An oil injection structure inside the transformer body for defect simulation

Abstract

The present invention discloses an oil injection structure inside the transformer body for defect simulation, comprising: a transformer main body, the transformer main body including a housing, a coil block and a mounting plate, the two mounting plates being fixedly connected to the upper and lower sides of the coil block, and the coil block being installed inside the housing; an oil inlet assembly, the oil inlet assembly including an oil inlet, an outer ring plate, a partition plate, a movable ring plate and a clamping plate, the outer ring plate being sleeved outside the coil block and fixedly connected to the mounting plate located below, a plurality of the partition plates being fixedly connected between the inner side of the outer ring plate and the coil block, partitioning into a plurality of oil storage spaces, a plurality of the oil inlets being opened below the coil block, the movable ring plate being sleeved on the coil block, a plurality of the clamping plates being fixedly connected to the lower side of the movable ring plate, and two adjacent clamping plates tightly clamping the partition plate in the middle. The present invention improves the service life of the transformer oil, extends the maintenance time and saves labor.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and particularly relates to an internal oil injection structure for a transformer body used for defect simulation. Background Art

[0002] A transformer is a basic power transmission and distribution equipment, which is widely used in industries, agriculture, transportation, urban communities and other fields, and is a device that uses the principle of electromagnetic induction to change the AC voltage. Generally, internal defects of transformers are simulated by means of built-in overheating points, partial discharge points, etc. However, for coil discharge defects, the severity and location of the faults cannot be taken into account at the same time. Therefore, the study of the diffusion rate of characteristic gases of arc discharge type cannot be achieved by traditional simulation methods.

[0003] The oil in a transformer mainly plays a role in heat dissipation and cooling during operation, provides insulation and insulation maintenance for windings, etc. The transformer oil plays an arc extinguishing role at the high-voltage lead and the tap changer contact point, preventing the generation of corona and arc discharge. The transformer oil is widely used as the liquid seal in the hydraulic safety valve.

[0004] When a transformer is being filled with oil, the transformer is mostly partially disassembled, and then the transformer oil is introduced into the interior for use. However, since the oil will also be consumed during use, the transformer needs to be filled with oil regularly, which increases the labor and time costs of transformer maintenance. Summary of the Invention

[0005] The purpose of the present invention is to solve the following disadvantages in the prior art: the transformer is mostly partially disassembled, and then the transformer oil is introduced into the interior for use. However, since the oil will also be consumed during use, the transformer needs to be filled with oil regularly, which increases the labor and time costs of transformer maintenance. Therefore, an internal oil injection structure for a transformer body used for defect simulation is proposed.

[0006] In order to achieve the above purpose, the present invention adopts the following technical scheme:

[0007] An internal oil injection structure for a transformer body used for defect simulation, comprising:

[0008] A transformer main body, the transformer main body includes a housing, a coil block and a mounting plate. The two mounting plates are fixedly connected to the upper and lower sides of the coil block, and the coil block is installed inside the housing;

[0009] The oil inlet assembly, the oil inlet assembly includes an oil inlet, an outer ring plate, a partition plate, a movable ring plate and a clamping plate. The outer ring plate is sleeved outside the coil block and fixedly connected to the mounting plate below. A plurality of the partition plates are fixedly connected between the inner side of the outer ring plate and the coil block, partitioning into a plurality of oil storage spaces. An oil guiding port is opened below the partition plate. A plurality of the oil inlets are opened below the coil block, and there is an oil inlet in each oil storage space. The movable ring plate is sleeved on the coil block and is located above the outer ring plate. A plurality of the clamping plates are fixedly connected to the lower part of the movable ring plate, and two adjacent clamping plates tightly clamp the partition plate in the middle;

[0010] The separation assembly, the separation assembly includes a rotating rod and a rotating block. Rotating ports are symmetrically opened on both sides of the housing. The rotating rod is rotationally limited inside the rotating port. A support port is opened between the movable ring plate and the outer ring plate. The rotating block is fixedly connected to the rotating rod and is located inside the support port. Both the support port and the rotating block are elliptical;

[0011] The oil injection assembly is arranged on the rotating rod and is used for injecting oil from the outside.

[0012] Preferably, the transformer body includes a magnetic plate, a power connection post and a processing module. The processing module is fixedly connected to the bottom of the housing. A plurality of the magnetic plates are vertically fixedly connected to the surface of the housing. A plurality of the power connection posts are fixedly connected to the upper end of the housing and are used for importing and exporting electricity.

[0013] Preferably, the clamping plate is made of rubber material, and the distance between the two clamping plates is less than the thickness of the partition plate. The partition plate has a trapezoidal cross-section.

[0014] Preferably, the oil injection assembly includes an injection head and an oil guiding pipe. An oil guiding channel is opened inside the connecting rod and the rotating block. The injection head is fixedly connected to one end of the connecting rod located outside the housing. The oil guiding pipe is fixedly connected to one end of the rotating block away from the connecting rod and is located inside the oil storage space.

[0015] Preferably, the oil guiding pipe is made of an insulating elastic material and has high flexibility.

[0016] Preferably, the injection head is gyro-shaped and is internally provided with a sealing assembly for sealing the oil guiding channel.

[0017] Preferably, the sealing assembly includes a sealing plug and a connecting rope. The sealing plug is made of an elastic material and is clamped inside the injection head. The connecting rope is fixedly connected to the end of the sealing plug and the surface of the injection head.

[0018] Preferably, the connecting rope and the sealing plug are made of an insulating sealing material.

[0019] Preferably, the injection head is fixedly connected with rotating hand blocks on both sides, and the rotating hand blocks are made of insulating materials.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. During use, when the internal transformer oil is insufficient, by rotating the rotating rod, the rotating block is driven to rotate inside the elliptical support opening. The major axis of the rotating block changes from a horizontal state to a vertical state. The rotating block separates the moving ring plate and the outer ring plate. The moving ring plate will move upward. The moving moving ring plate drives the clamping plate to move upward, so as to expose the oil guiding port on the partition plate, which facilitates the uniform introduction of the imported transformer oil into each different oil storage space. Then, through the oil injection assembly, the oil storage space is injected with oil. After the oil injection is completed, by reversing the rotating rod, the major axis of the rotating block returns to the horizontal state, so that the clamping plate seals the oil guiding port on the partition plate to avoid the movement of the oil. The present invention provides a dedicated oil storage space inside the transformer, so that when the internal transformer oil is insufficient, it can be automatically replenished, improving the service life of the transformer oil, extending the maintenance time, and saving labor;

[0022] 2. Since the temperature and usage requirements of the transformer oil are different at different positions of the transformer, the oil temperatures in different oil storage spaces will be different. In order to ensure the normal use of the oil at each position, it is necessary to partition the oil to ensure that the oil at different positions can maintain the required stable temperature;

[0023] 3. When the transformer is working, continuous discharge will occur inside, which will affect other components. In order to avoid damage to the internal components during use, it is made of insulating material, which can ensure the service life of the oil injection structure and reduce the maintenance of the oil injection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 FIG. 17 is a front structural schematic diagram of an internal oil injection structure of a transformer body for defect simulation proposed by the present invention;

[0025] Figure 2 FIG. 21 is a side structural schematic diagram of an internal oil injection structure of a transformer body for defect simulation proposed by the present invention;

[0026] Figure 3 FIG. 25 is a front structural schematic diagram of a coil block of an internal oil injection structure of a transformer body for defect simulation proposed by the present invention;

[0027] Figure 4 FIG. 29 is a sectional view of a coil block of an internal oil injection structure of a transformer body for defect simulation proposed by the present invention;

[0028] Figure 5 FIG. 33 is a front structural schematic diagram of a moving ring plate of an internal oil injection structure of a transformer body for defect simulation proposed by the present invention;

[0029] Figure 6 This is a front structural schematic diagram of a separation component of an oil injection structure inside the transformer body for defect simulation proposed by the present invention.

[0030] In the figure: 1 is the transformer main body, 11 is the outer shell, 12 is the coil block, 13 is the mounting plate, 14 is the magnetic plate, 15 is the power connection post, 16 is the processing module, 2 is the oil inlet component, 21 is the oil inlet, 22 is the outer ring plate, 23 is the partition plate, 24 is the moving ring plate, 25 is the clamping plate, 3 is the separation component, 31 is the rotating rod, 32 is the rotating block, 4 is the oil injection component, 41 is the injection head, 42 is the oil guiding pipe, 5 is the sealing component, 51 is the sealing plug, 52 is the connecting rope, and 6 is the rotating hand block. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0032] Refer to Figure 1-6 , an oil injection structure inside the transformer body for defect simulation, including:

[0033] The transformer main body 1, the transformer main body 1 includes an outer shell 11, a coil block 12 and a mounting plate 13. Two mounting plates 13 are fixedly connected to the upper and lower sides of the coil block 12, and the coil block 12 is installed inside the outer shell 11;

[0034] The oil inlet component 2, the oil inlet component 2 includes an oil inlet 21, an outer ring plate 22, a partition plate 23, a moving ring plate 24 and a clamping plate 25. The outer ring plate 22 is sleeved outside the coil block 12 and is fixedly connected to the mounting plate 13 located below. A plurality of partition plates 23 are fixedly connected between the inner side of the outer ring plate 22 and the coil block 12, partitioning into a plurality of oil storage spaces. An oil guiding port is opened below the partition plate 23. A plurality of oil inlets 21 are opened below the coil block 12, and there is an oil inlet 21 in each oil storage space. The moving ring plate 24 is sleeved on the coil block 12 and is located above the outer ring plate 22. A plurality of clamping plates 25 are fixedly connected to the lower side of the moving ring plate 24, and two adjacent clamping plates 25 tightly clamp the partition plate 23 in the middle;

[0035] The separation component 3, the separation component 3 includes a rotating rod 31 and a rotating block 32. Rotating ports are symmetrically opened on both sides of the outer shell 11. The rotating rod 31 is rotationally limited inside the rotating port. A support port is opened between the moving ring plate 24 and the outer ring plate 22. The rotating block 32 is fixedly connected to the rotating rod 31 and is located inside the support port. Both the support port and the rotating block 32 are elliptical;

[0036] The oil injection component 4, the oil injection component 4 is arranged on the rotating rod 31 and is used for injecting oil from the outside.

[0037] In the present invention, during use, when the internal transformer oil is insufficient, by rotating the rotating rod 31, the rotating block 32 is driven to rotate inside the elliptical support opening. The major axis of the rotating block 32 changes from the horizontal state to the vertical state. The rotating rotating block 32 separates the moving ring plate 24 and the outer ring plate 22. The moving ring plate 24 moves upward, and the moving moving ring plate 24 drives the clamping plate 25 to move upward, thereby exposing the oil guiding port on the partition plate 23, facilitating the uniform introduction of the imported transformer oil into each different oil storage space. Then, the oil storage space is filled with oil through the oil filling assembly 4. After filling, by reversing the rotating rod 31, the major axis of the rotating block 32 returns to the horizontal state, and the clamping plate 25 seals the oil guiding port on the partition plate 23 to prevent the movement of the oil. The present invention provides a dedicated oil storage space inside the transformer, enabling automatic replenishment when the internal transformer oil is insufficient, improving the service life of the transformer oil, extending the maintenance time, and saving labor.

[0038] In the preferred technical solution of this embodiment, the transformer main body 1 includes a magnetic plate 14, a power connection column 15, and a processing module 16. The processing module 16 is fixedly connected to the bottom of the outer shell 11. A plurality of magnetic plates 14 are vertically and fixedly connected to the surface of the outer shell 11. A plurality of power connection columns 15 are fixedly connected to the upper end of the outer shell 11 for the import and export of electricity. The magnetic plate 14, the power connection column 15, and the processing module 16 are the basic components of the transformer, ensuring the normal operation and use of the transformer.

[0039] The clamping plate 25 is made of rubber material, and the distance between the two clamping plates 25 is less than the thickness of the partition plate 23. The cross-section of the partition plate 23 is trapezoidal. To ensure the sealing of the oil guiding port on the partition plate 23 when not in use and prevent the turbulent flow of the oil, since the temperature and usage requirements of the transformer oil at different positions are different, the oil temperatures in different oil storage spaces are different. To ensure the normal use of the oil at each position, it is necessary to partition the oil to ensure that the oil at different positions can maintain the required stable temperature.

[0040] The oil filling assembly 4 includes an injection head 41 and an oil guiding pipe 42. Oil guiding channels are provided inside the connecting rod and the rotating block 32. The injection head 41 is fixedly connected to one end of the connecting rod located outside the outer shell 11, and the oil guiding pipe 42 is fixedly connected to the end of the rotating block 32 away from the connecting rod and is located inside the oil storage space.

[0041] The oil guiding pipe 42 is made of an insulating elastic material and has high flexibility, so that rotating the rotating block 32 will not affect the position of the oil guiding pipe 42, ensuring that the oil outlet end of the oil guiding pipe 42 is always inside the oil storage space.

[0042] The header 41 is gyro-shaped and is internally provided with a sealing component 5 for sealing the oil guiding channel. The gyro-shaped header 41 facilitates the introduction of oil, improving the introduction of transformer oil.

[0043] The sealing component 5 includes a sealing plug 51 and a connecting rope 52. The sealing plug 51 is made of an elastic material and is clamped inside the header 41. The connecting rope 52 is fixedly connected to the end of the sealing plug 51 and the surface of the header 41. When not in use, the header 41 is sealed by the sealing plug 51 to avoid the volatilization of oil, ensuring the internal seal and protecting the internal coil block 12.

[0044] The connecting rope 52 and the sealing plug 51 are made of an insulating sealing material. Since discharge occurs inside the outer shell 11, in order to avoid damage to the connecting rope 52 and the sealing plug 51 during use, they are made of an insulating material.

[0045] Two transfer blocks 6 are fixedly connected to both sides of the header 41. The transfer blocks 6 are made of an insulating material. When the transformer is working, continuous discharge occurs inside, which may affect other components.

[0046] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered within the protection scope of the present invention.

Claims

1. An internal oil injection structure for the transformer body used for defect simulation, characterized in that, include: A transformer body (1), the transformer body (1) comprising a housing (11), a coil block (12) and a mounting plate (13), the two mounting plates (13) being fixedly connected to upper and lower sides of the coil block (12), and the coil block (12) being mounted inside the housing (11); An oil inlet assembly (2), the oil inlet assembly (2) comprising an oil inlet (21), an outer ring plate (22), a partition plate (23), a movable ring plate (24) and a clamping plate (25), the outer ring plate (22) being sleeved on the outside of the coil assembly (12) and fixedly connected to a mounting plate (13) located below, a plurality of partition plates (23) being fixedly connected between the inner side of the outer ring plate (22) and the coil assembly (12) to separate into a plurality of oil storage spaces, an oil guide port being provided below the partition plate (23), a plurality of oil inlets (21) being provided below the coil assembly (12), and each oil storage space having an An oil inlet (21), the movable ring plate (24) is sleeved on the coil assembly block (12) and is located above the outer ring plate (22), a plurality of clamping plates (25) are fixedly connected below the movable ring plate (24), and two adjacent clamping plates (25) tightly clamp the partition (23) in the middle; the clamping plates (25) are made of rubber material, and the spacing between the two clamping plates (25) is less than the thickness of the partition (23), and the partition (23) has a trapezoidal cross section; when not in use, the oil guide port on the partition (23) is sealed to isolate the oil and ensure that the oil at different positions is stable at a temperature required for use; A separation component (3), the separation component (3) comprising a rotating rod (31) and a rotating block (32), the housing (11) having rotating openings symmetrically formed on both sides, the rotating rod (31) being limitedly rotated inside the rotating opening, a supporting opening being formed between the movable ring plate (24) and the outer ring plate (22), the rotating block (32) being fixedly connected to the rotating rod (31) and being located inside the supporting opening, the supporting opening and the rotating block (32) both being elliptical; an oil injection component (4), the oil injection component (4) being arranged on the rotating rod (31) and being used for oil injection from the outside.

2. The internal oil injection structure for the transformer body used for defect simulation according to claim 1, characterized in that, The transformer body (1) comprises a magnetic plate (14), a power connection post (15) and a processing module (16); the processing module (16) is fixedly connected to the bottom of the housing (11); a plurality of the magnetic plates (14) are vertically fixedly connected to the surface of the housing (11); and a plurality of the power connection posts (15) are fixedly connected to the upper end of the housing (11) for importing and exporting electric power.

3. The internal oil injection structure for the transformer body used for defect simulation according to claim 1, characterized in that, The oil injection assembly (4) comprises an injection head (41) and an oil guide pipe (42); an oil guide passage is provided inside the connecting rod and the rotating block (32); the injection head (41) is fixedly connected to an end of the connecting rod located outside the housing (11); the oil guide pipe (42) is fixedly connected to an end of the rotating block (32) away from the connecting rod and is located inside the oil storage space.

4. The internal oil injection structure for the transformer body used for defect simulation according to claim 3, characterized in that, The oil guide pipe (42) is made of an insulating elastic material and has high flexibility.

5. The internal oil injection structure for the transformer body used for defect simulation according to claim 3, characterized in that, The injection head (41) is gyro-shaped and is provided with a sealing assembly (5) inside for sealing the oil guide channel.

6. The internal oil injection structure for the transformer body used for defect simulation according to claim 5, characterized in that, The sealing assembly (5) includes a sealing plug (51) and a connecting rope (52). The sealing plug (51) is made of an elastic material and is clamped inside the injection head (41). The connecting rope (52) is fixedly connected to the end of the sealing plug (51) and the surface of the injection head (41).

7. The internal oil injection structure for the transformer body used for defect simulation according to claim 6, characterized in that, The connecting rope (52) and the sealing plug (51) are made of an insulating sealing material.

8. The internal oil injection structure for the transformer body used for defect simulation according to claim 3, characterized in that, Two sides of the injection head (41) are fixedly connected with rotating hand blocks (6), and the rotating hand blocks (6) are made of an insulating material.

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