Novel oil-immersed energy-saving transformer

Abstract

The utility model provides a novel oil-immersed energy-saving transformer, which solves the problems of heat dissipation rate and the like of an oil-immersed transformer, and comprises a transformer main body, an isolation hood arranged at the top of the transformer main body, a ventilation filtering assembly arranged at the bottom of the transformer main body, and heat dissipation fins distributed on the side wall of the transformer main body, a flow guide assembly is arranged between the heat dissipation fins, an air blowing assembly is arranged between the isolation cover and the transformer body, and the air blowing assembly communicates with the ventilation filtering assembly through the flow guide assembly. The LED lamp has the advantages of high heat dissipation rate, stable structure and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil-immersed transformers, and particularly relates to a new type of oil-immersed energy-saving transformer. Background Art

[0002] The oil-immersed transformer is a new type of high-performance transformer, which uses oil as the main insulation means of the transformer. The main components include an iron core, a winding, a radiator, etc. It is widely used in the power industry. It relies on the circulation of insulating oil inside the transformer to carry the heat generated by the coil to the radiator of the transformer for heat dissipation. However, in the actual use process, the existing oil-immersed transformer uses natural air flow to dissipate heat. If the external temperature is too high, the heat dissipation rate will drop severely, affecting the normal operation of internal components. In addition, for the generated heat, the existing oil-immersed transformer lacks corresponding recovery and utilization means.

[0003] In order to solve the deficiencies of the existing technology, people have carried out long-term explorations and proposed various solutions. For example, a Chinese patent document discloses an energy-saving oil-immersed transformer [202310338685.X], which includes a transformer main body, a circulation mechanism, a temperature difference power conversion mechanism, and a heat application mechanism; a plurality of corrugated heat sinks are connected to the transformer main body, and a number of temperature sensors are installed on the transformer main body; the circulation mechanism is connected to a side wall of the transformer main body, and the circulation mechanism includes an installation box, and a vertical partition is provided inside the installation box. A heat conversion chamber and a heat application chamber are formed between the vertical partition and the inner wall of the installation box; the temperature difference power conversion mechanism is used to convert the heat energy in the transformer oil absorbed by the oil absorption mechanism into electric energy for storage; the heat application mechanism applies the electric energy stored by the temperature difference power conversion mechanism to cool and dry the transformer main body.

[0004] The above solution solves the problem of heat recovery of the oil-immersed transformer to a certain extent, but there are still many deficiencies in this solution, such as the problem of attenuation of the heat dissipation rate when the external temperature is too high. Summary of the Invention

[0005] The purpose of the utility model is to solve the above problems and provide a linkage jaw assembly with reasonable design and effective avoidance of attenuation of the heat dissipation rate.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: a new type of oil-immersed energy-saving transformer, including a transformer main body, an isolation cover is installed on the top of the transformer main body, a ventilation and filtering component is arranged at the bottom of the transformer main body, heat dissipation fins are distributed on the side wall of the transformer main body, a flow guiding component is arranged between the heat dissipation fins, a blowing component is arranged between the isolation cover and the transformer main body, and the blowing component is communicated with the ventilation and filtering component through the flow guiding component.

[0007] In the above-mentioned new type of oil-immersed energy-saving transformer, the lower end of the transformer body is installed on the isolation table. The transformer body is kept at a gap from the isolation table through isolation columns, and the ventilation and filtration assembly is arranged between the gaps of the isolation table and the transformer body.

[0008] In the above-mentioned new type of oil-immersed energy-saving transformer, the ventilation and filtration assembly includes ventilation fins arranged in a spiral shape at the lower end of the transformer body. There is an air inlet channel left between adjacent ventilation fins, and the port of the air inlet channel is closed by a filter net. The air inlet channel is communicated with the air inlet cavity arranged at the lower end of the transformer body.

[0009] In the above-mentioned new type of oil-immersed energy-saving transformer, the heat dissipation fins extend in the vertical direction, and the flow guiding assembly is arranged between the heat dissipation fins.

[0010] In the above-mentioned new type of oil-immersed energy-saving transformer, the flow guiding assembly includes flow guiding fins arranged inside the heat dissipation fins. A flow guiding plate parallel to the side wall of the transformer body is installed outside the transformer body. Flow guiding grooves for the sliding insertion of the flow guiding fins and the heat dissipation fins are opened on the flow guiding plate. A driving assembly for driving the flow guiding plate to separate from or fit with the transformer is installed between the flow guiding plate and the transformer body.

[0011] In the above-mentioned new type of oil-immersed energy-saving transformer, the driving assembly includes an electric push rod installed at the upper end of the transformer body. The electric push rod is movably connected with the flow guiding plate through a swing link.

[0012] In the above-mentioned new type of oil-immersed energy-saving transformer, the blowing assembly includes a driving fan installed between the isolation cover and the transformer body. The driving fan has an air inlet cavity and an air outlet cavity. The air inlet cavity and the air outlet cavity are separated by an isolation plate arranged between the isolation cover and the transformer body. The air inlet cavity is communicated with the flow guiding assembly.

[0013] In the above-mentioned new type of oil-immersed energy-saving transformer, temperature sensors are installed between the isolation cover and the transformer body and at the upper end of the isolation cover.

[0014] In the above-mentioned new type of oil-immersed energy-saving transformer, grid-shaped support ribs are arranged on the inner wall of the transformer body.

[0015] In the above-mentioned new type of oil-immersed energy-saving transformer, a liquid level sensor and a temperature sensor are arranged inside the transformer body.

[0016] Compared with the existing technology, the advantages of the present utility model are as follows: The blowing assembly accelerates the air flow rate of the flow guiding assembly, and cooperates with the ventilation and filtration assembly at the bottom to ensure uniform heat dissipation of the heat dissipation fins, avoiding the decline of the heat dissipation rate and affecting the stable operation of the transformer; the flow guiding assembly can switch the state of the flow guiding structure and cooperate with the internal and external sensors to adjust the air duct flux in real time; the ventilation and filtration assembly guides the external air to be uniformly introduced, and at the same time keeps the transformer body isolated from the ground, improving the safety of the transformer. Brief Description of the Drawings

[0017] Figure 1 is a schematic structural view of the present utility model;

[0018] Figure 2 is a schematic bottom structure view of the transformer body of the present utility model;

[0019] Figure 3 is a schematic structural view of the driving assembly of the present utility model;

[0020] Figure 4 is a schematic structural view of the blowing assembly of the present utility model;

[0021] In the figure, transformer body 1, isolation cover 2, ventilation and filtration assembly 3, ventilation fins 31, air inlet channel 32, filter net 33, air inlet cavity 34, heat dissipation fins 4, diversion assembly 5, diversion fins 51, diversion plate 52, diversion groove 53, electric push rod 54, swing link 55, blowing assembly 6, driving fan 61, air inlet cavity 62, air outlet cavity 63, isolation plate 64, isolation table 7, isolation column 71. Detailed Description of the Preferred Embodiments

[0022] The following further describes the present utility model in detail with reference to the drawings and specific embodiments.

[0023] As Figures 1-4 shown, a new type of oil-immersed energy-saving transformer includes a transformer body 1 with an oil-immersed structure. The upper end of the transformer body 1 is provided with corresponding oil conservators and bushing structures; an isolation cover 2 is installed on the top of the transformer body 1, and a ventilation and filtration assembly 3 is arranged at the bottom of the transformer body 1 to guide the air around the transformer body 1 to be inhaled along the bottom of the transformer body 1. Similar to the conventional heat dissipation structure, heat dissipation fins 4 are also distributed on the side wall of the transformer body 1 in this application to increase the heat dissipation area. A diversion assembly 5 with a switchable diversion state is arranged between the heat dissipation fins 4. A blowing assembly 6 is arranged between the isolation cover 2 and the transformer body 1 to provide negative pressure suction. The blowing assembly 6 is communicated with the ventilation and filtration assembly 3 through the diversion assembly 5. When the blowing assembly 6 is started, the air at the bottom flows uniformly through the heat dissipation fins 4, and the diversion assembly 5 itself ensures the control of the flow rate and the heat exchange rate.

[0024] Specifically, the whole transformer body 1 is isolated from the ground and the lower end is installed on the isolation table 7. The transformer body 1 keeps a gap with the isolation table 7 through the isolation column 71, and the isolation column 71 is arranged at the corner. The ventilation and filtration assembly 3 is arranged between the gaps of the isolation table 7 and the transformer body 1, and this isolation cavity helps the bottom of the transformer body 1 to dissipate heat.

[0025] Specifically, to accelerate the bottom air intake rate, the ventilation and filtration component 3 includes ventilation fins 31 spirally arranged at the lower end of the transformer body 1 to achieve spiral air intake. An air intake channel 32 is left between adjacent ventilation fins 31, and the port of the air intake channel 32 is closed by a filter net 33 to prevent foreign objects from entering. The air intake channel 32 communicates with an air intake cavity 34 arranged at the lower end of the transformer body 1, and the air intake cavity 34 is opposite to the air intake cavity 34.

[0026] Furthermore, the heat dissipation fins 4 are evenly distributed on the outer wall of the transformer body 1 and extend in the vertical direction. The heat dissipation fins 4 are in a vertical structure or wavy shape to further increase their heat exchange area and at the same time extend the length of the diversion channel. The diversion component 5 is arranged between the heat dissipation fins 4.

[0027] Even further, different from the existing diversion structures, the diversion component 5 in this application includes diversion fins 51 arranged inside the heat dissipation fins 4. A diversion plate 52 parallel to the side wall of the transformer body 1 is installed outside the transformer body 1. A diversion groove 53 for the sliding insertion of the diversion fins 51 and the heat dissipation fins 4 is formed on the diversion plate 52. A driving component for driving the diversion plate 52 to separate from or fit to the transformer is installed between the diversion plate 52 and the transformer body 1. When the driving component drives the diversion plate 52 to separate, a relatively closed diversion channel is formed between the diversion groove 53 and the heat dissipation fins 4. At the same time, the blowing component 6 is also started, so that the heat on the surface of the heat dissipation fins 4 is quickly dissipated.

[0028] In addition, the driving components of each diversion plate 52 are independently controlled, so as to flexibly adjust the heat dissipation rate of each position of the transformer. The driving component includes an electric push rod 54 installed at the upper end of the transformer body 1, and the electric push rod 54 is movably connected to the diversion plate 52 through a swing link 55. When the electric push rod 54 pushes the swing link 55 to swing, the diversion plate 52 also slides relative to the heat dissipation fins 4.

[0029] At the same time, the blowing component 6 includes a driving fan 61 installed between the isolation cover 2 and the transformer body 1. The driving fan 61 has an air intake cavity 62 and an air outlet cavity 63. The air intake cavity 62 and the air outlet cavity 63 are separated by an isolation plate 64 arranged between the isolation cover 2 and the transformer body 1, and the air intake cavity 62 communicates with the diversion component 5. When the driving fan 61 is started, a negative pressure is formed in the air intake cavity 62, and the air in the diversion component 5 rises.

[0030] Visibly, temperature sensors are installed between the isolation cover 2 and the transformer body 1 and at the upper end of the isolation cover 2 to monitor the temperature difference inside and outside the transformer body 1 in real time, and the overall heat dissipation rate is maintained stable by adjusting the blowing component 6.

[0031] Obviously, the inner wall of the transformer body 1 is provided with grid-shaped support ribs, which, on the one hand, increase the thermal contact area of ​​the inner wall of the transformer body 1, and on the other hand, ensure the structural strength of the side wall of the transformer body 1 to avoid excessive deformation of the side wall of the transformer body 1 due to the temperature difference between the inside and the outside.

[0032] Preferably, a liquid level sensor and a temperature sensor are provided inside the transformer body 1 to further improve the monitoring accuracy inside the transformer body 1. The liquid level sensor monitors the amount of internal insulating thermal oil, and cooperates with the alarm unit to realize abnormal transformer operation warning.

[0033] To sum up, the principle of this embodiment is that the heat dissipation fins 4 on the outside of the transformer body 1 adjust the diversion state through the diversion component 5, so as to realize the mutual connection between the ventilation filter component 3 and the blowing component 6. When the diversion component 5 is switched to the diversion state, the heat dissipation rate of the side wall of the transformer body 1 is accelerated to ensure that the internal heat of the transformer body 1 is dissipated in time.

[0034] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0035] Although the present invention uses more terms such as transformer body 1, isolation cover 2, ventilation filter assembly 3, ventilation sheet 31, air inlet channel 32, filter screen 33, air inlet cavity 34, heat dissipation fin 4, guide assembly 5, guide sheet 51, guide plate 52, guide groove 53, electric push rod 54, swing connecting rod 55, blowing assembly 6, driving fan 61, air inlet cavity 62, air outlet cavity 63, isolation plate 64, isolation platform 7, isolation column 71, etc., it does not exclude the possibility of using other terms. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A new type of oil-immersed energy-saving transformer, comprising a transformer main body (1), an isolation cover (2) is installed on the top of the transformer main body (1), and a ventilation and filtering assembly (3) is arranged at the bottom of the transformer main body (1), characterized in that, The side wall of the described transformer main body (1) is distributed with heat dissipation fins (4), a flow guiding component (5) is arranged between the heat dissipation fins (4), a blowing component (6) is arranged between the isolation cover (2) and the transformer main body (1), and the blowing component (6) is communicated with the ventilation and filtering component (3) through the flow guiding component (5).

2. A novel oil-immersed energy-saving transformer according to claim 1, characterized in that, The lower end of the described transformer main body (1) is installed on an isolation table (7), the transformer main body (1) is kept at a gap with the isolation table (7) through an isolation column (71), and the ventilation and filtering component (3) is arranged between the gaps of the isolation table (7) and the transformer main body (1).

3. A novel oil-immersed energy-saving transformer according to claim 2, characterized in that, The described ventilation and filtering component (3) includes ventilation fins (31) arranged in a spiral shape at the lower end of the transformer main body (1), an air inlet channel (32) is left between adjacent ventilation fins (31), the port of the air inlet channel (32) is closed by a filter net (33), and the air inlet channel (32) is communicated with an air inlet cavity (34) arranged at the lower end of the transformer main body (1).

4. A novel oil-immersed energy-saving transformer according to claim 1, characterized in that, The described heat dissipation fins (4) extend in the vertical direction, and the flow guiding component (5) is arranged between the heat dissipation fins (4).

5. A novel oil-immersed energy-saving transformer according to claim 4, characterized in that, The described flow guiding component (5) includes flow guiding pieces (51) arranged on the inner side of the heat dissipation fins (4), a flow guiding plate (52) parallel to the side wall of the transformer main body (1) is installed on the outside of the transformer main body (1), a flow guiding groove (53) for the sliding insertion of the flow guiding pieces (51) and the heat dissipation fins (4) is opened on the flow guiding plate (52), and a driving component for driving the flow guiding plate (52) to separate from or fit with the transformer is installed between the flow guiding plate (52) and the transformer main body (1).

6. A novel oil-immersed energy-saving transformer according to claim 5, characterized in that, The described driving component includes an electric push rod (54) installed at the upper end of the transformer main body (1), and the electric push rod (54) is movably connected with the flow guiding plate (52) through a swing link (55).

7. A novel oil-immersed energy-saving transformer according to claim 1, characterized in that, The described blowing component (6) includes a driving fan (61) installed between the isolation cover (2) and the transformer main body (1), the driving fan (61) has an air inlet cavity (62) and an air outlet cavity (63), the air inlet cavity (62) and the air outlet cavity (63) are separated by an isolation plate (64) arranged between the isolation cover (2) and the transformer main body (1), and the air inlet cavity (62) is communicated with the flow guiding component (5).

8. A novel oil-immersed energy-saving transformer according to claim 7, characterized in that, Temperature sensors are installed between the isolation cover (2) and the transformer main body (1) and at the upper end of the isolation cover (2).

9. A novel oil-immersed energy-saving transformer according to claim 1, characterized in that, The inner wall of the described transformer main body (1) is provided with support ribs in a grid shape.

10. A novel oil-immersed energy-saving transformer according to claim 1, characterized in that, A liquid level sensor and a temperature sensor are arranged inside the described transformer main body (1).

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