Energy-saving rectifier transformer circulating water cooling device

Abstract

The utility model discloses a kind of circulating water cooling devices of energy-saving rectifier transformer, including oil tank and transformer body, transformer body includes silicon rectifying element, incoming line high voltage terminal and low voltage output terminal, silicon rectifying element is arranged in oil tank interior, incoming line high voltage terminal is arranged in the top of oil tank, and low voltage output terminal is arranged in the side of oil tank;The top of oil tank is also provided with oil pillow, and oil pillow is connected with oil tank by oil pipe, and the both sides of silicon rectifying element in oil tank interior are respectively provided with coiled pipe, cooler is arranged on oil pipe, circulating water pump is provided outside oil tank, the water inlet of circulating water pump is connected cooling tower, and the water outlet is respectively connected the water inlet pipe II of coiled pipe, the water inlet pipe I of cooler, the water outlet pipe II of coiled pipe and the water outlet pipe I of cooler are connected cooling tower.The utility model is compact in structure, and circulating cooling effect is good, can effectively reduce oil temperature, avoid oil temperature excessively high and influence transformer normal operation.

Description

Technical Field

[0001] This utility model relates to the field of energy-saving rectifier transformer technology, specifically to a circulating water cooling device for an energy-saving rectifier transformer. Background Technology

[0002] Current oil-immersed rectifier transformers generate significant heat during operation due to their high voltage load, causing the oil temperature to rise. Furthermore, the silicon rectifier elements in the rectifier cabinet are exposed to heat radiation and conduction from the electrical equipment, further increasing the internal temperature of the transformer. This negatively impacts transformer operation and can even lead to transformer damage and production shutdowns due to overheating. Therefore, there is a need to develop a compact, well-circulating cooling system for rectifier transformers that effectively reduces oil temperature and prevents overheating from affecting normal transformer operation. Utility Model Content

[0003] The purpose of this invention is to provide a circulating water cooling device for a rectifier transformer that has a compact structure, good circulating cooling effect, can effectively reduce oil temperature, and avoid excessive oil temperature affecting the normal operation of the transformer.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a circulating water cooling device for an energy-saving rectifier transformer, comprising an oil tank and a transformer body. The transformer body includes a silicon rectifier element, an incoming high-voltage terminal, and a low-voltage output terminal. The silicon rectifier element is disposed inside the oil tank, the incoming high-voltage terminal is disposed on the top of the oil tank, and the low-voltage output terminal is disposed on one side of the oil tank. An oil conservator is also disposed on the top of the oil tank, and the oil conservator is connected to the oil tank via an oil pipe. A serpentine tube is disposed on both sides of the silicon rectifier element inside the oil tank, and a cooler is disposed on the oil pipe. A circulating water pump is disposed outside the oil tank, the inlet of the circulating water pump is connected to a cooling tower, and the outlet is connected to the inlet pipe II of the serpentine tube and the inlet pipe I of the cooler, respectively. The outlet pipe II of the serpentine tube and the outlet pipe I of the cooler are connected to the cooling tower.

[0005] Furthermore, the cooler includes a cylinder, heat exchange tubes, baffles, and a spacer tube. The bottom of the cylinder is provided with a water inlet pipe I, and the top is provided with a water outlet pipe I. The bottom and top of the heat exchange tubes are respectively connected to the oil pipes. At least two layers of baffles are provided in the cylinder from bottom to top. Each layer of baffles has a staggered water outlet on one side. The baffles are positioned by the spacer tube.

[0006] Furthermore, a ventilator is installed at the top of the oil reservoir, with the other end of the ventilator connected to the atmosphere via a respirator.

[0007] The beneficial effects of this invention are as follows: By installing a serpentine tube inside the oil tank and circulating cooling water through it, the oil in the tank can be cooled down. Simultaneously, a cooler is installed on the oil pipe between the oil conservator and the oil tank. When the volume of the oil inside the transformer expands as the oil temperature rises, the oil rises through the oil pipe into the oil conservator. The high-temperature oil exchanges heat with the cooling water as it passes through the heat exchange tube, and the cooled oil circulates back into the oil conservator through the oil pipe. This invention, with its serpentine tube inside the oil tank and a cooler on the oil pipe, provides simultaneous cooling of the oil in the tank, resulting in excellent cooling performance and effectively reducing the oil temperature, thus preventing the transformer from operating abnormally due to excessively high oil temperature. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0009] Figure 2 This is a schematic diagram of the cooler's structure;

[0010] In the diagram: 1-oil tank, 2-serpentine pipe, 3-circulating water pump, 4-transformer body, 41-silicon rectifier element, 42-input high voltage terminal, 43-low voltage output terminal, 5-cooler, 51-inlet pipe I, 52-heat exchange pipe, 53-cylinder, 54-baffle plate, 55-spacer pipe, 56-outlet pipe I, 6-oil pipe, 7-oil conservator, 8-vent pipe, 9-outlet pipe II, 10-breather, 11-inlet pipe II. Detailed Implementation

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0012] Please see Figure 1-2This utility model provides a technical solution: a circulating water cooling device for an energy-saving rectifier transformer, comprising an oil tank 1 and a transformer body 4. The transformer body 4 includes a silicon rectifier element 41, an incoming high-voltage terminal 42, and a low-voltage output terminal 43. The silicon rectifier element 41 is disposed inside the oil tank 1, the incoming high-voltage terminal 42 is disposed on the top of the oil tank 1, and the low-voltage output terminal 43 is disposed on one side of the oil tank 1. An oil conservator 7 is also disposed on the top of the oil tank 1, and the oil conservator 7 is connected to the oil tank 1 via an oil pipe 6. A serpentine tube 2 is disposed on both sides of the silicon rectifier element 41 inside the oil tank 1, and a cooler 5 is disposed on the oil pipe 6. A circulating water pump 3 is disposed outside the oil tank 1. The inlet of the circulating water pump 3 is connected to a cooling water tower, and the outlet is connected to the inlet pipe II11 of the serpentine tube 2 and the inlet pipe I51 of the cooler 5. The outlet pipe II9 of the serpentine tube 2 and the outlet pipe I56 of the cooler 5 are connected to the cooling water tower.

[0013] The cooler 5 includes a cylinder 53, heat exchange tubes 52, baffles 54 and spacer tubes 55. The bottom of the cylinder 53 is provided with a water inlet pipe I 51 and the top is provided with a water outlet pipe I 56. The bottom and top of the heat exchange tubes 52 are respectively connected to the oil pipes 6. The baffles 54 are arranged in at least two layers from bottom to top in the cylinder 53. Each layer of baffles 54 has water outlets arranged alternately on one side. The baffles 54 are positioned by the spacer tubes 55.

[0014] A ventilator 8 is provided at the top of the oil reservoir 7, and the other end of the ventilator 8 is connected to the atmosphere through the respirator 10.

[0015] This invention works as follows: Cooling water is drawn into the serpentine pipe 2 inside the oil tank 1 by the circulating water pump 3. Flowing within the serpentine pipe 2, it cools the oil in the oil tank 1. Finally, it is injected into the cooling tower (not shown in the figure) through the outlet pipe II 9. Simultaneously, a cooler 5 is installed on the oil pipe 6. When the volume of the oil inside the transformer expands as the oil temperature rises, the oil rises through the oil pipe 6 to the oil conservator 7. The high-temperature oil exchanges heat with the cooling water as it passes through the heat exchange pipe 52. The cooled oil then returns to the oil conservator 7 through the oil pipe 6 for reuse. Because this invention uses the serpentine pipe 2 inside the oil tank 1 and the cooler 5 on the oil pipe 6, both cooling devices simultaneously cool the oil in the oil tank 1, resulting in good cooling effect and effectively reducing the oil temperature, thus preventing the transformer from operating abnormally due to excessively high oil temperature.

Claims

1. A circulating water cooling device for an energy-saving rectifier transformer, comprising an oil tank (1) and a transformer body (4), characterized in that: The transformer body (4) includes a silicon rectifier element (41), an incoming high-voltage terminal (42), and a low-voltage output terminal (43). The silicon rectifier element (41) is located inside the oil tank (1), the incoming high-voltage terminal (42) is located on the top of the oil tank (1), and the low-voltage output terminal (43) is located on one side of the oil tank (1). An oil conservator (7) is also provided on the top of the oil tank (1). The oil conservator (7) is connected to the oil tank (1) through an oil pipe (6) and is located inside the oil tank (1). A serpentine tube (2) is provided on both sides of the silicon rectifier element (41). A cooler (5) is provided on the oil pipe (6). A circulating water pump (3) is provided outside the oil tank (1). The inlet of the circulating water pump (3) is connected to the cooling water tower. The outlet is connected to the inlet pipe II (11) of the serpentine tube (2) and the inlet pipe I (51) of the cooler (5). The outlet pipe II (9) of the serpentine tube (2) and the outlet pipe I (56) of the cooler (5) are connected to the cooling water tower.

2. The circulating water cooling device for an energy-saving rectifier transformer according to claim 1, characterized in that: The cooler (5) includes a cylinder (53), heat exchange tubes (52), baffles (54) and spacers (55). The bottom of the cylinder (53) is provided with an inlet pipe I (51) and the top is provided with an outlet pipe I (56). The bottom and top of the heat exchange tubes (52) are respectively connected to the oil pipes (6). The baffles (54) are arranged in at least two layers from bottom to top in the cylinder (53). Each layer of baffles (54) has a staggered water outlet on one side. The baffles (54) are positioned by the spacers (55).

3. The circulating water cooling device for an energy-saving rectifier transformer according to claim 1, characterized in that: A ventilator (8) is provided at the top of the oil pillow (7), and the other end of the ventilator (8) is connected to the atmosphere through a respirator (10).

Images