An oil-immersed transformer capable of automatically filtering oil

Abstract

The application discloses an oil-immersed transformer capable of automatically filtering oil, which comprises a base and a circulating box. An oil tank is arranged on the top of the base and fixedly connected with the base through a support frame. An oil tank cover is connected with the top of the oil tank, and a bearing plate is fixedly connected inside the oil tank. An oil-immersed transformer body is installed on the bearing plate, and the top of the oil-immersed transformer body penetrates the center of the oil tank cover. The oil-immersed transformer capable of automatically filtering oil is provided with a clamping groove. When the scraper connected with the clamping groove cannot be normally used due to damage, the scraper can be conveniently disassembled and replaced by workers. The disassembling and assembling process is relatively simple and convenient. The oil-immersed transformer is provided with an electric valve. The oil-immersed transformer can quickly discharge the oil with oil dirt and heat absorbed by the electric valve under the action of gravity into the circulating box without the help of related driving extraction equipment, so that the filter screen in the circulating box can be used to filter the oil dirt in the oil, and the oil can be recycled.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil-immersed transformers, in particular to an oil-immersed transformer capable of automatically filtering oil. BACKGROUND

[0002] An oil-immersed transformer is a kind of transformer, and the body (winding and core) of the oil-immersed transformer is installed in an oil tank filled with transformer oil. The oil tank is welded from steel plates. The oil tank of a medium or small transformer is composed of a tank shell and a tank cover, and the body of the transformer is placed in the tank shell, and the tank cover can be opened to lift out the body for maintenance. In order to ensure the normal use of the oil heat dissipation function of the existing oil-immersed transformer, the oil needs to be replaced manually, which is not convenient to use. On the other hand, the oil in the oil tank will produce oil dirt and adhere to the inner wall of the oil tank after a long time of heat absorption, thereby affecting the heat dissipation effect of the oil and the normal use of the oil tank. In view of the above problems, the existing equipment needs to be improved. SUMMARY

[0003] The present application relates to the technical field of oil-immersed transformers, in particular to an oil-immersed transformer capable of automatically filtering oil.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an oil-immersed transformer capable of automatically filtering oil, comprising a base and a circulating tank,

[0005] The oil tank is fixedly connected to the base through a support frame, the top of the oil tank is connected with an oil tank cover, and the inside of the oil tank is fixedly connected with a bearing plate, the oil-immersed transformer body is installed on the bearing plate, the top of the oil-immersed transformer body penetrates the center position of the oil tank cover, the bottom of the bearing plate is fixedly connected with a waterproof seat, a sliding groove is formed in the bearing plate, a motor is arranged in the waterproof seat, the output end of the motor is connected with a scraper through a transmission assembly, the scraper is in contact with the inner wall of the oil tank, and an electric valve is connected to the bottom of the oil tank.

[0006] The circulating tank is arranged below the oil tank, a circulating pump is arranged in the circulating tank, and the circulating tank is arranged on the top of the base. The circulating pump is fixedly connected to one end of a circulating pipe network through a conveying pipeline, the other end of the circulating pipe network is fixedly connected to the top of one side of the oil tank, and a filter screen is arranged in the oil tank.

[0007] Preferably, the base top is provided with a groove, and a circulating box is slidably connected in the groove, and the bottom of the circulating box is connected with a ball, and the balls are distributed at equal intervals on the bottom of the circulating box.

[0008] By adopting the above technical scheme, the circulating box is convenient for the staff to move, so that the pollutants or oil in the circulating box can be cleaned or replaced.

[0009] Preferably, the outer wall of the oil tank is provided with a control box and a timing device, and the oil tank and the oil tank cover are detachably connected.

[0010] By adopting the above technical scheme, the automation level of the device can be improved.

[0011] Preferably, the sliding grooves are symmetrically arranged on the bearing plate, and a plurality of infiltration channels are arranged on the bearing plate.

[0012] By adopting the above technical scheme, the oil can flow to the electric valve through the infiltration channels.

[0013] Preferably, the motor, the transmission assembly and the scraper constitute a rotating structure, and the scrapers are symmetrically arranged in the oil tank.

[0014] By adopting the above technical scheme, the motor can be used to drive the scraper to rotate, so that the oil stains on the inner wall of the oil tank can be cleaned by the rotation.

[0015] Preferably, the transmission assembly comprises a transmission frame and a transmission column, and the transmission frame is connected with the output end of the motor through the transmission column at the top, and the transmission frame is symmetrically provided with mounting columns, and the mounting columns are symmetrically arranged on both sides of the transmission column.

[0016] By adopting the above technical scheme, the transmission assembly can be used to connect the transmission motor and the scraper, so that the motor can drive two groups of scrapers to rotate at the same time.

[0017] Preferably, the scraper is clamped in the clamping groove, and the clamping groove is arranged on the mounting column, and the mounting column is arranged in the sliding groove.

[0018] By adopting the above technical scheme, the installation mode of the scraper can be optimized, so that the scraper can be quickly disassembled and assembled by the working staff.

[0019] Preferably, the top of the circulating box is slidably connected with a circulating box cover, and the circulating box cover is provided with a through hole, and the through hole is correspondingly arranged with the electric valve.

[0020] By adopting the above technical scheme, the electric valve can discharge the oil to be filtered into the circulating box through the through hole, so that the oil can be filtered by the filter screen in the circulating box.

[0021] Preferably, the filter screen is arranged below the through hole and is clamped on the top of the limiting frame fixedly connected to the inner wall of the circulating tank and in a circular ring shape.

[0022] By adopting the above technical scheme, the connection relationship between the limiting frame and the filter screen is optimized, thereby facilitating.

[0023] Compared with the prior art, the oil-immersed transformer of the application has the advantages that:

[0024] (1) The motor is arranged, and the motor can drive the scraper to rotate in the sliding groove through the transmission assembly, so that the rotating scraper can be used to move and scrape the inner wall of the oil tank, thereby preventing the oil dirt from adhering to the inner wall of the oil tank, ensuring normal use, preventing oil deterioration, and prolonging the service life of the oil.

[0025] (2) The clamping groove is arranged, and the scraper clamped in the clamping groove can be easily disassembled and replaced by the staff when it is damaged and cannot be normally used, and the disassembly and installation process is simple and convenient. The electric valve is arranged, and the oil liquid with adsorbed heat and oil dirt can be quickly discharged into the circulating tank under the action of gravity without the aid of related driving extraction equipment, so that the filter screen in the circulating tank can be used to filter the oil dirt in the oil liquid, thereby facilitating the recycling of the oil liquid.

[0026] (3) The circulating pump is arranged, and the circulating pump can deliver the oil liquid with low temperature after filtering the oil dirt in the circulating tank to the oil tank to replace the original oil liquid with high temperature in the oil tank for heat exchange and other related work, thereby enriching the structure of the device and making the operation more convenient than manually filtering and replacing the oil liquid.

[0027] (4) The circulating tank cover is arranged, and the circulating tank cover slidingly connected to the top of the circulating tank can be separated from the circulating tank by the staff, thereby facilitating the cleaning of the pollutants and oil dirt filtered by the filter screen, and thereby improving the rationality of the structure of the device.

[0028] (5) The control box and the timing device are arranged, and the timing device can start the above-mentioned oil liquid filtering and oil dirt cleaning assembly at a timing under the cooperation of the control box, thereby improving the automation level of the device, enriching the functionality of the device, and thereby ensuring the normal work of the device and preventing the normal use of the oil-immersed transformer body from being affected by the overheating or condensation and deterioration of the oil liquid. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a front view of the cross-sectional structure of the application.

[0030] Figure 2It is a schematic diagram of the main view structure of the present application.

[0031] Figure 3 It is a schematic diagram of the cross-sectional structure of the present application.

[0032] Figure 4 It is a schematic diagram of the main view structure of the present application. Figure 1

[0033] Figure 5 It is a schematic diagram of the overall structure of the position distribution of the through hole on the circulating tank cover of the present application.

[0034] Figure 6 It is a schematic diagram of the connection relationship between the transmission frame, transmission column, mounting column, clamping groove and scraper of the present application.

[0035] In the figure: 1, base, 101, groove, 2, support frame, 3, oil tank, 4, oil tank cover, 5, bearing plate, 501, sliding groove, 502, lower infiltration channel, 6, oil-immersed transformer main body, 7, waterproof seat, 8, motor, 9, transmission frame, 901, transmission column, 10, mounting column, 1001, clamping groove, 11, scraper, 12, electric valve, 13, circulating tank, 14, circulating tank cover, 15, through hole, 16, circulating pump, 17, ball, 18, conveying pipeline, 19, circulating pipe network, 20, limiting frame, 21, filter screen, 22, control box, 23, timing device. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] Please refer to Figures 1-6 , the present application provides a technical solution: an oil-immersed transformer capable of automatically filtering oil,

[0038] Embodiment 1; as Figure 1 , Figure 2 and Figure 3 ​As shown, the base 1 and the circulating tank 13, the base 1 top is provided with oil tank 3, and the oil tank 3 is fixedly connected with the base 1 through the support frame 2, the top of the oil tank 3 is connected with the oil tank cover 4, at the same time, the oil tank 3 is fixedly connected with the bearing plate 5 inside, the bearing plate 5 is installed with the oil immersed transformer body 6, and the top of the oil immersed transformer body 6 penetrates the center position of the oil tank cover 4, the bottom of the bearing plate 5 is fixedly connected with the waterproof seat 7, and the bearing plate 5 is provided with the sliding groove 501, and the waterproof seat 7 is provided with the motor 8, the output end of the motor 8 is connected with the scraper 11 through the transmission assembly, and the scraper 11 is in contact with the inner wall of the oil tank 3, and the bottom of the oil tank 3 is connected with the electric valve 12.

[0039] Further embodiments, the base 1 top is provided with recess 101, and the recess 101 is slidably connected with the circulating tank 13, the bottom of the circulating tank 13 is connected with the ball 17, and the ball 17 is distributed at equal intervals on the bottom of the circulating tank 13.

[0040] Specifically, the staff can clean the inner wall of the circulating tank 13 by pushing the circulating tank cover 14, and the staff can manually move the position of the circulating tank 13 according to the cleaning needs, and the ball 17 can assist the support when the staff moves the circulating tank 13, thereby facilitating to reduce the abrasion caused by the moving friction to the circulating tank 13.

[0041] Further embodiments, the outer wall of the oil tank 3 is installed with the control box 22 and the timing device 23, and the oil tank 3 and the oil tank cover 4 are detachably connected.

[0042] Specifically, the cooperation of the control box 22 and the timing device 23 is used to control the related electrical equipment to start timing, which is the prior art, and the specific working principle and the detection circuit design will not be described here.

[0043] Further embodiments, the sliding groove 501 is symmetrically provided on the bearing plate 5, and a plurality of groups of infiltration channels 502 are provided on the bearing plate 5.

[0044] Preferably, the infiltration channels 502 are provided at equal intervals on the bearing plate 5, and the sliding groove 501 is in the form of a semicircular ring.

[0045] Further embodiments, the motor 8, the transmission assembly and the scraper 11 constitute a rotating structure, and the scraper 11 is symmetrically arranged in the oil tank 3.

[0046] Specifically, the motor 8 drives the scraper 11 to rotate in the sliding groove 501 through the transmission assembly, and the sliding groove 501 plays a role in limiting the rotation range, thereby facilitating to ensure that the scraper 11 rotates to clean the oil stains on the inner wall of the oil tank 3.

[0047] As Figure 1 , Figure 2 , Figure 3 ,Figure 4 And Figure 5 As shown in the figure, the circulating tank 13 is arranged below the oil tank 3, and the circulating tank 13 is arranged on the top of the base 1, and the circulating pump 16 is fixedly connected with one end of the circulating pipe network 19 through the conveying pipe 18, and the other end of the circulating pipe network 19 is fixedly connected with the top of one side of the oil tank 3, and the inside of the oil tank 3 is provided with a filter screen 21.

[0048] Preferably, the circulating pipe network 19 is a telescopic pipe that can be deformed, so as to facilitate the staff to move the circulating tank 13 without causing damage.

[0049] In further embodiments, the circulating tank 13 is slidingly connected with a circulating tank cover 14 on the top, and the circulating tank cover 14 is provided with through holes 15, and the through holes 15 are arranged correspondingly with the electric valves 12.

[0050] Preferably, the number of the through holes 15 is consistent with the number of the electric valves 12, and the preferred number of the through holes 15 and the electric valves 12 is 3-4 groups.

[0051] Specifically, when the scraper 11 is severely worn and cannot be used normally, the staff can disassemble the circulating tank cover 14 from the top of the circulating tank 13, so as to disassemble the scraper 11 from the transmission assembly, and then replace it, and the disassembly and installation process is relatively simple and convenient.

[0052] In further embodiments, the filter screen 21 is arranged below the through hole 15, and the filter screen 21 is clamped on the top of the limiting frame 20, and the limiting frame 20 is fixedly connected with the inner wall of the circulating tank 13, and the limiting frame 20 is in the form of a circular ring.

[0053] Specifically, in actual use, when the working time of the device reaches the working time set by the timing device 23, the motor 8 will drive the scraper 11 to rotate to scrape the oil dirt on the inner wall of the oil tank 3, and the scraped oil dirt and pollutants will flow out of the electric valve 12 together with the oil through the infiltration channel 502 or the chute 501, and the electric valve 12 will discharge it into the circulating tank 13 through the through hole 15, and the oil in the circulating tank 13 will contact the filter screen 21, and the filter screen 21 will filter out the pollutants in the oil, and on the other hand, the circulating pump 16 will discharge the original oil in the circulating tank 13 into the oil tank 3 through the conveying pipe 18 and the circulating pipe network 19, until the water level of the oil in the oil tank 3 reaches the set height.

[0054] Embodiment 2 This embodiment is a further description of the above-mentioned embodiments. It should be understood that this embodiment includes all the technical features described above and is further described in detail.

[0055] As Figure 1 , Figure 3 andFigure 6 As shown, in a further embodiment, the transmission assembly comprises a transmission frame 9 and a transmission column 901, and the transmission frame 9 is connected with the output end of the motor 8 through the transmission column 901 at the top, and the transmission frame 9 is symmetrically provided with a mounting column 10, and the mounting column 10 is symmetrically arranged on both sides of the transmission column 901.

[0056] In a further embodiment, the scraper 11 is clamped in the clamping groove 1001, and the clamping groove 1001 is formed on the mounting column 10, and the mounting column 10 is arranged through the sliding groove 501.

[0057] Preferably, when the scraper 11 needs to be replaced or cleaned, the staff can manually slide the scraper 11 out from the top of the clamping groove 1001, and the disassembly process is relatively simple.

[0058] Specifically, the motor 8 drives the transmission frame 9 to rotate through the transmission column 901, and the rotating transmission frame 9 drives the scraper 11 to rotate in the sliding groove 501 to scrape off the oil stains adhered to the inner wall of the oil tank 3.

[0059] The terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is a simplified description for the convenience of describing the present application, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the protection scope of the present application.

[0060] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An oil-immersed transformer capable of automatically filtering oil liquid, comprising a base (1) and a circulating tank (13), characterized in that: the top of the base (1) is provided with an oil tank (3), and the oil tank (3) is fixedly connected with the base (1) through a support frame (2); the top of the oil tank (3) is connected with an oil tank cover (4); a bearing plate (5) is fixedly connected inside the oil tank (3); an oil-immersed transformer body (6) is installed on the bearing plate (5); the top of the oil-immersed transformer body (6) penetrates the center position of the oil tank cover (4); the bottom of the bearing plate (5) is fixedly connected with a waterproof base (7); a sliding groove (501) is formed in the bearing plate (5); a motor (8) is arranged in the waterproof base (7); the output end of the motor (8) is connected with a scraper (11) through a transmission assembly; the scraper (11) is in contact with the inner wall of the oil tank (3); an electric valve (12) is connected with the bottom of the oil tank (3); the motor (8), the transmission assembly and the scraper (11) constitute a rotating structure; the scraper (11) is symmetrically arranged in the oil tank (3); the transmission assembly comprises a transmission frame (9) and a transmission column (901); the transmission frame (9) is connected with the output end of the motor (8) through the transmission column (901) at the top; a mounting column (10) is symmetrically arranged on the transmission frame (9); the mounting column (10) is symmetrically arranged on both sides of the transmission column (901); the scraper (11) is clamped in a clamping groove (1001) formed in the mounting column (10); the mounting column (10) penetrates and is arranged in the sliding groove (501); the circulating tank (13) is correspondingly arranged below the oil tank (3); a circulating pump (16) is arranged in the circulating tank (13); the circulating tank (13) is arranged on the top of the base (1); the circulating pump (16) is fixedly connected with one end of a circulating pipe network (19) through a conveying pipeline (18); the other end of the circulating pipe network (19) is fixedly connected with the top of one side surface of the oil tank (3); a filter screen (21) is arranged in the oil tank (3).

2. An oil immersed transformer of claim 1, wherein: A recess (101) is formed in the top of the base (1); the circulating tank (13) is slidably connected in the recess (101); a ball (17) is connected with the bottom of the circulating tank (13).

3. An oil immersed transformer of claim 1, wherein: A control box (22) and a timing device (23) are installed on the outer wall of the oil tank (3); the oil tank (3) and the oil tank cover (4) are detachably connected.

4. An oil immersed transformer of claim 1, wherein: The sliding grooves (501) are symmetrically formed in the bearing plate (5); a plurality of groups of infiltration channels (502) are formed in the bearing plate (5).

5. An oil immersed transformer of claim 1, wherein: The top of the circulating tank (13) is slidably connected with a circulating tank cover (14); a through hole (15) is formed in the circulating tank cover (14); the through hole (15) is correspondingly arranged with the electric valve (12).

6. An oil immersed transformer of claim 1, wherein: The filter screen (21) is arranged below the through hole (15), and the filter screen (21) is clamped on the top of the limiting frame (20) which is fixedly connected to the inner wall of the circulating box (13), and the limiting frame (20) is in the form of a circular ring.

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