Oil-immersed transformer
By setting up a protective cover and sun visor on the oil-immersed transformer, the problems of insufficient voltage sleeve protection and equipment exposure are solved, and the safety and operating reliability of the equipment are improved.
Patent Information
- Application Number
- CN202421192555.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-05-29
AI Technical Summary
Existing oil-immersed transformers cannot effectively protect the voltage sleeve, causing wind-blown plastic bags or broken branches to be damaged or short-circuited, and the equipment body and oil tank lack sunshade protection, resulting in high temperatures that are not conducive to the operation of the equipment.
An oil-immersed transformer is designed. By setting a protective cover and a sun visor on the oil tank, the connecting blocks and fastening bolts on the protective cover are used to protect the voltage sleeve to avoid external damage, and pass the sun visor. Reduce the equipment temperature.
It effectively improves the safety level of oil-immersed transformers, prevents damage and short circuit of voltage sleeves, and reduces the equipment temperature through sunshade protection to ensure normal operation.
Smart Images
Figure CN222514811U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transformers, in particular to an oil-immersed transformer. Background Art
[0002] Transformer is one of the important equipment in the power supply and distribution system of industrial and mining enterprises and civil buildings. It reduces the 10(6)kV or 35kV network voltage to the 230 / 400V bus voltage used by users. This type of product is suitable for AC 50(60)Hz, three-phase maximum rated capacity 2500kVA (single-phase maximum rated capacity 833kVA, generally not recommended to use single-phase transformer), can be used indoors (outdoors), can be installed on poles when the capacity is 315kVA and below, the ambient temperature is not higher than 40℃, not lower than -25℃, the highest daily average temperature is 30℃, the highest annual average temperature is 20℃, the relative humidity does not exceed 90% (ambient temperature 25℃), and the altitude does not exceed 1000m. The oil-immersed transformer is one of the transformer types. The body (winding and core) of the oil-immersed transformer is installed in an oil tank filled with transformer oil, and the oil tank is welded with steel plates.
[0003] The existing oil-immersed transformer cannot protect the multiple voltage bushings on the main body of the oil-immersed transformer when in use, resulting in damage and short circuit caused by plastic bags blown by the wind being wrapped around the voltage bushings or branches broken by strong winds hitting the voltage bushings, resulting in a low safety level of the oil-immersed transformer. Secondly, the main body and oil tank of the oil-immersed transformer cannot be shaded and directly exposed to the sun, resulting in high temperatures of the main body and oil tank of the oil-immersed transformer, which is not conducive to the normal operation of the equipment. Therefore, an oil-immersed transformer is urgently needed to solve the above technical problems. Utility Model Content
[0004] The utility model aims to provide an oil-immersed transformer to solve the problem that the existing oil-immersed transformer proposed in the above background technology cannot protect multiple voltage bushings on the main body of the oil-immersed transformer when in use, resulting in damage and short circuit caused by plastic bags blown by wind being entangled on the voltage bushings or branches broken by strong winds hitting the voltage bushings, resulting in a low safety level of the oil-immersed transformer. Secondly, the main body and oil tank of the oil-immersed transformer cannot be shaded and protected, and are directly exposed to the sun, so that the temperature of the main body and the oil tank of the oil-immersed transformer is high, which is not conducive to the normal operation of the equipment.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] An oil-immersed transformer comprises an oil-immersed transformer body, an oil tank and a mounting block, wherein the oil-immersed transformer body is arranged inside the oil tank, the voltage bushing on the oil-immersed transformer body passes through the top of the oil tank and extends upward, mounting blocks are connected to both sides of the bottom of the oil tank, mounting holes are provided on the two mounting blocks, first connecting blocks are connected to the left and right side walls of the oil tank, second connecting blocks are arranged directly above a plurality of the first connecting blocks, first connecting holes are provided on a plurality of the first connecting blocks, second connecting holes are provided on a plurality of the second connecting blocks, a protective cover body is arranged directly above the oil tank, a sun visor is arranged on the top of the protective cover body, one ends of a plurality of the second connecting blocks are respectively connected to the left and right side walls of the protective cover body, and a plurality of the second connecting blocks are threadedly connected to the first connecting holes on a plurality of the first connecting blocks through fastening bolts passing through the second connecting holes.
[0007] As a preferred technical solution of the utility model, a plurality of evenly distributed heat dissipation holes are provided on both the left and right side walls of the protective cover body.
[0008] As a preferred technical solution of the utility model, the protective cover body is made of transparent explosion-proof glass.
[0009] As a preferred technical solution of the utility model, there is a gap between the surroundings of the protective cover body and the surroundings of the oil tank.
[0010] As a preferred technical solution of the present utility model, the plurality of the second connection holes are all smooth holes, and the plurality of the first connection holes are all internal threaded holes.
[0011] As a preferred technical solution of the utility model, the number of the first connecting blocks and the second connecting blocks is set to four, and they are arranged opposite to each other in pairs with respect to the oil tank.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] 1. The utility model provides a protective cover body, a first connecting block, a second connecting block, a second connecting hole, a first connecting hole and a fastening bolt, and utilizes the mutual cooperation between them to protect multiple voltage bushings on the main body of the oil-immersed transformer, thereby preventing damage and short circuit caused by plastic bags blown by wind being entangled on the voltage bushings or branches broken by strong winds hitting the voltage bushings, thereby improving the safety level of the oil-immersed transformer.
[0014] 2. The utility model can provide sunshade protection for the main body and oil tank of the oil-immersed transformer by arranging the sunshade, avoid exposure to the sun, reduce the temperature of the main body and oil tank of the oil-immersed transformer, and facilitate the normal operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model;
[0018] Figure 3 It is an enlarged structural schematic diagram of the first connecting block of the utility model;
[0019] Figure 4 It is an enlarged structural schematic diagram of the second connecting block of the utility model.
[0020] In the figure: 1. Oil-immersed transformer body; 2. Oil tank; 3. Mounting block; 4. First connecting block; 5. Second connecting block; 6. Fastening bolts; 7. First connecting hole; 8. Heat dissipation hole; 9. Sun visor; 10. Mounting hole; 11. Second connecting hole; 12. Protective cover. DETAILED DESCRIPTION
[0021] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It should also be noted that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings. The different types of section lines in the drawings in the embodiments of the utility model are not marked according to the national standard, nor are there any requirements for the materials of the components, but are used to distinguish the cross-sectional views of the components in the drawings.
[0022] See also Figure 1-4An oil-immersed transformer comprises an oil-immersed transformer body 1, an oil tank 2 and a mounting block 3. The oil-immersed transformer body 1 is arranged inside the oil tank 2. The voltage bushing on the oil-immersed transformer body 1 passes through the top of the oil tank 2 and extends upward. The bottom of the oil tank 2 is connected to mounting blocks 3 on both sides. The two mounting blocks 3 are provided with mounting holes 10. The left and right side walls of the oil tank 2 are connected to first connecting blocks 4. A plurality of second connecting blocks 5 are arranged directly above the first connecting blocks 4. A plurality of first connecting blocks 4 are provided with first connecting holes 7. A plurality of second connecting blocks 5 are provided with second connecting holes 11. A protective cover body 12 is arranged directly above the oil tank 2. A sunshade 9 is arranged on the top of the protective cover body 12. A sunshade is arranged The sun plate 9 can provide sunshade protection for the oil-immersed transformer body 1 and the oil tank 2 to avoid exposure to the sun, thereby reducing the temperature of the oil-immersed transformer body 1 and the oil tank 2. One ends of the multiple second connecting blocks 5 are respectively connected to the left and right side walls of the protective cover body 12, and the multiple second connecting blocks 5 are all threadedly connected to the first connecting holes 7 on the multiple first connecting blocks 4 through the fastening bolts 6 passing through the second connecting holes 11. By utilizing the mutual cooperation between them, the multiple voltage bushings on the oil-immersed transformer body 1 can be protected to avoid damage and short circuit caused by plastic bags blown by the wind being wrapped around the voltage bushings or branches broken by strong winds hitting the voltage bushings, thereby improving the safety level of the oil-immersed transformer.
[0023] A plurality of evenly distributed heat dissipation holes 8 are provided on both the left and right side walls of the protective cover body 12 .
[0024] The protective cover body 12 is made of transparent explosion-proof glass.
[0025] There is a gap between the surroundings of the protective cover body 12 and the surroundings of the oil tank 2 .
[0026] Among them, the plurality of second connection holes 11 are all smooth holes, and the plurality of first connection holes 7 are all internal thread holes.
[0027] The number of the first connecting blocks 4 and the number of the second connecting blocks 5 are both four, and they are arranged opposite to each other in pairs with respect to the oil tank 2 .
[0028] The working principle and use process of the utility model: during installation, the plurality of second connection blocks 5 are threadedly connected with the first connection holes 7 on the plurality of first connection blocks 4 through the fastening bolts 6 passing through the second connection holes 11, so that the protective cover body 12 is installed just above the main body 1 of the oil-immersed transformer. The protective cover body 12 can protect the plurality of voltage bushings on the main body 1 of the oil-immersed transformer, and avoid damage and short circuit caused by plastic bags blown by the wind being entangled on the voltage bushings or branches broken by the strong wind hitting the voltage bushings, thereby improving the safety level of the oil-immersed transformer;
[0029] The sunshade 9 provided can provide sunshade protection for the oil-immersed transformer body 1 and the oil tank 2 to avoid exposure to the sun, thereby reducing the temperature of the oil-immersed transformer body 1 and the oil tank 2, which is beneficial to the normal operation of the equipment. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.
[0030] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.
Claims
1. An oil-immersed transformer, comprising an oil-immersed transformer body (1), an oil tank (2) and a mounting block (3), characterized in that: An oil-immersed transformer body (1) is arranged inside the oil tank (2), a voltage bushing on the oil-immersed transformer body (1) passes through the top of the oil tank (2) and extends upwards, mounting blocks (3) are connected to both sides of the bottom of the oil tank (2), mounting holes (10) are provided on both mounting blocks (3), first connecting blocks (4) are connected to both left and right side walls of the oil tank (2), second connecting blocks (5) are arranged directly above a plurality of the first connecting blocks (4), and second connecting blocks (5) are provided on a plurality of the first connecting blocks (4). A connecting hole (7), a plurality of second connecting blocks (5) are each provided with a second connecting hole (11), a protective cover body (12) is provided directly above the oil tank (2), a sun visor (9) is provided on the top of the protective cover body (12), one end of the plurality of second connecting blocks (5) are respectively connected to the left and right side walls of the protective cover body (12), and the plurality of second connecting blocks (5) are each threadedly connected to the first connecting holes (7) on the plurality of first connecting blocks (4) through fastening bolts (6) passing through the second connecting holes (11).
2. The oil-immersed transformer according to claim 1, characterized in that: A plurality of evenly distributed heat dissipation holes (8) are provided on both left and right side walls of the protective cover body (12).
3. The oil-immersed transformer according to claim 1, characterized in that: The protective cover body (12) is made of transparent explosion-proof glass.
4. The oil-immersed transformer according to claim 1, characterized in that: There is a gap between the periphery of the protective cover body (12) and the periphery of the oil tank (2).
5. The oil-immersed transformer according to claim 1, characterized in that: The plurality of second connection holes (11) are all smooth holes, and the plurality of first connection holes (7) are all internal threaded holes.
6. The oil-immersed transformer according to claim 1, characterized in that: The number of the first connecting blocks (4) and the second connecting blocks (5) is set to four, and they are arranged in pairs relative to the oil tank (2).