A crosslinked polyethylene insulated cable core impregnation anti-oxidation treatment device

Abstract

The application relates to the technical field of wire core impregnation anti-oxidation, in particular to a cross-linked polyethylene insulated cable wire core impregnation anti-oxidation treatment device, which comprises an impregnation tank and filter bubble removal equipment which is arranged at one side of the impregnation tank, passivation liquid is arranged in the impregnation tank, guide roller parts are arranged at both ends of the impregnation tank, four groups of air blowing parts are arranged at the inner wall of one side of the impregnation tank close to a twisted copper wire core discharging end, two groups of guide assemblies are symmetrically arranged in the impregnation tank, and an accelerating impregnation assembly, a liquid supplementing pipe and a bubble removal assembly are sequentially and spacedly arranged between the two groups of guide assemblies from left to right. The bubble removal assembly and the accelerating impregnation assembly can quickly remove the bubbles attached to the surface of the copper wire core and the strand joint, reduce the possibility of secondary attachment, improve the impregnation effect, improve the integrity of the generated passivation film, continuously flush and impregnate the twisted copper wire core, and improve the impregnation anti-oxidation processing efficiency of the twisted copper wire core.

Description

Technical Field

[0001] This invention relates to the field of core impregnation and anti-oxidation technology, and in particular to a device for impregnating and anti-oxidation treatment of cross-linked polyethylene insulated cable cores. Background Technology

[0002] Cross-linked polyethylene (XLPE) insulated cables are power cables with XLPE as the insulation layer. The conductor is the core of the cable and is generally made of multiple strands of copper conductors twisted together to transmit electrical energy. However, in XLPE power cables, after the stranded copper conductors are drawn and twisted, during the storage period awaiting the extrusion process, capillary adsorption effects will form between the strands. This easily traps moisture and trace amounts of oxygen in the environment, causing localized oxidation on the surface of the copper conductors and generating copper oxide debris and free copper ions. In the subsequent high-temperature extrusion and cross-linking processes of XLPE, these copper oxide products and copper ions easily catalyze the thermo-oxidative aging reaction of the XLPE insulation, shortening the actual service life of the XLPE insulated cable.

[0003] Chinese Patent CN223884208U discloses an electromagnetic wire impregnation device, including an impregnation tank. A support frame is fixedly connected to one side of the impregnation tank, and an unwinding roller is rotatably connected to the support frame. An ear plate is fixedly connected to the other side of the impregnation tank, and a motor is mounted on the mounting frame on which the ear plate is fixed. A winding roller is fixedly connected to the output shaft of the motor. L-shaped mounting plates are fixedly connected to the inner walls on both sides of the impregnation tank, and staggered guide structures are mounted on the two L-shaped mounting plates. The guide structures include wheels.

[0004] The above-mentioned device achieves the purpose of improving the impregnation effect by extending the impregnation time through S-shaped folding conveying. However, for the stranded copper core of cross-linked polyethylene insulated cable, due to the rigidity of the tightly compressed stranded conductor, small-radius S-shaped folding conveying is prone to problems such as broken copper strands and conductor deformation defects. Moreover, simply extending the impregnation time cannot remove the air bubbles attached to the outer surface of the stranded copper core. The air bubbles will block the contact between the passivation film and the stranded copper core, and a complete passivation film cannot be formed, resulting in poor anti-oxidation effect. Summary of the Invention

[0005] This invention is a cross-linked polyethylene insulated cable core impregnation and anti-oxidation treatment device to solve the problems of copper wire breakage and conductor deformation defects and the inability to form a complete passivation film due to air bubble obstruction in the existing technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a cross-linked polyethylene insulated cable core impregnation and anti-oxidation treatment device, comprising an impregnation tank and a filter and defoaming device spaced apart on one side of the impregnation tank, wherein a passivation liquid is placed inside the impregnation tank, and guide rollers are spaced apart at both ends of the impregnation tank, and four sets of blowing sections are spaced apart on the inner wall of the side of the impregnation tank near the discharge end of the stranded copper wire core, and two sets of guiding components are symmetrically arranged inside the impregnation tank, and an accelerating impregnation component, a liquid replenishment pipe and a defoaming component are spaced apart between the two sets of guiding components from left to right, and one end of the liquid replenishment pipe is connected to the liquid replenishment device; The defoaming assembly includes a mounting housing fixedly connected between the inner walls of both sides of the impregnation tank, with the lower two-thirds of the mounting housing submerged below the surface of the passivation liquid. Air is left between the upper end of the mounting housing and the liquid surface. A negative pressure device is provided at the upper end of the mounting housing, and the upper end of the mounting housing is connected to the inside of the negative pressure device. The defoaming assembly also includes a sealing conductive slip ring fixedly connected to the bottom of the impregnation tank via a bracket. A brush removal component is provided on one side of the sealing conductive slip ring, and two sets of counterweight components are spaced apart on the outer surface of the brush removal component.

[0007] Preferably, the brushing assembly includes a support ring fixedly connected to the bottom of the immersion tank and a connecting ring rotatably engaged with the inner side of the support ring, with both ends of the connecting ring penetrating the support ring. One end of the connecting ring is fixedly connected to the rotating end of the sealing conductive slip ring, and the other end of the connecting ring is fixedly connected to an installation ring.

[0008] Preferably, a fixed housing is fixedly connected to the outer surface of the mounting ring, and the fixed housing and the two sets of counterweight components are respectively arranged at three equal points on the outer surface of the mounting ring. A first water pump is fixedly installed through one end of the fixed housing, and a connecting cavity is opened in the inner wall of the mounting ring, and the connecting cavity connects the inner side of the mounting ring with the inside of the fixed housing.

[0009] Preferably, the counterweight component includes a counterweight block fixedly connected to the outer surface of the mounting ring, and a stirring blade is fixedly connected to the outside of the counterweight block.

[0010] Preferably, a transmission ring is detachably and fixedly connected to the inner side of the mounting ring. Multiple sets of connecting holes are opened through the position where the transmission ring coincides with the connecting cavity. Multiple sets of annular brushes are fixedly connected at intervals to the inner side of the transmission ring. The multiple sets of annular brushes are all arranged inside the transmission ring near the moving outlet end of the stranded copper wire core. The multiple sets of annular brushes are in contact with the outer surface of the stranded copper wire core.

[0011] Preferably, the filtration and defoaming device is provided with an inlet pipe and an outlet pipe at intervals on one side, and the inlet pipe is fixedly connected to the impregnation tank. The accelerated impregnation component includes a device housing fixedly disposed between the two sides of the impregnation tank, and the device housing is a box with a detachable upper end. One end of the outlet pipe passes through the impregnation tank and is fixedly connected to one side of the device housing. Clamping and moving components are provided on both sides inside the device housing, and the two sets of clamping and moving components are symmetrically arranged. A sealing component is provided between the two sets of clamping and moving components.

[0012] Preferably, multiple sets of flow holes are provided on both sides of the equipment housing, and multiple sets of stranded copper wire cores pass through the interior of the two overlapping sets of flow holes respectively, and the diameter of the flow holes is larger than the diameter of the stranded copper wire cores. Multiple sets of liquid outlet holes are provided at intervals on the upper end of the equipment housing, and rolling grooves are provided on both sides inside the equipment housing.

[0013] Preferably, the clamping and moving assembly includes an electric telescopic rod fixedly connected to one side of the equipment housing and a clamping part fixedly connected to the end of the electric telescopic rod. The two clamping ends of the clamping part are respectively connected to the upper and lower ends of the closed component. A roller is rotatably connected to one side of the clamping part through a connecting shaft, and the roller is rolled inside the rolling groove.

[0014] Preferably, the sealing component includes an upper shell and a lower shell respectively installed on the upper and lower ends of the inner sides of the two sets of clamping parts, and the upper shell and the lower shell are symmetrically installed with the same structure. Multiple sets of stranded copper wire cores pass through the contact surface of the upper shell and the lower shell. The contact surface of the upper shell and the lower shell, as well as the contact surface of the two shells and the stranded copper wire cores, are fixedly connected with continuous sealing strips. Multiple sets of second water pumps are fixedly connected through the upper end of the lower shell, and the multiple sets of second water pumps are respectively arranged above the multiple sets of stranded copper wire cores. A guide pipe is provided between the second water pump and the stranded copper wire core and is fixedly connected to the inner wall of the upper end of the upper shell. The water outlet of the second water pump is connected to the inside of the guide pipe. The lower end of the guide pipe has a strip-shaped outlet facing the stranded copper wire core.

[0015] Preferably, the guiding assembly includes two sets of steering guide rollers rotatably connected at intervals inside the impregnation tank, and a driving structure for driving the steering guide rollers to rotate is provided on the outside of the impregnation tank. Half of the lower ends of the two sets of steering guide rollers are submerged in the passivation liquid, and stranded copper wire cores are in contact with the lower ends of the two sets of steering guide rollers. Two sets of toothed limiting plates are detachably fixedly connected inside the impregnation tank, and the two sets of toothed limiting plates are spaced apart between the two sets of steering guide rollers. The upper end of the toothed limiting plates is toothed, and multiple sets of stranded copper wire cores pass through the toothed notches of the toothed limiting plates. The two sets of toothed limiting plates are spaced apart on the left side of the equipment housing and the right side of the mounting housing, respectively.

[0016] Compared with existing technologies, the advantages of this invention are: This invention, through the design of a housing, a negative pressure device, a sealing conductive slip ring, and a brushing assembly, allows the stranded copper wire core to enter the passivation liquid inside the impregnation tank and then penetrate into the inner side of the transmission ring. Multiple sets of annular brushes quickly remove large air bubbles adhering to the surface and strand gaps of the copper wire core, reducing bubble obstruction and allowing the passivation liquid to quickly fill the gaps, improving the wetting effect. A first water pump continuously draws liquid from the connecting cavity, creating negative pressure that simultaneously draws in and discharges the brushed-off air bubbles along with the passivation liquid, effectively preventing secondary adhesion of air bubbles to the surface of the stranded copper wire core. The counter-force of the first water pump during drainage drives the fixed housing and the mounting ring to rotate slowly, coordinated with two sets of counterweight components for balance. Rotating the center of gravity improves rotational stability, and the stirring blades agitate the surrounding passivation liquid, accelerating the rise and discharge of bubbles, further enhancing defoaming efficiency. Simultaneously, the fixed housing drives the transmission ring and the annular brush to rotate synchronously. Compared to stationary brushing, the bristles of the rotating annular brush are more easily embedded in the copper wire core strands, significantly reducing brushing dead angles and improving defoaming efficiency and effect. By creating a stable negative pressure inside the mounting housing through the negative pressure device, the air pressure inside the housing is lower than the hydrostatic pressure of the passivation liquid, which accelerates the rise of bubbles in the passivation liquid inside the mounting housing, further reducing the possibility of secondary adhesion of bubbles, thereby improving the integrity of the generated passivation film. This invention, through the design of a housing, a clamping and moving assembly, and a sealing component, continuously and slowly feeds clean passivation liquid into the housing via an outlet pipe, creating a processing environment with extremely low bubble and impurity content inside the housing. After the stranded copper wire core enters the housing, the opening and closing and movement of the upper and lower housings allow the passivation liquid to be continuously sprayed onto the outer surface of the stranded copper wire core via a second water pump and guide pipe. This accelerates the liquid renewal rate on the outer surface of the stranded copper wire core, improves the wetting efficiency, and promotes the passivation liquid to penetrate deep into the strand gaps of the stranded copper wire core through the impact of the liquid, effectively reducing the possibility of impregnation dead zones and improving the integrity of the passivation film, thereby enhancing the overall anti-oxidation effect of the stranded copper wire core. Through the reciprocating movement of the sealing component, continuous rinsing and impregnation of the stranded copper wire core is achieved, eliminating the need for intermittent winding, long-term impregnation, or S-shaped folding conveying. This not only improves the impregnation and anti-oxidation processing efficiency of the stranded copper wire core but also reduces the possibility of broken strands and conductor deformation defects in the stranded copper wire core. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a cross-linked polyethylene insulated cable core impregnation and anti-oxidation treatment device proposed in this invention. Figure 2 This is a schematic cross-sectional view of the overall structure of the cross-linked polyethylene insulated cable core impregnation and anti-oxidation treatment device proposed in this invention. Figure 3 This is a schematic diagram of the blowing section structure of a cross-linked polyethylene insulated cable core impregnation and anti-oxidation treatment device proposed in this invention; Figure 4 This is a cross-sectional view of the defoaming component and toothed limiting plate structure of a cross-linked polyethylene insulated cable core impregnation and anti-oxidation treatment device proposed in this invention. Figure 5 This is a schematic diagram of the defoaming component structure of a cross-linked polyethylene insulated cable core impregnation and anti-oxidation treatment device proposed in this invention; Figure 6 This is a cross-sectional view of the defoaming component of a cross-linked polyethylene insulated cable core impregnation and anti-oxidation treatment device proposed in this invention. Figure 7 For the present invention Figure 6 Enlarged detail image of point A in the middle; Figure 8 This is a schematic diagram of the accelerated impregnation component structure of a cross-linked polyethylene insulated cable core impregnation and anti-oxidation treatment device proposed in this invention; Figure 9 This is a schematic diagram of the internal structure of the accelerated impregnation component of the cross-linked polyethylene insulated cable core impregnation and anti-oxidation treatment device proposed in this invention. Figure 10 This is a schematic diagram of the clamping and moving component structure of a cross-linked polyethylene insulated cable core impregnation and anti-oxidation treatment device proposed in this invention. Figure 11 This is a partial structural diagram of the enclosed component of the cross-linked polyethylene insulated cable core impregnation and anti-oxidation treatment device proposed in this invention; Figure 12 This is a partial structural plan view of the enclosed component of a cross-linked polyethylene insulated cable core impregnation and anti-oxidation treatment device proposed in this invention.

[0018] In the diagram: 1. Impregnation tank; 2. Filtration and defoaming equipment; 21. Inlet pipe; 22. Outlet pipe; 3. Guide roller section; 4. Guide assembly; 41. Directional guide roller; 42. Toothed limiting plate; 5. Defoaming assembly; 51. Mounting housing; 52. Negative pressure equipment; 53. Sealing conductive slip ring; 54. Brush assembly; 541. Support ring; 542. Connecting ring; 543. Mounting ring; 544. Fixed housing; 545. First water pump; 546. Transmission ring; 547. Annular brush; 548. Connecting cavity; 549. Connecting hole; 55. Counterweight component; 551. Counterweight block; 552. Stirring blade; 6. Accelerating impregnation assembly; 61. Equipment housing; 611. Liquid outlet; 612. Rolling groove; 613. Flow hole; 62. Clamping and moving assembly; 621. Electric telescopic rod; 622. Clamping part; 623. Roller; 63. Sealing component; 631. Upper housing; 632. Lower housing; 633. Sealing strip; 634. Second water pump; 635. Guide tube; 7. Liquid replenishment tube; 8. Air blowing part. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] like Figures 1-12 As shown, a cross-linked polyethylene insulated cable core impregnation and anti-oxidation treatment device includes an impregnation tank 1 and a filter and defoaming device 2 spaced apart on one side of the impregnation tank 1. The impregnation tank 1 contains a passivation liquid. Guide rollers 3 are spaced apart at both ends of the impregnation tank 1. Four sets of air blowing sections 8 are spaced apart on the inner wall of the side of the impregnation tank 1 near the discharge end of the stranded copper wire core. Two sets of guide components 4 are symmetrically arranged inside the impregnation tank 1. An accelerated impregnation component 6, a liquid replenishment pipe 7, and a defoaming component 5 are spaced apart between the two sets of guide components 4 from left to right. One end of the liquid replenishment pipe 7 is connected to the liquid replenishment device. The guide rollers 3 and guide components 4 are used to guide the conductor when it moves, so that the stranded copper wire core can be partially immersed in the passivation liquid. The defoaming component 5 is used to quickly brush away the air bubbles attached to the strands of the stranded copper wire core after it enters the passivation liquid. The accelerated impregnation component 6 is used to accelerate the water flow into the tiny gaps of the stranded copper wire core through the flushing of water. The defoaming assembly 5 includes a mounting housing 51 fixedly connected between the inner walls of both sides of the impregnation tank 1, with the lower two-thirds of the mounting housing 51 submerged below the surface of the passivation liquid. Air is left between the upper end of the mounting housing 51 and the liquid surface. A negative pressure device 52 is provided at the upper end of the mounting housing 51, and the upper end of the mounting housing 51 communicates with the interior of the negative pressure device 52. The defoaming assembly 5 also includes a sealing conductive slip ring 53 fixedly connected to the bottom of the impregnation tank 1 via a bracket. A brush removal assembly 54 is provided on one side of the sealing conductive slip ring 53. Two sets of counterweights 55 are spaced apart on the outer surface of the brush removal assembly 54. It should be noted that maintaining a stable negative pressure at the upper end of the mounting housing 51 through the negative pressure device 52 and achieving rotational power supply through the sealing conductive slip ring 53 are both known prior art and will not be described in detail. The brush removal assembly 54 is used to remove air bubbles at the strand gaps on the outer surface of the stranded copper wire core. Both sets of counterweights 55 are used for counterweighting to facilitate the partial rotation of the brush removal assembly 54.

[0021] The brushing assembly 54 includes a support ring 541 fixedly connected to the bottom of the immersion tank 1 and a connecting ring 542 rotatably engaged with the inner side of the support ring 541. Both ends of the connecting ring 542 pass through the support ring 541. One end of the connecting ring 542 is fixedly connected to the rotating end of the sealing conductive slip ring 53, and the other end of the connecting ring 542 is fixedly connected to an installation ring 543. The connecting ring 542 is used to support the installation ring 543 and the connecting ring 542, reduce the torque on the sealing conductive slip ring 53, and extend the service life of the sealing conductive slip ring 53.

[0022] A fixed housing 544 is fixedly connected to the outer surface of the mounting ring 543, and the fixed housing 544 and two sets of counterweight components 55 are respectively set at three equal points on the outer surface of the mounting ring 543. A first water pump 545 is fixedly installed through one end of the fixed housing 544. A connecting cavity 548 is opened in the inner wall of the mounting ring 543, and the connecting cavity 548 connects the inner side of the mounting ring 543 with the inside of the fixed housing 544. The first water pump 545 can draw out the water inside the mounting ring 543 and spray it out along the outer edge of the mounting ring 543.

[0023] The counterweight component 55 includes a counterweight block 551 fixedly connected to the outer surface of the mounting ring 543. An agitator blade 552 is fixedly connected to the outside of the counterweight block 551. The two sets of counterweight components 55 are used to adjust the center of gravity of the brushing assembly 54, which can reduce the eccentricity of the mounting ring 543 when it rotates, making the rotation of the mounting ring 543 more stable.

[0024] A drive ring 546 is detachably and fixedly connected to the inner side of the mounting ring 543. Multiple sets of connecting holes 549 are opened through the position where the drive ring 546 coincides with the connecting cavity 548. Multiple sets of annular brushes 547 are fixedly connected at intervals inside the drive ring 546. The multiple sets of annular brushes 547 are all located inside the drive ring 546 near the moving outlet end of the stranded copper wire core. The multiple sets of annular brushes 547 are in contact with the outer surface of the stranded copper wire core. After the stranded copper wire core enters the inner side of the drive ring 546, its outer surface will come into contact with the multiple sets of annular brushes 547 in sequence. Since the unevenness of the outer surface of the stranded copper wire core is difficult to be quickly wetted by water, air bubbles will remain in these positions. The brushing action of the multiple sets of annular brushes 547 can quickly brush away the air bubbles.

[0025] The filtration and defoaming device 2 is provided with an inlet pipe 21 and an outlet pipe 22 spaced apart on one side. The inlet pipe 21 is fixedly connected to the impregnation tank 1. The accelerated impregnation component 6 includes a housing 61 fixedly disposed between the two sides of the impregnation tank 1. The housing 61 is a box with a detachable upper end. One end of the outlet pipe 22 passes through the impregnation tank 1 and is fixedly connected to one side of the housing 61. Clamping and moving components 62 are provided on both sides inside the housing 61. The two sets of clamping and moving components 62 are symmetrically arranged. A sealing component 63 is provided between the two sets of clamping and moving components 62. The housing 61 is used to reduce the impact of bubbles on the sealing component 63. The filtration and defoaming device 2 can transport the clean passivation liquid that removes impurities and bubbles to the inside of the housing 61 through the outlet pipe 22.

[0026] Multiple sets of flow holes 613 are provided on both sides of the equipment housing 61. Multiple sets of stranded copper wire cores pass through the two overlapping sets of flow holes 613 respectively, and the diameter of the flow holes 613 is larger than the diameter of the stranded copper wire cores. Multiple sets of liquid outlet holes 611 are provided at intervals at the upper end of the equipment housing 61. Rolling grooves 612 are provided on both sides of the inside of the equipment housing 61. When liquid is supplied into the equipment housing 61 through the liquid outlet pipe 22, any suspended impurities and air bubbles that may exist inside the equipment housing 61 will be discharged from the multiple sets of liquid outlet holes 611 and flow holes 613 along with the flow of passivating liquid. Thus, passivating liquid without air bubbles and impurities can be used to replace the passivating liquid that may contain impurities and air bubbles inside the equipment housing 61.

[0027] The clamping and moving assembly 62 includes an electric telescopic rod 621 fixedly connected to one side of the inside of the equipment housing 61 and a clamping part 622 fixedly connected to the end of the electric telescopic rod 621. The two clamping ends of the clamping part 622 are respectively connected to the upper and lower ends of the closed component 63. A roller 623 is rotatably connected to one side of the clamping part 622 through a connecting shaft, and the roller 623 is rolled inside the rolling groove 612. The electric telescopic rod 621 can drive the clamping part 622 and the roller 623 to move. The roller 623 is used to support the clamping part 622 to improve the stability of the movement. When the clamping part 622 moves, the roller 623 will roll inside the rolling groove 612 to reduce impurities generated by friction.

[0028] The sealing component 63 includes an upper housing 631 and a lower housing 632, respectively installed at the upper and lower ends of the inner sides of two sets of clamping parts 622. The upper housing 631 and the lower housing 632 are symmetrically installed with the same structure. Multiple sets of stranded copper wire cores pass through the contact surfaces of the upper housing 631 and the lower housing 632. Continuous sealing strips 633 are fixedly connected to the contact surfaces of the upper housing 631 and the lower housing 632, as well as their contact surfaces with the stranded copper wire cores. It should be noted that controlling the vertical separation and closing of the upper housing 631 and the lower housing 632 through the two sets of clamping parts 622 is a known prior art and will not be described in detail. When the upper housing 631 and the lower housing 632 are closed, their contact surfaces are sealed by the sealing strips 633. At the same time, the sealing strips 633 can form... The twisted copper wire core is sealed by a variable extrusion, thereby sealing the cavity formed by the upper housing 631 and the lower housing 632. Multiple sets of second water pumps 634 are fixedly connected through the upper end of the lower housing 632, and the multiple sets of second water pumps 634 are respectively arranged above the multiple sets of twisted copper wire cores. A guide tube 635 is provided between the second water pump 634 and the twisted copper wire core and is fixedly connected to the inner wall of the upper end of the upper housing 631. The water outlet of the second water pump 634 is connected to the inside of the guide tube 635. The lower end of the guide tube 635 has a strip-shaped outlet facing the twisted copper wire core. The second water pump 634 can draw water from the inside of the upper housing 631 and the lower housing 632 and transport it into the guide tube 635. Then the water can be slowly sprayed onto the outer surface of the twisted copper wire core.

[0029] The guiding assembly 4 includes two sets of guide rollers 41 rotatably connected at intervals inside the impregnation tank 1. A drive structure for driving the guide rollers 41 to rotate is provided on the outside of the impregnation tank 1. Half of the lower end of the two sets of guide rollers 41 is submerged in the passivation liquid. The stranded copper wire core is in contact with the lower end of the two sets of guide rollers 41. Two sets of toothed limiting plates 42 are detachably fixedly connected inside the impregnation tank 1. The two sets of toothed limiting plates 42 are spaced apart between the two sets of guide rollers 41. The upper end of the toothed limiting plate 42 is toothed. Multiple sets of stranded copper wire cores pass through the toothed notches of the toothed limiting plate 42. The two sets of toothed limiting plates 42 are spaced apart on the left side of the equipment housing 61 and the right side of the mounting housing 51. Both the two sets of guide rollers 41 and the toothed limiting plates 42 are used to guide the stranded copper wire core. The toothed setting of the toothed limiting plates 42 can prevent the stranded copper wire core from deviating during transportation.

[0030] In this invention, during the impregnation and anti-oxidation processing of stranded copper cores of cross-linked polyethylene insulated cables, the stranded copper cores are slowly conveyed by two sets of guide rollers 3, a steering guide roller 41, and an external winding device. During the conveying process, the two sets of steering guide rollers 41 guide the stranded copper cores so that the portion between the two sets of steering guide rollers 41 can be immersed in the passivation liquid, thereby generating a dense passivation film on the outer surface of the stranded copper cores and achieving the impregnation and anti-oxidation processing of the stranded copper cores. After the stranded copper wire core is submerged below the surface of the passivation solution in the impregnation tank 1, it first enters the inner side of the transmission ring 546. Due to the gaps on the outer surface of the stranded copper wire core, the passivation solution has difficulty quickly wetting the strands, resulting in a large number of air bubbles adhering to the outer surface of the stranded copper wire core. As the stranded copper wire core moves, it enters the transmission ring 546 and contacts multiple sets of annular brushes 547 in sequence. Through the brushing of the multiple sets of annular brushes 547, the large air bubbles adhering to the outer surface of the annular brushes 547 can be quickly brushed away, allowing the passivation solution to quickly fill the space originally occupied by the air bubbles. At the same time, the first water pump 545 continuously draws the water inside the connecting cavity 548 outward, creating a negative pressure inside the connecting cavity 548, which can remove the air bubbles brushed away from the outer surface of the stranded copper wire core along with the water. All air bubbles are drawn into the connecting cavity 548 and discharged through the first water pump 545. Since multiple sets of annular brushes 547 are located inside the transmission ring 546 near the outlet of the stranded copper wire core, sufficient space is provided for the air bubbles to enter the multiple connecting holes 549 when brushed away. This reduces the obstruction of the annular brushes 547 on the movement of the air bubbles, allowing them to quickly move away from the outer surface of the stranded copper wire core and avoid secondary adhesion. Because the negative pressure device 52 continuously generates a stable negative pressure inside the mounting housing 51, the air pressure inside the mounting housing 51 is lower than the hydrostatic pressure in the passivation liquid. This increases the buoyancy of the air bubbles within the mounting housing 51, accelerating their ascent. The bursting air bubbles can be discharged through the negative pressure device 52. The first water pump 545, during the discharge of water, provides additional pressure. The force causes the water pump to rotate slowly in the opposite direction of the water discharge, thus enabling both the fixed housing 544 and the mounting ring 543 to rotate slowly. During this process, the two sets of counterweights 55 not only balance the center of gravity of the rotation, but the two sets of stirring blades 552 also agitate the surrounding water, slowly disturbing the water body and accelerating the rising rate of air bubbles in the surrounding water body, further improving the efficiency of air bubble discharge and promoting the rising of air bubbles in the surrounding passivation liquid. At the same time, the rotation of the fixed housing 544 can drive the transmission ring 546 and multiple sets of annular brushes 547 to rotate as well. Compared with stationary brushing, when the rotating annular brushes 547 brush the outer surface of the stranded copper wire core, the bristles are more likely to embed into the strand gaps on the surface of the stranded copper wire core, reducing brushing dead angles and improving defoaming efficiency. In this invention, through the installation of the housing 51, negative pressure device 52, sealing conductive slip ring 53, and brushing assembly 54, the stranded copper wire core enters the passivation liquid inside the impregnation tank 1 and then penetrates the inner side of the transmission ring 546. Multiple sets of annular brushes 547 quickly remove large air bubbles from the surface of the copper wire core and the strand gaps, reducing air bubble obstruction and allowing the passivation liquid to quickly fill the gaps, improving the wetting effect. The first water pump 545 continuously draws liquid from the connecting cavity 548, creating negative pressure that simultaneously draws in and discharges the brushed-off air bubbles along with the passivation liquid, effectively preventing secondary adhesion of air bubbles to the surface of the stranded copper wire core. The counter-force of the first water pump 545 during drainage drives the fixed housing 544 and the mounting ring 543 to rotate slowly, coordinating with two sets of counterweight components 55 to balance the center of gravity.This design improves rotational stability, and the stirring blades 552 agitate the surrounding passivation liquid, accelerating the upward movement and discharge of air bubbles, further enhancing defoaming efficiency. Simultaneously, the fixed housing 544 drives the transmission ring 546 and the annular brush 547 to rotate synchronously. Compared to stationary brushing, the bristles of the rotating annular brush 547 more easily embed into the copper wire core strands, significantly reducing brushing dead zones and improving defoaming efficiency and effectiveness. The negative pressure device 52 creates a stable negative pressure inside the mounting housing 51, lowering the internal air pressure compared to the hydrostatic pressure of the passivation liquid. This accelerates the upward movement of air bubbles in the passivation liquid inside the mounting housing 51, further reducing the possibility of secondary adhesion of air bubbles, thereby improving the integrity of the resulting passivation film. After passing through the mounting ring 543, the stranded copper wire core enters the equipment housing 61. As the outlet pipe 22 continuously and slowly introduces clean passivating liquid into the equipment housing 61 to replace air bubbles and impurities, the air bubble content inside the equipment housing 61 becomes extremely low. Subsequently, the upper housing 631 and lower housing 632 close, and the electric telescopic rod 621 causes them to move slowly together with the stranded copper wire core. During this process, the second water pump 634 and guide pipe 635 continuously spray the passivating liquid onto the outer surface of the stranded copper wire core. This not only accelerates the liquid renewal rate on the outer surface of the stranded copper wire core and improves the wetting efficiency, but also utilizes the impact of the liquid... This facilitates the passivation solution's penetration deep into the strands of the stranded copper wire core, effectively reducing the possibility of impregnation dead zones and improving the overall anti-oxidation effect of the stranded copper wire core. Simultaneously, the closed upper shell 631 and lower shell 632 reduce the adverse effects of external impurities and air bubbles. When the upper shell 631 moves to two-fifths of its width, it separates from the lower shell 632 and moves back to its initial position, closing again and moving synchronously with the stranded copper wire core. Through the reciprocating movement of the sealing component 63, continuous rinsing and impregnation of the stranded copper wire core can be achieved without intermittent winding, effectively improving the impregnation and anti-oxidation effect of the stranded copper wire core. The efficiency of chemical processing is improved. As the stranded copper wire core continues to move, the passivation liquid adhering to the outer surface of the stranded copper wire core can be blown away by the air blowing part 8, reducing the time required for subsequent drying. This invention, through the arrangement of the equipment housing 61, clamping and moving assembly 62, and sealing component 63, continuously and slowly feeds clean passivation liquid into the equipment housing 61 through the liquid outlet pipe 22, creating a processing environment with extremely low bubble and impurity content inside the equipment housing 61. After the stranded copper wire core enters the equipment housing 61, it moves and opens through the opening and closing of the upper housing 631 and the lower housing 632. During this process, the passivation liquid is continuously sprayed towards the surface by the second water pump 634 and the guide pipe 635. The outer surface of the stranded copper wire core not only accelerates the liquid renewal rate and improves the wetting efficiency, but also promotes the passivation liquid to penetrate deep into the strand gaps of the stranded copper wire core through the impact of the liquid, effectively reducing the possibility of impregnation dead zones and improving the integrity of the passivation film, thereby improving the overall anti-oxidation effect of the stranded copper wire core. Through the reciprocating movement of the closed component 63, continuous rinsing and impregnation of the stranded copper wire core is achieved, eliminating the need for intermittent winding, long-term impregnation, or S-shaped folding conveying. This not only improves the impregnation and anti-oxidation processing efficiency of the stranded copper wire core, but also reduces the possibility of copper wire breakage and conductor deformation defects in the stranded copper wire core.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cross-linked polyethylene insulated cable core impregnation and anti-oxidation treatment device, comprising an impregnation tank (1) and a filter defoaming device (2) spaced apart on one side of the impregnation tank (1), wherein a passivation liquid is placed inside the impregnation tank (1), guide rollers (3) are spaced apart at both ends of the impregnation tank (1), and four sets of air blowing sections (8) are spaced apart on the inner wall of the side of the impregnation tank (1) near the discharge end of the stranded copper wire core, characterized in that, The impregnation tank (1) is symmetrically provided with two sets of guide components (4). Between the two sets of guide components (4), from left to right, there are an accelerated impregnation component (6), a liquid replenishment pipe (7) and a defoaming component (5), and one end of the liquid replenishment pipe (7) is connected to the liquid replenishment device. The defoaming assembly (5) includes a mounting housing (51) fixedly connected between the inner walls of both sides of the impregnation tank (1), and the lower two-thirds of the mounting housing (51) is submerged below the surface of the passivation liquid. Air is left between the upper end of the mounting housing (51) and the liquid surface. A negative pressure device (52) is provided at the upper end of the mounting housing (51), and the upper end of the mounting housing (51) is connected to the inside of the negative pressure device (52). The defoaming assembly (5) also includes a sealing conductive slip ring (53) fixedly connected to the bottom of the impregnation tank (1) through a bracket. A brush removal assembly (54) is provided on one side of the sealing conductive slip ring (53), and two sets of counterweight components (55) are spaced apart on the outer surface of the brush removal assembly (54).

2. The cross-linked polyethylene insulated cable core impregnation and anti-oxidation treatment device according to claim 1, characterized in that, The brushing assembly (54) includes a support ring (541) fixedly connected to the bottom of the immersion tank (1) and a connecting ring (542) rotatably connected to the inner side of the support ring (541). Both ends of the connecting ring (542) pass through the support ring (541). One end of the connecting ring (542) is fixedly connected to the rotating end of the sealing conductive slip ring (53), and the other end of the connecting ring (542) is fixedly connected to an installation ring (543).

3. The cross-linked polyethylene insulated cable core impregnation and anti-oxidation treatment device according to claim 2, characterized in that, The mounting ring (543) is fixedly connected to a fixed housing (544) on its outer surface. The fixed housing (544) and the two sets of counterweight components (55) are respectively located at three equal points on the outer surface of the mounting ring (543). The first water pump (545) is fixedly installed through one end of the fixed housing (544). A connecting cavity (548) is opened on the inner wall of the mounting ring (543), and the connecting cavity (548) connects the inner side of the mounting ring (543) with the inside of the fixed housing (544).

4. The cross-linked polyethylene insulated cable core impregnation and anti-oxidation treatment device according to claim 3, characterized in that, The counterweight component (55) includes a counterweight block (551) fixedly connected to the outer surface of the mounting ring (543), and a stirring blade (552) is fixedly connected to the outside of the counterweight block (551).

5. The cross-linked polyethylene insulated cable core impregnation and anti-oxidation treatment device according to claim 3, characterized in that, The inner side of the mounting ring (543) is detachably fixedly connected to a transmission ring (546). Multiple sets of connecting holes (549) are opened through the position where the transmission ring (546) overlaps with the connecting cavity (548). Multiple sets of annular brushes (547) are fixedly connected at intervals inside the transmission ring (546). The multiple sets of annular brushes (547) are all located inside the transmission ring (546) near the moving outlet end of the stranded copper wire core. The multiple sets of annular brushes (547) are in contact with the outer surface of the stranded copper wire core.

6. The cross-linked polyethylene insulated cable core impregnation and anti-oxidation treatment device according to claim 1, characterized in that, The filter defoaming device (2) is provided with an inlet pipe (21) and an outlet pipe (22) on one side at intervals. The inlet pipe (21) is fixedly connected to the impregnation tank (1). The accelerated impregnation component (6) includes a device housing (61) fixedly arranged between the two sides of the impregnation tank (1). The device housing (61) is a box with a detachable upper end. One end of the outlet pipe (22) passes through the impregnation tank (1) and is fixedly connected to one side of the device housing (61). Clamping moving components (62) are provided on both sides inside the device housing (61). The two sets of clamping moving components (62) are symmetrically arranged. A closing component (63) is provided between the two sets of clamping moving components (62).

7. The cross-linked polyethylene insulated cable core impregnation and anti-oxidation treatment device according to claim 6, characterized in that, Multiple sets of flow holes (613) are provided on both sides of the equipment housing (61). Multiple sets of stranded copper wire cores pass through the interior of the two overlapping sets of flow holes (613), and the diameter of the flow holes (613) is larger than the diameter of the stranded copper wire cores. Multiple sets of liquid outlet holes (611) are provided at intervals on the upper end of the equipment housing (61). Rolling grooves (612) are provided on both sides inside the equipment housing (61).

8. The cross-linked polyethylene insulated cable core impregnation and anti-oxidation treatment device according to claim 7, characterized in that, The clamping and moving assembly (62) includes an electric telescopic rod (621) fixedly connected to one side of the inside of the equipment housing (61) and a clamping part (622) fixedly connected to the end of the electric telescopic rod (621). The two clamping ends of the clamping part (622) are respectively connected to the upper and lower ends of the closed component (63). A roller (623) is rotatably connected to one side of the clamping part (622) through a connecting shaft, and the roller (623) is rolled inside the rolling groove (612).

9. The cross-linked polyethylene insulated cable core impregnation and anti-oxidation treatment device according to claim 8, characterized in that, The enclosing component (63) includes an upper housing (631) and a lower housing (632) respectively installed on the upper and lower ends of the inner sides of the two sets of clamping parts (622). The upper housing (631) and the lower housing (632) are symmetrically installed with the same structure. Multiple sets of stranded copper wire cores pass through the contact surfaces of the upper housing (631) and the lower housing (632). The contact surfaces of the upper housing (631) and the lower housing (632) as well as the contact surfaces of both with the stranded copper wire cores are fixedly connected with continuous sealing strips (6). 33) Multiple sets of second water pumps (634) are fixedly connected through the upper end of the lower housing (632), and the multiple sets of second water pumps (634) are respectively arranged above the multiple sets of stranded copper wire cores. A guide tube (635) is provided between the second water pump (634) and the stranded copper wire core and is fixedly connected to the inner wall of the upper end of the upper housing (631). The water outlet of the second water pump (634) is connected to the inside of the guide tube (635). The lower end of the guide tube (635) is provided with a strip outlet facing the stranded copper wire core.

10. The cross-linked polyethylene insulated cable core impregnation and anti-oxidation treatment device according to claim 6, characterized in that, The guide assembly (4) includes two sets of steering guide rollers (41) rotatably connected at intervals inside the impregnation tank (1), and a drive structure for driving the steering guide rollers (41) to rotate is provided on the outside of the impregnation tank (1). Half of the lower end of the two sets of steering guide rollers (41) is submerged in the passivation liquid. The stranded copper wire core is in contact with the lower end of the two sets of steering guide rollers (41). Two sets of toothed limiting plates (42) are detachably fixedly connected inside the impregnation tank (1), and the two sets of toothed limiting plates (42) are spaced apart between the two sets of steering guide rollers (41). The upper end of the toothed limiting plate (42) is toothed. Multiple sets of stranded copper wire cores pass through the toothed notch of the toothed limiting plate (42). The two sets of toothed limiting plates (42) are spaced apart on the left side of the equipment housing (61) and the right side of the mounting housing (51).

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