Transformer oil tank cleaning device

Abstract

The utility model discloses a transformer oil tank cleaning device which comprises a bottom plate, a control unit and a cleaning unit, the control unit comprises a control box, the control box is arranged on the bottom plate, the cleaning unit is electrically connected with the control unit, the cleaning unit comprises a clamping mechanism and a rotating mechanism, the clamping mechanism comprises a clamping plate, an L-shaped fixing plate is arranged on the clamping plate, and the L-shaped fixing plate is arranged on the rotating mechanism. The L-shaped fixing plate is detachably connected with the transformer oil tank, the rotating mechanism comprises a supporting table, a rotating motor, a driving gear, a rotating shaft and a driven gear, the rotating motor is arranged on the supporting table, the supporting table is arranged on the bottom plate, the driving gear is arranged at the output end of the rotating motor, and the driven gear meshed with the driving gear is arranged on the outer circle face of one end of the rotating shaft; the other end of the rotating shaft is fixedly connected with the clamping plate, a bearing seat is arranged on the top of the control box, and the rotating shaft is rotationally connected into the bearing seat. The transformer oil tank is continuously rotated in the cleaning process, the inner wall of the transformer oil tank can be cleaned more efficiently, and cleaning is thorough.

Description

Technical Field

[0001] The utility model belongs to the technical field of power equipment maintenance, and particularly relates to a transformer oil tank cleaning device. Background Art

[0002] In order to ensure the safe, reliable and stable operation of power transformers after commissioning, in recent years, the state has become more and more strict in controlling transformers, and the requirements for the qualification rate of transformer oil have also become higher and higher. In oil-immersed transformers, transformer oil mainly plays the roles of insulation and cooling. If the performance of the transformer oil does not meet the standards, it will cause the aging and cracking of solid insulation materials, seriously threatening the long-term operation of the transformer and affecting the service life of the transformer. High-performance transformer oil can not only reduce the maintenance and oil change costs, but also is beneficial to the long-term operation of the transformer. The performance indicators of transformer oil are directly important for the quality of the transformer. It has been found in existing test processes that whether the oil tank is cleaned cleanly directly affects the quality of the transformer oil. The existing method for cleaning a transformer oil tank is to first place the oil tank flat on the ground and fill it with clear varnish, and then use a self-priming pump to suck out the clear varnish in the oil tank. However, this cleaning method often has the problem that the inner wall of the oil tank is not cleaned cleanly enough. Content of the Utility Model

[0003] To overcome the above defects, the purpose of the utility model is to provide a transformer oil tank cleaning device. During the cleaning process of the transformer oil tank, it rotates continuously, which can clean the inner wall of the transformer oil tank more efficiently, cleanly and thoroughly.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A transformer oil tank cleaning device includes a bottom plate, a control unit and a cleaning unit. The control unit includes a control box which is arranged on the bottom plate. The cleaning unit is electrically connected with the control unit. The cleaning unit includes a clamping mechanism and a rotating mechanism. The clamping mechanism includes a clamping plate, and an L-shaped fixing plate is arranged on the clamping plate. The L-shaped fixing plate is detachably connected with the transformer oil tank. The rotating mechanism includes a support platform, a rotating motor, a driving gear, a rotating shaft and a driven gear. The rotating motor is arranged on the support platform, and the support platform is arranged on the bottom plate. A driving gear is arranged at the output end of the rotating motor. A driven gear meshing with the driving gear is arranged on the outer cylindrical surface at one end of the rotating shaft. The other end of the rotating shaft is fixedly connected with the clamping plate. A bearing seat is arranged on the top of the control box, and the rotating shaft is rotatably connected in the bearing seat.

[0006] Preferably, the cleaning unit further includes a collecting mechanism. The collecting mechanism includes a collecting box, a collecting pump arranged in the collecting box, and a collecting pipe penetrating through the top cover of the collecting box. The input end of the collecting pump is connected with the collecting pipe.

[0007] Preferably, a sealing opening is provided on the transformer oil tank.

[0008] Preferably, the control unit includes an air switch, a power supply, a control panel and a frequency converter. The air switch, power supply, control panel and frequency converter are arranged in a control box. The air switch is electrically connected to the power supply. The power supply and frequency converter are both electrically connected to the control panel. The frequency converter is electrically connected to the rotating motor.

[0009] The positive and beneficial effects of this utility model:

[0010] 1. The utility model is provided with a rotating mechanism for cleaning the transformer oil tank. During the cleaning process, the transformer oil tank rotates continuously, which can clean the inner wall of the transformer oil tank more efficiently and thoroughly. The qualified rate of the insulating oil in the oil tank after cleaning is high, and the quality is improved.

[0011] 2. This utility model ensures that the cleaned varnish can enter the collection box without coming into contact with the outside air, thus improving the efficiency of transformer cleaning while ensuring no pollution to the environment and the safety of operators around the equipment. The control unit of this utility model transformer tank cleaning device includes a frequency converter, which controls the rotation speed and direction of the rotating motor by the frequency converter, allowing for rapid cleaning of the transformer tank interior. A tank can be cleaned in approximately 6-7 minutes, significantly improving the efficiency of a self-priming pump and significantly saving working time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural diagram of a transformer oil tank cleaning device according to embodiment 1 of the present utility model;

[0013] Figure 2 This is a schematic structural diagram of the clamping mechanism of Example 1 of the present utility model;

[0014] Figure 3 This is a schematic structural diagram of the control unit of Example 1 of the present utility model.

[0015] Among them, 1-base plate, 2-driving gear, 3-rotating shaft, 4-bearing seat, 5-clamping plate, 6-L-shaped fixing plate, 7-transformer oil tank, 8-sealing port, 9-collecting box, 10-collecting pipe, 11-rotating motor, 12-driven gear, 13-support platform, 14-control box. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to some specific embodiments.

[0017] Example 1

[0018] See also Figures 1-3, a transformer oil tank cleaning device, comprising a bottom plate 1, a control unit and a cleaning unit. The control unit includes a control box 14 which is fixed on the bottom plate 1, and the cleaning unit is electrically connected to the control unit. The cleaning unit includes a clamping mechanism and a rotating mechanism. The clamping mechanism includes a clamping plate 5 which is disc-shaped. Four groups of L-shaped fixing plates 6 are fixed on the clamping plate 5. The L-shaped fixing plates 6 are fixed to two U-shaped steel plates symmetrically arranged at the bottom of the transformer oil tank 7 by bolts and nuts. The rotating mechanism includes a support platform 13, a rotating motor 11, a driving gear 2, a rotating shaft 3 and a driven gear 12. The rotating motor 11 is fixed on the support platform 13, and the support platform 13 is fixed on the bottom plate 1. The output end of the rotating motor 11 is fixed with the driving gear 2. An outer circumferential surface of one end of the rotating shaft 3 is fixedly provided with a driven gear 12 meshing with the driving gear 2. Two bearing seats 4 are fixed on the top of the control box 14. The rotating shaft 3 is rotatably connected in the two bearing seats 4. The other end of the rotating shaft 3 penetrates through the two bearing seats 4 and is fixedly connected to the center of the clamping plate 5.

[0019] Furthermore, the cleaning unit further includes a collection mechanism, which includes a collection box 9, a collection pump arranged in the collection box 9, and a collection pipe 10 penetrating through the top cover of the collection box. The input end of the collection pump is connected to the collection pipe 10.

[0020] Furthermore, a sealing port 8 matching the collection pipe 10 is opened on the top cover of the transformer oil tank 7. During the cleaning process, the sealing port is opened, varnish is poured in, and then the sealing port 8 is closed with a lid. Then the transformer oil tank 7 is rotated. After cleaning, the sealing port 8 is opened, the collection pipe 10 is inserted into the transformer oil tank 7 through the sealing port 8, and the collection pump is started to pump out the varnish, ensuring that the varnish after cleaning can enter the collection box 9 without contacting the external air, which ensures the environmental protection and the safety of the operators around the equipment while improving the cleaning efficiency of the transformer.

[0021] Furthermore, the control unit includes an air switch, a power supply, a control board and a frequency converter. The air switch, the power supply, the control board and the frequency converter are arranged in the control box. The air switch is electrically connected to the power supply, the power supply and the frequency converter are both electrically connected to the control board, and the frequency converter is electrically connected to the rotating motor.

[0022] Usage method of the cleaning device for the transformer oil tank of the utility model: First, fix the transformer oil tank on the clamping plate, open the sealing port, pour in the varnish, and then close the sealing port. The staff adjusts the rotation speed and rotation direction of the rotating motor by adjusting the output of the frequency converter. The rotating motor drives the driving gear to rotate, which in turn drives the driven gear to rotate. The driven gear drives the rotating shaft to rotate, and the rotating shaft drives the clamping plate to rotate, thereby adjusting the rotation speed of the transformer oil tank and making it rotate forward and backward at a certain frequency. For example, at a certain speed, the transformer oil tank rotates clockwise three times and then counterclockwise three times, alternating in this way to thoroughly clean the inner wall of the transformer oil tank. After the cleaning of the transformer oil tank is completed, stop the rotating motor, open the sealing port, insert the collection pipe into the transformer oil tank, and start the collection pump to pump the varnish into the collection box to end the cleaning.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present utility model should be covered within the scope of the claims of the present utility model as long as they do not depart from the spirit and scope of the technical solutions of the present utility model.

Claims

1. A transformer oil tank cleaning device, characterized in that, It includes a bottom plate (1), a control unit and a cleaning unit. The control unit includes a control box (14), the control box (14) is arranged on the bottom plate (1), the cleaning unit is electrically connected to the control unit, the cleaning unit includes a clamping mechanism and a rotating mechanism, the clamping mechanism includes a clamping plate (5), an L-shaped fixing plate (6) is arranged on the clamping plate (5), the L-shaped fixing plate (6) is detachably connected to a transformer oil tank (7), the rotating mechanism includes a support platform (13), a rotating motor (11), a driving gear (2), a rotating shaft (3) and a driven gear (12), the rotating motor (11) is arranged on the support platform (13), the support platform (13) is arranged on the bottom plate (1), a driving gear (2) is arranged at the output end of the rotating motor (11), a driven gear (12) meshing with the driving gear (2) is arranged on the outer circumferential surface of one end of the rotating shaft (3), the other end of the rotating shaft (3) is fixedly connected to the clamping plate (5), a bearing seat (4) is arranged on the top of the control box (14), and the rotating shaft (3) is rotatably connected in the bearing seat (4).

2. The transformer oil tank cleaning device according to claim 1, wherein The cleaning unit further includes a collection mechanism, the collection mechanism includes a collection box (9), a collection pump arranged in the collection box, and a collection pipe (10) penetrating through the top cover of the collection box, and the input end of the collection pump is connected to the collection pipe (10).

3. The transformer oil tank cleaning device according to claim 2, characterized in that, A sealing port (8) is arranged on the transformer oil tank (7).

4. The transformer oil tank cleaning device according to any one of claims 1-3, characterized in that, The control unit includes an air switch, a power supply, a control board and an inverter. The air switch, the power supply, the control board and the inverter are arranged in the control box (14). The air switch is electrically connected to the power supply, both the power supply and the inverter are electrically connected to the control board, and the inverter is electrically connected to the rotating motor (11).

Images