Modular packed rectification column cleanable in line

Abstract

The utility model relates to rectifying column technical field, concretely is a modularized packing rectifying column of on -line cleaning, its solution existing integral type structure packing rectifying column needs integral replacement when replacing packing, inconvenient operation and causes packing waste technical problem, including rectifying column body, the rectifying column body includes tower top, tower bottom and a plurality of cylinder, the tower top is located rectifying column body top, the tower bottom is located rectifying column body bottom, a plurality of the cylinder is connected between tower top and tower bottom, adjacent two the cylinder between is detachably connected, the cylinder close to tower top and tower top are detachably connected, the cylinder close to tower bottom and tower bottom are detachably connected, every the cylinder inside is equipped with storage cavity, the storage cavity is filled with packing, through the dismounting single cylinder, can replace, clean the packing in its storage cavity, every cylinder's outer wall all is equipped with observation port, and the observation port place sealing installation has transparent device.

Description

Technical Field

[0001] This utility model relates to the field of distillation column technology, specifically to a modular packed distillation column that can be cleaned online. Background Technology

[0002] Packed distillation columns are core equipment in industries such as chemical and petroleum for separating and purifying mixtures. They are typically filled with packing material, which is distributed vertically along the height of the distillation column.

[0003] Therefore, in actual use, the service life of packing material varies depending on its location. For example, when material flows from top to bottom, the upper packing material is prone to clogging, while the lower packing material, having already undergone preliminary filtration, can maintain a better service life. The lower packing material has a longer service life than the upper packing material.

[0004] However, most existing packed distillation columns have a monolithic structure, requiring the packing material to be packed entirely within the column. When the upper packing reaches the end of its service life and needs replacement, the monolithic structure prevents the individual replacement of the failed upper packing. Instead, all packing material (including the lower packing still within its service life) must be removed and replaced together. This method is not only cumbersome, requiring a prolonged shutdown of the entire distillation column for dismantling, severely impacting production efficiency, but it also results in a significant waste of resources due to the discarding of a large amount of underutilized lower packing. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a modular packed distillation column that can be cleaned online, solving the technical problems of existing integral packed distillation columns requiring complete replacement of the entire column when changing the packing, which is inconvenient and results in packing waste.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a modular packed distillation column that can be cleaned online, comprising a distillation column body, wherein the distillation column body includes a column top, a column bottom and several cylinders, wherein the column top is located at the top of the distillation column body and the column bottom is located at the bottom of the distillation column body, and several cylinders are connected between the column top and the column bottom.

[0007] The two adjacent cylinders are detachably connected, the cylinder near the top of the tower is detachably connected to the top of the tower, and the cylinder near the bottom of the tower is detachably connected to the bottom of the tower.

[0008] Each of the cylinders has a storage cavity inside, which is filled with packing material. By disassembling a single cylinder, the packing material in its storage cavity can be replaced or cleaned.

[0009] Furthermore, each of the cylinders has an observation port on its outer wall, and a transparent device is sealed and installed at the observation port, allowing the use of the packing material in the storage cavity to be observed through the observation port and the transparent device.

[0010] Furthermore, an inlet is installed on the outer wall of the tower top, and a drain outlet is installed at the bottom of the tower base.

[0011] Furthermore, an air inlet pipe is installed on the outer wall of the tower base.

[0012] Furthermore, a water quality sensor is installed at the sewage outlet.

[0013] Furthermore, the distillation column body is equipped with a temperature sensor, a pressure sensor, and a liquid level sensor; and the distillation column body is also equipped with a number of spray heads, each of which is correspondingly arranged above each cylinder and is used to spray the packing material in the corresponding storage chamber.

[0014] Furthermore, a support mesh is provided at the bottom of each of the storage cavities inside the cylinder. The support mesh is fixedly connected to the cylinder and is used to support the packing material inside the storage cavity.

[0015] Furthermore, the support net has a discharge port, and a barrier net that can block the discharge port is installed at the discharge port; a connecting shaft is rotatably installed in the middle of the support net, and the connecting shaft is fixedly connected to the barrier net. By rotating the connecting shaft, the barrier net can be rotated to adjust the position of the barrier net.

[0016] Furthermore, the storage cavity is provided with a support frame fixedly connected to the cylinder, and the support frame is rotatably connected to the connecting shaft; a blocking block is fixedly provided on the connecting shaft, and the blocking block is located at the top of the support frame to form a limit; a load-bearing block is provided at the bottom of the connecting shaft and below the net.

[0017] Furthermore, a screwing component is provided at the top of the connecting shaft.

[0018] Compared with the prior art, this utility model provides a modular packed distillation column that can be cleaned online, which has the following advantages:

[0019] This modular packed distillation column, capable of online cleaning, features a detachable connection between the column body (top and bottom) and several individual cylinders. Each cylinder has an independent storage chamber for packing material. In practical use, when packing material becomes clogged or reaches its service life, the entire distillation column does not need to be disassembled; only the cylinder containing the corresponding packing material needs to be removed for replacement and cleaning. This significantly reduces the overall downtime required for disassembling the entire distillation column, effectively minimizing production interruptions and improving work efficiency. Furthermore, it allows for precise replacement of failed packing material, avoiding the waste of other underutilized packing materials and reducing costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a three-dimensional structural diagram of the cylindrical body of this utility model;

[0022] Figure 3 This is a cross-sectional structural diagram of the cylindrical body of this utility model;

[0023] Figure 4 This is a schematic diagram of the first three-dimensional structure of the support net of this utility model;

[0024] Figure 5 This is a schematic diagram of the second three-dimensional structure of the support net of this utility model.

[0025] In the diagram: 1. Distillation column body; 2. Top of column; 3. Bottom of column; 4. Shell; 5. Packing; 6. Observation port; 7. Inlet; 8. Drain outlet; 9. Water quality sensor; 10. Air inlet pipe; 11. Storage chamber; 12. Support net; 13. Discharge port; 14. Barrier net; 15. Connecting shaft; 16. Support frame; 17. Blocking block; 18. Load-bearing block; 19. Tightening component. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1This utility model discloses a modular packed distillation column capable of online cleaning, comprising a distillation column body 1, which is composed of a top 2, a bottom 3, and several cylindrical shells 4. The outer walls of the top 2 and the bottom 3 are fixedly connected to external support devices (mounting frames, racks, etc.). These support devices provide stable support for the bottom 3 and also support the top 2, providing reliable structural support for the entire distillation column body 1. The top 2 is located at the uppermost part of the distillation column body 1, and the bottom 3 is located at the lowermost part. The several cylindrical shells 4 are sequentially connected between the top 2 and the bottom 3, forming a complete column space that provides the necessary closed environment for gas-liquid mass transfer during the distillation process. The two adjacent cylinders 4 are detachably connected. The cylinder 4 near the top 2 is detachably connected to the top 2, and the cylinder 4 near the bottom 3 is detachably connected to the bottom 3. The top 2, bottom 3 and cylinder 4 are connected by quick-connect clamps or flanges. The clamps or flanges facilitate the disassembly and installation of the cylinder 4.

[0028] An inlet 7 is provided on the outer wall of the top 2 of the column, which serves as a channel for materials to enter the interior of the distillation column body 1. A drain outlet 8 is installed at the bottom of the bottom 3 of the column, mainly used to discharge waste liquid and other substances from the distillation column body 1.

[0029] Each cylinder 4 has an independent storage chamber 11 inside, which is used to accommodate the packing material 5. The packing material 5 filled in the storage chamber 11 can be selected according to the distillation process, such as metal structured packing, plastic Pall rings, or ceramic packing. Since the cylinder 4 is detachably connected to adjacent components, when the packing material 5 in a certain cylinder 4 becomes clogged due to prolonged use, it is not necessary to disassemble the entire distillation column. Only the cylinder 4 needs to be removed individually, and the packing material 5 in its storage chamber 11 can be easily replaced or cleaned. After the operation is completed, the cylinder 4 can be reinstalled, which effectively simplifies the process of replacing the packing material 5.

[0030] An inlet pipe 10 is installed on the outer wall of the bottom 3 of the column. One end of the inlet pipe 10 is connected to the interior of the distillation column body 1, and the other end can be connected to a steam generator or other gas source device. During the distillation operation, steam can be stably delivered into the distillation column through the inlet pipe 10. The steam, as the heat source and gaseous medium in the distillation process, can fully contact the liquid material in the column, causing the liquid material to be heated and vaporized and flow upward. Then, it completes mass transfer and separation with the descending liquid material in the packing layer 5. At the same time, according to the actual process requirements, the inlet pipe 10 can also be used to deliver other gases that meet the process requirements to meet the needs of different distillations.

[0031] To facilitate real-time monitoring of the packing 5 inside the cylinder 4, an observation port 6 is provided on the outer wall of each cylinder 4. A transparent device (such as tempered glass or acrylic plate) is installed at the observation port 6 in a sealed manner. This ensures the sealing of the distillation column body 1 and prevents internal gas and liquid leakage. It also allows operators to clearly observe the actual usage of the packing 5 inside the corresponding storage chamber 11 through the observation port 6 and the transparent device without disassembling the cylinder 4.

[0032] To achieve comprehensive monitoring and timely control of the operating status of the distillation column 1, multiple types of sensors are installed at designated locations, and an online monitoring mechanism has been established. Among them, a water quality sensor 9 is installed at the wastewater outlet 8 at the bottom of the column 3. This sensor is in direct contact with the wastewater in the outlet 8 and can detect the water quality parameters of the discharged wastewater (such as turbidity, pollutant concentration, etc.) in real time. By observing changes in water quality, it is possible to indirectly determine whether there are problems such as damage or leakage of the packing 5 inside the distillation column, or incomplete material separation, thus enabling real-time monitoring of the column's operating status.

[0033] Meanwhile, the distillation column body 1 is also equipped with temperature sensors, pressure sensors, and level sensors, which are used to accurately detect the temperature, internal gas pressure, and liquid level of different areas within the column. These parameters directly affect the stability and separation effect of the distillation process. All sensors are electrically connected to external display devices (such as central control displays, instrument panels, etc.), which can synchronously transmit the real-time collected water quality, temperature, pressure, and level data to the display devices for intuitive presentation. Staff can then observe the various operating conditions inside the distillation column body 1 online in real time, facilitating timely detection of parameter anomalies and rapid process adjustments to ensure the continuous and stable operation of the distillation process.

[0034] The distillation column body 1 is also equipped with several spray heads, and the spray heads are arranged in a one-to-one correspondence with the cylinder 4. Each spray head is installed directly above the corresponding cylinder 4, and the spray head is connected to a pipe that connects to an external water supply device. The spray direction is towards the storage chamber 11 inside the cylinder 4. During the distillation operation, the spray heads can spray liquid onto the packing 5 below.

[0035] like Figure 2-3 As shown, a support mesh 12 is provided at the bottom of the storage cavity 11 inside each cylinder 4. The support mesh 12 is firmly connected to the cylinder 4 by welding, bolting, or other methods. The support mesh 12 provides stable support for the packing material 5 filled in the storage cavity 11.

[0036] Relying solely on the support net 12 mentioned above to support the packing 5 has certain drawbacks: when it is necessary to replace the packing 5 in the storage cavity 11 inside the cylinder 4, the entire cylinder 4 must be inverted to allow the packing 5 to be poured out of the storage cavity 11. However, the cylinder 4 is usually large in volume and heavy in weight, and the inversion operation is not only laborious and inconvenient, but also prone to safety accidents due to the imbalance of the cylinder 4, increasing the difficulty and risk of replacing the packing 5.

[0037] To solve this problem, such as Figure 3-5 As shown, this application has a discharge port 13 on the support net 12, and a barrier net 14 is provided at the discharge port 13 to block the opening. A connecting shaft 15 is rotatably installed in the middle of the support net 12, and the connecting shaft 15 is fixedly connected to the barrier net 14, so that the position of the barrier net 14 can be adjusted with the rotation of the connecting shaft 15. When it is necessary to discharge the packing 5, the operator only needs to rotate the connecting shaft 15 to move the barrier net 14 away from the discharge port 13, and the discharge port 13 is no longer blocked. At this time, the packing 5 in the storage cavity 11 can fall naturally down the discharge port 13 and be discharged without inverting the cylinder 4. When it is necessary to fill the packing 5, the connecting shaft 15 is rotated to turn the barrier net 14 back to the discharge port 13, and the barrier net 14 is used to block the discharge port 13. The barrier net 14 and the support net 12 together form a complete bearing surface, which can support the packing 5 in the storage cavity 11.

[0038] To further enhance the stability and load-bearing capacity of the support net 12 and prevent deformation due to the gravity of the filler 5 during long-term use, this application provides a support frame 16 fixedly connected to the cylinder 4 inside the storage cavity 11. The support frame 16 is rotatably connected to the connecting shaft 15. A blocking block 17 is fixedly provided on the connecting shaft 15, and the blocking block 17 is located at the top of the support frame 16. Through the limiting cooperation with the support frame 16, the connecting shaft 15 can be effectively prevented from shifting downward during use. In addition, a load-bearing block 18 is provided at the bottom of the connecting shaft 15 and below the net 14. In traditional structures, the support net 12 is mostly fixed to the outer peripheral wall and the cylinder 4, lacking effective support in the middle. The filler 5 is prone to deformation due to stress concentration when bearing load for a long time. However, this application, through the setting of support frame 16, connecting shaft 15 with blocking block 17 and load-bearing block 18, the load-bearing block 18 can directly form an upward support force on the middle of the support net 12, distributing the weight of the filler 5 on the support net 12 to the support frame 16 and the cylinder 4, greatly reducing the load-bearing problem in the middle of the support net 12, effectively avoiding deformation and collapse of the support net 12 due to long-term load, significantly improving the structural stability and support effect of the support net 12, and extending the service life of the support net 12.

[0039] The top of the connecting shaft 15 is provided with a screwing part 19. The operator can directly rotate the screwing part 19 by hand or with the help of a tool (such as a wrench). The rotation of the screwing part 19 drives the connecting shaft 15 to rotate synchronously, thereby driving the barrier 14 to adjust its position and realize the opening or blocking of the discharge port 13.

[0040] In summary, this modular packed distillation column with online cleaning capability allows operators to assess the condition of the packing material 5 within each cylinder 4 by checking the observation port 6 on the outer wall of the cylinder 4, or by combining data from the water quality sensor 9 at the drain port 8 and sensors inside the column. If blockage or the reached end of the packing material 5's service life is detected in a particular cylinder 4, that cylinder 4 can be removed without disassembling the entire distillation column body 1. After replacing or cleaning the packing material, the cylinder 4 is reinstalled in its original position, completing the replacement of the packing material 5 in that area and restoring the distillation column to normal operation.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular packed distillation column capable of online cleaning, comprising a distillation column body (1), characterized in that: The distillation column body (1) includes a column top (2), a column bottom (3) and several cylinders (4). The column top (2) is located at the top of the distillation column body (1), the column bottom (3) is located at the bottom of the distillation column body (1), and several cylinders (4) are connected between the column top (2) and the column bottom (3). The two adjacent cylinders (4) are detachably connected. The cylinder (4) near the top of the tower (2) is detachably connected to the top of the tower (2), and the cylinder (4) near the bottom of the tower (3) is detachably connected to the bottom of the tower (3). Each of the cylinders (4) has a storage cavity (11) inside, and the storage cavity (11) is filled with filler (5). By disassembling a single cylinder (4), the filler (5) in its storage cavity (11) can be replaced or cleaned. Each of the cylinders (4) has a support net (12) at the bottom of the storage cavity (11). The support net (12) is fixedly connected to the cylinder (4) and is used to support the packing material (5) in the storage cavity (11). The support net (12) has a discharge port (13), and a barrier net (14) that can block the discharge port (13) is installed at the discharge port (13); a connecting shaft (15) is rotatably installed in the middle of the support net (12), and the connecting shaft (15) is fixedly connected to the barrier net (14). By rotating the connecting shaft (15), the barrier net (14) can be rotated to adjust the position of the barrier net (14).

2. The modular packed distillation column capable of online cleaning according to claim 1, characterized in that: Each of the cylinders (4) has an observation port (6) on its outer wall. A transparent device is sealed at the observation port (6). The usage of the packing material (5) in the storage cavity (11) can be observed through the observation port (6) and the transparent device.

3. The modular packed distillation column capable of online cleaning according to claim 2, characterized in that: An inlet (7) is installed on the outer wall of the tower top (2), and a drain outlet (8) is installed at the bottom of the tower bottom (3).

4. The modular packed distillation column capable of online cleaning according to claim 3, characterized in that: An air inlet pipe (10) is installed on the outer wall of the tower bottom (3).

5. The modular packed distillation column capable of online cleaning according to claim 3, characterized in that: A water quality sensor (9) is installed at the sewage outlet (8).

6. The modular packed distillation column capable of online cleaning according to claim 5, characterized in that: The distillation column body (1) is equipped with a temperature sensor, a pressure sensor and a liquid level sensor; and the distillation column body (1) is also equipped with a number of spray heads, each of which is located above each cylinder (4) and is used to spray the packing (5) in the corresponding storage chamber (11).

7. The modular packed distillation column capable of online cleaning according to claim 1, characterized in that: The storage cavity (11) is provided with a support frame (16) fixedly connected to the cylinder (4), and the support frame (16) is rotatably connected to the connecting shaft (15); a blocking block (17) is fixedly provided on the connecting shaft (15), and the blocking block (17) is located at the top of the support frame (16) to form a limit; a load-bearing block (18) is provided at the bottom of the connecting shaft (15) and below the net (14).

8. The modular packed distillation column capable of online cleaning according to claim 7, characterized in that: The top of the connecting shaft (15) is provided with a screwing part (19).

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