Reduced pressure distillation device for preparing transformer insulating oil

Abstract

The utility model discloses a reduced pressure distillation device for preparing transformer insulating oil, and relates to the technical field of reduced pressure distillation equipment, the reduced pressure distillation device comprises a main body, one end of the main body is fixedly connected with a first butt joint ball cavity, and the inner side of the first butt joint ball cavity is rotatably connected with a first butt joint ball head; and one end of the first butt joint ball head is fixedly connected with a conveying pipe. When the angle is adjusted, the conveying pipe is rotated, the first butt-joint ball head on the conveying pipe can rotate in the designated direction along the first butt-joint ball cavity so as to drive the conveying pipe to rotate by a certain angle, and the adjusted position of the conveying pipe is fixed through the positioning arc plate and the positioning nut; then a second butt-joint ball head can rotate along a second butt-joint ball cavity by rotating a connecting pipe, so that the connecting pipe is driven to rotate by a certain angle and then is clamped with a connecting opening of the fractionating chamber, the angle of the feeding pipe is convenient to adjust, and connectors at different height positions on the fractionating tower are convenient to mount and connect; and the distillation kettle can be conveniently and quickly mounted and butted on the fractionating tower.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum distillation equipment, in particular to a vacuum distillation device for preparing transformer insulating oil. Background Technique

[0002] Insulating oil, also known as transformer oil and shed oil, refers to a fractionation product of petroleum. Its main components include compounds such as alkanes, cycloalkane saturated hydrocarbons, and aromatic unsaturated hydrocarbons. It is a light yellow transparent liquid. During the production process of insulating oil, a vacuum distillation device is required to separate and purify the production raw materials.

[0003] The patent publication number CN115105849A discloses a vacuum distillation device and method for waste mineral oil, including a box body, a distillation kettle and a pressure control box located inside the box body. A control panel is also installed on the box body, and a discharge pipe and a feed pipe are arranged on the distillation kettle.

[0004] In the vacuum distillation devices in the above-mentioned comparative documents and existing vacuum distillation devices, the discharge pipes provided on the distillation kettle are mostly fixed to the device main body, with non-adjustable angles. They can only be installed and connected to auxiliary devices that match the height, with relatively large limitations. During the installation process, the positions between the connecting ports on the auxiliary device and the discharge pipe need to be adjusted multiple times. Whether the auxiliary device is too high or too low will affect the connection effect between the discharge pipe and the auxiliary device, resulting in a more cumbersome installation process and a lower installation efficiency. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problem that in existing vacuum distillation devices, the discharge pipes provided on the distillation kettle are mostly fixed to the device main body, with non-adjustable angles. They can only be installed and connected to auxiliary devices that match the height, with relatively large limitations. During the installation process, the positions between the connecting ports on the auxiliary device and the discharge pipe need to be adjusted multiple times. Whether the auxiliary device is too high or too low will affect the connection effect between the discharge pipe and the auxiliary device, resulting in a more cumbersome installation process and a lower installation efficiency, and to provide a vacuum distillation device for preparing transformer insulating oil.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A vacuum distillation device for preparing transformer insulating oil, including a main body. One end of the main body is fixedly connected with a first docking ball cavity, the inner side of the first docking ball cavity is rotatably connected with a first docking ball head, one end of the first docking ball head is fixedly connected with a conveying pipe, one end of the conveying pipe is fixedly connected with a second docking ball cavity, the inner side of the second docking ball cavity is rotatably connected with a second docking ball head, and one end of the second docking ball head is fixedly connected with a connecting pipe.

[0007] As a further solution of the utility model: a connection cavity opening is provided inside the first docking ball cavity, and a drainage block is fixedly connected above and below one end of the connection cavity opening.

[0008] As a further solution of the utility model: a receiving arc cavity is provided in the wall cavity of the inner wall of the first docking ball cavity, and a positioning arc plate is slidably connected inside the receiving arc cavity.

[0009] As a further solution of the utility model: one end of the positioning arc plate is fixedly connected to the outer surface at the connection position of the conveying pipe and the first docking ball head, and a positioning nut is provided at the top of the first docking ball cavity.

[0010] As a further solution of the utility model: one end of the first docking ball cavity is fixedly connected with a first elastic rubber sleeve, the middle part of the first elastic rubber sleeve is fixedly connected to the outer surface of the conveying pipe, and the first elastic rubber sleeve is located outside the positioning arc plate.

[0011] As a further solution of the utility model: one end of the second docking ball cavity is fixedly connected with a second elastic rubber sleeve, and the middle part of the second elastic rubber sleeve is fixedly connected to the outer surface of the connecting pipe.

[0012] As a further solution of the utility model: the bottom end of the positioning nut is clamped with the positioning arc plate, a positioning slot is provided at the connection position of the positioning arc plate and the positioning nut, and the positioning nut fixes the adjusted position of the positioning arc plate through the positioning slot.

[0013] Compared with the prior art, the beneficial effects of the utility model are: it is convenient to adjust the angle of the feeding pipe, convenient to install and connect the interfaces at different height positions on the fractionating tower, convenient to quickly install and dock the distillation kettle to the fractionating tower, and convenient to clean the slag on the inner wall of the distillation kettle.

[0014] 1. By providing the second docking ball head, the second docking ball cavity, the first docking ball head, the first docking ball cavity, the positioning arc plate and the positioning nut, when adjusting the angle, rotate the conveying pipe, and the first docking ball head fixed at one end of the conveying pipe will rotate a certain angle along the first docking ball cavity in a specified direction, thereby driving the conveying pipe to rotate a certain angle. The adjusted position of the conveying pipe is fixed by the positioning arc plate and the positioning nut. Then rotate the connecting pipe, and the second docking ball head will rotate in the specified reverse direction along the second docking ball cavity, thereby driving the connecting pipe to rotate a certain angle and then be connected and clamped with the fractionation chamber. The connecting pipe and the fractionation chamber are fixed together by nuts, which facilitates adjusting the angle of the feeding pipe, facilitates installing and connecting the interfaces at different height positions on the fractionating tower, and facilitates quickly installing and docking the distillation kettle to the fractionating tower.

[0015] 2. By setting the scraper and the slag collection filter cavity, during cleaning, the motor drives the scraper to rotate along the inner wall of the main body through the stirring rod to scrape off the slag adhering to the inner wall. The scraped slag enters the slag collection filter cavity under the action of the first guiding block and the second guiding block. When the cleaning is completed, the staff takes out the slag collection filter cavity to clean the slag inside, which facilitates the cleaning of the slag on the inner wall of the distillation kettle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic cross-sectional structure view of the front view of the present utility model;

[0017] Figure 2 is a schematic connection structure view of the three-dimensional view of the first docking ball head and the connecting pipe 8 of the present utility model;

[0018] Figure 3 For the present utility model Figure 1 is a schematic structure view of the enlarged view of part A in the present utility model;

[0019] Figure 4 is a schematic structure view of the top view of the scraper of the present utility model.

[0020] In the figure: 1. Main body; 2. Motor; 3. Stirring rod; 4. Scraper; 5. Slag collection filter cavity; 6. Delivery pipe; 7. Second docking ball head; 8. Connecting pipe; 9. Second elastic rubber sleeve; 10. Second docking ball cavity; 11. Positioning arc plate; 12. First docking ball head; 13. First docking ball cavity; 14. Receiving arc cavity; 15. Drainage block; 16. Connecting cavity opening; 17. Positioning nut; 18. First elastic rubber sleeve; 19. First guiding block; 20. Second guiding block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1 to 4, in the embodiment of the present utility model, a vacuum distillation device for preparing transformer insulating oil includes a main body 1. One end of the main body 1 is fixedly connected with a first docking ball cavity 13. A first docking ball head 12 is rotatably connected to the inner side of the first docking ball cavity 13. One end of the first docking ball head 12 is fixedly connected with a conveying pipe 6. One end of the conveying pipe 6 is fixedly connected with a second docking ball cavity 10. A second docking ball head 7 is rotatably connected to the inner side of the second docking ball cavity 10. One end of the second docking ball head 7 is fixedly connected with a connecting pipe 8. A connection cavity opening 16 is formed in the inner side of the first docking ball cavity 13. A drainage block 15 is fixedly connected above and below one end of the connection cavity opening 16. A receiving arc cavity 14 is formed in the wall cavity of the inner wall of the first docking ball cavity 13. A positioning arc plate 11 is slidably connected to the inner side of the receiving arc cavity 14. One end of the positioning arc plate 11 is fixedly connected to the outer surface of the connection position of the conveying pipe 6 and the first docking ball head 12. A positioning nut 17 is arranged at the top of the first docking ball cavity 13. One end of the first docking ball cavity 13 is fixedly connected with a first elastic rubber sleeve 18. The middle part of the first elastic rubber sleeve 18 is fixedly connected to the outer surface of the conveying pipe 6. The first elastic rubber sleeve 18 is located outside the positioning arc plate 11. One end of the second docking ball cavity 10 is fixedly connected with a second elastic rubber sleeve 9. The middle part of the second elastic rubber sleeve 9 is fixedly connected to the outer surface of the connecting pipe 8. The bottom end of the positioning nut 17 is clamped with the positioning arc plate 11. A positioning card slot is formed at the connection position of the positioning arc plate 11 and the positioning nut 17. The positioning nut 17 fixes the adjusted position of the positioning arc plate 11 through the positioning card slot.

[0023] In this embodiment: When adjusting the angle of the feed pipe, determine whether the docking pipe on the fractionation chamber is above or below the feed pipe according to observation, and then push the conveying pipe 6 in the determined direction. The first docking ball head 12 fixedly connected to one end of the conveying pipe 6 will rotate a certain angle along the connecting cavity opening 16 opened on the inner side of the first docking ball cavity 13 in the direction of the docking port. During the rotation, the positioning arc plate 11 away from the direction of the docking port driven by the conveying pipe 6 will slide out a specified length from the corresponding receiving arc cavity 14, and will push the positioning arc plate 11 near the direction of the docking port of the conveying pipe 6 to slide into the corresponding receiving arc cavity 14 by a specified length. Then, the positioning nut 17 is snapped into the positioning card slot opened on the positioning arc plate 11 to fix the adjusted angle of the conveying pipe 6. If the docking port is parallel to the ground, the connecting pipe 8 also needs to be rotated so that the second docking ball head 7 slides a certain angle in the second docking ball cavity 10. When the connecting pipe 8 is parallel to the docking port, stop rotating the connecting pipe 8, and connect the connecting pipe 8 to the docking port through a nut. Since the first elastic rubber sleeve 18 and the second elastic rubber sleeve 9 can generate elastic deformation, no matter which direction the conveying pipe 6 and the connecting pipe 8 rotate, the joints between the first docking ball cavity 13 and the first docking ball head 12, and the joints between the second docking ball cavity 10 and the second docking ball head 7 are in a sealed state, which is convenient for adjusting the angle of the feed pipe, convenient for installing and connecting the interfaces at different height positions on the fractionating tower, and convenient for quickly installing and docking the distillation kettle to the fractionating tower.

[0024] Please refer specifically to Figure 1 , a motor 2 is fixedly connected to the middle of the top of the main body 1. The output end of the motor 2 is fixedly connected to a stirring rod 3. One end of the bottom of the stirring rod 3 is fixedly connected to a scraping plate 4. A slag collection filter cavity 5 is clamped inside the scraping plate 4. A plurality of first guiding blocks are fixed on the outer surface of the scraping plate 4 facing the middle of the main body 1. One end of the bottom of the scraping plate 4 is fixedly connected to a second guiding block. A pulling handle is fixedly connected to the middle of the top of the slag collection filter cavity 5.

[0025] In this embodiment: When cleaning the inner wall of the main body 1, the motor 2 drives the scraping plate 4 fixedly connected to one end of the stirring rod 3 to rotate along the inner wall of the main body 1 through the stirring rod 3. The scraper fixed on the outer edge of the scraping plate 4 will scrape the slag adhering to the inner wall of the main body 1. The scraped slag is pushed by the slag scraped later and slides into the slag collection filter cavity 5 along the first guiding block and the second guiding block. After the scraping is completed, open the hatch of the main body 1 and pull out the slag collection filter cavity 5 from the middle of the scraping plate 4 through the handle to clean the slag in the slag collection filter cavity 5, which facilitates the cleaning of the slag on the inner wall of the distillation kettle.

[0026] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A vacuum distillation apparatus for preparing transformer insulating oil, comprising a main body (1), characterized in that: One end of the main body (1) is fixedly connected to a first docking ball cavity (13), the inner side of the first docking ball cavity (13) is rotatably connected to a first docking ball head (12), one end of the first docking ball head (12) is fixedly connected to a delivery pipe (6), one end of the delivery pipe (6) is fixedly connected to a second docking ball cavity (10), the inner side of the second docking ball cavity (10) is rotatably connected to a second docking ball head (7), and one end of the second docking ball head (7) is fixedly connected to a connecting pipe (8).

2. A vacuum distillation apparatus for preparing transformer insulating oil according to claim 1, characterized in that: A connecting cavity opening (16) is provided on the inner side of the first connecting ball cavity (13), and a drainage block (15) is fixedly connected above and below one end of the connecting cavity opening (16).

3. A vacuum distillation apparatus for preparing transformer insulating oil according to claim 1, characterized in that: An arc receiving cavity (14) is provided in the wall cavity of the inner wall of the first connecting ball cavity (13), and a positioning arc plate (11) is slidably connected to the inner side of the arc receiving cavity (14).

4. A vacuum distillation apparatus for preparing transformer insulating oil according to claim 3, characterized in that: One end of the positioning arc plate (11) is fixedly connected to the outer surface of the connection position between the delivery pipe (6) and the first docking ball head (12), and a positioning nut (17) is provided on the top of the first docking ball cavity (13).

5. A vacuum distillation apparatus for preparing transformer insulating oil according to claim 1, characterized in that: One end of the first docking ball cavity (13) is fixedly connected to a first elastic rubber sleeve (18), the middle portion of the first elastic rubber sleeve (18) is fixedly connected to the outer surface of the conveying pipe (6), and the first elastic rubber sleeve (18) is located outside the positioning arc plate (11).

6. A vacuum distillation apparatus for preparing transformer insulating oil according to claim 1, characterized in that: One end of the second docking ball cavity (10) is fixedly connected to a second elastic rubber sleeve (9), and the middle portion of the second elastic rubber sleeve (9) is fixedly connected to the outer surface of the connecting pipe (8).

7. A vacuum distillation apparatus for preparing transformer insulating oil according to claim 4, characterized in that: The bottom end of the positioning nut (17) is clamped with the positioning arc plate (11), and a positioning slot is provided at the connection position between the positioning arc plate (11) and the positioning nut (17). The positioning nut (17) fixes the adjusted position of the positioning arc plate (11) through the positioning slot.

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