Oil chromatography online monitoring device for transformer and electric reactor

Abstract

The invention relates to the technical field of transformer and reactor monitoring, and discloses a transformer and reactor oil chromatography on-line monitoring device which comprises a cabinet body, a box body is installed on the inner wall of the cabinet body, a sealing cover is installed on the top of the box body, sample gas and carrier gas are mixed and conveyed to a first conical separation barrel through a first conveying pipe, and a second conical separation barrel is arranged on the top of the box body. A centrifugal force is generated in the process, the mixed gas is screened according to molecular mass, macromolecular gas is thrown to the inner wall, micromolecular gas is left in the center and is conveyed through a second conveying pipe and a third conveying pipe, gas group mixing is avoided, and therefore follow-up separation accuracy is guaranteed; through constant-temperature adsorption of a grating plate and a five-A molecular sieve, ordered separation according to polarity intensity, synchronous rapid separation of small-molecule gas, and arrangement of gas flow into stable laminar flow by using a rectification piece, fine separation of gas components is realized, and the monitoring efficiency is further improved, so that the subsequent monitoring accuracy and stability are improved.

Description

Technical Field

[0001] This invention relates to the field of transformer and reactor monitoring technology, specifically to an online oil chromatography monitoring device for transformers and reactors. Background Technology

[0002] Transformers and reactors are crucial components of the power grid system. Faults in these components can lead to major accidents and disasters for the entire power system. Regular monitoring of their operating status and early warning of potential faults are essential for the safe and reliable operation of the entire power system, reducing fault repair time, and minimizing economic losses.

[0003] Existing online oil chromatography monitoring devices for transformers and reactors often suffer from insufficient separation accuracy, low efficiency, and weak anti-interference capabilities in the gas separation stage. In existing devices, mixed gases are usually directly introduced into the separation components, and gas components with different molecular weights and polarities are easily mixed with each other, making it impossible to achieve accurate sieving. This may lead to component overlap and peak disorder during subsequent detection, which will directly affect the accuracy of the detection results. Summary of the Invention

[0004] This invention provides an online oil chromatography monitoring device for transformers and reactors, which solves the problems mentioned in the background art of existing devices where mixed gases directly enter the separation component during the gas separation process, making it easy for gas components of different molecular weights and polarities to mix with each other, making it impossible to achieve accurate sieving, resulting in insufficient separation accuracy and inaccurate subsequent detection results.

[0005] This invention provides the following technical solution: an online transformer oil chromatography monitoring device, comprising a cabinet, an inner wall of which is fitted with a box, a top of which is fitted with a sealing cover, a partition plate fixedly fitted to the inner wall of the cabinet, a gas separation and detection component on the top of the partition plate, an oil mist separation component in the inner cavity of the sealing cover, a backflushing component on the top of the sealing cover, an oil-gas separation component in the inner cavity of the box, an A-plate screwed to the inner wall of the cabinet, a PLC control unit and a data processing system unit respectively fitted to the outer wall of the A-plate, a temperature controller, a time relay and a main power supply respectively fitted to the inner wall of the cabinet, a temperature control box on the top of the partition plate, a solenoid valve on the top of the sealing cover, a carrier gas box fitted to the side wall of the box, a second pipe on the top of the carrier gas box, a flow valve fitted to the outer wall of the second pipe, and a first pipe on the top of the partition plate.

[0006] As a preferred embodiment of the present invention: a diaphragm air pump and a metering chamber are respectively installed on the top of the sealing cover; the oil-gas separation assembly includes an acoustic drive power supply, a second partition plate, and an oil cylinder; a transducer is installed on the top of the second partition plate; a heating element is installed on the outer wall of the oil cylinder; a conductive seat is fixedly installed on the bottom of the oil cylinder; a matching inductor is installed on the top of the second partition plate; a temperature sensor is installed on the inner wall of the housing; a gas concentration sensor and a gas pressure sensor are respectively installed on the inner wall of the sealing cover; and oil sampling pipes are respectively provided on the side walls of the cabinet. The temperature control box is electrically connected to the control terminal of the temperature controller, and one end of the first pipe is connected to the outlet of the diaphragm air pump, and the other end of the first pipe is connected to the inlet of the metering chamber. There are three solenoid valves, and two solenoid valves are respectively installed on the outer wall of the first pipe and the second pipe. Each solenoid valve is electrically connected to the PLC control body. The flow valve is electrically connected to the PLC control body. One end of the second pipe is connected to the outlet of the carrier gas box, and the other end of the second pipe is connected to the inlet of the metering chamber.

[0007] As a preferred embodiment of the present invention: the gas separation and detection assembly includes a separation cylinder, a quartz tube, a hollow quartz column, and a TCD detector. The outer wall of the separation cylinder is provided with a conveying pipe, the top of the separation cylinder is provided with a conveying pipe, and the bottom of the separation cylinder is provided with a conveying pipe. The inner wall of the quartz tube is provided with a grid plate, the outer wall of the quartz tube is provided with a connecting pipe, the inner wall of the connecting pipe is provided with a rectifier, the outer wall of the hollow quartz column is provided with a connecting pipe, the outer wall of the TCD detector is provided with an exhaust pipe, and the outer wall of the exhaust pipe is provided with a solenoid valve.

[0008] As a preferred embodiment of the present invention: the first separation cylinder and the TCD detector are respectively installed on the top of the first partition plate; the quartz tube and the quartz hollow column are respectively installed in the inner cavity of the temperature control box; one end of the first delivery pipe is connected to the outlet of the quantitative chamber, and the other end of the first delivery pipe passes through the inner wall of the first partition plate and is connected to the inlet of the first separation cylinder; the first separation cylinder is conical in shape; one end of the third delivery pipe is connected to the outlet of the first separation cylinder with a smaller opening diameter, and the other end of the third delivery pipe passes through the inner wall of the temperature control box and is connected to the inlet of the quartz tube; one end of the second delivery pipe is connected to the end of the first separation cylinder with a larger opening diameter, and the other end of the second delivery pipe passes through the inner wall of the temperature control box and is connected to the inlet of the grid plate; there are two grid plates, and both grid plates are equipped with... The components are placed on both sides of the inner wall of the quartz tube. The inner cavity of the quartz tube is equipped with a 5A molecular sieve, and the 5A molecular sieve in the inner cavity of the quartz tube fills the middle of the gap between the two grid plates. One end of the connecting pipe is connected to the gas outlet of the quartz tube, and the other end of the connecting pipe is connected to the gas inlet of the quartz hollow column. There are three rectifier plates, and the outer wall of each of the three rectifier plates is provided with several micropores. The inner wall of the quartz hollow column is coated with a non-polar fixative liquid. One end of the connecting pipe is connected to the gas outlet of the quartz hollow column, and the other end of the connecting pipe is connected to the gas inlet detection end of the TCD detector. The end of the exhaust pipe away from the solenoid valve is connected to the exhaust detection end of the TCD detector. The TCD detector is electrically connected to the PLC control body and the data processing system body respectively.

[0009] As a preferred technical solution of the present invention: the oil mist separation assembly includes a centrifugal fan, a motor, a second separation cylinder, a collection component and a fourth conveying pipe. The outer wall of the centrifugal fan is provided with a main air pipe, the inner wall of the second separation cylinder is provided with a guide groove, and the inner cavity of the second separation cylinder is provided with a scraping component. The scraping components include a hollow rotating shaft, a motor, and a guide groove. The outer wall of the hollow rotating shaft is provided with a spiral groove. An annular block is provided at the bottom of the hollow rotating shaft. A separation plate is provided at the top of the hollow rotating shaft. A scraper is installed on the outer wall of the annular block. A gear is fixedly sleeved on the outer edge of the output shaft of the motor and a gear is fixedly sleeved on the top of the hollow rotating shaft. The collecting components include a spring, a piston plate, and an oil drain pipe.

[0010] As a preferred embodiment of the present invention: the motor is mounted on the top of the sealing cover, and the output shaft of the motor passes through the inner wall of the sealing cover and is connected to the power end of the centrifugal fan. The centrifugal fan and the second separator are respectively mounted on the inner wall of the sealing cover. One end of the main air pipe is connected to the outlet end of the centrifugal fan, and the other end of the main air pipe is connected to the inlet end of the second separator. The outer edge of the first gear meshes with the outer edge of the second gear. One end of the fourth conveying pipe passes through the inner wall of the sealing cover and is connected to the outlet end of the second separator. The other end of the fourth conveying pipe is connected to the inlet end of the diaphragm pump. The outer wall of the fourth conveying pipe near the second separator is rotatably connected to the inner wall of the hollow rotating shaft. A solenoid valve is installed on the outer wall of the fourth conveying pipe near the diaphragm pump. The annular... The outer wall of the block is slidably fitted against the inner wall of the guide groove and the spiral groove, respectively. The outer edge of the scraper is fitted against the inner wall of the spiral groove. The guide groove is opened on the inner wall of the box, and the top opening of the guide groove is connected to the bottom opening of the separation cylinder. The first spring is located at the bottom of the first piston plate, and one end of the first spring overlaps with the bottom of the first piston plate. The other end of the first spring overlaps with the inner wall of the guide groove. One end of the oil drain pipe is connected to the liquid outlet end of the guide groove, and the other end of the oil drain pipe is connected to the liquid inlet end of the box. There are several separation plates, and the shape of the several separation plates is wavy. The wavy slopes of each separation plate are arranged alternately. The outer wall of the first piston plate is slidably fitted against the inner wall of the guide groove.

[0011] As a preferred technical solution of the present invention: the backflushing assembly includes a gas storage tank, a branch pipe, a backflushing component, a driving component and a stirring component. The outer wall of the gas storage tank is provided with a connecting pipe three, and a solenoid valve three is installed on the outer wall of the connecting pipe three. A conveying pipe five is provided at the end of the gas storage tank away from the connecting pipe three. The recoil components include a one-way tube, a skirt, and a second motor. A conical nozzle is installed on the inner wall of the one-way tube, a ball head is rotatably connected to the inner wall of the skirt, and a toothed groove is opened on the outer wall of the ball head. A third gear is fixedly sleeved on the outer edge of the output shaft of the second motor. The driving component includes a guide cylinder and a pulley. A piston plate is slidably connected to the inner wall of the guide cylinder. A spring is provided at the bottom of the piston plate. An exhaust pipe is provided on the outer wall of the guide cylinder at the end away from the piston plate. A wire rope is provided at the bottom of the piston plate. The stirring component includes a fixed rod, a rotating shaft rotatably connected to the bottom of the fixed rod, a rope loop fixedly sleeved on the outer wall of the rotating shaft, a stirring paddle installed on the outer wall of the rotating shaft, and a torsion spring provided on the outer wall of the rotating shaft.

[0012] As a preferred embodiment of the present invention: the gas storage tank is installed on the top of the sealing cover; one end of the connecting pipe three is connected to the exhaust end of the metering chamber, and the other end of the connecting pipe three is connected to the inlet end of the gas storage tank; there are three solenoid valves three, and the three solenoid valves three are respectively installed on the outer walls of the connecting pipe three, the branch pipe, and the exhaust pipe two; each solenoid valve three is electrically connected to the PLC control unit; one end of the branch pipe is connected to the outlet end of the pipe two, and the other end of the branch pipe passes through the inner wall of the metering chamber and is connected to the inlet end of the one-way pipe; one end of the conveying pipe five is connected to the outlet end of the gas storage tank, and the other end of the conveying pipe five is connected to the inlet end of the guide cylinder; the one-way pipe is fixedly installed on the inner wall of the metering chamber; the outlet opening of the one-way pipe corresponds to the ball head, and the opening diameter of the one-way pipe is smaller than the diameter of the ball head; the smaller opening end of the conical nozzle corresponds to the outer wall of the ball head; the skirt is installed on the inner wall of the metering chamber, and the edge of the skirt away from the ball head is provided with an arc surface. The skirt has an arc angle of 135 degrees. Motor 2 is mounted on the outer wall of the metering chamber. The outer edge of gear 3 meshes with the inner wall of the tooth groove. A through hole is provided on the outer wall of the ball head, and the ball head rotates at an angle of 90 degrees. Spring 2 is located at the bottom of piston plate 2, with one end of spring 2 overlapping the bottom of piston plate 2 and the other end overlapping the inner wall of the guide cylinder. The end of exhaust pipe 2 away from one of the solenoid valves 3 is connected to the exhaust end of the guide cylinder, and one of the... The solenoid valve is electrically connected to the time relay. One end of the wire rope is fixed to the bottom of the piston plate, and the other end of the wire rope is rotated to ninety degrees and passes through the inner wall of the box and is wrapped around the outer wall of the rope winding sleeve. The stationary end of the pulley is installed on the outer wall of the box, and the rotating end of the pulley is in contact with the corner of the wire rope. The fixing rod is installed on the inner wall of the box. The stirring component is located in the inner cavity of the box. One end of the torsion spring is engaged with the outer wall of the rope winding sleeve, and the other end of the torsion spring is engaged with the bottom of the fixing rod.

[0013] As a preferred embodiment of the present invention: the acoustic wave drive power supply and the transducer are electrically connected to the PLC control body; one end of the matching inductor is electrically connected to the output end of the acoustic wave drive power supply, and the other end of the matching inductor is electrically connected to the receiving end of the transducer; the vibration end of the transducer is in contact with the bottom of the conductive seat; the receiving end of the heating element is electrically connected to the control end of the temperature controller; the temperature sensor is electrically connected to the temperature controller; the gas pressure sensor and the gas concentration sensor are respectively electrically connected to the PLC control body; the liquid outlet end of the oil pipe passes through the inner wall of the cabinet and the box and is connected to the liquid inlet end of the oil cylinder; the liquid inlet end of the oil return pipe passes through the inner wall of the cabinet and the box and is connected to the liquid outlet end of the oil cylinder; the partition, the acoustic wave drive power supply, and the oil cylinder are respectively installed on the inner wall of the box.

[0014] An online chromatographic detection device for reactor oil, the above-mentioned online chromatographic detection device for transformer oil can also be applied to reactor oil detection.

[0015] The present invention has the following beneficial effects: 1. This online oil chromatography monitoring device for transformers and reactors mixes sample gas with carrier gas and delivers it through a first delivery pipe to a conical separation cylinder. The mixed gas flows transversely along the inner wall, generating centrifugal force that separates the gas mixture according to molecular weight. Large molecules are thrown to the inner wall, while small molecules remain in the center and are then delivered through second and third delivery pipes, respectively, avoiding gas mixing and ensuring accurate subsequent separation. Simultaneously, large molecules enter the quartz tube first, undergo constant-temperature adsorption by a grid plate and a 5A molecular sieve, and separate in an orderly manner according to polarity. Small molecules enter simultaneously for rapid separation. A rectifier plate is used to regulate the airflow into a stable laminar flow, achieving fine separation of gas components and further improving monitoring efficiency, thereby enhancing the accuracy and stability of subsequent monitoring.

[0016] 2. This online oil chromatography monitoring device for transformers and reactors uses a starting motor to drive the output shaft, which in turn drives a centrifugal fan inside the sealed enclosure. The gas is then fed into the second separation cylinder in a transverse cutting manner through the main gas pipe. This causes the oil mist to adhere to the cylinder wall and flow, forming a vortex. The centrifugal force generated by the vortex breaks up the oil mist. Large oil droplets are thrown to the cylinder wall and flow to the bottom along the spiral groove, while small oil droplets enter the fourth delivery pipe with the central airflow. Through the staggered wave-shaped separation plates and the folding guide channel, the small oil droplets are intercepted due to inertial impact on the slope. The oil droplets are adsorbed by the separation plates, which are treated with oleophilic technology, and converge into oil droplets that slide off, thus achieving oil mist separation. This avoids the reduction in subsequent detection accuracy caused by oil mist escape.

[0017] 3. This online oil chromatography monitoring device for transformers and reactors uses a motor to drive the output shaft, which in turn drives a gear to rotate. During this process, the gear meshes with the gear and drives the hollow shaft to rotate, pushing the annular block to slide linearly along the guide groove. This causes the scraper to scrape off residual oil from the groove wall along the spiral groove path. The scraped oil and the separated oil converge at the bottom of the separation cylinder and enter the guide groove through the outlet. The gravity of the oil drives the piston plate to slide and compress the spring. When the oil reaches the drain pipe position, it flows back to the tank, eliminating the need for manual cleaning and collection, thus further extending the service life of the device.

[0018] 4. This online oil chromatography monitoring device for transformers and reactors uses a PLC to control the main body, outputting control signals to close solenoid valve one and open solenoid valve three on the branch pipe. This allows the carrier gas to enter the one-way pipe through pipe two and the branch pipe. The carrier gas is compressed through a tapered nozzle's gradually changing channel, resulting in rapid ejection. The carrier gas is sprayed onto the spherical surface of the ball head, where it is blocked and then reverses along the skirt's arc surface, thus flushing away residual sample gas in the quantitative chamber. Simultaneously, the PLC controls solenoid valve three on the connecting pipe to open, transporting the flushed mixed gas to a storage tank. After cleaning, motor two drives gear three to rotate, meshing and resetting the ball head. This prevents residual sample gas from interfering with detection, improving the accuracy of subsequent detections, and eliminating the need for manual cleaning.

[0019] 5. This online oil chromatography monitoring device for transformers and reactors, controlled by a PLC and a time relay, drives the opening of solenoid valve three in the delivery pipe, allowing the waste gas stored in the gas storage tank to enter the guide cylinder. The waste gas pushes piston plate two to slide and compress spring two, slackening the wire rope. This causes the torsion spring to rotate the rope take-up sleeve, which in turn rotates the stirring paddle clockwise. When piston plate two returns to its original position, it pulls the wire rope, causing the rope take-up sleeve to rotate counterclockwise. The rotation of the rotating shaft is continuously controlled by solenoid valve three, thereby achieving waste gas recovery and stirring. This breaks up air bubbles in the oil-gas separation, purifies the gas, and ensures uniform oil-gas separation, further improving the oil-gas separation effect and detection accuracy. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the cabinet structure of the present invention; Figure 3 This is a schematic diagram of the overall internal structure of the cabinet of the present invention; Figure 4 This is a schematic diagram of the oil-gas separation component structure of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the oil-gas separation method of the present invention; Figure 6 This is a schematic diagram of the scraping component structure of the present invention; Figure 7 This is a schematic diagram of the separation plate structure of the present invention; Figure 8 This is a schematic diagram of the recoil assembly structure of the present invention; Figure 9 This is a schematic diagram of the quantitative chamber structure of the present invention; Figure 10 This is a schematic diagram of the stirring structure of the present invention; Figure 11 This is a schematic diagram of the recoil component structure of the present invention; Figure 12 This is a schematic diagram of the gas separation and detection component structure of the present invention; Figure 13 This is a schematic diagram of the cross-sectional structure of the present invention; Figure 14 This is a schematic diagram of the rectifier structure of the present invention; Figure 15 For the present invention Figure 5 Enlarged structural diagram at point A in the middle.

[0021] In the diagram: 1. Cabinet; 2. Oil inlet pipe; 3. Oil return pipe; 4. Box; 5. Sealing cover; 6. Partition 1; 7. Gas separation and detection assembly; 8. Oil mist separation assembly; 9. Backflush assembly; 10. Oil-gas separation assembly; 11. Temperature sensor; 12. Gas concentration sensor; 13. Gas pressure sensor; 14. Diaphragm air pump; 15. Pipe 1; 16. Solenoid valve 1; 17. Metering chamber; 18. Flow valve; 19. Pipe 2; 20. Carrier gas box; 21. A plate; 22. PLC control unit; 23. Data processing system unit; 24. Temperature controller; 25. Time relay; 26. Main power supply; 27. Temperature control box; 71. Conveying pipe one; 72. Separating cylinder one; 73. Conveying pipe two; 74. Quartz tube; 75. Conveying pipe three; 76. Grating plate; 77. Connecting pipe one; 78. Rectifier plate; 79. Quartz hollow column; 710. Connecting pipe two; 711. TCD detector; 712. Exhaust pipe one; 713. Solenoid valve two; 81. Centrifugal fan; 82. Motor; 83. Main air pipe; 84. Separator cylinder II; 85. Guide groove; 86. Scraper; 87. Collector; 88. Conveying pipe IV; 861. Hollow rotating shaft; 862. Spiral groove; 863. Annular block; 864. Separating plate; 865. Scraper; 866. Motor 1; 867. Gear 1; 868. Gear 2; 869. Guide channel; 871. Spring 1; 872. Piston Plate 1; 873. Oil Discharge Pipe; 91. Gas storage tank; 92. Connecting pipe three; 93. Solenoid valve three; 94. Delivery pipe five; 95. Branch pipe; 96. Backflush component; 97. Drive component; 98. Agitator component; 961. One-way tube; 962. Conical nozzle; 963. Skirt; 964. Ball head; 965. Gear groove; 966. Motor II; 967. Gear III; 971. Guide cylinder; 972. Piston plate II; 973. Spring II; 974. Exhaust pipe II; 975. Steel wire rope; 976. Pulley; 981. Fixed rod; 982. Rotating shaft; 983. Stirring paddle; 984. Rope reel; 985. Torsion spring; 101. Acoustic wave drive power supply; 102. Partition 2; 103. Transducer; 104. Conductor seat; 105. Matching inductor; 106. Heating element; 107. Oil cylinder. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figure 1 - Figure 15 The transformer oil chromatography online monitoring device includes a cabinet 1, a box 4 installed on the inner wall of the cabinet 1, a sealing cover 5 installed on the top of the box 4, a partition 6 fixedly installed on the inner wall of the cabinet 1, a gas separation detection component 7 installed on the top of the partition 6, an oil mist separation component 8 installed in the inner cavity of the sealing cover 5, a backflushing component 9 installed on the top of the sealing cover 5, an oil-gas separation component 10 installed in the inner cavity of the box 4, an A plate 21 screwed to the inner wall of the cabinet 1, a PLC control main body 22 and a data processing system main body 23 respectively installed on the outer wall of the A plate 21, a temperature controller 24, a time relay 25 and a main power supply 26 respectively installed on the inner wall of the cabinet 1, a temperature control box 27 installed on the top of the partition 6, a solenoid valve 16 installed on the top of the sealing cover 5, a carrier gas box 20 installed on the side wall of the box 4, a pipe 19 installed on the top of the carrier gas box 20, a flow valve 18 installed on the outer wall of the pipe 19, and a pipe 15 installed on the top of the partition 6. In the above structure, the carrier gas is provided by the carrier gas box 20 installed on the side wall of the box 4, and is transported through the second pipe 19 on the top of the carrier gas box 20. The transport rate is controlled by the flow valve 18 on the outer wall of the second pipe 19. At the same time, the oil-gas separation component 10 in the inner cavity of the box 4 transports transformer oil sample gas, so that the sample gas and the carrier gas are mixed in the quantitative chamber 17. Under the action of the preset pressure, the mixed gas is uniformly transported through the first transport pipe 71 to the gas separation detection component 7 on the top of the partition 6 for detection. The signal processing and analysis are completed by the PLC control main body 22 and the data processing system main body 23 installed on the outer wall of the PLC control main body 22.

[0024] In a preferred embodiment: a diaphragm air pump 14 and a metering chamber 17 are respectively installed on the top of the sealing cover 5; the oil-gas separation assembly 10 includes an acoustic drive power supply 101, a second partition 102, and an oil cylinder 107; a transducer 103 is installed on the top of the second partition 102; a heating element 106 is installed on the outer wall of the oil cylinder 107; a conductive seat 104 is fixedly installed on the bottom of the oil cylinder 107; a matching inductor 105 is installed on the top of the second partition 102; a temperature sensor 11 is installed on the inner wall of the housing 4; a gas concentration sensor 12 and a gas pressure sensor 13 are respectively installed on the inner wall of the sealing cover 5; and sampling points are respectively provided on the side walls of the cabinet 1. Oil pipe 2 and return oil pipe 3, the wiring terminal of temperature control box 27 is electrically connected to the control terminal of temperature controller 24, one end of pipe 15 is connected to the air outlet of diaphragm air pump 14, and the other end of pipe 15 is connected to the air inlet of metering chamber 17, there are three solenoid valves 16, and two solenoid valves 16 are respectively installed on the outer wall of pipe 15 and pipe 2 19, each solenoid valve 16 is electrically connected to PLC control body 22, flow valve 18 is electrically connected to PLC control body 22, one end of pipe 2 19 is connected to the air outlet of air carrier box 20, and the other end of pipe 2 19 is connected to the air inlet of metering chamber 17; In the above structure, the wiring terminal of the temperature control box 27 is electrically connected to the control terminal of the temperature controller 24, enabling the temperature controller 24 to regulate the temperature inside the temperature control box 27, providing a constant temperature environment for the gas separation process of the quartz tube 74 and the hollow quartz column 79, and ensuring separation accuracy. Secondly, one end of pipe 15 is connected to the outlet of the diaphragm pump 14, and the other end of pipe 15 is connected to the inlet of the quantitative chamber 17, used to transport the sample gas purified by the oil mist separation component 8 into the quantitative chamber 17 for quantitative collection under the power of the diaphragm pump 14. Furthermore, there are three solenoid valves 16, with two of them installed on the outer walls of pipe 15 and pipe 19 respectively. Each solenoid valve 16 is connected to the PLC. The PLC control unit 22 is electrically connected, enabling it to switch the sample gas delivery and carrier gas delivery paths by controlling the on / off state of three solenoid valves 16. The flow valve 18 is also electrically connected to the PLC control unit 22, allowing it to regulate the carrier gas flow rate in pipeline 19 by controlling the opening of the flow valve 18. This ensures a stable mixing ratio of carrier gas and sample gas. One end of pipeline 19 is connected to the outlet of the carrier gas tank 20, and the other end is connected to the inlet of the quantitative chamber 17. This allows the nitrogen carrier gas from the carrier gas tank 20 to be delivered to the quantitative chamber 17 for mixing with the sample gas, providing power and a carrier for subsequent gas separation and ensuring the smooth operation of the gas separation and detection process.

[0025] In a preferred embodiment: the gas separation and detection assembly 7 includes a separation cylinder 72, a quartz tube 74, a hollow quartz column 79, and a TCD detector 711. The outer wall of the separation cylinder 72 is provided with a conveying pipe 71, the top of the separation cylinder 72 is provided with a conveying pipe 73, and the bottom of the separation cylinder 72 is provided with a conveying pipe 75. The inner wall of the quartz tube 74 is provided with a grid plate 76, the outer wall of the quartz tube 74 is provided with a connecting pipe 77, the inner wall of the connecting pipe 77 is provided with a rectifier plate 78, the outer wall of the hollow quartz column 79 is provided with a connecting pipe 710, the outer wall of the TCD detector 711 is provided with an exhaust pipe 712, and the outer wall of the exhaust pipe 712 is provided with a solenoid valve 713. In a preferred embodiment: the first separator 72 and the TCD detector 711 are respectively installed on the top of the partition 6; the quartz tube 74 and the quartz hollow column 79 are respectively installed in the inner cavity of the temperature control box 27; one end of the first delivery pipe 71 is connected to the outlet of the metering chamber 17, and the other end of the first delivery pipe 71 passes through the inner wall of the partition 6 and is connected to the inlet of the first separator 72; the first separator 72 is conical in shape; one end of the third delivery pipe 75 is connected to the outlet of the first separator 72 with a smaller opening diameter, and the other end of the third delivery pipe 75 passes through the inner wall of the temperature control box 27 and is connected to the inlet of the quartz tube 74; one end of the second delivery pipe 73 is connected to the outlet of the first separator 72 with a larger opening diameter, and the other end of the second delivery pipe 73 passes through the inner wall of the temperature control box 27 and is connected to the inlet of the grid plate 76; there are two grid plates 76, and both grid plates 76 are provided with On both sides of the inner wall of the quartz tube 74, the inner cavity of the quartz tube 74 is provided with 5A molecular sieve, and the 5A molecular sieve in the inner cavity of the quartz tube 74 fills the middle of the gap between the two grid plates 76. One end of the connecting pipe 77 is connected to the gas outlet of the quartz tube 74, and the other end of the connecting pipe 77 is connected to the gas inlet of the quartz hollow column 79. There are three rectifier plates 78, and the outer wall of each of the three rectifier plates 78 is provided with several micropores. The inner wall of the quartz hollow column 79 is coated with a non-polar fixative liquid. One end of the connecting pipe 710 is connected to the gas outlet of the quartz hollow column 79, and the other end of the connecting pipe 710 is connected to the gas inlet detection end of the TCD detector 711. The end of the exhaust pipe 712 away from the solenoid valve 713 is connected to the exhaust detection end of the TCD detector 711. The TCD detector 711 is electrically connected to the PLC control body 22 and the data processing system body 23 respectively. In the above structure, the sample gas and carrier gas mixture in the quantitative chamber 17 are transported to the separation cylinder 72 through the delivery pipe 71 under a preset pressure. Since the separation cylinder 72 is conical, the mixed gas enters at a transverse angle and flows along the inner wall of the cone, generating centrifugal force. This centrifugal force separates the mixed gas into two categories. Large molecule gases, including acetylene, ethylene, ethane, propane, and carbon dioxide, due to their large molecular mass and strong inertia, are thrown towards the inner wall of the separation cylinder 72 and flow along the inner wall to the end with the larger opening diameter, where they are transported through the delivery pipe 73. Small molecule gases, including hydrogen, oxygen, nitrogen, carbon monoxide, and methane, are separated due to their smaller molecular weight. Due to its small mass and weak inertia, the gas remains in the central area of ​​the separator 72. It is then transported through the smaller diameter end by the conveying pipe 75, thus separating the mixed gas into two parts. The larger gas molecules, transported by the conveying pipe 73, first enter the quartz tube 74 under a preset gas pressure. These larger gas molecules, then transported by the conveying pipe 73, first reach the grid plate 76 on the inner wall of the quartz tube 74 near the connecting pipe 77. After passing through the grid plate 76, the larger gas molecules uniformly enter the 5A molecular sieve filling area between the two grid plates 76. At this point, under the constant temperature environment of 40 to 50 degrees Celsius provided by the temperature control chamber 27, the 5A molecular sieve selects the components of the larger gas molecules. Selective adsorption separation occurs because the molecular characteristics of different components of the macromolecular gas vary, resulting in differences in adsorption forces with the 5A molecular sieve. Specifically, acetylene molecules, with a diameter of 0.334 nm (less than 0.5 nm), are highly polar and readily adsorb onto the 5A molecular sieve. Ethylene molecules, with diameters of 0.416 nm, ethane, and propane, with diameters of 0.44 nm and 0.49 nm (all close to 0.5 nm), exhibit moderate polarity and moderate adsorption force. Carbon dioxide molecules, with a diameter of 0.33 nm (less than 0.5 nm), are relatively weakly polar and exhibit weak adsorption force. Consequently, these macromolecules are separated by the 5A molecular sieve in ascending order of adsorption force, from carbon dioxide, ethane, ethylene, propane, etc. Acetylene molecules are separated sequentially to ensure they do not overlap after separation. The macromolecules then enter connecting tube 77 and flow through three rectifier plates 78. The micropores on the rectifier plates 78 further organize the orderly flow of macromolecular gas into a stable laminar flow, ensuring that the macromolecular components are transported to the hollow quartz column 79 in the separation order without disorder. Simultaneously, small molecule gases enter the quartz tube 74. After the macromolecular gas enters the quartz tube 74 and begins adsorption and separation, the small molecule gas, transported by conveying tube 75, enters the quartz tube 74 at the same preset pressure as the macromolecular gas. Its entry path is different from that of the macromolecular gas, and the molecular diameter of each component of the small molecule gas is less than 0.With a molecular weight of 5nm and a short interaction time with the 5A molecular sieve, the separation speed is relatively fast. The separated small-molecule gases enter the inner cavity of the quartz tube 74 near the outlet end in the order of hydrogen, oxygen, nitrogen, carbon monoxide, and methane. They are then sequentially rectified by three rectifier plates 78 and follow the rear ends of the larger molecules into the inner cavity of the hollow quartz column 79. After the large and small molecules are sequentially transported into the hollow quartz column 79, the non-polar stationary liquid coated on the inner wall of the column generates van der Waals forces of varying strengths with the gas components. Based on the difference in the strength of the van der Waals forces, the gases desorb sequentially on the surface of the stationary liquid, achieving fine separation. The separated gases then proceed in the following order: carbon dioxide, ethane, ethylene, propane, acetylene, hydrogen, oxygen, nitrogen, and carbon monoxide. Carbon dioxide and methane flow sequentially from the outlet of the hollow quartz column 79, through connecting pipe 710, to the inlet of the TCD detector 711, activating the detector and converting the concentration signals of each gas component into corresponding electrical signals. These signals are then transmitted at a preset frequency to the PLC control unit 22 and the data processing system 23. The data processing system 23 performs peak identification, peak area integration, and concentration calculation, achieving qualitative and quantitative analysis of the gas components. After detection, the PLC control unit 22 opens the solenoid valve 713, allowing the exhaust gas to be discharged orderly outside the device through exhaust pipe 712. This ensures the accuracy and stability of the online monitoring of transformer oil chromatography.

[0026] In a preferred embodiment: the oil mist separation assembly 8 includes a centrifugal fan 81, a motor 82, a second separation cylinder 84, a collection component 87, and a fourth conveying pipe 88. The outer wall of the centrifugal fan 81 is provided with a main air pipe 83, the inner wall of the second separation cylinder 84 is provided with a guide groove 85, and the inner cavity of the second separation cylinder 84 is provided with a scraping component 86. The scraping component 86 includes a hollow rotating shaft 861, a motor 866, and a guide groove 869. The outer wall of the hollow rotating shaft 861 is provided with a spiral groove 862. An annular block 863 is provided at the bottom of the hollow rotating shaft 861. A separation plate 864 is provided at the top of the hollow rotating shaft 861. A scraper 865 is installed on the outer wall of the annular block 863. A gear 867 is fixedly sleeved on the outer edge of the output shaft of the motor 866. A gear 868 is fixedly sleeved on the top of the hollow rotating shaft 861. The collecting component 87 includes a spring 871, a piston plate 872, and an oil drain pipe 873. In a preferred embodiment: the motor 82 is mounted on the top of the sealing cover 5, and the output shaft of the motor 82 passes through the inner wall of the sealing cover 5 and is connected to the power end of the centrifugal fan 81. The centrifugal fan 81 and the second separator 84 are respectively mounted on the inner wall of the sealing cover 5. One end of the main air pipe 83 is connected to the outlet end of the centrifugal fan 81, and the other end of the main air pipe 83 is connected to the inlet end of the second separator 84. The outer edge of gear 1 867 meshes with the outer edge of gear 2 868. One end of the conveying pipe 4 88 passes through the inner wall of the sealing cover 5 and is connected to the outlet end of the second separator 84, and the other end of the conveying pipe 4 88 is connected to the inlet end of the diaphragm air pump 14. The outer wall of the end of the conveying pipe 4 88 near the second separator 84 is rotatably connected to the inner wall of the hollow rotating shaft 861, and a solenoid valve 16 is installed on the outer wall of the end of the conveying pipe 4 88 near the diaphragm air pump 14. The outer wall of the annular block 863 is respectively The scraper 865 is slidably fitted against the inner walls of the guide groove 85 and the spiral groove 862. The outer edge of the scraper 865 is fitted against the inner wall of the spiral groove 862. The guide groove 869 is opened on the inner wall of the box 4, and the top opening of the guide groove 869 is connected to the bottom opening of the separator cylinder 84. The spring 871 is located at the bottom of the piston plate 872, and one end of the spring 871 overlaps with the bottom of the piston plate 872. The other end of the spring 871 overlaps with the inner wall of the guide groove 869. One end of the oil drain pipe 873 is connected to the liquid outlet of the guide groove 869, and the other end of the oil drain pipe 873 is connected to the liquid inlet of the box 4. There are several separator plates 864, and the shape of the separator plates 864 is wavy. The wavy slopes of each separator plate 864 are arranged alternately. The outer wall of the piston plate 872 is slidably fitted against the inner wall of the guide groove 869. In the above structure, by starting the motor 82, whose output shaft passes through the inner wall of the sealing cover 5, the centrifugal fan 81 inside the sealing cover 5 is driven to operate. The centrifugal fan 81 draws the oil mist gas precipitated above the oil cylinder 107 into the separator cylinder 2 84 through the main air pipe 83. The main air pipe 83 cuts the oil mist gas laterally into the inlet end of the separator cylinder 2 84, causing the oil mist inside the separator cylinder 2 84 to flow against the inner wall of the separator cylinder 2 84, forming vortices. The centrifugal force generated by the vortices directly acts on the oil mist, causing larger oil droplets in the oil mist to be thrown by the centrifugal force due to their weight. The oil droplets flow along the inner wall of the separator cylinder 84 and along the inner wall of the spiral groove 862 on the outer wall of its hollow rotating shaft 861 towards the bottom of the separator cylinder 84. Simultaneously, smaller oil droplets, due to their lower weight, remain in the central region of the vortex. Subsequently, the upward airflow in the central region of the vortex carries the gas containing small oil droplets and the gas containing larger oil droplets through the outlet of the separator cylinder 84 to the inlet of the conveying pipe 88. This causes several wavy, wave-shaped separating plates 864, arranged on the inner wall of the conveying pipe 88, to separate the small oil droplets in the gas. Because the separating plates 864 are arranged in a staggered manner, adjacent separating plates 864... The 64-wave slopes intersect to form several continuous, zigzag-type flow channels, each 3mm wide. This allows gas containing smaller oil droplets to undergo multiple zigzag flows following the wave slopes. During this flow, the smaller oil droplets, due to their inertia, cannot quickly zigzag with the gas and instead collide with the wave slopes of the separator plate 864, thus achieving interception. Simultaneously, the surface of the separator plate 864 undergoes an existing oleophilic treatment, causing the smaller oil droplets impacting the slopes to adhere to its surface. As the oil droplets accumulate, they gradually coalesce into tiny oil droplets, which, under the influence of gravity, flow along the separator plate 864. The oil flows down the slope to the bottom of the second separator 84 and converges with its large oil droplets. Finally, it enters the inner cavity of the guide channel 869 through the outlet of the second separator 84, so that the oil collected is located at the top of the piston plate 872. Under the weight of the oil, the piston plate 872 slides along the inner wall of the guide channel 869 and drives the spring 871 at the bottom to compress. When the piston plate 872 slides to the position of the oil drain pipe 873, the oil in the inner cavity of the guide channel 869 will flow back to the inner cavity of the housing 4 through the oil drain pipe 873, so as to facilitate the subsequent transportation of the oil in the oil-gas separation assembly 10 to the transformer.Secondly, after the gas is filtered in the inner cavity of the separator cylinder 84, when it needs to be cleaned, the motor 866 is started. The outer edge of the output shaft of the motor 866 drives the gear 867 to rotate. Since the outer edge of the gear 867 meshes with the outer edge of the gear 868, it drives the gear 868 to rotate. The rotating gear 868 drives the hollow shaft 861 to rotate. The rotating hollow shaft 861 pushes the annular block 863 to move. The outer edge of the scraper 865 on the outer wall of the annular block 863 scrapes off the oil residue adhering to the groove wall along the path of the spiral groove 862. At the same time, when the annular block 863 is pushed by its hollow shaft 861, the annular block 863... The outer wall of 863 also slides against the inner wall of the guide groove 85, ensuring that the annular block 863 always slides in a straight line. This prevents the hollow shaft 861 from rotating and causing the annular block 863 to rotate, thus ensuring thorough cleaning of the spiral groove 862 wall. Simultaneously, the scraped oil will collect at the bottom of the separator cylinder 84 for centralized collection. When the hollow shaft 861 rotates, its outer wall is rotatably connected to the inner wall of the conveying pipe 88, ensuring that the rotation of the hollow shaft 861 does not affect the fixation of the conveying pipe 88. This guarantees the connection stability of the conveying pipe 88 and prevents it from twisting and deforming due to synchronous rotation.

[0027] In a preferred embodiment: the backflushing assembly 9 includes an air tank 91, a branch pipe 95, a backflushing component 96, a driving component 97, and a stirring component 98. The outer wall of the air tank 91 is provided with a connecting pipe 92, and a solenoid valve 93 is installed on the outer wall of the connecting pipe 92. The end of the air tank 91 away from the connecting pipe 92 is provided with a conveying pipe 94. The recoil component 96 includes a one-way tube 961, a skirt 963, and a second motor 966. A conical nozzle 962 is installed on the inner wall of the one-way tube 961. A ball head 964 is rotatably connected to the inner wall of the skirt 963. A toothed groove 965 is opened on the outer wall of the ball head 964. A gear 967 is fixedly sleeved on the outer edge of the output shaft of the second motor 966. The driving component 97 includes a guide cylinder 971 and a pulley 976. A piston plate 972 is slidably connected to the inner wall of the guide cylinder 971. A spring 973 is provided at the bottom of the piston plate 972. An exhaust pipe 974 is provided on the outer wall of the end of the guide cylinder 971 away from the piston plate 972. A wire rope 975 is provided at the bottom of the piston plate 972. The stirring component 98 includes a fixed rod 981, a rotating shaft 982 rotatably connected to the bottom of the fixed rod 981, a rope sleeve 984 fixedly sleeved on the outer wall of the rotating shaft 982, a stirring paddle 983 installed on the outer wall of the rotating shaft 982, and a torsion spring 985 provided on the outer wall of the rotating shaft 982. In a preferred embodiment: the gas storage tank 91 is installed on top of the sealing cover 5; one end of the connecting pipe 92 is connected to the exhaust end of the metering chamber 17, and the other end of the connecting pipe 92 is connected to the inlet end of the gas storage tank 91; there are three solenoid valves 93, which are respectively installed on the outer walls of the connecting pipe 92, the branch pipe 95, and the exhaust pipe 974; each solenoid valve 93 is electrically connected to the PLC control body 22; one end of the branch pipe 95 is connected to the outlet end of the pipe 19, and the other end of the branch pipe 95 passes through the inner wall of the metering chamber 17 and... The inlet end of the one-way pipe 961 is connected to the air inlet end, one end of the delivery pipe 94 is connected to the air outlet end of the gas storage tank 91, and the other end of the delivery pipe 94 is connected to the air inlet end of the guide cylinder 971. The one-way pipe 961 is fixedly installed on the inner wall of the metering chamber 17. The opening of the air outlet end of the one-way pipe 961 corresponds to the ball head 964, and the opening diameter of the one-way pipe 961 is smaller than the diameter of the ball head 964. The smaller opening end of the conical nozzle 962 corresponds to the outer wall of the ball head 964. The skirt 963 is installed on the inner wall of the metering chamber 17. The edge of the skirt 963 away from the ball head 964 is provided with an arc surface, and the skirt 963... The arc angle of the 3rd section is 135 degrees. Motor 2 966 is installed on the outer wall of the metering chamber 17. The outer edge of gear 3 967 meshes with the inner wall of the tooth groove 965. The outer wall of ball head 964 has a through hole, and the rotation angle of ball head 964 is 90 degrees. Spring 2 973 is located at the bottom of piston plate 2 972, and one end of spring 2 973 overlaps with the bottom of piston plate 2 972. The other end of spring 2 973 overlaps with the inner wall of guide cylinder 971. The end of exhaust pipe 2 974 away from solenoid valve 3 93 is connected to the exhaust end of guide cylinder 971, and solenoid valve 3 964... 3 is electrically connected to the time relay 25. One end of the wire rope 975 is connected and fixed to the bottom of the piston plate 2 972, and the other end of the wire rope 975 is rotated to ninety degrees and passes through the inner wall of the box 4 and is wrapped around the outer wall of the rope winding sleeve 984. The stationary end of the pulley 976 is installed on the outer wall of the box 4, and the rotating end of the pulley 976 is in contact with the corner of the wire rope 975. The fixing rod 981 is installed on the inner wall of the box 4. The stirring element 98 is located in the inner cavity of the box 4. One end of the torsion spring 985 is engaged with the outer wall of the rope winding sleeve 984, and the other end of the torsion spring 985 is engaged with the bottom of the fixing rod 981. In the above structure, the PLC control unit 22 outputs a control signal to first close the solenoid valve 16 on the outer wall of pipe 2 19, and simultaneously open the solenoid valve 3 93 on the outer wall of branch pipe 95. This allows the carrier gas to first enter branch pipe 95 through pipe 2 19, and then be delivered to the inner cavity of one-way pipe 961. The carrier gas delivered to the inner cavity of one-way pipe 961 then passes through the tapered nozzle 962. The carrier gas enters from the end with the larger diameter of the tapered nozzle 962. As the cross-section of the channel gradually narrows, the carrier gas is compressed, increasing the pressure. It then rapidly exits from the end with the smaller diameter of the tapered nozzle 962, causing the carrier gas to be sprayed onto the spherical surface of the ball head 964. Since the diameter of the ball head 964 is larger than the opening diameter of one-way pipe 961, the carrier gas then interacts with the spherical surface of the ball head 964. When the head 964 contacts the spherical surface, it is blocked by the spherical surface and dispersed evenly in all directions. This allows the dispersed carrier gas to smoothly reverse 180 degrees along the 135-degree arc surface of the skirt 963. The reversed carrier gas will flush the sample gas remaining in the inner cavity of the metering chamber 17. The PLC control body 22 outputs a signal to control the opening of the solenoid valve 93 on the outer wall of its connecting pipe 92. This allows the sample gas flushed from the inner cavity of the metering chamber 17 and the carrier gas to be transported to the inner cavity of the gas storage tank 91 through the connecting pipe 92. The gas storage tank 91 stores the gas for subsequent oil stirring in the oil-gas separation stage. After the sample gas remaining in the inner cavity of the metering chamber 17 is flushed clean, the PLC control body 22 closes the carrier gas box 20 and the branch pipe 95. When the solenoid valve 393 on the connecting pipe 392 is closed, the solenoid valve 393 on the connecting pipe 392 is closed. Then, the PLC control unit 22 controls the start of the motor 2966, causing the outer edge of the output shaft of the motor 2966 to drive the gear 3967 to rotate. Since the gear 3967 meshes with the tooth groove 965 on the outer wall of the ball head 964, it drives the ball head 964 to rotate, so that the ball head 964 rotates to ninety degrees in the middle of the skirt 963, so that the through hole on the ball head 964 corresponds to the air inlet channel of the quantitative chamber 17, which facilitates the subsequent mixing of carrier gas and sample gas. Then, the PLC control unit 22 and the time relay 25 control the solenoid valve 393 on the delivery pipe 594 to open, so that the gas stored in the inner cavity of the gas storage tank 91 can be released. The wire rope enters the inner cavity of the guide cylinder 971 through the five-way conveying pipe 94 and pushes the piston plate 972 to slide along the inner wall of the guide cylinder 971. As the piston plate 972 slides, it compresses the bottom spring 973, causing the torsion spring 985, which is pre-compressed, to engage with the rope take-up sleeve 984. Due to the sliding of the piston plate 972, the wire rope 975 changes from a taut to a slack state, causing the torsion spring 985 to rotate the rope take-up sleeve 984. This rotation of the rope take-up sleeve 984 then causes the agitator 983 mounted on its outer wall to rotate clockwise. Finally, when the piston plate 972 slides past the exhaust position of the guide cylinder 971, the solenoid valve 93 on the five-way conveying pipe 94 is closed.Subsequently, the PLC control unit 22 controls the opening of the solenoid valve 93 on the exhaust pipe 2 974, causing the gas at the top of the piston plate 2 972 to be discharged from the outlet of its guide cylinder 971 through the exhaust pipe 2 974 into the inner cavity. After the gas at the top of the piston plate 2 972 is discharged, the piston plate 2 972 is reset by the rebound of the spring 2 973. When the piston plate 2 972 is reset, it pulls one end of its wire rope 975, causing the other end of the wire rope 975 to drive the wire rope 975 wound on the winding sleeve 984, causing the winding sleeve 984 to be... Pulling the lever causes it to rotate counterclockwise, which in turn causes the rotating shaft 982 to rotate counterclockwise as well. At this time, the torsion spring 985 contracts in the opposite direction, causing the PLC control unit 22 and time relay 25 to control the start and stop sequence of the solenoid valves 93 on the delivery pipe 94 and exhaust pipe 974. This ensures continuous rotation of the rotating shaft 982, resulting in more uniform heating of the oil and oil-gas separation. Simultaneously, the rotation breaks up air bubbles generated during oil-gas separation, purifying the separated gas and improving the accuracy of subsequent gas detection.

[0028] In a preferred embodiment: the acoustic drive power supply 101 and the transducer 103 are electrically connected to the PLC control body 22; one end of the matching inductor 105 is electrically connected to the output end of the acoustic drive power supply 101, and the other end of the matching inductor 105 is electrically connected to the receiving end of the transducer 103; the vibration end of the transducer 103 is in contact with the bottom of the conduction seat 104; the receiving end of the heating element 106 is electrically connected to the control end of the temperature controller 24; the temperature sensor 11 is electrically connected to the temperature controller 24; the gas pressure sensor 13 and the gas concentration sensor 12 are electrically connected to the PLC control body 22 respectively; the liquid outlet of the oil pipe 2 passes through the inner wall of the cabinet 1 and the box 4 and is connected to the liquid inlet of the oil cylinder 107; the liquid inlet of the return oil pipe 3 passes through the inner wall of the cabinet 1 and the box 4 and is connected to the liquid outlet of the oil cylinder 107; the partition 2 102, the acoustic drive power supply 101 and the oil cylinder 107 are respectively installed on the inner wall of the box 4. In the above structure, the acoustic wave drive power supply 101 and transducer 103 are electrically connected to the PLC control body 22, enabling the PLC control body 22 to control the oil-gas separation vibration process. One end of the matching inductor 105 is electrically connected to the output end of the acoustic wave drive power supply 101, and the other end is electrically connected to the receiving end of the transducer 103. This is used to match the high-frequency electrical signal output by the acoustic wave drive power supply 101, ensuring that the transducer 103 stably generates high-frequency vibration. This allows the vibrating end of the transducer 103 to contact the bottom of the conduction seat 104, enabling the vibration generated by the transducer 103 to be efficiently transmitted to the oil cylinder 107 through the conduction seat 104, achieving ultrasonic cavitation oil-gas separation. Simultaneously, the receiving end of the heating element 106 is electrically connected to the control end of the temperature controller 24, and its temperature sensor 11 is electrically connected to the temperature controller 24, allowing the temperature... The controller 24 uses the oil temperature data fed back by the temperature sensor 11 to automatically control the start and stop of the heating element 106, maintain the stable oil temperature in the oil cylinder 107, and accelerate the precipitation of dissolved gas. Secondly, the gas concentration sensor 12 and the gas pressure sensor 13 are electrically connected to the PLC control body 22 respectively, and transmit the concentration and pressure data of the precipitated gas to the PLC control body 22 in real time, providing a basis for the PLC control body 22 to determine that the oil-gas separation is completed. The outlet end of the oil pipe 2 passes through the inner wall of the device housing 1 and the box 4 and is connected to the inlet end of the oil cylinder 107, which is used to draw external transformer oil into the oil cylinder 107 for oil-gas separation. Secondly, the inlet end of the return oil pipe 3 passes through the inner wall of the housing 1 and the box 4 and is connected to the outlet end of the oil cylinder 107, which is used to return the oil after monitoring to the external transformer, realizing the closed-loop circulation of the oil.

[0029] An online chromatographic detection device for reactor oil; the online chromatographic detection device for transformer oil described above can also be applied to reactor oil detection. In the above structure, the dissolved gases in the reactor insulating oil are monitored online by utilizing the coordinated operation of the gas separation and detection component 7, the oil mist separation component 8, the backflushing component 9, and the oil-gas separation component 10. Specifically, the reactor oil is transported to the oil cylinder 107 through the oil pipe 2. After being heated by the heating element 106 and subjected to ultrasonic cavitation by the transducer 103, the dissolved gases in the oil are rapidly released. The released oil mist-containing gas is purified by the oil mist separation component 8 and then transported to the metering chamber 17 by the diaphragm air pump 14, where it is mixed with the carrier gas provided by the carrier gas box 20. The mixed gas is centrifuged and sieved by the conical separation cylinder 72 in the gas separation and detection component 7, separating the large molecular gases from the gas. Small molecule gases are separated, then adsorbed and separated by a 5A molecular sieve in quartz tube 74 and finely separated by a non-polar stationary liquid in quartz hollow column 79. Finally, the concentration of each gas component is detected by TCD detector 711, realizing qualitative and quantitative analysis of fault characteristic gases in reactor oil. At the same time, the backflushing component 9 uses the waste gas stored in the gas storage tank 91 to drive the agitator 98 to stir the oil in the oil cylinder 107, breaking the bubbles generated during the oil-gas separation process, purifying the gas, and further improving the detection accuracy. Through the above, the device originally used for transformer oil monitoring can also be used for reactor oil monitoring, realizing early warning of latent faults in reactors.

[0030] Working principle: First, the PLC control unit 22 controls the oil intake pipe 2 to transport external transformer oil to the oil cylinder 107 inside the tank 4, completing the oil filling. Then, the temperature controller 24 controls the heating element 106 to start and stop based on the oil temperature data fed back by the temperature sensor 11, maintaining a stable oil temperature in the oil cylinder 107 and accelerating the precipitation of dissolved gases in the oil. Next, the PLC control unit 22 controls the ultrasonic generator sound wave drive power supply 101 to start, transmitting a high-frequency electrical signal through the matching inductor 105, causing the ultrasonic transducer 103 to generate high-frequency vibration. This vibration is transmitted to the oil in the oil cylinder 107 through the conduction seat 104, achieving oil-gas separation using the ultrasonic cavitation effect. At the same time, the gas concentration sensor 12 and the gas pressure sensor... The device 13 transmits the concentration and pressure data of the precipitated gas to the PLC control unit 22 in real time. When the data reaches a preset threshold, it is determined that the oil-gas separation is complete. The PLC control unit 22 shuts off the acoustic drive power supply 101 and the transducer 103, stopping the oil-gas separation. The PLC control unit 22 and the time relay 25 control the opening of the solenoid valve 93 on the delivery pipe 94, allowing the gas stored in the gas tank 91 to enter the inner cavity of the guide cylinder 971 through the delivery pipe 94 and push the piston plate 972 to slide along the inner wall of the guide cylinder 971. As the piston plate 972 slides, it compresses the spring 973 at the bottom, causing the torsion spring 985 on the rope loop 984 to be in a pre-contracted state, thus... Due to the sliding of piston plate 972, the wire rope 975 changes from a taut state to a slack state, causing the torsion spring 985 to drive the rope winding sleeve 984 to rotate. The rotating rope winding sleeve 984 then drives the agitator 983 mounted on its outer wall to rotate clockwise. When piston plate 972 slides past the exhaust position of guide cylinder 971, the solenoid valve 3 93 on delivery pipe 5 94 is closed. Then, the PLC control unit 22 controls the opening of solenoid valve 3 93 on exhaust pipe 974, allowing the gas at the top of piston plate 972 to exit from the outlet of guide cylinder 971 through exhaust pipe 974 into the inner cavity. After the gas at the top of piston plate 972 is exhausted, piston plate 972... The rebound of spring 973 causes the piston plate 972 to pull one end of its wire rope 975 during the reset. The other end of the wire rope 975 drives the wire rope 975 wound on the winding sleeve 984, causing the winding sleeve 984 to rotate counterclockwise. This causes the rotating shaft 982 to rotate counterclockwise in sync. At this time, the torsion spring 985 will retract in the opposite direction, so that the PLC control body 22 and the time relay 25 can control the start and stop sequence of the solenoid valve 93 on the delivery pipe 94 and the exhaust pipe 974, thereby realizing the continuous rotation of the rotating shaft 982. The rotation breaks the bubbles generated in the oil in the inner cavity of the oil cylinder 107 under high-frequency vibration, thereby purifying the separated gas. Secondly, during the oil-gas separation process, the PLC control unit 22 outputs a control signal to first close the solenoid valve 16 on the outer wall of pipe 2 19, and simultaneously open the solenoid valve 3 93 on the outer wall of branch pipe 95. This allows the carrier gas to first enter branch pipe 95 through pipe 2 19, and then be delivered to the inner cavity of one-way pipe 961. The carrier gas delivered to the inner cavity of one-way pipe 961 then passes through the tapered nozzle 962. The carrier gas enters from the end with the larger diameter of the tapered nozzle 962. As the cross-section of the channel gradually narrows, the carrier gas is compressed. The pressure increases after compression, and the carrier gas is rapidly ejected from the smaller diameter end of the conical nozzle 962, causing it to be sprayed onto the spherical surface of the ball head 964. Since the diameter of the ball head 964 is larger than the opening diameter of the one-way tube 961, the carrier gas is blocked by the spherical surface when it comes into contact with the ball head 964 and is evenly dispersed in all directions. The dispersed carrier gas then smoothly reverses 180 degrees along the 135-degree arc surface of the skirt 963, allowing the reversed carrier gas to flush away the sample gas remaining in the quantitative chamber 17. The main body 22 is controlled by a PLC. The output signal controls the opening of the solenoid valve 93 on the outer wall of the connecting pipe 92, allowing the residual sample gas in the quantitative chamber 17 to be flushed out, and the carrier gas to be transported to the inner cavity of the gas storage tank 91 via the connecting pipe 92. This prevents the residual gas from mixing with the separated oil and gas, which could lead to subsequent detection inaccuracies and reduced efficiency. It also facilitates the storage of the gas in the gas storage tank 91. After the residual sample gas in the quantitative chamber 17 is flushed out, the PLC controls the main body 22 to close the solenoid valve 93 on the carrier gas box 20 and the branch pipe 95. At this time, the solenoid valve 93 on the connecting pipe 92 is closed, and then the motor 966 is started by the PLC control body 22. The output shaft of the motor 966 drives the gear 967 to rotate. Since the gear 967 meshes with the tooth groove 965 on the outer wall of the ball head 964, it drives the ball head 964 to rotate. The ball head 964 will rotate to ninety degrees in the middle of the skirt 963, so that the through hole on the ball head 964 corresponds to the air inlet channel of the quantitative chamber 17, which facilitates the subsequent mixing of carrier gas and sample gas. Then, motor 82 is started. Since the output shaft of motor 82 passes through the inner wall of the sealing cover 5, it drives the centrifugal fan 81 inside the sealing cover 5 to operate. The centrifugal fan 81 draws the oil mist gas precipitated above the oil cylinder 107 into the separation cylinder 2 84 through the main air pipe 83. The main air pipe 83 cuts the oil mist gas laterally into the air inlet end of the separation cylinder 2 84, causing the oil mist inside the separation cylinder 2 84 to flow against the inner wall of the separation cylinder 2 84, forming vortices. The centrifugal force generated by the vortices directly acts on the oil mist, causing larger oil droplets in the oil mist to be thrown into the separation cylinder 2 by their weight. The oil droplets flow along the inner wall of the spiral groove 862 on the outer wall of the hollow rotating shaft 861 towards the bottom of the second separation cylinder 84. Simultaneously, smaller oil droplets, due to their lower weight, remain in the central region of the vortex. Subsequently, the upward airflow in the central region of the vortex carries the gas containing small oil droplets and the gas containing larger oil droplets through the outlet of the second separation cylinder 84 to the inlet of the fourth conveying pipe 88. This causes several wavy, wave-shaped separation plates 864, arranged on the inner wall of the fourth conveying pipe 88, to separate the small oil droplets in the gas. Because the separation plates 864 are arranged in a staggered pattern, adjacent separation plates 864... The wavy slopes intersect to form several continuous, zigzag flow channels, each 3mm wide. This allows gas containing smaller oil droplets to undergo multiple zigzag flows following the wavy slopes. During this flow, the smaller oil droplets, due to their inertia, cannot quickly zigzag with the gas and instead collide with the wavy slopes of the separator 864, thus achieving interception. Simultaneously, the surface of the separator 864 undergoes an existing oleophilic treatment, causing the smaller oil droplets impacting the slopes to adhere to its surface. As the oil droplets accumulate, they gradually coalesce into tiny oil droplets, which, under the influence of gravity, flow along the separator 864... The oil flows down the slope to the bottom of the second separator 84 and converges with its large oil droplets. Finally, it enters the inner cavity of the guide channel 869 through the outlet of the second separator 84. The oil that has been collected is located at the top of the piston plate 872. Under the weight of the collected oil, the piston plate 872 slides along the inner wall of the guide channel 869 and drives the spring 871 at the bottom to compress. When the piston plate 872 slides to the position of the oil drain pipe 873, the oil in the inner cavity of the guide channel 869 will flow back to the inner cavity of the housing 4 through the oil drain pipe 873, so as to facilitate the subsequent transportation of the oil in the oil-gas separation assembly 10 to the transformer.Secondly, after the gas is filtered inside the separator cylinder 84, when it needs to be cleaned, the motor 866 is started. The outer edge of the output shaft of the motor 866 drives the gear 867 to rotate. Since the outer edge of gear 867 meshes with the outer edge of gear 868, it drives gear 868 to rotate. The rotating gear 868 drives the hollow shaft 861 to rotate. The rotating hollow shaft 861 pushes the annular block 863 to move, causing the scraper on the outer wall of the annular block 863 to... The outer edge of 865 scrapes away the residual oil adhering to the wall of the spiral groove 862 along the path of the spiral groove 862. At the same time, when the annular block 863 is pushed by its hollow rotating shaft 861, the outer wall of the annular block 863 also slides against the inner wall of the guide groove 85, so that the annular block 863 always slides in a straight line. This prevents the hollow rotating shaft 861 from driving the annular block 863 to rotate when it rotates, thus ensuring that the wall of the spiral groove 862 is thoroughly cleaned. At the same time, the scraped oil will also collect at the bottom of the separation cylinder 84 for centralized collection. Then, the PLC control unit 22 controls the diaphragm air pump 14 to start, transporting the purified sample gas to the quantitative chamber 17 via pipeline 15. Simultaneously, it controls the solenoid valve 16 on the outer wall of pipeline 2 19 to open, allowing the carrier gas to be transported to the quantitative chamber 17 via pipeline 2 19. The flow valve 18 regulates the carrier gas flow rate to ensure a stable mixing ratio of sample gas and carrier gas. Subsequently, the mixed gas sample inside the quantitative chamber 17 is transported to the separation cylinder 72 via the delivery pipe 71. Because the separation cylinder 72 is conical, the mixed gas enters at a transverse angle and flows along the inner wall of the cone, generating centrifugal force. This centrifugal force separates the mixed gas into two categories. The larger molecules, including acetylene, ethylene, ethane, propane, and carbon dioxide, are separated due to their large molecular weight and strong inertia. The gas is thrown against the inner wall of separation cylinder 72, flowing along the inner wall to the end with the larger opening diameter, and then transported through conveying pipe 73. Small molecule gases, including hydrogen, oxygen, nitrogen, carbon monoxide, and methane, due to their small molecular weight and weak inertia, remain in the central region of separation cylinder 72 and are transported through the end with the smaller opening diameter by conveying pipe 75, thus separating the mixed gas into two parts. The large molecule gases transported through conveying pipe 73, under the preset gas pressure, first enter quartz tube 74, allowing them to reach the grid plate 76 on the inner wall of quartz tube 74 near the connecting pipe 77. After passing through the grid plate 76, the large molecule gases evenly enter the 5A molecular sieve filling space between the two grid plates 76. In the controlled environment of 40-50 degrees Celsius provided by the temperature control chamber 27, the 5A molecular sieve selectively adsorbs and separates various components of the macromolecular gas. The different molecular characteristics of each component result in varying adsorption forces with the 5A molecular sieve. Specifically, acetylene molecules, with a diameter of 0.334 nm (less than 0.5 nm), are highly polar and readily adsorb polarly onto the 5A molecular sieve. Ethylene molecules, with diameters of 0.416 nm, ethane, and propane, with diameters of 0.44 nm and 0.49 nm (all close to 0.5 nm), have moderate polarity and moderate adsorption forces. Carbon dioxide molecules, with a diameter of 0.33 nm (less than 0.5 nm), have weak polarity and weak adsorption forces. Therefore, these macromolecules are adsorbed by the 5A molecular sieve through adsorption. The separation proceeds from weakest to strongest, in the order of carbon dioxide, ethane, ethylene, propane, and acetylene, ensuring that the separated molecules do not overlap. The macromolecules then enter connecting tube 77 and flow through three rectifier plates 78. The micropores on the rectifier plates 78 further organize the ordered flow of macromolecular gas into a stable laminar flow, ensuring that the macromolecular components are transported to the hollow quartz column 79 in the separation order without disorder. Simultaneously, the small molecule gas enters the quartz tube 74. After the macromolecular gas enters the quartz tube 74 and begins adsorption and separation, the small molecule gas, transported by conveying tube 75, enters the quartz tube 74 at the same preset pressure as the macromolecular gas. Its entry path is different from that of the macromolecular gas, and the molecular diameter of each component of the small molecule gas is less than 0.With a molecular weight of 5nm and a short interaction time with the 5A molecular sieve, the separation speed is relatively fast. The separated small-molecule gases enter the inner cavity of the quartz tube 74 near the outlet end in the order of hydrogen, oxygen, nitrogen, carbon monoxide, and methane. They are then sequentially rectified by three rectifier plates 78 and follow the rear ends of the larger molecules into the inner cavity of the hollow quartz column 79. After the large and small molecules are sequentially transported into the hollow quartz column 79, the non-polar stationary liquid coated on the inner wall of the column generates van der Waals forces of varying strengths with the gas components. Based on the difference in the strength of the van der Waals forces, the gases desorb sequentially on the surface of the stationary liquid, achieving fine separation. The separated gases then proceed in the following order: carbon dioxide, ethane, ethylene, propane, acetylene, hydrogen, oxygen, nitrogen, and carbon monoxide. Carbon dioxide and methane flow sequentially from the outlet of the hollow quartz column 79, through connecting pipe 710, to the inlet of the TCD detector 711, activating the detector and converting the concentration signals of each gas component into corresponding electrical signals. These signals are then transmitted at a preset frequency to the PLC control unit 22 and the data processing system 23. The data processing system 23 performs peak identification, peak area integration, and concentration calculation, achieving qualitative and quantitative analysis of the gas components. After detection, the PLC control unit 22 opens the solenoid valve 713, allowing the exhaust gas to be discharged orderly outside the device through exhaust pipe 712. This ensures the accuracy and stability of the online monitoring of transformer oil chromatography.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended technical solutions and their equivalents.

Claims

1. A transformer oil chromatography online monitoring device, comprising a cabinet (1), characterized in that: The cabinet (1) has a box (4) installed on its inner wall, a sealing cover (5) installed on the top of the box (4), a partition (6) fixedly installed on the inner wall of the cabinet (1), a gas separation detection component (7) provided on the top of the partition (6), an oil mist separation component (8) provided in the inner cavity of the sealing cover (5), a backflushing component (9) provided on the top of the sealing cover (5), an oil-gas separation component (10) provided in the inner cavity of the box (4), an A plate (21) connected to the inner wall of the cabinet (1) by screws, and a PLC control unit installed on the outer wall of the A plate (21). The main body (22) and the main body (23) of the data processing system are respectively equipped with a thermostat (24), a time relay (25) and a main power supply (26) on the inner wall of the cabinet (1). A temperature control box (27) is installed on the top of the partition (6). A solenoid valve (16) is provided on the top of the sealing cover (5). A carrier gas box (20) is installed on the side wall of the box (4). A second pipe (19) is provided on the top of the carrier gas box (20). A flow valve (18) is installed on the outer wall of the second pipe (19). A first pipe (15) is provided on the top of the partition (6).

2. The online transformer oil chromatography monitoring device according to claim 1, characterized in that: The top of the sealing cover (5) is equipped with a diaphragm air pump (14) and a metering chamber (17). The oil-gas separation assembly (10) includes an acoustic drive power supply (101), a second partition (102), and an oil cylinder (107). A transducer (103) is installed on the top of the second partition (102). A heating element (106) is installed on the outer wall of the oil cylinder (107). A conductive seat (104) is fixedly installed on the bottom of the oil cylinder (107). A matching inductor (105) is installed on the top of the second partition (102). A temperature sensor (11) is installed on the inner wall of the box (4). A gas concentration sensor (12) and a gas pressure sensor (13) are installed on the inner wall of the sealing cover (5). An oil sampling pipe is provided on the side wall of the cabinet (1). 2) and return oil pipe (3), the wiring terminal of the temperature control box (27) is electrically connected to the control terminal of the temperature controller (24), one end of the first pipe (15) is connected to the outlet of the diaphragm air pump (14), and the other end of the first pipe (15) is connected to the inlet of the metering chamber (17). There are three solenoid valves (16), and two solenoid valves (16) are respectively installed on the outer wall of the first pipe (15) and the second pipe (19). Each solenoid valve (16) is electrically connected to the PLC control body (22). The flow valve (18) is electrically connected to the PLC control body (22). One end of the second pipe (19) is connected to the outlet of the carrier gas box (20), and the other end of the second pipe (19) is connected to the inlet of the metering chamber (17).

3. The online transformer oil chromatography monitoring device according to claim 1, characterized in that: The gas separation and detection assembly (7) includes a separation cylinder (72), a quartz tube (74), a quartz hollow column (79), and a TCD detector (711). The outer wall of the separation cylinder (72) is provided with a conveying pipe (71), the top of the separation cylinder (72) is provided with a conveying pipe (73), the bottom of the separation cylinder (72) is provided with a conveying pipe (75), the inner wall of the quartz tube (74) is provided with a grid plate (76), the outer wall of the quartz tube (74) is provided with a connecting pipe (77), the inner wall of the connecting pipe (77) is provided with a rectifier (78), the outer wall of the quartz hollow column (79) is provided with a connecting pipe (710), the outer wall of the TCD detector (711) is provided with an exhaust pipe (712), and the outer wall of the exhaust pipe (712) is provided with a solenoid valve (713).

4. The online transformer oil chromatography monitoring device according to claim 3, characterized in that: The separation cylinder (72) and the TCD detector (711) are respectively installed on the top of the partition (6). The quartz tube (74) and the quartz hollow column (79) are respectively installed in the inner cavity of the temperature control box (27). One end of the delivery pipe (71) is connected to the air outlet of the metering chamber (17), and the other end of the delivery pipe (71) passes through the inner wall of the partition (6) and is connected to the air inlet of the separation cylinder (72). The separation cylinder (72) is conical in shape. One end of the delivery pipe (75) The air outlet of the smaller opening diameter of the first separator (72) is connected to the air outlet of the third conveying pipe (75), and the other end of the third conveying pipe (75) passes through the inner wall of the temperature control box (27) and is connected to the air inlet of the quartz tube (74). One end of the second conveying pipe (73) is connected to the larger opening diameter of the first separator (72), and the other end of the second conveying pipe (73) passes through the inner wall of the temperature control box (27) and is connected to the air inlet of the grille plate (76). There are two grille plates (76), and both grille plates (76) are set on the quartz tube. On both sides of the inner wall of (74), the inner cavity of the quartz tube (74) is provided with a 5A molecular sieve, and the 5A molecular sieve in the inner cavity of the quartz tube (74) fills the middle of the gap between the two grid plates (76). One end of the connecting pipe (77) is connected to the air outlet of the quartz tube (74), and the other end of the connecting pipe (77) is connected to the air inlet of the quartz hollow column (79). There are three rectifier plates (78), and the outer wall of each of the three rectifier plates (78) is provided with several micropores. The quartz hollow column (79) The inner wall of 9) is coated with a non-polar fixative. One end of the connecting pipe 2 (710) is connected to the outlet end of the quartz hollow column (79), and the other end of the connecting pipe 2 (710) is connected to the inlet detection end of the TCD detector (711). The end of the exhaust pipe 1 (712) away from the solenoid valve 2 (713) is connected to the exhaust detection end of the TCD detector (711). The TCD detector (711) is electrically connected to the PLC control body (22) and the data processing system body (23) respectively.

5. The online transformer oil chromatography monitoring device according to claim 1, characterized in that: The oil mist separation assembly (8) includes a centrifugal fan (81), a motor (82), a second separation cylinder (84), a collection component (87), and a fourth conveying pipe (88). The outer wall of the centrifugal fan (81) is provided with a main air pipe (83), the inner wall of the second separation cylinder (84) is provided with a guide groove (85), and the inner cavity of the second separation cylinder (84) is provided with a scraper (86). The scraping component (86) includes a hollow rotating shaft (861), a motor (866), and a guide groove (869). The outer wall of the hollow rotating shaft (861) is provided with a spiral groove (862). An annular block (863) is provided at the bottom of the hollow rotating shaft (861). A separation plate (864) is provided at the top of the hollow rotating shaft (861). A scraper (865) is installed on the outer wall of the annular block (863). A gear (867) is fixedly sleeved on the outer edge of the output shaft of the motor (866). A gear (868) is fixedly sleeved on the top of the hollow rotating shaft (861). The collecting component (87) includes a spring (871), a piston plate (872), and an oil drain pipe (873).

6. The online transformer oil chromatography monitoring device according to claim 5, characterized in that: The motor (82) is mounted on the top of the sealing cover (5), and the output shaft of the motor (82) passes through the inner wall of the sealing cover (5) and is connected to the power end of the centrifugal fan (81). The centrifugal fan (81) and the second separator (84) are respectively mounted on the inner wall of the sealing cover (5). One end of the main air pipe (83) is connected to the outlet end of the centrifugal fan (81), and the other end of the main air pipe (83) is connected to the inlet end of the second separator (84). The outer edge of the first gear (867) is connected to the outer edge of the second gear (868). The outer edges are engaged. One end of the four-way conveying pipe (88) passes through the inner wall of the sealing cover (5) and is connected to the air outlet of the second separator (84). The other end of the four-way conveying pipe (88) is connected to the air inlet of the diaphragm air pump (14). The outer wall of the four-way conveying pipe (88) near the second separator (84) is rotatably connected to the inner wall of the hollow rotating shaft (861). A solenoid valve (16) is installed on the outer wall of the four-way conveying pipe (88) near the diaphragm air pump (14). The outer wall of the annular block (863) is respectively connected to the guide groove. (85) and the inner wall of the spiral groove (862) are fitted together and slidably disposed. The outer edge of the scraper (865) is fitted together with the inner wall of the spiral groove (862). The guide groove (869) is opened on the inner wall of the box (4), and the top opening of the guide groove (869) is connected to the bottom opening of the separation cylinder (84). The first spring (871) is located at the bottom of the first piston plate (872), and one end of the first spring (871) overlaps with the bottom of the first piston plate (872). The other end of the first spring (871) The end of the oil drain pipe (873) overlaps with the inner wall of the guide channel (869). One end of the oil drain pipe (873) is connected to the liquid outlet end of the guide channel (869), and the other end of the oil drain pipe (873) is connected to the liquid inlet end of the tank (4). There are several separation plates (864), and the shape of the several separation plates (864) is wavy. The wavy slopes of each separation plate (864) are arranged alternately. The outer wall of the piston plate (872) is in contact with the inner wall of the guide channel (869) and slides.

7. The online transformer oil chromatography monitoring device according to claim 1, characterized in that: The backflush assembly (9) includes a gas storage tank (91), a branch pipe (95), a backflush component (96), a drive component (97), and a stirring component (98). The outer wall of the gas storage tank (91) is provided with a connecting pipe three (92), and a solenoid valve three (93) is installed on the outer wall of the connecting pipe three (92). A delivery pipe five (94) is provided at the end of the gas storage tank (91) away from the connecting pipe three (92). The recoil component (96) includes a one-way tube (961), a skirt (963), and a second motor (966). A conical nozzle (962) is installed on the inner wall of the one-way tube (961). A ball head (964) is rotatably connected to the inner wall of the skirt (963). A toothed groove (965) is opened on the outer wall of the ball head (964). A gear (967) is fixedly sleeved on the outer edge of the output shaft of the second motor (966). The driving component (97) includes a guide cylinder (971) and a pulley (976). A piston plate (972) is slidably connected to the inner wall of the guide cylinder (971). A spring (973) is provided at the bottom of the piston plate (972). An exhaust pipe (974) is provided on the outer wall of the end of the guide cylinder (971) away from the piston plate (972). A wire rope (975) is provided at the bottom of the piston plate (972). The stirring component (98) includes a fixed rod (981), the bottom of which is rotatably connected to a rotating shaft (982), a rope sleeve (984) is fixedly sleeved on the outer wall of the rotating shaft (982), a stirring paddle (983) is installed on the outer wall of the rotating shaft (982), and a torsion spring (985) is provided on the outer wall of the rotating shaft (982).

8. The online transformer oil chromatography monitoring device according to claim 7, characterized in that: The gas storage tank (91) is installed on the top of the sealing cover (5). One end of the connecting pipe three (92) is connected to the exhaust end of the metering chamber (17), and the other end of the connecting pipe three (92) is connected to the air inlet end of the gas storage tank (91). There are three solenoid valves three (93), and the three solenoid valves three (93) are respectively installed on the outer wall of the connecting pipe three (92), the branch pipe (95) and the exhaust pipe two (974). Each of the solenoid valves three (93) is electrically connected to the PLC control body (22). One end of the branch pipe (95) is connected to the air outlet end of the pipe two (19), and the other end of the branch pipe (95) passes through the inner wall of the metering chamber (17) and the air inlet end of the one-way pipe (961). The five-way pipe (94) is connected to the gas outlet of the gas storage tank (91) at one end and to the gas inlet of the guide tube (971) at the other end. The one-way pipe (961) is fixedly installed on the inner wall of the metering chamber (17). The opening of the gas outlet of the one-way pipe (961) corresponds to the ball head (964), and the opening diameter of the one-way pipe (961) is smaller than the diameter of the ball head (964). The smaller opening end of the conical nozzle (962) corresponds to the outer wall of the ball head (964). The skirt (963) is installed on the inner wall of the metering chamber (17). The edge of the skirt (963) away from the ball head (964) is provided with an arc surface, and the arc angle of the skirt (963) is... At 135 degrees, the second motor (966) is installed on the outer wall of the metering chamber (17), the outer edge of the third gear (967) meshes with the inner wall of the tooth groove (965), the outer wall of the ball head (964) has a through hole, and the rotation angle of the ball head (964) is 90 degrees, the second spring (973) is located at the bottom of the second piston plate (972), and one end of the second spring (973) overlaps with the bottom of the second piston plate (972), and the other end of the second spring (973) overlaps with the inner wall of the guide cylinder (971), the end of the second exhaust pipe (974) away from one of the solenoid valves (93) is connected to the exhaust end of the guide cylinder (971), and one of the solenoid valves (93) is connected to the time The inter-relay (25) is electrically connected. One end of the wire rope (975) is connected and fixed to the bottom of the piston plate (972), and the other end of the wire rope (975) is rotated to ninety degrees and passes through the inner wall of the box (4) and is wrapped around the outer wall of the rope winding sleeve (984). The stationary end of the pulley (976) is installed on the outer wall of the box (4), and the rotating end of the pulley (976) is in contact with the corner of the wire rope (975). The fixing rod (981) is installed on the inner wall of the box (4). The stirring element (98) is located in the inner cavity of the box (4). One end of the torsion spring (985) is engaged with the outer wall of the rope winding sleeve (984), and the other end of the torsion spring (985) is engaged with the bottom of the fixing rod (981).

9. The online transformer oil chromatography monitoring device according to claim 2, characterized in that: The acoustic wave drive power supply (101) and transducer (103) are electrically connected to the PLC control body (22). One end of the matching inductor (105) is electrically connected to the output terminal of the acoustic wave drive power supply (101), and the other end of the matching inductor (105) is electrically connected to the receiving terminal of the transducer (103). The vibration end of the transducer (103) is in contact with the bottom of the conduction seat (104). The receiving terminal of the heating element (106) is electrically connected to the control terminal of the temperature controller (24). The temperature sensor (11) is connected to the temperature controller (24). Electrically connected, the gas pressure sensor (13) and the gas concentration sensor (12) are electrically connected to the PLC control body (22) respectively. The liquid outlet of the oil pipe (2) passes through the inner wall of the cabinet (1) and the box (4) and is connected to the liquid inlet of the oil cylinder (107). The liquid inlet of the oil return pipe (3) passes through the inner wall of the cabinet (1) and the box (4) and is connected to the liquid outlet of the oil cylinder (107). The partition plate (102), the acoustic drive power supply (101) and the oil cylinder (107) are respectively installed on the inner wall of the box (4).

10. An online detection device for reactor oil chromatography, characterized in that: The online transformer oil chromatography detection device according to any one of claims 1-9 can also be applied to reactor oil detection.

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