 22, so that the cable 22 is neatly wound together in time, so as to facilitate the subsequent processing of the cable 22;

[0040] S2: Secondly, the knob 12 is rotated clockwise to drive the threaded rod 5 to rotate clockwise, thereby driving the movable plate 8 and the clamping plate 9 to move in the direction close to the mounting plate 18, thereby completing the fixation of the mounting plate 18 and the cable 22. The setting of the locking mechanism enables the lever 15 to control the rotation state of the knob 12 to ensure the stability of the mounting plate 18 and the cable 22. Then, the motor 4 is started, and the driving end of the motor 4 drives the movable block 2 and the cable 22 to move inside the cross-linking room body 28, thereby realizing the transportation of the cable 22, avoiding the large amount of labor in manual transportation and affecting the work efficiency, and improving the convenience and stability of the transportation of the cable 22;

[0041] S3: Finally, after the cable 22 is transported to the cross-linking room body 28, the steam generator 30 is started to transport steam through the pipe 1 31 and the pipe 2 33 to the cross-linking room body 28, so as to complete the heating of the cable 22 and cause cross-linking to occur inside the cable 22. The temperature detector 36 and the pressure detector 37 are used in combination to well control the temperature and pressure in the cross-linking room body 28, thereby ensuring the processing quality of the cable 22.

[0042] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0043] The operating principle of the present invention is now described as follows:

[0044] When in use, when the cable 22 is produced, it is composed of three basic conductors, and then the inorganic composite insulation layer 23, inorganic heat insulation and fireproof filler 24, heat insulation layer 25, waterproof layer 26 and inorganic fireproof sleeve 27 are wrapped in sequence on its outer wall. After the production is completed, one end of the cable 22 is wound on the outer wall of the winding roller, and then the motor 20 is started. The driving end of the motor 20 drives the rotating shaft 21 and the winding roller to rotate, thereby completing the winding of the cable 22, so that the cable 22 is neatly wound together in time, so as to facilitate the subsequent loading of the cable 22. During the production of the cable 22, it is composed of three basic conductors, and then the outer wall is wrapped with an inorganic composite insulation layer 23, an inorganic heat-insulating fireproof filler 24, a heat-insulating layer 25, a waterproof layer 26 and an inorganic fireproof sleeve 27 in sequence. After the production is completed, one end of the cable 22 is wound around the outer wall of the winding roller, and then the motor 20 is started. The driving end of the motor 20 drives the rotating shaft 21 and the winding roller to rotate, thereby completing the winding of the cable 22, so that the cable 22 is neatly wound together in time, thereby facilitating the subsequent processing of the cable 22;

[0045] After the cable 22 is transported into the cross-linking room body 28, the steam generator 30 is started to transport steam through the pipe 1 31 and the pipe 2 33 into the cross-linking room body 28, thereby heating the cable 22 and causing cross-linking inside the cable 22. The temperature detector 36 and the pressure detector 37 are used in combination to control the temperature and pressure inside the cross-linking room body 28, thereby ensuring the processing quality of the cable 22.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A production process for a flame retardant and fire resistant power cable, comprising a base and a cross-linking housing body, characterized in that: The upper side wall of the base is slidably connected with a moving block, the upper side wall of the base is provided with a guide groove matching the moving block, the left inner wall of the guide groove is fixedly connected with a motor 1, the driving end of the motor 1 is fixedly connected with a threaded rod, the moving block is threadedly connected to the outer wall of the threaded rod, the front side wall of the moving block is provided with a clamping mechanism, the upper side wall of the moving block is provided with a mounting plate, the upper side wall of the mounting plate is symmetrically fixedly connected with a vertical plate, the rear side wall of the vertical plate located on the rear side is fixedly connected with a motor 2, the driving end of the motor 2 is fixedly connected with a rotating shaft, the rotating shaft is rotatably connected with the vertical plate on the front side, the outer wall fixed sleeve of the rotating shaft is provided with a winding roller, the outer wall of the winding roller is wound with a cable, the cross-linking room body is arranged on the upper side wall of the base, and the left side of the cross-linking room body A door body is installed on the side wall, a steam generator located on the right side of the cross-linking room body is fixedly connected to the upper side wall of the base, a pipe 1 is fixedly connected to the output end of the steam generator, an arc-shaped pipe is fixedly connected to the end of the pipe 1, a pipe 2 extending to the inside of the cross-linking room body is fixedly connected to the end of the arc-shaped pipe, a support plate sleeved on the outer wall of the pipe 2 is symmetrically fixedly connected to the inner top wall of the cross-linking room body, a plurality of nozzles are installed on the outer wall of the pipe 2 located inside the cross-linking room body, a temperature detector extending to the inside of the cross-linking room body is fixedly connected to the upper top wall of the cross-linking room body, a pressure detector extending to the inside of the cross-linking room body is fixedly connected to the upper side wall of the right end of the base, and a distribution box is fixedly connected to the upper side wall; The clamping mechanism includes a fixed plate symmetrically fixedly connected to the front side wall of the moving block, the two fixed plates are connected to a screw rod for common rotation, the outer wall of the screw rod is symmetrically threadedly connected to the moving plate, the tops of the two moving plates are fixedly connected to clamping plates, the threads on the outer walls at both ends of the screw rod are arranged in opposite directions, the outer walls of the moving plates on the same side are fixedly sleeved with sliding sleeves slidably connected to the front side wall of the moving block, the front side wall of the moving block is symmetrically provided with sliding grooves matching the two sliding sleeves, the left end of the screw rod is fixedly connected to a knob, and a locking mechanism is arranged on the upper side wall of the left end of the moving block; The locking mechanism includes a bracket fixedly connected to the upper side wall of the moving block and arranged in an L shape. The upper side wall of the bracket is slidably inserted with a push rod that contacts the outer wall of the knob. The top of the push rod is fixedly connected to a baffle. A spring slidingly sleeved on the outer wall of the push rod is fixedly connected between the baffle and the bracket.

2. The production process of a flame retardant and fire resistant power cable according to claim 1, characterized in that: A plurality of lock holes matching the stopper rods are evenly arranged on the arc outer wall of the knob.

3. The production process of a flame retardant and fire resistant power cable according to claim 1, characterized in that: The cable consists of three conductors, which are wrapped with an inorganic composite insulation layer, an inorganic heat-insulating fire-proof filler, a heat-insulating layer, a waterproof layer and an inorganic fire-proof sheath in sequence.

4. The production process of a flame retardant and fire resistant power cable according to claim 1, characterized in that: The distribution box, motor 1, motor 2, steam generator, temperature detector and pressure detector are all electrically connected.

5. The production process of a flame retardant and fire resistant power cable according to claim 1, characterized in that: The right outer wall of the cross-linking room body is fixedly connected with a horizontal plate located below the arc tube, the upper side wall of the horizontal plate is fixedly connected with a collection box connected with the arc tube, the inner wall of the arc tube is provided with water-absorbing material, and the collection box is made of transparent glass.

6. The production process of a flame retardant and fire resistant power cable according to claim 1, characterized in that: The inner wall of the cross-linking room body is provided with a heat-insulating layer.

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