Insulating oil multi-parameter online monitoring device and monitoring system

Abstract

The invention belongs to the technical field of insulating oil multi-parameter monitoring, and discloses an insulating oil multi-parameter online monitoring device and monitoring system.The insulating oil multi-parameter online monitoring device comprises a transformer, a pressure moving mechanism is arranged above the transformer, an exhaust mechanism is arranged at the top of the transformer, and the pressure moving mechanism comprises a piston cylinder; the piston cylinder is fixedly connected to the top end of the transformer and is communicated with an inner cavity of the transformer, the top end of an inner cavity of the piston cylinder is fixedly connected with a pressure spring, the bottom end of the pressure spring is fixedly connected with a piston plate, the piston plate is attached to the inner wall of the piston cylinder, and the center of the top end of the piston plate is fixedly connected with a lifting rod. The piston plate drives the movable hollowed-out plate and the fixed hollowed-out plate to be staggered, so that hydrogen in the inner cavity of the transformer can be exhausted along the exhaust pipe, the hydrogen can be exhausted when the hydrogen content in insulating oil in the inner cavity of the transformer sharply rises, and the situation that the transformer is damaged due to high air pressure is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of insulating oil multi-monitoring, and in particular relates to an insulating oil multi-parameter online monitoring device and a monitoring system. Background Art

[0002] Insulating oil is a commonly used insulating medium in power equipment. The stability of its quality is crucial to the safe operation of the equipment. In order to accurately grasp the status of insulating oil inside electrical equipment such as transformers in real time, hydrogen will be generated inside the insulating oil when it is used in electrical equipment. Therefore, a multi-parameter online detection device is used to perform online detection of multiple values ​​such as the hydrogen content, pressure, and temperature of the insulating oil.

[0003] In the prior art, the insulating materials in electrical equipment such as transformers will gradually age during long-term use, and slowly decompose to produce gases such as hydrogen. Most of these gases will dissolve in the insulating oil near the insulating material area, resulting in inconsistent hydrogen content in different areas of the insulating oil, leading to inaccurate data measured by the hydrogen sensor. At the same time, in some fault conditions, such as water leakage in the transformer casing, after water enters the insulating oil, these water will react chemically under the action of the electric field and metal, and quickly generate a large amount of hydrogen. The hydrogen content in the insulating oil will increase rapidly. When the hydrogen content increases, the hydrogen in the insulating oil will float up and gather on the upper wall of the casing, thereby causing the air pressure inside the transformer to increase. At this time, it can be detected in time by online detection equipment, but the inspection personnel may not be able to quickly rush to the site for maintenance, which will lead to transformer failure or accident. Summary of the invention

[0004] The object of the present invention is to provide an insulating oil multi-parameter online monitoring device and a monitoring system to solve the problems raised in the above background technology.

[0005] In order to achieve the above object, the present invention provides the following technical solution: an insulating oil multi-parameter online monitoring device, comprising a transformer, a pressure movable mechanism is arranged above the transformer, and an exhaust mechanism is arranged on the top of the transformer; The pressure activity mechanism includes a piston cylinder, which is fixedly connected to the top of the transformer and is connected to the inner cavity of the transformer. The top of the inner cavity of the piston cylinder is fixedly connected to a pressure spring, and the bottom of the pressure spring is fixedly connected to a piston plate, which fits the inner wall of the piston cylinder. The center of the top of the piston plate is fixedly connected to a lifting rod, and the top of the lifting rod is fixedly connected to a lifting plate; The exhaust mechanism includes an exhaust pipe, which is fixedly connected to the top of the transformer and is located on the outside of the piston cylinder. The middle part of the exhaust pipe is fixedly connected to a control chamber, the inner cavity of the control chamber is fixedly connected to a fixed hollow plate, the inner cavity of the control chamber is movably sleeved with a movable hollow plate, the top of the movable hollow plate is fixedly connected to a lifting plate, the bottom end of the lifting plate is fixedly connected to a bottom plate, the upper end of the lifting plate is fixedly connected to a top plate, the top of the lifting plate is fixedly connected to a clamping plate 1, the side of the clamping plate 1 away from the piston cylinder is clamped with a clamping plate 2, the side of the clamping plate 2 away from the clamping plate 1 is provided with a spring assembly, and the bottom end of the spring assembly is fixedly connected to the transformer; A stirring mechanism is provided in the middle part above the transformer, and the stirring mechanism comprises a rack, the rack is fixedly connected to the side of the lifting rod away from the lifting plate, a gear is meshed on the surface of the rack, a side of the gear close to the damping rod and a side away from the damping rod are both fixedly connected to a linkage rod, a support rod is movably sleeved on the surface of the linkage rod, and the bottom of the support rod is fixedly connected to the transformer; An acceleration gear box is provided on the side of the linkage rod away from the gear, and a transmission assembly is provided on the side of the acceleration gear box away from the linkage rod. A driving rod is provided at the bottom of the transmission assembly, and stirring rods are provided at the bottom end of the driving rod and the top end of the transformer inner cavity. The surfaces of the plurality of stirring rods are movably sleeved with anti-slip transmission belts, and the stirring rods are connected through the anti-slip transmission belts. The transmission assembly includes bevel gear 1 and bevel gear 2, and the bevel gear 1 is meshed with the bevel gear 2. The bevel gear 1 is fixedly connected to the rotating shaft of the acceleration gear box, and the bevel gear 2 is fixedly connected to the top end of the driving rod.

[0006] Preferably, a support frame is fixedly connected to one side of the top of the transformer close to the lifting plate, a mounting tube is provided on the top of the support frame, a coil spring is fixedly connected to the inner cavity of the mounting tube, a damping rod is fixedly connected to the center of the coil spring, the top of the support frame is fixedly connected to a limit plate, and the bottom end of the damping rod is in contact with the limit plate.

[0007] Preferably, the top end of the piston cylinder is fixedly connected to a limiting frame, a rectangular groove is provided in the middle of the lifting rod, and the lifting rod is slidably connected to the limiting frame via a guide groove.

[0008] Preferably, the bottom end of the lifting plate is located between the bottom plate and the top plate, one end of the damping rod away from the limiting plate is in contact with the lifting plate, and the limiting plate is inclined toward the top of the lifting plate.

[0009] Preferably, the top of the control compartment is fixedly connected with a guide rod, the side of the lifting plate close to the guide ring is fixedly connected with a guide ring, and the guide ring is movably sleeved on the surface of the guide rod.

[0010] Preferably, the spring assembly includes a damping telescopic rod, a movable spring, and a mounting plate, the bottom of the mounting plate is fixedly connected to the transformer, the damping telescopic rod and the movable spring are fixedly connected to the second clamping plate on one side close to the second clamping plate, and the damping telescopic rod and the movable spring are fixedly connected to the mounting plate on one side away from the second clamping plate.

[0011] Preferably, the fixed hollow plate and the movable hollow plate are fitted together, and the hollow parts of the fixed hollow plate and the movable hollow plate are staggered.

[0012] Preferably, a sensor assembly is arranged on the outside of the transformer, and the sensor assembly includes a temperature sensor, a hydrogen sensor, a trace water sensor, and a pressure sensor. The pressure sensor is arranged on the side of the transformer close to the damping rod, and the temperature sensor, hydrogen sensor, and trace water sensor are all arranged on the side of the transformer away from the pressure sensor.

[0013] An insulating oil multi-parameter online monitoring device monitoring system, the inner cavity of the transformer is filled with insulating oil, in daily use, the insulating oil in the inner cavity of the transformer is used for protection and heat conduction, and the heat dissipation is carried out through the heat sink, then the temperature of the insulating oil is detected by a temperature sensor, the hydrogen content of the insulating oil is detected by a hydrogen sensor, the moisture content in the insulating oil is detected by a micro-water sensor, and the pressure of the inner cavity of the transformer is detected by a pressure sensor; When the hydrogen content in the insulating oil increases, the air pressure in the transformer cavity will also increase, which will drive the piston plate to move upward in the inner cavity of the piston cylinder, and then drive the lifting rod to move upward. At this time, the meshing of the rack and the gear drives the linkage rod to rotate, and then the transmission of the acceleration gear box is accelerated to drive the transmission assembly to operate, and then the drive rod is driven to rotate through the transmission assembly. At this time, through the transmission of the anti-slip transmission belt, multiple stirring rods are driven to rotate to stir the insulating oil in the transformer cavity, so that the hydrogen in the insulating oil is evenly distributed in the insulating oil, making the detection effect of the hydrogen sensor more accurate, and when the pressure is too high, the inspection personnel will perform maintenance; When the hydrogen content in the insulating oil increases rapidly, the hydrogen in the insulating oil will float up and gather on the upper wall of the shell, so that the lifting rod drives the lifting plate to rise. At this time, the damping rod will also be pushed upward by the lifting plate, and will not produce a damping effect on the lifting plate. When the lifting plate rises to the top, it will push the top plate upward, and then lift the lifting plate upward, thereby driving the clamping plate 1 to move upward and then clamp with the clamping plate 2 again, thereby fixing the lifting plate after lifting; When the lifting plate is lifted, the movable hollow plate is driven to rise, and the hollow parts of the fixed hollow plate and the movable hollow plate will overlap. At this time, the gas in the inner cavity of the transformer will be discharged along the exhaust pipe due to its own pressure, thereby reducing the gas pressure in the inner cavity of the transformer; When the air pressure in the transformer cavity decreases, the piston plate loses the resistance of the air pressure, and the thrust of the pressure spring drives the piston plate and the lifting plate to move downward and reset. However, due to the inclination angle setting of the damping rod, the lifting plate is resisted by the damping rod when moving downward, which delays the descent of the lifting plate, so that the gas in the transformer cavity is discharged along the exhaust pipe. Then, when the lifting plate drops to the lowest point, it presses the bottom plate downward, thereby driving the movable hollow plate to move downward, so that the hollow parts of the fixed hollow plate and the movable hollow plate are staggered.

[0014] The beneficial effects of the present invention are as follows: The present invention is that when the hydrogen content in the insulating oil in the inner cavity of the transformer increases, the pressure will increase. At this time, the air pressure will drive the piston plate to rise in the inner cavity of the piston cylinder, and first drive multiple stirring rods to rotate to stir the insulating oil in the inner cavity of the transformer, so that the insulating oil of the transformer moves, thereby making the hydrogen content in the insulating oil evenly distributed, thereby ensuring that the hydrogen sensor can accurately detect hydrogen. In addition, the piston plate drives the movable hollow plate and the fixed hollow plate to stagger, so that the hydrogen in the inner cavity of the transformer can be discharged along the exhaust pipe, thereby achieving the hydrogen discharge when the hydrogen content in the insulating oil in the inner cavity of the transformer increases sharply, avoiding high air pressure and causing damage to the transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structural connection of the present invention; Figure 2 This is a schematic diagram of the piston-cylinder connection structure of the present invention; Figure 3 This is a schematic diagram of the connection of the anti-skid transmission belt structure of the present invention; Figure 4 For the present invention Figure 3 The connection diagram at A is enlarged; Figure 5 This is a schematic diagram of the exhaust pipe connection structure of the present invention; Figure 6 For the present invention Figure 5 The connection diagram at B is enlarged; Figure 7 This is a connection diagram of the structural support frame of the present invention; Figure 8 For the present invention Figure 7 Enlarge the connection diagram at C in the middle.

[0016] In the figure: 1. transformer; 2. pressure movable mechanism; 21. piston cylinder; 22. pressure spring; 23. piston plate; 24. lifting rod; 25. lifting plate; 26. limit frame; 27. support frame; 28. mounting cylinder; 281. coil spring; 29. ​​damping rod; 291. limit plate; 3. exhaust mechanism; 31. exhaust pipe; 32. control chamber; 33. fixed hollow plate; 34. movable hollow plate; 35. lifting plate; 351. bottom plate; 352. top plate; 36. guide ring; 361. guide rod; 37. clamping plate 1; 3 8. Spring assembly; 381. Damping telescopic rod; 382. Movable spring; 383. Mounting plate; 39. Snap-in plate 2; 4. Stirring mechanism; 41. Rack; 42. Gear; 43. Linkage rod; 44. Acceleration gear box; 45. Transmission assembly; 451. Bevel gear 1; 452. Bevel gear 2; 46. Drive rod; 47. Stirring rod; 48. Anti-slip transmission belt; 49. Support rod; 6. Sensor assembly; 61. Temperature sensor; 62. Hydrogen sensor; 63. Micro-water sensor; 64. Pressure sensor; 7. Heat sink. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] like Figures 1 to 8 As shown, an embodiment of the present invention provides an insulating oil multi-parameter online monitoring device, comprising a transformer 1, a pressure movable mechanism 2 is arranged above the transformer 1, and an exhaust mechanism 3 is arranged on the top of the transformer 1; The pressure movable mechanism 2 includes a piston cylinder 21, which is fixedly connected to the top of the transformer 1 and is connected to the inner cavity of the transformer 1. The top of the inner cavity of the piston cylinder 21 is fixedly connected to a pressure spring 22, and the bottom of the pressure spring 22 is fixedly connected to a piston plate 23. The piston plate 23 is fitted with the inner wall of the piston cylinder 21. A lifting rod 24 is fixedly connected to the center of the top of the piston plate 23, and a lifting plate 25 is fixedly connected to the top of the lifting rod 24. The exhaust mechanism 3 includes an exhaust pipe 31, which is fixedly connected to the top of the transformer 1 and is located on the outside of the piston cylinder 21. A control chamber 32 is fixedly connected to the middle of the exhaust pipe 31. A fixed hollow plate 33 is fixedly connected to the inner cavity of the control chamber 32. A movable hollow plate 34 is movably sleeved on the inner cavity of the control chamber 32. A lifting plate 35 is fixedly connected to the top of the movable hollow plate 34. A bottom end of the lifting plate 35 is fixedly connected to a bottom plate 351. The upper end of the lifting plate 35 is fixedly connected to a top plate 352. A clamping plate 1 37 is fixedly connected to the top of the lifting plate 35. A clamping plate 2 39 is clamped on the side of the clamping plate 1 37 away from the piston cylinder 21. A spring assembly 38 is provided on the side of the clamping plate 2 39 away from the clamping plate 1 37. The bottom end of the spring assembly 38 is fixedly connected to the transformer 1.

[0019] A support frame 27 is fixedly connected to one side of the top of the transformer 1 close to the lifting plate 25, a mounting tube 28 is provided on the top of the support frame 27, a coil spring 281 is fixedly connected to the inner cavity of the mounting tube 28, a damping rod 29 is fixedly connected to the center of the coil spring 281, a limit plate 291 is fixedly connected to the top of the support frame 27, and the bottom end of the damping rod 29 is in contact with the limit plate 291.

[0020] The top end of the piston cylinder 21 is fixedly connected to a limiting frame 26 , a rectangular groove is provided in the middle of the lifting rod 24 , and the lifting rod 24 is slidably connected to the limiting frame 26 through a guide groove.

[0021] The bottom end of the lifting plate 25 is located between the bottom plate 351 and the top plate 352 . One end of the damping rod 29 away from the limiting plate 291 is in contact with the lifting plate 25 . The limiting plate 291 is inclined toward the top of the lifting plate 25 .

[0022] The top of the control compartment 32 is fixedly connected with a guide rod 361 , and the side of the lifting plate 35 close to the guide ring 36 is fixedly connected with the guide ring 36 , and the guide ring 36 is movably sleeved on the surface of the guide rod 361 .

[0023] The spring assembly 38 includes a damping telescopic rod 381, a movable spring 382, ​​and a mounting plate 383. The bottom of the mounting plate 383 is fixedly connected to the transformer 1, the damping telescopic rod 381 and the movable spring 382 are fixedly connected to the clamping plate 2 39 on one side close to the clamping plate 2 39, and the damping telescopic rod 381 and the movable spring 382 are fixedly connected to the mounting plate 383 on the side away from the clamping plate 2 39.

[0024] The fixed hollow plate 33 and the movable hollow plate 34 are fitted together, and the hollow parts of the fixed hollow plate 33 and the movable hollow plate 34 are arranged alternately.

[0025] A sensor assembly 6 is arranged on the outside of the transformer 1, and the sensor assembly 6 includes a temperature sensor 61, a hydrogen sensor 62, a trace water sensor 63, and a pressure sensor 64. The pressure sensor 64 is arranged on the side of the transformer 1 close to the damping rod 29, and the temperature sensor 61, the hydrogen sensor 62, and the trace water sensor 63 are all arranged on the side of the transformer 1 away from the pressure sensor 64.

[0026] The working principle and beneficial effects of the above technical solution are as follows: the inner cavity of the transformer 1 is filled with insulating oil. In daily use, the insulating oil in the inner cavity of the transformer 1 protects and conducts heat to the internal components of the transformer 1, and the heat is dissipated through the heat sink 7. Then, the temperature of the insulating oil is detected by the temperature sensor 61, the hydrogen content of the insulating oil is detected by the hydrogen sensor 62, the moisture content in the insulating oil is detected by the micro-water sensor 63, and the pressure of the inner cavity of the transformer 1 is detected by the pressure sensor 64, thereby forming a multi-parameter online monitoring function. When the hydrogen content in the insulating oil increases rapidly, the hydrogen in the insulating oil will float up and gather on the upper wall of the shell, and the high pressure will drive the piston plate 23 to rise to a high position in the inner cavity of the piston cylinder 21, and the piston plate 23 will drive the lifting rod 24 and the lifting plate 25 to rise. At this time, the damping rod 29 is tilted upward, so that the damping rod 29 will not generate resistance to the lifting plate 25. When the lifting plate 25 rises to the top, the top plate 352 is lifted upward, and then the lifting plate 35 is lifted upward. The lifting plate 35 drives the clamping plate 1 37 to move upward. At this time, the elasticity of the spring assembly 38 makes the clamping plate 1 37 and the clamping plate 2 39 separate and then clamp again; At the same time, the lifting plate 35 lifts the movable hollow plate 34 upward, so that the hollow parts of the movable hollow plate 34 and the fixed hollow plate 33 overlap. At this time, the gas in the inner cavity of the transformer 1 is discharged along the exhaust pipe 31 through the hollow parts of the movable hollow plate 34 and the fixed hollow plate 33 due to pressure, so that when the transformer 1 fails or other faults occur, the hydrogen content of the insulating oil in the inner cavity of the transformer 1 increases, and when the air pressure increases, the excess gas in the inner cavity of the transformer 1 can be discharged, so as to avoid the situation where the transformer 1 is damaged due to excessive hydrogen and high air pressure; When the gas pressure in the inner cavity of the transformer 1 decreases, the piston plate 23 loses its limit position, and the thrust of the pressure spring 22 drives the lifting rod 24 and the lifting plate 25 to move downward and reset. At this time, due to the angle setting of the damping rod 29, the thrust generated by the coil spring 281 drives the damping rod 29 to move in the direction of the lifting plate 25, so that the damping rod 29 and the lifting plate 25 fit closely, so that the lifting plate 25 is resisted by the damping rod 29 when descending, and then the descent is delayed, thereby ensuring that the excess gas in the inner cavity of the transformer 1 can be completely discharged; Then the lifting plate 25 descends to the bottom and presses the bottom plate 351 downward, thereby driving the clamping plate 1 37 at the top of the lifting plate 35 to move downward, and then clamped and fixed with the clamping plate 2 39 again, and driving the movable hollow plate 34 to descend, so that the hollow parts of the movable hollow plate 34 and the fixed hollow plate 33 are staggered to complete the blocking.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 As shown, the embodiment of the present invention provides an insulating oil multi-parameter online monitoring device and monitoring system, including a transformer 1, a stirring mechanism 4 is arranged in the middle above the transformer 1, the stirring mechanism 4 includes a rack 41, the rack 41 is fixedly connected to the side of the lifting rod 24 away from the lifting plate 25, the surface of the rack 41 is meshed with a gear 42, the side of the gear 42 close to the damping rod 29 and the side away from the damping rod 29 are both fixedly connected with a linkage rod 43, the surface of the linkage rod 43 is movably sleeved with a support rod 49, and the bottom of the support rod 49 is fixedly connected to the transformer 1; An acceleration gear box 44 is provided on the side of the linkage rod 43 away from the gear 42, and a transmission assembly 45 is provided on the side of the acceleration gear box 44 away from the linkage rod 43. A driving rod 46 is provided at the bottom of the transmission assembly 45, and a stirring rod 47 is provided at the bottom end of the driving rod 46 and the top end of the inner cavity of the transformer 1. The surfaces of the plurality of stirring rods 47 are movably sleeved with anti-skid transmission belts 48, and the stirring rods 47 are connected by transmission through the anti-skid transmission belts 48. The transmission assembly 45 includes a bevel gear 1 451 and a bevel gear 2 452, which are meshed with each other, and the bevel gear 1 451 is fixedly connected to the rotating shaft of the acceleration gear box 44, and the bevel gear 2 452 is fixedly connected to the top end of the driving rod 46; The working principle and beneficial effects of the above technical solution are as follows: during daily use, the hydrogen content in the inner cavity of the transformer 1 increases, and the increased air pressure drives the piston plate 23 to move upward, thereby driving the lifting rod 24 and the rack 41 to rise. At this time, the rack 41 and the gear 42 are meshed, thereby driving the acceleration gear box 44 to operate, and then the acceleration gear box 44 accelerates the transmission assembly 45 to accelerate the operation, thereby driving the drive rod 46 to rotate, and then driving the multiple stirring rods 47 to rotate, thereby realizing the stirring of the insulating oil in the inner cavity of the transformer 1, so that the local hydrogen is evenly distributed in the insulating oil, thereby avoiding uneven distribution of hydrogen in the insulating oil, resulting in the situation that the value detected by the hydrogen sensor 62 is not accurate enough.

[0028] like Figures 1 to 8As shown, the embodiment of the present invention provides a monitoring system for an insulating oil multi-parameter online monitoring device. The inner cavity of the transformer 1 is filled with insulating oil. In daily use, the transformer 1 is protected and heat-conducted by the insulating oil in the inner cavity of the transformer 1, and heat is dissipated by the heat sink 7. Then, the temperature of the insulating oil is detected by the temperature sensor 61, the hydrogen content of the insulating oil is detected by the hydrogen sensor 62, the moisture content in the insulating oil is detected by the micro-water sensor 63, and the pressure of the inner cavity of the transformer 1 is detected by the pressure sensor 64; When the hydrogen content in the insulating oil increases, the hydrogen inside the insulating oil will be discharged from the insulating oil and fill the inside of the transformer 1, so the air pressure of the transformer 1 also increases, thereby driving the piston plate 23 to move upward in the inner cavity of the piston cylinder 21, and then driving the lifting rod 24 to move upward. At this time, the rack 41 and the gear 42 are meshed to drive the linkage rod 43 to rotate, and then the transmission of the acceleration gear box 44 is accelerated to drive the transmission assembly 45 to operate, and then the driving rod 46 is driven to rotate through the transmission assembly 45. At this time, the transmission of the anti-slip transmission belt 48 drives multiple stirring rods 47 to rotate to stir the insulating oil in the inner cavity of the transformer 1, so that the hydrogen in the insulating oil is evenly distributed in the insulating oil, avoiding the different positions where the hydrogen is generated inside the transformer 1, resulting in only local presence of concentrated hydrogen, so that the detection effect of the hydrogen sensor 62 is more accurate; When the hydrogen content in the insulating oil increases rapidly, the hydrogen in the insulating oil will float up and gather on the upper wall of the transformer 1 housing, and the lifting rod 24 will drive the lifting plate 25 to rise. At this time, the damping rod 29 will also be driven upward by the lifting plate 25. Since the upper part of the damping rod 29 is not limited, the damping rod 29 will not produce a damping effect on the lifting plate 25. When the lifting plate 25 rises to the top, it pushes the top plate 352 upward, thereby lifting the lifting plate 35 upward, thereby driving the clamping plate 1 37 to move upward and then clamp with the clamping plate 2 39 again, thereby fixing the lifting plate 35 after lifting; When the lifting plate 35 is lifted, the movable hollow plate 34 is driven to rise, and the hollow parts of the fixed hollow plate 33 and the movable hollow plate 34 will overlap. At this time, the gas in the inner cavity of the transformer 1 will be discharged along the exhaust pipe 31 due to its own pressure, thereby reducing the gas pressure in the inner cavity of the transformer 1; When the air pressure in the inner cavity of the transformer 1 decreases, the piston plate 23 loses the resistance of the air pressure, and the thrust of the pressure spring 22 drives the piston plate 23 and the lifting plate 25 to move downward and reset. However, due to the inclination angle setting of the damping rod 29, the lifting plate 25 is resisted by the damping rod 29 when moving downward, and the lifting plate 25 is delayed in descending, so that the gas in the inner cavity of the transformer 1 is discharged along the exhaust pipe 31. Then, when the lifting plate 25 descends to the lowest point, it presses the bottom plate 351 downward, thereby driving the movable hollow plate 34 to move downward, so that the hollow parts of the fixed hollow plate 33 and the movable hollow plate 34 are staggered.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An insulating oil multi-parameter online monitoring device, comprising a transformer (1), characterized in that: A pressure movable mechanism (2) is arranged above the transformer (1), and an exhaust mechanism (3) is arranged on the top of the transformer (1); The pressure movable mechanism (2) comprises a piston cylinder (21), the piston cylinder (21) being fixedly connected to the top of the transformer (1) and being communicated with the inner cavity of the transformer (1), the top of the inner cavity of the piston cylinder (21) being fixedly connected to a pressure spring (22), the bottom of the pressure spring (22) being fixedly connected to a piston plate (23), the piston plate (23) being in contact with the inner wall of the piston cylinder (21), the center of the top of the piston plate (23) being fixedly connected to a lifting rod (24), the top of the lifting rod (24) being fixedly connected to a lifting plate (25); The exhaust mechanism (3) comprises an exhaust pipe (31), the exhaust pipe (31) being fixedly connected to the top end of the transformer (1) and being located outside the piston cylinder (21), the middle portion of the exhaust pipe (31) being fixedly connected to a control chamber (32), the inner cavity of the control chamber (32) being fixedly connected to a fixed hollow plate (33), the inner cavity of the control chamber (32) being movably sleeved with a movable hollow plate (34), the top end of the movable hollow plate (34) being fixedly connected to a lifting plate (35), the lifting plate The bottom end of the lifting plate (35) is fixedly connected to a bottom plate (351), the upper end of the lifting plate (35) is fixedly connected to a top plate (352), the top end of the lifting plate (35) is fixedly connected to a first clamping plate (37), a side of the first clamping plate (37) away from the piston cylinder (21) is clamped to a second clamping plate (39), a side of the second clamping plate (39) away from the first clamping plate (37) is provided with a spring assembly (38), and the bottom end of the spring assembly (38) is fixedly connected to the transformer (1); A stirring mechanism (4) is provided in the middle portion above the transformer (1), the stirring mechanism (4) comprising a rack (41), the rack (41) being fixedly connected to a side of the lifting rod (24) away from the lifting plate (25), a gear (42) being meshed on the surface of the rack (41), a linkage rod (43) being fixedly connected to a side of the gear (42) close to the damping rod (29) and a side of the gear (42) away from the damping rod (29), a support rod (49) being movably sleeved on the surface of the linkage rod (43), and a bottom of the support rod (49) being fixedly connected to the transformer (1); An acceleration gear box (44) is arranged on the side of the linkage rod (43) away from the gear (42), and a transmission assembly (45) is arranged on the side of the acceleration gear box (44) away from the linkage rod (43). A driving rod (46) is arranged at the bottom of the transmission assembly (45), and stirring rods (47) are arranged at the bottom end of the driving rod (46) and the top end of the inner cavity of the transformer (1). The surfaces of the plurality of stirring rods (47) are movably sleeved with anti-skid transmission belts (48), and the stirring rods (47) are connected in transmission via the anti-skid transmission belts (48). The transmission assembly (45) comprises a bevel gear 1 (451) and a bevel gear 2 (452), and the bevel gear 1 (451) and the bevel gear 2 (452) are meshed, and the bevel gear 1 (451) is fixedly connected to the rotating shaft of the acceleration gear box (44), and the bevel gear 2 (452) is fixedly connected to the top end of the driving rod (46).

2. The insulating oil multi-parameter online monitoring device according to claim 1, characterized in that: A support frame (27) is fixedly connected to one side of the top of the transformer (1) close to the lifting plate (25); a mounting tube (28) is provided at the top of the support frame (27); a coil spring (281) is fixedly connected to the inner cavity of the mounting tube (28); a damping rod (29) is fixedly connected to the center of the coil spring (281); a limit plate (291) is fixedly connected to the top of the support frame (27); and the bottom end of the damping rod (29) is in contact with the limit plate (291).

3. The insulating oil multi-parameter online monitoring device according to claim 1 is characterized in that: The top end of the piston cylinder (21) is fixedly connected to a limiting frame (26), a rectangular groove is provided in the middle of the lifting rod (24), and the lifting rod (24) is slidably connected to the limiting frame (26) via a guide groove.

4. The insulating oil multi-parameter online monitoring device according to claim 2 is characterized in that: The bottom end of the lifting plate (25) is located between the bottom plate (351) and the top plate (352), one end of the damping rod (29) away from the limiting plate (291) is in contact with the lifting plate (25), and the limiting plate (291) is inclined toward the top of the lifting plate (25).

5. The insulating oil multi-parameter online monitoring device according to claim 4 is characterized in that: The top end of the control compartment (32) is fixedly connected to a guide rod (361), and the side of the lifting plate (35) close to the guide ring (36) is fixedly connected to a guide ring (36), and the guide ring (36) is movably sleeved on the surface of the guide rod (361).

6. The insulating oil multi-parameter online monitoring device according to claim 4, characterized in that: The spring assembly (38) comprises a damping telescopic rod (381), a movable spring (382), and a mounting plate (383); the bottom of the mounting plate (383) is fixedly connected to the transformer (1); the damping telescopic rod (381) and the movable spring (382) are fixedly connected to the second clamping plate (39) on one side close to the second clamping plate (39); and the damping telescopic rod (381) and the movable spring (382) are fixedly connected to the mounting plate (383) on one side away from the second clamping plate (39).

7. The insulating oil multi-parameter online monitoring device according to claim 6 is characterized in that: The fixed hollow plate (33) and the movable hollow plate (34) are fitted together, and the hollow portions of the fixed hollow plate (33) and the movable hollow plate (34) are arranged in a staggered manner.

8. The insulating oil multi-parameter online monitoring device according to claim 6, characterized in that: A sensor assembly (6) is arranged on the outside of the transformer (1), and the sensor assembly (6) comprises a temperature sensor (61), a hydrogen sensor (62), a trace water sensor (63), and a pressure sensor (64). The pressure sensor (64) is arranged on a side of the transformer (1) close to the damping rod (29), and the temperature sensor (61), the hydrogen sensor (62), and the trace water sensor (63) are all arranged on a side of the transformer (1) far from the pressure sensor (64).

9. The monitoring system applicable to the insulating oil multi-parameter online monitoring device according to claim 8 is characterized in that: The inner cavity of the transformer (1) is filled with insulating oil. There is a gap at the bottom of the inner cavity of the transformer (1). In daily use, the insulating oil in the inner cavity of the transformer (1) is used for protection and heat conduction, and the heat dissipation is performed by the heat sink (7). Then, the temperature of the insulating oil is detected by the temperature sensor (61), the hydrogen content of the insulating oil is detected by the hydrogen sensor (62), the water content in the insulating oil is detected by the micro-water sensor (63), and the pressure of the inner cavity of the transformer (1) is detected by the pressure sensor (64); When the hydrogen content in the insulating oil increases, the gas pressure in the inner cavity of the transformer (1) will also increase, thereby driving the piston plate (23) to move upward in the inner cavity of the piston cylinder (21), thereby driving the lifting rod (24) to move upward. At this time, the rack (41) and the gear (42) are meshed to drive the linkage rod (43) to rotate, and then the transmission of the acceleration gear box (44) is accelerated to drive the transmission assembly (45) to operate, and then the transmission assembly (45) drives the driving rod (46) to rotate. At this time, the anti-slip transmission belt (48) drives the plurality of stirring rods (47) to rotate to stir the insulating oil in the inner cavity of the transformer (1), so that the hydrogen in the insulating oil is evenly distributed in the insulating oil, making the detection effect of the hydrogen sensor (62) more accurate, and when the pressure is too high, the inspection personnel will perform maintenance; When the hydrogen content in the insulating oil increases sharply due to a fault, the lifting rod (24) drives the lifting plate (25) to rise. At this time, the damping rod (29) is also pushed upward by the lifting plate (25) and does not produce a damping effect on the lifting plate (25). When the lifting plate (25) rises to the top, it pushes the top plate (352) upward, thereby lifting the lifting plate (35) upward, thereby driving the clamping plate 1 (37) to move upward and then clamp with the clamping plate 2 (39) again, thereby fixing the lifted lifting plate (35); When the lifting plate (35) is lifted, the movable hollow plate (34) is driven to rise, and the hollow portions of the fixed hollow plate (33) and the movable hollow plate (34) overlap. At this time, the gas in the inner cavity of the transformer (1) is discharged along the exhaust pipe (31) due to its own pressure, thereby reducing the gas pressure in the inner cavity of the transformer (1); When the gas pressure in the inner cavity of the transformer (1) decreases, the piston plate (23) loses the resistance of the gas pressure, and the piston plate (23) and the lifting plate (25) are driven to move downward and reset through the thrust of the pressure spring (22). However, due to the inclination angle of the damping rod (29), the lifting plate (25) is resisted by the damping rod (29) when moving downward, thereby delaying the descent of the lifting plate (25), so that the gas in the inner cavity of the transformer (1) is discharged along the exhaust pipe (31). Then, when the lifting plate (25) descends to the lowest point, it presses the bottom plate (351) downward, thereby driving the movable hollow plate (34) to move downward, so that the hollow parts of the fixed hollow plate (33) and the movable hollow plate (34) are staggered.

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