Filtering device for preparing environment-friendly transformer insulating oil

Abstract

The utility model discloses a filtering device for preparing environment-friendly transformer insulating oil. Relates to the field of transformer insulating oil preparation. Comprising a shell and a filter tank arranged in the shell, a feeding pipe is arranged at the top of the shell, a discharging pipe is arranged at the bottom of the shell, the filter tank is arranged between the feeding pipe and the discharging pipe, a partition plate is arranged on the inner wall of the shell and located above the filter tank, and penetrating holes and mounting holes are formed in the partition plate at intervals; a through hole is formed in the filter tank, the through hole is located below the feeding pipe, a filter bag is arranged in the mounting hole, and when the filter tank is taken out and cleaned, the through hole is in a closed state, and the filter bag is used for filtering the insulating oil. According to the device, the filter tank or the filter bag can be recycled and cleaned under the condition that the input of the insulating oil of the transformer is not stopped, and the continuity of the filtering operation is effectively improved.

Description

Technical Field

[0001] This application relates to the field of transformer insulating oil preparation, specifically to a filtration device for preparing environmentally friendly transformer insulating oil. Background Technology

[0002] Transformer insulating oil is a low-viscosity oil mainly used in oil-filled electrical equipment such as transformers, reactors, instrument transformers, bushings, and oil switches. The main functions of transformer insulating oil are, on the one hand, to provide insulation between transformer windings, between windings and the iron core and the oil tank; on the other hand, to dissipate heat from the transformer iron core and windings when the transformer oil is heated and convection occurs.

[0003] During the preparation of transformer insulating oil, dust or debris may be mixed in, which can affect the insulating effect of the oil. Therefore, the transformer oil needs to be filtered before filling. In existing technologies, one or more filter screens are generally used to filter the transformer insulating oil to remove impurities.

[0004] However, after filtering for a period of time and accumulating a large amount of debris on the filter screen, it is necessary to stop pouring the transformer insulating oil before the filter screen can be cleaned or replaced. This results in poor continuity of the filtration operation and low filtration efficiency. Utility Model Content

[0005] To overcome the shortcomings of the prior art, this application provides a filtration device for preparing environmentally friendly transformer insulating oil.

[0006] This application adopts the following technical solution: a filtration device for preparing environmentally friendly transformer insulating oil, including a shell and a filter tank disposed in the shell, the top of the shell is provided with an inlet pipe and the bottom is provided with an outlet pipe, the filter tank is disposed between the inlet pipe and the outlet pipe, and a partition is provided on the inner wall of the shell above the filter tank, the partition being provided with perforations and mounting holes at intervals;

[0007] The perforation is located below the feed pipe, and a filter bag is installed inside the mounting hole. When the filter tank is removed and cleaned, the perforation is in a closed state and the filter bag is used to filter the insulating oil.

[0008] Optionally, the inner diameter of the perforation is larger than the inner diameter of the feed pipe, and the inner edge of the perforation is located inside the inner edge of the filter tank.

[0009] Optionally, a first limiting ring and a motor are provided below the partition. A rotating plate is engaged between the first limiting ring and the partition. The motor is used to drive the rotating plate to rotate, and the rotating plate can cover the perforation.

[0010] Optionally, the bottom of the partition is provided with a bracket, one end of the first limiting ring is connected to the inner wall of the housing, the other end of the first limiting ring is connected to the bracket, and the motor passes through the inner side of the first limiting ring and is connected to the bracket.

[0011] Optionally, the mounting hole is stepped, wider at the top and narrower at the bottom, and the filter bag has a mounting ring at the bag opening. The mounting ring is hollow and T-shaped. The filter bag is fitted onto the lower outer wall of the mounting ring, and the upper part of the mounting ring is adapted to fit inside the mounting hole.

[0012] Optionally, the filter bag is fitted with multiple elastic ropes on its outer side. The elastic ropes are looped and used to fix the filter bag.

[0013] Optionally, the housing is provided with a second limiting ring, the outer wall of the second limiting ring is connected to the inner wall of the housing, and the filter groove is disposed on the second limiting ring and can slide on the second limiting ring.

[0014] Optionally, the outer wall of the housing is provided with a first pick-up and drop-off channel and a second pick-up and drop-off channel, the first pick-up and drop-off channel being used to remove the filter bag from the housing, and the second pick-up and drop-off channel being used to remove the filter tank from the housing.

[0015] In summary, this application has the following beneficial effects: by driving the rotating plate with an electric motor, the perforation can be switched between the covered and open states, thereby allowing transformer insulating oil to pass through the perforation and be filtered through the filter tank, or pass through the mounting hole and be filtered through the filter bag. In this way, the filter tank or filter bag can be recycled and cleaned without stopping the input of transformer insulating oil, effectively improving the continuity of the filtration operation. Attached Figure Description

[0016] Figure 1 This is a structural diagram and reference for the operational status of this application. Figure 1 ;

[0017] Figure 2 This is a reference to the action status of this application. Figure 2 ;

[0018] In the diagram: 1. Shell; 11. Feed pipe; 12. Discharge pipe; 13. Second limiting ring; 14. First pick-up and drop channel; 15. Second pick-up and drop channel; 2. Filter tank; 3. Partition plate; 31. Perforation; 32. Mounting hole; 33. First limiting ring; 34. Motor; 35. Rotating plate; 36. Support; 4. Filter bag; 41. Mounting ring; 42. Elastic rope. Detailed Implementation

[0019] The present application will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0020] like Figure 1-2 As shown, a filtration device for preparing environmentally friendly transformer insulating oil includes a housing 1 and a filter tank 2 disposed within the housing 1. The housing 1 has an inlet pipe 11 at the top and an outlet pipe 12 at the bottom. The filter tank 2 is disposed between the inlet pipe 11 and the outlet pipe 12. A partition 3 is provided on the inner wall of the housing 1 above the filter tank 2. The partition 3 has perforations 31 and mounting holes 32 spaced apart. The perforations 31 are located below the inlet pipe 11, and the mounting holes 32 contain filter bags 4. When the filter tank 2 is removed and cleaned, the perforations 31 are closed and the filter bags 4 are used to filter the insulating oil.

[0021] The filter tank 2 and filter bag 4 have the same filtration accuracy. Initially, the perforation 31 is unobstructed, allowing transformer insulating oil to pass through the perforation 31, through the partition 3, and into the filter tank 2 for filtration. When the filter tank 2 accumulates a large amount of debris and needs cleaning, the perforation 31 can be closed. The transformer insulating oil will then flow onto the partition 3 and eventually into the filter bag 4 for filtration. This allows the filter tank 2 to be removed from the housing 1, achieving efficient and continuous filtration of the transformer insulating oil without changing the feeding and discharging methods.

[0022] The inner diameter of the perforation 31 is larger than the inner diameter of the feed pipe 11, and the inner edge of the perforation 31 is located inside the inner edge of the filter tank 2. This ensures that when the perforation 31 is in the open state, the transformer insulating oil can pass through the perforation 31 and fall completely into the filter tank 2, thus ensuring that the transformer insulating oil can be reliably filtered.

[0023] Below the partition 3, there is a first limiting ring 33 and a motor 34. A rotating plate 35 is engaged between the first limiting ring 33 and the partition 3. The motor 34 drives the rotating plate 35 to rotate, and the rotating plate 35 can cover the perforation 31. Under the limiting action of the first limiting ring 33 and the partition 3, the rotating plate 35 can be movably set. Thus, driven by the motor 34, the rotating plate 35 can rotate around the output shaft of the motor 34, thereby covering and opening the perforation 31, and thus adjusting the drop point of the transformer insulating oil. Furthermore, the rotating plate 35 and the output shaft of the motor 34 can be eccentrically set to ensure that the rotation of the rotating plate 35 will not interfere with the filter bag 4, preventing damage to the filter bag 4.

[0024] A bracket 36 is provided at the bottom of the partition 3. One end of the first limiting ring 33 is connected to the inner wall of the housing 1, and the other end of the first limiting ring 33 is connected to the bracket 36. The motor 34 passes through the inner side of the first limiting ring 33 and is connected to the bracket 36. The bracket 36 can fix the first limiting ring 33 and the motor 34 at the same time, ensuring that the rotating plate 35 can rotate reliably under the drive of the motor 34.

[0025] The mounting hole 32 is stepped, wider at the top and narrower at the bottom. A mounting ring 41, hollow in the shape of a T, is provided at the opening of the filter bag 4. The filter bag 4 is fitted onto the lower outer wall of the mounting ring 41, and the upper part of the mounting ring 41 is fitted into the mounting hole 32. The filter bag 4 and the mounting ring 41 are detachably connected. Because the mounting hole 32 is stepped and the mounting ring 41 fits into it, the filter bag 4 can pass through the mounting hole 32 while the mounting ring 41 cannot. This allows for quick placement and removal of the filter bag 4, facilitating its recycling and cleaning.

[0026] Multiple elastic ropes 42 are fitted around the outside of the filter bag 4. The elastic ropes 42 are looped and used to fix the filter bag 4. Under the elastic force of the elastic ropes 42, the filter bag 4 can be reliably fitted onto the outer wall of the mounting ring 41.

[0027] The housing 1 is provided with a second limiting ring 13. The outer wall of the second limiting ring 13 is connected to the inner wall of the housing 1. The filter tank 2 is disposed on the second limiting ring 13 and can slide on the second limiting ring 13. The second limiting ring 13 can limit and guide the installation tank, making it easy to quickly put on and take off the filter tank 2.

[0028] The outer wall of the housing 1 is provided with a first access channel 14 and a second access channel 15. The first access channel 14 is used to remove the filter bag 4 from the housing 1, and the second access channel 15 is used to remove the filter tank 2 from the housing 1. Both the first access channel 14 and the second access channel 15 can be opened and closed independently, which facilitates the removal of the filter bag 4 and the filter tank 2 while preventing the transformer insulating oil from leaking out through the first access channel 14 and the second access channel 15.

[0029] The above embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of protection of this application. Any non-substantial changes and substitutions made by those skilled in the art based on this application shall fall within the scope of protection claimed by this application.

Claims

1. A filtration device for preparing environmentally friendly transformer insulating oil, comprising a housing (1) and a filter tank (2) disposed within the housing (1), wherein the housing (1) has an inlet pipe (11) at the top and an outlet pipe (12) at the bottom, and the filter tank (2) is disposed between the inlet pipe (11) and the outlet pipe (12), characterized in that, A partition (3) is provided on the inner wall of the housing (1) and above the filter tank (2). The partition (3) is provided with perforations (31) and mounting holes (32) at intervals. The perforation (31) is located below the feed pipe (11), and a filter bag (4) is provided in the mounting hole (32). When the filter tank (2) is removed and cleaned, the perforation (31) is in a closed state and the filter bag (4) is used to filter the insulating oil.

2. The filtration device for preparing environmentally friendly transformer insulating oil according to claim 1, characterized in that, The inner diameter of the perforation (31) is larger than the inner diameter of the feed pipe (11), and the inner edge of the perforation (31) is located inside the inner edge of the filter tank (2).

3. The filtration device for preparing environmentally friendly transformer insulating oil according to claim 1, characterized in that, Below the partition (3) is a first limiting ring (33) and a motor (34). A rotating plate (35) is engaged between the first limiting ring (33) and the partition (3). The motor (34) is used to drive the rotating plate (35) to rotate. The rotating plate (35) can cover the perforation (31).

4. The filtration device for preparing environmentally friendly transformer insulating oil according to claim 3, characterized in that, The bottom of the partition (3) is provided with a bracket (36), one end of the first limiting ring (33) is connected to the inner wall of the housing (1), the other end of the first limiting ring (33) is connected to the bracket (36), and the motor (34) passes through the inner side of the first limiting ring (33) and is connected to the bracket (36).

5. The filtration device for preparing environmentally friendly transformer insulating oil according to claim 3, characterized in that, The mounting hole (32) is stepped, with the top larger than the bottom. The filter bag (4) has a mounting ring (41) at the bag opening. The mounting ring (41) is hollow and T-shaped. The filter bag (4) is fitted on the lower outer wall of the mounting ring (41). The upper part of the mounting ring (41) is adapted to be located inside the mounting hole (32).

6. The filtration device for preparing environmentally friendly transformer insulating oil according to claim 5, characterized in that, The filter bag (4) is fitted with multiple elastic ropes (42) on its outer side. The elastic ropes (42) are looped and are used to fix the filter bag (4).

7. The filtration device for preparing environmentally friendly transformer insulating oil according to claim 5, characterized in that, The housing (1) is provided with a second limiting ring (13), the outer wall of the second limiting ring (13) is connected to the inner wall of the housing (1), and the filter groove (2) is provided on the second limiting ring (13) and can slide on the second limiting ring (13).

8. The filtration device for preparing environmentally friendly transformer insulating oil according to claim 7, characterized in that, The outer wall of the housing (1) is provided with a first pick-up and put-out channel (14) and a second pick-up and put-out channel (15). The first pick-up and put-out channel (14) is used to take the filter bag (4) out of the housing (1), and the second pick-up and put-out channel (15) is used to take the filter tank (2) out of the housing (1).

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