A test device for rectifying column on-line addition of complexing agent

Abstract

The utility model relates to a kind of test device of rectifying column on-line adding complexing agent, it includes liquid storage tank, the liquid storage tank is located rectifying column side, the liquid storage tank top is fixedly provided with inlet pipe, inlet valve is set to the inlet pipe outside, the liquid storage tank bottom is fixedly provided with drain pipe, electric flow valve is set to the drain pipe right side, the liquid storage tank right side is provided with ring pipe, the ring pipe is located rectifying column inside, the liquid storage tank is fixedly connected with ring pipe by drain pipe;The device can make complexing agent more extensive, more evenly distribute in rectifying column, reduce the situation that local concentration is too high or too low, ensure the uniformity and stability of complexing reaction.

Description

Technical Field

[0001] This utility model belongs to the technical field of distillation column equipment, specifically relating to a test device for online addition of complexing agents in distillation columns. Background Technology

[0002] In numerous industrial sectors such as chemical engineering, petroleum refining, and pharmaceuticals, distillation columns are crucial and widely used separation equipment. Through multiple processes of partial vaporization and partial condensation, they effectively separate the components in a mixture, thereby obtaining high-purity products.

[0003] However, in certain chemical production processes, raw materials or intermediate products may contain impurities that can affect the separation efficiency and product quality of distillation columns. To address this issue, complexing agents are often added to the distillation column. Complexing agents can react with impurities to form stable complexes, thereby altering the physical and chemical properties of the impurities and making them easier to separate or remove from the system.

[0004] Currently, there is a problem with precisely controlling the amount of complexing agents added to distillation columns. Furthermore, complexing agents may precipitate or separate during storage, affecting their dispersion and reaction efficiency within the distillation column. Summary of the Invention

[0005] The purpose of this invention is to provide a test device for online addition of complexing agents in a distillation column, in order to solve the problems mentioned in the background art.

[0006] The purpose of this utility model is achieved as follows: a test device for online addition of complexing agents in a distillation column, comprising a storage tank located beside the distillation column, an inlet pipe fixedly installed at the top of the storage tank, an inlet valve installed outside the inlet pipe, a drain pipe fixedly installed at the bottom of the storage tank, an electric flow valve installed on the right side of the drain pipe, and a ring pipe installed on the right side of the storage tank, the ring pipe being located inside the distillation column, and the storage tank being fixedly connected to the ring pipe through the drain pipe.

[0007] A viewing window is provided on the outside of the liquid storage tank to facilitate observation of the internal conditions of the tank.

[0008] A level gauge is installed on the side of the storage tank. The level gauge can be used to check the liquid level inside the storage tank.

[0009] The bottom of the liquid storage tank is conical, and the drain pipe is located at the lowest point of the liquid storage tank.

[0010] A drain valve is installed on the lower side of the drain pipe. The liquid inside the storage tank can be emptied through the drain valve.

[0011] Distribution pipes are symmetrically arranged on the front, back, left and right sides of the ring pipe. A switch valve is provided between the distribution pipe and the ring pipe. A dispersion nozzle is provided on the lower side of the distribution pipe.

[0012] The liquid storage tank is equipped with a stirring mechanism, which includes a support frame located on the upper outer side of the liquid storage tank. An electric motor is installed inside the support frame, and a stirring shaft is installed at the output end of the electric motor. The stirring shaft is located inside the liquid storage tank, and a spiral blade is installed on the lower side of the stirring shaft. Side rods are fixedly installed on both the left and right sides of the stirring shaft, and a stirrer is fixedly installed on the outer side of the side rods.

[0013] The stirrer includes a horizontal plate and an inclined plate, which are fixedly connected at right angles.

[0014] The outer surface of the liquid storage tank is equipped with a heat tracing cable. The heat tracing cable facilitates the temperature regulation of the liquid storage tank.

[0015] The beneficial effects of this invention are: by setting an electric flow valve, the addition flow rate of the complexing agent can be precisely controlled in real time, and the amount of complexing agent added can be dynamically adjusted according to the real-time operating parameters of the distillation column and the composition of the raw materials, so as to ensure the stability of the complexing effect and the consistency of product quality.

[0016] The distribution pipes and dispersion nozzles are symmetrically arranged on the front, rear, left, and right sides of the ring pipe, which can uniformly spray the complexing agent into the distillation column. Alternatively, the complexing agent can be added to specific areas to achieve zoned control of the complexing agent addition. This ensures that the complexing agent fully contacts and reacts with impurities, improving the uniformity of the complexation reaction and the overall separation effect.

[0017] A stirring mechanism, including a spiral blade and a stirrer with a horizontal and inclined plate, is installed inside the storage tank to fully stir the complexing agent, prevent precipitation and stratification during storage, ensure the uniformity of the complexing agent, and improve its dispersion effect and reaction efficiency in the distillation column. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of an experimental device for online addition of complexing agents to a distillation column according to this utility model.

[0019] Figure 2 This is a diagram of the ring pipe structure of an experimental device for online addition of complexing agents to a distillation column according to this utility model.

[0020] Figure 3 This is a structural diagram of the stirring mechanism of an experimental device for online addition of complexing agents to a distillation column according to this utility model.

[0021] Figure 4 This is a structural diagram of the stirrer of an experimental device for online addition of complexing agents to a distillation column according to this utility model.

[0022] In the diagram: 1. Storage tank; 2. Inlet pipe; 3. Inlet valve; 4. Drain pipe; 5. Electric flow valve; 6. Drain valve; 7. Level gauge; 8. Viewing window; 9. Ring pipe; 10. Distribution pipe; 11. Switch valve; 12. Dispersion nozzle; 13. Stirring mechanism; 14. Support; 15. Electric motor; 16. Stirring shaft; 17. Side rod; 18. Stirrer; 19. Horizontal plate; 20. Inclined plate; 21. Spiral blade; 22. Heating tape. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Example 1

[0025] like Figure 1-2 As shown, an experimental apparatus for online addition of complexing agents in a distillation column includes a storage tank 1 located beside the distillation column. An inlet pipe 2 is fixedly installed at the top of the storage tank 1, and an inlet valve 3 is installed outside the inlet pipe 2. A drain pipe 4 is fixedly installed at the bottom of the storage tank 1, and an electric flow valve 5 is installed to the right of the drain pipe 4. A ring pipe 9 is installed to the right of the storage tank 1, and the ring pipe 9 is located inside the distillation column. The storage tank 1 is fixedly connected to the ring pipe 9 via the drain pipe 4.

[0026] For better results, a viewing window 8 is provided on the outside of the liquid storage tank 1 to facilitate observation of the internal condition of the liquid storage tank 1.

[0027] For better performance, a level gauge 7 is installed on the side of the liquid storage tank 1. The level gauge 7 can be used to check the liquid level inside the liquid storage tank 1.

[0028] The viewing window 8 on the outside of the liquid storage tank 1 and the level gauge 7 on the side provide operators with intuitive means of observation and monitoring.

[0029] For better results, the bottom of the storage tank 1 is conical, and the drain pipe 4 is located at the lowest point of the storage tank 1. This structure facilitates the complete discharge of the complexing agent.

[0030] For better results, a drain valve 6 is provided on the lower side of the drain pipe 4. In some cases, the liquid inside the storage tank 1 can be emptied through the drain valve 6.

[0031] For better results, distribution pipes 10 are symmetrically arranged on the front, back, left and right sides of the ring pipe 9. A switching valve 11 is provided between the distribution pipe 10 and the ring pipe 9. A dispersion nozzle 12 is provided on the lower side of the distribution pipe 10.

[0032] In use, this invention involves selecting a suitable complexing agent based on the properties and separation requirements of the material being processed in the distillation column, and then slowly injecting the complexing agent into the storage tank 1 through the inlet pipe 2 using a conveying tool. The area requiring complexing agent addition is determined based on the distribution of impurities within the distillation column and the separation requirements. The appropriate distribution pipe 10 is selected by opening or closing the corresponding valve 11 between the distribution pipe 10 and the ring pipe 9. The appropriate complexing agent addition flow rate is set via the control panel of the electric flow valve 5 based on the distillation column's throughput, raw material composition, and complexing agent addition ratio. After confirming the settings are correct, the electric flow valve 5 is slowly opened, allowing the complexing agent to enter the ring pipe 9 from the storage tank 1 through the drain pipe 4, and then be evenly sprayed into the distillation column through the distribution pipe 10 and the dispersing nozzle 12.

[0033] Example 2

[0034] like Figure 1-4 As shown, an experimental apparatus for online addition of complexing agents in a distillation column includes a storage tank 1 located beside the distillation column. An inlet pipe 2 is fixedly installed at the top of the storage tank 1, and an inlet valve 3 is installed outside the inlet pipe 2. A drain pipe 4 is fixedly installed at the bottom of the storage tank 1, and an electric flow valve 5 is installed to the right of the drain pipe 4. A ring pipe 9 is installed to the right of the storage tank 1, and the ring pipe 9 is located inside the distillation column. The storage tank 1 is fixedly connected to the ring pipe 9 via the drain pipe 4.

[0035] For better results, a viewing window 8 is provided on the outside of the liquid storage tank 1 to facilitate observation of the internal condition of the liquid storage tank 1.

[0036] For better performance, a level gauge 7 is installed on the side of the liquid storage tank 1. The level gauge 7 can be used to check the liquid level inside the liquid storage tank 1.

[0037] The viewing window 8 on the outside of the liquid storage tank 1 and the level gauge 7 on the side provide operators with intuitive means of observation and monitoring.

[0038] For better results, the bottom of the storage tank 1 is conical, and the drain pipe 4 is located at the lowest point of the storage tank 1. This structure facilitates the complete discharge of the complexing agent.

[0039] For better results, a drain valve 6 is provided on the lower side of the drain pipe 4. In some cases, the liquid inside the storage tank 1 can be emptied through the drain valve 6.

[0040] For better results, distribution pipes 10 are symmetrically arranged on the front, back, left and right sides of the ring pipe 9. A switching valve 11 is provided between the distribution pipe 10 and the ring pipe 9. A dispersion nozzle 12 is provided on the lower side of the distribution pipe 10.

[0041] For better results, a stirring mechanism 13 is provided inside the liquid storage tank 1. The stirring mechanism 13 includes a support 14, which is located on the upper part of the outer side of the liquid storage tank 1. A motor 15 is provided inside the support 14. A stirring shaft 16 is provided at the output end of the motor 15. The stirring shaft 16 is located inside the liquid storage tank 1. A spiral blade 21 is provided on the lower side of the stirring shaft 16. Side rods 17 are fixedly provided on both the left and right sides of the stirring shaft 16. A stirrer 18 is fixedly provided on the outer side of the side rods 17.

[0042] For better results, the stirrer 18 includes a horizontal plate 19 and an inclined plate 20, which are fixedly connected at right angles.

[0043] For better results, a heat tracing tape 22 is provided on the outer surface of the storage tank 1. This tape can provide a suitable temperature environment for the complexing agent as needed, preventing it from decomposing and deteriorating at high temperatures or crystallizing and solidifying at low temperatures, thus ensuring the stability of the complexing agent's performance.

[0044] In another embodiment of this invention, a stirring mechanism 13 is provided inside the storage tank 1. The stirring mechanism 13 inside the storage tank 1 effectively prevents the complexing agent from settling and stratifying during storage. The motor 15 drives the stirring shaft 16 to rotate, and the spiral blades 21 on the lower side of the stirring shaft 16 stir the complexing agent at the bottom of the storage tank 1, causing it to tumble upwards. The side rods 17 and stirrers 18 on both sides of the stirring shaft 16, under the action of the horizontal plate 19 and the inclined plate 20, can expand the stirring range and enhance the stirring effect. This comprehensive stirring action ensures that the complexing agent remains uniform in the storage tank 1, ensuring that the composition of the complexing agent added to the distillation column is consistent each time, thereby improving the stability and reliability of the complexation reaction.

Claims

1. A test apparatus for online addition of a complexing agent to a distillation column, comprising a storage tank located beside the distillation column, characterized in that: The liquid storage tank is fixedly equipped with an inlet pipe at the top, and an inlet valve is installed on the outside of the inlet pipe. The liquid storage tank is fixedly equipped with a drain pipe at the bottom, and an electric flow valve is installed on the right side of the drain pipe. A ring pipe is installed on the right side of the liquid storage tank. The ring pipe is located inside the distillation column, and the liquid storage tank is fixedly connected to the ring pipe through the drain pipe.

2. The experimental apparatus for online addition of complexing agents in a distillation column according to claim 1, characterized in that: A viewing window is provided on the outside of the liquid storage tank.

3. The experimental apparatus for online addition of complexing agents in a distillation column according to claim 2, characterized in that: A level gauge is installed on the side of the liquid storage tank.

4. The experimental apparatus for online addition of complexing agents in a distillation column according to claim 3, characterized in that: The bottom of the liquid storage tank is conical, and the drain pipe is located at the lowest point of the liquid storage tank.

5. The experimental apparatus for online addition of complexing agents in a distillation column according to claim 4, characterized in that: A drain valve is provided on the lower side of the drain pipe.

6. The experimental apparatus for online addition of complexing agents in a distillation column according to claim 5, characterized in that: Distribution pipes are symmetrically arranged on the front, back, left and right sides of the ring pipe. A switch valve is provided between the distribution pipe and the ring pipe. A dispersion nozzle is provided on the lower side of the distribution pipe.

7. The experimental apparatus for online addition of complexing agents in a distillation column according to claim 1, characterized in that: The liquid storage tank is equipped with a stirring mechanism, which includes a support frame located on the upper outer side of the liquid storage tank. An electric motor is installed inside the support frame, and a stirring shaft is installed at the output end of the electric motor. The stirring shaft is located inside the liquid storage tank, and a spiral blade is installed on the lower side of the stirring shaft. Side rods are fixedly installed on both the left and right sides of the stirring shaft, and a stirrer is fixedly installed on the outer side of the side rods.

8. The experimental apparatus for online addition of complexing agents in a distillation column according to claim 7, characterized in that: The stirrer includes a horizontal plate and an inclined plate, which are fixedly connected at right angles.

9. The experimental apparatus for online addition of complexing agents in a distillation column according to claim 8, characterized in that: The outer surface of the liquid storage tank is provided with a heat tracing cable.

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