Three-phase oil-immersed transformer
By designing a curved inner channel for heat dissipation and an outer heat dissipation pipe, combined with a circulating pump and pressure relief pipes, the problem of slow heat release in oil-immersed transformers was solved, achieving efficient heat release and stable circulation, thus extending the service life of the transformer.
Patent Information
- Application Number
- CN202423078788.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-12-13
AI Technical Summary
When existing oil-immersed transformers generate a large amount of heat in a short period of time, the heat transfer oil flows slowly, making it difficult to effectively release the heat. This results in excessive heat accumulation inside the transformer, affecting its service life.
The design incorporates a curved inner guide groove and a heat dissipation outer pipe, combined with a circulation pump and pressure relief pipes, to achieve circulation and pressure relief protection of the heat transfer oil. The curved structure extends the flow time, improves heat release efficiency, and automatically adjusts the pressure relief when the temperature changes.
It achieves efficient circulation and heat release of heat transfer oil, ensuring the cooling effect of the transformer body and maintaining stable circulation when the temperature changes, thus extending its service life.
Smart Images
Figure CN223712545U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to transformer technical field especially relates to a three -phase oil -immersed transformer. BACKGROUND
[0002] The transformer is the device that utilizes electromagnetic induction's principle to change alternating voltage, main component is primary coil, secondary coil and core. Main function has: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilizing etc., wherein three -phase oil -immersed transformer belongs to a kind of transformer.
[0003] The existing oil-immersed transformer in the application process, generally adopt traditional multi-piece heat dissipation structure, heat conduction oil itself is slow, when oil-immersed transformer produces a large amount of heat in a short time, it is difficult to release heat to air in time and effectively, it is easy to cause the internal accumulation of heat of oil-immersed transformer to be too high, affect the service life of oil-immersed transformer. UTILITY MODEL CONTENT
[0004] The present disclosure relates to a kind of three -phase oil -immersed transformer, solve the existing oil-immersed transformer in the application process, generally adopt traditional multi-piece heat dissipation structure, heat conduction oil itself is slow, when oil-immersed transformer produces a large amount of heat in a short time, it is difficult to release heat to air in time and effectively, it is easy to cause the internal accumulation of heat of oil-immersed transformer to be too high, affect the service life of oil-immersed transformer.
[0005] The first aspect of the present disclosure provides a kind of three -phase oil -immersed transformer, specifically including: transformer main body, oil storage shell, sealing ring A, heat dissipation outer tube, circulating pump and pressure relief pipe fittings;The transformer main body bottom is fixedly connected with oil storage shell, and sealing ring A is installed at the interval portion between the top of oil storage shell and transformer main body;Heat dissipation outer tube is installed on the outside of oil storage shell, and circulating pump and pressure relief pipe fittings are installed on the bottom of oil storage shell;Circulating pump is connected with pressure relief pipe fittings, and heat dissipation outer tube is connected with circulating pump and pressure relief pipe fittings.
[0006] Further, the inside of the oil storage shell is provided with a flow guide inner groove in a surrounding manner, the flow guide inner groove surrounds the outside of the transformer main body, the flow guide inner groove is curved, and the flow guide inner groove flows with heat conducting oil, by designing the flow guide inner groove as curved, the flow time of heat conducting oil in the oil storage shell is prolonged, so that the heat conducting oil can fully absorb the heat generated by the transformer main body.
[0007] Further, the outside of the oil storage shell is provided with a cooling fin, the heat dissipation outer tube is located outside the oil storage shell in a surrounding manner, the cooling fin is connected with the heat dissipation outer tube, the heat dissipation outer tube is curved, and the heat dissipation outer tube flows with heat conducting oil, by designing the heat dissipation outer tube as curved, the flow time of heat conducting oil in the heat dissipation outer tube is prolonged, so that the heat carried by the heat conducting oil is released to the air through the heat dissipation outer tube.
[0008] Further, the oil storage shell is externally provided with an oil inlet hole and an oil outlet hole, the liquid outlet end of the heat dissipation outer pipe is connected with the liquid inlet end of the flow guide inner groove through the oil inlet hole, and the liquid outlet end of the flow guide inner groove is connected with the liquid inlet end of the heat dissipation outer pipe through the oil outlet hole.
[0009] Further, the liquid inlet end of the circulating pump is connected with the heat dissipation outer pipe, the liquid outlet end of the circulating pump is connected with the heat dissipation outer pipe through the pressure relief pipe, heat conducting oil flows in the circulating pump and the pressure relief pipe, the circulating pump transports the heat conducting oil, the heat conducting oil circulates in the flow guide inner groove and the heat dissipation outer pipe, and the heat conducting oil cools the transformer main body through internal and external circulation.
[0010] Further, the pressure relief pipe is composed of a pipe body, a pressure relief movable cap and a sealing ring B.
[0011] Further, the pressure relief movable cap is slidably connected to the inside of the pipe body, the end of the pressure relief movable cap is located outside the pipe body, the sealing ring B is sleeved outside the pressure relief movable cap, the sealing ring B is in sliding contact with the inner wall of the pipe body, and the sealing ring B seals the connecting part of the pressure relief movable cap and the pipe body under the influence of external weather.
[0012] The utility model provides a three -phase oil -immersed transformer has the following beneficial effects:
[0013] In use, the circulating pump transports the heat conducting oil, the heat conducting oil circulates in the flow guide inner groove and the heat dissipation outer pipe, the flow guide inner groove is designed to be curved, the heat conducting oil is prolonged in the internal flow time of the oil storage shell, the heat conducting oil can fully absorb the heat generated by the transformer main body, the cooling effect of the transformer main body is guaranteed, the heat dissipation outer pipe is designed to be curved, the heat conducting oil is prolonged in the internal flow time of the heat dissipation outer pipe, the heat carried by the heat conducting oil is released to the air through the heat dissipation outer pipe, and the efficient cooling effect of the heat conducting oil on the transformer main body is guaranteed.
[0014] In addition, under the influence of external weather, when the external temperature rises, the heat conducting oil in the pipeline expands, the heat conducting oil pushes the pressure relief movable cap to move outward, the sealing ring B seals the connecting part of the pressure relief movable cap and the pipe body, and the pressure relief protection effect is achieved, when the external temperature decreases, the volume of the heat conducting oil in the pipeline shrinks, the pressure relief movable cap moves inward, and the heat conducting oil in the pipeline is supplemented, so that the heat dissipation effect of the circulating heat conducting oil is guaranteed.
[0015] Other advantages, objects and features of the utility model will be embodied partly through the following description, and will be understood by those skilled in the art through research and practice of the utility model. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.
[0017] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.
[0018] In the attached diagram:
[0019] Figure 1 A schematic diagram of the overall axonometric structure of this application is shown;
[0020] Figure 2 This paper shows a schematic diagram of the disassembled structure of the transformer body and the oil storage casing of this application;
[0021] Figure 3 A schematic diagram of the top axial side structure of the oil storage shell of this application is shown;
[0022] Figure 4 A schematic diagram of the axial structure of the pressure relief fitting of this application is shown;
[0023] Figure 5 A cross-sectional structural diagram of the pressure relief pipe fitting of this application is shown.
[0024] List of reference numerals
[0025] 1. Transformer body; 2. Oil reservoir shell; 201. Heat sink; 202. Inner guide groove; 203. Oil inlet; 204. Oil outlet; 3. Sealing ring A; 4. Heat dissipation outer tube; 5. Circulation pump; 6. Pressure relief fittings; 61. Pipe body; 62. Pressure relief movable cap; 63. Sealing ring B. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0027] Example 1: Please refer to Figures 1 to 5 :
[0028] The utility model provides a kind of three-phase oil-immersed transformer, comprising: transformer main body 1, oil storage shell 2, sealing ring A 3, heat dissipation outer tube 4, circulating pump 5 and pressure relief pipe fittings 6;Transformer main body 1 bottom is fixedly connected with oil storage shell 2, and sealing ring A 3 is installed in the interval portion between the top of oil storage shell 2 and transformer main body 1;Heat dissipation outer tube 4 is installed outside oil storage shell 2, and circulating pump 5 and pressure relief pipe fittings 6 are installed in the bottom of oil storage shell 2;Circulating pump 5 is connected with pressure relief pipe fittings 6, and heat dissipation outer tube 4 is connected with circulating pump 5 and pressure relief pipe fittings 6;The inner side of oil storage shell 2 is provided with flow guide inner groove 202 in a ring shape, and the flow guide inner groove 202 surrounds the outside of transformer main body 1, the flow guide inner groove 202 is curved, and heat conducting oil flows in the flow guide inner groove 202;Heat dissipation fin 201 is provided outside oil storage shell 2, heat dissipation outer tube 4 is located outside oil storage shell 2 in a ring shape, heat dissipation fin 201 is connected with heat dissipation outer tube 4, heat dissipation outer tube 4 is curved, and heat conducting oil flows in heat dissipation outer tube 4.
[0029] In the embodiment of the present disclosure, the oil storage shell 2 is provided with an oil inlet hole 203 and an oil outlet hole 204, the liquid outlet end of the heat dissipation outer tube 4 is connected with the liquid inlet end of the flow guide inner groove 202 through the oil inlet hole 203, the liquid outlet end of the flow guide inner groove 202 is connected with the liquid inlet end of the heat dissipation outer tube 4 through the oil outlet hole 204, the liquid inlet end of the circulating pump 5 is connected with the heat dissipation outer tube 4, the liquid outlet end of the circulating pump 5 is connected with the heat dissipation outer tube 4 through the pressure relief pipe fittings 6, and heat conducting oil flows in the circulating pump 5 and the pressure relief pipe fittings 6;
[0030] By adopting the above technical scheme, the circulating pump 5 transports the heat conducting oil, the heat conducting oil circulates and flows in the flow guide inner groove 202 and the heat dissipation outer tube 4, by designing the flow guide inner groove 202 to be curved, the flow time of the heat conducting oil in the oil storage shell 2 is prolonged, so that the heat conducting oil can fully absorb the heat generated by the transformer main body 1, the cooling effect of the transformer main body 1 is guaranteed, and by designing the heat dissipation outer tube 4 to be curved, the flow time of the heat conducting oil in the heat dissipation outer tube 4 is prolonged, so that the heat carried by the heat conducting oil is released to the air through the heat dissipation outer tube 4, and the efficient cooling effect of the heat conducting oil on the transformer main body 1 is guaranteed.
[0031] In the embodiment two, on the basis of the embodiment one, the pressure relief pipe fittings 6 is composed of pipe body 61, pressure relief movable cap 62 and sealing ring B 63, the pressure relief movable cap 62 is slidingly connected in the pipe body 61, the end of the pressure relief movable cap 62 is located outside the pipe body 61, the sealing ring B 63 is sleeved outside the pressure relief movable cap 62, and the sealing ring B 63 is in sliding contact with the inner wall of the pipe body 61;
[0032] Adopting the technical scheme, when the external temperature rises, the volume of the heat conducting oil in the pipeline expands, the heat conducting oil pushes the pressure relief movable cap 62 to move outward, the sealing ring B 63 seals the connection part of the pressure relief movable cap 62 and the pipe body 61, and the pressure relief protection effect is achieved, when the external temperature decreases, the volume of the heat conducting oil in the pipeline shrinks, the pressure relief movable cap 62 moves inward, the heat conducting oil in the pipeline is supplemented, and the circulating flow and heat dissipation effect of the heat conducting oil are guaranteed.
[0033] The working principle of the embodiment is as follows: the circulating pump 5 transports the heat conducting oil, the heat conducting oil circulates and flows in the flow guide inner groove 202 and the heat dissipation outer pipe 4, the flow guide inner groove 202 is designed to be curved, the flow time of the heat conducting oil in the oil storage shell 2 is prolonged, the heat conducting oil can fully absorb the heat generated by the transformer main body 1, the cooling effect of the transformer main body 1 is guaranteed, the heat dissipation outer pipe 4 is designed to be curved, the flow time of the heat conducting oil in the heat dissipation outer pipe 4 is prolonged, the heat carried by the heat conducting oil is released to the air through the heat dissipation outer pipe 4, and the efficient cooling effect of the heat conducting oil on the transformer main body 1 is guaranteed; when the external temperature rises, the volume of the heat conducting oil in the pipeline expands, the heat conducting oil pushes the pressure relief movable cap 62 to move outward, the sealing ring B 63 seals the connection part of the pressure relief movable cap 62 and the pipe body 61, and the pressure relief protection effect is achieved; when the external temperature decreases, the volume of the heat conducting oil in the pipeline shrinks, the pressure relief movable cap 62 moves inward, the heat conducting oil in the pipeline is supplemented, and the circulating flow and heat dissipation effect of the heat conducting oil are guaranteed.
[0034] In this paper, the following points need attention:
[0035] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.
[0036] 2. In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined to obtain new embodiments.
[0037] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.
Claims
1. A three-phase oil-immersed transformer, comprising: a transformer body (1), an oil storage shell (2), a sealing ring A (3), a heat dissipation outer pipe (4), a circulating pump (5), and a pressure relief pipe (6); characterized in that, The transformer body (1) is fixedly connected to an oil storage shell (2) at the bottom. A sealing ring A (3) is installed at the top of the oil storage shell (2) at the interval between it and the transformer body (1). A heat dissipation pipe (4) is installed on the outside of the oil storage shell (2). A circulation pump (5) and a pressure relief pipe (6) are installed at the bottom of the oil storage shell (2). The circulation pump (5) is connected to the pressure relief pipe (6), and the heat dissipation pipe (4) is connected to the circulation pump (5) and the pressure relief pipe (6).
2. A three-phase oil-immersed transformer according to claim 1, characterized in that, The inner side of the oil storage shell (2) is provided with a flow guide groove (202) in a circumferential shape. The flow guide groove (202) surrounds the outside of the transformer body (1). The flow guide groove (202) is curved and heat transfer oil flows in the flow guide groove (202).
3. A three-phase oil-immersed transformer according to claim 1, characterized in that, The oil storage shell (2) is provided with heat sink (201) on the outside, and heat dissipation pipe (4) is located in a ring around the outside of the oil storage shell (2). The heat sink (201) is connected to the heat dissipation pipe (4). The heat dissipation pipe (4) is curved and heat-conducting oil flows inside the heat dissipation pipe (4).
4. A three-phase oil-immersed transformer according to claim 1, characterized in that, The oil storage shell (2) is provided with an oil inlet (203) and an oil outlet (204) on the outside. The liquid outlet of the heat dissipation outer tube (4) is connected to the liquid inlet of the guide inner tank (202) through the oil inlet (203), and the liquid outlet of the guide inner tank (202) is connected to the liquid inlet of the heat dissipation outer tube (4) through the oil outlet (204).
5. A three-phase oil-immersed transformer according to claim 1, characterized in that, The inlet end of the circulating pump (5) is connected to the heat dissipation outer pipe (4), and the outlet end of the circulating pump (5) is connected to the heat dissipation outer pipe (4) through the pressure relief pipe (6). Heat transfer oil flows in both the circulating pump (5) and the pressure relief pipe (6).
6. A three-phase oil-immersed transformer according to claim 1, characterized in that, The pressure relief fitting (6) consists of a pipe body (61), a pressure relief cap (62), and a sealing ring B (63).
7. A three-phase oil-immersed transformer according to claim 6, characterized in that, The pressure relief cap (62) is slidably connected to the inside of the pipe body (61), with the end of the pressure relief cap (62) located outside the pipe body (61). The sealing ring B (63) is fitted on the outside of the pressure relief cap (62), and the sealing ring B (63) slides in contact with the inner wall of the pipe body (61).