Deicing device and deicing method for deicing of iced line

Abstract

The invention discloses a deicing device and a deicing method for deicing an iced line. Deicing of the iced line is completed under the synergistic effect of an opposite clamping mechanism, an electromagnetic oscillation system, a direction controller and a clamping driving mechanism. The deicing efficiency and safety are improved through cooperation of electromagnetic multidirectional oscillation and intelligent control, multidirectional impact is achieved under driving of switching current of a direction controller by means of oscillation cavities and ferromagnetic small balls arranged in a left clamping plate and a right clamping plate, ice layer stress weak areas are monitored in real time in combination with a piezoelectric sensor, accurate directional deicing can be achieved, and the deicing efficiency and safety are improved. The problem of insufficient dead angle coverage is avoided; a hydraulic push rod and connecting rod structure ensures stable opening and closing of clamping and adapts to different line diameters, a multi-direction covering deicing process is simplified through a switch integrated with a handheld rod, the frequency is optimized through dynamic regulation and control to adapt to ice thickness changes, finally, deicing energy consumption is remarkably reduced, deicing time is remarkably shortened, and meanwhile the risk that an ice layer is broken and splashed is reduced.

Description

Technical Field

[0001] This invention relates to the field of power line maintenance equipment technology, and in particular to a de-icing device and method for de-icing icy power lines. Background Technology

[0002] Faults caused by icing on transmission lines have always been one of the most serious natural disasters in the power system. Icing on lines can easily cause electrical accidents such as phase-to-phase flashover and ice flashover. Severe icing will drastically increase the mechanical load on the lines and supporting structures such as towers, causing mechanical accidents such as line breaks and tower collapses, and affecting the safe operation of the power grid.

[0003] Currently, manual de-icing is still the primary method in practical applications. There are two main types of manual de-icing: rope pulling and vibratory de-icing. Rope pulling involves a worker pulling a rope from below the conductor, using the friction between the rope and the conductor to remove the ice. However, this method carries the risk of workers being injured by falling ice, potentially leading to line breakage or other serious injuries. Vibratory de-icing requires climbing ice-covered towers. Both methods pose significant safety risks to workers and represent a critical issue that needs to be addressed for power transmission lines. Existing technologies also utilize mechanical de-icing, which involves installing an overhead ground wire above the iced transmission line and a hammer-type de-icing device on top of it. Powered by a power source and a pulley mechanism, the hammer-type device travels along the overhead ground wire, striking the iced transmission line to remove it. The existing hammer-type de-icing device uses a solid structure for the de-icing rod. During de-icing, the entire de-icing device moves forward on the overhead ground line, and its drive device intermittently drives the de-icing rod to hammer the ice-covered power transmission line. This device cannot effectively remove the ice between the first hammering point and the next hammering point, and the de-icing effect is not good. In addition, mechanical de-icing is also affected by geographical location and surrounding environment. In mountainous areas and other environments, it is difficult to transport the machinery. Moreover, freezing weather is not a long-term phenomenon, and major freezing disasters may only occur every few years. The machinery requires long-term maintenance, which greatly increases maintenance costs.

[0004] Therefore, a de-icing device for de-icing iced lines is proposed to solve the above-mentioned problems. Summary of the Invention In order to solve the above-mentioned problems existing in the prior art, the present invention provides a de-icing device and de-icing method for de-icing iced lines.

[0005] The technical solution of the present invention is as follows: A de-icing device for de-icing icy lines includes opposing clamping mechanisms: comprising a left clamping plate and a right clamping plate, both of which have semi-cylindrical de-icing grooves on their inner walls; Electromagnetic oscillation system: The internal structures of the left and right clamping plates are completely symmetrical and identical. The left clamping plate has symmetrically placed inclined plates at its upper and lower corners, and springs are installed on both the inclined plates and the inner wall of the left clamping plate. The de-icing trough has oscillation chambers on the arc-shaped protruding wall inside the left clamping plate, corresponding one-to-one with the springs. The front ends of the springs extend into the interior of the oscillation chambers, which contain small ferromagnetic balls. Direction controller: includes two electromagnets with opposite magnetic poles set on the outer walls of the left and right clamps, and a direction controller switch set on the hand lever. By switching the current direction, it drives the ferromagnetic ball to strike the cavity wall in multiple directions. Clamping drive mechanism: includes fixed bases, connecting rods and hydraulic push rods located at the bottom of the left and right clamping plates, used to control the opening and closing between the left and right clamping plates.

[0006] Preferably, piezoelectric sensors are evenly distributed on the arc-shaped protruding wall inside the left clamp of the de-icing trough to monitor the distribution of icing stress.

[0007] Preferably, the connecting rod includes segment A, segment B, and segment C. Segment A and segment B are connected at a fixed angle, and segment B and segment C are hinged together. The corner where segment A and segment B connect is movably connected to the push head end of the hydraulic push rod.

[0008] Preferably, the hydraulic actuator further includes a actuator part and a hydraulic drive part, the actuator part telescopically connects the push head end and the hydraulic drive part, and the hydraulic drive part is fixedly installed at the top of the hand handle.

[0009] Preferably, the handheld part at the bottom of the handheld lever is provided with a direction controller switch and a clamping drive switch. The direction controller switch is used to control the direction controller to switch the current direction; the clamping drive switch is used to control the extension and retraction of the hydraulic push rod.

[0010] Preferably, it also includes a safety locking assembly, which includes an infrared rangefinder mounted on the top of the opposite sidewall of the left or right clamping plate for real-time detection of the distance between the clamping plates.

[0011] A de-icing method for de-icing iced power lines, characterized by comprising the following steps: S1. Clamping and positioning: The hydraulic push rod is controlled by pressing the clamping drive switch. Under the drive of the hydraulic push rod, the left and right clamping plates open or close, and the line part to be de-iced is covered by the de-icing groove. S2. Stress Analysis: The ice-covered stress at different locations is obtained using piezoelectric sensors; S3, Directional De-icing: By controlling the direction of the current in the direction controller by controlling the switch of the direction controller, the ferromagnetic ball is driven to repeatedly hit the inner wall of the de-icing tank; S4. Multi-directional coverage: Impacts are performed on multiple parts in multiple directions according to the set position of the oscillation cavity, and the impact duration is greater than or equal to 0.2 seconds.

[0012] This invention offers the following advantages: It enhances de-icing efficiency and safety through the synergistic effect of electromagnetic multi-directional oscillation and intelligent control. The device utilizes oscillation chambers and ferromagnetic balls within the left and right clamping plates, achieving multi-directional impact under the current switching drive of the direction controller. Combined with piezoelectric sensors that monitor weak stress areas in the ice layer in real time, it enables precise directional de-icing, avoiding insufficient coverage in dead zones. The hydraulic push rod and connecting rod structure ensure stable clamping and opening / closing, adapting to different wire diameters. The infrared rangefinder in the safety locking component detects the clamping plate spacing in real time to prevent foreign object intrusion, improving operational safety and providing a stop prompt upon completion of de-icing. The integrated switch on the handheld lever simplifies the multi-directional coverage de-icing process and dynamically adjusts the frequency to adapt to changes in ice thickness, ultimately significantly reducing de-icing energy consumption and time, while also minimizing the risk of ice breakage and splashing. Overall, this design deeply integrates mechanical clamping, electromagnetic drive, and sensor feedback, achieving breakthroughs in ice removal efficiency, user operation convenience, and environmental adaptability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the electromagnetic oscillation system of the present invention.

[0014] The reference numerals in the figure are as follows: 1. Inclined plate; 2. Vibration chamber; 3. Piezoelectric sensor; 4. Electromagnet; 5. Ferromagnetic ball; 6. Right clamping plate; 7. Spring; 8. De-icing trough; 9. Fixing base; 10. Push head end; 11. Section A rod; 12. Section B rod; 13. Section C rod; 14. Push rod part; 15. Hydraulic drive part; 16. Handheld rod; 17. Direction controller switch; 18. Clamping drive switch; 19. Left clamping plate. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] See Figures 1 to 2 A de-icing device for de-icing icy lines includes opposing clamping mechanisms: a left clamping plate 19 and a right clamping plate 6, both of which have semi-cylindrical de-icing grooves 8 on their inner walls. Electromagnetic oscillation system: The internal structures of the left clamping plate 19 and the right clamping plate 6 are completely symmetrical and identical. Sloping plates 1 are symmetrically arranged at the upper and lower corners inside the left clamping plate 19. Springs 7 are provided on both the sloping plates 1 and the inner wall of the left clamping plate 19. The de-icing groove 8 has an oscillation chamber 2 on the arc-shaped protruding wall inside the left clamping plate 19, corresponding one-to-one with the springs 7. The front end of the spring 7 extends into the interior of the oscillation chamber 2, which contains a small ferromagnetic ball 5. Direction controller: includes two electromagnets 4 with opposite magnetic poles set on the outer walls of the left clamp plate 19 and the right clamp plate 6, and a direction controller switch 17 set on the hand lever 16. By switching the current direction, the ferromagnetic ball 5 is driven to strike the cavity wall in multiple directions. Clamping drive mechanism: includes a fixed base 9, a connecting rod and a hydraulic push rod, which are disposed at the bottom of the left clamping plate 19 and the right clamping plate 6, for controlling the opening and closing between the left clamping plate 19 and the right clamping plate 6.

[0017] Furthermore, piezoelectric sensors 3 are evenly distributed on the arc-shaped protruding wall inside the left clamping plate 19 of the de-icing tank 8 to monitor the distribution of ice-covering stress.

[0018] Furthermore, the connecting rod includes section A 11, section B 12 and section C 13. Section A 11 and section B 12 are connected at a fixed angle, and section B 12 and section C 13 are hinged together. The corner where section A 11 and section B 12 are connected is movably connected to the push head end 10 in the hydraulic push rod.

[0019] Furthermore, the hydraulic actuator also includes a actuator part 14 and a hydraulic drive part 15. The actuator part 14 is telescopically connected to the push head end 10 and the hydraulic drive part 15. The hydraulic drive part 15 is fixedly installed at the top of the hand handle 16.

[0020] Furthermore, the handheld part at the bottom of the handheld lever 16 is provided with a direction controller switch 17 and a clamping drive switch 18. The direction controller switch 17 is used to control the electromagnet to switch the current direction; the clamping drive switch 18 is used to control the extension and retraction of the hydraulic push rod.

[0021] Furthermore, it also includes a safety locking assembly, which includes an infrared rangefinder mounted on the top of the opposite sidewall of the left clamp 19 or the right clamp 6 for real-time detection of the distance between the clamps.

[0022] A de-icing method for de-icing iced power lines, characterized by comprising the following steps: S1. Clamping and positioning: The hydraulic push rod is controlled by pressing the clamping drive switch 18. Under the drive of the hydraulic push rod, the left clamping plate 19 and the right clamping plate 6 open or close, and the line part to be de-iced is covered by the de-icing groove 8. S2, Stress Analysis: The icing stress at different locations is obtained using piezoelectric sensor 3; S3, Directional De-icing: By controlling the direction of the current in the direction controller by controlling the pressing direction controller switch 17, the ferromagnetic ball 5 is driven to repeatedly hit the inner wall of the de-icing tank 8. S4. Multi-directional coverage: Impacts are performed on multiple parts in multiple directions according to the set position of the oscillation chamber 2, and the impact duration is greater than or equal to 0.2 seconds.

[0023] Working principle of the invention: In this invention, the icing line is first clamped and positioned. The hydraulic push rod is controlled by pressing the clamping drive switch 18. Under the drive of the hydraulic push rod, the left clamping plate 19 and the right clamping plate 6 open or close, covering the section of the line to be de-iced through the de-icing groove 8. When the clamping drive switch 18 is pressed to control the left clamping plate 19 and the right clamping plate 6 to be in an open / closed state, the hydraulic push rod moves linearly upwards along the handle 16. The hydraulic push rod also includes a push rod part 14 and a hydraulic drive part 15. The push rod part 14 is telescopically connected to the push head end 10 and the hydraulic drive part 15. The moving part 15 is fixedly installed at the top of the handheld rod 16, and the connecting rod includes section A rod 11, section B rod 12 and section C rod 13. Section A rod 11 and section B rod 12 are connected at a fixed angle, and section B rod 12 and section C rod 13 are hinged together. Since the push head end 10 is movably connected to the corner where section A rod 11 and section B rod 12 are connected, it will drive the left clamping plate 19 to separate from the right clamping plate 6. After the ice-covered line to be de-iced is positioned, press the clamping drive switch 18 again to close the two clamping plates, and then start the direction control switch 17 to start the entire electromagnetic vibration system. The de-icing tank 8 has piezoelectric sensors 3 evenly distributed on the arc-shaped protruding wall inside the left clamp 19. These sensors are used to monitor the distribution of ice-covering stress and perform stress analysis. At the same time, the piezoelectric sensors 3 are used to obtain the ice-covering stress in different parts and start directional de-icing. The direction of the current in the direction controller is controlled by the control switch 17 of the pressing direction controller, which in turn drives the ferromagnetic ball 5 to repeatedly hit the inner wall of the de-icing tank 8. The electromagnetic oscillation system includes a left clamping plate 19 and a right clamping plate 6 with completely symmetrical and identical internal structures. An inclined plate 1 is symmetrically positioned at the upper and lower corners of the left clamping plate 19. Springs 7 are installed on both the inclined plate 1 and the inner wall of the left clamping plate 19. An oscillation chamber 2 is provided on the arc-shaped protruding wall inside the left clamping plate 19, corresponding one-to-one with the springs 7. The front end of the spring 7 extends into the interior of the oscillation chamber 2, which contains a small ferromagnetic ball 5. The springs 7 prevent the ferromagnetic ball 5 from falling out of the oscillation chamber 2. Simultaneously, the multi-directionally positioned oscillation chambers 2 can cover the icing line in multiple directions, i.e., impacting multiple parts according to the positions of the oscillation chambers 2, with an impact duration greater than or equal to 0.2 seconds. In addition, a safety interlocking component is provided, which includes an infrared rangefinder installed on the top of the opposite side wall of the left clamp 19 or the right clamp 6 to detect the distance between the clamps in real time. This can prevent foreign objects from entering and improve operational safety, while also providing a prompt to stop when de-icing is completed.

[0024] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A de-icing device for de-icing icing lines, characterized in that: Opposing clamping mechanism: includes a left clamping plate (19) and a right clamping plate (6), both of which have semi-cylindrical de-icing grooves (8) on their inner walls; Electromagnetic oscillation system: The internal structures of the left clamping plate (19) and the right clamping plate (6) are completely symmetrical and identical. The left clamping plate (1) is symmetrically provided with inclined plates (1) at the upper and lower corners. Springs (7) are provided on the inner walls of both the inclined plates (1) and the left clamping plate (19). The de-icing groove (8) has an oscillation cavity (2) on the arc-shaped protruding wall inside the left clamping plate (19), which corresponds one-to-one with the springs (7). The front end of the spring (7) extends into the interior of the oscillation cavity (2), and the oscillation cavity (2) contains a small ferromagnetic ball (5). Direction controller: includes two electromagnets (4) with opposite magnetic poles set on the outer walls of the left clamp (19) and the right clamp (6), and a direction controller switch (17) set on the hand lever (16). By switching the current direction, the ferromagnetic ball (5) is driven to impact the cavity wall in multiple directions. Clamping drive mechanism: includes a fixed seat (9) set at the bottom of the left clamping plate (19) and the right clamping plate (6), a connecting rod and a hydraulic push rod, for controlling the opening and closing between the left clamping plate (19) and the right clamping plate (6).

2. The de-icing device for de-icing iced lines according to claim 1, characterized in that: The de-icing trough (8) has piezoelectric sensors (3) evenly distributed on the arc-shaped protruding wall inside the left clamp (19) to monitor the distribution of icing stress.

3. The de-icing device for de-icing icing lines according to claim 1, characterized in that: The connecting rod includes section A (11), section B (12) and section C (13). Section A (11) and section B (12) are connected at a fixed angle, and section B (12) and section C (13) are hinged together. The corner where section A (11) and section B (12) are connected is movably connected to the push head end (10) of the hydraulic push rod.

4. The de-icing device for de-icing iced lines according to claim 3, characterized in that: The hydraulic push rod also includes a push rod part (14) and a hydraulic drive part (15). The push rod part (14) is telescopically connected to the push head end (10) and the hydraulic drive part (15). The hydraulic drive part (15) is fixedly installed on the top of the hand handle (16).

5. The de-icing device for de-icing iced lines according to claim 4, characterized in that: The handheld part at the bottom of the handheld lever (16) is provided with a direction controller switch (17) and a clamping drive switch (18). The direction controller switch (17) is used to control the direction controller to switch the current direction; the clamping drive switch (18) is used to control the extension and retraction of the hydraulic push rod.

6. The de-icing device for de-icing iced lines according to claim 1, characterized in that: The system also includes a safety locking assembly, which includes an infrared rangefinder mounted on the top of the opposite sidewall of the left clamp (19) or the right clamp (6) for real-time detection of the distance between the clamps.

7. The de-icing method for de-icing iced power lines according to claim 1, characterized in that, Includes the following steps: S1. Clamping and positioning: The hydraulic push rod is controlled by pressing the clamping drive switch (18). Under the drive of the hydraulic push rod, the left clamping plate (19) and the right clamping plate (6) open or close, and the line part to be de-iced is covered by the de-icing groove (8). S2, Stress Analysis: The ice stress at different locations is obtained through piezoelectric sensors (3); S3, Directional De-icing: By controlling the direction of the current in the direction controller through the control of the pressing direction controller switch (17), the ferromagnetic ball (5) is driven to repeatedly hit the inner wall of the de-icing tank (8); S4, Multi-directional coverage: Impacts are performed on multiple parts in multiple directions according to the position of the set oscillation cavity (2), and the impact duration is greater than or equal to 0.2 seconds.

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