Insulator de-icing device

Abstract

The application provides an insulator deicing device and belongs to the technical field of electric power operation and maintenance. The structure comprises: a heat preservation sleeve is wrapped outside the pipeline, a partition plate is transversely intercepted in the box body, the space above the partition plate is connected to a jet pump through a jet device, an electric heating plate is arranged in the liquid tank, a transverse positive and negative toothed screw rod is rotatably connected to the liquid tank, the transverse positive and negative toothed screw rod is drivingly connected to an adjusting motor, a sliding block is connected to each tooth of the positive tooth and the negative tooth of the transverse positive and negative toothed screw rod, a frame body is connected to the sliding block, a clamping plate is slidingly matched with the frame body and is provided with a shock absorber. The application adds a blocking structure with counterweight and adjustability in the liquid tank, thereby avoiding the influence of fluid inertia on the stability of the machine body; meanwhile, the liquid tank is carried on the lifting adjusting mechanism, so that the moment formed by the self weight of the liquid tank on the machine body can be controlled. In addition, the application adds heating and heat preservation components to the liquid tank and the pipeline, which is beneficial to maintaining the working temperature of the heat medium.

Description

Technical Field

[0001] This invention relates to the field of power operation and maintenance technology, specifically to an insulator de-icing device. Background Technology

[0002] In cold regions, when the temperature is near or slightly below 0°C and the air humidity is high, supercooled water droplets in the atmosphere will quickly freeze into ice upon contact with the insulator surface, which is below the freezing point. In addition, freezing rain and rime are also major causes of severe icing on insulators; rime and wet snow often also contribute to icing. In high-altitude mountainous areas, windy areas, and areas where cold and warm air masses converge, sustained low temperatures, high humidity, and strong winds are more likely to occur, promoting rapid icing development.

[0003] Ice accumulation on insulator surfaces significantly reduces their insulation performance, leading to various electrical and mechanical faults. The main hazards include both electrical and mechanical risks. After icing, ice or meltwater bridges the insulator skirts, creating a conductive path and causing a sharp decrease in insulation strength, resulting in flashover tripping at operating voltage. Furthermore, icing reduces the surface resistance of the insulator, exacerbating partial discharge and, in severe cases, developing into a full-string flashover, causing grounding tripping. The continuous arcing during flashover can burn the insulator surface, reducing its long-term insulation capacity. Icing increases the weight of insulator strings and towers, especially in rime or mixed rime conditions, potentially causing tower tilting, collapse, or hardware deformation. Uneven icing, under wind conditions, can cause conductor galloping, or asynchronous ice removal during melting can cause conductor jumping, leading to phase-to-phase short circuits, line breaks, or tower damage. Ice flashover or mechanical faults can cause transmission line tripping, resulting in large-scale power outages and affecting residential and industrial power supply. Ice flashover often occurs concurrently with conductor icing and galloping, exacerbating grid risks.

[0004] Insulator de-icing is crucial for ensuring the safe operation of power systems, especially during freezing rain and snow. Current technologies primarily employ mechanical de-icing methods, such as crushing and knocking, to remove ice. During operation, maintenance personnel wear insulated gloves and safety helmets, using a several-meter-long insulated operating rod on the ground or inside a boom truck, along with metal hooks, de-icing hammers, and de-icing hoes to remove ice from the insulator surface and between the skirts. Alternatively, in some operating environments, de-icing devices can be mounted on the conductors and dragged by ground personnel using ropes to crush and remove ice. These methods are not only inefficient and lack automation but also prone to damaging the insulators. In recent years, hot water jet de-icing technology has gradually developed. This technology overcomes the mechanical damage to insulators, improves de-icing efficiency, and, moreover, has lower reaction force, making it promising for use with robots, drones, and other equipment. However, this technology is highly dependent on the heat medium and requires equipment such as robots and drones to operate with a large liquid volume, which places higher demands on the stability of the machine. Moreover, how to solve the problem of heat medium insulation under airborne conditions is also one of the key factors restricting this technology. Summary of the Invention

[0005] The present invention aims to address the technical deficiencies of the prior art by providing an insulator de-icing device to solve the technical problems of low efficiency, low automation, and easy damage to insulators caused by conventional de-icing methods.

[0006] Another technical problem that this invention aims to solve is that current hot water jet-based de-icing technology is difficult to integrate into robots, drones, and other equipment due to issues such as liquid stability and heat preservation.

[0007] To achieve the above technical objectives, the present invention adopts the following technical solution:

[0008] An insulator de-icing device includes a body, a support block, a mounting plate, a vertical plate, a slide groove, a guide rod, a lead screw slide, a liquid tank, a lifting motor, a longitudinal lead screw, a liquid supply pipe, an insulation sleeve, a manifold, a heating element, an adjusting motor, a transverse positive and negative threaded lead screw, a slider, a frame, a clamping plate, a shock absorber, a suspension pipe, a box, a partition plate, an ejector, and a jet pump. The support block is fixedly connected to the body, the mounting plate is fixedly connected to the support block, the vertical plate is fixedly connected to the mounting plate, and a liquid tank is fixedly connected to the vertical plate. Two other liquid tanks are located on either side of the vertical plate and are fixedly connected to two lead screw slides. The slide groove, guide rod, and lifting motor are fixedly connected to the mounting plate, and the longitudinal lead screw is rotatably connected to the mounting plate, located in the slide groove. Inside, the lead screw slide is threadedly connected to the longitudinal lead screw, and the guide rod passes through the lead screw slide and slides with it. The lifting motor is driven by the longitudinal lead screw. The liquid tank is connected to the manifold through the liquid supply pipe, and the manifold is connected to the bottom of the box through the suspension pipe. The liquid supply pipe, manifold, and suspension pipe are covered with an insulation sleeve. A partition plate is transversely intercepted in the box. A jet pump is installed in the space below the partition plate, and the space above the partition plate is connected to the jet pump and the jet injector. An electric heating element is installed in the liquid tank. A transverse positive and negative threaded lead screw is rotatably connected in the liquid tank. The transverse positive and negative threaded lead screw is driven by the adjusting motor. A slider is threaded onto the positive and negative threads of the transverse positive and negative threaded lead screw. A frame is connected to the slider. The clamping plate slides with the frame. A shock absorber is installed between the frame and the clamping plate.

[0009] Preferably, the two lead screw slides are respectively threaded onto two longitudinal lead screws, one of which is connected to the lifting motor for transmission. Synchronous pulleys are fixedly connected to both longitudinal lead screws, and a synchronous belt is wound between the two synchronous pulleys.

[0010] Preferably, the clamping plate has an internal layer, in which a support plate is slidably fitted. The clamping plate has several first holes, and the support plate has several second holes. A bracket is fixedly connected to the clamping plate, and a third lead screw is rotatably connected to the bracket. A lead screw nut is threaded onto the third lead screw, and the lead screw nut is fixedly connected to the support plate. A gear is fixedly attached to the third lead screw, and a support bar is fixedly attached to the clamping plate. The support bar has protruding teeth that engage with the gear.

[0011] Preferably, the second hole is a variable diameter hole, and adjacent second holes face opposite directions.

[0012] Preferably, a cavity is left between the heating element and the inner wall of the liquid tank, and the cavity is filled with heat-insulating material.

[0013] Preferably, the body is a drone or a cable-crawling robot.

[0014] Preferably, the support plate has a transverse protrusion, and the inner wall of the clamping plate has a transverse slide, with the protrusion slidingly engaging with the slide.

[0015] Preferably, the liquid tank is equipped with a temperature sensor and a temperature controller, which is electrically connected to the temperature sensor and the heating element respectively.

[0016] Preferably, a smooth section is provided between the forward and reverse sections of the transverse forward and reverse threaded screw.

[0017] Preferably, a liquid level sensor is installed in the liquid tank.

[0018] In the above technical solution, the machine body serves as the transport device, which can be a drone with a large payload or a cable-crawling robot used to transport the liquid tank to the vicinity of the iced insulator to perform the spraying action. Support blocks support the mounting plates, which in turn support components such as the upright plate, slide rails, guide rods, and lifting motor. The upright plate supports the central liquid tank, which is positioned below the machine body's center of gravity. The other two liquid tanks are positioned on either side of the central tank. When the machine body turns, the gravitational torque of the liquid tanks on both sides can be controlled by adjusting their height, which helps maintain machine stability. To achieve height adjustment of the liquid tanks on both sides, this invention mounts them on a lead screw slide. Since the lead screw slide is threaded onto a longitudinal lead screw, when the lifting motor drives the longitudinal lead screw to rotate, it can drive the lead screw slide to move upwards or downwards. In this lifting mechanism, the slide rails and guide rods guide and limit the upward and downward movement of the lead screw slide. The supply pipe, manifold, and suspension pipe are used to introduce the heat medium into the upper space of the housing. The partition plate separates the internal space of the housing. The jet pump located at the bottom pumps the heat medium out and sprays it from the jet injector onto the surface of the insulator to melt ice. The electric heating element is used to heat and maintain the temperature of the heat medium in the liquid tank, and the insulation jacket is used to insulate the pipeline.

[0019] To mitigate the impact of irregular fluid movement within the liquid tank on the machine's stability, this invention adds a clamping plate with a first hole inside the liquid tank. This first hole ensures connectivity. When the fluid in the liquid tank shifts to one side due to inertia or other factors, the clamping plate blocks the fluid's impact force, preventing excessive fluid displacement from affecting the machine's stability. To further buffer the impact force, the clamping plate is slidably mounted on the frame, and a shock absorber is added, effectively cushioning the fluid's impact force. Furthermore, the two frames are mounted on two sliders. Since the two sliders are threaded onto the positive and negative sections of a transverse threaded screw, the distance between the two clamping plates can be adjusted when the motor drives the transverse threaded screw to rotate.

[0020] In a preferred embodiment, the present invention adds a support plate to the clamping plate, and the support plate has a second hole to ensure connectivity. Since the lead screw nut fixed to the support plate is threaded onto a third lead screw, and the gear at the end of the third lead screw meshes with the clamping plate through a support bar, when the clamping plate slides, the support plate can be driven to slide within the clamping plate under the transmission of the gear, thereby using the weight of the support plate itself as a counterweight to enhance the buffering effect on the movement of the clamping plate.

[0021] This invention provides an insulator de-icing device. The device utilizes hot water jet technology to melt ice buildup on insulators, and improves upon this by modifying the liquid-filling tank structure. Specifically, the invention adds a counterweight and adjustable blocking structure to the liquid-filling tank to avoid the influence of fluid inertia on the stability of the device. Simultaneously, by mounting the liquid-filling tank on a lifting and adjusting mechanism, the torque exerted by its own weight on the device can be controlled. Furthermore, the invention adds heating and insulation components to the liquid-filling tank and pipelines, which helps maintain the operating temperature of the heat medium. Attached Figure Description

[0022] Figure 1 This is an external diagram of the present invention;

[0023] Figure 2 This is an internal diagram of the present invention;

[0024] Figure 3 This is a partial internal view of the present invention;

[0025] Figure 4 This is an internal view of the liquid tank;

[0026] Figure 5 It is a partial 3D view of the structure, such as the clamping plate;

[0027] Figure 6 It is a partial 3D view of the supporting plate and other structures;

[0028] Figure 7 It is a 3D view of the clamping plate and support plate before assembly;

[0029] Figure 8 This is an internal view of the box;

[0030] In the picture:

[0031] 1. Body 2. Support block 3. Mounting plate 4. Vertical board 5. Slide 6. Guide rod 7. Lead screw slide 8. Liquid filling tank 9. Lifting motor 10. Longitudinal lead screw 11. Synchronous Belt Pulley 12. Synchronous belt 13. Liquid supply pipe 14. Insulation sleeve 15. Manifold 16. Electric heating element 17. Adjust the motor 18. Horizontal forward and reverse threaded screws 19. Slider 20. Frame 21. Plywood 22. Shock absorber 23. Support plate 24. First hole 25. Second hole 26. Stent 27. Third lead screw 28. Lead screw nut 29. Gear 30. Support bar 31. Suspension pipe 32. Box body 33. Separator 34. Ejector 35. Jet pump. Detailed Implementation

[0032] The specific embodiments of the present invention will be described in detail below. To avoid excessive and unnecessary detail, well-known structures or functions will not be described in detail in the following embodiments. The approximate language used in the following embodiments is for quantitative purposes, indicating that a certain degree of variation in quantity is permissible without changing the basic function. Unless otherwise defined, the technical and scientific terms used in the following embodiments have the same meaning as commonly understood by those skilled in the art to which this invention pertains.

[0033] An insulator de-icing device, such as Figures 1-8 As shown, the system includes a body 1, a support block 2, a mounting plate 3, a vertical plate 4, a slide 5, a guide rod 6, a lead screw slide 7, a liquid tank 8, a lifting motor 9, a longitudinal lead screw 10, a liquid supply pipe 13, an insulation sleeve 14, a manifold 15, a heating element 16, an adjusting motor 17, a transverse forward and reverse threaded lead screw 18, a slider 19, a frame 20, a clamping plate 21, a shock absorber 22, a suspension pipe 31, a box 32, a partition plate 33, an ejector 34, and a jet pump 35. The components are fixedly connected to the body 1. A support block 2 is attached, and a mounting plate 3 is fixedly connected to the support block 2. A vertical plate 4 is fixedly connected to the mounting plate 3, and a liquid tank 8 is fixedly connected to the vertical plate 4. Two other liquid tanks 8 are located on either side of the vertical plate 4, and the other two liquid tanks 8 are fixedly connected to two lead screw slides 7. A slide groove 5, a guide rod 6, and a lifting motor 9 are fixedly connected to the mounting plate 3. A longitudinal lead screw 10 is rotatably connected to the mounting plate 3, and the longitudinal lead screw 10 is located inside the slide groove 5. The lead screw slides 7... The guide rod 6 is threadedly connected to the longitudinal lead screw 10 and slides through the lead screw slide 7. The lifting motor 9 is driven by the longitudinal lead screw 10. The liquid tank 8 is connected to the manifold 15 through the liquid supply pipe 13. The manifold 15 is connected to the bottom of the box body 32 through the suspension pipe 31. The liquid supply pipe 13, the manifold 15, and the suspension pipe 31 are covered with an insulation sleeve 14. A partition plate 33 is transversely intercepted in the box body 32. A jet pump 3 is installed in the space below the partition plate 33. 5. The space above the separator 33 is connected to the jet pump 35 to the jet injector 34. An electric heating element 16 is provided in the liquid tank 8. A transverse positive and negative threaded screw 18 is rotatably connected in the liquid tank 8. The transverse positive and negative threaded screw 18 is connected to the regulating motor 17. A slider 19 is threaded on the positive and negative threads of the transverse positive and negative threaded screw 18. A frame 20 is connected to the slider 19. The clamping plate 21 is slidably engaged with the frame 20. A shock absorber 22 is provided between the frame 20 and the clamping plate 21.

[0034] In the above technical solution, the body 1 serves as a transport device, which can be a drone with a large payload or a cable-crawling robot, used to transport the liquid tank 8 to the vicinity of the iced insulator to perform the spraying action. The support block 2 supports the mounting plate 3, which supports components such as the upright plate 4, the slide 5, the guide rod 6, and the lifting motor 9. The upright plate 4 supports the liquid tank 8 located in the middle, which is kept below the center of gravity of the body 1. The other two liquid tanks 8 are located on both sides of the central liquid tank 8. When the body 1 makes a turning motion, the gravitational torque of the liquid tanks 8 on the body 1 can be controlled by adjusting the height of the liquid tanks 8 on both sides, which helps to maintain the stability of the body 1. To adjust the height of the liquid tanks 8 on both sides, this invention mounts them on a lead screw slide 7. Since the lead screw slide 7 is threaded onto the longitudinal lead screw 10, when the lifting motor 9 drives the longitudinal lead screw 10 to rotate, it can drive the lead screw slide 7 to move upward or downward. In this lifting mechanism, the slide groove 5 and the guide rod 6 guide and restrict the upward and downward movement of the lead screw slide 7. The liquid supply pipe 13, the manifold 15, and the suspension pipe 31 are used to introduce the heat medium into the upper space of the box 32. The partition plate 33 separates the internal space of the box 32. The jet pump 35 located at the bottom pumps the heat medium out and sprays it from the jet injector 34 onto the surface of the insulator to melt ice. The electric heating element 16 is used to heat and maintain the temperature of the heat medium in the liquid tank 8, and the insulation sleeve 14 is used to insulate the pipeline.

[0035] To mitigate the impact of irregular fluid movement within the liquid tank 8 on the stability of the machine body 1, this invention adds a clamping plate 21 with a first hole 24 inside the liquid tank 8. The first hole 24 ensures connectivity. When the fluid in the liquid tank 8 shifts to one side due to inertia or other factors, the clamping plate 21 acts as a buffer against the fluid's impact force, preventing excessive fluid shift from affecting the stability of the machine body 1. To further buffer the fluid's impact force, this invention slides the clamping plate 21 onto the frame 20 and adds a shock absorber 22, thus effectively buffering the fluid's impact force. Furthermore, this invention mounts two frames 20 onto two sliders 19. Since the two sliders 19 are threaded onto the positive and negative sections of the transverse positive and negative threaded screws 18, respectively, the distance between the two clamping plates 21 can be adjusted when the adjusting motor 17 drives the transverse positive and negative threaded screws 18 to rotate.

[0036] The two lead screw slides 7 are respectively threaded onto two longitudinal lead screws 10. One of the longitudinal lead screws 10 is connected to the lifting motor 9. Synchronous pulleys 11 are fixedly connected to both longitudinal lead screws 10, and a synchronous belt 12 is wound between the two synchronous pulleys 11. The clamping plate 21 has an internal layer, within which a support plate 23 is slidably fitted. The clamping plate 21 has several first holes 24, and the support plate 23 has several second holes 25. A bracket 26 is fixedly connected to the clamping plate 21, and a third lead screw 27 is rotatably connected to the bracket 26. A lead screw nut 28 is threaded onto the third lead screw 27 and is fixedly connected to the support plate 23. A gear 29 is fixedly attached to the third lead screw 27, and a support bar 30 is fixedly attached to the clamping plate 21. The support bar 30 has protruding teeth that engage with the gear 29. The second holes 25 are variable diameter holes, and adjacent second holes 25 face opposite directions. A cavity is formed between the heating element 16 and the inner wall of the liquid tank 8, and this cavity is filled with insulating material. The body 1 is a drone or a cable-crawling robot. A transverse ridge is provided on the support plate 23, and a transverse slide rail is provided on the inner wall of the clamping plate 21; the ridge slides into the slide rail. A temperature sensor and a temperature controller are provided in the liquid tank 8, and the temperature controller is electrically connected to both the temperature sensor and the heating element 16. A smooth rod section is provided between the forward and reverse threaded sections of the transverse forward and reverse threaded screw 18. A liquid level sensor is provided in the liquid tank 8.

[0037] In the above technical solution, the present invention adds a support plate 23 to the clamping plate 21, and the support plate 23 is provided with a second hole 25 to ensure connectivity. Since the lead screw nut 28 fixed to the support plate 23 is threaded to the third lead screw 27, and the gear 29 at the end of the third lead screw 27 meshes with the clamping plate 21 through the support bar 30, when the clamping plate 21 slides, the support plate 23 can be driven to slide in the clamping plate 21 under the transmission of the gear 29, thereby using the weight of the support plate 23 as a counterweight to enhance the buffering effect on the movement of the clamping plate 21.

[0038] The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the scope of the present invention should be included within the protection scope of the present invention.

Claims

1. An insulator de-icing device, characterized in that... The components include: body (1), support block (2), mounting plate (3), upright plate (4), slide rail (5), guide rod (6), lead screw slide (7), liquid tank (8), lifting motor (9), longitudinal lead screw (10), liquid supply pipe (13), insulation sleeve (14), manifold (15), heating element (16), adjusting motor (17), transverse positive and negative thread lead screw (18), slider (19), frame (20), clamping plate (21), shock absorber (22), suspension pipe (31), box (32), partition plate (33), jet injector (34), and jet pump (35). A support block (2) is fixedly connected to the body (1). A mounting plate (3) is fixedly connected to the support block (2). A vertical plate (4) is fixedly connected to the mounting plate (3). A liquid tank (8) is fixedly connected to the vertical plate (4). Two other liquid tanks (8) are located on its two sides. The other two liquid tanks (8) are fixedly connected to two screw slides (7). A slide groove (5), a guide rod (6), and a lifting motor (9) are fixedly connected to the mounting plate (3). A longitudinal screw (10) is rotatably connected to the mounting plate (3). The longitudinal screw (10) is located inside the slide groove (5). The slide table (7) is threadedly connected to the longitudinal lead screw (10). The guide rod (6) passes through the slide table (7) and slides with it. The lifting motor (9) is connected to the longitudinal lead screw (10) via a drive. The liquid tank (8) is connected to the manifold (15) via a liquid supply pipe (13). The manifold (15) is connected to the bottom of the box body (32) via a suspension pipe (31). The liquid supply pipe (13), the manifold (15), and the suspension pipe (31) are covered with a heat insulation sleeve (14). A partition plate (33) is transversely intercepted in the box body (32). A jet is provided in the space below the partition plate (33). The space above the separator (33) is connected to the jet pump (35) and the jet pump (35) is connected to the jet injector (34). The liquid tank (8) is equipped with an electric heating element (16). The liquid tank (8) is rotatably connected with a transverse positive and negative threaded screw (18). The transverse positive and negative threaded screw (18) is connected to the regulating motor (17). A slider (19) is threaded on the positive and negative threads of the transverse positive and negative threaded screw (18). A frame (20) is connected to the slider (19). The clamp (21) slides with the frame (20). A shock absorber (22) is provided between the frame (20) and the clamp (21).

2. The insulator de-icing device according to claim 1, characterized in that, The two lead screw slides (7) are respectively threaded onto two longitudinal lead screws (10), one of which is connected to the lifting motor (9) for transmission. Synchronous pulleys (11) are fixedly connected to both longitudinal lead screws (10), and a synchronous belt (12) is wound between the two synchronous pulleys (11).

3. The insulator de-icing device according to claim 1, characterized in that, The clamping plate (21) has a sandwich layer inside, and a support plate (23) is slidably fitted in the sandwich layer. The clamping plate (21) has a plurality of first holes (24), and the support plate (23) has a plurality of second holes (25). A bracket (26) is fixedly connected to the clamping plate (21), and a third lead screw (27) is rotatably connected to the bracket (26). A lead screw nut (28) is threaded onto the third lead screw (27), and the lead screw nut (28) is fixedly connected to the support plate (23). A gear (29) is fixedly attached to the third lead screw (27), and a support bar (30) is fixedly attached to the clamping plate (21). A tooth is provided on the support bar (30), and the tooth engages with the gear (29).

4. An insulator de-icing device according to claim 3, characterized in that, The second hole (25) is a variable diameter hole, and the adjacent second holes (25) face opposite directions.

5. An insulator de-icing device according to claim 1, characterized in that, A cavity is left between the heating element (16) and the inner wall of the liquid tank (8), and the cavity is filled with heat-insulating material.

6. An insulator de-icing device according to claim 1, characterized in that, The body (1) is a drone or a cable crawling robot.

7. An insulator de-icing device according to claim 1, characterized in that, A transverse protrusion is provided on the support plate (23), and a transverse slide is provided on the inner wall of the clamping plate (21), wherein the protrusion and the slide are in sliding engagement.

8. An insulator de-icing device according to claim 1, characterized in that, A temperature sensor is provided in the liquid tank (8), and a temperature controller is also included. The temperature controller is electrically connected to the temperature sensor and the heating element (16).

9. An insulator de-icing device according to claim 1, characterized in that, A smooth rod section is provided between the forward and reverse sections of the transverse forward and reverse threaded screw (18).

10. An insulator de-icing device according to claim 1, characterized in that, A liquid level sensor is installed in the liquid tank (8).

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