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KR-102963142-B1 - AI-Managed Submarine Cable Armor Clamp and Management Method for Enhanced Armor Wire Fixation Strength

KR102963142B1KR 102963142 B1KR102963142 B1KR 102963142B1KR-102963142-B1

Abstract

The present invention relates to an AI-managed submarine cable armor clamp with improved armor wire fixing force and a method for managing the same. More specifically, the invention relates to an armor clamp and a method for managing the same in which the lower body flange constituting the armor clamp and the radially arranged armor wires are fixed so that they do not overlap, thereby allowing the upper compression flange to stably connect and compress the armor wires, and in which a detection sensor is installed on one side of the armor clamp to detect vibrations, heat, or current changes transmitted through the submarine cable, thereby predicting the point at which power loss increases and enabling inspection in advance.

Inventors

  • 강병춘

Assignees

  • (주)비에스블루온

Dates

Publication Date
20260511
Application Date
20251107

Claims (6)

  1. In an armor clamp for securely connecting a submarine cable to a structure on the sea or land, A flange assembly configured to be separated into left and right sides, each comprising: a lower body flange fixedly installed on the base of a structure and having a through hole formed in the center for inserting a submarine cable, integrally formed such that the lower flange portion and the upper flange portion of the flange connecting cylinder portion are arranged coaxially, and having a resin layer formed in the inner empty space of the flange connecting cylinder portion containing a holder clamp assembly; and an upper compression flange formed with a neck portion that is bolted to the upper flange portion of the lower body flange, applies pressure to prevent detachment by interposing radially arranged cut armor wires, and supports so that only the power line from which the armor wires have been removed is pulled out upward; It is composed of a holder clamp assembly that presses a submarine cable inserted into and passing through the flange connection cylinder of the lower body flange from both sides, wherein In the upper flange portion above, a plurality of fastening holes, which are vertical through holes, are formed radially in the portion adjacent to the edge, and In each of the above fastening holes, a fixing bolt with a loop formed on its head is inserted to secure the armor wire, wherein one to three armor wires are inserted through the loop of the bolt head on the upper side of the fastening hole, and at the lower side of the fastening hole, the fixing bolt is screw-coupled to the body of the fixing bolt to secure it to the upper flange. A submarine cable armor clamp characterized by further forming a loop insertion groove on the bottom surface of the upper compression flange, into which a loop portion of a fixing bolt protruding upward from the upper surface of the upper flange is inserted.
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  3. In paragraph 1, A submarine cable armor clamp characterized in that the above-mentioned loop grooves are formed radially in multiple numbers to correspond to the fastening holes, or are formed in an annular shape that includes all parts corresponding to the fastening holes.
  4. In paragraph 1, A sensing sensor, which is one or more of a vibration sensor, a temperature sensor, and a frequency sensor, is further installed on the inner side of the neck portion of the above flange assembly to detect changes in the physical characteristics of vibration amplitude, heat, and current transmitted from the armor clamp; A submarine cable armor clamp characterized by further connecting a wired/wireless communication device to the above-mentioned detection sensor to transmit measured data to a control system.
  5. In a submarine cable armor clamp described in any one of paragraph 1, 3, or 4, and a management method using a submarine cable and a control system, A sensor detection step of measuring one or more of vibration, heat, or frequency transmitted to the armature clamp using a detection sensor; A measurement data transmission step of transmitting measurement data from a detection sensor to a control system via a wired or wireless communication device; A judgment step of storing the received measurement data in the DB unit and determining whether the measurement data exceeds the allowable range using the control unit; If the allowable range is exceeded, the control unit generates a notification event in a notification event generation step; When a notification event occurs, the control unit combines the location information of the detection sensor that transmitted the measurement data with the measurement data information and outputs it to the management screen of the control system to recognize the necessity of inspection; the inspection notification step is included, The above judgment step includes a prediction information generation step that generates prediction information by inputting accumulated measurement data into an AI model program and calculating a predicted time point for exceeding the allowable range through iterative learning; The above inspection notification step is characterized by combining prediction information with location information of a detection sensor and measurement data information in a submarine cable armor clamp management method.
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Description

AI-Managed Submarine Cable Armor Clamp and Management Method for Enhanced Armor Wire Fixation Strength The present invention relates to an AI-managed submarine cable armor clamp with improved armor wire fixing force and a method for managing the same. More specifically, the invention relates to an armor clamp and a method for managing the same in which the lower body flange constituting the armor clamp and the radially arranged armor wires are fixed so that they do not overlap, thereby allowing the upper compression flange to stably connect and compress the armor wires, and in which a detection sensor is installed on one side of the armor clamp to detect vibrations, heat, or current changes transmitted through the submarine cable, thereby predicting the point at which power loss increases and enabling inspection in advance. A submarine cable is a power line installed to supply power to an island or to transmit power across the seabed from a wind turbine installed offshore. As shown in FIG. 1, the submarine cable (90) is a three-phase cable (94) formed by a cable consisting of a conductor (941), a cable inner sheath layer (942), a shielding layer (943), and a cable outer sheath layer (944). The three-phase cable (94) and the optical cable (95) are sequentially wrapped with an inner sheath (93), an armor wire (92), and an outer sheath (91) to form layers, and the inner sheath and the outer sheath can be formed in multiple layers using various materials. Specifically, an armor wire (92), which is a steel wire measuring 6 to 10 mm, is inserted into the submarine cable (90). The armor wire serves to strengthen the submarine cable and connect to an armor clamp connected to a facility to hold the submarine cable so that it is not dragged toward the sea. In other words, the aforementioned submarine cable is fixed to facilities on islands or towers to connect to or distribute power to islands or wind turbines, thereby enabling power supply through grounding and a stable connection. Since these submarine cables exert significant downward tensile force due to their heavy weight when vertically connected, separate fixing means are required to prevent this force from being transmitted to upper power generation facilities or cable connection points. Typically, a device called an armor clamp or hang-off is used to secure the cable to the facility, thereby blocking the transmission of tensile force from the lower submarine cable to the facility's base structure and preventing the force from being transmitted to connection points such as internal power generation facilities or substations. For example, a submarine cable is inserted through the central axis of a flange assembly coupled to a facility base, the outer sheath of the submarine cable exposed at the top is peeled off to radially bend the exposed armor wire so that it is caught in the flange assembly, and a holder clamp is provided on the inside of the flange assembly to press and fix the central submarine cable, and the catch is achieved by filling with resin. Here, the armor wire is arranged radially between the lower body flange and the upper compression flange of the flange assembly so that it is secured by the bonding force between the lower body flange and the upper compression flange. This is because the two members must be joined when the armor wire is spread radially without overlapping to evenly press the armor wire and increase the support force, thereby preventing the submarine cable from being pulled downward by tensile force. However, if the armor wires partially overlap during the joining process of the lower body flange and the upper compression flange, the pressure applied to other armor wires may not be properly achieved, which can lead to a decrease in support capacity. Therefore, there is the inconvenience of having to keep the radially arranged armor wires spread out so they do not overlap until the lower body flange and the upper compression flange are joined together. Korean Registered Patent No. 10-2535329 (registered on May 17, 2023; hereinafter referred to as 'Patent Document 1') presents a high-strength clamp device for submarine cables. The said Patent Document 1 presents a structure in which a body flange is fixed to a facility, a holder clamp is provided inside the body flange, and a push bolt is inserted through the body flange to press the holder clamp, thereby causing the holder clamp to adhere closely to the outer surface of the submarine cable. That is, since this structure lacks a separate means to maintain the arrangement structure during the process of fixing the radially spread armor wires, the problem of overlapping of the armor wires is still inherent. Korean Registered Patent No. 10-2705991 (registered on September 6, 2024; hereinafter referred to as 'Patent Document 2') presents a high-strength clamp device for submarine cables and a method for constructing the same. The above Patent Document 2 consists of a holder clamp co