High-voltage conductor cleaning device

Abstract

The invention relates to the field of conductor surface cleaning, and provides a high-voltage conductor cleaning device which comprises an annular moving frame, a high-voltage conductor can penetrate through an annular hole of the annular moving frame, walking wheels in groups rolling along the high-voltage conductor are installed on the annular moving frame, and a spraying structure is installed on the annular moving frame. The spraying structure is provided with a nozzle which inclines at a certain angle with the axis of the high-voltage conductor and faces the high-voltage conductor, and the annular moving frame is driven to axially move along the high-voltage conductor by the counter-acting force generated when the nozzle sprays liquid flow towards the high-voltage conductor; according to the high-voltage conductor cleaning device, the conductor cleaning device moves along the high-voltage conductor through the counter-acting force of high-pressure liquid flow, a motor is prevented from being used as a power source, and the moving structure arranged on the conductor cleaning device makes direct contact with the surface of the conductor and moves along the conductor; a large-size and long-distance guide rail is prevented from being built, the conductor cleaning device is simplified, the cleaning method is simplified, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of conductor surface cleaning, and in particular to a high-voltage conductor cleaning device. Background Art

[0002] Gas Insulated Metal-enclosed Switchgear (GIS) refers to a switchgear that is fully or partially made of SF 6 Metal-enclosed switchgear with insulating gases as insulating media. GIS plays a control and protection role in transmission lines, and it is one of the most important power transmission and distribution equipment. Among them, the GIS conductor is at a high potential. If tiny metal foreign matter remains on the surface, it will seriously reduce the insulation level of the product and cause discharge. GIS conductors generally use aluminum alloy extruded tubes as raw materials. After the conductor is processed or welded, the outer surface of the conductor needs to be polished. After polishing, there are residual metal foreign matter on the surface of the conductor that is difficult to remove, which affects the safe operation of the product. For switch electrical components, foreign matter control is an important measure to reduce discharge, control quality, and improve product reliability. In the prior art, GIS conductors are mainly cleaned manually, but the residues produced after the processing of the GIS conductor are closely connected to the conductor itself. It is difficult to completely remove foreign matter by conventional water pressure washing or manual wiping, and there is a great risk of cleaning the conductor by manually holding a high-pressure water gun.

[0003] The Chinese invention patent with the announcement number CN114447823B discloses an automatic cleaning device for GIS conductors, which places the GIS conductor on a conductor support rotating mechanism equipped with rollers, and the conductor support rotating mechanism can drive the GIS conductor to roll circumferentially; the device also designs a set of nozzle displacement devices, including a guide rail, a displacement driving device and a nozzle fixing device installed on the guide rail, and the nozzle fixing device is driven to move along the guide rail by the displacement driving device; the nozzle is connected to a high-pressure water pump, and the rolling GIS conductor is cleaned in all directions during the movement of the nozzle fixing device along the guide rail. The device uses a set of automatic cleaning devices to clean the conductor, avoiding the manual spray cleaning of the GIS conductor with a high-pressure water gun, and solves the problems of poor manual cleaning effect, low efficiency and high risk.

[0004] However, the problem with this solution is that the nozzle displacement device is controlled by a motor to move on a long guide rail to spray water to clean the conductor. The guide rail needs to be designed in advance according to the length of the conductor. In addition, the motor, guide rail, and bracket for supporting the guide rail occupy a large area, and the overall assembly process of the device is long and the assembly process is complicated. Summary of the invention

[0005] The object of the present invention is to provide a high-voltage conductor cleaning device to solve the problem that the nozzle displacement device equipped with a movable structure in the prior art high-voltage conductor cleaning method has a complex overall structure and occupies a large space.

[0006] To achieve the above-mentioned purpose, the present invention provides a high-voltage conductor cleaning device, comprising an annular movable frame, the annular hole of the annular movable frame is for the high-voltage conductor to pass through, the annular movable frame is equipped with a group of running wheels that roll along the high-voltage conductor, and the annular movable frame is equipped with a spray structure, the spray structure has a nozzle that is inclined at a certain angle to the axis of the high-voltage conductor and facing the high-voltage conductor, so that when the nozzle sprays liquid toward the high-voltage conductor, the annular movable frame is driven to move axially along the high-voltage conductor through a reaction force.

[0007] Furthermore, there are two groups of spray structures, which are installed on both sides of the annular movable frame. The nozzles of the two groups of spray structures are respectively directed to both sides of the axial direction of the high-voltage conductor, so that when the two groups of spray structures spray water respectively, the annular movable frame can be pushed to move bidirectionally along the axial direction of the high-voltage conductor.

[0008] Furthermore, the high-voltage conductor cleaning device also includes a water supply switch for controlling the switching of water supply circuits of two sets of injection structures. The water supply switch is used to be installed at both ends of the high-voltage conductor in the axial direction. When the injection structure drives the annular movable frame to move to the end of one end of the conductor, it touches the water supply switch to realize the return movement.

[0009] Furthermore, the injection structure includes an annular tube, and a plurality of nozzles are evenly arranged along the annular direction of the annular tube.

[0010] Furthermore, there are multiple groups of running wheels arranged on the annular moving frame and the running wheels are evenly distributed in the circumferential direction to ensure the stability of the annular moving frame when it moves along the high-voltage conductor.

[0011] Furthermore, each set of running wheels includes more than two bull's eye wheels arranged axially, so as to ensure that when the high-voltage conductor or one of the annular moving frames rotates, the annular moving frame can move axially along the high-voltage conductor.

[0012] Furthermore, the groups of running wheels are adjustably mounted on the annular moving frame along the radial direction of the annular moving frame to facilitate cleaning of high-voltage conductors of different diameters.

[0013] Furthermore, the groups of running wheels are installed on the annular moving frame through an elastic floating structure to achieve adaptive high-voltage conductor diameter.

[0014] Furthermore, the annular movable frame includes two annular frames arranged axially at intervals, a group of running wheels is installed between the two annular frames, and the annular tube is installed on the side of the annular frame facing away from the other annular frame.

[0015] Furthermore, the high-voltage conductor cleaning device also includes an anti-splashing shield, which is a cylindrical structure with a certain length. The anti-splashing shield circumferentially surrounds the injection structure and the annular movable frame to prevent droplets from splashing when the high-voltage liquid flow is sprayed on the surface of the high-voltage conductor.

[0016] Beneficial effects: The present invention provides a high-voltage conductor cleaning device in a pioneering manner, comprising an annular movable frame, a ring hole of the annular movable frame for the high-voltage conductor to pass through, a group of running wheels rolling along the high-voltage conductor installed on the annular movable frame, and a spray structure installed on the annular movable frame, wherein the spray structure has a nozzle inclined at a certain angle to the axis of the high-voltage conductor and facing the high-voltage conductor, so that when the nozzle sprays a liquid flow toward the high-voltage conductor, the annular movable frame is driven to move axially along the high-voltage conductor through a reaction force; the reaction force of the liquid flow sprayed by the nozzle drives the movable structure, thereby driving the conductor cleaning device as a whole to move along the conductor and clean the conductor as a whole, avoiding the use of a motor for power supply, and not needing to set up a large-volume, long-distance guide rail bracket and guide rail, thereby simplifying the conductor cleaning method and improving the conductor cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The assembly drawing of the high-voltage conductor cleaning device without the anti-sputtering shield installed; Figure 2 This is the overall assembly drawing of the high-voltage conductor cleaning device; Figure 3 It is a front view of the high-voltage conductor cleaning device; Figure 4 It is a cross-sectional view of the annular movable frame of the high-voltage conductor cleaning device.

[0018] In the figure: 1. injection structure; 11. nozzle; 12. annular tube; 2. annular movable frame; 21. walking wheel; 22. movable shaft; 23. bull's eye wheel; 24. compression spring; 25. mounting base; 26. gasket; 27. annular frame; 28. wheel system support frame; 3. water supply channel; 4. anti-splash shield. DETAILED DESCRIPTION

[0019] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0020] The principle of the present invention is to design a high-voltage conductor cleaning device in which a mobile device is in direct contact with the conductor. The high-voltage conductor is cleaned by a high-pressure liquid flow ejected by a spray structure. At the same time, the reaction force of the sprayed high-pressure liquid flow is used to push the cleaning device to move along the high-voltage conductor to clean the high-voltage conductor as a whole.

[0021] Based on the above principles and concepts, the present invention provides multiple embodiments of a high-voltage conductor cleaning device for further explanation.

[0022] In a basic embodiment, Figure 1 In the provided embodiment, the high-voltage conductor cleaning device includes an annular movable frame 2, the annular hole of the annular movable frame 2 is used to place the high-voltage conductor, and a group of walking wheels 21 are also installed on the annular movable frame 2. The walking wheels 21 are in contact with the surface of the high-voltage conductor and roll along the high-voltage conductor. The annular movable frame 2 is also installed with a spray structure 1, and the spray structure 1 is provided with a nozzle 11 facing the high-voltage conductor and inclined at a certain angle to the axis of the high-voltage conductor. The nozzle 11 sprays a high-pressure cleaning liquid flow. While cleaning the high-voltage conductor, the reaction force generated by the spraying of the high-pressure liquid flow can drive the annular movable frame 2 to move along the axial direction of the high-voltage conductor.

[0023] On the basis of the above embodiments, in one embodiment, only one set of spray structures 1 is provided on the annular movable frame 2. After the high-voltage conductor cleaning device has finished cleaning along the high-voltage conductor, if there is still a small amount of dirt that has not been cleaned up, it is necessary to manually relocate the high-voltage conductor cleaning device to one end of the high-voltage conductor cleaning area, start the water pump, and perform secondary cleaning; in a more preferred embodiment, as Figure 1-3 In the provided embodiment, two groups of injection structures 1 are provided, and the annular movable frame 2 is arranged between the two groups of injection structures 1. The nozzles 11 of the two groups of injection structures 1 are respectively directed to the two sides of the axial direction of the high-voltage conductor, and water is supplied to only one group of injection structures 1 at a time. When the annular movable frame 2 moves to the end of one end of the high-voltage conductor, the water supply channel 3 of this group is closed, and the water supply channel 3 of the other group is opened, thereby realizing the bidirectional movement of the annular movable frame 2 along the axial direction of the high-voltage conductor.

[0024] On the basis of the above embodiments, in one embodiment, when the annular movable frame 2 moves to the end of one end of the high-voltage conductor cleaning area, the water supply channel 3 of the current injection structure 1 is closed by manual control, and the water supply channel 3 of another group of injection structures 1 is opened. In a more preferred embodiment, the high-voltage conductor cleaning device is also provided with a water supply switch for controlling the two groups of water supply channels 3. The water supply switches are installed at both ends of the high-voltage conductor cleaning area. When the annular movable frame 2 moves to one end of the cleaning area, it touches the water supply switch to automatically switch the on and off states of the two groups of water supply channels 3, so that the return movement of the annular movable frame 2 can be realized.

[0025] Based on the above embodiments, in one embodiment, Figure 1-3 In the provided embodiment, the spray structure 1 includes an annular pipe 12 connected to a water pump via a water supply channel 3, and a plurality of nozzles 11 are evenly arranged in an annular direction on the annular pipe 12 to ensure uniformity of the cleaning operation.

[0026] Based on the above embodiments, in one embodiment, Figure 1-3In the provided embodiment, three groups of running wheels 21 are evenly arranged along the circumference of the annular moving frame 2 to ensure the stability of the annular moving frame 2 during the movement along the high-voltage conductor.

[0027] On the basis of the above-mentioned embodiment, in one embodiment, the running wheels 21 provided on the annular moving frame 2 use a group of rollers arranged along the axial direction of the high-voltage conductor; in a more preferred embodiment, as Figure 1-3 In the provided embodiment, the travel wheel 21 includes two axially arranged bull's eye wheels 23. Thus, if a better cleaning effect is desired, the high-voltage conductor or one of the annular movable frames 2 can be rotated to spray water all over the high-voltage conductor for cleaning. The bull's eye wheel 23 can achieve axial rolling along the high-voltage conductor during the circumferential rotation of the high-voltage conductor. In another embodiment, a universal wheel can also be used as the roller of the travel wheel 21.

[0028] On the basis of the above embodiments, in one embodiment, facing high-voltage conductors with different diameters, the annular moving frame 2 with different diameters is replaced to adapt to the high-voltage conductors. In a more preferred embodiment, as Figure 1-3 In the provided embodiment, the group of running wheels 21 are adjustably mounted on the annular moving frame 2 along the radial direction, and the distance of the running wheels 21 toward the center of the annular moving frame 2 is adjusted to adapt to high-voltage conductors of different diameters.

[0029] On the basis of the above embodiment, in one embodiment, by installing a threaded shaft on the walking wheel 21, opening a threaded hole on the annular moving frame 2, and controlling the extension length of the walking wheel 21 through threaded connection, in a more preferred embodiment, as Figure 1-4 In the embodiment provided, the running wheel 21 includes two bull's eye wheels 23 and a mounting base 25 for mounting the bull's eye wheels 23. The mounting base 25 is connected to the bottom of the moving shaft 22. One end of the moving shaft 22 is provided with a thread. The running wheel 21 also includes a wheel support frame 28. A mounting hole is provided on the wheel support frame 28. The end of the mounting hole away from the bull's eye wheel 23 has a small diameter section for supporting the compression spring 24. The compression spring 24 is sleeved on the moving shaft 22. The end of the moving shaft 22 with a thread is passed outwardly through the mounting hole of the wheel support frame 28 along the radial direction of the annular moving frame 2. The end of the compression spring 24 close to the bull's eye wheel 23 is supported on the stop step of the moving shaft 22. The other end away from the bull's eye wheel 23 is supported on the inner wall of the mounting hole of the support frame 28. The other end of the moving shaft 22 is provided with a thread. A retaining ring 26 matching the thread of the moving shaft 22 is installed at the thread of the end of the moving shaft 22 away from the bull's eye wheel 23 that passes through the mounting hole of the wheel support frame 28. The stopper is used to cooperate with the hole edge of the mounting hole of the gear train support frame 28 to prevent the moving shaft 22 from escaping from the mounting hole of the gear train support frame 28.

[0030] Based on the above embodiments, in one embodiment, Figure 2 , Figure 4 In the provided embodiment, the annular movable frame 2 includes two annular frames 27 axially spaced apart, three sets of running wheels 21 are installed between the two annular frames 27 at intervals of 120°, and the annular pipe 12 of the injection structure 1 is installed on the side of the annular frame 27 facing away from the other annular frame 27.

[0031] Based on the above embodiments, in one embodiment, Figure 3 , Figure 4 In the provided embodiment, a splash shield 4 is also installed around the annular movable frame 2. The splash shield 4 is a circular cylinder with a certain extension length. The splash shield 4 surrounds the entire high-voltage conductor cleaning device to prevent the high-pressure liquid flow from splashing on the high-voltage conductor, thereby protecting the staff and nearby equipment.

[0032] When the high-voltage conductor cleaning device of the present invention is in use, the high-voltage conductor to be cleaned is passed through the annular movable frame 2 of the high-voltage conductor cleaning device, and the water supply channel 3 connecting any one of the two groups of water spray structures 1 is opened, so as to drive the annular movable frame 2 to move along the high-voltage conductor and perform water spray cleaning. When the annular movable frame 2 moves to one end of the high-voltage conductor cleaning area, it touches the water supply switch, closes the water supply channel 3 of the current water spray structure 1 and opens the water supply channel 3 of the other group of water spray structures 1, so as to perform reciprocating cleaning on the cleaning area of ​​the high-voltage conductor; an anti-splashing shield 4 is also installed on the annular movable frame 2 to prevent liquid from splashing. The high-voltage conductor cleaning device configured in this way simplifies the equipment required for cleaning the high-voltage conductor, simplifies the operation process, and improves the cleaning efficiency.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. A high voltage conductor cleaning device, characterized in that: The utility model comprises an annular movable frame, the annular hole of the annular movable frame is for the high-voltage conductor to pass through, the annular movable frame is provided with a group of running wheels rolling along the high-voltage conductor, the annular movable frame is provided with a spraying structure, the spraying structure has a nozzle which is inclined at a certain angle to the axis of the high-voltage conductor and faces the high-voltage conductor, so that when the nozzle sprays liquid toward the high-voltage conductor, the annular movable frame is driven to move axially along the high-voltage conductor through the reaction force.

2. A high-voltage conductor cleaning device according to claim 1, characterized in that: There are two groups of spray structures installed on both sides of the annular movable frame. The nozzles of the two groups of spray structures are respectively directed to both sides of the axial direction of the high-voltage conductor, so that when the two groups of spray structures spray water respectively, the annular movable frame can be pushed to move bidirectionally along the axial direction of the high-voltage conductor.

3. A high-voltage conductor cleaning device according to claim 2, characterized in that: The high-voltage conductor cleaning device also includes a water supply switch for controlling the switching of water supply channels of two sets of injection structures. The water supply switch is used to be installed at both ends of the high-voltage conductor in the axial direction. When the injection structure drives the annular movable frame to move to the end of one end of the conductor, it touches the water supply switch to realize the return movement.

4. A high-voltage conductor cleaning device according to any one of claims 1 to 3, characterized in that: The spray structure comprises an annular tube, and a plurality of nozzles are evenly arranged along the annular direction of the annular tube.

5. A high-voltage conductor cleaning device according to any one of claims 1 to 3, characterized in that: There are multiple groups of running wheels arranged on the annular moving frame and the wheels are evenly distributed in the circumferential direction to ensure the stability of the annular moving frame when it moves along the high-voltage conductor.

6. A high-voltage conductor cleaning device according to claim 5, characterized in that: Each set of running wheels includes more than two bull's eye wheels arranged axially, so as to ensure that during the rotation of the high-voltage conductor or one of the annular moving frames, the annular moving frame can move axially along the high-voltage conductor.

7. A high-voltage conductor cleaning device according to claim 5, characterized in that: The groups of running wheels are adjustably mounted on the annular moving frame along the radial direction of the annular moving frame to cooperate with cleaning high-voltage conductors of different diameters.

8. A high-voltage conductor cleaning device according to claim 7, characterized in that: The groups of running wheels are installed on the annular moving frame through an elastic floating structure to achieve adaptive high-voltage conductor diameter.

9. A high-voltage conductor cleaning device according to claim 4, characterized in that: The annular moving frame comprises two annular frames which are axially spaced apart from each other, a group of running wheels are installed between the two annular frames, and the annular tube is installed on the side of the annular frame which faces away from the other annular frame.

10. A high-voltage conductor cleaning device according to any one of claims 1 to 3, characterized in that: The high-voltage conductor cleaning device also includes an anti-splashing shield, which is a cylindrical structure with a certain length. The anti-splashing shield surrounds the spraying structure and the annular movable frame to prevent droplets from splashing when the high-voltage liquid flow is sprayed on the surface of the high-voltage conductor.

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