Oil-immersed transformer foundation

Abstract

The utility model relates to the technical field of transformer foundations, in particular to an oil-immersed transformer foundation which comprises a base, the base is a steel structure box with the top open, an inner deep groove of the base serves as an oil storage pool, the upper ends of the two opposite inner side walls of the base are fixedly connected with fixing plates respectively, and long-strip-shaped holes are formed in the fixing plates in the length direction. Two parallel supporting cross beams are arranged between the two fixing plates, and the two ends of the supporting cross beams are lapped above the fixing plates and are connected with the fixing plates through bolts; according to the transformer foundation, the gauge of the transformer foundation can be adjusted according to gauge models of different transformers, the transformer foundation is used for placing transformers with different gauges, the cost generated by replacing the transformer and having to replace the transformer foundation can be greatly saved, the capital construction investment of a power grid project is greatly saved, and the transformer foundation has high practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer foundations, in particular to an oil-immersed transformer foundation. Background Art

[0002] The most important equipment in a substation is the transformer. Because different manufacturers have different transformer gauges, the gauge of the corresponding transformer foundation is also different. At present, the transformer foundation of substations is mostly made of reinforced concrete, so the gauge of the transformer foundation is not adjustable.

[0003] However, with the rapid economic development, the regional power grid load has further expanded, and the transformer capacity of many substations cannot meet the local development, and needs to be replaced with a larger capacity transformer. However, since the transformer foundation gauge is fixed at the beginning of construction, if a large capacity transformer is replaced, the foundation needs to be demolished and rebuilt to meet the new transformer gauge requirements. This seriously wastes manpower, material and financial resources, and greatly increases the annual infrastructure cost of the power grid. Utility Model Content

[0004] The utility model aims to solve the above problems, thereby providing an oil-immersed transformer foundation.

[0005] The utility model solves the above problems and adopts the following technical solutions:

[0006] An oil-immersed transformer foundation comprises a base, wherein the base is a steel structure box with an open top, the inner deep groove of the base is used as an oil storage tank, the upper ends of two opposite inner side walls of the base are respectively fixedly connected with fixing plates, the two ends of the fixing plates are respectively fixedly connected with the other two opposite inner side walls, a long hole is opened on the fixing plate along the length direction, two parallel supporting beams are arranged between the two fixing plates, the two ends of the supporting beam are placed above the fixing plate, and are connected to the fixing plate by bolts.

[0007] Compared with the prior art, the utility model adopting the above technical solution has the following outstanding features:

[0008] The utility model has a reasonable design and a simple structure, conforms to the huge transformer replacement project of the power grid substation, can adjust the gauge of the transformer foundation according to different transformer gauge models, and is used to place transformers with different gauges. The utility model can greatly save the cost caused by replacing the transformer and having to replace the transformer foundation, greatly saves the infrastructure investment of the power grid project, and has strong practicality.

[0009] As a preferred embodiment, a further technical solution of the utility model is:

[0010] An oil discharge pipe and a rainwater filter pipe communicating with the interior are arranged on the base and at the bottom ends of two opposite outer side walls. Valves are arranged on the two pipes, and a charging filter is connected to the end of the rainwater filter pipe.

[0011] A lifting ring for lifting is arranged on the outer side wall of the base.

[0012] Shock absorbers are arranged between the two ends of the supporting cross beam and the adjacent fixing plates respectively, and the shock absorbers are respectively connected with the supporting cross beam and the fixing plate by bolts.

[0013] Grid plates are arranged between the supporting cross beams and between the supporting cross beams and the side walls of the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of an embodiment of the utility model;

[0015] Figure 2 It is a schematic diagram of the top view of the structure of an embodiment of the utility model;

[0016] Figure 3 It is a side view structural schematic diagram of an embodiment of the utility model;

[0017] Figure 4 This is a schematic diagram of the installation structure of the shock absorber according to the embodiment of the utility model;

[0018] Figure 5 This is a schematic diagram of the top view of the fixing plate of the embodiment of the utility model;

[0019] Marked in the figure are: base 1, fixing plate 2, supporting beam 3, shock absorber 4, grille plate 5, rainwater filtration pipe 6, oil discharge pipe 7, charging filter 8, lifting ring 9, cushion strip 10, long hole 2-1. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0021] See also Figure 1-Figure 5A foundation for an oil-immersed transformer comprises a base 1, wherein the base 1 is a steel structure box with an open top, and a plurality of pads 10 are arranged at the bottom of the base 1 to prevent the bottom plate of the base 1 from being corroded by long-term contact with the ground. The inner deep groove of the base 1 serves as an oil storage tank to collect waste oil generated during the operation of the transformer, and the upper ends of the two opposite inner side walls of the base 1 are respectively fixedly connected with fixing plates 2, and the two ends of the fixing plate 2 are respectively fixedly connected with the other two opposite inner side walls, and a long hole 2-1 is opened on the fixing plate 2 along the length direction, and two parallel supporting beams 3 are arranged between the two fixing plates 2, and the two ends of the supporting beam 3 are placed above the fixing plate 2 and connected to the fixing plate 2 by bolts, and the bolts connecting the supporting beam 3 and the fixing plate 2 can slide in the long hole 2-1 to adjust the spacing between the two supporting beams 3.

[0022] An oil drain pipe 7 and a rainwater filter pipe 6 communicating with the interior are provided on the base 1 and at the bottom ends of two opposite outer side walls. Valves are provided on both pipes. A rechargeable filter 8 is connected to the end of the rainwater filter pipe 6. The model is: rechargeable filter FILTRELEC F5. Since the transformer waste oil contains harmful substances, direct discharge will cause great harm to the environment and human health. Therefore, the waste oil stored in the oil storage tank can be recovered through the oil drain pipe 7. The rechargeable filter FILTRELEC F5 on the rainwater filter pipe 6 can filter the rainwater in the power transformer oil storage tank.

[0023] A lifting ring 9 for lifting is arranged on the outer side wall of the base 1, so as to facilitate installation and lifting.

[0024] Shock absorbers 4 are arranged between the two ends of the support beam 3 and the adjacent fixing plates 2, and the shock absorbers 4 are bolted to the support beam 3 and the fixing plates 2 respectively, so as to reduce the impact vibration of the transformer during an earthquake.

[0025] Grille plates 5 are provided between the supporting cross beams 3 and between the supporting cross beams 3 and the side walls of the base 1 to prevent foreign matter from falling into the oil storage tank and to prevent the waste oil in the oil storage tank from being burned.

[0026] The utility model has a reasonable design and a simple structure, conforms to the huge transformer replacement project of the power grid substation, can adjust the gauge of the transformer foundation according to different transformer gauge models, and is used to place transformers with different gauges. The utility model can greatly save the cost caused by replacing the transformer and having to replace the transformer foundation, greatly saves the infrastructure investment of the power grid project, and has strong practicality.

[0027] The above description is only a preferred feasible embodiment of the present utility model, and does not limit the scope of rights of the present utility model. All equivalent changes made using the contents of the present utility model specification and its drawings are included in the scope of rights of the present utility model.

Claims

1. An oil-immersed transformer foundation, comprising a base, characterized in that: The base is a steel structure box with an open top. The internal deep groove of the base serves as an oil storage tank. The upper ends of the two opposite inner walls of the base are fixedly connected with fixing plates, and the two ends of the fixing plates are fixedly connected to the other two opposite inner walls. Long holes are opened on the fixing plates along the length direction. Two parallel supporting beams are arranged between the two fixing plates. The two ends of the supporting beams are placed above the fixing plates and connected to the fixing plates by bolts.

2. The oil-immersed transformer foundation according to claim 1, characterized in that: An oil discharge pipe and a rainwater filter pipe communicating with the interior are arranged on the base and at the bottom ends of two opposite outer side walls. Valves are arranged on the two pipes, and a charging filter is connected to the end of the rainwater filter pipe.

3. The oil-immersed transformer foundation according to claim 1, characterized in that: A lifting ring for lifting is arranged on the outer side wall of the base.

4. The oil-immersed transformer foundation according to claim 1, characterized in that: Shock absorbers are arranged between the two ends of the supporting cross beam and the adjacent fixing plates respectively, and the shock absorbers are respectively connected with the supporting cross beam and the fixing plate by bolts.

5. The oil-immersed transformer foundation according to claim 1, characterized in that: Grid plates are arranged between the supporting cross beams and between the supporting cross beams and the side walls of the base.

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