Oil-immersed transformer with intelligent protection function

Abstract

The application discloses an oil-immersed transformer with intelligent protection function, which comprises an oil tank and further comprises a plurality of radiators fixedly attached to the outer walls of the oil tank, a waste discharge mechanism fixedly connected to the inner wall of one side of the oil tank, an oil supply mechanism fixedly connected to the inner wall of the other side of the oil tank, a plurality of windings fixedly installed on the inner wall of the bottom end of the oil tank, a plurality of partitions fixedly connected to the inner wall of the oil tank at equal intervals, wherein the windings pass through the partitions, each partition is provided with a temperature sensor, and each partition comprises a plurality of perforations one and perforations two, and a plurality of U-shaped oil inlet pipes fixedly connected between the oil tank and the radiators and arranged on the upper side of the oil tank, wherein each U-shaped oil inlet pipe is provided with an electromagnetic valve one, the oil-immersed transformer with intelligent protection function can effectively avoid the carbonization of insulation materials due to high temperature, the arc burn of windings and the secondary breakdown of oil gap due to the accumulation of conductive particles.

Description

Technical Field

[0001] This invention relates to the field of oil-immersed transformer technology, and more particularly to an oil-immersed transformer with intelligent protection functions. Background Technology

[0002] Oil-immersed transformers are core equipment in power systems, and their internal insulation performance and operational reliability directly affect the safety and stability of the power grid. Currently, the internal protection of oil-immersed transformers mainly relies on gas relays, pressure relief valves, thermometers, and electrical quantity protection devices (such as differential protection and overcurrent protection). While these protection technologies can effectively cut off circuits, release pressure, and trigger alarms when a serious transformer fault occurs, they still have the following shortcomings in practical engineering applications:

[0003] Most existing protection devices operate on a "fault-triggered" mode. However, before they can activate, the electric arc and high temperature generated at the fault point have already caused irreversible damage to the insulation material. In other words, existing protection systems lack proactive mechanical intervention mechanisms within the time window between the occurrence of a fault and electrical tripping, and therefore cannot effectively suppress the fault's development process. Summary of the Invention

[0004] This invention discloses an oil-immersed transformer with intelligent protection function, which aims to solve the technical problem that the existing protection system lacks active mechanical intervention methods within the time window between the occurrence of a fault and electrical tripping, and is unable to effectively suppress the fault development process.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An oil-immersed transformer with intelligent protection function includes an oil tank, and further includes: multiple radiators fixedly attached to multiple outer walls of the oil tank; a waste discharge mechanism fixedly connected to one inner wall of the oil tank; an oil supply mechanism fixedly connected to the other inner wall of the oil tank; multiple windings fixedly installed on the bottom inner wall of the oil tank; multiple partitions equidistantly fixedly connected to the inner wall of the oil tank, with multiple windings passing through multiple partitions simultaneously, each partition having a temperature sensor installed on it, and each partition having multiple through holes one and two; multiple U-shaped oil inlet pipes fixedly connected between the oil tank and the radiators, respectively, and positioned at the top, each U-shaped oil inlet pipe having a solenoid valve one installed on it; and multiple U-shaped oil drain pipes. The system consists of several pipes, each fixedly connected between the oil tank and the radiator, positioned at a lower position. Each U-shaped drain pipe is equipped with a solenoid valve 2. A multi-port pipe 2 has multiple output ends fixedly connected to the inner wall of one side of the oil tank, corresponding to the spaces between two adjacent partitions. A multi-port pipe 1 is fixedly connected to the input end of multi-port pipe 2, and a solenoid valve 3 is installed at the connection point. Multiple extension pipes are fixedly connected to multiple input ends of multi-port pipe 1, with the ends of the extension pipes extending into the radiator. An oil supply mechanism is fixedly connected to one of the input ends of multi-port pipe 1. Multiple oil pumps 1 and check valves 1 are grouped together and installed at the connection points of multi-port pipe 1 and the radiator.

[0007] By setting multiple baffles, the entire oil tank is divided into multiple independent chambers, and temperature sensors are installed in each chamber to monitor the internal temperature in real time. When an abnormal temperature is detected, the abnormal chamber is quickly located based on the monitoring results of the temperature sensors. Then, the self-circulation path is blocked, the waste discharge channel is opened, and the oil inlet channel is opened. Cold oil is used to directly flush the fault point. This action can be carried out simultaneously with the tripping action of the electrical protection system. After the transformer is de-energized, the cooling effect can be continuously enhanced to ensure continuous cooling, dilution, and inhibition, thereby effectively preventing secondary breakdown of insulation materials due to high temperature carbonization, windings due to arc burns, and oil gaps due to the accumulation of conductive particles.

[0008] In a preferred embodiment, each of the partitions includes: a hollow frame whose outer periphery is fixedly attached to the inner walls of multiple sides of the fuel tank, and the outer wall of the winding is attached to the inner wall of the hollow frame; and an inner sliding plate that is movably attached to the inner wall of the hollow frame.

[0009] The positions of the multiple perforations one and the multiple perforations two correspond one-to-one, and when the perforations one and two overlap, they are merged into a tapered hole with the diameter decreasing from top to bottom;

[0010] Each of the partitions further includes: a support plate 1, fixedly connected to the top outer wall of the inner slide plate; a triangular abutment 1 and multiple springs 2, simultaneously fixedly connected to one side outer wall of the support plate 1;

[0011] Each of the partitions further includes: a through slot, which is disposed through the inner wall of the top of the hollow frame, and a support plate 1 is movably connected in the through slot; a support plate 2, which is fixedly connected to the outer wall of the top of the hollow frame, and the other ends of multiple springs 2 are simultaneously fixedly connected to one side of the outer wall of the support plate 2.

[0012] Each of the partitions further includes: an electric push rod, fixedly connected to the top outer wall of the hollow frame; and a second triangular abutment, fixedly connected to the output end of the electric push rod and movably fitted with the first triangular abutment.

[0013] By installing a baffle, when an abnormality is detected, the electric push rod pushes the triangular stop block two to move horizontally, which can drive the inner slide plate to move horizontally within the hollow frame, so that the first and second perforations are staggered and completely sealed. This can prevent suspended impurities generated around the fault point from rising with the hot oil and spreading to the entire oil tank.

[0014] In a preferred embodiment, the waste discharge mechanism includes: a multi-port pipe three, whose multiple input ends are simultaneously and fixedly connected to the inner wall of one side of the oil tank, and the multiple input ends correspond to the space between two adjacent partitions; a solenoid valve four, installed at the confluence point of the multi-port pipe three; and a return pipe, fixedly connected to the inner wall of the same side of the oil tank, and located directly below the multi-port pipe three, on which a one-way valve two and an oil pump two are simultaneously installed.

[0015] The waste discharge mechanism further includes: a waste discharge box, with a multi-port pipe and a return pipe simultaneously connected to the inner wall of one side of the waste discharge box; a filter screen bracket, fixedly connected to the inner wall of the waste discharge box, and a filter screen fixedly connected to the inner wall of the filter screen bracket; and an oil discharge port, fixedly connected to the inner wall of one side of the waste discharge box, with a sealing plug filling one end of the oil discharge port.

[0016] With a waste discharge mechanism, when hot oil enters the waste discharge box, it can first pass through the filter screen to filter out suspended solids. After the abnormality is handled, the oil in the waste discharge box can be pumped out by oil pump two and returned to the oil tank to make up for the missing oil volume, or it can be directly discharged and collected through the oil outlet, so that the extracted hot oil can be quickly reused.

[0017] In a preferred embodiment, the oil supply mechanism includes: an oil reservoir, which is fixedly connected to a multi-port pipe; a movable sealing ring, which is fixedly embedded in the inner wall of the top of the oil reservoir; and a support rod, which is movably inserted into the movable sealing ring, and the top of the support rod is fixedly connected to a top plate.

[0018] The oil supply mechanism also includes: multiple springs, which are fixedly connected between the top plate and the top outer wall of the oil tank; a pressure plate, which is fixedly connected to the bottom end of the support rod, and a sealing sleeve is fixedly wrapped around its outer periphery, and the sealing sleeve is movably fitted inside the oil tank; a pressure sensor is installed at the bottom end of the pressure plate.

[0019] With an oil supply mechanism, in the event of a fault, the solenoid valve opens to establish a passage. At this time, the spring returns, squeezing the insulating oil inside the oil tank into the corresponding cavity for cooling. This structure can extend the cooling time to meet the needs of severe faults and high-temperature conditions. For minor and moderate faults, the clean insulating oil in the oil tank can be used first to ensure that the main circulation cooling system is not affected when the transformer is restored. The residual oil in the waste tank can be directly discharged and collected through the drain port.

[0020] As described above, an oil-immersed transformer with intelligent protection function includes an oil tank, and further includes: multiple radiators fixedly attached to multiple outer walls of the oil tank; a waste discharge mechanism fixedly connected to one inner wall of the oil tank; an oil supply mechanism fixedly connected to the other inner wall of the oil tank; multiple windings fixedly installed on the bottom inner wall of the oil tank; multiple partitions equidistantly fixedly connected to the inner wall of the oil tank, with multiple windings passing through multiple partitions simultaneously, each partition having a temperature sensor installed on it, and each partition including multiple through holes one and two; multiple U-shaped oil inlet pipes fixedly connected between the oil tank and the radiators, and positioned at the top, each U-shaped oil inlet pipe having a solenoid valve one installed on it; multiple U-shaped oil inlet pipes... The system comprises several U-shaped drain pipes, each fixedly connected between the oil tank and the radiator, positioned at a lower elevation. Each U-shaped drain pipe is equipped with a second solenoid valve. A second multi-port pipe has multiple output ends fixedly connected to the inner wall of one side of the oil tank, corresponding to the spaces between two adjacent partitions. A first multi-port pipe is fixedly connected to the input end of the second multi-port pipe, with a third solenoid valve installed at the connection. Multiple extension pipes are fixedly connected to multiple input ends of the first multi-port pipe, with the ends of the extension pipes extending into the radiator. An oil supply mechanism is fixedly connected to one input end of the first multi-port pipe. Multiple first oil pumps and first check valves are also included, each forming a group, and are installed at the connection between the first multi-port pipe and the radiator. This invention provides an oil-immersed transformer with intelligent protection functions, effectively preventing secondary breakdowns caused by high-temperature carbonization of the insulation material, arc burns of the windings, and accumulation of conductive particles in the oil gap. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an oil-immersed transformer with intelligent protection function proposed in this invention.

[0022] Figure 2 This is a schematic diagram of the internal structure of an oil-immersed transformer with intelligent protection function proposed in this invention.

[0023] Figure 3 This is a schematic diagram of a side pipe connection structure for an oil-immersed transformer with intelligent protection function proposed in this invention.

[0024] Figure 4This is a schematic diagram of the other side pipe connection structure of an oil-immersed transformer with intelligent protection function proposed in this invention.

[0025] Figure 5 This is a schematic diagram of the internal structure of the waste discharge mechanism of an oil-immersed transformer with intelligent protection function proposed in this invention.

[0026] Figure 6 This is a schematic diagram of the internal structure of the oil supply mechanism of an oil-immersed transformer with intelligent protection function proposed in this invention.

[0027] Figure 7 This is a schematic diagram of the partition structure of an oil-immersed transformer with intelligent protection function proposed in this invention.

[0028] In the diagram: 1. Waste discharge mechanism; 2. Oil tank; 3. Radiator; 4. Oil supply mechanism; 5. Winding; 6. Temperature sensor; 7. Baffle; 8. U-shaped oil inlet pipe; 9. U-shaped oil outlet pipe; 10. Solenoid valve one; 11. Solenoid valve two; 12. Solenoid valve three; 13. Multi-port pipe one; 14. Check valve one; 15. Oil pump one; 16. Multi-port pipe two; 17. Extension pipe; 101. Multi-port pipe three; 102. Solenoid valve four; 103. Return pipe; 104. Check valve two; 105. Oil pump two; 106. Waste discharge. 107. Filter screen; 108. Filter screen support; 109. Oil drain port; 401. Top plate; 402. Spring 1; 403. Oil reservoir; 404. Sealing sleeve; 405. Pressure plate; 406. Movable sealing ring; 407. Support rod; 701. Spring 2; 702. Support plate 1; 703. Triangular abutment 1; 704. Inner sliding plate; 705. Perforation 1; 706. Electric push rod; 707. Triangular abutment 2; 708. Support plate 2; 709. Through groove; 710. Hollow frame; 711. Perforation 2. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] The oil-immersed transformer with intelligent protection function disclosed in this invention is mainly applied to scenarios where oil-immersed transformers fail.

[0031] Reference Figures 1-4An oil-immersed transformer with intelligent protection function includes an oil tank 2, multiple radiators 3, a waste discharge mechanism 1, multiple windings 5, multiple partitions 7, multiple U-shaped oil inlet pipes 8, multiple U-shaped oil outlet pipes 9, a multi-port pipe 2 16, a multi-port pipe 13, and multiple extension pipes 17. The oil supply mechanism 4, multiple radiators 3 are fixedly attached to multiple outer walls of the oil tank 2, the waste discharge mechanism 1 is fixedly connected to one inner wall of the oil tank 2, the oil supply mechanism 4 is fixedly connected to the other inner wall of the oil tank 2, and multiple windings 5 ​​are fixedly installed on the bottom inner wall of the oil tank 2.

[0032] Multiple partitions 7 are fixedly connected to the inner wall of the oil tank 2 at equal intervals, and multiple windings 5 ​​pass through multiple partitions 7 simultaneously. Each partition 7 is equipped with a temperature sensor 6, and each partition 7 includes multiple through holes 705 and 711. Multiple U-shaped oil inlet pipes 8 are fixedly connected between the oil tank 2 and the radiator 3, and are positioned at the top. Each U-shaped oil inlet pipe 8 is equipped with a solenoid valve 10. Multiple U-shaped oil outlet pipes 9 are fixedly connected between the oil tank 2 and the radiator 3, and are positioned at the bottom. Each U-shaped oil outlet pipe 9 is equipped with a solenoid valve 11.

[0033] Multiple output ends of multi-port pipe 2 16 are simultaneously and fixedly connected to one side of the inner wall of oil tank 2, and respectively correspond to the two adjacent partitions 7; multi-port pipe 13 is fixedly connected to the input end of multi-port pipe 2 16, and a solenoid valve 3 12 is installed at the connection; multiple extension pipes 17 are respectively fixedly connected to multiple input ends of multi-port pipe 13, and the end of the extension pipe 17 extends into the radiator 3; the oil supply mechanism 4 is fixedly connected to one of the input ends of multi-port pipe 13; multiple oil pumps 15 and check valves 14, each oil pump 15 and check valve 14 forming a group, are respectively installed at the connection between multi-port pipe 13 and radiator 3.

[0034] The oil tank 2 is divided into multiple independent chambers by multiple partitions 7. Temperature sensors 6 are installed in each chamber to monitor the internal temperature in real time. Under normal use, the insulating oil can circulate through multiple perforations on each partition 7. When an abnormal temperature is detected, the abnormal chamber is quickly located based on the monitoring results of the temperature sensors 6. The self-circulation path between the radiator 3 and the oil tank 2 is quickly cut off by solenoid valve 10. Then, the waste discharge channel of the chamber in the waste discharge mechanism 1 is opened. The oil inlet channel of the chamber is opened by solenoid valve 32. Cold oil in the radiator 3 is drawn out by oil pump 15, or cold oil is supplied into the chamber by oil supply mechanism 4. The cold oil directly flushes the fault point, quickly removes heat, effectively prevents carbonization of the insulating material or arc formation, and the suspended impurities generated by the fault are carried out by the waste discharge channel through the flowing cold oil.

[0035] Based on the application of this structure to an independent power supply system, this action can be performed simultaneously with the tripping action of the electrical protection system. After the transformer is de-energized, the cooling effect can be continuously enhanced to ensure continuous cooling, dilution and inhibition, thereby effectively avoiding secondary breakdown caused by high temperature carbonization of insulation materials, arc burns of windings and accumulation of conductive particles in oil gaps.

[0036] Reference Figure 3 and Figure 5 In a preferred embodiment, the waste discharge mechanism 1 includes: a multi-port pipe 101, whose multiple input ends are simultaneously fixedly connected to the inner wall of one side of the oil tank 2, and the multiple input ends correspond to the space between two adjacent partitions 7; a solenoid valve 102, installed at the confluence point of the multi-port pipe 101; and a return pipe 103, fixedly connected to the inner wall of the same side of the oil tank 2, and located directly below the multi-port pipe 101. A one-way valve 104 and an oil pump 105 are simultaneously installed on the return pipe 103.

[0037] The waste discharge mechanism 1 also includes: a waste discharge box 106, with a multi-port pipe 101 and a return pipe 103 simultaneously connected to the inner wall of one side of the waste discharge box 106; a filter support 108, fixedly connected to the inner wall of the waste discharge box 106, and a filter 107 fixedly connected to the inner wall of the filter support 108; and an oil discharge port 109, fixedly connected to the inner wall of one side of the waste discharge box 106, with a sealing plug filling one end of the oil discharge port 109.

[0038] After quickly injecting cold oil, the hot oil at the fault location is squeezed out through the multi-port pipe 101. At this time, the oil contains suspended matter generated by the fault. When the hot oil enters the waste discharge box 106, it can pass through the filter screen 107 first to filter out the suspended matter. The filtered oil flows into the waste discharge box 106 for temporary storage. After the abnormality is handled, the oil in the waste discharge box 106 can be pumped out by the oil pump 105 and returned to the oil tank 2 to make up for the missing oil volume, or it can be directly discharged and collected through the oil outlet 109, so that the extracted hot oil can be quickly reused.

[0039] Reference Figure 7 In a preferred embodiment, each partition 7 includes: a hollow frame 710, the outer periphery of which is fixedly attached to the inner walls of multiple sides of the oil tank 2, and the outer wall of the winding 5 is attached to the inner wall of the hollow frame 710; and an inner sliding plate 704, which is movably attached to the inner wall of the hollow frame 710.

[0040] The positions of multiple perforations 705 and multiple perforations 711 are one-to-one, and when perforations 705 and 711 overlap, they are combined into a tapered hole with a diameter decreasing from top to bottom.

[0041] Each partition 7 also includes: a support plate 702, which is fixedly connected to the top outer wall of the inner slide plate 704; a triangular abutment 703 and multiple springs 701, which are also fixedly connected to one side outer wall of the support plate 702.

[0042] Each partition 7 also includes: a through groove 709, which is disposed through the inner wall of the top of the hollow frame 710, and a support plate 702 is movably connected in the through groove 709; a support plate 708, which is fixedly connected to the outer wall of the top of the hollow frame 710, and the other end of a plurality of springs 701 is simultaneously fixedly connected to one side of the outer wall of the support plate 708.

[0043] Each partition 7 also includes: an electric push rod 706, which is fixedly connected to the top outer wall of the hollow frame 710; and a second triangular abutment 707, which is fixedly connected to the output end of the electric push rod 706 and is movably fitted with the first triangular abutment 703.

[0044] When perforation 1 705 and perforation 2 711 overlap, they merge into a tapered hole with a decreasing diameter from top to bottom. Under normal operating conditions, this allows hot oil to rise easily while cold oil has difficulty flowing back during the insulating oil circulation process. When an abnormality is detected, the electric push rod 706 pushes the triangular stop block 2 707 to move horizontally and changes the contact position between the triangular stop block 2 707 and the triangular stop block 1 703. This stretches the spring 2 701, causing the inner sliding plate 704 to move horizontally within the hollow frame 710, thus misaligning perforation 1 705 and perforation 2 711 and completely sealing them. This prevents suspended impurities around the fault point from rising with the hot oil and spreading to the entire oil tank 2.

[0045] Reference Figure 6 In a preferred embodiment, the oil supply mechanism 4 includes: an oil storage tank 403, which is fixedly connected to the multi-port pipe 13; a movable sealing ring 406, which is fixedly embedded in the inner wall of the top of the oil storage tank 403; and a support rod 407, which is movably inserted into the movable sealing ring 406, and the top of the support rod 407 is fixedly connected to a top plate 401.

[0046] The oil supply mechanism 4 also includes: multiple springs 402, which are fixedly connected between the top plate 401 and the top outer wall of the oil tank 403; a pressure plate 405, which is fixedly connected to the bottom end of the support rod 407, and a sealing sleeve 404 is fixedly wrapped around its outer periphery, and the sealing sleeve 404 is movably fitted inside the oil tank 403, and a pressure sensor is installed at the bottom end of the pressure plate 405.

[0047] When a fault occurs, solenoid valve 12 opens to establish a passage. At this time, the stretched spring 402 rebounds, which can drive the support rod 407 to move down. This causes the pressure plate 405 to press down, squeezing the insulating oil inside the oil tank 403 to preferentially enter the corresponding cavity for cooling. As the pressure plate 405 continues to descend, the pressure sensor at its bottom senses the pressure and sends information to the oil pump 15. The pump then draws out the cold oil in the radiator 3 and delivers it to the corresponding cavity for cooling. This structure can extend the cooling time to meet the needs of severe faults and high-temperature conditions. For minor and moderate faults, the clean insulating oil in the oil tank 403 can be used preferentially to better flush out the suspended matter generated by the fault, so that the cavity is replaced by clean insulating oil. At the same time, the cold oil in the radiator 3 can be completely retained to ensure that the main circulation cooling system is not affected when the transformer is restored. The residual oil in the waste tank 106 can be directly discharged and collected through the drain port 109.

[0048] Working principle: The oil tank 2 is divided into multiple independent chambers by multiple partitions 7, and a temperature sensor 6 is installed in each chamber to monitor the internal temperature in real time. During normal use, the insulating oil circulates through multiple perforations on each partition 7. When an abnormal temperature is detected, the abnormal chamber is quickly located based on the monitoring results of the temperature sensor 6. The self-circulation path between the radiator 3 and the oil tank 2 is quickly cut off by solenoid valve 10. Then, the waste discharge channel of that chamber in the waste discharge mechanism 1 is opened, and the oil inlet channel of that chamber is opened by solenoid valve 12. The oil is then pumped in by oil pump 1. 15. Extract the cold oil from the radiator 3, or use the oil supply mechanism 4 to supply cold oil into the cavity to directly flush the fault point, quickly remove heat, effectively prevent carbonization of the insulation material or arc formation, and carry out suspended impurities generated by the fault through the waste discharge channel via the flowing cold oil. Based on the application of this structure in an independent power supply system, this action can be carried out simultaneously with the tripping action of the electrical protection system. After the transformer is de-energized, the cooling effect can be continuously enhanced to ensure continuous cooling, dilution and inhibition, thereby effectively avoiding secondary breakdown of the insulation material due to high temperature carbonization, winding due to arc burns and oil gap due to the accumulation of conductive particles.

[0049] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An oil-immersed transformer with intelligent protection function, comprising an oil tank (2), characterized in that, Also includes: Multiple radiators (3) are fixedly attached to the outer walls of the oil tank (2) on multiple sides; Waste discharge mechanism (1) is fixedly connected to the inner wall of one side of the oil tank (2); The oil supply mechanism (4) is fixedly connected to the inner wall of the other side of the oil tank (2); Multiple windings (5) are fixedly installed on the inner wall of the bottom end of the oil tank (2); Multiple partitions (7) are fixedly connected to the inner wall of the oil tank (2) at equal intervals, and multiple windings (5) pass through multiple partitions (7) at the same time. Each partition (7) is equipped with a temperature sensor (6), and the partition (7) includes multiple through holes one (705) and through holes two (711). Multiple U-shaped oil inlet pipes (8) are fixedly connected between the oil tank (2) and the radiator (3) and are positioned at the top. Each U-shaped oil inlet pipe (8) is equipped with a solenoid valve (10). Multiple U-shaped drain pipes (9) are fixedly connected between the oil tank (2) and the radiator (3) and are positioned at the bottom. Each U-shaped drain pipe (9) is equipped with a solenoid valve (11). The multi-port pipe 2 (16) has multiple output ends that are simultaneously fixedly connected to the inner wall of one side of the oil tank (2) and respectively correspond to the two adjacent partitions (7); Multi-port pipe one (13) is fixedly connected to the input end of multi-port pipe two (16), and a solenoid valve three (12) is installed at the connection. Multiple extension tubes (17) are fixedly connected to multiple input ends of the multi-port pipe (13), and the end of the extension tube (17) extends into the radiator (3). The oil supply mechanism (4) is fixedly connected to one of the input ends of the multi-port pipe (13). Multiple oil pumps (15) and check valves (14) are provided. Each oil pump (15) and check valve (14) is a group and is installed at the connection between the multi-port pipe (13) and the radiator (3).

2. An oil-immersed transformer with intelligent protection function according to claim 1, characterized in that, The waste discharge mechanism (1) includes: The multi-port pipe (101) has multiple input terminals that are simultaneously fixedly connected to the inner wall of one side of the oil tank (2), and the multiple input terminals correspond to the space between two adjacent partitions (7); Solenoid valve four (102) is installed at the junction of multi-port pipe three (101); The return pipe (103) is fixedly connected to the inner wall of the oil tank (2) on the same side and is located directly below the multi-port pipe (101). The return pipe (103) is also equipped with a check valve (104) and an oil pump (105).

3. An oil-immersed transformer with intelligent protection function according to claim 2, characterized in that, The waste discharge mechanism (1) also includes: Waste discharge box (106), multi-port pipe three (101) and return pipe (103) are simultaneously connected to the inner wall of one side of waste discharge box (106); The filter support (108) is fixedly connected to the inner wall of the waste discharge box (106), and the filter (107) is fixedly connected to the inner wall of the filter support (108). The oil drain port (109) is fixedly connected to the inner wall of one side of the waste discharge box (106), and one end of the oil drain port (109) is filled with a sealing plug.

4. An oil-immersed transformer with intelligent protection function according to claim 1, characterized in that, The oil supply mechanism (4) includes: The oil storage tank (403) is fixedly connected to the multi-port pipe (13); The movable sealing ring (406) is fixedly embedded in the inner wall of the top of the oil reservoir (403); The support rod (407) is movably inserted into the movable sealing ring (406), and the top plate (401) is fixedly connected to the top of the support rod (407).

5. An oil-immersed transformer with intelligent protection function according to claim 4, characterized in that, The oil supply mechanism (4) also includes: Multiple springs (402) are simultaneously fixedly connected between the top plate (401) and the top outer wall of the oil tank (403); The pressure plate (405) is fixedly connected to the bottom end of the support rod (407), and a sealing sleeve (404) is fixedly wrapped around its outer periphery. The sealing sleeve (404) is movably fitted inside the oil reservoir (403). A pressure sensor is installed at the bottom end of the pressure plate (405).

6. An oil-immersed transformer with intelligent protection function according to claim 1, characterized in that, Each of the partitions (7) includes: The hollow frame (710) is fixedly attached to the inner walls of the oil tank (2) on multiple sides, and the outer wall of the winding (5) is attached to the inner wall of the hollow frame (710). The inner sliding plate (704) is flexibly attached to the inner wall of the hollow frame (710).

7. An oil-immersed transformer with intelligent protection function according to claim 6, characterized in that, The positions of the multiple perforations 1 (705) and the multiple perforations 2 (711) correspond one-to-one, and when the perforations 1 (705) and the perforations 2 (711) overlap, they are combined into a tapered hole with the diameter decreasing from top to bottom.

8. An oil-immersed transformer with intelligent protection function according to claim 6, characterized in that, Each of the partitions (7) further includes: Support plate 1 (702) is fixedly connected to the top outer wall of the inner sliding plate (704); Triangular abutment block 1 (703) and multiple springs 2 (701) are simultaneously fixedly connected to one side of the outer wall of support plate 1 (702).

9. An oil-immersed transformer with intelligent protection function according to claim 8, characterized in that, Each of the partitions (7) further includes: A through slot (709) is provided through the inner wall of the top of the hollow frame (710), and a support plate (702) is movably connected in the through slot (709); Support plate 2 (708) is fixedly connected to the top outer wall of the hollow frame (710), and the other ends of multiple springs 2 (701) are simultaneously fixedly connected to one side outer wall of support plate 2 (708).

10. An oil-immersed transformer with intelligent protection function according to claim 9, characterized in that, Each of the partitions (7) further includes: An electric actuator (706) is fixedly connected to the top outer wall of the hollow frame (710); Triangular abutment block two (707) is fixedly connected to the output end of electric push rod (706) and is movably fitted with triangular abutment block one (703).

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