Transformer oil circulating and purifying device

Abstract

The utility model discloses a transformer oil liquid circulation purification device, and particularly relates to the technical field of transformers, the transformer oil liquid circulation purification device comprises a box body, a first filter cartridge, a second filter cartridge and a liquid extraction pipe, the upper end of the left side of the box body is provided with a liquid inlet pipe, the first filter cartridge is arranged in an inner cavity of a liquid inlet funnel, and the second filter cartridge is arranged in an inner cavity of the first filter cartridge; the liquid suction pipe is arranged at the right lower end of the box; according to the utility model, through the two filter cartridges which are modularly designed, a user can replace and dismount the filter cartridges according to actual requirements, the filter cartridges are more convenient to mount and dismount, the filter cartridges can be taken out to be cleaned and replaced only by easily taking up the filter cartridges, and the surfaces of the two filter cartridges are smooth and have no dead angles; according to the cleaning device, dirt and impurity accumulation is reduced, the cleaning process is more efficient, the operation steps and time are saved, the circulating filtering effect can be achieved through the liquid pumping pipe, the circulating liquid pump and the liquid feeding pipe, and oil liquid can be effectively prevented from being polluted to different degrees under different working conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, and more specifically, to a transformer oil circulation and purification device. Background Art

[0002] When a transformer oil purification device processes transformer insulating oil, a certain amount of waste oil will be generated. A large amount of pollutants and impurities may be contained in this waste oil. If not recycled, it will cause environmental pollution and waste of resources.

[0003] After retrieval, the existing patent (Publication No.: CN116440581 B) discloses a transformer oil purification method and a transformer oil purification device, including: confirming the operating status of the transformer, including indicators such as current, voltage, and temperature, to ensure within the normal working range; connecting the transformer oil purification device to the inlet and outlet pipelines of the transformer and turning on the main power switch of the transformer oil purification device; the insulating oil enters the transformer oil purification device for treatment; adjusting the speed of the insulating oil entering the transformer oil purification device according to the treatment situation; generating a cleaning response when the liquid level in the transformer oil purification device is abnormal. This transformer oil purification device integrates a waste oil recovery function, which not only realizes the purification treatment of transformer insulating oil but also solves the problems of waste oil pollution and resource waste, and has good application prospects. The inventor found the following problems in the process of implementing this utility model:

[0004] In the existing purification device, since transformer oil is easily affected by impurities and other pollutants during use, it is necessary to filter and purify the oil. However, during filtration, these impurities and pollutants will accumulate on the surface of the baffle during purification. The accumulated impurities will reduce the flow area of the purification device, thereby reducing the filtration efficiency and affecting the purification effect of the oil. During the cleaning process, if the operation is improper, the cleaned impurities will re-enter the oil. Moreover, under different working conditions, the oil will be polluted to different degrees. When the pollutant concentration is relatively high, impurities still exist in the filtered oil, thus affecting the purity of the oil.

[0005] Therefore, a transformer oil circulation and purification device is proposed to solve the above problems. Summary of the Utility Model

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a transformer oil circulation and purification device to solve the problems raised in the above background art.

[0007] To achieve the above object, the present utility model provides the following technical solutions: A transformer oil circulation purification device, comprising a box body, a first filter cylinder, a second filter cylinder and a liquid extraction pipe. An inlet pipe is provided at the upper end of the left side of the box body, a liquid inlet funnel is arranged at the upper end of the box body, the first filter cylinder is arranged in the inner cavity of the liquid inlet funnel, the second filter cylinder is arranged in the inner cavity of the first filter cylinder, and the liquid extraction pipe is arranged at the lower end of the right side of the box body;

[0008] A fixing frame is installed at the edge of the upper end of the first filter cylinder, and a primary filter screen is installed in the inner cavity of the lower end of the first filter cylinder. A limiting groove is provided at the upper end of the fixing frame. An installation frame is installed at the edge of the upper end of the second filter cylinder, a limiting ring is provided at the edge of the lower end of the installation frame, and a secondary filter screen is installed in the inner cavity of the lower end of the second filter cylinder.

[0009] Preferably, a motor is installed at the center of the left side of the box body, a transmission rod is arranged in the inner cavity of the box body, stirring blades are arranged on the outer surface of the transmission rod, and three groups of stirring blades are provided.

[0010] Preferably, a circulating liquid pump is arranged above the liquid extraction pipe, a liquid delivery pipe is arranged above the circulating liquid pump, a support rod is arranged at the upper right side of the box body, and a connecting frame is arranged on one side of the support rod. The end of the connecting frame away from the support rod is sleeved on the outer surface of the liquid delivery pipe.

[0011] Preferably, the inner surface of the liquid inlet funnel is in contact with the outer surface of the first filter cylinder, the inner surface of the first filter cylinder is in contact with the outer surface of the second filter cylinder, and the limiting ring is in contact with the limiting groove.

[0012] Preferably, an electric drain valve is provided at the center of the lower end of the box body, and support legs are provided at the four corners of the lower end of the box body.

[0013] Preferably, the positions among the three groups of stirring blades are arranged at equal intervals, and the transmission rod is connected to the output end of the motor.

[0014] Preferably, the input end of the circulating liquid pump is connected to the liquid extraction pipe, and the output end of the circulating liquid pump is connected to the liquid delivery pipe.

[0015] The technical effects and advantages of the present utility model:

[0016] 1. Compared with the prior art, the transformer oil circulation purification device enables users to replace and disassemble according to actual needs through two filter cartridges with modular design, and makes the installation and disassembly of the filter cartridges more convenient. One can simply pick up the filter cartridge to take it out for cleaning and replacement. Moreover, the surfaces of the two filter cartridges are smooth and free of dead corners, reducing the accumulation of dirt and impurities, making the cleaning process more efficient, saving operation steps and time.

[0017] 2. Compared with the prior art, the transformer oil circulation purification device can achieve the effect of circulating filtration through the liquid suction pipe, circulation liquid pump and liquid delivery pipe. It can effectively avoid the oil being contaminated to varying degrees under different working conditions, and can be adjusted in real time according to needs to ensure that the oil always maintains the best state and the purity of the oil, thereby improving the insulation performance and heat conduction efficiency of the transformer and reducing the risk of failures. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic front sectional view of the present utility model.

[0019] Figure 2 It is a schematic three-dimensional structure view of the first filter cartridge of the present utility model.

[0020] Figure 3 It is a schematic three-dimensional exploded structure view of the first filter cartridge and the second filter cartridge of the present utility model.

[0021] Figure 4 It is a schematic bottom view structure view of the first filter cartridge of the present utility model.

[0022] Figure 5 For the present utility model Figure 1 The partial enlarged structure view at position A.

[0023] Reference numerals are: 1. Box body; 2. Liquid inlet pipe; 3. Liquid inlet funnel; 4. First filter cartridge; 5. Primary filter screen; 6. Fixed frame; 7. Limit groove; 8. Second filter cartridge; 9. Mounting frame; 10. Limit ring; 11. Secondary filter screen; 12. Liquid suction pipe; 13. Circulation liquid pump; 14. Liquid delivery pipe; 15. Support rod; 16. Connecting frame; 17. Transmission rod; 18. Motor; 19. Stirring blade; 20. Electric drain valve; 21. Support leg. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Example 1

[0026] As shown in the attached Figures 1 to 5 A transformer oil circulation purification device, including a box body 1, a first filter cylinder 4, a second filter cylinder 8 and a liquid extraction pipe 12. An inlet pipe 2 is opened at the upper end of the left side of the box body 1. An inlet funnel 3 is arranged at the upper end of the box body 1. The first filter cylinder 4 is arranged in the inner cavity of the inlet funnel 3. The second filter cylinder 8 is arranged in the inner cavity of the first filter cylinder 4. The liquid extraction pipe 12 is arranged at the lower end of the right side of the box body 1. A circulating liquid pump 13 is arranged above the liquid extraction pipe 12. A liquid delivery pipe 14 is arranged above the circulating liquid pump 13;

[0027] A fixing frame 6 is installed at the edge of the upper end of the first filter cylinder 4, and a primary filter screen 5 is installed in the inner cavity of the lower end of the first filter cylinder 4. A limiting groove 7 is opened at the upper end of the fixing frame 6. An installation frame 9 is installed at the edge of the upper end of the second filter cylinder 8. A limiting ring 10 is opened at the edge of the lower end of the installation frame 9. A secondary filter screen 11 is installed in the inner cavity of the lower end of the second filter cylinder 8.

[0028] Wherein: when it is necessary to purify the oil liquid, the inlet pipe 2 is connected to the oil liquid channel of the transformer, and then enters the inner cavity of the box body 1. Subsequently, the liquid extraction pipe 12 uses the circulating liquid pump 13 to extract the oil liquid. After being sent into the liquid delivery pipe 14, it enters the first filter cylinder 4 and the second filter cylinder 8 in sequence for filtration, which can realize multi-stage filtration. The primary filter screen 5 and the secondary filter screen 11 shield particles of different sizes respectively, ensuring that the liquid oil is purified more thoroughly. The fixing frame 6 is sleeved on the upper end of the inlet funnel 3, so that the first filter cylinder 4 will not be displaced during filtration. And the second filter cylinder 8 in the inner cavity can abut against the fixing frame 6 through the upper installation frame 9. Subsequently, through the cooperation of the lower limiting ring 10 and the limiting groove 7, it can ensure that the second filter cylinder 8 is installed in the inner cavity of the first filter cylinder 4 without displacement, thus realizing two independent filtration modules. When it is necessary to disassemble and take out, only need to take out the first filter cylinder 4 and the second filter cylinder 8 in sequence respectively, then it can be conveniently disassembled and replaced, realizing the modular installation effect, and cleaning and maintaining the internal primary filter screen 5 and secondary filter screen 11.

[0029] Example 2

[0030] On the basis of Example 1, the solution in Example 1 is further refined and introduced in combination with the following specific working methods, as Figures 1 to 5 shown, see the following description for details:

[0031] As a preferred embodiment, a motor 18 is installed at the center of the left side of the casing 1, a transmission rod 17 is provided in the inner cavity of the casing 1, a stirring blade 19 is provided on the outer surface of the transmission rod 17, three groups of stirring blades 19 are provided, and the positions of the three groups of stirring blades 19 are arranged in an equidistant manner, and the transmission rod 17 is connected to the output end of the motor 18; further, the motor 18 drives the transmission rod 17 to rotate, and the design of the three groups of stirring blades 19 being equidistantly spaced on the outer surface of the transmission rod 17 can drive the oil to be evenly stirred during rotation, thereby improving the mixing efficiency.

[0032] As a preferred embodiment, a support rod 15 is provided on the right side of the upper end of the box body 1, a support rod 15 is provided on the right side of the upper end of the box body 1, a connecting frame 16 is provided on one side of the support rod 15, and one end of the connecting frame 16 away from the support rod 15 is sleeved on the outer surface of the liquid delivery pipe 14; further, the support rod 5 provides a supporting function for the connecting frame 16, and the other end of the connecting frame 16 is connected to the liquid delivery pipe 14, thereby fixing the liquid delivery pipe 14 above the box body 1.

[0033] As a preferred embodiment, the inner surface of the liquid inlet funnel 3 abuts against the outer surface of the first filter cartridge 4, the inner surface of the first filter cartridge 4 abuts against the outer surface of the second filter cartridge 8, and the limiting ring 10 abuts against the limiting groove 7; further, the first filter cartridge 4 is installed in the inner cavity of the liquid inlet funnel 3, and the second filter cartridge 8 is installed in the inner cavity of the first filter cartridge 4.

[0034] As a preferred embodiment, an electric drain valve 20 is provided at the center of the lower end of the box body 1, and support legs 21 are provided at the four corners of the lower end of the box body 1; further, the electric drain valve 20 can be opened through the control of the control system to ensure the discharge of the filtered oil in the box body 1, and the support legs 21 bear the weight of the box body 1 for support.

[0035] As a preferred embodiment, the input end of the circulating liquid pump 13 is connected to the liquid extraction pipe 12, and the output end of the circulating liquid pump 13 is connected to the liquid delivery pipe 14; further, the circulating liquid pump 13 is connected above the liquid extraction pipe 12 to guide the liquid to be extracted from the box 1, ensuring that the liquid can be quickly delivered to the liquid delivery pipe 14 after being extracted from the liquid extraction pipe 12, forming a liquid circulation system, ensuring the removal and redistribution of the liquid, and delivering the liquid output by the circulating liquid pump 13 to the liquid inlet funnel 3, which is responsible for the redistribution of the liquid and ensures the continuity of the filtration process.

[0036] The working process of the utility model is as follows: When it is necessary to purify the oil fluid, the liquid inlet pipe 2 is connected to the oil fluid channel of the transformer, and then enters the inner cavity of the box body 1. The supporting legs 21 bear the weight of the box body 1 for support. The motor 18 drives the transmission rod 17 to rotate, thereby driving the three groups of stirring blades 19 to stir the oil fluid to prevent the impurities in the oil fluid from precipitating. Subsequently, the liquid extraction pipe 12 uses the circulating liquid pump 13 to extract the oil fluid. After the oil fluid is sent into the liquid delivery pipe 14, it will be discharged from the upper part of the second filter cartridge 8. The support rod 15 provides the supporting function for the connecting frame 16. The other end of the connecting frame 16 is connected to the liquid delivery pipe 14, thereby fixing the liquid delivery pipe 14 above the box body 1;

[0037] After filtration, it enters the first filter cartridge 4 for secondary filtration. The primary filter screen 5 and the secondary filter screen 11 shield particles of different sizes respectively to ensure that the liquid oil is purified more thoroughly. The fixing frame 6 is sleeved on the upper end of the liquid inlet funnel 3 to limit the first filter cartridge 4. And the second filter cartridge 8 in the inner cavity can abut against the fixing frame 6 through the upper mounting frame 9, thereby stably installing the second filter cartridge 8 in the inner cavity of the first filter cartridge 4. Subsequently, it is limited by the cooperation of the lower limiting ring 10 and the limiting groove 7, so that the two independent filter modules are stacked and installed. When it is necessary to disassemble and take out, just take out the second filter cartridge 8 and the first filter cartridge 4 in sequence, and then it can be conveniently disassembled and replaced to achieve the modular installation effect, and the primary filter screen 5 and the secondary filter screen 11 inside can be cleaned and maintained. After the filtration is completed, the electric drain valve 20 will be controlled by the control system to open, thereby discharging the oil fluid. The above is the working principle of this kind of transformer oil fluid circulating purification device.

Claims

1. A transformer oil circulation purification device, comprising a box body (1), a first filter cartridge (4), a second filter cartridge (8) and a liquid extraction pipe (12), characterized in that: At the upper end of the left side of the box body (1), a liquid inlet pipe (2) is provided. At the upper end of the box body (1), a liquid inlet funnel (3) is arranged. The first filter cylinder (4) is arranged in the inner cavity of the liquid inlet funnel (3). The second filter cylinder (8) is arranged in the inner cavity of the first filter cylinder (4). The liquid extraction pipe (12) is arranged at the lower end of the right side of the box body (1). At the edge of the upper end of the first filter cylinder (4), a fixing frame (6) is installed. And in the inner cavity of the lower end of the first filter cylinder (4), a primary filter screen (5) is installed. At the upper end of the fixing frame (6), a limiting groove (7) is provided. At the edge of the upper end of the second filter cylinder (8), a mounting frame (9) is installed. At the edge of the lower end of the mounting frame (9), a limiting ring (10) is provided. In the inner cavity of the lower end of the second filter cylinder (8), a secondary filter screen (11) is installed.

2. The transformer oil circulation and purification device according to claim 1, characterized in that: At the center of the left side of the box body (1), a motor (18) is installed. In the inner cavity of the box body (1), a transmission rod (17) is arranged. On the outer surface of the transmission rod (17), stirring blades (19) are provided. There are three groups of the stirring blades (19).

3. The transformer oil circulation and purification device according to claim 1, characterized in that: Above the liquid extraction pipe (12), a circulating liquid pump (13) is provided. Above the circulating liquid pump (13), a liquid delivery pipe (14) is provided. At the upper right side of the box body (1), a support rod (15) is arranged. On one side of the support rod (15), a connecting frame (16) is provided. The end of the connecting frame (16) away from the support rod (15) is sleeved on the outer surface of the liquid delivery pipe (14).

4. A transformer oil circulation and purification device according to claim 1, characterized in that: The inner surface of the liquid inlet funnel (3) is in contact with the outer surface of the first filter cylinder (4). The inner surface of the first filter cylinder (4) is in contact with the outer surface of the second filter cylinder (8). The limiting ring (10) is in contact with the limiting groove (7).

5. The transformer oil circulation and purification device according to claim 1, characterized in that: At the center of the lower end of the box body (1), an electric drain valve (20) is provided. At the four corners of the lower end of the box body (1), support legs (21) are provided.

6. The transformer oil circulation and purification device according to claim 2, characterized in that: The positions among the three groups of the stirring blades (19) are arranged at equal intervals. The transmission rod (17) is connected to the output end of the motor (18).

7. The transformer oil circulation and purification device according to claim 3, characterized in that: The input end of the circulating liquid pump (13) is connected to the liquid extraction pipe (12), and the output end of the circulating liquid pump (13) is connected to the liquid delivery pipe (14).

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