Methylamine gas organic solution absorption device

Abstract

This utility model provides a device for absorbing methylamine gas in an organic solution, relating to the technical field of gas absorption devices. It includes a support base with a working chamber welded to its upper end and a top cover installed at the top of the working chamber. Through the pre-dispersion component, the uniform dispersion and optimized guidance of methylamine gas are achieved via a dispersion plate and guide holes. This component initially disperses the incoming methylamine gas and guides it through inclined guide holes, causing it to form a swirling motion within the working chamber. This results in a more uniform gas distribution within the working chamber, preventing localized gas concentration. Furthermore, the swirling characteristics further enhance the relative motion and mixing effect between the gas and liquid, extending the gas-liquid contact time. The pre-dispersion component and the turbulence-promoting component work synergistically to provide a uniform gas distribution foundation for the entire absorption process. By optimizing the gas-liquid contact conditions, the absorption efficiency is significantly improved, achieving a highly efficient and stable methylamine gas absorption effect.

Description

Technical Field

[0001] This utility model relates to the technical field of gas absorption devices, and in particular to a device for absorbing methylamine gas in an organic solution. Background Technology

[0002] Methylamine is a colorless gas with a strong fishy odor, high toxicity, flammability, explosiveness, and alkalinity. Its physical and chemical properties determine that it poses significant hazards to the environment and human health. Due to its toxicity, it can cause poisoning; its flammability can cause fires and explosions; and its pungent odor affects air quality. Therefore, absorption devices must be used to treat methylamine-containing gases during industrial production, storage, and use. These devices are not only for complying with environmental and safety regulations and reducing pollution to the atmosphere and ecosystems, but also for protecting the occupational health and safety of workers, reducing the concentration of methylamine in the working environment, eliminating potential explosion risks by capturing leaked gas, ensuring the safe operation of production facilities, and sometimes even enabling the recovery and utilization of methylamine resources. Therefore, methylamine gas absorption devices are key equipment for controlling its hazards, ensuring safe production, and meeting regulatory requirements.

[0003] A search revealed that the document with publication number "CN217795381U" mentions "This utility model discloses a six-stage trimethylamine gas absorption device, including a base plate, a filter box, a filter plate, an air pump, an exhaust pipe, a jet pipe, a support, an absorption box, a water pump, a water exchange pipe, and an exhaust pipe. The filter box is fixedly installed on the upper part of the base plate, and the filter box has a chamber inside. The filter plate is fixedly installed in the chamber of the filter box, and the filter plate has multiple sets of filter holes. It also includes an inlet pipe, a water delivery pipe, a connector A, a breather plate, a drain pipe, an outlet pipe, a spray pipe, a gas delivery device, and a rotating device. The input end of the gas delivery device is connected to the filter..." The lower part of the chamber is connected, and the output end of the gas delivery device is located inside the cavity of the absorption box. The output end of the water pump is connected to the input end of connector A through the water inlet pipe and the water delivery pipe. This utility model increases the contact area between the organic solution and the air, allowing the air to fully contact the organic solution, improving the absorption effect of amine gas, reducing the concentration of amine gas in the air, and exhibiting high environmental friendliness and practicality. In use, it increases the contact area between the organic solution and the air, allowing the air to fully contact the organic solution, improving the absorption effect of amine gas, reducing the concentration of amine gas in the air, and exhibiting high environmental friendliness and practicality.

[0004] However, in existing methylamine gas absorption devices, the liquid flow distribution is not uniform enough, and local liquid flow concentration or sparse distribution is prone to occur. This results in methylamine gas in some areas not being able to fully contact the organic solution, thereby reducing the absorption efficiency. At the same time, methylamine gas will enter the working chamber directly, and the gas will concentrate in local areas and be unevenly distributed, failing to be evenly distributed throughout the entire working chamber. This leads to insufficient gas-liquid contact, poor gas-liquid mixing effect, and low absorption efficiency.

[0005] Therefore, we provide a methylamine gas organic solution absorption device to solve the above problems. Utility Model Content

[0006] To overcome the above deficiencies, this invention provides a methylamine gas organic solution absorption device, which aims to solve the aforementioned problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A methylamine gas organic solution absorption device includes a support base, a working chamber welded to the upper end of the support base, a top cover installed on the top of the working chamber, an organic solution injection pipe installed on the outer surface of the working chamber, a liquid distributor installed at the lower end of the organic solution injection pipe, a turbulence promoting component disposed below the liquid distributor, the turbulence promoting component including a connecting frame disposed below the liquid distributor, a grid plate installed on the inner side of the connecting frame, a pre-dispersion component installed on the inner side of the working chamber, the pre-dispersion component including a pre-dispersion plate installed on the inner side of the working chamber, and a guide hole provided at the upper end of the pre-dispersion plate.

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

[0010] A drainage pipe is installed at the upper end of the top cover, and a drainage fan is fixedly connected to the other end of the drainage pipe. An exhaust port is installed on the surface of the drainage fan, and a drive motor is connected to the inner side of the drainage fan via a key. An organic solution outlet pipe is installed at the bottom of the working chamber.

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

[0012] The organic solution injection pipe is fixedly connected to the liquid distributor by bolts. The liquid distributor adopts a trough structure, which consists of a long main trough and nine groups of evenly distributed radial branch troughs, and the lower surface of the branch troughs is provided with small holes.

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

[0014] The grid panels are welded to the connecting frame, and there are a total of fourteen sets of grid panels.

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

[0016] A filler layer is provided below the connecting frame. The filler layer is composed of plastic Pall rings, and a mesh base plate is provided below the filler layer.

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

[0018] The surface of the pre-dispersed plate is provided with drop holes, the guide holes are at a certain distance from the pre-dispersed plate, and the guide holes are arranged in groups of five, for a total of sixteen groups. The lower surface of the pre-dispersed plate is welded with dispersion pipes, and the dispersion pipes are arranged in groups of sixteen.

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

[0020] The lower end of the dispersion pipe is equipped with a methylamine gas inlet pipe, and an organic solution collection chamber is provided below the methylamine gas inlet pipe.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. This utility model, by setting up a turbulence-promoting component, utilizes multiple sets of horizontally arranged grids to form a louver-like structure, which can effectively cut the liquid flow and change its direction, generating turbulence, thereby significantly increasing the gas-liquid contact area and enhancing the mass transfer effect. This structure not only makes the liquid flow distribution more uniform, avoiding the problem of local liquid flow concentration or uneven distribution, but also ensures the efficient absorption reaction of methylamine gas and organic solution, significantly improving the overall absorption efficiency and stability of the device.

[0023] 2. This utility model, through the setting of the pre-dispersion component, achieves uniform dispersion and optimized guidance of methylamine gas through the dispersion plate and guide holes. It initially disperses the incoming methylamine gas and guides the gas through the inclined guide holes, causing it to form a swirling motion in the working chamber, making the gas distribution in the working chamber more uniform and avoiding local gas concentration. Furthermore, the swirling characteristics further enhance the relative motion and mixing effect between gas and liquid, prolonging the gas-liquid contact time. The pre-dispersion component and the turbulence promotion component work together to provide a uniform gas distribution basis for the entire absorption process. By optimizing the gas-liquid contact conditions, the absorption efficiency is significantly improved, achieving a highly efficient and stable methylamine gas absorption effect. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the overall bottom view of the present invention;

[0026] Figure 3 This is a schematic diagram of the overall internal structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the overall disassembled structure of this utility model;

[0028] Figure 5This is a schematic diagram of the combined structure of the organic solution injection pipe, liquid distributor, turbulence promotion component, packing layer, mesh base plate and pre-dispersion component of this utility model;

[0029] Figure 6 This is a schematic diagram of the pre-dispersion component structure of this utility model.

[0030] The following are labeled in the diagram: 1. Support base; 2. Working chamber; 3. Top cover; 4. Drainage pipe; 5. Drainage fan; 6. Exhaust port; 7. Drive motor; 8. Organic solution outlet pipe; 9. Organic solution injection pipe; 10. Liquid distributor; 11. Turbulence promotion component; 1101. Connecting frame; 1102. Grid plate; 12. Packing layer; 13. Mesh base plate; 14. Pre-dispersion component; 1401. Pre-dispersion plate; 1402. Drainage hole; 1403. Dispersion pipe; 15. Methylamine gas inlet pipe; 16. Organic solution collection chamber. Detailed Implementation

[0031] 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.

[0032] Please see Figure 1-6 As shown, this utility model provides a technical solution: a methylamine gas organic solution absorption device, including a support base 1, a working chamber 2 welded to the upper end of the support base 1, a top cover 3 installed at the top of the working chamber 2, an organic solution injection pipe 9 installed on the outer surface of the working chamber 2, a liquid distributor 10 installed at the lower end of the organic solution injection pipe 9, a turbulence promoting component 11 arranged below the liquid distributor 10, the turbulence promoting component 11 including a connecting frame 1101 arranged below the liquid distributor 10, a grid plate 1102 installed on the inner side of the connecting frame 1101, a pre-dispersion component 14 installed on the inner side of the working chamber 2, the pre-dispersion component 14 including a pre-dispersion plate 1401 installed on the inner side of the working chamber 2, and a guide hole 1402 provided at the upper end of the pre-dispersion plate 1401.

[0033] Furthermore, a diversion pipe 4 is installed at the upper end of the top cover 3, and a diversion fan 5 is fixedly connected to the other end of the diversion pipe 4. An exhaust port 6 is installed on the surface of the diversion fan 5, and a drive motor 7 is connected to the inner side of the diversion fan 5. An organic solution outlet pipe 8 is installed at the bottom of the working chamber 2. When methylamine gas is introduced into the methylamine gas inlet pipe 15, the drive motor 7 drives the diversion fan 5 to work. Then, through the action of the diversion pipe 4, the methylamine gas is drawn from bottom to top inside the working chamber 2 to absorb the organic solution. Finally, the treated methylamine gas enters the diversion fan 5 along the diversion pipe 4 and is discharged through the exhaust port 6, which speeds up the overall working efficiency of the device, accelerates the flow of methylamine gas, and promotes the gas absorption process.

[0034] Furthermore, the organic solution injection pipe 9 is fixedly connected to the liquid distributor 10 by bolts. The liquid distributor 10 adopts a trough structure, consisting of a long main trough and nine evenly distributed radial branch troughs. The lower surface of the branch troughs is provided with small holes. The organic absorbent solution is injected into the long main trough of the liquid distributor 10 through the organic solution injection pipe 9, and then distributed to the nine branch troughs. The organic solution is evenly sprayed onto the top of the packing layer 12 below through the small holes on the lower surface of the branch troughs.

[0035] Furthermore, the grid plate 1102 is welded to the connecting frame 1101. There are fourteen sets of grid plates 1102. The turbulence promoting component 11 is composed of multiple horizontally arranged grid plates 1102, forming a structure similar to a louver. Then, by increasing the resistance of gas-liquid flow through multiple sets of grid plates 1102, the fluid is forced to change direction, thereby generating turbulence.

[0036] Furthermore, a packing layer 12 is provided below the connecting frame 1101. The packing layer 12 is composed of plastic Pall rings. A mesh base plate 13 is provided below the packing layer 12. The organic solution above falls onto the upper layer of the packing layer 12 through the turbulence promoting component 11. The packing layer 12 composed of plastic Pall rings can increase the gas-liquid contact area, allowing for full contact between the gas and liquid and the absorption reaction to occur. The mesh base plate 13 supports the packing layer 12, preventing it from sinking, and at the same time facilitates the flow and discharge of the organic absorption solution, ensuring the smooth progress of the absorption process and improving the absorption efficiency.

[0037] Furthermore, the surface of the pre-dispersion plate 1401 is provided with drop holes, and the guide holes 1402 are at a 45-degree angle to the pre-dispersion plate 1401. The guide holes 1402 are arranged in groups of five, for a total of sixteen groups. The lower surface of the pre-dispersion plate 1401 is welded with dispersion pipes 1403, and there are sixteen groups of dispersion pipes 1403. Methylamine gas is injected into the pre-dispersion plate 1401 from the methylamine gas inlet pipe 15. Then, the pre-dispersion plate 1401 disperses the methylamine gas into different pipes and guides the gas through the inclined guide holes 1402, so that it forms a swirling motion in the working chamber 2, making the gas distribution in the working chamber 2 more uniform. Then, under the action of the induced flow fan 5, it enters the packing layer 12 and comes into contact with the organic absorption solution.

[0038] Furthermore, a methylamine gas inlet pipe 15 is installed at the lower end of the dispersion pipe 1403, and an organic solution collection chamber 16 is provided below the methylamine gas inlet pipe 15. The organic absorption solution after contacting and absorbing methylamine gas in the packing layer 12 enters the organic solution collection chamber 16 through the drop hole opened on the surface of the pre-dispersion plate 1401, and is finally discharged through the organic solution outlet pipe 8 at the bottom of the working chamber 2.

[0039] Working Principle: The device is installed in its working position. Methylamine gas enters through the methylamine gas inlet pipe 15, first reaching the pre-dispersion plate 1401 of the pre-dispersion component 14. The pre-dispersion plate 1401 initially disperses the incoming methylamine gas and guides it through the guide hole 1402 to the dispersion pipe 1403. The dispersion pipe 1403 further evenly distributes the gas into the working chamber 2. The dispersed methylamine gas rises within the working chamber 2. The organic absorption solution enters the elongated main tank of the liquid distributor 10 through the organic solution injection pipe 9, and is then evenly distributed to nine sets of radial branch tanks. Finally, it is evenly sprayed above the turbulence promoting component 11 through small holes on the lower surface of the branch tanks. The sprayed organic solution first flows through the turbulence promoting component 11, forcing the falling liquid flow to change direction and generate turbulence. It then enters the lower packing layer 12, where the methylamine gas... The gas comes into full contact with the organic solution, and an absorption reaction occurs. Methylamine is dissolved under the action of the organic solution or reacts easily with the organic solution and mixes with it. The organic solution that has absorbed methylamine passes through the packing layer 12, through the mesh bottom plate 13, and then through the drop holes on the surface of the pre-dispersion plate 1401, finally collecting in the organic solution collection chamber 16 below. The absorbent in the organic solution collection chamber 16 is discharged through the organic solution outlet pipe 8 at the bottom of the working chamber 2, completing one absorption cycle. Throughout the process, the drainage pipe 4 on the top cover 3 is connected to the drainage fan 5. The drive motor 7 drives the drainage fan 5 to operate, forming a negative pressure at the top of the working chamber 2, continuously drawing methylamine gas from bottom to top. The relatively clean gas after absorption treatment enters the drainage fan 5 through the drainage pipe 4 and is finally discharged from the exhaust port 6. This completes the use process of a methylamine gas organic solution absorption device.

[0040] 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 device for absorbing methylamine gas in an organic solution, comprising a support base (1), characterized in that: The upper end of the support base (1) is welded with a working chamber (2), the top of the working chamber (2) is equipped with a top cover (3), an organic solution injection pipe (9) is installed on the outer surface of the working chamber (2), a liquid distributor (10) is installed at the lower end of the organic solution injection pipe (9), a turbulence promotion component (11) is provided below the liquid distributor (10), the turbulence promotion component (11) includes a connecting frame (1101) provided below the liquid distributor (10), a grid plate (1102) is installed on the inner side of the connecting frame (1101), a pre-dispersion component (14) is installed on the inner side of the working chamber (2), the pre-dispersion component (14) includes a pre-dispersion plate (1401) installed on the inner side of the working chamber (2), and a guide hole (1402) is provided at the upper end of the pre-dispersion plate (1401).

2. The methylamine gas organic solution absorption device according to claim 1, characterized in that, The top cover (3) is equipped with a drainage pipe (4) at the upper end, and a drainage fan (5) is fixedly connected to the other end of the drainage pipe (4). An exhaust port (6) is installed on the surface of the drainage fan (5). A drive motor (7) is connected to the inner side of the drainage fan (5). An organic solution outlet pipe (8) is installed at the bottom of the working chamber (2).

3. The methylamine gas organic solution absorption device according to claim 1, characterized in that, The organic solution injection pipe (9) and the liquid distributor (10) are fixedly connected by bolts. The liquid distributor (10) adopts a trough structure. The liquid distributor (10) consists of a long main trough and nine evenly distributed radial branch troughs, and small holes are provided on the lower surface of the branch troughs.

4. The methylamine gas organic solution absorption device according to claim 1, characterized in that, The grid sheet (1102) and the connecting frame (1101) are welded together, and a total of fourteen sets of grid sheets (1102) are provided.

5. The methylamine gas organic solution absorption device according to claim 1, characterized in that, A filler layer (12) is provided below the connecting frame (1101), the filler layer (12) is composed of plastic Pall rings, and a mesh base plate (13) is provided below the filler layer (12).

6. The methylamine gas organic solution absorption device according to claim 1, characterized in that, The surface of the pre-dispersion plate (1401) is provided with drop holes. The guide holes (1402) are at a 45-degree angle to the pre-dispersion plate (1401). The guide holes (1402) are arranged in groups of five, for a total of sixteen groups. The lower surface of the pre-dispersion plate (1401) is welded with dispersion pipes (1403), and there are sixteen groups of dispersion pipes (1403).

7. The methylamine gas organic solution absorption device according to claim 6, characterized in that, The lower end of the dispersion pipe (1403) is equipped with a methylamine gas inlet pipe (15), and an organic solution storage chamber (16) is provided below the methylamine gas inlet pipe (15).

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