Heat dissipation mechanism of oil-immersed power transformer
By designing the heat dissipation mechanism of the oil-immersed power transformer, the circulating flow and heat exchange of cooling oil is achieved by using components such as oil pumps, oil suction pipes, oil guide pipes, semiconductor refrigeration blocks, and the problem of low heat dissipation effect in the existing technology is solved and significantly improved The cooling effect and service life of the transformer.
Patent Information
- Application Number
- CN202421240528.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-06-03
AI Technical Summary
The existing oil-immersed power transformers have low heat dissipation effect, resulting in slow heat conduction efficiency and reduced heat absorption by oil, which affects the service life and stable operation of the transformer.
A heat dissipation mechanism of an oil-immersed power transformer is designed. By setting up components such as oil pump, oil suction pipe, oil guide pipe, semiconductor refrigeration block, storage cylinder and water injection pipe, the circulating flow and heat exchange of cooling oil are realized, and the semiconductor refrigeration block is used to refrigerate. Further improve the cooling effect.
It effectively improves the cooling effect of the transformer, prevents the cooling oil temperature from rising, extends the service life of the transformer, and improves the heat dissipation efficiency.
Smart Images
Figure CN222483093U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transformers, in particular to a heat dissipation mechanism of an oil-immersed power transformer. Background Art
[0002] As a large transformer, oil-immersed transformers can be widely used in many occasions. They are large in size, low in cost, simple in maintenance, good in heat dissipation, strong in overload capacity, and adaptable to a wide range of environments. During the operation of traditional oil-immersed transformers, the energy consumption in the core and windings is converted into heat. Ensuring the normal operating temperature of the transformer is of great significance to the service life and stable operation of the transformer. At present, the heat dissipation of oil-immersed transformers mainly relies on the installation of a U-shaped oil guide pipe inside the traditional heat sink. The U-shaped oil guide pipe is in full contact with the heat sink, and the oil storage tank and the heat sink surface are provided with a graphene thermal conductive coating to achieve a cooling effect.
[0003] The existing oil-immersed power transformer immerses its internal components in cooling oil and relies on special oil convection inside and outside the transformer for cooling. However, the temperature of the oil body will rise during the long-term heat dissipation process, resulting in slow heat conduction efficiency and reduced heat absorption by the oil, resulting in generally low heat dissipation effect. To this end, we propose a heat dissipation mechanism for oil-immersed power transformers. Utility Model Content
[0004] The main purpose of the utility model is to provide a heat dissipation mechanism for an oil-immersed power transformer, which can effectively solve the problems in the background technology.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A heat dissipation mechanism for an oil-immersed power transformer comprises a transformer body and an oil storage cylinder arranged on one side of the transformer body, wherein an upper end of one side of the transformer body is fixedly connected to a fixing frame, and the oil storage cylinder is detachably connected to one end of the upper surface of the fixing frame, an oil pump is arranged on the upper surface of the fixing frame, an oil outlet end of the oil pump is interconnected with an oil guide pipe, and the end of the oil guide pipe is interconnected with the oil storage cylinder, an oil inlet end of the oil pump is provided with an oil suction pipe, and the end of the oil suction pipe passes through the transformer body and extends to the bottom end inside the transformer body, and one end of the oil storage cylinder is interconnected with an oil filling pipe, and the end of the oil filling pipe passes through the transformer body and extends to the upper end inside the transformer body.
[0007] Furthermore, the oil storage cylinder comprises a shell, a semiconductor refrigeration block and a storage cylinder, the storage cylinder is arranged in the inner cavity of the shell, the semiconductor refrigeration block is detachably connected to the inner side wall of the inner cavity of the shell, and there are multiple semiconductor refrigeration blocks.
[0008] Furthermore, a spray head is provided at the upper end of the inner cavity of the transformer body, and the top end of the spray head is interconnected with the end of the oil filling pipe.
[0009] Furthermore, the outer side walls around the transformer body are fixedly connected with heat dissipation fins.
[0010] Furthermore, an upper end of one side of the oil storage cylinder is interconnected with a water injection pipe, and a lower end of the oil storage cylinder on the same side as the water injection pipe is interconnected with a drainage pipe.
[0011] Furthermore, the shell is made of heat-conducting metal material.
[0012] Compared with the prior art, the utility model has the following beneficial effects: 1. The utility model sets an oil pump, an oil suction pipe, an oil guide pipe, a shell, a semiconductor refrigeration block, a storage cylinder, and a water injection pipe and a drainage pipe to cooperate with each other. The cooling water is injected into the inner cavity of the shell by means of the water injection pipe, and the storage cylinder is wrapped in the water body. During the use of the transformer body, the cooling oil in the pump pressure device body is sucked by means of the oil pump and the oil suction pipe, and injected into the storage cylinder through the oil guide pipe, and heat exchange is performed with the cooling water set in the inner cavity of the shell, so that the temperature of the cooling oil in the transformer will not continue to rise, thereby ensuring the cooling effect of the transformer body. At the same time, the semiconductor refrigeration block can be used to cool the cooling water Refrigeration allows the cooling water to continuously exchange heat with the cooling oil, further preventing the cooling oil temperature from rising, thereby improving the cooling effect of the cooling oil, effectively protecting the transformer and increasing the service life of the transformer; 2. The utility model sets an oil pump, an oil suction pipe, an oil guide pipe, an oil filling pipe and a spray head to cooperate with each other. The oil pump absorbs the oil in the transformer body and conducts it through the oil suction pipe, the oil guide pipe and the oil filling pipe, so as to realize the flow of cooling oil, so that the heat can be further dissipated during the flow process, and the cooling oil can be sprayed into the pump compressor with the help of the spray head, so that the transformer can be cooled quickly, further improving the heat exchange effect and effectively improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 The utility model is a schematic diagram of the overall structure of a heat dissipation mechanism of an oil-immersed power transformer.
[0014] Figure 2 The utility model is a structural schematic diagram of an oil storage barrel of a heat dissipation mechanism of an oil-immersed power transformer.
[0015] Figure 3 The utility model is a schematic structural diagram of a transformer body cross-sectional view of a heat dissipation mechanism of an oil-immersed power transformer.
[0016] In the figure: 1. Transformer body; 2. Heat dissipation fins; 3. Fixing frame; 4. Oil pump; 5. Oil storage cylinder; 6. Oil guide pipe; 7. Oil suction pipe; 8. Water injection pipe; 9. Drain pipe; 10. Oil injection pipe; 11. Sprinkler head; 51. Shell; 52. Semiconductor refrigeration block; 53. Storage cylinder. DETAILED DESCRIPTION
[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0018] like Figure 1-3 As shown, a heat dissipation mechanism of an oil-immersed power transformer includes a transformer body 1, and also includes an oil storage cylinder 5 arranged on one side of the transformer body 1. The upper end of one side of the transformer body 1 is fixedly connected to a fixing frame 3, and the oil storage cylinder 5 is detachably connected to one end of the upper surface of the fixing frame 3. The upper surface of the fixing frame 3 is provided with an oil pump 4, and the liquid outlet end of the oil pump 4 is interconnected with an oil guide pipe 6, and the end of the oil guide pipe 6 is interconnected with the oil storage cylinder 5. The liquid inlet end of the oil pump 4 is provided with an oil suction pipe 7, and the end of the oil suction pipe 7 passes through the transformer body 1 and extends to the bottom end of the transformer body 1. One end of the oil storage cylinder 5 is interconnected with an oil injection pipe 10, and the end of the oil injection pipe 10 passes through the transformer body 1 and extends to the upper end of the transformer body 1. The oil in the transformer body 1 is sucked by the oil pump 4, and is conducted through the oil suction pipe 7, the oil guide pipe 6, and the oil injection pipe 10, so as to realize the flow of cooling oil, so that heat can be dissipated during the flow process, so that the oil body heats up slowly, and effectively ensures the cooling effect of the transformer body 1 during use.
[0019] Among them, the oil storage cylinder 5 includes an outer shell 51, a semiconductor refrigeration block 52 and a storage cylinder 53. The storage cylinder 53 is arranged in the inner cavity of the outer shell 51. The semiconductor refrigeration block 52 is detachably connected to the inner side wall of the inner cavity of the outer shell 51, and there are multiple semiconductor refrigeration blocks 52. A spray head 11 is provided at the upper end of the inner cavity of the transformer body 1, and the top of the spray head 11 is interconnected with the end of the oil filling pipe 10; with the help of the semiconductor refrigeration block 52, the cooling water can be cooled, so that the cooling water can continuously exchange heat with the cooling oil, further preventing the cooling oil temperature from rising, thereby improving the cooling effect of the cooling oil, effectively protecting the transformer, and improving the service life of the transformer.
[0020] The outer walls of the transformer body 1 are all fixedly connected with heat dissipation fins 2; and during the heat dissipation process, the oil body can exchange heat with the outside through the heat dissipation fins 2, which can effectively reduce the temperature rise rate and ensure the cooling effect.
[0021] Among them, the upper end of one side of the oil storage cylinder 5 is interconnected with a water injection pipe 8, and the lower end of the oil storage cylinder 5 on the same side as the water injection pipe 8 is interconnected with a drainage pipe 9, and the outer shell 51 is made of metal heat-conducting material; water can be injected into the oil storage cylinder 5 through the water injection pipe 8 to perform heat exchange with the oil in the oil storage cylinder 5 to ensure the cooling effect of the oil when it is used. The outer shell 51 made of metal heat-conducting material can further improve the heat dissipation effect, thereby improving the cooling effect.
[0022] It should be noted that the utility model is a heat dissipation mechanism of an oil-immersed power transformer. When working, the transformer body 1 realizes insulation and heat exchange heat dissipation through the internal cooling oil, and during the heat dissipation process, the oil body can exchange heat with the outside through the heat dissipation fins 2, which can effectively reduce the heating rate and ensure the cooling effect. At the same time, the cooling water is injected into the inner cavity of the shell 51 with the help of the water injection pipe 8, and the storage cylinder 53 is wrapped in the water body. During the use of the transformer body 1, the cooling oil in the pumping device body is sucked by the oil pump 4 and the oil suction pipe 7, and injected into the storage cylinder 53 through the oil guide pipe 6, and heat exchange is performed with the cooling water set in the inner cavity of the shell 51, so that the temperature of the cooling oil in the transformer will not continue to rise, ensuring the cooling effect of the transformer body 1. At the same time, the cooling water can be cooled by the semiconductor refrigeration block 52, so that the cooling water can continuously exchange heat with the cooling oil, further preventing the cooling oil temperature from rising, thereby improving the cooling effect of the cooling oil, effectively protecting the transformer, and increasing the service life of the transformer.
[0023] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A heat dissipation mechanism for an oil-immersed power transformer, comprising a transformer body (1), characterized in that: The invention also comprises an oil storage cylinder (5) arranged on one side of the transformer body (1); the upper end of one side of the transformer body (1) is fixedly connected to a fixing frame (3), and the oil storage cylinder (5) is detachably connected to one end of the upper surface of the fixing frame (3); an oil pump (4) is arranged on the upper surface of the fixing frame (3); the liquid outlet end of the oil pump (4) is interconnected with an oil guide pipe (6), and the end of the oil guide pipe (6) is interconnected with the oil storage cylinder (5); the liquid inlet end of the oil pump (4) is provided with an oil suction pipe (7), and the end of the oil suction pipe (7) passes through the transformer body (1) and extends to the bottom end of the transformer body (1); one end of the oil storage cylinder (5) is interconnected with an oil injection pipe (10), and the end of the oil injection pipe (10) passes through the transformer body (1) and extends to the upper end of the transformer body (1).
2. The heat dissipation mechanism of an oil-immersed power transformer according to claim 1, characterized in that: The oil storage cylinder (5) comprises an outer shell (51), a semiconductor refrigeration block (52) and a storage cylinder (53); the storage cylinder (53) is arranged in the inner cavity of the outer shell (51); the semiconductor refrigeration block (52) is detachably connected to the inner side wall of the inner cavity of the outer shell (51); and there are multiple semiconductor refrigeration blocks (52).
3. The heat dissipation mechanism of an oil-immersed power transformer according to claim 1, characterized in that: A spray head (11) is provided at the upper end of the inner cavity of the transformer body (1), and the top end of the spray head (11) is interconnected with the end of the oil injection pipe (10).
4. The heat dissipation mechanism of an oil-immersed power transformer according to claim 1, characterized in that: The outer side walls of the transformer body (1) are all fixedly connected with heat dissipation fins (2).
5. The heat dissipation mechanism of an oil-immersed power transformer according to claim 1, characterized in that: The upper end of one side of the oil storage cylinder (5) is interconnected with a water injection pipe (8), and the lower end of the oil storage cylinder (5) on the same side as the water injection pipe (8) is interconnected with a drainage pipe (9).
6. The heat dissipation mechanism of an oil-immersed power transformer according to claim 2, characterized in that: The housing (51) is made of a metal heat-conducting material.