A self-monitoring transformer

Abstract

The application provides a self-monitoring transformer, and belongs to the technical field of transformers. A piston is arranged in a first reference tube, and a plug rod penetrates a sealing plate. A filter plate is arranged in the first reference tube. The plug rod is provided with a conveying flow channel, and a region between the piston and the filter plate is in communication with the conveying flow channel. A first one-way component is arranged in the conveying flow channel. A second one-way component is arranged at an end of the first reference tube away from the sealing plate. The plug rod is reciprocally driven by a driving component. A visual component is arranged in the first reference tube. A processor is used for judging the health degree of insulating oil in a transformer body according to image data obtained by the visual component. The transformer can continuously and autonomously monitor the actual condition of the insulating oil, avoids the disadvantages of manual monitoring, and effectively improves the operation safety of the transformer.

Description

Technical Field

[0001] This application relates to the field of transformer technology, and more specifically, to a self-monitoring transformer. Background Technology

[0002] In transformers, insulating oil plays a role in insulation protection, heat dissipation and cooling, arc extinguishing protection, and material protection. In order to ensure the normal operation of transformers, the insulating oil of transformers needs to be tested and replaced regularly.

[0003] Currently, the testing of transformer insulating oil is all done manually. Operators need to periodically sample and test the transformer's insulating oil and record changes in its properties. Manual testing is susceptible to significant human error, is costly, and is prone to delays. Summary of the Invention

[0004] The purpose of this application is to provide a self-monitoring transformer that can continuously and autonomously monitor the actual condition of the transformer insulating oil, avoiding the drawbacks of manual monitoring and effectively improving the operational safety of the transformer.

[0005] The embodiments of this application are implemented as follows:

[0006] A self-monitoring transformer includes: a transformer body and a monitoring mechanism.

[0007] The monitoring mechanism includes: a first reference tube, a piston, a piston rod, a filter plate, a vision component, and a processor.

[0008] One end of the first reference tube is sealed by a sealing plate. A piston is fitted into the first reference tube, and a piston rod is connected to the side of the piston closest to the sealing plate, passing through the sealing plate.

[0009] The filter plate is located inside the first reference tube, on the side of the piston away from the piston rod.

[0010] A conveying channel is provided on the end face of the piston rod away from the piston. The conveying channel extends along the piston rod and extends to the piston. The area between the piston and the filter plate is connected to the conveying channel.

[0011] The end of the conveying channel away from the piston is connected to the top of the oil tank of the transformer body, and the end of the first reference tube away from the sealing plate is connected to the bottom of the oil tank of the transformer body.

[0012] The conveying channel is equipped with a first one-way component so that the insulating oil in the conveying channel can only flow to the area between the piston and the filter plate.

[0013] A second one-way component is provided at the end of the first reference tube away from the sealing plate, so that the insulating oil in the first reference tube can only flow out from the end of the first reference tube away from the sealing plate.

[0014] The piston rod is driven reciprocally by a drive assembly.

[0015] The vision component is located inside the first reference tube, on the side of the filter plate near the piston and close to the filter plate.

[0016] The vision component is electrically connected to the processor, which is used to determine the health of the insulating oil in the transformer body based on the image data acquired by the vision component.

[0017] Furthermore, the drive assembly drives the piston rod to rotate while simultaneously reciprocating along the axial direction of the first reference tube.

[0018] A mating hole is provided on the side of the piston near the filter plate, and the mating hole extends axially along the first reference tube.

[0019] The filter plate is rotatably fitted to the first reference tube. A mating rod is connected to the side of the filter plate near the piston, and the mating rod extends axially along the first reference tube. Along the axial direction of the first reference tube, the mating rod slides into a mating hole.

[0020] A cleaning component is fixedly connected to the inner wall of the first reference tube. The cleaning component is located on the side of the filter plate near the piston and is in contact with the filter plate.

[0021] Furthermore, the drive components include: a driver, a first gear, a second gear, and a transmission rack.

[0022] The first gear and the second gear are spaced apart and their rotation axes are parallel.

[0023] The power output section of the driver is connected to a drive gear, which engages between the first gear and the second gear. Both the first gear and the second gear mesh with the drive gear.

[0024] The rotational axes of the drive gear, the first gear, and the second gear are located in the same plane, and this plane is perpendicular to the piston rod.

[0025] One end of the transmission rack is eccentrically hinged to the side wall of the first gear, and the other end is eccentrically hinged to the side wall of the second gear. The transmission rack is set perpendicular to the piston rod.

[0026] The outer side wall of the plug rod has a first annular flange and a second annular flange spaced apart. The outer side wall of the plug rod also has an external gear ring located between the first annular flange and the second annular flange.

[0027] The transmission rack is fitted between the first annular flange and the second annular flange, and the transmission rack meshes with the outer gear ring.

[0028] Furthermore, the mating hole and the conveying channel are connected by a connecting hole, and the first unidirectional component is located in the connecting hole.

[0029] A support rod is connected to the side of the filter plate near the piston. The support rod is coaxially arranged with the filter plate. A support plate is coaxially connected to the end of the support rod away from the filter plate. A mating rod is installed on the support plate.

[0030] A clearance hole is provided on the side of the support plate near the piston. The clearance hole is coaxial with the filter plate and extends along the axial direction of the first reference tube, passing through the support rod and the filter plate in sequence.

[0031] A control rod is connected to the side of the piston near the filter plate. The control rod extends axially along the first reference tube and fits into the clearance hole.

[0032] The control lever has an inner cavity, and the inner side wall of the inner cavity has a notch that penetrates the side wall of the control lever. A sliding block is accommodated in the notch. A first elastic element is fitted on the side of the sliding block near the inner cavity, and the end of the first elastic element away from the sliding block abuts against the inner cavity.

[0033] The end of the first reference tube furthest from the sealing plate is connected to the second reference tube, and the inner diameter of the first reference tube is smaller than that of the second reference tube.

[0034] The second unidirectional component includes a guide rod and a partition.

[0035] The guide rod is connected to the end face of the first reference tube near the second reference tube. The guide rod extends along the axial direction of the first reference tube, and a stop is connected to the end of the guide rod away from the first reference tube.

[0036] The partition is located inside the second reference tube, and the guide rod passes through the partition. Along the axial direction of the guide rod, the partition slides against the guide rod.

[0037] The partition has openings for the control lever to pass through.

[0038] When the piston moves toward the filter plate, the mating rod extends into the mating hole and contacts the first one-way component, preventing the first one-way component from opening.

[0039] When the piston moves toward the filter plate, when the distance between the piston and the filter plate reaches its minimum value, the control rod passes through the opening, and the sliding block is located on the side of the filter plate away from the piston.

[0040] When the piston moves away from the filter plate, the control rod separates from the filter plate after the mating rod separates from the first one-way assembly.

[0041] Furthermore, the opening is equipped with a valve, which pushes the valve open when the control rod passes through the opening.

[0042] When the piston moves away from the filter plate, the valve closes when the control rod separates from the filter plate.

[0043] Furthermore, the cleaning component is a cover, which is placed over the filter plate.

[0044] The cleaning component has an opening on one side that communicates with its internal space. The opening extends from the edge of the cleaning component near the filter plate toward its interior.

[0045] The cleaning component is fitted with a plate for closing the opening. The edge of the plate near the support rod is hinged to the edge of the opening near the support rod, and the plate is located inside the cleaning component.

[0046] The rotation axis of the plate is set parallel to the central axis of the first reference tube. The plate is equipped with a torsion spring so that the end of the plate away from its hinge end fits against the inner wall of the cleaning component in its natural state.

[0047] The sidewall of the cleaning component away from the opening is made of a mesh plate, the mesh aperture of which is smaller than or equal to the filter pore diameter of the filter plate.

[0048] The filter plate has an installation hole arranged along the axial direction of the first reference tube. A mating post is slidably fitted in the installation hole. The mating post is fitted with a second elastic element so that, in its natural state, part of the mating post extends to the side of the filter plate near the piston.

[0049] When the mating post comes into contact with the plate, the mating post pushes the plate toward the cleaning part to open the opening.

[0050] When the mating post contacts the side wall of the cleaning component away from the opening, the cleaning component pushes the mating post into the mounting hole.

[0051] Furthermore, the first reference tube is also connected to a slag discharge pipe, which is connected to the internal space of the cleaning component and is equipped with a control valve.

[0052] The beneficial effects of the technical solutions in this application include:

[0053] During use, the processor of the self-monitoring transformer can determine the content of solid impurities in the insulating oil based on image data, and assess the overall impurity content level of the insulating oil in the transformer body based on the amount of solid impurities. This allows the transformer to determine whether there are too many impurities in the insulating oil (too many solid impurities will directly affect the insulation performance of the insulating oil) and whether the insulating oil needs to be replaced.

[0054] During the piston's movement, solid impurities in the insulating oil will continuously accumulate on the side of the filter plate closest to the piston. The processor can determine the overall impurity content of the insulating oil based on the changes in the content of solid impurities in the image data.

[0055] If the impurity content in the image remains at a low level, it indicates that the overall impurity content in the insulating oil is low. If the impurity content in the image increases rapidly in a short period of time, it indicates that the overall impurity content in the insulating oil has changed significantly. This suggests that the safety and reliability of the insulating oil has decreased, and it also indicates that there is a problem with some components inside the transformer. In this case, the transformer body needs to be inspected according to the actual situation.

[0056] Overall, the self-monitoring transformer provided in this application embodiment can continuously and autonomously monitor the actual condition of the transformer insulating oil, avoiding the drawbacks of manual monitoring and effectively improving the operational safety of the transformer. Attached Figure Description

[0057] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0058] Figure 1 This is a schematic diagram of the overall structure of the self-monitoring transformer provided in the embodiments of this application;

[0059] Figure 2 This is a status diagram of the monitoring mechanism (when the piston is furthest from the filter plate).

[0060] Figure 3 This is a schematic diagram of the state of the drive component (when the drive rack is at its highest position).

[0061] Figure 4 A schematic diagram of the end of the piston rod away from the piston;

[0062] Figure 5 This is a schematic diagram of the structure at the bottom of the control lever (when the sliding block is extended).

[0063] Figure 6 This is a schematic diagram of the structure at the bottom of the control lever (when the sliding block is retracted).

[0064] Figure 7 A schematic diagram of the state of the drive components (first gear relative to each other) Figure 3 When rotating 90°).

[0065] Figure 8 For the driver component to be in Figure 7 The diagram shown illustrates the state of the piston.

[0066] Figure 9 A schematic diagram of the state of the drive components (first gear relative to each other) Figure 3When rotating 180°).

[0067] Figure 10 For the driver component to be in Figure 9 The diagram shown illustrates the state of the piston.

[0068] Figure 11 A schematic diagram showing the state when the valve rod is just separated from the one-way valve;

[0069] Figure 12 A schematic diagram of the state of the drive components (first gear relative to each other) Figure 3 When rotating 270°).

[0070] Figure 13 For the first gear relative Figure 3 A schematic diagram of the piston's state when it rotates 360°.

[0071] Figure 14 This is a schematic diagram showing the fit between the cleaning components and the filter plate.

[0072] Figure 15 for Figure 14 Schematic diagram of the structure at the central slag discharge pipe;

[0073] Figure 16 This is a schematic diagram showing the fit between the filter plate and the cleaning component (when the plate is closed).

[0074] Figure 17 This is a schematic diagram showing the fit between the filter plate and the cleaning components (when the plate is open).

[0075] Figure 18 This is a schematic diagram of the fit between the filter plate and the cleaning component (when the mating column passes over the plate).

[0076] Explanation of reference numerals in the attached figures:

[0077] 100-Transformer body; 110-Monitoring mechanism; 200-First reference tube; 210-Sealing plate; 220-Cleaning component; 221-Opening; 222-Plate; 223-Slag discharge pipe; 300-Piston; 310-Mating hole; 320-Connecting hole; 330-Control rod; 331-Inner cavity; 332-Notch; 333-Sliding block; 334-First elastic element; 335-Anti-detachment block; 340-Plug rod; 341-Conveying channel; 342-First annular flange; 34 3-Second annular flange; 344-External gear ring; 400-Filter plate; 410-Matching rod; 420-Support rod; 430-Support plate; 440-First hole section; 450-Second hole section; 460-Third hole section; 470-Matching column; 480-End block; 490-Second elastic element; 510-Drive gear; 520-First gear; 530-Second gear; 540-Transmission rack; 610-Guide rod; 620-Stop; 630-Partition plate; 700-Transfer pipe. Detailed Implementation

[0078] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0079] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0080] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0081] The terms “first,” “second,” “third,” etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0082] Furthermore, the terms "vertical" and "parallel" do not mean that the parts must be absolutely vertical or parallel, but can be slightly tilted.

[0083] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0084] The technical solutions of this application will be described by way of example through some embodiments below.

[0085] See Figures 1-2 This application provides a self-monitoring transformer, which includes a transformer body 100 and a monitoring mechanism 110.

[0086] The monitoring unit 110 includes: a first reference tube 200, a piston 300, a stopper rod 340, a filter plate 400, a vision component (not shown in the figure), and a processor (not shown in the figure).

[0087] One end of the first reference tube 200 is closed by the sealing plate 210. In this embodiment, the first reference tube 200 is arranged in a vertical direction, and the top end of the first reference tube 200 is closed by the sealing plate 210.

[0088] Piston 300 is fitted into first reference tube 200. Along the axial direction of first reference tube 200, piston 300 is slidably fitted into first reference tube 200. There is a sliding seal between piston 300 and first reference tube 200.

[0089] A stopper rod 340 is fixedly connected to the piston 300 near the sealing plate 210. The stopper rod 340, piston 300, and first reference tube 200 are coaxially arranged, with the stopper rod 340 passing through the sealing plate 210. Along the axial direction of the first reference tube 200, the stopper rod 340 slides in conjunction with the sealing plate 210. The sealing plate 210 has a pressure balance hole (not shown in the figure) that communicates with the space on the side of the piston 300 near the sealing plate 210.

[0090] The filter plate 400 is disposed inside the first reference tube 200, and the filter plate 400 is arranged perpendicular to the central axis of the first reference tube 200. The filter plate 400 is located on the side of the piston 300 away from the piston rod 340. The filter plate 400 is fixedly engaged with the first reference tube 200 along the axial direction of the first reference tube 200.

[0091] A conveying channel 341 is provided on the end face of the piston rod 340 away from the piston 300. The conveying channel 341 extends along the axial direction of the piston rod 340 and extends into the piston 300. The area between the piston 300 and the filter plate 400 is connected to the conveying channel 341.

[0092] The end of the conveying channel 341 away from the piston 300 is connected to the top of the oil tank of the transformer body 100, and the end of the first reference tube 200 away from the sealing plate 210 is connected to the bottom of the oil tank of the transformer body 100.

[0093] The conveying channel 341 is provided with a first one-way component (not shown in the figure) to ensure that the insulating oil in the conveying channel 341 can only flow to the area between the piston 300 and the filter plate 400, while the insulating oil located between the piston 300 and the filter plate 400 will not flow back into the conveying channel 341. The first one-way component may be a diaphragm, a one-way valve, etc.

[0094] The first reference tube 200 is provided with a second one-way component at the end away from the sealing plate 210, so that the insulating oil in the first reference tube 200 can only flow out from the end of the first reference tube 200 away from the sealing plate 210.

[0095] The piston rod 340 is reciprocated by a drive assembly, enabling the piston 300 to reciprocate toward and away from the filter plate 400 along the axial direction of the first reference tube 200.

[0096] The vision component is located inside the first reference tube 200. The vision component is located on the side of the filter plate 400 near the piston 300 and is positioned close to the filter plate 400.

[0097] The vision component can be, but is not limited to, a camera equipped with a light source. The vision component is electrically connected to the processor and is used to acquire image data of the insulating oil near the filter plate 400.

[0098] The processor is used to determine the health of the insulating oil within the transformer body 100 based on image data acquired by the vision component. Specifically, the processor can determine the content of solid impurities in the insulating oil based on the image data, and assess the overall impurity content level of the insulating oil in the transformer body based on the amount of solid impurities, thereby determining whether the amount of impurities in the insulating oil is excessive (excessive solid impurities will directly affect the insulation performance of the insulating oil) and whether the insulating oil needs to be replaced.

[0099] When the stopper rod 340 moves toward the side away from the filter plate 400, the first one-way component opens and the second one-way component closes, and the insulating oil in the upper part of the oil tank of the transformer body 100 is sucked into the first reference tube 200 through the conveying channel 341.

[0100] When the piston rod 340 moves towards the side closer to the filter plate 400, the first one-way component closes and the second one-way component opens. The sucked-in insulating oil is filtered through the filter plate 400 by the piston 300, and solid impurities in the insulating oil are isolated on the side of the filter plate 400 closer to the piston 300. In other words, during the movement of the piston 300, solid impurities in the insulating oil continuously accumulate on the side of the filter plate 400 closer to the piston 300. The processor can determine the overall impurity content of the insulating oil based on the changes in the solid impurity content in the image data. For example, if the impurity content in the image remains at a low level, it indicates that the overall impurity content in the insulating oil is low. If the impurity content in the image increases rapidly in a short period, it indicates a significant change in the overall impurity content of the insulating oil. This suggests both a decrease in the safety and reliability of the insulating oil and a problem with certain components inside the transformer body 100, requiring inspection of the transformer body 100 based on the actual situation.

[0101] Overall, the self-monitoring transformer provided in this application embodiment can continuously and autonomously monitor the actual condition of the transformer insulating oil, avoiding the drawbacks of manual monitoring and effectively improving the operational safety of the transformer.

[0102] It should be noted that, in this embodiment, the vision component can be embedded in the inner wall of the first reference tube 200. Furthermore, during the movement of the piston 300, even when the distance between the piston 300 and the filter plate 400 reaches its minimum, a certain gap still exists between them. When the distance between the piston 300 and the filter plate 400 reaches its minimum, the vision component remains located in the area between the piston 300 and the filter plate 400.

[0103] In this embodiment, the driving component drives the piston rod 340 to rotate while simultaneously driving the piston rod 340 to reciprocate along the axial direction of the first reference tube 200.

[0104] A mating hole 310 is provided on the side of the piston 300 near the filter plate 400, and the mating hole 310 extends axially along the first reference tube 200. The mating hole 310 is a blind hole, and multiple mating holes 310 are evenly spaced along the circumference of the piston 300. The specific number of mating holes 310 can be flexibly set according to actual needs.

[0105] Along the circumference of the first reference tube 200, the stopper rod 340 is rotatably fitted to the sealing plate 210, the piston 300 is rotatably fitted to the first reference tube 200, and the filter plate 400 is rotatably fitted to the first reference tube 200. The piston 300 and the first reference tube 200 are rotatably sealed, and the filter plate 400 is also rotatably sealed to the first reference tube 200.

[0106] A mating rod 410 is fixedly connected to the side of the filter plate 400 near the piston 300, and the mating rod 410 extends axially along the first reference tube 200. The number of mating rods 410 is the same as the number of mating holes 310, and the mating rods 410 and mating holes 310 are arranged in a one-to-one correspondence. The mating rod 410 is used to fit into the mating hole 310, and the mating rod 410 and the mating hole 310 slide in a axial position along the first reference tube 200.

[0107] A cleaning component 220 is fixedly connected to the inner wall of the first reference tube 200. The cleaning component 220 is located on the side of the filter plate 400 near the piston 300 and is in contact with the surface of the filter plate 400.

[0108] With this design, as the piston 300 moves axially along the first reference tube 200, it also rotates circumferentially along the first reference tube 200. The piston 300 drives the mating rod 410 and the filter plate 400 to rotate together through the mating hole 310. When the filter plate 400 rotates, it moves relative to the cleaning component 220, which can remove solid impurities from the surface of the filter plate 400. This design prevents impurities from clogging the filter pores of the filter plate 400 and also promotes the movement of solid impurities near the filter plate 400. This allows the vision component to acquire image data that better reflects the actual volume of the filtered impurities.

[0109] For specific details, please refer to... Figure 3 and Figure 4 The drive assembly includes: a driver (not shown in the figure), a first gear 520, a second gear 530, and a transmission rack 540.

[0110] The first gear 520 and the second gear 530 are spaced apart and their rotation axes are parallel.

[0111] The power output section of the driver is connected to a drive gear 510, which is engaged between the first gear 520 and the second gear 530. Both the first gear 520 and the second gear 530 mesh with the drive gear 510.

[0112] The rotation axes of the drive gear 510, the first gear 520, and the second gear 530 are parallel to each other and located in the same plane, which is perpendicular to the central axis of the piston rod 340. The first gear 520 and the second gear 530 have the same diameter, and the rotation axis of the drive gear 510 is perpendicular to and intersects the central axis of the piston rod 340.

[0113] The first gear 520 and the second gear 530 are positioned close to the stopper rod 340.

[0114] One end of the transmission rack 540 is eccentrically hinged to the side wall of the first gear 520 near the piston rod 340, and the other end of the transmission rack 540 is eccentrically hinged to the side wall of the second gear 530 near the piston rod 340. The rotation axes of both ends of the transmission rack 540 are parallel to the rotation axis of the drive gear 510. The transmission rack 540 is perpendicular to the piston rod 340.

[0115] The outer wall of the plug rod 340 has a first annular flange 342 and a second annular flange 343, both of which are coaxially arranged with the plug rod 340. Along the axial direction of the plug rod 340, the first annular flange 342 and the second annular flange 343 are spaced apart. The first annular flange 342 and the second annular flange 343 are located outside the first reference tube 200, with the first annular flange 342 located on the side of the second annular flange 343 furthest from the sealing plate 210.

[0116] The outer side wall of the plug rod 340 also has an external gear ring 344, which is located between the first annular flange 342 and the second annular flange 343.

[0117] The transmission rack 540 is fitted between the first annular flange 342 and the second annular flange 343. The teeth of the transmission rack 540 are located on the side close to the outer gear ring 344. The first annular flange 342 and the second annular flange 343 are both in contact with the transmission rack 540. The surfaces of the first annular flange 342 and the second annular flange 343 can slide relative to the surface of the transmission rack 540.

[0118] The transmission rack 540 meshes with the external gear ring 344.

[0119] Furthermore, the mating hole 310 and the conveying channel 341 are spaced apart, and the mating hole 310 and the conveying channel 341 are connected by a connecting hole 320. The connecting hole 320 is located inside the piston 300 and is arranged radially along the piston 300. The first one-way component is located in the connecting hole 320.

[0120] A support rod 420 is fixedly connected to the side of the filter plate 400 near the piston 300. The diameter of the support rod 420 is smaller than the inner diameter of the first reference tube 200. The support rod 420, the filter plate 400 and the first reference tube 200 are coaxially arranged.

[0121] A support plate 430 is coaxially connected to the end of the support rod 420 away from the filter plate 400. The support plate 430 is circular, and its diameter is larger than that of the support rod 420, but smaller than the inner diameter of the first reference tube 200. A mating rod 410 is installed on the support plate 430.

[0122] The support plate 430 has a clearance hole on the side near the piston 300. The clearance hole is coaxial with the filter plate 400 and extends along the axial direction of the first reference tube 200 and passes through the support rod 420 and the filter plate 400 in sequence.

[0123] A control rod 330 is connected to the side of the piston 300 near the filter plate 400. The control rod 330 is coaxially arranged with the first reference tube 200. The control rod 330 extends along the axial direction of the first reference tube 200 and fits into the relief hole. The diameter of the control rod 330 is adapted to the diameter of the relief hole.

[0124] Please combine Figure 5 and Figure 6 The control lever 330 has an inner cavity 331 located at the end of the control lever 330 away from the piston 300.

[0125] The inner wall of the cavity 331 has a notch 332 through which the side wall of the control rod 330 passes, and a sliding block 333 is accommodated in the notch 332. Part of the sliding block 333 is located in the cavity 331 and part is located in the notch 332.

[0126] The sliding block 333 is fitted with a first elastic element 334 on the side near the inner cavity 331, and the end of the first elastic element 334 away from the sliding block 333 abuts against the inner cavity 331.

[0127] In this embodiment, notches 332 are provided on both opposite sides of the inner cavity 331, and a sliding block 333 is fitted in each notch 332. In particular, the two sliding blocks 333 are fitted together with a first elastic member 334, which abuts against the two sliding blocks 333.

[0128] Under the elastic force of the first elastic element 334, both sliding blocks 333 are pushed outward from the notch 332, thereby causing the sliding blocks 333 to extend beyond the control rod 330 through the notch 332. Each sliding block 333 is fitted with an anti-disengagement block 335 to prevent it from completely disengaging from the notch 332. The anti-disengagement block 335 is located on the side of the sliding block 333 closest to the inner cavity 331. When the anti-disengagement block 335 is in contact with the inner wall of the inner cavity 331, the sliding block 333 cannot extend further outward, and the extension amount of the sliding block 333 reaches its maximum. Figure 5 As shown.

[0129] When the sliding block 333 is subjected to external pressure, it can overcome the elastic force of the first elastic element 334 and move into the inner cavity 331 until the protruding part of the sliding block 333 completely returns to the notch 332, as shown. Figure 6 As shown.

[0130] In this embodiment, a second reference tube is fixedly connected to the end of the first reference tube 200 away from the sealing plate 210, and the inner diameter of the first reference tube 200 is smaller than that of the second reference tube. The second reference tube is coaxially arranged with the first reference tube 200. The end of the second reference tube away from the first reference tube 200 is connected to the bottom of the oil tank of the transformer body 100. That is to say, the first reference tube 200 is connected to the oil tank through the second reference tube.

[0131] The second unidirectional assembly includes: a guide rod 610 and a partition 630.

[0132] The guide rod 610 is fixedly connected to the end face of the first reference tube 200 near the second reference tube and is located in the second reference tube. The guide rod 610 extends axially along the first reference tube 200, and a stop member 620 is connected to the end of the guide rod 610 away from the first reference tube 200. The diameter of the stop member 620 is larger than the diameter of the guide rod 610.

[0133] Multiple guide rods 610 are evenly spaced along the circumference of the first reference tube 200.

[0134] The partition 630 is located in the second reference tube, and the guide rod 610 passes through the partition 630. Along the axial direction of the guide rod 610, the partition 630 is slidably fitted to the guide rod 610. The stop 620 is used to prevent the partition 630 from dislodging from the end of the guide rod 610 away from the first reference tube 200.

[0135] The partition 630 is a circular plate, and its diameter is larger than the inner diameter of the first reference tube 200 and smaller than the inner diameter of the second reference tube. The partition 630 is coaxially arranged with the first reference tube 200.

[0136] The partition 630 has an opening through which the control rod 330 passes, the diameter of which matches the outer diameter of the control rod 330. The control rod 330 is cylindrical, and the opening is circular. When the control rod 330 is fitted into the opening, it is rotatably fitted within the opening along its circumference. Along its axial direction, the control rod 330 can slide along the opening.

[0137] It should be noted that: when the piston 300 moves toward the filter plate 400, after the mating rod 410 extends into the mating hole 310 and contacts the first one-way component, the mating rod 410 can prevent the first one-way component from opening. When the piston 300 moves toward the filter plate 400, when the distance between the piston 300 and the filter plate 400 reaches its minimum value, the control rod 330 passes through the opening, and the sliding block 333 is located on the side of the filter plate 400 away from the piston 300. When the piston 300 moves toward the side away from the filter plate 400, after the mating rod 410 separates from the first one-way component, the control rod 330 separates from the filter plate 400.

[0138] Specifically, to provide a more comprehensive explanation of how it works, we will use an example... Figure 2 The state shown is the initial state. In this state, the driving component is in... Figure 3 In the indicated state, the transmission rack 540 is at its highest position, and correspondingly, the piston rod 340 is also at its highest position. At this time, the distance between the piston 300 and the filter plate 400 reaches its maximum, the piston 300 separates from the mating rod 410, the control rod 330 is located in the clearance hole, and the sliding block 333 of the control rod 330 is pressed against the wall of the clearance hole. Figure 6 As shown, the partition 630 is located at the bottom end of the guide rod 610 and is in contact with the stop 620.

[0139] When the driver is activated, the drive gear 510 rotates in the direction of K1, the first gear 520 rotates in the direction of K2, and the second gear 530 rotates in the direction of K3. The first gear 520 and the second gear 530 rotate synchronously, and the drive rack remains perpendicular to the plug rod 340 and moves with the first gear 520 and the second gear 530.

[0140] During this process, the drive rack drives the piston rod 340 to move downwards, and the piston 300 moves closer to the filter plate 400 while rotating. The piston 300 pushes the insulating oil through the filter plate 400, and the impurities in the insulating oil are filtered out by the filter plate 400.

[0141] After the first gear 520 and the second gear 530 rotate 90°, the drive assembly enters... Figure 7 The state shown is as follows. In this state, the mating hole 310 of the piston 300 is aligned with the mating rod 410, and the top end of the mating rod 410 just enters the mating hole 310. The bottom end of the control rod 330 passes through the filter plate 400 and continues to move towards the partition plate 630, as shown. Figure 8 As shown. At this time, the sliding block 333 of the control lever 330 is in the extended state, as shown. Figure 5 As shown.

[0142] As the actuator continues to operate, the mating rod 410 moves further into the mating hole 310, and the piston 300 can drive the support plate 430, support rod 420, and filter plate 400 to rotate together via the mating rod 410. The filter plate 400 rotates relative to the cleaning plate, which prevents impurities from depositing on the surface of the filter plate 400, reducing the probability of the filter plate 400 being clogged by impurities, and enabling the filter plate 400 to maintain good permeability, thus avoiding any obstruction to the filtration efficiency of the insulating oil.

[0143] After the first gear 520 and the second gear 530 continue to rotate 90°, the drive assembly enters... Figure 9The state shown is as follows. In this state, the transmission rack 540 is at its lowest position, and correspondingly, the piston rod 340 is also at its lowest position. At this time, the distance between the piston 300 and the filter plate 400 is at its minimum, the length of the mating rod 410 extending into the mating hole 310 is at its maximum, and the bottom end of the control rod 330 passes through the partition plate 630, as shown. Figure 10 As shown. Sliding block 333 is in Figure 5 As shown, the sliding block 333 is attached to the side of the partition 630 away from the piston 300.

[0144] In this embodiment, the first unidirectional component is a unidirectional valve (not shown in the figure), which is disposed at one end of the connecting hole 320 near the mating hole 310. The edge of the unidirectional valve near the filter plate 400 is connected to the edge of the connecting hole 320 near the filter plate 400. That is, when the unidirectional valve is opened, the side of the unidirectional valve away from the filter plate 400 separates from the edge of the connecting hole 320.

[0145] When the mating rod 410 is mated into the mating hole 310, the mating rod 410 can stop the one-way valve on the side away from the delivery channel 341, so that the one-way valve is always in contact with the opening of the connecting hole 320 and the one-way valve is in the closed state.

[0146] As the driver continues to operate, the transmission rack 540 begins to move upwards, and the piston 300 begins to move away from the filter plate 400. Since the one-way valve is stopped by the engaging rod 410 and cannot open, and because the partition plate 630 is spaced apart from the first reference tube 200, the insulating oil in the second reference tube will re-enter the first reference tube 200 and backflush the filter plate 400 during this process. This further prevents the filter plate 400 from being clogged by impurities. Simultaneously, the control rod 330 also moves with the piston 300. The control rod 330, using the sliding block 333, drives the partition plate 630 along the guide rod 610 towards the filter plate 400; that is, the partition plate 630 is lifted by the control rod 330.

[0147] When the first gear 520 and the second gear 530 continue to rotate a certain angle (less than 90°, the specific angle can be flexibly set according to actual needs), the mating rod 410 is still in the mating hole 310, but the mating rod 410 is just separated from the one-way valve, such as Figure 11 As shown. At this time, the control lever 330 raises the partition 630 to be in contact with the end wall of the first reference tube 200 near the second reference tube.

[0148] As the control lever 330 continues to move, since the partition 630 cannot move further, the sliding block 333 will be pushed into the notch 332, thereby separating the control lever 330 from the partition 630. At the same time, the one-way valve opens smoothly, and insulating oil can enter the first reference tube 200 from the piston 300. Meanwhile, the partition 630 seals the end of the first reference tube 200 near the second reference tube, and the insulating oil in the second reference tube no longer continues to backflow.

[0149] Specifically, the diameter of the opening in the partition 630 can be set to be much smaller than the diameter of the connecting hole 320, for example, the diameter of the opening can be 1 / 20 to 1 / 10 of the diameter of the connecting hole 320, and it is not limited to this. In this way, the return flow of insulating oil at the opening can be ignored.

[0150] Alternatively, the opening in the partition 630 may be provided with a valve (not shown in the figure). The valve is located on the side of the partition 630 away from the filter plate 400. When the control rod 330 passes through the opening, the control rod 330 pushes the valve open. When the control rod 330 separates from the filter plate 400, the valve re-attaches to the partition 630 and closes the opening.

[0151] In this way, after the connecting hole 320 is opened, as the piston 300 continues to move away from the filter plate 400, the partition 630 will always be in contact with the end of the first reference tube 200.

[0152] When the first gear 520 and the second gear 530 are opposite Figure 9 After the state continues to rotate 90°, the drive component enters... Figure 12 The state shown indicates that the mating rod 410 is about to be completely withdrawn from the mating hole 310.

[0153] As the actuator continues to operate, the piston 300 continues to move away from the filter plate 400, and the insulating oil continues to enter the first reference tube 200 through the connecting hole 320. The partition plate 630 remains attached to the end of the first reference tube 200.

[0154] After the first gear 520 and the second gear 530 continue to rotate 90°, the drive assembly enters... Figure 3 The state shown indicates that the drive component has returned to its initial state. Correspondingly, piston 300 is in... Figure 13 As shown in the diagram, partition 630 will begin to fall back along the guide rail.

[0155] As the actuator continues to operate, piston 300 moves closer to filter plate 400. Under hydraulic pressure, the one-way valve at the connecting hole 320 closes, and piston 300 pushes the insulating oil for filtration. Baffle 630 is accelerated and pushed to the bottom of guide rod 610. In this way, circulation is achieved.

[0156] Through the above design, the flow of insulating oil is controlled by the mating rod 410, the one-way valve of the connecting hole 320, the control rod 330 and the partition 630, which further reduces the risk of the filter plate 400 being blocked.

[0157] Furthermore, please combine Figures 14-16 The cleaning component 220 is a cover, which covers the filter plate 400, and the cleaning component 220 and the filter plate 400 enclose a space.

[0158] The cleaning component 220 has an opening 221 on one side that communicates with its internal space. Specifically, when the filter plate 400 is driven to rotate by the piston 300, the insulating oil is also agitated, causing the insulating oil to flow circumferentially along the first reference tube 200. Along the circumferential flow direction of the insulating oil in the first reference tube 200 (e.g., ... Figure 16 (As shown in the K4 direction), opening 221 is located on the side of the cleaning component 220 that was impacted by insulating oil, such as... Figure 16 As shown.

[0159] The opening 221 is formed by the cleaning element 220 extending inward from the edge of the filter plate 400 near the filter plate, and the opening 221 also extends toward the side away from the central axis of the first reference tube 200.

[0160] The cleaning component 220 and the support rod 420 are spaced apart. The cleaning component 220 is fitted with a plate 222 for closing the opening 221. The edge of the plate 222 near the support rod 420 is hinged to the edge of the opening 221 near the support rod 420. The plate 222 is located inside the cleaning component 220.

[0161] The rotation axis of the plate 222 is parallel to the central axis of the first reference tube 200. The plate 222 is fitted with a torsion spring (not shown in the figure) so that, in its natural state, the end of the plate 222 away from its hinge end fits against the inner wall of the cleaning component 220. Figure 16 As shown.

[0162] The side wall of the cleaning component 220 away from the opening 221 is made of a mesh plate, the mesh aperture of which is less than or equal to the filter aperture of the filter plate 400.

[0163] The filter plate 400 has mounting holes arranged axially along the first reference tube 200. The mounting holes include a first hole section 440, a second hole section 450, and a third hole section 460 connected in sequence. The first hole section 440 is located on the side of the filter plate 400 near the piston 300. The diameters of both the first hole section 440 and the third hole section 460 are smaller than the diameter of the second hole section 450.

[0164] A mating post 470 is slidably fitted within the mounting hole, and the diameter of the mating post 470 matches the diameter of the first hole section 440. An end block 480 is fixedly connected to one end of the mating post 470 near the second hole section 450. The diameter of the end block 480 is larger than the diameter of the first hole section 440, and the end block 480 is located within the second hole section 450. Along the axial direction of the mounting hole, the mating post 470 is slidably fitted within the first hole section 440, and the end block 480 is slidably fitted within the second hole section 450.

[0165] The mating post 470 is fitted with a second elastic member 490. The second elastic member 490 abuts against the end wall of the second hole section 450 near the third hole section 460 and the end block 480, so that in the natural state, the second elastic member 490 pushes the mating post 470 to extend to the side of the filter plate 400 near the piston 300, and makes the end block 480 fit against the end wall of the second hole section 450 near the first hole section 440.

[0166] The exposed portion of the mating column 470 is hemispherical and smoothed.

[0167] When the filter plate 400 rotates, the mating post 470 can contact the end of the plate body 222 away from the support rod 420. When the mating post 470 contacts the plate body 222, it can push the plate body 222 into the cleaning element 220, thereby opening the opening 221. Figure 17 As shown. In this way, impurities located near the filter plate 400 can smoothly enter the cleaning component 220 and be collected by the cleaning component 220.

[0168] As the filter plate 400 continues to rotate, the cooperating column 470 causes the opening of the plate 222 to increase, eventually "passing over" the plate 222 from its free end, as... Figure 18 As shown. At this time, the plate 222 begins to reset under the action of the torsion spring, but because the insulating oil will continue to impact the plate 222, the reset speed of the plate 222 will be further reduced, which is more conducive to the impurities near the filter plate 400 entering the cleaning component 220 more fully.

[0169] As the filter plate 400 continues to rotate, the mating post 470 will contact the side wall of the cleaning component 220 (cover) away from the opening 221. This side wall can push the exposed part of the mating post 470 into the mounting hole (the second elastic element 490 is compressed), so that the mating post 470 can smoothly avoid this side wall, allowing the filter plate 400 to rotate smoothly.

[0170] With the above design, the column 470 can intermittently push the plate 222 to open the opening 221, allowing the cleaning component 220 to collect impurities more fully.

[0171] When the filter plate 400 stops rotating, the plate body 222 will be fully reset under the action of the torsion spring, thereby closing the opening 221 and preventing impurities from leaving the cleaning part 220 again. This can more effectively ensure the filtration efficiency of other parts of the filter plate 400.

[0172] Correspondingly, at this time, the vision component can be set within the cleaning component 220.

[0173] It should be noted that when the filter plate 400 rotates relative to the first reference tube 200, it is a damped rotation, which ensures that the filter plate 400 can stop rotating immediately after the mating rod 410 separates from the piston 300, thereby ensuring the accuracy of the mating of the mating rod 410 and the mating hole 310 in the next operation.

[0174] It should be noted that when the driver component is from Figure 7 The state shown moves to Figure 12 During the process shown, the filter plate 400 is driven by the piston 300. Throughout this process, the filter plate 400 is driven unidirectionally by the piston 300 along the K4 direction, ensuring the stability of the cleaning component 220 in collecting impurities.

[0175] Alternatively, the first reference tube 200 may also be connected to a slag discharge pipe 223. The slag discharge pipe 223 is connected to and passes through the side wall of the first reference tube 200. The slag discharge pipe 223 communicates with the internal space of the cleaning component 220. The slag discharge pipe 223 is equipped with a control valve (not shown in the figure).

[0176] When the visual component observes that there are many impurities inside the cleaning component 220, the control valve can be opened briefly to flush out the impurities inside the cleaning component 220 using insulating oil.

[0177] It should be noted that the top end of the piston rod 340 (the end furthest from the piston 300) can be connected to a connecting pipe 700. The connecting pipe 700 is coaxial with the piston rod 340, and the connecting pipe 700 and the piston rod 340 are rotatably engaged and provide a rotational seal. The connecting pipe 700 is connected to the conveying channel 341, and the rotation axis of the connecting pipe 700 relative to the piston rod 340 coincides with the rotation axis of the piston rod 340 relative to the first reference tube 200. The connecting pipe 700 is connected to the top of the oil tank through a flexible connecting pipe. During the rotation of the piston rod 340, the piston rod 340 can rotate relative to the connecting pipe 700, thereby preventing the flexible connecting pipe from tangling or being damaged.

[0178] In summary, the self-monitoring transformer provided in this application embodiment can continuously and autonomously monitor the actual condition of the transformer insulating oil, avoiding the drawbacks of manual monitoring and effectively improving the operational safety of the transformer.

[0179] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A self-monitoring transformer, characterized in that, include: Transformer body and monitoring mechanism; The monitoring mechanism includes: a first reference tube, a piston, a stopcock, a filter plate, a vision component, and a processor; One end of the first reference tube is sealed by a sealing plate; the piston is fitted into the first reference tube, and the plug rod is connected to the side of the piston near the sealing plate, and the plug rod passes through the sealing plate; The filter plate is disposed inside the first reference tube, and the filter plate is located on the side of the piston away from the piston rod; A conveying channel is formed on the end face of the stopper rod away from the piston. The conveying channel extends along the stopper rod and extends to the piston. The area between the piston and the filter plate is in communication with the conveying channel. The end of the conveying channel away from the piston is connected to the top of the oil tank of the transformer body, and the end of the first reference tube away from the sealing plate is connected to the bottom of the oil tank of the transformer body. The conveying channel is provided with a first one-way component so that the insulating oil in the conveying channel can only flow to the area between the piston and the filter plate; The first reference tube is provided with a second one-way component at the end away from the sealing plate, so that the insulating oil in the first reference tube can only flow out from the end of the first reference tube away from the sealing plate; The piston rod is reciprocated by a drive assembly; The vision component is disposed inside the first reference tube, and the vision component is located on the side of the filter plate near the piston and is disposed close to the filter plate; The vision component is electrically connected to the processor, and the processor is used to determine the health of the insulating oil in the transformer body based on the image data acquired by the vision component.

2. The self-monitoring transformer according to claim 1, characterized in that, The drive assembly drives the piston rod to reciprocate along the axial direction of the first reference tube while also driving the piston rod to rotate. The piston has a mating hole on the side near the filter plate, and the mating hole extends along the axial direction of the first reference tube. The filter plate is rotatably fitted to the first reference tube, and a fitting rod is connected to the side of the filter plate near the piston. The fitting rod extends along the axial direction of the first reference tube; along the axial direction of the first reference tube, the fitting rod slides into the fitting hole. A cleaning component is fixedly connected to the inner wall of the first reference tube. The cleaning component is located on the side of the filter plate near the piston and is in contact with the filter plate.

3. The self-monitoring transformer according to claim 2, characterized in that, The drive assembly includes: a driver, a first gear, a second gear, and a transmission rack; The first gear and the second gear are spaced apart and their rotation axes are parallel. The power output section of the driver is connected to a drive gear, which engages between the first gear and the second gear, and both the first gear and the second gear mesh with the drive gear. The rotational axes of the drive gear, the first gear, and the second gear are located in the same plane, and this plane is perpendicular to the piston rod. One end of the transmission rack is eccentrically hinged to the side wall of the first gear, and the other end is eccentrically hinged to the side wall of the second gear. The transmission rack is arranged perpendicular to the plug rod. The outer side wall of the plug rod has a first annular flange and a second annular flange spaced apart, and the outer side wall of the plug rod also has an external toothed ring, which is located between the first annular flange and the second annular flange; The transmission rack is fitted between the first annular flange and the second annular flange, and the transmission rack meshes with the outer gear ring.

4. The self-monitoring transformer according to claim 3, characterized in that, The mating hole and the conveying channel are connected by a connecting hole, and the first unidirectional component is disposed in the connecting hole; A support rod is connected to the side of the filter plate near the piston. The support rod is coaxially arranged with the filter plate. A support plate is coaxially connected to the end of the support rod away from the filter plate. The mating rod is installed on the support plate. The support plate has a clearance hole on the side near the piston. The clearance hole is coaxial with the filter plate and extends along the axial direction of the first reference tube and passes through the support rod and the filter plate in sequence. A control rod is connected to the side of the piston near the filter plate. The control rod extends along the axial direction of the first reference tube and fits into the clearance hole. The control lever has an inner cavity, and the inner sidewall of the inner cavity has a notch that penetrates the sidewall of the control lever. A sliding block is accommodated in the notch. A first elastic element is fitted to the side of the sliding block near the inner cavity, and the end of the first elastic element away from the sliding block abuts against the inner cavity. The end of the first reference tube away from the sealing plate is connected to a second reference tube, and the inner diameter of the first reference tube is smaller than that of the second reference tube; The second unidirectional component includes: a guide rod and a partition; The guide rod is connected to the end face of the first reference tube near the second reference tube. The guide rod extends along the axial direction of the first reference tube, and a stop is connected to the end of the guide rod away from the first reference tube. The partition is located inside the second reference tube, and the guide rod passes through the partition; the partition is slidably fitted to the guide rod along the axial direction of the guide rod. The partition plate has an opening for the control rod to pass through; When the piston moves toward the filter plate, when the mating rod extends into the mating hole and contacts the first one-way component, the mating rod can prevent the first one-way component from opening. When the piston moves toward the filter plate, when the distance between the piston and the filter plate reaches a minimum value, the control rod passes through the opening, and the sliding block is located on the side of the filter plate away from the piston. When the piston moves away from the filter plate, the control rod separates from the filter plate after the mating rod separates from the first one-way assembly.

5. The self-monitoring transformer according to claim 4, characterized in that, The opening is provided with a valve, and when the control rod passes through the opening, the control rod pushes the valve open; When the piston moves away from the filter plate, the valve closes when the control rod separates from the filter plate.

6. The self-monitoring transformer according to claim 4, characterized in that, The cleaning component is a cover, which covers the filter plate; The cleaning component has an opening on one side that communicates with its internal space. The opening is formed by the edge of the cleaning component near the filter plate extending inward. The cleaning component is fitted with a plate for closing the opening, the edge of the plate near the support rod is hinged to the edge of the opening near the support rod, and the plate is located inside the cleaning component; The rotation axis of the plate is parallel to the central axis of the first reference tube. The plate is equipped with a torsion spring so that, in its natural state, the end of the plate away from its hinge end is attached to the inner wall of the cleaning component. The sidewall of the cleaning component away from the opening is made of a mesh plate, the mesh aperture of which is smaller than or equal to the filter aperture of the filter plate. The filter plate has an installation hole arranged along the axial direction of the first reference tube. A mating post is slidably fitted in the installation hole. The mating post is fitted with a second elastic element so that, in its natural state, part of the mating post extends to the side of the filter plate near the piston. When the mating post contacts the plate, the mating post pushes the plate toward the cleaning component to open the opening; When the mating post contacts the side wall of the cleaning component away from the opening, the cleaning component pushes the mating post into the mounting hole.

7. The self-monitoring transformer according to claim 6, characterized in that, The first reference tube is also connected to a slag discharge pipe, which communicates with the internal space of the cleaning component, and the slag discharge pipe is equipped with a control valve.

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