Main oil pipe connecting structure for transformer or reactor

Abstract

The present utility model relates to a main oil pipe connecting structure for a transformer or a reactor, comprising an oil tank. A cooler is arranged outside the side surface of the oil tank, an oil storage container is placed on the top surface of the cooler, a main oil pipe is communicated between the oil storage container and the top surface of the oil tank, and a cooling manifold is communicated between the top end of the cooler and the top surface of the oil tank; the main oil pipe comprises a first transverse oil pipe and a second transverse oil pipe, the first transverse oil pipe and the second transverse oil pipe are arranged in parallel, and the first transverse oil pipe is higher than the second transverse oil pipe; the first transverse oil pipe is higher than the cooling manifold, and the cooling manifold is communicated with a vertically-arranged air guide pipe towards the first transverse oil pipe. In a limited space, by improving the structural arrangement of the main oil pipe, the strict requirements for an insulation distance and air guide are met to ensure the safety of a device in operation. The present utility model is especially suitable for the situation in which the space on the transformer is narrow, is easy to implement, has low costs, and achieves good practicability.

Description

A main oil pipe connection structure for transformer or reactor Technical Field

[0001] The utility model relates to the technical field of electric power equipment, in particular to a main oil pipe connection structure for a transformer or a reactor. Background Art

[0002] The bushings of reactors or transformers have strict requirements on insulation distance to ensure safe operation of the equipment, without power or breakdown. The main oil pipe is the oil pipe connected between the reactor or transformer body and the oil conservator.

[0003] In actual projects, the connection between the main oil pipe and the transformer tank is typically placed at the center of the transformer's top surface. However, in some existing reactor or transformer designs, the limited space on the transformer's top surface necessitates the placement of cooler headers and oil pipes above the transformer. Furthermore, this placement is limited by the height constraints of the individual gas headers and coolers, resulting in the existing main oil pipe layout being unable to meet the bushing insulation distance requirements.

[0004] Utility Model Content

[0005] To solve the above problems, the present application provides a rationally structured main oil pipe connection structure for a transformer or reactor, thereby meeting the strict requirements of insulation distance and gas conduction to ensure the safety of equipment operation. It is particularly suitable for situations where the space above the transformer is narrow. It is easy to implement, low cost and practical.

[0006] The technical solutions adopted in this utility model are as follows:

[0007] A main oil pipe connection structure for a transformer or a reactor comprises an oil tank, a cooler is arranged on the outside of the side of the oil tank, an oil storage cabinet is placed on the top of the cooler, a main oil pipe is connected between the oil storage cabinet and the top of the oil tank, and a cooling connecting pipe is connected between the top of the cooler and the top of the oil tank; the main oil pipe comprises a transverse oil pipe 1 and a transverse oil pipe 2, the transverse oil pipe 1 and the transverse oil pipe 2 are arranged parallel to each other, and the transverse oil pipe 1 is arranged higher than the transverse oil pipe 2; the transverse oil pipe 1 is higher than the cooling connecting pipe, and the cooling connecting pipe is connected to a vertically arranged air guide pipe toward the transverse oil pipe 1.

[0008] As a further improvement of the above technical solution:

[0009] A casing is installed on the top surface of the oil tank. The second transverse oil pipe is located at the casing, and the axial direction of the second transverse oil pipe is lower than the top end of the casing.

[0010] The sleeve is installed on the top surface of the oil tank via the lifting seat, the second transverse oil pipe is higher than the lifting seat, and the second transverse oil pipe is connected to the gas pipe of the lifting seat for gas conduction.

[0011] One end of the horizontal oil pipe 2 is downwardly connected to the top surface of the oil tank through the vertical oil pipe 1, and the other end of the horizontal oil pipe 2 is upwardly connected to the end of the horizontal oil pipe 1 through the vertical oil pipe 2.

[0012] The second vertical oil pipe and the second horizontal oil pipe form an integrated L-shaped oil pipe.

[0013] The air guide pipe is arranged at the end of the horizontal oil pipe 1 connected to the vertical oil pipe 2.

[0014] The bottom end of the oil storage cabinet is higher than the top surface of the oil tank.

[0015] The first transverse oil pipe and the second transverse oil pipe both tend to be slightly inclined upwards toward the oil storage tank.

[0016] The top of the cooler is higher than the top surface of the oil tank, and the cooling connecting pipe is arranged between the cooler and the oil tank in a "┒"-shaped structure.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The utility model has a compact and reasonable structure. In a limited space, by setting the main oil pipe into a multi-section bending structure, especially setting the mutually parallel transverse oil pipe 1 and transverse oil pipe 2, not only the air guide pipe setting requirement between the main oil pipe and the cooling connecting pipe is guaranteed, but also the insulation distance requirement can be effectively met, thereby ensuring the safety of the equipment during operation. It is particularly suitable for situations where the space above the transformer is narrow, and is easy to implement, low in cost, and good in practicality.

[0019] The utility model also has the following advantages:

[0020] The air guide pipe between the cooling link pipe and the main oil pipe is connected to the horizontal oil pipe 1, which helps to ensure the insulation distance requirements while ensuring the air guide height requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a schematic structural diagram of the present utility model.

[0022] FIG2 is a schematic diagram showing the connection of the main oil pipe between the oil storage cabinet and the oil tank of the present invention.

[0023] Among them: 1. Oil storage cabinet; 2. Cooling connecting pipe; 3. Horizontal oil pipe 1; 4. Air guide pipe; 5. Vertical oil pipe 2; 6. Horizontal oil pipe 2; 7. Vertical oil pipe 1; 8. Riser; 9. Oil tank. DETAILED DESCRIPTION

[0024] The specific implementation of the present utility model will be described below with reference to the accompanying drawings.

[0025] As shown in Figure 1, a main oil pipe connection structure for a transformer or reactor in this embodiment includes an oil tank 9, a cooler is arranged on the outside of the side of the oil tank 9, an oil storage cabinet 1 is placed on the top of the cooler, a main oil pipe is connected between the oil storage cabinet 1 and the top of the oil tank 9, and a cooling connecting pipe 2 is connected between the top of the cooler and the top of the oil tank 9; the main oil pipe includes a transverse oil pipe 1 3 and a transverse oil pipe 2 6, the transverse oil pipe 1 3 and the transverse oil pipe 2 6 are arranged parallel to each other, and the transverse oil pipe 1 3 is arranged higher than the transverse oil pipe 2 6; the transverse oil pipe 1 3 is higher than the cooling connecting pipe 2, and the cooling connecting pipe 2 is connected to the transverse oil pipe 1 3 with a vertically arranged air guide pipe 4.

[0026] In this embodiment, in a limited space, by setting the main oil pipe as a multi-section bending structure, especially setting parallel transverse oil pipe 1 3 and transverse oil pipe 2 6, not only the setting requirements of the air guide pipe 4 between the main oil pipe and the cooling connecting pipe 2 are guaranteed, but also the insulation distance requirements can be effectively met, ensuring the safety of equipment operation, which is particularly suitable for situations where the space above the transformer is narrow.

[0027] A casing is installed on the top surface of the oil tank 9, and the second transverse oil pipe 6 is located at the casing. The second transverse oil pipe 6 is axially lower than the top of the casing, meeting the insulation distance requirement in height between the casing and the main oil pipe.

[0028] The sleeve is installed on the top surface of the oil tank 9 through the rising seat 8. The horizontal oil pipe 2 6 is higher than the rising seat 8. The horizontal oil pipe 2 6 and the gas pipe of the rising seat 8 are connected for gas conduction, which meets the gas conduction height requirement.

[0029] As shown in Figure 2, one end of the horizontal oil pipe 26 is connected downward to the top surface of the oil tank 9 through the vertical oil pipe 17, and the other end of the horizontal oil pipe 26 is connected upward to the end of the horizontal oil pipe 13 through the vertical oil pipe 25; the vertical oil pipe 25 is located between the oil tank 9 and the cooler.

[0030] In this embodiment, the air guide pipe 4 between the cooling link pipe 2 and the main oil pipe is connected to the horizontal oil pipe 3, which helps to ensure the insulation distance requirement while ensuring the air guide height requirement.

[0031] The vertical oil pipe 2 5 and the horizontal oil pipe 2 6 form an integrated L-shaped oil pipe, which is convenient for installation operation.

[0032] The air guide pipe 4 is arranged at the end where the horizontal oil pipe 1 3 is connected to the vertical oil pipe 2 5.

[0033] The bottom end of the oil conservator 1 is higher than the top surface of the oil tank 9.

[0034] Both the horizontal oil pipe 1 3 and the horizontal oil pipe 2 6 are slightly inclined upward toward the oil conservator 1 .

[0035] The top of the cooler is higher than the top surface of the oil tank 9, and the cooling connecting pipe 2 is arranged between the cooler and the oil tank 9 in a "┒"-shaped structure.

[0036] In this embodiment, a main oil pipe connecting the oil conservator 1 and the oil tank 9 is provided at the upper center of the transformer or reactor body. The reactor adopts a split structure, and the oil conservator 1 is placed on the cooler.

[0037] Since the cooling connecting pipe 2 needs an air duct 4, which is connected to the main oil pipe upward through the air duct 4, the setting of the horizontal oil pipe 1 3 in the horizontal part of the main oil pipe ensures the height H1, thereby ensuring the setting of the air duct 4.

[0038] At the same time, without changing the position of the main oil pipe, the insulation distance requirement of the bushing is guaranteed, that is, the distance H2 from the bushing terminal to the main oil pipe in Figure 1 is guaranteed. The distance H2 requirement is met by the arrangement of the transverse oil pipe 2 6 in the transverse portion of the main oil pipe.

[0039] The height of the elevated seat 8 above the oil tank 9 is H3. The elevated seat 8 needs to be connected to the main oil pipe to set an air duct. The air duct is set between the horizontal oil pipe 2 6 of the horizontal part of the main oil pipe and the elevated seat 8. The minimum height H4 is met between the horizontal oil pipe 2 6 and the top surface of the oil tank 9.

[0040] The utility model ensures the air conduction requirements between the main oil pipe and the cooling connecting pipe, and can effectively meet the insulation distance requirements, thereby ensuring the safety of equipment operation. It is particularly suitable for situations where the space above the transformer is narrow, is easy to implement, has low cost and good practicality.

[0041] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0042] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the scope of protection of the utility model.

Claims

1. A main oil pipe connection structure for a transformer or a reactor, comprising an oil tank (9), characterized in that: A cooler is arranged on the outside of the side of the oil tank (9), an oil storage cabinet (1) is placed on the top of the cooler, a main oil pipe is connected between the oil storage cabinet (1) and the top of the oil tank (9), and a cooling connecting pipe (2) is connected between the top of the cooler and the top of the oil tank (9); the main oil pipe includes a transverse oil pipe 1 (3) and a transverse oil pipe 2 (6), the transverse oil pipe 1 (3) and the transverse oil pipe 2 (6) are arranged parallel to each other, and the transverse oil pipe 1 (3) is arranged higher than the transverse oil pipe 2 (6); the transverse oil pipe 1 (3) is higher than the cooling connecting pipe (2), and the cooling connecting pipe (2) is connected to a vertically arranged air guide pipe (4) toward the transverse oil pipe 1 (3).

2. A main oil pipe connection structure for a transformer or a reactor according to claim 1, characterized in that: A casing is installed on the top surface of the oil tank (9), and the second transverse oil pipe (6) is located at the casing. The axial direction of the second transverse oil pipe (6) is lower than the top of the casing.

3. A main oil pipe connection structure for a transformer or a reactor as claimed in claim 2, characterized in that: The sleeve is installed on the top surface of the oil tank (9) via the lifting seat (8); the second transverse oil pipe (6) is higher than the lifting seat (8); and the second transverse oil pipe (6) is connected to the gas pipe of the lifting seat (8) for gas conduction.

4. A main oil pipe connection structure for a transformer or a reactor according to claim 1, characterized in that: One end of the second transverse oil pipe (6) is connected downward to the top surface of the oil tank (9) via the first vertical oil pipe (7), and the other end of the second transverse oil pipe (6) is connected upward to the end of the first transverse oil pipe (3) via the second vertical oil pipe (5).

5. A main oil pipe connection structure for a transformer or a reactor as claimed in claim 4, characterized in that: The second vertical oil pipe (5) and the second horizontal oil pipe (6) form an integrated L-shaped oil pipe.

6. A main oil pipe connection structure for a transformer or a reactor as claimed in claim 4, characterized in that: The air guide pipe (4) is arranged at the end of the horizontal oil pipe 1 (3) connected to the vertical oil pipe 2 (5).

7. A main oil pipe connection structure for a transformer or a reactor according to claim 1, characterized in that: The bottom end of the oil storage cabinet (1) is higher than the top surface of the oil tank (9).

8. A main oil pipe connection structure for a transformer or a reactor according to claim 1, characterized in that: The transverse oil pipe 1 (3) and the transverse oil pipe 2 (6) both tend to be slightly inclined upwards towards the direction of the oil storage cabinet (1).

9. A main oil pipe connection structure for a transformer or a reactor according to claim 1, characterized in that: The top of the cooler is higher than the top surface of the oil tank (9), and the cooling connecting pipe (2) is arranged between the cooler and the oil tank (9) in a "┒"-shaped structure.

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