Modular outer cover of metal corrugated oil conservator for transformer

Abstract

The utility model relates to an outer cover of an oil conservator, in particular to a modularized outer cover of a metal corrugated oil conservator for a transformer, which comprises a pentagonal cover body, a straight-sided cover body, an upper connecting plate, a lower connecting plate, a doorway, a maintenance door, a top cover A, a top cover B and a top cover C which are connected through modularized design and bolts. According to the utility model, the manufacturing process is simplified, the manufacturing cost is reduced, and the mounting, dismounting and maintenance efficiency is improved. The outer cover can be flexibly customized and assembled according to the requirements of the oil conservator; compared with a traditional integral outer cover, the modularized design scheme has the advantages of simplifying the manufacturing process, reducing the manufacturing cost, improving the maintenance efficiency, adapting to various environmental conditions and being flexible in customization.

Description

Technical Field

[0001] The utility model relates to an outer cover of an oil conservator, in particular to a modular outer cover of a metal corrugated oil conservator for a transformer. Background Art

[0002] The traditional outer cover of an oil conservator for a transformer is a main structural component of the oil conservator for a transformer, which plays a role in protecting the core body of the oil conservator for a transformer. The traditional outer cover of an oil conservator for a transformer is usually an integral cover-shaped structure, and the parts are welded together to form a whole and fixed on the base of the oil conservator. Its production mode is customized. However, when the outer contour is of the same model but different specifications, only the height is different, and the connection structures at the top and bottom have a certain universality. With the upgrade of the capacity of transformer products, the oil conservator also develops towards a larger capacity, and the size of the oil conservator is thus getting larger and larger. At this time, the problems of the integral-structured outer cover of the oil conservator become more and more obvious.

[0003] First of all, because it is an integral structure and large in size, it must be manufactured separately during production, and cannot be stacked during storage, occupying a large production space. Therefore, it cannot be mass-produced, and it is also difficult to apply automated equipment. In the manufacturing process, the main welding and painting operations require large-scale welding, pretreatment, painting, and baking equipment that matches the large size of the outer cover of the oil conservator for a transformer. Although processes such as electrophoresis and powder spraying have advantages in terms of quality and economy, they are difficult to apply to parts of such a size. This is reflected in relatively high production costs and long production cycles, objectively restricting the development of oil conservator manufacturing enterprises.

[0004] Secondly, the manufacturing process of the integral structure of the traditional outer cover of the oil conservator for a transformer is relatively complex. The forming requires complex welding processes, and it is difficult to control the dimensions. The painting requires operations on a large area, and it is difficult to ensure the painting quality. Therefore, there are many manufacturing defects in the traditional outer cover of the oil conservator, and the quality is not high enough to meet the increasing market demand for quality.

[0005] In addition, at the user end, when the oil conservator fails and needs to be repaired or partially replaced, the entire outer cover must be disassembled before repair and replacement can be carried out. Because it is an integral structure, it is large in volume and weight, and large-scale mobile hoisting equipment must be relied on. And the oil conservator is usually used in the wild, and using large-scale equipment will definitely generate more additional costs, resulting in relatively high maintenance difficulty and cost.

[0006] Therefore, with the changes in transformer products, the traditional outer cover of the oil conservator for a transformer has gradually shown a negative impact on the oil conservator industry due to its own structural problems. A more reasonable structure of the outer cover of the oil conservator has become the demand of oil conservator manufacturers. Content of the Utility Model

[0007] In view of the above problems existing in the oil conservator housing for traditional transformers, the purpose of the present utility model is to provide a modular housing for a metal corrugated oil conservator for transformers.

[0008] The purpose of the present utility model is achieved through the following technical solutions:

[0009] The modular housing of the present utility model is divided into multiple modules that can be independently spliced and disassembled. Each module is respectively a pentagonal housing, top cover A, upper connection plate, top cover B, straight-side housing, top cover C, doorway, maintenance door, and lower connection plate. Both ends in the length direction of the modular housing are pentagonal housings. The front and rear sides between the two pentagonal housings at both ends have the same structure. Each side is provided with multiple maintenance doors. Straight-side housings are provided between adjacent maintenance doors. Doorways are symmetrically provided on the left and right sides of each maintenance door, and upper connection plates and lower connection plates are respectively provided on the upper and lower sides. One side of the doorway is connected to the maintenance door, and the other side is connected to the straight-side housing or pentagonal housing. The lower end of the upper connection plate and the upper end of the lower connection plate are respectively connected to the maintenance door. The upper ends of the upper connection plates on the front and rear sides are connected by top cover B. The upper ends of the straight-side housings on the front and rear sides are connected by top cover C. Top cover A is connected to the tops of the two pentagonal housings at both ends.

[0010] Wherein: the left and right sides of the upper connection plate are respectively connected to the straight-side housing and the pentagonal housing, or the left and right sides of the upper connection plate are both connected to the straight-side housing.

[0011] The left and right sides of the lower connection plate are respectively connected to the straight-side housing and the pentagonal housing, or the left and right sides of the lower connection plate are both connected to the straight-side housing.

[0012] Top cover A and top cover B are connected to each other, and top cover B and top cover C are connected to each other respectively.

[0013] The projection of the pentagonal housing on the horizontal plane is a vertical straight edge, two horizontal straight edges, and two inclined edges. The two horizontal straight edges are parallel to each other and are respectively perpendicular to the vertical straight edge. One end of each horizontal straight edge and one end of the vertical straight edge form an inclined edge. The other end of each horizontal straight edge is used to connect to the doorway, or the other end of each horizontal straight edge is used to connect to the doorway, upper connection plate, and lower connection plate; the shape of top cover A is the same as the projection shape of the pentagonal housing on the horizontal plane.

[0014] After the modules are spliced, they are fixed by bolts.

[0015] A viewing window is provided on the pentagonal housing at any one end.

[0016] The advantages and positive effects of the present utility model are:

[0017] Through the modular outer cover design and simplified manufacturing process, the utility model makes the metal corrugated oil conservator easier to install, maintain and customize, reduces the manufacturing cost, shortens the manufacturing cycle, and promotes the development of the industry. In addition, the modular outer cover also provides better protection and durability, is more flexible in structure, adapts to more needs, and effectively extends the service life of the oil conservator. Specifically:

[0018] 1. Convenience of installation and maintenance: The utility model adopts a modular design for the outer cover, replacing the existing integral structure with a split structure, which can make the outer cover of the oil conservator easier to install and maintain; during installation, a light lifting tool or manual labor can be directly used for installation. When it is necessary to repair or replace a certain module at the application site, only some modules need to be disassembled, and there is no need to disassemble and assemble the entire outer cover of the oil conservator. There is no need for large mobile lifting equipment to intervene, and it can be completed only by relying on manual labor, which greatly improves the convenience of maintenance and also reduces the maintenance cost.

[0019] 2. Manufacturing cost and cycle: The utility model adopts a modular design for the outer cover, dividing the entire outer cover of the oil conservator into a general part and a customized part according to actual needs. Using cold processing forming processes mainly based on stamping and bending to manufacture parts instead of hot processing forming processes, and applying automated equipment, the cost is greatly reduced. And in specific production. The general part can be mass-produced and stocked, and in the specific production according to actual needs, the production cycle does not need to be considered. The production efficiency is greatly improved. For the production of the customized part according to actual needs, compared with customizing the integral outer cover of the oil conservator, the workload is small and the production cycle is greatly shortened. Therefore, the manufacturing cost of the outer cover designed modularly in the utility model is much lower than that of the traditional integral oil conservator outer cover, and the manufacturing cycle is also greatly shortened. To a certain extent, it promotes the development of the industry.

[0020] 3. Better protection and durability: The utility model adopts a modular design for the outer cover, making the entire outer cover of the oil conservator smaller. Small parts can ensure higher precision and provide better protection. And in the production of small parts, more reliable coating processes such as electrophoresis and powder spraying can be applied to ensure better corrosion resistance.

[0021] 4. Flexibility and adaptability: The modular design of the utility model can be customized according to different requirements and demands. Different modules can be designed according to the size, shape and functional requirements of the oil conservator, and different raw materials and coating processes can be selected to adapt to various different application scenarios and customer needs.

[0022] 5. Service life extension: The modular design of the utility model can make the outer cover of the oil conservator easier to replace; when a certain module of the outer cover is damaged or needs to be updated, only that module can be replaced without affecting the structure and function of the entire oil conservator, thereby extending the service life of the entire oil conservator.

[0023] 6. Each part of the present utility model can be locally replaced, having high consistency and interchangeability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the main structural view of the present utility model;

[0025] Figure 2 is the exploded view of the structure of the present utility model;

[0026] Wherein: 1 is a pentagonal cover body, 2 is a top cover A, 3 is an upper connecting plate, 4 is a top cover B, 5 is a straight-edge cover body, 6 is a top cover C, 7 is a doorway, 8 is a maintenance door, 9 is a lower connecting plate, and 10 is a viewing window. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] As Figure 1 , Figure 2 shown, the modular outer cover of the present utility model is divided into multiple modules that can be independently spliced and disassembled. After splicing, the modules are fixed by bolts; the modules are respectively a pentagonal cover body 1, a top cover A 2, an upper connecting plate 3, a top cover B 4, a straight-edge cover body 5, a top cover C 6, a doorway 7, a maintenance door 8, and a lower connecting plate 9. Both ends in the length direction of the modular outer cover are pentagonal cover bodies 1. The front and back sides between the two end pentagonal cover bodies 1 have the same structure. Each side is provided with multiple maintenance doors 8. Straight-edge cover bodies 5 are provided between adjacent maintenance doors 8. Doorways 7 are symmetrically provided on the left and right sides of each maintenance door 8, and upper connecting plates 3 and lower connecting plates 9 are respectively provided on the upper and lower sides. One side of the doorway 7 is connected to the maintenance door 8, and the other side is connected to the straight-edge cover body 5 or the pentagonal cover body 1. The lower end of the upper connecting plate 3 and the upper end of the lower connecting plate 9 are respectively connected to the maintenance door 8. The upper ends of the upper connecting plates 3 on the front and back sides are connected by a top cover B 4. The upper ends of the straight-edge cover bodies 5 on the front and back sides are connected by a top cover C 6. The top cover A 2 is connected to the tops of the two end pentagonal cover bodies 1.

[0029] In this embodiment, both the upper connecting plate 3 and the lower connecting plate 9 are rectangular, and the long sides are in the horizontal direction. In this embodiment, both the maintenance door 8 and the straight-edge cover body 5 are rectangular, and the long sides are in the vertical direction. In this embodiment, the doorway 8 is strip-shaped, and its length is equal to the length of the maintenance door 8. In this embodiment, the lengths of the upper connecting plate 3 and the lower connecting plate 9 are equal, and are equal to the sum of the width of the maintenance door 8 and the widths of the two side doorways 7. In this embodiment, the length of the straight-edge cover body 5 is equal to the sum of the width of the upper connecting plate 3, the width of the lower connecting plate, and the length of the maintenance door 8 (or the doorway 7). In this embodiment, the top cover A 2, the top cover B 4, and the top cover C 6 are all rectangular.

[0030] In this embodiment, the projection of the pentagonal cover body 1 on the horizontal plane is a vertical straight edge, two horizontal straight edges and two inclined edges. The two horizontal straight edges are parallel to each other and perpendicular to the vertical straight edge respectively. One end of each horizontal straight edge and one end of the vertical straight edge are connected by an inclined edge. The other end of each horizontal straight edge is used to connect with the doorway 7, or the other end of each horizontal straight edge is used to connect with the doorway 7, the upper connecting plate 3 and the lower connecting plate 9; the shape of the top cover A2 is the same as the projection shape of the pentagonal cover body 1 on the horizontal plane. On the vertical straight edge of the pentagonal cover body 1 at any one end, a viewing window 10 is opened along the length direction.

[0031] In this embodiment, the left and right sides of the upper connecting plate 3 are respectively connected to the straight edge cover body 5 and the pentagonal cover body 1, or the left and right sides of the upper connecting plate 3 are both connected to the straight edge cover body 5.

[0032] In this embodiment, the left and right sides of the lower connecting plate 9 are respectively connected to the straight edge cover body 5 and the pentagonal cover body 1, or the left and right sides of the lower connecting plate 9 are both connected to the straight edge cover body 5.

[0033] In this embodiment, the top cover A2 and the top cover B4, and the top cover B4 and the top cover C6 are respectively connected.

[0034] During installation, the lower connecting plate 9, the doorway 7 and the upper connecting plate 3 are connected together with bolts to form a component, and then the component and the pentagonal cover body 1, the straight edge cover body 5, the pentagonal cover body 1 are sequentially connected with bolts in the order from left to right to form an assembly. Finally, the top cover A2, the top cover B4 and the top cover C6 are connected together with bolts and then installed on the assembly.

[0035] When the present utility model needs to be installed, first, a plurality of modules are connected in sequence as described above to form an integral structure; then the integral structure is covered on the metal corrugated oil conservator, and the modular outer cover is fixed on the oil conservator through a connecting piece.

[0036] Through modular design, the outer cover of the oil conservator of the present utility model is divided into multiple modules, and each module can be independently installed and disassembled, which is convenient for replacing or repairing the internal components of the oil conservator. At the same time, the present utility model simplifies the manufacturing process of the outer cover, adopts a simple module splicing and bolt fixing method for assembly, replaces the welded connection of the outer cover of the traditional transformer oil conservator, improves the production efficiency, and can be customized according to requirements. The present utility model uses a shearing, punching and folding device to manufacture the component structure, and uses processes such as electrophoresis and powder spraying for surface coating.

Claims

1. A modular outer cover of a metal corrugated oil storage cabinet for a transformer, characterized in that: The modular outer cover is divided into a plurality of modules that can be independently assembled and disassembled, each module comprising a pentagonal cover body (1), a top cover A (2), an upper connecting plate (3), a top cover B (4), a straight-edge cover body (5), a top cover C (6), a doorway (7), a maintenance door (8) and a lower connecting plate (9). Both ends of the modular outer cover in the length direction are pentagonal cover bodies (1), the front and rear sides between the pentagonal cover bodies (1) at both ends have the same structure, each side is provided with a plurality of maintenance doors (8), a straight-edge cover body (5) is provided between adjacent maintenance doors (8), and the left and right sides of each maintenance door (8) are provided with a plurality of maintenance doors (8). A doorway (7) is symmetrically arranged on the sides, and an upper connecting plate (3) and a lower connecting plate (9) are respectively arranged on the upper and lower sides. One side of the doorway (7) is connected to a maintenance door (8), and the other side is connected to a straight-edge cover body (5) or a five-sided cover body (1). The lower end of the upper connecting plate (3) and the upper end of the lower connecting plate (9) are respectively connected to the maintenance door (8). The upper ends of the upper connecting plates (3) on the front and rear sides are connected via a top cover B (4). The upper ends of the straight-edge cover bodies (5) on the front and rear sides are connected via a top cover C (6). The tops of the five-sided cover bodies (1) at both ends are connected to top covers A (2).

2. The modular outer cover of the metal corrugated oil storage cabinet for transformer according to claim 1 is characterized in that: The left and right sides of the upper connecting plate (3) are respectively connected to the straight-edge cover body (5) and the five-sided cover body (1), or the left and right sides of the upper connecting plate (3) are both connected to the straight-edge cover body (5).

3. The modular outer cover of the metal corrugated oil storage cabinet for transformer according to claim 1 is characterized in that: The left and right sides of the lower connecting plate (9) are respectively connected to the straight-edge cover body (5) and the five-sided cover body (1), or the left and right sides of the lower connecting plate (9) are both connected to the straight-edge cover body (5).

4. The modular outer cover of the metal corrugated oil storage cabinet for transformer according to claim 1 is characterized in that: The top cover A (2) and the top cover B (4), and the top cover B (4) and the top cover C (6) are respectively connected.

5. The modular outer cover of the metal corrugated oil storage cabinet for transformer according to claim 1 is characterized in that: The projection of the five-sided cover body (1) on the horizontal plane is a vertical straight edge, two transverse straight edges and two oblique edges, the two transverse straight edges are parallel to each other and perpendicular to the vertical straight edge respectively, a oblique edge is formed between one end of each transverse straight edge and one end of the vertical straight edge, the other end of each transverse straight edge is used to connect with the doorway (7), or the other end of each transverse straight edge is used to connect with the doorway (7), the upper connecting plate (3) and the lower connecting plate (9); the shape of the top cover A (2) is the same as the projection shape of the five-sided cover body (1) on the horizontal plane.

6. The modular outer cover of the metal corrugated oil storage cabinet for transformer according to claim 1 is characterized in that: The modules are fixed together with bolts.

7. The modular outer cover of the metal corrugated oil storage cabinet for transformer according to claim 1 is characterized in that: A window (10) is provided on the five-sided cover (1) at any end.

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