Intelligent ice melting system for power transmission line

Abstract

The invention relates to the field of ice melting systems, in particular to an intelligent ice melting system for a power transmission line, which comprises an equipment end and a system end, and is characterized in that the equipment end comprises ice melting equipment arranged on a power transmission cable, the ice melting equipment comprises a mobile vehicle, and the bottom end of the mobile vehicle is fixedly connected with an ice melting treatment box; the front and rear ends of the mobile vehicle are respectively connected with a pre-melting plate and a bunching structure; the system end comprises a processor, and the processor is connected with a control module, a data processing module, a data storage module and a monitoring module; the control module is used for controlling the ice melting equipment to work; the control module is internally provided with a dynamic deicing mode and a fixed deicing mode, so that the ice melting equipment is conveniently controlled to perform dynamic deicing mode and fixed ice melting according to monitoring data on the cable, the working mode of the ice melting equipment is adjusted according to the ice layer condition on the cable in the moving process, ice melting is performed on a thin ice area in the moving process, and the ice melting efficiency is improved. Fixed deicing is automatically carried out at the thick ice layer; in this way, high-efficiency ice melting work is carried out, and it is guaranteed that the ice layer on the cable is fully and rapidly processed.

Description

Technical Field

[0001] The present invention relates to an intelligent ice-melting system for power transmission lines, and in particular to an intelligent ice-melting system for power transmission lines applied in the field of ice-melting systems. Background Art

[0002] Transmission lines face the problem of icing in winter, which may lead to serious consequences such as line breakage and power outage. Therefore, ice melting technology is crucial to ensure power supply. At present, the main transmission line ice melting technologies include thermal ice melting, mechanical deicing, ultrasonic deicing and electric heat tracing ice melting.

[0003] In actual power systems, the application effects and economic costs of various ice-melting technologies vary significantly. Thermal ice-melting and electric heat-tracing ice-melting technologies have relatively small environmental impacts, but have high economic costs. Mechanical de-icing and ultrasonic de-icing technologies have advantages in efficiency and environmental protection, but may cause damage to equipment or the technology is not yet fully mature.

[0004] The specification of Chinese invention patent CN114050538B discloses a transmission line de-icing system, which includes an execution end, including a fixing unit, an de-icing unit, and a monitoring unit; and a processing end, including a receiving unit and a control unit; the invention can automatically monitor the transmission line, and related problems of the transmission line can be transmitted to a remote terminal, eliminating the danger and trouble of manual de-icing, and can effectively solve the problem of icing of the transmission line in severe weather; the routing unit used in the present invention can cross the spacer bars on the transmission line, and the inspection and de-icing distance can be greatly extended.

[0005] The specification of Chinese invention patent CN109149491B discloses a power transmission line de-icing device, which belongs to the technical field of power transmission line maintenance, and includes a mobile tool vehicle, a supporting mechanism, and an de-icing mechanism; the invention can fully cover the line and completely melt the ice, and also provides a de-icing agent suitable for the de-icing device, which has a low freezing point, a fast de-icing rate in a short time, a significant de-icing effect, and little damage to carbon steel and plants.

[0006] The existing intelligent ice-melting system is not convenient to adjust the operation of the ice-melting equipment according to the ice condition on the transmission cables. Most of the ice-melting equipment is manually operated by technicians or operates independently, with low ice-melting efficiency and large losses. Summary of the invention

[0007] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the existing intelligent ice-melting system is inconvenient to adjust the operation of the ice-melting equipment according to the ice condition on the transmission cable. When the ice-melting equipment arrives, technicians operate it manually or independently, resulting in low ice-melting efficiency and large losses.

[0008] In order to solve the above problems, the present invention provides an intelligent ice melting system for power transmission lines, including a device end and a system end. The device end includes an ice melting device arranged on the power transmission cable. The ice melting device includes a mobile vehicle. The bottom end of the mobile vehicle is fixedly connected to an ice melting treatment box. The front and rear ends of the mobile vehicle are respectively connected to a pre-melting plate and a wire bundle structure. The pre-melting plate includes a fixed plate, both ends of which are plugged with movable frames, the lower end of the movable frame is rotatably connected to a preheating guide wheel matching the power transmission cable, and the movable frame is fixedly connected to an electric heater matching the preheating guide wheel; The ice melting treatment box includes a shell, a control box is fixedly connected in the shell, a pair of ice melting structures are arranged in the shell, the ice melting structure includes a movable platform, an electric lifting rod is fixedly connected to the movable platform, an ice melting plate is fixedly connected to the movable end of the electric lifting rod, a guide groove is opened on the ice melting plate, and an electric heating mesh plate covering the guide groove is fixedly connected to the ice melting plate; The system end includes a processor, to which a control module, a data processing module, a data storage module and a monitoring module are connected; The control module is used to control the operation of the ice-melting equipment; the control module is provided with a dynamic de-icing mode and a fixed de-icing mode. When the dynamic de-icing mode is in operation, the pre-melting plate and the ice-melting structure heat and melt the ice on the transmission cable while the mobile vehicle is moving; when the fixed de-icing mode is in operation, the mobile vehicle is fixed on the transmission cable, and then controls multiple ice-melting structures to centrally heat and vibrate the ice layer on the transmission cable to melt the ice; The monitoring module is used to collect monitoring data on the transmission cable. The transmission cable is provided with a plurality of first pressure sensors and temperature sensors connected to the monitoring module signals. The monitoring data includes ice thickness and ambient temperature.

[0009] In the above-mentioned intelligent ice-melting system for power transmission lines, the state of ice on the power transmission cables is monitored in real time, and ice-melting equipment is set to perform ice-melting work according to the state of ice.

[0010] As a further improvement of the present application, a pair of axles are installed on the mobile vehicle, both ends of the axles are connected with anti-skid rollers through electric telescopic rods, and an electric motor for driving the axles to rotate is installed in the mobile vehicle.

[0011] As a further improvement of the present application, the preheating guide wheels are arranged in two pairs, each pair of preheating guide wheels is arranged on both sides of the transmission cable, the preheating guide wheels include a rotating shaft slidably connected to the movable frame, and an elastic telescopic rod is connected between the top ends of the pair of rotating shafts.

[0012] As a further improvement of the present application, a partition is installed in the shell, the ice melting plate is located above the partition, a long slot hole matching the electric lifting rod is provided on the partition, a waterproof baffle ring is fixedly connected to the inner wall of the long slot hole, and a leakage hole matching the upper surface of the partition is opened on the side wall of the shell.

[0013] As another improvement of the present application, the wiring harness structure includes a mounting frame, to which a pair of wire bobbins are fixedly connected, the wire bobbins are provided with conical through holes matching the power transmission cables, one end of the conical through hole close to the moving vehicle is movably connected to a rubber ring, the other end of the conical through hole is fixedly connected to a brush ring, and the rubber ring is connected to a second pressure sensor.

[0014] As another improved supplement of the present application, a vibration cone is inserted into the top end of the electric lifting rod, an electromagnet matching the vibration cone is installed in the electric lifting rod, and a compression spring is connected between the vibration cone and the electromagnet.

[0015] As another improved supplement of the present application, a pressure sensing line is provided on the transmission cable, a plurality of pressure monitoring nodes are provided on the pressure sensing line, the monitoring range of the pressure monitoring node matches the length of the ice melting structure, and the positioning information of each pressure monitoring node is provided in the data storage module.

[0016] As another improvement of the present application, when the dynamic working mode is working, when the mobile vehicle moves forward, when the pressure sensor on the rubber ring detects that the pressure exceeds the set value, the mobile vehicle resets and moves the set distance, and then is set to a fixed de-icing mode, so that the ice-melting structure performs a centralized ice-melting treatment on the transmission cable area that squeezes the rubber ring. After the ice-melting treatment, the dynamic working mode is restored.

[0017] In summary, this solution is convenient for controlling the dynamic de-icing mode and fixed de-icing of the ice melting equipment according to the monitoring data on the cable, so that the ice melting equipment adjusts the working mode according to the ice layer condition on the cable during movement, melts the ice in the thin ice area during movement, and automatically performs fixed de-icing in the thick ice layer; in this way, efficient de-icing work is carried out to ensure that the ice layer on the cable is fully and quickly processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a block diagram of the intelligent ice melting system of the first and second implementation modes of this application; Figure 2 A three-dimensional diagram of the ice melting device according to the first and second embodiments of the present application; Figure 3 This is a cross-sectional view of the ice melting structure of the first and second embodiments of the present application; Figure 4 for Figure 3 The structural diagram at A in the middle; Figure 5 This is a cross-sectional view of the ice melting device according to the first and second embodiments of the present application; Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure at B in the middle; Figure 7 for Figure 5Schematic diagram of the cross-sectional structure at point C in the middle.

[0019] Description of the numbers in the figure: 1 transmission cable, 2 mobile vehicle, 3 ice-melting treatment box, 31 shell, 32 control box, 4 pre-melting plate, 41 fixed plate, 42 movable frame, 43 preheating guide wheel, 44 electric heater, 5 wire bundle structure, 51 mounting frame, 52 threading barrel, 53 rubber ring, 54 brush ring, 6 ice-melting structure, 61 movable platform, 62 electric lifting rod, 621 vibrating cone, 622 electromagnet, 63 ice-melting plate, 64 electric heating mesh plate. DETAILED DESCRIPTION

[0020] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0021] The first implementation method: Figure 1-6 It is shown that an intelligent ice-melting system for power transmission lines includes an equipment end and a system end. The equipment end includes an ice-melting device arranged on a power transmission cable 1. The ice-melting device includes a mobile vehicle 2. An ice-melting treatment box 3 is fixedly connected to the bottom end of the mobile vehicle 2. A pre-melting plate 4 and a wire harness structure 5 are respectively connected to the front and rear ends of the mobile vehicle 2. A pair of axles are installed on the mobile vehicle 2. Anti-skid rollers are connected to both ends of the axles through electric telescopic rods. A motor for driving the axles to rotate is installed in the mobile vehicle 2.

[0022] The pre-melting plate 4 includes a fixed plate 41, both ends of the fixed plate 41 are plugged with a movable frame 42, the lower end of the movable frame 42 is rotatably connected to a preheating guide wheel 43 matching the power transmission cable 1, and the movable frame 42 is fixedly connected to an electric heater 44 matching the preheating guide wheel 43; the electric heater 44 is used to heat the preheating guide wheel 43, and the electric heater 44 adopts the existing technology, and is installed by a person skilled in the art by selecting a suitable electric heating device; The preheating guide wheels 43 are arranged in two pairs, and each pair of preheating guide wheels 43 is arranged on both sides of the power transmission cable 1. The preheating guide wheels 43 include a rotating shaft slidably connected to the movable frame 42, and an elastic telescopic rod is connected between the top ends of the pair of rotating shafts. A heat-conducting rod connected to the electric heater 44 is passed through the rotating shaft, and a heat-conducting film connected to the heat-conducting rod is laid on the surface of the preheating guide wheels 43; the elastic telescopic rod is used to promote the pair of preheating guide wheels 43 to approach each other, so as to ensure that the pair of preheating guide wheels 43 are attached to the power transmission cable 1; The ice melting treatment box 3 includes a shell 31, a control box 32 is fixedly connected to the shell 31, the control box 32 can be externally connected to a power supply line, and a battery and a balancing device are arranged in the control box 32. The balancing device is used to maintain the stability of the ice melting device when it moves along the power transmission cable 1. A person skilled in the art uses a suitable balancing device to install it, such as a gyroscope and a counterweight device; A pair of ice melting structures 6 are arranged in the housing 31. The ice melting structures 6 include a movable platform 61. An electric guide rail matching the movable platform 61 is installed in the housing 31. The movable platform 61 can be driven to move by the electric guide rail to ensure that the ice melting structures 6 match the positions of the power transmission cable 1. The movable platform 61 is fixedly connected with an electric lifting rod 62, and the movable end of the electric lifting rod 62 is fixedly connected with an ice melting plate 63. The ice melting plate 63 is provided with a guide groove, one side end of the guide groove is opened toward the outside of the shell 31, and the other side end of the guide groove is closed. The ice melting plate 63 is fixedly connected with an electric heating mesh plate 64 covering the guide groove; the electric heating mesh plate 64 is an electric heating plate with a plurality of water permeable holes; A partition is installed in the shell 31, and the ice melting plate 63 is located above the partition. A long slot hole matching the electric lifting rod 62 is provided on the partition. A waterproof baffle ring is fixedly connected to the inner wall of the long slot hole. A water leakage hole matching the upper surface of the partition is opened on the side wall of the shell 31. A vibration cone 621 is inserted into the top of the electric lifting rod 62 , a permanent magnet is installed in the vibration cone 621 , an electromagnet 622 matching the vibration cone 621 is installed in the electric lifting rod 62 , and a compression spring is connected between the vibration cone 621 and the electromagnet 622 .

[0023] When the electromagnet 622 is working, it attracts the vibration cone 621. After the electromagnet 622 is turned off, the vibration cone 621 is reset under the action of the compression spring, so that the vibration cone 621 impacts the ice layer. By starting the electromagnet 622 intermittently, the vibration cone 621 vibrates the ice layer, thereby accelerating the melting of the ice layer. The system end includes a processor, to which a control module, a data processing module, a data storage module and a monitoring module are connected; The control module is used to control the operation of the ice-melting equipment; the control module is provided with a dynamic de-icing mode and a fixed de-icing mode. When the dynamic de-icing mode is in operation, the pre-melting plate 4 and the ice-melting structure 6 heat and melt the ice on the transmission cable 1 during the movement of the mobile vehicle 2; when the fixed de-icing mode is in operation, the mobile vehicle 2 is fixed on the transmission cable 1, and then controls multiple ice-melting structures 6 to centrally heat and vibrate the ice layer on the transmission cable 1 to melt the ice; The monitoring module is used to collect monitoring data on the transmission cable 1. The transmission cable 1 is provided with a plurality of first pressure sensors and temperature sensors connected to the monitoring module signals. The monitoring data includes ice thickness and ambient temperature.

[0024] The transmission cable 1 is provided with a pressure sensing line, and a plurality of pressure monitoring nodes are provided on the pressure sensing line. The monitoring range of the pressure monitoring node matches the length of the ice melting structure 6. The positioning information of each pressure monitoring node is provided in the data storage module. The pressure value of the pressure monitoring nodes of the same specification is used to judge the thickness of the ice layer at each point on the cable. In order to set the operation of the ice melting device, the ice melting device is set to an unfixed deicing mode for deicing at the thick ice layer. When this solution is working, when it is detected that the ice thickness on the transmission cable 1 exceeds the set value A; The ice melting device is started and moved along the power transmission cable 1 to the area where ice melting is required by the moving vehicle 2 .

[0025] When the mobile vehicle 2 arrives near the designated position, the processor activates the dynamic deicing mode through the control module. In the dynamic deicing mode, the electric heater 44 on the pre-melting plate 4 works to initially melt the ice layer on the transmission cable 1, and then the transmission cable 1 is heated by the ice melting structure 6 to further heat and melt the ice layer. At the same time, the mobile vehicle 2 moves at a set speed to ensure that the ice layer near the designated position of the transmission cable 1 is melted evenly, which is suitable for the treatment of thin ice layers. When the ice thickness is detected to be greater than the set value B, the surface ice layer is too thick, and the ice melting device is set to a fixed de-icing mode when located at this position; In the fixed de-icing mode, the mobile vehicle 2 stops moving, and the electric lifting rod 62 drives the ice melting plate 63 to rise, so that the ice melting plate 63 is close to the ice layer. At this time, the electric heating grid plate 64 is turned on to heat the ice layer. During the heating process, the melted water is discharged to the outside of the ice melting treatment box 3 through the diversion groove; During the heating process, the vibrating cone 621 can also be used to vibrate the ice layer to accelerate the melting of the ice layer; Multiple ice melting structures 6 will centrally heat and vibrate the ice layer on the transmission cable 1; the monitoring module collects data from the pressure monitoring node in real time to evaluate the ice melting effect and the change in ice thickness; when the ice thickness drops below the set value, the mobile vehicle 2 is restored to move; After the ice melting is completed, the processor controls the mobile vehicle 2 to return to the starting position to prepare for the next ice melting task.

[0026] Second implementation method: Figure 1-7As shown, the wiring harness structure 5 includes a mounting frame 51, to which a pair of wire barrels 52 are fixedly connected, and a conical through hole matching the transmission cable 1 is opened on the wire barrel 52, and a rubber ring 53 is movably connected to one end of the conical through hole close to the mobile vehicle 2, and the ratio of the inner diameter of the rubber ring 53 to the outer diameter of the transmission cable 1 is 1.2:1-1.5:1, and a brush ring 54 is fixedly connected to the other end of the conical through hole, and a second pressure sensor is connected to the rubber ring 53. After the ice-melting equipment processes the ice layer on the transmission cable 1, when there is still a thick ice layer on the transmission cable 1, when the ice-melting equipment moves, the rubber ring 53 will be squeezed by the ice layer, and the second pressure sensor is under pressure. When the monitoring module recognizes that the pressure signal is greater than the set value, it recognizes that the ice layer on the cable has not been fully processed.

[0027] When the dynamic working mode is working, when the mobile vehicle 2 moves forward, when the pressure sensor on the rubber ring 53 detects that the pressure exceeds the set value, the mobile vehicle 2 resets and moves the set distance, and then is set to the fixed de-icing mode, so that the ice-melting structure 6 performs a centralized ice-melting treatment on the area of ​​the power transmission cable 1 that squeezes the rubber ring 53. After the ice-melting treatment, the dynamic working mode is restored.

[0028] This embodiment makes it easy to fully process the ice layer on the transmission cable 1. The rubber ring 53 and the second pressure sensor are used to detect whether the ice layer is fully processed. If the ice layer is not fully processed, the mobile vehicle 2 will be driven to reset and the ice layer at the position will be melted again to ensure that the ice layer is fully processed. This solution makes it easy to control the ice-melting equipment to perform dynamic de-icing mode and fixed de-icing according to the monitoring data on the cable, so that the ice-melting equipment can adjust the working mode according to the ice layer condition on the cable during movement, melt the ice in the thin ice area during movement, and automatically perform fixed de-icing in the thick ice layer; in this way, efficient de-icing work can be carried out to ensure that the ice layer on the cable is fully and quickly processed.

[0029] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. An intelligent ice melting system for a power transmission line, comprising a device end and a system end, wherein the device end comprises an ice melting device arranged on a power transmission cable (1), characterized in that: The ice-melting equipment comprises a mobile vehicle (2), the bottom end of the mobile vehicle (2) is fixedly connected to an ice-melting treatment box (3), and the front and rear ends of the mobile vehicle (2) are respectively connected to a pre-melting plate (4) and a wire harness structure (5); The pre-melting plate (4) comprises a fixed plate (41), both ends of the fixed plate (41) are plugged with a movable frame (42), the lower end of the movable frame (42) is rotatably connected to a preheating guide wheel (43) matching the power transmission cable (1), and the movable frame (42) is fixedly connected to an electric heater (44) matching the preheating guide wheel (43); The ice-melting treatment box (3) comprises a shell (31), a control box (32) is fixedly connected to the shell (31), a pair of ice-melting structures (6) are arranged in the shell (31), the ice-melting structures (6) comprise a movable platform (61), an electric lifting rod (62) is fixedly connected to the movable platform (61), an ice-melting plate (63) is fixedly connected to the movable end of the electric lifting rod (62), a guide groove is provided on the ice-melting plate (63), and an electric heating mesh plate (64) covering the guide groove is fixedly connected to the ice-melting plate (63); The system end includes a processor, and the processor is connected to a control module, a data processing module, a data storage module and a monitoring module; The control module is used to control the operation of the ice-melting equipment; a dynamic de-icing mode and a fixed de-icing mode are arranged in the control module; when the dynamic de-icing mode is in operation, the pre-melting plate (4) and the ice-melting structure (6) heat and melt the ice on the power transmission cable (1) during the movement of the mobile vehicle (2); when the fixed de-icing mode is in operation, the mobile vehicle (2) is fixed on the power transmission cable (1), and then controls the multiple ice-melting structures (6) to centrally heat and vibrate the ice layer on the power transmission cable (1) to melt the ice; The monitoring module is used to collect monitoring data on the transmission cable (1); the transmission cable (1) is provided with a plurality of first pressure sensors and temperature sensors which are signal-connected to the monitoring module; the monitoring data includes ice thickness and ambient temperature.

2. The intelligent ice melting system for power transmission lines according to claim 1, characterized in that: A pair of axles are installed on the mobile vehicle (2), and both ends of the axles are connected to anti-skid rollers via electric telescopic rods. An electric motor for driving the axles to rotate is installed in the mobile vehicle (2).

3. The intelligent ice melting system for power transmission lines according to claim 1, characterized in that: The preheating guide wheels (43) are arranged in two pairs, each pair of the preheating guide wheels (43) being arranged on both sides of the power transmission cable (1), the preheating guide wheels (43) comprising a rotating shaft slidably connected to the movable frame (42), and an elastic telescopic rod being connected between the top ends of the pair of rotating shafts.

4. The intelligent ice melting system for power transmission lines according to claim 1, characterized in that: A partition is installed in the shell (31), the ice melting plate (63) is located above the partition, a long slot hole matching the electric lifting rod (62) is provided at the beginning of the partition, a waterproof baffle ring is fixedly connected to the inner wall of the long slot hole, and a water leakage hole matching the upper surface of the partition is opened on the side wall of the shell (31).

5. The intelligent ice melting system for power transmission lines according to claim 1, characterized in that: The cable harness structure (5) comprises a mounting frame (51), a pair of wire threading barrels (52) being fixedly connected to the mounting frame (51), the wire threading barrels (52) being provided with conical through holes matching the power transmission cables (1), a rubber ring (53) being movably connected to one end of the conical through hole close to the moving vehicle (2), a brush ring (54) being fixedly connected to the other end of the conical through hole, and a second pressure sensor being connected to the rubber ring (53).

6. The intelligent ice melting system for power transmission lines according to claim 1, characterized in that: A vibration cone (6) is inserted into the top end of the electric lifting rod (62), an electromagnet (6) matching the vibration cone (6) is installed inside the electric lifting rod (62), and a compression spring is connected between the vibration cone (6) and the electromagnet (6).

7. The intelligent ice melting system for power transmission lines according to claim 1, characterized in that: The power transmission cable (1) is provided with a pressure sensing line, and a plurality of pressure monitoring nodes are provided on the pressure sensing line. The monitoring range of the pressure monitoring nodes matches the length of the ice melting structure (6), and the positioning information of each pressure monitoring node is provided in the data storage module.

8. The intelligent ice melting system for power transmission lines according to claim 5, characterized in that: When the dynamic working mode is in operation, when the moving vehicle (2) moves forward, when the pressure sensor on the rubber ring (53) detects that the pressure exceeds a set value, the moving vehicle (2) resets and moves the set distance, and then is set to a fixed deicing mode, so that the ice melting structure (6) performs a centralized ice melting process on the area of ​​the power transmission cable (1) that squeezes the rubber ring (53), and after the ice melting process, the dynamic working mode is restored.

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