Corrugated oil tank structure

Abstract

The corrugated oil tank structure comprises a square tank body, the side wall of the tank body is provided with a bent part which is concave inwards and used for reducing the internal volume of the tank body, the side wall, where the bent part is located, of the tank body is bent in a right-angle mode to form a cuboid-shaped groove, and a corrugated sheet is arranged in the groove. According to the oil tank structure arranged in the mode, waste of the volume in the tank can be effectively avoided, the strength of the tank body is ensured, meanwhile, the internal space of the oil tank is saved, and the cost of a transformer is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of transformers, and in particular to a corrugated oil tank structure. Background Art

[0002] Usually the corrugated oil tank is square or rectangular in structure, with corrugated sheets on all four sides, which has good heat dissipation. In addition to the transformer body, the oil tank will also be equipped with a large number of high and low voltage current transformers under specific requirements. Therefore, the conventional square structure is maintained to increase the internal size of the oil tank to meet the sufficient installation space for the current transformer.

[0003] However, when we increase the empty space inside the oil tank, after the current transformer is installed, there will be a certain amount of empty space inside the oil tank, which will increase the total amount of oil in the tank, thus failing to achieve the effect of high efficiency and energy saving.

[0004] Therefore, in view of the above technical problems, how to reduce the empty space in the fuel tank is a technical problem that technical personnel in this field need to solve. Utility Model Content

[0005] The purpose of the present application is to provide a corrugated oil tank structure, which can reduce the volume of the corrugated oil tank, effectively improve the utilization rate of the internal space of the oil tank, and reduce the total oil volume and cost of the transformer oil.

[0006] To achieve the above-mentioned purpose, the present application provides a corrugated oil tank structure, including a square box body, the side wall of the box body is provided with a bending portion which is recessed inward and is used to reduce the internal volume of the box body, the side wall of the box body where the bending portion is located is bent at a right angle to form a rectangular groove, and a corrugated sheet is arranged in the groove.

[0007] Preferably, the four side walls of the box body are all provided with the corrugated sheets, and the extended length of the corrugated sheets in the groove is smaller than the extended length of the corrugated sheets on the side walls of the box body.

[0008] Preferably, the corrugated sheet on the outer periphery of the box body forms a height difference at the groove, and a secondary terminal box is installed at the height difference, and the secondary terminal box is fixedly connected to the box body.

[0009] Preferably, the corrugated sheet in the groove is fixed to the box body by welding round steel.

[0010] Preferably, a transformer body and a plurality of current transformers are arranged in the box, and the current transformers are located at locations other than the bending portions.

[0011] Preferably, a high-voltage bushing and a low-voltage bushing connected to the transformer body are arranged on the end cover of the box body, and a tap switch for adjusting the output voltage of the low-voltage bushing is arranged on the box cover.

[0012] Preferably, a base channel steel is provided at the bottom of the box body, and wheels for the box body to move are provided on the base channel steel.

[0013] Compared with the above-mentioned background technology, the present application, based on the traditional square box structure, bends the side wall of the box inward according to the actual installation requirements, thereby reducing the internal volume of the box. It should be noted that the inwardly recessed bending portion does not affect the setting of the transformer body and the current transformer; and the side wall of the box where the bending portion is located is bent at a right angle, which is convenient for directly bending and welding the bending portion when welding the box, thereby improving the welding efficiency; at the same time, the groove formed in the bending portion is in the shape of a rectangular parallelepiped, which facilitates the installation of the corrugated sheet. The oil tank structure arranged in the above manner can effectively avoid the waste of the volume inside the box, while ensuring the strength of the box, saving the internal space of the oil tank and reducing the cost of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0015] Figure 1 A three-dimensional schematic diagram of the corrugated oil tank structure provided in an embodiment of the present application;

[0016] Figure 2 A front view of the corrugated oil tank structure provided in an embodiment of the present application;

[0017] Figure 3 This is a cross-sectional view of the corrugated oil tank structure provided in an embodiment of the present application.

[0018] In the figure: 1, corrugated sheet 2, box cover 3, secondary terminal box 4, box body 5, high-voltage bushing 6, base channel steel 7, low-voltage bushing 8, tap changer 9, box bottom 10, wheels 11, bending part. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] It should be noted that in this embodiment, the directions or positional relationships indicated by "upper", "lower", "front", "back", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] like Figure 1 As shown, in this embodiment, a corrugated oil tank structure is provided, which includes a box body 4. The box body 4 is a square structure as a whole. Different from the prior art, an inwardly recessed bending portion 11 is provided on the side wall of the square box body 4 to reduce the volume inside the box body 4.

[0023] It should be noted that since the oil tank structure of the present application is a modification made on the basis of the square box body 4, when the bent portion 11 is recessed inward, it does not affect the flatness of other positions on the box body 4, so the box body 4 after bending is still in a square configuration as a whole.

[0024] Please refer to Figure 3 The side wall of the box body 4 where the bending portion 11 is located is bent at a right angle to form a rectangular groove, and a corrugated sheet 1 is arranged in the groove. In addition, since the outer wall of the box body 4 is provided with corrugated sheets 1, the corrugated sheets 1 can also be evenly arranged at the rectangular groove.

[0025] It should be noted that, after the transformer body and multiple current transformers are reasonably arranged inside the box 4, the box wall of the box 4 is bent as a whole according to the actual size, thereby vacating the vacant part and improving the internal space utilization of the box 4.

[0026] In summary of the above embodiments, the present application is based on the traditional square box 4 structure, and according to the actual installation requirements, the side wall of the box 4 is bent inward, thereby reducing the internal volume of the box 4. It should be noted that the inwardly recessed bending portion 11 does not affect the setting of the transformer body and the current transformer; and the side wall of the box 4 where the bending portion 11 is located is bent at a right angle, which is convenient for directly bending and welding the bending portion 11 when welding the box 4, thereby improving the welding efficiency; at the same time, the groove formed in the bending portion 11 is in the shape of a rectangular parallelepiped, which facilitates the installation of the corrugated sheet 1. The oil tank structure set up in the above manner can effectively avoid the waste of the volume inside the box, while ensuring the strength of the box 4, saving the internal space of the oil tank and reducing the cost of the transformer.

[0027] Generally speaking, the specifications of the corrugated sheets 1 on the same fuel tank structure are consistent. Therefore, under the premise that the bent portion 11 exists, the extended length of the corrugated sheet 1 in the groove is naturally smaller than the extended length of the corrugated sheet 1 on the side wall of the box body 4, thereby forming a certain vacant area here, which can be referred to Figure 1 and Figure 3 .

[0028] In the vacant area, a height difference of the corrugated sheet 1 is formed, that is, there is a certain vacancy on the outside of the corrugated sheet 1 in the groove, and the present application utilizes the vacancy to install the secondary terminal box 3 there, and the secondary terminal box 3 is fixedly connected to the box body 4. Since the secondary terminal box 3 is installed using the vacancy, the extension length of the secondary terminal box 3 is also shorter and does not exceed the oil tank body too much. Compared with the existing oil tank, the overall size of the transformer can be reduced, which effectively solves the space limitation problem of the customer's on-site installation of the transformer and is also convenient for the transportation of the transformer.

[0029] In order to improve the fixing strength of the corrugated sheet 1 in the groove, the corrugated sheet 1 can be fixed by welding round steel to strengthen the fixing strength of the corrugated sheet 1. Of course, the corrugated sheet 1 can also be directly welded or set by other fixing methods, which will not be described in detail here, and it is sufficient to ensure that the corrugated sheet 1 has a high fixing strength.

[0030] It should be noted that a transformer body and a plurality of current transformers are arranged in the box 4. The transformer body usually includes a winding and an iron core, and the current transformers are located at the non-bending portion 11, thereby effectively utilizing the internal space of the box 4 to achieve the purpose of reducing transformer oil.

[0031] The end cover of the box body 4 is provided with a high-voltage bushing 5 and a low-voltage bushing 7 connected to the transformer body. The low-voltage bushing 7 and the high-voltage bushing 5 also need to extend into the box body 4 and be connected to the winding. The specific connection method will not be repeated here and can refer to the prior art.

[0032] A tap switch 8 is also provided on the box cover 2. The tap switch 8 is adapted to cooperate with the low-voltage bushing 7. The tap switch 8 is used to adjust the connection between the low-voltage bushing 7 and the winding, thereby achieving adjustment of different gears and changing the output voltage of the low-voltage bushing 7. As for the specific structure and setting method of the tap switch 8, it will not be described here in detail, and reference may be made to the prior art.

[0033] In addition, please refer to Figure 2 The box body 4 is counter-arranged with a base channel steel 6, and the base channel steel 6 is provided with wheels 10 for the box body 4 to move, so as to facilitate the movement of the box body 4.

[0034] In general, when welding the fuel tank body 4, Figure 3The box body 4 is bent and welded at the bending part 11 shown, and the surrounding parts are welded by corrugated sheets 1 in sequence. The secondary terminal box 3 can be welded to the recessed area of ​​the bending part 11, which can further reduce the overall size of the transformer. The box cover 2 and the box bottom 9 are also connected to the Figure 3 Keep consistent and bend at the same place. While ensuring the structural strength of the box 4, the present application effectively saves the internal space of the box 4, improves the utilization rate of the internal space, reduces the total oil volume of the transformer oil, and reduces the use cost of the transformer.

[0035] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0036] Specific examples are used herein to illustrate the principles and implementation methods of the present application, and the description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A corrugated oil tank structure, comprising a square box body, characterized in that: The side wall of the box body is provided with a bending portion which is recessed inwards and used to reduce the internal volume of the box body. The side wall of the box body where the bending portion is located is bent at a right angle to form a rectangular groove, and a corrugated sheet is arranged in the groove.

2. The corrugated oil tank structure according to claim 1, characterized in that: The four side walls of the box body are all provided with the corrugated sheets, and the extended length of the corrugated sheets in the groove is smaller than the extended length of the corrugated sheets on the side walls of the box body.

3. The corrugated oil tank structure according to claim 2, characterized in that: The corrugated sheet on the outer periphery of the box body forms a height difference at the groove, and a secondary terminal box is installed at the height difference, and the secondary terminal box is fixedly connected to the box body.

4. The corrugated oil tank structure according to claim 3, characterized in that: The corrugated sheet in the groove is fixed to the box body by welding round steel.

5. The corrugated oil tank structure according to any one of claims 1 to 4, characterized in that: A transformer body and a plurality of current transformers are arranged in the box, and the current transformers are located at locations other than the bent portions.

6. The corrugated oil tank structure according to claim 5, characterized in that: The end cover of the box body is provided with a high-voltage bushing and a low-voltage bushing connected to the transformer body, and a tap switch for adjusting the output voltage of the low-voltage bushing is provided on the box cover.

7. The corrugated oil tank structure according to claim 5, characterized in that: The bottom of the box body is provided with a base channel steel, and the base channel steel is provided with wheels for the box body to move.

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