A cable repair method, apparatus, system, and medium

Abstract

The application discloses a cable repair method, device, system and medium, and belongs to the field of power cable maintenance. The method comprises the following steps: opening an injection hole and two sealing holes in a preset central area of a cable section to be repaired; injecting a repair liquid into the cable section to be repaired through the injection hole; when the repair liquid overflows from any sealing hole, stopping the injection of the repair liquid and injecting a sealing material into the sealing hole from which the repair liquid overflows; after the last sealing hole is injected with the sealing material, injecting the sealing material into the injection hole, and completing the repair of the cable section to be repaired; wherein the sealing material is an automatically solidified liquid insulation material, and the solidification time of the sealing material is shorter than that of the repair liquid. The application can improve the efficiency of cable repair.

Description

Technical Field

[0001] This application relates to the field of power cable maintenance, and in particular to a cable repair method, apparatus, system and medium. Background Technology

[0002] As high-voltage cross-linked polyethylene cables age, due to manufacturing defects or environmental factors, buffer layer erosion often occurs inside the cable, leading to electrical connection failure of the internal shielding layer. This can cause partial discharge and, in severe cases, even breakdown of the main insulation. Considering the extremely high cost and lengthy construction period for replacing faulty cables on a large scale, the current mainstream repair method is to inject a conductive repair fluid into the cable to rebuild the electrical connection and inhibit erosion.

[0003] However, existing repair injection processes mostly rely on the natural curing of the repair fluid at room temperature before lead sealing or welding can be used to seal all injection and vent ports. Otherwise, the uncured repair fluid will overflow when heated, making it impossible to repair the aluminum sheath. The curing speed of the repair fluid at room temperature is very slow, which requires construction personnel to wait on site for a long time. This not only increases labor costs but also seriously affects the overall efficiency of cable repair operations. Moreover, conventional sealing methods for injection and vent ports can easily lead to thermal damage to the cable. Summary of the Invention

[0004] This application provides a cable repair method, apparatus, system, and medium that can solve the problem of low cable repair efficiency in the prior art.

[0005] Some embodiments of this application provide a cable repair method, including: The drilling equipment is controlled to open an injection hole in the preset center area of ​​the cable segment to be repaired, and to open a sealing hole at both ends of the cable segment to be repaired. The first injection device is controlled to inject repair fluid into the cable segment to be repaired through the injection hole; When the repair fluid overflows from any of the sealing holes, the injection of the repair fluid is stopped, and the second injection device is controlled to inject sealing material into the sealing holes from which the repair fluid has overflowed. After the sealing material is injected into all the sealing holes, the second injection device is controlled to inject the sealing material into the injection holes to complete the repair of the cable segment to be repaired; wherein, the sealing material is an automatically curing liquid insulating material, and the curing time of the sealing material is less than the curing time of the repair liquid.

[0006] Compared with existing technologies, the above embodiments have the following beneficial effects: This application, by setting an injection hole in the predetermined central area of ​​the cable segment to be repaired and setting sealing holes at both ends, enables the repair fluid to diffuse and flow from the center to both sides, shortening the flow path of the repair fluid inside the cable, reducing flow resistance, and thus improving the filling efficiency of the repair fluid in the ablated areas inside the cable. Simultaneously, when the repair fluid overflows from the sealing holes, injection is stopped promptly, and a sealing material with a shorter curing time is injected to gradually seal the flow channel, creating a confined space for the repair fluid inside the cable, preventing continuous outflow and reducing ineffective injection. Furthermore, after the last sealing hole is sealed, the injection hole is sealed again, allowing the repair fluid to cure in a closed environment, thus completing the sealing process without relying on the natural curing process of the repair fluid itself. Through the above-described structured injection and staged sealing method, this application can effectively shorten the repair operation time and improve cable repair efficiency.

[0007] Further, the step of stopping the injection of the repair fluid when any of the sealing holes overflows, and controlling the second injection device to inject sealing material into the sealing holes from which the repair fluid has overflowed, includes: The sealing hole that first overflows the repair fluid is designated as the first sealing hole, and the other sealing hole is designated as the second sealing hole; After the repair fluid overflows from the first sealing hole, the injection of the repair fluid is stopped, and the second injection device is controlled to inject the sealing material into the first sealing hole; After the sealing material in the first sealing hole has solidified, the first injection device is controlled to continue injecting the repair fluid into the cable segment to be repaired through the injection hole; Once the repair fluid overflows from the second sealing hole, the injection of the repair fluid is stopped, and the second injection device is controlled to inject the sealing material into the second sealing hole.

[0008] Compared with the prior art, the above embodiments have the following beneficial effects: by identifying the sealing hole where the repair fluid overflows first as the first sealing hole, and continuing to inject repair fluid after the sealing material has solidified, the repair fluid forms a segmented filling process inside the cable, avoiding continuous outflow of repair fluid under unsealed conditions, thereby improving the fullness of repair fluid filling the remote area and reducing repair fluid waste, further improving repair quality and injection control accuracy.

[0009] Further, the step of controlling the second injection device to inject the sealing material into the injection holes after all the sealing holes have been filled with the sealing material, thereby completing the repair of the cable segment to be repaired, includes: After the sealing material is injected into all the sealing holes, the second injection device is controlled to inject the sealing material into the injection holes; During the curing process of the sealing material injected into the hole, the repair fluid inside the cable segment to be repaired is also cured simultaneously, thereby completing the repair of the cable segment to be repaired.

[0010] Compared with the prior art, the above embodiments have the following beneficial effects: after the last sealing hole is sealed, the injection hole is sealed, so that the repair fluid forms a completely closed curing space inside the cable. The repair fluid can be cured simultaneously during the curing process of the sealing material, thereby avoiding the problem of the repair fluid curing for too long in an open environment, further shortening the overall construction cycle and improving the repair efficiency.

[0011] Further, the first injection device includes: a repair fluid sealed tank, a pneumatic device, and an injection hose; controlling the first injection device to inject repair fluid into the cable segment to be repaired through the injection hole includes: The air pressure of the air pressure device is controlled so that the repair fluid in the repair fluid sealed tank is injected into the injection hole through the injection hose under the action of the air pressure, and the repair fluid is injected into the interior of the cable segment to be repaired through the injection hole.

[0012] Compared with the prior art, the above embodiments have the following beneficial effects: by setting up a first injection device including a repair fluid sealed tank, a pneumatic device and an injection hose, and using pneumatic pressure to drive the repair fluid to be injected into the cable, the injection pressure and flow rate can be controlled and adjusted, so that the repair fluid can stably overcome the internal resistance of the cable and spread evenly, thereby improving the stability of the injection process and the ability to adapt to repair sections of different lengths.

[0013] Furthermore, the controlled drilling device opens an injection hole in a predetermined central area of ​​the cable segment to be repaired, and opens sealing holes at both ends of the cable segment to be repaired, including: For each opening location in the cable segment to be repaired, the drilling equipment is controlled to remove the outer sheath at the opening location and to perform a lead-based treatment on the opening location; For each opening location in the cable segment to be repaired, the drilling equipment is controlled to perform drilling operations on the opening location after the lead-based treatment by using a limiting drill bit.

[0014] Compared with the prior art, the above embodiments have the following beneficial effects: by removing and removing the cable sheath and applying lead before drilling, and using a limiting drill bit for drilling, damage to the internal insulation layer during drilling can be effectively avoided, while ensuring the controllability of the hole depth and position, thereby improving the safety of the repair construction and the hole quality, and providing a reliable structural foundation for subsequent grouting and sealing.

[0015] Furthermore, the sheath includes an aluminum sheath and an outer sheath; after controlling the second injection device to inject the sealing material into the injection hole, the method further includes: Control the sheath repair equipment to repair each of the aforementioned opening locations using a lead-sealing process; Control the sheath repair equipment to repair the outer sheath corresponding to each opening position by wrapping multiple layers of protective tape.

[0016] Compared with the prior art, the above embodiments have the following beneficial effects: after the internal repair is completed, the aluminum sheath is repaired by sealing with lead and the outer sheath is repaired by wrapping with multiple layers of protective tape, so that the cable can be restored to a level close to the original in terms of mechanical strength and sealing performance, thereby preventing external moisture or impurities from intruding again and improving the long-term operational reliability and environmental adaptability after repair.

[0017] Furthermore, the sealing material has heat insulation properties.

[0018] By selecting sealing materials with heat-insulating properties, a thermal insulation layer can be formed in the sealing area, avoiding thermal damage to the internal cable structure caused by high temperature during the aluminum sheath lead sealing repair process, and improving the reliability of buffer layer repair.

[0019] Another embodiment of this application also provides a cable repair device, including: a first control module, a second control module, a third control module, and a fourth control module; The first control module is used to control the drilling device to open an injection hole in a preset central area of ​​the cable segment to be repaired, and to open a sealing hole at both ends of the cable segment to be repaired. The second control module is used to control the first injection device to inject repair fluid into the cable segment to be repaired through the injection hole; The third control module is used to stop injecting the repair fluid when any of the sealing holes overflows with the repair fluid, and to control the second injection device to inject sealing material into the sealing holes that have overflowed with the repair fluid. The fourth control module is used to control the second injection device to inject the sealing material into the injection holes after all the sealing holes have been filled with the sealing material, thereby completing the repair of the cable segment to be repaired; wherein the sealing material is an automatically curing liquid insulating material, and the curing time of the sealing material is less than the curing time of the repair liquid.

[0020] Another embodiment of this application provides a cable repair system, including: a control chip, a drilling device, a first injection device, and a second injection device; the control chip controls the drilling device, the first injection device, and the second injection device to repair the cable segment to be repaired by executing the steps of the cable repair method of this application.

[0021] Another embodiment of this application also provides a computer-readable storage medium item, including: a stored computer program, which, when the computer program is running, controls the device where the computer-readable storage medium is located to perform the steps of the cable repair method of this application. Attached Figure Description

[0022] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a flowchart illustrating a cable repair method provided in some embodiments of this application; Figure 2 This is a schematic diagram of a cable opening provided in some embodiments of this application; Figure 3 This is a schematic diagram of the structure of a cable repair device provided in some embodiments of this application. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0026] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0027] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0028] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0029] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0030] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0031] Existing repair and grouting processes mostly rely on the natural curing of the repair fluid at room temperature. The curing speed of the repair fluid at room temperature is extremely slow, which requires construction personnel to wait on site for a long time. This not only increases labor costs, but also seriously affects the overall efficiency of cable repair operations.

[0032] Please refer to Figure 1 To address the problem of low cable repair efficiency in existing technologies, this application provides a cable repair method comprising the following steps S101 to S104: S101: Control the drilling equipment to open an injection hole in the preset center area of ​​the cable segment to be repaired, and to open a sealing hole at both ends of the cable segment to be repaired.

[0033] Preferably, in some embodiments of this application, reference is made to Figure 2The schematic diagram of the cable opening shown illustrates that when drilling a hole in the cable segment to be repaired, an injection hole 101 is opened in the central area of ​​the cable segment to be repaired, and then a sealing hole 102 is opened at both ends of the cable to be repaired. Furthermore, sealing material is injected into the sealing material injection area 103 through the sealing hole 102 or the injection hole 101 at each opening position, and lead sealing treatment is performed at the lead sealing treatment position 104 to restore the damage to the aluminum sheath caused by the drilling.

[0034] Furthermore, in some embodiments of this application, the controlled drilling device opens an injection hole in a predetermined central region of the cable segment to be repaired, and opens sealing holes at both ends of the cable segment to be repaired, including: For each opening location in the cable segment to be repaired, the drilling equipment is controlled to remove the outer sheath at the opening location and to perform a lead-based treatment on the opening location; For each opening location in the cable segment to be repaired, the drilling equipment is controlled to perform drilling operations on the opening location after the lead-based treatment by using a limiting drill bit.

[0035] Preferably, in some embodiments of this application, when drilling holes in the cable segment to be repaired, the sheaths at the drilling location are first removed, referring to... Figure 2 As shown, the multi-layer sheath includes an outer sheath 2 and an aluminum sheath 3, with the cable to be repaired 1 inside the aluminum sheath.

[0036] Preferably, in some embodiments of this application, the drilling device includes any equipment or tool used in the drilling process, including but not limited to: a hand saw for circumferential cutting of the outer sheath, rags for removing the asphalt layer, and a drilling tool for drilling holes in the aluminum sheath.

[0037] Preferably, in some embodiments of this application, at each opening location in the cable segment to be repaired, the drilling device is controlled to remove the outer sheath at the opening location and perform a lead-based underlay treatment on the opening location, including the following steps S1011 to S1013: S1011: Perform a circumferential cut on the outer sheath 2 at the locations where holes need to be drilled in the cable segment to be repaired. The locations for drilling are the middle and both ends of the cable segment to be repaired, with a circumferential cut length of 30cm at each location. Use an electric saw to perform the circumferential cut on the outer sheath 2, ensuring a clean cut without damaging the internal structure; S1012: After the outer sheath 2 is circumferentially cut, use an abrasive to remove the asphalt from the surface of the aluminum sheath 3 to ensure that the surface is clean and free of impurities, so as to facilitate subsequent drilling and injection of repair fluid; S1013: Apply lead to the opening of the aluminum sheath 3 to facilitate injection into the clamp for sealing and subsequent lead sealing.

[0038] This application effectively avoids damage to the internal insulation layer during drilling by removing and removing lead from the cable sheath before drilling, and by using a limiting drill bit for drilling. At the same time, it ensures the controllability of the hole depth and position, thereby improving the safety of the repair construction and the quality of the hole, and providing a reliable structural foundation for subsequent grouting and sealing.

[0039] S102: Control the first injection device to inject repair fluid into the cable segment to be repaired through the injection hole.

[0040] Furthermore, in some embodiments of this application, the first injection device includes: a repair fluid sealed tank, a pneumatic device, and an injection hose; controlling the first injection device to inject repair fluid into the cable segment to be repaired through the injection hole includes: The air pressure of the air pressure device is controlled so that the repair fluid in the repair fluid sealed tank is injected into the injection hole through the injection hose under the action of the air pressure, and the repair fluid is injected into the interior of the cable segment to be repaired through the injection hole.

[0041] Preferably, in some embodiments of this application, the first injection device further includes: an injection valve and a clamp; controlling the first injection device to inject repair fluid into the cable segment to be repaired through the injection hole includes: using the clamp to install the injection valve at the injection hole 101, connecting the repair fluid sealed container and the injection valve with an injection hose, and connecting the air pressure device to the sealed container to ensure that all connections are tight and leak-free; pouring the repair fluid into the repair fluid sealed container, setting the air pressure device pressure to 0.6-1.0 MPa, opening the injection valve, and injecting the repair fluid into the air gap layer of the cable buffer layer.

[0042] This application, by setting up a first injection device including a repair fluid sealed tank, a pneumatic device and an injection hose, and using pneumatic pressure to drive the repair fluid into the cable, can achieve controllable adjustment of injection pressure and flow rate, so that the repair fluid can stably overcome the internal resistance of the cable and spread evenly, thereby improving the stability of the injection process and the ability to adapt to repair sections of different lengths.

[0043] Furthermore, in some embodiments of this application, the sealing material has heat-insulating properties.

[0044] Preferably, in some embodiments of this application, the sealing material is a foamed material that, when injected into the area to be sealed, rapidly expands and fills all gaps and pores to form a tight sealing layer. This sealing layer can block liquids and has good thermal insulation properties.

[0045] This application utilizes sealing materials with heat-insulating properties to form a thermal insulation layer in the sealing area, preventing thermal damage to the internal cable structure caused by high temperatures during the aluminum sheath lead sealing repair process and improving the reliability of the buffer layer repair.

[0046] S103: When any of the sealing holes overflows with the repair fluid, stop injecting the repair fluid and control the second injection device to inject sealing material into the sealing hole that has overflowed with the repair fluid.

[0047] It is understandable that, due to the difficulty in ensuring that the injection hole 101 is precisely centered on the cable segment to be repaired when selecting its location, and because the cable segment to be repaired may not be perfectly horizontal due to differences in terrain or installation methods during cable laying, the repair fluid may overflow from one end of the cable's sealing hole 102 first. When repair fluid is observed overflowing from the sealing hole 102 at one end, the repair fluid injection device should be shut off immediately, and the injection of repair fluid should be suspended. This application does not limit the second injection equipment used for injecting the sealing material.

[0048] Furthermore, in some embodiments of this application, the step of stopping the injection of the repair fluid when any of the sealing holes overflows with the repair fluid, and controlling the second injection device to inject sealing material into the sealing holes from which the repair fluid has overflowed, includes: The sealing hole that first overflows the repair fluid is designated as the first sealing hole, and the other sealing hole is designated as the second sealing hole; After the repair fluid overflows from the first sealing hole, the injection of the repair fluid is stopped, and the second injection device is controlled to inject the sealing material into the first sealing hole; After the sealing material in the first sealing hole has solidified, the first injection device is controlled to continue injecting the repair fluid into the cable segment to be repaired through the injection hole; Once the repair fluid overflows from the second sealing hole, the injection of the repair fluid is stopped, and the second injection device is controlled to inject the sealing material into the second sealing hole.

[0049] Preferably, in some embodiments of this application, when repair fluid overflows from the first sealing hole, the overflowing repair fluid is cleaned up, and sealing material is injected into the first sealing hole so that the sealing material quickly expands within the sealing material injection area 103 corresponding to the first sealing hole, thereby forming a sealing layer at the outlet of the first sealing hole to prevent repair fluid leakage and to block the repair fluid from continuing to flow towards the first sealing hole. After the sealing material of the first sealing hole has naturally solidified, repair fluid is continued to be injected into the injection hole 101 until repair fluid overflows from the second sealing hole of the cable segment to be repaired, at which point the injection stops. Then, the repair fluid overflowing from the second sealing hole is cleaned up, and sealing material is injected into the second sealing hole to prevent repair fluid from overflowing when restoring the external protection structure of the cable to be repaired.

[0050] Preferably, in some embodiments of this application, when injecting sealing material into any hole, the corresponding injection and sealing area is selected as 7 to 8 aluminum sheath pitches.

[0051] This application identifies the first sealing hole where the repair fluid overflows and then continues to inject repair fluid after the sealing material has cured. This allows the repair fluid to fill the cable in a step-by-step manner, preventing continuous outflow of the repair fluid under unsealed conditions. This improves the filling capacity of the repair fluid in the remote area, reduces waste of repair fluid, and further enhances the repair quality and injection control accuracy.

[0052] S104: After the sealing material is injected into all the sealing holes, the second injection device is controlled to inject the sealing material into the injection holes to complete the repair of the cable segment to be repaired; wherein the sealing material is an automatically curing liquid insulating material, and the curing time of the sealing material is less than the curing time of the repair liquid.

[0053] Under normal conditions, the curing time of the repair fluid mentioned in this application is one day, while the curing time of the sealing material is 30 to 60 seconds. The curing time of the sealing material is much shorter than that of the repair fluid, thus effectively improving the repair efficiency.

[0054] Furthermore, in some embodiments of this application, the step of controlling the second injection device to inject the sealing material into the injection holes after all the sealing holes have been filled with the sealing material, thereby completing the repair of the cable segment to be repaired, includes: After the sealing material is injected into all the sealing holes, the second injection device is controlled to inject the sealing material into the injection holes; During the curing process of the sealing material injected into the hole, the repair fluid inside the cable segment to be repaired is also cured simultaneously, thereby completing the repair of the cable segment to be repaired.

[0055] Preferably, in some embodiments of this application, after the sealing material is injected into the second sealing hole, the sealing material in the second sealing hole begins a natural curing process, while sealing material is simultaneously injected into the injection hole 101. At this time, the second sealing hole, the injection hole, and the repair fluid are in a state of synchronous curing, and the restoration of the damaged external structure of the cable segment to be repaired can begin. Since the above process is carried out simultaneously, compared with the limitation of the prior art that requires waiting for the repair to cure before the external structure can be restored, this application can effectively improve the cable repair process.

[0056] Preferably, in some embodiments of this application, before injecting the sealing material into the injection hole 101, it is necessary to first remove the first injection device, specifically including: depressurizing the first injection device, removing the first injection device, and waiting for no repair fluid to overflow from the injection hole 101 before injecting the sealing material into the injection hole 101.

[0057] After the last sealing hole is sealed, the injection hole is then sealed, so that the repair fluid forms a completely sealed curing space inside the cable. This allows the repair fluid to cure simultaneously with the sealing material, thus avoiding the problem of excessive curing time for the repair fluid in an open environment, further shortening the overall construction cycle and improving repair efficiency.

[0058] Furthermore, in some embodiments of this application, the sheath includes an aluminum sheath and an outer sheath; after controlling the second injection device to inject the sealing material into the injection hole, the method further includes: Control the sheath repair equipment to repair each of the aforementioned opening locations using a lead-sealing process; Control the sheath repair equipment to repair the outer sheath corresponding to each opening position by wrapping multiple layers of protective tape.

[0059] Preferably, in some embodiments of this application, the sheath repair equipment includes a lead sealing device for sealing lead and a winding device for winding multiple layers of protective tape.

[0060] Preferably, in some embodiments of this application, the repair of the outer sheath corresponding to each opening position by wrapping multiple layers of protective tape includes: sequentially wrapping insulating self-adhesive tape, waterproof tape and polyvinyl chloride tape to restore the structure of the outer sheath 2.

[0061] After the internal repairs are completed, the aluminum sheath is repaired by sealing with lead and the outer sheath is repaired by wrapping with multiple layers of protective tape. This restores the cable's mechanical strength and sealing performance to near its original level, thereby preventing external moisture or impurities from re-entering and improving the long-term operational reliability and environmental adaptability after repair.

[0062] In summary, the cable repair method provided in this application has the following advantages compared to the prior art: This application sets an injection hole in the preset central area of ​​the cable segment to be repaired and sets sealing holes at both ends, enabling the repair fluid to diffuse from the center to both sides, shortening the flow path of the repair fluid inside the cable, reducing flow resistance, and thus improving the filling efficiency of the repair fluid in the ablated areas inside the cable. Simultaneously, when the repair fluid overflows from the sealing holes, the injection is stopped in time and a sealing material with a shorter curing time is injected to gradually seal the flow channel, creating a confined space for the repair fluid inside the cable, preventing continuous outflow and reducing ineffective injection. Furthermore, after the last sealing hole is sealed, the injection hole is sealed again, allowing the repair fluid to cure in a closed environment, thus completing the sealing process without relying on the natural curing process of the repair fluid itself. Through the above-mentioned structured injection and staged sealing method, this application can effectively shorten the repair operation time and improve the cable repair efficiency.

[0063] like Figure 3 As shown, based on the above-described method embodiments, this application provides a cable repair device, including: a first control module 201, a second control module 202, a third control module 203, and a fourth control module 204; The first control module 201 is used to control the drilling device to open an injection hole in a preset central area of ​​the cable segment to be repaired, and to open a sealing hole at both ends of the cable segment to be repaired. The second control module 202 is used to control the first injection device to inject repair fluid into the cable segment to be repaired through the injection hole; The third control module 203 is used to stop injecting the repair fluid when any of the sealing holes overflows the repair fluid, and to control the second injection device to inject sealing material into the sealing holes that have overflowed the repair fluid; The fourth control module 204 is used to control the second injection device to inject the sealing material into the injection holes after all the sealing holes have been filled with the sealing material, thereby completing the repair of the cable segment to be repaired; wherein the sealing material is an automatically curing liquid insulating material, and the curing time of the sealing material is less than the curing time of the repair liquid.

[0064] Further, in some embodiments of this application, the third control module 203 includes: a setting unit, a first control unit, a second control unit, and a third control unit; the third control module 203 is used to stop injecting the repair fluid when any of the sealing holes overflows with the repair fluid, and to control the second injection device to inject sealing material into the sealing holes from which the repair fluid has overflowed, including: The setting unit is used to designate the sealing hole that first overflows the repair fluid as the first sealing hole and the other sealing hole as the second sealing hole. The first control unit is configured to stop injecting the repair fluid after the repair fluid overflows from the first sealing hole, and to control the second injection device to inject the sealing material into the first sealing hole; The second control unit is used to control the first injection device to continue injecting the repair fluid into the cable segment to be repaired through the injection hole after the sealing material in the first sealing hole has solidified; The third control unit is used to stop injecting the repair fluid after the repair fluid overflows from the second sealing hole, and to control the second injection device to inject the sealing material into the second sealing hole.

[0065] Further, in some embodiments of this application, the fourth control module 204 includes: a fourth control unit and a curing unit; the fourth control module 204 is used to control the second injection device to inject the sealing material into the injection holes after all the sealing holes have been filled with the sealing material, thereby completing the repair of the cable segment to be repaired, including: The fourth control unit is used to control the second injection device to inject the sealing material into the injection holes after all the sealing holes have been filled with the sealing material; The curing unit is used to simultaneously cure the repair fluid inside the cable segment to be repaired during the curing process of the sealing material in the injection hole, so as to complete the repair of the cable segment to be repaired.

[0066] Furthermore, in some embodiments of this application, the first injection device includes: a repair fluid sealed container, a pneumatic device, and an injection hose; the second control module 202 is used to control the first injection device to inject repair fluid into the cable segment to be repaired through the injection hole, including: controlling the pneumatic pressure of the pneumatic device, so that the repair fluid in the repair fluid sealed container is injected into the injection hole through the injection hose under the action of the pneumatic pressure, and the repair fluid is injected into the interior of the cable segment to be repaired through the injection hole.

[0067] Further, in some embodiments of this application, the first control module 201 includes: a fifth control unit and a sixth control unit; the first control module 201 is used to control the drilling device to open an injection hole in a preset center area of ​​the cable segment to be repaired, and to open sealing holes at both ends of the cable segment to be repaired, including: The fifth control unit is used to control the drilling device to remove the outer sheath of the opening position for each opening position in the cable segment to be repaired, and to perform lead-based treatment on the opening position. The sixth control unit is used to control the drilling equipment to perform drilling operations on the opening positions after lead-based treatment at each opening position in the cable segment to be repaired, using a limiting drill bit.

[0068] Furthermore, in some embodiments of this application, the sheath includes an aluminum sheath and an outer sheath; the fourth control unit, after controlling the second injection device to inject the sealing material into the injection hole, further includes: Control the sheath repair equipment to repair each of the aforementioned opening locations using a lead-sealing process; Control the sheath repair equipment to repair the outer sheath corresponding to each opening position by wrapping multiple layers of protective tape.

[0069] Furthermore, in some embodiments of this application, the sealing material has heat-insulating properties.

[0070] In summary, the cable repair device provided in this application has the following advantages compared to the prior art: This application sets an injection hole in the preset central area of ​​the cable segment to be repaired and sets sealing holes at both ends, enabling the repair fluid to diffuse from the center to both sides, shortening the flow path of the repair fluid inside the cable, reducing flow resistance, and thus improving the filling efficiency of the repair fluid in the ablated areas inside the cable. Simultaneously, when the repair fluid overflows from the sealing holes, the injection is stopped in time and a sealing material with a shorter curing time is injected to gradually seal the flow channel, creating a confined space for the repair fluid inside the cable, preventing continuous outflow and reducing ineffective injection. Furthermore, after the last sealing hole is sealed, the injection hole is sealed again, allowing the repair fluid to cure in a closed environment, thus completing the sealing process without relying on the natural curing process of the repair fluid itself. Through the above-mentioned structured injection and staged sealing method, this application can effectively shorten the repair operation time and improve the cable repair efficiency.

[0071] It is understood that the above-described device embodiments correspond to the method embodiments of this application, and can implement the cable repair method provided by any of the above-described method embodiments of this application.

[0072] It should be noted that the device embodiments described above are merely illustrative, and some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Furthermore, in the accompanying drawings of the device embodiments provided in this application, the connection relationships between modules indicate that they have communication connections, which can specifically be implemented as one or more communication buses or signal lines. Those skilled in the art can understand and implement this without any creative effort.

[0073] Based on the above-described cable repair method embodiments, another embodiment of this application provides a cable repair system, including: a control chip, a drilling device, a first injection device, and a second injection device; the control chip controls the drilling device, the first injection device, and the second injection device to repair the cable segment to be repaired by executing the steps of the cable repair method of this application.

[0074] Based on the above embodiments of the cable repair method, another embodiment of this application provides a terminal device, which includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor. When the processor executes the computer program, it implements the cable repair method of any embodiment of this application.

[0075] For example, in this embodiment, the computer program can be divided into one or more modules, which are stored in the memory and executed by the processor to complete this application. The one or more module units may be a series of computer program instruction segments capable of performing a specific function, which describe the execution process of the computer program in the terminal device.

[0076] The terminal device may be a desktop computer, laptop, handheld computer, or cloud server, etc. The terminal device may include, but is not limited to, a processor and a memory.

[0077] The processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor. The processor is the control center of the terminal device, connecting all parts of the terminal device via various interfaces and lines.

[0078] Based on the above-described method embodiments, another embodiment of this application provides a computer-readable storage medium including a stored computer program, wherein, when the computer program is executed, it controls the device where the computer-readable storage medium is located to perform the cable repair method described in any of the above-described method embodiments of this application.

[0079] The modules / units integrated in the device / terminal equipment, if implemented as software functional units and sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc.

Claims

1. A cable repair method, characterized in that, include: The drilling equipment is controlled to open an injection hole in the preset center area of ​​the cable segment to be repaired, and to open a sealing hole at both ends of the cable segment to be repaired. The first injection device is controlled to inject repair fluid into the cable segment to be repaired through the injection hole; When the repair fluid overflows from any of the sealing holes, the injection of the repair fluid is stopped, and the second injection device is controlled to inject sealing material into the sealing holes from which the repair fluid has overflowed. After the sealing material is injected into all the sealing holes, the second injection device is controlled to inject the sealing material into the injection holes to complete the repair of the cable segment to be repaired; wherein, the sealing material is an automatically curing liquid insulating material, and the curing time of the sealing material is less than the curing time of the repair liquid.

2. The cable repair method as described in claim 1, characterized in that, When any of the sealing holes overflows with the repair fluid, the injection of the repair fluid is stopped, and the second injection device is controlled to inject sealing material into the sealing hole from which the repair fluid has overflowed, including: The sealing hole that first overflows the repair fluid is designated as the first sealing hole, and the other sealing hole is designated as the second sealing hole; After the repair fluid overflows from the first sealing hole, the injection of the repair fluid is stopped, and the second injection device is controlled to inject the sealing material into the first sealing hole; After the sealing material in the first sealing hole has solidified, the first injection device is controlled to continue injecting the repair fluid into the cable segment to be repaired through the injection hole; Once the repair fluid overflows from the second sealing hole, the injection of the repair fluid is stopped, and the second injection device is controlled to inject the sealing material into the second sealing hole.

3. The cable repair method as described in claim 1, characterized in that, After all the sealing holes have been filled with the sealing material, the second injection device is controlled to inject the sealing material into the injection holes to complete the repair of the cable segment to be repaired, including: After the sealing material is injected into all the sealing holes, the second injection device is controlled to inject the sealing material into the injection holes; During the curing process of the sealing material injected into the hole, the repair fluid inside the cable segment to be repaired is also cured simultaneously, thereby completing the repair of the cable segment to be repaired.

4. The cable repair method as described in claim 1, characterized in that, The first injection device includes: a repair fluid sealed tank, a pneumatic device, and an injection hose; controlling the first injection device to inject repair fluid into the cable segment to be repaired through the injection hole includes: The air pressure of the air pressure device is controlled so that the repair fluid in the repair fluid sealed tank is injected into the injection hole through the injection hose under the action of the air pressure, and the repair fluid is injected into the interior of the cable segment to be repaired through the injection hole.

5. A cable repair method as described in claim 1, characterized in that, The controlled drilling device drills an injection hole in a predetermined center area of ​​the cable segment to be repaired, and drills sealing holes at both ends of the cable segment to be repaired, including: For each opening location in the cable segment to be repaired, the drilling equipment is controlled to remove the outer sheath at the opening location and to perform a lead-based treatment on the opening location; For each opening location in the cable segment to be repaired, the drilling equipment is controlled to perform drilling operations on the opening location after the lead-based treatment by using a limiting drill bit.

6. The cable repair method as described in claim 5, characterized in that, After controlling the second injection device to inject the sealing material into the injection hole, the method further includes: Control the sheath repair equipment to repair each of the aforementioned opening locations using a lead-sealing process; Control the sheath repair equipment to repair the outer sheath corresponding to each opening position by wrapping multiple layers of protective tape.

7. A cable repair method as described in any one of claims 1 to 6, characterized in that, The sealing material has heat insulation properties.

8. A cable repair device, characterized in that, include: The first control module, the second control module, the third control module, and the fourth control module; The first control module is used to control the drilling device to open an injection hole in a preset central area of ​​the cable segment to be repaired, and to open a sealing hole at both ends of the cable segment to be repaired. The second control module is used to control the first injection device to inject repair fluid into the cable segment to be repaired through the injection hole; The third control module is used to stop injecting the repair fluid when any of the sealing holes overflows with the repair fluid, and to control the second injection device to inject sealing material into the sealing holes that have overflowed with the repair fluid. The fourth control module is used to control the second injection device to inject the sealing material into the injection holes after all the sealing holes have been filled with the sealing material, thereby completing the repair of the cable segment to be repaired; wherein the sealing material is an automatically curing liquid insulating material, and the curing time of the sealing material is less than the curing time of the repair liquid.

9. A cable repair system, characterized in that, include: Control chip, drilling equipment, first injection equipment, and second injection equipment; The control chip controls the drilling device, the first injection device, and the second injection device to repair the cable segment to be repaired by executing a cable repair method as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored computer program, wherein, when the computer program is executed, it controls the device on which the computer-readable storage medium is located to perform a cable repair method as described in any one of claims 1 to 7.

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