Oil-immersed transformer
By designing an oil receiving pan assembly and an oil drain pipe structure in an oil-immersed transformer, the heat dissipation and sealing problems of transformer oil were solved, achieving efficient oil drainage and improved equipment safety.
Patent Information
- Application Number
- CN202423166449.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Oil-immersed transformers are prone to overheating after prolonged use, have difficulty dissipating heat, pose a risk of combustion and explosion, have poor sealing performance and are prone to leakage, which affects the safe operation of the equipment.
Design an oil-immersed transformer, comprising a transformer body, a radiator and an oil receiving pan assembly. The oil receiving pan has oil drain holes at both ends, and the transformer oil is discharged through the oil drain pipe. The inclined structure of the oil receiving pan is used to accelerate the oil draining speed, and the oil receiving pan is supported by support blocks to prevent deformation.
It effectively avoids environmental pollution and spontaneous combustion problems caused by transformer oil, improves the oil drainage rate, ensures safe operation of equipment, and enhances sealing performance.
Smart Images
Figure CN223582785U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to transformer technical field, specifically, the utility model relates to an oil immersed transformer. BACKGROUND
[0002] The oil immersed transformer is also called oil immersed test transformer, is one of important equipment in the power supply and distribution system of industrial and mining enterprises and civil buildings, and the transformer oil used in the oil immersed transformer is a liquid of petroleum, which has the possibility of burning and has the disadvantage of environmental protection. However, since the transformer oil has the characteristics of excellent performance and low price, most power transformers still use the transformer oil as the insulation and cooling medium, but it still has the following disadvantages in the actual use process: the transformer oil is prone to overheating after long-time use of the oil immersed transformer, but the transformer oil is not easy to dissipate heat in the oil immersed transformer, the transformer oil is flammable, and when encountering flame, it may burn and explode, the oil immersed transformer has poor sealing performance and is prone to aging, which affects the safe operation of the equipment, and the dripped transformer oil is naturally dripped on the ground. SUMMARY
[0003] The utility model discloses a kind of oil immersed transformers, which are good in oil discharge effect and high in efficiency.
[0004] To achieve the above object, the utility model provides the following technical scheme:
[0005] The utility model provides an oil immersed transformer, including transformer main body, radiator and oil receiving tray assembly, the radiator is connected with one in the opposite ends of transformer main body, and the transformer main body and radiator are located above oil receiving tray assembly and its projection in horizontal direction is located in oil receiving tray assembly;The oil receiving tray assembly includes oil receiving tray and oil discharge pipe, and one oil discharge hole is formed in the two ends of oil receiving tray along longitudinal direction, and the oil discharge pipe is connected to the oil discharge hole.
[0006] In one embodiment, in longitudinal direction, the oil receiving tray is inclined downward along the direction from middle to two ends.
[0007] In one embodiment, the oil discharge hole is arranged in the middle of oil receiving tray in transverse direction, and in transverse direction, the two ends of oil receiving tray are inclined downward to the oil discharge hole.
[0008] In one embodiment, the two ends of oil receiving tray are respectively provided with a flow collection groove, and the oil discharge hole is arranged in the middle of the flow collection groove.
[0009] In one embodiment, the oil receiving tray comprises a tray body and a boss arranged in the tray body, the boss comprises a platform and two downward inclined surfaces arranged on opposite sides of the platform, the platform is located in the middle of the tray body, and the downward inclined surfaces extend to the oil discharge holes.
[0010] In one embodiment, a filter screen is arranged on the oil discharge hole.
[0011] In one embodiment, the oil discharge pipe comprises two branch oil discharge pipes and a main oil discharge pipe, one end of each of the two branch oil discharge pipes is connected to one of the two oil discharge holes, and the other ends of the two branch oil discharge pipes are connected to the main oil discharge pipe through a tee joint.
[0012] In one embodiment, support blocks are arranged below the bottom plate, the support blocks comprise main support blocks and auxiliary support blocks, the main support blocks are arranged at positions corresponding to the transformer body and are arranged in two rows along the longitudinal direction of the oil receiving tray, and each of the auxiliary support blocks is arranged in a group corresponding to one of the radiators, and each group of auxiliary support blocks comprises at least two auxiliary support blocks arranged in the transverse direction of the oil receiving tray.
[0013] In one embodiment, the tee joint is arranged between the two main support blocks and at one end of the main support blocks, and the branch oil discharge pipes are connected to the tee joint through the gaps between the auxiliary support blocks.
[0014] In one embodiment, the main support blocks are made of I-shaped steel, and the auxiliary support blocks are made of channel steel.
[0015] The technical scheme provided by the oil-immersed transformer has the following beneficial effects:
[0016] In the oil-immersed transformer, the oil receiving tray is arranged below the transformer body and the radiator to receive the transformer oil, and the oil is discharged through the oil discharge pipe, thereby solving the problem of environmental pollution; in addition, the oil discharge holes are arranged at two ends of the oil receiving tray, so that the oil discharge rate is accelerated, and the transformer oil can be fully discharged. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the utility model.
[0018] Figure 1 The structure schematic view of the oil-immersed transformer provided in one embodiment of the utility model;
[0019] Figure 2 The structure schematic view of the oil-immersed transformer provided in one embodiment of the utility model; Figure 1
[0020] Figure 3 The structure diagram of the oil receiving disc is provided for an embodiment of the utility model. DETAILED DESCRIPTION
[0021] Embodiments of the utility model will be described in more detail below with reference to the drawings. Although some embodiments of the utility model are shown in the drawings, it should be understood that the utility model can be realized in various forms, and should not be interpreted as being limited to the embodiments described herein, on the contrary, these embodiments are provided to more thoroughly and completely understand the utility model. It should be understood that the drawings and embodiments of the utility model are only for exemplary purposes, and are not used to limit the protection scope of the utility model.
[0022] It should be understood that each step recorded in the method embodiment of the utility model can be executed in different order and / or in parallel. In addition, the method embodiment can include additional steps and / or omit the execution of the shown steps. The scope of the utility model is not limited in this respect.
[0023] The term "comprising" and its variations as used herein are to be construed open-ended, i.e., "including, but not limited to". The term "connected" can be directly connected, or indirectly connected through intermediate components (elements). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Related definitions of other terms will be given in the following description.
[0024] Referring to Figures 1 to 3 The utility model provides an oil immersed transformer, including transformer main body 100, radiator 200 and oil receiving disc component 300.
[0025] The radiator 200 is connected with one at the opposite ends of the transformer main body 100, for accelerating the heat generated by the transformer main body 100 to dissipate.
[0026] The oil receiving disc component 300 includes oil receiving disc 310 and oil discharge pipe 320, the oil receiving disc 310 includes bottom plate (not indicated, same below) and side plate arranged on the circumference of bottom plate, the bottom plate is provided with an oil discharge hole 311 at both ends along the longitudinal direction, and the oil discharge pipe 320 is connected to the oil discharge hole 311 from the bottom of the bottom plate.
[0027] The transformer main body 100 and the radiator 200 are arranged above the oil receiving disc component 300 and the projection thereof in the horizontal direction is located in the oil receiving disc component 300.
[0028] In the embodiment, the transformer main body 100 is fixed with the oil receiving disc component 300 through the support body 400, and the radiator 200 is suspended above the oil receiving disc component 300.
[0029] Thus, the transformer oil is received by the oil receiving tray 310 and discharged outwardly through the oil discharge pipes 320 at both ends of the oil receiving tray 310, avoiding the pollution of the environment or the problem of spontaneous combustion of the transformer oil. In this embodiment, the oil discharge pipes 320 are arranged at both ends of the oil receiving tray 310, which can accelerate the discharge rate of the transformer oil and make the transformer oil be discharged as much as possible.
[0030] In one embodiment, the oil receiving tray 310 is inclined downward in the longitudinal direction from the middle to both ends, which can further accelerate the oil discharge rate of the transformer oil and improve the oil discharge effect.
[0031] In one embodiment, the oil discharge hole 311 is arranged at the middle of the oil receiving tray 310 in the transverse direction, and the oil receiving tray 310 is inclined downward at both ends toward the oil discharge hole 311 in the transverse direction, which can further accelerate the oil discharge rate of the transformer oil and improve the oil discharge effect.
[0032] Please refer to Figure 3 In one embodiment, the oil receiving tray 310 is provided with a flow collection groove 3011 at each end, and the oil discharge hole 311 is arranged at the middle of the flow collection groove 3011. The transformer oil is collected in the flow collection groove 3011 through the flow collection groove 3011, which can further accelerate the oil discharge rate of the transformer oil and improve the oil discharge effect. It can be understood that the height of the flow collection groove 3011 is the lowest in the oil receiving tray 310.
[0033] In one embodiment, the oil receiving tray 310 comprises a tray body 301 and a boss 302 arranged in the tray body 301. The boss 302 comprises a platform 3021 and a downward inclined surface 3022 arranged at opposite sides of the platform 3021. The platform 3021 is arranged at the middle of the tray body 301, and the downward inclined surface 3022 extends to the oil discharge hole 311. The transformer body 100 is arranged on the platform 3021.
[0034] In this embodiment, the tray body 301 and the boss 302 are arranged separately, and are machined respectively in the early stage and then assembled into the oil receiving tray 310. In this embodiment, the tray body 301 is made of sheet metal, and the flow collection groove 3011 and the oil discharge hole 311 are arranged on the tray body 301. The platform 3021 and the downward inclined surface 3022 are arranged on the boss 302, which is convenient for machining and saves cost.
[0035] In one embodiment, a filter screen (not shown in the figure) is arranged on the oil discharge hole 311, which can filter out larger impurities and avoid the blockage of the oil discharge pipe 320, ensuring the smooth discharge of the transformer oil.
[0036] In one embodiment, the oil drain pipe 320 comprises two branch oil drain pipes 321 and a main oil drain pipe 322, one end of each of the two branch oil drain pipes 321 is connected to one of the two oil drain holes 311, and the other end of the two branch oil drain pipes 321 is connected to the main oil drain pipe 322 through a tee joint. It can be understood that the main oil drain pipe 322 is provided with a control switch for controlling the discharge of transformer oil. The control switch can be a valve or a faucet as needed.
[0037] In one embodiment, the oil collecting disc 310 is provided with support blocks below (i.e. below the bottom plate), the support blocks comprise main support blocks 331 and auxiliary support blocks 332, the main support blocks 331 are arranged at positions corresponding to the transformer body 100 and there are two main support blocks 331 arranged along the longitudinal direction of the oil collecting disc 310, and each of the two heat sinks 200 is provided with a group of auxiliary support blocks 332, each group of auxiliary support blocks 332 comprises at least two auxiliary support blocks 332 arranged along the transverse direction of the oil collecting disc 310, so that the middle and both ends of the oil collecting disc 310 are provided with support blocks, avoiding deformation of the oil collecting disc 310 under pressure.
[0038] In one embodiment, the tee joint is arranged between the two main support blocks 331 and at one end of the main support blocks 331, and the branch oil drain pipes 321 pass through the gaps of the auxiliary support blocks 332 and are connected to the tee joint.
[0039] In one embodiment, the main support blocks 331 are made of I-beams, and the auxiliary support blocks 332 are made of channel steels, the middle position of the oil collecting disc 310 is supported by the I-beams with high strength, and the end of the oil collecting disc 310 is supported by the channel steels with relatively low strength, thereby reducing the cost under the premise of meeting the support effect requirement.
[0040] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principles. Those skilled in the art should understand that the utility model range involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above utility model concept. For example, the technical solutions formed by replacing the above features with the technical features with similar functions in the utility model (but not limited to) of the present application.
[0041] Although the subject matter has been described in language specific to structural features and / or methodological acts, it is to be understood that the subject defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.
Claims
1. An oil-immersed transformer, characterized in that, The transformer includes a transformer body, a radiator, and an oil receiving pan assembly. One radiator is connected to each of the opposite ends of the transformer body. The transformer body and the radiator are both located above the oil receiving pan assembly, and their horizontal projections are located inside the oil receiving pan assembly. The oil receiving tray assembly includes an oil receiving tray and an oil drain pipe. The oil receiving tray includes a base plate and side plates arranged around the periphery of the base plate. An oil drain hole is opened at each end of the base plate along the longitudinal direction, and the oil drain pipe is connected to the oil drain hole.
2. The oil-immersed transformer according to claim 1, characterized in that, In the longitudinal direction, the oil receiving tray is inclined downwards from the middle to both ends.
3. The oil-immersed transformer according to claim 2, characterized in that, The oil drain hole is located in the middle of the horizontal length of the oil receiving plate, and both ends of the oil receiving plate are inclined downward toward the oil drain hole in the horizontal length direction.
4. The oil-immersed transformer according to claim 3, characterized in that, The oil receiving tray is provided with a manifold at each end, and the oil drain hole is located in the middle of the manifold.
5. The oil-immersed transformer according to claim 2, characterized in that, The oil receiving tray includes a tray body and a boss located within the tray body. The boss includes a platform and downwardly inclined surfaces located on opposite sides of the platform. The platform is located in the middle of the tray body, and the downwardly inclined surfaces extend to the oil drain hole. The transformer body is mounted on the platform with the aid of a support.
6. The oil-immersed transformer according to claim 1, characterized in that, The oil drain hole is covered with a filter screen.
7. The oil-immersed transformer according to claim 1, characterized in that, The drain pipe includes two branch drain pipes and a main drain pipe. One end of each of the two branch drain pipes is connected to two drain holes in a one-to-one correspondence. The other end of the two branch drain pipes is connected to the main drain pipe through a T-joint.
8. The oil-immersed transformer according to claim 7, characterized in that, The base plate is provided with a support block, which includes a main support block and an auxiliary support block. The main support block is located at the position corresponding to the transformer body and two blocks are arranged along the longitudinal direction of the oil receiving pan. The auxiliary support block is provided for each of the two radiators. Each set of auxiliary support blocks includes at least two auxiliary support blocks that are spaced apart along the transverse direction of the oil receiving pan.
9. The oil-immersed transformer according to claim 8, characterized in that, The tee connector is located between the two main support blocks and at one end of the main support block. The branch drain pipe passes through the gap of the auxiliary support block and connects to the tee connector.
10. The oil-immersed transformer according to claim 8, characterized in that, The main support block is made of I-beams, and the auxiliary support block is made of channel steel.