A high-efficiency cooling device for power transformers

Abstract

The utility model discloses a kind of high-efficiency cooling devices for power transformer, including shell, the upper end of the shell is movably connected with upper cover, iron core is movably connected in the shell, waterproof cooling fin of movable connection is sleeved on the iron core, multiple drain holes are opened in the shell, the lower end of the shell is fixedly connected with symmetrical base, the side of the shell is erected with the water reservoir of movable connection, vibrator is movably connected in the lower end of the water reservoir, the side of the twentieth cross is fixedly connected with first rotating rod, second fan blade of movable connection is sleeved on the first rotating rod, multiple three-phase windings are sleeved on the iron core, multiple data lines are fixedly connected on the iron core, multiple cooling pipes are fixedly connected and penetrated on the waterproof cooling fin. Through the above structure, accelerate the air circulation inside and outside shell, improve cooling efficiency, effectively guarantee the stable operation of transformer, prolong the service life of equipment.

Description

Technical Field

[0001] This utility model relates to the field of high-efficiency cooling device technology, and in particular to a high-efficiency cooling device for power transformers. Background Technology

[0002] Transformers generate a large amount of heat due to energy losses in their core and windings. If this heat cannot be dissipated in time, the transformer temperature will continue to rise. Excessive temperature not only accelerates the aging of insulation materials and shortens the transformer's lifespan, but may also cause malfunctions, affect the stable operation of the power system, and even cause large-scale power outages, resulting in huge losses to the social economy.

[0003] Commercially available power transformer cooling devices suffer from numerous technical defects. For example, the cooling device disclosed in CN218447472U, while showing some structural improvements, still struggles to overcome the inherent drawbacks of air-cooled devices. Although the device in this patent has a simple structure and low cost, its cooling efficiency is limited. When the transformer is under heavy load and generates a lot of heat, it is still difficult to quickly and effectively reduce the temperature, failing to meet the heat dissipation requirements of the transformer under high load operation. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency cooling device for power transformers, which accelerates air circulation inside and outside the casing, improves cooling efficiency, effectively ensures stable operation of the transformer, and extends the service life of the equipment.

[0005] To achieve the above objectives, a high-efficiency cooling device for power transformers is provided, comprising a housing, an upper cover movably connected to the upper end of the housing, an iron core movably connected inside the housing, waterproof and cooling plates movably connected to the iron core, multiple drainage holes on the housing, and a symmetrical base fixedly connected to the lower end of the housing.

[0006] According to the high-efficiency cooling device for power transformers, a water storage tank is movably connected to the side of the housing, and a vibrator is movably connected to the lower end of the water storage tank.

[0007] According to the high-efficiency cooling device for power transformers, a first circular frame is fixedly connected through the side of the outer casing, a first cross is fixedly connected inside the first circular frame, and a second rotating rod is fixedly connected to the side of the first cross.

[0008] According to the high-efficiency cooling device for power transformers, a first fan blade is movably connected to the second rotating rod, and a rotary motor is fixedly connected to the side of the first fan blade, the rotary motor being movably connected to the first fan blade.

[0009] According to the high-efficiency cooling device for power transformers, a second circular frame is fixedly connected through the other side of the outer casing, a second cross is fixedly connected inside the second circular frame, a first rotating rod is fixedly connected to the side of the second cross, and a second fan blade is movably connected to the first rotating rod.

[0010] According to the aforementioned high-efficiency cooling device for power transformers, multiple three-phase windings are mounted on the core, and multiple data lines are fixedly connected to the core.

[0011] According to the high-efficiency cooling device for power transformers, multiple cooling pipes are fixedly connected through the waterproof cooling plate, the lower end of the cooling pipe is movably connected through the outer shell, the lower end of the outer shell is movably connected to a cold liquid tank, and one end of the cooling pipe is fixedly connected to the cold liquid tank.

[0012] According to the high-efficiency cooling device for power transformers, a waterproof sleeve is fixedly connected to the upper end of the waterproof cooling sheet, the data cable is movably connected to the waterproof sleeve, and multiple insulating tubes are fixedly connected to the upper end of the cover, with the insulating tubes movably connected to the data cable.

[0013] Beneficial effects:

[0014] 1. Through the cold liquid tank, cooling pipes, and waterproof cooling plates, the cold liquid can directly cool the iron core and three-phase windings via the cooling pipes. The first and second fan blades on the side, driven by a rotating motor, accelerate the airflow inside and outside the casing, achieving a combination of air cooling and liquid cooling, improving cooling efficiency, and effectively ensuring the stable operation of the transformer.

[0015] 2. The vibrator at the bottom of the water storage tank prevents liquid sedimentation and ensures uniform cooling medium distribution. The waterproof sleeve and insulating tube prevent data cables from getting damp, thus preventing the risk of electrical leakage. The drain hole allows any moisture that may accumulate inside the casing to be drained promptly, extending the equipment's lifespan.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a perspective view of a high-efficiency cooling device for power transformers proposed in this utility model;

[0019] Figure 2 This is a rear view of a high-efficiency cooling device for a power transformer proposed in this utility model;

[0020] Figure 3This is a cross-sectional view of a high-efficiency cooling device for power transformers proposed in this utility model;

[0021] Figure 4 The present utility model proposes Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 This is a heat dissipation structure diagram of a high-efficiency cooling device for power transformers proposed in this utility model.

[0023] Legend:

[0024] 1. Outer shell; 2. Top cover; 3. Insulating tube; 4. Water storage tank; 5. Drain hole; 6. Base; 7. First circular frame; 8. First fan blade; 9. Rotary motor; 10. Second circular frame; 11. Second fan blade; 12. First rotating rod; 13. Cooling tank; 14. Vibrator; 15. First cross; 16. Second cross; 17. Second rotating rod; 18. Data cable; 19. Iron core; 20. Three-phase winding; 21. Cooling tube; 22. Waterproof cooling plate; 23. Waterproof sleeve. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] Reference Figure 1-5 This utility model provides a high-efficiency cooling device for power transformers, which includes a housing 1, a cover 2 movably connected to the upper end of the housing 1, an iron core 19 movably connected inside the housing 1, a waterproof cooling sheet 22 movably connected on the iron core 19, multiple drainage holes 5 on the housing 1 to prevent damage to the equipment due to water accumulation, and symmetrical bases 6 fixedly connected to the lower end of the housing 1 to ensure that the device is placed stably.

[0027] Specifically: a water storage tank 4 is movably connected to the side of the outer shell 1, and a vibrator 14 is movably connected to the lower end of the water storage tank 4.

[0028] Specifically: A first circular frame 7 is fixedly connected through the side of the outer shell 1, a first cross 15 is fixedly connected inside the first circular frame 7, and a second rotating rod 17 is fixedly connected to the side of the first cross 15.

[0029] Specifically: The second rotating rod 17 is fitted with a first fan blade 8 that is movably connected. A rotary motor 9 is fixedly connected to the side of the first fan blade 8. The rotary motor 9 is movably connected to the first fan blade 8 to accelerate the airflow inside and outside the housing.

[0030] Specifically: a second circular frame 10 is fixedly connected through the other side of the outer shell 1, a second cross 16 is fixedly connected inside the second circular frame 10, a first rotating rod 12 is fixedly connected to the side of the second cross 16, and a second fan blade 11 is movably connected on the first rotating rod 12 to accelerate the airflow inside and outside the shell.

[0031] Specifically: multiple three-phase windings 20 are mounted on the iron core 19, and multiple data lines 18 are fixedly connected to the iron core 19.

[0032] Specifically: Multiple cooling pipes 21 are fixedly connected through the waterproof cooling plate 22. The lower end of the cooling pipe 21 is movably connected through the outer shell 1. The lower end of the outer shell 1 is movably connected to the cold liquid tank 13. One end of the cooling pipe 21 is fixedly connected to the cold liquid tank 13 to ensure the insulation performance and safety of the device.

[0033] Specifically: A waterproof sleeve 23 is fixedly connected through the upper end of the waterproof cooling sheet 22, and the data cable 18 is movably connected to the waterproof sleeve 23. Multiple insulating tubes 3 are fixedly connected to the upper end of the cover 2, and the insulating tubes 3 are movably connected to the data cable 18 to prevent the data cable 18 from getting damp.

[0034] Working principle:

[0035] The transformer core 19 and three-phase windings 20 generate heat due to the current flowing through them. The cooling pipes 21 on the waterproof cooling plate 22 serve as channels for the circulation of coolant within the cold liquid tank 13. The coolant flows from the cold liquid tank 13, rises along the cooling pipes 21, exchanges heat with the core 19 and three-phase windings 20, carrying away a large amount of heat and thus lowering their temperature, before flowing back to the cold liquid tank 13. This process directly cools the core 19 and three-phase windings 20. The device is equipped with an air-cooling system. The first fan blade 8 within the first circular frame 7 and the second fan blade 11 within the second circular frame 10 together form an air circulation system. When the rotary motor 9 starts, it drives the first fan blade 8 to rotate around the second rotating rod 17, causing hot air inside the outer casing 1 to be expelled and cold air from the outside to be introduced. Simultaneously, the second fan blade 11 rotates around the first rotating rod 12, introducing cold air from the other side and accelerating air circulation. The coordinated operation of the first fan blade 8 and the second fan blade 11 improves the heat dissipation efficiency of the device. The water storage tank 4 and vibrator 14 ensure that the cooling medium is always in a uniform state. The vibrator 14 starts at regular intervals to vibrate the water storage tank 4, preventing the cooling medium from settling and ensuring the stability of the cooling effect. Regarding waterproofing and insulation, the waterproof sleeve 23 on the waterproof cooling plate 22 effectively prevents moisture from contacting the data cable 18, avoiding moisture damage. The insulating tube 3 of the upper cover 2 also wraps around the data cable 18, further ensuring insulation performance. The drain hole 5 on the outer casing 1 can promptly drain any condensate or other liquids that may accumulate inside the casing, preventing water accumulation from damaging the equipment.

[0036] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A high-efficiency cooling device for power transformers, comprising a housing (1), characterized in that: The upper end of the outer shell (1) is movably connected to a top cover (2), the inner part of the outer shell (1) is movably connected to an iron core (19), the iron core (19) is fitted with a movably connected waterproof cooling sheet (22), the outer shell (1) is provided with multiple drainage holes (5), and the lower end of the outer shell (1) is fixedly connected to a symmetrical base (6).

2. The high-efficiency cooling device for power transformers according to claim 1, characterized in that, A water storage tank (4) is movably connected to the side of the outer shell (1), and a vibrator (14) is movably connected to the lower end of the water storage tank (4).

3. The high-efficiency cooling device for power transformers according to claim 1, characterized in that, A first circular frame (7) is fixedly connected through the side of the outer shell (1), a first cross (15) is fixedly connected inside the first circular frame (7), and a second rotating rod (17) is fixedly connected to the side of the first cross (15).

4. The high-efficiency cooling device for power transformers according to claim 3, characterized in that, The second rotating rod (17) is fitted with a first fan blade (8) that is movably connected. A rotary motor (9) is fixedly connected to the side of the first fan blade (8), and the rotary motor (9) is movably connected to the first fan blade (8).

5. The high-efficiency cooling device for power transformers according to claim 1, characterized in that, A second circular frame (10) is fixedly connected through the other side of the outer shell (1). A second cross (16) is fixedly connected inside the second circular frame (10). A first rotating rod (12) is fixedly connected to the side of the second cross (16). A second fan blade (11) is movably connected on the first rotating rod (12).

6. The high-efficiency cooling device for power transformers according to claim 1, characterized in that, Multiple three-phase windings (20) are sleeved on the iron core (19), and multiple data lines (18) are fixedly connected to the iron core (19).

7. A high-efficiency cooling device for power transformers according to claim 6, characterized in that, Multiple cooling tubes (21) are fixedly connected through the waterproof cooling plate (22). The lower end of the cooling tube (21) is movably connected through the outer shell (1). The lower end of the outer shell (1) is movably connected to the cold liquid tank (13). One end of the cooling tube (21) is fixedly connected to the cold liquid tank (13).

8. A high-efficiency cooling device for power transformers according to claim 7, characterized in that, A waterproof sleeve (23) is fixedly connected to the upper end of the waterproof cooling sheet (22), and the data cable (18) is movably connected to the waterproof sleeve (23). Multiple insulating tubes (3) are fixedly connected to the upper end of the cover (2), and the insulating tubes (3) are movably connected to the data cable (18).

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