Boron trifluoride methyl ether complex feeding distributor of rectifying tower

Abstract

The utility model relates to the technical field of chemical separation, and discloses a boron trifluoride methyl ether complex feeding distributor of a rectifying tower, which comprises a tower body, an air vent is arranged at the top of the tower body, a fixing component is mounted in the tower body, and a distribution component is mounted in the tower body; the fixing assembly comprises a fixing block, the fixing block is fixedly connected to the interior of the tower body, a fixing frame is placed on the top of the fixing block, a limiting block is fixedly connected to the exterior of the fixing frame, a clamping column is slidably connected to the middle of the limiting block, a clamping groove is formed in the middle of the fixing block, and the clamping groove is connected with the clamping column in a clamped mode. The periphery of the clamping column is sleeved with a spring. According to the utility model, the fixing of the distribution assembly can be quickly completed through the matching of the clamping columns and the clamping grooves; and during maintenance, the device can be easily detached for inspection, maintenance or component replacement.

Description

Technical Field

[0001] This utility model relates to the field of chemical separation technology, and in particular to a boron trifluoride methyl ether complex feed distributor for a distillation column. Background Technology

[0002] A distillation column is a tower-type gas-liquid contact device used for distillation. It utilizes the different volatility of the components in a mixture—that is, the different vapor pressures of the components at the same temperature—to transfer lighter components (low-boiling substances) from the liquid phase to the gas phase, while heavier components (high-boiling substances) from the gas phase transfer to the liquid phase, thus achieving separation. Distillation columns are also a widely used mass and heat transfer device in petrochemical production.

[0003] A typical distillation unit consists of a distillation column, a condenser, a reflux tank, and a reboiler. The feed material flows into the distribution structure through the feed pipe, and then, under the action of gravity and the jet force generated by the material's own flow velocity, flows out from the small holes or gaps in the distribution structure, achieving the initial dispersion of the material in the distillation column. Subsequently, the gas and liquid phases exchange matter and energy in the packing layer or trays in the column to complete the distillation separation operation.

[0004] Traditional equipment often uses welding to fix the distribution components to the distillation column body. During routine maintenance, inspection and replacement of vulnerable parts such as nozzles and branch pipes in the distribution components, the welding method requires a lot of time to cut and re-weld. To solve the above problems, a boron trifluoride methyl ether complex feed distributor for distillation columns is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a boron trifluoride methyl ether complex feed distributor for a distillation column, aiming to improve the problem that the column body and internal structure are mostly fixed in the existing technology, which is inconvenient for maintenance and repair.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A feed distributor for boron trifluoride methyl ether complex in a distillation column includes a column body, a vent at the top of the column body, a fixing assembly installed inside the column body, and a distribution assembly installed inside the column body.

[0008] The fixing component includes a fixing block, which is fixedly connected to the inside of the tower body. A fixing frame is placed on the top of the fixing block. A limiting block is fixedly connected to the outside of the fixing frame. A locking post is slidably connected to the middle of the limiting block. A locking groove is opened in the middle of the fixing block, and the locking groove engages with the locking post.

[0009] As a further description of the above technical solution:

[0010] A spring is fitted around the outer periphery of the locking post, and the spring is fixedly connected to the middle of the limiting block;

[0011] As a further description of the above technical solution:

[0012] The distribution assembly includes a feed pipe, which is fixedly connected to the middle of the tower body. A main pipe is fixedly connected to the outside of the feed pipe, a branch pipe is fixedly connected to the middle of the main pipe, and a nozzle is fixedly connected to the middle of the branch pipe.

[0013] As a further description of the above technical solution:

[0014] A valve is installed in the middle of the feed pipe, and the fixing bracket is fixedly connected to the outside of the main pipe;

[0015] As a further description of the above technical solution:

[0016] The tower body has a packing layer inside, and packing material is placed inside the packing layer;

[0017] As a further description of the above technical solution:

[0018] A connecting flange is provided in the middle of the branch pipe;

[0019] As a further description of the above technical solution:

[0020] A sieve plate is fixedly connected inside the tower body;

[0021] As a further description of the above technical solution:

[0022] An inlet is fixedly connected to the middle of the tower body, and a demisting plate is fixedly connected inside the tower body.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the distribution components can be quickly fixed by the cooperation of the clip and the slot; during maintenance, they can also be easily disassembled for inspection, repair or replacement of parts; the connecting flange facilitates the individual disassembly and installation of branch pipes, and facilitates the maintenance and replacement of vulnerable parts such as nozzles and branch pipes, reducing the difficulty and cost of equipment maintenance and improving the maintainability of the equipment.

[0025] 2. In this invention, the boron trifluoride methyl ether complex enters through the feed pipe, is distributed to the branch pipes via the main pipe, and is then evenly sprayed into the interior of the tower by the nozzles. This uniform distribution method greatly increases the contact area between the material and the rising gas phase. At the packing layer and sieve plate, the gas and liquid phases can fully contact each other, thereby improving the mass transfer efficiency and enabling the separation of components with different boiling points. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a boron trifluoride methyl ether complex feed distributor for a distillation column proposed in this utility model.

[0027] Figure 2 This is a schematic diagram of the feed pipe of a boron trifluoride methyl ether complex feed distributor for a distillation column proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the packing material for a boron trifluoride methyl ether complex feed distributor in a distillation column proposed in this utility model.

[0029] Figure 4 This is a schematic diagram of the structure of the fixing block of the boron trifluoride methyl ether complex feed distributor for a distillation column proposed in this utility model.

[0030] Figure 5 This is a schematic diagram of the sieve plate structure of a boron trifluoride methyl ether complex feed distributor for a distillation column proposed in this utility model.

[0031] Legend:

[0032] 1. Tower body; 2. Inlet; 3. Vent; 4. Feed pipe; 5. Demisting plate; 6. Packing; 7. Screen plate; 8. Branch pipe; 9. Valve; 10. Nozzle; 11. Fixing block; 12. Fixing frame; 13. Slot; 14. Limiting block; 15. Spring; 16. Locking post; 17. Main pipe; 18. Packing layer; 19. Connecting flange. Detailed Implementation

[0033] 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.

[0034] Reference Figure 1 - Figure 5This utility model provides an embodiment of a boron trifluoride methyl ether complex feed distributor for a distillation column, comprising a column body 1, a vent 3 at the top of the column body 1 for discharging gaseous products or non-condensable gases generated during the distillation process to ensure stable pressure inside the column, a fixing component installed inside the column body 1, and a distribution component installed inside the column body 1; the fixing component includes a fixing block 11, which is fixedly connected inside the column body 1, a fixing frame 12 is placed on the top of the fixing block 11, a limiting block 14 is fixedly connected to the outside of the fixing frame 12, a locking post 16 is slidably connected to the middle of the limiting block 14, and a locking groove 13 is opened in the middle of the fixing block 11, which engages with the locking post 16. A spring 15 is fitted around the outer periphery of the locking post 16. The spring 15 is fixedly connected to the middle of the limiting block 14. Under the elastic force of the spring 15, the locking post 16 is tightly locked into the slot 13 of the fixing block 11, thus firmly connecting the fixing frame 12 and the fixing block 11. During installation, simply place the fixing frame 12 on the fixing block 11 and then lock the locking post 16 into the slot 13 to complete the initial fixing of the distribution component. This reduces the adjustment and positioning work during installation and improves installation efficiency. By operating the locking post 16 to disengage it from the slot 13, the distribution component can be easily removed from the inside of the tower body 1 for maintenance or component replacement. A sieve plate 7 is fixedly connected inside the tower body 1. The boron trifluoride methyl ether complex sprayed into the tower body 1 comes into full contact with the rising gas phase at the packing layer 18 and the sieve plate 7. The packing 6 increases the contact area between the gas and liquid phases, while the sieve plate 7 promotes bubbling and mass transfer between the gas and liquid phases on the tower plate. Due to the vapor pressure difference between the boron trifluoride methyl ether complexes of boron 10 and boron 11, during multiple gas-liquid equilibrium processes, boron 10 tends to accumulate more readily in the liquid phase, while boron 11 tends to accumulate more readily in the gas phase. An inlet 2 is fixedly connected to the middle of column body 1, and a demister plate 5 is fixedly connected inside column body 1. The demister plate 5 can capture liquid droplets carried in the gas phase, preventing droplets from being carried out of column body 1 with the gas phase, thereby improving product purity and the operating efficiency of the distillation column.

[0035] Reference Figure 1 - Figure 4The distribution assembly includes a feed pipe 4, which is fixedly connected to the middle of the column body 1. A main pipe 17 is fixedly connected to the outside of the feed pipe 4, and a branch pipe 8 is fixedly connected to the middle of the main pipe 17. A nozzle 10 is fixedly connected to the middle of the branch pipe 8. The boron trifluoride methyl ether complex enters the main pipe 17 through the feed pipe 4, and the main pipe 17 then distributes the material to the various branch pipes 8. This design allows the material to achieve a relatively uniform lateral distribution across the cross-section of the distillation column. The branch pipes 8 are evenly arranged, conveying the material to different positions within the column. The nozzle 10 evenly sprays the boron trifluoride methyl ether complex into fine droplets, greatly increasing the contact area between the gas and liquid phases. A valve 9 is installed in the middle of the feed pipe 4, which can regulate the feed flow rate. By controlling the opening of valve 9, the amount of boron trifluoride methyl ether complex entering the distillation column can be flexibly adjusted according to the actual operating conditions and process requirements of the distillation column, thereby optimizing the distillation process and improving production efficiency and product quality. The fixing bracket 12 is fixedly connected to the outside of the main pipe 17. A packing layer 18 is provided inside the column body 1, and packing 6 is placed inside the packing layer 18. A connecting flange 19 is provided in the middle of the branch pipe 8, which facilitates the installation, disassembly, and maintenance of the branch pipe 8. If a nozzle 10 or branch pipe 8 malfunctions or becomes blocked, it can be easily replaced or cleaned by disassembling the connecting flange 19, reducing the difficulty and time cost of equipment maintenance.

[0036] Working principle: Boron trifluoride methyl ether complex enters the tower body 1 through inlet 2, and then flows into the main pipe 17 connected to it through feed pipe 4. The main pipe 17 distributes the material to each branch pipe 8. The connecting flange 19 can ensure the sealing of the branch pipe 8 connection to prevent material leakage. Then, the boron trifluoride methyl ether complex is evenly sprayed into the interior of the tower body 1 using nozzle 10. The boron trifluoride methyl ether complex sprayed into the interior of the tower body 1 comes into full contact with the rising gas phase at the packing layer 18 and sieve plate 7. As the distillation process proceeds, the gas phase continuously rises and the liquid phase continuously falls. After multiple mass transfers and separations, boron 10 gradually accumulates in the lower part of the tower body 1.

[0037] The two ends of the main pipe 17 are fixed inside the 1 by engaging the locking post 16 with the locking groove 13 in the middle of the fixing block 11. The spring 15 sleeved on the outer periphery of the locking post 16 provides elasticity to the locking post 16, so that the locking post 16 can be tightly locked into the locking groove 13, ensuring the connection between the fixing frame 12 and the fixing block 11 is stable, thereby ensuring the stability of the distribution component inside the tower body and preventing the distribution component from shaking or shifting due to factors such as material flow.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A boron trifluoride dimethyl ether complex feed distributor for a rectification column comprising a column body (1) characterised in that: The top of the tower body (1) is provided with a vent (3), the inside of the tower body (1) is provided with a fixing assembly, and the inside of the tower body (1) is provided with a distribution assembly. The fixing assembly comprises a fixing block (11) fixedly connected to the inside of the tower body (1), a fixing frame (12) placed on the top of the fixing block (11), a limiting block (14) fixedly connected to the outside of the fixing frame (12), a clamping column (16) slidably connected to the middle of the limiting block (14), and a clamping groove (13) formed in the middle of the fixing block (11) and clamped with the clamping column (16).

2. A boron trifluoride dimethyl ether complex feed distributor for a rectification column according to claim 1, characterized in that: The clamping column (16) is sleeved with a spring (15) fixedly connected to the middle of the limiting block (14).

3. A boron trifluoride dimethyl ether complex feed distributor for a rectification column according to claim 1, characterized in that: The distribution assembly comprises a feed pipe (4) fixedly connected to the middle of the tower body (1), a main pipe (17) fixedly connected to the outside of the feed pipe (4), a branch pipe (8) fixedly connected to the middle of the main pipe (17), and a spray head (10) fixedly connected to the middle of the branch pipe (8).

4. A boron trifluoride dimethyl ether complex feed distributor for a rectification column according to claim 3, characterized in that: The middle of the feed pipe (4) is provided with a valve (9), and the fixing frame (12) is fixedly connected to the outside of the main pipe (17).

5. A boron trifluoride dimethyl ether complex feed distributor for a rectification column according to claim 1, characterized in that: The inside of the tower body (1) is provided with a packing layer (18), and the packing layer (18) is placed with packing (6).

6. A boron trifluoride dimethyl ether complex feed distributor for a rectification column according to claim 3, characterized in that: The middle of the branch pipe (8) is provided with a connecting flange (19).

7. A boron trifluoride dimethyl ether complex feed distributor for a rectification column according to claim 1, characterized in that: The inside of the tower body (1) is fixedly connected with a sieve plate (7).

8. A boron trifluoride dimethyl ether complex feed distributor for a rectification column according to claim 1, characterized in that: The middle of the tower body (1) is fixedly connected with an inlet (2), and the inside of the tower body (1) is fixedly connected with a demisting plate (5).

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