Rectifying tower convenient to clean and overhaul

Abstract

The utility model relates to the technical field of rectifying towers, in particular to a rectifying tower convenient to clean and overhaul, which comprises a first tower body and a fixing mechanism, a second tower body is arranged on the first tower body, a third tower body is arranged on the second tower body, a first fixing ring is arranged on the first tower body, a second fixing ring and a fourth fixing ring are arranged at the two ends of the second tower body respectively, and a third fixing ring is arranged on the third tower body; the fixing mechanism comprises six threaded rods distributed on the first fixing ring in an annular array mode, nuts in threaded connection with the threaded rods, threaded cylinders arranged on the nuts and first elastic pads arranged on the outer sides of the threaded cylinders. The utility model not only can avoid the disadvantage that the traditional integrated rectifying tower is not easy to operate during cleaning and overhauling, but also can greatly improve the tightness of the joint of each section of tower body, and is simple and convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of distillation column technology, and in particular to a distillation column that is easy to clean and maintain. Background Technology

[0002] A distillation column is a device used to separate liquid mixtures. Its working principle is based on the difference in boiling points of the liquids. In a distillation column, the mixture is heated, causing the liquid components to evaporate. The vapor is then cooled and condensed, ultimately yielding a highly pure liquid. Due to the strong adhesion of some materials, the interior of the distillation column needs to be cleaned and inspected after each use to ensure its future operation.

[0003] Chinese patent CN221358587U discloses a distillation column that is easy to clean and maintain, comprising a lower column body, a middle column body, and an upper column body. Connecting studs are evenly distributed on the top of the lower column body, and the upper column body is connected to the top of the middle column body. Both the middle and upper column bodies are interlocked on the upper part of the connecting studs. This distillation column adopts a split structure, dividing the column into three parts: the lower column body, the middle column body, and the upper column body. Each column body is relatively low in height and its opening side is connected to the interior of the column body, making cleaning easier compared to a one-piece distillation column. Furthermore, the column bodies are connected by connecting studs, with the lower column body serving as the base. The middle and upper column bodies are connected by interlocking connecting studs, requiring only a single set of bolts to be tightened during connection, greatly reducing the installation workload of the column body and making the distillation column more convenient to assemble and disassemble.

[0004] However, the above technical solution has the following shortcomings: Although the distillation column can be divided into sections through a split structure to facilitate cleaning and maintenance of the column's interior, the use of ordinary bolts for fastening during the installation of the column can easily lead to unreliable connections and reduce the safety of the equipment. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a distillation column that is easy to clean and maintain. This not only avoids the disadvantages of traditional integrated distillation columns being difficult to operate during cleaning and maintenance, but also greatly improves the tightness of the connection between each section of the column, and is simple and convenient to operate.

[0006] The present invention provides a distillation column that is easy to clean and maintain, comprising a first column body and a fixing mechanism; a second column body is mounted on the first column body, and a third column body is mounted on the second column body; a first fixing ring is mounted on the first column body, a second fixing ring and a fourth fixing ring are respectively mounted at both ends of the second column body, and a third fixing ring is mounted on the third column body; the fixing mechanism includes six threaded rods arranged in a ring array on the first fixing ring, a nut threadedly connected to the threaded rod, a threaded cylinder mounted on the nut, and a first elastic pad mounted on the outside of the threaded cylinder; the first fixing ring and the fourth fixing ring are fitted together, and the second fixing ring... The first and second fixed rings are fitted together. The first, second, third, and fourth fixed rings are each provided with six first through holes. The threaded rod passes through the first through hole. The threaded cylinder is threadedly connected to the threaded rod and is located inside the first through hole. The first elastic pad is pressed against the inner wall of the first through hole. The second tower body is provided with three reinforcing blocks. The first fixed ring is provided with three sliding rods arranged in a ring array. The third fixed ring is provided with a second through hole for the sliding rod to pass through. The top of the sliding rod abuts against the second fixed ring. The sliding rod is provided with a rectangular insert. The second fixed ring is provided with a positioning groove for the insert to be embedded.

[0007] Preferably, the first tower body is provided with an air inlet pipe and a discharge pipe, the second tower body is provided with a feed pipe, and the third tower body is provided with a reflux pipe and an exhaust pipe.

[0008] Preferably, a second elastic pad is provided inside the reinforcing block, and the second elastic pad is sleeved on the slide rod and presses against the slide rod.

[0009] Preferably, the first tower body is provided with a mounting base, and the mounting base is provided with three support columns arranged in a ring array.

[0010] Compared with the prior art, the present invention has the following beneficial technical effects:

[0011] 1. This utility model divides the entire distillation column into three parts: the first column body, the second column body, and the third column body. When cleaning and maintaining the distillation column, the three column body parts can be disassembled for independent cleaning and maintenance. Compared with an integrated distillation column, it is more convenient to clean. The fixed mechanism can increase the thread engagement area of ​​the nut to improve the fixing effect of the nut on each fixing ring, thereby improving the stability of the column body connection. It is also simple and convenient to operate and has good practicality.

[0012] 2. This utility model can further improve the stability of the tower body during installation by setting the sliding rod and the reinforcing block. The second elastic pad fills the gap between the reinforcing block and the sliding rod, improving the tightness of the connection between the sliding rod and the reinforcing block. Attached Figure Description

[0013] Figure 1This is a schematic diagram of the structure of an embodiment of the present utility model;

[0014] Figure 2 This is a breakdown diagram of the overall structure;

[0015] Figure 3 This is a schematic diagram of the flipped cross-section of the second fixing ring;

[0016] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0017] Figure 5 A schematic diagram of the reinforcing block structure;

[0018] Reference numerals in the attached drawings: 1. First tower body; 2. Second tower body; 3. Third tower body; 4. First fixing ring; 5. Threaded rod; 6. Sliding rod; 7. Insert block; 8. Second fixing ring; 9. First through hole; 10. Nut; 11. Threaded cylinder; 12. First elastic pad; 13. Third fixing ring; 14. Second through hole; 15. Fourth fixing ring; 16. Positioning groove; 17. Reinforcing block; 18. Second elastic pad; 19. Air inlet pipe; 20. Feed pipe; 21. Return pipe; 22. Discharge pipe; 23. Exhaust pipe; 24. Mounting base; 25. Support column. Detailed Implementation

[0019] Example 1, as Figures 1-5 As shown, the distillation column proposed in this embodiment is easy to clean and maintain, including a first column body 1 and a fixing mechanism; a second column body 2 is provided on the first column body 1, a third column body 3 is provided on the second column body 2, a first fixing ring 4 is provided on the first column body 1, a second fixing ring 8 and a fourth fixing ring 15 are respectively provided at both ends of the second column body 2, and a third fixing ring 13 is provided on the third column body 3.

[0020] like Figures 1-4As shown, the fixing mechanism includes six threaded rods 5 arranged in a ring array on the first fixing ring 4, a nut 10 threadedly connected to the threaded rods 5, a threaded cylinder 11 disposed on the nut 10, and a first elastic pad 12 disposed on the outside of the threaded cylinder 11. The first fixing ring 4 and the fourth fixing ring 15 are fitted together, and the second fixing ring 8 and the third fixing ring 13 are fitted together. The first fixing ring 4, the second fixing ring 8, the third fixing ring 13, and the fourth fixing ring 15 are each provided with six first through holes 9. The threaded rods 5 pass through the first through holes 9. The threaded cylinder 11 is threadedly connected to the threaded rods 5 and is located inside the first through holes 9. The first elastic pad 12 is disposed on the outside of the first fixing ring 4. The inner walls of the through hole 9 are pressed against each other. By setting a threaded cylinder 11 on the nut 10, when the nut 10 is screwed onto the threaded rod 5 and approaches the fixing ring, the threaded cylinder 11 follows the nut 10 and screws in. The threaded cylinder 11 drives the first elastic pad 12 to move until the nut 10 and the fixing ring come into contact and stop moving. At this time, the first elastic pad 12 will be squeezed into the first through hole 9 during the process of following the threaded cylinder 11, filling the gap between the first through hole 9 and the threaded cylinder 11. This increases the fixing effect on each fixing ring by increasing the thread engagement area, improves the stability of the tower body connection, and is simple and convenient to operate, with good practicality.

[0021] In this embodiment, the entire distillation column is divided into three parts: a first column body 1, a second column body 2, and a third column body 3. During cleaning and maintenance, each of the three column bodies can be disassembled for independent cleaning and maintenance, making cleaning more convenient compared to a single-unit distillation column. When the distillation column needs to be disassembled for cleaning, first unscrew the nut 10 on the fourth fixing ring 15 from the threaded rod 5. Then, use a hoisting device to disassemble the third column body 3 from the top. Next, screw the nuts 10 on the second fixing ring 8 and the third fixing ring 13 onto the upper middle section of the threaded rod 5. This will unscrew the second fixing ring 8 of the second column body 2 from the threaded rod 5. Then, unscrew the nuts 10 from the upper middle section. Finally, remove the entire second column body 2 from the threaded rod 5, thus completing the disassembly operation.

[0022] Example 2, as Figure 1 and Figure 2As shown, this embodiment proposes a distillation column that is easy to clean and maintain. Compared with Embodiment 1, in this embodiment, the first column body 1 is provided with an inlet pipe 19 and a discharge pipe 22, the second column body 2 is provided with a feed pipe 20, and the third column body 3 is provided with a reflux pipe 21 and an exhaust pipe 23. When the distillation column is in use, it needs to be used in conjunction with other equipment such as heat exchangers, condensers, and reboilers. The feed pipe 20, discharge pipe 22, inlet pipe 19, reflux pipe 21, and exhaust pipe 23 are connected to the corresponding equipment through pipelines. When cleaning and maintaining the distillation column, the external pipelines are removed first before cleaning and maintenance. The first column body 1 is provided with a mounting base 24, and the mounting base 24 is provided with three support columns 25 arranged in a ring array. The support columns 25 are used to support the entire column body. At the same time, the mounting base 24 can provide a place for workers to stand so as to clean the outer surface of the column body.

[0023] Example 3, as Figure 2 , Figure 3 and Figure 5 As shown, this embodiment proposes a distillation column that is easy to clean and maintain. Compared with the first embodiment, in this embodiment, the second column body 2 is provided with three reinforcing blocks 17, the first fixing ring 4 is provided with three sliding rods 6 arranged in a ring array, the third fixing ring 13 is provided with a second through hole 14 for the sliding rods 6 to pass through, the top of the sliding rod 6 is abutted against the second fixing ring 8, the sliding rod 6 is provided with a rectangular insert 7, the second fixing ring 8 is provided with a positioning groove 16 for the insert 7 to be embedded, the insert 7 is used to limit the position of the second fixing ring 8, and at the same time avoid the disadvantage that the screw nut 10 is not easy to screw the threaded cylinder 11 into the first through hole 9. The reinforcing block 17 is provided with a second elastic pad 18 inside, the second elastic pad 18 is sleeved on the sliding rod 6 and is pressed against the sliding rod 6.

[0024] In this embodiment, when the second tower body 2 is fixedly installed on the first tower body 1, as the first through hole 9 of the second fixing ring 8 and the third fixing ring 13 passes through the threaded rod 5, the second through hole 14 on the second fixing ring 8 and the third fixing ring 13 simultaneously passes through the slide rod 6. As the second tower body 2 moves downward, the reinforcing block 17 is sleeved onto the slide rod 6. The setting of the reinforcing block 17 can improve the stability of the second tower body 2 during installation. In conjunction with the second elastic pad 18, the gap between the reinforcing block 17 and the slide rod 6 is filled, improving the tightness of the connection between the slide rod 6 and the reinforcing block 17.

[0025] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A distillation column that is easy to clean and maintain, characterized in that, include: The first tower body (1) is provided with a second tower body (2), and the second tower body (2) is provided with a third tower body (3). The first tower body (1) is provided with a first fixing ring (4), the two ends of the second tower body (2) are respectively provided with a second fixing ring (8) and a fourth fixing ring (15), and the third tower body (3) is provided with a third fixing ring (13). The fixing mechanism includes six threaded rods (5) arranged in a ring array on the first fixing ring (4), a nut (10) threadedly connected to the threaded rods (5), a threaded cylinder (11) arranged on the nut (10), and a first elastic pad (12) arranged on the outside of the threaded cylinder (11). The first fixing ring (4) and the fourth fixing ring (15) are in contact with each other, and the second fixing ring (8) and the third fixing ring (13) are in contact with each other. The first fixing ring (4), the second fixing ring (8), the third fixing ring (13) and the fourth fixing ring (15) are each provided with six first through holes (9). The threaded rods (5) pass through the first through holes (9). The threaded cylinder (11) is threadedly connected to the threaded rods (5) and located inside the first through holes (9). The first elastic pad (12) and the inner wall of the first through holes (9) are pressed against each other. The second tower body (2) is provided with three reinforcing blocks (17), the first fixing ring (4) is provided with three sliding rods (6) arranged in a ring array, the third fixing ring (13) is provided with a second through hole (14) for the sliding rods (6) to pass through, the top of the sliding rods (6) is abutted against the second fixing ring (8), the sliding rods (6) are provided with rectangular inserts (7), and the second fixing ring (8) is provided with positioning grooves (16) for the inserts (7) to be embedded.

2. The distillation column that is easy to clean and maintain according to claim 1, characterized in that, The first tower body (1) is equipped with an air inlet pipe (19) and a discharge pipe (22), the second tower body (2) is equipped with a feed pipe (20), and the third tower body (3) is equipped with a return pipe (21) and an exhaust pipe (23).

3. A distillation column that is easy to clean and maintain according to claim 1, characterized in that, The reinforcing block (17) has a second elastic pad (18) inside. The second elastic pad (18) is sleeved on the slide rod (6) and is pressed against the slide rod (6).

4. A distillation column that is easy to clean and maintain according to claim 1, characterized in that, The first tower body (1) is provided with a mounting base (24), and the mounting base (24) is provided with three support columns (25) arranged in a ring array.

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