Online monitoring device for dissolved gas in transformer oil

Abstract

The invention belongs to the technical field of online monitoring devices for dissolved gas in transformer oil, and particularly relates to an online monitoring device for dissolved gas in transformer oil, which comprises a transformer box, sliding rods are fixedly connected to the upper side and the lower side of an inner cavity of the transformer box, a lifting plate is slidably connected to the sliding rods, and a monitoring sensor is fixedly connected to one side of the lifting plate. The lifting plate is further provided with a marking assembly. The marking assembly comprises a sleeve fixedly connected to one side of the lifting plate, first connecting rods are rotationally arranged on the two sides of the upper end face of the lifting plate, and second connecting rods are rotationally arranged at one ends of the first connecting rods. By means of the marking assembly, when a monitoring sensor monitors that gas data is abnormal at a certain height, a sponge ball can draw a circle on the surface of the height corresponding to marking paper, and a worker can observe the height of the circle on the marking paper and the diameter of the circle; therefore, the height of the abnormal gas and the abnormal degree of the gas can be more intuitively positioned.

Description

Technical Field

[0001] The invention belongs to the technical field of online monitoring devices for dissolved gas in transformer oil, in particular to an online monitoring device for dissolved gas in transformer oil. Background Art

[0002] As the main equipment of the power system, the operational reliability of the transformer directly affects the safety and stability of the power system. The composition and content of the dissolved gas in the transformer oil can effectively reflect the insulation fault situation inside the operating transformer. By regularly monitoring the dissolved gas in the transformer oil online, the operating status of the transformer can be grasped in a timely manner, and potential faults can be discovered and tracked.

[0003] The patent with announcement number CN221993458U discloses an online monitoring device for dissolved gas in main transformer oil, which relates to the technical field of online monitoring of dissolved gas in main transformer oil, including a transformer box, a first threaded rod is rotatably connected between the top surface and the inner bottom surface of the transformer box, a lifting block is threadedly connected to the first threaded rod, the front surface of the lifting block is fixedly connected to a support plate, the right surface of the support plate is fixedly connected to a guide rod, and a movable plate is slidably connected to the guide rod, and a monitoring sensor is fixedly connected to the movable plate. The patent can drive the monitoring sensor to move vertically through the vertical movement of the lifting block, and can drive the monitoring sensor to move horizontally through the horizontal movement of the movable plate, so that the monitoring sensor can monitor the gas dissolved in the transformer oil at different positions in the transformer box, so that the operating status of the transformer can be timely analyzed and grasped according to the data of the dissolved gas in the transformer oil at different positions in the transformer box, and safety hazards can be eliminated in time.

[0004] However, the above technical solution still has the following deficiencies in practical application: By driving a monitoring sensor up and down inside the transformer box, it can monitor dissolved gases in the transformer oil at different heights within the transformer box. The monitoring sensor then transmits the monitoring information to the data processing center for analysis and diagnosis, allowing timely analysis and understanding of the transformer's operating status. Although this method can monitor dissolved gases in the transformer oil at different heights within the transformer box, when gas data is abnormal, staff usually need to open the transformer box for special testing and manual sampling to diagnose the cause of the abnormality in detail. However, the information monitored by the monitoring sensor alone cannot clearly locate the height at which the abnormal gas appears, which affects the efficiency of subsequent special testing and manual sampling. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background art, the present invention proposes an online monitoring device for dissolved gas in transformer oil.

[0006] The technical solution adopted by the present invention to solve the technical problem is: an online monitoring device for dissolved gas in transformer oil, comprising a transformer box, wherein the upper and lower sides of the inner cavity of the transformer box are fixedly connected to sliding rods, the sliding rods are slidably connected to a lifting plate, one side of the lifting plate is fixedly connected to a monitoring sensor, and the lifting plate is also provided with a marking component; The marking assembly includes a sleeve fixedly connected to one side of the lifting plate, and both sides of the upper end surface of the lifting plate are rotatably provided with a connecting rod 1, one end of the connecting rod 1 is rotatably provided with a connecting rod 2, and one end of the connecting rod 2 is rotatably provided with an adjustment plate, and both ends of the lower side of the adjustment plate are rotatably provided with a flip block, and one side of the flip block is rotatably provided with a shell, and one side of the shell is radially distributed and slidably connected to a plurality of sliders through a slide groove, and one side of the slider is fixedly connected to a sponge ball; Rollers are rotatably provided at both upper and lower ends of one side of the inner cavity of the transformer box, and a same marking paper is wound around the two rolls.

[0007] Preferably, one end of the lifting plate is threadedly connected to a threaded rod 1, both ends of the threaded rod 1 are rotatably set on the transformer box, one side of the upper end surface of the transformer box is fixedly connected to a motor 1, and the output end of the motor 1 is fixedly connected to one end of the threaded rod 1.

[0008] Preferably, a nozzle is passed through and fixedly connected to one side of the sleeve, one end of the nozzle is connected to a connecting pipe, one end of the connecting pipe is connected to a pump body, one side of the lifting plate is fixedly connected to a paint box, the feed end of the pump body is connected to one side of the paint box, and the pump body is fixedly connected to one side of the lifting plate.

[0009] Preferably, one side of the upper end of the lifting plate is fixedly connected to motor 2, and the output end of motor 2 is fixedly connected to one end of connecting rod 1.

[0010] Preferably, one side of the lower end of the adjustment plate is fixedly connected to motor three, the output end of motor three is fixedly connected to the flip block, one side of the flip block is fixedly connected to motor four, and the output end of motor four is fixedly connected to one side of the shell.

[0011] Preferably, a connecting rod five is rotatably provided in the middle of one side of the inner cavity of the shell, a connecting rod four is rotatably provided at one end of the slider, one end of the connecting rod four is rotatably connected to one end of the connecting rod five, a motor seven is fixedly connected to the middle of one side of the inner cavity of the shell, and the output end of the motor seven is fixedly connected to the connecting rod five.

[0012] Preferably, the upper and lower ends of one side of the inner cavity of the transformer box are fixedly connected to the motor 6, and the output end of the motor 6 is fixedly connected to one end of the reel.

[0013] Preferably, a waste liquid tank is fixedly connected to one side of the outer wall of the transformer box, a hose is connected to one side of the sleeve, and the other end of the hose passes through the transformer box and is connected to the waste liquid tank.

[0014] Preferably, the lifting plate is further provided with an anti-flow component; The anti-flow assembly includes a connecting plate fixedly connected to one side of the lifting plate, one end of the connecting plate is fixedly connected to a cylinder, the piston end of the cylinder is fixedly connected to one side of a fixed ring, and a plurality of radial rods are evenly distributed and slidably connected to the fixed ring in the radial direction, and an elastic pad is fixedly connected between the ends of two adjacent radial rods.

[0015] Preferably, one end of the radial rod on one side is threadedly connected to the threaded rod 2, one end of the threaded rod 2 is rotatably set on the fixed ring, one side of the outer ring of the fixed ring is fixedly connected to the motor 5, the output end of the motor 5 is fixedly connected to the one end of the threaded rod 2, the outer ring of the fixed ring is rotatably set with a rotating ring, one end of the radial rod is rotatably set with the connecting rod 3, and one end of the connecting rod 3 is rotatably set on the rotating ring.

[0016] The beneficial effects of the present invention are as follows: 1. The online monitoring device for dissolved gas in transformer oil described in the present invention utilizes a marking component. When the monitoring sensor detects abnormal gas data at a certain height, the sponge ball will draw a circle on the surface of the height corresponding to the marking paper, and the control system will adjust the diameter of the drawn circle according to the degree of abnormal gas data. By observing the height and diameter of the circle on the marking paper, the staff can more intuitively locate the height at which the abnormal gas appears and the degree of gas abnormality, thereby improving the efficiency of subsequent special detection and manual sampling.

[0017] 2. The device for online monitoring of dissolved gas in transformer oil described in the present invention utilizes an anti-flow component. Before the sponge ball draws a circle on the surface of the marking paper, multiple radial rods and multiple elastic pads cooperate with each other to form a ring that matches the size of the circle to be drawn. The sponge ball is then driven to draw a circle along the inner edge of the ring. When the pigment flows on the surface of the marking paper, the pigment will only be concentrated in the ring, thereby avoiding the situation where the pigment adsorbed by the sponge ball flows on the surface of the marking paper when the sponge ball contacts the marking paper, resulting in the blank area of ​​the marking paper being coated with pigment, affecting the subsequent staff's judgment of the mark. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of a partial cross-section of the three-dimensional structure of the transformer box of the present invention; Figure 2 It is a schematic diagram of the complete three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure at the lifting plate; Figure 4 This is a schematic diagram of the three-dimensional structure at another perspective of the lifting plate; Figure 5 It is a schematic diagram of the three-dimensional structure of the fixed ring; Figure 6 yes Figure 5 A partial enlarged view of the middle part; Figure 7 It is a schematic diagram of the partial three-dimensional structure of a half-section of the sleeve; Figure 8 It is a schematic diagram of the three-dimensional structure of the reel.

[0020] In the figure: 1. Transformer box; 2. Motor 1; 3. Threaded rod 1; 4. Sliding rod; 5. Marking paper; 6. Reel; 7. Lifting plate; 8. Paint box; 9. Monitoring sensor; 10. Connecting pipe; 11. Connecting rod 1; 12. Motor 2; 13. Connecting rod 2; 14. Adjusting plate; 15. Sleeve; 16. Motor 3; 17. Connecting plate; 18. Fixed ring; 19. Pump body; 20. Hose; 21. Motor 4; 22. Flip block; 23. Housing; 24. Cylinder; 25. Rotating ring; 26. Elastic pad; 27. Radial rod; 28. Connecting rod 3; 29. ​​Motor 5; 30. Threaded rod 2; 31. Motor 6; 32. Nozzle; 33. Motor 7; 34. Sponge ball; 35. Sliding block; 36. Connecting rod 4; 37. Connecting rod 5; 38. Waste liquid tank. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Please refer to Figures 1-8 The present invention provides a technical solution: an online monitoring device for dissolved gas in transformer oil, comprising a transformer box 1, wherein slide bars 4 are fixedly connected to the upper and lower sides of the inner cavity of the transformer box 1, and a lifting plate 7 is slidably connected to the slide bars 4. A monitoring sensor 9 is fixedly connected to one side of the lifting plate 7, and a marking component is also provided on the lifting plate 7; The marking assembly includes a sleeve 15 fixedly connected to one side of the lifting plate 7. Connecting rod 11 is rotatably provided on both sides of the upper end surface of the lifting plate 7. Connecting rod 11 is rotatably provided on one end of connecting rod 11. An adjusting plate 14 is rotatably provided on one end of connecting rod 13. Flipping blocks 22 are rotatably provided on both ends of the lower side of the adjusting plate 14. A shell 23 is rotatably provided on one side of the flipping block 22. A plurality of sliders 35 are radially distributed on one side of the shell 23 and slidably connected through a chute. A sponge ball 34 is fixedly connected to one side of the slider 35. Reels 6 are rotatably provided at both upper and lower ends of one side of the inner cavity of the transformer box 1 , and a same marking paper 5 is wound around the two reels 6 .

[0023] In this embodiment, Figures 1-4 、 Figure 7 、 Figure 8 As shown, one end of the lifting plate 7 is threadedly connected to a threaded rod 3, both ends of the threaded rod 3 are rotatably set on the transformer box 1, one side of the upper end surface of the transformer box 1 is fixedly connected to a motor 2, and the output end of the motor 2 is fixedly connected to one end of the threaded rod 3.

[0024] A nozzle 32 is passed through and fixedly connected to one side of the sleeve 15, one end of the nozzle 32 is connected to a connecting pipe 10, one end of the connecting pipe 10 is connected to a pump body 19, one side of the lifting plate 7 is fixedly connected to a paint box 8, the feed end of the pump body 19 is connected to one side of the paint box 8, and the pump body 19 is fixedly connected to one side of the lifting plate 7.

[0025] One side of the upper end of the lifting plate 7 is fixedly connected to a second motor 12 , and the output end of the second motor 12 is fixedly connected to one end of the first connecting rod 11 .

[0026] One side of the lower end of the adjustment plate 14 is fixedly connected to the motor three 16, the output end of the motor three 16 is fixedly connected to the flip block 22, one side of the flip block 22 is fixedly connected to the motor four 21, and the output end of the motor four 21 is fixedly connected to one side of the shell 23.

[0027] A connecting rod five 37 is rotatably provided in the middle of one side of the inner cavity of the shell 23, a connecting rod four 36 is rotatably provided at one end of the slider 35, one end of the connecting rod four 36 is rotatably connected to one end of the connecting rod five 37, and a motor seven 33 is fixedly connected to the middle of one side of the inner cavity of the shell 23, and the output end of the motor seven 33 is fixedly connected to the connecting rod five 37.

[0028] The upper and lower ends of one side of the inner cavity of the transformer box 1 are fixedly connected to the motor 6 31, and the output end of the motor 6 31 is fixedly connected to one end of the reel 6.

[0029] A waste liquid tank 38 is fixedly connected to one side of the outer wall of the transformer box 1 , a hose 20 is connected to one side of the sleeve 15 , and the other end of the hose 20 passes through the transformer box 1 and is connected to the waste liquid tank 38 .

[0030] Specifically, in the prior art, by driving the monitoring sensor 9 to move up and down inside the transformer box 1, the gas dissolved in the transformer oil at different heights inside the transformer box 1 can be monitored. The monitoring sensor 9 then transmits the monitoring information to the data processing center for analysis and diagnosis, so as to timely analyze and grasp the operating status of the transformer. Although this method can monitor the gas dissolved in the transformer oil at different heights inside the transformer box 1, under normal circumstances, when the gas data is abnormal, the staff needs to open the transformer box 1 for special inspection and manual sampling in order to diagnose the cause of the abnormality in detail. However, it is difficult to intuitively locate the height at which the abnormal gas appears based solely on the information monitored by the monitoring sensor 9, which affects the efficiency of subsequent special inspections and manual sampling.

[0031] Therefore, to address the aforementioned issues, this embodiment, when in use, periodically activates motor 1 (2) and monitoring sensor 9. Motor 1 (2) drives threaded rod 1 (3) to rotate, causing lift plate 7 to move up and down. Monitoring sensor 9 can then be used to monitor dissolved gas in the transformer oil within transformer box 1. Furthermore, lift plate 7 and its structures do not come into contact with the transformer oil. This can be avoided using common technical means by those skilled in the art, and will not be elaborated upon here.

[0032] When the monitoring sensor 9 detects abnormal gas data at a certain height, the lifting plate 7 stops moving, and the paint inside the paint box 8 is pumped out by the pump body 19. After passing through the connecting pipe 10, it is sprayed from the nozzle 32 onto the surface of the sponge balls 34. In addition, the motor 21 drives the housing 23 to rotate, adjusting the position of the sponge balls 34 so that each sponge ball 34 is aligned with the nozzle 32 in turn. In addition, due to the obstruction of the sleeve 15, the sprayed paint does not flow into the transformer box 1, but flows into the waste liquid tank 38 after passing through the hose 20. After each sponge ball 34 has absorbed the pigment, motor 2 12 rotates connecting rod 1 11, which, driven by connecting rods 1 11 and 2 13, allows housing 23 to be removed from sleeve 15. Motor 3 16 then rotates flip block 22 180 degrees, directing the sponge balls 34 toward the marking paper 5 and forcing them to adhere to it. Housing 23 then rotates again, allowing multiple sponge balls 34 to draw circles on the marking paper 5. Furthermore, depending on the degree of gas data anomaly, the control system uses motor 7 33 to rotate connecting rod 5 37, which in turn causes multiple sliders 35 to slide simultaneously under the action of connecting rods 4 36. Adjusting the distance between the sponge balls 34 and the axis of housing 23 adjusts the diameter of the circles drawn by the sponge balls 34. When the staff opens the door of the transformer box 1, they can more intuitively locate the height of the abnormal gas and the degree of gas abnormality by observing the height of the circle on the marking paper 5 and the diameter of the circle, which is conducive to improving the efficiency of subsequent special inspections and manual sampling. In addition, since there are multiple sponge balls 34 and they all absorb the pigment, the circle drawing work can be ensured to proceed smoothly, avoiding the situation where only a single sponge ball 34 is provided and the sponge ball 34 does not evenly absorb the pigment, resulting in the circle drawing work not being carried out normally. In addition, when the monitoring work is carried out again in the future, the two motors 6 31 can be used to drive the two reels 6 to rotate simultaneously, and the marked part of the marking paper 5 can be rolled up, and then the blank part can be used.

[0033] In this embodiment, Figure 4-Figure 6 As shown, an anti-flow component is also provided on the lifting plate 7; The anti-flow component includes a connecting plate 17 fixedly connected to one side of the lifting plate 7, one end of the connecting plate 17 is fixedly connected to a cylinder 24, the piston end of the cylinder 24 is fixedly connected to one side of a fixed ring 18, and a plurality of radial rods 27 are evenly distributed and slidably connected to the fixed ring 18 in the radial direction, and an elastic pad 26 is fixedly connected between the ends of two adjacent radial rods 27.

[0034] One end of the radial rod 27 on one side is threadedly connected to the threaded rod 2 30, and one end of the threaded rod 2 30 is rotatably set on the fixed ring 18. One side of the outer ring of the fixed ring 18 is fixedly connected to the motor 5 29, and the output end of the motor 5 29 is fixedly connected to one end of the threaded rod 2 30. The outer ring of the fixed ring 18 is rotatably set with a rotating ring 25, and one end of the radial rod 27 is rotatably set with a connecting rod 3 28, and one end of the connecting rod 3 28 is rotatably set on the rotating ring 25.

[0035] Specifically, in the above embodiment, although the marking paper 5 can be drawn by allowing the sponge ball 34 to absorb the pigment, when the sponge ball 34 comes into contact with the marking paper 5, the pigment absorbed by the sponge ball 34 may flow onto the surface of the marking paper 5, thereby causing the blank areas of the marking paper 5 to be coated with pigment, affecting the subsequent judgment of the marking by the staff; Therefore, in order to solve the above problems, when this embodiment is in use, after the control system adjusts the position of the sponge ball 34 according to the abnormal degree of the gas, the motor five 29 drives the threaded rod two 30 to rotate, so that the radial rod 27 on one side slides on the fixed ring 18, and the other radial rods 27 can also slide on the fixed ring 18 under the transmission of the connecting rod three 28 and the rotating ring 25. Since multiple radial rods 27 and multiple elastic pads 26 cooperate with each other to form a circular ring, and when the radial rod 27 moves, the elastic pad 26 will also be deformed due to elasticity until the size of the circular ring matches the size of the circle to be drawn, and then the cylinder 24 is used to drive the fixed ring 18 to move horizontally, so that the end of the radial rod 27 fits with the marking paper 5. Then, the sponge ball 34 is driven to draw a circle along the inner edge of the ring. When the paint flows on the surface of the marking paper 5, the paint will only be concentrated in the ring, thereby avoiding the situation where the paint adsorbed by the sponge ball 34 flows on the surface of the marking paper 5 when the sponge ball 34 contacts the marking paper 5, causing the blank area of ​​the marking paper 5 to be coated with paint, affecting the subsequent staff's judgment of the mark.

[0036] Working Principle: By timing the start of motor 12 and monitoring sensor 9, motor 12 drives threaded rod 13 to rotate, causing lift plate 7 to move up and down. Monitoring sensor 9 can then be used to monitor dissolved gases in the transformer oil inside transformer box 1. Furthermore, lift plate 7 and its structures do not come into contact with the transformer oil. This can be circumvented using common technical means by those skilled in the art and will not be elaborated upon here. When monitoring sensor 9 detects abnormal gas data at a certain height, lift plate 7 stops moving, pump body 19 draws the paint from paint box 8, and sprays it from nozzle 32 onto the surface of sponge balls 34 via connecting pipe 10. Furthermore, motor 21 drives housing 23 to rotate, adjusting the position of sponge balls 34 so that each sponge ball 34 is aligned with nozzle 32 in turn. Furthermore, due to the obstruction of sleeve 15, the sprayed paint does not flow into transformer box 1, but instead flows through hose 20 into waste liquid tank 38. After each sponge ball 34 has absorbed the pigment, motor 2 12 rotates connecting rod 1 11, which, driven by connecting rods 1 11 and 2 13, allows housing 23 to be removed from sleeve 15. Motor 3 16 then rotates flip block 22 180 degrees, directing the sponge balls 34 toward the marking paper 5 and forcing them to adhere to it. Housing 23 then rotates again, allowing multiple sponge balls 34 to draw circles on the marking paper 5. Furthermore, depending on the degree of gas data anomaly, the control system uses motor 7 33 to rotate connecting rod 5 37, which in turn causes multiple sliders 35 to slide simultaneously under the action of connecting rods 4 36. Adjusting the distance between the sponge balls 34 and the axis of housing 23 adjusts the diameter of the circles drawn by the sponge balls 34. When the staff opens the door of the transformer box 1, they can more intuitively locate the height of the abnormal gas and the degree of gas abnormality by observing the height of the circle on the marking paper 5 and the diameter of the circle, which is conducive to improving the efficiency of subsequent special inspections and manual sampling. In addition, since there are multiple sponge balls 34 and they all absorb the pigment, the circle drawing work can be ensured to proceed smoothly, avoiding the situation where only a single sponge ball 34 is provided and the sponge ball 34 does not evenly absorb the pigment, resulting in the circle drawing work not being carried out normally. In addition, when the monitoring work is carried out again in the future, the two motors 6 31 can be used to drive the two reels 6 to rotate simultaneously, and the marked part of the marking paper 5 can be rolled up, and then the blank part can be used. After the control system adjusts the position of the sponge ball 34 according to the degree of gas abnormality, the motor five 29 drives the threaded rod two 30 to rotate, so that the radial rod 27 on one side slides on the fixed ring 18, and the other radial rods 27 can also slide on the fixed ring 18 under the transmission of the connecting rod three 28 and the rotating ring 25. Since multiple radial rods 27 and multiple elastic pads 26 cooperate with each other to form a circular ring, and when the radial rod 27 moves, the elastic pad 26 will also be deformed due to elasticity until the size of the circular ring matches the size of the circle to be drawn, and then the cylinder 24 is used to drive the fixed ring 18 to move horizontally, so that the end of the radial rod 27 fits with the marking paper 5.Then, the sponge ball 34 is driven to draw a circle along the inner edge of the ring. When the paint flows on the surface of the marking paper 5, the paint will only be concentrated in the ring, thereby avoiding the situation where the paint adsorbed by the sponge ball 34 flows on the surface of the marking paper 5 when the sponge ball 34 contacts the marking paper 5, causing the blank area of ​​the marking paper 5 to be coated with paint, affecting the subsequent staff's judgment of the mark.

[0037] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An online monitoring device for dissolved gas in transformer oil, comprising a transformer box (1), characterized in that: The upper and lower sides of the inner cavity of the transformer box (1) are fixedly connected to a slide bar (4), the slide bar (4) is slidably connected to a lifting plate (7), a monitoring sensor (9) is fixedly connected to one side of the lifting plate (7), and a marking component is also provided on the lifting plate (7); The marking assembly includes a sleeve (15) fixedly connected to one side of the lifting plate (7), a connecting rod (11) is rotatably provided on both sides of the upper end surface of the lifting plate (7), a connecting rod (13) is rotatably provided on one end of the connecting rod (11), an adjusting plate (14) is rotatably provided on one end of the connecting rod (13), a flip block (22) is rotatably provided on both ends of the lower side of the adjusting plate (14), a shell (23) is rotatably provided on one side of the flip block (22), a plurality of sliders (35) are radially distributed on one side of the shell (23) and are slidably connected through a slide groove, and a sponge ball (34) is fixedly connected on one side of the slider (35); Rollers (6) are rotatably provided at both upper and lower ends of one side of the inner cavity of the transformer box (1), and a same marking paper (5) is wound around the two rolls (6).

2. The online monitoring device for dissolved gas in transformer oil according to claim 1, characterized in that: One end of the lifting plate (7) is threadedly connected to a threaded rod (3), both ends of the threaded rod (3) are rotatably arranged on the transformer box (1), one side of the upper end surface of the transformer box (1) is fixedly connected to a motor (2), and the output end of the motor (2) is fixedly connected to one end of the threaded rod (3).

3. The online monitoring device for dissolved gas in transformer oil according to claim 1, characterized in that: A nozzle (32) is passed through and fixedly connected to one side of the sleeve (15); one end of the nozzle (32) is connected to a connecting pipe (10); one end of the connecting pipe (10) is connected to a pump body (19); one side of the lifting plate (7) is fixedly connected to a paint box (8); a feed end of the pump body (19) is connected to one side of the paint box (8); and the pump body (19) is fixedly connected to one side of the lifting plate (7).

4. The online monitoring device for dissolved gas in transformer oil according to claim 1, characterized in that: One side of the upper end of the lifting plate (7) is fixedly connected to a second motor (12), and the output end of the second motor (12) is fixedly connected to one end of the first connecting rod (11).

5. The online monitoring device for dissolved gas in transformer oil according to claim 1, characterized in that: One side of the lower end of the adjustment plate (14) is fixedly connected to a motor three (16), the output end of the motor three (16) is fixedly connected to the flip block (22), one side of the flip block (22) is fixedly connected to a motor four (21), and the output end of the motor four (21) is fixedly connected to one side of the housing (23).

6. The online monitoring device for dissolved gas in transformer oil according to claim 1, characterized in that: A connecting rod five (37) is rotatably provided at the middle of one side of the inner cavity of the shell (23), a connecting rod four (36) is rotatably provided at one end of the slider (35), one end of the connecting rod four (36) is rotatably connected to one end of the connecting rod five (37), a motor seven (33) is fixedly connected to the middle of one side of the inner cavity of the shell (23), and the output end of the motor seven (33) is fixedly connected to the connecting rod five (37).

7. The online monitoring device for dissolved gas in transformer oil according to claim 1, characterized in that: The upper and lower ends of one side of the inner cavity of the transformer box (1) are fixedly connected to the motor six (31), and the output end of the motor six (31) is fixedly connected to one end of the reel (6).

8. The online monitoring device for dissolved gas in transformer oil according to claim 1, characterized in that: A waste liquid tank (38) is fixedly connected to one side of the outer wall of the transformer box (1), a hose (20) is connected to one side of the sleeve (15), and the other end of the hose (20) passes through the transformer box (1) and is connected to the waste liquid tank (38).

9. The online monitoring device for dissolved gas in transformer oil according to claim 1, characterized in that: The lifting plate (7) is also provided with an anti-flow component; The anti-flow assembly comprises a connecting plate (17) fixedly connected to one side of the lifting plate (7), one end of the connecting plate (17) is fixedly connected to a cylinder (24), a piston end of the cylinder (24) is fixedly connected to one side of a fixing ring (18), a plurality of radial rods (27) are uniformly distributed in the radial direction and slidably connected to the fixing ring (18), and an elastic pad (26) is fixedly connected between the ends of two adjacent radial rods (27).

10. The online monitoring device for dissolved gas in transformer oil according to claim 9, characterized in that: One end of the radial rod (27) on one side is threadedly connected to the threaded rod 2 (30), and one end of the threaded rod 2 (30) is rotatably set on the fixed ring (18). One side of the outer ring of the fixed ring (18) is fixedly connected to the motor 5 (29), and the output end of the motor 5 (29) is fixedly connected to one end of the threaded rod 2 (30). The outer ring of the fixed ring (18) is rotatably set with a rotating ring (25), and one end of the radial rod (27) is rotatably set with the connecting rod 3 (28), and one end of the connecting rod 3 (28) is rotatably set on the rotating ring (25).

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