Mobile metering device for transformer oil

Abstract

The invention discloses a mobile transformer oil metering device, which relates to the technical field of metering devices and comprises a mobile cabinet, two pairs of mobile wheels are rotatably arranged on the lower end face of the mobile cabinet, a middle bearing plate is fixed on the inner wall of the mobile cabinet, and a mass flow meter is arranged on the upper end face of the middle bearing plate. A first mounting assembly is arranged between the middle bearing plate and the mass flow meter, connecting pipes are arranged at the two ends of the mass flow meter in a communicating mode, the end, away from the mass flow meter, of each connecting pipe penetrates through the movable cabinet, a second mounting assembly is arranged between each connecting pipe and the movable cabinet, and a manual valve is arranged on each connecting pipe. Handles are fixed to the two sides of the movable cabinet, and an electrical assembly is arranged on the movable cabinet. When the mass flow meter is used, the mass flow meter is connected to the transformer in series through the two connecting pipes, when oil liquid moves and passes through the mass flow meter, the passing oil quantity can be directly displayed through the mass flow meter, use is convenient, and metering is accurate.

Description

Technical Field

[0001] The invention relates to the technical field of metering devices, and in particular to a mobile transformer oil metering device. Background Art

[0002] Transformer oil, also known as insulating oil or transformer insulating oil, is a distillation product of petroleum. It is mainly used for insulation, cooling and maintenance of transformers and other electrical equipment to ensure the normal operation and safety of the power system. Transformer oil filling refers to the process of injecting insulating oil (transformer oil) into the transformer oil tank. Its main purpose is to ensure that the oil level inside the transformer is sufficient to meet the design requirements, while providing electrical insulation and cooling functions. Transformer oil return is usually carried out when the transformer is overhauled, oil replaced or other maintenance work is performed. Its main purpose is to extract the oil inside the transformer and process or replace it.

[0003] With the rapid development of the power industry, the demand for transformer oil has increased significantly. Whether it is filling or returning oil to the transformer, it is necessary to count the amount of oil processed each time. When filling or returning oil to the existing transformer, the actual amount of oil filled is only determined by the volume flow meter of the oil filter or the liquid level change of the oil tank. This method requires measurement conversion and has errors. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art:

[0005] When the existing transformer is filling or returning oil, the actual amount of oil filling is determined only by the volume flow meter of the oil filter or the change in the liquid level of the oil tank. This method requires measurement conversion and has errors.

[0006] A mobile transformer oil metering device is proposed.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A mobile transformer oil metering device comprises a mobile cabinet, wherein the lower end surface of the mobile cabinet is rotatably provided with two pairs of mobile wheels, an intermediate receiving plate is fixed on the inner wall of the mobile cabinet, a mass flow meter is provided on the upper end surface of the intermediate receiving plate, a mounting component 1 is provided between the intermediate receiving plate and the mass flow meter, both ends of the mass flow meter are connected with connecting pipes, one end of each connecting pipe away from the mass flow meter passes through the mobile cabinet, a mounting component 2 is provided between each connecting pipe and the mobile cabinet, a manual valve is installed on each connecting pipe, handles are fixed on both sides of the mobile cabinet, and an electrical component is provided on the mobile cabinet.

[0009] As a further technical solution of the present invention, the mass flowmeter includes a main body and two connecting flanges 1, each connecting pipe is fixed with a connecting flange 2 at one end close to the mass flowmeter, each connecting flange 2 is docked and installed with the corresponding connecting flange 1, and each connecting pipe is fixed with a connecting flange 3 at one end away from the mass flowmeter.

[0010] As a further technical solution of the present invention, each of the second installation components includes a side through groove opened on the side wall of the mobile cabinet, and side connecting plates are fixed on both sides of the mobile cabinet. The side connecting plates are larger than the size of the side through groove, and each connecting pipe is fixed and passes through the side connecting plate.

[0011] As a further technical solution of the present invention, two support frames used in conjunction with corresponding connecting pipes are symmetrically fixed to the upper end surface of the intermediate receiving plate.

[0012] As a further technical solution of the present invention, the mounting assembly 1 includes two mounting seats, each mounting seat includes a base portion and a lower pipe clamp fixing portion, the base portion is fixed to the upper end surface of the middle supporting plate, an upper pipe clamp fixing portion is arranged above each lower pipe clamp fixing portion, one end of each lower pipe clamp fixing portion is hinged to one end of the corresponding upper pipe clamp fixing portion, and a locking unit is arranged between the other end of each lower pipe clamp fixing portion and the other end of the corresponding upper pipe clamp fixing portion.

[0013] As a further technical solution of the present invention, each of the locking units includes a rotating column that rotates through one end of the lower tube clamp fixing part, a rotation limit block is fixed to the upper end of the rotating column, a rectangular through groove used to cooperate with the rotation limit block is opened at one end of the upper tube clamp fixing part, a connecting disk is fixed to the lower end of the rotating column, a torsion block is fixed to the lower end of the connecting disk, a spring is movably arranged between the lower tube clamp fixing part and the connecting disk, the spring is movably sleeved on the outer wall of the rotating column, and a limiting member is arranged between the lower tube clamp fixing part and the connecting disk.

[0014] As a further technical solution of the present invention, each of the limiting members comprises a connecting ring fixed on the outer side wall of the connecting plate, and two limiting plates are symmetrically fixed to the lower end surface of one end of each lower pipe clamp fixing portion.

[0015] As a further technical solution of the present invention, an upper supporting plate is fixed on the inner wall of the mobile cabinet, an upper partition is fixed on the upper end surface of the upper supporting plate, the electrical components include electrical components fixed on the upper end surface of the upper supporting plate, two cabinet doors are symmetrically arranged on one side of the mobile cabinet, a display screen is fixed through one of the cabinet doors, and two lithium batteries are symmetrically fixed on the inner bottom of the mobile cabinet.

[0016] As a further technical solution of the present invention, two vertical partitions are symmetrically fixed to the inner bottom of the mobile cabinet, each vertical partition is in contact with the side wall of the corresponding lithium battery, a horizontal partition is fixed between the two vertical partitions, and two import and export conversion heads are placed in the middle position of the inner bottom of the mobile cabinet.

[0017] As a further technical solution of the present invention, a plurality of through holes are formed through the side walls of each of the vertical partitions and the horizontal partitions.

[0018] Beneficial effects of the present invention:

[0019] 1. When filling or returning oil to the transformer, move the mobile cabinet to a position close to the transformer (close to the oil filling port or oil return port), and connect the mass flow meter in series to the transformer through two connecting pipes. When the oil moves through the mass flow meter, the amount of oil passing through can be directly displayed by the mass flow meter. It is easy to use and accurate in measurement.

[0020] 2. After flipping the upper tube clamp fixing part upward to open it, place the mass flowmeter on the two lower tube clamp fixing parts, and then flip the upper tube clamp fixing part downward to close it. At this time, the end of the upper tube clamp fixing part is in contact with the end of the lower tube clamp fixing part. At this time, pinch the twisting block with your hand and then push the rotating column and the rotation limit block upward through the connecting plate until the rotation limit block passes through the rectangular through groove. During this process, the spring is squeezed and contracted. During this process, the connecting ring moves upward with the connecting plate and contacts the lower end surface of the limit plate. Then, the twisting block is rotated 90°, thereby driving the connecting plate, the rotating column and the rotation limit block to rotate 90°, so that the rotation limit block fits the upper end surface of the end of the upper tube clamp fixing part and rotates 90°, thereby locking the ends of the upper tube clamp fixing part and the lower tube clamp fixing part together, which is easy to use.

[0021] 3. The two vertical partitions are used to limit the lithium battery to prevent it from being displaced while moving with the mobile cabinet, and to prevent the import and export conversion heads from colliding with the lithium battery. The horizontal partitions are used to support the two vertical partitions on the one hand, and to limit the import and export conversion heads on the other hand, to facilitate subsequent removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0023] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0024] Figure 3 It is a schematic diagram of the internal structure of the mobile cabinet in the present invention;

[0025] Figure 4It is a structural schematic diagram of the mass flow meter in the present invention;

[0026] Figure 5 Schematic diagram of the connection between the lower pipe clamp fixing part and the upper pipe clamp fixing part in the present invention Figure 1 ;

[0027] Figure 6 Schematic diagram of the connection between the lower pipe clamp fixing part and the upper pipe clamp fixing part in the present invention Figure 2 ;

[0028] Figure 7 It is a schematic diagram of the connection between the rotating column and the connecting disk in the present invention;

[0029] Figure 8 It is a schematic diagram of the connection between the vertical partition and the horizontal partition in the present invention;

[0030] Fig. 9 It is a schematic diagram of the structure of the inlet and outlet conversion head in the present invention.

[0031] In the figure: 1. mobile cabinet; 2. mobile wheel; 3. middle receiving plate; 4. mass flow meter; 5. connecting pipe; 6. manual valve; 7. handle; 8. main body; 9. connecting flange one; 10. connecting flange two; 11. connecting flange three; 12. side connecting plate; 13. support frame; 14. mounting seat; 15. base; 16. lower pipe clamp fixing part; 17. upper pipe clamp fixing part; 18. rotating column; 19. rotating limit block; 20. rectangular through groove; 21. connecting plate; 22. torsion block; 23. spring; 24. connecting ring; 25. limit plate; 26. upper receiving plate; 27. upper partition; 28. cabinet door; 29. ​​display screen; 30. lithium battery; 31. vertical partition; 32. horizontal partition; 33. inlet and outlet conversion head; 34. through hole. DETAILED DESCRIPTION

[0032] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0033] Reference Figure 1-Figure 9A mobile transformer oil metering device comprises a mobile cabinet 1, the lower end surface of the mobile cabinet 1 is rotatably provided with two pairs of mobile wheels 2, one pair of the mobile wheels 2 is a universal wheel, and the other pair of mobile wheels 2 is a fixed direction wheel, an intermediate receiving plate 3 is fixed on the inner wall of the mobile cabinet 1, a mass flow meter 4 is provided on the upper end surface of the intermediate receiving plate 3, an installation component 1 is provided between the intermediate receiving plate 3 and the mass flow meter 4, both ends of the mass flow meter 4 are connected with connecting pipes 5, one end of each connecting pipe 5 away from the mass flow meter 4 passes through the mobile cabinet 1, an installation component 2 is provided between each connecting pipe 5 and the mobile cabinet 1, a manual valve 6 is installed on each connecting pipe 5, handles 7 are fixed on both sides of the mobile cabinet 1, and an electrical component is provided on the mobile cabinet 1.

[0034] Reference Figure 1-Figure 4 When filling or returning oil to the transformer, the mobile cabinet 1 is moved to a position close to the transformer (close to the oil filling port or the oil return port), and the mass flow meter 4 is connected in series to the transformer through two connecting pipes 5. When the oil moves through the mass flow meter 4, the amount of oil passing through can be directly displayed by the mass flow meter 4, which is easy to use and accurate in measurement.

[0035] Reference Figure 3 The mass flow meter 4 includes a main body 8 and two connecting flanges 1 9. A connecting flange 2 10 is fixed to one end of each connecting pipe 5 close to the mass flow meter 4. Each connecting flange 2 10 is docked and installed with the corresponding connecting flange 1 9 and installed by bolts and nuts. The specific installation method is conventional technical means. A connecting flange 3 11 is fixed to one end of each connecting pipe 5 away from the mass flow meter 4.

[0036] Reference Figure 3 By cooperating with the connection flange 1 9 and the connection flange 2 10, the mass flow meter 4 can be connected to the connection pipe 5, and by cooperating with the connection flange 3 11, it can be connected in series with the transformer to measure the oil.

[0037] Reference Figure 2 and Figure 3 Each installation component 2 includes a side through groove opened on the side wall of the mobile cabinet 1, and side connecting plates 12 are fixed on both sides of the mobile cabinet 1. The side connecting plates 12 are larger than the size of the side through groove, and each connecting pipe 5 is fixedly passed through the side connecting plate 12.

[0038] Two support frames 13 that are used in conjunction with the corresponding connecting pipes 5 are symmetrically fixed to the upper end surface of the middle receiving plate 3 .

[0039] The side connecting plate 12 and the supporting frame 13 cooperate to support the corresponding connecting pipe 5 .

[0040] Reference Figure 3The mounting assembly 1 includes two mounting seats 14, each mounting seat 14 includes a base portion 15 and a lower pipe clamp fixing portion 16, the base portion 15 is fixed to the upper end surface of the middle receiving plate 3, an upper pipe clamp fixing portion 17 is arranged above each lower pipe clamp fixing portion 16, one end of each lower pipe clamp fixing portion 16 is hinged to one end of the corresponding upper pipe clamp fixing portion 17, and a locking unit is arranged between the other end of each lower pipe clamp fixing portion 16 and the other end of the corresponding upper pipe clamp fixing portion 17.

[0041] When installing the mass flow meter 4 into the mobile cabinet 1, first flip the upper tube clamp fixing part 17 upward to open it, and then place the mass flow meter 4 on the two lower tube clamp fixing parts 16. At this time, the two lower tube clamp fixing parts 16 support the mass flow meter 4, and then flip the upper tube clamp fixing part 17 downward to close it, and then fix the ends of the upper tube clamp fixing part 17 and the lower tube clamp fixing part 16 together through the locking unit, so that the upper tube clamp fixing part 17 and the lower tube clamp fixing part 16 can clamp and fix the mass flow meter 4.

[0042] Reference Figure 3 , Figure 5 , Figure 6 and Figure 7 Each locking unit includes a rotating column 18 that rotates and passes through one end of the lower pipe clamp fixing part 16, a rotation limit block 19 is fixed to the upper end of the rotating column 18, and a rectangular through groove 20 used to cooperate with the rotation limit block 19 is opened at one end of the upper pipe clamp fixing part 17. A connecting disk 21 is fixed to the lower end of the rotating column 18, and a torsion block 22 is fixed to the lower end of the connecting disk 21. A spring 23 is movably arranged between the lower pipe clamp fixing part 16 and the connecting disk 21. The spring 23 is movably sleeved on the outer wall of the rotating column 18, and a limiting member is arranged between the lower pipe clamp fixing part 16 and the connecting disk 21.

[0043] Reference Figure 7 Each limiting member includes a connecting ring 24 fixed on the outer wall of the connecting plate 21, and two limiting plates 25 are symmetrically fixed to the lower end surface of one end of each lower pipe clamp fixing portion 16.

[0044] Reference Figure 3 , Figure 5 , Figure 6 and Figure 7After the upper tube clamp fixing part 17 is flipped upward and opened, the mass flow meter 4 is placed on the two lower tube clamp fixing parts 16, and then the upper tube clamp fixing part 17 is flipped downward and closed. At this time, the end of the upper tube clamp fixing part 17 contacts the end of the lower tube clamp fixing part 16. At this time, the twisting block 22 is pinched by hand and then the rotating column 18 and the rotation limit block 19 are pushed upward through the connecting plate 21 until the rotation limit block 19 passes through the rectangular through groove 20. In this process, the spring 23 is squeezed and contracted. In this process, the connecting ring 24 moves upward with the connecting plate 21 and contacts the lower end surface of the limit plate 25. Then the twisting block 22 is rotated 90°, thereby driving the connecting plate 21, the rotating column 18 and the rotation limit block 19 to rotate 90°, so that the rotation limit block 19 is fitted to the upper end surface of the end of the upper tube clamp fixing part 17 and rotated 90°, thereby locking the upper tube clamp fixing part 17 and the end of the lower tube clamp fixing part 16 together, which is convenient to use.

[0045] Reference Figure 3 An upper receiving plate 26 is fixed on the inner wall of the mobile cabinet 1, and an upper partition plate 27 is fixed on the upper end surface of the upper receiving plate 26. The electrical components include electrical components fixed to the upper end surface of the upper receiving plate 26. Two cabinet doors 28 are symmetrically rotated on one side of the mobile cabinet 1, and a display screen 29 is fixedly provided on one of the cabinet doors 28. A latch lock is provided between the two cabinet doors 28, and two lithium batteries 30 are symmetrically fixed on the inner bottom of the mobile cabinet 1.

[0046] Real-time measurement of oil volume and quality, cumulative record of flow and quality in the system, record information in the system in Excel format, and upload to the server specified location at the same time, the detected data is collected by PLC and transmitted to the industrial computer, and KingView software is installed on the industrial computer to visualize, query, save and other operations. Record data step by step according to time intervals, and save the recorded data at the end of the entire test. Single-item test data can be selected, and the file format is stored in Excel format in the industrial computer hard disk.

[0047] Reference Figure 3 , Figure 8 and Fig. 9 Two vertical partitions 31 are symmetrically fixed to the inner bottom of the mobile cabinet 1. Each vertical partition 31 contacts the side wall of the corresponding lithium battery 30. A horizontal partition 32 is fixed between the two vertical partitions 31. Two inlet and outlet conversion heads 33 are placed in the middle position of the inner bottom of the mobile cabinet 1. The applicability is increased by setting the inlet and outlet conversion heads 33.

[0048] Reference Figure 8 A plurality of through holes 34 are formed on the side walls of each vertical partition 31 and each horizontal partition 32 , and a heat dissipation groove is formed on the side walls of the mobile cabinet 1 .

[0049] Reference Figure 3 , Figure 8 and Fig. 9 The two vertical partitions 31 are used to limit the lithium battery 30 to prevent the lithium battery 30 from being displaced while following the movement of the mobile cabinet 1, and to prevent the import and export conversion head 33 from colliding with the lithium battery 30. The horizontal partitions 32 are used to support the two vertical partitions 31 on the one hand, and to limit the import and export conversion head 33 on the other hand, so as to facilitate subsequent taking.

[0050] When the present invention is used, refer to Figure 3 , Figure 5 , Figure 6 and Figure 7 When the mass flow meter 4 is connected to the mobile cabinet 1, the upper pipe clamp fixing part 17 is flipped upward to open, and the mass flow meter 4 is placed on the two lower pipe clamp fixing parts 16, and then the upper pipe clamp fixing part 17 is flipped downward to close. At this time, the end of the upper pipe clamp fixing part 17 contacts the end of the lower pipe clamp fixing part 16. At this time, the twisting block 22 is pinched by hand and the rotating column 18 and the rotating limit block 19 are pushed upward through the connecting plate 21 until the rotating limit block 19 passes through the rectangular through slot 20. During this process, the spring 23 is squeezed and contracted. During this process, the connecting ring 24 moves upward with the connecting disk 21, contacts the lower end surface of the limiting plate 25, and then rotates the twisting block 22 90°, thereby driving the connecting disk 21, the rotating column 18 and the rotating limiting block 19 to rotate 90°, so that the rotating limiting block 19 is in contact with the upper end surface of the end of the upper pipe clamp fixing part 17 and rotates 90°, thereby locking the upper pipe clamp fixing part 17 and the end of the lower pipe clamp fixing part 16 together, which is convenient to use;

[0051] Reference Figure 3 , Figure 8 and Fig. 9 The two vertical partitions 31 are provided to limit the lithium battery 30, so as to prevent the lithium battery 30 from being displaced while following the movement of the mobile cabinet 1, and to prevent the import and export conversion head 33 from colliding with the lithium battery 30. The transverse partitions 32 are provided to support the two vertical partitions 31 on the one hand, and to limit the import and export conversion head 33 on the other hand, so as to facilitate subsequent taking;

[0052] Reference Figure 1-Figure 4 When filling or returning oil to the transformer, the mobile cabinet 1 is moved to a position close to the transformer (close to the oil filling port or the oil return port), and the mass flow meter 4 is connected in series to the transformer through two connecting pipes 5. When the oil moves through the mass flow meter 4, the amount of oil passing through can be directly displayed by the mass flow meter 4, which is easy to use and accurate in measurement.

[0053] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A mobile transformer oil metering device, comprising a mobile cabinet (1), characterized in that: The lower end surface of the mobile cabinet (1) is rotatably provided with two pairs of moving wheels (2); an intermediate receiving plate (3) is fixed on the inner wall of the mobile cabinet (1); a mass flow meter (4) is provided on the upper end surface of the intermediate receiving plate (3); a first mounting component is provided between the intermediate receiving plate (3) and the mass flow meter (4); connecting pipes (5) are provided at both ends of the mass flow meter (4); one end of each connecting pipe (5) away from the mass flow meter (4) passes through the mobile cabinet (1); a second mounting component is provided between each connecting pipe (5) and the mobile cabinet (1); a manual valve (6) is installed on each connecting pipe (5); handles (7) are fixed on both sides of the mobile cabinet (1); and an electrical component is provided on the mobile cabinet (1).

2. A mobile transformer oil metering device according to claim 1, characterized in that: The mass flow meter (4) comprises a main body (8) and two connecting flanges 1 (9); a connecting flange 2 (10) is fixed to one end of each connecting pipe (5) close to the mass flow meter (4); each connecting flange 2 (10) is butt-jointed with the corresponding connecting flange 1 (9); and a connecting flange 3 (11) is fixed to one end of each connecting pipe (5) away from the mass flow meter (4).

3. A mobile transformer oil metering device according to claim 1, characterized in that: Each of the second installation components comprises a side through slot opened on the side wall of the mobile cabinet (1), side connecting plates (12) are fixed on both sides of the mobile cabinet (1), the side connecting plates (12) are larger than the size of the side through slot, and each connecting pipe (5) is fixedly passed through the side connecting plate (12).

4. A mobile transformer oil metering device according to claim 1, characterized in that: Two support frames (13) used in conjunction with corresponding connecting pipes (5) are symmetrically fixed to the upper end surface of the middle receiving plate (3).

5. A mobile transformer oil metering device according to claim 1, characterized in that: The mounting assembly 1 comprises two mounting seats (14), each mounting seat (14) comprises a base portion (15) and a lower pipe clamp fixing portion (16), the base portion (15) is fixed to the upper end surface of the middle receiving plate (3), an upper pipe clamp fixing portion (17) is arranged above each lower pipe clamp fixing portion (16), one end of each lower pipe clamp fixing portion (16) is hinged to one end of the corresponding upper pipe clamp fixing portion (17), and a locking unit is arranged between the other end of each lower pipe clamp fixing portion (16) and the other end of the corresponding upper pipe clamp fixing portion (17).

6. A mobile transformer oil metering device according to claim 5, characterized in that: Each of the locking units comprises a rotating column (18) which rotates and passes through one end of the lower pipe clamp fixing part (16); a rotation limit block (19) is fixed to the upper end of the rotating column (18); a rectangular through slot (20) used in conjunction with the rotation limit block (19) is provided at one end of the upper pipe clamp fixing part (17); a connecting disk (21) is fixed to the lower end of the rotating column (18); a twisting block (22) is fixed to the lower end of the connecting disk (21); a spring (23) is movably arranged between the lower pipe clamp fixing part (16) and the connecting disk (21); the spring (23) is movably sleeved on the outer wall of the rotating column (18); and a limiting member is arranged between the lower pipe clamp fixing part (16) and the connecting disk (21).

7. A mobile transformer oil metering device according to claim 6, characterized in that: Each of the limiting members comprises a connecting ring (24) fixed on the outer side wall of the connecting plate (21), and two limiting plates (25) are symmetrically fixed on the lower end surface of one end of each lower pipe clamp fixing portion (16).

8. A mobile transformer oil metering device according to claim 1, characterized in that: An upper receiving plate (26) is fixed on the inner wall of the mobile cabinet (1), an upper partition plate (27) is fixed on the upper end surface of the upper receiving plate (26), the electrical assembly comprises electrical components fixed on the upper end surface of the upper receiving plate (26), two cabinet doors (28) are symmetrically arranged on one side of the mobile cabinet (1), a display screen (29) is fixedly arranged through one of the cabinet doors (28), and two lithium batteries (30) are symmetrically fixed on the inner bottom of the mobile cabinet (1).

9. A mobile transformer oil metering device according to claim 8, characterized in that: Two vertical partitions (31) are symmetrically fixed to the inner bottom of the mobile cabinet (1), each vertical partition (31) is in contact with the side wall of the corresponding lithium battery (30), a horizontal partition (32) is fixed between the two vertical partitions (31), and two inlet and outlet conversion heads (33) are placed in the middle of the inner bottom of the mobile cabinet (1).

10. A mobile transformer oil metering device according to claim 9, characterized in that: A plurality of through holes (34) are provided through the side walls of each of the vertical partitions (31) and the transverse partitions (32).

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