A production system for energy-efficient cables

By adopting the combination of preheating modules, cooling modules and regulation modules in the cable production system, the problems of high energy consumption and uneven cooling in the existing cable production technology are solved, and efficient and energy-saving cable production is achieved, improving product quality and production efficiency.

CN119480264BActive Publication Date: 2025-04-29GUANGDONG SHINE CABLES
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Patent Information

Application Number
CN202411618196.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-13
Publication Date
2025-04-29
Estimated Expiration
2044-11-13

AI Technical Summary

Technical Problem

The existing cable production technology has problems such as high energy consumption, uneven cooling, inaccurate temperature control, strong equipment dependence, and waste of resources.

Method used

A production system is adopted for high-efficiency and energy-saving cables, which includes a preheating module, a cooling module and a control module. The preheating module heats the cable core evenly by heating the water solution and air, the cooling module achieves efficient cooling through spiral condenser and intelligent partition control, and the regulation module accurately adjusts the temperature and cooling rate through the temperature sensor and flow rate control unit.

Benefits of technology

It improves heat conduction efficiency, reduces the heat shrinkage effect caused by temperature differences, enhances the adhesion between the outer coating material and the cable core surface, prevents coating delamination or bubbles, and at the same time realizes a highly efficient and energy-saving cooling system, reducing overall energy consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides a production system for an energy-efficient cable. Compared with the prior art, the production system for an energy-efficient cable of the present invention includes a coating device for coating the cable core with an outer layer to obtain the cable, a preheating module for preheating the cable core coated with an outer layer, a cooling module for cooling the outer layer coated by the coating device, and a control module for controlling the operation of the preheating module and the cooling module. The linkage control of the preheating module and the cooling module of the present invention keeps the temperature of the cable core uniform and stable during the coating process, avoids the coating quality problems caused by temperature fluctuations, and ensures the quality of the finished cable product. At the same time, the cooling module is equipped with a circulation recovery system for an aqueous solution to reasonably control the use of cooling water, which not only saves water resources, but also reduces the operating cost of the cooling system, meeting environmental protection requirements.
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Description

Technical Field

[0001] The invention relates to the technical field of cable production, and in particular to a production system for high-efficiency energy-saving cables. Background Art

[0002] Cable production is a core part of modern power transmission and communication systems. With the increasing global demand for electricity and the growing demand for data communications, cable production technology is also constantly developing to improve production efficiency, quality and reliability. The basic production process of cables includes the extrusion of conductors, the coating of insulation layers, the application of sheath materials, and the final cabling and testing steps. In order to meet industrial needs, cable production is gradually developing towards high efficiency, intelligence, energy saving and environmental protection.

[0003] This experimental team has been browsing and researching a large amount of relevant records and materials on the relevant technologies of cable production for a long time. At the same time, relying on relevant resources and conducting a large number of relevant experiments, after a large number of searches, it was found that there are existing technologies such as CN106024206B, CN104464959B, CN104464959B, and CN104464959B disclosed in the prior art. For example, a cable production method disclosed in the prior art includes: (1) drawing metal, annealing after drawing, and twisting a plurality of annealed metal wires into a metal conductor; (2) wrapping an insulator with an insulating material; (1) forming an insulating layer on the outer surface of a metal conductor to obtain an insulated metal wire; and twisting a plurality of insulated metal wires into a cable unit; (2) wrapping an electromagnetic shielding material on the outside of the cable unit to form a shielding layer to form an electromagnetic shielding cable; (3) wrapping an electromagnetic shielding material on the outside of a plurality of electromagnetic shielding cables and filling a filler between two adjacent electromagnetic shielding cables to obtain a blank cable; (4) placing a metal sleeve on the outside of the blank cable and wrapping a metal belt on the outside of the metal sleeve; and (5) placing an outer sheath on the outside of the metal belt; wherein the filler includes resin, graphite and glass fiber.

[0004] The present invention is made to solve the common problems in the art, such as high energy consumption, uneven cooling, inaccurate temperature control, strong equipment dependence, waste of resources, etc. Summary of the invention

[0005] The purpose of the present invention is to propose a production system for energy-efficient cables in view of the shortcomings in the current art.

[0006] In order to overcome the shortcomings of the prior art, the present invention adopts the following technical solutions:

[0007] A production system for high-efficiency energy-saving cables, comprising a coating device for coating a cable core with an outer layer to obtain the cable, a preheating module for preheating the cable core with the outer layer coating, a cooling module for cooling the outer layer coated by the coating device, and a control module for controlling the operation of the preheating module and the cooling module.

[0008] Furthermore, the preheating module includes a water outlet box, a heater for heating the aqueous solution in the water outlet box, a water receiving box, a horizontally arranged through pipe, a regular part arranged in the through pipe for regularizing the cable core, a plurality of heating pipes laid on the inner wall of the through pipe, an inlet collecting pipe connected to one end of all the heating pipes, an outlet collecting pipe connected to the other end of all the heating pipes, an air inlet pipe connected to the outer wall of the through pipe, an air fan for driving the air outside the through pipe to flow into the through pipe, and a spiral pipe spirally coiled on the outer wall of the air inlet pipe. The heater is used to heat the temperature of the aqueous solution in the water outlet box to Tpi.

[0009] The two sides of the heating pipe are respectively arranged to penetrate from the two sides of the through pipe, and the water outlet box is provided with an outlet end and an inlet end.

[0010] Furthermore, the inlet collecting pipe and the outlet collecting pipe are closed loop structures, and a connecting port for connecting with the heating pipe is provided on the outer pipe wall of the inlet collecting pipe, and a connecting port for connecting with the heating pipe is provided on the outer pipe wall of the outlet collecting pipe.

[0011] The inlet collecting pipe is connected to the water outlet end of the water outlet box, the outlet collecting pipe is connected to the water receiving box, and the bottom of the spiral pipe is connected to the water outlet box.

[0012] Furthermore, the cooling module includes a condensing box, a cooler for cooling the aqueous solution in the condensing box, cooling units sequentially sleeved on the outside of the cable that has completed the outer coating, a connecting pipe for connecting the condensing box with each cooling unit in sequence, a liquid pump for driving the flow rate of the aqueous solution in the condensing box into each cooling unit respectively, and a connecting pipe for connecting each cooling unit with the water tank in sequence.

[0013] Furthermore, each cooling unit includes a condenser tube spirally sleeved on the outside of the cable, the condenser tube includes a water receiving end and a drainage end, and the water receiving end of each condenser tube separately receives the aqueous solution from the condensation tank, and the drainage end of the condenser tube is connected to the water receiving tank and the water outlet tank through multiple pipes, respectively, and the multiple pipes are provided with a first electric valve for controlling the connection between the condenser tube and the water receiving tank and a second electric valve for controlling the connection between the condenser tube and the water outlet tank. The flow direction of the aqueous solution discharged from the drainage end of the condenser tube is controlled by controlling the opening and closing of the first electric valve and the second electric valve.

[0014] Furthermore, the regular part includes a closed annular ring coaxially sleeved in the through pipe, a plurality of matching openings sequentially penetrating the inner ring wall and the outer ring wall of the ring, a plurality of air outlet holes distributed on the inner ring wall of the ring, a ball that can be movably limited in the matching opening, a fixing rod fixed at one end to the outer ring wall of the ring and at the other end to the inner wall of the through pipe, an air vent provided on the outer ring wall of the ring, and an air guide pipe for connecting the air vent with the intake pipe.

[0015] Furthermore, the interior of the ring is an annular channel, the air outlet is connected to the annular channel, the vent is connected to the annular pipe, the ring provides support and guidance for the ball, and the annular channel inside the ring is used for air conduction, further optimizing the efficiency of temperature preheating of the cable core.

[0016] A number of matching openings are evenly distributed on the ring wall of the ring and penetrate the inner and outer walls of the ring at the same time. A movable ball is provided in each matching opening. The ball moves in the matching opening to play a regulating role, thereby regularizing the outer wall of the cable core and ensuring the stability of the cable core moving in the through pipe. The air outlet holes are arranged on the inner ring wall of the ring and are connected with the internal annular channel. Through these air outlet holes, the hot air entering from the air inlet pipe can flow evenly from the annular channel to the surrounding of the cable core to form an air flow buffer layer.

[0017] Furthermore, the control module includes a first temperature sensor for receiving the temperature in the water tank, a second sensor for monitoring the temperature mechanical energy in the condensing box, a third temperature sensor for monitoring the temperature in the docking water tank, an infrared temperature sensor for monitoring the surface temperature of each unit area in the target area, and a flow rate control unit for controlling the water flow rate passing through each cooling unit.

[0018] The beneficial effects achieved by the present invention are:

[0019] 1. The aqueous solution of the water outlet box of the present invention flows into the collecting pipe, the heating pipe, and then flows into the water receiving box after being discharged from the collecting pipe. At the same time, the aqueous solution of the water outlet box also flows into the spiral pipe and then flows into the water receiving box, which ensures that the aqueous solution can heat the cable core evenly and continuously, thereby improving the heat conduction efficiency. The air fan drives the air through the through pipe, and the spirally coiled pipe increases the air fluidity, further improving the heat transfer efficiency. The surface temperature of the preheated cable core is closer to the coating material, thereby reducing the thermal shrinkage effect caused by the temperature difference. In this way, the adhesion between the outer coating material and the cable core surface can be enhanced, and delamination or bubbles in the coating after cooling can be prevented.

[0020] 2. The present invention adopts the hot air conduction design of the annular channel inside the ring, and the hot air flows out from the air outlet evenly to form an air flow layer around the cable core, which can effectively preheat the cable core. At the same time, the ball bearings provide support to ensure that the cable core moves smoothly in the through tube. This structural design can prevent the cable core from vibrating and deflecting during the heating process, and through the heating effect of the continuous airflow, the cable core is heated evenly, providing a good temperature foundation for the subsequent outer layer coating of the cable core.

[0021] 3. The present invention realizes an efficient and energy-saving cooling system through intelligent zoning control, dynamic flow rate and temperature adjustment based on temperature difference, and recycling and reuse of cooling water. Accurate temperature control and zoning cooling avoid excessive energy consumption, while reducing dependence on large cooling equipment and significantly reducing overall energy consumption. This design not only improves the operating efficiency of the system, but also meets the requirements of green manufacturing, achieving energy-saving and environmental protection effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0023] Figure 1 It is a partial structural schematic diagram of a preheating module of the present invention.

[0024] Figure 2 It is another partial structural schematic diagram of the preheating module of the present invention.

[0025] Figure 3 It is a partial structural schematic diagram of the regular part of the present invention.

[0026] Figure 4 It is a schematic diagram of experimental data between the target temperature, thickness and thermal conductivity of the present invention.

[0027] Explanation of the accompanying numbers: 1-entry collecting pipe; 2-heating pipe; 3-exhaust collecting pipe; 4-through pipe; 5-inlet pipe; 6-air guide pipe; 7-cable core; 8-ring; 9-fixing rod; 10-ball; 11-annular channel; 12-air outlet. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is further described in detail in combination with its embodiments below; it should be pointed out that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present case. For those skilled in the art, after reviewing the following detailed description, other systems, methods and / or features of this embodiment will become apparent. And the terms describing the positional relationship in the accompanying drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0029] Embodiment 1: Combining with Figure 1 , Attachment Figure 2 , Attachment Figure 3 and attached Figure 4 This embodiment constructs a production system for an efficient and energy-saving cable, which includes a coating device for coating a cable core with an outer layer to obtain a cable, a preheating module for preheating the cable core with the outer layer coating, a cooling module for cooling the outer layer coated by the coating device, and a control module for controlling the operation of the preheating module and the cooling module.

[0030] The preheating module includes a water outlet box, a heater for heating the aqueous solution in the water outlet box, a water receiving box, a horizontally arranged through pipe, a regular part arranged in the through pipe for regularizing the cable core, a plurality of heating pipes laid on the inner wall of the through pipe, an inlet collecting pipe connected to one end of all the heating pipes, an outlet collecting pipe connected to the other end of all the heating pipes, an air inlet pipe connected to the outer wall of the through pipe, an air fan for driving the air outside the through pipe to flow into the through pipe, and a spiral pipe spirally coiled on the outer wall of the air inlet pipe. The heater is used to heat the temperature of the aqueous solution in the water outlet tank to Tpi.

[0031] The two sides of the heating pipe are respectively arranged to penetrate from the two sides of the through pipe, and the water outlet box is provided with an outlet end and an inlet end.

[0032] The inlet collecting pipe and the outlet collecting pipe are closed loop structures, and a connecting port for connecting with the heating pipe is arranged on the outer pipe wall of the inlet collecting pipe, and a connecting port for connecting with the heating pipe is arranged on the outer pipe wall of the outlet collecting pipe.

[0033] Among them, the inlet collecting pipe is connected with the water outlet end of the water outlet box, the discharge collecting pipe is connected with the water receiving box, the bottom of the spiral tube is connected with the water outlet box, the top of the spiral tube is connected with the water receiving box, and the inlet collecting pipe, the discharge collecting pipe, the through pipe, the water outlet box and the water receiving box are connected with each other by through pipe branches.

[0034] The cooling module includes a condensing box, a cooler for cooling the aqueous solution in the condensing box, cooling units sequentially sleeved on the outside of the cable that has completed the outer coating, a connecting pipe for connecting the condensing box with each cooling unit in sequence, a liquid pump for driving the flow rate of the aqueous solution in the condensing box into each cooling unit respectively, and a connecting pipe for connecting each cooling unit with a water tank in sequence.

[0035] Each cooling unit includes a condenser tube spirally sleeved on the outside of the cable, the condenser tube includes a water receiving end and a drain end, and the drain end of each condenser tube receives the aqueous solution separately from the condensation tank, the drain end of the condenser tube is connected with the water receiving tank and the water outlet tank through multiple pipes, and the multiple pipes are provided with a first electric valve for controlling the connection between the condenser tube and the water receiving tank and a second electric valve for controlling the connection between the condenser tube and the water outlet tank, and the flow direction of the aqueous solution discharged from the drain end of the condenser tube is controlled by controlling the opening and closing of the first electric valve and the second electric valve.

[0036] The aqueous solution from the water outlet box flows into the collecting pipe, the heating pipe, and then flows into the water receiving box after being discharged from the collecting pipe. At the same time, the aqueous solution from the water outlet box also flows into the spiral pipe and then flows into the water receiving box. This ensures that the aqueous solution can heat the cable core evenly and continuously, improving the heat conduction efficiency. The air fan drives the air through the through pipe, and the spirally coiled pipe increases the air fluidity, further improving the heat transfer efficiency. The surface temperature of the preheated cable core is closer to the coating material, thereby reducing the thermal shrinkage effect caused by the temperature difference. This can enhance the adhesion between the outer coating material and the cable core surface and prevent delamination or bubbles in the coating after cooling.

[0037] Embodiment 2: Combining with Figure 1 , Attachment Figure 2 , Attachment Figure 3 and attached Figure 4 In addition to the contents of the above embodiments, the regular part also includes a closed ring-shaped ring coaxially sleeved in the through pipe, a plurality of matching openings sequentially penetrating the inner ring wall and the outer ring wall of the ring, a plurality of air outlet holes distributed on the inner ring wall of the ring, a ball that can be movably limited in the matching opening, a fixing rod with one end fixed to the outer ring wall of the ring and the other end fixed to the inner wall of the through pipe, a vent provided on the outer ring wall of the ring, and an air guide pipe for connecting the vent with the intake pipe.

[0038] The interior of the collar is an annular channel, the air outlet is connected to the annular channel, and the vent is connected to the annular through pipe.

[0039] The ring provides support and guidance for the ball, and the annular channel inside the ring is used for air conduction, further optimizing the efficiency of temperature preheating of the cable core.

[0040] A number of matching openings are evenly distributed on the ring wall of the ring and penetrate the inner and outer walls of the ring. A movable ball is arranged in each matching opening. The ball moves in the matching opening to play a regulating role, thereby regularizing the outer wall of the cable core and ensuring the stability of the cable core moving in the through pipe.

[0041] The air outlet holes are arranged on the inner ring wall of the ring and are connected with the internal annular channel. Through these air outlet holes, the hot air entering from the air inlet pipe can flow evenly from the annular channel to the surrounding of the cable core to form an air flow buffer layer. This air flow can not only transfer heat to the cable core, but also provide additional support for the cable core, further reducing vibration and friction.

[0042] The fixing rod is used to ensure that the ring maintains a fixed position in the through pipe. It is arranged on the outer ring wall of the ring and is connected with the internal annular channel. The air guide pipe connects the air vent of the ring with the air inlet pipe, so that the airflow flowing in from the air inlet pipe can enter the annular channel of the ring, further flow to the air outlet, and be evenly distributed around the cable core, ensuring that the airflow can evenly cover the surface of the cable core to form an effective heating and protective layer.

[0043] The present invention adopts the hot air conduction design of the annular channel inside the ring, and the hot air flows out from the air outlet evenly to form an air flow layer around the cable core, which can effectively preheat the cable core. At the same time, the ball bearings provide support to ensure that the cable core moves smoothly in the through tube. This structural design can prevent the cable core from vibrating and deflecting during the heating process, and through the heating effect of the continuous airflow, the cable core is heated evenly, providing a good temperature foundation for the subsequent outer layer coating of the cable core.

[0044] Embodiment 3: Combining with Figure 1 , Attachment Figure 2 , Attachment Figure 3 and attached Figure 4 In addition to the contents of the above embodiments, the control module includes a first temperature sensor for receiving the temperature in the water tank, a second sensor for monitoring the temperature mechanical energy in the condensing box, a third temperature sensor for monitoring the temperature in the docking water tank, an infrared temperature sensor for monitoring the surface temperature of each unit area in the target area, and a flow rate control unit for controlling the water flow rate passing through each cooling unit.

[0045] The target area is the cable within the preset length LG coated by the coating equipment. The target area with the length LG coming out of the coating module is divided into n unit areas in sequence. Each unit area is kc in length. A cooling unit is provided on the outside of each unit area. Starting from the corresponding end of the target area close to the coating module to the other end far from the coating module, the unit areas are numbered 1, 2, 3...n in sequence.

[0046] The flow rate control unit implements the following steps:

[0047] S101: Obtain the target temperature of each unit area:

[0048]

[0049] Where Tem i is the target temperature of the unit area with serial number i, T base is the overall base target temperature of the cable, C m is the temperature adjustment coefficient that represents the effect of cable surface coating material and thickness on cooling rate, k is the thermal conductivity of the coating material, d is the coating thickness, T base ∈[30℃, 50℃], where thermal conductivity k is an intrinsic property of the material and can be obtained from the material supplier's data sheet or physical property database, and coating thickness d is measured by an ultrasonic thickness gauge.

[0050] S102: Calculate the difference between the actual temperature and the target temperature in each unit area:

[0051] ΔT i =Tt i -Tem i ,

[0052] Tt i is the actual surface temperature of the unit area with serial number i obtained by monitoring with the infrared thermometer, ΔT i is the temperature difference of the unit area with serial number i;

[0053] S103: If ΔT i > 0, increase the flow rate of the aqueous solution into the cooling unit to Vadu to enhance the cooling rate of the unit area with sequence number i, where

[0054] And when V1>V max When the temperature of the aqueous solution in the hydrogel tank is lowered to Tlow,

[0055]

[0056] Tenv is the ambient temperature, λ is the sensitivity parameter of water temperature adjustment used to adjust the responsiveness of water temperature to the ambient temperature difference, T in is the actual water temperature of the cooling unit entering the unit area with sequence number i, C low is the water temperature adjustment coefficient used to adjust the cooling water temperature drop, α is the environmental heat transfer coefficient used to represent the heat transfer capacity between the cable coating and its surrounding environment, β is the nonlinear adjustment index used to adjust the cooling intensity, β is usually between 0.5 and 1.5, V max Vcur is the upper limit safety value of flow rate, iis the actual flow rate of the aqueous solution in the cooling unit of the unit area numbered i,

[0057] If ΔT i > 0, reduce the flow rate of the aqueous solution entering the cooling unit to Vads to slow down the cooling rate of the unit area with sequence number i, where

[0058]

[0059] If ΔT i = 0, maintain the current flow rate of the aqueous solution entering the cooling unit to maintain the cooling rate of the unit area with sequence number i;

[0060] S104: adjusting the flow rate and temperature of the aqueous solution of the cooling unit of each unit area in turn, and driving the aqueous solution of the cooling unit where the target temperature is greater than Tpr to be collected into the water tank,

[0061] The aqueous solution of the cooling unit where the unit area with the target temperature below Tpr is located is driven to be collected and flowed to the water receiving tank.

[0062] The above formula does not involve dimension calculation, C m ,λ,C low , α, β, V max The source of the parameters is mainly based on historical inspections to perform preliminary parameter value settings, and further through a large number of repeated test training data calibration experimental measurements, and repeated optimization and adjustment, until a satisfactory adjustment effect and high efficiency and stability of the production system of the present invention are achieved, the final value is obtained to ensure that the cooling system can operate stably and efficiently under different thicknesses, temperature differences and environmental conditions.

[0063] C m It is used to adjust the sensitivity to adapt to different thicknesses and environmental changes. λ is used to control the nonlinear relationship between flow rate and temperature difference to make the cooling response more adaptable. low and α are used to accurately adjust the cooling intensity of the cooling water to ensure that it can adapt to different material properties, β is used to control the nonlinear amplitude of the cooling intensity to further optimize the cooling effect, and V max is the upper limit of flow rate, ensuring the safe operation of the system under extreme conditions. These parameters are repeatedly verified and optimized through experiments to ensure the efficiency and stability of the cooling system under various operating conditions, and to ensure uniform coating and stable quality.

[0064] Among them, the Python code of the initial screening unit is implemented as follows:

[0065]

[0066]

[0067]

[0068] The steps of the control module of the present invention dynamically adjust the cooling water flow rate and the target temperature through zoning control and real-time temperature feedback, thereby accurately controlling the cooling rate and solidification rate of the coating to ensure the stability and uniformity of the coating. This zoning and feedback control strategy helps to improve the overall quality of the cable coating and the energy efficiency of the cooling system. The present invention realizes an efficient and energy-saving cooling system through intelligent zoning control, dynamic flow rate and temperature adjustment based on temperature difference, and recycling of cooling water. Accurate temperature control and zoning cooling avoid excessive energy consumption, while reducing dependence on large cooling equipment and significantly reducing overall energy consumption. This design not only improves the operating efficiency of the system, but also meets the requirements of green manufacturing, achieving energy-saving and environmental protection effects.

[0069] Although the present invention has been described above with reference to various embodiments, it should be understood that many changes and modifications may be made without departing from the scope of the present invention. That is, the methods, systems and devices discussed above are examples. Various configurations may appropriately omit, replace or add various processes or components. For example, in alternative configurations, the method may be performed in an order different from that described, and / or various components may be added, omitted and / or combined. Moreover, the features described with respect to certain configurations may be combined in various other configurations, such as different aspects and elements of the configuration may be combined in a similar manner. In addition, as technology develops, the elements therein may be updated, i.e., many elements are examples and do not limit the scope of the present disclosure or claims. And it should be understood that after reading the contents of the record of the present invention, the technician may make various changes or modifications to the present invention, and these equivalent changes and modifications also fall within the scope defined by the claims of the present invention.

Claims

1. A production system for energy-efficient cables, characterized in that: The production system of the energy-efficient cable comprises a coating device for coating the cable core with an outer layer to obtain the cable, a preheating module for preheating the cable core coated with an outer layer, a cooling module for cooling the outer layer coated by the coating device, and a control module for controlling the operation of the preheating module and the cooling module; the control module comprises an infrared temperature detector for monitoring the surface temperature of each unit area in the target area and a flow rate control unit for controlling the water flow rate passing through each cooling unit; the flow rate control unit implements the following steps: S101: obtaining the target temperature of each unit area: , where Tem i is the target temperature of the unit area with serial number i, T base is the overall base target temperature of the cable, C m is the temperature adjustment coefficient that represents the effect of cable surface coating material and thickness on cooling rate, k is the thermal conductivity of the coating material, d is the coating thickness, T base ∈[30°C, 50°C]; S102: Calculate the difference between the actual temperature and the target temperature in each unit area: ; Tt i is the actual surface temperature of the unit area with serial number i obtained by monitoring with the infrared thermometer, is the temperature difference of the unit area with sequence number i; S103: if ΔT i > 0, increase the flow rate of the aqueous solution into the cooling unit to Vadu to enhance the cooling rate of the unit area with sequence number i, where , and when V1>V max When the temperature of the aqueous solution in the hydrogel tank is lowered to Tlow, the cooler is controlled; , , Tenv is the ambient temperature, λ is the sensitivity parameter of water temperature adjustment used to adjust the responsiveness of water temperature to the ambient temperature difference, T in is the actual water temperature of the cooling unit entering the unit area with sequence number i, C low is the water temperature adjustment coefficient used to adjust the cooling water temperature drop, a is the environmental heat transfer coefficient used to represent the heat transfer capacity between the cable coating and its surrounding environment, β is the nonlinear adjustment index used to adjust the cooling intensity, V max Vcur is the upper limit safety value of flow rate, i is the actual flow rate of the aqueous solution in the cooling unit of the unit zone number i, if ΔT i > 0, reduce the flow rate of the aqueous solution entering the cooling unit to Vads to slow down the cooling rate of the unit area with sequence number i, where , , if ΔT i =0, maintain the flow rate of the current aqueous solution entering the cooling unit to maintain the cooling rate of the unit area with sequence number i; S104: adjust the flow rate of the aqueous solution and the temperature of the aqueous solution of the cooling unit of the unit area in turn, and the aqueous solution of the cooling unit where the unit area with a target temperature greater than Tpr is located is driven to be collected into the water tank, and the aqueous solution of the cooling unit where the unit area with a target temperature below Tpr is driven to be collected and flowed to the water receiving tank.

2. The production system according to claim 1, characterized in that The preheating module includes a water outlet box, a heater for heating the aqueous solution in the water outlet box, a water receiving box, a horizontally arranged through pipe, a regular part arranged in the through pipe for regularizing the cable core, a plurality of heating pipes laid on the inner wall of the through pipe, an inlet collection pipe connected to one end of all the heating pipes, an outlet collection pipe connected to the other end of all the heating pipes, an air intake pipe connected to the outer wall of the through pipe, an air fan for driving the air outside the through pipe to flow into the through pipe, and a spiral pipe spirally coiled on the outer wall of the air intake pipe. The heater is used to heat the temperature of the aqueous solution in the water outlet box to Tpi. The two sides of the heating pipe are respectively arranged to penetrate from the two sides of the through pipe, and the water outlet box is provided with an outlet end and an inlet end.

3. The production system according to claim 2, characterized in that The inlet and outlet pipes are closed loop structures, and the outer pipe wall of the inlet and outlet pipes is provided with a connecting port for connecting with the heating pipe, and the outer pipe wall of the outlet and outlet pipes is provided with a connecting port for connecting with the heating pipe. The inlet collecting pipe is connected to the water outlet end of the water outlet box, the outlet collecting pipe is connected to the water receiving box, and the bottom of the spiral pipe is connected to the water outlet box.

4. The production system according to claim 3, characterized in that: The cooling module includes a condensing box, a cooler for cooling the aqueous solution in the condensing box, cooling units sequentially sleeved on the outside of the cable that has completed the outer coating, a connecting pipe for connecting the condensing box with each cooling unit in sequence, a liquid pump for driving the flow rate of the aqueous solution in the condensing box into each cooling unit respectively, and a connecting pipe for connecting each cooling unit with a water tank in sequence.

5. The production system according to claim 4, characterized in that Each cooling unit includes a condenser tube spirally sleeved on the outside of the cable, the condenser tube includes a water receiving end and a drainage end, and the water receiving end of each condenser tube receives the aqueous solution from the condensation tank separately, and the drainage end of the condenser tube is connected with the water receiving tank and the water outlet tank respectively through multiple pipes, and the multiple pipes are provided with a first electric valve for controlling the connection between the condenser tube and the water receiving tank and a second electric valve for controlling the connection between the condenser tube and the water outlet tank. The flow direction of the aqueous solution discharged from the drainage end of the condenser tube is controlled by controlling the opening and closing of the first electric valve and the second electric valve.

6. The production system according to claim 5, characterized in that The regular part includes a closed ring-shaped ring coaxially sleeved in the through pipe, a plurality of matching openings sequentially penetrating the inner ring wall and the outer ring wall of the ring, a plurality of air outlet holes distributed on the inner ring wall of the ring, balls movably limited in the matching openings, a fixing rod with one end fixed to the outer ring wall of the ring and the other end fixed to the inner wall of the through pipe, an air vent provided on the outer ring wall of the ring, and an air guide pipe for connecting the air vent with the air intake pipe.

7. The production system according to claim 6, characterized in that The interior of the collar is an annular channel, the air outlet is connected to the annular channel, the vent is connected to the annular through pipe, the collar provides support and guidance for the ball, the annular channel inside the collar is used for air conduction, and the efficiency of temperature preheating of the cable core is further optimized; A number of matching openings are evenly distributed on the ring wall of the ring and penetrate the inner and outer walls of the ring at the same time. A movable ball is provided in each matching opening. The ball moves in the matching opening to play a regulating role, thereby regularizing the outer wall of the cable core and ensuring the stability of the cable core moving in the through pipe. The air outlet holes are arranged on the inner ring wall of the ring and are connected with the internal annular channel. Through these air outlet holes, the hot air entering from the air inlet pipe can flow evenly from the annular channel to the surrounding of the cable core to form an air flow buffer layer.

8. The production system according to claim 7, characterized in that The control module also includes a first temperature sensor for receiving the temperature in the water tank, a second sensor for monitoring the temperature and mechanical energy in the condensing tank, and a third temperature sensor for monitoring the temperature in the docking water tank.

Citation Information

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