Low energy consumption chemical light removal column

Abstract

This invention relates to the field of chemical equipment technology, specifically a low-energy chemical light-weight removal tower: comprising a tower body, a fan, and a motor. The fan is vertically installed inside the tower body, and there are one or more fans. The motor is fixedly connected to the outer wall of the tower body, and its output end penetrates the tower wall and is fixedly connected to one of the fans. Adjacent fan blades are in contact with each other. A chamber is formed inside each fan blade, and the chamber is filled with metal packing. Symmetrical liquid inlet holes are formed on the chamber walls, and the liquid inlets communicate with the chambers. This invention, through the application of fans and the design of the fan blade chambers, increases the gas-liquid contact time and improves the gas-liquid contact area, thereby enhancing the mass transfer effect of the light-weight removal tower.

Description

Technical Field

[0001] This invention relates to the field of chemical equipment technology, specifically a low-energy chemical light-removal tower. Background Technology

[0002] In chemical equipment, distillation columns are a very common type of equipment, and light component removal columns are a type of distillation column. Light component removal columns utilize the property that the components in a mixture have different volatility, that is, different vapor pressures of the components at the same temperature, to transfer the light components in the liquid phase to the gas phase, while the heavy components in the gas phase are transferred to the liquid phase, thereby achieving the purpose of separation.

[0003] In existing light-weight gas removal towers, the metal packing inside the tower serves as the contact surface between the gas and liquid. The tower bottom has vents, and the top has a liquid inlet. Mass transfer occurs through the packing layer. However, in the operation of existing light-weight gas removal towers, the fixed metal packing layer limits the contact between the gas and liquid, leading to insufficient mass transfer efficiency and quality. Furthermore, during liquid inflow, the liquid tends to accumulate towards the tower wall, causing wall flow. This wall flow results in uneven gas-liquid distribution, further impairing mass transfer performance.

[0004] In view of this, in order to overcome the above-mentioned technical problems, the present invention designs a low-energy chemical light removal tower, which solves the above-mentioned technical problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that in the existing light-weight removal tower operation process, due to the fixed metal packing layer, the gas and liquid contact is insufficient, which affects the efficiency and quality of mass transfer. Moreover, during the process of liquid flowing into the tower body, the liquid tends to gradually accumulate towards the tower wall, resulting in wall flow phenomenon. Wall flow phenomenon causes uneven gas-liquid distribution, resulting in poor mass transfer effect.

[0006] This invention provides a low-energy chemical light-weight removal tower, comprising a tower body, a fan, and a motor. The fan is vertically installed inside the tower body, and the number of fans is one or more. The motor is fixedly connected to the outer wall of the tower body, and the motor output end penetrates the tower body wall and is fixedly connected to one of the fans. Adjacent fan blades are in contact with each other. A chamber is formed inside each fan blade, and the chamber is filled with metal packing. Symmetrical liquid inlet holes are formed on the chamber wall, and the liquid inlets communicate with the chambers.

[0007] The tower body has an air outlet at the top and a liquid inlet on one side. A circulation pipe is provided on the side of the tower body away from the liquid inlet and connected to the bottom of the tower. An electrically controlled valve is provided on the side of the circulation pipe near the bottom of the tower. The liquid in the circulation pipe is returned to the tower body by a water pump. An air inlet is provided on one side of the bottom of the tower. An oil-proof and breathable membrane is provided at the end of the air inlet near the inner wall of the tower body.

[0008] Preferably, the fan blade is made of a rigid material, and the inner diameter of the end of the inlet hole on the fan blade away from the chamber is larger than the inner diameter of the end of the inlet hole closer to the chamber.

[0009] Preferably, one or more protruding air bladders are vertically provided on the tower wall located on the side of the liquid inlet inside the tower body. The surface of the air bladder has two symmetrical liquid holes, and the end of the air bladder away from the inner wall of the tower body has an air outlet. A ventilation channel is provided in the tower wall in contact with the air bladder. One end of the ventilation channel is connected to the air bladder, and the end of the ventilation channel away from the air bladder is connected to the air inlet.

[0010] Preferably, the end of the fan blade furthest from the fan is wrapped with a cushioning sponge.

[0011] Preferably, one or more springs are fixedly connected to the tower wall on the side away from the liquid inlet inside the tower body, and a stop block is fixedly connected to the end of the spring away from the tower wall, and the stop block is in contact with the buffer sponge.

[0012] Preferably, the motor speed is 15 r / min.

[0013] The beneficial effects of this invention are as follows:

[0014] 1. The present invention provides a low-energy chemical light-weight removal tower, which increases the gas-liquid contact time and the gas-liquid contact area by using a fan and designing the fan blade chamber, thereby improving the mass transfer effect of the light-weight removal tower.

[0015] 2. The present invention provides a low-energy chemical light-weight removal tower, which reduces the probability of wall flow on the inner wall of the tower by setting air bladders on the inner wall of the tower, thereby reducing the uneven distribution of gas and liquid, further increasing the contact area and contact time between gas and liquid, and further improving the mass transfer effect. Attached Figure Description

[0016] The invention will now be further described with reference to the accompanying drawings.

[0017] Figure 1 This is the front view of the present invention;

[0018] Figure 2 This is a side view of the present invention;

[0019] Figure 3 This is a cross-sectional view of the fan;

[0020] Figure 4 yes Figure 1 A magnified view of a section at point A in the middle;

[0021] In the diagram: 1. Tower body; 2. Fan; 3. Fan blade; 4. Air outlet; 5. Liquid inlet; 6. Circulation pipe; 7. Water pump; 8. Electrically controlled valve; 9. Air inlet; 10. Ventilation duct; 11. Airbag; 12. Baffle; 13. Spring; 14. Motor; 15. Oil-proof and breathable membrane; 31. Buffer sponge; 32. Liquid inlet hole; 33. Chamber; 34. Metal packing; 35. Chamber wall; 111. Liquid hole; 112. Air outlet. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] This invention provides a low-energy chemical light-weight removal tower, comprising a tower body 1, a fan 2, and a motor 14. The fan 2 is vertically installed inside the tower body 1, and there are one or more fans 2. The motor 14 is fixedly connected to the outer wall of the tower body 1, and the output end of the motor 14 penetrates the tower wall of the tower body 1 and is fixedly connected to one of the fans 2. The blades 3 of two adjacent fans 2 are in contact with each other. A chamber 33 is formed inside the blade 3, and the chamber 33 is filled with metal packing material 34. Inlet holes 32 are symmetrically formed on the chamber wall 35 of the chamber 33, and the inlet 5 communicates with the chamber 33.

[0024] The top of the tower body 1 is provided with an air outlet 4, and the side of the tower body 1 is provided with a liquid inlet 5. The side of the tower body 1 away from the liquid inlet 5 is provided with a circulation pipe 6 connected to the bottom of the tower. The side of the circulation pipe 6 near the bottom of the tower is provided with an electrically controlled valve 8. The liquid in the circulation pipe 6 is returned to the tower body 1 by a water pump 7. The side of the bottom of the tower is provided with an air inlet 9, and the end of the air inlet 9 near the inner wall of the tower body 1 is provided with an oil-proof and breathable membrane 15.

[0025] After the liquid enters the tower body 1 through the liquid inlet 5, the motor 14 and the air inlet 9 start operating. The output of the motor 14 drives the fan 2 to rotate. While the fan 2 connected to the output of the motor 14 is rotating, the fan blade 3 contacts the fan blades 3 of other fans 2 and provides power, causing the other fans 2 to start rotating. As the liquid falls from the top of the tower to the bottom, it comes into contact with the rotating fan blades 3, causing the liquid to spread and increasing the contact area between the liquid and the gas, thereby improving the mass transfer effect. As the liquid splashes out, some of the liquid flows into the fan blade 3 chamber 33 through the liquid inlet 32 ​​on the fan blade 3, adhering to the metal packing 34 in the chamber 33, increasing the contact area between the liquid and the metal packing 34. As the gas... As the liquid gradually rises, the gas also enters the chamber 33 of the fan blade 3 through the liquid inlet 32, and comes into contact with the metal packing 34, further enhancing the mass transfer effect by allowing the liquid and gas to fully contact each other within the chamber 33. During the rotation of the fan blade 3, the metal packing 34 in the chamber 33 will continuously sway, further increasing the contact area between the gas, liquid and metal packing 34, thereby further improving the mass transfer effect. The liquid adhering to the metal packing 34 will also flow out from the liquid inlet 5 of the fan blade 3 as the fan 2 rotates, and then merge with the liquid in the tower and flow into the circulation pipe 6. The circulation pipe 6 will send the liquid back to the top of the tower through the water pump 7 for a second mass transfer.

[0026] In one specific embodiment of the present invention, the fan blade 3 is made of a rigid material, and the inner diameter of the end of the liquid inlet hole 32 on the fan blade 3 away from the chamber 33 is larger than the inner diameter of the end of the liquid inlet 5 near the chamber 33.

[0027] The fan blades 3 of fan 2 are made of aluminum alloy, which reduces elastic vibration when the fan blades 3 rotate and when they come into contact with other fan blades 3, causing the liquid in the chamber 33 to be shaken out, improving the stability of the liquid adhering to the metal packing 34 in the chamber 33 when the fan blades 3 rotate, thereby improving the mass transfer effect. The inner diameter of the liquid inlet hole 32 on the fan blade 3 at the end away from the chamber 33 is larger than the inner diameter of the liquid inlet 5 at the end closer to the chamber 33. When the fan blades 3 rotate, the liquid flows in from the end with the larger inner diameter of the liquid inlet hole 32, so that more liquid can be collected in the chamber 35, allowing the gas entering the chamber 33 to come into contact with more liquid, improving the mass transfer effect. When the liquid in the chamber 35 flows out during the rotation of the fan blades 3, the liquid flows out from the end with the smaller inner diameter of the liquid inlet hole 32 to the end with the larger inner diameter of the liquid inlet hole 32, delaying the liquid outflow time, further increasing the contact time between the liquid and the gas in the chamber 33, thereby further improving the mass transfer effect.

[0028] In one specific embodiment of the present invention, one or more protruding air bladders 11 are vertically provided on the tower wall located on the side of the liquid inlet 5 inside the tower body 1. Two symmetrical liquid holes 111 are opened on the surface of the air bladder 11. An air outlet is provided at the end of the air bladder 11 away from the inner wall of the tower body 1. A ventilation channel 10 is opened in the tower wall in contact with the air bladder 11. One end of the ventilation channel 10 is connected to the air bladder 11, and the end of the ventilation channel 10 away from the air bladder 11 is connected to the air inlet 9.

[0029] After the liquid falls and comes into contact with the fan blade 3, some of the liquid scatters on the inner wall of the tower body 1. The liquid splashed on the inner wall will flow through the air bladder 11 and into the air bladder 11 through the liquid hole 111, preventing wall flow and thus preventing uneven gas-liquid distribution. At the same time as the liquid flows into the air bladder 11, part of the gas from the air inlet 9 will flow through the air passage 10 into the air bladder 11, thus fully contacting the liquid flowing into the air bladder 11 and improving the mass transfer effect. The gas not only contacts the liquid inside the air bladder 11, but also blows towards the fan blade 3 through the air outlet at the top of the air bladder 11, contacting the liquid outside the air bladder 11, further expanding the gas-liquid contact area and further improving the mass transfer effect.

[0030] In one specific embodiment of the present invention, the end of the fan blade 3 away from the fan 2 is wrapped with a cushioning sponge 31.

[0031] When the blades 3 of adjacent fans 2 come into contact, the buffer sponge 31 reduces vibration of the blades 3 during contact, further improving the stability of the liquid attached to the metal packing 34 in the chamber 33 of the blades 3, and further improving the mass transfer efficiency in the chamber 33. When the liquid comes into contact with the blades 3, some liquid will be absorbed by the buffer sponge 31, and the gas will also pass through the sponge during its ascent and enter the sponge to come into contact with the liquid, further improving the mass transfer efficiency. During the rotation of the blades 3, the buffer sponges 31 on different blades 3 will come into contact with each other, and the buffer sponges 31 will also come into contact with the air bag 11, thereby squeezing the buffer sponges 31 and causing the liquid inside to flow out. The outflowing liquid is thrown out by the rotating blades 3, increasing the contact area between the liquid and the gas, and further improving the mass transfer efficiency.

[0032] In one specific embodiment of the present invention, one or more springs 13 are fixedly connected to the tower wall on the side away from the liquid inlet 5 inside the tower body 1. A stop block 12 is fixedly connected to the end of the spring 13 away from the tower wall, and the stop block 12 is in contact with the buffer sponge 31.

[0033] During the rotation of fan 2, the buffer sponge 31 on fan blade 3 will come into contact with the stop block 12. The stop block 12 further squeezes the buffer sponge 31, causing the liquid in the buffer sponge 31 to flow out. At the same time as the stop block 12 squeezes the buffer sponge 31, the stop block 12 is also affected by the buffer sponge 31 and bounces up and down under the action of spring 13, patting the falling liquid, thereby enhancing the effect of liquid dispersion, further enabling the liquid and gas to fully contact each other, and further improving the mass transfer efficiency.

[0034] In one specific embodiment of the present invention, the rotational speed of the motor 14 is 15 r / min.

[0035] The speed of motor 14 is controlled at 15 r / min to prevent the liquid inside the fan blades 3 from being thrown out due to excessive speed when the fan 2 is rotating.

[0036] The specific workflow is as follows:

[0037] After the liquid enters the tower body 1 through the liquid inlet 5, the motor 14 and the air inlet 9 start operating. The output of the motor 14 drives the fan 2 to rotate. While the fan 2 connected to the output of the motor 14 is rotating, the fan blade 3 contacts the fan blades 3 of other fans 2 and provides power, causing the other fans 2 to start rotating. As the liquid falls from the top of the tower to the bottom, it comes into contact with the rotating fan blades 3, causing the liquid to spread and increasing the contact area between the liquid and the gas, thereby improving the mass transfer effect. As the liquid splashes out, some of the liquid flows into the fan blade 3 chamber 33 through the liquid inlet 32 ​​on the fan blade 3, adhering to the metal packing 34 in the chamber 33, increasing the contact area between the liquid and the metal packing 34. As the gas... As the liquid gradually rises, the gas also enters the chamber 33 of the fan blade 3 through the liquid inlet 32, and comes into contact with the metal packing 34, further enhancing the mass transfer effect by allowing the liquid and gas to fully contact each other within the chamber 33. Furthermore, during the rotation of the fan blade 3, the metal packing 34 within the chamber 33 continuously sways, further increasing the contact area between the gas, liquid, and metal packing 34, thus further improving the mass transfer effect. The liquid adhering to the metal packing 34 also flows out from the liquid inlet 5 of the fan blade 3 as the fan 2 rotates, then merges with the liquid inside the tower and flows into the circulation pipe 6. The circulation pipe 6 then uses a water pump 7 to return the liquid to the top of the tower for a second mass transfer.

[0038] The fan blades 3 of the fan 2 are made of aluminum alloy, which reduces the elastic vibration that occurs when the fan blades 3 rotate and when they come into contact with other fan blades 3, causing the liquid in the chamber 33 to be shaken out, improving the stability of the liquid adhering to the metal packing 34 in the chamber 33 when the fan blades 3 rotate, thereby improving the mass transfer effect. The inner diameter of the liquid inlet hole 32 on the fan blade 3 at the end away from the chamber 33 is larger than the inner diameter of the liquid inlet 5 at the end near the chamber 33. When the fan blades 3 rotate, the liquid flows in from the end with the larger inner diameter of the liquid inlet hole 32, so that more liquid can be collected in the chamber 35, allowing the gas entering the chamber 33 to come into contact with more liquid, improving the mass transfer effect. When the liquid in the chamber 35 flows out during the rotation of the fan blades 3, the liquid flows out from the end with the smaller inner diameter of the liquid inlet hole 32 to the end with the larger inner diameter of the liquid inlet hole 32, delaying the liquid outflow time and further increasing the contact time between the liquid and the gas in the chamber 33.

[0039] After the liquid falls and comes into contact with the fan blade 3, some of the liquid scatters on the inner wall of the tower body 1. The liquid splashed on the inner wall will flow through the air bladder 11 and into the air bladder 11 through the liquid hole 111, preventing wall flow and thus preventing uneven gas-liquid distribution. At the same time as the liquid flows into the air bladder 11, part of the gas from the air inlet 9 will flow through the air passage 10 into the air bladder 11, thus fully contacting the liquid flowing into the air bladder 11 and improving the mass transfer effect. The gas not only contacts the liquid inside the air bladder 11, but also blows towards the fan blade 3 through the air outlet at the top of the air bladder 11, contacting the liquid outside the air bladder 11, further expanding the gas-liquid contact area and further improving the mass transfer effect.

[0040] When the blades 3 of adjacent fans 2 come into contact, the buffer sponge 31 reduces the vibration of the blades 3 during contact, further improving the stability of the liquid attached to the metal packing 34 in the chamber 33 of the blades 3, and further improving the mass transfer efficiency in the chamber 33; when the liquid comes into contact with the blades 3, some liquid will be absorbed by the buffer sponge 31, and the gas will also pass through the sponge during the rising process and enter the sponge to come into contact with the liquid, further improving the mass transfer efficiency; during the rotation of the blades 3, the buffer sponges 31 on the blades 3 will come into contact with each other, and the buffer sponges 31 will also come into contact with the air bag 11, thereby squeezing the buffer sponges 31 and causing the liquid inside to flow out. The outflowing liquid is thrown out by the rotating blades 3, increasing the contact area between the liquid and the gas.

[0041] During the rotation of fan 2, the buffer sponge 31 on the fan blade 3 will come into contact with the stop block 12. The stop block 12 further squeezes the buffer sponge 31, causing the liquid in the buffer sponge 31 to flow out. At the same time as the stop block 12 squeezes the buffer sponge 31, the stop block 12 is also affected by the buffer sponge 31 and bounces up and down under the action of the spring 13, patting the falling liquid, thereby enhancing the effect of liquid dispersion, further enabling the liquid and gas to fully contact, and further improving the mass transfer efficiency. The speed of motor 14 is controlled at 15 r / min, so that when fan 2 rotates, the liquid inside the fan blade 3 is prevented from being thrown out due to excessive speed.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-energy chemical light component removal tower, characterized in that: The system includes a tower body (1), a fan (2), and a motor (14). The fan (2) is vertically installed inside the tower body (1), and there is more than one fan (2). The motor (14) is fixedly connected to the outer wall of the tower body (1). The output end of the motor (14) passes through the tower wall of the tower body (1) and is fixedly connected to one of the fans (2). The fan blades (3) of two adjacent fans (2) are in contact with each other. A chamber (33) is opened inside the fan blade (3). The chamber (33) is filled with metal packing. A liquid inlet hole (32) is symmetrically opened on the wall (35) of the chamber (33). The liquid inlet hole (32) is connected to the chamber (33). The tower body (1) has an air outlet (4) at the top and a liquid inlet (5) on one side. A circulation pipe (6) connected to the bottom of the tower body (1) is provided on the side away from the liquid inlet (5). An electrically controlled valve (8) is provided on the side of the circulation pipe (6) near the bottom of the tower. The liquid in the circulation pipe (6) is returned to the tower body (1) by a water pump (7). An air inlet (9) is provided on one side of the bottom of the tower. An oil-proof and breathable membrane (15) is provided at the end of the air inlet (9) near the inner wall of the tower body (1). The fan blade (3) is made of a hard material, and the inner diameter of the end of the liquid inlet hole (32) on the fan blade (3) away from the chamber (33) is larger than the inner diameter of the end of the liquid inlet (5) close to the chamber (33); Inside the tower body (1), on the tower wall located on the side of the liquid inlet (5), there is one or more protruding air bladders (11). The surface of the air bladder (11) has two symmetrical liquid holes (111). The end of the air bladder (11) away from the inner wall of the tower body (1) has an air outlet. The tower wall in contact with the air bladder (11) has a ventilation channel (10). One end of the ventilation channel (10) is connected to the air bladder (11), and the end of the ventilation channel (10) away from the air bladder (11) is connected to the air inlet (9). The end of the fan blade (3) away from the fan (2) is wrapped with a buffer sponge (31). During the rotation of the fan blade (3), the buffer sponges (31) on different fan blades (3) will come into contact with each other, and the buffer sponges (31) will also come into contact with the air bag (11), thereby squeezing the buffer sponge (31) and causing the liquid inside to flow out. The liquid that flows out is thrown out by the rotating fan blade (3), which increases the contact area between the liquid and the gas and further improves the mass transfer efficiency. One or more springs (13) are fixedly connected to the tower wall on the side away from the liquid inlet (5) inside the tower body (1). A stop block (12) is fixedly connected to the end of the spring (13) away from the tower wall. The stop block (12) is in contact with the buffer sponge (31). The speed of the motor (14) is 15 r / min; After the liquid enters the tower body (1) through the inlet (5), the motor (14) and the air inlet (9) start to operate. The output end of the motor (14) drives the fan (2) to rotate. While the fan (2) connected to the output end of the motor (14) is rotating, the fan blade (3) contacts the fan blades (3) of other fans (2) and provides power, causing the other fans (2) to start rotating. As the liquid falls from the top of the tower to the bottom of the tower, it contacts the rotating fan blade (3), causing the liquid to scatter and increasing the contact area between the liquid and the gas, thereby improving the mass transfer effect. While the liquid splashes out, some of the liquid will flow into the fan blade (3) chamber (33) through the inlet hole (32) on the fan blade (3) and adhere to the metal packing (34) in the chamber (33), increasing the contact area between the liquid and the metal. The contact area of ​​the packing (34); as the gas gradually rises, the gas will also enter the fan blade (3) chamber (33) from the liquid inlet (32) of the fan blade (3) and come into contact with the metal packing (34), further enabling the liquid and gas to fully contact in the chamber (33). During the rotation of the fan blade (3), the metal packing (34) in the chamber (33) will continue to shake, further increasing the contact area between the gas, liquid and metal packing (34). The liquid attached to the metal packing (34) will also flow out from the liquid inlet (5) of the fan blade (3) as the fan (2) rotates, and then merge with the liquid in the tower and flow into the circulation pipe (6). The circulation pipe (6) sends the liquid back to the top of the tower through the water pump (7) for the second mass transfer.

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