A transformer oil tank with a quick self-pressure relief function and a method of using the same

Abstract

The application discloses a transformer oil tank with a quick self-pressure relief function and a use method thereof, and relates to the technical field of transformer equipment, which comprises a transformer oil tank body, a tank cover and an exhaust guide rail, a gas relief port is symmetrically arranged on the top of the tank cover, a top gas connection plate is installed at the output end of the exhaust guide rail, guide push seats are symmetrically installed at the outer end of the top gas connection plate, and gas injection nozzles are installed at the top of the guide push seats. The application is characterized in that the inside of the transformer oil tank body is provided with an inflation and combustion reduction assembly. The inflation and combustion reduction assembly works from bottom to top to push the oxygen in the transformer oil tank body out of the gas relief port, and inert gas is supplemented into the transformer oil tank body to further reduce the oxygen content in the oil tank, so that the generation of combustible gas is reduced. When a fault occurs in the transformer and the oil temperature rapidly rises, the inflation and combustion reduction assembly is rapidly started to discharge the high-temperature oil layer and inject nitrogen, so that the risk of fire and explosion is effectively reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transformer equipment, in particular to a transformer oil tank with a rapid self-pressure relief function and a use method thereof. BACKGROUND

[0002] The transformer oil tank is a key component of the transformer, which provides a protective and supporting space for the iron core and winding, etc. The internal components of the oil tank are protected by the sealing structure to avoid the direct influence of the external environment on the internal components of the transformer. Not only can it prevent direct contact between the internal components of the oil tank and the external environment, but also can play an electrical insulation role to ensure the safe and reliable operation of the transformer. During the operation of the transformer, the internal pressure of the oil tank will increase due to the high temperature of the internal electrical components and the vaporization of the oil. Therefore, pressure relief is an important means to reduce the internal pressure of the transformer and protect the integrity of the oil tank.

[0003] The defects of the existing transformer oil tank are:

[0004] 1. The patent document CN210429497U discloses a transformer oil tank with high heat dissipation. However, the transformer oil tank cannot discharge the oxygen inside the transformer oil tank during pressure relief, which increases the energy loss in the transmission process and increases the risk of fire and explosion.

[0005] 2. The patent document CN219778656U discloses a transformer oil tank explosion-proof reinforcing structure and a transformer oil tank. However, the transformer oil tank cannot clean the oil stains and accumulations near the pressure relief port, which will cause the pressure in the oil tank to continuously rise and cause safety accidents, and cannot ensure the continuous and reliable operation of the transformer.

[0006] 3. The patent document CN111564295B discloses a transformer oil tank convenient for maintenance. However, the transformer oil tank cannot simultaneously relieve the gas in the tank during pressure relief, and the slow pressure relief rate is not conducive to rapidly reducing the internal pressure of the transformer in emergency situations, and cannot ensure the stable operation of the power system.

[0007] 4. The patent document CN219393129U discloses a wear-resistant transformer oil tank with a self-pressure relief structure. However, the transformer oil tank cannot monitor the state of oil spattering out during pressure relief, which may indicate that there is a fault in the pressure relief valve, the internal pressure of the oil tank is too high, etc. abnormal, and cannot analyze the problems in the pressure relief process according to the detection data of the oil spattering out to improve the pressure relief efficiency and safety. SUMMARY

[0008] The present application aims to provide a transformer oil tank with a rapid self-pressure relief function and a use method thereof to solve the problems raised in the background art.

[0009] In order to achieve the above object, the present application provides the following technical scheme: a transformer oil tank with a quick self-pressure relief function, comprising a transformer oil tank body, a tank cover and an exhaust guide rail, the top of the transformer oil tank body is provided with the tank cover, the top of the tank cover is symmetrically provided with a pressure relief port, and the inner side of the transformer oil tank body is provided with an inflation and combustion reduction assembly.

[0010] The inflation and combustion reduction assembly comprises an exhaust guide rail, a top gas receiving plate, a guide push seat and a gas injection nozzle, the exhaust guide rail is installed on the inner wall of the transformer oil tank body, the top gas receiving plate is installed at the output end of the exhaust guide rail, the guide push seat is symmetrically installed at the outer end of the top gas receiving plate, and the gas injection nozzle is installed at the top of the guide push seat.

[0011] Preferably, the bottom of the guide push seat is provided with an inert gas storage frame, and the outer end of the inert gas storage frame is provided with an air inlet pipe.

[0012] Preferably, the inner wall of the pressure relief port is provided with a butt joint groove, the inner wall of the butt joint groove is provided with a square groove, the inner side of the square groove is provided with a pressure relief hand lever, the extension end of the pressure relief hand lever is provided with a shielding push plate, the inner wall of the pressure relief port is symmetrically provided with a side sliding groove, the outer end of the shielding push plate slides in the inner side of the side sliding groove, and the end of the shielding push plate close to the butt joint groove is provided with a sealing gasket.

[0013] Preferably, the top of the transformer oil tank body is symmetrically provided with a top exhaust port, the top exhaust port is communicated with the pressure relief port, the inner side of the top exhaust port is provided with an oil leakage detection probe, an oil quality detector is installed on the inner wall of the transformer oil tank body, and an oil temperature sensor is installed on the bottom wall of the transformer oil tank body.

[0014] Preferably, the bottom end of the outer end of the transformer oil tank body is provided with a pressure relief port, the outer side of the pressure relief port is provided with a pressure relief valve, and the top of the tank cover is provided with an electrode column.

[0015] Preferably, the inner wall of the transformer oil tank body is provided with an inner wall fixing seat, the top of the inner wall fixing seat is provided with a lifting air cylinder, the output end of the lifting air cylinder is provided with a blowdown receiving frame, the outer side of the blowdown receiving frame is provided with a feeding hand lever, and the extension end of the feeding hand lever is provided with a driving inner column.

[0016] Preferably, the outer side of the driving inner column is symmetrically provided with a driving groove, the inner side of the driving groove is provided with an adaptive hand lever, the extension end of the adaptive hand lever is provided with a blowdown arc frame, the outer side of the blowdown arc frame is provided with a filling groove, the inner side of the filling groove is provided with a cleaning arc pad, and the outer side of the driving inner column is provided with a semicircular scraping strip.

[0017] Preferably, the top of the box cover is provided with a pressure relief controller, the top of the box cover is provided with a pressure gauge, the top of the box cover is provided with a sound and light alarm lamp, the pressure relief controller is composed of a pressure relief exhaust module, an oxygen removal module and a pressure relief dredging module, the pressure relief exhaust module is electrically connected with a pressure relief handle, a pressure relief valve, an oil leakage detection probe, a pressure gauge and an oil level radar sensor, the oxygen removal module is electrically connected with a gas filling and fire reducing assembly and an external gas supply device, and the pressure relief dredging module is electrically connected with a lifting cylinder, a feeding handle and an adaptive handle.

[0018] The application discloses a use method of a transformer oil tank with a quick self-pressure relief function.

[0019] In step S1, the internal pressure of the transformer oil tank body is increased due to high temperature of internal electrical elements and vaporization of oil liquid during transformer operation, and the pressure relief valve works to discharge part of the oil liquid and take away part of heat to reduce the overall temperature of the transformer.

[0020] In step S2, the gas filling and fire reducing assembly works to push the oxygen in the transformer oil tank body from bottom to top to discharge the oxygen from the exhaust pressure port, and inert gas is supplemented into the transformer oil tank body to further reduce the oxygen content in the transformer oil tank body.

[0021] In step S3, the lifting cylinder drives the pollution receiving frame to move downwards to drive the semicircular scraping strip at the outer end of the inner column to scrape and remove the oil stains and accumulations near the inner wall of the pressure relief port of the transformer oil tank body.

[0022] Preferably, in step S1, the following step is further included.

[0023] In step S11, the oil level radar sensor detects the oil level in the transformer oil tank body, and the exhaust pressure port is opened to discharge gas when the oil level is lower than a preset oil level.

[0024] In step S3, the following step is further included.

[0025] In step S31, the feeding handle drives the inner column to move to the inner side of the pressure relief port, and the pollution arc frame moves outwards to clean the dirt on the inner side of the pressure relief port.

[0026] Compared with the prior art, the application has the following beneficial effects.

[0027] 1、The present application is provided with a gas filling and combustion reducing assembly on the inside of the transformer oil tank, which works from bottom to top to push the oxygen in the transformer oil tank out of the pressure relief port, and further reduces the oxygen content in the oil tank by supplementing inert gas, thereby reducing the generation of flammable gas, and the oxygen-deficient environment can reduce the oxidation of materials inside the transformer, thereby improving the electrical conductivity of the materials and reducing energy loss during transmission, which has a positive effect on improving the overall electrical performance of the transformer, and the improved insulation performance of the transformer ensures the stable operation of the power system, and when the oil temperature rises sharply due to internal faults of the transformer, the gas filling and combustion reducing assembly is quickly started to discharge the high-temperature oil layer and inject nitrogen, which will quickly decompose and absorb a large amount of heat at high temperature, effectively reducing the risk of fire and explosion.

[0028] 2、The present application is provided with a semi-circular scraping strip on the outside of the drive inner column, and the lifting cylinder drives the sewage support bracket to move down to clean the oil stains and accumulations near the pressure relief port with the semi-circular scraping strip and the cleaning arc pad on the outer end of the drive inner column, which can ensure that the pressure relief valve can be quickly and smoothly opened when needed, thereby effectively releasing the pressure in the oil tank, and the impurity cleaning prevents the pressure relief valve from being blocked by oil stains and accumulations, which can cause the pressure in the oil tank to continue to rise and cause safety accidents, thereby improving the overall safety of the transformer, and the oil stain and accumulation cleaning maintains the stability of the insulation performance and heat dissipation performance of the transformer, ensuring that the transformer can continue to operate reliably.

[0029] 3、The present application is provided with a pressure relief port symmetrically and penetratingly arranged on the top of the tank cover, and the pressure relief valve works to release part of the oil and take away part of the heat during the pressure relief process of the transformer oil tank, thereby reducing the overall temperature of the transformer, and the pressure relief port is opened for gas pressure relief, and the oil pressure relief and gas pressure relief are synchronized to speed up the pressure relief rate, which helps to quickly reduce the internal pressure of the transformer in emergency situations and prevent safety accidents caused by excessive pressure, and accurate oil level monitoring and pressure relief control ensure the accuracy and reliability of the pressure relief process, which helps to prevent safety accidents caused by excessively low or high oil level, and efficient heat dissipation and pressure relief measures help to maintain the stability of the internal environment of the transformer, thereby improving the overall performance of the equipment, which is of great significance for ensuring the stable operation of the power system and providing high-quality power supply.

[0030] 4、The oil leakage detection probe is installed on the inner side of the top discharge port, the oil spouting and splashing during pressure relief may cause fire, scalding and other safety hazards, the oil spouting and splashing is monitored in real time, and measures are taken in time to prevent safety accidents, the oil spouting and splashing may mean that there is a pressure relief valve failure, excessive pressure in the oil tank and other abnormalities during pressure relief, the oil spouting and splashing is detected to determine whether the pressure relief is smoothly carried out, the pressure relief effect is ensured, the problems in the pressure relief process are analyzed according to the detection data of the oil spouting and splashing to improve the pressure relief efficiency and safety, the maintenance cost is reduced, and the reliability and availability of the transformer equipment are improved. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a three-dimensional structure schematic diagram of the present application;

[0032] Figure 2 It is a front internal structure schematic diagram of the transformer oil tank body of the present application;

[0033] Figure 3 It is an internal structure schematic diagram of the gas discharge port of the present application;

[0034] Figure 4 It is an enlarged structure schematic diagram of A of the present application;

[0035] Figure 5 It is a three-dimensional structure schematic diagram of the gas filling and combustion reducing assembly of the present application;

[0036] Figure 6 It is a driving inner column connection structure schematic diagram of the present application;

[0037] Figure 7 It is an enlarged structure schematic diagram of B of the present application;

[0038] Figure 8 It is a driving inner column side internal structure schematic diagram of the present application;

[0039] Figure 9 It is a pressure relief controller system diagram of the present application;

[0040] Figure 10 It is a work flow diagram of the present application.

[0041] In the figure: 1, transformer oil tank body; 2, tank cover; 3, air release pressure port; 4, exhaust guide rail; 5, inner wall fixed seat; 6, drive inner column; 7, pressure relief controller; 8, pressure relief port; 9, pressure relief valve; 10, oil quality detector; 11, oil temperature sensor; 12, top discharge port; 13, oil leakage detection probe; 14, pressure gauge; 15, audible and visual alarm lamp; 16, electrode column; 17, butt joint sink; 18, square groove; 19, pressure relief hand lever; 20, shielding push plate; 21, side sliding groove; 22, sealing gasket; 23, top gas connection plate; 24, guide push seat; 25, inert gas storage frame; 26, gas injection nozzle; 27, gas inlet pipe; 28, oil level radar sensor; 29, lifting cylinder; 30, sewage receiving frame; 31, feeding hand lever; 32, drive groove; 33, adaptive hand lever; 34, sewage arc frame; 35, filling groove; 36, cleaning arc pad; 37, semicircular scraping strip. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0043] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection or movable connection, can be detachable connection, or integral connection; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium; can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] Please refer to Figure 1 , Figure 2 and Figure 8The application provides a transformer oil tank with a rapid self-pressure relief function and a use method thereof.

[0046] The box cover 2 is provided with a gas relief port 3, a top gas connection plate 23 and a guide pusher 24, the top of the box cover 2 is symmetrically provided with the gas relief port 3, the inside of the transformer oil tank body 1 is provided with a gas filling and fire reducing assembly, the gas filling and fire reducing assembly comprises an exhaust guide rail 4, the top gas connection plate 23, the guide pusher 24 and a gas injection nozzle 26, the exhaust guide rail 4 is installed on the inner wall of the transformer oil tank body 1, the top gas connection plate 23 is installed at the output end of the exhaust guide rail 4, the guide pusher 24 is symmetrically installed at the outer end of the top gas connection plate 23, the gas injection nozzle 26 is installed at the top of the guide pusher 24, and the bottom of the guide pusher 24 is provided with an inert gas storage frame 25, and the outer end of the inert gas storage frame 25 is provided with an air inlet pipe 27.

[0047] The gas relief port 3 guarantees the discharge of the gas in the tank, the exhaust guide rail 4 works to push the oxygen in the transformer oil tank body 1 upwards from the bottom to the top through the top gas connection plate 23 and make the oxygen discharged from the gas relief port 3, the inert gas is supplemented into the transformer oil tank body 1 through the gas injection nozzle 26 to further reduce the oxygen content in the tank and reduce the generation of combustible gas, the cooperation of the guide pusher 24 and the gas injection nozzle 26 forms a circumferential surrounding when the oxygen is pushed upwards by the top gas connection plate 23, so that the upward discharge of the oxygen is more thorough, the external gas supply equipment works to deliver the inert gas into the inert gas storage frame 25 through the air inlet pipe 27 to ensure rapid response, the oxygen-deficient environment can reduce the oxidation of the materials in the transformer, when the oil temperature in the transformer rises sharply due to a fault, the gas filling and fire reducing assembly is rapidly started to discharge the high-temperature oil layer and inject nitrogen, and the nitrogen can be rapidly decomposed under high temperature to absorb a large amount of heat.

[0048] The fire needs three conditions of combustible material, oxygen and ignition source to simultaneously exist, and the reduction of the oxygen content is equivalent to removing the combustion-supporting material, so that the safety of the transformer is greatly improved, the oxygen-deficient environment can also slow down the aging speed of the materials in the transformer, so that the service life of the transformer is prolonged, the reduction of the oxygen content can slow down the process, the oxygen-deficient environment can reduce the oxidation speed of the materials in the transformer, so that the service life of the insulation material is prolonged, the oxygen-deficient environment can also reduce the impurities in the transformer, so that the noise during the operation of the transformer is reduced, the nitrogen can also dilute the oxygen in the air to achieve the effect of suffocation and fire extinguishing. The efficient fire extinguishing mechanism can rapidly control the fire and reduce the loss.

[0049] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , a transformer oil tank with a rapid self-pressure relief function and a use method thereof;

[0050] The transformer oil tank body 1 is provided with a pressure relief valve 9, a gas pressure port 3 and a shielding push plate 20, an outer end bottom end of the transformer oil tank body 1 is provided with a pressure relief port 8, the outer side of the pressure relief port 8 is provided with the pressure relief valve 9, the top of the tank cover 2 is provided with an electrode column 16, the inner wall of the gas pressure port 3 is provided with a butt sinking groove 17, the inner wall of the butt sinking groove 17 is provided with a square groove 18, the inner side of the square groove 18 is provided with a pressure relief hand rod 19, the telescopic end of the pressure relief hand rod 19 is provided with the shielding push plate 20, the inner side of the butt sinking groove 17 is provided with a side sliding groove 21, and the outer end of the shielding push plate 20 is provided with a sealing gasket 22.

[0051] The transformer oil tank body 1 is provided with a pressure relief valve 9, a gas pressure port 3 and a shielding push plate 20, an outer end bottom end of the transformer oil tank body 1 is provided with a pressure relief port 8, the outer side of the pressure relief port 8 is provided with the pressure relief valve 9, the top of the tank cover 2 is provided with an electrode column 16, the inner wall of the gas pressure port 3 is provided with a butt sinking groove 17, the inner wall of the butt sinking groove 17 is provided with a square groove 18, the inner side of the square groove 18 is provided with a pressure relief hand rod 19, the telescopic end of the pressure relief hand rod 19 is provided with the shielding push plate 20, the inner side of the butt sinking groove 17 is provided with a side sliding groove 21, and the outer end of the shielding push plate 20 is provided with a sealing gasket 22.

[0052] Please refer to Figure 1 , Figure 5 and Figure 6 , a transformer oil tank with a quick self-pressure relief function and a use method thereof;

[0053] The transformer oil tank body 1 is provided with a pressure relief valve 9, a gas pressure port 3 and a shielding push plate 20, an outer end bottom end of the transformer oil tank body 1 is provided with a pressure relief port 8, the outer side of the pressure relief port 8 is provided with the pressure relief valve 9, the top of the tank cover 2 is provided with an electrode column 16, the inner wall of the gas pressure port 3 is provided with a butt sinking groove 17, the inner wall of the butt sinking groove 17 is provided with a square groove 18, the inner side of the square groove 18 is provided with a pressure relief hand rod 19, the telescopic end of the pressure relief hand rod 19 is provided with the shielding push plate 20, the inner side of the butt sinking groove 17 is provided with a side sliding groove 21, and the outer end of the shielding push plate 20 is provided with a sealing gasket 22.

[0054] The oil leakage detection probe 13 on the inner side of the top row of ports 12 monitors the splashing state of the oil when the pressure is released. The oil quality detector 10 detects the quality of the oil in the transformer tank 1 to ensure its good performance. The oil temperature sensor 11 detects the temperature of the oil when the pressure is released. The splashing of oil may contaminate the equipment and environment around the transformer, causing corrosion or damage to the equipment. Timely detection and processing can prevent equipment damage and prolong its service life. The splashing of oil during the pressure relief process may cause safety hazards such as fire and scalding. The splashing of oil may indicate that there is a fault in the pressure relief valve 9 or the internal pressure of the tank is too high during the pressure relief process. Detecting the splashing of oil can determine whether the pressure relief is proceeding smoothly and ensure the effectiveness of the pressure relief. The detection data of the splashing of oil can be analyzed to identify problems during the pressure relief process.

[0055] Please refer to Figure 1 、 Figure 5 and Figure 6 , a transformer tank with a quick self-pressure relief function and its use method;

[0056] The inner wall fixing seat 5, the pollution discharge support 30, and the driving inner column 6 are installed on the inner wall of the transformer tank body 1. The top of the inner wall fixing seat 5 is installed with a lifting cylinder 29. The output end of the lifting cylinder 29 is installed with a pollution discharge support 30. The outer side of the pollution discharge support 30 is installed with a feeding hand rod 31. The telescopic end of the feeding hand rod 31 is installed with a driving inner column 6. The outer side of the driving inner column 6 is symmetrically provided with a driving groove 32. The inner side of the driving groove 32 is installed with an adaptive hand rod 33. The telescopic end of the adaptive hand rod 33 is installed with a pollution discharge arc bracket 34. The outer side of the pollution discharge arc bracket 34 is provided with a filling groove 35. The inner side of the filling groove 35 is installed with a cleaning arc pad 36. The outer side of the driving inner column 6 is installed with a semicircular scraping strip 37.

[0057] The inner wall fixing seat 5 provides an installation position for the lifting cylinder 29 while ensuring its stability during operation. The pollution discharge support 30 provides an installation position for the feeding hand rod 31 while ensuring the stability of the driving inner column 6 during movement. The lifting cylinder 29 drives the pollution discharge support 30 to move downward, causing the semicircular scraping strip 37 at the outer end of the driving inner column 6 to push and remove the oil stains and accumulations near the inner wall of the pressure relief port 8 of the transformer tank body 1. The adaptive hand rod 33 inside the driving groove 32 drives the pollution discharge arc bracket 34 axially after the feeding hand rod 31 pushes the driving inner column 6 to the inside of the pressure relief port 8. The pollution discharge arc bracket 34 moves outward, causing the cleaning arc pad 36 to abut against the inner wall of the pressure relief port 8 to clean the dirt inside the pressure relief port 8.

[0058] The cleaning of impurities can ensure that the pressure relief valve 9 can open quickly and smoothly when needed, effectively release the pressure in the oil tank, and prevent the pressure relief valve 9 from being blocked by oil dirt and accumulation, causing the pressure in the oil tank to continue to rise and causing a safety accident. Long-term accumulation of oil dirt and accumulation may cause corrosion or wear of the pressure relief valve 9, shortening its service life. Regular cleaning can maintain the good condition of the pressure relief valve 9 and prolong its service life, thereby reducing the cost of replacement and maintenance. Oil dirt and accumulation may cause the pressure relief valve 9 to fail or malfunction, which may cause greater problems. Regular cleaning can prevent such failures from occurring, reducing downtime and maintenance costs due to failures.

[0059] Please refer to Figure 1 、 Figure 5 and Figure 6 , a transformer oil tank with a quick self-pressure relief function and a method for using the same;

[0060] The tank cover 2 is provided with a pressure relief controller 7, a pressure gauge 14, and an audible and visual alarm lamp 15. The pressure relief controller 7 comprises a pressure relief and venting module, an oxygen removal module, and a pressure relief and unblocking module. The pressure relief and venting module is electrically connected to the pressure relief handle 19, the pressure relief valve 9, the oil leakage detection probe 13, the pressure gauge 14, and the oil level radar sensor 28. The oxygen removal module is electrically connected to the gas filling and flame reduction assembly and the external gas supply device. The pressure relief and unblocking module is electrically connected to the lifting cylinder 29, the feeding handle 31, and the adaptive handle 33.

[0061] The pressure gauge 14 detects the pressure in the transformer oil tank body 1. When the pressure remains high after the liquid and gas are relieved, the audible and visual alarm lamp 15 works to alert the staff. The transmission results of the oil leakage detection probe 13, the pressure gauge 14, and the oil level radar sensor 28 of the pressure relief controller 7 are integrated and driven to control the pressure relief handle 19, the pressure relief valve 9, the gas filling and flame reduction assembly, the external gas supply device, the lifting cylinder 29, the feeding handle 31, and the adaptive handle 33 to achieve the best quick pressure relief effect.

[0062] The method for using the transformer oil tank comprises the following steps:

[0063] Step S1, during the operation of the transformer, the internal temperature of the transformer is high due to the high temperature of the internal electrical components and the vaporization of the oil, which causes the pressure in the transformer oil tank body 1 to rise. The pressure relief valve 9 works to release part of the oil, thereby reducing the overall temperature of the transformer.

[0064] Step S2, the gas filling and flame reduction assembly works to push the oxygen in the transformer oil tank body 1 from bottom to top, causing it to be discharged from the venting pressure port 3. Inert gas is supplemented into the transformer oil tank body 1 to further reduce the oxygen content in the oil tank.

[0065] Step S3, the lifting cylinder 29 drives the pollution abutment 30 to move down, so that the semicircle scraping strip 37 at the outer end of the driving inner column 6 pushes and scrapes the oil dirt and accumulation near the inner wall of the pressure relief port 8 of the transformer tank 1.

[0066] In step S1, the following steps are further included:

[0067] Step S11, the oil level radar sensor 28 detects the oil level in the transformer tank 1, and the gas pressure relief port 3 is opened for gas pressure relief when the oil level is lower than the preset oil level.

[0068] In step S3, the following steps are further included:

[0069] Step S31, the feeding hand lever 31 pushes the driving inner column 6 to move outside the pressure relief port 8, so that the cleaning arc pad 36 cleans the dirt inside the pressure relief port 8.

[0070] Working principle: when using the device, the internal pressure of the transformer tank 1 increases due to the high temperature of the internal electrical components and the vaporization of the oil during the operation of the transformer, the pressure relief valve 9 works to release part of the oil, which carries away part of the heat to reduce the overall temperature of the transformer, the oil level radar sensor 28 detects the oil level in the transformer tank 1, and the gas pressure relief port 3 is opened for gas pressure relief when the oil level is lower than the preset oil level.

[0071] The inflation and combustion reduction assembly pushes the oxygen in the transformer tank 1 from bottom to top to make it discharge from the gas pressure relief port 3, and the inert gas is supplemented into the transformer tank 1 to further reduce the oxygen content inside the tank.

[0072] The lifting cylinder 29 drives the pollution abutment 30 to move down, so that the semicircle scraping strip 37 at the outer end of the driving inner column 6 pushes and scrapes the oil dirt and accumulation near the inner wall of the pressure relief port 8 of the transformer tank 1, and the feeding hand lever 31 pushes the driving inner column 6 to move outside the pressure relief port 8, so that the cleaning arc pad 36 cleans the dirt inside the pressure relief port 8.

[0073] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A transformer oil tank with rapid self-pressure relief function, comprising a transformer oil tank body (1), a tank cover (2), and an exhaust guide rail (4), characterized in that: The top of the transformer tank (1) is equipped with a tank cover (2), and the top of the tank cover (2) is symmetrically provided with venting ports (3). The inside of the transformer tank (1) is provided with an air-filled flame-retardant assembly. The gas-filled combustion-reducing assembly includes an exhaust guide rail (4), a top gas receiving plate (23), a guide pusher (24), and an injection nozzle (26). The exhaust guide rail (4) is installed on the inner wall of the transformer tank (1). The top gas receiving plate (23) is installed at the output end of the exhaust guide rail (4). The guide pusher (24) is symmetrically installed at the outer end of the top gas receiving plate (23). The injection nozzle (26) is installed on the top of the guide pusher (24). The bottom of the outer end of the transformer tank (1) is provided with a pressure relief port (8), a pressure relief valve (9) is installed on the outside of the pressure relief port (8), and an electrode post (16) is installed on the top of the tank cover (2). An inner wall fixing seat (5) is installed on the inner wall of the transformer tank (1). A lifting cylinder (29) is installed on the top of the inner wall fixing seat (5). A drain connection frame (30) is installed at the output end of the lifting cylinder (29). A feed lever (31) is installed on the outside of the drain connection frame (30). A drive inner column (6) is installed at the telescopic end of the feed lever (31). The drive inner column (6) is symmetrically provided with drive grooves (32) on the outside. An adaptation handle (33) is installed on the inside of the drive groove (32). A sewage discharge arc frame (34) is installed at the telescopic end of the adaptation handle (33). A filling groove (35) is provided on the outside of the sewage discharge arc frame (34). A cleaning arc pad (36) is installed on the inside of the filling groove (35). A semi-circular scraper (37) is installed on the outside of the drive inner column (6).

2. A transformer oil tank with rapid self-relief function according to claim 1, characterized in that: An inert gas storage frame (25) is installed at the bottom of the guide push base (24), and an air inlet pipe (27) is installed at the outer end of the inert gas storage frame (25).

3. A transformer oil tank with rapid self-pressure relief function according to claim 1, characterized in that: The inner wall of the vent (3) is provided with a docking groove (17), and the inner wall of the docking groove (17) is provided with a square groove (18). A pressure relief lever (19) is installed on the inner side of the square groove (18). A blocking push plate (20) is installed on the telescopic end of the pressure relief lever (19). A side sliding groove (21) is symmetrically provided on the inner wall of the vent (3), and the outer end of the blocking push plate (20) slides on the inner side of the side sliding groove (21). A sealing gasket (22) is installed on the end of the blocking push plate (20) near the docking groove (17).

4. A transformer oil tank with rapid self-relief function according to claim 1, characterized in that: The top of the transformer tank (1) is symmetrically provided with a top drain port (12), and the top drain port (12) is connected to the venting port (3). An oil leakage detection probe (13) is installed on the inner side of the top drain port (12). An oil quality detector (10) is installed on the inner wall of the transformer tank (1). An oil temperature sensor (11) is installed on the bottom wall of the transformer tank (1).

5. A transformer oil tank with rapid self-relief function according to claim 1, characterized in that: The top of the box cover (2) is equipped with a pressure relief controller (7), a pressure gauge (14), and an audible and visual alarm light (15). The pressure relief controller (7) consists of a pressure relief module, an oxygen removal module, and a pressure relief unblocking module. The pressure relief module is electrically connected to the pressure relief lever (19), the pressure relief valve (9), the oil leakage detection probe (13), the pressure gauge (14), and the oil level radar sensor (28). The oxygen removal module is electrically connected to the gas filling and combustion reduction component and the external gas supply equipment. The pressure relief unblocking module is electrically connected to the lifting cylinder (29), the feed lever (31), and the adaptation lever (33).

6. A method of using a transformer oil tank with rapid self-pressure relief function, applicable to the transformer oil tank with rapid self-pressure relief function as described in any one of claims 1-5, characterized in that, The method of using this transformer oil tank includes the following steps: Step S1: During the operation of the transformer, the high temperature of the internal electrical components and the vaporization of the oil will cause the internal pressure of the transformer tank (1) to rise. The pressure relief valve (9) will work to release some of the oil and take away some of the heat, thereby reducing the overall temperature of the transformer. Step S2: The gas-filling and flame-reducing component works from bottom to top to push the oxygen in the transformer tank (1) out through the vent (3), and inert gas is added into the transformer tank (1) to further reduce the oxygen content inside the tank. Step S3: The lifting cylinder (29) drives the drain bracket (30) to move down, so that the semi-circular scraper (37) at the outer end of the inner column (6) pushes and scrapes away the oil stains and accumulations near the inner wall of the pressure relief port (8) of the transformer tank (1).

7. The method of using a transformer oil tank with rapid self-pressure relief function according to claim 6, characterized in that, Step S1 further includes the following steps: Step S11: The oil level radar sensor (28) detects the oil level in the transformer tank (1). When the oil level is lower than the preset oil level, the vent (3) opens to release gas pressure. Step S3 further includes the following steps: Step S31: The feed lever (31) pushes the drive inner column (6) to move outward from the rear drain arc frame (34) located inside the pressure relief port (8) so that the cleaning arc pad (36) cleans the dirt inside the pressure relief port (8).

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